diff options
150 files changed, 28769 insertions, 5663 deletions
diff --git a/Documentation/scsi/cxgb3i.txt b/Documentation/scsi/cxgb3i.txt new file mode 100644 index 0000000..8141fa0 --- /dev/null +++ b/Documentation/scsi/cxgb3i.txt @@ -0,0 +1,85 @@ +Chelsio S3 iSCSI Driver for Linux + +Introduction +============ + +The Chelsio T3 ASIC based Adapters (S310, S320, S302, S304, Mezz cards, etc. +series of products) supports iSCSI acceleration and iSCSI Direct Data Placement +(DDP) where the hardware handles the expensive byte touching operations, such +as CRC computation and verification, and direct DMA to the final host memory +destination: + + - iSCSI PDU digest generation and verification + + On transmitting, Chelsio S3 h/w computes and inserts the Header and + Data digest into the PDUs. + On receiving, Chelsio S3 h/w computes and verifies the Header and + Data digest of the PDUs. + + - Direct Data Placement (DDP) + + S3 h/w can directly place the iSCSI Data-In or Data-Out PDU's + payload into pre-posted final destination host-memory buffers based + on the Initiator Task Tag (ITT) in Data-In or Target Task Tag (TTT) + in Data-Out PDUs. + + - PDU Transmit and Recovery + + On transmitting, S3 h/w accepts the complete PDU (header + data) + from the host driver, computes and inserts the digests, decomposes + the PDU into multiple TCP segments if necessary, and transmit all + the TCP segments onto the wire. It handles TCP retransmission if + needed. + + On receving, S3 h/w recovers the iSCSI PDU by reassembling TCP + segments, separating the header and data, calculating and verifying + the digests, then forwards the header to the host. The payload data, + if possible, will be directly placed into the pre-posted host DDP + buffer. Otherwise, the payload data will be sent to the host too. + +The cxgb3i driver interfaces with open-iscsi initiator and provides the iSCSI +acceleration through Chelsio hardware wherever applicable. + +Using the cxgb3i Driver +======================= + +The following steps need to be taken to accelerates the open-iscsi initiator: + +1. Load the cxgb3i driver: "modprobe cxgb3i" + + The cxgb3i module registers a new transport class "cxgb3i" with open-iscsi. + + * in the case of recompiling the kernel, the cxgb3i selection is located at + Device Drivers + SCSI device support ---> + [*] SCSI low-level drivers ---> + <M> Chelsio S3xx iSCSI support + +2. Create an interface file located under /etc/iscsi/ifaces/ for the new + transport class "cxgb3i". + + The content of the file should be in the following format: + iface.transport_name = cxgb3i + iface.net_ifacename = <ethX> + iface.ipaddress = <iscsi ip address> + + * if iface.ipaddress is specified, <iscsi ip address> needs to be either the + same as the ethX's ip address or an address on the same subnet. Make + sure the ip address is unique in the network. + +3. edit /etc/iscsi/iscsid.conf + The default setting for MaxRecvDataSegmentLength (131072) is too big, + replace "node.conn[0].iscsi.MaxRecvDataSegmentLength" to be a value no + bigger than 15360 (for example 8192): + + node.conn[0].iscsi.MaxRecvDataSegmentLength = 8192 + + * The login would fail for a normal session if MaxRecvDataSegmentLength is + too big. A error message in the format of + "cxgb3i: ERR! MaxRecvSegmentLength <X> too big. Need to be <= <Y>." + would be logged to dmesg. + +4. To direct open-iscsi traffic to go through cxgb3i's accelerated path, + "-I <iface file name>" option needs to be specified with most of the + iscsiadm command. <iface file name> is the transport interface file created + in step 2. diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 0b2e14f..4040d8b 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -517,7 +517,7 @@ int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg) /* Good values for timeout and retries? Values below from scsi_ioctl_send_command() for default case... */ cmd_result = scsi_execute(scsidev, scsi_cmd, data_dir, argbuf, argsize, - sensebuf, (10*HZ), 5, 0); + sensebuf, (10*HZ), 5, 0, NULL); if (driver_byte(cmd_result) == DRIVER_SENSE) {/* sense data available */ u8 *desc = sensebuf + 8; @@ -603,7 +603,7 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg) /* Good values for timeout and retries? Values below from scsi_ioctl_send_command() for default case... */ cmd_result = scsi_execute(scsidev, scsi_cmd, DMA_NONE, NULL, 0, - sensebuf, (10*HZ), 5, 0); + sensebuf, (10*HZ), 5, 0, NULL); if (driver_byte(cmd_result) == DRIVER_SENSE) {/* sense data available */ u8 *desc = sensebuf + 8; diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 1e5b644..1287639 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -119,6 +119,14 @@ error: iscsi_conn_failure(conn, rc); } +static int iscsi_iser_pdu_alloc(struct iscsi_task *task, uint8_t opcode) +{ + struct iscsi_iser_task *iser_task = task->dd_data; + + task->hdr = (struct iscsi_hdr *)&iser_task->desc.iscsi_header; + task->hdr_max = sizeof(iser_task->desc.iscsi_header); + return 0; +} /** * iscsi_iser_task_init - Initialize task @@ -180,25 +188,26 @@ static int iscsi_iser_task_xmit_unsol_data(struct iscsi_conn *conn, struct iscsi_task *task) { - struct iscsi_data hdr; + struct iscsi_r2t_info *r2t = &task->unsol_r2t; + struct iscsi_data hdr; int error = 0; /* Send data-out PDUs while there's still unsolicited data to send */ - while (task->unsol_count > 0) { - iscsi_prep_unsolicit_data_pdu(task, &hdr); + while (iscsi_task_has_unsol_data(task)) { + iscsi_prep_data_out_pdu(task, r2t, &hdr); debug_scsi("Sending data-out: itt 0x%x, data count %d\n", - hdr.itt, task->data_count); + hdr.itt, r2t->data_count); /* the buffer description has been passed with the command */ /* Send the command */ error = iser_send_data_out(conn, task, &hdr); if (error) { - task->unsol_datasn--; + r2t->datasn--; goto iscsi_iser_task_xmit_unsol_data_exit; } - task->unsol_count -= task->data_count; + r2t->sent += r2t->data_count; debug_scsi("Need to send %d more as data-out PDUs\n", - task->unsol_count); + r2t->data_length - r2t->sent); } iscsi_iser_task_xmit_unsol_data_exit: @@ -220,7 +229,7 @@ iscsi_iser_task_xmit(struct iscsi_task *task) debug_scsi("cmd [itt %x total %d imm %d unsol_data %d\n", task->itt, scsi_bufflen(task->sc), - task->imm_count, task->unsol_count); + task->imm_count, task->unsol_r2t.data_length); } debug_scsi("task deq [cid %d itt 0x%x]\n", @@ -235,7 +244,7 @@ iscsi_iser_task_xmit(struct iscsi_task *task) } /* Send unsolicited data-out PDU(s) if necessary */ - if (task->unsol_count) + if (iscsi_task_has_unsol_data(task)) error = iscsi_iser_task_xmit_unsol_data(conn, task); iscsi_iser_task_xmit_exit: @@ -244,13 +253,15 @@ iscsi_iser_task_xmit(struct iscsi_task *task) return error; } -static void -iscsi_iser_cleanup_task(struct iscsi_conn *conn, struct iscsi_task *task) +static void iscsi_iser_cleanup_task(struct iscsi_task *task) { struct iscsi_iser_task *iser_task = task->dd_data; - /* mgmt tasks do not need special cleanup */ - if (!task->sc) + /* + * mgmt tasks do not need special cleanup and we do not + * allocate anything in the init task callout + */ + if (!task->sc || task->state == ISCSI_TASK_PENDING) return; if (iser_task->status == ISER_TASK_STATUS_STARTED) { @@ -391,9 +402,6 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep, struct iscsi_cls_session *cls_session; struct iscsi_session *session; struct Scsi_Host *shost; - int i; - struct iscsi_task *task; - struct iscsi_iser_task *iser_task; struct iser_conn *ib_conn; shost = iscsi_host_alloc(&iscsi_iser_sht, 0, ISCSI_MAX_CMD_PER_LUN); @@ -430,13 +438,6 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep, session = cls_session->dd_data; shost->can_queue = session->scsi_cmds_max; - /* libiscsi setup itts, data and pool so just set desc fields */ - for (i = 0; i < session->cmds_max; i++) { - task = session->cmds[i]; - iser_task = task->dd_data; - task->hdr = (struct iscsi_cmd *)&iser_task->desc.iscsi_header; - task->hdr_max = sizeof(iser_task->desc.iscsi_header); - } return cls_session; remove_host: @@ -652,6 +653,7 @@ static struct iscsi_transport iscsi_iser_transport = { .init_task = iscsi_iser_task_init, .xmit_task = iscsi_iser_task_xmit, .cleanup_task = iscsi_iser_cleanup_task, + .alloc_pdu = iscsi_iser_pdu_alloc, /* recovery */ .session_recovery_timedout = iscsi_session_recovery_timedout, diff --git a/drivers/infiniband/ulp/iser/iser_initiator.c b/drivers/infiniband/ulp/iser/iser_initiator.c index ed1aff2..e209cb8d 100644 --- a/drivers/infiniband/ulp/iser/iser_initiator.c +++ b/drivers/infiniband/ulp/iser/iser_initiator.c @@ -353,8 +353,7 @@ int iser_send_command(struct iscsi_conn *conn, unsigned long edtl; int err = 0; struct iser_data_buf *data_buf; - - struct iscsi_cmd *hdr = task->hdr; + struct iscsi_cmd *hdr = (struct iscsi_cmd *)task->hdr; struct scsi_cmnd *sc = task->sc; if (!iser_conn_state_comp(iser_conn->ib_conn, ISER_CONN_UP)) { @@ -393,7 +392,7 @@ int iser_send_command(struct iscsi_conn *conn, err = iser_prepare_write_cmd(task, task->imm_count, task->imm_count + - task->unsol_count, + task->unsol_r2t.data_length, edtl); if (err) goto send_command_error; diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index d6a0074..c4e8b9a 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -952,7 +952,6 @@ mpt_put_msg_frame_hi_pri(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf) /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** * mpt_free_msg_frame - Place MPT request frame back on FreeQ. - * @handle: Handle of registered MPT protocol driver * @ioc: Pointer to MPT adapter structure * @mf: Pointer to MPT request frame * @@ -4563,7 +4562,7 @@ WaitForDoorbellReply(MPT_ADAPTER *ioc, int howlong, int sleepFlag) failcnt++; hword = le16_to_cpu(CHIPREG_READ32(&ioc->chip->Doorbell) & 0x0000FFFF); /* don't overflow our IOC hs_reply[] buffer! */ - if (u16cnt < sizeof(ioc->hs_reply) / sizeof(ioc->hs_reply[0])) + if (u16cnt < ARRAY_SIZE(ioc->hs_reply)) hs_reply[u16cnt] = hword; CHIPREG_WRITE32(&ioc->chip->IntStatus, 0); } @@ -5422,7 +5421,6 @@ mpt_raid_phys_disk_pg0(MPT_ADAPTER *ioc, u8 phys_disk_num, pRaidPhysDiskPage0_t /** * mpt_findImVolumes - Identify IDs of hidden disks and RAID Volumes * @ioc: Pointer to a Adapter Strucutre - * @portnum: IOC port number * * Return: * 0 on success @@ -6939,7 +6937,6 @@ mpt_fc_log_info(MPT_ADAPTER *ioc, u32 log_info) /** * mpt_spi_log_info - Log information returned from SCSI Parallel IOC. * @ioc: Pointer to MPT_ADAPTER structure - * @mr: Pointer to MPT reply frame * @log_info: U32 LogInfo word from the IOC * * Refer to lsi/sp_log.h. @@ -7176,7 +7173,7 @@ union loginfo_type { sas_loginfo.loginfo = log_info; if ((sas_loginfo.dw.bus_type != 3 /*SAS*/) && - (sas_loginfo.dw.originator < sizeof(originator_str)/sizeof(char*))) + (sas_loginfo.dw.originator < ARRAY_SIZE(originator_str))) return; originator_desc = originator_str[sas_loginfo.dw.originator]; @@ -7185,21 +7182,21 @@ union loginfo_type { case 0: /* IOP */ if (sas_loginfo.dw.code < - sizeof(iop_code_str)/sizeof(char*)) + ARRAY_SIZE(iop_code_str)) code_desc = iop_code_str[sas_loginfo.dw.code]; break; case 1: /* PL */ if (sas_loginfo.dw.code < - sizeof(pl_code_str)/sizeof(char*)) + ARRAY_SIZE(pl_code_str)) code_desc = pl_code_str[sas_loginfo.dw.code]; break; case 2: /* IR */ if (sas_loginfo.dw.code >= - sizeof(ir_code_str)/sizeof(char*)) + ARRAY_SIZE(ir_code_str)) break; code_desc = ir_code_str[sas_loginfo.dw.code]; if (sas_loginfo.dw.subcode >= - sizeof(raid_sub_code_str)/sizeof(char*)) + ARRAY_SIZE(raid_sub_code_str)) break; if (sas_loginfo.dw.code == 0) sub_code_desc = diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 72a9212..9a18270 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2399,9 +2399,14 @@ config CHELSIO_T1_1G Enables support for Chelsio's gigabit Ethernet PCI cards. If you are using only 10G cards say 'N' here. +config CHELSIO_T3_DEPENDS + tristate + depends on PCI && INET + default y + config CHELSIO_T3 tristate "Chelsio Communications T3 10Gb Ethernet support" - depends on PCI && INET + depends on CHELSIO_T3_DEPENDS select FW_LOADER select INET_LRO help diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index e529b55..8af7dfb 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -34,13 +34,12 @@ #define ZFCP_BUS_ID_SIZE 20 -static char *device; - MODULE_AUTHOR("IBM Deutschland Entwicklung GmbH - linux390@de.ibm.com"); MODULE_DESCRIPTION("FCP HBA driver"); MODULE_LICENSE("GPL"); -module_param(device, charp, 0400); +static char *init_device; +module_param_named(device, init_device, charp, 0400); MODULE_PARM_DESC(device, "specify initial device"); static int zfcp_reqlist_alloc(struct zfcp_adapter *adapter) @@ -73,46 +72,7 @@ int zfcp_reqlist_isempty(struct zfcp_adapter *adapter) return 1; } -static int __init zfcp_device_setup(char *devstr) -{ - char *token; - char *str; - - if (!devstr) - return 0; - - /* duplicate devstr and keep the original for sysfs presentation*/ - str = kmalloc(strlen(devstr) + 1, GFP_KERNEL); - if (!str) - return 0; - - strcpy(str, devstr); - - token = strsep(&str, ","); - if (!token || strlen(token) >= ZFCP_BUS_ID_SIZE) - goto err_out; - strncpy(zfcp_data.init_busid, token, ZFCP_BUS_ID_SIZE); - - token = strsep(&str, ","); - if (!token || strict_strtoull(token, 0, - (unsigned long long *) &zfcp_data.init_wwpn)) - goto err_out; - - token = strsep(&str, ","); - if (!token || strict_strtoull(token, 0, - (unsigned long long *) &zfcp_data.init_fcp_lun)) - goto err_out; - - kfree(str); - return 1; - - err_out: - kfree(str); - pr_err("%s is not a valid SCSI device\n", devstr); - return 0; -} - -static void __init zfcp_init_device_configure(void) +static void __init zfcp_init_device_configure(char *busid, u64 wwpn, u64 lun) { struct zfcp_adapter *adapter; struct zfcp_port *port; @@ -120,17 +80,17 @@ static void __init zfcp_init_device_configure(void) down(&zfcp_data.config_sema); read_lock_irq(&zfcp_data.config_lock); - adapter = zfcp_get_adapter_by_busid(zfcp_data.init_busid); + adapter = zfcp_get_adapter_by_busid(busid); if (adapter) zfcp_adapter_get(adapter); read_unlock_irq(&zfcp_data.config_lock); if (!adapter) goto out_adapter; - port = zfcp_port_enqueue(adapter, zfcp_data.init_wwpn, 0, 0); + port = zfcp_port_enqueue(adapter, wwpn, 0, 0); if (IS_ERR(port)) goto out_port; - unit = zfcp_unit_enqueue(port, zfcp_data.init_fcp_lun); + unit = zfcp_unit_enqueue(port, lun); if (IS_ERR(unit)) goto out_unit; up(&zfcp_data.config_sema); @@ -160,6 +120,42 @@ static struct kmem_cache *zfcp_cache_create(int size, char *name) return kmem_cache_create(name , size, align, 0, NULL); } +static void __init zfcp_init_device_setup(char *devstr) +{ + char *token; + char *str; + char busid[ZFCP_BUS_ID_SIZE]; + u64 wwpn, lun; + + /* duplicate devstr and keep the original for sysfs presentation*/ + str = kmalloc(strlen(devstr) + 1, GFP_KERNEL); + if (!str) + return; + + strcpy(str, devstr); + + token = strsep(&str, ","); + if (!token || strlen(token) >= ZFCP_BUS_ID_SIZE) + goto err_out; + strncpy(busid, token, ZFCP_BUS_ID_SIZE); + + token = strsep(&str, ","); + if (!token || strict_strtoull(token, 0, (unsigned long long *) &wwpn)) + goto err_out; + + token = strsep(&str, ","); + if (!token || strict_strtoull(token, 0, (unsigned long long *) &lun)) + goto err_out; + + kfree(str); + zfcp_init_device_configure(busid, wwpn, lun); + return; + + err_out: + kfree(str); + pr_err("%s is not a valid SCSI device\n", devstr); +} + static int __init zfcp_module_init(void) { int retval = -ENOMEM; @@ -181,7 +177,6 @@ static int __init zfcp_module_init(void) zfcp_data.work_queue = create_singlethread_workqueue("zfcp_wq"); - INIT_LIST_HEAD(&zfcp_data.adapter_list_head); sema_init(&zfcp_data.config_sema, 1); rwlock_init(&zfcp_data.config_lock); @@ -203,10 +198,9 @@ static int __init zfcp_module_init(void) goto out_ccw_register; } - if (zfcp_device_setup(device)) - zfcp_init_device_configure(); - - goto out; + if (init_device) + zfcp_init_device_setup(init_device); + return 0; out_ccw_register: misc_deregister(&zfcp_cfdc_misc); @@ -527,14 +521,11 @@ int zfcp_adapter_enqueue(struct ccw_device *ccw_device) &zfcp_sysfs_adapter_attrs)) goto sysfs_failed; - write_lock_irq(&zfcp_data.config_lock); atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status); - list_add_tail(&adapter->list, &zfcp_data.adapter_list_head); - write_unlock_irq(&zfcp_data.config_lock); - zfcp_fc_nameserver_init(adapter); - return 0; + if (!zfcp_adapter_scsi_register(adapter)) + return 0; sysfs_failed: zfcp_adapter_debug_unregister(adapter); @@ -573,14 +564,7 @@ void zfcp_adapter_dequeue(struct zfcp_adapter *adapter) return; zfcp_adapter_debug_unregister(adapter); - - /* remove specified adapter data structure from list */ - write_lock_irq(&zfcp_data.config_lock); - list_del(&adapter->list); - write_unlock_irq(&zfcp_data.config_lock); - zfcp_qdio_free(adapter); - zfcp_free_low_mem_buffers(adapter); kfree(adapter->req_list); kfree(adapter->fc_stats); diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index 7281471..285881f 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -106,10 +106,6 @@ static int zfcp_ccw_set_online(struct ccw_device *ccw_device) if (retval) goto out; - retval = zfcp_adapter_scsi_register(adapter); - if (retval) - goto out_scsi_register; - /* initialize request counter */ BUG_ON(!zfcp_reqlist_isempty(adapter)); adapter->req_no = 0; @@ -123,8 +119,6 @@ static int zfcp_ccw_set_online(struct ccw_device *ccw_device) flush_work(&adapter->scan_work); return 0; - out_scsi_register: - zfcp_erp_thread_kill(adapter); out: up(&zfcp_data.config_sema); return retval; diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c index f1a7518..10cbfd1 100644 --- a/drivers/s390/scsi/zfcp_cfdc.c +++ b/drivers/s390/scsi/zfcp_cfdc.c @@ -85,20 +85,9 @@ static int zfcp_cfdc_copy_to_user(void __user *user_buffer, static struct zfcp_adapter *zfcp_cfdc_get_adapter(u32 devno) { - struct zfcp_adapter *adapter = NULL, *cur_adapter; - struct ccw_dev_id dev_id; - - read_lock_irq(&zfcp_data.config_lock); - list_for_each_entry(cur_adapter, &zfcp_data.adapter_list_head, list) { - ccw_device_get_id(cur_adapter->ccw_device, &dev_id); - if (dev_id.devno == devno) { - adapter = cur_adapter; - zfcp_adapter_get(adapter); - break; - } - } - read_unlock_irq(&zfcp_data.config_lock); - return adapter; + char busid[9]; + snprintf(busid, sizeof(busid), "0.0.%04x", devno); + return zfcp_get_adapter_by_busid(busid); } static int zfcp_cfdc_set_fsf(struct zfcp_fsf_cfdc *fsf_cfdc, int command) diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index 735d675..cb6df60 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -522,7 +522,7 @@ static const char *zfcp_rec_dbf_ids[] = { [29] = "link down", [30] = "link up status read", [31] = "open port failed", - [32] = "open port failed", + [32] = "", [33] = "close port", [34] = "open unit failed", [35] = "exclusive open unit failed", @@ -936,6 +936,7 @@ void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *fsf_req) rct->reason_code = hdr->reason_code; rct->expl = hdr->reason_code_expl; rct->vendor_unique = hdr->vendor_unique; + rct->max_res_size = hdr->max_res_size; rct->len = min((int)ct->resp->length - (int)sizeof(struct ct_hdr), ZFCP_DBF_SAN_MAX_PAYLOAD); debug_event(adapter->san_dbf, level, r, sizeof(*r)); @@ -1043,6 +1044,7 @@ static int zfcp_san_dbf_view_format(debug_info_t *id, struct debug_view *view, zfcp_dbf_out(&p, "reason_code", "0x%02x", ct->reason_code); zfcp_dbf_out(&p, "reason_code_expl", "0x%02x", ct->expl); zfcp_dbf_out(&p, "vendor_unique", "0x%02x", ct->vendor_unique); + zfcp_dbf_out(&p, "max_res_size", "0x%04x", ct->max_res_size); } else if (strncmp(r->tag, "oels", ZFCP_DBF_TAG_SIZE) == 0 || strncmp(r->tag, "rels", ZFCP_DBF_TAG_SIZE) == 0 || strncmp(r->tag, "iels", ZFCP_DBF_TAG_SIZE) == 0) { @@ -1249,7 +1251,7 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter) char dbf_name[DEBUG_MAX_NAME_LEN]; /* debug feature area which records recovery activity */ - sprintf(dbf_name, "zfcp_%s_rec", zfcp_get_busid_by_adapter(adapter)); + sprintf(dbf_name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev)); adapter->rec_dbf = debug_register(dbf_name, dbfsize, 1, sizeof(struct zfcp_rec_dbf_record)); if (!adapter->rec_dbf) @@ -1259,7 +1261,7 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter) debug_set_level(adapter->rec_dbf, 3); /* debug feature area which records HBA (FSF and QDIO) conditions */ - sprintf(dbf_name, "zfcp_%s_hba", zfcp_get_busid_by_adapter(adapter)); + sprintf(dbf_name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev)); adapter->hba_dbf = debug_register(dbf_name, dbfsize, 1, sizeof(struct zfcp_hba_dbf_record)); if (!adapter->hba_dbf) @@ -1269,7 +1271,7 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter) debug_set_level(adapter->hba_dbf, 3); /* debug feature area which records SAN command failures and recovery */ - sprintf(dbf_name, "zfcp_%s_san", zfcp_get_busid_by_adapter(adapter)); + sprintf(dbf_name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev)); adapter->san_dbf = debug_register(dbf_name, dbfsize, 1, sizeof(struct zfcp_san_dbf_record)); if (!adapter->san_dbf) @@ -1279,7 +1281,7 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter) debug_set_level(adapter->san_dbf, 6); /* debug feature area which records SCSI command failures and recovery */ - sprintf(dbf_name, "zfcp_%s_scsi", zfcp_get_busid_by_adapter(adapter)); + sprintf(dbf_name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev)); adapter->scsi_dbf = debug_register(dbf_name, dbfsize, 1, sizeof(struct zfcp_scsi_dbf_record)); if (!adapter->scsi_dbf) diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h index 5d6b2df..74998ff 100644 --- a/drivers/s390/scsi/zfcp_dbf.h +++ b/drivers/s390/scsi/zfcp_dbf.h @@ -171,6 +171,7 @@ struct zfcp_san_dbf_record_ct_response { u8 reason_code; u8 expl; u8 vendor_unique; + u16 max_res_size; u32 len; } __attribute__ ((packed)); diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index e19e46a..5106627 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -159,20 +159,6 @@ struct fcp_rscn_element { u32 nport_did:24; } __attribute__((packed)); -#define ZFCP_PORT_ADDRESS 0x0 -#define ZFCP_AREA_ADDRESS 0x1 -#define ZFCP_DOMAIN_ADDRESS 0x2 -#define ZFCP_FABRIC_ADDRESS 0x3 - -#define ZFCP_PORTS_RANGE_PORT 0xFFFFFF -#define ZFCP_PORTS_RANGE_AREA 0xFFFF00 -#define ZFCP_PORTS_RANGE_DOMAIN 0xFF0000 -#define ZFCP_PORTS_RANGE_FABRIC 0x000000 - -#define ZFCP_NO_PORTS_PER_AREA 0x100 -#define ZFCP_NO_PORTS_PER_DOMAIN 0x10000 -#define ZFCP_NO_PORTS_PER_FABRIC 0x1000000 - /* see fc-ph */ struct fcp_logo { u32 command; @@ -211,7 +197,6 @@ struct zfcp_ls_adisc { #define ZFCP_CT_UNABLE_TO_PERFORM_CMD 0x09 #define ZFCP_CT_GID_PN 0x0121 #define ZFCP_CT_GPN_FT 0x0172 -#define ZFCP_CT_MAX_SIZE 0x1020 #define ZFCP_CT_ACCEPT 0x8002 #define ZFCP_CT_REJECT 0x8001 @@ -258,7 +243,6 @@ struct zfcp_ls_adisc { /* remote port status */ #define ZFCP_STATUS_PORT_PHYS_OPEN 0x00000001 -#define ZFCP_STATUS_PORT_DID_DID 0x00000002 #define ZFCP_STATUS_PORT_PHYS_CLOSING 0x00000004 #define ZFCP_STATUS_PORT_NO_WWPN 0x00000008 #define ZFCP_STATUS_PORT_INVALID_WWPN 0x00000020 @@ -340,8 +324,6 @@ struct ct_iu_gid_pn_resp { * @wka_port: port where the request is sent to * @req: scatter-gather list for request * @resp: scatter-gather list for response - * @req_count: number of elements in request scatter-gather list - * @resp_count: number of elements in response scatter-gather list * @handler: handler function (called for response to the request) * @handler_data: data passed to handler function * @timeout: FSF timeout for this request @@ -352,8 +334,6 @@ struct zfcp_send_ct { struct zfcp_wka_port *wka_port; struct scatterlist *req; struct scatterlist *resp; - unsigned int req_count; - unsigned int resp_count; void (*handler)(unsigned long); unsigned long handler_data; int timeout; @@ -378,8 +358,6 @@ struct zfcp_gid_pn_data { * @d_id: destiniation id of port where request is sent to * @req: scatter-gather list for request * @resp: scatter-gather list for response - * @req_count: number of elements in request scatter-gather list - * @resp_count: number of elements in response scatter-gather list * @handler: handler function (called for response to the request) * @handler_data: data passed to handler function * @completion: completion for synchronization purposes @@ -392,8 +370,6 @@ struct zfcp_send_els { u32 d_id; struct scatterlist *req; struct scatterlist *resp; - unsigned int req_count; - unsigned int resp_count; void (*handler)(unsigned long); unsigned long handler_data; struct completion *completion; @@ -451,7 +427,6 @@ struct zfcp_latencies { }; struct zfcp_adapter { - struct list_head list; /* list of adapters */ atomic_t refcount; /* reference count */ wait_queue_head_t remove_wq; /* can be used to wait for refcount drop to zero */ @@ -593,16 +568,11 @@ struct zfcp_fsf_req { struct zfcp_data { struct scsi_host_template scsi_host_template; struct scsi_transport_template *scsi_transport_template; - struct list_head adapter_list_head; /* head of adapter list */ rwlock_t config_lock; /* serialises changes to adapter/port/unit lists */ struct semaphore config_sema; /* serialises configuration changes */ - atomic_t loglevel; /* current loglevel */ - char init_busid[20]; - u64 init_wwpn; - u64 init_fcp_lun; struct kmem_cache *fsf_req_qtcb_cache; struct kmem_cache *sr_buffer_cache; struct kmem_cache *gid_pn_cache; @@ -623,8 +593,6 @@ struct zfcp_fsf_req_qtcb { #define ZFCP_SET 0x00000100 #define ZFCP_CLEAR 0x00000200 -#define zfcp_get_busid_by_adapter(adapter) (dev_name(&adapter->ccw_device->dev)) - /* * Helper functions for request ID management. */ diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 4ed4950..387a3af 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -840,7 +840,6 @@ static int zfcp_erp_open_ptp_port(struct zfcp_erp_action *act) return ZFCP_ERP_FAILED; } port->d_id = adapter->peer_d_id; - atomic_set_mask(ZFCP_STATUS_PORT_DID_DID, &port->status); return zfcp_erp_port_strategy_open_port(act); } @@ -871,12 +870,12 @@ static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act) case ZFCP_ERP_STEP_PORT_CLOSING: if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_PTP) return zfcp_erp_open_ptp_port(act); - if (!(p_status & ZFCP_STATUS_PORT_DID_DID)) { + if (!port->d_id) { queue_work(zfcp_data.work_queue, &port->gid_pn_work); return ZFCP_ERP_CONTINUES; } case ZFCP_ERP_STEP_NAMESERVER_LOOKUP: - if (!(p_status & ZFCP_STATUS_PORT_DID_DID)) { + if (!port->d_id) { if (p_status & (ZFCP_STATUS_PORT_INVALID_WWPN)) { zfcp_erp_port_failed(port, 26, NULL); return ZFCP_ERP_EXIT; @@ -888,7 +887,7 @@ static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act) case ZFCP_ERP_STEP_PORT_OPENING: /* D_ID might have changed during open */ if (p_status & ZFCP_STATUS_COMMON_OPEN) { - if (p_status & ZFCP_STATUS_PORT_DID_DID) + if (port->d_id) return ZFCP_ERP_SUCCEEDED; else { act->step = ZFCP_ERP_STEP_PORT_CLOSING; @@ -1385,6 +1384,7 @@ static int zfcp_erp_thread(void *data) struct list_head *next; struct zfcp_erp_action *act; unsigned long flags; + int ignore; daemonize("zfcperp%s", dev_name(&adapter->ccw_device->dev)); /* Block all signals */ @@ -1407,7 +1407,7 @@ static int zfcp_erp_thread(void *data) } zfcp_rec_dbf_event_thread_lock(4, adapter); - down_interruptible(&adapter->erp_ready_sem); + ignore = down_interruptible(&adapter->erp_ready_sem); zfcp_rec_dbf_event_thread_lock(5, adapter); } diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c index f009f2a..eabdfe2 100644 --- a/drivers/s390/scsi/zfcp_fc.c +++ b/drivers/s390/scsi/zfcp_fc.c @@ -11,6 +11,20 @@ #include "zfcp_ext.h" +enum rscn_address_format { + RSCN_PORT_ADDRESS = 0x0, + RSCN_AREA_ADDRESS = 0x1, + RSCN_DOMAIN_ADDRESS = 0x2, + RSCN_FABRIC_ADDRESS = 0x3, +}; + +static u32 rscn_range_mask[] = { + [RSCN_PORT_ADDRESS] = 0xFFFFFF, + [RSCN_AREA_ADDRESS] = 0xFFFF00, + [RSCN_DOMAIN_ADDRESS] = 0xFF0000, + [RSCN_FABRIC_ADDRESS] = 0x000000, +}; + struct ct_iu_gpn_ft_req { struct ct_hdr header; u8 flags; @@ -26,9 +40,12 @@ struct gpn_ft_resp_acc { u64 wwpn; } __attribute__ ((packed)); -#define ZFCP_GPN_FT_ENTRIES ((PAGE_SIZE - sizeof(struct ct_hdr)) \ - / sizeof(struct gpn_ft_resp_acc)) +#define ZFCP_CT_SIZE_ONE_PAGE (PAGE_SIZE - sizeof(struct ct_hdr)) +#define ZFCP_GPN_FT_ENTRIES (ZFCP_CT_SIZE_ONE_PAGE \ + / sizeof(struct gpn_ft_resp_acc)) #define ZFCP_GPN_FT_BUFFERS 4 +#define ZFCP_GPN_FT_MAX_SIZE (ZFCP_GPN_FT_BUFFERS * PAGE_SIZE \ + - sizeof(struct ct_hdr)) #define ZFCP_GPN_FT_MAX_ENTRIES ZFCP_GPN_FT_BUFFERS * (ZFCP_GPN_FT_ENTRIES + 1) struct ct_iu_gpn_ft_resp { @@ -160,22 +177,7 @@ static void zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req) for (i = 1; i < no_entries; i++) { /* skip head and start with 1st element */ fcp_rscn_element++; - switch (fcp_rscn_element->addr_format) { - case ZFCP_PORT_ADDRESS: - range_mask = ZFCP_PORTS_RANGE_PORT; - break; - case ZFCP_AREA_ADDRESS: - range_mask = ZFCP_PORTS_RANGE_AREA; - break; - case ZFCP_DOMAIN_ADDRESS: - range_mask = ZFCP_PORTS_RANGE_DOMAIN; - break; - case ZFCP_FABRIC_ADDRESS: - range_mask = ZFCP_PORTS_RANGE_FABRIC; - break; - default: - continue; - } + range_mask = rscn_range_mask[fcp_rscn_element->addr_format]; _zfcp_fc_incoming_rscn(fsf_req, range_mask, fcp_rscn_element); } schedule_work(&fsf_req->adapter->scan_work); @@ -266,7 +268,6 @@ static void zfcp_fc_ns_gid_pn_eval(unsigned long data) return; /* looks like a valid d_id */ port->d_id = ct_iu_resp->d_id & ZFCP_DID_MASK; - atomic_set_mask(ZFCP_STATUS_PORT_DID_DID, &port->status); } int static zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *erp_action, @@ -284,8 +285,6 @@ int static zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *erp_action, gid_pn->ct.timeout = ZFCP_NS_GID_PN_TIMEOUT; gid_pn->ct.req = &gid_pn->req; gid_pn->ct.resp = &gid_pn->resp; - gid_pn->ct.req_count = 1; - gid_pn->ct.resp_count = 1; sg_init_one(&gid_pn->req, &gid_pn->ct_iu_req, sizeof(struct ct_iu_gid_pn_req)); sg_init_one(&gid_pn->resp, &gid_pn->ct_iu_resp, @@ -297,7 +296,7 @@ int static zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *erp_action, gid_pn->ct_iu_req.header.gs_subtype = ZFCP_CT_NAME_SERVER; gid_pn->ct_iu_req.header.options = ZFCP_CT_SYNCHRONOUS; gid_pn->ct_iu_req.header.cmd_rsp_code = ZFCP_CT_GID_PN; - gid_pn->ct_iu_req.header.max_res_size = ZFCP_CT_MAX_SIZE; + gid_pn->ct_iu_req.header.max_res_size = ZFCP_CT_SIZE_ONE_PAGE / 4; gid_pn->ct_iu_req.wwpn = erp_action->port->wwpn; init_completion(&compl_rec.done); @@ -407,8 +406,6 @@ static int zfcp_fc_adisc(struct zfcp_port *port) sg_init_one(adisc->els.resp, &adisc->ls_adisc_acc, sizeof(struct zfcp_ls_adisc)); - adisc->els.req_count = 1; - adisc->els.resp_count = 1; adisc->els.adapter = adapter; adisc->els.port = port; adisc->els.d_id = port->d_id; @@ -448,17 +445,17 @@ void zfcp_test_link(struct zfcp_port *port) zfcp_erp_port_forced_reopen(port, 0, 65, NULL); } -static void zfcp_free_sg_env(struct zfcp_gpn_ft *gpn_ft) +static void zfcp_free_sg_env(struct zfcp_gpn_ft *gpn_ft, int buf_num) { struct scatterlist *sg = &gpn_ft->sg_req; kfree(sg_virt(sg)); /* free request buffer */ - zfcp_sg_free_table(gpn_ft->sg_resp, ZFCP_GPN_FT_BUFFERS); + zfcp_sg_free_table(gpn_ft->sg_resp, buf_num); kfree(gpn_ft); } -static struct zfcp_gpn_ft *zfcp_alloc_sg_env(void) +static struct zfcp_gpn_ft *zfcp_alloc_sg_env(int buf_num) { struct zfcp_gpn_ft *gpn_ft; struct ct_iu_gpn_ft_req *req; @@ -475,8 +472,8 @@ static struct zfcp_gpn_ft *zfcp_alloc_sg_env(void) } sg_init_one(&gpn_ft->sg_req, req, sizeof(*req)); - if (zfcp_sg_setup_table(gpn_ft->sg_resp, ZFCP_GPN_FT_BUFFERS)) { - zfcp_free_sg_env(gpn_ft); + if (zfcp_sg_setup_table(gpn_ft->sg_resp, buf_num)) { + zfcp_free_sg_env(gpn_ft, buf_num); gpn_ft = NULL; } out: @@ -485,7 +482,8 @@ out: static int zfcp_scan_issue_gpn_ft(struct zfcp_gpn_ft *gpn_ft, - struct zfcp_adapter *adapter) + struct zfcp_adapter *adapter, + int max_bytes) { struct zfcp_send_ct *ct = &gpn_ft->ct; struct ct_iu_gpn_ft_req *req = sg_virt(&gpn_ft->sg_req); @@ -498,8 +496,7 @@ static int zfcp_scan_issue_gpn_ft(struct zfcp_gpn_ft *gpn_ft, req->header.gs_subtype = ZFCP_CT_NAME_SERVER; req->header.options = ZFCP_CT_SYNCHRONOUS; req->header.cmd_rsp_code = ZFCP_CT_GPN_FT; - req->header.max_res_size = (sizeof(struct gpn_ft_resp_acc) * - (ZFCP_GPN_FT_MAX_ENTRIES - 1)) >> 2; + req->header.max_res_size = max_bytes / 4; req->flags = 0; req->domain_id_scope = 0; req->area_id_scope = 0; @@ -512,8 +509,6 @@ static int zfcp_scan_issue_gpn_ft(struct zfcp_gpn_ft *gpn_ft, ct->timeout = 10; ct->req = &gpn_ft->sg_req; ct->resp = gpn_ft->sg_resp; - ct->req_count = 1; - ct->resp_count = ZFCP_GPN_FT_BUFFERS; init_completion(&compl_rec.done); compl_rec.handler = NULL; @@ -540,7 +535,7 @@ static void zfcp_validate_port(struct zfcp_port *port) zfcp_port_dequeue(port); } -static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft) +static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft, int max_entries) { struct zfcp_send_ct *ct = &gpn_ft->ct; struct scatterlist *sg = gpn_ft->sg_resp; @@ -560,13 +555,17 @@ static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft) return -EIO; } - if (hdr->max_res_size) + if (hdr->max_res_size) { + dev_warn(&adapter->ccw_device->dev, + "The name server reported %d words residual data\n", + hdr->max_res_size); return -E2BIG; + } down(&zfcp_data.config_sema); /* first entry is the header */ - for (x = 1; x < ZFCP_GPN_FT_MAX_ENTRIES && !last; x++) { + for (x = 1; x < max_entries && !last; x++) { if (x % (ZFCP_GPN_FT_ENTRIES + 1)) acc++; else @@ -589,7 +588,6 @@ static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft) } port = zfcp_port_enqueue(adapter, acc->wwpn, - ZFCP_STATUS_PORT_DID_DID | ZFCP_STATUS_COMMON_NOESC, d_id); if (IS_ERR(port)) ret = PTR_ERR(port); @@ -612,6 +610,12 @@ int zfcp_scan_ports(struct zfcp_adapter *adapter) { int ret, i; struct zfcp_gpn_ft *gpn_ft; + int chain, max_entries, buf_num, max_bytes; + + chain = adapter->adapter_features & FSF_FEATURE_ELS_CT_CHAINED_SBALS; + buf_num = chain ? ZFCP_GPN_FT_BUFFERS : 1; + max_entries = chain ? ZFCP_GPN_FT_MAX_ENTRIES : ZFCP_GPN_FT_ENTRIES; + max_bytes = chain ? ZFCP_GPN_FT_MAX_SIZE : ZFCP_CT_SIZE_ONE_PAGE; if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT) return 0; @@ -620,23 +624,23 @@ int zfcp_scan_ports(struct zfcp_adapter *adapter) if (ret) return ret; - gpn_ft = zfcp_alloc_sg_env(); + gpn_ft = zfcp_alloc_sg_env(buf_num); if (!gpn_ft) { ret = -ENOMEM; goto out; } for (i = 0; i < 3; i++) { - ret = zfcp_scan_issue_gpn_ft(gpn_ft, adapter); + ret = zfcp_scan_issue_gpn_ft(gpn_ft, adapter, max_bytes); if (!ret) { - ret = zfcp_scan_eval_gpn_ft(gpn_ft); + ret = zfcp_scan_eval_gpn_ft(gpn_ft, max_entries); if (ret == -EAGAIN) ssleep(1); else break; } } - zfcp_free_sg_env(gpn_ft); + zfcp_free_sg_env(gpn_ft, buf_num); out: zfcp_wka_port_put(&adapter->nsp); return ret; diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 9c72e08..e6416f8 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -644,38 +644,38 @@ static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) } } -static int zfcp_fsf_sbal_check(struct zfcp_adapter *adapter) +static int zfcp_fsf_sbal_available(struct zfcp_adapter *adapter) { - struct zfcp_qdio_queue *req_q = &adapter->req_q; - - spin_lock_bh(&adapter->req_q_lock); - if (atomic_read(&req_q->count)) + if (atomic_read(&adapter->req_q.count) > 0) return 1; - spin_unlock_bh(&adapter->req_q_lock); + atomic_inc(&adapter->qdio_outb_full); return 0; } -static int zfcp_fsf_sbal_available(struct zfcp_adapter *adapter) -{ - unsigned int count = atomic_read(&adapter->req_q.count); - if (!count) - atomic_inc(&adapter->qdio_outb_full); - return count > 0; -} - static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter) + __releases(&adapter->req_q_lock) + __acquires(&adapter->req_q_lock) { + struct zfcp_qdio_queue *req_q = &adapter->req_q; long ret; + if (atomic_read(&req_q->count) <= -REQUEST_LIST_SIZE) + return -EIO; + if (atomic_read(&req_q->count) > 0) + return 0; + + atomic_dec(&req_q->count); spin_unlock_bh(&adapter->req_q_lock); ret = wait_event_interruptible_timeout(adapter->request_wq, - zfcp_fsf_sbal_check(adapter), 5 * HZ); + atomic_read(&req_q->count) >= 0, + 5 * HZ); + spin_lock_bh(&adapter->req_q_lock); + atomic_inc(&req_q->count); + if (ret > 0) return 0; if (!ret) atomic_inc(&adapter->qdio_outb_full); - - spin_lock_bh(&adapter->req_q_lock); return -EIO; } @@ -1013,12 +1013,29 @@ skip_fsfstatus: send_ct->handler(send_ct->handler_data); } -static int zfcp_fsf_setup_sbals(struct zfcp_fsf_req *req, - struct scatterlist *sg_req, - struct scatterlist *sg_resp, int max_sbals) +static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, + struct scatterlist *sg_req, + struct scatterlist *sg_resp, + int max_sbals) { + struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(req); + u32 feat = req->adapter->adapter_features; int bytes; + if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { + if (sg_req->length > PAGE_SIZE || sg_resp->length > PAGE_SIZE || + !sg_is_last(sg_req) || !sg_is_last(sg_resp)) + return -EOPNOTSUPP; + + sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ; + sbale[2].addr = sg_virt(sg_req); + sbale[2].length = sg_req->length; + sbale[3].addr = sg_virt(sg_resp); + sbale[3].length = sg_resp->length; + sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY; + return 0; + } + bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ, sg_req, max_sbals); if (bytes <= 0) @@ -1060,8 +1077,8 @@ int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool, goto out; } - ret = zfcp_fsf_setup_sbals(req, ct->req, ct->resp, - FSF_MAX_SBALS_PER_REQ); + ret = zfcp_fsf_setup_ct_els_sbals(req, ct->req, ct->resp, + FSF_MAX_SBALS_PER_REQ); if (ret) goto failed_send; @@ -1171,7 +1188,7 @@ int zfcp_fsf_send_els(struct zfcp_send_els *els) goto out; } - ret = zfcp_fsf_setup_sbals(req, els->req, els->resp, 2); + ret = zfcp_fsf_setup_ct_els_sbals(req, els->req, els->resp, 2); if (ret) goto failed_send; @@ -1406,13 +1423,7 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) switch (header->fsf_status_qual.word[0]) { case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: - req->status |= ZFCP_STATUS_FSFREQ_ERROR; - break; case FSF_SQ_NO_RETRY_POSSIBLE: - dev_warn(&req->adapter->ccw_device->dev, - "Remote port 0x%016Lx could not be opened\n", - (unsigned long long)port->wwpn); - zfcp_erp_port_failed(port, 32, req); req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; } @@ -1440,10 +1451,10 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) * Alternately, an ADISC/PDISC ELS should suffice, as well. */ plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els; - if (req->qtcb->bottom.support.els1_length >= sizeof(*plogi)) { + if (req->qtcb->bottom.support.els1_length >= + FSF_PLOGI_MIN_LEN) { if (plogi->serv_param.wwpn != port->wwpn) - atomic_clear_mask(ZFCP_STATUS_PORT_DID_DID, - &port->status); + port->d_id = 0; else { port->wwnn = plogi->serv_param.wwnn; zfcp_fc_plogi_evaluate(port, plogi); @@ -1907,7 +1918,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) dev_err(&adapter->ccw_device->dev, "Shared read-write access not " "supported (unit 0x%016Lx, port " - "0x%016Lx\n)", + "0x%016Lx)\n", (unsigned long long)unit->fcp_lun, (unsigned long long)unit->port->wwpn); zfcp_erp_unit_failed(unit, 36, req); diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h index fa2a317..8bb2002 100644 --- a/drivers/s390/scsi/zfcp_fsf.h +++ b/drivers/s390/scsi/zfcp_fsf.h @@ -164,6 +164,7 @@ #define FSF_FEATURE_LUN_SHARING 0x00000004 #define FSF_FEATURE_NOTIFICATION_LOST 0x00000008 #define FSF_FEATURE_HBAAPI_MANAGEMENT 0x00000010 +#define FSF_FEATURE_ELS_CT_CHAINED_SBALS 0x00000020 #define FSF_FEATURE_UPDATE_ALERT 0x00000100 #define FSF_FEATURE_MEASUREMENT_DATA 0x00000200 @@ -322,6 +323,7 @@ struct fsf_nport_serv_param { u8 vendor_version_level[16]; } __attribute__ ((packed)); +#define FSF_PLOGI_MIN_LEN 112 struct fsf_plogi { u32 code; struct fsf_nport_serv_param serv_param; diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index d3b55fb6..33e0a20 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -112,7 +112,7 @@ static void zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, * corruption and must stop the machine immediatly. */ panic("error: unknown request id (%lx) on adapter %s.\n", - req_id, zfcp_get_busid_by_adapter(adapter)); + req_id, dev_name(&adapter->ccw_device->dev)); zfcp_reqlist_remove(adapter, fsf_req); spin_unlock_irqrestore(&adapter->req_list_lock, flags); @@ -392,7 +392,7 @@ int zfcp_qdio_allocate(struct zfcp_adapter *adapter) init_data->cdev = adapter->ccw_device; init_data->q_format = QDIO_ZFCP_QFMT; - memcpy(init_data->adapter_name, zfcp_get_busid_by_adapter(adapter), 8); + memcpy(init_data->adapter_name, dev_name(&adapter->ccw_device->dev), 8); ASCEBC(init_data->adapter_name, 8); init_data->qib_param_field_format = 0; init_data->qib_param_field = NULL; diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 403ecad..152d4aa 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -352,6 +352,8 @@ config ISCSI_TCP http://open-iscsi.org +source "drivers/scsi/cxgb3i/Kconfig" + config SGIWD93_SCSI tristate "SGI WD93C93 SCSI Driver" depends on SGI_HAS_WD93 && SCSI @@ -603,6 +605,19 @@ config SCSI_FLASHPOINT substantial, so users of MultiMaster Host Adapters may not wish to include it. +config LIBFC + tristate "LibFC module" + select SCSI_FC_ATTRS + ---help--- + Fibre Channel library module + +config FCOE + tristate "FCoE module" + depends on PCI + select LIBFC + ---help--- + Fibre Channel over Ethernet module + config SCSI_DMX3191D tristate "DMX3191D SCSI support" depends on PCI && SCSI @@ -1357,6 +1372,13 @@ config SCSI_LPFC This lpfc driver supports the Emulex LightPulse Family of Fibre Channel PCI host adapters. +config SCSI_LPFC_DEBUG_FS + bool "Emulex LightPulse Fibre Channel debugfs Support" + depends on SCSI_LPFC && DEBUG_FS + help + This makes debugging infomation from the lpfc driver + available via the debugfs filesystem. + config SCSI_SIM710 tristate "Simple 53c710 SCSI support (Compaq, NCR machines)" depends on (EISA || MCA) && SCSI diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index 72fd504..1410697 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -36,7 +36,9 @@ obj-$(CONFIG_SCSI_SAS_LIBSAS) += libsas/ obj-$(CONFIG_SCSI_SRP_ATTRS) += scsi_transport_srp.o obj-$(CONFIG_SCSI_DH) += device_handler/ -obj-$(CONFIG_ISCSI_TCP) += libiscsi.o iscsi_tcp.o +obj-$(CONFIG_LIBFC) += libfc/ +obj-$(CONFIG_FCOE) += fcoe/ +obj-$(CONFIG_ISCSI_TCP) += libiscsi.o libiscsi_tcp.o iscsi_tcp.o obj-$(CONFIG_INFINIBAND_ISER) += libiscsi.o obj-$(CONFIG_SCSI_A4000T) += 53c700.o a4000t.o obj-$(CONFIG_SCSI_ZORRO7XX) += 53c700.o zorro7xx.o @@ -124,6 +126,7 @@ obj-$(CONFIG_SCSI_HPTIOP) += hptiop.o obj-$(CONFIG_SCSI_STEX) += stex.o obj-$(CONFIG_SCSI_MVSAS) += mvsas.o obj-$(CONFIG_PS3_ROM) += ps3rom.o +obj-$(CONFIG_SCSI_CXGB3_ISCSI) += libiscsi.o libiscsi_tcp.o cxgb3i/ obj-$(CONFIG_ARM) += arm/ diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index eeddbd1..f92da9f 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -30,7 +30,7 @@ * $Log: NCR5380.c,v $ * Revision 1.10 1998/9/2 Alan Cox - * (alan@redhat.com) + * (alan@lxorguk.ukuu.org.uk) * Fixed up the timer lockups reported so far. Things still suck. Looking * forward to 2.3 and per device request queues. Then it'll be possible to * SMP thread this beast and improve life no end. diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c index 84bb616..3c298c7 100644 --- a/drivers/scsi/a100u2w.c +++ b/drivers/scsi/a100u2w.c @@ -54,7 +54,7 @@ * 9/28/04 Christoph Hellwig <hch@lst.de> * - merge the two source files * - remove internal queueing code - * 14/06/07 Alan Cox <alan@redhat.com> + * 14/06/07 Alan Cox <alan@lxorguk.ukuu.org.uk> * - Grand cleanup and Linuxisation */ diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 8abfd06..90d1d08 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -1,6 +1,6 @@ /* * Adaptec AAC series RAID controller driver - * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> + * (c) Copyright 2001 Red Hat Inc. * * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c index a735526..0391d75 100644 --- a/drivers/scsi/aacraid/commctrl.c +++ b/drivers/scsi/aacraid/commctrl.c @@ -1,6 +1,6 @@ /* * Adaptec AAC series RAID controller driver - * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> + * (c) Copyright 2001 Red Hat Inc. * * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. @@ -90,14 +90,24 @@ static int ioctl_send_fib(struct aac_dev * dev, void __user *arg) if (size < le16_to_cpu(kfib->header.SenderSize)) size = le16_to_cpu(kfib->header.SenderSize); if (size > dev->max_fib_size) { + dma_addr_t daddr; + if (size > 2048) { retval = -EINVAL; goto cleanup; } + + kfib = pci_alloc_consistent(dev->pdev, size, &daddr); + if (!kfib) { + retval = -ENOMEM; + goto cleanup; + } + /* Highjack the hw_fib */ hw_fib = fibptr->hw_fib_va; hw_fib_pa = fibptr->hw_fib_pa; - fibptr->hw_fib_va = kfib = pci_alloc_consistent(dev->pdev, size, &fibptr->hw_fib_pa); + fibptr->hw_fib_va = kfib; + fibptr->hw_fib_pa = daddr; memset(((char *)kfib) + dev->max_fib_size, 0, size - dev->max_fib_size); memcpy(kfib, hw_fib, dev->max_fib_size); } diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index cbac063..1631044 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -1,6 +1,6 @@ /* * Adaptec AAC series RAID controller driver - * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> + * (c) Copyright 2001 Red Hat Inc. * * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 289304a..d24c267 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1,6 +1,6 @@ /* * Adaptec AAC series RAID controller driver - * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> + * (c) Copyright 2001 Red Hat Inc. * * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c index 933f208..abc9ef5 100644 --- a/drivers/scsi/aacraid/dpcsup.c +++ b/drivers/scsi/aacraid/dpcsup.c @@ -1,6 +1,6 @@ /* * Adaptec AAC series RAID controller driver - * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> + * (c) Copyright 2001 Red Hat Inc. * * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 94acbee..36d8aab 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -1,6 +1,6 @@ /* * Adaptec AAC series RAID controller driver - * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> + * (c) Copyright 2001 Red Hat Inc. * * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. diff --git a/drivers/scsi/aacraid/rkt.c b/drivers/scsi/aacraid/rkt.c index 8cd6588..16d8db5 100644 --- a/drivers/scsi/aacraid/rkt.c +++ b/drivers/scsi/aacraid/rkt.c @@ -1,6 +1,6 @@ /* * Adaptec AAC series RAID controller driver - * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> + * (c) Copyright 2001 Red Hat Inc. * * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c index 073208b..f70d9f8 100644 --- a/drivers/scsi/aacraid/rx.c +++ b/drivers/scsi/aacraid/rx.c @@ -1,6 +1,6 @@ /* * Adaptec AAC series RAID controller driver - * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> + * (c) Copyright 2001 Red Hat Inc. * * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c index fc1a557..b6a3c5c 100644 --- a/drivers/scsi/aacraid/sa.c +++ b/drivers/scsi/aacraid/sa.c @@ -1,6 +1,6 @@ /* * Adaptec AAC series RAID controller driver - * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> + * (c) Copyright 2001 Red Hat Inc. * * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 399fe55..2f60272 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -13425,8 +13425,7 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, } boardp->asc_n_io_port = pci_resource_len(pdev, 1); - boardp->ioremap_addr = ioremap(pci_resource_start(pdev, 1), - boardp->asc_n_io_port); + boardp->ioremap_addr = pci_ioremap_bar(pdev, 1); if (!boardp->ioremap_addr) { shost_printk(KERN_ERR, shost, "ioremap(%lx, %d) " "returned NULL\n", diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c index 7c45d88..ed0e3e5 100644 --- a/drivers/scsi/aha1740.c +++ b/drivers/scsi/aha1740.c @@ -22,7 +22,7 @@ * aha1740_makecode may still need even more work * if it doesn't work for your devices, take a look. * - * Reworked for new_eh and new locking by Alan Cox <alan@redhat.com> + * Reworked for new_eh and new locking by Alan Cox <alan@lxorguk.ukuu.org.uk> * * Converted to EISA and generic DMA APIs by Marc Zyngier * <maz@wild-wind.fr.eu.org>, 4/2003. diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index f91f79c..106c04d 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -235,7 +235,7 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb) uint32_t intmask_org; int i, j; - acb->pmuA = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0)); + acb->pmuA = pci_ioremap_bar(pdev, 0); if (!acb->pmuA) { printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no); @@ -329,13 +329,11 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb) reg = (struct MessageUnit_B *)(dma_coherent + ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock)); acb->pmuB = reg; - mem_base0 = ioremap(pci_resource_start(pdev, 0), - pci_resource_len(pdev, 0)); + mem_base0 = pci_ioremap_bar(pdev, 0); if (!mem_base0) goto out; - mem_base1 = ioremap(pci_resource_start(pdev, 2), - pci_resource_len(pdev, 2)); + mem_base1 = pci_ioremap_bar(pdev, 2); if (!mem_base1) { iounmap(mem_base0); goto out; diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c index 7d31154..20ca0a6 100644 --- a/drivers/scsi/atp870u.c +++ b/drivers/scsi/atp870u.c @@ -1,8 +1,8 @@ /* * Copyright (C) 1997 Wu Ching Chen * 2.1.x update (C) 1998 Krzysztof G. Baranowski - * 2.5.x update (C) 2002 Red Hat <alan@redhat.com> - * 2.6.x update (C) 2004 Red Hat <alan@redhat.com> + * 2.5.x update (C) 2002 Red Hat + * 2.6.x update (C) 2004 Red Hat * * Marcelo Tosatti <marcelo@conectiva.com.br> : SMP fixes * diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index 88ecf94..af97254 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -190,7 +190,7 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd, result = scsi_execute_req(ch->device, cmd, direction, buffer, buflength, &sshdr, timeout * HZ, - MAX_RETRIES); + MAX_RETRIES, NULL); dprintk("result: 0x%x\n",result); if (driver_byte(result) & DRIVER_SENSE) { diff --git a/drivers/scsi/cxgb3i/Kbuild b/drivers/scsi/cxgb3i/Kbuild new file mode 100644 index 0000000..ee7d6d2 --- /dev/null +++ b/drivers/scsi/cxgb3i/Kbuild @@ -0,0 +1,4 @@ +EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/cxgb3 + +cxgb3i-y := cxgb3i_init.o cxgb3i_iscsi.o cxgb3i_pdu.o cxgb3i_offload.o +obj-$(CONFIG_SCSI_CXGB3_ISCSI) += cxgb3i_ddp.o cxgb3i.o diff --git a/drivers/scsi/cxgb3i/Kconfig b/drivers/scsi/cxgb3i/Kconfig new file mode 100644 index 0000000..bfdcaf5 --- /dev/null +++ b/drivers/scsi/cxgb3i/Kconfig @@ -0,0 +1,7 @@ +config SCSI_CXGB3_ISCSI + tristate "Chelsio S3xx iSCSI support" + depends on CHELSIO_T3_DEPENDS + select CHELSIO_T3 + select SCSI_ISCSI_ATTRS + ---help--- + This driver supports iSCSI offload for the Chelsio S3 series devices. diff --git a/drivers/scsi/cxgb3i/cxgb3i.h b/drivers/scsi/cxgb3i/cxgb3i.h new file mode 100644 index 0000000..fde6e4c --- /dev/null +++ b/drivers/scsi/cxgb3i/cxgb3i.h @@ -0,0 +1,139 @@ +/* + * cxgb3i.h: Chelsio S3xx iSCSI driver. + * + * Copyright (c) 2008 Chelsio Communications, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + * + * Written by: Karen Xie (kxie@chelsio.com) + */ + +#ifndef __CXGB3I_H__ +#define __CXGB3I_H__ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/errno.h> +#include <linux/types.h> +#include <linux/list.h> +#include <linux/netdevice.h> +#include <linux/scatterlist.h> +#include <scsi/libiscsi_tcp.h> + +/* from cxgb3 LLD */ +#include "common.h" +#include "t3_cpl.h" +#include "t3cdev.h" +#include "cxgb3_ctl_defs.h" +#include "cxgb3_offload.h" +#include "firmware_exports.h" + +#include "cxgb3i_offload.h" +#include "cxgb3i_ddp.h" + +#define CXGB3I_SCSI_QDEPTH_DFLT 128 +#define CXGB3I_MAX_TARGET CXGB3I_MAX_CONN +#define CXGB3I_MAX_LUN 512 +#define ISCSI_PDU_NONPAYLOAD_MAX \ + (sizeof(struct iscsi_hdr) + ISCSI_MAX_AHS_SIZE + 2*ISCSI_DIGEST_SIZE) + +struct cxgb3i_adapter; +struct cxgb3i_hba; +struct cxgb3i_endpoint; + +/** + * struct cxgb3i_hba - cxgb3i iscsi structure (per port) + * + * @snic: cxgb3i adapter containing this port + * @ndev: pointer to netdev structure + * @shost: pointer to scsi host structure + */ +struct cxgb3i_hba { + struct cxgb3i_adapter *snic; + struct net_device *ndev; + struct Scsi_Host *shost; +}; + +/** + * struct cxgb3i_adapter - cxgb3i adapter structure (per pci) + * + * @listhead: list head to link elements + * @lock: lock for this structure + * @tdev: pointer to t3cdev used by cxgb3 driver + * @pdev: pointer to pci dev + * @hba_cnt: # of hbas (the same as # of ports) + * @hba: all the hbas on this adapter + * @tx_max_size: max. tx packet size supported + * @rx_max_size: max. rx packet size supported + * @tag_format: ddp tag format settings + */ +struct cxgb3i_adapter { + struct list_head list_head; + spinlock_t lock; + struct t3cdev *tdev; + struct pci_dev *pdev; + unsigned char hba_cnt; + struct cxgb3i_hba *hba[MAX_NPORTS]; + + unsigned int tx_max_size; + unsigned int rx_max_size; + + struct cxgb3i_tag_format tag_format; +}; + +/** + * struct cxgb3i_conn - cxgb3i iscsi connection + * + * @listhead: list head to link elements + * @cep: pointer to iscsi_endpoint structure + * @conn: pointer to iscsi_conn structure + * @hba: pointer to the hba this conn. is going through + * @task_idx_bits: # of bits needed for session->cmds_max + */ +struct cxgb3i_conn { + struct list_head list_head; + struct cxgb3i_endpoint *cep; + struct iscsi_conn *conn; + struct cxgb3i_hba *hba; + unsigned int task_idx_bits; +}; + +/** + * struct cxgb3i_endpoint - iscsi tcp endpoint + * + * @c3cn: the h/w tcp connection representation + * @hba: pointer to the hba this conn. is going through + * @cconn: pointer to the associated cxgb3i iscsi connection + */ +struct cxgb3i_endpoint { + struct s3_conn *c3cn; + struct cxgb3i_hba *hba; + struct cxgb3i_conn *cconn; +}; + +int cxgb3i_iscsi_init(void); +void cxgb3i_iscsi_cleanup(void); + +struct cxgb3i_adapter *cxgb3i_adapter_add(struct t3cdev *); +void cxgb3i_adapter_remove(struct t3cdev *); +int cxgb3i_adapter_ulp_init(struct cxgb3i_adapter *); +void cxgb3i_adapter_ulp_cleanup(struct cxgb3i_adapter *); + +struct cxgb3i_hba *cxgb3i_hba_find_by_netdev(struct net_device *); +struct cxgb3i_hba *cxgb3i_hba_host_add(struct cxgb3i_adapter *, + struct net_device *); +void cxgb3i_hba_host_remove(struct cxgb3i_hba *); + +int cxgb3i_pdu_init(void); +void cxgb3i_pdu_cleanup(void); +void cxgb3i_conn_cleanup_task(struct iscsi_task *); +int cxgb3i_conn_alloc_pdu(struct iscsi_task *, u8); +int cxgb3i_conn_init_pdu(struct iscsi_task *, unsigned int, unsigned int); +int cxgb3i_conn_xmit_pdu(struct iscsi_task *); + +void cxgb3i_release_itt(struct iscsi_task *task, itt_t hdr_itt); +int cxgb3i_reserve_itt(struct iscsi_task *task, itt_t *hdr_itt); + +#endif diff --git a/drivers/scsi/cxgb3i/cxgb3i_ddp.c b/drivers/scsi/cxgb3i/cxgb3i_ddp.c new file mode 100644 index 0000000..1a41f04 --- /dev/null +++ b/drivers/scsi/cxgb3i/cxgb3i_ddp.c @@ -0,0 +1,770 @@ +/* + * cxgb3i_ddp.c: Chelsio S3xx iSCSI DDP Manager. + * + * Copyright (c) 2008 Chelsio Communications, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + * + * Written by: Karen Xie (kxie@chelsio.com) + */ + +#include <linux/skbuff.h> + +/* from cxgb3 LLD */ +#include "common.h" +#include "t3_cpl.h" +#include "t3cdev.h" +#include "cxgb3_ctl_defs.h" +#include "cxgb3_offload.h" +#include "firmware_exports.h" + +#include "cxgb3i_ddp.h" + +#define DRV_MODULE_NAME "cxgb3i_ddp" +#define DRV_MODULE_VERSION "1.0.0" +#define DRV_MODULE_RELDATE "Dec. 1, 2008" + +static char version[] = + "Chelsio S3xx iSCSI DDP " DRV_MODULE_NAME + " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; + +MODULE_AUTHOR("Karen Xie <kxie@chelsio.com>"); +MODULE_DESCRIPTION("cxgb3i ddp pagepod manager"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_MODULE_VERSION); + +#define ddp_log_error(fmt...) printk(KERN_ERR "cxgb3i_ddp: ERR! " fmt) +#define ddp_log_warn(fmt...) printk(KERN_WARNING "cxgb3i_ddp: WARN! " fmt) +#define ddp_log_info(fmt...) printk(KERN_INFO "cxgb3i_ddp: " fmt) + +#ifdef __DEBUG_CXGB3I_DDP__ +#define ddp_log_debug(fmt, args...) \ + printk(KERN_INFO "cxgb3i_ddp: %s - " fmt, __func__ , ## args) +#else +#define ddp_log_debug(fmt...) +#endif + +/* + * iSCSI Direct Data Placement + * + * T3 h/w can directly place the iSCSI Data-In or Data-Out PDU's payload into + * pre-posted final destination host-memory buffers based on the Initiator + * Task Tag (ITT) in Data-In or Target Task Tag (TTT) in Data-Out PDUs. + * + * The host memory address is programmed into h/w in the format of pagepod + * entries. + * The location of the pagepod entry is encoded into ddp tag which is used or + * is the base for ITT/TTT. + */ + +#define DDP_PGIDX_MAX 4 +#define DDP_THRESHOLD 2048 +static unsigned char ddp_page_order[DDP_PGIDX_MAX] = {0, 1, 2, 4}; +static unsigned char ddp_page_shift[DDP_PGIDX_MAX] = {12, 13, 14, 16}; +static unsigned char page_idx = DDP_PGIDX_MAX; + +static LIST_HEAD(cxgb3i_ddp_list); +static DEFINE_RWLOCK(cxgb3i_ddp_rwlock); + +/* + * functions to program the pagepod in h/w + */ +static inline void ulp_mem_io_set_hdr(struct sk_buff *skb, unsigned int addr) +{ + struct ulp_mem_io *req = (struct ulp_mem_io *)skb->head; + + req->wr.wr_lo = 0; + req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_BYPASS)); + req->cmd_lock_addr = htonl(V_ULP_MEMIO_ADDR(addr >> 5) | + V_ULPTX_CMD(ULP_MEM_WRITE)); + req->len = htonl(V_ULP_MEMIO_DATA_LEN(PPOD_SIZE >> 5) | + V_ULPTX_NFLITS((PPOD_SIZE >> 3) + 1)); +} + +static int set_ddp_map(struct cxgb3i_ddp_info *ddp, struct pagepod_hdr *hdr, + unsigned int idx, unsigned int npods, + struct cxgb3i_gather_list *gl) +{ + unsigned int pm_addr = (idx << PPOD_SIZE_SHIFT) + ddp->llimit; + int i; + + for (i = 0; i < npods; i++, idx++, pm_addr += PPOD_SIZE) { + struct sk_buff *skb = ddp->gl_skb[idx]; + struct pagepod *ppod; + int j, pidx; + + /* hold on to the skb until we clear the ddp mapping */ + skb_get(skb); + + ulp_mem_io_set_hdr(skb, pm_addr); + ppod = (struct pagepod *) + (skb->head + sizeof(struct ulp_mem_io)); + memcpy(&(ppod->hdr), hdr, sizeof(struct pagepod)); + for (pidx = 4 * i, j = 0; j < 5; ++j, ++pidx) + ppod->addr[j] = pidx < gl->nelem ? + cpu_to_be64(gl->phys_addr[pidx]) : 0UL; + + skb->priority = CPL_PRIORITY_CONTROL; + cxgb3_ofld_send(ddp->tdev, skb); + } + return 0; +} + +static int clear_ddp_map(struct cxgb3i_ddp_info *ddp, unsigned int idx, + unsigned int npods) +{ + unsigned int pm_addr = (idx << PPOD_SIZE_SHIFT) + ddp->llimit; + int i; + + for (i = 0; i < npods; i++, idx++, pm_addr += PPOD_SIZE) { + struct sk_buff *skb = ddp->gl_skb[idx]; + + ddp->gl_skb[idx] = NULL; + memset((skb->head + sizeof(struct ulp_mem_io)), 0, PPOD_SIZE); + ulp_mem_io_set_hdr(skb, pm_addr); + skb->priority = CPL_PRIORITY_CONTROL; + cxgb3_ofld_send(ddp->tdev, skb); + } + return 0; +} + +static inline int ddp_find_unused_entries(struct cxgb3i_ddp_info *ddp, + int start, int max, int count, + struct cxgb3i_gather_list *gl) +{ + unsigned int i, j; + + spin_lock(&ddp->map_lock); + for (i = start; i <= max;) { + for (j = 0; j < count; j++) { + if (ddp->gl_map[i + j]) + break; + } + if (j == count) { + for (j = 0; j < count; j++) + ddp->gl_map[i + j] = gl; + spin_unlock(&ddp->map_lock); + return i; + } + i += j + 1; + } + spin_unlock(&ddp->map_lock); + return -EBUSY; +} + +static inline void ddp_unmark_entries(struct cxgb3i_ddp_info *ddp, + int start, int count) +{ + spin_lock(&ddp->map_lock); + memset(&ddp->gl_map[start], 0, + count * sizeof(struct cxgb3i_gather_list *)); + spin_unlock(&ddp->map_lock); +} + +static inline void ddp_free_gl_skb(struct cxgb3i_ddp_info *ddp, + int idx, int count) +{ + int i; + + for (i = 0; i < count; i++, idx++) + if (ddp->gl_skb[idx]) { + kfree_skb(ddp->gl_skb[idx]); + ddp->gl_skb[idx] = NULL; + } +} + +static inline int ddp_alloc_gl_skb(struct cxgb3i_ddp_info *ddp, int idx, + int count, gfp_t gfp) +{ + int i; + + for (i = 0; i < count; i++) { + struct sk_buff *skb = alloc_skb(sizeof(struct ulp_mem_io) + + PPOD_SIZE, gfp); + if (skb) { + ddp->gl_skb[idx + i] = skb; + skb_put(skb, sizeof(struct ulp_mem_io) + PPOD_SIZE); + } else { + ddp_free_gl_skb(ddp, idx, i); + return -ENOMEM; + } + } + return 0; +} + +/** + * cxgb3i_ddp_find_page_index - return ddp page index for a given page size. + * @pgsz: page size + * return the ddp page index, if no match is found return DDP_PGIDX_MAX. + */ +int cxgb3i_ddp_find_page_index(unsigned long pgsz) +{ + int i; + + for (i = 0; i < DDP_PGIDX_MAX; i++) { + if (pgsz == (1UL << ddp_page_shift[i])) + return i; + } + ddp_log_debug("ddp page size 0x%lx not supported.\n", pgsz); + return DDP_PGIDX_MAX; +} +EXPORT_SYMBOL_GPL(cxgb3i_ddp_find_page_index); + +static inline void ddp_gl_unmap(struct pci_dev *pdev, + struct cxgb3i_gather_list *gl) +{ + int i; + + for (i = 0; i < gl->nelem; i++) + pci_unmap_page(pdev, gl->phys_addr[i], PAGE_SIZE, + PCI_DMA_FROMDEVICE); +} + +static inline int ddp_gl_map(struct pci_dev *pdev, + struct cxgb3i_gather_list *gl) +{ + int i; + + for (i = 0; i < gl->nelem; i++) { + gl->phys_addr[i] = pci_map_page(pdev, gl->pages[i], 0, + PAGE_SIZE, + PCI_DMA_FROMDEVICE); + if (unlikely(pci_dma_mapping_error(pdev, gl->phys_addr[i]))) + goto unmap; + } + + return i; + +unmap: + if (i) { + unsigned int nelem = gl->nelem; + + gl->nelem = i; + ddp_gl_unmap(pdev, gl); + gl->nelem = nelem; + } + return -ENOMEM; +} + +/** + * cxgb3i_ddp_make_gl - build ddp page buffer list + * @xferlen: total buffer length + * @sgl: page buffer scatter-gather list + * @sgcnt: # of page buffers + * @pdev: pci_dev, used for pci map + * @gfp: allocation mode + * + * construct a ddp page buffer list from the scsi scattergather list. + * coalesce buffers as much as possible, and obtain dma addresses for + * each page. + * + * Return the cxgb3i_gather_list constructed from the page buffers if the + * memory can be used for ddp. Return NULL otherwise. + */ +struct cxgb3i_gather_list *cxgb3i_ddp_make_gl(unsigned int xferlen, + struct scatterlist *sgl, + unsigned int sgcnt, + struct pci_dev *pdev, + gfp_t gfp) +{ + struct cxgb3i_gather_list *gl; + struct scatterlist *sg = sgl; + struct page *sgpage = sg_page(sg); + unsigned int sglen = sg->length; + unsigned int sgoffset = sg->offset; + unsigned int npages = (xferlen + sgoffset + PAGE_SIZE - 1) >> + PAGE_SHIFT; + int i = 1, j = 0; + + if (xferlen < DDP_THRESHOLD) { + ddp_log_debug("xfer %u < threshold %u, no ddp.\n", + xferlen, DDP_THRESHOLD); + return NULL; + } + + gl = kzalloc(sizeof(struct cxgb3i_gather_list) + + npages * (sizeof(dma_addr_t) + sizeof(struct page *)), + gfp); + if (!gl) + return NULL; + + gl->pages = (struct page **)&gl->phys_addr[npages]; + gl->length = xferlen; + gl->offset = sgoffset; + gl->pages[0] = sgpage; + + sg = sg_next(sg); + while (sg) { + struct page *page = sg_page(sg); + + if (sgpage == page && sg->offset == sgoffset + sglen) + sglen += sg->length; + else { + /* make sure the sgl is fit for ddp: + * each has the same page size, and + * all of the middle pages are used completely + */ + if ((j && sgoffset) || + ((i != sgcnt - 1) && + ((sglen + sgoffset) & ~PAGE_MASK))) + goto error_out; + + j++; + if (j == gl->nelem || sg->offset) + goto error_out; + gl->pages[j] = page; + sglen = sg->length; + sgoffset = sg->offset; + sgpage = page; + } + i++; + sg = sg_next(sg); + } + gl->nelem = ++j; + + if (ddp_gl_map(pdev, gl) < 0) + goto error_out; + + return gl; + +error_out: + kfree(gl); + return NULL; +} +EXPORT_SYMBOL_GPL(cxgb3i_ddp_make_gl); + +/** + * cxgb3i_ddp_release_gl - release a page buffer list + * @gl: a ddp page buffer list + * @pdev: pci_dev used for pci_unmap + * free a ddp page buffer list resulted from cxgb3i_ddp_make_gl(). + */ +void cxgb3i_ddp_release_gl(struct cxgb3i_gather_list *gl, + struct pci_dev *pdev) +{ + ddp_gl_unmap(pdev, gl); + kfree(gl); +} +EXPORT_SYMBOL_GPL(cxgb3i_ddp_release_gl); + +/** + * cxgb3i_ddp_tag_reserve - set up ddp for a data transfer + * @tdev: t3cdev adapter + * @tid: connection id + * @tformat: tag format + * @tagp: the s/w tag, if ddp setup is successful, it will be updated with + * ddp/hw tag + * @gl: the page momory list + * @gfp: allocation mode + * + * ddp setup for a given page buffer list and construct the ddp tag. + * return 0 if success, < 0 otherwise. + */ +int cxgb3i_ddp_tag_reserve(struct t3cdev *tdev, unsigned int tid, + struct cxgb3i_tag_format *tformat, u32 *tagp, + struct cxgb3i_gather_list *gl, gfp_t gfp) +{ + struct cxgb3i_ddp_info *ddp = tdev->ulp_iscsi; + struct pagepod_hdr hdr; + unsigned int npods; + int idx = -1, idx_max; + int err = -ENOMEM; + u32 sw_tag = *tagp; + u32 tag; + + if (page_idx >= DDP_PGIDX_MAX || !ddp || !gl || !gl->nelem || + gl->length < DDP_THRESHOLD) { + ddp_log_debug("pgidx %u, xfer %u/%u, NO ddp.\n", + page_idx, gl->length, DDP_THRESHOLD); + return -EINVAL; + } + + npods = (gl->nelem + PPOD_PAGES_MAX - 1) >> PPOD_PAGES_SHIFT; + idx_max = ddp->nppods - npods + 1; + + if (ddp->idx_last == ddp->nppods) + idx = ddp_find_unused_entries(ddp, 0, idx_max, npods, gl); + else { + idx = ddp_find_unused_entries(ddp, ddp->idx_last + 1, + idx_max, npods, gl); + if (idx < 0 && ddp->idx_last >= npods) + idx = ddp_find_unused_entries(ddp, 0, + ddp->idx_last - npods + 1, + npods, gl); + } + if (idx < 0) { + ddp_log_debug("xferlen %u, gl %u, npods %u NO DDP.\n", + gl->length, gl->nelem, npods); + return idx; + } + + err = ddp_alloc_gl_skb(ddp, idx, npods, gfp); + if (err < 0) + goto unmark_entries; + + tag = cxgb3i_ddp_tag_base(tformat, sw_tag); + tag |= idx << PPOD_IDX_SHIFT; + + hdr.rsvd = 0; + hdr.vld_tid = htonl(F_PPOD_VALID | V_PPOD_TID(tid)); + hdr.pgsz_tag_clr = htonl(tag & ddp->rsvd_tag_mask); + hdr.maxoffset = htonl(gl->length); + hdr.pgoffset = htonl(gl->offset); + + err = set_ddp_map(ddp, &hdr, idx, npods, gl); + if (err < 0) + goto free_gl_skb; + + ddp->idx_last = idx; + ddp_log_debug("xfer %u, gl %u,%u, tid 0x%x, 0x%x -> 0x%x(%u,%u).\n", + gl->length, gl->nelem, gl->offset, tid, sw_tag, tag, + idx, npods); + *tagp = tag; + return 0; + +free_gl_skb: + ddp_free_gl_skb(ddp, idx, npods); +unmark_entries: + ddp_unmark_entries(ddp, idx, npods); + return err; +} +EXPORT_SYMBOL_GPL(cxgb3i_ddp_tag_reserve); + +/** + * cxgb3i_ddp_tag_release - release a ddp tag + * @tdev: t3cdev adapter + * @tag: ddp tag + * ddp cleanup for a given ddp tag and release all the resources held + */ +void cxgb3i_ddp_tag_release(struct t3cdev *tdev, u32 tag) +{ + struct cxgb3i_ddp_info *ddp = tdev->ulp_iscsi; + u32 idx; + + if (!ddp) { + ddp_log_error("release ddp tag 0x%x, ddp NULL.\n", tag); + return; + } + + idx = (tag >> PPOD_IDX_SHIFT) & ddp->idx_mask; + if (idx < ddp->nppods) { + struct cxgb3i_gather_list *gl = ddp->gl_map[idx]; + unsigned int npods; + + if (!gl) { + ddp_log_error("release ddp 0x%x, idx 0x%x, gl NULL.\n", + tag, idx); + return; + } + npods = (gl->nelem + PPOD_PAGES_MAX - 1) >> PPOD_PAGES_SHIFT; + ddp_log_debug("ddp tag 0x%x, release idx 0x%x, npods %u.\n", + tag, idx, npods); + clear_ddp_map(ddp, idx, npods); + ddp_unmark_entries(ddp, idx, npods); + cxgb3i_ddp_release_gl(gl, ddp->pdev); + } else + ddp_log_error("ddp tag 0x%x, idx 0x%x > max 0x%x.\n", + tag, idx, ddp->nppods); +} +EXPORT_SYMBOL_GPL(cxgb3i_ddp_tag_release); + +static int setup_conn_pgidx(struct t3cdev *tdev, unsigned int tid, int pg_idx, + int reply) +{ + struct sk_buff *skb = alloc_skb(sizeof(struct cpl_set_tcb_field), + GFP_KERNEL); + struct cpl_set_tcb_field *req; + u64 val = pg_idx < DDP_PGIDX_MAX ? pg_idx : 0; + + if (!skb) + return -ENOMEM; + + /* set up ulp submode and page size */ + req = (struct cpl_set_tcb_field *)skb_put(skb, sizeof(*req)); + req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD)); + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid)); + req->reply = V_NO_REPLY(reply ? 0 : 1); + req->cpu_idx = 0; + req->word = htons(31); + req->mask = cpu_to_be64(0xF0000000); + req->val = cpu_to_be64(val << 28); + skb->priority = CPL_PRIORITY_CONTROL; + + cxgb3_ofld_send(tdev, skb); + return 0; +} + +/** + * cxgb3i_setup_conn_host_pagesize - setup the conn.'s ddp page size + * @tdev: t3cdev adapter + * @tid: connection id + * @reply: request reply from h/w + * set up the ddp page size based on the host PAGE_SIZE for a connection + * identified by tid + */ +int cxgb3i_setup_conn_host_pagesize(struct t3cdev *tdev, unsigned int tid, + int reply) +{ + return setup_conn_pgidx(tdev, tid, page_idx, reply); +} +EXPORT_SYMBOL_GPL(cxgb3i_setup_conn_host_pagesize); + +/** + * cxgb3i_setup_conn_pagesize - setup the conn.'s ddp page size + * @tdev: t3cdev adapter + * @tid: connection id + * @reply: request reply from h/w + * @pgsz: ddp page size + * set up the ddp page size for a connection identified by tid + */ +int cxgb3i_setup_conn_pagesize(struct t3cdev *tdev, unsigned int tid, + int reply, unsigned long pgsz) +{ + int pgidx = cxgb3i_ddp_find_page_index(pgsz); + + return setup_conn_pgidx(tdev, tid, pgidx, reply); +} +EXPORT_SYMBOL_GPL(cxgb3i_setup_conn_pagesize); + +/** + * cxgb3i_setup_conn_digest - setup conn. digest setting + * @tdev: t3cdev adapter + * @tid: connection id + * @hcrc: header digest enabled + * @dcrc: data digest enabled + * @reply: request reply from h/w + * set up the iscsi digest settings for a connection identified by tid + */ +int cxgb3i_setup_conn_digest(struct t3cdev *tdev, unsigned int tid, + int hcrc, int dcrc, int reply) +{ + struct sk_buff *skb = alloc_skb(sizeof(struct cpl_set_tcb_field), + GFP_KERNEL); + struct cpl_set_tcb_field *req; + u64 val = (hcrc ? 1 : 0) | (dcrc ? 2 : 0); + + if (!skb) + return -ENOMEM; + + /* set up ulp submode and page size */ + req = (struct cpl_set_tcb_field *)skb_put(skb, sizeof(*req)); + req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD)); + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid)); + req->reply = V_NO_REPLY(reply ? 0 : 1); + req->cpu_idx = 0; + req->word = htons(31); + req->mask = cpu_to_be64(0x0F000000); + req->val = cpu_to_be64(val << 24); + skb->priority = CPL_PRIORITY_CONTROL; + + cxgb3_ofld_send(tdev, skb); + return 0; +} +EXPORT_SYMBOL_GPL(cxgb3i_setup_conn_digest); + +static int ddp_init(struct t3cdev *tdev) +{ + struct cxgb3i_ddp_info *ddp; + struct ulp_iscsi_info uinfo; + unsigned int ppmax, bits; + int i, err; + static int vers_printed; + + if (!vers_printed) { + printk(KERN_INFO "%s", version); + vers_printed = 1; + } + + err = tdev->ctl(tdev, ULP_ISCSI_GET_PARAMS, &uinfo); + if (err < 0) { + ddp_log_error("%s, failed to get iscsi param err=%d.\n", + tdev->name, err); + return err; + } + + ppmax = (uinfo.ulimit - uinfo.llimit + 1) >> PPOD_SIZE_SHIFT; + bits = __ilog2_u32(ppmax) + 1; + if (bits > PPOD_IDX_MAX_SIZE) + bits = PPOD_IDX_MAX_SIZE; + ppmax = (1 << (bits - 1)) - 1; + + ddp = cxgb3i_alloc_big_mem(sizeof(struct cxgb3i_ddp_info) + + ppmax * + (sizeof(struct cxgb3i_gather_list *) + + sizeof(struct sk_buff *)), + GFP_KERNEL); + if (!ddp) { + ddp_log_warn("%s unable to alloc ddp 0x%d, ddp disabled.\n", + tdev->name, ppmax); + return 0; + } + ddp->gl_map = (struct cxgb3i_gather_list **)(ddp + 1); + ddp->gl_skb = (struct sk_buff **)(((char *)ddp->gl_map) + + ppmax * + sizeof(struct cxgb3i_gather_list *)); + spin_lock_init(&ddp->map_lock); + + ddp->tdev = tdev; + ddp->pdev = uinfo.pdev; + ddp->max_txsz = min_t(unsigned int, uinfo.max_txsz, ULP2_MAX_PKT_SIZE); + ddp->max_rxsz = min_t(unsigned int, uinfo.max_rxsz, ULP2_MAX_PKT_SIZE); + ddp->llimit = uinfo.llimit; + ddp->ulimit = uinfo.ulimit; + ddp->nppods = ppmax; + ddp->idx_last = ppmax; + ddp->idx_bits = bits; + ddp->idx_mask = (1 << bits) - 1; + ddp->rsvd_tag_mask = (1 << (bits + PPOD_IDX_SHIFT)) - 1; + + uinfo.tagmask = ddp->idx_mask << PPOD_IDX_SHIFT; + for (i = 0; i < DDP_PGIDX_MAX; i++) + uinfo.pgsz_factor[i] = ddp_page_order[i]; + uinfo.ulimit = uinfo.llimit + (ppmax << PPOD_SIZE_SHIFT); + + err = tdev->ctl(tdev, ULP_ISCSI_SET_PARAMS, &uinfo); + if (err < 0) { + ddp_log_warn("%s unable to set iscsi param err=%d, " + "ddp disabled.\n", tdev->name, err); + goto free_ddp_map; + } + + tdev->ulp_iscsi = ddp; + + /* add to the list */ + write_lock(&cxgb3i_ddp_rwlock); + list_add_tail(&ddp->list, &cxgb3i_ddp_list); + write_unlock(&cxgb3i_ddp_rwlock); + + ddp_log_info("nppods %u (0x%x ~ 0x%x), bits %u, mask 0x%x,0x%x " + "pkt %u,%u.\n", + ppmax, ddp->llimit, ddp->ulimit, ddp->idx_bits, + ddp->idx_mask, ddp->rsvd_tag_mask, + ddp->max_txsz, ddp->max_rxsz); + return 0; + +free_ddp_map: + cxgb3i_free_big_mem(ddp); + return err; +} + +/** + * cxgb3i_adapter_ddp_init - initialize the adapter's ddp resource + * @tdev: t3cdev adapter + * @tformat: tag format + * @txsz: max tx pkt size, filled in by this func. + * @rxsz: max rx pkt size, filled in by this func. + * initialize the ddp pagepod manager for a given adapter if needed and + * setup the tag format for a given iscsi entity + */ +int cxgb3i_adapter_ddp_init(struct t3cdev *tdev, + struct cxgb3i_tag_format *tformat, + unsigned int *txsz, unsigned int *rxsz) +{ + struct cxgb3i_ddp_info *ddp; + unsigned char idx_bits; + + if (!tformat) + return -EINVAL; + + if (!tdev->ulp_iscsi) { + int err = ddp_init(tdev); + if (err < 0) + return err; + } + ddp = (struct cxgb3i_ddp_info *)tdev->ulp_iscsi; + + idx_bits = 32 - tformat->sw_bits; + tformat->rsvd_bits = ddp->idx_bits; + tformat->rsvd_shift = PPOD_IDX_SHIFT; + tformat->rsvd_mask = (1 << tformat->rsvd_bits) - 1; + + ddp_log_info("tag format: sw %u, rsvd %u,%u, mask 0x%x.\n", + tformat->sw_bits, tformat->rsvd_bits, + tformat->rsvd_shift, tformat->rsvd_mask); + + *txsz = ddp->max_txsz; + *rxsz = ddp->max_rxsz; + ddp_log_info("ddp max pkt size: %u, %u.\n", + ddp->max_txsz, ddp->max_rxsz); + return 0; +} +EXPORT_SYMBOL_GPL(cxgb3i_adapter_ddp_init); + +static void ddp_release(struct cxgb3i_ddp_info *ddp) +{ + int i = 0; + struct t3cdev *tdev = ddp->tdev; + + tdev->ulp_iscsi = NULL; + while (i < ddp->nppods) { + struct cxgb3i_gather_list *gl = ddp->gl_map[i]; + if (gl) { + int npods = (gl->nelem + PPOD_PAGES_MAX - 1) + >> PPOD_PAGES_SHIFT; + + kfree(gl); + ddp_free_gl_skb(ddp, i, npods); + } else + i++; + } + cxgb3i_free_big_mem(ddp); +} + +/** + * cxgb3i_adapter_ddp_cleanup - release the adapter's ddp resource + * @tdev: t3cdev adapter + * release all the resource held by the ddp pagepod manager for a given + * adapter if needed + */ +void cxgb3i_adapter_ddp_cleanup(struct t3cdev *tdev) +{ + struct cxgb3i_ddp_info *ddp; + + /* remove from the list */ + write_lock(&cxgb3i_ddp_rwlock); + list_for_each_entry(ddp, &cxgb3i_ddp_list, list) { + if (ddp->tdev == tdev) { + list_del(&ddp->list); + break; + } + } + write_unlock(&cxgb3i_ddp_rwlock); + + if (ddp) + ddp_release(ddp); +} +EXPORT_SYMBOL_GPL(cxgb3i_adapter_ddp_cleanup); + +/** + * cxgb3i_ddp_init_module - module init entry point + * initialize any driver wide global data structures + */ +static int __init cxgb3i_ddp_init_module(void) +{ + page_idx = cxgb3i_ddp_find_page_index(PAGE_SIZE); + ddp_log_info("system PAGE_SIZE %lu, ddp idx %u.\n", + PAGE_SIZE, page_idx); + return 0; +} + +/** + * cxgb3i_ddp_exit_module - module cleanup/exit entry point + * go through the ddp list and release any resource held. + */ +static void __exit cxgb3i_ddp_exit_module(void) +{ + struct cxgb3i_ddp_info *ddp; + + /* release all ddp manager if there is any */ + write_lock(&cxgb3i_ddp_rwlock); + list_for_each_entry(ddp, &cxgb3i_ddp_list, list) { + list_del(&ddp->list); + ddp_release(ddp); + } + write_unlock(&cxgb3i_ddp_rwlock); +} + +module_init(cxgb3i_ddp_init_module); +module_exit(cxgb3i_ddp_exit_module); diff --git a/drivers/scsi/cxgb3i/cxgb3i_ddp.h b/drivers/scsi/cxgb3i/cxgb3i_ddp.h new file mode 100644 index 0000000..5c7c4d9 --- /dev/null +++ b/drivers/scsi/cxgb3i/cxgb3i_ddp.h @@ -0,0 +1,306 @@ +/* + * cxgb3i_ddp.h: Chelsio S3xx iSCSI DDP Manager. + * + * Copyright (c) 2008 Chelsio Communications, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + * + * Written by: Karen Xie (kxie@chelsio.com) + */ + +#ifndef __CXGB3I_ULP2_DDP_H__ +#define __CXGB3I_ULP2_DDP_H__ + +/** + * struct cxgb3i_tag_format - cxgb3i ulp tag format for an iscsi entity + * + * @sw_bits: # of bits used by iscsi software layer + * @rsvd_bits: # of bits used by h/w + * @rsvd_shift: h/w bits shift left + * @rsvd_mask: reserved bit mask + */ +struct cxgb3i_tag_format { + unsigned char sw_bits; + unsigned char rsvd_bits; + unsigned char rsvd_shift; + unsigned char filler[1]; + u32 rsvd_mask; +}; + +/** + * struct cxgb3i_gather_list - cxgb3i direct data placement memory + * + * @tag: ddp tag + * @length: total data buffer length + * @offset: initial offset to the 1st page + * @nelem: # of pages + * @pages: page pointers + * @phys_addr: physical address + */ +struct cxgb3i_gather_list { + u32 tag; + unsigned int length; + unsigned int offset; + unsigned int nelem; + struct page **pages; + dma_addr_t phys_addr[0]; +}; + +/** + * struct cxgb3i_ddp_info - cxgb3i direct data placement for pdu payload + * + * @list: list head to link elements + * @tdev: pointer to t3cdev used by cxgb3 driver + * @max_txsz: max tx packet size for ddp + * @max_rxsz: max rx packet size for ddp + * @llimit: lower bound of the page pod memory + * @ulimit: upper bound of the page pod memory + * @nppods: # of page pod entries + * @idx_last: page pod entry last used + * @idx_bits: # of bits the pagepod index would take + * @idx_mask: pagepod index mask + * @rsvd_tag_mask: tag mask + * @map_lock: lock to synchonize access to the page pod map + * @gl_map: ddp memory gather list + * @gl_skb: skb used to program the pagepod + */ +struct cxgb3i_ddp_info { + struct list_head list; + struct t3cdev *tdev; + struct pci_dev *pdev; + unsigned int max_txsz; + unsigned int max_rxsz; + unsigned int llimit; + unsigned int ulimit; + unsigned int nppods; + unsigned int idx_last; + unsigned char idx_bits; + unsigned char filler[3]; + u32 idx_mask; + u32 rsvd_tag_mask; + spinlock_t map_lock; + struct cxgb3i_gather_list **gl_map; + struct sk_buff **gl_skb; +}; + +#define ULP2_MAX_PKT_SIZE 16224 +#define ULP2_MAX_PDU_PAYLOAD (ULP2_MAX_PKT_SIZE - ISCSI_PDU_NONPAYLOAD_MAX) +#define PPOD_PAGES_MAX 4 +#define PPOD_PAGES_SHIFT 2 /* 4 pages per pod */ + +/* + * struct pagepod_hdr, pagepod - pagepod format + */ +struct pagepod_hdr { + u32 vld_tid; + u32 pgsz_tag_clr; + u32 maxoffset; + u32 pgoffset; + u64 rsvd; +}; + +struct pagepod { + struct pagepod_hdr hdr; + u64 addr[PPOD_PAGES_MAX + 1]; +}; + +#define PPOD_SIZE sizeof(struct pagepod) /* 64 */ +#define PPOD_SIZE_SHIFT 6 + +#define PPOD_COLOR_SHIFT 0 +#define PPOD_COLOR_SIZE 6 +#define PPOD_COLOR_MASK ((1 << PPOD_COLOR_SIZE) - 1) + +#define PPOD_IDX_SHIFT PPOD_COLOR_SIZE +#define PPOD_IDX_MAX_SIZE 24 + +#define S_PPOD_TID 0 +#define M_PPOD_TID 0xFFFFFF +#define V_PPOD_TID(x) ((x) << S_PPOD_TID) + +#define S_PPOD_VALID 24 +#define V_PPOD_VALID(x) ((x) << S_PPOD_VALID) +#define F_PPOD_VALID V_PPOD_VALID(1U) + +#define S_PPOD_COLOR 0 +#define M_PPOD_COLOR 0x3F +#define V_PPOD_COLOR(x) ((x) << S_PPOD_COLOR) + +#define S_PPOD_TAG 6 +#define M_PPOD_TAG 0xFFFFFF +#define V_PPOD_TAG(x) ((x) << S_PPOD_TAG) + +#define S_PPOD_PGSZ 30 +#define M_PPOD_PGSZ 0x3 +#define V_PPOD_PGSZ(x) ((x) << S_PPOD_PGSZ) + +/* + * large memory chunk allocation/release + * use vmalloc() if kmalloc() fails + */ +static inline void *cxgb3i_alloc_big_mem(unsigned int size, + gfp_t gfp) +{ + void *p = kmalloc(size, gfp); + if (!p) + p = vmalloc(size); + if (p) + memset(p, 0, size); + return p; +} + +static inline void cxgb3i_free_big_mem(void *addr) +{ + if (is_vmalloc_addr(addr)) + vfree(addr); + else + kfree(addr); +} + +/* + * cxgb3i ddp tag are 32 bits, it consists of reserved bits used by h/w and + * non-reserved bits that can be used by the iscsi s/w. + * The reserved bits are identified by the rsvd_bits and rsvd_shift fields + * in struct cxgb3i_tag_format. + * + * The upper most reserved bit can be used to check if a tag is ddp tag or not: + * if the bit is 0, the tag is a valid ddp tag + */ + +/** + * cxgb3i_is_ddp_tag - check if a given tag is a hw/ddp tag + * @tformat: tag format information + * @tag: tag to be checked + * + * return true if the tag is a ddp tag, false otherwise. + */ +static inline int cxgb3i_is_ddp_tag(struct cxgb3i_tag_format *tformat, u32 tag) +{ + return !(tag & (1 << (tformat->rsvd_bits + tformat->rsvd_shift - 1))); +} + +/** + * cxgb3i_sw_tag_usable - check if a given s/w tag has enough bits left for + * the reserved/hw bits + * @tformat: tag format information + * @sw_tag: s/w tag to be checked + * + * return true if the tag is a ddp tag, false otherwise. + */ +static inline int cxgb3i_sw_tag_usable(struct cxgb3i_tag_format *tformat, + u32 sw_tag) +{ + sw_tag >>= (32 - tformat->rsvd_bits); + return !sw_tag; +} + +/** + * cxgb3i_set_non_ddp_tag - mark a given s/w tag as an invalid ddp tag + * @tformat: tag format information + * @sw_tag: s/w tag to be checked + * + * insert 1 at the upper most reserved bit to mark it as an invalid ddp tag. + */ +static inline u32 cxgb3i_set_non_ddp_tag(struct cxgb3i_tag_format *tformat, + u32 sw_tag) +{ + unsigned char shift = tformat->rsvd_bits + tformat->rsvd_shift - 1; + u32 mask = (1 << shift) - 1; + + if (sw_tag && (sw_tag & ~mask)) { + u32 v1 = sw_tag & ((1 << shift) - 1); + u32 v2 = (sw_tag >> (shift - 1)) << shift; + + return v2 | v1 | 1 << shift; + } + return sw_tag | 1 << shift; +} + +/** + * cxgb3i_ddp_tag_base - shift the s/w tag bits so that reserved bits are not + * used. + * @tformat: tag format information + * @sw_tag: s/w tag to be checked + */ +static inline u32 cxgb3i_ddp_tag_base(struct cxgb3i_tag_format *tformat, + u32 sw_tag) +{ + u32 mask = (1 << tformat->rsvd_shift) - 1; + + if (sw_tag && (sw_tag & ~mask)) { + u32 v1 = sw_tag & mask; + u32 v2 = sw_tag >> tformat->rsvd_shift; + + v2 <<= tformat->rsvd_shift + tformat->rsvd_bits; + return v2 | v1; + } + return sw_tag; +} + +/** + * cxgb3i_tag_rsvd_bits - get the reserved bits used by the h/w + * @tformat: tag format information + * @tag: tag to be checked + * + * return the reserved bits in the tag + */ +static inline u32 cxgb3i_tag_rsvd_bits(struct cxgb3i_tag_format *tformat, + u32 tag) +{ + if (cxgb3i_is_ddp_tag(tformat, tag)) + return (tag >> tformat->rsvd_shift) & tformat->rsvd_mask; + return 0; +} + +/** + * cxgb3i_tag_nonrsvd_bits - get the non-reserved bits used by the s/w + * @tformat: tag format information + * @tag: tag to be checked + * + * return the non-reserved bits in the tag. + */ +static inline u32 cxgb3i_tag_nonrsvd_bits(struct cxgb3i_tag_format *tformat, + u32 tag) +{ + unsigned char shift = tformat->rsvd_bits + tformat->rsvd_shift - 1; + u32 v1, v2; + + if (cxgb3i_is_ddp_tag(tformat, tag)) { + v1 = tag & ((1 << tformat->rsvd_shift) - 1); + v2 = (tag >> (shift + 1)) << tformat->rsvd_shift; + } else { + u32 mask = (1 << shift) - 1; + + tag &= ~(1 << shift); + v1 = tag & mask; + v2 = (tag >> 1) & ~mask; + } + return v1 | v2; +} + +int cxgb3i_ddp_tag_reserve(struct t3cdev *, unsigned int tid, + struct cxgb3i_tag_format *, u32 *tag, + struct cxgb3i_gather_list *, gfp_t gfp); +void cxgb3i_ddp_tag_release(struct t3cdev *, u32 tag); + +struct cxgb3i_gather_list *cxgb3i_ddp_make_gl(unsigned int xferlen, + struct scatterlist *sgl, + unsigned int sgcnt, + struct pci_dev *pdev, + gfp_t gfp); +void cxgb3i_ddp_release_gl(struct cxgb3i_gather_list *gl, + struct pci_dev *pdev); + +int cxgb3i_setup_conn_host_pagesize(struct t3cdev *, unsigned int tid, + int reply); +int cxgb3i_setup_conn_pagesize(struct t3cdev *, unsigned int tid, int reply, + unsigned long pgsz); +int cxgb3i_setup_conn_digest(struct t3cdev *, unsigned int tid, + int hcrc, int dcrc, int reply); +int cxgb3i_ddp_find_page_index(unsigned long pgsz); +int cxgb3i_adapter_ddp_init(struct t3cdev *, struct cxgb3i_tag_format *, + unsigned int *txsz, unsigned int *rxsz); +void cxgb3i_adapter_ddp_cleanup(struct t3cdev *); +#endif diff --git a/drivers/scsi/cxgb3i/cxgb3i_init.c b/drivers/scsi/cxgb3i/cxgb3i_init.c new file mode 100644 index 0000000..091ecb4 --- /dev/null +++ b/drivers/scsi/cxgb3i/cxgb3i_init.c @@ -0,0 +1,107 @@ +/* cxgb3i_init.c: Chelsio S3xx iSCSI driver. + * + * Copyright (c) 2008 Chelsio Communications, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + * + * Written by: Karen Xie (kxie@chelsio.com) + */ + +#include "cxgb3i.h" + +#define DRV_MODULE_NAME "cxgb3i" +#define DRV_MODULE_VERSION "1.0.0" +#define DRV_MODULE_RELDATE "Jun. 1, 2008" + +static char version[] = + "Chelsio S3xx iSCSI Driver " DRV_MODULE_NAME + " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; + +MODULE_AUTHOR("Karen Xie <kxie@chelsio.com>"); +MODULE_DESCRIPTION("Chelsio S3xx iSCSI Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_MODULE_VERSION); + +static void open_s3_dev(struct t3cdev *); +static void close_s3_dev(struct t3cdev *); + +static cxgb3_cpl_handler_func cxgb3i_cpl_handlers[NUM_CPL_CMDS]; +static struct cxgb3_client t3c_client = { + .name = "iscsi_cxgb3", + .handlers = cxgb3i_cpl_handlers, + .add = open_s3_dev, + .remove = close_s3_dev, +}; + +/** + * open_s3_dev - register with cxgb3 LLD + * @t3dev: cxgb3 adapter instance + */ +static void open_s3_dev(struct t3cdev *t3dev) +{ + static int vers_printed; + + if (!vers_printed) { + printk(KERN_INFO "%s", version); + vers_printed = 1; + } + + cxgb3i_sdev_add(t3dev, &t3c_client); + cxgb3i_adapter_add(t3dev); +} + +/** + * close_s3_dev - de-register with cxgb3 LLD + * @t3dev: cxgb3 adapter instance + */ +static void close_s3_dev(struct t3cdev *t3dev) +{ + cxgb3i_adapter_remove(t3dev); + cxgb3i_sdev_remove(t3dev); +} + +/** + * cxgb3i_init_module - module init entry point + * + * initialize any driver wide global data structures and register itself + * with the cxgb3 module + */ +static int __init cxgb3i_init_module(void) +{ + int err; + + err = cxgb3i_sdev_init(cxgb3i_cpl_handlers); + if (err < 0) + return err; + + err = cxgb3i_iscsi_init(); + if (err < 0) + return err; + + err = cxgb3i_pdu_init(); + if (err < 0) + return err; + + cxgb3_register_client(&t3c_client); + + return 0; +} + +/** + * cxgb3i_exit_module - module cleanup/exit entry point + * + * go through the driver hba list and for each hba, release any resource held. + * and unregisters iscsi transport and the cxgb3 module + */ +static void __exit cxgb3i_exit_module(void) +{ + cxgb3_unregister_client(&t3c_client); + cxgb3i_pdu_cleanup(); + cxgb3i_iscsi_cleanup(); + cxgb3i_sdev_cleanup(); +} + +module_init(cxgb3i_init_module); +module_exit(cxgb3i_exit_module); diff --git a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c new file mode 100644 index 0000000..d83464b --- /dev/null +++ b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c @@ -0,0 +1,951 @@ +/* cxgb3i_iscsi.c: Chelsio S3xx iSCSI driver. + * + * Copyright (c) 2008 Chelsio Communications, Inc. + * Copyright (c) 2008 Mike Christie + * Copyright (c) 2008 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + * + * Written by: Karen Xie (kxie@chelsio.com) + */ + +#include <linux/inet.h> +#include <linux/crypto.h> +#include <net/tcp.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_eh.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi.h> +#include <scsi/iscsi_proto.h> +#include <scsi/libiscsi.h> +#include <scsi/scsi_transport_iscsi.h> + +#include "cxgb3i.h" +#include "cxgb3i_pdu.h" + +#ifdef __DEBUG_CXGB3I_TAG__ +#define cxgb3i_tag_debug cxgb3i_log_debug +#else +#define cxgb3i_tag_debug(fmt...) +#endif + +#ifdef __DEBUG_CXGB3I_API__ +#define cxgb3i_api_debug cxgb3i_log_debug +#else +#define cxgb3i_api_debug(fmt...) +#endif + +/* + * align pdu size to multiple of 512 for better performance + */ +#define align_pdu_size(n) do { n = (n) & (~511); } while (0) + +static struct scsi_transport_template *cxgb3i_scsi_transport; +static struct scsi_host_template cxgb3i_host_template; +static struct iscsi_transport cxgb3i_iscsi_transport; +static unsigned char sw_tag_idx_bits; +static unsigned char sw_tag_age_bits; + +static LIST_HEAD(cxgb3i_snic_list); +static DEFINE_RWLOCK(cxgb3i_snic_rwlock); + +/** + * cxgb3i_adapter_add - init a s3 adapter structure and any h/w settings + * @t3dev: t3cdev adapter + * return the resulting cxgb3i_adapter struct + */ +struct cxgb3i_adapter *cxgb3i_adapter_add(struct t3cdev *t3dev) +{ + struct cxgb3i_adapter *snic; + struct adapter *adapter = tdev2adap(t3dev); + int i; + + snic = kzalloc(sizeof(*snic), GFP_KERNEL); + if (!snic) { + cxgb3i_api_debug("cxgb3 %s, OOM.\n", t3dev->name); + return NULL; + } + spin_lock_init(&snic->lock); + + snic->tdev = t3dev; + snic->pdev = adapter->pdev; + snic->tag_format.sw_bits = sw_tag_idx_bits + sw_tag_age_bits; + + if (cxgb3i_adapter_ddp_init(t3dev, &snic->tag_format, + &snic->tx_max_size, + &snic->rx_max_size) < 0) + goto free_snic; + + for_each_port(adapter, i) { + snic->hba[i] = cxgb3i_hba_host_add(snic, adapter->port[i]); + if (!snic->hba[i]) + goto ulp_cleanup; + } + snic->hba_cnt = adapter->params.nports; + + /* add to the list */ + write_lock(&cxgb3i_snic_rwlock); + list_add_tail(&snic->list_head, &cxgb3i_snic_list); + write_unlock(&cxgb3i_snic_rwlock); + + return snic; + +ulp_cleanup: + cxgb3i_adapter_ddp_cleanup(t3dev); +free_snic: + kfree(snic); + return NULL; +} + +/** + * cxgb3i_adapter_remove - release all the resources held and cleanup any + * h/w settings + * @t3dev: t3cdev adapter + */ +void cxgb3i_adapter_remove(struct t3cdev *t3dev) +{ + int i; + struct cxgb3i_adapter *snic; + + /* remove from the list */ + write_lock(&cxgb3i_snic_rwlock); + list_for_each_entry(snic, &cxgb3i_snic_list, list_head) { + if (snic->tdev == t3dev) { + list_del(&snic->list_head); + break; + } + } + write_unlock(&cxgb3i_snic_rwlock); + + if (snic) { + for (i = 0; i < snic->hba_cnt; i++) { + if (snic->hba[i]) { + cxgb3i_hba_host_remove(snic->hba[i]); + snic->hba[i] = NULL; + } + } + + /* release ddp resources */ + cxgb3i_adapter_ddp_cleanup(snic->tdev); + kfree(snic); + } +} + +/** + * cxgb3i_hba_find_by_netdev - find the cxgb3i_hba structure with a given + * net_device + * @t3dev: t3cdev adapter + */ +struct cxgb3i_hba *cxgb3i_hba_find_by_netdev(struct net_device *ndev) +{ + struct cxgb3i_adapter *snic; + int i; + + read_lock(&cxgb3i_snic_rwlock); + list_for_each_entry(snic, &cxgb3i_snic_list, list_head) { + for (i = 0; i < snic->hba_cnt; i++) { + if (snic->hba[i]->ndev == ndev) { + read_unlock(&cxgb3i_snic_rwlock); + return snic->hba[i]; + } + } + } + read_unlock(&cxgb3i_snic_rwlock); + return NULL; +} + +/** + * cxgb3i_hba_host_add - register a new host with scsi/iscsi + * @snic: the cxgb3i adapter + * @ndev: associated net_device + */ +struct cxgb3i_hba *cxgb3i_hba_host_add(struct cxgb3i_adapter *snic, + struct net_device *ndev) +{ + struct cxgb3i_hba *hba; + struct Scsi_Host *shost; + int err; + + shost = iscsi_host_alloc(&cxgb3i_host_template, + sizeof(struct cxgb3i_hba), + CXGB3I_SCSI_QDEPTH_DFLT); + if (!shost) { + cxgb3i_log_info("iscsi_host_alloc failed.\n"); + return NULL; + } + + shost->transportt = cxgb3i_scsi_transport; + shost->max_lun = CXGB3I_MAX_LUN; + shost->max_id = CXGB3I_MAX_TARGET; + shost->max_channel = 0; + shost->max_cmd_len = 16; + + hba = iscsi_host_priv(shost); + hba->snic = snic; + hba->ndev = ndev; + hba->shost = shost; + + pci_dev_get(snic->pdev); + err = iscsi_host_add(shost, &snic->pdev->dev); + if (err) { + cxgb3i_log_info("iscsi_host_add failed.\n"); + goto pci_dev_put; + } + + cxgb3i_api_debug("shost 0x%p, hba 0x%p, no %u.\n", + shost, hba, shost->host_no); + + return hba; + +pci_dev_put: + pci_dev_put(snic->pdev); + scsi_host_put(shost); + return NULL; +} + +/** + * cxgb3i_hba_host_remove - de-register the host with scsi/iscsi + * @hba: the cxgb3i hba + */ +void cxgb3i_hba_host_remove(struct cxgb3i_hba *hba) +{ + cxgb3i_api_debug("shost 0x%p, hba 0x%p, no %u.\n", + hba->shost, hba, hba->shost->host_no); + iscsi_host_remove(hba->shost); + pci_dev_put(hba->snic->pdev); + iscsi_host_free(hba->shost); +} + +/** + * cxgb3i_ep_connect - establish TCP connection to target portal + * @dst_addr: target IP address + * @non_blocking: blocking or non-blocking call + * + * Initiates a TCP/IP connection to the dst_addr + */ +static struct iscsi_endpoint *cxgb3i_ep_connect(struct sockaddr *dst_addr, + int non_blocking) +{ + struct iscsi_endpoint *ep; + struct cxgb3i_endpoint *cep; + struct cxgb3i_hba *hba; + struct s3_conn *c3cn = NULL; + int err = 0; + + c3cn = cxgb3i_c3cn_create(); + if (!c3cn) { + cxgb3i_log_info("ep connect OOM.\n"); + err = -ENOMEM; + goto release_conn; + } + + err = cxgb3i_c3cn_connect(c3cn, (struct sockaddr_in *)dst_addr); + if (err < 0) { + cxgb3i_log_info("ep connect failed.\n"); + goto release_conn; + } + hba = cxgb3i_hba_find_by_netdev(c3cn->dst_cache->dev); + if (!hba) { + err = -ENOSPC; + cxgb3i_log_info("NOT going through cxgbi device.\n"); + goto release_conn; + } + if (c3cn_is_closing(c3cn)) { + err = -ENOSPC; + cxgb3i_log_info("ep connect unable to connect.\n"); + goto release_conn; + } + + ep = iscsi_create_endpoint(sizeof(*cep)); + if (!ep) { + err = -ENOMEM; + cxgb3i_log_info("iscsi alloc ep, OOM.\n"); + goto release_conn; + } + cep = ep->dd_data; + cep->c3cn = c3cn; + cep->hba = hba; + + cxgb3i_api_debug("ep 0x%p, 0x%p, c3cn 0x%p, hba 0x%p.\n", + ep, cep, c3cn, hba); + return ep; + +release_conn: + cxgb3i_api_debug("conn 0x%p failed, release.\n", c3cn); + if (c3cn) + cxgb3i_c3cn_release(c3cn); + return ERR_PTR(err); +} + +/** + * cxgb3i_ep_poll - polls for TCP connection establishement + * @ep: TCP connection (endpoint) handle + * @timeout_ms: timeout value in milli secs + * + * polls for TCP connect request to complete + */ +static int cxgb3i_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) +{ + struct cxgb3i_endpoint *cep = ep->dd_data; + struct s3_conn *c3cn = cep->c3cn; + + if (!c3cn_is_established(c3cn)) + return 0; + cxgb3i_api_debug("ep 0x%p, c3cn 0x%p established.\n", ep, c3cn); + return 1; +} + +/** + * cxgb3i_ep_disconnect - teardown TCP connection + * @ep: TCP connection (endpoint) handle + * + * teardown TCP connection + */ +static void cxgb3i_ep_disconnect(struct iscsi_endpoint *ep) +{ + struct cxgb3i_endpoint *cep = ep->dd_data; + struct cxgb3i_conn *cconn = cep->cconn; + + cxgb3i_api_debug("ep 0x%p, cep 0x%p.\n", ep, cep); + + if (cconn && cconn->conn) { + /* + * stop the xmit path so the xmit_pdu function is + * not being called + */ + iscsi_suspend_tx(cconn->conn); + + write_lock_bh(&cep->c3cn->callback_lock); + cep->c3cn->user_data = NULL; + cconn->cep = NULL; + write_unlock_bh(&cep->c3cn->callback_lock); + } + + cxgb3i_api_debug("ep 0x%p, cep 0x%p, release c3cn 0x%p.\n", + ep, cep, cep->c3cn); + cxgb3i_c3cn_release(cep->c3cn); + iscsi_destroy_endpoint(ep); +} + +/** + * cxgb3i_session_create - create a new iscsi session + * @cmds_max: max # of commands + * @qdepth: scsi queue depth + * @initial_cmdsn: initial iscsi CMDSN for this session + * @host_no: pointer to return host no + * + * Creates a new iSCSI session + */ +static struct iscsi_cls_session * +cxgb3i_session_create(struct iscsi_endpoint *ep, u16 cmds_max, u16 qdepth, + u32 initial_cmdsn, u32 *host_no) +{ + struct cxgb3i_endpoint *cep; + struct cxgb3i_hba *hba; + struct Scsi_Host *shost; + struct iscsi_cls_session *cls_session; + struct iscsi_session *session; + + if (!ep) { + cxgb3i_log_error("%s, missing endpoint.\n", __func__); + return NULL; + } + + cep = ep->dd_data; + hba = cep->hba; + shost = hba->shost; + cxgb3i_api_debug("ep 0x%p, cep 0x%p, hba 0x%p.\n", ep, cep, hba); + BUG_ON(hba != iscsi_host_priv(shost)); + + *host_no = shost->host_no; + + cls_session = iscsi_session_setup(&cxgb3i_iscsi_transport, shost, + cmds_max, + sizeof(struct iscsi_tcp_task), + initial_cmdsn, ISCSI_MAX_TARGET); + if (!cls_session) + return NULL; + session = cls_session->dd_data; + if (iscsi_tcp_r2tpool_alloc(session)) + goto remove_session; + + return cls_session; + +remove_session: + iscsi_session_teardown(cls_session); + return NULL; +} + +/** + * cxgb3i_session_destroy - destroys iscsi session + * @cls_session: pointer to iscsi cls session + * + * Destroys an iSCSI session instance and releases its all resources held + */ +static void cxgb3i_session_destroy(struct iscsi_cls_session *cls_session) +{ + cxgb3i_api_debug("sess 0x%p.\n", cls_session); + iscsi_tcp_r2tpool_free(cls_session->dd_data); + iscsi_session_teardown(cls_session); +} + +/** + * cxgb3i_conn_max_xmit_dlength -- check the max. xmit pdu segment size, + * reduce it to be within the hardware limit if needed + * @conn: iscsi connection + */ +static inline int cxgb3i_conn_max_xmit_dlength(struct iscsi_conn *conn) + +{ + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct cxgb3i_conn *cconn = tcp_conn->dd_data; + unsigned int max = min_t(unsigned int, ULP2_MAX_PDU_PAYLOAD, + cconn->hba->snic->tx_max_size - + ISCSI_PDU_NONPAYLOAD_MAX); + + if (conn->max_xmit_dlength) + conn->max_xmit_dlength = min_t(unsigned int, + conn->max_xmit_dlength, max); + else + conn->max_xmit_dlength = max; + align_pdu_size(conn->max_xmit_dlength); + cxgb3i_log_info("conn 0x%p, max xmit %u.\n", + conn, conn->max_xmit_dlength); + return 0; +} + +/** + * cxgb3i_conn_max_recv_dlength -- check the max. recv pdu segment size against + * the hardware limit + * @conn: iscsi connection + * return 0 if the value is valid, < 0 otherwise. + */ +static inline int cxgb3i_conn_max_recv_dlength(struct iscsi_conn *conn) +{ + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct cxgb3i_conn *cconn = tcp_conn->dd_data; + unsigned int max = min_t(unsigned int, ULP2_MAX_PDU_PAYLOAD, + cconn->hba->snic->rx_max_size - + ISCSI_PDU_NONPAYLOAD_MAX); + + align_pdu_size(max); + if (conn->max_recv_dlength) { + if (conn->max_recv_dlength > max) { + cxgb3i_log_error("MaxRecvDataSegmentLength %u too big." + " Need to be <= %u.\n", + conn->max_recv_dlength, max); + return -EINVAL; + } + conn->max_recv_dlength = min_t(unsigned int, + conn->max_recv_dlength, max); + align_pdu_size(conn->max_recv_dlength); + } else + conn->max_recv_dlength = max; + cxgb3i_api_debug("conn 0x%p, max recv %u.\n", + conn, conn->max_recv_dlength); + return 0; +} + +/** + * cxgb3i_conn_create - create iscsi connection instance + * @cls_session: pointer to iscsi cls session + * @cid: iscsi cid + * + * Creates a new iSCSI connection instance for a given session + */ +static struct iscsi_cls_conn *cxgb3i_conn_create(struct iscsi_cls_session + *cls_session, u32 cid) +{ + struct iscsi_cls_conn *cls_conn; + struct iscsi_conn *conn; + struct iscsi_tcp_conn *tcp_conn; + struct cxgb3i_conn *cconn; + + cxgb3i_api_debug("sess 0x%p, cid %u.\n", cls_session, cid); + + cls_conn = iscsi_tcp_conn_setup(cls_session, sizeof(*cconn), cid); + if (!cls_conn) + return NULL; + conn = cls_conn->dd_data; + tcp_conn = conn->dd_data; + cconn = tcp_conn->dd_data; + + cconn->conn = conn; + return cls_conn; +} + +/** + * cxgb3i_conn_bind - binds iscsi sess, conn and endpoint together + * @cls_session: pointer to iscsi cls session + * @cls_conn: pointer to iscsi cls conn + * @transport_eph: 64-bit EP handle + * @is_leading: leading connection on this session? + * + * Binds together an iSCSI session, an iSCSI connection and a + * TCP connection. This routine returns error code if the TCP + * connection does not belong on the device iSCSI sess/conn is bound + */ + +static int cxgb3i_conn_bind(struct iscsi_cls_session *cls_session, + struct iscsi_cls_conn *cls_conn, + u64 transport_eph, int is_leading) +{ + struct iscsi_conn *conn = cls_conn->dd_data; + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct cxgb3i_conn *cconn = tcp_conn->dd_data; + struct cxgb3i_adapter *snic; + struct iscsi_endpoint *ep; + struct cxgb3i_endpoint *cep; + struct s3_conn *c3cn; + int err; + + ep = iscsi_lookup_endpoint(transport_eph); + if (!ep) + return -EINVAL; + + /* setup ddp pagesize */ + cep = ep->dd_data; + c3cn = cep->c3cn; + snic = cep->hba->snic; + err = cxgb3i_setup_conn_host_pagesize(snic->tdev, c3cn->tid, 0); + if (err < 0) + return err; + + cxgb3i_api_debug("ep 0x%p, cls sess 0x%p, cls conn 0x%p.\n", + ep, cls_session, cls_conn); + + err = iscsi_conn_bind(cls_session, cls_conn, is_leading); + if (err) + return -EINVAL; + + /* calculate the tag idx bits needed for this conn based on cmds_max */ + cconn->task_idx_bits = (__ilog2_u32(conn->session->cmds_max - 1)) + 1; + cxgb3i_api_debug("session cmds_max 0x%x, bits %u.\n", + conn->session->cmds_max, cconn->task_idx_bits); + + read_lock(&c3cn->callback_lock); + c3cn->user_data = conn; + cconn->hba = cep->hba; + cconn->cep = cep; + cep->cconn = cconn; + read_unlock(&c3cn->callback_lock); + + cxgb3i_conn_max_xmit_dlength(conn); + cxgb3i_conn_max_recv_dlength(conn); + + spin_lock_bh(&conn->session->lock); + sprintf(conn->portal_address, NIPQUAD_FMT, + NIPQUAD(c3cn->daddr.sin_addr.s_addr)); + conn->portal_port = ntohs(c3cn->daddr.sin_port); + spin_unlock_bh(&conn->session->lock); + + /* init recv engine */ + iscsi_tcp_hdr_recv_prep(tcp_conn); + + return 0; +} + +/** + * cxgb3i_conn_get_param - return iscsi connection parameter to caller + * @cls_conn: pointer to iscsi cls conn + * @param: parameter type identifier + * @buf: buffer pointer + * + * returns iSCSI connection parameters + */ +static int cxgb3i_conn_get_param(struct iscsi_cls_conn *cls_conn, + enum iscsi_param param, char *buf) +{ + struct iscsi_conn *conn = cls_conn->dd_data; + int len; + + cxgb3i_api_debug("cls_conn 0x%p, param %d.\n", cls_conn, param); + + switch (param) { + case ISCSI_PARAM_CONN_PORT: + spin_lock_bh(&conn->session->lock); + len = sprintf(buf, "%hu\n", conn->portal_port); + spin_unlock_bh(&conn->session->lock); + break; + case ISCSI_PARAM_CONN_ADDRESS: + spin_lock_bh(&conn->session->lock); + len = sprintf(buf, "%s\n", conn->portal_address); + spin_unlock_bh(&conn->session->lock); + break; + default: + return iscsi_conn_get_param(cls_conn, param, buf); + } + + return len; +} + +/** + * cxgb3i_conn_set_param - set iscsi connection parameter + * @cls_conn: pointer to iscsi cls conn + * @param: parameter type identifier + * @buf: buffer pointer + * @buflen: buffer length + * + * set iSCSI connection parameters + */ +static int cxgb3i_conn_set_param(struct iscsi_cls_conn *cls_conn, + enum iscsi_param param, char *buf, int buflen) +{ + struct iscsi_conn *conn = cls_conn->dd_data; + struct iscsi_session *session = conn->session; + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct cxgb3i_conn *cconn = tcp_conn->dd_data; + struct cxgb3i_adapter *snic = cconn->hba->snic; + struct s3_conn *c3cn = cconn->cep->c3cn; + int value, err = 0; + + switch (param) { + case ISCSI_PARAM_HDRDGST_EN: + err = iscsi_set_param(cls_conn, param, buf, buflen); + if (!err && conn->hdrdgst_en) + err = cxgb3i_setup_conn_digest(snic->tdev, c3cn->tid, + conn->hdrdgst_en, + conn->datadgst_en, 0); + break; + case ISCSI_PARAM_DATADGST_EN: + err = iscsi_set_param(cls_conn, param, buf, buflen); + if (!err && conn->datadgst_en) + err = cxgb3i_setup_conn_digest(snic->tdev, c3cn->tid, + conn->hdrdgst_en, + conn->datadgst_en, 0); + break; + case ISCSI_PARAM_MAX_R2T: + sscanf(buf, "%d", &value); + if (value <= 0 || !is_power_of_2(value)) + return -EINVAL; + if (session->max_r2t == value) + break; + iscsi_tcp_r2tpool_free(session); + err = iscsi_set_param(cls_conn, param, buf, buflen); + if (!err && iscsi_tcp_r2tpool_alloc(session)) + return -ENOMEM; + case ISCSI_PARAM_MAX_RECV_DLENGTH: + err = iscsi_set_param(cls_conn, param, buf, buflen); + if (!err) + err = cxgb3i_conn_max_recv_dlength(conn); + break; + case ISCSI_PARAM_MAX_XMIT_DLENGTH: + err = iscsi_set_param(cls_conn, param, buf, buflen); + if (!err) + err = cxgb3i_conn_max_xmit_dlength(conn); + break; + default: + return iscsi_set_param(cls_conn, param, buf, buflen); + } + return err; +} + +/** + * cxgb3i_host_set_param - configure host (adapter) related parameters + * @shost: scsi host pointer + * @param: parameter type identifier + * @buf: buffer pointer + */ +static int cxgb3i_host_set_param(struct Scsi_Host *shost, + enum iscsi_host_param param, + char *buf, int buflen) +{ + struct cxgb3i_hba *hba = iscsi_host_priv(shost); + + cxgb3i_api_debug("param %d, buf %s.\n", param, buf); + + switch (param) { + case ISCSI_HOST_PARAM_IPADDRESS: + { + __be32 addr = in_aton(buf); + cxgb3i_set_private_ipv4addr(hba->ndev, addr); + return 0; + } + case ISCSI_HOST_PARAM_HWADDRESS: + case ISCSI_HOST_PARAM_NETDEV_NAME: + /* ignore */ + return 0; + default: + return iscsi_host_set_param(shost, param, buf, buflen); + } +} + +/** + * cxgb3i_host_get_param - returns host (adapter) related parameters + * @shost: scsi host pointer + * @param: parameter type identifier + * @buf: buffer pointer + */ +static int cxgb3i_host_get_param(struct Scsi_Host *shost, + enum iscsi_host_param param, char *buf) +{ + struct cxgb3i_hba *hba = iscsi_host_priv(shost); + int len = 0; + + cxgb3i_api_debug("hba %s, param %d.\n", hba->ndev->name, param); + + switch (param) { + case ISCSI_HOST_PARAM_HWADDRESS: + len = sysfs_format_mac(buf, hba->ndev->dev_addr, 6); + break; + case ISCSI_HOST_PARAM_NETDEV_NAME: + len = sprintf(buf, "%s\n", hba->ndev->name); + break; + case ISCSI_HOST_PARAM_IPADDRESS: + { + __be32 addr; + + addr = cxgb3i_get_private_ipv4addr(hba->ndev); + len = sprintf(buf, NIPQUAD_FMT, NIPQUAD(addr)); + break; + } + default: + return iscsi_host_get_param(shost, param, buf); + } + return len; +} + +/** + * cxgb3i_conn_get_stats - returns iSCSI stats + * @cls_conn: pointer to iscsi cls conn + * @stats: pointer to iscsi statistic struct + */ +static void cxgb3i_conn_get_stats(struct iscsi_cls_conn *cls_conn, + struct iscsi_stats *stats) +{ + struct iscsi_conn *conn = cls_conn->dd_data; + + stats->txdata_octets = conn->txdata_octets; + stats->rxdata_octets = conn->rxdata_octets; + stats->scsicmd_pdus = conn->scsicmd_pdus_cnt; + stats->dataout_pdus = conn->dataout_pdus_cnt; + stats->scsirsp_pdus = conn->scsirsp_pdus_cnt; + stats->datain_pdus = conn->datain_pdus_cnt; + stats->r2t_pdus = conn->r2t_pdus_cnt; + stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt; + stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt; + stats->digest_err = 0; + stats->timeout_err = 0; + stats->custom_length = 1; + strcpy(stats->custom[0].desc, "eh_abort_cnt"); + stats->custom[0].value = conn->eh_abort_cnt; +} + +/** + * cxgb3i_parse_itt - get the idx and age bits from a given tag + * @conn: iscsi connection + * @itt: itt tag + * @idx: task index, filled in by this function + * @age: session age, filled in by this function + */ +static void cxgb3i_parse_itt(struct iscsi_conn *conn, itt_t itt, + int *idx, int *age) +{ + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct cxgb3i_conn *cconn = tcp_conn->dd_data; + struct cxgb3i_adapter *snic = cconn->hba->snic; + u32 tag = ntohl((__force u32) itt); + u32 sw_bits; + + sw_bits = cxgb3i_tag_nonrsvd_bits(&snic->tag_format, tag); + if (idx) + *idx = sw_bits & ((1 << cconn->task_idx_bits) - 1); + if (age) + *age = (sw_bits >> cconn->task_idx_bits) & ISCSI_AGE_MASK; + + cxgb3i_tag_debug("parse tag 0x%x/0x%x, sw 0x%x, itt 0x%x, age 0x%x.\n", + tag, itt, sw_bits, idx ? *idx : 0xFFFFF, + age ? *age : 0xFF); +} + +/** + * cxgb3i_reserve_itt - generate tag for a give task + * Try to set up ddp for a scsi read task. + * @task: iscsi task + * @hdr_itt: tag, filled in by this function + */ +int cxgb3i_reserve_itt(struct iscsi_task *task, itt_t *hdr_itt) +{ + struct scsi_cmnd *sc = task->sc; + struct iscsi_conn *conn = task->conn; + struct iscsi_session *sess = conn->session; + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct cxgb3i_conn *cconn = tcp_conn->dd_data; + struct cxgb3i_adapter *snic = cconn->hba->snic; + struct cxgb3i_tag_format *tformat = &snic->tag_format; + u32 sw_tag = (sess->age << cconn->task_idx_bits) | task->itt; + u32 tag; + int err = -EINVAL; + + if (sc && + (scsi_bidi_cmnd(sc) || sc->sc_data_direction == DMA_FROM_DEVICE) && + cxgb3i_sw_tag_usable(tformat, sw_tag)) { + struct s3_conn *c3cn = cconn->cep->c3cn; + struct cxgb3i_gather_list *gl; + + gl = cxgb3i_ddp_make_gl(scsi_in(sc)->length, + scsi_in(sc)->table.sgl, + scsi_in(sc)->table.nents, + snic->pdev, + GFP_ATOMIC); + if (gl) { + tag = sw_tag; + err = cxgb3i_ddp_tag_reserve(snic->tdev, c3cn->tid, + tformat, &tag, + gl, GFP_ATOMIC); + if (err < 0) + cxgb3i_ddp_release_gl(gl, snic->pdev); + } + } + + if (err < 0) + tag = cxgb3i_set_non_ddp_tag(tformat, sw_tag); + /* the itt need to sent in big-endian order */ + *hdr_itt = (__force itt_t)htonl(tag); + + cxgb3i_tag_debug("new tag 0x%x/0x%x (itt 0x%x, age 0x%x).\n", + tag, *hdr_itt, task->itt, sess->age); + return 0; +} + +/** + * cxgb3i_release_itt - release the tag for a given task + * if the tag is a ddp tag, release the ddp setup + * @task: iscsi task + * @hdr_itt: tag + */ +void cxgb3i_release_itt(struct iscsi_task *task, itt_t hdr_itt) +{ + struct scsi_cmnd *sc = task->sc; + struct iscsi_tcp_conn *tcp_conn = task->conn->dd_data; + struct cxgb3i_conn *cconn = tcp_conn->dd_data; + struct cxgb3i_adapter *snic = cconn->hba->snic; + struct cxgb3i_tag_format *tformat = &snic->tag_format; + u32 tag = ntohl((__force u32)hdr_itt); + + cxgb3i_tag_debug("release tag 0x%x.\n", tag); + + if (sc && + (scsi_bidi_cmnd(sc) || sc->sc_data_direction == DMA_FROM_DEVICE) && + cxgb3i_is_ddp_tag(tformat, tag)) + cxgb3i_ddp_tag_release(snic->tdev, tag); +} + +/** + * cxgb3i_host_template -- Scsi_Host_Template structure + * used when registering with the scsi mid layer + */ +static struct scsi_host_template cxgb3i_host_template = { + .module = THIS_MODULE, + .name = "Chelsio S3xx iSCSI Initiator", + .proc_name = "cxgb3i", + .queuecommand = iscsi_queuecommand, + .change_queue_depth = iscsi_change_queue_depth, + .can_queue = 128 * (ISCSI_DEF_XMIT_CMDS_MAX - 1), + .sg_tablesize = SG_ALL, + .max_sectors = 0xFFFF, + .cmd_per_lun = ISCSI_DEF_CMD_PER_LUN, + .eh_abort_handler = iscsi_eh_abort, + .eh_device_reset_handler = iscsi_eh_device_reset, + .eh_target_reset_handler = iscsi_eh_target_reset, + .use_clustering = DISABLE_CLUSTERING, + .this_id = -1, +}; + +static struct iscsi_transport cxgb3i_iscsi_transport = { + .owner = THIS_MODULE, + .name = "cxgb3i", + .caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST + | CAP_DATADGST | CAP_DIGEST_OFFLOAD | + CAP_PADDING_OFFLOAD, + .param_mask = ISCSI_MAX_RECV_DLENGTH | + ISCSI_MAX_XMIT_DLENGTH | + ISCSI_HDRDGST_EN | + ISCSI_DATADGST_EN | + ISCSI_INITIAL_R2T_EN | + ISCSI_MAX_R2T | + ISCSI_IMM_DATA_EN | + ISCSI_FIRST_BURST | + ISCSI_MAX_BURST | + ISCSI_PDU_INORDER_EN | + ISCSI_DATASEQ_INORDER_EN | + ISCSI_ERL | + ISCSI_CONN_PORT | + ISCSI_CONN_ADDRESS | + ISCSI_EXP_STATSN | + ISCSI_PERSISTENT_PORT | + ISCSI_PERSISTENT_ADDRESS | + ISCSI_TARGET_NAME | ISCSI_TPGT | + ISCSI_USERNAME | ISCSI_PASSWORD | + ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN | + ISCSI_FAST_ABORT | ISCSI_ABORT_TMO | + ISCSI_LU_RESET_TMO | + ISCSI_PING_TMO | ISCSI_RECV_TMO | + ISCSI_IFACE_NAME | ISCSI_INITIATOR_NAME, + .host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS | + ISCSI_HOST_INITIATOR_NAME | ISCSI_HOST_NETDEV_NAME, + .get_host_param = cxgb3i_host_get_param, + .set_host_param = cxgb3i_host_set_param, + /* session management */ + .create_session = cxgb3i_session_create, + .destroy_session = cxgb3i_session_destroy, + .get_session_param = iscsi_session_get_param, + /* connection management */ + .create_conn = cxgb3i_conn_create, + .bind_conn = cxgb3i_conn_bind, + .destroy_conn = iscsi_tcp_conn_teardown, + .start_conn = iscsi_conn_start, + .stop_conn = iscsi_conn_stop, + .get_conn_param = cxgb3i_conn_get_param, + .set_param = cxgb3i_conn_set_param, + .get_stats = cxgb3i_conn_get_stats, + /* pdu xmit req. from user space */ + .send_pdu = iscsi_conn_send_pdu, + /* task */ + .init_task = iscsi_tcp_task_init, + .xmit_task = iscsi_tcp_task_xmit, + .cleanup_task = cxgb3i_conn_cleanup_task, + + /* pdu */ + .alloc_pdu = cxgb3i_conn_alloc_pdu, + .init_pdu = cxgb3i_conn_init_pdu, + .xmit_pdu = cxgb3i_conn_xmit_pdu, + .parse_pdu_itt = cxgb3i_parse_itt, + + /* TCP connect/disconnect */ + .ep_connect = cxgb3i_ep_connect, + .ep_poll = cxgb3i_ep_poll, + .ep_disconnect = cxgb3i_ep_disconnect, + /* Error recovery timeout call */ + .session_recovery_timedout = iscsi_session_recovery_timedout, +}; + +int cxgb3i_iscsi_init(void) +{ + sw_tag_idx_bits = (__ilog2_u32(ISCSI_ITT_MASK)) + 1; + sw_tag_age_bits = (__ilog2_u32(ISCSI_AGE_MASK)) + 1; + cxgb3i_log_info("tag itt 0x%x, %u bits, age 0x%x, %u bits.\n", + ISCSI_ITT_MASK, sw_tag_idx_bits, + ISCSI_AGE_MASK, sw_tag_age_bits); + + cxgb3i_scsi_transport = + iscsi_register_transport(&cxgb3i_iscsi_transport); + if (!cxgb3i_scsi_transport) { + cxgb3i_log_error("Could not register cxgb3i transport.\n"); + return -ENODEV; + } + cxgb3i_api_debug("cxgb3i transport 0x%p.\n", cxgb3i_scsi_transport); + return 0; +} + +void cxgb3i_iscsi_cleanup(void) +{ + if (cxgb3i_scsi_transport) { + cxgb3i_api_debug("cxgb3i transport 0x%p.\n", + cxgb3i_scsi_transport); + iscsi_unregister_transport(&cxgb3i_iscsi_transport); + } +} diff --git a/drivers/scsi/cxgb3i/cxgb3i_offload.c b/drivers/scsi/cxgb3i/cxgb3i_offload.c new file mode 100644 index 0000000..a865f1f --- /dev/null +++ b/drivers/scsi/cxgb3i/cxgb3i_offload.c @@ -0,0 +1,1810 @@ +/* + * cxgb3i_offload.c: Chelsio S3xx iscsi offloaded tcp connection management + * + * Copyright (C) 2003-2008 Chelsio Communications. All rights reserved. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the LICENSE file included in this + * release for licensing terms and conditions. + * + * Written by: Dimitris Michailidis (dm@chelsio.com) + * Karen Xie (kxie@chelsio.com) + */ + +#include <linux/if_vlan.h> +#include <linux/version.h> + +#include "cxgb3_defs.h" +#include "cxgb3_ctl_defs.h" +#include "firmware_exports.h" +#include "cxgb3i_offload.h" +#include "cxgb3i_pdu.h" +#include "cxgb3i_ddp.h" + +#ifdef __DEBUG_C3CN_CONN__ +#define c3cn_conn_debug cxgb3i_log_info +#else +#define c3cn_conn_debug(fmt...) +#endif + +#ifdef __DEBUG_C3CN_TX__ +#define c3cn_tx_debug cxgb3i_log_debug +#else +#define c3cn_tx_debug(fmt...) +#endif + +#ifdef __DEBUG_C3CN_RX__ +#define c3cn_rx_debug cxgb3i_log_debug +#else +#define c3cn_rx_debug(fmt...) +#endif + +/* + * module parameters releated to offloaded iscsi connection + */ +static int cxgb3_rcv_win = 256 * 1024; +module_param(cxgb3_rcv_win, int, 0644); +MODULE_PARM_DESC(cxgb3_rcv_win, "TCP receive window in bytes (default=256KB)"); + +static int cxgb3_snd_win = 64 * 1024; +module_param(cxgb3_snd_win, int, 0644); +MODULE_PARM_DESC(cxgb3_snd_win, "TCP send window in bytes (default=64KB)"); + +static int cxgb3_rx_credit_thres = 10 * 1024; +module_param(cxgb3_rx_credit_thres, int, 0644); +MODULE_PARM_DESC(rx_credit_thres, + "RX credits return threshold in bytes (default=10KB)"); + +static unsigned int cxgb3_max_connect = 8 * 1024; +module_param(cxgb3_max_connect, uint, 0644); +MODULE_PARM_DESC(cxgb3_max_connect, "Max. # of connections (default=8092)"); + +static unsigned int cxgb3_sport_base = 20000; +module_param(cxgb3_sport_base, uint, 0644); +MODULE_PARM_DESC(cxgb3_sport_base, "starting port number (default=20000)"); + +/* + * cxgb3i tcp connection data(per adapter) list + */ +static LIST_HEAD(cdata_list); +static DEFINE_RWLOCK(cdata_rwlock); + +static int c3cn_push_tx_frames(struct s3_conn *c3cn, int req_completion); +static void c3cn_release_offload_resources(struct s3_conn *c3cn); + +/* + * iscsi source port management + * + * Find a free source port in the port allocation map. We use a very simple + * rotor scheme to look for the next free port. + * + * If a source port has been specified make sure that it doesn't collide with + * our normal source port allocation map. If it's outside the range of our + * allocation/deallocation scheme just let them use it. + * + * If the source port is outside our allocation range, the caller is + * responsible for keeping track of their port usage. + */ +static int c3cn_get_port(struct s3_conn *c3cn, struct cxgb3i_sdev_data *cdata) +{ + unsigned int start; + int idx; + + if (!cdata) + goto error_out; + + if (c3cn->saddr.sin_port != 0) { + idx = ntohs(c3cn->saddr.sin_port) - cxgb3_sport_base; + if (idx < 0 || idx >= cxgb3_max_connect) + return 0; + if (!test_and_set_bit(idx, cdata->sport_map)) + return -EADDRINUSE; + } + + /* the sport_map_next may not be accurate but that is okay, sport_map + should be */ + start = idx = cdata->sport_map_next; + do { + if (++idx >= cxgb3_max_connect) + idx = 0; + if (!(test_and_set_bit(idx, cdata->sport_map))) { + c3cn->saddr.sin_port = htons(cxgb3_sport_base + idx); + cdata->sport_map_next = idx; + c3cn_conn_debug("%s reserve port %u.\n", + cdata->cdev->name, + cxgb3_sport_base + idx); + return 0; + } + } while (idx != start); + +error_out: + return -EADDRNOTAVAIL; +} + +static void c3cn_put_port(struct s3_conn *c3cn) +{ + struct cxgb3i_sdev_data *cdata = CXGB3_SDEV_DATA(c3cn->cdev); + + if (c3cn->saddr.sin_port) { + int idx = ntohs(c3cn->saddr.sin_port) - cxgb3_sport_base; + + c3cn->saddr.sin_port = 0; + if (idx < 0 || idx >= cxgb3_max_connect) + return; + clear_bit(idx, cdata->sport_map); + c3cn_conn_debug("%s, release port %u.\n", + cdata->cdev->name, cxgb3_sport_base + idx); + } +} + +static inline void c3cn_set_flag(struct s3_conn *c3cn, enum c3cn_flags flag) +{ + __set_bit(flag, &c3cn->flags); + c3cn_conn_debug("c3cn 0x%p, set %d, s %u, f 0x%lx.\n", + c3cn, flag, c3cn->state, c3cn->flags); +} + +static inline void c3cn_clear_flag(struct s3_conn *c3cn, enum c3cn_flags flag) +{ + __clear_bit(flag, &c3cn->flags); + c3cn_conn_debug("c3cn 0x%p, clear %d, s %u, f 0x%lx.\n", + c3cn, flag, c3cn->state, c3cn->flags); +} + +static inline int c3cn_flag(struct s3_conn *c3cn, enum c3cn_flags flag) +{ + if (c3cn == NULL) + return 0; + return test_bit(flag, &c3cn->flags); +} + +static void c3cn_set_state(struct s3_conn *c3cn, int state) +{ + c3cn_conn_debug("c3cn 0x%p state -> %u.\n", c3cn, state); + c3cn->state = state; +} + +static inline void c3cn_hold(struct s3_conn *c3cn) +{ + atomic_inc(&c3cn->refcnt); +} + +static inline void c3cn_put(struct s3_conn *c3cn) +{ + if (atomic_dec_and_test(&c3cn->refcnt)) { + c3cn_conn_debug("free c3cn 0x%p, s %u, f 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + kfree(c3cn); + } +} + +static void c3cn_closed(struct s3_conn *c3cn) +{ + c3cn_conn_debug("c3cn 0x%p, state %u, flag 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + + c3cn_put_port(c3cn); + c3cn_release_offload_resources(c3cn); + c3cn_set_state(c3cn, C3CN_STATE_CLOSED); + cxgb3i_conn_closing(c3cn); +} + +/* + * CPL (Chelsio Protocol Language) defines a message passing interface between + * the host driver and T3 asic. + * The section below implments CPLs that related to iscsi tcp connection + * open/close/abort and data send/receive. + */ + +/* + * CPL connection active open request: host -> + */ +static unsigned int find_best_mtu(const struct t3c_data *d, unsigned short mtu) +{ + int i = 0; + + while (i < d->nmtus - 1 && d->mtus[i + 1] <= mtu) + ++i; + return i; +} + +static unsigned int select_mss(struct s3_conn *c3cn, unsigned int pmtu) +{ + unsigned int idx; + struct dst_entry *dst = c3cn->dst_cache; + struct t3cdev *cdev = c3cn->cdev; + const struct t3c_data *td = T3C_DATA(cdev); + u16 advmss = dst_metric(dst, RTAX_ADVMSS); + + if (advmss > pmtu - 40) + advmss = pmtu - 40; + if (advmss < td->mtus[0] - 40) + advmss = td->mtus[0] - 40; + idx = find_best_mtu(td, advmss + 40); + return idx; +} + +static inline int compute_wscale(int win) +{ + int wscale = 0; + while (wscale < 14 && (65535<<wscale) < win) + wscale++; + return wscale; +} + +static inline unsigned int calc_opt0h(struct s3_conn *c3cn) +{ + int wscale = compute_wscale(cxgb3_rcv_win); + return V_KEEP_ALIVE(1) | + F_TCAM_BYPASS | + V_WND_SCALE(wscale) | + V_MSS_IDX(c3cn->mss_idx); +} + +static inline unsigned int calc_opt0l(struct s3_conn *c3cn) +{ + return V_ULP_MODE(ULP_MODE_ISCSI) | + V_RCV_BUFSIZ(cxgb3_rcv_win>>10); +} + +static void make_act_open_req(struct s3_conn *c3cn, struct sk_buff *skb, + unsigned int atid, const struct l2t_entry *e) +{ + struct cpl_act_open_req *req; + + c3cn_conn_debug("c3cn 0x%p, atid 0x%x.\n", c3cn, atid); + + skb->priority = CPL_PRIORITY_SETUP; + req = (struct cpl_act_open_req *)__skb_put(skb, sizeof(*req)); + req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD)); + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, atid)); + req->local_port = c3cn->saddr.sin_port; + req->peer_port = c3cn->daddr.sin_port; + req->local_ip = c3cn->saddr.sin_addr.s_addr; + req->peer_ip = c3cn->daddr.sin_addr.s_addr; + req->opt0h = htonl(calc_opt0h(c3cn) | V_L2T_IDX(e->idx) | + V_TX_CHANNEL(e->smt_idx)); + req->opt0l = htonl(calc_opt0l(c3cn)); + req->params = 0; +} + +static void fail_act_open(struct s3_conn *c3cn, int errno) +{ + c3cn_conn_debug("c3cn 0x%p, state %u, flag 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + c3cn->err = errno; + c3cn_closed(c3cn); +} + +static void act_open_req_arp_failure(struct t3cdev *dev, struct sk_buff *skb) +{ + struct s3_conn *c3cn = (struct s3_conn *)skb->sk; + + c3cn_conn_debug("c3cn 0x%p, state %u.\n", c3cn, c3cn->state); + + c3cn_hold(c3cn); + spin_lock_bh(&c3cn->lock); + if (c3cn->state == C3CN_STATE_CONNECTING) + fail_act_open(c3cn, EHOSTUNREACH); + spin_unlock_bh(&c3cn->lock); + c3cn_put(c3cn); + __kfree_skb(skb); +} + +/* + * CPL connection close request: host -> + * + * Close a connection by sending a CPL_CLOSE_CON_REQ message and queue it to + * the write queue (i.e., after any unsent txt data). + */ +static void skb_entail(struct s3_conn *c3cn, struct sk_buff *skb, + int flags) +{ + CXGB3_SKB_CB(skb)->seq = c3cn->write_seq; + CXGB3_SKB_CB(skb)->flags = flags; + __skb_queue_tail(&c3cn->write_queue, skb); +} + +static void send_close_req(struct s3_conn *c3cn) +{ + struct sk_buff *skb = c3cn->cpl_close; + struct cpl_close_con_req *req = (struct cpl_close_con_req *)skb->head; + unsigned int tid = c3cn->tid; + + c3cn_conn_debug("c3cn 0x%p, state 0x%x, flag 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + + c3cn->cpl_close = NULL; + + req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_CLOSE_CON)); + req->wr.wr_lo = htonl(V_WR_TID(tid)); + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_CLOSE_CON_REQ, tid)); + req->rsvd = htonl(c3cn->write_seq); + + skb_entail(c3cn, skb, C3CB_FLAG_NO_APPEND); + if (c3cn->state != C3CN_STATE_CONNECTING) + c3cn_push_tx_frames(c3cn, 1); +} + +/* + * CPL connection abort request: host -> + * + * Send an ABORT_REQ message. Makes sure we do not send multiple ABORT_REQs + * for the same connection and also that we do not try to send a message + * after the connection has closed. + */ +static void abort_arp_failure(struct t3cdev *cdev, struct sk_buff *skb) +{ + struct cpl_abort_req *req = cplhdr(skb); + + c3cn_conn_debug("tdev 0x%p.\n", cdev); + + req->cmd = CPL_ABORT_NO_RST; + cxgb3_ofld_send(cdev, skb); +} + +static inline void c3cn_purge_write_queue(struct s3_conn *c3cn) +{ + struct sk_buff *skb; + + while ((skb = __skb_dequeue(&c3cn->write_queue))) + __kfree_skb(skb); +} + +static void send_abort_req(struct s3_conn *c3cn) +{ + struct sk_buff *skb = c3cn->cpl_abort_req; + struct cpl_abort_req *req; + unsigned int tid = c3cn->tid; + + if (unlikely(c3cn->state == C3CN_STATE_ABORTING) || !skb || + !c3cn->cdev) + return; + + c3cn_set_state(c3cn, C3CN_STATE_ABORTING); + + c3cn_conn_debug("c3cn 0x%p, flag ABORT_RPL + ABORT_SHUT.\n", c3cn); + + c3cn_set_flag(c3cn, C3CN_ABORT_RPL_PENDING); + + /* Purge the send queue so we don't send anything after an abort. */ + c3cn_purge_write_queue(c3cn); + + c3cn->cpl_abort_req = NULL; + req = (struct cpl_abort_req *)skb->head; + + skb->priority = CPL_PRIORITY_DATA; + set_arp_failure_handler(skb, abort_arp_failure); + + req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_HOST_ABORT_CON_REQ)); + req->wr.wr_lo = htonl(V_WR_TID(tid)); + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_ABORT_REQ, tid)); + req->rsvd0 = htonl(c3cn->snd_nxt); + req->rsvd1 = !c3cn_flag(c3cn, C3CN_TX_DATA_SENT); + req->cmd = CPL_ABORT_SEND_RST; + + l2t_send(c3cn->cdev, skb, c3cn->l2t); +} + +/* + * CPL connection abort reply: host -> + * + * Send an ABORT_RPL message in response of the ABORT_REQ received. + */ +static void send_abort_rpl(struct s3_conn *c3cn, int rst_status) +{ + struct sk_buff *skb = c3cn->cpl_abort_rpl; + struct cpl_abort_rpl *rpl = (struct cpl_abort_rpl *)skb->head; + + c3cn->cpl_abort_rpl = NULL; + + skb->priority = CPL_PRIORITY_DATA; + rpl->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_HOST_ABORT_CON_RPL)); + rpl->wr.wr_lo = htonl(V_WR_TID(c3cn->tid)); + OPCODE_TID(rpl) = htonl(MK_OPCODE_TID(CPL_ABORT_RPL, c3cn->tid)); + rpl->cmd = rst_status; + + cxgb3_ofld_send(c3cn->cdev, skb); +} + +/* + * CPL connection rx data ack: host -> + * Send RX credits through an RX_DATA_ACK CPL message. Returns the number of + * credits sent. + */ +static u32 send_rx_credits(struct s3_conn *c3cn, u32 credits, u32 dack) +{ + struct sk_buff *skb; + struct cpl_rx_data_ack *req; + + skb = alloc_skb(sizeof(*req), GFP_ATOMIC); + if (!skb) + return 0; + + req = (struct cpl_rx_data_ack *)__skb_put(skb, sizeof(*req)); + req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD)); + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_RX_DATA_ACK, c3cn->tid)); + req->credit_dack = htonl(dack | V_RX_CREDITS(credits)); + skb->priority = CPL_PRIORITY_ACK; + cxgb3_ofld_send(c3cn->cdev, skb); + return credits; +} + +/* + * CPL connection tx data: host -> + * + * Send iscsi PDU via TX_DATA CPL message. Returns the number of + * credits sent. + * Each TX_DATA consumes work request credit (wrs), so we need to keep track of + * how many we've used so far and how many are pending (i.e., yet ack'ed by T3). + */ + +/* + * For ULP connections HW may inserts digest bytes into the pdu. Those digest + * bytes are not sent by the host but are part of the TCP payload and therefore + * consume TCP sequence space. + */ +static const unsigned int cxgb3_ulp_extra_len[] = { 0, 4, 4, 8 }; +static inline unsigned int ulp_extra_len(const struct sk_buff *skb) +{ + return cxgb3_ulp_extra_len[skb_ulp_mode(skb) & 3]; +} + +static unsigned int wrlen __read_mostly; + +/* + * The number of WRs needed for an skb depends on the number of fragments + * in the skb and whether it has any payload in its main body. This maps the + * length of the gather list represented by an skb into the # of necessary WRs. + * + * The max. length of an skb is controlled by the max pdu size which is ~16K. + * Also, assume the min. fragment length is the sector size (512), then add + * extra fragment counts for iscsi bhs and payload padding. + */ +#define SKB_WR_LIST_SIZE (16384/512 + 3) +static unsigned int skb_wrs[SKB_WR_LIST_SIZE] __read_mostly; + +static void s3_init_wr_tab(unsigned int wr_len) +{ + int i; + + if (skb_wrs[1]) /* already initialized */ + return; + + for (i = 1; i < SKB_WR_LIST_SIZE; i++) { + int sgl_len = (3 * i) / 2 + (i & 1); + + sgl_len += 3; + skb_wrs[i] = (sgl_len <= wr_len + ? 1 : 1 + (sgl_len - 2) / (wr_len - 1)); + } + + wrlen = wr_len * 8; +} + +static inline void reset_wr_list(struct s3_conn *c3cn) +{ + c3cn->wr_pending_head = NULL; +} + +/* + * Add a WR to a connections's list of pending WRs. This is a singly-linked + * list of sk_buffs operating as a FIFO. The head is kept in wr_pending_head + * and the tail in wr_pending_tail. + */ +static inline void enqueue_wr(struct s3_conn *c3cn, + struct sk_buff *skb) +{ + skb_wr_data(skb) = NULL; + + /* + * We want to take an extra reference since both us and the driver + * need to free the packet before it's really freed. We know there's + * just one user currently so we use atomic_set rather than skb_get + * to avoid the atomic op. + */ + atomic_set(&skb->users, 2); + + if (!c3cn->wr_pending_head) + c3cn->wr_pending_head = skb; + else + skb_wr_data(skb) = skb; + c3cn->wr_pending_tail = skb; +} + +static inline struct sk_buff *peek_wr(const struct s3_conn *c3cn) +{ + return c3cn->wr_pending_head; +} + +static inline void free_wr_skb(struct sk_buff *skb) +{ + kfree_skb(skb); +} + +static inline struct sk_buff *dequeue_wr(struct s3_conn *c3cn) +{ + struct sk_buff *skb = c3cn->wr_pending_head; + + if (likely(skb)) { + /* Don't bother clearing the tail */ + c3cn->wr_pending_head = skb_wr_data(skb); + skb_wr_data(skb) = NULL; + } + return skb; +} + +static void purge_wr_queue(struct s3_conn *c3cn) +{ + struct sk_buff *skb; + while ((skb = dequeue_wr(c3cn)) != NULL) + free_wr_skb(skb); +} + +static inline void make_tx_data_wr(struct s3_conn *c3cn, struct sk_buff *skb, + int len) +{ + struct tx_data_wr *req; + + skb_reset_transport_header(skb); + req = (struct tx_data_wr *)__skb_push(skb, sizeof(*req)); + req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_TX_DATA)); + req->wr_lo = htonl(V_WR_TID(c3cn->tid)); + req->sndseq = htonl(c3cn->snd_nxt); + /* len includes the length of any HW ULP additions */ + req->len = htonl(len); + req->param = htonl(V_TX_PORT(c3cn->l2t->smt_idx)); + /* V_TX_ULP_SUBMODE sets both the mode and submode */ + req->flags = htonl(V_TX_ULP_SUBMODE(skb_ulp_mode(skb)) | + V_TX_SHOVE((skb_peek(&c3cn->write_queue) ? 0 : 1))); + + if (!c3cn_flag(c3cn, C3CN_TX_DATA_SENT)) { + req->flags |= htonl(V_TX_ACK_PAGES(2) | F_TX_INIT | + V_TX_CPU_IDX(c3cn->qset)); + /* Sendbuffer is in units of 32KB. */ + req->param |= htonl(V_TX_SNDBUF(cxgb3_snd_win >> 15)); + c3cn_set_flag(c3cn, C3CN_TX_DATA_SENT); + } +} + +/** + * c3cn_push_tx_frames -- start transmit + * @c3cn: the offloaded connection + * @req_completion: request wr_ack or not + * + * Prepends TX_DATA_WR or CPL_CLOSE_CON_REQ headers to buffers waiting in a + * connection's send queue and sends them on to T3. Must be called with the + * connection's lock held. Returns the amount of send buffer space that was + * freed as a result of sending queued data to T3. + */ +static void arp_failure_discard(struct t3cdev *cdev, struct sk_buff *skb) +{ + kfree_skb(skb); +} + +static int c3cn_push_tx_frames(struct s3_conn *c3cn, int req_completion) +{ + int total_size = 0; + struct sk_buff *skb; + struct t3cdev *cdev; + struct cxgb3i_sdev_data *cdata; + + if (unlikely(c3cn->state == C3CN_STATE_CONNECTING || + c3cn->state == C3CN_STATE_CLOSE_WAIT_1 || + c3cn->state == C3CN_STATE_ABORTING)) { + c3cn_tx_debug("c3cn 0x%p, in closing state %u.\n", + c3cn, c3cn->state); + return 0; + } + + cdev = c3cn->cdev; + cdata = CXGB3_SDEV_DATA(cdev); + + while (c3cn->wr_avail + && (skb = skb_peek(&c3cn->write_queue)) != NULL) { + int len = skb->len; /* length before skb_push */ + int frags = skb_shinfo(skb)->nr_frags + (len != skb->data_len); + int wrs_needed = skb_wrs[frags]; + + if (wrs_needed > 1 && len + sizeof(struct tx_data_wr) <= wrlen) + wrs_needed = 1; + + WARN_ON(frags >= SKB_WR_LIST_SIZE || wrs_needed < 1); + + if (c3cn->wr_avail < wrs_needed) { + c3cn_tx_debug("c3cn 0x%p, skb len %u/%u, frag %u, " + "wr %d < %u.\n", + c3cn, skb->len, skb->datalen, frags, + wrs_needed, c3cn->wr_avail); + break; + } + + __skb_unlink(skb, &c3cn->write_queue); + skb->priority = CPL_PRIORITY_DATA; + skb->csum = wrs_needed; /* remember this until the WR_ACK */ + c3cn->wr_avail -= wrs_needed; + c3cn->wr_unacked += wrs_needed; + enqueue_wr(c3cn, skb); + + if (likely(CXGB3_SKB_CB(skb)->flags & C3CB_FLAG_NEED_HDR)) { + len += ulp_extra_len(skb); + make_tx_data_wr(c3cn, skb, len); + c3cn->snd_nxt += len; + if ((req_completion + && c3cn->wr_unacked == wrs_needed) + || (CXGB3_SKB_CB(skb)->flags & C3CB_FLAG_COMPL) + || c3cn->wr_unacked >= c3cn->wr_max / 2) { + struct work_request_hdr *wr = cplhdr(skb); + + wr->wr_hi |= htonl(F_WR_COMPL); + c3cn->wr_unacked = 0; + } + CXGB3_SKB_CB(skb)->flags &= ~C3CB_FLAG_NEED_HDR; + } + + total_size += skb->truesize; + set_arp_failure_handler(skb, arp_failure_discard); + l2t_send(cdev, skb, c3cn->l2t); + } + return total_size; +} + +/* + * process_cpl_msg: -> host + * Top-level CPL message processing used by most CPL messages that + * pertain to connections. + */ +static inline void process_cpl_msg(void (*fn)(struct s3_conn *, + struct sk_buff *), + struct s3_conn *c3cn, + struct sk_buff *skb) +{ + spin_lock_bh(&c3cn->lock); + fn(c3cn, skb); + spin_unlock_bh(&c3cn->lock); +} + +/* + * process_cpl_msg_ref: -> host + * Similar to process_cpl_msg() but takes an extra connection reference around + * the call to the handler. Should be used if the handler may drop a + * connection reference. + */ +static inline void process_cpl_msg_ref(void (*fn) (struct s3_conn *, + struct sk_buff *), + struct s3_conn *c3cn, + struct sk_buff *skb) +{ + c3cn_hold(c3cn); + process_cpl_msg(fn, c3cn, skb); + c3cn_put(c3cn); +} + +/* + * Process a CPL_ACT_ESTABLISH message: -> host + * Updates connection state from an active establish CPL message. Runs with + * the connection lock held. + */ + +static inline void s3_free_atid(struct t3cdev *cdev, unsigned int tid) +{ + struct s3_conn *c3cn = cxgb3_free_atid(cdev, tid); + if (c3cn) + c3cn_put(c3cn); +} + +static void c3cn_established(struct s3_conn *c3cn, u32 snd_isn, + unsigned int opt) +{ + c3cn_conn_debug("c3cn 0x%p, state %u.\n", c3cn, c3cn->state); + + c3cn->write_seq = c3cn->snd_nxt = c3cn->snd_una = snd_isn; + + /* + * Causes the first RX_DATA_ACK to supply any Rx credits we couldn't + * pass through opt0. + */ + if (cxgb3_rcv_win > (M_RCV_BUFSIZ << 10)) + c3cn->rcv_wup -= cxgb3_rcv_win - (M_RCV_BUFSIZ << 10); + + dst_confirm(c3cn->dst_cache); + + smp_mb(); + + c3cn_set_state(c3cn, C3CN_STATE_ESTABLISHED); +} + +static void process_act_establish(struct s3_conn *c3cn, struct sk_buff *skb) +{ + struct cpl_act_establish *req = cplhdr(skb); + u32 rcv_isn = ntohl(req->rcv_isn); /* real RCV_ISN + 1 */ + + c3cn_conn_debug("c3cn 0x%p, state %u, flag 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + + if (unlikely(c3cn->state != C3CN_STATE_CONNECTING)) + cxgb3i_log_error("TID %u expected SYN_SENT, got EST., s %u\n", + c3cn->tid, c3cn->state); + + c3cn->copied_seq = c3cn->rcv_wup = c3cn->rcv_nxt = rcv_isn; + c3cn_established(c3cn, ntohl(req->snd_isn), ntohs(req->tcp_opt)); + + __kfree_skb(skb); + + if (unlikely(c3cn_flag(c3cn, C3CN_ACTIVE_CLOSE_NEEDED))) + /* upper layer has requested closing */ + send_abort_req(c3cn); + else if (c3cn_push_tx_frames(c3cn, 1)) + cxgb3i_conn_tx_open(c3cn); +} + +static int do_act_establish(struct t3cdev *cdev, struct sk_buff *skb, + void *ctx) +{ + struct cpl_act_establish *req = cplhdr(skb); + unsigned int tid = GET_TID(req); + unsigned int atid = G_PASS_OPEN_TID(ntohl(req->tos_tid)); + struct s3_conn *c3cn = ctx; + struct cxgb3i_sdev_data *cdata = CXGB3_SDEV_DATA(cdev); + + c3cn_conn_debug("rcv, tid 0x%x, c3cn 0x%p, s %u, f 0x%lx.\n", + tid, c3cn, c3cn->state, c3cn->flags); + + c3cn->tid = tid; + c3cn_hold(c3cn); + cxgb3_insert_tid(cdata->cdev, cdata->client, c3cn, tid); + s3_free_atid(cdev, atid); + + c3cn->qset = G_QNUM(ntohl(skb->csum)); + + process_cpl_msg(process_act_establish, c3cn, skb); + return 0; +} + +/* + * Process a CPL_ACT_OPEN_RPL message: -> host + * Handle active open failures. + */ +static int act_open_rpl_status_to_errno(int status) +{ + switch (status) { + case CPL_ERR_CONN_RESET: + return ECONNREFUSED; + case CPL_ERR_ARP_MISS: + return EHOSTUNREACH; + case CPL_ERR_CONN_TIMEDOUT: + return ETIMEDOUT; + case CPL_ERR_TCAM_FULL: + return ENOMEM; + case CPL_ERR_CONN_EXIST: + cxgb3i_log_error("ACTIVE_OPEN_RPL: 4-tuple in use\n"); + return EADDRINUSE; + default: + return EIO; + } +} + +static void act_open_retry_timer(unsigned long data) +{ + struct sk_buff *skb; + struct s3_conn *c3cn = (struct s3_conn *)data; + + c3cn_conn_debug("c3cn 0x%p, state %u.\n", c3cn, c3cn->state); + + spin_lock_bh(&c3cn->lock); + skb = alloc_skb(sizeof(struct cpl_act_open_req), GFP_ATOMIC); + if (!skb) + fail_act_open(c3cn, ENOMEM); + else { + skb->sk = (struct sock *)c3cn; + set_arp_failure_handler(skb, act_open_req_arp_failure); + make_act_open_req(c3cn, skb, c3cn->tid, c3cn->l2t); + l2t_send(c3cn->cdev, skb, c3cn->l2t); + } + spin_unlock_bh(&c3cn->lock); + c3cn_put(c3cn); +} + +static void process_act_open_rpl(struct s3_conn *c3cn, struct sk_buff *skb) +{ + struct cpl_act_open_rpl *rpl = cplhdr(skb); + + c3cn_conn_debug("c3cn 0x%p, state %u, flag 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + + if (rpl->status == CPL_ERR_CONN_EXIST && + c3cn->retry_timer.function != act_open_retry_timer) { + c3cn->retry_timer.function = act_open_retry_timer; + if (!mod_timer(&c3cn->retry_timer, jiffies + HZ / 2)) + c3cn_hold(c3cn); + } else + fail_act_open(c3cn, act_open_rpl_status_to_errno(rpl->status)); + __kfree_skb(skb); +} + +static int do_act_open_rpl(struct t3cdev *cdev, struct sk_buff *skb, void *ctx) +{ + struct s3_conn *c3cn = ctx; + struct cpl_act_open_rpl *rpl = cplhdr(skb); + + c3cn_conn_debug("rcv, status 0x%x, c3cn 0x%p, s %u, f 0x%lx.\n", + rpl->status, c3cn, c3cn->state, c3cn->flags); + + if (rpl->status != CPL_ERR_TCAM_FULL && + rpl->status != CPL_ERR_CONN_EXIST && + rpl->status != CPL_ERR_ARP_MISS) + cxgb3_queue_tid_release(cdev, GET_TID(rpl)); + + process_cpl_msg_ref(process_act_open_rpl, c3cn, skb); + return 0; +} + +/* + * Process PEER_CLOSE CPL messages: -> host + * Handle peer FIN. + */ +static void process_peer_close(struct s3_conn *c3cn, struct sk_buff *skb) +{ + c3cn_conn_debug("c3cn 0x%p, state %u, flag 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + + if (c3cn_flag(c3cn, C3CN_ABORT_RPL_PENDING)) + goto out; + + switch (c3cn->state) { + case C3CN_STATE_ESTABLISHED: + c3cn_set_state(c3cn, C3CN_STATE_PASSIVE_CLOSE); + break; + case C3CN_STATE_ACTIVE_CLOSE: + c3cn_set_state(c3cn, C3CN_STATE_CLOSE_WAIT_2); + break; + case C3CN_STATE_CLOSE_WAIT_1: + c3cn_closed(c3cn); + break; + case C3CN_STATE_ABORTING: + break; + default: + cxgb3i_log_error("%s: peer close, TID %u in bad state %u\n", + c3cn->cdev->name, c3cn->tid, c3cn->state); + } + + cxgb3i_conn_closing(c3cn); +out: + __kfree_skb(skb); +} + +static int do_peer_close(struct t3cdev *cdev, struct sk_buff *skb, void *ctx) +{ + struct s3_conn *c3cn = ctx; + + c3cn_conn_debug("rcv, c3cn 0x%p, s %u, f 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + process_cpl_msg_ref(process_peer_close, c3cn, skb); + return 0; +} + +/* + * Process CLOSE_CONN_RPL CPL message: -> host + * Process a peer ACK to our FIN. + */ +static void process_close_con_rpl(struct s3_conn *c3cn, struct sk_buff *skb) +{ + struct cpl_close_con_rpl *rpl = cplhdr(skb); + + c3cn_conn_debug("c3cn 0x%p, state %u, flag 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + + c3cn->snd_una = ntohl(rpl->snd_nxt) - 1; /* exclude FIN */ + + if (c3cn_flag(c3cn, C3CN_ABORT_RPL_PENDING)) + goto out; + + switch (c3cn->state) { + case C3CN_STATE_ACTIVE_CLOSE: + c3cn_set_state(c3cn, C3CN_STATE_CLOSE_WAIT_1); + break; + case C3CN_STATE_CLOSE_WAIT_1: + case C3CN_STATE_CLOSE_WAIT_2: + c3cn_closed(c3cn); + break; + case C3CN_STATE_ABORTING: + break; + default: + cxgb3i_log_error("%s: close_rpl, TID %u in bad state %u\n", + c3cn->cdev->name, c3cn->tid, c3cn->state); + } + +out: + kfree_skb(skb); +} + +static int do_close_con_rpl(struct t3cdev *cdev, struct sk_buff *skb, + void *ctx) +{ + struct s3_conn *c3cn = ctx; + + c3cn_conn_debug("rcv, c3cn 0x%p, s %u, f 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + + process_cpl_msg_ref(process_close_con_rpl, c3cn, skb); + return 0; +} + +/* + * Process ABORT_REQ_RSS CPL message: -> host + * Process abort requests. If we are waiting for an ABORT_RPL we ignore this + * request except that we need to reply to it. + */ + +static int abort_status_to_errno(struct s3_conn *c3cn, int abort_reason, + int *need_rst) +{ + switch (abort_reason) { + case CPL_ERR_BAD_SYN: /* fall through */ + case CPL_ERR_CONN_RESET: + return c3cn->state > C3CN_STATE_ESTABLISHED ? + EPIPE : ECONNRESET; + case CPL_ERR_XMIT_TIMEDOUT: + case CPL_ERR_PERSIST_TIMEDOUT: + case CPL_ERR_FINWAIT2_TIMEDOUT: + case CPL_ERR_KEEPALIVE_TIMEDOUT: + return ETIMEDOUT; + default: + return EIO; + } +} + +static void process_abort_req(struct s3_conn *c3cn, struct sk_buff *skb) +{ + int rst_status = CPL_ABORT_NO_RST; + const struct cpl_abort_req_rss *req = cplhdr(skb); + + c3cn_conn_debug("c3cn 0x%p, state %u, flag 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + + if (!c3cn_flag(c3cn, C3CN_ABORT_REQ_RCVD)) { + c3cn_set_flag(c3cn, C3CN_ABORT_REQ_RCVD); + c3cn_set_state(c3cn, C3CN_STATE_ABORTING); + __kfree_skb(skb); + return; + } + + c3cn_clear_flag(c3cn, C3CN_ABORT_REQ_RCVD); + send_abort_rpl(c3cn, rst_status); + + if (!c3cn_flag(c3cn, C3CN_ABORT_RPL_PENDING)) { + c3cn->err = + abort_status_to_errno(c3cn, req->status, &rst_status); + c3cn_closed(c3cn); + } +} + +static int do_abort_req(struct t3cdev *cdev, struct sk_buff *skb, void *ctx) +{ + const struct cpl_abort_req_rss *req = cplhdr(skb); + struct s3_conn *c3cn = ctx; + + c3cn_conn_debug("rcv, c3cn 0x%p, s 0x%x, f 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + + if (req->status == CPL_ERR_RTX_NEG_ADVICE || + req->status == CPL_ERR_PERSIST_NEG_ADVICE) { + __kfree_skb(skb); + return 0; + } + + process_cpl_msg_ref(process_abort_req, c3cn, skb); + return 0; +} + +/* + * Process ABORT_RPL_RSS CPL message: -> host + * Process abort replies. We only process these messages if we anticipate + * them as the coordination between SW and HW in this area is somewhat lacking + * and sometimes we get ABORT_RPLs after we are done with the connection that + * originated the ABORT_REQ. + */ +static void process_abort_rpl(struct s3_conn *c3cn, struct sk_buff *skb) +{ + c3cn_conn_debug("c3cn 0x%p, state %u, flag 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + + if (c3cn_flag(c3cn, C3CN_ABORT_RPL_PENDING)) { + if (!c3cn_flag(c3cn, C3CN_ABORT_RPL_RCVD)) + c3cn_set_flag(c3cn, C3CN_ABORT_RPL_RCVD); + else { + c3cn_clear_flag(c3cn, C3CN_ABORT_RPL_RCVD); + c3cn_clear_flag(c3cn, C3CN_ABORT_RPL_PENDING); + if (c3cn_flag(c3cn, C3CN_ABORT_REQ_RCVD)) + cxgb3i_log_error("%s tid %u, ABORT_RPL_RSS\n", + c3cn->cdev->name, c3cn->tid); + c3cn_closed(c3cn); + } + } + __kfree_skb(skb); +} + +static int do_abort_rpl(struct t3cdev *cdev, struct sk_buff *skb, void *ctx) +{ + struct cpl_abort_rpl_rss *rpl = cplhdr(skb); + struct s3_conn *c3cn = ctx; + + c3cn_conn_debug("rcv, status 0x%x, c3cn 0x%p, s %u, 0x%lx.\n", + rpl->status, c3cn, c3cn ? c3cn->state : 0, + c3cn ? c3cn->flags : 0UL); + + /* + * Ignore replies to post-close aborts indicating that the abort was + * requested too late. These connections are terminated when we get + * PEER_CLOSE or CLOSE_CON_RPL and by the time the abort_rpl_rss + * arrives the TID is either no longer used or it has been recycled. + */ + if (rpl->status == CPL_ERR_ABORT_FAILED) + goto discard; + + /* + * Sometimes we've already closed the connection, e.g., a post-close + * abort races with ABORT_REQ_RSS, the latter frees the connection + * expecting the ABORT_REQ will fail with CPL_ERR_ABORT_FAILED, + * but FW turns the ABORT_REQ into a regular one and so we get + * ABORT_RPL_RSS with status 0 and no connection. + */ + if (!c3cn) + goto discard; + + process_cpl_msg_ref(process_abort_rpl, c3cn, skb); + return 0; + +discard: + __kfree_skb(skb); + return 0; +} + +/* + * Process RX_ISCSI_HDR CPL message: -> host + * Handle received PDUs, the payload could be DDP'ed. If not, the payload + * follow after the bhs. + */ +static void process_rx_iscsi_hdr(struct s3_conn *c3cn, struct sk_buff *skb) +{ + struct cpl_iscsi_hdr *hdr_cpl = cplhdr(skb); + struct cpl_iscsi_hdr_norss data_cpl; + struct cpl_rx_data_ddp_norss ddp_cpl; + unsigned int hdr_len, data_len, status; + unsigned int len; + int err; + + if (unlikely(c3cn->state >= C3CN_STATE_PASSIVE_CLOSE)) { + if (c3cn->state != C3CN_STATE_ABORTING) + send_abort_req(c3cn); + __kfree_skb(skb); + return; + } + + CXGB3_SKB_CB(skb)->seq = ntohl(hdr_cpl->seq); + CXGB3_SKB_CB(skb)->flags = 0; + + skb_reset_transport_header(skb); + __skb_pull(skb, sizeof(struct cpl_iscsi_hdr)); + + len = hdr_len = ntohs(hdr_cpl->len); + /* msg coalesce is off or not enough data received */ + if (skb->len <= hdr_len) { + cxgb3i_log_error("%s: TID %u, ISCSI_HDR, skb len %u < %u.\n", + c3cn->cdev->name, c3cn->tid, + skb->len, hdr_len); + goto abort_conn; + } + + err = skb_copy_bits(skb, skb->len - sizeof(ddp_cpl), &ddp_cpl, + sizeof(ddp_cpl)); + if (err < 0) + goto abort_conn; + + skb_ulp_mode(skb) = ULP2_FLAG_DATA_READY; + skb_ulp_pdulen(skb) = ntohs(ddp_cpl.len); + skb_ulp_ddigest(skb) = ntohl(ddp_cpl.ulp_crc); + status = ntohl(ddp_cpl.ddp_status); + + c3cn_rx_debug("rx skb 0x%p, len %u, pdulen %u, ddp status 0x%x.\n", + skb, skb->len, skb_ulp_pdulen(skb), status); + + if (status & (1 << RX_DDP_STATUS_HCRC_SHIFT)) + skb_ulp_mode(skb) |= ULP2_FLAG_HCRC_ERROR; + if (status & (1 << RX_DDP_STATUS_DCRC_SHIFT)) + skb_ulp_mode(skb) |= ULP2_FLAG_DCRC_ERROR; + if (status & (1 << RX_DDP_STATUS_PAD_SHIFT)) + skb_ulp_mode(skb) |= ULP2_FLAG_PAD_ERROR; + + if (skb->len > (hdr_len + sizeof(ddp_cpl))) { + err = skb_copy_bits(skb, hdr_len, &data_cpl, sizeof(data_cpl)); + if (err < 0) + goto abort_conn; + data_len = ntohs(data_cpl.len); + len += sizeof(data_cpl) + data_len; + } else if (status & (1 << RX_DDP_STATUS_DDP_SHIFT)) + skb_ulp_mode(skb) |= ULP2_FLAG_DATA_DDPED; + + c3cn->rcv_nxt = ntohl(ddp_cpl.seq) + skb_ulp_pdulen(skb); + __pskb_trim(skb, len); + __skb_queue_tail(&c3cn->receive_queue, skb); + cxgb3i_conn_pdu_ready(c3cn); + + return; + +abort_conn: + send_abort_req(c3cn); + __kfree_skb(skb); +} + +static int do_iscsi_hdr(struct t3cdev *t3dev, struct sk_buff *skb, void *ctx) +{ + struct s3_conn *c3cn = ctx; + + process_cpl_msg(process_rx_iscsi_hdr, c3cn, skb); + return 0; +} + +/* + * Process TX_DATA_ACK CPL messages: -> host + * Process an acknowledgment of WR completion. Advance snd_una and send the + * next batch of work requests from the write queue. + */ +static void process_wr_ack(struct s3_conn *c3cn, struct sk_buff *skb) +{ + struct cpl_wr_ack *hdr = cplhdr(skb); + unsigned int credits = ntohs(hdr->credits); + u32 snd_una = ntohl(hdr->snd_una); + + c3cn->wr_avail += credits; + if (c3cn->wr_unacked > c3cn->wr_max - c3cn->wr_avail) + c3cn->wr_unacked = c3cn->wr_max - c3cn->wr_avail; + + while (credits) { + struct sk_buff *p = peek_wr(c3cn); + + if (unlikely(!p)) { + cxgb3i_log_error("%u WR_ACK credits for TID %u with " + "nothing pending, state %u\n", + credits, c3cn->tid, c3cn->state); + break; + } + if (unlikely(credits < p->csum)) { + p->csum -= credits; + break; + } else { + dequeue_wr(c3cn); + credits -= p->csum; + free_wr_skb(p); + } + } + + if (unlikely(before(snd_una, c3cn->snd_una))) + goto out_free; + + if (c3cn->snd_una != snd_una) { + c3cn->snd_una = snd_una; + dst_confirm(c3cn->dst_cache); + } + + if (skb_queue_len(&c3cn->write_queue) && c3cn_push_tx_frames(c3cn, 0)) + cxgb3i_conn_tx_open(c3cn); +out_free: + __kfree_skb(skb); +} + +static int do_wr_ack(struct t3cdev *cdev, struct sk_buff *skb, void *ctx) +{ + struct s3_conn *c3cn = ctx; + + process_cpl_msg(process_wr_ack, c3cn, skb); + return 0; +} + +/* + * for each connection, pre-allocate skbs needed for close/abort requests. So + * that we can service the request right away. + */ +static void c3cn_free_cpl_skbs(struct s3_conn *c3cn) +{ + if (c3cn->cpl_close) + kfree_skb(c3cn->cpl_close); + if (c3cn->cpl_abort_req) + kfree_skb(c3cn->cpl_abort_req); + if (c3cn->cpl_abort_rpl) + kfree_skb(c3cn->cpl_abort_rpl); +} + +static int c3cn_alloc_cpl_skbs(struct s3_conn *c3cn) +{ + c3cn->cpl_close = alloc_skb(sizeof(struct cpl_close_con_req), + GFP_KERNEL); + if (!c3cn->cpl_close) + return -ENOMEM; + skb_put(c3cn->cpl_close, sizeof(struct cpl_close_con_req)); + + c3cn->cpl_abort_req = alloc_skb(sizeof(struct cpl_abort_req), + GFP_KERNEL); + if (!c3cn->cpl_abort_req) + goto free_cpl_skbs; + skb_put(c3cn->cpl_abort_req, sizeof(struct cpl_abort_req)); + + c3cn->cpl_abort_rpl = alloc_skb(sizeof(struct cpl_abort_rpl), + GFP_KERNEL); + if (!c3cn->cpl_abort_rpl) + goto free_cpl_skbs; + skb_put(c3cn->cpl_abort_rpl, sizeof(struct cpl_abort_rpl)); + + return 0; + +free_cpl_skbs: + c3cn_free_cpl_skbs(c3cn); + return -ENOMEM; +} + +/** + * c3cn_release_offload_resources - release offload resource + * @c3cn: the offloaded iscsi tcp connection. + * Release resources held by an offload connection (TID, L2T entry, etc.) + */ +static void c3cn_release_offload_resources(struct s3_conn *c3cn) +{ + struct t3cdev *cdev = c3cn->cdev; + unsigned int tid = c3cn->tid; + + if (!cdev) + return; + + c3cn->qset = 0; + + c3cn_free_cpl_skbs(c3cn); + + if (c3cn->wr_avail != c3cn->wr_max) { + purge_wr_queue(c3cn); + reset_wr_list(c3cn); + } + + if (c3cn->l2t) { + l2t_release(L2DATA(cdev), c3cn->l2t); + c3cn->l2t = NULL; + } + + if (c3cn->state == C3CN_STATE_CONNECTING) /* we have ATID */ + s3_free_atid(cdev, tid); + else { /* we have TID */ + cxgb3_remove_tid(cdev, (void *)c3cn, tid); + c3cn_put(c3cn); + } + + c3cn->cdev = NULL; +} + +/** + * cxgb3i_c3cn_create - allocate and initialize an s3_conn structure + * returns the s3_conn structure allocated. + */ +struct s3_conn *cxgb3i_c3cn_create(void) +{ + struct s3_conn *c3cn; + + c3cn = kzalloc(sizeof(*c3cn), GFP_KERNEL); + if (!c3cn) + return NULL; + + /* pre-allocate close/abort cpl, so we don't need to wait for memory + when close/abort is requested. */ + if (c3cn_alloc_cpl_skbs(c3cn) < 0) + goto free_c3cn; + + c3cn_conn_debug("alloc c3cn 0x%p.\n", c3cn); + + c3cn->flags = 0; + spin_lock_init(&c3cn->lock); + atomic_set(&c3cn->refcnt, 1); + skb_queue_head_init(&c3cn->receive_queue); + skb_queue_head_init(&c3cn->write_queue); + setup_timer(&c3cn->retry_timer, NULL, (unsigned long)c3cn); + rwlock_init(&c3cn->callback_lock); + + return c3cn; + +free_c3cn: + kfree(c3cn); + return NULL; +} + +static void c3cn_active_close(struct s3_conn *c3cn) +{ + int data_lost; + int close_req = 0; + + c3cn_conn_debug("c3cn 0x%p, state %u, flag 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + + dst_confirm(c3cn->dst_cache); + + c3cn_hold(c3cn); + spin_lock_bh(&c3cn->lock); + + data_lost = skb_queue_len(&c3cn->receive_queue); + __skb_queue_purge(&c3cn->receive_queue); + + switch (c3cn->state) { + case C3CN_STATE_CLOSED: + case C3CN_STATE_ACTIVE_CLOSE: + case C3CN_STATE_CLOSE_WAIT_1: + case C3CN_STATE_CLOSE_WAIT_2: + case C3CN_STATE_ABORTING: + /* nothing need to be done */ + break; + case C3CN_STATE_CONNECTING: + /* defer until cpl_act_open_rpl or cpl_act_establish */ + c3cn_set_flag(c3cn, C3CN_ACTIVE_CLOSE_NEEDED); + break; + case C3CN_STATE_ESTABLISHED: + close_req = 1; + c3cn_set_state(c3cn, C3CN_STATE_ACTIVE_CLOSE); + break; + case C3CN_STATE_PASSIVE_CLOSE: + close_req = 1; + c3cn_set_state(c3cn, C3CN_STATE_CLOSE_WAIT_2); + break; + } + + if (close_req) { + if (data_lost) + /* Unread data was tossed, zap the connection. */ + send_abort_req(c3cn); + else + send_close_req(c3cn); + } + + spin_unlock_bh(&c3cn->lock); + c3cn_put(c3cn); +} + +/** + * cxgb3i_c3cn_release - close and release an iscsi tcp connection and any + * resource held + * @c3cn: the iscsi tcp connection + */ +void cxgb3i_c3cn_release(struct s3_conn *c3cn) +{ + c3cn_conn_debug("c3cn 0x%p, s %u, f 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + if (likely(c3cn->state != C3CN_STATE_CONNECTING)) + c3cn_active_close(c3cn); + else + c3cn_set_flag(c3cn, C3CN_ACTIVE_CLOSE_NEEDED); + c3cn_put(c3cn); +} + +static int is_cxgb3_dev(struct net_device *dev) +{ + struct cxgb3i_sdev_data *cdata; + + write_lock(&cdata_rwlock); + list_for_each_entry(cdata, &cdata_list, list) { + struct adap_ports *ports = &cdata->ports; + int i; + + for (i = 0; i < ports->nports; i++) + if (dev == ports->lldevs[i]) { + write_unlock(&cdata_rwlock); + return 1; + } + } + write_unlock(&cdata_rwlock); + return 0; +} + +/** + * cxgb3_egress_dev - return the cxgb3 egress device + * @root_dev: the root device anchoring the search + * @c3cn: the connection used to determine egress port in bonding mode + * @context: in bonding mode, indicates a connection set up or failover + * + * Return egress device or NULL if the egress device isn't one of our ports. + */ +static struct net_device *cxgb3_egress_dev(struct net_device *root_dev, + struct s3_conn *c3cn, + int context) +{ + while (root_dev) { + if (root_dev->priv_flags & IFF_802_1Q_VLAN) + root_dev = vlan_dev_real_dev(root_dev); + else if (is_cxgb3_dev(root_dev)) + return root_dev; + else + return NULL; + } + return NULL; +} + +static struct rtable *find_route(__be32 saddr, __be32 daddr, + __be16 sport, __be16 dport) +{ + struct rtable *rt; + struct flowi fl = { + .oif = 0, + .nl_u = { + .ip4_u = { + .daddr = daddr, + .saddr = saddr, + .tos = 0 } }, + .proto = IPPROTO_TCP, + .uli_u = { + .ports = { + .sport = sport, + .dport = dport } } }; + + if (ip_route_output_flow(&init_net, &rt, &fl, NULL, 0)) + return NULL; + return rt; +} + +/* + * Assign offload parameters to some connection fields. + */ +static void init_offload_conn(struct s3_conn *c3cn, + struct t3cdev *cdev, + struct dst_entry *dst) +{ + BUG_ON(c3cn->cdev != cdev); + c3cn->wr_max = c3cn->wr_avail = T3C_DATA(cdev)->max_wrs; + c3cn->wr_unacked = 0; + c3cn->mss_idx = select_mss(c3cn, dst_mtu(dst)); + + reset_wr_list(c3cn); +} + +static int initiate_act_open(struct s3_conn *c3cn, struct net_device *dev) +{ + struct cxgb3i_sdev_data *cdata = NDEV2CDATA(dev); + struct t3cdev *cdev = cdata->cdev; + struct dst_entry *dst = c3cn->dst_cache; + struct sk_buff *skb; + + c3cn_conn_debug("c3cn 0x%p, state %u, flag 0x%lx.\n", + c3cn, c3cn->state, c3cn->flags); + /* + * Initialize connection data. Note that the flags and ULP mode are + * initialized higher up ... + */ + c3cn->dev = dev; + c3cn->cdev = cdev; + c3cn->tid = cxgb3_alloc_atid(cdev, cdata->client, c3cn); + if (c3cn->tid < 0) + goto out_err; + + c3cn->qset = 0; + c3cn->l2t = t3_l2t_get(cdev, dst->neighbour, dev); + if (!c3cn->l2t) + goto free_tid; + + skb = alloc_skb(sizeof(struct cpl_act_open_req), GFP_KERNEL); + if (!skb) + goto free_l2t; + + skb->sk = (struct sock *)c3cn; + set_arp_failure_handler(skb, act_open_req_arp_failure); + + c3cn_hold(c3cn); + + init_offload_conn(c3cn, cdev, dst); + c3cn->err = 0; + + make_act_open_req(c3cn, skb, c3cn->tid, c3cn->l2t); + l2t_send(cdev, skb, c3cn->l2t); + return 0; + +free_l2t: + l2t_release(L2DATA(cdev), c3cn->l2t); +free_tid: + s3_free_atid(cdev, c3cn->tid); + c3cn->tid = 0; +out_err: + return -1; +} + + +/** + * cxgb3i_c3cn_connect - initiates an iscsi tcp connection to a given address + * @c3cn: the iscsi tcp connection + * @usin: destination address + * + * return 0 if active open request is sent, < 0 otherwise. + */ +int cxgb3i_c3cn_connect(struct s3_conn *c3cn, struct sockaddr_in *usin) +{ + struct rtable *rt; + struct net_device *dev; + struct cxgb3i_sdev_data *cdata; + struct t3cdev *cdev; + __be32 sipv4; + int err; + + if (usin->sin_family != AF_INET) + return -EAFNOSUPPORT; + + c3cn->daddr.sin_port = usin->sin_port; + c3cn->daddr.sin_addr.s_addr = usin->sin_addr.s_addr; + + rt = find_route(c3cn->saddr.sin_addr.s_addr, + c3cn->daddr.sin_addr.s_addr, + c3cn->saddr.sin_port, + c3cn->daddr.sin_port); + if (rt == NULL) { + c3cn_conn_debug("NO route to 0x%x, port %u.\n", + c3cn->daddr.sin_addr.s_addr, + ntohs(c3cn->daddr.sin_port)); + return -ENETUNREACH; + } + + if (rt->rt_flags & (RTCF_MULTICAST | RTCF_BROADCAST)) { + c3cn_conn_debug("multi-cast route to 0x%x, port %u.\n", + c3cn->daddr.sin_addr.s_addr, + ntohs(c3cn->daddr.sin_port)); + ip_rt_put(rt); + return -ENETUNREACH; + } + + if (!c3cn->saddr.sin_addr.s_addr) + c3cn->saddr.sin_addr.s_addr = rt->rt_src; + + /* now commit destination to connection */ + c3cn->dst_cache = &rt->u.dst; + + /* try to establish an offloaded connection */ + dev = cxgb3_egress_dev(c3cn->dst_cache->dev, c3cn, 0); + if (dev == NULL) { + c3cn_conn_debug("c3cn 0x%p, egress dev NULL.\n", c3cn); + return -ENETUNREACH; + } + cdata = NDEV2CDATA(dev); + cdev = cdata->cdev; + + /* get a source port if one hasn't been provided */ + err = c3cn_get_port(c3cn, cdata); + if (err) + return err; + + c3cn_conn_debug("c3cn 0x%p get port %u.\n", + c3cn, ntohs(c3cn->saddr.sin_port)); + + sipv4 = cxgb3i_get_private_ipv4addr(dev); + if (!sipv4) { + c3cn_conn_debug("c3cn 0x%p, iscsi ip not configured.\n", c3cn); + sipv4 = c3cn->saddr.sin_addr.s_addr; + cxgb3i_set_private_ipv4addr(dev, sipv4); + } else + c3cn->saddr.sin_addr.s_addr = sipv4; + + c3cn_conn_debug("c3cn 0x%p, %u.%u.%u.%u,%u-%u.%u.%u.%u,%u SYN_SENT.\n", + c3cn, NIPQUAD(c3cn->saddr.sin_addr.s_addr), + ntohs(c3cn->saddr.sin_port), + NIPQUAD(c3cn->daddr.sin_addr.s_addr), + ntohs(c3cn->daddr.sin_port)); + + c3cn_set_state(c3cn, C3CN_STATE_CONNECTING); + if (!initiate_act_open(c3cn, dev)) + return 0; + + /* + * If we get here, we don't have an offload connection so simply + * return a failure. + */ + err = -ENOTSUPP; + + /* + * This trashes the connection and releases the local port, + * if necessary. + */ + c3cn_conn_debug("c3cn 0x%p -> CLOSED.\n", c3cn); + c3cn_set_state(c3cn, C3CN_STATE_CLOSED); + ip_rt_put(rt); + c3cn_put_port(c3cn); + c3cn->daddr.sin_port = 0; + return err; +} + +/** + * cxgb3i_c3cn_rx_credits - ack received tcp data. + * @c3cn: iscsi tcp connection + * @copied: # of bytes processed + * + * Called after some received data has been read. It returns RX credits + * to the HW for the amount of data processed. + */ +void cxgb3i_c3cn_rx_credits(struct s3_conn *c3cn, int copied) +{ + struct t3cdev *cdev; + int must_send; + u32 credits, dack = 0; + + if (c3cn->state != C3CN_STATE_ESTABLISHED) + return; + + credits = c3cn->copied_seq - c3cn->rcv_wup; + if (unlikely(!credits)) + return; + + cdev = c3cn->cdev; + + if (unlikely(cxgb3_rx_credit_thres == 0)) + return; + + dack = F_RX_DACK_CHANGE | V_RX_DACK_MODE(1); + + /* + * For coalescing to work effectively ensure the receive window has + * at least 16KB left. + */ + must_send = credits + 16384 >= cxgb3_rcv_win; + + if (must_send || credits >= cxgb3_rx_credit_thres) + c3cn->rcv_wup += send_rx_credits(c3cn, credits, dack); +} + +/** + * cxgb3i_c3cn_send_pdus - send the skbs containing iscsi pdus + * @c3cn: iscsi tcp connection + * @skb: skb contains the iscsi pdu + * + * Add a list of skbs to a connection send queue. The skbs must comply with + * the max size limit of the device and have a headroom of at least + * TX_HEADER_LEN bytes. + * Return # of bytes queued. + */ +int cxgb3i_c3cn_send_pdus(struct s3_conn *c3cn, struct sk_buff *skb) +{ + struct sk_buff *next; + int err, copied = 0; + + spin_lock_bh(&c3cn->lock); + + if (c3cn->state != C3CN_STATE_ESTABLISHED) { + c3cn_tx_debug("c3cn 0x%p, not in est. state %u.\n", + c3cn, c3cn->state); + err = -EAGAIN; + goto out_err; + } + + err = -EPIPE; + if (c3cn->err) { + c3cn_tx_debug("c3cn 0x%p, err %d.\n", c3cn, c3cn->err); + goto out_err; + } + + while (skb) { + int frags = skb_shinfo(skb)->nr_frags + + (skb->len != skb->data_len); + + if (unlikely(skb_headroom(skb) < TX_HEADER_LEN)) { + c3cn_tx_debug("c3cn 0x%p, skb head.\n", c3cn); + err = -EINVAL; + goto out_err; + } + + if (frags >= SKB_WR_LIST_SIZE) { + cxgb3i_log_error("c3cn 0x%p, tx frags %d, len %u,%u.\n", + c3cn, skb_shinfo(skb)->nr_frags, + skb->len, skb->data_len); + err = -EINVAL; + goto out_err; + } + + next = skb->next; + skb->next = NULL; + skb_entail(c3cn, skb, C3CB_FLAG_NO_APPEND | C3CB_FLAG_NEED_HDR); + copied += skb->len; + c3cn->write_seq += skb->len + ulp_extra_len(skb); + skb = next; + } +done: + if (likely(skb_queue_len(&c3cn->write_queue))) + c3cn_push_tx_frames(c3cn, 1); + spin_unlock_bh(&c3cn->lock); + return copied; + +out_err: + if (copied == 0 && err == -EPIPE) + copied = c3cn->err ? c3cn->err : -EPIPE; + goto done; +} + +static void sdev_data_cleanup(struct cxgb3i_sdev_data *cdata) +{ + struct adap_ports *ports = &cdata->ports; + int i; + + for (i = 0; i < ports->nports; i++) + NDEV2CDATA(ports->lldevs[i]) = NULL; + cxgb3i_free_big_mem(cdata); +} + +void cxgb3i_sdev_cleanup(void) +{ + struct cxgb3i_sdev_data *cdata; + + write_lock(&cdata_rwlock); + list_for_each_entry(cdata, &cdata_list, list) { + list_del(&cdata->list); + sdev_data_cleanup(cdata); + } + write_unlock(&cdata_rwlock); +} + +int cxgb3i_sdev_init(cxgb3_cpl_handler_func *cpl_handlers) +{ + cpl_handlers[CPL_ACT_ESTABLISH] = do_act_establish; + cpl_handlers[CPL_ACT_OPEN_RPL] = do_act_open_rpl; + cpl_handlers[CPL_PEER_CLOSE] = do_peer_close; + cpl_handlers[CPL_ABORT_REQ_RSS] = do_abort_req; + cpl_handlers[CPL_ABORT_RPL_RSS] = do_abort_rpl; + cpl_handlers[CPL_CLOSE_CON_RPL] = do_close_con_rpl; + cpl_handlers[CPL_TX_DMA_ACK] = do_wr_ack; + cpl_handlers[CPL_ISCSI_HDR] = do_iscsi_hdr; + + if (cxgb3_max_connect > CXGB3I_MAX_CONN) + cxgb3_max_connect = CXGB3I_MAX_CONN; + return 0; +} + +/** + * cxgb3i_sdev_add - allocate and initialize resources for each adapter found + * @cdev: t3cdev adapter + * @client: cxgb3 driver client + */ +void cxgb3i_sdev_add(struct t3cdev *cdev, struct cxgb3_client *client) +{ + struct cxgb3i_sdev_data *cdata; + struct ofld_page_info rx_page_info; + unsigned int wr_len; + int mapsize = DIV_ROUND_UP(cxgb3_max_connect, + 8 * sizeof(unsigned long)); + int i; + + cdata = cxgb3i_alloc_big_mem(sizeof(*cdata) + mapsize, GFP_KERNEL); + if (!cdata) + return; + + if (cdev->ctl(cdev, GET_WR_LEN, &wr_len) < 0 || + cdev->ctl(cdev, GET_PORTS, &cdata->ports) < 0 || + cdev->ctl(cdev, GET_RX_PAGE_INFO, &rx_page_info) < 0) + goto free_cdata; + + s3_init_wr_tab(wr_len); + + INIT_LIST_HEAD(&cdata->list); + cdata->cdev = cdev; + cdata->client = client; + + for (i = 0; i < cdata->ports.nports; i++) + NDEV2CDATA(cdata->ports.lldevs[i]) = cdata; + + write_lock(&cdata_rwlock); + list_add_tail(&cdata->list, &cdata_list); + write_unlock(&cdata_rwlock); + + return; + +free_cdata: + cxgb3i_free_big_mem(cdata); +} + +/** + * cxgb3i_sdev_remove - free the allocated resources for the adapter + * @cdev: t3cdev adapter + */ +void cxgb3i_sdev_remove(struct t3cdev *cdev) +{ + struct cxgb3i_sdev_data *cdata = CXGB3_SDEV_DATA(cdev); + + write_lock(&cdata_rwlock); + list_del(&cdata->list); + write_unlock(&cdata_rwlock); + + sdev_data_cleanup(cdata); +} diff --git a/drivers/scsi/cxgb3i/cxgb3i_offload.h b/drivers/scsi/cxgb3i/cxgb3i_offload.h new file mode 100644 index 0000000..d231569 --- /dev/null +++ b/drivers/scsi/cxgb3i/cxgb3i_offload.h @@ -0,0 +1,231 @@ +/* + * cxgb3i_offload.h: Chelsio S3xx iscsi offloaded tcp connection management + * + * Copyright (C) 2003-2008 Chelsio Communications. All rights reserved. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the LICENSE file included in this + * release for licensing terms and conditions. + * + * Written by: Dimitris Michailidis (dm@chelsio.com) + * Karen Xie (kxie@chelsio.com) + */ + +#ifndef _CXGB3I_OFFLOAD_H +#define _CXGB3I_OFFLOAD_H + +#include <linux/skbuff.h> +#include <net/tcp.h> + +#include "common.h" +#include "adapter.h" +#include "t3cdev.h" +#include "cxgb3_offload.h" + +#define cxgb3i_log_error(fmt...) printk(KERN_ERR "cxgb3i: ERR! " fmt) +#define cxgb3i_log_warn(fmt...) printk(KERN_WARNING "cxgb3i: WARN! " fmt) +#define cxgb3i_log_info(fmt...) printk(KERN_INFO "cxgb3i: " fmt) +#define cxgb3i_log_debug(fmt, args...) \ + printk(KERN_INFO "cxgb3i: %s - " fmt, __func__ , ## args) + +/** + * struct s3_conn - an iscsi tcp connection structure + * + * @dev: net device of with connection + * @cdev: adapter t3cdev for net device + * @flags: see c3cn_flags below + * @tid: connection id assigned by the h/w + * @qset: queue set used by connection + * @mss_idx: Maximum Segment Size table index + * @l2t: ARP resolution entry for offload packets + * @wr_max: maximum in-flight writes + * @wr_avail: number of writes available + * @wr_unacked: writes since last request for completion notification + * @wr_pending_head: head of pending write queue + * @wr_pending_tail: tail of pending write queue + * @cpl_close: skb for cpl_close_req + * @cpl_abort_req: skb for cpl_abort_req + * @cpl_abort_rpl: skb for cpl_abort_rpl + * @lock: connection status lock + * @refcnt: reference count on connection + * @state: connection state + * @saddr: source ip/port address + * @daddr: destination ip/port address + * @dst_cache: reference to destination route + * @receive_queue: received PDUs + * @write_queue: un-pushed pending writes + * @retry_timer: retry timer for various operations + * @err: connection error status + * @callback_lock: lock for opaque user context + * @user_data: opaque user context + * @rcv_nxt: next receive seq. # + * @copied_seq: head of yet unread data + * @rcv_wup: rcv_nxt on last window update sent + * @snd_nxt: next sequence we send + * @snd_una: first byte we want an ack for + * @write_seq: tail+1 of data held in send buffer + */ +struct s3_conn { + struct net_device *dev; + struct t3cdev *cdev; + unsigned long flags; + int tid; + int qset; + int mss_idx; + struct l2t_entry *l2t; + int wr_max; + int wr_avail; + int wr_unacked; + struct sk_buff *wr_pending_head; + struct sk_buff *wr_pending_tail; + struct sk_buff *cpl_close; + struct sk_buff *cpl_abort_req; + struct sk_buff *cpl_abort_rpl; + spinlock_t lock; + atomic_t refcnt; + volatile unsigned int state; + struct sockaddr_in saddr; + struct sockaddr_in daddr; + struct dst_entry *dst_cache; + struct sk_buff_head receive_queue; + struct sk_buff_head write_queue; + struct timer_list retry_timer; + int err; + rwlock_t callback_lock; + void *user_data; + + u32 rcv_nxt; + u32 copied_seq; + u32 rcv_wup; + u32 snd_nxt; + u32 snd_una; + u32 write_seq; +}; + +/* + * connection state + */ +enum conn_states { + C3CN_STATE_CONNECTING = 1, + C3CN_STATE_ESTABLISHED, + C3CN_STATE_ACTIVE_CLOSE, + C3CN_STATE_PASSIVE_CLOSE, + C3CN_STATE_CLOSE_WAIT_1, + C3CN_STATE_CLOSE_WAIT_2, + C3CN_STATE_ABORTING, + C3CN_STATE_CLOSED, +}; + +static inline unsigned int c3cn_is_closing(const struct s3_conn *c3cn) +{ + return c3cn->state >= C3CN_STATE_ACTIVE_CLOSE; +} +static inline unsigned int c3cn_is_established(const struct s3_conn *c3cn) +{ + return c3cn->state == C3CN_STATE_ESTABLISHED; +} + +/* + * Connection flags -- many to track some close related events. + */ +enum c3cn_flags { + C3CN_ABORT_RPL_RCVD, /* received one ABORT_RPL_RSS message */ + C3CN_ABORT_REQ_RCVD, /* received one ABORT_REQ_RSS message */ + C3CN_ABORT_RPL_PENDING, /* expecting an abort reply */ + C3CN_TX_DATA_SENT, /* already sent a TX_DATA WR */ + C3CN_ACTIVE_CLOSE_NEEDED, /* need to be closed */ +}; + +/** + * cxgb3i_sdev_data - Per adapter data. + * Linked off of each Ethernet device port on the adapter. + * Also available via the t3cdev structure since we have pointers to our port + * net_device's there ... + * + * @list: list head to link elements + * @cdev: t3cdev adapter + * @client: CPL client pointer + * @ports: array of adapter ports + * @sport_map_next: next index into the port map + * @sport_map: source port map + */ +struct cxgb3i_sdev_data { + struct list_head list; + struct t3cdev *cdev; + struct cxgb3_client *client; + struct adap_ports ports; + unsigned int sport_map_next; + unsigned long sport_map[0]; +}; +#define NDEV2CDATA(ndev) (*(struct cxgb3i_sdev_data **)&(ndev)->ec_ptr) +#define CXGB3_SDEV_DATA(cdev) NDEV2CDATA((cdev)->lldev) + +void cxgb3i_sdev_cleanup(void); +int cxgb3i_sdev_init(cxgb3_cpl_handler_func *); +void cxgb3i_sdev_add(struct t3cdev *, struct cxgb3_client *); +void cxgb3i_sdev_remove(struct t3cdev *); + +struct s3_conn *cxgb3i_c3cn_create(void); +int cxgb3i_c3cn_connect(struct s3_conn *, struct sockaddr_in *); +void cxgb3i_c3cn_rx_credits(struct s3_conn *, int); +int cxgb3i_c3cn_send_pdus(struct s3_conn *, struct sk_buff *); +void cxgb3i_c3cn_release(struct s3_conn *); + +/** + * cxgb3_skb_cb - control block for received pdu state and ULP mode management. + * + * @flag: see C3CB_FLAG_* below + * @ulp_mode: ULP mode/submode of sk_buff + * @seq: tcp sequence number + * @ddigest: pdu data digest + * @pdulen: recovered pdu length + * @wr_data: scratch area for tx wr + */ +struct cxgb3_skb_cb { + __u8 flags; + __u8 ulp_mode; + __u32 seq; + __u32 ddigest; + __u32 pdulen; + struct sk_buff *wr_data; +}; + +#define CXGB3_SKB_CB(skb) ((struct cxgb3_skb_cb *)&((skb)->cb[0])) + +#define skb_ulp_mode(skb) (CXGB3_SKB_CB(skb)->ulp_mode) +#define skb_ulp_ddigest(skb) (CXGB3_SKB_CB(skb)->ddigest) +#define skb_ulp_pdulen(skb) (CXGB3_SKB_CB(skb)->pdulen) +#define skb_wr_data(skb) (CXGB3_SKB_CB(skb)->wr_data) + +enum c3cb_flags { + C3CB_FLAG_NEED_HDR = 1 << 0, /* packet needs a TX_DATA_WR header */ + C3CB_FLAG_NO_APPEND = 1 << 1, /* don't grow this skb */ + C3CB_FLAG_COMPL = 1 << 2, /* request WR completion */ +}; + +/** + * sge_opaque_hdr - + * Opaque version of structure the SGE stores at skb->head of TX_DATA packets + * and for which we must reserve space. + */ +struct sge_opaque_hdr { + void *dev; + dma_addr_t addr[MAX_SKB_FRAGS + 1]; +}; + +/* for TX: a skb must have a headroom of at least TX_HEADER_LEN bytes */ +#define TX_HEADER_LEN \ + (sizeof(struct tx_data_wr) + sizeof(struct sge_opaque_hdr)) + +/* + * get and set private ip for iscsi traffic + */ +#define cxgb3i_get_private_ipv4addr(ndev) \ + (((struct port_info *)(netdev_priv(ndev)))->iscsi_ipv4addr) +#define cxgb3i_set_private_ipv4addr(ndev, addr) \ + (((struct port_info *)(netdev_priv(ndev)))->iscsi_ipv4addr) = addr + +/* max. connections per adapter */ +#define CXGB3I_MAX_CONN 16384 +#endif /* _CXGB3_OFFLOAD_H */ diff --git a/drivers/scsi/cxgb3i/cxgb3i_pdu.c b/drivers/scsi/cxgb3i/cxgb3i_pdu.c new file mode 100644 index 0000000..ce7ce8c --- /dev/null +++ b/drivers/scsi/cxgb3i/cxgb3i_pdu.c @@ -0,0 +1,402 @@ +/* + * cxgb3i_pdu.c: Chelsio S3xx iSCSI driver. + * + * Copyright (c) 2008 Chelsio Communications, Inc. + * Copyright (c) 2008 Mike Christie + * Copyright (c) 2008 Red Hat, Inc. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + * + * Written by: Karen Xie (kxie@chelsio.com) + */ + +#include <linux/skbuff.h> +#include <linux/crypto.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_host.h> + +#include "cxgb3i.h" +#include "cxgb3i_pdu.h" + +#ifdef __DEBUG_CXGB3I_RX__ +#define cxgb3i_rx_debug cxgb3i_log_debug +#else +#define cxgb3i_rx_debug(fmt...) +#endif + +#ifdef __DEBUG_CXGB3I_TX__ +#define cxgb3i_tx_debug cxgb3i_log_debug +#else +#define cxgb3i_tx_debug(fmt...) +#endif + +static struct page *pad_page; + +/* + * pdu receive, interact with libiscsi_tcp + */ +static inline int read_pdu_skb(struct iscsi_conn *conn, struct sk_buff *skb, + unsigned int offset, int offloaded) +{ + int status = 0; + int bytes_read; + + bytes_read = iscsi_tcp_recv_skb(conn, skb, offset, offloaded, &status); + switch (status) { + case ISCSI_TCP_CONN_ERR: + return -EIO; + case ISCSI_TCP_SUSPENDED: + /* no transfer - just have caller flush queue */ + return bytes_read; + case ISCSI_TCP_SKB_DONE: + /* + * pdus should always fit in the skb and we should get + * segment done notifcation. + */ + iscsi_conn_printk(KERN_ERR, conn, "Invalid pdu or skb."); + return -EFAULT; + case ISCSI_TCP_SEGMENT_DONE: + return bytes_read; + default: + iscsi_conn_printk(KERN_ERR, conn, "Invalid iscsi_tcp_recv_skb " + "status %d\n", status); + return -EINVAL; + } +} + +static int cxgb3i_conn_read_pdu_skb(struct iscsi_conn *conn, + struct sk_buff *skb) +{ + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + bool offloaded = 0; + unsigned int offset; + int rc; + + cxgb3i_rx_debug("conn 0x%p, skb 0x%p, len %u, flag 0x%x.\n", + conn, skb, skb->len, skb_ulp_mode(skb)); + + if (!iscsi_tcp_recv_segment_is_hdr(tcp_conn)) { + iscsi_conn_failure(conn, ISCSI_ERR_PROTO); + return -EIO; + } + + if (conn->hdrdgst_en && (skb_ulp_mode(skb) & ULP2_FLAG_HCRC_ERROR)) { + iscsi_conn_failure(conn, ISCSI_ERR_HDR_DGST); + return -EIO; + } + + if (conn->datadgst_en && (skb_ulp_mode(skb) & ULP2_FLAG_DCRC_ERROR)) { + iscsi_conn_failure(conn, ISCSI_ERR_DATA_DGST); + return -EIO; + } + + /* iscsi hdr */ + rc = read_pdu_skb(conn, skb, 0, 0); + if (rc <= 0) + return rc; + + if (iscsi_tcp_recv_segment_is_hdr(tcp_conn)) + return 0; + + offset = rc; + if (conn->hdrdgst_en) + offset += ISCSI_DIGEST_SIZE; + + /* iscsi data */ + if (skb_ulp_mode(skb) & ULP2_FLAG_DATA_DDPED) { + cxgb3i_rx_debug("skb 0x%p, opcode 0x%x, data %u, ddp'ed, " + "itt 0x%x.\n", + skb, + tcp_conn->in.hdr->opcode & ISCSI_OPCODE_MASK, + tcp_conn->in.datalen, + ntohl(tcp_conn->in.hdr->itt)); + offloaded = 1; + } else { + cxgb3i_rx_debug("skb 0x%p, opcode 0x%x, data %u, NOT ddp'ed, " + "itt 0x%x.\n", + skb, + tcp_conn->in.hdr->opcode & ISCSI_OPCODE_MASK, + tcp_conn->in.datalen, + ntohl(tcp_conn->in.hdr->itt)); + offset += sizeof(struct cpl_iscsi_hdr_norss); + } + + rc = read_pdu_skb(conn, skb, offset, offloaded); + if (rc < 0) + return rc; + else + return 0; +} + +/* + * pdu transmit, interact with libiscsi_tcp + */ +static inline void tx_skb_setmode(struct sk_buff *skb, int hcrc, int dcrc) +{ + u8 submode = 0; + + if (hcrc) + submode |= 1; + if (dcrc) + submode |= 2; + skb_ulp_mode(skb) = (ULP_MODE_ISCSI << 4) | submode; +} + +void cxgb3i_conn_cleanup_task(struct iscsi_task *task) +{ + struct iscsi_tcp_task *tcp_task = task->dd_data; + + /* never reached the xmit task callout */ + if (tcp_task->dd_data) + kfree_skb(tcp_task->dd_data); + tcp_task->dd_data = NULL; + + /* MNC - Do we need a check in case this is called but + * cxgb3i_conn_alloc_pdu has never been called on the task */ + cxgb3i_release_itt(task, task->hdr_itt); + iscsi_tcp_cleanup_task(task); +} + +/* + * We do not support ahs yet + */ +int cxgb3i_conn_alloc_pdu(struct iscsi_task *task, u8 opcode) +{ + struct iscsi_tcp_task *tcp_task = task->dd_data; + struct sk_buff *skb; + + task->hdr = NULL; + /* always allocate rooms for AHS */ + skb = alloc_skb(sizeof(struct iscsi_hdr) + ISCSI_MAX_AHS_SIZE + + TX_HEADER_LEN, GFP_ATOMIC); + if (!skb) + return -ENOMEM; + + cxgb3i_tx_debug("task 0x%p, opcode 0x%x, skb 0x%p.\n", + task, opcode, skb); + + tcp_task->dd_data = skb; + skb_reserve(skb, TX_HEADER_LEN); + task->hdr = (struct iscsi_hdr *)skb->data; + task->hdr_max = sizeof(struct iscsi_hdr); + + /* data_out uses scsi_cmd's itt */ + if (opcode != ISCSI_OP_SCSI_DATA_OUT) + cxgb3i_reserve_itt(task, &task->hdr->itt); + + return 0; +} + +int cxgb3i_conn_init_pdu(struct iscsi_task *task, unsigned int offset, + unsigned int count) +{ + struct iscsi_tcp_task *tcp_task = task->dd_data; + struct sk_buff *skb = tcp_task->dd_data; + struct iscsi_conn *conn = task->conn; + struct page *pg; + unsigned int datalen = count; + int i, padlen = iscsi_padding(count); + skb_frag_t *frag; + + cxgb3i_tx_debug("task 0x%p,0x%p, offset %u, count %u, skb 0x%p.\n", + task, task->sc, offset, count, skb); + + skb_put(skb, task->hdr_len); + tx_skb_setmode(skb, conn->hdrdgst_en, datalen ? conn->datadgst_en : 0); + if (!count) + return 0; + + if (task->sc) { + struct scatterlist *sg; + struct scsi_data_buffer *sdb; + unsigned int sgoffset = offset; + struct page *sgpg; + unsigned int sglen; + + sdb = scsi_out(task->sc); + sg = sdb->table.sgl; + + for_each_sg(sdb->table.sgl, sg, sdb->table.nents, i) { + cxgb3i_tx_debug("sg %d, page 0x%p, len %u offset %u\n", + i, sg_page(sg), sg->length, sg->offset); + + if (sgoffset < sg->length) + break; + sgoffset -= sg->length; + } + sgpg = sg_page(sg); + sglen = sg->length - sgoffset; + + do { + int j = skb_shinfo(skb)->nr_frags; + unsigned int copy; + + if (!sglen) { + sg = sg_next(sg); + sgpg = sg_page(sg); + sgoffset = 0; + sglen = sg->length; + ++i; + } + copy = min(sglen, datalen); + if (j && skb_can_coalesce(skb, j, sgpg, + sg->offset + sgoffset)) { + skb_shinfo(skb)->frags[j - 1].size += copy; + } else { + get_page(sgpg); + skb_fill_page_desc(skb, j, sgpg, + sg->offset + sgoffset, copy); + } + sgoffset += copy; + sglen -= copy; + datalen -= copy; + } while (datalen); + } else { + pg = virt_to_page(task->data); + + while (datalen) { + i = skb_shinfo(skb)->nr_frags; + frag = &skb_shinfo(skb)->frags[i]; + + get_page(pg); + frag->page = pg; + frag->page_offset = 0; + frag->size = min((unsigned int)PAGE_SIZE, datalen); + + skb_shinfo(skb)->nr_frags++; + datalen -= frag->size; + pg++; + } + } + + if (padlen) { + i = skb_shinfo(skb)->nr_frags; + frag = &skb_shinfo(skb)->frags[i]; + frag->page = pad_page; + frag->page_offset = 0; + frag->size = padlen; + skb_shinfo(skb)->nr_frags++; + } + + datalen = count + padlen; + skb->data_len += datalen; + skb->truesize += datalen; + skb->len += datalen; + return 0; +} + +int cxgb3i_conn_xmit_pdu(struct iscsi_task *task) +{ + struct iscsi_tcp_task *tcp_task = task->dd_data; + struct sk_buff *skb = tcp_task->dd_data; + struct iscsi_tcp_conn *tcp_conn = task->conn->dd_data; + struct cxgb3i_conn *cconn = tcp_conn->dd_data; + unsigned int datalen; + int err; + + if (!skb) + return 0; + + datalen = skb->data_len; + tcp_task->dd_data = NULL; + err = cxgb3i_c3cn_send_pdus(cconn->cep->c3cn, skb); + cxgb3i_tx_debug("task 0x%p, skb 0x%p, len %u/%u, rv %d.\n", + task, skb, skb->len, skb->data_len, err); + if (err > 0) { + int pdulen = err; + + if (task->conn->hdrdgst_en) + pdulen += ISCSI_DIGEST_SIZE; + if (datalen && task->conn->datadgst_en) + pdulen += ISCSI_DIGEST_SIZE; + + task->conn->txdata_octets += pdulen; + return 0; + } + + if (err < 0 && err != -EAGAIN) { + kfree_skb(skb); + cxgb3i_tx_debug("itt 0x%x, skb 0x%p, len %u/%u, xmit err %d.\n", + task->itt, skb, skb->len, skb->data_len, err); + iscsi_conn_printk(KERN_ERR, task->conn, "xmit err %d.\n", err); + iscsi_conn_failure(task->conn, ISCSI_ERR_XMIT_FAILED); + return err; + } + /* reset skb to send when we are called again */ + tcp_task->dd_data = skb; + return -EAGAIN; +} + +int cxgb3i_pdu_init(void) +{ + pad_page = alloc_page(GFP_KERNEL); + if (!pad_page) + return -ENOMEM; + memset(page_address(pad_page), 0, PAGE_SIZE); + return 0; +} + +void cxgb3i_pdu_cleanup(void) +{ + if (pad_page) { + __free_page(pad_page); + pad_page = NULL; + } +} + +void cxgb3i_conn_pdu_ready(struct s3_conn *c3cn) +{ + struct sk_buff *skb; + unsigned int read = 0; + struct iscsi_conn *conn = c3cn->user_data; + int err = 0; + + cxgb3i_rx_debug("cn 0x%p.\n", c3cn); + + read_lock(&c3cn->callback_lock); + if (unlikely(!conn || conn->suspend_rx)) { + cxgb3i_rx_debug("conn 0x%p, id %d, suspend_rx %lu!\n", + conn, conn ? conn->id : 0xFF, + conn ? conn->suspend_rx : 0xFF); + read_unlock(&c3cn->callback_lock); + return; + } + skb = skb_peek(&c3cn->receive_queue); + while (!err && skb) { + __skb_unlink(skb, &c3cn->receive_queue); + read += skb_ulp_pdulen(skb); + err = cxgb3i_conn_read_pdu_skb(conn, skb); + __kfree_skb(skb); + skb = skb_peek(&c3cn->receive_queue); + } + read_unlock(&c3cn->callback_lock); + if (c3cn) { + c3cn->copied_seq += read; + cxgb3i_c3cn_rx_credits(c3cn, read); + } + conn->rxdata_octets += read; +} + +void cxgb3i_conn_tx_open(struct s3_conn *c3cn) +{ + struct iscsi_conn *conn = c3cn->user_data; + + cxgb3i_tx_debug("cn 0x%p.\n", c3cn); + if (conn) { + cxgb3i_tx_debug("cn 0x%p, cid %d.\n", c3cn, conn->id); + scsi_queue_work(conn->session->host, &conn->xmitwork); + } +} + +void cxgb3i_conn_closing(struct s3_conn *c3cn) +{ + struct iscsi_conn *conn; + + read_lock(&c3cn->callback_lock); + conn = c3cn->user_data; + if (conn && c3cn->state != C3CN_STATE_ESTABLISHED) + iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); + read_unlock(&c3cn->callback_lock); +} diff --git a/drivers/scsi/cxgb3i/cxgb3i_pdu.h b/drivers/scsi/cxgb3i/cxgb3i_pdu.h new file mode 100644 index 0000000..a3f685c --- /dev/null +++ b/drivers/scsi/cxgb3i/cxgb3i_pdu.h @@ -0,0 +1,59 @@ +/* + * cxgb3i_ulp2.h: Chelsio S3xx iSCSI driver. + * + * Copyright (c) 2008 Chelsio Communications, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + * + * Written by: Karen Xie (kxie@chelsio.com) + */ + +#ifndef __CXGB3I_ULP2_PDU_H__ +#define __CXGB3I_ULP2_PDU_H__ + +struct cpl_iscsi_hdr_norss { + union opcode_tid ot; + u16 pdu_len_ddp; + u16 len; + u32 seq; + u16 urg; + u8 rsvd; + u8 status; +}; + +struct cpl_rx_data_ddp_norss { + union opcode_tid ot; + u16 urg; + u16 len; + u32 seq; + u32 nxt_seq; + u32 ulp_crc; + u32 ddp_status; +}; + +#define RX_DDP_STATUS_IPP_SHIFT 27 /* invalid pagepod */ +#define RX_DDP_STATUS_TID_SHIFT 26 /* tid mismatch */ +#define RX_DDP_STATUS_COLOR_SHIFT 25 /* color mismatch */ +#define RX_DDP_STATUS_OFFSET_SHIFT 24 /* offset mismatch */ +#define RX_DDP_STATUS_ULIMIT_SHIFT 23 /* ulimit error */ +#define RX_DDP_STATUS_TAG_SHIFT 22 /* tag mismatch */ +#define RX_DDP_STATUS_DCRC_SHIFT 21 /* dcrc error */ +#define RX_DDP_STATUS_HCRC_SHIFT 20 /* hcrc error */ +#define RX_DDP_STATUS_PAD_SHIFT 19 /* pad error */ +#define RX_DDP_STATUS_PPP_SHIFT 18 /* pagepod parity error */ +#define RX_DDP_STATUS_LLIMIT_SHIFT 17 /* llimit error */ +#define RX_DDP_STATUS_DDP_SHIFT 16 /* ddp'able */ +#define RX_DDP_STATUS_PMM_SHIFT 15 /* pagepod mismatch */ + +#define ULP2_FLAG_DATA_READY 0x1 +#define ULP2_FLAG_DATA_DDPED 0x2 +#define ULP2_FLAG_HCRC_ERROR 0x10 +#define ULP2_FLAG_DCRC_ERROR 0x20 +#define ULP2_FLAG_PAD_ERROR 0x40 + +void cxgb3i_conn_closing(struct s3_conn *); +void cxgb3i_conn_pdu_ready(struct s3_conn *c3cn); +void cxgb3i_conn_tx_open(struct s3_conn *c3cn); +#endif diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index 3d50cab..5366476 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -24,6 +24,7 @@ #include <scsi/scsi_dh.h> #define RDAC_NAME "rdac" +#define RDAC_RETRY_COUNT 5 /* * LSI mode page stuff @@ -386,6 +387,7 @@ static int check_ownership(struct scsi_device *sdev, struct rdac_dh_data *h) struct c9_inquiry *inqp; h->lun_state = RDAC_LUN_UNOWNED; + h->state = RDAC_STATE_ACTIVE; err = submit_inquiry(sdev, 0xC9, sizeof(struct c9_inquiry), h); if (err == SCSI_DH_OK) { inqp = &h->inq.c9; @@ -477,21 +479,27 @@ static int send_mode_select(struct scsi_device *sdev, struct rdac_dh_data *h) { struct request *rq; struct request_queue *q = sdev->request_queue; - int err = SCSI_DH_RES_TEMP_UNAVAIL; + int err, retry_cnt = RDAC_RETRY_COUNT; +retry: + err = SCSI_DH_RES_TEMP_UNAVAIL; rq = rdac_failover_get(sdev, h); if (!rq) goto done; - sdev_printk(KERN_INFO, sdev, "queueing MODE_SELECT command.\n"); + sdev_printk(KERN_INFO, sdev, "%s MODE_SELECT command.\n", + (retry_cnt == RDAC_RETRY_COUNT) ? "queueing" : "retrying"); err = blk_execute_rq(q, NULL, rq, 1); - if (err != SCSI_DH_OK) + blk_put_request(rq); + if (err != SCSI_DH_OK) { err = mode_select_handle_sense(sdev, h->sense); + if (err == SCSI_DH_RETRY && retry_cnt--) + goto retry; + } if (err == SCSI_DH_OK) h->state = RDAC_STATE_ACTIVE; - blk_put_request(rq); done: return err; } @@ -594,6 +602,8 @@ static const struct scsi_dh_devlist rdac_dev_list[] = { {"SUN", "LCSM100_F"}, {"DELL", "MD3000"}, {"DELL", "MD3000i"}, + {"LSI", "INF-01-00"}, + {"ENGENIO", "INF-01-00"}, {NULL, NULL}, }; diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c index a73a6bb..976cdd5 100644 --- a/drivers/scsi/eata.c +++ b/drivers/scsi/eata.c @@ -1626,8 +1626,15 @@ static void map_dma(unsigned int i, struct hostdata *ha) cpp->sense_len = SCSI_SENSE_BUFFERSIZE; - count = scsi_dma_map(SCpnt); - BUG_ON(count < 0); + if (!scsi_sg_count(SCpnt)) { + cpp->data_len = 0; + return; + } + + count = pci_map_sg(ha->pdev, scsi_sglist(SCpnt), scsi_sg_count(SCpnt), + pci_dir); + BUG_ON(!count); + scsi_for_each_sg(SCpnt, sg, count, k) { cpp->sglist[k].address = H2DEV(sg_dma_address(sg)); cpp->sglist[k].num_bytes = H2DEV(sg_dma_len(sg)); @@ -1655,7 +1662,9 @@ static void unmap_dma(unsigned int i, struct hostdata *ha) pci_unmap_single(ha->pdev, DEV2H(cpp->sense_addr), DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE); - scsi_dma_unmap(SCpnt); + if (scsi_sg_count(SCpnt)) + pci_unmap_sg(ha->pdev, scsi_sglist(SCpnt), scsi_sg_count(SCpnt), + pci_dir); if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL; diff --git a/drivers/scsi/eata_pio.c b/drivers/scsi/eata_pio.c index 952505c..152dd15 100644 --- a/drivers/scsi/eata_pio.c +++ b/drivers/scsi/eata_pio.c @@ -14,8 +14,8 @@ * neuffer@goofy.zdv.uni-mainz.de * * a.arnold@kfa-juelich.de * * * - * Updated 2002 by Alan Cox <alan@redhat.com> for Linux * - * 2.5.x and the newer locking and error handling * + * Updated 2002 by Alan Cox <alan@lxorguk.ukuu.org.uk> for * + * Linux 2.5.x and the newer locking and error handling * * * * This program is free software; you can redistribute it * * and/or modify it under the terms of the GNU General * diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index 62a4618..a680e18 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -1453,7 +1453,7 @@ static void esp_msgin_sdtr(struct esp *esp, struct esp_target_data *tp) offset = 0; if (offset) { - int rounded_up, one_clock; + int one_clock; if (period > esp->max_period) { period = offset = 0; @@ -1463,9 +1463,7 @@ static void esp_msgin_sdtr(struct esp *esp, struct esp_target_data *tp) goto do_reject; one_clock = esp->ccycle / 1000; - rounded_up = (period << 2); - rounded_up = (rounded_up + one_clock - 1) / one_clock; - stp = rounded_up; + stp = DIV_ROUND_UP(period << 2, one_clock); if (stp && esp->rev >= FAS236) { if (stp >= 50) stp--; diff --git a/drivers/scsi/fcoe/Makefile b/drivers/scsi/fcoe/Makefile new file mode 100644 index 0000000..b78da06 --- /dev/null +++ b/drivers/scsi/fcoe/Makefile @@ -0,0 +1,8 @@ +# $Id: Makefile + +obj-$(CONFIG_FCOE) += fcoe.o + +fcoe-y := \ + libfcoe.o \ + fcoe_sw.o \ + fc_transport_fcoe.o diff --git a/drivers/scsi/fcoe/fc_transport_fcoe.c b/drivers/scsi/fcoe/fc_transport_fcoe.c new file mode 100644 index 0000000..bf7fe6f --- /dev/null +++ b/drivers/scsi/fcoe/fc_transport_fcoe.c @@ -0,0 +1,446 @@ +/* + * Copyright(c) 2007 - 2008 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#include <linux/pci.h> +#include <scsi/libfcoe.h> +#include <scsi/fc_transport_fcoe.h> + +/* internal fcoe transport */ +struct fcoe_transport_internal { + struct fcoe_transport *t; + struct net_device *netdev; + struct list_head list; +}; + +/* fcoe transports list and its lock */ +static LIST_HEAD(fcoe_transports); +static DEFINE_MUTEX(fcoe_transports_lock); + +/** + * fcoe_transport_default - returns ptr to the default transport fcoe_sw + **/ +struct fcoe_transport *fcoe_transport_default(void) +{ + return &fcoe_sw_transport; +} + +/** + * fcoe_transport_to_pcidev - get the pci dev from a netdev + * @netdev: the netdev that pci dev will be retrived from + * + * Returns: NULL or the corrsponding pci_dev + **/ +struct pci_dev *fcoe_transport_pcidev(const struct net_device *netdev) +{ + if (!netdev->dev.parent) + return NULL; + return to_pci_dev(netdev->dev.parent); +} + +/** + * fcoe_transport_device_lookup - find out netdev is managed by the + * transport + * assign a transport to a device + * @netdev: the netdev the transport to be attached to + * + * This will look for existing offload driver, if not found, it falls back to + * the default sw hba (fcoe_sw) as its fcoe transport. + * + * Returns: 0 for success + **/ +static struct fcoe_transport_internal *fcoe_transport_device_lookup( + struct fcoe_transport *t, struct net_device *netdev) +{ + struct fcoe_transport_internal *ti; + + /* assign the transpor to this device */ + mutex_lock(&t->devlock); + list_for_each_entry(ti, &t->devlist, list) { + if (ti->netdev == netdev) { + mutex_unlock(&t->devlock); + return ti; + } + } + mutex_unlock(&t->devlock); + return NULL; +} +/** + * fcoe_transport_device_add - assign a transport to a device + * @netdev: the netdev the transport to be attached to + * + * This will look for existing offload driver, if not found, it falls back to + * the default sw hba (fcoe_sw) as its fcoe transport. + * + * Returns: 0 for success + **/ +static int fcoe_transport_device_add(struct fcoe_transport *t, + struct net_device *netdev) +{ + struct fcoe_transport_internal *ti; + + ti = fcoe_transport_device_lookup(t, netdev); + if (ti) { + printk(KERN_DEBUG "fcoe_transport_device_add:" + "device %s is already added to transport %s\n", + netdev->name, t->name); + return -EEXIST; + } + /* allocate an internal struct to host the netdev and the list */ + ti = kzalloc(sizeof(*ti), GFP_KERNEL); + if (!ti) + return -ENOMEM; + + ti->t = t; + ti->netdev = netdev; + INIT_LIST_HEAD(&ti->list); + dev_hold(ti->netdev); + + mutex_lock(&t->devlock); + list_add(&ti->list, &t->devlist); + mutex_unlock(&t->devlock); + + printk(KERN_DEBUG "fcoe_transport_device_add:" + "device %s added to transport %s\n", + netdev->name, t->name); + + return 0; +} + +/** + * fcoe_transport_device_remove - remove a device from its transport + * @netdev: the netdev the transport to be attached to + * + * this removes the device from the transport so the given transport will + * not manage this device any more + * + * Returns: 0 for success + **/ +static int fcoe_transport_device_remove(struct fcoe_transport *t, + struct net_device *netdev) +{ + struct fcoe_transport_internal *ti; + + ti = fcoe_transport_device_lookup(t, netdev); + if (!ti) { + printk(KERN_DEBUG "fcoe_transport_device_remove:" + "device %s is not managed by transport %s\n", + netdev->name, t->name); + return -ENODEV; + } + mutex_lock(&t->devlock); + list_del(&ti->list); + mutex_unlock(&t->devlock); + printk(KERN_DEBUG "fcoe_transport_device_remove:" + "device %s removed from transport %s\n", + netdev->name, t->name); + dev_put(ti->netdev); + kfree(ti); + return 0; +} + +/** + * fcoe_transport_device_remove_all - remove all from transport devlist + * + * this removes the device from the transport so the given transport will + * not manage this device any more + * + * Returns: 0 for success + **/ +static void fcoe_transport_device_remove_all(struct fcoe_transport *t) +{ + struct fcoe_transport_internal *ti, *tmp; + + mutex_lock(&t->devlock); + list_for_each_entry_safe(ti, tmp, &t->devlist, list) { + list_del(&ti->list); + kfree(ti); + } + mutex_unlock(&t->devlock); +} + +/** + * fcoe_transport_match - use the bus device match function to match the hw + * @t: the fcoe transport + * @netdev: + * + * This function is used to check if the givne transport wants to manage the + * input netdev. if the transports implements the match function, it will be + * called, o.w. we just compare the pci vendor and device id. + * + * Returns: true for match up + **/ +static bool fcoe_transport_match(struct fcoe_transport *t, + struct net_device *netdev) +{ + /* match transport by vendor and device id */ + struct pci_dev *pci; + + pci = fcoe_transport_pcidev(netdev); + + if (pci) { + printk(KERN_DEBUG "fcoe_transport_match:" + "%s:%x:%x -- %s:%x:%x\n", + t->name, t->vendor, t->device, + netdev->name, pci->vendor, pci->device); + + /* if transport supports match */ + if (t->match) + return t->match(netdev); + + /* else just compare the vendor and device id: pci only */ + return (t->vendor == pci->vendor) && (t->device == pci->device); + } + return false; +} + +/** + * fcoe_transport_lookup - check if the transport is already registered + * @t: the transport to be looked up + * + * This compares the parent device (pci) vendor and device id + * + * Returns: NULL if not found + * + * TODO - return default sw transport if no other transport is found + **/ +static struct fcoe_transport *fcoe_transport_lookup( + struct net_device *netdev) +{ + struct fcoe_transport *t; + + mutex_lock(&fcoe_transports_lock); + list_for_each_entry(t, &fcoe_transports, list) { + if (fcoe_transport_match(t, netdev)) { + mutex_unlock(&fcoe_transports_lock); + return t; + } + } + mutex_unlock(&fcoe_transports_lock); + + printk(KERN_DEBUG "fcoe_transport_lookup:" + "use default transport for %s\n", netdev->name); + return fcoe_transport_default(); +} + +/** + * fcoe_transport_register - adds a fcoe transport to the fcoe transports list + * @t: ptr to the fcoe transport to be added + * + * Returns: 0 for success + **/ +int fcoe_transport_register(struct fcoe_transport *t) +{ + struct fcoe_transport *tt; + + /* TODO - add fcoe_transport specific initialization here */ + mutex_lock(&fcoe_transports_lock); + list_for_each_entry(tt, &fcoe_transports, list) { + if (tt == t) { + mutex_unlock(&fcoe_transports_lock); + return -EEXIST; + } + } + list_add_tail(&t->list, &fcoe_transports); + mutex_unlock(&fcoe_transports_lock); + + mutex_init(&t->devlock); + INIT_LIST_HEAD(&t->devlist); + + printk(KERN_DEBUG "fcoe_transport_register:%s\n", t->name); + + return 0; +} +EXPORT_SYMBOL_GPL(fcoe_transport_register); + +/** + * fcoe_transport_unregister - remove the tranport fro the fcoe transports list + * @t: ptr to the fcoe transport to be removed + * + * Returns: 0 for success + **/ +int fcoe_transport_unregister(struct fcoe_transport *t) +{ + struct fcoe_transport *tt, *tmp; + + mutex_lock(&fcoe_transports_lock); + list_for_each_entry_safe(tt, tmp, &fcoe_transports, list) { + if (tt == t) { + list_del(&t->list); + mutex_unlock(&fcoe_transports_lock); + fcoe_transport_device_remove_all(t); + printk(KERN_DEBUG "fcoe_transport_unregister:%s\n", + t->name); + return 0; + } + } + mutex_unlock(&fcoe_transports_lock); + return -ENODEV; +} +EXPORT_SYMBOL_GPL(fcoe_transport_unregister); + +/* + * fcoe_load_transport_driver - load an offload driver by alias name + * @netdev: the target net device + * + * Requests for an offload driver module as the fcoe transport, if fails, it + * falls back to use the SW HBA (fcoe_sw) as its transport + * + * TODO - + * 1. supports only PCI device + * 2. needs fix for VLAn and bonding + * 3. pure hw fcoe hba may not have netdev + * + * Returns: 0 for success + **/ +int fcoe_load_transport_driver(struct net_device *netdev) +{ + struct pci_dev *pci; + struct device *dev = netdev->dev.parent; + + if (fcoe_transport_lookup(netdev)) { + /* load default transport */ + printk(KERN_DEBUG "fcoe: already loaded transport for %s\n", + netdev->name); + return -EEXIST; + } + + pci = to_pci_dev(dev); + if (dev->bus != &pci_bus_type) { + printk(KERN_DEBUG "fcoe: support noly PCI device\n"); + return -ENODEV; + } + printk(KERN_DEBUG "fcoe: loading driver fcoe-pci-0x%04x-0x%04x\n", + pci->vendor, pci->device); + + return request_module("fcoe-pci-0x%04x-0x%04x", + pci->vendor, pci->device); + +} +EXPORT_SYMBOL_GPL(fcoe_load_transport_driver); + +/** + * fcoe_transport_attach - load transport to fcoe + * @netdev: the netdev the transport to be attached to + * + * This will look for existing offload driver, if not found, it falls back to + * the default sw hba (fcoe_sw) as its fcoe transport. + * + * Returns: 0 for success + **/ +int fcoe_transport_attach(struct net_device *netdev) +{ + struct fcoe_transport *t; + + /* find the corresponding transport */ + t = fcoe_transport_lookup(netdev); + if (!t) { + printk(KERN_DEBUG "fcoe_transport_attach" + ":no transport for %s:use %s\n", + netdev->name, t->name); + return -ENODEV; + } + /* add to the transport */ + if (fcoe_transport_device_add(t, netdev)) { + printk(KERN_DEBUG "fcoe_transport_attach" + ":failed to add %s to tramsport %s\n", + netdev->name, t->name); + return -EIO; + } + /* transport create function */ + if (t->create) + t->create(netdev); + + printk(KERN_DEBUG "fcoe_transport_attach:transport %s for %s\n", + t->name, netdev->name); + return 0; +} +EXPORT_SYMBOL_GPL(fcoe_transport_attach); + +/** + * fcoe_transport_release - unload transport from fcoe + * @netdev: the net device on which fcoe is to be released + * + * Returns: 0 for success + **/ +int fcoe_transport_release(struct net_device *netdev) +{ + struct fcoe_transport *t; + + /* find the corresponding transport */ + t = fcoe_transport_lookup(netdev); + if (!t) { + printk(KERN_DEBUG "fcoe_transport_release:" + "no transport for %s:use %s\n", + netdev->name, t->name); + return -ENODEV; + } + /* remove the device from the transport */ + if (fcoe_transport_device_remove(t, netdev)) { + printk(KERN_DEBUG "fcoe_transport_release:" + "failed to add %s to tramsport %s\n", + netdev->name, t->name); + return -EIO; + } + /* transport destroy function */ + if (t->destroy) + t->destroy(netdev); + + printk(KERN_DEBUG "fcoe_transport_release:" + "device %s dettached from transport %s\n", + netdev->name, t->name); + + return 0; +} +EXPORT_SYMBOL_GPL(fcoe_transport_release); + +/** + * fcoe_transport_init - initializes fcoe transport layer + * + * This prepares for the fcoe transport layer + * + * Returns: none + **/ +int __init fcoe_transport_init(void) +{ + INIT_LIST_HEAD(&fcoe_transports); + mutex_init(&fcoe_transports_lock); + return 0; +} + +/** + * fcoe_transport_exit - cleans up the fcoe transport layer + * This cleans up the fcoe transport layer. removing any transport on the list, + * note that the transport destroy func is not called here. + * + * Returns: none + **/ +int __exit fcoe_transport_exit(void) +{ + struct fcoe_transport *t, *tmp; + + mutex_lock(&fcoe_transports_lock); + list_for_each_entry_safe(t, tmp, &fcoe_transports, list) { + list_del(&t->list); + mutex_unlock(&fcoe_transports_lock); + fcoe_transport_device_remove_all(t); + mutex_lock(&fcoe_transports_lock); + } + mutex_unlock(&fcoe_transports_lock); + return 0; +} diff --git a/drivers/scsi/fcoe/fcoe_sw.c b/drivers/scsi/fcoe/fcoe_sw.c new file mode 100644 index 0000000..dc4cd5e --- /dev/null +++ b/drivers/scsi/fcoe/fcoe_sw.c @@ -0,0 +1,494 @@ +/* + * Copyright(c) 2007 - 2008 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#include <linux/module.h> +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/spinlock.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/if_vlan.h> +#include <net/rtnetlink.h> + +#include <scsi/fc/fc_els.h> +#include <scsi/fc/fc_encaps.h> +#include <scsi/fc/fc_fs.h> +#include <scsi/scsi_transport.h> +#include <scsi/scsi_transport_fc.h> + +#include <scsi/libfc.h> +#include <scsi/libfcoe.h> +#include <scsi/fc_transport_fcoe.h> + +#define FCOE_SW_VERSION "0.1" +#define FCOE_SW_NAME "fcoesw" +#define FCOE_SW_VENDOR "Open-FCoE.org" + +#define FCOE_MAX_LUN 255 +#define FCOE_MAX_FCP_TARGET 256 + +#define FCOE_MAX_OUTSTANDING_COMMANDS 1024 + +#define FCOE_MIN_XID 0x0001 /* the min xid supported by fcoe_sw */ +#define FCOE_MAX_XID 0x07ef /* the max xid supported by fcoe_sw */ + +static struct scsi_transport_template *scsi_transport_fcoe_sw; + +struct fc_function_template fcoe_sw_transport_function = { + .show_host_node_name = 1, + .show_host_port_name = 1, + .show_host_supported_classes = 1, + .show_host_supported_fc4s = 1, + .show_host_active_fc4s = 1, + .show_host_maxframe_size = 1, + + .show_host_port_id = 1, + .show_host_supported_speeds = 1, + .get_host_speed = fc_get_host_speed, + .show_host_speed = 1, + .show_host_port_type = 1, + .get_host_port_state = fc_get_host_port_state, + .show_host_port_state = 1, + .show_host_symbolic_name = 1, + + .dd_fcrport_size = sizeof(struct fc_rport_libfc_priv), + .show_rport_maxframe_size = 1, + .show_rport_supported_classes = 1, + + .show_host_fabric_name = 1, + .show_starget_node_name = 1, + .show_starget_port_name = 1, + .show_starget_port_id = 1, + .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo, + .show_rport_dev_loss_tmo = 1, + .get_fc_host_stats = fc_get_host_stats, + .issue_fc_host_lip = fcoe_reset, + + .terminate_rport_io = fc_rport_terminate_io, +}; + +static struct scsi_host_template fcoe_sw_shost_template = { + .module = THIS_MODULE, + .name = "FCoE Driver", + .proc_name = FCOE_SW_NAME, + .queuecommand = fc_queuecommand, + .eh_abort_handler = fc_eh_abort, + .eh_device_reset_handler = fc_eh_device_reset, + .eh_host_reset_handler = fc_eh_host_reset, + .slave_alloc = fc_slave_alloc, + .change_queue_depth = fc_change_queue_depth, + .change_queue_type = fc_change_queue_type, + .this_id = -1, + .cmd_per_lun = 32, + .can_queue = FCOE_MAX_OUTSTANDING_COMMANDS, + .use_clustering = ENABLE_CLUSTERING, + .sg_tablesize = SG_ALL, + .max_sectors = 0xffff, +}; + +/* + * fcoe_sw_lport_config - sets up the fc_lport + * @lp: ptr to the fc_lport + * @shost: ptr to the parent scsi host + * + * Returns: 0 for success + * + */ +static int fcoe_sw_lport_config(struct fc_lport *lp) +{ + int i = 0; + + lp->link_status = 0; + lp->max_retry_count = 3; + lp->e_d_tov = 2 * 1000; /* FC-FS default */ + lp->r_a_tov = 2 * 2 * 1000; + lp->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS | + FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL); + + /* + * allocate per cpu stats block + */ + for_each_online_cpu(i) + lp->dev_stats[i] = kzalloc(sizeof(struct fcoe_dev_stats), + GFP_KERNEL); + + /* lport fc_lport related configuration */ + fc_lport_config(lp); + + return 0; +} + +/* + * fcoe_sw_netdev_config - sets up fcoe_softc for lport and network + * related properties + * @lp : ptr to the fc_lport + * @netdev : ptr to the associated netdevice struct + * + * Must be called after fcoe_sw_lport_config() as it will use lport mutex + * + * Returns : 0 for success + * + */ +static int fcoe_sw_netdev_config(struct fc_lport *lp, struct net_device *netdev) +{ + u32 mfs; + u64 wwnn, wwpn; + struct fcoe_softc *fc; + u8 flogi_maddr[ETH_ALEN]; + + /* Setup lport private data to point to fcoe softc */ + fc = lport_priv(lp); + fc->lp = lp; + fc->real_dev = netdev; + fc->phys_dev = netdev; + + /* Require support for get_pauseparam ethtool op. */ + if (netdev->priv_flags & IFF_802_1Q_VLAN) + fc->phys_dev = vlan_dev_real_dev(netdev); + + /* Do not support for bonding device */ + if ((fc->real_dev->priv_flags & IFF_MASTER_ALB) || + (fc->real_dev->priv_flags & IFF_SLAVE_INACTIVE) || + (fc->real_dev->priv_flags & IFF_MASTER_8023AD)) { + return -EOPNOTSUPP; + } + + /* + * Determine max frame size based on underlying device and optional + * user-configured limit. If the MFS is too low, fcoe_link_ok() + * will return 0, so do this first. + */ + mfs = fc->real_dev->mtu - (sizeof(struct fcoe_hdr) + + sizeof(struct fcoe_crc_eof)); + if (fc_set_mfs(lp, mfs)) + return -EINVAL; + + lp->link_status = ~FC_PAUSE & ~FC_LINK_UP; + if (!fcoe_link_ok(lp)) + lp->link_status |= FC_LINK_UP; + + /* offload features support */ + if (fc->real_dev->features & NETIF_F_SG) + lp->sg_supp = 1; + + + skb_queue_head_init(&fc->fcoe_pending_queue); + + /* setup Source Mac Address */ + memcpy(fc->ctl_src_addr, fc->real_dev->dev_addr, + fc->real_dev->addr_len); + + wwnn = fcoe_wwn_from_mac(fc->real_dev->dev_addr, 1, 0); + fc_set_wwnn(lp, wwnn); + /* XXX - 3rd arg needs to be vlan id */ + wwpn = fcoe_wwn_from_mac(fc->real_dev->dev_addr, 2, 0); + fc_set_wwpn(lp, wwpn); + + /* + * Add FCoE MAC address as second unicast MAC address + * or enter promiscuous mode if not capable of listening + * for multiple unicast MACs. + */ + rtnl_lock(); + memcpy(flogi_maddr, (u8[6]) FC_FCOE_FLOGI_MAC, ETH_ALEN); + dev_unicast_add(fc->real_dev, flogi_maddr, ETH_ALEN); + rtnl_unlock(); + + /* + * setup the receive function from ethernet driver + * on the ethertype for the given device + */ + fc->fcoe_packet_type.func = fcoe_rcv; + fc->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE); + fc->fcoe_packet_type.dev = fc->real_dev; + dev_add_pack(&fc->fcoe_packet_type); + + return 0; +} + +/* + * fcoe_sw_shost_config - sets up fc_lport->host + * @lp : ptr to the fc_lport + * @shost : ptr to the associated scsi host + * @dev : device associated to scsi host + * + * Must be called after fcoe_sw_lport_config) and fcoe_sw_netdev_config() + * + * Returns : 0 for success + * + */ +static int fcoe_sw_shost_config(struct fc_lport *lp, struct Scsi_Host *shost, + struct device *dev) +{ + int rc = 0; + + /* lport scsi host config */ + lp->host = shost; + + lp->host->max_lun = FCOE_MAX_LUN; + lp->host->max_id = FCOE_MAX_FCP_TARGET; + lp->host->max_channel = 0; + lp->host->transportt = scsi_transport_fcoe_sw; + + /* add the new host to the SCSI-ml */ + rc = scsi_add_host(lp->host, dev); + if (rc) { + FC_DBG("fcoe_sw_shost_config:error on scsi_add_host\n"); + return rc; + } + sprintf(fc_host_symbolic_name(lp->host), "%s v%s over %s", + FCOE_SW_NAME, FCOE_SW_VERSION, + fcoe_netdev(lp)->name); + + return 0; +} + +/* + * fcoe_sw_em_config - allocates em for this lport + * @lp: the port that em is to allocated for + * + * Returns : 0 on success + */ +static inline int fcoe_sw_em_config(struct fc_lport *lp) +{ + BUG_ON(lp->emp); + + lp->emp = fc_exch_mgr_alloc(lp, FC_CLASS_3, + FCOE_MIN_XID, FCOE_MAX_XID); + if (!lp->emp) + return -ENOMEM; + + return 0; +} + +/* + * fcoe_sw_destroy - FCoE software HBA tear-down function + * @netdev: ptr to the associated net_device + * + * Returns: 0 if link is OK for use by FCoE. + */ +static int fcoe_sw_destroy(struct net_device *netdev) +{ + int cpu; + struct fc_lport *lp = NULL; + struct fcoe_softc *fc; + u8 flogi_maddr[ETH_ALEN]; + + BUG_ON(!netdev); + + printk(KERN_DEBUG "fcoe_sw_destroy:interface on %s\n", + netdev->name); + + lp = fcoe_hostlist_lookup(netdev); + if (!lp) + return -ENODEV; + + fc = fcoe_softc(lp); + + /* Logout of the fabric */ + fc_fabric_logoff(lp); + + /* Remove the instance from fcoe's list */ + fcoe_hostlist_remove(lp); + + /* Don't listen for Ethernet packets anymore */ + dev_remove_pack(&fc->fcoe_packet_type); + + /* Cleanup the fc_lport */ + fc_lport_destroy(lp); + fc_fcp_destroy(lp); + + /* Detach from the scsi-ml */ + fc_remove_host(lp->host); + scsi_remove_host(lp->host); + + /* There are no more rports or I/O, free the EM */ + if (lp->emp) + fc_exch_mgr_free(lp->emp); + + /* Delete secondary MAC addresses */ + rtnl_lock(); + memcpy(flogi_maddr, (u8[6]) FC_FCOE_FLOGI_MAC, ETH_ALEN); + dev_unicast_delete(fc->real_dev, flogi_maddr, ETH_ALEN); + if (compare_ether_addr(fc->data_src_addr, (u8[6]) { 0 })) + dev_unicast_delete(fc->real_dev, fc->data_src_addr, ETH_ALEN); + rtnl_unlock(); + + /* Free the per-CPU revieve threads */ + fcoe_percpu_clean(lp); + + /* Free existing skbs */ + fcoe_clean_pending_queue(lp); + + /* Free memory used by statistical counters */ + for_each_online_cpu(cpu) + kfree(lp->dev_stats[cpu]); + + /* Release the net_device and Scsi_Host */ + dev_put(fc->real_dev); + scsi_host_put(lp->host); + + return 0; +} + +static struct libfc_function_template fcoe_sw_libfc_fcn_templ = { + .frame_send = fcoe_xmit, +}; + +/* + * fcoe_sw_create - this function creates the fcoe interface + * @netdev: pointer the associated netdevice + * + * Creates fc_lport struct and scsi_host for lport, configures lport + * and starts fabric login. + * + * Returns : 0 on success + */ +static int fcoe_sw_create(struct net_device *netdev) +{ + int rc; + struct fc_lport *lp = NULL; + struct fcoe_softc *fc; + struct Scsi_Host *shost; + + BUG_ON(!netdev); + + printk(KERN_DEBUG "fcoe_sw_create:interface on %s\n", + netdev->name); + + lp = fcoe_hostlist_lookup(netdev); + if (lp) + return -EEXIST; + + shost = fcoe_host_alloc(&fcoe_sw_shost_template, + sizeof(struct fcoe_softc)); + if (!shost) { + FC_DBG("Could not allocate host structure\n"); + return -ENOMEM; + } + lp = shost_priv(shost); + fc = lport_priv(lp); + + /* configure fc_lport, e.g., em */ + rc = fcoe_sw_lport_config(lp); + if (rc) { + FC_DBG("Could not configure lport\n"); + goto out_host_put; + } + + /* configure lport network properties */ + rc = fcoe_sw_netdev_config(lp, netdev); + if (rc) { + FC_DBG("Could not configure netdev for lport\n"); + goto out_host_put; + } + + /* configure lport scsi host properties */ + rc = fcoe_sw_shost_config(lp, shost, &netdev->dev); + if (rc) { + FC_DBG("Could not configure shost for lport\n"); + goto out_host_put; + } + + /* lport exch manager allocation */ + rc = fcoe_sw_em_config(lp); + if (rc) { + FC_DBG("Could not configure em for lport\n"); + goto out_host_put; + } + + /* Initialize the library */ + rc = fcoe_libfc_config(lp, &fcoe_sw_libfc_fcn_templ); + if (rc) { + FC_DBG("Could not configure libfc for lport!\n"); + goto out_lp_destroy; + } + + /* add to lports list */ + fcoe_hostlist_add(lp); + + lp->boot_time = jiffies; + + fc_fabric_login(lp); + + dev_hold(netdev); + + return rc; + +out_lp_destroy: + fc_exch_mgr_free(lp->emp); /* Free the EM */ +out_host_put: + scsi_host_put(lp->host); + return rc; +} + +/* + * fcoe_sw_match - the fcoe sw transport match function + * + * Returns : false always + */ +static bool fcoe_sw_match(struct net_device *netdev) +{ + /* FIXME - for sw transport, always return false */ + return false; +} + +/* the sw hba fcoe transport */ +struct fcoe_transport fcoe_sw_transport = { + .name = "fcoesw", + .create = fcoe_sw_create, + .destroy = fcoe_sw_destroy, + .match = fcoe_sw_match, + .vendor = 0x0, + .device = 0xffff, +}; + +/* + * fcoe_sw_init - registers fcoe_sw_transport + * + * Returns : 0 on success + */ +int __init fcoe_sw_init(void) +{ + /* attach to scsi transport */ + scsi_transport_fcoe_sw = + fc_attach_transport(&fcoe_sw_transport_function); + if (!scsi_transport_fcoe_sw) { + printk(KERN_ERR "fcoe_sw_init:fc_attach_transport() failed\n"); + return -ENODEV; + } + /* register sw transport */ + fcoe_transport_register(&fcoe_sw_transport); + return 0; +} + +/* + * fcoe_sw_exit - unregisters fcoe_sw_transport + * + * Returns : 0 on success + */ +int __exit fcoe_sw_exit(void) +{ + /* dettach the transport */ + fc_release_transport(scsi_transport_fcoe_sw); + fcoe_transport_unregister(&fcoe_sw_transport); + return 0; +} diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c new file mode 100644 index 0000000..e419f48 --- /dev/null +++ b/drivers/scsi/fcoe/libfcoe.c @@ -0,0 +1,1510 @@ +/* + * Copyright(c) 2007 - 2008 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#include <linux/module.h> +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/spinlock.h> +#include <linux/skbuff.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/if_ether.h> +#include <linux/if_vlan.h> +#include <linux/kthread.h> +#include <linux/crc32.h> +#include <linux/cpu.h> +#include <linux/fs.h> +#include <linux/sysfs.h> +#include <linux/ctype.h> +#include <scsi/scsi_tcq.h> +#include <scsi/scsicam.h> +#include <scsi/scsi_transport.h> +#include <scsi/scsi_transport_fc.h> +#include <net/rtnetlink.h> + +#include <scsi/fc/fc_encaps.h> + +#include <scsi/libfc.h> +#include <scsi/fc_frame.h> +#include <scsi/libfcoe.h> +#include <scsi/fc_transport_fcoe.h> + +static int debug_fcoe; + +#define FCOE_MAX_QUEUE_DEPTH 256 + +/* destination address mode */ +#define FCOE_GW_ADDR_MODE 0x00 +#define FCOE_FCOUI_ADDR_MODE 0x01 + +#define FCOE_WORD_TO_BYTE 4 + +MODULE_AUTHOR("Open-FCoE.org"); +MODULE_DESCRIPTION("FCoE"); +MODULE_LICENSE("GPL"); + +/* fcoe host list */ +LIST_HEAD(fcoe_hostlist); +DEFINE_RWLOCK(fcoe_hostlist_lock); +DEFINE_TIMER(fcoe_timer, NULL, 0, 0); +struct fcoe_percpu_s *fcoe_percpu[NR_CPUS]; + + +/* Function Prototyes */ +static int fcoe_check_wait_queue(struct fc_lport *); +static void fcoe_insert_wait_queue_head(struct fc_lport *, struct sk_buff *); +static void fcoe_insert_wait_queue(struct fc_lport *, struct sk_buff *); +static void fcoe_recv_flogi(struct fcoe_softc *, struct fc_frame *, u8 *); +#ifdef CONFIG_HOTPLUG_CPU +static int fcoe_cpu_callback(struct notifier_block *, ulong, void *); +#endif /* CONFIG_HOTPLUG_CPU */ +static int fcoe_device_notification(struct notifier_block *, ulong, void *); +static void fcoe_dev_setup(void); +static void fcoe_dev_cleanup(void); + +/* notification function from net device */ +static struct notifier_block fcoe_notifier = { + .notifier_call = fcoe_device_notification, +}; + + +#ifdef CONFIG_HOTPLUG_CPU +static struct notifier_block fcoe_cpu_notifier = { + .notifier_call = fcoe_cpu_callback, +}; + +/** + * fcoe_create_percpu_data - creates the associated cpu data + * @cpu: index for the cpu where fcoe cpu data will be created + * + * create percpu stats block, from cpu add notifier + * + * Returns: none + **/ +static void fcoe_create_percpu_data(int cpu) +{ + struct fc_lport *lp; + struct fcoe_softc *fc; + + write_lock_bh(&fcoe_hostlist_lock); + list_for_each_entry(fc, &fcoe_hostlist, list) { + lp = fc->lp; + if (lp->dev_stats[cpu] == NULL) + lp->dev_stats[cpu] = + kzalloc(sizeof(struct fcoe_dev_stats), + GFP_KERNEL); + } + write_unlock_bh(&fcoe_hostlist_lock); +} + +/** + * fcoe_destroy_percpu_data - destroys the associated cpu data + * @cpu: index for the cpu where fcoe cpu data will destroyed + * + * destroy percpu stats block called by cpu add/remove notifier + * + * Retuns: none + **/ +static void fcoe_destroy_percpu_data(int cpu) +{ + struct fc_lport *lp; + struct fcoe_softc *fc; + + write_lock_bh(&fcoe_hostlist_lock); + list_for_each_entry(fc, &fcoe_hostlist, list) { + lp = fc->lp; + kfree(lp->dev_stats[cpu]); + lp->dev_stats[cpu] = NULL; + } + write_unlock_bh(&fcoe_hostlist_lock); +} + +/** + * fcoe_cpu_callback - fcoe cpu hotplug event callback + * @nfb: callback data block + * @action: event triggering the callback + * @hcpu: index for the cpu of this event + * + * this creates or destroys per cpu data for fcoe + * + * Returns NOTIFY_OK always. + **/ +static int fcoe_cpu_callback(struct notifier_block *nfb, unsigned long action, + void *hcpu) +{ + unsigned int cpu = (unsigned long)hcpu; + + switch (action) { + case CPU_ONLINE: + fcoe_create_percpu_data(cpu); + break; + case CPU_DEAD: + fcoe_destroy_percpu_data(cpu); + break; + default: + break; + } + return NOTIFY_OK; +} +#endif /* CONFIG_HOTPLUG_CPU */ + +/** + * fcoe_rcv - this is the fcoe receive function called by NET_RX_SOFTIRQ + * @skb: the receive skb + * @dev: associated net device + * @ptype: context + * @odldev: last device + * + * this function will receive the packet and build fc frame and pass it up + * + * Returns: 0 for success + **/ +int fcoe_rcv(struct sk_buff *skb, struct net_device *dev, + struct packet_type *ptype, struct net_device *olddev) +{ + struct fc_lport *lp; + struct fcoe_rcv_info *fr; + struct fcoe_softc *fc; + struct fcoe_dev_stats *stats; + struct fc_frame_header *fh; + unsigned short oxid; + int cpu_idx; + struct fcoe_percpu_s *fps; + + fc = container_of(ptype, struct fcoe_softc, fcoe_packet_type); + lp = fc->lp; + if (unlikely(lp == NULL)) { + FC_DBG("cannot find hba structure"); + goto err2; + } + + if (unlikely(debug_fcoe)) { + FC_DBG("skb_info: len:%d data_len:%d head:%p data:%p tail:%p " + "end:%p sum:%d dev:%s", skb->len, skb->data_len, + skb->head, skb->data, skb_tail_pointer(skb), + skb_end_pointer(skb), skb->csum, + skb->dev ? skb->dev->name : "<NULL>"); + + } + + /* check for FCOE packet type */ + if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) { + FC_DBG("wrong FC type frame"); + goto err; + } + + /* + * Check for minimum frame length, and make sure required FCoE + * and FC headers are pulled into the linear data area. + */ + if (unlikely((skb->len < FCOE_MIN_FRAME) || + !pskb_may_pull(skb, FCOE_HEADER_LEN))) + goto err; + + skb_set_transport_header(skb, sizeof(struct fcoe_hdr)); + fh = (struct fc_frame_header *) skb_transport_header(skb); + + oxid = ntohs(fh->fh_ox_id); + + fr = fcoe_dev_from_skb(skb); + fr->fr_dev = lp; + fr->ptype = ptype; + cpu_idx = 0; +#ifdef CONFIG_SMP + /* + * The incoming frame exchange id(oxid) is ANDed with num of online + * cpu bits to get cpu_idx and then this cpu_idx is used for selecting + * a per cpu kernel thread from fcoe_percpu. In case the cpu is + * offline or no kernel thread for derived cpu_idx then cpu_idx is + * initialize to first online cpu index. + */ + cpu_idx = oxid & (num_online_cpus() - 1); + if (!fcoe_percpu[cpu_idx] || !cpu_online(cpu_idx)) + cpu_idx = first_cpu(cpu_online_map); +#endif + fps = fcoe_percpu[cpu_idx]; + + spin_lock_bh(&fps->fcoe_rx_list.lock); + __skb_queue_tail(&fps->fcoe_rx_list, skb); + if (fps->fcoe_rx_list.qlen == 1) + wake_up_process(fps->thread); + + spin_unlock_bh(&fps->fcoe_rx_list.lock); + + return 0; +err: +#ifdef CONFIG_SMP + stats = lp->dev_stats[smp_processor_id()]; +#else + stats = lp->dev_stats[0]; +#endif + if (stats) + stats->ErrorFrames++; + +err2: + kfree_skb(skb); + return -1; +} +EXPORT_SYMBOL_GPL(fcoe_rcv); + +/** + * fcoe_start_io - pass to netdev to start xmit for fcoe + * @skb: the skb to be xmitted + * + * Returns: 0 for success + **/ +static inline int fcoe_start_io(struct sk_buff *skb) +{ + int rc; + + skb_get(skb); + rc = dev_queue_xmit(skb); + if (rc != 0) + return rc; + kfree_skb(skb); + return 0; +} + +/** + * fcoe_get_paged_crc_eof - in case we need alloc a page for crc_eof + * @skb: the skb to be xmitted + * @tlen: total len + * + * Returns: 0 for success + **/ +static int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen) +{ + struct fcoe_percpu_s *fps; + struct page *page; + int cpu_idx; + + cpu_idx = get_cpu(); + fps = fcoe_percpu[cpu_idx]; + page = fps->crc_eof_page; + if (!page) { + page = alloc_page(GFP_ATOMIC); + if (!page) { + put_cpu(); + return -ENOMEM; + } + fps->crc_eof_page = page; + WARN_ON(fps->crc_eof_offset != 0); + } + + get_page(page); + skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, page, + fps->crc_eof_offset, tlen); + skb->len += tlen; + skb->data_len += tlen; + skb->truesize += tlen; + fps->crc_eof_offset += sizeof(struct fcoe_crc_eof); + + if (fps->crc_eof_offset >= PAGE_SIZE) { + fps->crc_eof_page = NULL; + fps->crc_eof_offset = 0; + put_page(page); + } + put_cpu(); + return 0; +} + +/** + * fcoe_fc_crc - calculates FC CRC in this fcoe skb + * @fp: the fc_frame containg data to be checksummed + * + * This uses crc32() to calculate the crc for fc frame + * Return : 32 bit crc + * + **/ +u32 fcoe_fc_crc(struct fc_frame *fp) +{ + struct sk_buff *skb = fp_skb(fp); + struct skb_frag_struct *frag; + unsigned char *data; + unsigned long off, len, clen; + u32 crc; + unsigned i; + + crc = crc32(~0, skb->data, skb_headlen(skb)); + + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { + frag = &skb_shinfo(skb)->frags[i]; + off = frag->page_offset; + len = frag->size; + while (len > 0) { + clen = min(len, PAGE_SIZE - (off & ~PAGE_MASK)); + data = kmap_atomic(frag->page + (off >> PAGE_SHIFT), + KM_SKB_DATA_SOFTIRQ); + crc = crc32(crc, data + (off & ~PAGE_MASK), clen); + kunmap_atomic(data, KM_SKB_DATA_SOFTIRQ); + off += clen; + len -= clen; + } + } + return crc; +} +EXPORT_SYMBOL_GPL(fcoe_fc_crc); + +/** + * fcoe_xmit - FCoE frame transmit function + * @lp: the associated local port + * @fp: the fc_frame to be transmitted + * + * Return : 0 for success + * + **/ +int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp) +{ + int wlen, rc = 0; + u32 crc; + struct ethhdr *eh; + struct fcoe_crc_eof *cp; + struct sk_buff *skb; + struct fcoe_dev_stats *stats; + struct fc_frame_header *fh; + unsigned int hlen; /* header length implies the version */ + unsigned int tlen; /* trailer length */ + unsigned int elen; /* eth header, may include vlan */ + int flogi_in_progress = 0; + struct fcoe_softc *fc; + u8 sof, eof; + struct fcoe_hdr *hp; + + WARN_ON((fr_len(fp) % sizeof(u32)) != 0); + + fc = fcoe_softc(lp); + /* + * if it is a flogi then we need to learn gw-addr + * and my own fcid + */ + fh = fc_frame_header_get(fp); + if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) { + if (fc_frame_payload_op(fp) == ELS_FLOGI) { + fc->flogi_oxid = ntohs(fh->fh_ox_id); + fc->address_mode = FCOE_FCOUI_ADDR_MODE; + fc->flogi_progress = 1; + flogi_in_progress = 1; + } else if (fc->flogi_progress && ntoh24(fh->fh_s_id) != 0) { + /* + * Here we must've gotten an SID by accepting an FLOGI + * from a point-to-point connection. Switch to using + * the source mac based on the SID. The destination + * MAC in this case would have been set by receving the + * FLOGI. + */ + fc_fcoe_set_mac(fc->data_src_addr, fh->fh_s_id); + fc->flogi_progress = 0; + } + } + + skb = fp_skb(fp); + sof = fr_sof(fp); + eof = fr_eof(fp); + + elen = (fc->real_dev->priv_flags & IFF_802_1Q_VLAN) ? + sizeof(struct vlan_ethhdr) : sizeof(struct ethhdr); + hlen = sizeof(struct fcoe_hdr); + tlen = sizeof(struct fcoe_crc_eof); + wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE; + + /* crc offload */ + if (likely(lp->crc_offload)) { + skb->ip_summed = CHECKSUM_COMPLETE; + skb->csum_start = skb_headroom(skb); + skb->csum_offset = skb->len; + crc = 0; + } else { + skb->ip_summed = CHECKSUM_NONE; + crc = fcoe_fc_crc(fp); + } + + /* copy fc crc and eof to the skb buff */ + if (skb_is_nonlinear(skb)) { + skb_frag_t *frag; + if (fcoe_get_paged_crc_eof(skb, tlen)) { + kfree(skb); + return -ENOMEM; + } + frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1]; + cp = kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ) + + frag->page_offset; + } else { + cp = (struct fcoe_crc_eof *)skb_put(skb, tlen); + } + + memset(cp, 0, sizeof(*cp)); + cp->fcoe_eof = eof; + cp->fcoe_crc32 = cpu_to_le32(~crc); + + if (skb_is_nonlinear(skb)) { + kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ); + cp = NULL; + } + + /* adjust skb netowrk/transport offsets to match mac/fcoe/fc */ + skb_push(skb, elen + hlen); + skb_reset_mac_header(skb); + skb_reset_network_header(skb); + skb->mac_len = elen; + skb->protocol = htons(ETH_P_802_3); + skb->dev = fc->real_dev; + + /* fill up mac and fcoe headers */ + eh = eth_hdr(skb); + eh->h_proto = htons(ETH_P_FCOE); + if (fc->address_mode == FCOE_FCOUI_ADDR_MODE) + fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id); + else + /* insert GW address */ + memcpy(eh->h_dest, fc->dest_addr, ETH_ALEN); + + if (unlikely(flogi_in_progress)) + memcpy(eh->h_source, fc->ctl_src_addr, ETH_ALEN); + else + memcpy(eh->h_source, fc->data_src_addr, ETH_ALEN); + + hp = (struct fcoe_hdr *)(eh + 1); + memset(hp, 0, sizeof(*hp)); + if (FC_FCOE_VER) + FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER); + hp->fcoe_sof = sof; + + /* update tx stats: regardless if LLD fails */ + stats = lp->dev_stats[smp_processor_id()]; + if (stats) { + stats->TxFrames++; + stats->TxWords += wlen; + } + + /* send down to lld */ + fr_dev(fp) = lp; + if (fc->fcoe_pending_queue.qlen) + rc = fcoe_check_wait_queue(lp); + + if (rc == 0) + rc = fcoe_start_io(skb); + + if (rc) { + fcoe_insert_wait_queue(lp, skb); + if (fc->fcoe_pending_queue.qlen > FCOE_MAX_QUEUE_DEPTH) + fc_pause(lp); + } + + return 0; +} +EXPORT_SYMBOL_GPL(fcoe_xmit); + +/* + * fcoe_percpu_receive_thread - recv thread per cpu + * @arg: ptr to the fcoe per cpu struct + * + * Return: 0 for success + * + */ +int fcoe_percpu_receive_thread(void *arg) +{ + struct fcoe_percpu_s *p = arg; + u32 fr_len; + struct fc_lport *lp; + struct fcoe_rcv_info *fr; + struct fcoe_dev_stats *stats; + struct fc_frame_header *fh; + struct sk_buff *skb; + struct fcoe_crc_eof crc_eof; + struct fc_frame *fp; + u8 *mac = NULL; + struct fcoe_softc *fc; + struct fcoe_hdr *hp; + + set_user_nice(current, 19); + + while (!kthread_should_stop()) { + + spin_lock_bh(&p->fcoe_rx_list.lock); + while ((skb = __skb_dequeue(&p->fcoe_rx_list)) == NULL) { + set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_bh(&p->fcoe_rx_list.lock); + schedule(); + set_current_state(TASK_RUNNING); + if (kthread_should_stop()) + return 0; + spin_lock_bh(&p->fcoe_rx_list.lock); + } + spin_unlock_bh(&p->fcoe_rx_list.lock); + fr = fcoe_dev_from_skb(skb); + lp = fr->fr_dev; + if (unlikely(lp == NULL)) { + FC_DBG("invalid HBA Structure"); + kfree_skb(skb); + continue; + } + + stats = lp->dev_stats[smp_processor_id()]; + + if (unlikely(debug_fcoe)) { + FC_DBG("skb_info: len:%d data_len:%d head:%p data:%p " + "tail:%p end:%p sum:%d dev:%s", + skb->len, skb->data_len, + skb->head, skb->data, skb_tail_pointer(skb), + skb_end_pointer(skb), skb->csum, + skb->dev ? skb->dev->name : "<NULL>"); + } + + /* + * Save source MAC address before discarding header. + */ + fc = lport_priv(lp); + if (unlikely(fc->flogi_progress)) + mac = eth_hdr(skb)->h_source; + + if (skb_is_nonlinear(skb)) + skb_linearize(skb); /* not ideal */ + + /* + * Frame length checks and setting up the header pointers + * was done in fcoe_rcv already. + */ + hp = (struct fcoe_hdr *) skb_network_header(skb); + fh = (struct fc_frame_header *) skb_transport_header(skb); + + if (unlikely(FC_FCOE_DECAPS_VER(hp) != FC_FCOE_VER)) { + if (stats) { + if (stats->ErrorFrames < 5) + FC_DBG("unknown FCoE version %x", + FC_FCOE_DECAPS_VER(hp)); + stats->ErrorFrames++; + } + kfree_skb(skb); + continue; + } + + skb_pull(skb, sizeof(struct fcoe_hdr)); + fr_len = skb->len - sizeof(struct fcoe_crc_eof); + + if (stats) { + stats->RxFrames++; + stats->RxWords += fr_len / FCOE_WORD_TO_BYTE; + } + + fp = (struct fc_frame *)skb; + fc_frame_init(fp); + fr_dev(fp) = lp; + fr_sof(fp) = hp->fcoe_sof; + + /* Copy out the CRC and EOF trailer for access */ + if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) { + kfree_skb(skb); + continue; + } + fr_eof(fp) = crc_eof.fcoe_eof; + fr_crc(fp) = crc_eof.fcoe_crc32; + if (pskb_trim(skb, fr_len)) { + kfree_skb(skb); + continue; + } + + /* + * We only check CRC if no offload is available and if it is + * it's solicited data, in which case, the FCP layer would + * check it during the copy. + */ + if (lp->crc_offload) + fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED; + else + fr_flags(fp) |= FCPHF_CRC_UNCHECKED; + + fh = fc_frame_header_get(fp); + if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA && + fh->fh_type == FC_TYPE_FCP) { + fc_exch_recv(lp, lp->emp, fp); + continue; + } + if (fr_flags(fp) & FCPHF_CRC_UNCHECKED) { + if (le32_to_cpu(fr_crc(fp)) != + ~crc32(~0, skb->data, fr_len)) { + if (debug_fcoe || stats->InvalidCRCCount < 5) + printk(KERN_WARNING "fcoe: dropping " + "frame with CRC error\n"); + stats->InvalidCRCCount++; + stats->ErrorFrames++; + fc_frame_free(fp); + continue; + } + fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED; + } + /* non flogi and non data exchanges are handled here */ + if (unlikely(fc->flogi_progress)) + fcoe_recv_flogi(fc, fp, mac); + fc_exch_recv(lp, lp->emp, fp); + } + return 0; +} + +/** + * fcoe_recv_flogi - flogi receive function + * @fc: associated fcoe_softc + * @fp: the recieved frame + * @sa: the source address of this flogi + * + * This is responsible to parse the flogi response and sets the corresponding + * mac address for the initiator, eitehr OUI based or GW based. + * + * Returns: none + **/ +static void fcoe_recv_flogi(struct fcoe_softc *fc, struct fc_frame *fp, u8 *sa) +{ + struct fc_frame_header *fh; + u8 op; + + fh = fc_frame_header_get(fp); + if (fh->fh_type != FC_TYPE_ELS) + return; + op = fc_frame_payload_op(fp); + if (op == ELS_LS_ACC && fh->fh_r_ctl == FC_RCTL_ELS_REP && + fc->flogi_oxid == ntohs(fh->fh_ox_id)) { + /* + * FLOGI accepted. + * If the src mac addr is FC_OUI-based, then we mark the + * address_mode flag to use FC_OUI-based Ethernet DA. + * Otherwise we use the FCoE gateway addr + */ + if (!compare_ether_addr(sa, (u8[6]) FC_FCOE_FLOGI_MAC)) { + fc->address_mode = FCOE_FCOUI_ADDR_MODE; + } else { + memcpy(fc->dest_addr, sa, ETH_ALEN); + fc->address_mode = FCOE_GW_ADDR_MODE; + } + + /* + * Remove any previously-set unicast MAC filter. + * Add secondary FCoE MAC address filter for our OUI. + */ + rtnl_lock(); + if (compare_ether_addr(fc->data_src_addr, (u8[6]) { 0 })) + dev_unicast_delete(fc->real_dev, fc->data_src_addr, + ETH_ALEN); + fc_fcoe_set_mac(fc->data_src_addr, fh->fh_d_id); + dev_unicast_add(fc->real_dev, fc->data_src_addr, ETH_ALEN); + rtnl_unlock(); + + fc->flogi_progress = 0; + } else if (op == ELS_FLOGI && fh->fh_r_ctl == FC_RCTL_ELS_REQ && sa) { + /* + * Save source MAC for point-to-point responses. + */ + memcpy(fc->dest_addr, sa, ETH_ALEN); + fc->address_mode = FCOE_GW_ADDR_MODE; + } +} + +/** + * fcoe_watchdog - fcoe timer callback + * @vp: + * + * This checks the pending queue length for fcoe and put fcoe to be paused state + * if the FCOE_MAX_QUEUE_DEPTH is reached. This is done for all fc_lport on the + * fcoe_hostlist. + * + * Returns: 0 for success + **/ +void fcoe_watchdog(ulong vp) +{ + struct fc_lport *lp; + struct fcoe_softc *fc; + int paused = 0; + + read_lock(&fcoe_hostlist_lock); + list_for_each_entry(fc, &fcoe_hostlist, list) { + lp = fc->lp; + if (lp) { + if (fc->fcoe_pending_queue.qlen > FCOE_MAX_QUEUE_DEPTH) + paused = 1; + if (fcoe_check_wait_queue(lp) < FCOE_MAX_QUEUE_DEPTH) { + if (paused) + fc_unpause(lp); + } + } + } + read_unlock(&fcoe_hostlist_lock); + + fcoe_timer.expires = jiffies + (1 * HZ); + add_timer(&fcoe_timer); +} + + +/** + * fcoe_check_wait_queue - put the skb into fcoe pending xmit queue + * @lp: the fc_port for this skb + * @skb: the associated skb to be xmitted + * + * This empties the wait_queue, dequeue the head of the wait_queue queue + * and calls fcoe_start_io() for each packet, if all skb have been + * transmitted, return 0 if a error occurs, then restore wait_queue and + * try again later. + * + * The wait_queue is used when the skb transmit fails. skb will go + * in the wait_queue which will be emptied by the time function OR + * by the next skb transmit. + * + * Returns: 0 for success + **/ +static int fcoe_check_wait_queue(struct fc_lport *lp) +{ + int rc, unpause = 0; + int paused = 0; + struct sk_buff *skb; + struct fcoe_softc *fc; + + fc = fcoe_softc(lp); + spin_lock_bh(&fc->fcoe_pending_queue.lock); + + /* + * is this interface paused? + */ + if (fc->fcoe_pending_queue.qlen > FCOE_MAX_QUEUE_DEPTH) + paused = 1; + if (fc->fcoe_pending_queue.qlen) { + while ((skb = __skb_dequeue(&fc->fcoe_pending_queue)) != NULL) { + spin_unlock_bh(&fc->fcoe_pending_queue.lock); + rc = fcoe_start_io(skb); + if (rc) { + fcoe_insert_wait_queue_head(lp, skb); + return rc; + } + spin_lock_bh(&fc->fcoe_pending_queue.lock); + } + if (fc->fcoe_pending_queue.qlen < FCOE_MAX_QUEUE_DEPTH) + unpause = 1; + } + spin_unlock_bh(&fc->fcoe_pending_queue.lock); + if ((unpause) && (paused)) + fc_unpause(lp); + return fc->fcoe_pending_queue.qlen; +} + +/** + * fcoe_insert_wait_queue_head - puts skb to fcoe pending queue head + * @lp: the fc_port for this skb + * @skb: the associated skb to be xmitted + * + * Returns: none + **/ +static void fcoe_insert_wait_queue_head(struct fc_lport *lp, + struct sk_buff *skb) +{ + struct fcoe_softc *fc; + + fc = fcoe_softc(lp); + spin_lock_bh(&fc->fcoe_pending_queue.lock); + __skb_queue_head(&fc->fcoe_pending_queue, skb); + spin_unlock_bh(&fc->fcoe_pending_queue.lock); +} + +/** + * fcoe_insert_wait_queue - put the skb into fcoe pending queue tail + * @lp: the fc_port for this skb + * @skb: the associated skb to be xmitted + * + * Returns: none + **/ +static void fcoe_insert_wait_queue(struct fc_lport *lp, + struct sk_buff *skb) +{ + struct fcoe_softc *fc; + + fc = fcoe_softc(lp); + spin_lock_bh(&fc->fcoe_pending_queue.lock); + __skb_queue_tail(&fc->fcoe_pending_queue, skb); + spin_unlock_bh(&fc->fcoe_pending_queue.lock); +} + +/** + * fcoe_dev_setup - setup link change notification interface + * + **/ +static void fcoe_dev_setup(void) +{ + /* + * here setup a interface specific wd time to + * monitor the link state + */ + register_netdevice_notifier(&fcoe_notifier); +} + +/** + * fcoe_dev_setup - cleanup link change notification interface + **/ +static void fcoe_dev_cleanup(void) +{ + unregister_netdevice_notifier(&fcoe_notifier); +} + +/** + * fcoe_device_notification - netdev event notification callback + * @notifier: context of the notification + * @event: type of event + * @ptr: fixed array for output parsed ifname + * + * This function is called by the ethernet driver in case of link change event + * + * Returns: 0 for success + **/ +static int fcoe_device_notification(struct notifier_block *notifier, + ulong event, void *ptr) +{ + struct fc_lport *lp = NULL; + struct net_device *real_dev = ptr; + struct fcoe_softc *fc; + struct fcoe_dev_stats *stats; + u16 new_status; + u32 mfs; + int rc = NOTIFY_OK; + + read_lock(&fcoe_hostlist_lock); + list_for_each_entry(fc, &fcoe_hostlist, list) { + if (fc->real_dev == real_dev) { + lp = fc->lp; + break; + } + } + read_unlock(&fcoe_hostlist_lock); + if (lp == NULL) { + rc = NOTIFY_DONE; + goto out; + } + + new_status = lp->link_status; + switch (event) { + case NETDEV_DOWN: + case NETDEV_GOING_DOWN: + new_status &= ~FC_LINK_UP; + break; + case NETDEV_UP: + case NETDEV_CHANGE: + new_status &= ~FC_LINK_UP; + if (!fcoe_link_ok(lp)) + new_status |= FC_LINK_UP; + break; + case NETDEV_CHANGEMTU: + mfs = fc->real_dev->mtu - + (sizeof(struct fcoe_hdr) + + sizeof(struct fcoe_crc_eof)); + if (mfs >= FC_MIN_MAX_FRAME) + fc_set_mfs(lp, mfs); + new_status &= ~FC_LINK_UP; + if (!fcoe_link_ok(lp)) + new_status |= FC_LINK_UP; + break; + case NETDEV_REGISTER: + break; + default: + FC_DBG("unknown event %ld call", event); + } + if (lp->link_status != new_status) { + if ((new_status & FC_LINK_UP) == FC_LINK_UP) + fc_linkup(lp); + else { + stats = lp->dev_stats[smp_processor_id()]; + if (stats) + stats->LinkFailureCount++; + fc_linkdown(lp); + fcoe_clean_pending_queue(lp); + } + } +out: + return rc; +} + +/** + * fcoe_if_to_netdev - parse a name buffer to get netdev + * @ifname: fixed array for output parsed ifname + * @buffer: incoming buffer to be copied + * + * Returns: NULL or ptr to netdeive + **/ +static struct net_device *fcoe_if_to_netdev(const char *buffer) +{ + char *cp; + char ifname[IFNAMSIZ + 2]; + + if (buffer) { + strlcpy(ifname, buffer, IFNAMSIZ); + cp = ifname + strlen(ifname); + while (--cp >= ifname && *cp == '\n') + *cp = '\0'; + return dev_get_by_name(&init_net, ifname); + } + return NULL; +} + +/** + * fcoe_netdev_to_module_owner - finds out the nic drive moddule of the netdev + * @netdev: the target netdev + * + * Returns: ptr to the struct module, NULL for failure + **/ +static struct module *fcoe_netdev_to_module_owner( + const struct net_device *netdev) +{ + struct device *dev; + + if (!netdev) + return NULL; + + dev = netdev->dev.parent; + if (!dev) + return NULL; + + if (!dev->driver) + return NULL; + + return dev->driver->owner; +} + +/** + * fcoe_ethdrv_get - holds the nic driver module by try_module_get() for + * the corresponding netdev. + * @netdev: the target netdev + * + * Returns: 0 for succsss + **/ +static int fcoe_ethdrv_get(const struct net_device *netdev) +{ + struct module *owner; + + owner = fcoe_netdev_to_module_owner(netdev); + if (owner) { + printk(KERN_DEBUG "fcoe:hold driver module %s for %s\n", + module_name(owner), netdev->name); + return try_module_get(owner); + } + return -ENODEV; +} + +/** + * fcoe_ethdrv_get - releases the nic driver module by module_put for + * the corresponding netdev. + * @netdev: the target netdev + * + * Returns: 0 for succsss + **/ +static int fcoe_ethdrv_put(const struct net_device *netdev) +{ + struct module *owner; + + owner = fcoe_netdev_to_module_owner(netdev); + if (owner) { + printk(KERN_DEBUG "fcoe:release driver module %s for %s\n", + module_name(owner), netdev->name); + module_put(owner); + return 0; + } + return -ENODEV; +} + +/** + * fcoe_destroy- handles the destroy from sysfs + * @buffer: expcted to be a eth if name + * @kp: associated kernel param + * + * Returns: 0 for success + **/ +static int fcoe_destroy(const char *buffer, struct kernel_param *kp) +{ + int rc; + struct net_device *netdev; + + netdev = fcoe_if_to_netdev(buffer); + if (!netdev) { + rc = -ENODEV; + goto out_nodev; + } + /* look for existing lport */ + if (!fcoe_hostlist_lookup(netdev)) { + rc = -ENODEV; + goto out_putdev; + } + /* pass to transport */ + rc = fcoe_transport_release(netdev); + if (rc) { + printk(KERN_ERR "fcoe: fcoe_transport_release(%s) failed\n", + netdev->name); + rc = -EIO; + goto out_putdev; + } + fcoe_ethdrv_put(netdev); + rc = 0; +out_putdev: + dev_put(netdev); +out_nodev: + return rc; +} + +/** + * fcoe_create - handles the create call from sysfs + * @buffer: expcted to be a eth if name + * @kp: associated kernel param + * + * Returns: 0 for success + **/ +static int fcoe_create(const char *buffer, struct kernel_param *kp) +{ + int rc; + struct net_device *netdev; + + netdev = fcoe_if_to_netdev(buffer); + if (!netdev) { + rc = -ENODEV; + goto out_nodev; + } + /* look for existing lport */ + if (fcoe_hostlist_lookup(netdev)) { + rc = -EEXIST; + goto out_putdev; + } + fcoe_ethdrv_get(netdev); + + /* pass to transport */ + rc = fcoe_transport_attach(netdev); + if (rc) { + printk(KERN_ERR "fcoe: fcoe_transport_attach(%s) failed\n", + netdev->name); + fcoe_ethdrv_put(netdev); + rc = -EIO; + goto out_putdev; + } + rc = 0; +out_putdev: + dev_put(netdev); +out_nodev: + return rc; +} + +module_param_call(create, fcoe_create, NULL, NULL, S_IWUSR); +__MODULE_PARM_TYPE(create, "string"); +MODULE_PARM_DESC(create, "Create fcoe port using net device passed in."); +module_param_call(destroy, fcoe_destroy, NULL, NULL, S_IWUSR); +__MODULE_PARM_TYPE(destroy, "string"); +MODULE_PARM_DESC(destroy, "Destroy fcoe port"); + +/* + * fcoe_link_ok - check if link is ok for the fc_lport + * @lp: ptr to the fc_lport + * + * Any permanently-disqualifying conditions have been previously checked. + * This also updates the speed setting, which may change with link for 100/1000. + * + * This function should probably be checking for PAUSE support at some point + * in the future. Currently Per-priority-pause is not determinable using + * ethtool, so we shouldn't be restrictive until that problem is resolved. + * + * Returns: 0 if link is OK for use by FCoE. + * + */ +int fcoe_link_ok(struct fc_lport *lp) +{ + struct fcoe_softc *fc = fcoe_softc(lp); + struct net_device *dev = fc->real_dev; + struct ethtool_cmd ecmd = { ETHTOOL_GSET }; + int rc = 0; + + if ((dev->flags & IFF_UP) && netif_carrier_ok(dev)) { + dev = fc->phys_dev; + if (dev->ethtool_ops->get_settings) { + dev->ethtool_ops->get_settings(dev, &ecmd); + lp->link_supported_speeds &= + ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT); + if (ecmd.supported & (SUPPORTED_1000baseT_Half | + SUPPORTED_1000baseT_Full)) + lp->link_supported_speeds |= FC_PORTSPEED_1GBIT; + if (ecmd.supported & SUPPORTED_10000baseT_Full) + lp->link_supported_speeds |= + FC_PORTSPEED_10GBIT; + if (ecmd.speed == SPEED_1000) + lp->link_speed = FC_PORTSPEED_1GBIT; + if (ecmd.speed == SPEED_10000) + lp->link_speed = FC_PORTSPEED_10GBIT; + } + } else + rc = -1; + + return rc; +} +EXPORT_SYMBOL_GPL(fcoe_link_ok); + +/* + * fcoe_percpu_clean - frees skb of the corresponding lport from the per + * cpu queue. + * @lp: the fc_lport + */ +void fcoe_percpu_clean(struct fc_lport *lp) +{ + int idx; + struct fcoe_percpu_s *pp; + struct fcoe_rcv_info *fr; + struct sk_buff_head *list; + struct sk_buff *skb, *next; + struct sk_buff *head; + + for (idx = 0; idx < NR_CPUS; idx++) { + if (fcoe_percpu[idx]) { + pp = fcoe_percpu[idx]; + spin_lock_bh(&pp->fcoe_rx_list.lock); + list = &pp->fcoe_rx_list; + head = list->next; + for (skb = head; skb != (struct sk_buff *)list; + skb = next) { + next = skb->next; + fr = fcoe_dev_from_skb(skb); + if (fr->fr_dev == lp) { + __skb_unlink(skb, list); + kfree_skb(skb); + } + } + spin_unlock_bh(&pp->fcoe_rx_list.lock); + } + } +} +EXPORT_SYMBOL_GPL(fcoe_percpu_clean); + +/** + * fcoe_clean_pending_queue - dequeue skb and free it + * @lp: the corresponding fc_lport + * + * Returns: none + **/ +void fcoe_clean_pending_queue(struct fc_lport *lp) +{ + struct fcoe_softc *fc = lport_priv(lp); + struct sk_buff *skb; + + spin_lock_bh(&fc->fcoe_pending_queue.lock); + while ((skb = __skb_dequeue(&fc->fcoe_pending_queue)) != NULL) { + spin_unlock_bh(&fc->fcoe_pending_queue.lock); + kfree_skb(skb); + spin_lock_bh(&fc->fcoe_pending_queue.lock); + } + spin_unlock_bh(&fc->fcoe_pending_queue.lock); +} +EXPORT_SYMBOL_GPL(fcoe_clean_pending_queue); + +/** + * libfc_host_alloc - allocate a Scsi_Host with room for the fc_lport + * @sht: ptr to the scsi host templ + * @priv_size: size of private data after fc_lport + * + * Returns: ptr to Scsi_Host + * TODO - to libfc? + */ +static inline struct Scsi_Host *libfc_host_alloc( + struct scsi_host_template *sht, int priv_size) +{ + return scsi_host_alloc(sht, sizeof(struct fc_lport) + priv_size); +} + +/** + * fcoe_host_alloc - allocate a Scsi_Host with room for the fcoe_softc + * @sht: ptr to the scsi host templ + * @priv_size: size of private data after fc_lport + * + * Returns: ptr to Scsi_Host + */ +struct Scsi_Host *fcoe_host_alloc(struct scsi_host_template *sht, int priv_size) +{ + return libfc_host_alloc(sht, sizeof(struct fcoe_softc) + priv_size); +} +EXPORT_SYMBOL_GPL(fcoe_host_alloc); + +/* + * fcoe_reset - resets the fcoe + * @shost: shost the reset is from + * + * Returns: always 0 + */ +int fcoe_reset(struct Scsi_Host *shost) +{ + struct fc_lport *lport = shost_priv(shost); + fc_lport_reset(lport); + return 0; +} +EXPORT_SYMBOL_GPL(fcoe_reset); + +/* + * fcoe_wwn_from_mac - converts 48-bit IEEE MAC address to 64-bit FC WWN. + * @mac: mac address + * @scheme: check port + * @port: port indicator for converting + * + * Returns: u64 fc world wide name + */ +u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN], + unsigned int scheme, unsigned int port) +{ + u64 wwn; + u64 host_mac; + + /* The MAC is in NO, so flip only the low 48 bits */ + host_mac = ((u64) mac[0] << 40) | + ((u64) mac[1] << 32) | + ((u64) mac[2] << 24) | + ((u64) mac[3] << 16) | + ((u64) mac[4] << 8) | + (u64) mac[5]; + + WARN_ON(host_mac >= (1ULL << 48)); + wwn = host_mac | ((u64) scheme << 60); + switch (scheme) { + case 1: + WARN_ON(port != 0); + break; + case 2: + WARN_ON(port >= 0xfff); + wwn |= (u64) port << 48; + break; + default: + WARN_ON(1); + break; + } + + return wwn; +} +EXPORT_SYMBOL_GPL(fcoe_wwn_from_mac); +/* + * fcoe_hostlist_lookup_softc - find the corresponding lport by a given device + * @device: this is currently ptr to net_device + * + * Returns: NULL or the located fcoe_softc + */ +static struct fcoe_softc *fcoe_hostlist_lookup_softc( + const struct net_device *dev) +{ + struct fcoe_softc *fc; + + read_lock(&fcoe_hostlist_lock); + list_for_each_entry(fc, &fcoe_hostlist, list) { + if (fc->real_dev == dev) { + read_unlock(&fcoe_hostlist_lock); + return fc; + } + } + read_unlock(&fcoe_hostlist_lock); + return NULL; +} + +/* + * fcoe_hostlist_lookup - find the corresponding lport by netdev + * @netdev: ptr to net_device + * + * Returns: 0 for success + */ +struct fc_lport *fcoe_hostlist_lookup(const struct net_device *netdev) +{ + struct fcoe_softc *fc; + + fc = fcoe_hostlist_lookup_softc(netdev); + + return (fc) ? fc->lp : NULL; +} +EXPORT_SYMBOL_GPL(fcoe_hostlist_lookup); + +/* + * fcoe_hostlist_add - add a lport to lports list + * @lp: ptr to the fc_lport to badded + * + * Returns: 0 for success + */ +int fcoe_hostlist_add(const struct fc_lport *lp) +{ + struct fcoe_softc *fc; + + fc = fcoe_hostlist_lookup_softc(fcoe_netdev(lp)); + if (!fc) { + fc = fcoe_softc(lp); + write_lock_bh(&fcoe_hostlist_lock); + list_add_tail(&fc->list, &fcoe_hostlist); + write_unlock_bh(&fcoe_hostlist_lock); + } + return 0; +} +EXPORT_SYMBOL_GPL(fcoe_hostlist_add); + +/* + * fcoe_hostlist_remove - remove a lport from lports list + * @lp: ptr to the fc_lport to badded + * + * Returns: 0 for success + */ +int fcoe_hostlist_remove(const struct fc_lport *lp) +{ + struct fcoe_softc *fc; + + fc = fcoe_hostlist_lookup_softc(fcoe_netdev(lp)); + BUG_ON(!fc); + write_lock_bh(&fcoe_hostlist_lock); + list_del(&fc->list); + write_unlock_bh(&fcoe_hostlist_lock); + + return 0; +} +EXPORT_SYMBOL_GPL(fcoe_hostlist_remove); + +/** + * fcoe_libfc_config - sets up libfc related properties for lport + * @lp: ptr to the fc_lport + * @tt: libfc function template + * + * Returns : 0 for success + **/ +int fcoe_libfc_config(struct fc_lport *lp, struct libfc_function_template *tt) +{ + /* Set the function pointers set by the LLDD */ + memcpy(&lp->tt, tt, sizeof(*tt)); + if (fc_fcp_init(lp)) + return -ENOMEM; + fc_exch_init(lp); + fc_elsct_init(lp); + fc_lport_init(lp); + fc_rport_init(lp); + fc_disc_init(lp); + + return 0; +} +EXPORT_SYMBOL_GPL(fcoe_libfc_config); + +/** + * fcoe_init - fcoe module loading initialization + * + * Initialization routine + * 1. Will create fc transport software structure + * 2. initialize the link list of port information structure + * + * Returns 0 on success, negative on failure + **/ +static int __init fcoe_init(void) +{ + int cpu; + struct fcoe_percpu_s *p; + + + INIT_LIST_HEAD(&fcoe_hostlist); + rwlock_init(&fcoe_hostlist_lock); + +#ifdef CONFIG_HOTPLUG_CPU + register_cpu_notifier(&fcoe_cpu_notifier); +#endif /* CONFIG_HOTPLUG_CPU */ + + /* + * initialize per CPU interrupt thread + */ + for_each_online_cpu(cpu) { + p = kzalloc(sizeof(struct fcoe_percpu_s), GFP_KERNEL); + if (p) { + p->thread = kthread_create(fcoe_percpu_receive_thread, + (void *)p, + "fcoethread/%d", cpu); + + /* + * if there is no error then bind the thread to the cpu + * initialize the semaphore and skb queue head + */ + if (likely(!IS_ERR(p->thread))) { + p->cpu = cpu; + fcoe_percpu[cpu] = p; + skb_queue_head_init(&p->fcoe_rx_list); + kthread_bind(p->thread, cpu); + wake_up_process(p->thread); + } else { + fcoe_percpu[cpu] = NULL; + kfree(p); + + } + } + } + + /* + * setup link change notification + */ + fcoe_dev_setup(); + + init_timer(&fcoe_timer); + fcoe_timer.data = 0; + fcoe_timer.function = fcoe_watchdog; + fcoe_timer.expires = (jiffies + (10 * HZ)); + add_timer(&fcoe_timer); + + /* initiatlize the fcoe transport */ + fcoe_transport_init(); + + fcoe_sw_init(); + + return 0; +} +module_init(fcoe_init); + +/** + * fcoe_exit - fcoe module unloading cleanup + * + * Returns 0 on success, negative on failure + **/ +static void __exit fcoe_exit(void) +{ + u32 idx; + struct fcoe_softc *fc, *tmp; + struct fcoe_percpu_s *p; + struct sk_buff *skb; + + /* + * Stop all call back interfaces + */ +#ifdef CONFIG_HOTPLUG_CPU + unregister_cpu_notifier(&fcoe_cpu_notifier); +#endif /* CONFIG_HOTPLUG_CPU */ + fcoe_dev_cleanup(); + + /* + * stop timer + */ + del_timer_sync(&fcoe_timer); + + /* releases the assocaited fcoe transport for each lport */ + list_for_each_entry_safe(fc, tmp, &fcoe_hostlist, list) + fcoe_transport_release(fc->real_dev); + + for (idx = 0; idx < NR_CPUS; idx++) { + if (fcoe_percpu[idx]) { + kthread_stop(fcoe_percpu[idx]->thread); + p = fcoe_percpu[idx]; + spin_lock_bh(&p->fcoe_rx_list.lock); + while ((skb = __skb_dequeue(&p->fcoe_rx_list)) != NULL) + kfree_skb(skb); + spin_unlock_bh(&p->fcoe_rx_list.lock); + if (fcoe_percpu[idx]->crc_eof_page) + put_page(fcoe_percpu[idx]->crc_eof_page); + kfree(fcoe_percpu[idx]); + } + } + + /* remove sw trasnport */ + fcoe_sw_exit(); + + /* detach the transport */ + fcoe_transport_exit(); +} +module_exit(fcoe_exit); diff --git a/drivers/scsi/fdomain.c b/drivers/scsi/fdomain.c index 56f4e6bf..32eef66 100644 --- a/drivers/scsi/fdomain.c +++ b/drivers/scsi/fdomain.c @@ -3,7 +3,7 @@ * Revised: Mon Dec 28 21:59:02 1998 by faith@acm.org * Author: Rickard E. Faith, faith@cs.unc.edu * Copyright 1992-1996, 1998 Rickard E. Faith (faith@acm.org) - * Shared IRQ supported added 7/7/2001 Alan Cox <alan@redhat.com> + * Shared IRQ supported added 7/7/2001 Alan Cox <alan@lxorguk.ukuu.org.uk> * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/drivers/scsi/ibmmca.c b/drivers/scsi/ibmmca.c index 4d15a62..9c1e6a5 100644 --- a/drivers/scsi/ibmmca.c +++ b/drivers/scsi/ibmmca.c @@ -10,7 +10,7 @@ See the WWW-page: http://www.uni-mainz.de/~langm000/linux.html for latest updates, info and ADF-files for adapters supported by this driver. - Alan Cox <alan@redhat.com> + Alan Cox <alan@lxorguk.ukuu.org.uk> Updated for Linux 2.5.45 to use the new error handler, cleaned up the lock macros and did a few unavoidable locking tweaks, plus one locking fix in the irq and completion path. diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 7650707..44f202f 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -121,6 +121,7 @@ static const struct { { IBMVFC_VIOS_FAILURE, IBMVFC_TRANS_CANCELLED, DID_ABORT, 0, 1, "transaction cancelled" }, { IBMVFC_VIOS_FAILURE, IBMVFC_TRANS_CANCELLED_IMPLICIT, DID_ABORT, 0, 1, "transaction cancelled implicit" }, { IBMVFC_VIOS_FAILURE, IBMVFC_INSUFFICIENT_RESOURCE, DID_REQUEUE, 1, 1, "insufficient resources" }, + { IBMVFC_VIOS_FAILURE, IBMVFC_PLOGI_REQUIRED, DID_ERROR, 0, 1, "port login required" }, { IBMVFC_VIOS_FAILURE, IBMVFC_COMMAND_FAILED, DID_ERROR, 1, 1, "command failed" }, { IBMVFC_FC_FAILURE, IBMVFC_INVALID_ELS_CMD_CODE, DID_ERROR, 0, 1, "invalid ELS command code" }, @@ -278,13 +279,6 @@ static int ibmvfc_get_err_result(struct ibmvfc_cmd *vfc_cmd) rsp->data.info.rsp_code)) return DID_ERROR << 16; - if (!vfc_cmd->status) { - if (rsp->flags & FCP_RESID_OVER) - return rsp->scsi_status | (DID_ERROR << 16); - else - return rsp->scsi_status | (DID_OK << 16); - } - err = ibmvfc_get_err_index(vfc_cmd->status, vfc_cmd->error); if (err >= 0) return rsp->scsi_status | (cmd_status[err].result << 16); @@ -503,6 +497,7 @@ static void ibmvfc_set_host_action(struct ibmvfc_host *vhost, case IBMVFC_HOST_ACTION_INIT: case IBMVFC_HOST_ACTION_TGT_DEL: case IBMVFC_HOST_ACTION_QUERY_TGTS: + case IBMVFC_HOST_ACTION_TGT_DEL_FAILED: case IBMVFC_HOST_ACTION_TGT_ADD: case IBMVFC_HOST_ACTION_NONE: default: @@ -566,7 +561,7 @@ static void ibmvfc_init_host(struct ibmvfc_host *vhost, int relogin) struct ibmvfc_target *tgt; if (vhost->action == IBMVFC_HOST_ACTION_INIT_WAIT) { - if (++vhost->init_retries > IBMVFC_MAX_INIT_RETRIES) { + if (++vhost->init_retries > IBMVFC_MAX_HOST_INIT_RETRIES) { dev_err(vhost->dev, "Host initialization retries exceeded. Taking adapter offline\n"); ibmvfc_link_down(vhost, IBMVFC_HOST_OFFLINE); @@ -765,6 +760,9 @@ static void ibmvfc_scsi_eh_done(struct ibmvfc_event *evt) cmnd->scsi_done(cmnd); } + if (evt->eh_comp) + complete(evt->eh_comp); + ibmvfc_free_event(evt); } @@ -847,11 +845,12 @@ static void ibmvfc_reset_host(struct ibmvfc_host *vhost) static void ibmvfc_retry_host_init(struct ibmvfc_host *vhost) { if (vhost->action == IBMVFC_HOST_ACTION_INIT_WAIT) { - if (++vhost->init_retries > IBMVFC_MAX_INIT_RETRIES) { + vhost->delay_init = 1; + if (++vhost->init_retries > IBMVFC_MAX_HOST_INIT_RETRIES) { dev_err(vhost->dev, "Host initialization retries exceeded. Taking adapter offline\n"); ibmvfc_link_down(vhost, IBMVFC_HOST_OFFLINE); - } else if (vhost->init_retries == IBMVFC_MAX_INIT_RETRIES) + } else if (vhost->init_retries == IBMVFC_MAX_HOST_INIT_RETRIES) __ibmvfc_reset_host(vhost); else ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT); @@ -1252,6 +1251,7 @@ static void ibmvfc_init_event(struct ibmvfc_event *evt, evt->sync_iu = NULL; evt->crq.format = format; evt->done = done; + evt->eh_comp = NULL; } /** @@ -1381,6 +1381,8 @@ static int ibmvfc_send_event(struct ibmvfc_event *evt, add_timer(&evt->timer); } + mb(); + if ((rc = ibmvfc_send_crq(vhost, crq_as_u64[0], crq_as_u64[1]))) { list_del(&evt->queue); del_timer(&evt->timer); @@ -1477,6 +1479,11 @@ static void ibmvfc_scsi_done(struct ibmvfc_event *evt) sense_len = SCSI_SENSE_BUFFERSIZE - rsp_len; if ((rsp->flags & FCP_SNS_LEN_VALID) && rsp->fcp_sense_len && rsp_len <= 8) memcpy(cmnd->sense_buffer, rsp->data.sense + rsp_len, sense_len); + if ((vfc_cmd->status & IBMVFC_VIOS_FAILURE) && (vfc_cmd->error == IBMVFC_PLOGI_REQUIRED)) + ibmvfc_reinit_host(evt->vhost); + + if (!cmnd->result && (!scsi_get_resid(cmnd) || (rsp->flags & FCP_RESID_OVER))) + cmnd->result = (DID_ERROR << 16); ibmvfc_log_error(evt); } @@ -1489,6 +1496,9 @@ static void ibmvfc_scsi_done(struct ibmvfc_event *evt) cmnd->scsi_done(cmnd); } + if (evt->eh_comp) + complete(evt->eh_comp); + ibmvfc_free_event(evt); } @@ -1627,7 +1637,7 @@ static int ibmvfc_reset_device(struct scsi_device *sdev, int type, char *desc) struct ibmvfc_host *vhost = shost_priv(sdev->host); struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); struct ibmvfc_cmd *tmf; - struct ibmvfc_event *evt; + struct ibmvfc_event *evt = NULL; union ibmvfc_iu rsp_iu; struct ibmvfc_fcp_rsp *fc_rsp = &rsp_iu.cmd.rsp; int rsp_rc = -EBUSY; @@ -1789,7 +1799,8 @@ static int ibmvfc_abort_task_set(struct scsi_device *sdev) static int ibmvfc_cancel_all(struct scsi_device *sdev, int type) { struct ibmvfc_host *vhost = shost_priv(sdev->host); - struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); + struct scsi_target *starget = scsi_target(sdev); + struct fc_rport *rport = starget_to_rport(starget); struct ibmvfc_tmf *tmf; struct ibmvfc_event *evt, *found_evt; union ibmvfc_iu rsp; @@ -1827,7 +1838,7 @@ static int ibmvfc_cancel_all(struct scsi_device *sdev, int type) int_to_scsilun(sdev->lun, &tmf->lun); tmf->flags = (type | IBMVFC_TMF_LUA_VALID); tmf->cancel_key = (unsigned long)sdev->hostdata; - tmf->my_cancel_key = (IBMVFC_TMF_CANCEL_KEY | (unsigned long)sdev->hostdata); + tmf->my_cancel_key = (unsigned long)starget->hostdata; evt->sync_iu = &rsp; init_completion(&evt->comp); @@ -1859,6 +1870,91 @@ static int ibmvfc_cancel_all(struct scsi_device *sdev, int type) } /** + * ibmvfc_match_target - Match function for specified target + * @evt: ibmvfc event struct + * @device: device to match (starget) + * + * Returns: + * 1 if event matches starget / 0 if event does not match starget + **/ +static int ibmvfc_match_target(struct ibmvfc_event *evt, void *device) +{ + if (evt->cmnd && scsi_target(evt->cmnd->device) == device) + return 1; + return 0; +} + +/** + * ibmvfc_match_lun - Match function for specified LUN + * @evt: ibmvfc event struct + * @device: device to match (sdev) + * + * Returns: + * 1 if event matches sdev / 0 if event does not match sdev + **/ +static int ibmvfc_match_lun(struct ibmvfc_event *evt, void *device) +{ + if (evt->cmnd && evt->cmnd->device == device) + return 1; + return 0; +} + +/** + * ibmvfc_wait_for_ops - Wait for ops to complete + * @vhost: ibmvfc host struct + * @device: device to match (starget or sdev) + * @match: match function + * + * Returns: + * SUCCESS / FAILED + **/ +static int ibmvfc_wait_for_ops(struct ibmvfc_host *vhost, void *device, + int (*match) (struct ibmvfc_event *, void *)) +{ + struct ibmvfc_event *evt; + DECLARE_COMPLETION_ONSTACK(comp); + int wait; + unsigned long flags; + signed long timeout = init_timeout * HZ; + + ENTER; + do { + wait = 0; + spin_lock_irqsave(vhost->host->host_lock, flags); + list_for_each_entry(evt, &vhost->sent, queue) { + if (match(evt, device)) { + evt->eh_comp = ∁ + wait++; + } + } + spin_unlock_irqrestore(vhost->host->host_lock, flags); + + if (wait) { + timeout = wait_for_completion_timeout(&comp, timeout); + + if (!timeout) { + wait = 0; + spin_lock_irqsave(vhost->host->host_lock, flags); + list_for_each_entry(evt, &vhost->sent, queue) { + if (match(evt, device)) { + evt->eh_comp = NULL; + wait++; + } + } + spin_unlock_irqrestore(vhost->host->host_lock, flags); + if (wait) + dev_err(vhost->dev, "Timed out waiting for aborted commands\n"); + LEAVE; + return wait ? FAILED : SUCCESS; + } + } + } while (wait); + + LEAVE; + return SUCCESS; +} + +/** * ibmvfc_eh_abort_handler - Abort a command * @cmd: scsi command to abort * @@ -1867,29 +1963,21 @@ static int ibmvfc_cancel_all(struct scsi_device *sdev, int type) **/ static int ibmvfc_eh_abort_handler(struct scsi_cmnd *cmd) { - struct ibmvfc_host *vhost = shost_priv(cmd->device->host); - struct ibmvfc_event *evt, *pos; + struct scsi_device *sdev = cmd->device; + struct ibmvfc_host *vhost = shost_priv(sdev->host); int cancel_rc, abort_rc; - unsigned long flags; + int rc = FAILED; ENTER; ibmvfc_wait_while_resetting(vhost); - cancel_rc = ibmvfc_cancel_all(cmd->device, IBMVFC_TMF_ABORT_TASK_SET); - abort_rc = ibmvfc_abort_task_set(cmd->device); + cancel_rc = ibmvfc_cancel_all(sdev, IBMVFC_TMF_ABORT_TASK_SET); + abort_rc = ibmvfc_abort_task_set(sdev); - if (!cancel_rc && !abort_rc) { - spin_lock_irqsave(vhost->host->host_lock, flags); - list_for_each_entry_safe(evt, pos, &vhost->sent, queue) { - if (evt->cmnd && evt->cmnd->device == cmd->device) - ibmvfc_fail_request(evt, DID_ABORT); - } - spin_unlock_irqrestore(vhost->host->host_lock, flags); - LEAVE; - return SUCCESS; - } + if (!cancel_rc && !abort_rc) + rc = ibmvfc_wait_for_ops(vhost, sdev, ibmvfc_match_lun); LEAVE; - return FAILED; + return rc; } /** @@ -1901,29 +1989,21 @@ static int ibmvfc_eh_abort_handler(struct scsi_cmnd *cmd) **/ static int ibmvfc_eh_device_reset_handler(struct scsi_cmnd *cmd) { - struct ibmvfc_host *vhost = shost_priv(cmd->device->host); - struct ibmvfc_event *evt, *pos; + struct scsi_device *sdev = cmd->device; + struct ibmvfc_host *vhost = shost_priv(sdev->host); int cancel_rc, reset_rc; - unsigned long flags; + int rc = FAILED; ENTER; ibmvfc_wait_while_resetting(vhost); - cancel_rc = ibmvfc_cancel_all(cmd->device, IBMVFC_TMF_LUN_RESET); - reset_rc = ibmvfc_reset_device(cmd->device, IBMVFC_LUN_RESET, "LUN"); + cancel_rc = ibmvfc_cancel_all(sdev, IBMVFC_TMF_LUN_RESET); + reset_rc = ibmvfc_reset_device(sdev, IBMVFC_LUN_RESET, "LUN"); - if (!cancel_rc && !reset_rc) { - spin_lock_irqsave(vhost->host->host_lock, flags); - list_for_each_entry_safe(evt, pos, &vhost->sent, queue) { - if (evt->cmnd && evt->cmnd->device == cmd->device) - ibmvfc_fail_request(evt, DID_ABORT); - } - spin_unlock_irqrestore(vhost->host->host_lock, flags); - LEAVE; - return SUCCESS; - } + if (!cancel_rc && !reset_rc) + rc = ibmvfc_wait_for_ops(vhost, sdev, ibmvfc_match_lun); LEAVE; - return FAILED; + return rc; } /** @@ -1959,31 +2039,23 @@ static void ibmvfc_dev_abort_all(struct scsi_device *sdev, void *data) **/ static int ibmvfc_eh_target_reset_handler(struct scsi_cmnd *cmd) { - struct ibmvfc_host *vhost = shost_priv(cmd->device->host); - struct scsi_target *starget = scsi_target(cmd->device); - struct ibmvfc_event *evt, *pos; + struct scsi_device *sdev = cmd->device; + struct ibmvfc_host *vhost = shost_priv(sdev->host); + struct scsi_target *starget = scsi_target(sdev); int reset_rc; + int rc = FAILED; unsigned long cancel_rc = 0; - unsigned long flags; ENTER; ibmvfc_wait_while_resetting(vhost); starget_for_each_device(starget, &cancel_rc, ibmvfc_dev_cancel_all); - reset_rc = ibmvfc_reset_device(cmd->device, IBMVFC_TARGET_RESET, "target"); + reset_rc = ibmvfc_reset_device(sdev, IBMVFC_TARGET_RESET, "target"); - if (!cancel_rc && !reset_rc) { - spin_lock_irqsave(vhost->host->host_lock, flags); - list_for_each_entry_safe(evt, pos, &vhost->sent, queue) { - if (evt->cmnd && scsi_target(evt->cmnd->device) == starget) - ibmvfc_fail_request(evt, DID_ABORT); - } - spin_unlock_irqrestore(vhost->host->host_lock, flags); - LEAVE; - return SUCCESS; - } + if (!cancel_rc && !reset_rc) + rc = ibmvfc_wait_for_ops(vhost, starget, ibmvfc_match_target); LEAVE; - return FAILED; + return rc; } /** @@ -2013,23 +2085,18 @@ static void ibmvfc_terminate_rport_io(struct fc_rport *rport) struct scsi_target *starget = to_scsi_target(&rport->dev); struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); struct ibmvfc_host *vhost = shost_priv(shost); - struct ibmvfc_event *evt, *pos; unsigned long cancel_rc = 0; unsigned long abort_rc = 0; - unsigned long flags; + int rc = FAILED; ENTER; starget_for_each_device(starget, &cancel_rc, ibmvfc_dev_cancel_all); starget_for_each_device(starget, &abort_rc, ibmvfc_dev_abort_all); - if (!cancel_rc && !abort_rc) { - spin_lock_irqsave(shost->host_lock, flags); - list_for_each_entry_safe(evt, pos, &vhost->sent, queue) { - if (evt->cmnd && scsi_target(evt->cmnd->device) == starget) - ibmvfc_fail_request(evt, DID_ABORT); - } - spin_unlock_irqrestore(shost->host_lock, flags); - } else + if (!cancel_rc && !abort_rc) + rc = ibmvfc_wait_for_ops(vhost, starget, ibmvfc_match_target); + + if (rc == FAILED) ibmvfc_issue_fc_host_lip(shost); LEAVE; } @@ -2089,15 +2156,17 @@ static void ibmvfc_handle_async(struct ibmvfc_async_crq *crq, case IBMVFC_AE_LINK_UP: case IBMVFC_AE_RESUME: vhost->events_to_log |= IBMVFC_AE_LINKUP; - ibmvfc_init_host(vhost, 1); + vhost->delay_init = 1; + __ibmvfc_reset_host(vhost); break; case IBMVFC_AE_SCN_FABRIC: + case IBMVFC_AE_SCN_DOMAIN: vhost->events_to_log |= IBMVFC_AE_RSCN; - ibmvfc_init_host(vhost, 1); + vhost->delay_init = 1; + __ibmvfc_reset_host(vhost); break; case IBMVFC_AE_SCN_NPORT: case IBMVFC_AE_SCN_GROUP: - case IBMVFC_AE_SCN_DOMAIN: vhost->events_to_log |= IBMVFC_AE_RSCN; case IBMVFC_AE_ELS_LOGO: case IBMVFC_AE_ELS_PRLO: @@ -2263,6 +2332,28 @@ static int ibmvfc_slave_alloc(struct scsi_device *sdev) } /** + * ibmvfc_target_alloc - Setup the target's task set value + * @starget: struct scsi_target + * + * Set the target's task set value so that error handling works as + * expected. + * + * Returns: + * 0 on success / -ENXIO if device does not exist + **/ +static int ibmvfc_target_alloc(struct scsi_target *starget) +{ + struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); + struct ibmvfc_host *vhost = shost_priv(shost); + unsigned long flags = 0; + + spin_lock_irqsave(shost->host_lock, flags); + starget->hostdata = (void *)(unsigned long)vhost->task_set++; + spin_unlock_irqrestore(shost->host_lock, flags); + return 0; +} + +/** * ibmvfc_slave_configure - Configure the device * @sdev: struct scsi_device device to configure * @@ -2541,6 +2632,7 @@ static struct scsi_host_template driver_template = { .eh_host_reset_handler = ibmvfc_eh_host_reset_handler, .slave_alloc = ibmvfc_slave_alloc, .slave_configure = ibmvfc_slave_configure, + .target_alloc = ibmvfc_target_alloc, .scan_finished = ibmvfc_scan_finished, .change_queue_depth = ibmvfc_change_queue_depth, .change_queue_type = ibmvfc_change_queue_type, @@ -2637,7 +2729,7 @@ static irqreturn_t ibmvfc_interrupt(int irq, void *dev_instance) } else if ((async = ibmvfc_next_async_crq(vhost)) != NULL) { vio_disable_interrupts(vdev); ibmvfc_handle_async(async, vhost); - crq->valid = 0; + async->valid = 0; } else done = 1; } @@ -2669,7 +2761,7 @@ static void ibmvfc_init_tgt(struct ibmvfc_target *tgt, static void ibmvfc_retry_tgt_init(struct ibmvfc_target *tgt, void (*job_step) (struct ibmvfc_target *)) { - if (++tgt->init_retries > IBMVFC_MAX_INIT_RETRIES) { + if (++tgt->init_retries > IBMVFC_MAX_TGT_INIT_RETRIES) { ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); wake_up(&tgt->vhost->work_wait_q); } else @@ -2708,6 +2800,8 @@ static void ibmvfc_tgt_prli_done(struct ibmvfc_event *evt) rsp->status, rsp->error, status); if (ibmvfc_retry_cmd(rsp->status, rsp->error)) ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_prli); + else + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); break; }; @@ -2802,6 +2896,8 @@ static void ibmvfc_tgt_plogi_done(struct ibmvfc_event *evt) if (ibmvfc_retry_cmd(rsp->status, rsp->error)) ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_plogi); + else + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); break; }; @@ -3093,6 +3189,8 @@ static void ibmvfc_tgt_query_target_done(struct ibmvfc_event *evt) ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); else if (ibmvfc_retry_cmd(rsp->status, rsp->error)) ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_query_target); + else + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); break; }; @@ -3423,6 +3521,7 @@ static int __ibmvfc_work_to_do(struct ibmvfc_host *vhost) case IBMVFC_HOST_ACTION_ALLOC_TGTS: case IBMVFC_HOST_ACTION_TGT_ADD: case IBMVFC_HOST_ACTION_TGT_DEL: + case IBMVFC_HOST_ACTION_TGT_DEL_FAILED: case IBMVFC_HOST_ACTION_QUERY: default: break; @@ -3519,7 +3618,13 @@ static void ibmvfc_do_work(struct ibmvfc_host *vhost) break; case IBMVFC_HOST_ACTION_INIT: BUG_ON(vhost->state != IBMVFC_INITIALIZING); - vhost->job_step(vhost); + if (vhost->delay_init) { + vhost->delay_init = 0; + spin_unlock_irqrestore(vhost->host->host_lock, flags); + ssleep(15); + return; + } else + vhost->job_step(vhost); break; case IBMVFC_HOST_ACTION_QUERY: list_for_each_entry(tgt, &vhost->targets, queue) @@ -3538,6 +3643,7 @@ static void ibmvfc_do_work(struct ibmvfc_host *vhost) ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_TGT_DEL); break; case IBMVFC_HOST_ACTION_TGT_DEL: + case IBMVFC_HOST_ACTION_TGT_DEL_FAILED: list_for_each_entry(tgt, &vhost->targets, queue) { if (tgt->action == IBMVFC_TGT_ACTION_DEL_RPORT) { tgt_dbg(tgt, "Deleting rport\n"); @@ -3553,8 +3659,17 @@ static void ibmvfc_do_work(struct ibmvfc_host *vhost) } if (vhost->state == IBMVFC_INITIALIZING) { - ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT); - vhost->job_step = ibmvfc_discover_targets; + if (vhost->action == IBMVFC_HOST_ACTION_TGT_DEL_FAILED) { + ibmvfc_set_host_state(vhost, IBMVFC_ACTIVE); + ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_TGT_ADD); + vhost->init_retries = 0; + spin_unlock_irqrestore(vhost->host->host_lock, flags); + scsi_unblock_requests(vhost->host); + return; + } else { + ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT); + vhost->job_step = ibmvfc_discover_targets; + } } else { ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_NONE); spin_unlock_irqrestore(vhost->host->host_lock, flags); @@ -3577,14 +3692,8 @@ static void ibmvfc_do_work(struct ibmvfc_host *vhost) } } - if (!ibmvfc_dev_init_to_do(vhost)) { - ibmvfc_set_host_state(vhost, IBMVFC_ACTIVE); - ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_TGT_ADD); - vhost->init_retries = 0; - spin_unlock_irqrestore(vhost->host->host_lock, flags); - scsi_unblock_requests(vhost->host); - return; - } + if (!ibmvfc_dev_init_to_do(vhost)) + ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_TGT_DEL_FAILED); break; case IBMVFC_HOST_ACTION_TGT_ADD: list_for_each_entry(tgt, &vhost->targets, queue) { @@ -3592,16 +3701,6 @@ static void ibmvfc_do_work(struct ibmvfc_host *vhost) spin_unlock_irqrestore(vhost->host->host_lock, flags); ibmvfc_tgt_add_rport(tgt); return; - } else if (tgt->action == IBMVFC_TGT_ACTION_DEL_RPORT) { - tgt_dbg(tgt, "Deleting rport\n"); - rport = tgt->rport; - tgt->rport = NULL; - list_del(&tgt->queue); - spin_unlock_irqrestore(vhost->host->host_lock, flags); - if (rport) - fc_remote_port_delete(rport); - kref_put(&tgt->kref, ibmvfc_release_tgt); - return; } } diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index fb3177a..babdf3d 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -29,11 +29,11 @@ #include "viosrp.h" #define IBMVFC_NAME "ibmvfc" -#define IBMVFC_DRIVER_VERSION "1.0.2" -#define IBMVFC_DRIVER_DATE "(August 14, 2008)" +#define IBMVFC_DRIVER_VERSION "1.0.4" +#define IBMVFC_DRIVER_DATE "(November 14, 2008)" #define IBMVFC_DEFAULT_TIMEOUT 15 -#define IBMVFC_INIT_TIMEOUT 30 +#define IBMVFC_INIT_TIMEOUT 120 #define IBMVFC_MAX_REQUESTS_DEFAULT 100 #define IBMVFC_DEBUG 0 @@ -43,7 +43,8 @@ #define IBMVFC_MAX_DISC_THREADS 4 #define IBMVFC_TGT_MEMPOOL_SZ 64 #define IBMVFC_MAX_CMDS_PER_LUN 64 -#define IBMVFC_MAX_INIT_RETRIES 3 +#define IBMVFC_MAX_HOST_INIT_RETRIES 6 +#define IBMVFC_MAX_TGT_INIT_RETRIES 3 #define IBMVFC_DEV_LOSS_TMO (5 * 60) #define IBMVFC_DEFAULT_LOG_LEVEL 2 #define IBMVFC_MAX_CDB_LEN 16 @@ -109,6 +110,7 @@ enum ibmvfc_vios_errors { IBMVFC_TRANS_CANCELLED = 0x0006, IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007, IBMVFC_INSUFFICIENT_RESOURCE = 0x0008, + IBMVFC_PLOGI_REQUIRED = 0x0010, IBMVFC_COMMAND_FAILED = 0x8000, }; @@ -337,7 +339,6 @@ struct ibmvfc_tmf { #define IBMVFC_TMF_LUA_VALID 0x40 u32 cancel_key; u32 my_cancel_key; -#define IBMVFC_TMF_CANCEL_KEY 0x80000000 u32 pad; u64 reserved[2]; }__attribute__((packed, aligned (8))); @@ -524,10 +525,10 @@ enum ibmvfc_async_event { }; struct ibmvfc_crq { - u8 valid; - u8 format; + volatile u8 valid; + volatile u8 format; u8 reserved[6]; - u64 ioba; + volatile u64 ioba; }__attribute__((packed, aligned (8))); struct ibmvfc_crq_queue { @@ -537,13 +538,13 @@ struct ibmvfc_crq_queue { }; struct ibmvfc_async_crq { - u8 valid; + volatile u8 valid; u8 pad[3]; u32 pad2; - u64 event; - u64 scsi_id; - u64 wwpn; - u64 node_name; + volatile u64 event; + volatile u64 scsi_id; + volatile u64 wwpn; + volatile u64 node_name; u64 reserved; }__attribute__((packed, aligned (8))); @@ -606,6 +607,7 @@ struct ibmvfc_event { struct srp_direct_buf *ext_list; dma_addr_t ext_list_token; struct completion comp; + struct completion *eh_comp; struct timer_list timer; }; @@ -626,6 +628,7 @@ enum ibmvfc_host_action { IBMVFC_HOST_ACTION_TGT_DEL, IBMVFC_HOST_ACTION_ALLOC_TGTS, IBMVFC_HOST_ACTION_TGT_INIT, + IBMVFC_HOST_ACTION_TGT_DEL_FAILED, IBMVFC_HOST_ACTION_TGT_ADD, }; @@ -671,6 +674,7 @@ struct ibmvfc_host { int discovery_threads; int client_migrated; int reinit; + int delay_init; int events_to_log; #define IBMVFC_AE_LINKUP 0x0001 #define IBMVFC_AE_LINKDOWN 0x0002 @@ -700,7 +704,7 @@ struct ibmvfc_host { #define ibmvfc_log(vhost, level, ...) \ do { \ - if (level >= (vhost)->log_level) \ + if ((vhost)->log_level >= level) \ dev_err((vhost)->dev, ##__VA_ARGS__); \ } while (0) diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 6cad175..868d35e 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -107,7 +107,7 @@ module_param_named(max_channel, max_channel, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(max_channel, "Largest channel value"); module_param_named(init_timeout, init_timeout, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(init_timeout, "Initialization timeout in seconds"); -module_param_named(max_requests, max_requests, int, S_IRUGO | S_IWUSR); +module_param_named(max_requests, max_requests, int, S_IRUGO); MODULE_PARM_DESC(max_requests, "Maximum requests for this adapter"); /* ------------------------------------------------------------ @@ -1657,7 +1657,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id) vdev->dev.driver_data = NULL; - driver_template.can_queue = max_requests; + driver_template.can_queue = max_requests - 2; host = scsi_host_alloc(&driver_template, sizeof(*hostdata)); if (!host) { dev_err(&vdev->dev, "couldn't allocate host data\n"); diff --git a/drivers/scsi/in2000.c b/drivers/scsi/in2000.c index 8053b1e..52bdc6d 100644 --- a/drivers/scsi/in2000.c +++ b/drivers/scsi/in2000.c @@ -107,7 +107,7 @@ * this thing into as good a shape as possible, and I'm positive * there are lots of lurking bugs and "Stupid Places". * - * Updated for Linux 2.5 by Alan Cox <alan@redhat.com> + * Updated for Linux 2.5 by Alan Cox <alan@lxorguk.ukuu.org.uk> * - Using new_eh handler * - Hopefully got all the locking right again * See "FIXME" notes for items that could do with more work diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c index e3f7397..5529518 100644 --- a/drivers/scsi/initio.c +++ b/drivers/scsi/initio.c @@ -4,7 +4,7 @@ * Copyright (c) 1994-1998 Initio Corporation * Copyright (c) 1998 Bas Vermeulen <bvermeul@blackstar.xs4all.nl> * Copyright (c) 2004 Christoph Hellwig <hch@lst.de> - * Copyright (c) 2007 Red Hat <alan@redhat.com> + * Copyright (c) 2007 Red Hat * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/scsi/initio.h b/drivers/scsi/initio.h index cb48efa..e58af9e 100644 --- a/drivers/scsi/initio.h +++ b/drivers/scsi/initio.h @@ -4,7 +4,7 @@ * Copyright (c) 1994-1998 Initio Corporation * All rights reserved. * - * Cleanups (c) Copyright 2007 Red Hat <alan@redhat.com> + * Cleanups (c) Copyright 2007 Red Hat <alan@lxorguk.ukuu.org.uk> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index ded854a..0edfb1f 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -5389,9 +5389,9 @@ static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); wake_up_all(&ioa_cfg->reset_wait_q); - spin_unlock_irq(ioa_cfg->host->host_lock); + spin_unlock(ioa_cfg->host->host_lock); scsi_unblock_requests(ioa_cfg->host); - spin_lock_irq(ioa_cfg->host->host_lock); + spin_lock(ioa_cfg->host->host_lock); if (!ioa_cfg->allow_cmds) scsi_block_requests(ioa_cfg->host); @@ -7473,7 +7473,7 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev, goto out_scsi_host_put; } - ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0)); + ipr_regs = pci_ioremap_bar(pdev, 0); if (!ipr_regs) { dev_err(&pdev->dev, diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h index 4871dd1..5945914 100644 --- a/drivers/scsi/ipr.h +++ b/drivers/scsi/ipr.h @@ -19,7 +19,7 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * - * Alan Cox <alan@redhat.com> - Removed several careless u32/dma_addr_t errors + * Alan Cox <alan@lxorguk.ukuu.org.uk> - Removed several careless u32/dma_addr_t errors * that broke 64bit platforms. */ diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index e11bce6..23808df 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -27,7 +27,6 @@ */ #include <linux/types.h> -#include <linux/list.h> #include <linux/inet.h> #include <linux/file.h> #include <linux/blkdev.h> @@ -44,12 +43,12 @@ #include "iscsi_tcp.h" -MODULE_AUTHOR("Dmitry Yusupov <dmitry_yus@yahoo.com>, " +MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu>, " + "Dmitry Yusupov <dmitry_yus@yahoo.com>, " "Alex Aizman <itn780@yahoo.com>"); MODULE_DESCRIPTION("iSCSI/TCP data-path"); MODULE_LICENSE("GPL"); #undef DEBUG_TCP -#define DEBUG_ASSERT #ifdef DEBUG_TCP #define debug_tcp(fmt...) printk(KERN_INFO "tcp: " fmt) @@ -57,934 +56,41 @@ MODULE_LICENSE("GPL"); #define debug_tcp(fmt...) #endif -#ifndef DEBUG_ASSERT -#ifdef BUG_ON -#undef BUG_ON -#endif -#define BUG_ON(expr) -#endif - -static struct scsi_transport_template *iscsi_tcp_scsi_transport; -static struct scsi_host_template iscsi_sht; -static struct iscsi_transport iscsi_tcp_transport; +static struct scsi_transport_template *iscsi_sw_tcp_scsi_transport; +static struct scsi_host_template iscsi_sw_tcp_sht; +static struct iscsi_transport iscsi_sw_tcp_transport; static unsigned int iscsi_max_lun = 512; module_param_named(max_lun, iscsi_max_lun, uint, S_IRUGO); -static int iscsi_tcp_hdr_recv_done(struct iscsi_tcp_conn *tcp_conn, - struct iscsi_segment *segment); - -/* - * Scatterlist handling: inside the iscsi_segment, we - * remember an index into the scatterlist, and set data/size - * to the current scatterlist entry. For highmem pages, we - * kmap as needed. - * - * Note that the page is unmapped when we return from - * TCP's data_ready handler, so we may end up mapping and - * unmapping the same page repeatedly. The whole reason - * for this is that we shouldn't keep the page mapped - * outside the softirq. - */ - -/** - * iscsi_tcp_segment_init_sg - init indicated scatterlist entry - * @segment: the buffer object - * @sg: scatterlist - * @offset: byte offset into that sg entry - * - * This function sets up the segment so that subsequent - * data is copied to the indicated sg entry, at the given - * offset. - */ -static inline void -iscsi_tcp_segment_init_sg(struct iscsi_segment *segment, - struct scatterlist *sg, unsigned int offset) -{ - segment->sg = sg; - segment->sg_offset = offset; - segment->size = min(sg->length - offset, - segment->total_size - segment->total_copied); - segment->data = NULL; -} - -/** - * iscsi_tcp_segment_map - map the current S/G page - * @segment: iscsi_segment - * @recv: 1 if called from recv path - * - * We only need to possibly kmap data if scatter lists are being used, - * because the iscsi passthrough and internal IO paths will never use high - * mem pages. - */ -static inline void -iscsi_tcp_segment_map(struct iscsi_segment *segment, int recv) -{ - struct scatterlist *sg; - - if (segment->data != NULL || !segment->sg) - return; - - sg = segment->sg; - BUG_ON(segment->sg_mapped); - BUG_ON(sg->length == 0); - - /* - * If the page count is greater than one it is ok to send - * to the network layer's zero copy send path. If not we - * have to go the slow sendmsg path. We always map for the - * recv path. - */ - if (page_count(sg_page(sg)) >= 1 && !recv) - return; - - debug_tcp("iscsi_tcp_segment_map %s %p\n", recv ? "recv" : "xmit", - segment); - segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0); - segment->data = segment->sg_mapped + sg->offset + segment->sg_offset; -} - -static inline void -iscsi_tcp_segment_unmap(struct iscsi_segment *segment) -{ - debug_tcp("iscsi_tcp_segment_unmap %p\n", segment); - - if (segment->sg_mapped) { - debug_tcp("iscsi_tcp_segment_unmap valid\n"); - kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0); - segment->sg_mapped = NULL; - segment->data = NULL; - } -} - -/* - * Splice the digest buffer into the buffer - */ -static inline void -iscsi_tcp_segment_splice_digest(struct iscsi_segment *segment, void *digest) -{ - segment->data = digest; - segment->digest_len = ISCSI_DIGEST_SIZE; - segment->total_size += ISCSI_DIGEST_SIZE; - segment->size = ISCSI_DIGEST_SIZE; - segment->copied = 0; - segment->sg = NULL; - segment->hash = NULL; -} - -/** - * iscsi_tcp_segment_done - check whether the segment is complete - * @segment: iscsi segment to check - * @recv: set to one of this is called from the recv path - * @copied: number of bytes copied - * - * Check if we're done receiving this segment. If the receive - * buffer is full but we expect more data, move on to the - * next entry in the scatterlist. - * - * If the amount of data we received isn't a multiple of 4, - * we will transparently receive the pad bytes, too. - * - * This function must be re-entrant. - */ -static inline int -iscsi_tcp_segment_done(struct iscsi_segment *segment, int recv, unsigned copied) -{ - static unsigned char padbuf[ISCSI_PAD_LEN]; - struct scatterlist sg; - unsigned int pad; - - debug_tcp("copied %u %u size %u %s\n", segment->copied, copied, - segment->size, recv ? "recv" : "xmit"); - if (segment->hash && copied) { - /* - * If a segment is kmapd we must unmap it before sending - * to the crypto layer since that will try to kmap it again. - */ - iscsi_tcp_segment_unmap(segment); - - if (!segment->data) { - sg_init_table(&sg, 1); - sg_set_page(&sg, sg_page(segment->sg), copied, - segment->copied + segment->sg_offset + - segment->sg->offset); - } else - sg_init_one(&sg, segment->data + segment->copied, - copied); - crypto_hash_update(segment->hash, &sg, copied); - } - - segment->copied += copied; - if (segment->copied < segment->size) { - iscsi_tcp_segment_map(segment, recv); - return 0; - } - - segment->total_copied += segment->copied; - segment->copied = 0; - segment->size = 0; - - /* Unmap the current scatterlist page, if there is one. */ - iscsi_tcp_segment_unmap(segment); - - /* Do we have more scatterlist entries? */ - debug_tcp("total copied %u total size %u\n", segment->total_copied, - segment->total_size); - if (segment->total_copied < segment->total_size) { - /* Proceed to the next entry in the scatterlist. */ - iscsi_tcp_segment_init_sg(segment, sg_next(segment->sg), - 0); - iscsi_tcp_segment_map(segment, recv); - BUG_ON(segment->size == 0); - return 0; - } - - /* Do we need to handle padding? */ - pad = iscsi_padding(segment->total_copied); - if (pad != 0) { - debug_tcp("consume %d pad bytes\n", pad); - segment->total_size += pad; - segment->size = pad; - segment->data = padbuf; - return 0; - } - - /* - * Set us up for transferring the data digest. hdr digest - * is completely handled in hdr done function. - */ - if (segment->hash) { - crypto_hash_final(segment->hash, segment->digest); - iscsi_tcp_segment_splice_digest(segment, - recv ? segment->recv_digest : segment->digest); - return 0; - } - - return 1; -} - -/** - * iscsi_tcp_xmit_segment - transmit segment - * @tcp_conn: the iSCSI TCP connection - * @segment: the buffer to transmnit - * - * This function transmits as much of the buffer as - * the network layer will accept, and returns the number of - * bytes transmitted. - * - * If CRC hashing is enabled, the function will compute the - * hash as it goes. When the entire segment has been transmitted, - * it will retrieve the hash value and send it as well. - */ -static int -iscsi_tcp_xmit_segment(struct iscsi_tcp_conn *tcp_conn, - struct iscsi_segment *segment) -{ - struct socket *sk = tcp_conn->sock; - unsigned int copied = 0; - int r = 0; - - while (!iscsi_tcp_segment_done(segment, 0, r)) { - struct scatterlist *sg; - unsigned int offset, copy; - int flags = 0; - - r = 0; - offset = segment->copied; - copy = segment->size - offset; - - if (segment->total_copied + segment->size < segment->total_size) - flags |= MSG_MORE; - - /* Use sendpage if we can; else fall back to sendmsg */ - if (!segment->data) { - sg = segment->sg; - offset += segment->sg_offset + sg->offset; - r = tcp_conn->sendpage(sk, sg_page(sg), offset, copy, - flags); - } else { - struct msghdr msg = { .msg_flags = flags }; - struct kvec iov = { - .iov_base = segment->data + offset, - .iov_len = copy - }; - - r = kernel_sendmsg(sk, &msg, &iov, 1, copy); - } - - if (r < 0) { - iscsi_tcp_segment_unmap(segment); - if (copied || r == -EAGAIN) - break; - return r; - } - copied += r; - } - return copied; -} - -/** - * iscsi_tcp_segment_recv - copy data to segment - * @tcp_conn: the iSCSI TCP connection - * @segment: the buffer to copy to - * @ptr: data pointer - * @len: amount of data available - * - * This function copies up to @len bytes to the - * given buffer, and returns the number of bytes - * consumed, which can actually be less than @len. - * - * If hash digest is enabled, the function will update the - * hash while copying. - * Combining these two operations doesn't buy us a lot (yet), - * but in the future we could implement combined copy+crc, - * just way we do for network layer checksums. - */ -static int -iscsi_tcp_segment_recv(struct iscsi_tcp_conn *tcp_conn, - struct iscsi_segment *segment, const void *ptr, - unsigned int len) -{ - unsigned int copy = 0, copied = 0; - - while (!iscsi_tcp_segment_done(segment, 1, copy)) { - if (copied == len) { - debug_tcp("iscsi_tcp_segment_recv copied %d bytes\n", - len); - break; - } - - copy = min(len - copied, segment->size - segment->copied); - debug_tcp("iscsi_tcp_segment_recv copying %d\n", copy); - memcpy(segment->data + segment->copied, ptr + copied, copy); - copied += copy; - } - return copied; -} - -static inline void -iscsi_tcp_dgst_header(struct hash_desc *hash, const void *hdr, size_t hdrlen, - unsigned char digest[ISCSI_DIGEST_SIZE]) -{ - struct scatterlist sg; - - sg_init_one(&sg, hdr, hdrlen); - crypto_hash_digest(hash, &sg, hdrlen, digest); -} - -static inline int -iscsi_tcp_dgst_verify(struct iscsi_tcp_conn *tcp_conn, - struct iscsi_segment *segment) -{ - if (!segment->digest_len) - return 1; - - if (memcmp(segment->recv_digest, segment->digest, - segment->digest_len)) { - debug_scsi("digest mismatch\n"); - return 0; - } - - return 1; -} - -/* - * Helper function to set up segment buffer - */ -static inline void -__iscsi_segment_init(struct iscsi_segment *segment, size_t size, - iscsi_segment_done_fn_t *done, struct hash_desc *hash) -{ - memset(segment, 0, sizeof(*segment)); - segment->total_size = size; - segment->done = done; - - if (hash) { - segment->hash = hash; - crypto_hash_init(hash); - } -} - -static inline void -iscsi_segment_init_linear(struct iscsi_segment *segment, void *data, - size_t size, iscsi_segment_done_fn_t *done, - struct hash_desc *hash) -{ - __iscsi_segment_init(segment, size, done, hash); - segment->data = data; - segment->size = size; -} - -static inline int -iscsi_segment_seek_sg(struct iscsi_segment *segment, - struct scatterlist *sg_list, unsigned int sg_count, - unsigned int offset, size_t size, - iscsi_segment_done_fn_t *done, struct hash_desc *hash) -{ - struct scatterlist *sg; - unsigned int i; - - debug_scsi("iscsi_segment_seek_sg offset %u size %llu\n", - offset, size); - __iscsi_segment_init(segment, size, done, hash); - for_each_sg(sg_list, sg, sg_count, i) { - debug_scsi("sg %d, len %u offset %u\n", i, sg->length, - sg->offset); - if (offset < sg->length) { - iscsi_tcp_segment_init_sg(segment, sg, offset); - return 0; - } - offset -= sg->length; - } - - return ISCSI_ERR_DATA_OFFSET; -} - -/** - * iscsi_tcp_hdr_recv_prep - prep segment for hdr reception - * @tcp_conn: iscsi connection to prep for - * - * This function always passes NULL for the hash argument, because when this - * function is called we do not yet know the final size of the header and want - * to delay the digest processing until we know that. - */ -static void -iscsi_tcp_hdr_recv_prep(struct iscsi_tcp_conn *tcp_conn) -{ - debug_tcp("iscsi_tcp_hdr_recv_prep(%p%s)\n", tcp_conn, - tcp_conn->iscsi_conn->hdrdgst_en ? ", digest enabled" : ""); - iscsi_segment_init_linear(&tcp_conn->in.segment, - tcp_conn->in.hdr_buf, sizeof(struct iscsi_hdr), - iscsi_tcp_hdr_recv_done, NULL); -} - -/* - * Handle incoming reply to any other type of command - */ -static int -iscsi_tcp_data_recv_done(struct iscsi_tcp_conn *tcp_conn, - struct iscsi_segment *segment) -{ - struct iscsi_conn *conn = tcp_conn->iscsi_conn; - int rc = 0; - - if (!iscsi_tcp_dgst_verify(tcp_conn, segment)) - return ISCSI_ERR_DATA_DGST; - - rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, - conn->data, tcp_conn->in.datalen); - if (rc) - return rc; - - iscsi_tcp_hdr_recv_prep(tcp_conn); - return 0; -} - -static void -iscsi_tcp_data_recv_prep(struct iscsi_tcp_conn *tcp_conn) -{ - struct iscsi_conn *conn = tcp_conn->iscsi_conn; - struct hash_desc *rx_hash = NULL; - - if (conn->datadgst_en) - rx_hash = &tcp_conn->rx_hash; - - iscsi_segment_init_linear(&tcp_conn->in.segment, - conn->data, tcp_conn->in.datalen, - iscsi_tcp_data_recv_done, rx_hash); -} - -/* - * must be called with session lock - */ -static void -iscsi_tcp_cleanup_task(struct iscsi_conn *conn, struct iscsi_task *task) -{ - struct iscsi_tcp_task *tcp_task = task->dd_data; - struct iscsi_r2t_info *r2t; - - /* nothing to do for mgmt tasks */ - if (!task->sc) - return; - - /* flush task's r2t queues */ - while (__kfifo_get(tcp_task->r2tqueue, (void*)&r2t, sizeof(void*))) { - __kfifo_put(tcp_task->r2tpool.queue, (void*)&r2t, - sizeof(void*)); - debug_scsi("iscsi_tcp_cleanup_task pending r2t dropped\n"); - } - - r2t = tcp_task->r2t; - if (r2t != NULL) { - __kfifo_put(tcp_task->r2tpool.queue, (void*)&r2t, - sizeof(void*)); - tcp_task->r2t = NULL; - } -} - -/** - * iscsi_data_in - SCSI Data-In Response processing - * @conn: iscsi connection - * @task: scsi command task - **/ -static int -iscsi_data_in(struct iscsi_conn *conn, struct iscsi_task *task) -{ - struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - struct iscsi_tcp_task *tcp_task = task->dd_data; - struct iscsi_data_rsp *rhdr = (struct iscsi_data_rsp *)tcp_conn->in.hdr; - int datasn = be32_to_cpu(rhdr->datasn); - unsigned total_in_length = scsi_in(task->sc)->length; - - iscsi_update_cmdsn(conn->session, (struct iscsi_nopin*)rhdr); - if (tcp_conn->in.datalen == 0) - return 0; - - if (tcp_task->exp_datasn != datasn) { - debug_tcp("%s: task->exp_datasn(%d) != rhdr->datasn(%d)\n", - __func__, tcp_task->exp_datasn, datasn); - return ISCSI_ERR_DATASN; - } - - tcp_task->exp_datasn++; - - tcp_task->data_offset = be32_to_cpu(rhdr->offset); - if (tcp_task->data_offset + tcp_conn->in.datalen > total_in_length) { - debug_tcp("%s: data_offset(%d) + data_len(%d) > total_length_in(%d)\n", - __func__, tcp_task->data_offset, - tcp_conn->in.datalen, total_in_length); - return ISCSI_ERR_DATA_OFFSET; - } - - conn->datain_pdus_cnt++; - return 0; -} - -/** - * iscsi_solicit_data_init - initialize first Data-Out - * @conn: iscsi connection - * @task: scsi command task - * @r2t: R2T info - * - * Notes: - * Initialize first Data-Out within this R2T sequence and finds - * proper data_offset within this SCSI command. - * - * This function is called with connection lock taken. - **/ -static void -iscsi_solicit_data_init(struct iscsi_conn *conn, struct iscsi_task *task, - struct iscsi_r2t_info *r2t) -{ - struct iscsi_data *hdr; - - hdr = &r2t->dtask.hdr; - memset(hdr, 0, sizeof(struct iscsi_data)); - hdr->ttt = r2t->ttt; - hdr->datasn = cpu_to_be32(r2t->solicit_datasn); - r2t->solicit_datasn++; - hdr->opcode = ISCSI_OP_SCSI_DATA_OUT; - memcpy(hdr->lun, task->hdr->lun, sizeof(hdr->lun)); - hdr->itt = task->hdr->itt; - hdr->exp_statsn = r2t->exp_statsn; - hdr->offset = cpu_to_be32(r2t->data_offset); - if (r2t->data_length > conn->max_xmit_dlength) { - hton24(hdr->dlength, conn->max_xmit_dlength); - r2t->data_count = conn->max_xmit_dlength; - hdr->flags = 0; - } else { - hton24(hdr->dlength, r2t->data_length); - r2t->data_count = r2t->data_length; - hdr->flags = ISCSI_FLAG_CMD_FINAL; - } - conn->dataout_pdus_cnt++; - - r2t->sent = 0; -} - -/** - * iscsi_r2t_rsp - iSCSI R2T Response processing - * @conn: iscsi connection - * @task: scsi command task - **/ -static int -iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_task *task) -{ - struct iscsi_r2t_info *r2t; - struct iscsi_session *session = conn->session; - struct iscsi_tcp_task *tcp_task = task->dd_data; - struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - struct iscsi_r2t_rsp *rhdr = (struct iscsi_r2t_rsp *)tcp_conn->in.hdr; - int r2tsn = be32_to_cpu(rhdr->r2tsn); - int rc; - - if (tcp_conn->in.datalen) { - iscsi_conn_printk(KERN_ERR, conn, - "invalid R2t with datalen %d\n", - tcp_conn->in.datalen); - return ISCSI_ERR_DATALEN; - } - - if (tcp_task->exp_datasn != r2tsn){ - debug_tcp("%s: task->exp_datasn(%d) != rhdr->r2tsn(%d)\n", - __func__, tcp_task->exp_datasn, r2tsn); - return ISCSI_ERR_R2TSN; - } - - /* fill-in new R2T associated with the task */ - iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr); - - if (!task->sc || session->state != ISCSI_STATE_LOGGED_IN) { - iscsi_conn_printk(KERN_INFO, conn, - "dropping R2T itt %d in recovery.\n", - task->itt); - return 0; - } - - rc = __kfifo_get(tcp_task->r2tpool.queue, (void*)&r2t, sizeof(void*)); - BUG_ON(!rc); - - r2t->exp_statsn = rhdr->statsn; - r2t->data_length = be32_to_cpu(rhdr->data_length); - if (r2t->data_length == 0) { - iscsi_conn_printk(KERN_ERR, conn, - "invalid R2T with zero data len\n"); - __kfifo_put(tcp_task->r2tpool.queue, (void*)&r2t, - sizeof(void*)); - return ISCSI_ERR_DATALEN; - } - - if (r2t->data_length > session->max_burst) - debug_scsi("invalid R2T with data len %u and max burst %u." - "Attempting to execute request.\n", - r2t->data_length, session->max_burst); - - r2t->data_offset = be32_to_cpu(rhdr->data_offset); - if (r2t->data_offset + r2t->data_length > scsi_out(task->sc)->length) { - iscsi_conn_printk(KERN_ERR, conn, - "invalid R2T with data len %u at offset %u " - "and total length %d\n", r2t->data_length, - r2t->data_offset, scsi_out(task->sc)->length); - __kfifo_put(tcp_task->r2tpool.queue, (void*)&r2t, - sizeof(void*)); - return ISCSI_ERR_DATALEN; - } - - r2t->ttt = rhdr->ttt; /* no flip */ - r2t->solicit_datasn = 0; - - iscsi_solicit_data_init(conn, task, r2t); - - tcp_task->exp_datasn = r2tsn + 1; - __kfifo_put(tcp_task->r2tqueue, (void*)&r2t, sizeof(void*)); - conn->r2t_pdus_cnt++; - - iscsi_requeue_task(task); - return 0; -} - -/* - * Handle incoming reply to DataIn command - */ -static int -iscsi_tcp_process_data_in(struct iscsi_tcp_conn *tcp_conn, - struct iscsi_segment *segment) -{ - struct iscsi_conn *conn = tcp_conn->iscsi_conn; - struct iscsi_hdr *hdr = tcp_conn->in.hdr; - int rc; - - if (!iscsi_tcp_dgst_verify(tcp_conn, segment)) - return ISCSI_ERR_DATA_DGST; - - /* check for non-exceptional status */ - if (hdr->flags & ISCSI_FLAG_DATA_STATUS) { - rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, NULL, 0); - if (rc) - return rc; - } - - iscsi_tcp_hdr_recv_prep(tcp_conn); - return 0; -} - -/** - * iscsi_tcp_hdr_dissect - process PDU header - * @conn: iSCSI connection - * @hdr: PDU header - * - * This function analyzes the header of the PDU received, - * and performs several sanity checks. If the PDU is accompanied - * by data, the receive buffer is set up to copy the incoming data - * to the correct location. - */ -static int -iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr) -{ - int rc = 0, opcode, ahslen; - struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - struct iscsi_task *task; - - /* verify PDU length */ - tcp_conn->in.datalen = ntoh24(hdr->dlength); - if (tcp_conn->in.datalen > conn->max_recv_dlength) { - iscsi_conn_printk(KERN_ERR, conn, - "iscsi_tcp: datalen %d > %d\n", - tcp_conn->in.datalen, conn->max_recv_dlength); - return ISCSI_ERR_DATALEN; - } - - /* Additional header segments. So far, we don't - * process additional headers. - */ - ahslen = hdr->hlength << 2; - - opcode = hdr->opcode & ISCSI_OPCODE_MASK; - /* verify itt (itt encoding: age+cid+itt) */ - rc = iscsi_verify_itt(conn, hdr->itt); - if (rc) - return rc; - - debug_tcp("opcode 0x%x ahslen %d datalen %d\n", - opcode, ahslen, tcp_conn->in.datalen); - - switch(opcode) { - case ISCSI_OP_SCSI_DATA_IN: - spin_lock(&conn->session->lock); - task = iscsi_itt_to_ctask(conn, hdr->itt); - if (!task) - rc = ISCSI_ERR_BAD_ITT; - else - rc = iscsi_data_in(conn, task); - if (rc) { - spin_unlock(&conn->session->lock); - break; - } - - if (tcp_conn->in.datalen) { - struct iscsi_tcp_task *tcp_task = task->dd_data; - struct hash_desc *rx_hash = NULL; - struct scsi_data_buffer *sdb = scsi_in(task->sc); - - /* - * Setup copy of Data-In into the Scsi_Cmnd - * Scatterlist case: - * We set up the iscsi_segment to point to the next - * scatterlist entry to copy to. As we go along, - * we move on to the next scatterlist entry and - * update the digest per-entry. - */ - if (conn->datadgst_en) - rx_hash = &tcp_conn->rx_hash; - - debug_tcp("iscsi_tcp_begin_data_in(%p, offset=%d, " - "datalen=%d)\n", tcp_conn, - tcp_task->data_offset, - tcp_conn->in.datalen); - rc = iscsi_segment_seek_sg(&tcp_conn->in.segment, - sdb->table.sgl, - sdb->table.nents, - tcp_task->data_offset, - tcp_conn->in.datalen, - iscsi_tcp_process_data_in, - rx_hash); - spin_unlock(&conn->session->lock); - return rc; - } - rc = __iscsi_complete_pdu(conn, hdr, NULL, 0); - spin_unlock(&conn->session->lock); - break; - case ISCSI_OP_SCSI_CMD_RSP: - if (tcp_conn->in.datalen) { - iscsi_tcp_data_recv_prep(tcp_conn); - return 0; - } - rc = iscsi_complete_pdu(conn, hdr, NULL, 0); - break; - case ISCSI_OP_R2T: - spin_lock(&conn->session->lock); - task = iscsi_itt_to_ctask(conn, hdr->itt); - if (!task) - rc = ISCSI_ERR_BAD_ITT; - else if (ahslen) - rc = ISCSI_ERR_AHSLEN; - else if (task->sc->sc_data_direction == DMA_TO_DEVICE) - rc = iscsi_r2t_rsp(conn, task); - else - rc = ISCSI_ERR_PROTO; - spin_unlock(&conn->session->lock); - break; - case ISCSI_OP_LOGIN_RSP: - case ISCSI_OP_TEXT_RSP: - case ISCSI_OP_REJECT: - case ISCSI_OP_ASYNC_EVENT: - /* - * It is possible that we could get a PDU with a buffer larger - * than 8K, but there are no targets that currently do this. - * For now we fail until we find a vendor that needs it - */ - if (ISCSI_DEF_MAX_RECV_SEG_LEN < tcp_conn->in.datalen) { - iscsi_conn_printk(KERN_ERR, conn, - "iscsi_tcp: received buffer of " - "len %u but conn buffer is only %u " - "(opcode %0x)\n", - tcp_conn->in.datalen, - ISCSI_DEF_MAX_RECV_SEG_LEN, opcode); - rc = ISCSI_ERR_PROTO; - break; - } - - /* If there's data coming in with the response, - * receive it to the connection's buffer. - */ - if (tcp_conn->in.datalen) { - iscsi_tcp_data_recv_prep(tcp_conn); - return 0; - } - /* fall through */ - case ISCSI_OP_LOGOUT_RSP: - case ISCSI_OP_NOOP_IN: - case ISCSI_OP_SCSI_TMFUNC_RSP: - rc = iscsi_complete_pdu(conn, hdr, NULL, 0); - break; - default: - rc = ISCSI_ERR_BAD_OPCODE; - break; - } - - if (rc == 0) { - /* Anything that comes with data should have - * been handled above. */ - if (tcp_conn->in.datalen) - return ISCSI_ERR_PROTO; - iscsi_tcp_hdr_recv_prep(tcp_conn); - } - - return rc; -} - /** - * iscsi_tcp_hdr_recv_done - process PDU header - * - * This is the callback invoked when the PDU header has - * been received. If the header is followed by additional - * header segments, we go back for more data. - */ -static int -iscsi_tcp_hdr_recv_done(struct iscsi_tcp_conn *tcp_conn, - struct iscsi_segment *segment) -{ - struct iscsi_conn *conn = tcp_conn->iscsi_conn; - struct iscsi_hdr *hdr; - - /* Check if there are additional header segments - * *prior* to computing the digest, because we - * may need to go back to the caller for more. - */ - hdr = (struct iscsi_hdr *) tcp_conn->in.hdr_buf; - if (segment->copied == sizeof(struct iscsi_hdr) && hdr->hlength) { - /* Bump the header length - the caller will - * just loop around and get the AHS for us, and - * call again. */ - unsigned int ahslen = hdr->hlength << 2; - - /* Make sure we don't overflow */ - if (sizeof(*hdr) + ahslen > sizeof(tcp_conn->in.hdr_buf)) - return ISCSI_ERR_AHSLEN; - - segment->total_size += ahslen; - segment->size += ahslen; - return 0; - } - - /* We're done processing the header. See if we're doing - * header digests; if so, set up the recv_digest buffer - * and go back for more. */ - if (conn->hdrdgst_en) { - if (segment->digest_len == 0) { - iscsi_tcp_segment_splice_digest(segment, - segment->recv_digest); - return 0; - } - iscsi_tcp_dgst_header(&tcp_conn->rx_hash, hdr, - segment->total_copied - ISCSI_DIGEST_SIZE, - segment->digest); - - if (!iscsi_tcp_dgst_verify(tcp_conn, segment)) - return ISCSI_ERR_HDR_DGST; - } - - tcp_conn->in.hdr = hdr; - return iscsi_tcp_hdr_dissect(conn, hdr); -} - -/** - * iscsi_tcp_recv - TCP receive in sendfile fashion + * iscsi_sw_tcp_recv - TCP receive in sendfile fashion * @rd_desc: read descriptor * @skb: socket buffer * @offset: offset in skb * @len: skb->len - offset - **/ -static int -iscsi_tcp_recv(read_descriptor_t *rd_desc, struct sk_buff *skb, - unsigned int offset, size_t len) + */ +static int iscsi_sw_tcp_recv(read_descriptor_t *rd_desc, struct sk_buff *skb, + unsigned int offset, size_t len) { struct iscsi_conn *conn = rd_desc->arg.data; - struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - struct iscsi_segment *segment = &tcp_conn->in.segment; - struct skb_seq_state seq; - unsigned int consumed = 0; - int rc = 0; + unsigned int consumed, total_consumed = 0; + int status; debug_tcp("in %d bytes\n", skb->len - offset); - if (unlikely(conn->suspend_rx)) { - debug_tcp("conn %d Rx suspended!\n", conn->id); - return 0; - } + do { + status = 0; + consumed = iscsi_tcp_recv_skb(conn, skb, offset, 0, &status); + offset += consumed; + total_consumed += consumed; + } while (consumed != 0 && status != ISCSI_TCP_SKB_DONE); - skb_prepare_seq_read(skb, offset, skb->len, &seq); - while (1) { - unsigned int avail; - const u8 *ptr; - - avail = skb_seq_read(consumed, &ptr, &seq); - if (avail == 0) { - debug_tcp("no more data avail. Consumed %d\n", - consumed); - break; - } - BUG_ON(segment->copied >= segment->size); - - debug_tcp("skb %p ptr=%p avail=%u\n", skb, ptr, avail); - rc = iscsi_tcp_segment_recv(tcp_conn, segment, ptr, avail); - BUG_ON(rc == 0); - consumed += rc; - - if (segment->total_copied >= segment->total_size) { - debug_tcp("segment done\n"); - rc = segment->done(tcp_conn, segment); - if (rc != 0) { - skb_abort_seq_read(&seq); - goto error; - } - - /* The done() functions sets up the - * next segment. */ - } - } - skb_abort_seq_read(&seq); - conn->rxdata_octets += consumed; - return consumed; - -error: - debug_tcp("Error receiving PDU, errno=%d\n", rc); - iscsi_conn_failure(conn, rc); - return 0; + debug_tcp("read %d bytes status %d\n", skb->len - offset, status); + return total_consumed; } -static void -iscsi_tcp_data_ready(struct sock *sk, int flag) +static void iscsi_sw_tcp_data_ready(struct sock *sk, int flag) { struct iscsi_conn *conn = sk->sk_user_data; struct iscsi_tcp_conn *tcp_conn = conn->dd_data; @@ -1000,7 +106,7 @@ iscsi_tcp_data_ready(struct sock *sk, int flag) */ rd_desc.arg.data = conn; rd_desc.count = 1; - tcp_read_sock(sk, &rd_desc, iscsi_tcp_recv); + tcp_read_sock(sk, &rd_desc, iscsi_sw_tcp_recv); read_unlock(&sk->sk_callback_lock); @@ -1009,10 +115,10 @@ iscsi_tcp_data_ready(struct sock *sk, int flag) iscsi_tcp_segment_unmap(&tcp_conn->in.segment); } -static void -iscsi_tcp_state_change(struct sock *sk) +static void iscsi_sw_tcp_state_change(struct sock *sk) { struct iscsi_tcp_conn *tcp_conn; + struct iscsi_sw_tcp_conn *tcp_sw_conn; struct iscsi_conn *conn; struct iscsi_session *session; void (*old_state_change)(struct sock *); @@ -1030,7 +136,8 @@ iscsi_tcp_state_change(struct sock *sk) } tcp_conn = conn->dd_data; - old_state_change = tcp_conn->old_state_change; + tcp_sw_conn = tcp_conn->dd_data; + old_state_change = tcp_sw_conn->old_state_change; read_unlock(&sk->sk_callback_lock); @@ -1041,63 +148,123 @@ iscsi_tcp_state_change(struct sock *sk) * iscsi_write_space - Called when more output buffer space is available * @sk: socket space is available for **/ -static void -iscsi_write_space(struct sock *sk) +static void iscsi_sw_tcp_write_space(struct sock *sk) { struct iscsi_conn *conn = (struct iscsi_conn*)sk->sk_user_data; struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; - tcp_conn->old_write_space(sk); + tcp_sw_conn->old_write_space(sk); debug_tcp("iscsi_write_space: cid %d\n", conn->id); scsi_queue_work(conn->session->host, &conn->xmitwork); } -static void -iscsi_conn_set_callbacks(struct iscsi_conn *conn) +static void iscsi_sw_tcp_conn_set_callbacks(struct iscsi_conn *conn) { struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - struct sock *sk = tcp_conn->sock->sk; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; + struct sock *sk = tcp_sw_conn->sock->sk; /* assign new callbacks */ write_lock_bh(&sk->sk_callback_lock); sk->sk_user_data = conn; - tcp_conn->old_data_ready = sk->sk_data_ready; - tcp_conn->old_state_change = sk->sk_state_change; - tcp_conn->old_write_space = sk->sk_write_space; - sk->sk_data_ready = iscsi_tcp_data_ready; - sk->sk_state_change = iscsi_tcp_state_change; - sk->sk_write_space = iscsi_write_space; + tcp_sw_conn->old_data_ready = sk->sk_data_ready; + tcp_sw_conn->old_state_change = sk->sk_state_change; + tcp_sw_conn->old_write_space = sk->sk_write_space; + sk->sk_data_ready = iscsi_sw_tcp_data_ready; + sk->sk_state_change = iscsi_sw_tcp_state_change; + sk->sk_write_space = iscsi_sw_tcp_write_space; write_unlock_bh(&sk->sk_callback_lock); } static void -iscsi_conn_restore_callbacks(struct iscsi_tcp_conn *tcp_conn) +iscsi_sw_tcp_conn_restore_callbacks(struct iscsi_sw_tcp_conn *tcp_sw_conn) { - struct sock *sk = tcp_conn->sock->sk; + struct sock *sk = tcp_sw_conn->sock->sk; /* restore socket callbacks, see also: iscsi_conn_set_callbacks() */ write_lock_bh(&sk->sk_callback_lock); sk->sk_user_data = NULL; - sk->sk_data_ready = tcp_conn->old_data_ready; - sk->sk_state_change = tcp_conn->old_state_change; - sk->sk_write_space = tcp_conn->old_write_space; + sk->sk_data_ready = tcp_sw_conn->old_data_ready; + sk->sk_state_change = tcp_sw_conn->old_state_change; + sk->sk_write_space = tcp_sw_conn->old_write_space; sk->sk_no_check = 0; write_unlock_bh(&sk->sk_callback_lock); } /** - * iscsi_xmit - TCP transmit + * iscsi_sw_tcp_xmit_segment - transmit segment + * @tcp_conn: the iSCSI TCP connection + * @segment: the buffer to transmnit + * + * This function transmits as much of the buffer as + * the network layer will accept, and returns the number of + * bytes transmitted. + * + * If CRC hashing is enabled, the function will compute the + * hash as it goes. When the entire segment has been transmitted, + * it will retrieve the hash value and send it as well. + */ +static int iscsi_sw_tcp_xmit_segment(struct iscsi_tcp_conn *tcp_conn, + struct iscsi_segment *segment) +{ + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; + struct socket *sk = tcp_sw_conn->sock; + unsigned int copied = 0; + int r = 0; + + while (!iscsi_tcp_segment_done(tcp_conn, segment, 0, r)) { + struct scatterlist *sg; + unsigned int offset, copy; + int flags = 0; + + r = 0; + offset = segment->copied; + copy = segment->size - offset; + + if (segment->total_copied + segment->size < segment->total_size) + flags |= MSG_MORE; + + /* Use sendpage if we can; else fall back to sendmsg */ + if (!segment->data) { + sg = segment->sg; + offset += segment->sg_offset + sg->offset; + r = tcp_sw_conn->sendpage(sk, sg_page(sg), offset, + copy, flags); + } else { + struct msghdr msg = { .msg_flags = flags }; + struct kvec iov = { + .iov_base = segment->data + offset, + .iov_len = copy + }; + + r = kernel_sendmsg(sk, &msg, &iov, 1, copy); + } + + if (r < 0) { + iscsi_tcp_segment_unmap(segment); + if (copied || r == -EAGAIN) + break; + return r; + } + copied += r; + } + return copied; +} + +/** + * iscsi_sw_tcp_xmit - TCP transmit **/ -static int -iscsi_xmit(struct iscsi_conn *conn) +static int iscsi_sw_tcp_xmit(struct iscsi_conn *conn) { struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - struct iscsi_segment *segment = &tcp_conn->out.segment; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; + struct iscsi_segment *segment = &tcp_sw_conn->out.segment; unsigned int consumed = 0; int rc = 0; while (1) { - rc = iscsi_tcp_xmit_segment(tcp_conn, segment); + rc = iscsi_sw_tcp_xmit_segment(tcp_conn, segment); if (rc < 0) { rc = ISCSI_ERR_XMIT_FAILED; goto error; @@ -1132,22 +299,22 @@ error: /** * iscsi_tcp_xmit_qlen - return the number of bytes queued for xmit */ -static inline int -iscsi_tcp_xmit_qlen(struct iscsi_conn *conn) +static inline int iscsi_sw_tcp_xmit_qlen(struct iscsi_conn *conn) { struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - struct iscsi_segment *segment = &tcp_conn->out.segment; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; + struct iscsi_segment *segment = &tcp_sw_conn->out.segment; return segment->total_copied - segment->total_size; } -static inline int -iscsi_tcp_flush(struct iscsi_conn *conn) +static int iscsi_sw_tcp_pdu_xmit(struct iscsi_task *task) { + struct iscsi_conn *conn = task->conn; int rc; - while (iscsi_tcp_xmit_qlen(conn)) { - rc = iscsi_xmit(conn); + while (iscsi_sw_tcp_xmit_qlen(conn)) { + rc = iscsi_sw_tcp_xmit(conn); if (rc == 0) return -EAGAIN; if (rc < 0) @@ -1161,27 +328,31 @@ iscsi_tcp_flush(struct iscsi_conn *conn) * This is called when we're done sending the header. * Simply copy the data_segment to the send segment, and return. */ -static int -iscsi_tcp_send_hdr_done(struct iscsi_tcp_conn *tcp_conn, - struct iscsi_segment *segment) +static int iscsi_sw_tcp_send_hdr_done(struct iscsi_tcp_conn *tcp_conn, + struct iscsi_segment *segment) { - tcp_conn->out.segment = tcp_conn->out.data_segment; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; + + tcp_sw_conn->out.segment = tcp_sw_conn->out.data_segment; debug_tcp("Header done. Next segment size %u total_size %u\n", - tcp_conn->out.segment.size, tcp_conn->out.segment.total_size); + tcp_sw_conn->out.segment.size, + tcp_sw_conn->out.segment.total_size); return 0; } -static void -iscsi_tcp_send_hdr_prep(struct iscsi_conn *conn, void *hdr, size_t hdrlen) +static void iscsi_sw_tcp_send_hdr_prep(struct iscsi_conn *conn, void *hdr, + size_t hdrlen) { struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; debug_tcp("%s(%p%s)\n", __func__, tcp_conn, conn->hdrdgst_en? ", digest enabled" : ""); /* Clear the data segment - needs to be filled in by the * caller using iscsi_tcp_send_data_prep() */ - memset(&tcp_conn->out.data_segment, 0, sizeof(struct iscsi_segment)); + memset(&tcp_sw_conn->out.data_segment, 0, + sizeof(struct iscsi_segment)); /* If header digest is enabled, compute the CRC and * place the digest into the same buffer. We make @@ -1189,7 +360,7 @@ iscsi_tcp_send_hdr_prep(struct iscsi_conn *conn, void *hdr, size_t hdrlen) * sufficient room. */ if (conn->hdrdgst_en) { - iscsi_tcp_dgst_header(&tcp_conn->tx_hash, hdr, hdrlen, + iscsi_tcp_dgst_header(&tcp_sw_conn->tx_hash, hdr, hdrlen, hdr + hdrlen); hdrlen += ISCSI_DIGEST_SIZE; } @@ -1197,10 +368,10 @@ iscsi_tcp_send_hdr_prep(struct iscsi_conn *conn, void *hdr, size_t hdrlen) /* Remember header pointer for later, when we need * to decide whether there's a payload to go along * with the header. */ - tcp_conn->out.hdr = hdr; + tcp_sw_conn->out.hdr = hdr; - iscsi_segment_init_linear(&tcp_conn->out.segment, hdr, hdrlen, - iscsi_tcp_send_hdr_done, NULL); + iscsi_segment_init_linear(&tcp_sw_conn->out.segment, hdr, hdrlen, + iscsi_sw_tcp_send_hdr_done, NULL); } /* @@ -1209,11 +380,12 @@ iscsi_tcp_send_hdr_prep(struct iscsi_conn *conn, void *hdr, size_t hdrlen) * of by the iscsi_segment routines. */ static int -iscsi_tcp_send_data_prep(struct iscsi_conn *conn, struct scatterlist *sg, - unsigned int count, unsigned int offset, - unsigned int len) +iscsi_sw_tcp_send_data_prep(struct iscsi_conn *conn, struct scatterlist *sg, + unsigned int count, unsigned int offset, + unsigned int len) { struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; struct hash_desc *tx_hash = NULL; unsigned int hdr_spec_len; @@ -1223,22 +395,23 @@ iscsi_tcp_send_data_prep(struct iscsi_conn *conn, struct scatterlist *sg, /* Make sure the datalen matches what the caller said he would send. */ - hdr_spec_len = ntoh24(tcp_conn->out.hdr->dlength); + hdr_spec_len = ntoh24(tcp_sw_conn->out.hdr->dlength); WARN_ON(iscsi_padded(len) != iscsi_padded(hdr_spec_len)); if (conn->datadgst_en) - tx_hash = &tcp_conn->tx_hash; + tx_hash = &tcp_sw_conn->tx_hash; - return iscsi_segment_seek_sg(&tcp_conn->out.data_segment, - sg, count, offset, len, - NULL, tx_hash); + return iscsi_segment_seek_sg(&tcp_sw_conn->out.data_segment, + sg, count, offset, len, + NULL, tx_hash); } static void -iscsi_tcp_send_linear_data_prepare(struct iscsi_conn *conn, void *data, +iscsi_sw_tcp_send_linear_data_prep(struct iscsi_conn *conn, void *data, size_t len) { struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; struct hash_desc *tx_hash = NULL; unsigned int hdr_spec_len; @@ -1247,341 +420,160 @@ iscsi_tcp_send_linear_data_prepare(struct iscsi_conn *conn, void *data, /* Make sure the datalen matches what the caller said he would send. */ - hdr_spec_len = ntoh24(tcp_conn->out.hdr->dlength); + hdr_spec_len = ntoh24(tcp_sw_conn->out.hdr->dlength); WARN_ON(iscsi_padded(len) != iscsi_padded(hdr_spec_len)); if (conn->datadgst_en) - tx_hash = &tcp_conn->tx_hash; + tx_hash = &tcp_sw_conn->tx_hash; - iscsi_segment_init_linear(&tcp_conn->out.data_segment, + iscsi_segment_init_linear(&tcp_sw_conn->out.data_segment, data, len, NULL, tx_hash); } -/** - * iscsi_solicit_data_cont - initialize next Data-Out - * @conn: iscsi connection - * @task: scsi command task - * @r2t: R2T info - * @left: bytes left to transfer - * - * Notes: - * Initialize next Data-Out within this R2T sequence and continue - * to process next Scatter-Gather element(if any) of this SCSI command. - * - * Called under connection lock. - **/ -static int -iscsi_solicit_data_cont(struct iscsi_conn *conn, struct iscsi_task *task, - struct iscsi_r2t_info *r2t) +static int iscsi_sw_tcp_pdu_init(struct iscsi_task *task, + unsigned int offset, unsigned int count) { - struct iscsi_data *hdr; - int new_offset, left; - - BUG_ON(r2t->data_length - r2t->sent < 0); - left = r2t->data_length - r2t->sent; - if (left == 0) - return 0; - - hdr = &r2t->dtask.hdr; - memset(hdr, 0, sizeof(struct iscsi_data)); - hdr->ttt = r2t->ttt; - hdr->datasn = cpu_to_be32(r2t->solicit_datasn); - r2t->solicit_datasn++; - hdr->opcode = ISCSI_OP_SCSI_DATA_OUT; - memcpy(hdr->lun, task->hdr->lun, sizeof(hdr->lun)); - hdr->itt = task->hdr->itt; - hdr->exp_statsn = r2t->exp_statsn; - new_offset = r2t->data_offset + r2t->sent; - hdr->offset = cpu_to_be32(new_offset); - if (left > conn->max_xmit_dlength) { - hton24(hdr->dlength, conn->max_xmit_dlength); - r2t->data_count = conn->max_xmit_dlength; - } else { - hton24(hdr->dlength, left); - r2t->data_count = left; - hdr->flags = ISCSI_FLAG_CMD_FINAL; - } - - conn->dataout_pdus_cnt++; - return 1; -} - -/** - * iscsi_tcp_task - Initialize iSCSI SCSI_READ or SCSI_WRITE commands - * @conn: iscsi connection - * @task: scsi command task - * @sc: scsi command - **/ -static int -iscsi_tcp_task_init(struct iscsi_task *task) -{ - struct iscsi_tcp_task *tcp_task = task->dd_data; struct iscsi_conn *conn = task->conn; - struct scsi_cmnd *sc = task->sc; - int err; + int err = 0; - if (!sc) { - /* - * mgmt tasks do not have a scatterlist since they come - * in from the iscsi interface. - */ - debug_scsi("mtask deq [cid %d itt 0x%x]\n", conn->id, - task->itt); - - /* Prepare PDU, optionally w/ immediate data */ - iscsi_tcp_send_hdr_prep(conn, task->hdr, sizeof(*task->hdr)); - - /* If we have immediate data, attach a payload */ - if (task->data_count) - iscsi_tcp_send_linear_data_prepare(conn, task->data, - task->data_count); - return 0; - } + iscsi_sw_tcp_send_hdr_prep(conn, task->hdr, task->hdr_len); - BUG_ON(__kfifo_len(tcp_task->r2tqueue)); - tcp_task->sent = 0; - tcp_task->exp_datasn = 0; + if (!count) + return 0; - /* Prepare PDU, optionally w/ immediate data */ - debug_scsi("task deq [cid %d itt 0x%x imm %d unsol %d]\n", - conn->id, task->itt, task->imm_count, - task->unsol_count); - iscsi_tcp_send_hdr_prep(conn, task->hdr, task->hdr_len); + if (!task->sc) + iscsi_sw_tcp_send_linear_data_prep(conn, task->data, count); + else { + struct scsi_data_buffer *sdb = scsi_out(task->sc); - if (!task->imm_count) - return 0; + err = iscsi_sw_tcp_send_data_prep(conn, sdb->table.sgl, + sdb->table.nents, offset, + count); + } - /* If we have immediate data, attach a payload */ - err = iscsi_tcp_send_data_prep(conn, scsi_out(sc)->table.sgl, - scsi_out(sc)->table.nents, - 0, task->imm_count); - if (err) - return err; - tcp_task->sent += task->imm_count; - task->imm_count = 0; + if (err) { + iscsi_conn_failure(conn, err); + return -EIO; + } return 0; } -/* - * iscsi_tcp_task_xmit - xmit normal PDU task - * @task: iscsi command task - * - * We're expected to return 0 when everything was transmitted succesfully, - * -EAGAIN if there's still data in the queue, or != 0 for any other kind - * of error. - */ -static int -iscsi_tcp_task_xmit(struct iscsi_task *task) +static int iscsi_sw_tcp_pdu_alloc(struct iscsi_task *task, uint8_t opcode) { - struct iscsi_conn *conn = task->conn; struct iscsi_tcp_task *tcp_task = task->dd_data; - struct scsi_cmnd *sc = task->sc; - struct scsi_data_buffer *sdb; - int rc = 0; - -flush: - /* Flush any pending data first. */ - rc = iscsi_tcp_flush(conn); - if (rc < 0) - return rc; - - /* mgmt command */ - if (!sc) { - if (task->hdr->itt == RESERVED_ITT) - iscsi_put_task(task); - return 0; - } - - /* Are we done already? */ - if (sc->sc_data_direction != DMA_TO_DEVICE) - return 0; - sdb = scsi_out(sc); - if (task->unsol_count != 0) { - struct iscsi_data *hdr = &tcp_task->unsol_dtask.hdr; - - /* Prepare a header for the unsolicited PDU. - * The amount of data we want to send will be - * in task->data_count. - * FIXME: return the data count instead. - */ - iscsi_prep_unsolicit_data_pdu(task, hdr); - - debug_tcp("unsol dout [itt 0x%x doff %d dlen %d]\n", - task->itt, tcp_task->sent, task->data_count); - - iscsi_tcp_send_hdr_prep(conn, hdr, sizeof(*hdr)); - rc = iscsi_tcp_send_data_prep(conn, sdb->table.sgl, - sdb->table.nents, tcp_task->sent, - task->data_count); - if (rc) - goto fail; - tcp_task->sent += task->data_count; - task->unsol_count -= task->data_count; - goto flush; - } else { - struct iscsi_session *session = conn->session; - struct iscsi_r2t_info *r2t; - - /* All unsolicited PDUs sent. Check for solicited PDUs. - */ - spin_lock_bh(&session->lock); - r2t = tcp_task->r2t; - if (r2t != NULL) { - /* Continue with this R2T? */ - if (!iscsi_solicit_data_cont(conn, task, r2t)) { - debug_scsi(" done with r2t %p\n", r2t); - - __kfifo_put(tcp_task->r2tpool.queue, - (void*)&r2t, sizeof(void*)); - tcp_task->r2t = r2t = NULL; - } - } - - if (r2t == NULL) { - __kfifo_get(tcp_task->r2tqueue, (void*)&tcp_task->r2t, - sizeof(void*)); - r2t = tcp_task->r2t; - } - spin_unlock_bh(&session->lock); - - /* Waiting for more R2Ts to arrive. */ - if (r2t == NULL) { - debug_tcp("no R2Ts yet\n"); - return 0; - } - - debug_scsi("sol dout %p [dsn %d itt 0x%x doff %d dlen %d]\n", - r2t, r2t->solicit_datasn - 1, task->itt, - r2t->data_offset + r2t->sent, r2t->data_count); - - iscsi_tcp_send_hdr_prep(conn, &r2t->dtask.hdr, - sizeof(struct iscsi_hdr)); - - rc = iscsi_tcp_send_data_prep(conn, sdb->table.sgl, - sdb->table.nents, - r2t->data_offset + r2t->sent, - r2t->data_count); - if (rc) - goto fail; - tcp_task->sent += r2t->data_count; - r2t->sent += r2t->data_count; - goto flush; - } + task->hdr = task->dd_data + sizeof(*tcp_task); + task->hdr_max = sizeof(struct iscsi_sw_tcp_hdrbuf) - ISCSI_DIGEST_SIZE; return 0; -fail: - iscsi_conn_failure(conn, rc); - return -EIO; } static struct iscsi_cls_conn * -iscsi_tcp_conn_create(struct iscsi_cls_session *cls_session, uint32_t conn_idx) +iscsi_sw_tcp_conn_create(struct iscsi_cls_session *cls_session, + uint32_t conn_idx) { struct iscsi_conn *conn; struct iscsi_cls_conn *cls_conn; struct iscsi_tcp_conn *tcp_conn; + struct iscsi_sw_tcp_conn *tcp_sw_conn; - cls_conn = iscsi_conn_setup(cls_session, sizeof(*tcp_conn), conn_idx); + cls_conn = iscsi_tcp_conn_setup(cls_session, sizeof(*tcp_sw_conn), + conn_idx); if (!cls_conn) return NULL; conn = cls_conn->dd_data; - /* - * due to strange issues with iser these are not set - * in iscsi_conn_setup - */ - conn->max_recv_dlength = ISCSI_DEF_MAX_RECV_SEG_LEN; - tcp_conn = conn->dd_data; - tcp_conn->iscsi_conn = conn; + tcp_sw_conn = tcp_conn->dd_data; - tcp_conn->tx_hash.tfm = crypto_alloc_hash("crc32c", 0, - CRYPTO_ALG_ASYNC); - tcp_conn->tx_hash.flags = 0; - if (IS_ERR(tcp_conn->tx_hash.tfm)) + tcp_sw_conn->tx_hash.tfm = crypto_alloc_hash("crc32c", 0, + CRYPTO_ALG_ASYNC); + tcp_sw_conn->tx_hash.flags = 0; + if (IS_ERR(tcp_sw_conn->tx_hash.tfm)) goto free_conn; - tcp_conn->rx_hash.tfm = crypto_alloc_hash("crc32c", 0, - CRYPTO_ALG_ASYNC); - tcp_conn->rx_hash.flags = 0; - if (IS_ERR(tcp_conn->rx_hash.tfm)) + tcp_sw_conn->rx_hash.tfm = crypto_alloc_hash("crc32c", 0, + CRYPTO_ALG_ASYNC); + tcp_sw_conn->rx_hash.flags = 0; + if (IS_ERR(tcp_sw_conn->rx_hash.tfm)) goto free_tx_tfm; + tcp_conn->rx_hash = &tcp_sw_conn->rx_hash; return cls_conn; free_tx_tfm: - crypto_free_hash(tcp_conn->tx_hash.tfm); + crypto_free_hash(tcp_sw_conn->tx_hash.tfm); free_conn: iscsi_conn_printk(KERN_ERR, conn, "Could not create connection due to crc32c " "loading error. Make sure the crc32c " "module is built as a module or into the " "kernel\n"); - iscsi_conn_teardown(cls_conn); + iscsi_tcp_conn_teardown(cls_conn); return NULL; } -static void -iscsi_tcp_release_conn(struct iscsi_conn *conn) +static void iscsi_sw_tcp_release_conn(struct iscsi_conn *conn) { struct iscsi_session *session = conn->session; struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - struct socket *sock = tcp_conn->sock; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; + struct socket *sock = tcp_sw_conn->sock; if (!sock) return; sock_hold(sock->sk); - iscsi_conn_restore_callbacks(tcp_conn); + iscsi_sw_tcp_conn_restore_callbacks(tcp_sw_conn); sock_put(sock->sk); spin_lock_bh(&session->lock); - tcp_conn->sock = NULL; + tcp_sw_conn->sock = NULL; spin_unlock_bh(&session->lock); sockfd_put(sock); } -static void -iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn) +static void iscsi_sw_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn) { struct iscsi_conn *conn = cls_conn->dd_data; struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; - iscsi_tcp_release_conn(conn); + iscsi_sw_tcp_release_conn(conn); - if (tcp_conn->tx_hash.tfm) - crypto_free_hash(tcp_conn->tx_hash.tfm); - if (tcp_conn->rx_hash.tfm) - crypto_free_hash(tcp_conn->rx_hash.tfm); + if (tcp_sw_conn->tx_hash.tfm) + crypto_free_hash(tcp_sw_conn->tx_hash.tfm); + if (tcp_sw_conn->rx_hash.tfm) + crypto_free_hash(tcp_sw_conn->rx_hash.tfm); - iscsi_conn_teardown(cls_conn); + iscsi_tcp_conn_teardown(cls_conn); } -static void -iscsi_tcp_conn_stop(struct iscsi_cls_conn *cls_conn, int flag) +static void iscsi_sw_tcp_conn_stop(struct iscsi_cls_conn *cls_conn, int flag) { struct iscsi_conn *conn = cls_conn->dd_data; struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; /* userspace may have goofed up and not bound us */ - if (!tcp_conn->sock) + if (!tcp_sw_conn->sock) return; /* * Make sure our recv side is stopped. * Older tools called conn stop before ep_disconnect * so IO could still be coming in. */ - write_lock_bh(&tcp_conn->sock->sk->sk_callback_lock); + write_lock_bh(&tcp_sw_conn->sock->sk->sk_callback_lock); set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx); - write_unlock_bh(&tcp_conn->sock->sk->sk_callback_lock); + write_unlock_bh(&tcp_sw_conn->sock->sk->sk_callback_lock); iscsi_conn_stop(cls_conn, flag); - iscsi_tcp_release_conn(conn); + iscsi_sw_tcp_release_conn(conn); } -static int iscsi_tcp_get_addr(struct iscsi_conn *conn, struct socket *sock, - char *buf, int *port, - int (*getname)(struct socket *, struct sockaddr *, - int *addrlen)) +static int iscsi_sw_tcp_get_addr(struct iscsi_conn *conn, struct socket *sock, + char *buf, int *port, + int (*getname)(struct socket *, + struct sockaddr *, + int *addrlen)) { struct sockaddr_storage *addr; struct sockaddr_in6 *sin6; @@ -1619,14 +611,15 @@ free_addr: } static int -iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session, - struct iscsi_cls_conn *cls_conn, uint64_t transport_eph, - int is_leading) +iscsi_sw_tcp_conn_bind(struct iscsi_cls_session *cls_session, + struct iscsi_cls_conn *cls_conn, uint64_t transport_eph, + int is_leading) { struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); struct iscsi_host *ihost = shost_priv(shost); struct iscsi_conn *conn = cls_conn->dd_data; struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; struct sock *sk; struct socket *sock; int err; @@ -1643,13 +636,13 @@ iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session, * userspace may still want to query the values since we will * be using them for the reconnect */ - err = iscsi_tcp_get_addr(conn, sock, conn->portal_address, - &conn->portal_port, kernel_getpeername); + err = iscsi_sw_tcp_get_addr(conn, sock, conn->portal_address, + &conn->portal_port, kernel_getpeername); if (err) goto free_socket; - err = iscsi_tcp_get_addr(conn, sock, ihost->local_address, - &ihost->local_port, kernel_getsockname); + err = iscsi_sw_tcp_get_addr(conn, sock, ihost->local_address, + &ihost->local_port, kernel_getsockname); if (err) goto free_socket; @@ -1658,7 +651,7 @@ iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session, goto free_socket; /* bind iSCSI connection and socket */ - tcp_conn->sock = sock; + tcp_sw_conn->sock = sock; /* setup Socket parameters */ sk = sock->sk; @@ -1666,8 +659,8 @@ iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session, sk->sk_sndtimeo = 15 * HZ; /* FIXME: make it configurable */ sk->sk_allocation = GFP_ATOMIC; - iscsi_conn_set_callbacks(conn); - tcp_conn->sendpage = tcp_conn->sock->ops->sendpage; + iscsi_sw_tcp_conn_set_callbacks(conn); + tcp_sw_conn->sendpage = tcp_sw_conn->sock->ops->sendpage; /* * set receive state machine into initial state */ @@ -1679,74 +672,14 @@ free_socket: return err; } -static int -iscsi_r2tpool_alloc(struct iscsi_session *session) -{ - int i; - int cmd_i; - - /* - * initialize per-task: R2T pool and xmit queue - */ - for (cmd_i = 0; cmd_i < session->cmds_max; cmd_i++) { - struct iscsi_task *task = session->cmds[cmd_i]; - struct iscsi_tcp_task *tcp_task = task->dd_data; - - /* - * pre-allocated x4 as much r2ts to handle race when - * target acks DataOut faster than we data_xmit() queues - * could replenish r2tqueue. - */ - - /* R2T pool */ - if (iscsi_pool_init(&tcp_task->r2tpool, session->max_r2t * 4, NULL, - sizeof(struct iscsi_r2t_info))) { - goto r2t_alloc_fail; - } - - /* R2T xmit queue */ - tcp_task->r2tqueue = kfifo_alloc( - session->max_r2t * 4 * sizeof(void*), GFP_KERNEL, NULL); - if (tcp_task->r2tqueue == ERR_PTR(-ENOMEM)) { - iscsi_pool_free(&tcp_task->r2tpool); - goto r2t_alloc_fail; - } - } - - return 0; - -r2t_alloc_fail: - for (i = 0; i < cmd_i; i++) { - struct iscsi_task *task = session->cmds[i]; - struct iscsi_tcp_task *tcp_task = task->dd_data; - - kfifo_free(tcp_task->r2tqueue); - iscsi_pool_free(&tcp_task->r2tpool); - } - return -ENOMEM; -} - -static void -iscsi_r2tpool_free(struct iscsi_session *session) -{ - int i; - - for (i = 0; i < session->cmds_max; i++) { - struct iscsi_task *task = session->cmds[i]; - struct iscsi_tcp_task *tcp_task = task->dd_data; - - kfifo_free(tcp_task->r2tqueue); - iscsi_pool_free(&tcp_task->r2tpool); - } -} - -static int -iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param, - char *buf, int buflen) +static int iscsi_sw_tcp_conn_set_param(struct iscsi_cls_conn *cls_conn, + enum iscsi_param param, char *buf, + int buflen) { struct iscsi_conn *conn = cls_conn->dd_data; struct iscsi_session *session = conn->session; struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; int value; switch(param) { @@ -1755,8 +688,8 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param, break; case ISCSI_PARAM_DATADGST_EN: iscsi_set_param(cls_conn, param, buf, buflen); - tcp_conn->sendpage = conn->datadgst_en ? - sock_no_sendpage : tcp_conn->sock->ops->sendpage; + tcp_sw_conn->sendpage = conn->datadgst_en ? + sock_no_sendpage : tcp_sw_conn->sock->ops->sendpage; break; case ISCSI_PARAM_MAX_R2T: sscanf(buf, "%d", &value); @@ -1764,9 +697,9 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param, return -EINVAL; if (session->max_r2t == value) break; - iscsi_r2tpool_free(session); + iscsi_tcp_r2tpool_free(session); iscsi_set_param(cls_conn, param, buf, buflen); - if (iscsi_r2tpool_alloc(session)) + if (iscsi_tcp_r2tpool_alloc(session)) return -ENOMEM; break; default: @@ -1776,9 +709,8 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param, return 0; } -static int -iscsi_tcp_conn_get_param(struct iscsi_cls_conn *cls_conn, - enum iscsi_param param, char *buf) +static int iscsi_sw_tcp_conn_get_param(struct iscsi_cls_conn *cls_conn, + enum iscsi_param param, char *buf) { struct iscsi_conn *conn = cls_conn->dd_data; int len; @@ -1802,48 +734,42 @@ iscsi_tcp_conn_get_param(struct iscsi_cls_conn *cls_conn, } static void -iscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *stats) +iscsi_sw_tcp_conn_get_stats(struct iscsi_cls_conn *cls_conn, + struct iscsi_stats *stats) { struct iscsi_conn *conn = cls_conn->dd_data; struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data; - stats->txdata_octets = conn->txdata_octets; - stats->rxdata_octets = conn->rxdata_octets; - stats->scsicmd_pdus = conn->scsicmd_pdus_cnt; - stats->dataout_pdus = conn->dataout_pdus_cnt; - stats->scsirsp_pdus = conn->scsirsp_pdus_cnt; - stats->datain_pdus = conn->datain_pdus_cnt; - stats->r2t_pdus = conn->r2t_pdus_cnt; - stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt; - stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt; stats->custom_length = 3; strcpy(stats->custom[0].desc, "tx_sendpage_failures"); - stats->custom[0].value = tcp_conn->sendpage_failures_cnt; + stats->custom[0].value = tcp_sw_conn->sendpage_failures_cnt; strcpy(stats->custom[1].desc, "rx_discontiguous_hdr"); - stats->custom[1].value = tcp_conn->discontiguous_hdr_cnt; + stats->custom[1].value = tcp_sw_conn->discontiguous_hdr_cnt; strcpy(stats->custom[2].desc, "eh_abort_cnt"); stats->custom[2].value = conn->eh_abort_cnt; + + iscsi_tcp_conn_get_stats(cls_conn, stats); } static struct iscsi_cls_session * -iscsi_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, - uint16_t qdepth, uint32_t initial_cmdsn, - uint32_t *hostno) +iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, + uint16_t qdepth, uint32_t initial_cmdsn, + uint32_t *hostno) { struct iscsi_cls_session *cls_session; struct iscsi_session *session; struct Scsi_Host *shost; - int cmd_i; if (ep) { printk(KERN_ERR "iscsi_tcp: invalid ep %p.\n", ep); return NULL; } - shost = iscsi_host_alloc(&iscsi_sht, 0, qdepth); + shost = iscsi_host_alloc(&iscsi_sw_tcp_sht, 0, qdepth); if (!shost) return NULL; - shost->transportt = iscsi_tcp_scsi_transport; + shost->transportt = iscsi_sw_tcp_scsi_transport; shost->max_lun = iscsi_max_lun; shost->max_id = 0; shost->max_channel = 0; @@ -1853,23 +779,17 @@ iscsi_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, goto free_host; *hostno = shost->host_no; - cls_session = iscsi_session_setup(&iscsi_tcp_transport, shost, cmds_max, - sizeof(struct iscsi_tcp_task), + cls_session = iscsi_session_setup(&iscsi_sw_tcp_transport, shost, + cmds_max, + sizeof(struct iscsi_tcp_task) + + sizeof(struct iscsi_sw_tcp_hdrbuf), initial_cmdsn, 0); if (!cls_session) goto remove_host; session = cls_session->dd_data; shost->can_queue = session->scsi_cmds_max; - for (cmd_i = 0; cmd_i < session->cmds_max; cmd_i++) { - struct iscsi_task *task = session->cmds[cmd_i]; - struct iscsi_tcp_task *tcp_task = task->dd_data; - - task->hdr = &tcp_task->hdr.cmd_hdr; - task->hdr_max = sizeof(tcp_task->hdr) - ISCSI_DIGEST_SIZE; - } - - if (iscsi_r2tpool_alloc(session)) + if (iscsi_tcp_r2tpool_alloc(session)) goto remove_session; return cls_session; @@ -1882,25 +802,25 @@ free_host: return NULL; } -static void iscsi_tcp_session_destroy(struct iscsi_cls_session *cls_session) +static void iscsi_sw_tcp_session_destroy(struct iscsi_cls_session *cls_session) { struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); - iscsi_r2tpool_free(cls_session->dd_data); + iscsi_tcp_r2tpool_free(cls_session->dd_data); iscsi_session_teardown(cls_session); iscsi_host_remove(shost); iscsi_host_free(shost); } -static int iscsi_tcp_slave_configure(struct scsi_device *sdev) +static int iscsi_sw_tcp_slave_configure(struct scsi_device *sdev) { blk_queue_bounce_limit(sdev->request_queue, BLK_BOUNCE_ANY); blk_queue_dma_alignment(sdev->request_queue, 0); return 0; } -static struct scsi_host_template iscsi_sht = { +static struct scsi_host_template iscsi_sw_tcp_sht = { .module = THIS_MODULE, .name = "iSCSI Initiator over TCP/IP", .queuecommand = iscsi_queuecommand, @@ -1913,12 +833,12 @@ static struct scsi_host_template iscsi_sht = { .eh_device_reset_handler= iscsi_eh_device_reset, .eh_target_reset_handler= iscsi_eh_target_reset, .use_clustering = DISABLE_CLUSTERING, - .slave_configure = iscsi_tcp_slave_configure, + .slave_configure = iscsi_sw_tcp_slave_configure, .proc_name = "iscsi_tcp", .this_id = -1, }; -static struct iscsi_transport iscsi_tcp_transport = { +static struct iscsi_transport iscsi_sw_tcp_transport = { .owner = THIS_MODULE, .name = "tcp", .caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST @@ -1951,32 +871,36 @@ static struct iscsi_transport iscsi_tcp_transport = { ISCSI_HOST_INITIATOR_NAME | ISCSI_HOST_NETDEV_NAME, /* session management */ - .create_session = iscsi_tcp_session_create, - .destroy_session = iscsi_tcp_session_destroy, + .create_session = iscsi_sw_tcp_session_create, + .destroy_session = iscsi_sw_tcp_session_destroy, /* connection management */ - .create_conn = iscsi_tcp_conn_create, - .bind_conn = iscsi_tcp_conn_bind, - .destroy_conn = iscsi_tcp_conn_destroy, - .set_param = iscsi_conn_set_param, - .get_conn_param = iscsi_tcp_conn_get_param, + .create_conn = iscsi_sw_tcp_conn_create, + .bind_conn = iscsi_sw_tcp_conn_bind, + .destroy_conn = iscsi_sw_tcp_conn_destroy, + .set_param = iscsi_sw_tcp_conn_set_param, + .get_conn_param = iscsi_sw_tcp_conn_get_param, .get_session_param = iscsi_session_get_param, .start_conn = iscsi_conn_start, - .stop_conn = iscsi_tcp_conn_stop, + .stop_conn = iscsi_sw_tcp_conn_stop, /* iscsi host params */ .get_host_param = iscsi_host_get_param, .set_host_param = iscsi_host_set_param, /* IO */ .send_pdu = iscsi_conn_send_pdu, - .get_stats = iscsi_conn_get_stats, + .get_stats = iscsi_sw_tcp_conn_get_stats, + /* iscsi task/cmd helpers */ .init_task = iscsi_tcp_task_init, .xmit_task = iscsi_tcp_task_xmit, .cleanup_task = iscsi_tcp_cleanup_task, + /* low level pdu helpers */ + .xmit_pdu = iscsi_sw_tcp_pdu_xmit, + .init_pdu = iscsi_sw_tcp_pdu_init, + .alloc_pdu = iscsi_sw_tcp_pdu_alloc, /* recovery */ .session_recovery_timedout = iscsi_session_recovery_timedout, }; -static int __init -iscsi_tcp_init(void) +static int __init iscsi_sw_tcp_init(void) { if (iscsi_max_lun < 1) { printk(KERN_ERR "iscsi_tcp: Invalid max_lun value of %u\n", @@ -1984,19 +908,18 @@ iscsi_tcp_init(void) return -EINVAL; } - iscsi_tcp_scsi_transport = iscsi_register_transport( - &iscsi_tcp_transport); - if (!iscsi_tcp_scsi_transport) + iscsi_sw_tcp_scsi_transport = iscsi_register_transport( + &iscsi_sw_tcp_transport); + if (!iscsi_sw_tcp_scsi_transport) return -ENODEV; return 0; } -static void __exit -iscsi_tcp_exit(void) +static void __exit iscsi_sw_tcp_exit(void) { - iscsi_unregister_transport(&iscsi_tcp_transport); + iscsi_unregister_transport(&iscsi_sw_tcp_transport); } -module_init(iscsi_tcp_init); -module_exit(iscsi_tcp_exit); +module_init(iscsi_sw_tcp_init); +module_exit(iscsi_sw_tcp_exit); diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h index 498d8ca..ca6b7bc 100644 --- a/drivers/scsi/iscsi_tcp.h +++ b/drivers/scsi/iscsi_tcp.h @@ -19,67 +19,27 @@ * See the file COPYING included with this distribution for more details. */ -#ifndef ISCSI_TCP_H -#define ISCSI_TCP_H +#ifndef ISCSI_SW_TCP_H +#define ISCSI_SW_TCP_H #include <scsi/libiscsi.h> +#include <scsi/libiscsi_tcp.h> -struct crypto_hash; struct socket; struct iscsi_tcp_conn; -struct iscsi_segment; - -typedef int iscsi_segment_done_fn_t(struct iscsi_tcp_conn *, - struct iscsi_segment *); - -struct iscsi_segment { - unsigned char *data; - unsigned int size; - unsigned int copied; - unsigned int total_size; - unsigned int total_copied; - - struct hash_desc *hash; - unsigned char recv_digest[ISCSI_DIGEST_SIZE]; - unsigned char digest[ISCSI_DIGEST_SIZE]; - unsigned int digest_len; - - struct scatterlist *sg; - void *sg_mapped; - unsigned int sg_offset; - - iscsi_segment_done_fn_t *done; -}; - -/* Socket connection recieve helper */ -struct iscsi_tcp_recv { - struct iscsi_hdr *hdr; - struct iscsi_segment segment; - - /* Allocate buffer for BHS + AHS */ - uint32_t hdr_buf[64]; - - /* copied and flipped values */ - int datalen; -}; /* Socket connection send helper */ -struct iscsi_tcp_send { +struct iscsi_sw_tcp_send { struct iscsi_hdr *hdr; struct iscsi_segment segment; struct iscsi_segment data_segment; }; -struct iscsi_tcp_conn { +struct iscsi_sw_tcp_conn { struct iscsi_conn *iscsi_conn; struct socket *sock; - int stop_stage; /* conn_stop() flag: * - * stop to recover, * - * stop to terminate */ - /* control data */ - struct iscsi_tcp_recv in; /* TCP receive context */ - struct iscsi_tcp_send out; /* TCP send context */ + struct iscsi_sw_tcp_send out; /* old values for socket callbacks */ void (*old_data_ready)(struct sock *, int); void (*old_state_change)(struct sock *); @@ -93,41 +53,13 @@ struct iscsi_tcp_conn { uint32_t sendpage_failures_cnt; uint32_t discontiguous_hdr_cnt; - int error; - ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int); }; -struct iscsi_data_task { - struct iscsi_data hdr; /* PDU */ - char hdrext[ISCSI_DIGEST_SIZE];/* Header-Digest */ -}; - -struct iscsi_r2t_info { - __be32 ttt; /* copied from R2T */ - __be32 exp_statsn; /* copied from R2T */ - uint32_t data_length; /* copied from R2T */ - uint32_t data_offset; /* copied from R2T */ - int sent; /* R2T sequence progress */ - int data_count; /* DATA-Out payload progress */ - int solicit_datasn; - struct iscsi_data_task dtask; /* Data-Out header buf */ -}; - -struct iscsi_tcp_task { - struct iscsi_hdr_buff { - struct iscsi_cmd cmd_hdr; - char hdrextbuf[ISCSI_MAX_AHS_SIZE + +struct iscsi_sw_tcp_hdrbuf { + struct iscsi_hdr hdrbuf; + char hdrextbuf[ISCSI_MAX_AHS_SIZE + ISCSI_DIGEST_SIZE]; - } hdr; - - int sent; - uint32_t exp_datasn; /* expected target's R2TSN/DataSN */ - int data_offset; - struct iscsi_r2t_info *r2t; /* in progress R2T */ - struct iscsi_pool r2tpool; - struct kfifo *r2tqueue; - struct iscsi_data_task unsol_dtask; /* Data-Out header buf */ }; -#endif /* ISCSI_H */ +#endif /* ISCSI_SW_TCP_H */ diff --git a/drivers/scsi/libfc/Makefile b/drivers/scsi/libfc/Makefile new file mode 100644 index 0000000..55f982d --- /dev/null +++ b/drivers/scsi/libfc/Makefile @@ -0,0 +1,12 @@ +# $Id: Makefile + +obj-$(CONFIG_LIBFC) += libfc.o + +libfc-objs := \ + fc_disc.o \ + fc_exch.o \ + fc_elsct.o \ + fc_frame.o \ + fc_lport.o \ + fc_rport.o \ + fc_fcp.o diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c new file mode 100644 index 0000000..dd1564c --- /dev/null +++ b/drivers/scsi/libfc/fc_disc.c @@ -0,0 +1,845 @@ +/* + * Copyright(c) 2007 - 2008 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +/* + * Target Discovery + * + * This block discovers all FC-4 remote ports, including FCP initiators. It + * also handles RSCN events and re-discovery if necessary. + */ + +/* + * DISC LOCKING + * + * The disc mutex is can be locked when acquiring rport locks, but may not + * be held when acquiring the lport lock. Refer to fc_lport.c for more + * details. + */ + +#include <linux/timer.h> +#include <linux/err.h> +#include <asm/unaligned.h> + +#include <scsi/fc/fc_gs.h> + +#include <scsi/libfc.h> + +#define FC_DISC_RETRY_LIMIT 3 /* max retries */ +#define FC_DISC_RETRY_DELAY 500UL /* (msecs) delay */ + +#define FC_DISC_DELAY 3 + +static int fc_disc_debug; + +#define FC_DEBUG_DISC(fmt...) \ + do { \ + if (fc_disc_debug) \ + FC_DBG(fmt); \ + } while (0) + +static void fc_disc_gpn_ft_req(struct fc_disc *); +static void fc_disc_gpn_ft_resp(struct fc_seq *, struct fc_frame *, void *); +static int fc_disc_new_target(struct fc_disc *, struct fc_rport *, + struct fc_rport_identifiers *); +static void fc_disc_del_target(struct fc_disc *, struct fc_rport *); +static void fc_disc_done(struct fc_disc *); +static void fc_disc_timeout(struct work_struct *); +static void fc_disc_single(struct fc_disc *, struct fc_disc_port *); +static void fc_disc_restart(struct fc_disc *); + +/** + * fc_disc_lookup_rport - lookup a remote port by port_id + * @lport: Fibre Channel host port instance + * @port_id: remote port port_id to match + */ +struct fc_rport *fc_disc_lookup_rport(const struct fc_lport *lport, + u32 port_id) +{ + const struct fc_disc *disc = &lport->disc; + struct fc_rport *rport, *found = NULL; + struct fc_rport_libfc_priv *rdata; + int disc_found = 0; + + list_for_each_entry(rdata, &disc->rports, peers) { + rport = PRIV_TO_RPORT(rdata); + if (rport->port_id == port_id) { + disc_found = 1; + found = rport; + break; + } + } + + if (!disc_found) + found = NULL; + + return found; +} + +/** + * fc_disc_stop_rports - delete all the remote ports associated with the lport + * @disc: The discovery job to stop rports on + * + * Locking Note: This function expects that the lport mutex is locked before + * calling it. + */ +void fc_disc_stop_rports(struct fc_disc *disc) +{ + struct fc_lport *lport; + struct fc_rport *rport; + struct fc_rport_libfc_priv *rdata, *next; + + lport = disc->lport; + + mutex_lock(&disc->disc_mutex); + list_for_each_entry_safe(rdata, next, &disc->rports, peers) { + rport = PRIV_TO_RPORT(rdata); + list_del(&rdata->peers); + lport->tt.rport_logoff(rport); + } + + mutex_unlock(&disc->disc_mutex); +} + +/** + * fc_disc_rport_callback - Event handler for rport events + * @lport: The lport which is receiving the event + * @rport: The rport which the event has occured on + * @event: The event that occured + * + * Locking Note: The rport lock should not be held when calling + * this function. + */ +static void fc_disc_rport_callback(struct fc_lport *lport, + struct fc_rport *rport, + enum fc_rport_event event) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_disc *disc = &lport->disc; + int found = 0; + + FC_DEBUG_DISC("Received a %d event for port (%6x)\n", event, + rport->port_id); + + if (event == RPORT_EV_CREATED) { + if (disc) { + found = 1; + mutex_lock(&disc->disc_mutex); + list_add_tail(&rdata->peers, &disc->rports); + mutex_unlock(&disc->disc_mutex); + } + } + + if (!found) + FC_DEBUG_DISC("The rport (%6x) is not maintained " + "by the discovery layer\n", rport->port_id); +} + +/** + * fc_disc_recv_rscn_req - Handle Registered State Change Notification (RSCN) + * @sp: Current sequence of the RSCN exchange + * @fp: RSCN Frame + * @lport: Fibre Channel host port instance + * + * Locking Note: This function expects that the disc_mutex is locked + * before it is called. + */ +static void fc_disc_recv_rscn_req(struct fc_seq *sp, struct fc_frame *fp, + struct fc_disc *disc) +{ + struct fc_lport *lport; + struct fc_rport *rport; + struct fc_rport_libfc_priv *rdata; + struct fc_els_rscn *rp; + struct fc_els_rscn_page *pp; + struct fc_seq_els_data rjt_data; + unsigned int len; + int redisc = 0; + enum fc_els_rscn_ev_qual ev_qual; + enum fc_els_rscn_addr_fmt fmt; + LIST_HEAD(disc_ports); + struct fc_disc_port *dp, *next; + + lport = disc->lport; + + FC_DEBUG_DISC("Received an RSCN event on port (%6x)\n", + fc_host_port_id(lport->host)); + + /* make sure the frame contains an RSCN message */ + rp = fc_frame_payload_get(fp, sizeof(*rp)); + if (!rp) + goto reject; + /* make sure the page length is as expected (4 bytes) */ + if (rp->rscn_page_len != sizeof(*pp)) + goto reject; + /* get the RSCN payload length */ + len = ntohs(rp->rscn_plen); + if (len < sizeof(*rp)) + goto reject; + /* make sure the frame contains the expected payload */ + rp = fc_frame_payload_get(fp, len); + if (!rp) + goto reject; + /* payload must be a multiple of the RSCN page size */ + len -= sizeof(*rp); + if (len % sizeof(*pp)) + goto reject; + + for (pp = (void *)(rp + 1); len > 0; len -= sizeof(*pp), pp++) { + ev_qual = pp->rscn_page_flags >> ELS_RSCN_EV_QUAL_BIT; + ev_qual &= ELS_RSCN_EV_QUAL_MASK; + fmt = pp->rscn_page_flags >> ELS_RSCN_ADDR_FMT_BIT; + fmt &= ELS_RSCN_ADDR_FMT_MASK; + /* + * if we get an address format other than port + * (area, domain, fabric), then do a full discovery + */ + switch (fmt) { + case ELS_ADDR_FMT_PORT: + FC_DEBUG_DISC("Port address format for port (%6x)\n", + ntoh24(pp->rscn_fid)); + dp = kzalloc(sizeof(*dp), GFP_KERNEL); + if (!dp) { + redisc = 1; + break; + } + dp->lp = lport; + dp->ids.port_id = ntoh24(pp->rscn_fid); + dp->ids.port_name = -1; + dp->ids.node_name = -1; + dp->ids.roles = FC_RPORT_ROLE_UNKNOWN; + list_add_tail(&dp->peers, &disc_ports); + break; + case ELS_ADDR_FMT_AREA: + case ELS_ADDR_FMT_DOM: + case ELS_ADDR_FMT_FAB: + default: + FC_DEBUG_DISC("Address format is (%d)\n", fmt); + redisc = 1; + break; + } + } + lport->tt.seq_els_rsp_send(sp, ELS_LS_ACC, NULL); + if (redisc) { + FC_DEBUG_DISC("RSCN received: rediscovering\n"); + fc_disc_restart(disc); + } else { + FC_DEBUG_DISC("RSCN received: not rediscovering. " + "redisc %d state %d in_prog %d\n", + redisc, lport->state, disc->pending); + list_for_each_entry_safe(dp, next, &disc_ports, peers) { + list_del(&dp->peers); + rport = lport->tt.rport_lookup(lport, dp->ids.port_id); + if (rport) { + rdata = RPORT_TO_PRIV(rport); + list_del(&rdata->peers); + lport->tt.rport_logoff(rport); + } + fc_disc_single(disc, dp); + } + } + fc_frame_free(fp); + return; +reject: + FC_DEBUG_DISC("Received a bad RSCN frame\n"); + rjt_data.fp = NULL; + rjt_data.reason = ELS_RJT_LOGIC; + rjt_data.explan = ELS_EXPL_NONE; + lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &rjt_data); + fc_frame_free(fp); +} + +/** + * fc_disc_recv_req - Handle incoming requests + * @sp: Current sequence of the request exchange + * @fp: The frame + * @lport: The FC local port + * + * Locking Note: This function is called from the EM and will lock + * the disc_mutex before calling the handler for the + * request. + */ +static void fc_disc_recv_req(struct fc_seq *sp, struct fc_frame *fp, + struct fc_lport *lport) +{ + u8 op; + struct fc_disc *disc = &lport->disc; + + op = fc_frame_payload_op(fp); + switch (op) { + case ELS_RSCN: + mutex_lock(&disc->disc_mutex); + fc_disc_recv_rscn_req(sp, fp, disc); + mutex_unlock(&disc->disc_mutex); + break; + default: + FC_DBG("Received an unsupported request. opcode (%x)\n", op); + break; + } +} + +/** + * fc_disc_restart - Restart discovery + * @lport: FC discovery context + * + * Locking Note: This function expects that the disc mutex + * is already locked. + */ +static void fc_disc_restart(struct fc_disc *disc) +{ + struct fc_rport *rport; + struct fc_rport_libfc_priv *rdata, *next; + struct fc_lport *lport = disc->lport; + + FC_DEBUG_DISC("Restarting discovery for port (%6x)\n", + fc_host_port_id(lport->host)); + + list_for_each_entry_safe(rdata, next, &disc->rports, peers) { + rport = PRIV_TO_RPORT(rdata); + FC_DEBUG_DISC("list_del(%6x)\n", rport->port_id); + list_del(&rdata->peers); + lport->tt.rport_logoff(rport); + } + + disc->requested = 1; + if (!disc->pending) + fc_disc_gpn_ft_req(disc); +} + +/** + * fc_disc_start - Fibre Channel Target discovery + * @lport: FC local port + * + * Returns non-zero if discovery cannot be started. + */ +static void fc_disc_start(void (*disc_callback)(struct fc_lport *, + enum fc_disc_event), + struct fc_lport *lport) +{ + struct fc_rport *rport; + struct fc_rport_identifiers ids; + struct fc_disc *disc = &lport->disc; + + /* + * At this point we may have a new disc job or an existing + * one. Either way, let's lock when we make changes to it + * and send the GPN_FT request. + */ + mutex_lock(&disc->disc_mutex); + + disc->disc_callback = disc_callback; + + /* + * If not ready, or already running discovery, just set request flag. + */ + disc->requested = 1; + + if (disc->pending) { + mutex_unlock(&disc->disc_mutex); + return; + } + + /* + * Handle point-to-point mode as a simple discovery + * of the remote port. Yucky, yucky, yuck, yuck! + */ + rport = disc->lport->ptp_rp; + if (rport) { + ids.port_id = rport->port_id; + ids.port_name = rport->port_name; + ids.node_name = rport->node_name; + ids.roles = FC_RPORT_ROLE_UNKNOWN; + get_device(&rport->dev); + + if (!fc_disc_new_target(disc, rport, &ids)) { + disc->event = DISC_EV_SUCCESS; + fc_disc_done(disc); + } + put_device(&rport->dev); + } else { + fc_disc_gpn_ft_req(disc); /* get ports by FC-4 type */ + } + + mutex_unlock(&disc->disc_mutex); +} + +static struct fc_rport_operations fc_disc_rport_ops = { + .event_callback = fc_disc_rport_callback, +}; + +/** + * fc_disc_new_target - Handle new target found by discovery + * @lport: FC local port + * @rport: The previous FC remote port (NULL if new remote port) + * @ids: Identifiers for the new FC remote port + * + * Locking Note: This function expects that the disc_mutex is locked + * before it is called. + */ +static int fc_disc_new_target(struct fc_disc *disc, + struct fc_rport *rport, + struct fc_rport_identifiers *ids) +{ + struct fc_lport *lport = disc->lport; + struct fc_rport_libfc_priv *rp; + int error = 0; + + if (rport && ids->port_name) { + if (rport->port_name == -1) { + /* + * Set WWN and fall through to notify of create. + */ + fc_rport_set_name(rport, ids->port_name, + rport->node_name); + } else if (rport->port_name != ids->port_name) { + /* + * This is a new port with the same FCID as + * a previously-discovered port. Presumably the old + * port logged out and a new port logged in and was + * assigned the same FCID. This should be rare. + * Delete the old one and fall thru to re-create. + */ + fc_disc_del_target(disc, rport); + rport = NULL; + } + } + if (((ids->port_name != -1) || (ids->port_id != -1)) && + ids->port_id != fc_host_port_id(lport->host) && + ids->port_name != lport->wwpn) { + if (!rport) { + rport = lport->tt.rport_lookup(lport, ids->port_id); + if (!rport) { + struct fc_disc_port dp; + dp.lp = lport; + dp.ids.port_id = ids->port_id; + dp.ids.port_name = ids->port_name; + dp.ids.node_name = ids->node_name; + dp.ids.roles = ids->roles; + rport = fc_rport_rogue_create(&dp); + } + if (!rport) + error = -ENOMEM; + } + if (rport) { + rp = rport->dd_data; + rp->ops = &fc_disc_rport_ops; + rp->rp_state = RPORT_ST_INIT; + lport->tt.rport_login(rport); + } + } + return error; +} + +/** + * fc_disc_del_target - Delete a target + * @disc: FC discovery context + * @rport: The remote port to be removed + */ +static void fc_disc_del_target(struct fc_disc *disc, struct fc_rport *rport) +{ + struct fc_lport *lport = disc->lport; + struct fc_rport_libfc_priv *rdata = RPORT_TO_PRIV(rport); + list_del(&rdata->peers); + lport->tt.rport_logoff(rport); +} + +/** + * fc_disc_done - Discovery has been completed + * @disc: FC discovery context + */ +static void fc_disc_done(struct fc_disc *disc) +{ + struct fc_lport *lport = disc->lport; + + FC_DEBUG_DISC("Discovery complete for port (%6x)\n", + fc_host_port_id(lport->host)); + + disc->disc_callback(lport, disc->event); + disc->event = DISC_EV_NONE; + + if (disc->requested) + fc_disc_gpn_ft_req(disc); + else + disc->pending = 0; +} + +/** + * fc_disc_error - Handle error on dNS request + * @disc: FC discovery context + * @fp: The frame pointer + */ +static void fc_disc_error(struct fc_disc *disc, struct fc_frame *fp) +{ + struct fc_lport *lport = disc->lport; + unsigned long delay = 0; + if (fc_disc_debug) + FC_DBG("Error %ld, retries %d/%d\n", + PTR_ERR(fp), disc->retry_count, + FC_DISC_RETRY_LIMIT); + + if (!fp || PTR_ERR(fp) == -FC_EX_TIMEOUT) { + /* + * Memory allocation failure, or the exchange timed out, + * retry after delay. + */ + if (disc->retry_count < FC_DISC_RETRY_LIMIT) { + /* go ahead and retry */ + if (!fp) + delay = msecs_to_jiffies(FC_DISC_RETRY_DELAY); + else { + delay = msecs_to_jiffies(lport->e_d_tov); + + /* timeout faster first time */ + if (!disc->retry_count) + delay /= 4; + } + disc->retry_count++; + schedule_delayed_work(&disc->disc_work, delay); + } else { + /* exceeded retries */ + disc->event = DISC_EV_FAILED; + fc_disc_done(disc); + } + } +} + +/** + * fc_disc_gpn_ft_req - Send Get Port Names by FC-4 type (GPN_FT) request + * @lport: FC discovery context + * + * Locking Note: This function expects that the disc_mutex is locked + * before it is called. + */ +static void fc_disc_gpn_ft_req(struct fc_disc *disc) +{ + struct fc_frame *fp; + struct fc_lport *lport = disc->lport; + + WARN_ON(!fc_lport_test_ready(lport)); + + disc->pending = 1; + disc->requested = 0; + + disc->buf_len = 0; + disc->seq_count = 0; + fp = fc_frame_alloc(lport, + sizeof(struct fc_ct_hdr) + + sizeof(struct fc_ns_gid_ft)); + if (!fp) + goto err; + + if (lport->tt.elsct_send(lport, NULL, fp, + FC_NS_GPN_FT, + fc_disc_gpn_ft_resp, + disc, lport->e_d_tov)) + return; +err: + fc_disc_error(disc, fp); +} + +/** + * fc_disc_gpn_ft_parse - Parse the list of IDs and names resulting from a request + * @lport: Fibre Channel host port instance + * @buf: GPN_FT response buffer + * @len: size of response buffer + */ +static int fc_disc_gpn_ft_parse(struct fc_disc *disc, void *buf, size_t len) +{ + struct fc_lport *lport; + struct fc_gpn_ft_resp *np; + char *bp; + size_t plen; + size_t tlen; + int error = 0; + struct fc_disc_port dp; + struct fc_rport *rport; + struct fc_rport_libfc_priv *rdata; + + lport = disc->lport; + + /* + * Handle partial name record left over from previous call. + */ + bp = buf; + plen = len; + np = (struct fc_gpn_ft_resp *)bp; + tlen = disc->buf_len; + if (tlen) { + WARN_ON(tlen >= sizeof(*np)); + plen = sizeof(*np) - tlen; + WARN_ON(plen <= 0); + WARN_ON(plen >= sizeof(*np)); + if (plen > len) + plen = len; + np = &disc->partial_buf; + memcpy((char *)np + tlen, bp, plen); + + /* + * Set bp so that the loop below will advance it to the + * first valid full name element. + */ + bp -= tlen; + len += tlen; + plen += tlen; + disc->buf_len = (unsigned char) plen; + if (plen == sizeof(*np)) + disc->buf_len = 0; + } + + /* + * Handle full name records, including the one filled from above. + * Normally, np == bp and plen == len, but from the partial case above, + * bp, len describe the overall buffer, and np, plen describe the + * partial buffer, which if would usually be full now. + * After the first time through the loop, things return to "normal". + */ + while (plen >= sizeof(*np)) { + dp.lp = lport; + dp.ids.port_id = ntoh24(np->fp_fid); + dp.ids.port_name = ntohll(np->fp_wwpn); + dp.ids.node_name = -1; + dp.ids.roles = FC_RPORT_ROLE_UNKNOWN; + + if ((dp.ids.port_id != fc_host_port_id(lport->host)) && + (dp.ids.port_name != lport->wwpn)) { + rport = fc_rport_rogue_create(&dp); + if (rport) { + rdata = rport->dd_data; + rdata->ops = &fc_disc_rport_ops; + rdata->local_port = lport; + lport->tt.rport_login(rport); + } else + FC_DBG("Failed to allocate memory for " + "the newly discovered port (%6x)\n", + dp.ids.port_id); + } + + if (np->fp_flags & FC_NS_FID_LAST) { + disc->event = DISC_EV_SUCCESS; + fc_disc_done(disc); + len = 0; + break; + } + len -= sizeof(*np); + bp += sizeof(*np); + np = (struct fc_gpn_ft_resp *)bp; + plen = len; + } + + /* + * Save any partial record at the end of the buffer for next time. + */ + if (error == 0 && len > 0 && len < sizeof(*np)) { + if (np != &disc->partial_buf) { + FC_DEBUG_DISC("Partial buffer remains " + "for discovery by (%6x)\n", + fc_host_port_id(lport->host)); + memcpy(&disc->partial_buf, np, len); + } + disc->buf_len = (unsigned char) len; + } else { + disc->buf_len = 0; + } + return error; +} + +/* + * Handle retry of memory allocation for remote ports. + */ +static void fc_disc_timeout(struct work_struct *work) +{ + struct fc_disc *disc = container_of(work, + struct fc_disc, + disc_work.work); + mutex_lock(&disc->disc_mutex); + if (disc->requested && !disc->pending) + fc_disc_gpn_ft_req(disc); + mutex_unlock(&disc->disc_mutex); +} + +/** + * fc_disc_gpn_ft_resp - Handle a response frame from Get Port Names (GPN_FT) + * @sp: Current sequence of GPN_FT exchange + * @fp: response frame + * @lp_arg: Fibre Channel host port instance + * + * Locking Note: This function expects that the disc_mutex is locked + * before it is called. + */ +static void fc_disc_gpn_ft_resp(struct fc_seq *sp, struct fc_frame *fp, + void *disc_arg) +{ + struct fc_disc *disc = disc_arg; + struct fc_ct_hdr *cp; + struct fc_frame_header *fh; + unsigned int seq_cnt; + void *buf = NULL; + unsigned int len; + int error; + + FC_DEBUG_DISC("Received a GPN_FT response on port (%6x)\n", + fc_host_port_id(disc->lport->host)); + + if (IS_ERR(fp)) { + fc_disc_error(disc, fp); + return; + } + + WARN_ON(!fc_frame_is_linear(fp)); /* buffer must be contiguous */ + fh = fc_frame_header_get(fp); + len = fr_len(fp) - sizeof(*fh); + seq_cnt = ntohs(fh->fh_seq_cnt); + if (fr_sof(fp) == FC_SOF_I3 && seq_cnt == 0 && + disc->seq_count == 0) { + cp = fc_frame_payload_get(fp, sizeof(*cp)); + if (!cp) { + FC_DBG("GPN_FT response too short, len %d\n", + fr_len(fp)); + } else if (ntohs(cp->ct_cmd) == FC_FS_ACC) { + + /* + * Accepted. Parse response. + */ + buf = cp + 1; + len -= sizeof(*cp); + } else if (ntohs(cp->ct_cmd) == FC_FS_RJT) { + FC_DBG("GPN_FT rejected reason %x exp %x " + "(check zoning)\n", cp->ct_reason, + cp->ct_explan); + disc->event = DISC_EV_FAILED; + fc_disc_done(disc); + } else { + FC_DBG("GPN_FT unexpected response code %x\n", + ntohs(cp->ct_cmd)); + } + } else if (fr_sof(fp) == FC_SOF_N3 && + seq_cnt == disc->seq_count) { + buf = fh + 1; + } else { + FC_DBG("GPN_FT unexpected frame - out of sequence? " + "seq_cnt %x expected %x sof %x eof %x\n", + seq_cnt, disc->seq_count, fr_sof(fp), fr_eof(fp)); + } + if (buf) { + error = fc_disc_gpn_ft_parse(disc, buf, len); + if (error) + fc_disc_error(disc, fp); + else + disc->seq_count++; + } + fc_frame_free(fp); +} + +/** + * fc_disc_single - Discover the directory information for a single target + * @lport: FC local port + * @dp: The port to rediscover + * + * Locking Note: This function expects that the disc_mutex is locked + * before it is called. + */ +static void fc_disc_single(struct fc_disc *disc, struct fc_disc_port *dp) +{ + struct fc_lport *lport; + struct fc_rport *rport; + struct fc_rport *new_rport; + struct fc_rport_libfc_priv *rdata; + + lport = disc->lport; + + if (dp->ids.port_id == fc_host_port_id(lport->host)) + goto out; + + rport = lport->tt.rport_lookup(lport, dp->ids.port_id); + if (rport) + fc_disc_del_target(disc, rport); + + new_rport = fc_rport_rogue_create(dp); + if (new_rport) { + rdata = new_rport->dd_data; + rdata->ops = &fc_disc_rport_ops; + kfree(dp); + lport->tt.rport_login(new_rport); + } + return; +out: + kfree(dp); +} + +/** + * fc_disc_stop - Stop discovery for a given lport + * @lport: The lport that discovery should stop for + */ +void fc_disc_stop(struct fc_lport *lport) +{ + struct fc_disc *disc = &lport->disc; + + if (disc) { + cancel_delayed_work_sync(&disc->disc_work); + fc_disc_stop_rports(disc); + } +} + +/** + * fc_disc_stop_final - Stop discovery for a given lport + * @lport: The lport that discovery should stop for + * + * This function will block until discovery has been + * completely stopped and all rports have been deleted. + */ +void fc_disc_stop_final(struct fc_lport *lport) +{ + fc_disc_stop(lport); + lport->tt.rport_flush_queue(); +} + +/** + * fc_disc_init - Initialize the discovery block + * @lport: FC local port + */ +int fc_disc_init(struct fc_lport *lport) +{ + struct fc_disc *disc; + + if (!lport->tt.disc_start) + lport->tt.disc_start = fc_disc_start; + + if (!lport->tt.disc_stop) + lport->tt.disc_stop = fc_disc_stop; + + if (!lport->tt.disc_stop_final) + lport->tt.disc_stop_final = fc_disc_stop_final; + + if (!lport->tt.disc_recv_req) + lport->tt.disc_recv_req = fc_disc_recv_req; + + if (!lport->tt.rport_lookup) + lport->tt.rport_lookup = fc_disc_lookup_rport; + + disc = &lport->disc; + INIT_DELAYED_WORK(&disc->disc_work, fc_disc_timeout); + mutex_init(&disc->disc_mutex); + INIT_LIST_HEAD(&disc->rports); + + disc->lport = lport; + disc->delay = FC_DISC_DELAY; + disc->event = DISC_EV_NONE; + + return 0; +} +EXPORT_SYMBOL(fc_disc_init); diff --git a/drivers/scsi/libfc/fc_elsct.c b/drivers/scsi/libfc/fc_elsct.c new file mode 100644 index 0000000..dd47fe6 --- /dev/null +++ b/drivers/scsi/libfc/fc_elsct.c @@ -0,0 +1,71 @@ +/* + * Copyright(c) 2008 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +/* + * Provide interface to send ELS/CT FC frames + */ + +#include <asm/unaligned.h> +#include <scsi/fc/fc_gs.h> +#include <scsi/fc/fc_ns.h> +#include <scsi/fc/fc_els.h> +#include <scsi/libfc.h> +#include <scsi/fc_encode.h> + +/* + * fc_elsct_send - sends ELS/CT frame + */ +static struct fc_seq *fc_elsct_send(struct fc_lport *lport, + struct fc_rport *rport, + struct fc_frame *fp, + unsigned int op, + void (*resp)(struct fc_seq *, + struct fc_frame *fp, + void *arg), + void *arg, u32 timer_msec) +{ + enum fc_rctl r_ctl; + u32 did; + enum fc_fh_type fh_type; + int rc; + + /* ELS requests */ + if ((op >= ELS_LS_RJT) && (op <= ELS_AUTH_ELS)) + rc = fc_els_fill(lport, rport, fp, op, &r_ctl, &did, &fh_type); + else + /* CT requests */ + rc = fc_ct_fill(lport, fp, op, &r_ctl, &did, &fh_type); + + if (rc) + return NULL; + + fc_fill_fc_hdr(fp, r_ctl, did, fc_host_port_id(lport->host), fh_type, + FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0); + + return lport->tt.exch_seq_send(lport, fp, resp, NULL, arg, timer_msec); +} + +int fc_elsct_init(struct fc_lport *lport) +{ + if (!lport->tt.elsct_send) + lport->tt.elsct_send = fc_elsct_send; + + return 0; +} +EXPORT_SYMBOL(fc_elsct_init); diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c new file mode 100644 index 0000000..66db08a --- /dev/null +++ b/drivers/scsi/libfc/fc_exch.c @@ -0,0 +1,1970 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * Copyright(c) 2008 Red Hat, Inc. All rights reserved. + * Copyright(c) 2008 Mike Christie + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +/* + * Fibre Channel exchange and sequence handling. + */ + +#include <linux/timer.h> +#include <linux/gfp.h> +#include <linux/err.h> + +#include <scsi/fc/fc_fc2.h> + +#include <scsi/libfc.h> +#include <scsi/fc_encode.h> + +#define FC_DEF_R_A_TOV (10 * 1000) /* resource allocation timeout */ + +/* + * fc_exch_debug can be set in debugger or at compile time to get more logs. + */ +static int fc_exch_debug; + +#define FC_DEBUG_EXCH(fmt...) \ + do { \ + if (fc_exch_debug) \ + FC_DBG(fmt); \ + } while (0) + +static struct kmem_cache *fc_em_cachep; /* cache for exchanges */ + +/* + * Structure and function definitions for managing Fibre Channel Exchanges + * and Sequences. + * + * The three primary structures used here are fc_exch_mgr, fc_exch, and fc_seq. + * + * fc_exch_mgr holds the exchange state for an N port + * + * fc_exch holds state for one exchange and links to its active sequence. + * + * fc_seq holds the state for an individual sequence. + */ + +/* + * Exchange manager. + * + * This structure is the center for creating exchanges and sequences. + * It manages the allocation of exchange IDs. + */ +struct fc_exch_mgr { + enum fc_class class; /* default class for sequences */ + spinlock_t em_lock; /* exchange manager lock, + must be taken before ex_lock */ + u16 last_xid; /* last allocated exchange ID */ + u16 min_xid; /* min exchange ID */ + u16 max_xid; /* max exchange ID */ + u16 max_read; /* max exchange ID for read */ + u16 last_read; /* last xid allocated for read */ + u32 total_exches; /* total allocated exchanges */ + struct list_head ex_list; /* allocated exchanges list */ + struct fc_lport *lp; /* fc device instance */ + mempool_t *ep_pool; /* reserve ep's */ + + /* + * currently exchange mgr stats are updated but not used. + * either stats can be expose via sysfs or remove them + * all together if not used XXX + */ + struct { + atomic_t no_free_exch; + atomic_t no_free_exch_xid; + atomic_t xid_not_found; + atomic_t xid_busy; + atomic_t seq_not_found; + atomic_t non_bls_resp; + } stats; + struct fc_exch **exches; /* for exch pointers indexed by xid */ +}; +#define fc_seq_exch(sp) container_of(sp, struct fc_exch, seq) + +static void fc_exch_rrq(struct fc_exch *); +static void fc_seq_ls_acc(struct fc_seq *); +static void fc_seq_ls_rjt(struct fc_seq *, enum fc_els_rjt_reason, + enum fc_els_rjt_explan); +static void fc_exch_els_rec(struct fc_seq *, struct fc_frame *); +static void fc_exch_els_rrq(struct fc_seq *, struct fc_frame *); +static struct fc_seq *fc_seq_start_next_locked(struct fc_seq *sp); + +/* + * Internal implementation notes. + * + * The exchange manager is one by default in libfc but LLD may choose + * to have one per CPU. The sequence manager is one per exchange manager + * and currently never separated. + * + * Section 9.8 in FC-FS-2 specifies: "The SEQ_ID is a one-byte field + * assigned by the Sequence Initiator that shall be unique for a specific + * D_ID and S_ID pair while the Sequence is open." Note that it isn't + * qualified by exchange ID, which one might think it would be. + * In practice this limits the number of open sequences and exchanges to 256 + * per session. For most targets we could treat this limit as per exchange. + * + * The exchange and its sequence are freed when the last sequence is received. + * It's possible for the remote port to leave an exchange open without + * sending any sequences. + * + * Notes on reference counts: + * + * Exchanges are reference counted and exchange gets freed when the reference + * count becomes zero. + * + * Timeouts: + * Sequences are timed out for E_D_TOV and R_A_TOV. + * + * Sequence event handling: + * + * The following events may occur on initiator sequences: + * + * Send. + * For now, the whole thing is sent. + * Receive ACK + * This applies only to class F. + * The sequence is marked complete. + * ULP completion. + * The upper layer calls fc_exch_done() when done + * with exchange and sequence tuple. + * RX-inferred completion. + * When we receive the next sequence on the same exchange, we can + * retire the previous sequence ID. (XXX not implemented). + * Timeout. + * R_A_TOV frees the sequence ID. If we're waiting for ACK, + * E_D_TOV causes abort and calls upper layer response handler + * with FC_EX_TIMEOUT error. + * Receive RJT + * XXX defer. + * Send ABTS + * On timeout. + * + * The following events may occur on recipient sequences: + * + * Receive + * Allocate sequence for first frame received. + * Hold during receive handler. + * Release when final frame received. + * Keep status of last N of these for the ELS RES command. XXX TBD. + * Receive ABTS + * Deallocate sequence + * Send RJT + * Deallocate + * + * For now, we neglect conditions where only part of a sequence was + * received or transmitted, or where out-of-order receipt is detected. + */ + +/* + * Locking notes: + * + * The EM code run in a per-CPU worker thread. + * + * To protect against concurrency between a worker thread code and timers, + * sequence allocation and deallocation must be locked. + * - exchange refcnt can be done atomicly without locks. + * - sequence allocation must be locked by exch lock. + * - If the em_lock and ex_lock must be taken at the same time, then the + * em_lock must be taken before the ex_lock. + */ + +/* + * opcode names for debugging. + */ +static char *fc_exch_rctl_names[] = FC_RCTL_NAMES_INIT; + +#define FC_TABLE_SIZE(x) (sizeof(x) / sizeof(x[0])) + +static inline const char *fc_exch_name_lookup(unsigned int op, char **table, + unsigned int max_index) +{ + const char *name = NULL; + + if (op < max_index) + name = table[op]; + if (!name) + name = "unknown"; + return name; +} + +static const char *fc_exch_rctl_name(unsigned int op) +{ + return fc_exch_name_lookup(op, fc_exch_rctl_names, + FC_TABLE_SIZE(fc_exch_rctl_names)); +} + +/* + * Hold an exchange - keep it from being freed. + */ +static void fc_exch_hold(struct fc_exch *ep) +{ + atomic_inc(&ep->ex_refcnt); +} + +/* + * setup fc hdr by initializing few more FC header fields and sof/eof. + * Initialized fields by this func: + * - fh_ox_id, fh_rx_id, fh_seq_id, fh_seq_cnt + * - sof and eof + */ +static void fc_exch_setup_hdr(struct fc_exch *ep, struct fc_frame *fp, + u32 f_ctl) +{ + struct fc_frame_header *fh = fc_frame_header_get(fp); + u16 fill; + + fr_sof(fp) = ep->class; + if (ep->seq.cnt) + fr_sof(fp) = fc_sof_normal(ep->class); + + if (f_ctl & FC_FC_END_SEQ) { + fr_eof(fp) = FC_EOF_T; + if (fc_sof_needs_ack(ep->class)) + fr_eof(fp) = FC_EOF_N; + /* + * Form f_ctl. + * The number of fill bytes to make the length a 4-byte + * multiple is the low order 2-bits of the f_ctl. + * The fill itself will have been cleared by the frame + * allocation. + * After this, the length will be even, as expected by + * the transport. + */ + fill = fr_len(fp) & 3; + if (fill) { + fill = 4 - fill; + /* TODO, this may be a problem with fragmented skb */ + skb_put(fp_skb(fp), fill); + hton24(fh->fh_f_ctl, f_ctl | fill); + } + } else { + WARN_ON(fr_len(fp) % 4 != 0); /* no pad to non last frame */ + fr_eof(fp) = FC_EOF_N; + } + + /* + * Initialize remainig fh fields + * from fc_fill_fc_hdr + */ + fh->fh_ox_id = htons(ep->oxid); + fh->fh_rx_id = htons(ep->rxid); + fh->fh_seq_id = ep->seq.id; + fh->fh_seq_cnt = htons(ep->seq.cnt); +} + + +/* + * Release a reference to an exchange. + * If the refcnt goes to zero and the exchange is complete, it is freed. + */ +static void fc_exch_release(struct fc_exch *ep) +{ + struct fc_exch_mgr *mp; + + if (atomic_dec_and_test(&ep->ex_refcnt)) { + mp = ep->em; + if (ep->destructor) + ep->destructor(&ep->seq, ep->arg); + if (ep->lp->tt.exch_put) + ep->lp->tt.exch_put(ep->lp, mp, ep->xid); + WARN_ON(!ep->esb_stat & ESB_ST_COMPLETE); + mempool_free(ep, mp->ep_pool); + } +} + +static int fc_exch_done_locked(struct fc_exch *ep) +{ + int rc = 1; + + /* + * We must check for completion in case there are two threads + * tyring to complete this. But the rrq code will reuse the + * ep, and in that case we only clear the resp and set it as + * complete, so it can be reused by the timer to send the rrq. + */ + ep->resp = NULL; + if (ep->state & FC_EX_DONE) + return rc; + ep->esb_stat |= ESB_ST_COMPLETE; + + if (!(ep->esb_stat & ESB_ST_REC_QUAL)) { + ep->state |= FC_EX_DONE; + if (cancel_delayed_work(&ep->timeout_work)) + atomic_dec(&ep->ex_refcnt); /* drop hold for timer */ + rc = 0; + } + return rc; +} + +static void fc_exch_mgr_delete_ep(struct fc_exch *ep) +{ + struct fc_exch_mgr *mp; + + mp = ep->em; + spin_lock_bh(&mp->em_lock); + WARN_ON(mp->total_exches <= 0); + mp->total_exches--; + mp->exches[ep->xid - mp->min_xid] = NULL; + list_del(&ep->ex_list); + spin_unlock_bh(&mp->em_lock); + fc_exch_release(ep); /* drop hold for exch in mp */ +} + +/* + * Internal version of fc_exch_timer_set - used with lock held. + */ +static inline void fc_exch_timer_set_locked(struct fc_exch *ep, + unsigned int timer_msec) +{ + if (ep->state & (FC_EX_RST_CLEANUP | FC_EX_DONE)) + return; + + FC_DEBUG_EXCH("Exchange (%4x) timed out, notifying the upper layer\n", + ep->xid); + if (schedule_delayed_work(&ep->timeout_work, + msecs_to_jiffies(timer_msec))) + fc_exch_hold(ep); /* hold for timer */ +} + +/* + * Set timer for an exchange. + * The time is a minimum delay in milliseconds until the timer fires. + * Used for upper level protocols to time out the exchange. + * The timer is cancelled when it fires or when the exchange completes. + * Returns non-zero if a timer couldn't be allocated. + */ +static void fc_exch_timer_set(struct fc_exch *ep, unsigned int timer_msec) +{ + spin_lock_bh(&ep->ex_lock); + fc_exch_timer_set_locked(ep, timer_msec); + spin_unlock_bh(&ep->ex_lock); +} + +int fc_seq_exch_abort(const struct fc_seq *req_sp, unsigned int timer_msec) +{ + struct fc_seq *sp; + struct fc_exch *ep; + struct fc_frame *fp; + int error; + + ep = fc_seq_exch(req_sp); + + spin_lock_bh(&ep->ex_lock); + if (ep->esb_stat & (ESB_ST_COMPLETE | ESB_ST_ABNORMAL) || + ep->state & (FC_EX_DONE | FC_EX_RST_CLEANUP)) { + spin_unlock_bh(&ep->ex_lock); + return -ENXIO; + } + + /* + * Send the abort on a new sequence if possible. + */ + sp = fc_seq_start_next_locked(&ep->seq); + if (!sp) { + spin_unlock_bh(&ep->ex_lock); + return -ENOMEM; + } + + ep->esb_stat |= ESB_ST_SEQ_INIT | ESB_ST_ABNORMAL; + if (timer_msec) + fc_exch_timer_set_locked(ep, timer_msec); + spin_unlock_bh(&ep->ex_lock); + + /* + * If not logged into the fabric, don't send ABTS but leave + * sequence active until next timeout. + */ + if (!ep->sid) + return 0; + + /* + * Send an abort for the sequence that timed out. + */ + fp = fc_frame_alloc(ep->lp, 0); + if (fp) { + fc_fill_fc_hdr(fp, FC_RCTL_BA_ABTS, ep->did, ep->sid, + FC_TYPE_BLS, FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0); + error = fc_seq_send(ep->lp, sp, fp); + } else + error = -ENOBUFS; + return error; +} +EXPORT_SYMBOL(fc_seq_exch_abort); + +/* + * Exchange timeout - handle exchange timer expiration. + * The timer will have been cancelled before this is called. + */ +static void fc_exch_timeout(struct work_struct *work) +{ + struct fc_exch *ep = container_of(work, struct fc_exch, + timeout_work.work); + struct fc_seq *sp = &ep->seq; + void (*resp)(struct fc_seq *, struct fc_frame *fp, void *arg); + void *arg; + u32 e_stat; + int rc = 1; + + spin_lock_bh(&ep->ex_lock); + if (ep->state & (FC_EX_RST_CLEANUP | FC_EX_DONE)) + goto unlock; + + e_stat = ep->esb_stat; + if (e_stat & ESB_ST_COMPLETE) { + ep->esb_stat = e_stat & ~ESB_ST_REC_QUAL; + if (e_stat & ESB_ST_REC_QUAL) + fc_exch_rrq(ep); + spin_unlock_bh(&ep->ex_lock); + goto done; + } else { + resp = ep->resp; + arg = ep->arg; + ep->resp = NULL; + if (e_stat & ESB_ST_ABNORMAL) + rc = fc_exch_done_locked(ep); + spin_unlock_bh(&ep->ex_lock); + if (!rc) + fc_exch_mgr_delete_ep(ep); + if (resp) + resp(sp, ERR_PTR(-FC_EX_TIMEOUT), arg); + fc_seq_exch_abort(sp, 2 * ep->r_a_tov); + goto done; + } +unlock: + spin_unlock_bh(&ep->ex_lock); +done: + /* + * This release matches the hold taken when the timer was set. + */ + fc_exch_release(ep); +} + +/* + * Allocate a sequence. + * + * We don't support multiple originated sequences on the same exchange. + * By implication, any previously originated sequence on this exchange + * is complete, and we reallocate the same sequence. + */ +static struct fc_seq *fc_seq_alloc(struct fc_exch *ep, u8 seq_id) +{ + struct fc_seq *sp; + + sp = &ep->seq; + sp->ssb_stat = 0; + sp->cnt = 0; + sp->id = seq_id; + return sp; +} + +/* + * fc_em_alloc_xid - returns an xid based on request type + * @lp : ptr to associated lport + * @fp : ptr to the assocated frame + * + * check the associated fc_fsp_pkt to get scsi command type and + * command direction to decide from which range this exch id + * will be allocated from. + * + * Returns : 0 or an valid xid + */ +static u16 fc_em_alloc_xid(struct fc_exch_mgr *mp, const struct fc_frame *fp) +{ + u16 xid, min, max; + u16 *plast; + struct fc_exch *ep = NULL; + + if (mp->max_read) { + if (fc_frame_is_read(fp)) { + min = mp->min_xid; + max = mp->max_read; + plast = &mp->last_read; + } else { + min = mp->max_read + 1; + max = mp->max_xid; + plast = &mp->last_xid; + } + } else { + min = mp->min_xid; + max = mp->max_xid; + plast = &mp->last_xid; + } + xid = *plast; + do { + xid = (xid == max) ? min : xid + 1; + ep = mp->exches[xid - mp->min_xid]; + } while ((ep != NULL) && (xid != *plast)); + + if (unlikely(ep)) + xid = 0; + else + *plast = xid; + + return xid; +} + +/* + * fc_exch_alloc - allocate an exchange. + * @mp : ptr to the exchange manager + * @xid: input xid + * + * if xid is supplied zero then assign next free exchange ID + * from exchange manager, otherwise use supplied xid. + * Returns with exch lock held. + */ +struct fc_exch *fc_exch_alloc(struct fc_exch_mgr *mp, + struct fc_frame *fp, u16 xid) +{ + struct fc_exch *ep; + + /* allocate memory for exchange */ + ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC); + if (!ep) { + atomic_inc(&mp->stats.no_free_exch); + goto out; + } + memset(ep, 0, sizeof(*ep)); + + spin_lock_bh(&mp->em_lock); + /* alloc xid if input xid 0 */ + if (!xid) { + /* alloc a new xid */ + xid = fc_em_alloc_xid(mp, fp); + if (!xid) { + printk(KERN_ERR "fc_em_alloc_xid() failed\n"); + goto err; + } + } + + fc_exch_hold(ep); /* hold for exch in mp */ + spin_lock_init(&ep->ex_lock); + /* + * Hold exch lock for caller to prevent fc_exch_reset() + * from releasing exch while fc_exch_alloc() caller is + * still working on exch. + */ + spin_lock_bh(&ep->ex_lock); + + mp->exches[xid - mp->min_xid] = ep; + list_add_tail(&ep->ex_list, &mp->ex_list); + fc_seq_alloc(ep, ep->seq_id++); + mp->total_exches++; + spin_unlock_bh(&mp->em_lock); + + /* + * update exchange + */ + ep->oxid = ep->xid = xid; + ep->em = mp; + ep->lp = mp->lp; + ep->f_ctl = FC_FC_FIRST_SEQ; /* next seq is first seq */ + ep->rxid = FC_XID_UNKNOWN; + ep->class = mp->class; + INIT_DELAYED_WORK(&ep->timeout_work, fc_exch_timeout); +out: + return ep; +err: + spin_unlock_bh(&mp->em_lock); + atomic_inc(&mp->stats.no_free_exch_xid); + mempool_free(ep, mp->ep_pool); + return NULL; +} +EXPORT_SYMBOL(fc_exch_alloc); + +/* + * Lookup and hold an exchange. + */ +static struct fc_exch *fc_exch_find(struct fc_exch_mgr *mp, u16 xid) +{ + struct fc_exch *ep = NULL; + + if ((xid >= mp->min_xid) && (xid <= mp->max_xid)) { + spin_lock_bh(&mp->em_lock); + ep = mp->exches[xid - mp->min_xid]; + if (ep) { + fc_exch_hold(ep); + WARN_ON(ep->xid != xid); + } + spin_unlock_bh(&mp->em_lock); + } + return ep; +} + +void fc_exch_done(struct fc_seq *sp) +{ + struct fc_exch *ep = fc_seq_exch(sp); + int rc; + + spin_lock_bh(&ep->ex_lock); + rc = fc_exch_done_locked(ep); + spin_unlock_bh(&ep->ex_lock); + if (!rc) + fc_exch_mgr_delete_ep(ep); +} +EXPORT_SYMBOL(fc_exch_done); + +/* + * Allocate a new exchange as responder. + * Sets the responder ID in the frame header. + */ +static struct fc_exch *fc_exch_resp(struct fc_exch_mgr *mp, struct fc_frame *fp) +{ + struct fc_exch *ep; + struct fc_frame_header *fh; + u16 rxid; + + ep = mp->lp->tt.exch_get(mp->lp, fp); + if (ep) { + ep->class = fc_frame_class(fp); + + /* + * Set EX_CTX indicating we're responding on this exchange. + */ + ep->f_ctl |= FC_FC_EX_CTX; /* we're responding */ + ep->f_ctl &= ~FC_FC_FIRST_SEQ; /* not new */ + fh = fc_frame_header_get(fp); + ep->sid = ntoh24(fh->fh_d_id); + ep->did = ntoh24(fh->fh_s_id); + ep->oid = ep->did; + + /* + * Allocated exchange has placed the XID in the + * originator field. Move it to the responder field, + * and set the originator XID from the frame. + */ + ep->rxid = ep->xid; + ep->oxid = ntohs(fh->fh_ox_id); + ep->esb_stat |= ESB_ST_RESP | ESB_ST_SEQ_INIT; + if ((ntoh24(fh->fh_f_ctl) & FC_FC_SEQ_INIT) == 0) + ep->esb_stat &= ~ESB_ST_SEQ_INIT; + + /* + * Set the responder ID in the frame header. + * The old one should've been 0xffff. + * If it isn't, don't assign one. + * Incoming basic link service frames may specify + * a referenced RX_ID. + */ + if (fh->fh_type != FC_TYPE_BLS) { + rxid = ntohs(fh->fh_rx_id); + WARN_ON(rxid != FC_XID_UNKNOWN); + fh->fh_rx_id = htons(ep->rxid); + } + fc_exch_hold(ep); /* hold for caller */ + spin_unlock_bh(&ep->ex_lock); /* lock from exch_get */ + } + return ep; +} + +/* + * Find a sequence for receive where the other end is originating the sequence. + * If fc_pf_rjt_reason is FC_RJT_NONE then this function will have a hold + * on the ep that should be released by the caller. + */ +static enum fc_pf_rjt_reason +fc_seq_lookup_recip(struct fc_exch_mgr *mp, struct fc_frame *fp) +{ + struct fc_frame_header *fh = fc_frame_header_get(fp); + struct fc_exch *ep = NULL; + struct fc_seq *sp = NULL; + enum fc_pf_rjt_reason reject = FC_RJT_NONE; + u32 f_ctl; + u16 xid; + + f_ctl = ntoh24(fh->fh_f_ctl); + WARN_ON((f_ctl & FC_FC_SEQ_CTX) != 0); + + /* + * Lookup or create the exchange if we will be creating the sequence. + */ + if (f_ctl & FC_FC_EX_CTX) { + xid = ntohs(fh->fh_ox_id); /* we originated exch */ + ep = fc_exch_find(mp, xid); + if (!ep) { + atomic_inc(&mp->stats.xid_not_found); + reject = FC_RJT_OX_ID; + goto out; + } + if (ep->rxid == FC_XID_UNKNOWN) + ep->rxid = ntohs(fh->fh_rx_id); + else if (ep->rxid != ntohs(fh->fh_rx_id)) { + reject = FC_RJT_OX_ID; + goto rel; + } + } else { + xid = ntohs(fh->fh_rx_id); /* we are the responder */ + + /* + * Special case for MDS issuing an ELS TEST with a + * bad rxid of 0. + * XXX take this out once we do the proper reject. + */ + if (xid == 0 && fh->fh_r_ctl == FC_RCTL_ELS_REQ && + fc_frame_payload_op(fp) == ELS_TEST) { + fh->fh_rx_id = htons(FC_XID_UNKNOWN); + xid = FC_XID_UNKNOWN; + } + + /* + * new sequence - find the exchange + */ + ep = fc_exch_find(mp, xid); + if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) { + if (ep) { + atomic_inc(&mp->stats.xid_busy); + reject = FC_RJT_RX_ID; + goto rel; + } + ep = fc_exch_resp(mp, fp); + if (!ep) { + reject = FC_RJT_EXCH_EST; /* XXX */ + goto out; + } + xid = ep->xid; /* get our XID */ + } else if (!ep) { + atomic_inc(&mp->stats.xid_not_found); + reject = FC_RJT_RX_ID; /* XID not found */ + goto out; + } + } + + /* + * At this point, we have the exchange held. + * Find or create the sequence. + */ + if (fc_sof_is_init(fr_sof(fp))) { + sp = fc_seq_start_next(&ep->seq); + if (!sp) { + reject = FC_RJT_SEQ_XS; /* exchange shortage */ + goto rel; + } + sp->id = fh->fh_seq_id; + sp->ssb_stat |= SSB_ST_RESP; + } else { + sp = &ep->seq; + if (sp->id != fh->fh_seq_id) { + atomic_inc(&mp->stats.seq_not_found); + reject = FC_RJT_SEQ_ID; /* sequence/exch should exist */ + goto rel; + } + } + WARN_ON(ep != fc_seq_exch(sp)); + + if (f_ctl & FC_FC_SEQ_INIT) + ep->esb_stat |= ESB_ST_SEQ_INIT; + + fr_seq(fp) = sp; +out: + return reject; +rel: + fc_exch_done(&ep->seq); + fc_exch_release(ep); /* hold from fc_exch_find/fc_exch_resp */ + return reject; +} + +/* + * Find the sequence for a frame being received. + * We originated the sequence, so it should be found. + * We may or may not have originated the exchange. + * Does not hold the sequence for the caller. + */ +static struct fc_seq *fc_seq_lookup_orig(struct fc_exch_mgr *mp, + struct fc_frame *fp) +{ + struct fc_frame_header *fh = fc_frame_header_get(fp); + struct fc_exch *ep; + struct fc_seq *sp = NULL; + u32 f_ctl; + u16 xid; + + f_ctl = ntoh24(fh->fh_f_ctl); + WARN_ON((f_ctl & FC_FC_SEQ_CTX) != FC_FC_SEQ_CTX); + xid = ntohs((f_ctl & FC_FC_EX_CTX) ? fh->fh_ox_id : fh->fh_rx_id); + ep = fc_exch_find(mp, xid); + if (!ep) + return NULL; + if (ep->seq.id == fh->fh_seq_id) { + /* + * Save the RX_ID if we didn't previously know it. + */ + sp = &ep->seq; + if ((f_ctl & FC_FC_EX_CTX) != 0 && + ep->rxid == FC_XID_UNKNOWN) { + ep->rxid = ntohs(fh->fh_rx_id); + } + } + fc_exch_release(ep); + return sp; +} + +/* + * Set addresses for an exchange. + * Note this must be done before the first sequence of the exchange is sent. + */ +static void fc_exch_set_addr(struct fc_exch *ep, + u32 orig_id, u32 resp_id) +{ + ep->oid = orig_id; + if (ep->esb_stat & ESB_ST_RESP) { + ep->sid = resp_id; + ep->did = orig_id; + } else { + ep->sid = orig_id; + ep->did = resp_id; + } +} + +static struct fc_seq *fc_seq_start_next_locked(struct fc_seq *sp) +{ + struct fc_exch *ep = fc_seq_exch(sp); + + sp = fc_seq_alloc(ep, ep->seq_id++); + FC_DEBUG_EXCH("exch %4x f_ctl %6x seq %2x\n", + ep->xid, ep->f_ctl, sp->id); + return sp; +} +/* + * Allocate a new sequence on the same exchange as the supplied sequence. + * This will never return NULL. + */ +struct fc_seq *fc_seq_start_next(struct fc_seq *sp) +{ + struct fc_exch *ep = fc_seq_exch(sp); + + spin_lock_bh(&ep->ex_lock); + WARN_ON((ep->esb_stat & ESB_ST_COMPLETE) != 0); + sp = fc_seq_start_next_locked(sp); + spin_unlock_bh(&ep->ex_lock); + + return sp; +} +EXPORT_SYMBOL(fc_seq_start_next); + +int fc_seq_send(struct fc_lport *lp, struct fc_seq *sp, struct fc_frame *fp) +{ + struct fc_exch *ep; + struct fc_frame_header *fh = fc_frame_header_get(fp); + int error; + u32 f_ctl; + + ep = fc_seq_exch(sp); + WARN_ON((ep->esb_stat & ESB_ST_SEQ_INIT) != ESB_ST_SEQ_INIT); + + f_ctl = ntoh24(fh->fh_f_ctl); + fc_exch_setup_hdr(ep, fp, f_ctl); + + /* + * update sequence count if this frame is carrying + * multiple FC frames when sequence offload is enabled + * by LLD. + */ + if (fr_max_payload(fp)) + sp->cnt += DIV_ROUND_UP((fr_len(fp) - sizeof(*fh)), + fr_max_payload(fp)); + else + sp->cnt++; + + /* + * Send the frame. + */ + error = lp->tt.frame_send(lp, fp); + + /* + * Update the exchange and sequence flags, + * assuming all frames for the sequence have been sent. + * We can only be called to send once for each sequence. + */ + spin_lock_bh(&ep->ex_lock); + ep->f_ctl = f_ctl & ~FC_FC_FIRST_SEQ; /* not first seq */ + if (f_ctl & (FC_FC_END_SEQ | FC_FC_SEQ_INIT)) + ep->esb_stat &= ~ESB_ST_SEQ_INIT; + spin_unlock_bh(&ep->ex_lock); + return error; +} +EXPORT_SYMBOL(fc_seq_send); + +void fc_seq_els_rsp_send(struct fc_seq *sp, enum fc_els_cmd els_cmd, + struct fc_seq_els_data *els_data) +{ + switch (els_cmd) { + case ELS_LS_RJT: + fc_seq_ls_rjt(sp, els_data->reason, els_data->explan); + break; + case ELS_LS_ACC: + fc_seq_ls_acc(sp); + break; + case ELS_RRQ: + fc_exch_els_rrq(sp, els_data->fp); + break; + case ELS_REC: + fc_exch_els_rec(sp, els_data->fp); + break; + default: + FC_DBG("Invalid ELS CMD:%x\n", els_cmd); + } +} +EXPORT_SYMBOL(fc_seq_els_rsp_send); + +/* + * Send a sequence, which is also the last sequence in the exchange. + */ +static void fc_seq_send_last(struct fc_seq *sp, struct fc_frame *fp, + enum fc_rctl rctl, enum fc_fh_type fh_type) +{ + u32 f_ctl; + struct fc_exch *ep = fc_seq_exch(sp); + + f_ctl = FC_FC_LAST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT; + f_ctl |= ep->f_ctl; + fc_fill_fc_hdr(fp, rctl, ep->did, ep->sid, fh_type, f_ctl, 0); + fc_seq_send(ep->lp, sp, fp); +} + +/* + * Send ACK_1 (or equiv.) indicating we received something. + * The frame we're acking is supplied. + */ +static void fc_seq_send_ack(struct fc_seq *sp, const struct fc_frame *rx_fp) +{ + struct fc_frame *fp; + struct fc_frame_header *rx_fh; + struct fc_frame_header *fh; + struct fc_exch *ep = fc_seq_exch(sp); + struct fc_lport *lp = ep->lp; + unsigned int f_ctl; + + /* + * Don't send ACKs for class 3. + */ + if (fc_sof_needs_ack(fr_sof(rx_fp))) { + fp = fc_frame_alloc(lp, 0); + if (!fp) + return; + + fh = fc_frame_header_get(fp); + fh->fh_r_ctl = FC_RCTL_ACK_1; + fh->fh_type = FC_TYPE_BLS; + + /* + * Form f_ctl by inverting EX_CTX and SEQ_CTX (bits 23, 22). + * Echo FIRST_SEQ, LAST_SEQ, END_SEQ, END_CONN, SEQ_INIT. + * Bits 9-8 are meaningful (retransmitted or unidirectional). + * Last ACK uses bits 7-6 (continue sequence), + * bits 5-4 are meaningful (what kind of ACK to use). + */ + rx_fh = fc_frame_header_get(rx_fp); + f_ctl = ntoh24(rx_fh->fh_f_ctl); + f_ctl &= FC_FC_EX_CTX | FC_FC_SEQ_CTX | + FC_FC_FIRST_SEQ | FC_FC_LAST_SEQ | + FC_FC_END_SEQ | FC_FC_END_CONN | FC_FC_SEQ_INIT | + FC_FC_RETX_SEQ | FC_FC_UNI_TX; + f_ctl ^= FC_FC_EX_CTX | FC_FC_SEQ_CTX; + hton24(fh->fh_f_ctl, f_ctl); + + fc_exch_setup_hdr(ep, fp, f_ctl); + fh->fh_seq_id = rx_fh->fh_seq_id; + fh->fh_seq_cnt = rx_fh->fh_seq_cnt; + fh->fh_parm_offset = htonl(1); /* ack single frame */ + + fr_sof(fp) = fr_sof(rx_fp); + if (f_ctl & FC_FC_END_SEQ) + fr_eof(fp) = FC_EOF_T; + else + fr_eof(fp) = FC_EOF_N; + + (void) lp->tt.frame_send(lp, fp); + } +} + +/* + * Send BLS Reject. + * This is for rejecting BA_ABTS only. + */ +static void +fc_exch_send_ba_rjt(struct fc_frame *rx_fp, enum fc_ba_rjt_reason reason, + enum fc_ba_rjt_explan explan) +{ + struct fc_frame *fp; + struct fc_frame_header *rx_fh; + struct fc_frame_header *fh; + struct fc_ba_rjt *rp; + struct fc_lport *lp; + unsigned int f_ctl; + + lp = fr_dev(rx_fp); + fp = fc_frame_alloc(lp, sizeof(*rp)); + if (!fp) + return; + fh = fc_frame_header_get(fp); + rx_fh = fc_frame_header_get(rx_fp); + + memset(fh, 0, sizeof(*fh) + sizeof(*rp)); + + rp = fc_frame_payload_get(fp, sizeof(*rp)); + rp->br_reason = reason; + rp->br_explan = explan; + + /* + * seq_id, cs_ctl, df_ctl and param/offset are zero. + */ + memcpy(fh->fh_s_id, rx_fh->fh_d_id, 3); + memcpy(fh->fh_d_id, rx_fh->fh_s_id, 3); + fh->fh_ox_id = rx_fh->fh_rx_id; + fh->fh_rx_id = rx_fh->fh_ox_id; + fh->fh_seq_cnt = rx_fh->fh_seq_cnt; + fh->fh_r_ctl = FC_RCTL_BA_RJT; + fh->fh_type = FC_TYPE_BLS; + + /* + * Form f_ctl by inverting EX_CTX and SEQ_CTX (bits 23, 22). + * Echo FIRST_SEQ, LAST_SEQ, END_SEQ, END_CONN, SEQ_INIT. + * Bits 9-8 are meaningful (retransmitted or unidirectional). + * Last ACK uses bits 7-6 (continue sequence), + * bits 5-4 are meaningful (what kind of ACK to use). + * Always set LAST_SEQ, END_SEQ. + */ + f_ctl = ntoh24(rx_fh->fh_f_ctl); + f_ctl &= FC_FC_EX_CTX | FC_FC_SEQ_CTX | + FC_FC_END_CONN | FC_FC_SEQ_INIT | + FC_FC_RETX_SEQ | FC_FC_UNI_TX; + f_ctl ^= FC_FC_EX_CTX | FC_FC_SEQ_CTX; + f_ctl |= FC_FC_LAST_SEQ | FC_FC_END_SEQ; + f_ctl &= ~FC_FC_FIRST_SEQ; + hton24(fh->fh_f_ctl, f_ctl); + + fr_sof(fp) = fc_sof_class(fr_sof(rx_fp)); + fr_eof(fp) = FC_EOF_T; + if (fc_sof_needs_ack(fr_sof(fp))) + fr_eof(fp) = FC_EOF_N; + + (void) lp->tt.frame_send(lp, fp); +} + +/* + * Handle an incoming ABTS. This would be for target mode usually, + * but could be due to lost FCP transfer ready, confirm or RRQ. + * We always handle this as an exchange abort, ignoring the parameter. + */ +static void fc_exch_recv_abts(struct fc_exch *ep, struct fc_frame *rx_fp) +{ + struct fc_frame *fp; + struct fc_ba_acc *ap; + struct fc_frame_header *fh; + struct fc_seq *sp; + + if (!ep) + goto reject; + spin_lock_bh(&ep->ex_lock); + if (ep->esb_stat & ESB_ST_COMPLETE) { + spin_unlock_bh(&ep->ex_lock); + goto reject; + } + if (!(ep->esb_stat & ESB_ST_REC_QUAL)) + fc_exch_hold(ep); /* hold for REC_QUAL */ + ep->esb_stat |= ESB_ST_ABNORMAL | ESB_ST_REC_QUAL; + fc_exch_timer_set_locked(ep, ep->r_a_tov); + + fp = fc_frame_alloc(ep->lp, sizeof(*ap)); + if (!fp) { + spin_unlock_bh(&ep->ex_lock); + goto free; + } + fh = fc_frame_header_get(fp); + ap = fc_frame_payload_get(fp, sizeof(*ap)); + memset(ap, 0, sizeof(*ap)); + sp = &ep->seq; + ap->ba_high_seq_cnt = htons(0xffff); + if (sp->ssb_stat & SSB_ST_RESP) { + ap->ba_seq_id = sp->id; + ap->ba_seq_id_val = FC_BA_SEQ_ID_VAL; + ap->ba_high_seq_cnt = fh->fh_seq_cnt; + ap->ba_low_seq_cnt = htons(sp->cnt); + } + sp = fc_seq_start_next(sp); + spin_unlock_bh(&ep->ex_lock); + fc_seq_send_last(sp, fp, FC_RCTL_BA_ACC, FC_TYPE_BLS); + fc_frame_free(rx_fp); + return; + +reject: + fc_exch_send_ba_rjt(rx_fp, FC_BA_RJT_UNABLE, FC_BA_RJT_INV_XID); +free: + fc_frame_free(rx_fp); +} + +/* + * Handle receive where the other end is originating the sequence. + */ +static void fc_exch_recv_req(struct fc_lport *lp, struct fc_exch_mgr *mp, + struct fc_frame *fp) +{ + struct fc_frame_header *fh = fc_frame_header_get(fp); + struct fc_seq *sp = NULL; + struct fc_exch *ep = NULL; + enum fc_sof sof; + enum fc_eof eof; + u32 f_ctl; + enum fc_pf_rjt_reason reject; + + fr_seq(fp) = NULL; + reject = fc_seq_lookup_recip(mp, fp); + if (reject == FC_RJT_NONE) { + sp = fr_seq(fp); /* sequence will be held */ + ep = fc_seq_exch(sp); + sof = fr_sof(fp); + eof = fr_eof(fp); + f_ctl = ntoh24(fh->fh_f_ctl); + fc_seq_send_ack(sp, fp); + + /* + * Call the receive function. + * + * The receive function may allocate a new sequence + * over the old one, so we shouldn't change the + * sequence after this. + * + * The frame will be freed by the receive function. + * If new exch resp handler is valid then call that + * first. + */ + if (ep->resp) + ep->resp(sp, fp, ep->arg); + else + lp->tt.lport_recv(lp, sp, fp); + fc_exch_release(ep); /* release from lookup */ + } else { + FC_DEBUG_EXCH("exch/seq lookup failed: reject %x\n", reject); + fc_frame_free(fp); + } +} + +/* + * Handle receive where the other end is originating the sequence in + * response to our exchange. + */ +static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp) +{ + struct fc_frame_header *fh = fc_frame_header_get(fp); + struct fc_seq *sp; + struct fc_exch *ep; + enum fc_sof sof; + u32 f_ctl; + void (*resp)(struct fc_seq *, struct fc_frame *fp, void *arg); + void *ex_resp_arg; + int rc; + + ep = fc_exch_find(mp, ntohs(fh->fh_ox_id)); + if (!ep) { + atomic_inc(&mp->stats.xid_not_found); + goto out; + } + if (ep->rxid == FC_XID_UNKNOWN) + ep->rxid = ntohs(fh->fh_rx_id); + if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) { + atomic_inc(&mp->stats.xid_not_found); + goto rel; + } + if (ep->did != ntoh24(fh->fh_s_id) && + ep->did != FC_FID_FLOGI) { + atomic_inc(&mp->stats.xid_not_found); + goto rel; + } + sof = fr_sof(fp); + if (fc_sof_is_init(sof)) { + sp = fc_seq_start_next(&ep->seq); + sp->id = fh->fh_seq_id; + sp->ssb_stat |= SSB_ST_RESP; + } else { + sp = &ep->seq; + if (sp->id != fh->fh_seq_id) { + atomic_inc(&mp->stats.seq_not_found); + goto rel; + } + } + f_ctl = ntoh24(fh->fh_f_ctl); + fr_seq(fp) = sp; + if (f_ctl & FC_FC_SEQ_INIT) + ep->esb_stat |= ESB_ST_SEQ_INIT; + + if (fc_sof_needs_ack(sof)) + fc_seq_send_ack(sp, fp); + resp = ep->resp; + ex_resp_arg = ep->arg; + + if (fh->fh_type != FC_TYPE_FCP && fr_eof(fp) == FC_EOF_T && + (f_ctl & (FC_FC_LAST_SEQ | FC_FC_END_SEQ)) == + (FC_FC_LAST_SEQ | FC_FC_END_SEQ)) { + spin_lock_bh(&ep->ex_lock); + rc = fc_exch_done_locked(ep); + WARN_ON(fc_seq_exch(sp) != ep); + spin_unlock_bh(&ep->ex_lock); + if (!rc) + fc_exch_mgr_delete_ep(ep); + } + + /* + * Call the receive function. + * The sequence is held (has a refcnt) for us, + * but not for the receive function. + * + * The receive function may allocate a new sequence + * over the old one, so we shouldn't change the + * sequence after this. + * + * The frame will be freed by the receive function. + * If new exch resp handler is valid then call that + * first. + */ + if (resp) + resp(sp, fp, ex_resp_arg); + else + fc_frame_free(fp); + fc_exch_release(ep); + return; +rel: + fc_exch_release(ep); +out: + fc_frame_free(fp); +} + +/* + * Handle receive for a sequence where other end is responding to our sequence. + */ +static void fc_exch_recv_resp(struct fc_exch_mgr *mp, struct fc_frame *fp) +{ + struct fc_seq *sp; + + sp = fc_seq_lookup_orig(mp, fp); /* doesn't hold sequence */ + if (!sp) { + atomic_inc(&mp->stats.xid_not_found); + FC_DEBUG_EXCH("seq lookup failed\n"); + } else { + atomic_inc(&mp->stats.non_bls_resp); + FC_DEBUG_EXCH("non-BLS response to sequence"); + } + fc_frame_free(fp); +} + +/* + * Handle the response to an ABTS for exchange or sequence. + * This can be BA_ACC or BA_RJT. + */ +static void fc_exch_abts_resp(struct fc_exch *ep, struct fc_frame *fp) +{ + void (*resp)(struct fc_seq *, struct fc_frame *fp, void *arg); + void *ex_resp_arg; + struct fc_frame_header *fh; + struct fc_ba_acc *ap; + struct fc_seq *sp; + u16 low; + u16 high; + int rc = 1, has_rec = 0; + + fh = fc_frame_header_get(fp); + FC_DEBUG_EXCH("exch: BLS rctl %x - %s\n", + fh->fh_r_ctl, fc_exch_rctl_name(fh->fh_r_ctl)); + + if (cancel_delayed_work_sync(&ep->timeout_work)) + fc_exch_release(ep); /* release from pending timer hold */ + + spin_lock_bh(&ep->ex_lock); + switch (fh->fh_r_ctl) { + case FC_RCTL_BA_ACC: + ap = fc_frame_payload_get(fp, sizeof(*ap)); + if (!ap) + break; + + /* + * Decide whether to establish a Recovery Qualifier. + * We do this if there is a non-empty SEQ_CNT range and + * SEQ_ID is the same as the one we aborted. + */ + low = ntohs(ap->ba_low_seq_cnt); + high = ntohs(ap->ba_high_seq_cnt); + if ((ep->esb_stat & ESB_ST_REC_QUAL) == 0 && + (ap->ba_seq_id_val != FC_BA_SEQ_ID_VAL || + ap->ba_seq_id == ep->seq_id) && low != high) { + ep->esb_stat |= ESB_ST_REC_QUAL; + fc_exch_hold(ep); /* hold for recovery qualifier */ + has_rec = 1; + } + break; + case FC_RCTL_BA_RJT: + break; + default: + break; + } + + resp = ep->resp; + ex_resp_arg = ep->arg; + + /* do we need to do some other checks here. Can we reuse more of + * fc_exch_recv_seq_resp + */ + sp = &ep->seq; + /* + * do we want to check END_SEQ as well as LAST_SEQ here? + */ + if (ep->fh_type != FC_TYPE_FCP && + ntoh24(fh->fh_f_ctl) & FC_FC_LAST_SEQ) + rc = fc_exch_done_locked(ep); + spin_unlock_bh(&ep->ex_lock); + if (!rc) + fc_exch_mgr_delete_ep(ep); + + if (resp) + resp(sp, fp, ex_resp_arg); + else + fc_frame_free(fp); + + if (has_rec) + fc_exch_timer_set(ep, ep->r_a_tov); + +} + +/* + * Receive BLS sequence. + * This is always a sequence initiated by the remote side. + * We may be either the originator or recipient of the exchange. + */ +static void fc_exch_recv_bls(struct fc_exch_mgr *mp, struct fc_frame *fp) +{ + struct fc_frame_header *fh; + struct fc_exch *ep; + u32 f_ctl; + + fh = fc_frame_header_get(fp); + f_ctl = ntoh24(fh->fh_f_ctl); + fr_seq(fp) = NULL; + + ep = fc_exch_find(mp, (f_ctl & FC_FC_EX_CTX) ? + ntohs(fh->fh_ox_id) : ntohs(fh->fh_rx_id)); + if (ep && (f_ctl & FC_FC_SEQ_INIT)) { + spin_lock_bh(&ep->ex_lock); + ep->esb_stat |= ESB_ST_SEQ_INIT; + spin_unlock_bh(&ep->ex_lock); + } + if (f_ctl & FC_FC_SEQ_CTX) { + /* + * A response to a sequence we initiated. + * This should only be ACKs for class 2 or F. + */ + switch (fh->fh_r_ctl) { + case FC_RCTL_ACK_1: + case FC_RCTL_ACK_0: + break; + default: + FC_DEBUG_EXCH("BLS rctl %x - %s received", + fh->fh_r_ctl, + fc_exch_rctl_name(fh->fh_r_ctl)); + break; + } + fc_frame_free(fp); + } else { + switch (fh->fh_r_ctl) { + case FC_RCTL_BA_RJT: + case FC_RCTL_BA_ACC: + if (ep) + fc_exch_abts_resp(ep, fp); + else + fc_frame_free(fp); + break; + case FC_RCTL_BA_ABTS: + fc_exch_recv_abts(ep, fp); + break; + default: /* ignore junk */ + fc_frame_free(fp); + break; + } + } + if (ep) + fc_exch_release(ep); /* release hold taken by fc_exch_find */ +} + +/* + * Accept sequence with LS_ACC. + * If this fails due to allocation or transmit congestion, assume the + * originator will repeat the sequence. + */ +static void fc_seq_ls_acc(struct fc_seq *req_sp) +{ + struct fc_seq *sp; + struct fc_els_ls_acc *acc; + struct fc_frame *fp; + + sp = fc_seq_start_next(req_sp); + fp = fc_frame_alloc(fc_seq_exch(sp)->lp, sizeof(*acc)); + if (fp) { + acc = fc_frame_payload_get(fp, sizeof(*acc)); + memset(acc, 0, sizeof(*acc)); + acc->la_cmd = ELS_LS_ACC; + fc_seq_send_last(sp, fp, FC_RCTL_ELS_REP, FC_TYPE_ELS); + } +} + +/* + * Reject sequence with ELS LS_RJT. + * If this fails due to allocation or transmit congestion, assume the + * originator will repeat the sequence. + */ +static void fc_seq_ls_rjt(struct fc_seq *req_sp, enum fc_els_rjt_reason reason, + enum fc_els_rjt_explan explan) +{ + struct fc_seq *sp; + struct fc_els_ls_rjt *rjt; + struct fc_frame *fp; + + sp = fc_seq_start_next(req_sp); + fp = fc_frame_alloc(fc_seq_exch(sp)->lp, sizeof(*rjt)); + if (fp) { + rjt = fc_frame_payload_get(fp, sizeof(*rjt)); + memset(rjt, 0, sizeof(*rjt)); + rjt->er_cmd = ELS_LS_RJT; + rjt->er_reason = reason; + rjt->er_explan = explan; + fc_seq_send_last(sp, fp, FC_RCTL_ELS_REP, FC_TYPE_ELS); + } +} + +static void fc_exch_reset(struct fc_exch *ep) +{ + struct fc_seq *sp; + void (*resp)(struct fc_seq *, struct fc_frame *, void *); + void *arg; + int rc = 1; + + spin_lock_bh(&ep->ex_lock); + ep->state |= FC_EX_RST_CLEANUP; + /* + * we really want to call del_timer_sync, but cannot due + * to the lport calling with the lport lock held (some resp + * functions can also grab the lport lock which could cause + * a deadlock). + */ + if (cancel_delayed_work(&ep->timeout_work)) + atomic_dec(&ep->ex_refcnt); /* drop hold for timer */ + resp = ep->resp; + ep->resp = NULL; + if (ep->esb_stat & ESB_ST_REC_QUAL) + atomic_dec(&ep->ex_refcnt); /* drop hold for rec_qual */ + ep->esb_stat &= ~ESB_ST_REC_QUAL; + arg = ep->arg; + sp = &ep->seq; + rc = fc_exch_done_locked(ep); + spin_unlock_bh(&ep->ex_lock); + if (!rc) + fc_exch_mgr_delete_ep(ep); + + if (resp) + resp(sp, ERR_PTR(-FC_EX_CLOSED), arg); +} + +/* + * Reset an exchange manager, releasing all sequences and exchanges. + * If sid is non-zero, reset only exchanges we source from that FID. + * If did is non-zero, reset only exchanges destined to that FID. + */ +void fc_exch_mgr_reset(struct fc_exch_mgr *mp, u32 sid, u32 did) +{ + struct fc_exch *ep; + struct fc_exch *next; + + spin_lock_bh(&mp->em_lock); +restart: + list_for_each_entry_safe(ep, next, &mp->ex_list, ex_list) { + if ((sid == 0 || sid == ep->sid) && + (did == 0 || did == ep->did)) { + fc_exch_hold(ep); + spin_unlock_bh(&mp->em_lock); + + fc_exch_reset(ep); + + fc_exch_release(ep); + spin_lock_bh(&mp->em_lock); + + /* + * must restart loop incase while lock was down + * multiple eps were released. + */ + goto restart; + } + } + spin_unlock_bh(&mp->em_lock); +} +EXPORT_SYMBOL(fc_exch_mgr_reset); + +/* + * Handle incoming ELS REC - Read Exchange Concise. + * Note that the requesting port may be different than the S_ID in the request. + */ +static void fc_exch_els_rec(struct fc_seq *sp, struct fc_frame *rfp) +{ + struct fc_frame *fp; + struct fc_exch *ep; + struct fc_exch_mgr *em; + struct fc_els_rec *rp; + struct fc_els_rec_acc *acc; + enum fc_els_rjt_reason reason = ELS_RJT_LOGIC; + enum fc_els_rjt_explan explan; + u32 sid; + u16 rxid; + u16 oxid; + + rp = fc_frame_payload_get(rfp, sizeof(*rp)); + explan = ELS_EXPL_INV_LEN; + if (!rp) + goto reject; + sid = ntoh24(rp->rec_s_id); + rxid = ntohs(rp->rec_rx_id); + oxid = ntohs(rp->rec_ox_id); + + /* + * Currently it's hard to find the local S_ID from the exchange + * manager. This will eventually be fixed, but for now it's easier + * to lookup the subject exchange twice, once as if we were + * the initiator, and then again if we weren't. + */ + em = fc_seq_exch(sp)->em; + ep = fc_exch_find(em, oxid); + explan = ELS_EXPL_OXID_RXID; + if (ep && ep->oid == sid) { + if (ep->rxid != FC_XID_UNKNOWN && + rxid != FC_XID_UNKNOWN && + ep->rxid != rxid) + goto rel; + } else { + if (ep) + fc_exch_release(ep); + ep = NULL; + if (rxid != FC_XID_UNKNOWN) + ep = fc_exch_find(em, rxid); + if (!ep) + goto reject; + } + + fp = fc_frame_alloc(fc_seq_exch(sp)->lp, sizeof(*acc)); + if (!fp) { + fc_exch_done(sp); + goto out; + } + sp = fc_seq_start_next(sp); + acc = fc_frame_payload_get(fp, sizeof(*acc)); + memset(acc, 0, sizeof(*acc)); + acc->reca_cmd = ELS_LS_ACC; + acc->reca_ox_id = rp->rec_ox_id; + memcpy(acc->reca_ofid, rp->rec_s_id, 3); + acc->reca_rx_id = htons(ep->rxid); + if (ep->sid == ep->oid) + hton24(acc->reca_rfid, ep->did); + else + hton24(acc->reca_rfid, ep->sid); + acc->reca_fc4value = htonl(ep->seq.rec_data); + acc->reca_e_stat = htonl(ep->esb_stat & (ESB_ST_RESP | + ESB_ST_SEQ_INIT | + ESB_ST_COMPLETE)); + sp = fc_seq_start_next(sp); + fc_seq_send_last(sp, fp, FC_RCTL_ELS_REP, FC_TYPE_ELS); +out: + fc_exch_release(ep); + fc_frame_free(rfp); + return; + +rel: + fc_exch_release(ep); +reject: + fc_seq_ls_rjt(sp, reason, explan); + fc_frame_free(rfp); +} + +/* + * Handle response from RRQ. + * Not much to do here, really. + * Should report errors. + * + * TODO: fix error handler. + */ +static void fc_exch_rrq_resp(struct fc_seq *sp, struct fc_frame *fp, void *arg) +{ + struct fc_exch *aborted_ep = arg; + unsigned int op; + + if (IS_ERR(fp)) { + int err = PTR_ERR(fp); + + if (err == -FC_EX_CLOSED) + goto cleanup; + FC_DBG("Cannot process RRQ, because of frame error %d\n", err); + return; + } + + op = fc_frame_payload_op(fp); + fc_frame_free(fp); + + switch (op) { + case ELS_LS_RJT: + FC_DBG("LS_RJT for RRQ"); + /* fall through */ + case ELS_LS_ACC: + goto cleanup; + default: + FC_DBG("unexpected response op %x for RRQ", op); + return; + } + +cleanup: + fc_exch_done(&aborted_ep->seq); + /* drop hold for rec qual */ + fc_exch_release(aborted_ep); +} + +/* + * Send ELS RRQ - Reinstate Recovery Qualifier. + * This tells the remote port to stop blocking the use of + * the exchange and the seq_cnt range. + */ +static void fc_exch_rrq(struct fc_exch *ep) +{ + struct fc_lport *lp; + struct fc_els_rrq *rrq; + struct fc_frame *fp; + struct fc_seq *rrq_sp; + u32 did; + + lp = ep->lp; + + fp = fc_frame_alloc(lp, sizeof(*rrq)); + if (!fp) + return; + rrq = fc_frame_payload_get(fp, sizeof(*rrq)); + memset(rrq, 0, sizeof(*rrq)); + rrq->rrq_cmd = ELS_RRQ; + hton24(rrq->rrq_s_id, ep->sid); + rrq->rrq_ox_id = htons(ep->oxid); + rrq->rrq_rx_id = htons(ep->rxid); + + did = ep->did; + if (ep->esb_stat & ESB_ST_RESP) + did = ep->sid; + + fc_fill_fc_hdr(fp, FC_RCTL_ELS_REQ, did, + fc_host_port_id(lp->host), FC_TYPE_ELS, + FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0); + + rrq_sp = fc_exch_seq_send(lp, fp, fc_exch_rrq_resp, NULL, ep, + lp->e_d_tov); + if (!rrq_sp) { + ep->esb_stat |= ESB_ST_REC_QUAL; + fc_exch_timer_set_locked(ep, ep->r_a_tov); + return; + } +} + + +/* + * Handle incoming ELS RRQ - Reset Recovery Qualifier. + */ +static void fc_exch_els_rrq(struct fc_seq *sp, struct fc_frame *fp) +{ + struct fc_exch *ep; /* request or subject exchange */ + struct fc_els_rrq *rp; + u32 sid; + u16 xid; + enum fc_els_rjt_explan explan; + + rp = fc_frame_payload_get(fp, sizeof(*rp)); + explan = ELS_EXPL_INV_LEN; + if (!rp) + goto reject; + + /* + * lookup subject exchange. + */ + ep = fc_seq_exch(sp); + sid = ntoh24(rp->rrq_s_id); /* subject source */ + xid = ep->did == sid ? ntohs(rp->rrq_ox_id) : ntohs(rp->rrq_rx_id); + ep = fc_exch_find(ep->em, xid); + + explan = ELS_EXPL_OXID_RXID; + if (!ep) + goto reject; + spin_lock_bh(&ep->ex_lock); + if (ep->oxid != ntohs(rp->rrq_ox_id)) + goto unlock_reject; + if (ep->rxid != ntohs(rp->rrq_rx_id) && + ep->rxid != FC_XID_UNKNOWN) + goto unlock_reject; + explan = ELS_EXPL_SID; + if (ep->sid != sid) + goto unlock_reject; + + /* + * Clear Recovery Qualifier state, and cancel timer if complete. + */ + if (ep->esb_stat & ESB_ST_REC_QUAL) { + ep->esb_stat &= ~ESB_ST_REC_QUAL; + atomic_dec(&ep->ex_refcnt); /* drop hold for rec qual */ + } + if (ep->esb_stat & ESB_ST_COMPLETE) { + if (cancel_delayed_work(&ep->timeout_work)) + atomic_dec(&ep->ex_refcnt); /* drop timer hold */ + } + + spin_unlock_bh(&ep->ex_lock); + + /* + * Send LS_ACC. + */ + fc_seq_ls_acc(sp); + fc_frame_free(fp); + return; + +unlock_reject: + spin_unlock_bh(&ep->ex_lock); + fc_exch_release(ep); /* drop hold from fc_exch_find */ +reject: + fc_seq_ls_rjt(sp, ELS_RJT_LOGIC, explan); + fc_frame_free(fp); +} + +struct fc_exch_mgr *fc_exch_mgr_alloc(struct fc_lport *lp, + enum fc_class class, + u16 min_xid, u16 max_xid) +{ + struct fc_exch_mgr *mp; + size_t len; + + if (max_xid <= min_xid || min_xid == 0 || max_xid == FC_XID_UNKNOWN) { + FC_DBG("Invalid min_xid 0x:%x and max_xid 0x:%x\n", + min_xid, max_xid); + return NULL; + } + + /* + * Memory need for EM + */ +#define xid_ok(i, m1, m2) (((i) >= (m1)) && ((i) <= (m2))) + len = (max_xid - min_xid + 1) * (sizeof(struct fc_exch *)); + len += sizeof(struct fc_exch_mgr); + + mp = kzalloc(len, GFP_ATOMIC); + if (!mp) + return NULL; + + mp->class = class; + mp->total_exches = 0; + mp->exches = (struct fc_exch **)(mp + 1); + mp->lp = lp; + /* adjust em exch xid range for offload */ + mp->min_xid = min_xid; + mp->max_xid = max_xid; + mp->last_xid = min_xid - 1; + mp->max_read = 0; + mp->last_read = 0; + if (lp->lro_enabled && xid_ok(lp->lro_xid, min_xid, max_xid)) { + mp->max_read = lp->lro_xid; + mp->last_read = min_xid - 1; + mp->last_xid = mp->max_read; + } else { + /* disable lro if no xid control over read */ + lp->lro_enabled = 0; + } + + INIT_LIST_HEAD(&mp->ex_list); + spin_lock_init(&mp->em_lock); + + mp->ep_pool = mempool_create_slab_pool(2, fc_em_cachep); + if (!mp->ep_pool) + goto free_mp; + + return mp; + +free_mp: + kfree(mp); + return NULL; +} +EXPORT_SYMBOL(fc_exch_mgr_alloc); + +void fc_exch_mgr_free(struct fc_exch_mgr *mp) +{ + WARN_ON(!mp); + /* + * The total exch count must be zero + * before freeing exchange manager. + */ + WARN_ON(mp->total_exches != 0); + mempool_destroy(mp->ep_pool); + kfree(mp); +} +EXPORT_SYMBOL(fc_exch_mgr_free); + +struct fc_exch *fc_exch_get(struct fc_lport *lp, struct fc_frame *fp) +{ + if (!lp || !lp->emp) + return NULL; + + return fc_exch_alloc(lp->emp, fp, 0); +} +EXPORT_SYMBOL(fc_exch_get); + +struct fc_seq *fc_exch_seq_send(struct fc_lport *lp, + struct fc_frame *fp, + void (*resp)(struct fc_seq *, + struct fc_frame *fp, + void *arg), + void (*destructor)(struct fc_seq *, void *), + void *arg, u32 timer_msec) +{ + struct fc_exch *ep; + struct fc_seq *sp = NULL; + struct fc_frame_header *fh; + int rc = 1; + + ep = lp->tt.exch_get(lp, fp); + if (!ep) { + fc_frame_free(fp); + return NULL; + } + ep->esb_stat |= ESB_ST_SEQ_INIT; + fh = fc_frame_header_get(fp); + fc_exch_set_addr(ep, ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id)); + ep->resp = resp; + ep->destructor = destructor; + ep->arg = arg; + ep->r_a_tov = FC_DEF_R_A_TOV; + ep->lp = lp; + sp = &ep->seq; + + ep->fh_type = fh->fh_type; /* save for possbile timeout handling */ + ep->f_ctl = ntoh24(fh->fh_f_ctl); + fc_exch_setup_hdr(ep, fp, ep->f_ctl); + sp->cnt++; + + if (unlikely(lp->tt.frame_send(lp, fp))) + goto err; + + if (timer_msec) + fc_exch_timer_set_locked(ep, timer_msec); + ep->f_ctl &= ~FC_FC_FIRST_SEQ; /* not first seq */ + + if (ep->f_ctl & FC_FC_SEQ_INIT) + ep->esb_stat &= ~ESB_ST_SEQ_INIT; + spin_unlock_bh(&ep->ex_lock); + return sp; +err: + rc = fc_exch_done_locked(ep); + spin_unlock_bh(&ep->ex_lock); + if (!rc) + fc_exch_mgr_delete_ep(ep); + return NULL; +} +EXPORT_SYMBOL(fc_exch_seq_send); + +/* + * Receive a frame + */ +void fc_exch_recv(struct fc_lport *lp, struct fc_exch_mgr *mp, + struct fc_frame *fp) +{ + struct fc_frame_header *fh = fc_frame_header_get(fp); + u32 f_ctl; + + /* lport lock ? */ + if (!lp || !mp || (lp->state == LPORT_ST_NONE)) { + FC_DBG("fc_lport or EM is not allocated and configured"); + fc_frame_free(fp); + return; + } + + /* + * If frame is marked invalid, just drop it. + */ + f_ctl = ntoh24(fh->fh_f_ctl); + switch (fr_eof(fp)) { + case FC_EOF_T: + if (f_ctl & FC_FC_END_SEQ) + skb_trim(fp_skb(fp), fr_len(fp) - FC_FC_FILL(f_ctl)); + /* fall through */ + case FC_EOF_N: + if (fh->fh_type == FC_TYPE_BLS) + fc_exch_recv_bls(mp, fp); + else if ((f_ctl & (FC_FC_EX_CTX | FC_FC_SEQ_CTX)) == + FC_FC_EX_CTX) + fc_exch_recv_seq_resp(mp, fp); + else if (f_ctl & FC_FC_SEQ_CTX) + fc_exch_recv_resp(mp, fp); + else + fc_exch_recv_req(lp, mp, fp); + break; + default: + FC_DBG("dropping invalid frame (eof %x)", fr_eof(fp)); + fc_frame_free(fp); + break; + } +} +EXPORT_SYMBOL(fc_exch_recv); + +int fc_exch_init(struct fc_lport *lp) +{ + if (!lp->tt.exch_get) { + /* + * exch_put() should be NULL if + * exch_get() is NULL + */ + WARN_ON(lp->tt.exch_put); + lp->tt.exch_get = fc_exch_get; + } + + if (!lp->tt.seq_start_next) + lp->tt.seq_start_next = fc_seq_start_next; + + if (!lp->tt.exch_seq_send) + lp->tt.exch_seq_send = fc_exch_seq_send; + + if (!lp->tt.seq_send) + lp->tt.seq_send = fc_seq_send; + + if (!lp->tt.seq_els_rsp_send) + lp->tt.seq_els_rsp_send = fc_seq_els_rsp_send; + + if (!lp->tt.exch_done) + lp->tt.exch_done = fc_exch_done; + + if (!lp->tt.exch_mgr_reset) + lp->tt.exch_mgr_reset = fc_exch_mgr_reset; + + if (!lp->tt.seq_exch_abort) + lp->tt.seq_exch_abort = fc_seq_exch_abort; + + return 0; +} +EXPORT_SYMBOL(fc_exch_init); + +int fc_setup_exch_mgr(void) +{ + fc_em_cachep = kmem_cache_create("libfc_em", sizeof(struct fc_exch), + 0, SLAB_HWCACHE_ALIGN, NULL); + if (!fc_em_cachep) + return -ENOMEM; + return 0; +} + +void fc_destroy_exch_mgr(void) +{ + kmem_cache_destroy(fc_em_cachep); +} diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c new file mode 100644 index 0000000..404e63f --- /dev/null +++ b/drivers/scsi/libfc/fc_fcp.c @@ -0,0 +1,2131 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * Copyright(c) 2008 Red Hat, Inc. All rights reserved. + * Copyright(c) 2008 Mike Christie + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/spinlock.h> +#include <linux/scatterlist.h> +#include <linux/err.h> +#include <linux/crc32.h> + +#include <scsi/scsi_tcq.h> +#include <scsi/scsi.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_cmnd.h> + +#include <scsi/fc/fc_fc2.h> + +#include <scsi/libfc.h> +#include <scsi/fc_encode.h> + +MODULE_AUTHOR("Open-FCoE.org"); +MODULE_DESCRIPTION("libfc"); +MODULE_LICENSE("GPL"); + +static int fc_fcp_debug; + +#define FC_DEBUG_FCP(fmt...) \ + do { \ + if (fc_fcp_debug) \ + FC_DBG(fmt); \ + } while (0) + +static struct kmem_cache *scsi_pkt_cachep; + +/* SRB state definitions */ +#define FC_SRB_FREE 0 /* cmd is free */ +#define FC_SRB_CMD_SENT (1 << 0) /* cmd has been sent */ +#define FC_SRB_RCV_STATUS (1 << 1) /* response has arrived */ +#define FC_SRB_ABORT_PENDING (1 << 2) /* cmd abort sent to device */ +#define FC_SRB_ABORTED (1 << 3) /* abort acknowleged */ +#define FC_SRB_DISCONTIG (1 << 4) /* non-sequential data recvd */ +#define FC_SRB_COMPL (1 << 5) /* fc_io_compl has been run */ +#define FC_SRB_FCP_PROCESSING_TMO (1 << 6) /* timer function processing */ +#define FC_SRB_NOMEM (1 << 7) /* dropped to out of mem */ + +#define FC_SRB_READ (1 << 1) +#define FC_SRB_WRITE (1 << 0) + +/* + * The SCp.ptr should be tested and set under the host lock. NULL indicates + * that the command has been retruned to the scsi layer. + */ +#define CMD_SP(Cmnd) ((struct fc_fcp_pkt *)(Cmnd)->SCp.ptr) +#define CMD_ENTRY_STATUS(Cmnd) ((Cmnd)->SCp.have_data_in) +#define CMD_COMPL_STATUS(Cmnd) ((Cmnd)->SCp.this_residual) +#define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status) +#define CMD_RESID_LEN(Cmnd) ((Cmnd)->SCp.buffers_residual) + +struct fc_fcp_internal { + mempool_t *scsi_pkt_pool; + struct list_head scsi_pkt_queue; + u8 throttled; +}; + +#define fc_get_scsi_internal(x) ((struct fc_fcp_internal *)(x)->scsi_priv) + +/* + * function prototypes + * FC scsi I/O related functions + */ +static void fc_fcp_recv_data(struct fc_fcp_pkt *, struct fc_frame *); +static void fc_fcp_recv(struct fc_seq *, struct fc_frame *, void *); +static void fc_fcp_resp(struct fc_fcp_pkt *, struct fc_frame *); +static void fc_fcp_complete_locked(struct fc_fcp_pkt *); +static void fc_tm_done(struct fc_seq *, struct fc_frame *, void *); +static void fc_fcp_error(struct fc_fcp_pkt *fsp, struct fc_frame *fp); +static void fc_timeout_error(struct fc_fcp_pkt *); +static void fc_fcp_timeout(unsigned long data); +static void fc_fcp_rec(struct fc_fcp_pkt *); +static void fc_fcp_rec_error(struct fc_fcp_pkt *, struct fc_frame *); +static void fc_fcp_rec_resp(struct fc_seq *, struct fc_frame *, void *); +static void fc_io_compl(struct fc_fcp_pkt *); + +static void fc_fcp_srr(struct fc_fcp_pkt *, enum fc_rctl, u32); +static void fc_fcp_srr_resp(struct fc_seq *, struct fc_frame *, void *); +static void fc_fcp_srr_error(struct fc_fcp_pkt *, struct fc_frame *); + +/* + * command status codes + */ +#define FC_COMPLETE 0 +#define FC_CMD_ABORTED 1 +#define FC_CMD_RESET 2 +#define FC_CMD_PLOGO 3 +#define FC_SNS_RCV 4 +#define FC_TRANS_ERR 5 +#define FC_DATA_OVRRUN 6 +#define FC_DATA_UNDRUN 7 +#define FC_ERROR 8 +#define FC_HRD_ERROR 9 +#define FC_CMD_TIME_OUT 10 + +/* + * Error recovery timeout values. + */ +#define FC_SCSI_ER_TIMEOUT (10 * HZ) +#define FC_SCSI_TM_TOV (10 * HZ) +#define FC_SCSI_REC_TOV (2 * HZ) +#define FC_HOST_RESET_TIMEOUT (30 * HZ) + +#define FC_MAX_ERROR_CNT 5 +#define FC_MAX_RECOV_RETRY 3 + +#define FC_FCP_DFLT_QUEUE_DEPTH 32 + +/** + * fc_fcp_pkt_alloc - allocation routine for scsi_pkt packet + * @lp: fc lport struct + * @gfp: gfp flags for allocation + * + * This is used by upper layer scsi driver. + * Return Value : scsi_pkt structure or null on allocation failure. + * Context : call from process context. no locking required. + */ +static struct fc_fcp_pkt *fc_fcp_pkt_alloc(struct fc_lport *lp, gfp_t gfp) +{ + struct fc_fcp_internal *si = fc_get_scsi_internal(lp); + struct fc_fcp_pkt *fsp; + + fsp = mempool_alloc(si->scsi_pkt_pool, gfp); + if (fsp) { + memset(fsp, 0, sizeof(*fsp)); + fsp->lp = lp; + atomic_set(&fsp->ref_cnt, 1); + init_timer(&fsp->timer); + INIT_LIST_HEAD(&fsp->list); + spin_lock_init(&fsp->scsi_pkt_lock); + } + return fsp; +} + +/** + * fc_fcp_pkt_release - release hold on scsi_pkt packet + * @fsp: fcp packet struct + * + * This is used by upper layer scsi driver. + * Context : call from process and interrupt context. + * no locking required + */ +static void fc_fcp_pkt_release(struct fc_fcp_pkt *fsp) +{ + if (atomic_dec_and_test(&fsp->ref_cnt)) { + struct fc_fcp_internal *si = fc_get_scsi_internal(fsp->lp); + + mempool_free(fsp, si->scsi_pkt_pool); + } +} + +static void fc_fcp_pkt_hold(struct fc_fcp_pkt *fsp) +{ + atomic_inc(&fsp->ref_cnt); +} + +/** + * fc_fcp_pkt_destory - release hold on scsi_pkt packet + * + * @seq: exchange sequence + * @fsp: fcp packet struct + * + * Release hold on scsi_pkt packet set to keep scsi_pkt + * till EM layer exch resource is not freed. + * Context : called from from EM layer. + * no locking required + */ +static void fc_fcp_pkt_destroy(struct fc_seq *seq, void *fsp) +{ + fc_fcp_pkt_release(fsp); +} + +/** + * fc_fcp_lock_pkt - lock a packet and get a ref to it. + * @fsp: fcp packet + * + * We should only return error if we return a command to scsi-ml before + * getting a response. This can happen in cases where we send a abort, but + * do not wait for the response and the abort and command can be passing + * each other on the wire/network-layer. + * + * Note: this function locks the packet and gets a reference to allow + * callers to call the completion function while the lock is held and + * not have to worry about the packets refcount. + * + * TODO: Maybe we should just have callers grab/release the lock and + * have a function that they call to verify the fsp and grab a ref if + * needed. + */ +static inline int fc_fcp_lock_pkt(struct fc_fcp_pkt *fsp) +{ + spin_lock_bh(&fsp->scsi_pkt_lock); + if (fsp->state & FC_SRB_COMPL) { + spin_unlock_bh(&fsp->scsi_pkt_lock); + return -EPERM; + } + + fc_fcp_pkt_hold(fsp); + return 0; +} + +static inline void fc_fcp_unlock_pkt(struct fc_fcp_pkt *fsp) +{ + spin_unlock_bh(&fsp->scsi_pkt_lock); + fc_fcp_pkt_release(fsp); +} + +static void fc_fcp_timer_set(struct fc_fcp_pkt *fsp, unsigned long delay) +{ + if (!(fsp->state & FC_SRB_COMPL)) + mod_timer(&fsp->timer, jiffies + delay); +} + +static int fc_fcp_send_abort(struct fc_fcp_pkt *fsp) +{ + if (!fsp->seq_ptr) + return -EINVAL; + + fsp->state |= FC_SRB_ABORT_PENDING; + return fsp->lp->tt.seq_exch_abort(fsp->seq_ptr, 0); +} + +/* + * Retry command. + * An abort isn't needed. + */ +static void fc_fcp_retry_cmd(struct fc_fcp_pkt *fsp) +{ + if (fsp->seq_ptr) { + fsp->lp->tt.exch_done(fsp->seq_ptr); + fsp->seq_ptr = NULL; + } + + fsp->state &= ~FC_SRB_ABORT_PENDING; + fsp->io_status = SUGGEST_RETRY << 24; + fsp->status_code = FC_ERROR; + fc_fcp_complete_locked(fsp); +} + +/* + * Receive SCSI data from target. + * Called after receiving solicited data. + */ +static void fc_fcp_recv_data(struct fc_fcp_pkt *fsp, struct fc_frame *fp) +{ + struct scsi_cmnd *sc = fsp->cmd; + struct fc_lport *lp = fsp->lp; + struct fcoe_dev_stats *stats; + struct fc_frame_header *fh; + size_t start_offset; + size_t offset; + u32 crc; + u32 copy_len = 0; + size_t len; + void *buf; + struct scatterlist *sg; + size_t remaining; + + fh = fc_frame_header_get(fp); + offset = ntohl(fh->fh_parm_offset); + start_offset = offset; + len = fr_len(fp) - sizeof(*fh); + buf = fc_frame_payload_get(fp, 0); + + if (offset + len > fsp->data_len) { + /* + * this should never happen + */ + if ((fr_flags(fp) & FCPHF_CRC_UNCHECKED) && + fc_frame_crc_check(fp)) + goto crc_err; + FC_DEBUG_FCP("data received past end. len %zx offset %zx " + "data_len %x\n", len, offset, fsp->data_len); + fc_fcp_retry_cmd(fsp); + return; + } + if (offset != fsp->xfer_len) + fsp->state |= FC_SRB_DISCONTIG; + + crc = 0; + if (fr_flags(fp) & FCPHF_CRC_UNCHECKED) + crc = crc32(~0, (u8 *) fh, sizeof(*fh)); + + sg = scsi_sglist(sc); + remaining = len; + + while (remaining > 0 && sg) { + size_t off; + void *page_addr; + size_t sg_bytes; + + if (offset >= sg->length) { + offset -= sg->length; + sg = sg_next(sg); + continue; + } + sg_bytes = min(remaining, sg->length - offset); + + /* + * The scatterlist item may be bigger than PAGE_SIZE, + * but we are limited to mapping PAGE_SIZE at a time. + */ + off = offset + sg->offset; + sg_bytes = min(sg_bytes, (size_t) + (PAGE_SIZE - (off & ~PAGE_MASK))); + page_addr = kmap_atomic(sg_page(sg) + (off >> PAGE_SHIFT), + KM_SOFTIRQ0); + if (!page_addr) + break; /* XXX panic? */ + + if (fr_flags(fp) & FCPHF_CRC_UNCHECKED) + crc = crc32(crc, buf, sg_bytes); + memcpy((char *)page_addr + (off & ~PAGE_MASK), buf, + sg_bytes); + + kunmap_atomic(page_addr, KM_SOFTIRQ0); + buf += sg_bytes; + offset += sg_bytes; + remaining -= sg_bytes; + copy_len += sg_bytes; + } + + if (fr_flags(fp) & FCPHF_CRC_UNCHECKED) { + buf = fc_frame_payload_get(fp, 0); + if (len % 4) { + crc = crc32(crc, buf + len, 4 - (len % 4)); + len += 4 - (len % 4); + } + + if (~crc != le32_to_cpu(fr_crc(fp))) { +crc_err: + stats = lp->dev_stats[smp_processor_id()]; + stats->ErrorFrames++; + if (stats->InvalidCRCCount++ < 5) + FC_DBG("CRC error on data frame\n"); + /* + * Assume the frame is total garbage. + * We may have copied it over the good part + * of the buffer. + * If so, we need to retry the entire operation. + * Otherwise, ignore it. + */ + if (fsp->state & FC_SRB_DISCONTIG) + fc_fcp_retry_cmd(fsp); + return; + } + } + + if (fsp->xfer_contig_end == start_offset) + fsp->xfer_contig_end += copy_len; + fsp->xfer_len += copy_len; + + /* + * In the very rare event that this data arrived after the response + * and completes the transfer, call the completion handler. + */ + if (unlikely(fsp->state & FC_SRB_RCV_STATUS) && + fsp->xfer_len == fsp->data_len - fsp->scsi_resid) + fc_fcp_complete_locked(fsp); +} + +/* + * fc_fcp_send_data - Send SCSI data to target. + * @fsp: ptr to fc_fcp_pkt + * @sp: ptr to this sequence + * @offset: starting offset for this data request + * @seq_blen: the burst length for this data request + * + * Called after receiving a Transfer Ready data descriptor. + * if LLD is capable of seq offload then send down seq_blen + * size of data in single frame, otherwise send multiple FC + * frames of max FC frame payload supported by target port. + * + * Returns : 0 for success. + */ +static int fc_fcp_send_data(struct fc_fcp_pkt *fsp, struct fc_seq *seq, + size_t offset, size_t seq_blen) +{ + struct fc_exch *ep; + struct scsi_cmnd *sc; + struct scatterlist *sg; + struct fc_frame *fp = NULL; + struct fc_lport *lp = fsp->lp; + size_t remaining; + size_t t_blen; + size_t tlen; + size_t sg_bytes; + size_t frame_offset, fh_parm_offset; + int error; + void *data = NULL; + void *page_addr; + int using_sg = lp->sg_supp; + u32 f_ctl; + + WARN_ON(seq_blen <= 0); + if (unlikely(offset + seq_blen > fsp->data_len)) { + /* this should never happen */ + FC_DEBUG_FCP("xfer-ready past end. seq_blen %zx offset %zx\n", + seq_blen, offset); + fc_fcp_send_abort(fsp); + return 0; + } else if (offset != fsp->xfer_len) { + /* Out of Order Data Request - no problem, but unexpected. */ + FC_DEBUG_FCP("xfer-ready non-contiguous. " + "seq_blen %zx offset %zx\n", seq_blen, offset); + } + + /* + * if LLD is capable of seq_offload then set transport + * burst length (t_blen) to seq_blen, otherwise set t_blen + * to max FC frame payload previously set in fsp->max_payload. + */ + t_blen = lp->seq_offload ? seq_blen : fsp->max_payload; + WARN_ON(t_blen < FC_MIN_MAX_PAYLOAD); + if (t_blen > 512) + t_blen &= ~(512 - 1); /* round down to block size */ + WARN_ON(t_blen < FC_MIN_MAX_PAYLOAD); /* won't go below 256 */ + sc = fsp->cmd; + + remaining = seq_blen; + fh_parm_offset = frame_offset = offset; + tlen = 0; + seq = lp->tt.seq_start_next(seq); + f_ctl = FC_FC_REL_OFF; + WARN_ON(!seq); + + /* + * If a get_page()/put_page() will fail, don't use sg lists + * in the fc_frame structure. + * + * The put_page() may be long after the I/O has completed + * in the case of FCoE, since the network driver does it + * via free_skb(). See the test in free_pages_check(). + * + * Test this case with 'dd </dev/zero >/dev/st0 bs=64k'. + */ + if (using_sg) { + for (sg = scsi_sglist(sc); sg; sg = sg_next(sg)) { + if (page_count(sg_page(sg)) == 0 || + (sg_page(sg)->flags & (1 << PG_lru | + 1 << PG_private | + 1 << PG_locked | + 1 << PG_active | + 1 << PG_slab | + 1 << PG_swapcache | + 1 << PG_writeback | + 1 << PG_reserved | + 1 << PG_buddy))) { + using_sg = 0; + break; + } + } + } + sg = scsi_sglist(sc); + + while (remaining > 0 && sg) { + if (offset >= sg->length) { + offset -= sg->length; + sg = sg_next(sg); + continue; + } + if (!fp) { + tlen = min(t_blen, remaining); + + /* + * TODO. Temporary workaround. fc_seq_send() can't + * handle odd lengths in non-linear skbs. + * This will be the final fragment only. + */ + if (tlen % 4) + using_sg = 0; + if (using_sg) { + fp = _fc_frame_alloc(lp, 0); + if (!fp) + return -ENOMEM; + } else { + fp = fc_frame_alloc(lp, tlen); + if (!fp) + return -ENOMEM; + + data = (void *)(fr_hdr(fp)) + + sizeof(struct fc_frame_header); + } + fh_parm_offset = frame_offset; + fr_max_payload(fp) = fsp->max_payload; + } + sg_bytes = min(tlen, sg->length - offset); + if (using_sg) { + WARN_ON(skb_shinfo(fp_skb(fp))->nr_frags > + FC_FRAME_SG_LEN); + get_page(sg_page(sg)); + skb_fill_page_desc(fp_skb(fp), + skb_shinfo(fp_skb(fp))->nr_frags, + sg_page(sg), sg->offset + offset, + sg_bytes); + fp_skb(fp)->data_len += sg_bytes; + fr_len(fp) += sg_bytes; + fp_skb(fp)->truesize += PAGE_SIZE; + } else { + size_t off = offset + sg->offset; + + /* + * The scatterlist item may be bigger than PAGE_SIZE, + * but we must not cross pages inside the kmap. + */ + sg_bytes = min(sg_bytes, (size_t) (PAGE_SIZE - + (off & ~PAGE_MASK))); + page_addr = kmap_atomic(sg_page(sg) + + (off >> PAGE_SHIFT), + KM_SOFTIRQ0); + memcpy(data, (char *)page_addr + (off & ~PAGE_MASK), + sg_bytes); + kunmap_atomic(page_addr, KM_SOFTIRQ0); + data += sg_bytes; + } + offset += sg_bytes; + frame_offset += sg_bytes; + tlen -= sg_bytes; + remaining -= sg_bytes; + + if (tlen) + continue; + + /* + * Send sequence with transfer sequence initiative in case + * this is last FCP frame of the sequence. + */ + if (remaining == 0) + f_ctl |= FC_FC_SEQ_INIT | FC_FC_END_SEQ; + + ep = fc_seq_exch(seq); + fc_fill_fc_hdr(fp, FC_RCTL_DD_SOL_DATA, ep->did, ep->sid, + FC_TYPE_FCP, f_ctl, fh_parm_offset); + + /* + * send fragment using for a sequence. + */ + error = lp->tt.seq_send(lp, seq, fp); + if (error) { + WARN_ON(1); /* send error should be rare */ + fc_fcp_retry_cmd(fsp); + return 0; + } + fp = NULL; + } + fsp->xfer_len += seq_blen; /* premature count? */ + return 0; +} + +static void fc_fcp_abts_resp(struct fc_fcp_pkt *fsp, struct fc_frame *fp) +{ + int ba_done = 1; + struct fc_ba_rjt *brp; + struct fc_frame_header *fh; + + fh = fc_frame_header_get(fp); + switch (fh->fh_r_ctl) { + case FC_RCTL_BA_ACC: + break; + case FC_RCTL_BA_RJT: + brp = fc_frame_payload_get(fp, sizeof(*brp)); + if (brp && brp->br_reason == FC_BA_RJT_LOG_ERR) + break; + /* fall thru */ + default: + /* + * we will let the command timeout + * and scsi-ml recover in this case, + * therefore cleared the ba_done flag. + */ + ba_done = 0; + } + + if (ba_done) { + fsp->state |= FC_SRB_ABORTED; + fsp->state &= ~FC_SRB_ABORT_PENDING; + + if (fsp->wait_for_comp) + complete(&fsp->tm_done); + else + fc_fcp_complete_locked(fsp); + } +} + +/* + * fc_fcp_reduce_can_queue - drop can_queue + * @lp: lport to drop queueing for + * + * If we are getting memory allocation failures, then we may + * be trying to execute too many commands. We let the running + * commands complete or timeout, then try again with a reduced + * can_queue. Eventually we will hit the point where we run + * on all reserved structs. + */ +static void fc_fcp_reduce_can_queue(struct fc_lport *lp) +{ + struct fc_fcp_internal *si = fc_get_scsi_internal(lp); + unsigned long flags; + int can_queue; + + spin_lock_irqsave(lp->host->host_lock, flags); + if (si->throttled) + goto done; + si->throttled = 1; + + can_queue = lp->host->can_queue; + can_queue >>= 1; + if (!can_queue) + can_queue = 1; + lp->host->can_queue = can_queue; + shost_printk(KERN_ERR, lp->host, "Could not allocate frame.\n" + "Reducing can_queue to %d.\n", can_queue); +done: + spin_unlock_irqrestore(lp->host->host_lock, flags); +} + +/* + * exch mgr calls this routine to process scsi + * exchanges. + * + * Return : None + * Context : called from Soft IRQ context + * can not called holding list lock + */ +static void fc_fcp_recv(struct fc_seq *seq, struct fc_frame *fp, void *arg) +{ + struct fc_fcp_pkt *fsp = (struct fc_fcp_pkt *)arg; + struct fc_lport *lp; + struct fc_frame_header *fh; + struct fcp_txrdy *dd; + u8 r_ctl; + int rc = 0; + + if (IS_ERR(fp)) + goto errout; + + fh = fc_frame_header_get(fp); + r_ctl = fh->fh_r_ctl; + lp = fsp->lp; + + if (!(lp->state & LPORT_ST_READY)) + goto out; + if (fc_fcp_lock_pkt(fsp)) + goto out; + fsp->last_pkt_time = jiffies; + + if (fh->fh_type == FC_TYPE_BLS) { + fc_fcp_abts_resp(fsp, fp); + goto unlock; + } + + if (fsp->state & (FC_SRB_ABORTED | FC_SRB_ABORT_PENDING)) + goto unlock; + + if (r_ctl == FC_RCTL_DD_DATA_DESC) { + /* + * received XFER RDY from the target + * need to send data to the target + */ + WARN_ON(fr_flags(fp) & FCPHF_CRC_UNCHECKED); + dd = fc_frame_payload_get(fp, sizeof(*dd)); + WARN_ON(!dd); + + rc = fc_fcp_send_data(fsp, seq, + (size_t) ntohl(dd->ft_data_ro), + (size_t) ntohl(dd->ft_burst_len)); + if (!rc) + seq->rec_data = fsp->xfer_len; + else if (rc == -ENOMEM) + fsp->state |= FC_SRB_NOMEM; + } else if (r_ctl == FC_RCTL_DD_SOL_DATA) { + /* + * received a DATA frame + * next we will copy the data to the system buffer + */ + WARN_ON(fr_len(fp) < sizeof(*fh)); /* len may be 0 */ + fc_fcp_recv_data(fsp, fp); + seq->rec_data = fsp->xfer_contig_end; + } else if (r_ctl == FC_RCTL_DD_CMD_STATUS) { + WARN_ON(fr_flags(fp) & FCPHF_CRC_UNCHECKED); + + fc_fcp_resp(fsp, fp); + } else { + FC_DBG("unexpected frame. r_ctl %x\n", r_ctl); + } +unlock: + fc_fcp_unlock_pkt(fsp); +out: + fc_frame_free(fp); +errout: + if (IS_ERR(fp)) + fc_fcp_error(fsp, fp); + else if (rc == -ENOMEM) + fc_fcp_reduce_can_queue(lp); +} + +static void fc_fcp_resp(struct fc_fcp_pkt *fsp, struct fc_frame *fp) +{ + struct fc_frame_header *fh; + struct fcp_resp *fc_rp; + struct fcp_resp_ext *rp_ex; + struct fcp_resp_rsp_info *fc_rp_info; + u32 plen; + u32 expected_len; + u32 respl = 0; + u32 snsl = 0; + u8 flags = 0; + + plen = fr_len(fp); + fh = (struct fc_frame_header *)fr_hdr(fp); + if (unlikely(plen < sizeof(*fh) + sizeof(*fc_rp))) + goto len_err; + plen -= sizeof(*fh); + fc_rp = (struct fcp_resp *)(fh + 1); + fsp->cdb_status = fc_rp->fr_status; + flags = fc_rp->fr_flags; + fsp->scsi_comp_flags = flags; + expected_len = fsp->data_len; + + if (unlikely((flags & ~FCP_CONF_REQ) || fc_rp->fr_status)) { + rp_ex = (void *)(fc_rp + 1); + if (flags & (FCP_RSP_LEN_VAL | FCP_SNS_LEN_VAL)) { + if (plen < sizeof(*fc_rp) + sizeof(*rp_ex)) + goto len_err; + fc_rp_info = (struct fcp_resp_rsp_info *)(rp_ex + 1); + if (flags & FCP_RSP_LEN_VAL) { + respl = ntohl(rp_ex->fr_rsp_len); + if (respl != sizeof(*fc_rp_info)) + goto len_err; + if (fsp->wait_for_comp) { + /* Abuse cdb_status for rsp code */ + fsp->cdb_status = fc_rp_info->rsp_code; + complete(&fsp->tm_done); + /* + * tmfs will not have any scsi cmd so + * exit here + */ + return; + } else + goto err; + } + if (flags & FCP_SNS_LEN_VAL) { + snsl = ntohl(rp_ex->fr_sns_len); + if (snsl > SCSI_SENSE_BUFFERSIZE) + snsl = SCSI_SENSE_BUFFERSIZE; + memcpy(fsp->cmd->sense_buffer, + (char *)fc_rp_info + respl, snsl); + } + } + if (flags & (FCP_RESID_UNDER | FCP_RESID_OVER)) { + if (plen < sizeof(*fc_rp) + sizeof(rp_ex->fr_resid)) + goto len_err; + if (flags & FCP_RESID_UNDER) { + fsp->scsi_resid = ntohl(rp_ex->fr_resid); + /* + * The cmnd->underflow is the minimum number of + * bytes that must be transfered for this + * command. Provided a sense condition is not + * present, make sure the actual amount + * transferred is at least the underflow value + * or fail. + */ + if (!(flags & FCP_SNS_LEN_VAL) && + (fc_rp->fr_status == 0) && + (scsi_bufflen(fsp->cmd) - + fsp->scsi_resid) < fsp->cmd->underflow) + goto err; + expected_len -= fsp->scsi_resid; + } else { + fsp->status_code = FC_ERROR; + } + } + } + fsp->state |= FC_SRB_RCV_STATUS; + + /* + * Check for missing or extra data frames. + */ + if (unlikely(fsp->xfer_len != expected_len)) { + if (fsp->xfer_len < expected_len) { + /* + * Some data may be queued locally, + * Wait a at least one jiffy to see if it is delivered. + * If this expires without data, we may do SRR. + */ + fc_fcp_timer_set(fsp, 2); + return; + } + fsp->status_code = FC_DATA_OVRRUN; + FC_DBG("tgt %6x xfer len %zx greater than expected len %x. " + "data len %x\n", + fsp->rport->port_id, + fsp->xfer_len, expected_len, fsp->data_len); + } + fc_fcp_complete_locked(fsp); + return; + +len_err: + FC_DBG("short FCP response. flags 0x%x len %u respl %u snsl %u\n", + flags, fr_len(fp), respl, snsl); +err: + fsp->status_code = FC_ERROR; + fc_fcp_complete_locked(fsp); +} + +/** + * fc_fcp_complete_locked - complete processing of a fcp packet + * @fsp: fcp packet + * + * This function may sleep if a timer is pending. The packet lock must be + * held, and the host lock must not be held. + */ +static void fc_fcp_complete_locked(struct fc_fcp_pkt *fsp) +{ + struct fc_lport *lp = fsp->lp; + struct fc_seq *seq; + struct fc_exch *ep; + u32 f_ctl; + + if (fsp->state & FC_SRB_ABORT_PENDING) + return; + + if (fsp->state & FC_SRB_ABORTED) { + if (!fsp->status_code) + fsp->status_code = FC_CMD_ABORTED; + } else { + /* + * Test for transport underrun, independent of response + * underrun status. + */ + if (fsp->xfer_len < fsp->data_len && !fsp->io_status && + (!(fsp->scsi_comp_flags & FCP_RESID_UNDER) || + fsp->xfer_len < fsp->data_len - fsp->scsi_resid)) { + fsp->status_code = FC_DATA_UNDRUN; + fsp->io_status = SUGGEST_RETRY << 24; + } + } + + seq = fsp->seq_ptr; + if (seq) { + fsp->seq_ptr = NULL; + if (unlikely(fsp->scsi_comp_flags & FCP_CONF_REQ)) { + struct fc_frame *conf_frame; + struct fc_seq *csp; + + csp = lp->tt.seq_start_next(seq); + conf_frame = fc_frame_alloc(fsp->lp, 0); + if (conf_frame) { + f_ctl = FC_FC_SEQ_INIT; + f_ctl |= FC_FC_LAST_SEQ | FC_FC_END_SEQ; + ep = fc_seq_exch(seq); + fc_fill_fc_hdr(conf_frame, FC_RCTL_DD_SOL_CTL, + ep->did, ep->sid, + FC_TYPE_FCP, f_ctl, 0); + lp->tt.seq_send(lp, csp, conf_frame); + } + } + lp->tt.exch_done(seq); + } + fc_io_compl(fsp); +} + +static void fc_fcp_cleanup_cmd(struct fc_fcp_pkt *fsp, int error) +{ + struct fc_lport *lp = fsp->lp; + + if (fsp->seq_ptr) { + lp->tt.exch_done(fsp->seq_ptr); + fsp->seq_ptr = NULL; + } + fsp->status_code = error; +} + +/** + * fc_fcp_cleanup_each_cmd - run fn on each active command + * @lp: logical port + * @id: target id + * @lun: lun + * @error: fsp status code + * + * If lun or id is -1, they are ignored. + */ +static void fc_fcp_cleanup_each_cmd(struct fc_lport *lp, unsigned int id, + unsigned int lun, int error) +{ + struct fc_fcp_internal *si = fc_get_scsi_internal(lp); + struct fc_fcp_pkt *fsp; + struct scsi_cmnd *sc_cmd; + unsigned long flags; + + spin_lock_irqsave(lp->host->host_lock, flags); +restart: + list_for_each_entry(fsp, &si->scsi_pkt_queue, list) { + sc_cmd = fsp->cmd; + if (id != -1 && scmd_id(sc_cmd) != id) + continue; + + if (lun != -1 && sc_cmd->device->lun != lun) + continue; + + fc_fcp_pkt_hold(fsp); + spin_unlock_irqrestore(lp->host->host_lock, flags); + + if (!fc_fcp_lock_pkt(fsp)) { + fc_fcp_cleanup_cmd(fsp, error); + fc_io_compl(fsp); + fc_fcp_unlock_pkt(fsp); + } + + fc_fcp_pkt_release(fsp); + spin_lock_irqsave(lp->host->host_lock, flags); + /* + * while we dropped the lock multiple pkts could + * have been released, so we have to start over. + */ + goto restart; + } + spin_unlock_irqrestore(lp->host->host_lock, flags); +} + +static void fc_fcp_abort_io(struct fc_lport *lp) +{ + fc_fcp_cleanup_each_cmd(lp, -1, -1, FC_HRD_ERROR); +} + +/** + * fc_fcp_pkt_send - send a fcp packet to the lower level. + * @lp: fc lport + * @fsp: fc packet. + * + * This is called by upper layer protocol. + * Return : zero for success and -1 for failure + * Context : called from queuecommand which can be called from process + * or scsi soft irq. + * Locks : called with the host lock and irqs disabled. + */ +static int fc_fcp_pkt_send(struct fc_lport *lp, struct fc_fcp_pkt *fsp) +{ + struct fc_fcp_internal *si = fc_get_scsi_internal(lp); + int rc; + + fsp->cmd->SCp.ptr = (char *)fsp; + fsp->cdb_cmd.fc_dl = htonl(fsp->data_len); + fsp->cdb_cmd.fc_flags = fsp->req_flags & ~FCP_CFL_LEN_MASK; + + int_to_scsilun(fsp->cmd->device->lun, + (struct scsi_lun *)fsp->cdb_cmd.fc_lun); + memcpy(fsp->cdb_cmd.fc_cdb, fsp->cmd->cmnd, fsp->cmd->cmd_len); + list_add_tail(&fsp->list, &si->scsi_pkt_queue); + + spin_unlock_irq(lp->host->host_lock); + rc = lp->tt.fcp_cmd_send(lp, fsp, fc_fcp_recv); + spin_lock_irq(lp->host->host_lock); + if (rc) + list_del(&fsp->list); + + return rc; +} + +static int fc_fcp_cmd_send(struct fc_lport *lp, struct fc_fcp_pkt *fsp, + void (*resp)(struct fc_seq *, + struct fc_frame *fp, + void *arg)) +{ + struct fc_frame *fp; + struct fc_seq *seq; + struct fc_rport *rport; + struct fc_rport_libfc_priv *rp; + const size_t len = sizeof(fsp->cdb_cmd); + int rc = 0; + + if (fc_fcp_lock_pkt(fsp)) + return 0; + + fp = fc_frame_alloc(lp, sizeof(fsp->cdb_cmd)); + if (!fp) { + rc = -1; + goto unlock; + } + + memcpy(fc_frame_payload_get(fp, len), &fsp->cdb_cmd, len); + fr_cmd(fp) = fsp->cmd; + rport = fsp->rport; + fsp->max_payload = rport->maxframe_size; + rp = rport->dd_data; + + fc_fill_fc_hdr(fp, FC_RCTL_DD_UNSOL_CMD, rport->port_id, + fc_host_port_id(rp->local_port->host), FC_TYPE_FCP, + FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0); + + seq = lp->tt.exch_seq_send(lp, fp, resp, fc_fcp_pkt_destroy, fsp, 0); + if (!seq) { + fc_frame_free(fp); + rc = -1; + goto unlock; + } + fsp->last_pkt_time = jiffies; + fsp->seq_ptr = seq; + fc_fcp_pkt_hold(fsp); /* hold for fc_fcp_pkt_destroy */ + + setup_timer(&fsp->timer, fc_fcp_timeout, (unsigned long)fsp); + fc_fcp_timer_set(fsp, + (fsp->tgt_flags & FC_RP_FLAGS_REC_SUPPORTED) ? + FC_SCSI_REC_TOV : FC_SCSI_ER_TIMEOUT); +unlock: + fc_fcp_unlock_pkt(fsp); + return rc; +} + +/* + * transport error handler + */ +static void fc_fcp_error(struct fc_fcp_pkt *fsp, struct fc_frame *fp) +{ + int error = PTR_ERR(fp); + + if (fc_fcp_lock_pkt(fsp)) + return; + + switch (error) { + case -FC_EX_CLOSED: + fc_fcp_retry_cmd(fsp); + goto unlock; + default: + FC_DBG("unknown error %ld\n", PTR_ERR(fp)); + } + /* + * clear abort pending, because the lower layer + * decided to force completion. + */ + fsp->state &= ~FC_SRB_ABORT_PENDING; + fsp->status_code = FC_CMD_PLOGO; + fc_fcp_complete_locked(fsp); +unlock: + fc_fcp_unlock_pkt(fsp); +} + +/* + * Scsi abort handler- calls to send an abort + * and then wait for abort completion + */ +static int fc_fcp_pkt_abort(struct fc_lport *lp, struct fc_fcp_pkt *fsp) +{ + int rc = FAILED; + + if (fc_fcp_send_abort(fsp)) + return FAILED; + + init_completion(&fsp->tm_done); + fsp->wait_for_comp = 1; + + spin_unlock_bh(&fsp->scsi_pkt_lock); + rc = wait_for_completion_timeout(&fsp->tm_done, FC_SCSI_TM_TOV); + spin_lock_bh(&fsp->scsi_pkt_lock); + fsp->wait_for_comp = 0; + + if (!rc) { + FC_DBG("target abort cmd failed\n"); + rc = FAILED; + } else if (fsp->state & FC_SRB_ABORTED) { + FC_DBG("target abort cmd passed\n"); + rc = SUCCESS; + fc_fcp_complete_locked(fsp); + } + + return rc; +} + +/* + * Retry LUN reset after resource allocation failed. + */ +static void fc_lun_reset_send(unsigned long data) +{ + struct fc_fcp_pkt *fsp = (struct fc_fcp_pkt *)data; + struct fc_lport *lp = fsp->lp; + if (lp->tt.fcp_cmd_send(lp, fsp, fc_tm_done)) { + if (fsp->recov_retry++ >= FC_MAX_RECOV_RETRY) + return; + if (fc_fcp_lock_pkt(fsp)) + return; + setup_timer(&fsp->timer, fc_lun_reset_send, (unsigned long)fsp); + fc_fcp_timer_set(fsp, FC_SCSI_REC_TOV); + fc_fcp_unlock_pkt(fsp); + } +} + +/* + * Scsi device reset handler- send a LUN RESET to the device + * and wait for reset reply + */ +static int fc_lun_reset(struct fc_lport *lp, struct fc_fcp_pkt *fsp, + unsigned int id, unsigned int lun) +{ + int rc; + + fsp->cdb_cmd.fc_dl = htonl(fsp->data_len); + fsp->cdb_cmd.fc_tm_flags = FCP_TMF_LUN_RESET; + int_to_scsilun(lun, (struct scsi_lun *)fsp->cdb_cmd.fc_lun); + + fsp->wait_for_comp = 1; + init_completion(&fsp->tm_done); + + fc_lun_reset_send((unsigned long)fsp); + + /* + * wait for completion of reset + * after that make sure all commands are terminated + */ + rc = wait_for_completion_timeout(&fsp->tm_done, FC_SCSI_TM_TOV); + + spin_lock_bh(&fsp->scsi_pkt_lock); + fsp->state |= FC_SRB_COMPL; + spin_unlock_bh(&fsp->scsi_pkt_lock); + + del_timer_sync(&fsp->timer); + + spin_lock_bh(&fsp->scsi_pkt_lock); + if (fsp->seq_ptr) { + lp->tt.exch_done(fsp->seq_ptr); + fsp->seq_ptr = NULL; + } + fsp->wait_for_comp = 0; + spin_unlock_bh(&fsp->scsi_pkt_lock); + + if (!rc) { + FC_DBG("lun reset failed\n"); + return FAILED; + } + + /* cdb_status holds the tmf's rsp code */ + if (fsp->cdb_status != FCP_TMF_CMPL) + return FAILED; + + FC_DBG("lun reset to lun %u completed\n", lun); + fc_fcp_cleanup_each_cmd(lp, id, lun, FC_CMD_ABORTED); + return SUCCESS; +} + +/* + * Task Managment response handler + */ +static void fc_tm_done(struct fc_seq *seq, struct fc_frame *fp, void *arg) +{ + struct fc_fcp_pkt *fsp = arg; + struct fc_frame_header *fh; + + if (IS_ERR(fp)) { + /* + * If there is an error just let it timeout or wait + * for TMF to be aborted if it timedout. + * + * scsi-eh will escalate for when either happens. + */ + return; + } + + if (fc_fcp_lock_pkt(fsp)) + return; + + /* + * raced with eh timeout handler. + */ + if (!fsp->seq_ptr || !fsp->wait_for_comp) { + spin_unlock_bh(&fsp->scsi_pkt_lock); + return; + } + + fh = fc_frame_header_get(fp); + if (fh->fh_type != FC_TYPE_BLS) + fc_fcp_resp(fsp, fp); + fsp->seq_ptr = NULL; + fsp->lp->tt.exch_done(seq); + fc_frame_free(fp); + fc_fcp_unlock_pkt(fsp); +} + +static void fc_fcp_cleanup(struct fc_lport *lp) +{ + fc_fcp_cleanup_each_cmd(lp, -1, -1, FC_ERROR); +} + +/* + * fc_fcp_timeout: called by OS timer function. + * + * The timer has been inactivated and must be reactivated if desired + * using fc_fcp_timer_set(). + * + * Algorithm: + * + * If REC is supported, just issue it, and return. The REC exchange will + * complete or time out, and recovery can continue at that point. + * + * Otherwise, if the response has been received without all the data, + * it has been ER_TIMEOUT since the response was received. + * + * If the response has not been received, + * we see if data was received recently. If it has been, we continue waiting, + * otherwise, we abort the command. + */ +static void fc_fcp_timeout(unsigned long data) +{ + struct fc_fcp_pkt *fsp = (struct fc_fcp_pkt *)data; + struct fc_rport *rport = fsp->rport; + struct fc_rport_libfc_priv *rp = rport->dd_data; + + if (fc_fcp_lock_pkt(fsp)) + return; + + if (fsp->cdb_cmd.fc_tm_flags) + goto unlock; + + fsp->state |= FC_SRB_FCP_PROCESSING_TMO; + + if (rp->flags & FC_RP_FLAGS_REC_SUPPORTED) + fc_fcp_rec(fsp); + else if (time_after_eq(fsp->last_pkt_time + (FC_SCSI_ER_TIMEOUT / 2), + jiffies)) + fc_fcp_timer_set(fsp, FC_SCSI_ER_TIMEOUT); + else if (fsp->state & FC_SRB_RCV_STATUS) + fc_fcp_complete_locked(fsp); + else + fc_timeout_error(fsp); + fsp->state &= ~FC_SRB_FCP_PROCESSING_TMO; +unlock: + fc_fcp_unlock_pkt(fsp); +} + +/* + * Send a REC ELS request + */ +static void fc_fcp_rec(struct fc_fcp_pkt *fsp) +{ + struct fc_lport *lp; + struct fc_frame *fp; + struct fc_rport *rport; + struct fc_rport_libfc_priv *rp; + + lp = fsp->lp; + rport = fsp->rport; + rp = rport->dd_data; + if (!fsp->seq_ptr || rp->rp_state != RPORT_ST_READY) { + fsp->status_code = FC_HRD_ERROR; + fsp->io_status = SUGGEST_RETRY << 24; + fc_fcp_complete_locked(fsp); + return; + } + fp = fc_frame_alloc(lp, sizeof(struct fc_els_rec)); + if (!fp) + goto retry; + + fr_seq(fp) = fsp->seq_ptr; + fc_fill_fc_hdr(fp, FC_RCTL_ELS_REQ, rport->port_id, + fc_host_port_id(rp->local_port->host), FC_TYPE_ELS, + FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0); + if (lp->tt.elsct_send(lp, rport, fp, ELS_REC, fc_fcp_rec_resp, + fsp, jiffies_to_msecs(FC_SCSI_REC_TOV))) { + fc_fcp_pkt_hold(fsp); /* hold while REC outstanding */ + return; + } + fc_frame_free(fp); +retry: + if (fsp->recov_retry++ < FC_MAX_RECOV_RETRY) + fc_fcp_timer_set(fsp, FC_SCSI_REC_TOV); + else + fc_timeout_error(fsp); +} + +/* + * Receive handler for REC ELS frame + * if it is a reject then let the scsi layer to handle + * the timeout. if it is a LS_ACC then if the io was not completed + * then set the timeout and return otherwise complete the exchange + * and tell the scsi layer to restart the I/O. + */ +static void fc_fcp_rec_resp(struct fc_seq *seq, struct fc_frame *fp, void *arg) +{ + struct fc_fcp_pkt *fsp = (struct fc_fcp_pkt *)arg; + struct fc_els_rec_acc *recp; + struct fc_els_ls_rjt *rjt; + u32 e_stat; + u8 opcode; + u32 offset; + enum dma_data_direction data_dir; + enum fc_rctl r_ctl; + struct fc_rport_libfc_priv *rp; + + if (IS_ERR(fp)) { + fc_fcp_rec_error(fsp, fp); + return; + } + + if (fc_fcp_lock_pkt(fsp)) + goto out; + + fsp->recov_retry = 0; + opcode = fc_frame_payload_op(fp); + if (opcode == ELS_LS_RJT) { + rjt = fc_frame_payload_get(fp, sizeof(*rjt)); + switch (rjt->er_reason) { + default: + FC_DEBUG_FCP("device %x unexpected REC reject " + "reason %d expl %d\n", + fsp->rport->port_id, rjt->er_reason, + rjt->er_explan); + /* fall through */ + case ELS_RJT_UNSUP: + FC_DEBUG_FCP("device does not support REC\n"); + rp = fsp->rport->dd_data; + /* + * if we do not spport RECs or got some bogus + * reason then resetup timer so we check for + * making progress. + */ + rp->flags &= ~FC_RP_FLAGS_REC_SUPPORTED; + fc_fcp_timer_set(fsp, FC_SCSI_ER_TIMEOUT); + break; + case ELS_RJT_LOGIC: + case ELS_RJT_UNAB: + /* + * If no data transfer, the command frame got dropped + * so we just retry. If data was transferred, we + * lost the response but the target has no record, + * so we abort and retry. + */ + if (rjt->er_explan == ELS_EXPL_OXID_RXID && + fsp->xfer_len == 0) { + fc_fcp_retry_cmd(fsp); + break; + } + fc_timeout_error(fsp); + break; + } + } else if (opcode == ELS_LS_ACC) { + if (fsp->state & FC_SRB_ABORTED) + goto unlock_out; + + data_dir = fsp->cmd->sc_data_direction; + recp = fc_frame_payload_get(fp, sizeof(*recp)); + offset = ntohl(recp->reca_fc4value); + e_stat = ntohl(recp->reca_e_stat); + + if (e_stat & ESB_ST_COMPLETE) { + + /* + * The exchange is complete. + * + * For output, we must've lost the response. + * For input, all data must've been sent. + * We lost may have lost the response + * (and a confirmation was requested) and maybe + * some data. + * + * If all data received, send SRR + * asking for response. If partial data received, + * or gaps, SRR requests data at start of gap. + * Recovery via SRR relies on in-order-delivery. + */ + if (data_dir == DMA_TO_DEVICE) { + r_ctl = FC_RCTL_DD_CMD_STATUS; + } else if (fsp->xfer_contig_end == offset) { + r_ctl = FC_RCTL_DD_CMD_STATUS; + } else { + offset = fsp->xfer_contig_end; + r_ctl = FC_RCTL_DD_SOL_DATA; + } + fc_fcp_srr(fsp, r_ctl, offset); + } else if (e_stat & ESB_ST_SEQ_INIT) { + + /* + * The remote port has the initiative, so just + * keep waiting for it to complete. + */ + fc_fcp_timer_set(fsp, FC_SCSI_REC_TOV); + } else { + + /* + * The exchange is incomplete, we have seq. initiative. + * Lost response with requested confirmation, + * lost confirmation, lost transfer ready or + * lost write data. + * + * For output, if not all data was received, ask + * for transfer ready to be repeated. + * + * If we received or sent all the data, send SRR to + * request response. + * + * If we lost a response, we may have lost some read + * data as well. + */ + r_ctl = FC_RCTL_DD_SOL_DATA; + if (data_dir == DMA_TO_DEVICE) { + r_ctl = FC_RCTL_DD_CMD_STATUS; + if (offset < fsp->data_len) + r_ctl = FC_RCTL_DD_DATA_DESC; + } else if (offset == fsp->xfer_contig_end) { + r_ctl = FC_RCTL_DD_CMD_STATUS; + } else if (fsp->xfer_contig_end < offset) { + offset = fsp->xfer_contig_end; + } + fc_fcp_srr(fsp, r_ctl, offset); + } + } +unlock_out: + fc_fcp_unlock_pkt(fsp); +out: + fc_fcp_pkt_release(fsp); /* drop hold for outstanding REC */ + fc_frame_free(fp); +} + +/* + * Handle error response or timeout for REC exchange. + */ +static void fc_fcp_rec_error(struct fc_fcp_pkt *fsp, struct fc_frame *fp) +{ + int error = PTR_ERR(fp); + + if (fc_fcp_lock_pkt(fsp)) + goto out; + + switch (error) { + case -FC_EX_CLOSED: + fc_fcp_retry_cmd(fsp); + break; + + default: + FC_DBG("REC %p fid %x error unexpected error %d\n", + fsp, fsp->rport->port_id, error); + fsp->status_code = FC_CMD_PLOGO; + /* fall through */ + + case -FC_EX_TIMEOUT: + /* + * Assume REC or LS_ACC was lost. + * The exchange manager will have aborted REC, so retry. + */ + FC_DBG("REC fid %x error error %d retry %d/%d\n", + fsp->rport->port_id, error, fsp->recov_retry, + FC_MAX_RECOV_RETRY); + if (fsp->recov_retry++ < FC_MAX_RECOV_RETRY) + fc_fcp_rec(fsp); + else + fc_timeout_error(fsp); + break; + } + fc_fcp_unlock_pkt(fsp); +out: + fc_fcp_pkt_release(fsp); /* drop hold for outstanding REC */ +} + +/* + * Time out error routine: + * abort's the I/O close the exchange and + * send completion notification to scsi layer + */ +static void fc_timeout_error(struct fc_fcp_pkt *fsp) +{ + fsp->status_code = FC_CMD_TIME_OUT; + fsp->cdb_status = 0; + fsp->io_status = 0; + /* + * if this fails then we let the scsi command timer fire and + * scsi-ml escalate. + */ + fc_fcp_send_abort(fsp); +} + +/* + * Sequence retransmission request. + * This is called after receiving status but insufficient data, or + * when expecting status but the request has timed out. + */ +static void fc_fcp_srr(struct fc_fcp_pkt *fsp, enum fc_rctl r_ctl, u32 offset) +{ + struct fc_lport *lp = fsp->lp; + struct fc_rport *rport; + struct fc_rport_libfc_priv *rp; + struct fc_exch *ep = fc_seq_exch(fsp->seq_ptr); + struct fc_seq *seq; + struct fcp_srr *srr; + struct fc_frame *fp; + u8 cdb_op; + + rport = fsp->rport; + rp = rport->dd_data; + cdb_op = fsp->cdb_cmd.fc_cdb[0]; + + if (!(rp->flags & FC_RP_FLAGS_RETRY) || rp->rp_state != RPORT_ST_READY) + goto retry; /* shouldn't happen */ + fp = fc_frame_alloc(lp, sizeof(*srr)); + if (!fp) + goto retry; + + srr = fc_frame_payload_get(fp, sizeof(*srr)); + memset(srr, 0, sizeof(*srr)); + srr->srr_op = ELS_SRR; + srr->srr_ox_id = htons(ep->oxid); + srr->srr_rx_id = htons(ep->rxid); + srr->srr_r_ctl = r_ctl; + srr->srr_rel_off = htonl(offset); + + fc_fill_fc_hdr(fp, FC_RCTL_ELS4_REQ, rport->port_id, + fc_host_port_id(rp->local_port->host), FC_TYPE_FCP, + FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0); + + seq = lp->tt.exch_seq_send(lp, fp, fc_fcp_srr_resp, NULL, + fsp, jiffies_to_msecs(FC_SCSI_REC_TOV)); + if (!seq) { + fc_frame_free(fp); + goto retry; + } + fsp->recov_seq = seq; + fsp->xfer_len = offset; + fsp->xfer_contig_end = offset; + fsp->state &= ~FC_SRB_RCV_STATUS; + fc_fcp_pkt_hold(fsp); /* hold for outstanding SRR */ + return; +retry: + fc_fcp_retry_cmd(fsp); +} + +/* + * Handle response from SRR. + */ +static void fc_fcp_srr_resp(struct fc_seq *seq, struct fc_frame *fp, void *arg) +{ + struct fc_fcp_pkt *fsp = arg; + struct fc_frame_header *fh; + + if (IS_ERR(fp)) { + fc_fcp_srr_error(fsp, fp); + return; + } + + if (fc_fcp_lock_pkt(fsp)) + goto out; + + fh = fc_frame_header_get(fp); + /* + * BUG? fc_fcp_srr_error calls exch_done which would release + * the ep. But if fc_fcp_srr_error had got -FC_EX_TIMEOUT, + * then fc_exch_timeout would be sending an abort. The exch_done + * call by fc_fcp_srr_error would prevent fc_exch.c from seeing + * an abort response though. + */ + if (fh->fh_type == FC_TYPE_BLS) { + fc_fcp_unlock_pkt(fsp); + return; + } + + fsp->recov_seq = NULL; + switch (fc_frame_payload_op(fp)) { + case ELS_LS_ACC: + fsp->recov_retry = 0; + fc_fcp_timer_set(fsp, FC_SCSI_REC_TOV); + break; + case ELS_LS_RJT: + default: + fc_timeout_error(fsp); + break; + } + fc_fcp_unlock_pkt(fsp); + fsp->lp->tt.exch_done(seq); +out: + fc_frame_free(fp); + fc_fcp_pkt_release(fsp); /* drop hold for outstanding SRR */ +} + +static void fc_fcp_srr_error(struct fc_fcp_pkt *fsp, struct fc_frame *fp) +{ + if (fc_fcp_lock_pkt(fsp)) + goto out; + fsp->lp->tt.exch_done(fsp->recov_seq); + fsp->recov_seq = NULL; + switch (PTR_ERR(fp)) { + case -FC_EX_TIMEOUT: + if (fsp->recov_retry++ < FC_MAX_RECOV_RETRY) + fc_fcp_rec(fsp); + else + fc_timeout_error(fsp); + break; + case -FC_EX_CLOSED: /* e.g., link failure */ + /* fall through */ + default: + fc_fcp_retry_cmd(fsp); + break; + } + fc_fcp_unlock_pkt(fsp); +out: + fc_fcp_pkt_release(fsp); /* drop hold for outstanding SRR */ +} + +static inline int fc_fcp_lport_queue_ready(struct fc_lport *lp) +{ + /* lock ? */ + return (lp->state == LPORT_ST_READY) && (lp->link_status & FC_LINK_UP); +} + +/** + * fc_queuecommand - The queuecommand function of the scsi template + * @cmd: struct scsi_cmnd to be executed + * @done: Callback function to be called when cmd is completed + * + * this is the i/o strategy routine, called by the scsi layer + * this routine is called with holding the host_lock. + */ +int fc_queuecommand(struct scsi_cmnd *sc_cmd, void (*done)(struct scsi_cmnd *)) +{ + struct fc_lport *lp; + struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device)); + struct fc_fcp_pkt *fsp; + struct fc_rport_libfc_priv *rp; + int rval; + int rc = 0; + struct fcoe_dev_stats *stats; + + lp = shost_priv(sc_cmd->device->host); + + rval = fc_remote_port_chkready(rport); + if (rval) { + sc_cmd->result = rval; + done(sc_cmd); + goto out; + } + + if (!*(struct fc_remote_port **)rport->dd_data) { + /* + * rport is transitioning from blocked/deleted to + * online + */ + sc_cmd->result = DID_IMM_RETRY << 16; + done(sc_cmd); + goto out; + } + + rp = rport->dd_data; + + if (!fc_fcp_lport_queue_ready(lp)) { + rc = SCSI_MLQUEUE_HOST_BUSY; + goto out; + } + + fsp = fc_fcp_pkt_alloc(lp, GFP_ATOMIC); + if (fsp == NULL) { + rc = SCSI_MLQUEUE_HOST_BUSY; + goto out; + } + + /* + * build the libfc request pkt + */ + fsp->cmd = sc_cmd; /* save the cmd */ + fsp->lp = lp; /* save the softc ptr */ + fsp->rport = rport; /* set the remote port ptr */ + sc_cmd->scsi_done = done; + + /* + * set up the transfer length + */ + fsp->data_len = scsi_bufflen(sc_cmd); + fsp->xfer_len = 0; + + /* + * setup the data direction + */ + stats = lp->dev_stats[smp_processor_id()]; + if (sc_cmd->sc_data_direction == DMA_FROM_DEVICE) { + fsp->req_flags = FC_SRB_READ; + stats->InputRequests++; + stats->InputMegabytes = fsp->data_len; + } else if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) { + fsp->req_flags = FC_SRB_WRITE; + stats->OutputRequests++; + stats->OutputMegabytes = fsp->data_len; + } else { + fsp->req_flags = 0; + stats->ControlRequests++; + } + + fsp->tgt_flags = rp->flags; + + init_timer(&fsp->timer); + fsp->timer.data = (unsigned long)fsp; + + /* + * send it to the lower layer + * if we get -1 return then put the request in the pending + * queue. + */ + rval = fc_fcp_pkt_send(lp, fsp); + if (rval != 0) { + fsp->state = FC_SRB_FREE; + fc_fcp_pkt_release(fsp); + rc = SCSI_MLQUEUE_HOST_BUSY; + } +out: + return rc; +} +EXPORT_SYMBOL(fc_queuecommand); + +/** + * fc_io_compl - Handle responses for completed commands + * @fsp: scsi packet + * + * Translates a error to a Linux SCSI error. + * + * The fcp packet lock must be held when calling. + */ +static void fc_io_compl(struct fc_fcp_pkt *fsp) +{ + struct fc_fcp_internal *si; + struct scsi_cmnd *sc_cmd; + struct fc_lport *lp; + unsigned long flags; + + fsp->state |= FC_SRB_COMPL; + if (!(fsp->state & FC_SRB_FCP_PROCESSING_TMO)) { + spin_unlock_bh(&fsp->scsi_pkt_lock); + del_timer_sync(&fsp->timer); + spin_lock_bh(&fsp->scsi_pkt_lock); + } + + lp = fsp->lp; + si = fc_get_scsi_internal(lp); + spin_lock_irqsave(lp->host->host_lock, flags); + if (!fsp->cmd) { + spin_unlock_irqrestore(lp->host->host_lock, flags); + return; + } + + /* + * if a command timed out while we had to try and throttle IO + * and it is now getting cleaned up, then we are about to + * try again so clear the throttled flag incase we get more + * time outs. + */ + if (si->throttled && fsp->state & FC_SRB_NOMEM) + si->throttled = 0; + + sc_cmd = fsp->cmd; + fsp->cmd = NULL; + + if (!sc_cmd->SCp.ptr) { + spin_unlock_irqrestore(lp->host->host_lock, flags); + return; + } + + CMD_SCSI_STATUS(sc_cmd) = fsp->cdb_status; + switch (fsp->status_code) { + case FC_COMPLETE: + if (fsp->cdb_status == 0) { + /* + * good I/O status + */ + sc_cmd->result = DID_OK << 16; + if (fsp->scsi_resid) + CMD_RESID_LEN(sc_cmd) = fsp->scsi_resid; + } else if (fsp->cdb_status == QUEUE_FULL) { + struct scsi_device *tmp_sdev; + struct scsi_device *sdev = sc_cmd->device; + + shost_for_each_device(tmp_sdev, sdev->host) { + if (tmp_sdev->id != sdev->id) + continue; + + if (tmp_sdev->queue_depth > 1) { + scsi_track_queue_full(tmp_sdev, + tmp_sdev-> + queue_depth - 1); + } + } + sc_cmd->result = (DID_OK << 16) | fsp->cdb_status; + } else { + /* + * transport level I/O was ok but scsi + * has non zero status + */ + sc_cmd->result = (DID_OK << 16) | fsp->cdb_status; + } + break; + case FC_ERROR: + sc_cmd->result = DID_ERROR << 16; + break; + case FC_DATA_UNDRUN: + if (fsp->cdb_status == 0) { + /* + * scsi status is good but transport level + * underrun. for read it should be an error?? + */ + sc_cmd->result = (DID_OK << 16) | fsp->cdb_status; + } else { + /* + * scsi got underrun, this is an error + */ + CMD_RESID_LEN(sc_cmd) = fsp->scsi_resid; + sc_cmd->result = (DID_ERROR << 16) | fsp->cdb_status; + } + break; + case FC_DATA_OVRRUN: + /* + * overrun is an error + */ + sc_cmd->result = (DID_ERROR << 16) | fsp->cdb_status; + break; + case FC_CMD_ABORTED: + sc_cmd->result = (DID_ABORT << 16) | fsp->io_status; + break; + case FC_CMD_TIME_OUT: + sc_cmd->result = (DID_BUS_BUSY << 16) | fsp->io_status; + break; + case FC_CMD_RESET: + sc_cmd->result = (DID_RESET << 16); + break; + case FC_HRD_ERROR: + sc_cmd->result = (DID_NO_CONNECT << 16); + break; + default: + sc_cmd->result = (DID_ERROR << 16); + break; + } + + list_del(&fsp->list); + sc_cmd->SCp.ptr = NULL; + sc_cmd->scsi_done(sc_cmd); + spin_unlock_irqrestore(lp->host->host_lock, flags); + + /* release ref from initial allocation in queue command */ + fc_fcp_pkt_release(fsp); +} + +/** + * fc_fcp_complete - complete processing of a fcp packet + * @fsp: fcp packet + * + * This function may sleep if a fsp timer is pending. + * The host lock must not be held by caller. + */ +void fc_fcp_complete(struct fc_fcp_pkt *fsp) +{ + if (fc_fcp_lock_pkt(fsp)) + return; + + fc_fcp_complete_locked(fsp); + fc_fcp_unlock_pkt(fsp); +} +EXPORT_SYMBOL(fc_fcp_complete); + +/** + * fc_eh_abort - Abort a command...from scsi host template + * @sc_cmd: scsi command to abort + * + * send ABTS to the target device and wait for the response + * sc_cmd is the pointer to the command to be aborted. + */ +int fc_eh_abort(struct scsi_cmnd *sc_cmd) +{ + struct fc_fcp_pkt *fsp; + struct fc_lport *lp; + int rc = FAILED; + unsigned long flags; + + lp = shost_priv(sc_cmd->device->host); + if (lp->state != LPORT_ST_READY) + return rc; + else if (!(lp->link_status & FC_LINK_UP)) + return rc; + + spin_lock_irqsave(lp->host->host_lock, flags); + fsp = CMD_SP(sc_cmd); + if (!fsp) { + /* command completed while scsi eh was setting up */ + spin_unlock_irqrestore(lp->host->host_lock, flags); + return SUCCESS; + } + /* grab a ref so the fsp and sc_cmd cannot be relased from under us */ + fc_fcp_pkt_hold(fsp); + spin_unlock_irqrestore(lp->host->host_lock, flags); + + if (fc_fcp_lock_pkt(fsp)) { + /* completed while we were waiting for timer to be deleted */ + rc = SUCCESS; + goto release_pkt; + } + + rc = fc_fcp_pkt_abort(lp, fsp); + fc_fcp_unlock_pkt(fsp); + +release_pkt: + fc_fcp_pkt_release(fsp); + return rc; +} +EXPORT_SYMBOL(fc_eh_abort); + +/** + * fc_eh_device_reset: Reset a single LUN + * @sc_cmd: scsi command + * + * Set from scsi host template to send tm cmd to the target and wait for the + * response. + */ +int fc_eh_device_reset(struct scsi_cmnd *sc_cmd) +{ + struct fc_lport *lp; + struct fc_fcp_pkt *fsp; + struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device)); + int rc = FAILED; + struct fc_rport_libfc_priv *rp; + int rval; + + rval = fc_remote_port_chkready(rport); + if (rval) + goto out; + + rp = rport->dd_data; + lp = shost_priv(sc_cmd->device->host); + + if (lp->state != LPORT_ST_READY) + return rc; + + fsp = fc_fcp_pkt_alloc(lp, GFP_NOIO); + if (fsp == NULL) { + FC_DBG("could not allocate scsi_pkt\n"); + sc_cmd->result = DID_NO_CONNECT << 16; + goto out; + } + + /* + * Build the libfc request pkt. Do not set the scsi cmnd, because + * the sc passed in is not setup for execution like when sent + * through the queuecommand callout. + */ + fsp->lp = lp; /* save the softc ptr */ + fsp->rport = rport; /* set the remote port ptr */ + + /* + * flush outstanding commands + */ + rc = fc_lun_reset(lp, fsp, scmd_id(sc_cmd), sc_cmd->device->lun); + fsp->state = FC_SRB_FREE; + fc_fcp_pkt_release(fsp); + +out: + return rc; +} +EXPORT_SYMBOL(fc_eh_device_reset); + +/** + * fc_eh_host_reset - The reset function will reset the ports on the host. + * @sc_cmd: scsi command + */ +int fc_eh_host_reset(struct scsi_cmnd *sc_cmd) +{ + struct Scsi_Host *shost = sc_cmd->device->host; + struct fc_lport *lp = shost_priv(shost); + unsigned long wait_tmo; + + lp->tt.lport_reset(lp); + wait_tmo = jiffies + FC_HOST_RESET_TIMEOUT; + while (!fc_fcp_lport_queue_ready(lp) && time_before(jiffies, wait_tmo)) + msleep(1000); + + if (fc_fcp_lport_queue_ready(lp)) { + shost_printk(KERN_INFO, shost, "Host reset succeeded.\n"); + return SUCCESS; + } else { + shost_printk(KERN_INFO, shost, "Host reset failed. " + "lport not ready.\n"); + return FAILED; + } +} +EXPORT_SYMBOL(fc_eh_host_reset); + +/** + * fc_slave_alloc - configure queue depth + * @sdev: scsi device + * + * Configures queue depth based on host's cmd_per_len. If not set + * then we use the libfc default. + */ +int fc_slave_alloc(struct scsi_device *sdev) +{ + struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); + int queue_depth; + + if (!rport || fc_remote_port_chkready(rport)) + return -ENXIO; + + if (sdev->tagged_supported) { + if (sdev->host->hostt->cmd_per_lun) + queue_depth = sdev->host->hostt->cmd_per_lun; + else + queue_depth = FC_FCP_DFLT_QUEUE_DEPTH; + scsi_activate_tcq(sdev, queue_depth); + } + return 0; +} +EXPORT_SYMBOL(fc_slave_alloc); + +int fc_change_queue_depth(struct scsi_device *sdev, int qdepth) +{ + scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + return sdev->queue_depth; +} +EXPORT_SYMBOL(fc_change_queue_depth); + +int fc_change_queue_type(struct scsi_device *sdev, int tag_type) +{ + if (sdev->tagged_supported) { + scsi_set_tag_type(sdev, tag_type); + if (tag_type) + scsi_activate_tcq(sdev, sdev->queue_depth); + else + scsi_deactivate_tcq(sdev, sdev->queue_depth); + } else + tag_type = 0; + + return tag_type; +} +EXPORT_SYMBOL(fc_change_queue_type); + +void fc_fcp_destroy(struct fc_lport *lp) +{ + struct fc_fcp_internal *si = fc_get_scsi_internal(lp); + + if (!list_empty(&si->scsi_pkt_queue)) + printk(KERN_ERR "Leaked scsi packets.\n"); + + mempool_destroy(si->scsi_pkt_pool); + kfree(si); + lp->scsi_priv = NULL; +} +EXPORT_SYMBOL(fc_fcp_destroy); + +int fc_fcp_init(struct fc_lport *lp) +{ + int rc; + struct fc_fcp_internal *si; + + if (!lp->tt.fcp_cmd_send) + lp->tt.fcp_cmd_send = fc_fcp_cmd_send; + + if (!lp->tt.fcp_cleanup) + lp->tt.fcp_cleanup = fc_fcp_cleanup; + + if (!lp->tt.fcp_abort_io) + lp->tt.fcp_abort_io = fc_fcp_abort_io; + + si = kzalloc(sizeof(struct fc_fcp_internal), GFP_KERNEL); + if (!si) + return -ENOMEM; + lp->scsi_priv = si; + INIT_LIST_HEAD(&si->scsi_pkt_queue); + + si->scsi_pkt_pool = mempool_create_slab_pool(2, scsi_pkt_cachep); + if (!si->scsi_pkt_pool) { + rc = -ENOMEM; + goto free_internal; + } + return 0; + +free_internal: + kfree(si); + return rc; +} +EXPORT_SYMBOL(fc_fcp_init); + +static int __init libfc_init(void) +{ + int rc; + + scsi_pkt_cachep = kmem_cache_create("libfc_fcp_pkt", + sizeof(struct fc_fcp_pkt), + 0, SLAB_HWCACHE_ALIGN, NULL); + if (scsi_pkt_cachep == NULL) { + FC_DBG("Unable to allocate SRB cache...module load failed!"); + return -ENOMEM; + } + + rc = fc_setup_exch_mgr(); + if (rc) + goto destroy_pkt_cache; + + rc = fc_setup_rport(); + if (rc) + goto destroy_em; + + return rc; +destroy_em: + fc_destroy_exch_mgr(); +destroy_pkt_cache: + kmem_cache_destroy(scsi_pkt_cachep); + return rc; +} + +static void __exit libfc_exit(void) +{ + kmem_cache_destroy(scsi_pkt_cachep); + fc_destroy_exch_mgr(); + fc_destroy_rport(); +} + +module_init(libfc_init); +module_exit(libfc_exit); diff --git a/drivers/scsi/libfc/fc_frame.c b/drivers/scsi/libfc/fc_frame.c new file mode 100644 index 0000000..63fe00c --- /dev/null +++ b/drivers/scsi/libfc/fc_frame.c @@ -0,0 +1,89 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +/* + * Frame allocation. + */ +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/skbuff.h> +#include <linux/crc32.h> + +#include <scsi/fc_frame.h> + +/* + * Check the CRC in a frame. + */ +u32 fc_frame_crc_check(struct fc_frame *fp) +{ + u32 crc; + u32 error; + const u8 *bp; + unsigned int len; + + WARN_ON(!fc_frame_is_linear(fp)); + fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED; + len = (fr_len(fp) + 3) & ~3; /* round up length to include fill */ + bp = (const u8 *) fr_hdr(fp); + crc = ~crc32(~0, bp, len); + error = crc ^ fr_crc(fp); + return error; +} +EXPORT_SYMBOL(fc_frame_crc_check); + +/* + * Allocate a frame intended to be sent via fcoe_xmit. + * Get an sk_buff for the frame and set the length. + */ +struct fc_frame *__fc_frame_alloc(size_t len) +{ + struct fc_frame *fp; + struct sk_buff *skb; + + WARN_ON((len % sizeof(u32)) != 0); + len += sizeof(struct fc_frame_header); + skb = dev_alloc_skb(len + FC_FRAME_HEADROOM + FC_FRAME_TAILROOM); + if (!skb) + return NULL; + fp = (struct fc_frame *) skb; + fc_frame_init(fp); + skb_reserve(skb, FC_FRAME_HEADROOM); + skb_put(skb, len); + return fp; +} +EXPORT_SYMBOL(__fc_frame_alloc); + + +struct fc_frame *fc_frame_alloc_fill(struct fc_lport *lp, size_t payload_len) +{ + struct fc_frame *fp; + size_t fill; + + fill = payload_len % 4; + if (fill != 0) + fill = 4 - fill; + fp = __fc_frame_alloc(payload_len + fill); + if (fp) { + memset((char *) fr_hdr(fp) + payload_len, 0, fill); + /* trim is OK, we just allocated it so there are no fragments */ + skb_trim(fp_skb(fp), + payload_len + sizeof(struct fc_frame_header)); + } + return fp; +} diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c new file mode 100644 index 0000000..0b9bdb1 --- /dev/null +++ b/drivers/scsi/libfc/fc_lport.c @@ -0,0 +1,1604 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +/* + * PORT LOCKING NOTES + * + * These comments only apply to the 'port code' which consists of the lport, + * disc and rport blocks. + * + * MOTIVATION + * + * The lport, disc and rport blocks all have mutexes that are used to protect + * those objects. The main motivation for these locks is to prevent from + * having an lport reset just before we send a frame. In that scenario the + * lport's FID would get set to zero and then we'd send a frame with an + * invalid SID. We also need to ensure that states don't change unexpectedly + * while processing another state. + * + * HEIRARCHY + * + * The following heirarchy defines the locking rules. A greater lock + * may be held before acquiring a lesser lock, but a lesser lock should never + * be held while attempting to acquire a greater lock. Here is the heirarchy- + * + * lport > disc, lport > rport, disc > rport + * + * CALLBACKS + * + * The callbacks cause complications with this scheme. There is a callback + * from the rport (to either lport or disc) and a callback from disc + * (to the lport). + * + * As rports exit the rport state machine a callback is made to the owner of + * the rport to notify success or failure. Since the callback is likely to + * cause the lport or disc to grab its lock we cannot hold the rport lock + * while making the callback. To ensure that the rport is not free'd while + * processing the callback the rport callbacks are serialized through a + * single-threaded workqueue. An rport would never be free'd while in a + * callback handler becuase no other rport work in this queue can be executed + * at the same time. + * + * When discovery succeeds or fails a callback is made to the lport as + * notification. Currently, succesful discovery causes the lport to take no + * action. A failure will cause the lport to reset. There is likely a circular + * locking problem with this implementation. + */ + +/* + * LPORT LOCKING + * + * The critical sections protected by the lport's mutex are quite broad and + * may be improved upon in the future. The lport code and its locking doesn't + * influence the I/O path, so excessive locking doesn't penalize I/O + * performance. + * + * The strategy is to lock whenever processing a request or response. Note + * that every _enter_* function corresponds to a state change. They generally + * change the lports state and then send a request out on the wire. We lock + * before calling any of these functions to protect that state change. This + * means that the entry points into the lport block manage the locks while + * the state machine can transition between states (i.e. _enter_* functions) + * while always staying protected. + * + * When handling responses we also hold the lport mutex broadly. When the + * lport receives the response frame it locks the mutex and then calls the + * appropriate handler for the particuar response. Generally a response will + * trigger a state change and so the lock must already be held. + * + * Retries also have to consider the locking. The retries occur from a work + * context and the work function will lock the lport and then retry the state + * (i.e. _enter_* function). + */ + +#include <linux/timer.h> +#include <asm/unaligned.h> + +#include <scsi/fc/fc_gs.h> + +#include <scsi/libfc.h> +#include <scsi/fc_encode.h> + +/* Fabric IDs to use for point-to-point mode, chosen on whims. */ +#define FC_LOCAL_PTP_FID_LO 0x010101 +#define FC_LOCAL_PTP_FID_HI 0x010102 + +#define DNS_DELAY 3 /* Discovery delay after RSCN (in seconds)*/ + +static int fc_lport_debug; + +#define FC_DEBUG_LPORT(fmt...) \ + do { \ + if (fc_lport_debug) \ + FC_DBG(fmt); \ + } while (0) + +static void fc_lport_error(struct fc_lport *, struct fc_frame *); + +static void fc_lport_enter_reset(struct fc_lport *); +static void fc_lport_enter_flogi(struct fc_lport *); +static void fc_lport_enter_dns(struct fc_lport *); +static void fc_lport_enter_rpn_id(struct fc_lport *); +static void fc_lport_enter_rft_id(struct fc_lport *); +static void fc_lport_enter_scr(struct fc_lport *); +static void fc_lport_enter_ready(struct fc_lport *); +static void fc_lport_enter_logo(struct fc_lport *); + +static const char *fc_lport_state_names[] = { + [LPORT_ST_NONE] = "none", + [LPORT_ST_FLOGI] = "FLOGI", + [LPORT_ST_DNS] = "dNS", + [LPORT_ST_RPN_ID] = "RPN_ID", + [LPORT_ST_RFT_ID] = "RFT_ID", + [LPORT_ST_SCR] = "SCR", + [LPORT_ST_READY] = "Ready", + [LPORT_ST_LOGO] = "LOGO", + [LPORT_ST_RESET] = "reset", +}; + +static int fc_frame_drop(struct fc_lport *lport, struct fc_frame *fp) +{ + fc_frame_free(fp); + return 0; +} + +/** + * fc_lport_rport_callback - Event handler for rport events + * @lport: The lport which is receiving the event + * @rport: The rport which the event has occured on + * @event: The event that occured + * + * Locking Note: The rport lock should not be held when calling + * this function. + */ +static void fc_lport_rport_callback(struct fc_lport *lport, + struct fc_rport *rport, + enum fc_rport_event event) +{ + FC_DEBUG_LPORT("Received a %d event for port (%6x)\n", event, + rport->port_id); + + switch (event) { + case RPORT_EV_CREATED: + if (rport->port_id == FC_FID_DIR_SERV) { + mutex_lock(&lport->lp_mutex); + if (lport->state == LPORT_ST_DNS) { + lport->dns_rp = rport; + fc_lport_enter_rpn_id(lport); + } else { + FC_DEBUG_LPORT("Received an CREATED event on " + "port (%6x) for the directory " + "server, but the lport is not " + "in the DNS state, it's in the " + "%d state", rport->port_id, + lport->state); + lport->tt.rport_logoff(rport); + } + mutex_unlock(&lport->lp_mutex); + } else + FC_DEBUG_LPORT("Received an event for port (%6x) " + "which is not the directory server\n", + rport->port_id); + break; + case RPORT_EV_LOGO: + case RPORT_EV_FAILED: + case RPORT_EV_STOP: + if (rport->port_id == FC_FID_DIR_SERV) { + mutex_lock(&lport->lp_mutex); + lport->dns_rp = NULL; + mutex_unlock(&lport->lp_mutex); + + } else + FC_DEBUG_LPORT("Received an event for port (%6x) " + "which is not the directory server\n", + rport->port_id); + break; + case RPORT_EV_NONE: + break; + } +} + +/** + * fc_lport_state - Return a string which represents the lport's state + * @lport: The lport whose state is to converted to a string + */ +static const char *fc_lport_state(struct fc_lport *lport) +{ + const char *cp; + + cp = fc_lport_state_names[lport->state]; + if (!cp) + cp = "unknown"; + return cp; +} + +/** + * fc_lport_ptp_setup - Create an rport for point-to-point mode + * @lport: The lport to attach the ptp rport to + * @fid: The FID of the ptp rport + * @remote_wwpn: The WWPN of the ptp rport + * @remote_wwnn: The WWNN of the ptp rport + */ +static void fc_lport_ptp_setup(struct fc_lport *lport, + u32 remote_fid, u64 remote_wwpn, + u64 remote_wwnn) +{ + struct fc_disc_port dp; + + dp.lp = lport; + dp.ids.port_id = remote_fid; + dp.ids.port_name = remote_wwpn; + dp.ids.node_name = remote_wwnn; + dp.ids.roles = FC_RPORT_ROLE_UNKNOWN; + + if (lport->ptp_rp) { + lport->tt.rport_logoff(lport->ptp_rp); + lport->ptp_rp = NULL; + } + + lport->ptp_rp = fc_rport_rogue_create(&dp); + + lport->tt.rport_login(lport->ptp_rp); + + fc_lport_enter_ready(lport); +} + +void fc_get_host_port_type(struct Scsi_Host *shost) +{ + /* TODO - currently just NPORT */ + fc_host_port_type(shost) = FC_PORTTYPE_NPORT; +} +EXPORT_SYMBOL(fc_get_host_port_type); + +void fc_get_host_port_state(struct Scsi_Host *shost) +{ + struct fc_lport *lp = shost_priv(shost); + + if ((lp->link_status & FC_LINK_UP) == FC_LINK_UP) + fc_host_port_state(shost) = FC_PORTSTATE_ONLINE; + else + fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; +} +EXPORT_SYMBOL(fc_get_host_port_state); + +void fc_get_host_speed(struct Scsi_Host *shost) +{ + struct fc_lport *lport = shost_priv(shost); + + fc_host_speed(shost) = lport->link_speed; +} +EXPORT_SYMBOL(fc_get_host_speed); + +struct fc_host_statistics *fc_get_host_stats(struct Scsi_Host *shost) +{ + int i; + struct fc_host_statistics *fcoe_stats; + struct fc_lport *lp = shost_priv(shost); + struct timespec v0, v1; + + fcoe_stats = &lp->host_stats; + memset(fcoe_stats, 0, sizeof(struct fc_host_statistics)); + + jiffies_to_timespec(jiffies, &v0); + jiffies_to_timespec(lp->boot_time, &v1); + fcoe_stats->seconds_since_last_reset = (v0.tv_sec - v1.tv_sec); + + for_each_online_cpu(i) { + struct fcoe_dev_stats *stats = lp->dev_stats[i]; + if (stats == NULL) + continue; + fcoe_stats->tx_frames += stats->TxFrames; + fcoe_stats->tx_words += stats->TxWords; + fcoe_stats->rx_frames += stats->RxFrames; + fcoe_stats->rx_words += stats->RxWords; + fcoe_stats->error_frames += stats->ErrorFrames; + fcoe_stats->invalid_crc_count += stats->InvalidCRCCount; + fcoe_stats->fcp_input_requests += stats->InputRequests; + fcoe_stats->fcp_output_requests += stats->OutputRequests; + fcoe_stats->fcp_control_requests += stats->ControlRequests; + fcoe_stats->fcp_input_megabytes += stats->InputMegabytes; + fcoe_stats->fcp_output_megabytes += stats->OutputMegabytes; + fcoe_stats->link_failure_count += stats->LinkFailureCount; + } + fcoe_stats->lip_count = -1; + fcoe_stats->nos_count = -1; + fcoe_stats->loss_of_sync_count = -1; + fcoe_stats->loss_of_signal_count = -1; + fcoe_stats->prim_seq_protocol_err_count = -1; + fcoe_stats->dumped_frames = -1; + return fcoe_stats; +} +EXPORT_SYMBOL(fc_get_host_stats); + +/* + * Fill in FLOGI command for request. + */ +static void +fc_lport_flogi_fill(struct fc_lport *lport, struct fc_els_flogi *flogi, + unsigned int op) +{ + struct fc_els_csp *sp; + struct fc_els_cssp *cp; + + memset(flogi, 0, sizeof(*flogi)); + flogi->fl_cmd = (u8) op; + put_unaligned_be64(lport->wwpn, &flogi->fl_wwpn); + put_unaligned_be64(lport->wwnn, &flogi->fl_wwnn); + sp = &flogi->fl_csp; + sp->sp_hi_ver = 0x20; + sp->sp_lo_ver = 0x20; + sp->sp_bb_cred = htons(10); /* this gets set by gateway */ + sp->sp_bb_data = htons((u16) lport->mfs); + cp = &flogi->fl_cssp[3 - 1]; /* class 3 parameters */ + cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ); + if (op != ELS_FLOGI) { + sp->sp_features = htons(FC_SP_FT_CIRO); + sp->sp_tot_seq = htons(255); /* seq. we accept */ + sp->sp_rel_off = htons(0x1f); + sp->sp_e_d_tov = htonl(lport->e_d_tov); + + cp->cp_rdfs = htons((u16) lport->mfs); + cp->cp_con_seq = htons(255); + cp->cp_open_seq = 1; + } +} + +/* + * Add a supported FC-4 type. + */ +static void fc_lport_add_fc4_type(struct fc_lport *lport, enum fc_fh_type type) +{ + __be32 *mp; + + mp = &lport->fcts.ff_type_map[type / FC_NS_BPW]; + *mp = htonl(ntohl(*mp) | 1UL << (type % FC_NS_BPW)); +} + +/** + * fc_lport_recv_rlir_req - Handle received Registered Link Incident Report. + * @lport: Fibre Channel local port recieving the RLIR + * @sp: current sequence in the RLIR exchange + * @fp: RLIR request frame + * + * Locking Note: The lport lock is exected to be held before calling + * this function. + */ +static void fc_lport_recv_rlir_req(struct fc_seq *sp, struct fc_frame *fp, + struct fc_lport *lport) +{ + FC_DEBUG_LPORT("Received RLIR request while in state %s\n", + fc_lport_state(lport)); + + lport->tt.seq_els_rsp_send(sp, ELS_LS_ACC, NULL); + fc_frame_free(fp); +} + +/** + * fc_lport_recv_echo_req - Handle received ECHO request + * @lport: Fibre Channel local port recieving the ECHO + * @sp: current sequence in the ECHO exchange + * @fp: ECHO request frame + * + * Locking Note: The lport lock is exected to be held before calling + * this function. + */ +static void fc_lport_recv_echo_req(struct fc_seq *sp, struct fc_frame *in_fp, + struct fc_lport *lport) +{ + struct fc_frame *fp; + struct fc_exch *ep = fc_seq_exch(sp); + unsigned int len; + void *pp; + void *dp; + u32 f_ctl; + + FC_DEBUG_LPORT("Received RLIR request while in state %s\n", + fc_lport_state(lport)); + + len = fr_len(in_fp) - sizeof(struct fc_frame_header); + pp = fc_frame_payload_get(in_fp, len); + + if (len < sizeof(__be32)) + len = sizeof(__be32); + + fp = fc_frame_alloc(lport, len); + if (fp) { + dp = fc_frame_payload_get(fp, len); + memcpy(dp, pp, len); + *((u32 *)dp) = htonl(ELS_LS_ACC << 24); + sp = lport->tt.seq_start_next(sp); + f_ctl = FC_FC_EX_CTX | FC_FC_LAST_SEQ | FC_FC_END_SEQ; + fc_fill_fc_hdr(fp, FC_RCTL_ELS_REP, ep->did, ep->sid, + FC_TYPE_ELS, f_ctl, 0); + lport->tt.seq_send(lport, sp, fp); + } + fc_frame_free(in_fp); +} + +/** + * fc_lport_recv_echo_req - Handle received Request Node ID data request + * @lport: Fibre Channel local port recieving the RNID + * @sp: current sequence in the RNID exchange + * @fp: RNID request frame + * + * Locking Note: The lport lock is exected to be held before calling + * this function. + */ +static void fc_lport_recv_rnid_req(struct fc_seq *sp, struct fc_frame *in_fp, + struct fc_lport *lport) +{ + struct fc_frame *fp; + struct fc_exch *ep = fc_seq_exch(sp); + struct fc_els_rnid *req; + struct { + struct fc_els_rnid_resp rnid; + struct fc_els_rnid_cid cid; + struct fc_els_rnid_gen gen; + } *rp; + struct fc_seq_els_data rjt_data; + u8 fmt; + size_t len; + u32 f_ctl; + + FC_DEBUG_LPORT("Received RNID request while in state %s\n", + fc_lport_state(lport)); + + req = fc_frame_payload_get(in_fp, sizeof(*req)); + if (!req) { + rjt_data.fp = NULL; + rjt_data.reason = ELS_RJT_LOGIC; + rjt_data.explan = ELS_EXPL_NONE; + lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &rjt_data); + } else { + fmt = req->rnid_fmt; + len = sizeof(*rp); + if (fmt != ELS_RNIDF_GEN || + ntohl(lport->rnid_gen.rnid_atype) == 0) { + fmt = ELS_RNIDF_NONE; /* nothing to provide */ + len -= sizeof(rp->gen); + } + fp = fc_frame_alloc(lport, len); + if (fp) { + rp = fc_frame_payload_get(fp, len); + memset(rp, 0, len); + rp->rnid.rnid_cmd = ELS_LS_ACC; + rp->rnid.rnid_fmt = fmt; + rp->rnid.rnid_cid_len = sizeof(rp->cid); + rp->cid.rnid_wwpn = htonll(lport->wwpn); + rp->cid.rnid_wwnn = htonll(lport->wwnn); + if (fmt == ELS_RNIDF_GEN) { + rp->rnid.rnid_sid_len = sizeof(rp->gen); + memcpy(&rp->gen, &lport->rnid_gen, + sizeof(rp->gen)); + } + sp = lport->tt.seq_start_next(sp); + f_ctl = FC_FC_EX_CTX | FC_FC_LAST_SEQ; + f_ctl |= FC_FC_END_SEQ | FC_FC_SEQ_INIT; + fc_fill_fc_hdr(fp, FC_RCTL_ELS_REP, ep->did, ep->sid, + FC_TYPE_ELS, f_ctl, 0); + lport->tt.seq_send(lport, sp, fp); + } + } + fc_frame_free(in_fp); +} + +/** + * fc_lport_recv_adisc_req - Handle received Address Discovery Request + * @lport: Fibre Channel local port recieving the ADISC + * @sp: current sequence in the ADISC exchange + * @fp: ADISC request frame + * + * Locking Note: The lport lock is expected to be held before calling + * this function. + */ +static void fc_lport_recv_adisc_req(struct fc_seq *sp, struct fc_frame *in_fp, + struct fc_lport *lport) +{ + struct fc_frame *fp; + struct fc_exch *ep = fc_seq_exch(sp); + struct fc_els_adisc *req, *rp; + struct fc_seq_els_data rjt_data; + size_t len; + u32 f_ctl; + + FC_DEBUG_LPORT("Received ADISC request while in state %s\n", + fc_lport_state(lport)); + + req = fc_frame_payload_get(in_fp, sizeof(*req)); + if (!req) { + rjt_data.fp = NULL; + rjt_data.reason = ELS_RJT_LOGIC; + rjt_data.explan = ELS_EXPL_NONE; + lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &rjt_data); + } else { + len = sizeof(*rp); + fp = fc_frame_alloc(lport, len); + if (fp) { + rp = fc_frame_payload_get(fp, len); + memset(rp, 0, len); + rp->adisc_cmd = ELS_LS_ACC; + rp->adisc_wwpn = htonll(lport->wwpn); + rp->adisc_wwnn = htonll(lport->wwnn); + hton24(rp->adisc_port_id, + fc_host_port_id(lport->host)); + sp = lport->tt.seq_start_next(sp); + f_ctl = FC_FC_EX_CTX | FC_FC_LAST_SEQ; + f_ctl |= FC_FC_END_SEQ | FC_FC_SEQ_INIT; + fc_fill_fc_hdr(fp, FC_RCTL_ELS_REP, ep->did, ep->sid, + FC_TYPE_ELS, f_ctl, 0); + lport->tt.seq_send(lport, sp, fp); + } + } + fc_frame_free(in_fp); +} + +/** + * fc_lport_recv_logo_req - Handle received fabric LOGO request + * @lport: Fibre Channel local port recieving the LOGO + * @sp: current sequence in the LOGO exchange + * @fp: LOGO request frame + * + * Locking Note: The lport lock is exected to be held before calling + * this function. + */ +static void fc_lport_recv_logo_req(struct fc_seq *sp, struct fc_frame *fp, + struct fc_lport *lport) +{ + lport->tt.seq_els_rsp_send(sp, ELS_LS_ACC, NULL); + fc_lport_enter_reset(lport); + fc_frame_free(fp); +} + +/** + * fc_fabric_login - Start the lport state machine + * @lport: The lport that should log into the fabric + * + * Locking Note: This function should not be called + * with the lport lock held. + */ +int fc_fabric_login(struct fc_lport *lport) +{ + int rc = -1; + + mutex_lock(&lport->lp_mutex); + if (lport->state == LPORT_ST_NONE) { + fc_lport_enter_reset(lport); + rc = 0; + } + mutex_unlock(&lport->lp_mutex); + + return rc; +} +EXPORT_SYMBOL(fc_fabric_login); + +/** + * fc_linkup - Handler for transport linkup events + * @lport: The lport whose link is up + */ +void fc_linkup(struct fc_lport *lport) +{ + FC_DEBUG_LPORT("Link is up for port (%6x)\n", + fc_host_port_id(lport->host)); + + mutex_lock(&lport->lp_mutex); + if ((lport->link_status & FC_LINK_UP) != FC_LINK_UP) { + lport->link_status |= FC_LINK_UP; + + if (lport->state == LPORT_ST_RESET) + fc_lport_enter_flogi(lport); + } + mutex_unlock(&lport->lp_mutex); +} +EXPORT_SYMBOL(fc_linkup); + +/** + * fc_linkdown - Handler for transport linkdown events + * @lport: The lport whose link is down + */ +void fc_linkdown(struct fc_lport *lport) +{ + mutex_lock(&lport->lp_mutex); + FC_DEBUG_LPORT("Link is down for port (%6x)\n", + fc_host_port_id(lport->host)); + + if ((lport->link_status & FC_LINK_UP) == FC_LINK_UP) { + lport->link_status &= ~(FC_LINK_UP); + fc_lport_enter_reset(lport); + lport->tt.fcp_cleanup(lport); + } + mutex_unlock(&lport->lp_mutex); +} +EXPORT_SYMBOL(fc_linkdown); + +/** + * fc_pause - Pause the flow of frames + * @lport: The lport to be paused + */ +void fc_pause(struct fc_lport *lport) +{ + mutex_lock(&lport->lp_mutex); + lport->link_status |= FC_PAUSE; + mutex_unlock(&lport->lp_mutex); +} +EXPORT_SYMBOL(fc_pause); + +/** + * fc_unpause - Unpause the flow of frames + * @lport: The lport to be unpaused + */ +void fc_unpause(struct fc_lport *lport) +{ + mutex_lock(&lport->lp_mutex); + lport->link_status &= ~(FC_PAUSE); + mutex_unlock(&lport->lp_mutex); +} +EXPORT_SYMBOL(fc_unpause); + +/** + * fc_fabric_logoff - Logout of the fabric + * @lport: fc_lport pointer to logoff the fabric + * + * Return value: + * 0 for success, -1 for failure + **/ +int fc_fabric_logoff(struct fc_lport *lport) +{ + lport->tt.disc_stop_final(lport); + mutex_lock(&lport->lp_mutex); + fc_lport_enter_logo(lport); + mutex_unlock(&lport->lp_mutex); + return 0; +} +EXPORT_SYMBOL(fc_fabric_logoff); + +/** + * fc_lport_destroy - unregister a fc_lport + * @lport: fc_lport pointer to unregister + * + * Return value: + * None + * Note: + * exit routine for fc_lport instance + * clean-up all the allocated memory + * and free up other system resources. + * + **/ +int fc_lport_destroy(struct fc_lport *lport) +{ + lport->tt.frame_send = fc_frame_drop; + lport->tt.fcp_abort_io(lport); + lport->tt.exch_mgr_reset(lport->emp, 0, 0); + return 0; +} +EXPORT_SYMBOL(fc_lport_destroy); + +/** + * fc_set_mfs - sets up the mfs for the corresponding fc_lport + * @lport: fc_lport pointer to unregister + * @mfs: the new mfs for fc_lport + * + * Set mfs for the given fc_lport to the new mfs. + * + * Return: 0 for success + * + **/ +int fc_set_mfs(struct fc_lport *lport, u32 mfs) +{ + unsigned int old_mfs; + int rc = -EINVAL; + + mutex_lock(&lport->lp_mutex); + + old_mfs = lport->mfs; + + if (mfs >= FC_MIN_MAX_FRAME) { + mfs &= ~3; + if (mfs > FC_MAX_FRAME) + mfs = FC_MAX_FRAME; + mfs -= sizeof(struct fc_frame_header); + lport->mfs = mfs; + rc = 0; + } + + if (!rc && mfs < old_mfs) + fc_lport_enter_reset(lport); + + mutex_unlock(&lport->lp_mutex); + + return rc; +} +EXPORT_SYMBOL(fc_set_mfs); + +/** + * fc_lport_disc_callback - Callback for discovery events + * @lport: FC local port + * @event: The discovery event + */ +void fc_lport_disc_callback(struct fc_lport *lport, enum fc_disc_event event) +{ + switch (event) { + case DISC_EV_SUCCESS: + FC_DEBUG_LPORT("Got a SUCCESS event for port (%6x)\n", + fc_host_port_id(lport->host)); + break; + case DISC_EV_FAILED: + FC_DEBUG_LPORT("Got a FAILED event for port (%6x)\n", + fc_host_port_id(lport->host)); + mutex_lock(&lport->lp_mutex); + fc_lport_enter_reset(lport); + mutex_unlock(&lport->lp_mutex); + break; + case DISC_EV_NONE: + WARN_ON(1); + break; + } +} + +/** + * fc_rport_enter_ready - Enter the ready state and start discovery + * @lport: Fibre Channel local port that is ready + * + * Locking Note: The lport lock is expected to be held before calling + * this routine. + */ +static void fc_lport_enter_ready(struct fc_lport *lport) +{ + FC_DEBUG_LPORT("Port (%6x) entered Ready from state %s\n", + fc_host_port_id(lport->host), fc_lport_state(lport)); + + fc_lport_state_enter(lport, LPORT_ST_READY); + + lport->tt.disc_start(fc_lport_disc_callback, lport); +} + +/** + * fc_lport_recv_flogi_req - Receive a FLOGI request + * @sp_in: The sequence the FLOGI is on + * @rx_fp: The frame the FLOGI is in + * @lport: The lport that recieved the request + * + * A received FLOGI request indicates a point-to-point connection. + * Accept it with the common service parameters indicating our N port. + * Set up to do a PLOGI if we have the higher-number WWPN. + * + * Locking Note: The lport lock is exected to be held before calling + * this function. + */ +static void fc_lport_recv_flogi_req(struct fc_seq *sp_in, + struct fc_frame *rx_fp, + struct fc_lport *lport) +{ + struct fc_frame *fp; + struct fc_frame_header *fh; + struct fc_seq *sp; + struct fc_exch *ep; + struct fc_els_flogi *flp; + struct fc_els_flogi *new_flp; + u64 remote_wwpn; + u32 remote_fid; + u32 local_fid; + u32 f_ctl; + + FC_DEBUG_LPORT("Received FLOGI request while in state %s\n", + fc_lport_state(lport)); + + fh = fc_frame_header_get(rx_fp); + remote_fid = ntoh24(fh->fh_s_id); + flp = fc_frame_payload_get(rx_fp, sizeof(*flp)); + if (!flp) + goto out; + remote_wwpn = get_unaligned_be64(&flp->fl_wwpn); + if (remote_wwpn == lport->wwpn) { + FC_DBG("FLOGI from port with same WWPN %llx " + "possible configuration error\n", remote_wwpn); + goto out; + } + FC_DBG("FLOGI from port WWPN %llx\n", remote_wwpn); + + /* + * XXX what is the right thing to do for FIDs? + * The originator might expect our S_ID to be 0xfffffe. + * But if so, both of us could end up with the same FID. + */ + local_fid = FC_LOCAL_PTP_FID_LO; + if (remote_wwpn < lport->wwpn) { + local_fid = FC_LOCAL_PTP_FID_HI; + if (!remote_fid || remote_fid == local_fid) + remote_fid = FC_LOCAL_PTP_FID_LO; + } else if (!remote_fid) { + remote_fid = FC_LOCAL_PTP_FID_HI; + } + + fc_host_port_id(lport->host) = local_fid; + + fp = fc_frame_alloc(lport, sizeof(*flp)); + if (fp) { + sp = lport->tt.seq_start_next(fr_seq(rx_fp)); + new_flp = fc_frame_payload_get(fp, sizeof(*flp)); + fc_lport_flogi_fill(lport, new_flp, ELS_FLOGI); + new_flp->fl_cmd = (u8) ELS_LS_ACC; + + /* + * Send the response. If this fails, the originator should + * repeat the sequence. + */ + f_ctl = FC_FC_EX_CTX | FC_FC_LAST_SEQ | FC_FC_END_SEQ; + ep = fc_seq_exch(sp); + fc_fill_fc_hdr(fp, FC_RCTL_ELS_REP, ep->did, ep->sid, + FC_TYPE_ELS, f_ctl, 0); + lport->tt.seq_send(lport, sp, fp); + + } else { + fc_lport_error(lport, fp); + } + fc_lport_ptp_setup(lport, remote_fid, remote_wwpn, + get_unaligned_be64(&flp->fl_wwnn)); + + lport->tt.disc_start(fc_lport_disc_callback, lport); + +out: + sp = fr_seq(rx_fp); + fc_frame_free(rx_fp); +} + +/** + * fc_lport_recv_req - The generic lport request handler + * @lport: The lport that received the request + * @sp: The sequence the request is on + * @fp: The frame the request is in + * + * This function will see if the lport handles the request or + * if an rport should handle the request. + * + * Locking Note: This function should not be called with the lport + * lock held becuase it will grab the lock. + */ +static void fc_lport_recv_req(struct fc_lport *lport, struct fc_seq *sp, + struct fc_frame *fp) +{ + struct fc_frame_header *fh = fc_frame_header_get(fp); + void (*recv) (struct fc_seq *, struct fc_frame *, struct fc_lport *); + struct fc_rport *rport; + u32 s_id; + u32 d_id; + struct fc_seq_els_data rjt_data; + + mutex_lock(&lport->lp_mutex); + + /* + * Handle special ELS cases like FLOGI, LOGO, and + * RSCN here. These don't require a session. + * Even if we had a session, it might not be ready. + */ + if (fh->fh_type == FC_TYPE_ELS && fh->fh_r_ctl == FC_RCTL_ELS_REQ) { + /* + * Check opcode. + */ + recv = NULL; + switch (fc_frame_payload_op(fp)) { + case ELS_FLOGI: + recv = fc_lport_recv_flogi_req; + break; + case ELS_LOGO: + fh = fc_frame_header_get(fp); + if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) + recv = fc_lport_recv_logo_req; + break; + case ELS_RSCN: + recv = lport->tt.disc_recv_req; + break; + case ELS_ECHO: + recv = fc_lport_recv_echo_req; + break; + case ELS_RLIR: + recv = fc_lport_recv_rlir_req; + break; + case ELS_RNID: + recv = fc_lport_recv_rnid_req; + break; + case ELS_ADISC: + recv = fc_lport_recv_adisc_req; + break; + } + + if (recv) + recv(sp, fp, lport); + else { + /* + * Find session. + * If this is a new incoming PLOGI, we won't find it. + */ + s_id = ntoh24(fh->fh_s_id); + d_id = ntoh24(fh->fh_d_id); + + rport = lport->tt.rport_lookup(lport, s_id); + if (rport) + lport->tt.rport_recv_req(sp, fp, rport); + else { + rjt_data.fp = NULL; + rjt_data.reason = ELS_RJT_UNAB; + rjt_data.explan = ELS_EXPL_NONE; + lport->tt.seq_els_rsp_send(sp, + ELS_LS_RJT, + &rjt_data); + fc_frame_free(fp); + } + } + } else { + FC_DBG("dropping invalid frame (eof %x)\n", fr_eof(fp)); + fc_frame_free(fp); + } + mutex_unlock(&lport->lp_mutex); + + /* + * The common exch_done for all request may not be good + * if any request requires longer hold on exhange. XXX + */ + lport->tt.exch_done(sp); +} + +/** + * fc_lport_reset - Reset an lport + * @lport: The lport which should be reset + * + * Locking Note: This functions should not be called with the + * lport lock held. + */ +int fc_lport_reset(struct fc_lport *lport) +{ + mutex_lock(&lport->lp_mutex); + fc_lport_enter_reset(lport); + mutex_unlock(&lport->lp_mutex); + return 0; +} +EXPORT_SYMBOL(fc_lport_reset); + +/** + * fc_rport_enter_reset - Reset the local port + * @lport: Fibre Channel local port to be reset + * + * Locking Note: The lport lock is expected to be held before calling + * this routine. + */ +static void fc_lport_enter_reset(struct fc_lport *lport) +{ + FC_DEBUG_LPORT("Port (%6x) entered RESET state from %s state\n", + fc_host_port_id(lport->host), fc_lport_state(lport)); + + fc_lport_state_enter(lport, LPORT_ST_RESET); + + if (lport->dns_rp) + lport->tt.rport_logoff(lport->dns_rp); + + if (lport->ptp_rp) { + lport->tt.rport_logoff(lport->ptp_rp); + lport->ptp_rp = NULL; + } + + lport->tt.disc_stop(lport); + + lport->tt.exch_mgr_reset(lport->emp, 0, 0); + fc_host_fabric_name(lport->host) = 0; + fc_host_port_id(lport->host) = 0; + + if ((lport->link_status & FC_LINK_UP) == FC_LINK_UP) + fc_lport_enter_flogi(lport); +} + +/** + * fc_lport_error - Handler for any errors + * @lport: The fc_lport object + * @fp: The frame pointer + * + * If the error was caused by a resource allocation failure + * then wait for half a second and retry, otherwise retry + * after the e_d_tov time. + */ +static void fc_lport_error(struct fc_lport *lport, struct fc_frame *fp) +{ + unsigned long delay = 0; + FC_DEBUG_LPORT("Error %ld in state %s, retries %d\n", + PTR_ERR(fp), fc_lport_state(lport), + lport->retry_count); + + if (!fp || PTR_ERR(fp) == -FC_EX_TIMEOUT) { + /* + * Memory allocation failure, or the exchange timed out. + * Retry after delay + */ + if (lport->retry_count < lport->max_retry_count) { + lport->retry_count++; + if (!fp) + delay = msecs_to_jiffies(500); + else + delay = msecs_to_jiffies(lport->e_d_tov); + + schedule_delayed_work(&lport->retry_work, delay); + } else { + switch (lport->state) { + case LPORT_ST_NONE: + case LPORT_ST_READY: + case LPORT_ST_RESET: + case LPORT_ST_RPN_ID: + case LPORT_ST_RFT_ID: + case LPORT_ST_SCR: + case LPORT_ST_DNS: + case LPORT_ST_FLOGI: + case LPORT_ST_LOGO: + fc_lport_enter_reset(lport); + break; + } + } + } +} + +/** + * fc_lport_rft_id_resp - Handle response to Register Fibre + * Channel Types by ID (RPN_ID) request + * @sp: current sequence in RPN_ID exchange + * @fp: response frame + * @lp_arg: Fibre Channel host port instance + * + * Locking Note: This function will be called without the lport lock + * held, but it will lock, call an _enter_* function or fc_lport_error + * and then unlock the lport. + */ +static void fc_lport_rft_id_resp(struct fc_seq *sp, struct fc_frame *fp, + void *lp_arg) +{ + struct fc_lport *lport = lp_arg; + struct fc_frame_header *fh; + struct fc_ct_hdr *ct; + + if (fp == ERR_PTR(-FC_EX_CLOSED)) + return; + + mutex_lock(&lport->lp_mutex); + + FC_DEBUG_LPORT("Received a RFT_ID response\n"); + + if (lport->state != LPORT_ST_RFT_ID) { + FC_DBG("Received a RFT_ID response, but in state %s\n", + fc_lport_state(lport)); + goto out; + } + + if (IS_ERR(fp)) { + fc_lport_error(lport, fp); + goto err; + } + + fh = fc_frame_header_get(fp); + ct = fc_frame_payload_get(fp, sizeof(*ct)); + + if (fh && ct && fh->fh_type == FC_TYPE_CT && + ct->ct_fs_type == FC_FST_DIR && + ct->ct_fs_subtype == FC_NS_SUBTYPE && + ntohs(ct->ct_cmd) == FC_FS_ACC) + fc_lport_enter_scr(lport); + else + fc_lport_error(lport, fp); +out: + fc_frame_free(fp); +err: + mutex_unlock(&lport->lp_mutex); +} + +/** + * fc_lport_rpn_id_resp - Handle response to Register Port + * Name by ID (RPN_ID) request + * @sp: current sequence in RPN_ID exchange + * @fp: response frame + * @lp_arg: Fibre Channel host port instance + * + * Locking Note: This function will be called without the lport lock + * held, but it will lock, call an _enter_* function or fc_lport_error + * and then unlock the lport. + */ +static void fc_lport_rpn_id_resp(struct fc_seq *sp, struct fc_frame *fp, + void *lp_arg) +{ + struct fc_lport *lport = lp_arg; + struct fc_frame_header *fh; + struct fc_ct_hdr *ct; + + if (fp == ERR_PTR(-FC_EX_CLOSED)) + return; + + mutex_lock(&lport->lp_mutex); + + FC_DEBUG_LPORT("Received a RPN_ID response\n"); + + if (lport->state != LPORT_ST_RPN_ID) { + FC_DBG("Received a RPN_ID response, but in state %s\n", + fc_lport_state(lport)); + goto out; + } + + if (IS_ERR(fp)) { + fc_lport_error(lport, fp); + goto err; + } + + fh = fc_frame_header_get(fp); + ct = fc_frame_payload_get(fp, sizeof(*ct)); + if (fh && ct && fh->fh_type == FC_TYPE_CT && + ct->ct_fs_type == FC_FST_DIR && + ct->ct_fs_subtype == FC_NS_SUBTYPE && + ntohs(ct->ct_cmd) == FC_FS_ACC) + fc_lport_enter_rft_id(lport); + else + fc_lport_error(lport, fp); + +out: + fc_frame_free(fp); +err: + mutex_unlock(&lport->lp_mutex); +} + +/** + * fc_lport_scr_resp - Handle response to State Change Register (SCR) request + * @sp: current sequence in SCR exchange + * @fp: response frame + * @lp_arg: Fibre Channel lport port instance that sent the registration request + * + * Locking Note: This function will be called without the lport lock + * held, but it will lock, call an _enter_* function or fc_lport_error + * and then unlock the lport. + */ +static void fc_lport_scr_resp(struct fc_seq *sp, struct fc_frame *fp, + void *lp_arg) +{ + struct fc_lport *lport = lp_arg; + u8 op; + + if (fp == ERR_PTR(-FC_EX_CLOSED)) + return; + + mutex_lock(&lport->lp_mutex); + + FC_DEBUG_LPORT("Received a SCR response\n"); + + if (lport->state != LPORT_ST_SCR) { + FC_DBG("Received a SCR response, but in state %s\n", + fc_lport_state(lport)); + goto out; + } + + if (IS_ERR(fp)) { + fc_lport_error(lport, fp); + goto err; + } + + op = fc_frame_payload_op(fp); + if (op == ELS_LS_ACC) + fc_lport_enter_ready(lport); + else + fc_lport_error(lport, fp); + +out: + fc_frame_free(fp); +err: + mutex_unlock(&lport->lp_mutex); +} + +/** + * fc_lport_enter_scr - Send a State Change Register (SCR) request + * @lport: Fibre Channel local port to register for state changes + * + * Locking Note: The lport lock is expected to be held before calling + * this routine. + */ +static void fc_lport_enter_scr(struct fc_lport *lport) +{ + struct fc_frame *fp; + + FC_DEBUG_LPORT("Port (%6x) entered SCR state from %s state\n", + fc_host_port_id(lport->host), fc_lport_state(lport)); + + fc_lport_state_enter(lport, LPORT_ST_SCR); + + fp = fc_frame_alloc(lport, sizeof(struct fc_els_scr)); + if (!fp) { + fc_lport_error(lport, fp); + return; + } + + if (!lport->tt.elsct_send(lport, NULL, fp, ELS_SCR, + fc_lport_scr_resp, lport, lport->e_d_tov)) + fc_lport_error(lport, fp); +} + +/** + * fc_lport_enter_rft_id - Register FC4-types with the name server + * @lport: Fibre Channel local port to register + * + * Locking Note: The lport lock is expected to be held before calling + * this routine. + */ +static void fc_lport_enter_rft_id(struct fc_lport *lport) +{ + struct fc_frame *fp; + struct fc_ns_fts *lps; + int i; + + FC_DEBUG_LPORT("Port (%6x) entered RFT_ID state from %s state\n", + fc_host_port_id(lport->host), fc_lport_state(lport)); + + fc_lport_state_enter(lport, LPORT_ST_RFT_ID); + + lps = &lport->fcts; + i = sizeof(lps->ff_type_map) / sizeof(lps->ff_type_map[0]); + while (--i >= 0) + if (ntohl(lps->ff_type_map[i]) != 0) + break; + if (i < 0) { + /* nothing to register, move on to SCR */ + fc_lport_enter_scr(lport); + return; + } + + fp = fc_frame_alloc(lport, sizeof(struct fc_ct_hdr) + + sizeof(struct fc_ns_rft)); + if (!fp) { + fc_lport_error(lport, fp); + return; + } + + if (!lport->tt.elsct_send(lport, NULL, fp, FC_NS_RFT_ID, + fc_lport_rft_id_resp, + lport, lport->e_d_tov)) + fc_lport_error(lport, fp); +} + +/** + * fc_rport_enter_rft_id - Register port name with the name server + * @lport: Fibre Channel local port to register + * + * Locking Note: The lport lock is expected to be held before calling + * this routine. + */ +static void fc_lport_enter_rpn_id(struct fc_lport *lport) +{ + struct fc_frame *fp; + + FC_DEBUG_LPORT("Port (%6x) entered RPN_ID state from %s state\n", + fc_host_port_id(lport->host), fc_lport_state(lport)); + + fc_lport_state_enter(lport, LPORT_ST_RPN_ID); + + fp = fc_frame_alloc(lport, sizeof(struct fc_ct_hdr) + + sizeof(struct fc_ns_rn_id)); + if (!fp) { + fc_lport_error(lport, fp); + return; + } + + if (!lport->tt.elsct_send(lport, NULL, fp, FC_NS_RPN_ID, + fc_lport_rpn_id_resp, + lport, lport->e_d_tov)) + fc_lport_error(lport, fp); +} + +static struct fc_rport_operations fc_lport_rport_ops = { + .event_callback = fc_lport_rport_callback, +}; + +/** + * fc_rport_enter_dns - Create a rport to the name server + * @lport: Fibre Channel local port requesting a rport for the name server + * + * Locking Note: The lport lock is expected to be held before calling + * this routine. + */ +static void fc_lport_enter_dns(struct fc_lport *lport) +{ + struct fc_rport *rport; + struct fc_rport_libfc_priv *rdata; + struct fc_disc_port dp; + + dp.ids.port_id = FC_FID_DIR_SERV; + dp.ids.port_name = -1; + dp.ids.node_name = -1; + dp.ids.roles = FC_RPORT_ROLE_UNKNOWN; + dp.lp = lport; + + FC_DEBUG_LPORT("Port (%6x) entered DNS state from %s state\n", + fc_host_port_id(lport->host), fc_lport_state(lport)); + + fc_lport_state_enter(lport, LPORT_ST_DNS); + + rport = fc_rport_rogue_create(&dp); + if (!rport) + goto err; + + rdata = rport->dd_data; + rdata->ops = &fc_lport_rport_ops; + lport->tt.rport_login(rport); + return; + +err: + fc_lport_error(lport, NULL); +} + +/** + * fc_lport_timeout - Handler for the retry_work timer. + * @work: The work struct of the fc_lport + */ +static void fc_lport_timeout(struct work_struct *work) +{ + struct fc_lport *lport = + container_of(work, struct fc_lport, + retry_work.work); + + mutex_lock(&lport->lp_mutex); + + switch (lport->state) { + case LPORT_ST_NONE: + case LPORT_ST_READY: + case LPORT_ST_RESET: + WARN_ON(1); + break; + case LPORT_ST_FLOGI: + fc_lport_enter_flogi(lport); + break; + case LPORT_ST_DNS: + fc_lport_enter_dns(lport); + break; + case LPORT_ST_RPN_ID: + fc_lport_enter_rpn_id(lport); + break; + case LPORT_ST_RFT_ID: + fc_lport_enter_rft_id(lport); + break; + case LPORT_ST_SCR: + fc_lport_enter_scr(lport); + break; + case LPORT_ST_LOGO: + fc_lport_enter_logo(lport); + break; + } + + mutex_unlock(&lport->lp_mutex); +} + +/** + * fc_lport_logo_resp - Handle response to LOGO request + * @sp: current sequence in LOGO exchange + * @fp: response frame + * @lp_arg: Fibre Channel lport port instance that sent the LOGO request + * + * Locking Note: This function will be called without the lport lock + * held, but it will lock, call an _enter_* function or fc_lport_error + * and then unlock the lport. + */ +static void fc_lport_logo_resp(struct fc_seq *sp, struct fc_frame *fp, + void *lp_arg) +{ + struct fc_lport *lport = lp_arg; + u8 op; + + if (fp == ERR_PTR(-FC_EX_CLOSED)) + return; + + mutex_lock(&lport->lp_mutex); + + FC_DEBUG_LPORT("Received a LOGO response\n"); + + if (lport->state != LPORT_ST_LOGO) { + FC_DBG("Received a LOGO response, but in state %s\n", + fc_lport_state(lport)); + goto out; + } + + if (IS_ERR(fp)) { + fc_lport_error(lport, fp); + goto err; + } + + op = fc_frame_payload_op(fp); + if (op == ELS_LS_ACC) + fc_lport_enter_reset(lport); + else + fc_lport_error(lport, fp); + +out: + fc_frame_free(fp); +err: + mutex_unlock(&lport->lp_mutex); +} + +/** + * fc_rport_enter_logo - Logout of the fabric + * @lport: Fibre Channel local port to be logged out + * + * Locking Note: The lport lock is expected to be held before calling + * this routine. + */ +static void fc_lport_enter_logo(struct fc_lport *lport) +{ + struct fc_frame *fp; + struct fc_els_logo *logo; + + FC_DEBUG_LPORT("Port (%6x) entered LOGO state from %s state\n", + fc_host_port_id(lport->host), fc_lport_state(lport)); + + fc_lport_state_enter(lport, LPORT_ST_LOGO); + + /* DNS session should be closed so we can release it here */ + if (lport->dns_rp) + lport->tt.rport_logoff(lport->dns_rp); + + fp = fc_frame_alloc(lport, sizeof(*logo)); + if (!fp) { + fc_lport_error(lport, fp); + return; + } + + if (!lport->tt.elsct_send(lport, NULL, fp, ELS_LOGO, fc_lport_logo_resp, + lport, lport->e_d_tov)) + fc_lport_error(lport, fp); +} + +/** + * fc_lport_flogi_resp - Handle response to FLOGI request + * @sp: current sequence in FLOGI exchange + * @fp: response frame + * @lp_arg: Fibre Channel lport port instance that sent the FLOGI request + * + * Locking Note: This function will be called without the lport lock + * held, but it will lock, call an _enter_* function or fc_lport_error + * and then unlock the lport. + */ +static void fc_lport_flogi_resp(struct fc_seq *sp, struct fc_frame *fp, + void *lp_arg) +{ + struct fc_lport *lport = lp_arg; + struct fc_frame_header *fh; + struct fc_els_flogi *flp; + u32 did; + u16 csp_flags; + unsigned int r_a_tov; + unsigned int e_d_tov; + u16 mfs; + + if (fp == ERR_PTR(-FC_EX_CLOSED)) + return; + + mutex_lock(&lport->lp_mutex); + + FC_DEBUG_LPORT("Received a FLOGI response\n"); + + if (lport->state != LPORT_ST_FLOGI) { + FC_DBG("Received a FLOGI response, but in state %s\n", + fc_lport_state(lport)); + goto out; + } + + if (IS_ERR(fp)) { + fc_lport_error(lport, fp); + goto err; + } + + fh = fc_frame_header_get(fp); + did = ntoh24(fh->fh_d_id); + if (fc_frame_payload_op(fp) == ELS_LS_ACC && did != 0) { + + FC_DEBUG_LPORT("Assigned fid %x\n", did); + fc_host_port_id(lport->host) = did; + + flp = fc_frame_payload_get(fp, sizeof(*flp)); + if (flp) { + mfs = ntohs(flp->fl_csp.sp_bb_data) & + FC_SP_BB_DATA_MASK; + if (mfs >= FC_SP_MIN_MAX_PAYLOAD && + mfs < lport->mfs) + lport->mfs = mfs; + csp_flags = ntohs(flp->fl_csp.sp_features); + r_a_tov = ntohl(flp->fl_csp.sp_r_a_tov); + e_d_tov = ntohl(flp->fl_csp.sp_e_d_tov); + if (csp_flags & FC_SP_FT_EDTR) + e_d_tov /= 1000000; + if ((csp_flags & FC_SP_FT_FPORT) == 0) { + if (e_d_tov > lport->e_d_tov) + lport->e_d_tov = e_d_tov; + lport->r_a_tov = 2 * e_d_tov; + FC_DBG("Point-to-Point mode\n"); + fc_lport_ptp_setup(lport, ntoh24(fh->fh_s_id), + get_unaligned_be64( + &flp->fl_wwpn), + get_unaligned_be64( + &flp->fl_wwnn)); + } else { + lport->e_d_tov = e_d_tov; + lport->r_a_tov = r_a_tov; + fc_host_fabric_name(lport->host) = + get_unaligned_be64(&flp->fl_wwnn); + fc_lport_enter_dns(lport); + } + } + + if (flp) { + csp_flags = ntohs(flp->fl_csp.sp_features); + if ((csp_flags & FC_SP_FT_FPORT) == 0) { + lport->tt.disc_start(fc_lport_disc_callback, + lport); + } + } + } else { + FC_DBG("bad FLOGI response\n"); + } + +out: + fc_frame_free(fp); +err: + mutex_unlock(&lport->lp_mutex); +} + +/** + * fc_rport_enter_flogi - Send a FLOGI request to the fabric manager + * @lport: Fibre Channel local port to be logged in to the fabric + * + * Locking Note: The lport lock is expected to be held before calling + * this routine. + */ +void fc_lport_enter_flogi(struct fc_lport *lport) +{ + struct fc_frame *fp; + + FC_DEBUG_LPORT("Processing FLOGI state\n"); + + fc_lport_state_enter(lport, LPORT_ST_FLOGI); + + fp = fc_frame_alloc(lport, sizeof(struct fc_els_flogi)); + if (!fp) + return fc_lport_error(lport, fp); + + if (!lport->tt.elsct_send(lport, NULL, fp, ELS_FLOGI, + fc_lport_flogi_resp, lport, lport->e_d_tov)) + fc_lport_error(lport, fp); +} + +/* Configure a fc_lport */ +int fc_lport_config(struct fc_lport *lport) +{ + INIT_DELAYED_WORK(&lport->retry_work, fc_lport_timeout); + mutex_init(&lport->lp_mutex); + + fc_lport_state_enter(lport, LPORT_ST_NONE); + + fc_lport_add_fc4_type(lport, FC_TYPE_FCP); + fc_lport_add_fc4_type(lport, FC_TYPE_CT); + + return 0; +} +EXPORT_SYMBOL(fc_lport_config); + +int fc_lport_init(struct fc_lport *lport) +{ + if (!lport->tt.lport_recv) + lport->tt.lport_recv = fc_lport_recv_req; + + if (!lport->tt.lport_reset) + lport->tt.lport_reset = fc_lport_reset; + + fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT; + fc_host_node_name(lport->host) = lport->wwnn; + fc_host_port_name(lport->host) = lport->wwpn; + fc_host_supported_classes(lport->host) = FC_COS_CLASS3; + memset(fc_host_supported_fc4s(lport->host), 0, + sizeof(fc_host_supported_fc4s(lport->host))); + fc_host_supported_fc4s(lport->host)[2] = 1; + fc_host_supported_fc4s(lport->host)[7] = 1; + + /* This value is also unchanging */ + memset(fc_host_active_fc4s(lport->host), 0, + sizeof(fc_host_active_fc4s(lport->host))); + fc_host_active_fc4s(lport->host)[2] = 1; + fc_host_active_fc4s(lport->host)[7] = 1; + fc_host_maxframe_size(lport->host) = lport->mfs; + fc_host_supported_speeds(lport->host) = 0; + if (lport->link_supported_speeds & FC_PORTSPEED_1GBIT) + fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_1GBIT; + if (lport->link_supported_speeds & FC_PORTSPEED_10GBIT) + fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_10GBIT; + + return 0; +} +EXPORT_SYMBOL(fc_lport_init); diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c new file mode 100644 index 0000000..e780d8c --- /dev/null +++ b/drivers/scsi/libfc/fc_rport.c @@ -0,0 +1,1291 @@ +/* + * Copyright(c) 2007 - 2008 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +/* + * RPORT GENERAL INFO + * + * This file contains all processing regarding fc_rports. It contains the + * rport state machine and does all rport interaction with the transport class. + * There should be no other places in libfc that interact directly with the + * transport class in regards to adding and deleting rports. + * + * fc_rport's represent N_Port's within the fabric. + */ + +/* + * RPORT LOCKING + * + * The rport should never hold the rport mutex and then attempt to acquire + * either the lport or disc mutexes. The rport's mutex is considered lesser + * than both the lport's mutex and the disc mutex. Refer to fc_lport.c for + * more comments on the heirarchy. + * + * The locking strategy is similar to the lport's strategy. The lock protects + * the rport's states and is held and released by the entry points to the rport + * block. All _enter_* functions correspond to rport states and expect the rport + * mutex to be locked before calling them. This means that rports only handle + * one request or response at a time, since they're not critical for the I/O + * path this potential over-use of the mutex is acceptable. + */ + +#include <linux/kernel.h> +#include <linux/spinlock.h> +#include <linux/interrupt.h> +#include <linux/rcupdate.h> +#include <linux/timer.h> +#include <linux/workqueue.h> +#include <asm/unaligned.h> + +#include <scsi/libfc.h> +#include <scsi/fc_encode.h> + +static int fc_rport_debug; + +#define FC_DEBUG_RPORT(fmt...) \ + do { \ + if (fc_rport_debug) \ + FC_DBG(fmt); \ + } while (0) + +struct workqueue_struct *rport_event_queue; + +static void fc_rport_enter_plogi(struct fc_rport *); +static void fc_rport_enter_prli(struct fc_rport *); +static void fc_rport_enter_rtv(struct fc_rport *); +static void fc_rport_enter_ready(struct fc_rport *); +static void fc_rport_enter_logo(struct fc_rport *); + +static void fc_rport_recv_plogi_req(struct fc_rport *, + struct fc_seq *, struct fc_frame *); +static void fc_rport_recv_prli_req(struct fc_rport *, + struct fc_seq *, struct fc_frame *); +static void fc_rport_recv_prlo_req(struct fc_rport *, + struct fc_seq *, struct fc_frame *); +static void fc_rport_recv_logo_req(struct fc_rport *, + struct fc_seq *, struct fc_frame *); +static void fc_rport_timeout(struct work_struct *); +static void fc_rport_error(struct fc_rport *, struct fc_frame *); +static void fc_rport_work(struct work_struct *); + +static const char *fc_rport_state_names[] = { + [RPORT_ST_NONE] = "None", + [RPORT_ST_INIT] = "Init", + [RPORT_ST_PLOGI] = "PLOGI", + [RPORT_ST_PRLI] = "PRLI", + [RPORT_ST_RTV] = "RTV", + [RPORT_ST_READY] = "Ready", + [RPORT_ST_LOGO] = "LOGO", +}; + +static void fc_rport_rogue_destroy(struct device *dev) +{ + struct fc_rport *rport = dev_to_rport(dev); + FC_DEBUG_RPORT("Destroying rogue rport (%6x)\n", rport->port_id); + kfree(rport); +} + +struct fc_rport *fc_rport_rogue_create(struct fc_disc_port *dp) +{ + struct fc_rport *rport; + struct fc_rport_libfc_priv *rdata; + rport = kzalloc(sizeof(*rport) + sizeof(*rdata), GFP_KERNEL); + + if (!rport) + return NULL; + + rdata = RPORT_TO_PRIV(rport); + + rport->dd_data = rdata; + rport->port_id = dp->ids.port_id; + rport->port_name = dp->ids.port_name; + rport->node_name = dp->ids.node_name; + rport->roles = dp->ids.roles; + rport->maxframe_size = FC_MIN_MAX_PAYLOAD; + /* + * Note: all this libfc rogue rport code will be removed for + * upstream so it fine that this is really ugly and hacky right now. + */ + device_initialize(&rport->dev); + rport->dev.release = fc_rport_rogue_destroy; + + mutex_init(&rdata->rp_mutex); + rdata->local_port = dp->lp; + rdata->trans_state = FC_PORTSTATE_ROGUE; + rdata->rp_state = RPORT_ST_INIT; + rdata->event = RPORT_EV_NONE; + rdata->flags = FC_RP_FLAGS_REC_SUPPORTED; + rdata->ops = NULL; + rdata->e_d_tov = dp->lp->e_d_tov; + rdata->r_a_tov = dp->lp->r_a_tov; + INIT_DELAYED_WORK(&rdata->retry_work, fc_rport_timeout); + INIT_WORK(&rdata->event_work, fc_rport_work); + /* + * For good measure, but not necessary as we should only + * add REAL rport to the lport list. + */ + INIT_LIST_HEAD(&rdata->peers); + + return rport; +} + +/** + * fc_rport_state - return a string for the state the rport is in + * @rport: The rport whose state we want to get a string for + */ +static const char *fc_rport_state(struct fc_rport *rport) +{ + const char *cp; + struct fc_rport_libfc_priv *rdata = rport->dd_data; + + cp = fc_rport_state_names[rdata->rp_state]; + if (!cp) + cp = "Unknown"; + return cp; +} + +/** + * fc_set_rport_loss_tmo - Set the remote port loss timeout in seconds. + * @rport: Pointer to Fibre Channel remote port structure + * @timeout: timeout in seconds + */ +void fc_set_rport_loss_tmo(struct fc_rport *rport, u32 timeout) +{ + if (timeout) + rport->dev_loss_tmo = timeout + 5; + else + rport->dev_loss_tmo = 30; +} +EXPORT_SYMBOL(fc_set_rport_loss_tmo); + +/** + * fc_plogi_get_maxframe - Get max payload from the common service parameters + * @flp: FLOGI payload structure + * @maxval: upper limit, may be less than what is in the service parameters + */ +static unsigned int +fc_plogi_get_maxframe(struct fc_els_flogi *flp, unsigned int maxval) +{ + unsigned int mfs; + + /* + * Get max payload from the common service parameters and the + * class 3 receive data field size. + */ + mfs = ntohs(flp->fl_csp.sp_bb_data) & FC_SP_BB_DATA_MASK; + if (mfs >= FC_SP_MIN_MAX_PAYLOAD && mfs < maxval) + maxval = mfs; + mfs = ntohs(flp->fl_cssp[3 - 1].cp_rdfs); + if (mfs >= FC_SP_MIN_MAX_PAYLOAD && mfs < maxval) + maxval = mfs; + return maxval; +} + +/** + * fc_rport_state_enter - Change the rport's state + * @rport: The rport whose state should change + * @new: The new state of the rport + * + * Locking Note: Called with the rport lock held + */ +static void fc_rport_state_enter(struct fc_rport *rport, + enum fc_rport_state new) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + if (rdata->rp_state != new) + rdata->retries = 0; + rdata->rp_state = new; +} + +static void fc_rport_work(struct work_struct *work) +{ + struct fc_rport_libfc_priv *rdata = + container_of(work, struct fc_rport_libfc_priv, event_work); + enum fc_rport_event event; + enum fc_rport_trans_state trans_state; + struct fc_lport *lport = rdata->local_port; + struct fc_rport_operations *rport_ops; + struct fc_rport *rport = PRIV_TO_RPORT(rdata); + + mutex_lock(&rdata->rp_mutex); + event = rdata->event; + rport_ops = rdata->ops; + + if (event == RPORT_EV_CREATED) { + struct fc_rport *new_rport; + struct fc_rport_libfc_priv *new_rdata; + struct fc_rport_identifiers ids; + + ids.port_id = rport->port_id; + ids.roles = rport->roles; + ids.port_name = rport->port_name; + ids.node_name = rport->node_name; + + mutex_unlock(&rdata->rp_mutex); + + new_rport = fc_remote_port_add(lport->host, 0, &ids); + if (new_rport) { + /* + * Switch from the rogue rport to the rport + * returned by the FC class. + */ + new_rport->maxframe_size = rport->maxframe_size; + + new_rdata = new_rport->dd_data; + new_rdata->e_d_tov = rdata->e_d_tov; + new_rdata->r_a_tov = rdata->r_a_tov; + new_rdata->ops = rdata->ops; + new_rdata->local_port = rdata->local_port; + new_rdata->flags = FC_RP_FLAGS_REC_SUPPORTED; + new_rdata->trans_state = FC_PORTSTATE_REAL; + mutex_init(&new_rdata->rp_mutex); + INIT_DELAYED_WORK(&new_rdata->retry_work, + fc_rport_timeout); + INIT_LIST_HEAD(&new_rdata->peers); + INIT_WORK(&new_rdata->event_work, fc_rport_work); + + fc_rport_state_enter(new_rport, RPORT_ST_READY); + } else { + FC_DBG("Failed to create the rport for port " + "(%6x).\n", ids.port_id); + event = RPORT_EV_FAILED; + } + put_device(&rport->dev); + rport = new_rport; + rdata = new_rport->dd_data; + if (rport_ops->event_callback) + rport_ops->event_callback(lport, rport, event); + } else if ((event == RPORT_EV_FAILED) || + (event == RPORT_EV_LOGO) || + (event == RPORT_EV_STOP)) { + trans_state = rdata->trans_state; + mutex_unlock(&rdata->rp_mutex); + if (rport_ops->event_callback) + rport_ops->event_callback(lport, rport, event); + if (trans_state == FC_PORTSTATE_ROGUE) + put_device(&rport->dev); + else + fc_remote_port_delete(rport); + } else + mutex_unlock(&rdata->rp_mutex); +} + +/** + * fc_rport_login - Start the remote port login state machine + * @rport: Fibre Channel remote port + * + * Locking Note: Called without the rport lock held. This + * function will hold the rport lock, call an _enter_* + * function and then unlock the rport. + */ +int fc_rport_login(struct fc_rport *rport) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + + mutex_lock(&rdata->rp_mutex); + + FC_DEBUG_RPORT("Login to port (%6x)\n", rport->port_id); + + fc_rport_enter_plogi(rport); + + mutex_unlock(&rdata->rp_mutex); + + return 0; +} + +/** + * fc_rport_logoff - Logoff and remove an rport + * @rport: Fibre Channel remote port to be removed + * + * Locking Note: Called without the rport lock held. This + * function will hold the rport lock, call an _enter_* + * function and then unlock the rport. + */ +int fc_rport_logoff(struct fc_rport *rport) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + + mutex_lock(&rdata->rp_mutex); + + FC_DEBUG_RPORT("Remove port (%6x)\n", rport->port_id); + + fc_rport_enter_logo(rport); + + /* + * Change the state to NONE so that we discard + * the response. + */ + fc_rport_state_enter(rport, RPORT_ST_NONE); + + mutex_unlock(&rdata->rp_mutex); + + cancel_delayed_work_sync(&rdata->retry_work); + + mutex_lock(&rdata->rp_mutex); + + rdata->event = RPORT_EV_STOP; + queue_work(rport_event_queue, &rdata->event_work); + + mutex_unlock(&rdata->rp_mutex); + + return 0; +} + +/** + * fc_rport_enter_ready - The rport is ready + * @rport: Fibre Channel remote port that is ready + * + * Locking Note: The rport lock is expected to be held before calling + * this routine. + */ +static void fc_rport_enter_ready(struct fc_rport *rport) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + + fc_rport_state_enter(rport, RPORT_ST_READY); + + FC_DEBUG_RPORT("Port (%6x) is Ready\n", rport->port_id); + + rdata->event = RPORT_EV_CREATED; + queue_work(rport_event_queue, &rdata->event_work); +} + +/** + * fc_rport_timeout - Handler for the retry_work timer. + * @work: The work struct of the fc_rport_libfc_priv + * + * Locking Note: Called without the rport lock held. This + * function will hold the rport lock, call an _enter_* + * function and then unlock the rport. + */ +static void fc_rport_timeout(struct work_struct *work) +{ + struct fc_rport_libfc_priv *rdata = + container_of(work, struct fc_rport_libfc_priv, retry_work.work); + struct fc_rport *rport = PRIV_TO_RPORT(rdata); + + mutex_lock(&rdata->rp_mutex); + + switch (rdata->rp_state) { + case RPORT_ST_PLOGI: + fc_rport_enter_plogi(rport); + break; + case RPORT_ST_PRLI: + fc_rport_enter_prli(rport); + break; + case RPORT_ST_RTV: + fc_rport_enter_rtv(rport); + break; + case RPORT_ST_LOGO: + fc_rport_enter_logo(rport); + break; + case RPORT_ST_READY: + case RPORT_ST_INIT: + case RPORT_ST_NONE: + break; + } + + mutex_unlock(&rdata->rp_mutex); + put_device(&rport->dev); +} + +/** + * fc_rport_error - Handler for any errors + * @rport: The fc_rport object + * @fp: The frame pointer + * + * If the error was caused by a resource allocation failure + * then wait for half a second and retry, otherwise retry + * immediately. + * + * Locking Note: The rport lock is expected to be held before + * calling this routine + */ +static void fc_rport_error(struct fc_rport *rport, struct fc_frame *fp) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + unsigned long delay = 0; + + FC_DEBUG_RPORT("Error %ld in state %s, retries %d\n", + PTR_ERR(fp), fc_rport_state(rport), rdata->retries); + + if (!fp || PTR_ERR(fp) == -FC_EX_TIMEOUT) { + /* + * Memory allocation failure, or the exchange timed out. + * Retry after delay + */ + if (rdata->retries < rdata->local_port->max_retry_count) { + rdata->retries++; + if (!fp) + delay = msecs_to_jiffies(500); + get_device(&rport->dev); + schedule_delayed_work(&rdata->retry_work, delay); + } else { + switch (rdata->rp_state) { + case RPORT_ST_PLOGI: + case RPORT_ST_PRLI: + case RPORT_ST_LOGO: + rdata->event = RPORT_EV_FAILED; + queue_work(rport_event_queue, + &rdata->event_work); + break; + case RPORT_ST_RTV: + fc_rport_enter_ready(rport); + break; + case RPORT_ST_NONE: + case RPORT_ST_READY: + case RPORT_ST_INIT: + break; + } + } + } +} + +/** + * fc_rport_plogi_recv_resp - Handle incoming ELS PLOGI response + * @sp: current sequence in the PLOGI exchange + * @fp: response frame + * @rp_arg: Fibre Channel remote port + * + * Locking Note: This function will be called without the rport lock + * held, but it will lock, call an _enter_* function or fc_rport_error + * and then unlock the rport. + */ +static void fc_rport_plogi_resp(struct fc_seq *sp, struct fc_frame *fp, + void *rp_arg) +{ + struct fc_rport *rport = rp_arg; + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_lport *lport = rdata->local_port; + struct fc_els_flogi *plp; + unsigned int tov; + u16 csp_seq; + u16 cssp_seq; + u8 op; + + mutex_lock(&rdata->rp_mutex); + + FC_DEBUG_RPORT("Received a PLOGI response from port (%6x)\n", + rport->port_id); + + if (rdata->rp_state != RPORT_ST_PLOGI) { + FC_DBG("Received a PLOGI response, but in state %s\n", + fc_rport_state(rport)); + goto out; + } + + if (IS_ERR(fp)) { + fc_rport_error(rport, fp); + goto err; + } + + op = fc_frame_payload_op(fp); + if (op == ELS_LS_ACC && + (plp = fc_frame_payload_get(fp, sizeof(*plp))) != NULL) { + rport->port_name = get_unaligned_be64(&plp->fl_wwpn); + rport->node_name = get_unaligned_be64(&plp->fl_wwnn); + + tov = ntohl(plp->fl_csp.sp_e_d_tov); + if (ntohs(plp->fl_csp.sp_features) & FC_SP_FT_EDTR) + tov /= 1000; + if (tov > rdata->e_d_tov) + rdata->e_d_tov = tov; + csp_seq = ntohs(plp->fl_csp.sp_tot_seq); + cssp_seq = ntohs(plp->fl_cssp[3 - 1].cp_con_seq); + if (cssp_seq < csp_seq) + csp_seq = cssp_seq; + rdata->max_seq = csp_seq; + rport->maxframe_size = + fc_plogi_get_maxframe(plp, lport->mfs); + + /* + * If the rport is one of the well known addresses + * we skip PRLI and RTV and go straight to READY. + */ + if (rport->port_id >= FC_FID_DOM_MGR) + fc_rport_enter_ready(rport); + else + fc_rport_enter_prli(rport); + } else + fc_rport_error(rport, fp); + +out: + fc_frame_free(fp); +err: + mutex_unlock(&rdata->rp_mutex); + put_device(&rport->dev); +} + +/** + * fc_rport_enter_plogi - Send Port Login (PLOGI) request to peer + * @rport: Fibre Channel remote port to send PLOGI to + * + * Locking Note: The rport lock is expected to be held before calling + * this routine. + */ +static void fc_rport_enter_plogi(struct fc_rport *rport) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_lport *lport = rdata->local_port; + struct fc_frame *fp; + + FC_DEBUG_RPORT("Port (%6x) entered PLOGI state from %s state\n", + rport->port_id, fc_rport_state(rport)); + + fc_rport_state_enter(rport, RPORT_ST_PLOGI); + + rport->maxframe_size = FC_MIN_MAX_PAYLOAD; + fp = fc_frame_alloc(lport, sizeof(struct fc_els_flogi)); + if (!fp) { + fc_rport_error(rport, fp); + return; + } + rdata->e_d_tov = lport->e_d_tov; + + if (!lport->tt.elsct_send(lport, rport, fp, ELS_PLOGI, + fc_rport_plogi_resp, rport, lport->e_d_tov)) + fc_rport_error(rport, fp); + else + get_device(&rport->dev); +} + +/** + * fc_rport_prli_resp - Process Login (PRLI) response handler + * @sp: current sequence in the PRLI exchange + * @fp: response frame + * @rp_arg: Fibre Channel remote port + * + * Locking Note: This function will be called without the rport lock + * held, but it will lock, call an _enter_* function or fc_rport_error + * and then unlock the rport. + */ +static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp, + void *rp_arg) +{ + struct fc_rport *rport = rp_arg; + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct { + struct fc_els_prli prli; + struct fc_els_spp spp; + } *pp; + u32 roles = FC_RPORT_ROLE_UNKNOWN; + u32 fcp_parm = 0; + u8 op; + + mutex_lock(&rdata->rp_mutex); + + FC_DEBUG_RPORT("Received a PRLI response from port (%6x)\n", + rport->port_id); + + if (rdata->rp_state != RPORT_ST_PRLI) { + FC_DBG("Received a PRLI response, but in state %s\n", + fc_rport_state(rport)); + goto out; + } + + if (IS_ERR(fp)) { + fc_rport_error(rport, fp); + goto err; + } + + op = fc_frame_payload_op(fp); + if (op == ELS_LS_ACC) { + pp = fc_frame_payload_get(fp, sizeof(*pp)); + if (pp && pp->prli.prli_spp_len >= sizeof(pp->spp)) { + fcp_parm = ntohl(pp->spp.spp_params); + if (fcp_parm & FCP_SPPF_RETRY) + rdata->flags |= FC_RP_FLAGS_RETRY; + } + + rport->supported_classes = FC_COS_CLASS3; + if (fcp_parm & FCP_SPPF_INIT_FCN) + roles |= FC_RPORT_ROLE_FCP_INITIATOR; + if (fcp_parm & FCP_SPPF_TARG_FCN) + roles |= FC_RPORT_ROLE_FCP_TARGET; + + rport->roles = roles; + fc_rport_enter_rtv(rport); + + } else { + FC_DBG("Bad ELS response\n"); + rdata->event = RPORT_EV_FAILED; + queue_work(rport_event_queue, &rdata->event_work); + } + +out: + fc_frame_free(fp); +err: + mutex_unlock(&rdata->rp_mutex); + put_device(&rport->dev); +} + +/** + * fc_rport_logo_resp - Logout (LOGO) response handler + * @sp: current sequence in the LOGO exchange + * @fp: response frame + * @rp_arg: Fibre Channel remote port + * + * Locking Note: This function will be called without the rport lock + * held, but it will lock, call an _enter_* function or fc_rport_error + * and then unlock the rport. + */ +static void fc_rport_logo_resp(struct fc_seq *sp, struct fc_frame *fp, + void *rp_arg) +{ + struct fc_rport *rport = rp_arg; + struct fc_rport_libfc_priv *rdata = rport->dd_data; + u8 op; + + mutex_lock(&rdata->rp_mutex); + + FC_DEBUG_RPORT("Received a LOGO response from port (%6x)\n", + rport->port_id); + + if (IS_ERR(fp)) { + fc_rport_error(rport, fp); + goto err; + } + + if (rdata->rp_state != RPORT_ST_LOGO) { + FC_DEBUG_RPORT("Received a LOGO response, but in state %s\n", + fc_rport_state(rport)); + goto out; + } + + op = fc_frame_payload_op(fp); + if (op == ELS_LS_ACC) { + fc_rport_enter_rtv(rport); + } else { + FC_DBG("Bad ELS response\n"); + rdata->event = RPORT_EV_LOGO; + queue_work(rport_event_queue, &rdata->event_work); + } + +out: + fc_frame_free(fp); +err: + mutex_unlock(&rdata->rp_mutex); + put_device(&rport->dev); +} + +/** + * fc_rport_enter_prli - Send Process Login (PRLI) request to peer + * @rport: Fibre Channel remote port to send PRLI to + * + * Locking Note: The rport lock is expected to be held before calling + * this routine. + */ +static void fc_rport_enter_prli(struct fc_rport *rport) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_lport *lport = rdata->local_port; + struct { + struct fc_els_prli prli; + struct fc_els_spp spp; + } *pp; + struct fc_frame *fp; + + FC_DEBUG_RPORT("Port (%6x) entered PRLI state from %s state\n", + rport->port_id, fc_rport_state(rport)); + + fc_rport_state_enter(rport, RPORT_ST_PRLI); + + fp = fc_frame_alloc(lport, sizeof(*pp)); + if (!fp) { + fc_rport_error(rport, fp); + return; + } + + if (!lport->tt.elsct_send(lport, rport, fp, ELS_PRLI, + fc_rport_prli_resp, rport, lport->e_d_tov)) + fc_rport_error(rport, fp); + else + get_device(&rport->dev); +} + +/** + * fc_rport_els_rtv_resp - Request Timeout Value response handler + * @sp: current sequence in the RTV exchange + * @fp: response frame + * @rp_arg: Fibre Channel remote port + * + * Many targets don't seem to support this. + * + * Locking Note: This function will be called without the rport lock + * held, but it will lock, call an _enter_* function or fc_rport_error + * and then unlock the rport. + */ +static void fc_rport_rtv_resp(struct fc_seq *sp, struct fc_frame *fp, + void *rp_arg) +{ + struct fc_rport *rport = rp_arg; + struct fc_rport_libfc_priv *rdata = rport->dd_data; + u8 op; + + mutex_lock(&rdata->rp_mutex); + + FC_DEBUG_RPORT("Received a RTV response from port (%6x)\n", + rport->port_id); + + if (rdata->rp_state != RPORT_ST_RTV) { + FC_DBG("Received a RTV response, but in state %s\n", + fc_rport_state(rport)); + goto out; + } + + if (IS_ERR(fp)) { + fc_rport_error(rport, fp); + goto err; + } + + op = fc_frame_payload_op(fp); + if (op == ELS_LS_ACC) { + struct fc_els_rtv_acc *rtv; + u32 toq; + u32 tov; + + rtv = fc_frame_payload_get(fp, sizeof(*rtv)); + if (rtv) { + toq = ntohl(rtv->rtv_toq); + tov = ntohl(rtv->rtv_r_a_tov); + if (tov == 0) + tov = 1; + rdata->r_a_tov = tov; + tov = ntohl(rtv->rtv_e_d_tov); + if (toq & FC_ELS_RTV_EDRES) + tov /= 1000000; + if (tov == 0) + tov = 1; + rdata->e_d_tov = tov; + } + } + + fc_rport_enter_ready(rport); + +out: + fc_frame_free(fp); +err: + mutex_unlock(&rdata->rp_mutex); + put_device(&rport->dev); +} + +/** + * fc_rport_enter_rtv - Send Request Timeout Value (RTV) request to peer + * @rport: Fibre Channel remote port to send RTV to + * + * Locking Note: The rport lock is expected to be held before calling + * this routine. + */ +static void fc_rport_enter_rtv(struct fc_rport *rport) +{ + struct fc_frame *fp; + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_lport *lport = rdata->local_port; + + FC_DEBUG_RPORT("Port (%6x) entered RTV state from %s state\n", + rport->port_id, fc_rport_state(rport)); + + fc_rport_state_enter(rport, RPORT_ST_RTV); + + fp = fc_frame_alloc(lport, sizeof(struct fc_els_rtv)); + if (!fp) { + fc_rport_error(rport, fp); + return; + } + + if (!lport->tt.elsct_send(lport, rport, fp, ELS_RTV, + fc_rport_rtv_resp, rport, lport->e_d_tov)) + fc_rport_error(rport, fp); + else + get_device(&rport->dev); +} + +/** + * fc_rport_enter_logo - Send Logout (LOGO) request to peer + * @rport: Fibre Channel remote port to send LOGO to + * + * Locking Note: The rport lock is expected to be held before calling + * this routine. + */ +static void fc_rport_enter_logo(struct fc_rport *rport) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_lport *lport = rdata->local_port; + struct fc_frame *fp; + + FC_DEBUG_RPORT("Port (%6x) entered LOGO state from %s state\n", + rport->port_id, fc_rport_state(rport)); + + fc_rport_state_enter(rport, RPORT_ST_LOGO); + + fp = fc_frame_alloc(lport, sizeof(struct fc_els_logo)); + if (!fp) { + fc_rport_error(rport, fp); + return; + } + + if (!lport->tt.elsct_send(lport, rport, fp, ELS_LOGO, + fc_rport_logo_resp, rport, lport->e_d_tov)) + fc_rport_error(rport, fp); + else + get_device(&rport->dev); +} + + +/** + * fc_rport_recv_req - Receive a request from a rport + * @sp: current sequence in the PLOGI exchange + * @fp: response frame + * @rp_arg: Fibre Channel remote port + * + * Locking Note: Called without the rport lock held. This + * function will hold the rport lock, call an _enter_* + * function and then unlock the rport. + */ +void fc_rport_recv_req(struct fc_seq *sp, struct fc_frame *fp, + struct fc_rport *rport) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_lport *lport = rdata->local_port; + + struct fc_frame_header *fh; + struct fc_seq_els_data els_data; + u8 op; + + mutex_lock(&rdata->rp_mutex); + + els_data.fp = NULL; + els_data.explan = ELS_EXPL_NONE; + els_data.reason = ELS_RJT_NONE; + + fh = fc_frame_header_get(fp); + + if (fh->fh_r_ctl == FC_RCTL_ELS_REQ && fh->fh_type == FC_TYPE_ELS) { + op = fc_frame_payload_op(fp); + switch (op) { + case ELS_PLOGI: + fc_rport_recv_plogi_req(rport, sp, fp); + break; + case ELS_PRLI: + fc_rport_recv_prli_req(rport, sp, fp); + break; + case ELS_PRLO: + fc_rport_recv_prlo_req(rport, sp, fp); + break; + case ELS_LOGO: + fc_rport_recv_logo_req(rport, sp, fp); + break; + case ELS_RRQ: + els_data.fp = fp; + lport->tt.seq_els_rsp_send(sp, ELS_RRQ, &els_data); + break; + case ELS_REC: + els_data.fp = fp; + lport->tt.seq_els_rsp_send(sp, ELS_REC, &els_data); + break; + default: + els_data.reason = ELS_RJT_UNSUP; + lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &els_data); + break; + } + } + + mutex_unlock(&rdata->rp_mutex); +} + +/** + * fc_rport_recv_plogi_req - Handle incoming Port Login (PLOGI) request + * @rport: Fibre Channel remote port that initiated PLOGI + * @sp: current sequence in the PLOGI exchange + * @fp: PLOGI request frame + * + * Locking Note: The rport lock is exected to be held before calling + * this function. + */ +static void fc_rport_recv_plogi_req(struct fc_rport *rport, + struct fc_seq *sp, struct fc_frame *rx_fp) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_lport *lport = rdata->local_port; + struct fc_frame *fp = rx_fp; + struct fc_exch *ep; + struct fc_frame_header *fh; + struct fc_els_flogi *pl; + struct fc_seq_els_data rjt_data; + u32 sid; + u64 wwpn; + u64 wwnn; + enum fc_els_rjt_reason reject = 0; + u32 f_ctl; + rjt_data.fp = NULL; + + fh = fc_frame_header_get(fp); + + FC_DEBUG_RPORT("Received PLOGI request from port (%6x) " + "while in state %s\n", ntoh24(fh->fh_s_id), + fc_rport_state(rport)); + + sid = ntoh24(fh->fh_s_id); + pl = fc_frame_payload_get(fp, sizeof(*pl)); + if (!pl) { + FC_DBG("incoming PLOGI from %x too short\n", sid); + WARN_ON(1); + /* XXX TBD: send reject? */ + fc_frame_free(fp); + return; + } + wwpn = get_unaligned_be64(&pl->fl_wwpn); + wwnn = get_unaligned_be64(&pl->fl_wwnn); + + /* + * If the session was just created, possibly due to the incoming PLOGI, + * set the state appropriately and accept the PLOGI. + * + * If we had also sent a PLOGI, and if the received PLOGI is from a + * higher WWPN, we accept it, otherwise an LS_RJT is sent with reason + * "command already in progress". + * + * XXX TBD: If the session was ready before, the PLOGI should result in + * all outstanding exchanges being reset. + */ + switch (rdata->rp_state) { + case RPORT_ST_INIT: + FC_DEBUG_RPORT("incoming PLOGI from %6x wwpn %llx state INIT " + "- reject\n", sid, wwpn); + reject = ELS_RJT_UNSUP; + break; + case RPORT_ST_PLOGI: + FC_DEBUG_RPORT("incoming PLOGI from %x in PLOGI state %d\n", + sid, rdata->rp_state); + if (wwpn < lport->wwpn) + reject = ELS_RJT_INPROG; + break; + case RPORT_ST_PRLI: + case RPORT_ST_READY: + FC_DEBUG_RPORT("incoming PLOGI from %x in logged-in state %d " + "- ignored for now\n", sid, rdata->rp_state); + /* XXX TBD - should reset */ + break; + case RPORT_ST_NONE: + default: + FC_DEBUG_RPORT("incoming PLOGI from %x in unexpected " + "state %d\n", sid, rdata->rp_state); + break; + } + + if (reject) { + rjt_data.reason = reject; + rjt_data.explan = ELS_EXPL_NONE; + lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &rjt_data); + fc_frame_free(fp); + } else { + fp = fc_frame_alloc(lport, sizeof(*pl)); + if (fp == NULL) { + fp = rx_fp; + rjt_data.reason = ELS_RJT_UNAB; + rjt_data.explan = ELS_EXPL_NONE; + lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &rjt_data); + fc_frame_free(fp); + } else { + sp = lport->tt.seq_start_next(sp); + WARN_ON(!sp); + fc_rport_set_name(rport, wwpn, wwnn); + + /* + * Get session payload size from incoming PLOGI. + */ + rport->maxframe_size = + fc_plogi_get_maxframe(pl, lport->mfs); + fc_frame_free(rx_fp); + fc_plogi_fill(lport, fp, ELS_LS_ACC); + + /* + * Send LS_ACC. If this fails, + * the originator should retry. + */ + f_ctl = FC_FC_EX_CTX | FC_FC_LAST_SEQ; + f_ctl |= FC_FC_END_SEQ | FC_FC_SEQ_INIT; + ep = fc_seq_exch(sp); + fc_fill_fc_hdr(fp, FC_RCTL_ELS_REP, ep->did, ep->sid, + FC_TYPE_ELS, f_ctl, 0); + lport->tt.seq_send(lport, sp, fp); + if (rdata->rp_state == RPORT_ST_PLOGI) + fc_rport_enter_prli(rport); + } + } +} + +/** + * fc_rport_recv_prli_req - Handle incoming Process Login (PRLI) request + * @rport: Fibre Channel remote port that initiated PRLI + * @sp: current sequence in the PRLI exchange + * @fp: PRLI request frame + * + * Locking Note: The rport lock is exected to be held before calling + * this function. + */ +static void fc_rport_recv_prli_req(struct fc_rport *rport, + struct fc_seq *sp, struct fc_frame *rx_fp) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_lport *lport = rdata->local_port; + struct fc_exch *ep; + struct fc_frame *fp; + struct fc_frame_header *fh; + struct { + struct fc_els_prli prli; + struct fc_els_spp spp; + } *pp; + struct fc_els_spp *rspp; /* request service param page */ + struct fc_els_spp *spp; /* response spp */ + unsigned int len; + unsigned int plen; + enum fc_els_rjt_reason reason = ELS_RJT_UNAB; + enum fc_els_rjt_explan explan = ELS_EXPL_NONE; + enum fc_els_spp_resp resp; + struct fc_seq_els_data rjt_data; + u32 f_ctl; + u32 fcp_parm; + u32 roles = FC_RPORT_ROLE_UNKNOWN; + rjt_data.fp = NULL; + + fh = fc_frame_header_get(rx_fp); + + FC_DEBUG_RPORT("Received PRLI request from port (%6x) " + "while in state %s\n", ntoh24(fh->fh_s_id), + fc_rport_state(rport)); + + switch (rdata->rp_state) { + case RPORT_ST_PRLI: + case RPORT_ST_READY: + reason = ELS_RJT_NONE; + break; + default: + break; + } + len = fr_len(rx_fp) - sizeof(*fh); + pp = fc_frame_payload_get(rx_fp, sizeof(*pp)); + if (pp == NULL) { + reason = ELS_RJT_PROT; + explan = ELS_EXPL_INV_LEN; + } else { + plen = ntohs(pp->prli.prli_len); + if ((plen % 4) != 0 || plen > len) { + reason = ELS_RJT_PROT; + explan = ELS_EXPL_INV_LEN; + } else if (plen < len) { + len = plen; + } + plen = pp->prli.prli_spp_len; + if ((plen % 4) != 0 || plen < sizeof(*spp) || + plen > len || len < sizeof(*pp)) { + reason = ELS_RJT_PROT; + explan = ELS_EXPL_INV_LEN; + } + rspp = &pp->spp; + } + if (reason != ELS_RJT_NONE || + (fp = fc_frame_alloc(lport, len)) == NULL) { + rjt_data.reason = reason; + rjt_data.explan = explan; + lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &rjt_data); + } else { + sp = lport->tt.seq_start_next(sp); + WARN_ON(!sp); + pp = fc_frame_payload_get(fp, len); + WARN_ON(!pp); + memset(pp, 0, len); + pp->prli.prli_cmd = ELS_LS_ACC; + pp->prli.prli_spp_len = plen; + pp->prli.prli_len = htons(len); + len -= sizeof(struct fc_els_prli); + + /* + * Go through all the service parameter pages and build + * response. If plen indicates longer SPP than standard, + * use that. The entire response has been pre-cleared above. + */ + spp = &pp->spp; + while (len >= plen) { + spp->spp_type = rspp->spp_type; + spp->spp_type_ext = rspp->spp_type_ext; + spp->spp_flags = rspp->spp_flags & FC_SPP_EST_IMG_PAIR; + resp = FC_SPP_RESP_ACK; + if (rspp->spp_flags & FC_SPP_RPA_VAL) + resp = FC_SPP_RESP_NO_PA; + switch (rspp->spp_type) { + case 0: /* common to all FC-4 types */ + break; + case FC_TYPE_FCP: + fcp_parm = ntohl(rspp->spp_params); + if (fcp_parm * FCP_SPPF_RETRY) + rdata->flags |= FC_RP_FLAGS_RETRY; + rport->supported_classes = FC_COS_CLASS3; + if (fcp_parm & FCP_SPPF_INIT_FCN) + roles |= FC_RPORT_ROLE_FCP_INITIATOR; + if (fcp_parm & FCP_SPPF_TARG_FCN) + roles |= FC_RPORT_ROLE_FCP_TARGET; + rport->roles = roles; + + spp->spp_params = + htonl(lport->service_params); + break; + default: + resp = FC_SPP_RESP_INVL; + break; + } + spp->spp_flags |= resp; + len -= plen; + rspp = (struct fc_els_spp *)((char *)rspp + plen); + spp = (struct fc_els_spp *)((char *)spp + plen); + } + + /* + * Send LS_ACC. If this fails, the originator should retry. + */ + f_ctl = FC_FC_EX_CTX | FC_FC_LAST_SEQ; + f_ctl |= FC_FC_END_SEQ | FC_FC_SEQ_INIT; + ep = fc_seq_exch(sp); + fc_fill_fc_hdr(fp, FC_RCTL_ELS_REP, ep->did, ep->sid, + FC_TYPE_ELS, f_ctl, 0); + lport->tt.seq_send(lport, sp, fp); + + /* + * Get lock and re-check state. + */ + switch (rdata->rp_state) { + case RPORT_ST_PRLI: + fc_rport_enter_ready(rport); + break; + case RPORT_ST_READY: + break; + default: + break; + } + } + fc_frame_free(rx_fp); +} + +/** + * fc_rport_recv_prlo_req - Handle incoming Process Logout (PRLO) request + * @rport: Fibre Channel remote port that initiated PRLO + * @sp: current sequence in the PRLO exchange + * @fp: PRLO request frame + * + * Locking Note: The rport lock is exected to be held before calling + * this function. + */ +static void fc_rport_recv_prlo_req(struct fc_rport *rport, struct fc_seq *sp, + struct fc_frame *fp) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_lport *lport = rdata->local_port; + + struct fc_frame_header *fh; + struct fc_seq_els_data rjt_data; + + fh = fc_frame_header_get(fp); + + FC_DEBUG_RPORT("Received PRLO request from port (%6x) " + "while in state %s\n", ntoh24(fh->fh_s_id), + fc_rport_state(rport)); + + rjt_data.fp = NULL; + rjt_data.reason = ELS_RJT_UNAB; + rjt_data.explan = ELS_EXPL_NONE; + lport->tt.seq_els_rsp_send(sp, ELS_LS_RJT, &rjt_data); + fc_frame_free(fp); +} + +/** + * fc_rport_recv_logo_req - Handle incoming Logout (LOGO) request + * @rport: Fibre Channel remote port that initiated LOGO + * @sp: current sequence in the LOGO exchange + * @fp: LOGO request frame + * + * Locking Note: The rport lock is exected to be held before calling + * this function. + */ +static void fc_rport_recv_logo_req(struct fc_rport *rport, struct fc_seq *sp, + struct fc_frame *fp) +{ + struct fc_frame_header *fh; + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_lport *lport = rdata->local_port; + + fh = fc_frame_header_get(fp); + + FC_DEBUG_RPORT("Received LOGO request from port (%6x) " + "while in state %s\n", ntoh24(fh->fh_s_id), + fc_rport_state(rport)); + + rdata->event = RPORT_EV_LOGO; + queue_work(rport_event_queue, &rdata->event_work); + + lport->tt.seq_els_rsp_send(sp, ELS_LS_ACC, NULL); + fc_frame_free(fp); +} + +static void fc_rport_flush_queue(void) +{ + flush_workqueue(rport_event_queue); +} + + +int fc_rport_init(struct fc_lport *lport) +{ + if (!lport->tt.rport_login) + lport->tt.rport_login = fc_rport_login; + + if (!lport->tt.rport_logoff) + lport->tt.rport_logoff = fc_rport_logoff; + + if (!lport->tt.rport_recv_req) + lport->tt.rport_recv_req = fc_rport_recv_req; + + if (!lport->tt.rport_flush_queue) + lport->tt.rport_flush_queue = fc_rport_flush_queue; + + return 0; +} +EXPORT_SYMBOL(fc_rport_init); + +int fc_setup_rport() +{ + rport_event_queue = create_singlethread_workqueue("fc_rport_eq"); + if (!rport_event_queue) + return -ENOMEM; + return 0; +} +EXPORT_SYMBOL(fc_setup_rport); + +void fc_destroy_rport() +{ + destroy_workqueue(rport_event_queue); +} +EXPORT_SYMBOL(fc_destroy_rport); + +void fc_rport_terminate_io(struct fc_rport *rport) +{ + struct fc_rport_libfc_priv *rdata = rport->dd_data; + struct fc_lport *lport = rdata->local_port; + + lport->tt.exch_mgr_reset(lport->emp, 0, rport->port_id); + lport->tt.exch_mgr_reset(lport->emp, rport->port_id, 0); +} +EXPORT_SYMBOL(fc_rport_terminate_io); diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 3fdee73..7225b6e 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -88,34 +88,47 @@ iscsi_update_cmdsn(struct iscsi_session *session, struct iscsi_nopin *hdr) } EXPORT_SYMBOL_GPL(iscsi_update_cmdsn); -void iscsi_prep_unsolicit_data_pdu(struct iscsi_task *task, - struct iscsi_data *hdr) +/** + * iscsi_prep_data_out_pdu - initialize Data-Out + * @task: scsi command task + * @r2t: R2T info + * @hdr: iscsi data in pdu + * + * Notes: + * Initialize Data-Out within this R2T sequence and finds + * proper data_offset within this SCSI command. + * + * This function is called with connection lock taken. + **/ +void iscsi_prep_data_out_pdu(struct iscsi_task *task, struct iscsi_r2t_info *r2t, + struct iscsi_data *hdr) { struct iscsi_conn *conn = task->conn; + unsigned int left = r2t->data_length - r2t->sent; + + task->hdr_len = sizeof(struct iscsi_data); memset(hdr, 0, sizeof(struct iscsi_data)); - hdr->ttt = cpu_to_be32(ISCSI_RESERVED_TAG); - hdr->datasn = cpu_to_be32(task->unsol_datasn); - task->unsol_datasn++; + hdr->ttt = r2t->ttt; + hdr->datasn = cpu_to_be32(r2t->datasn); + r2t->datasn++; hdr->opcode = ISCSI_OP_SCSI_DATA_OUT; - memcpy(hdr->lun, task->hdr->lun, sizeof(hdr->lun)); - - hdr->itt = task->hdr->itt; - hdr->exp_statsn = cpu_to_be32(conn->exp_statsn); - hdr->offset = cpu_to_be32(task->unsol_offset); - - if (task->unsol_count > conn->max_xmit_dlength) { + memcpy(hdr->lun, task->lun, sizeof(hdr->lun)); + hdr->itt = task->hdr_itt; + hdr->exp_statsn = r2t->exp_statsn; + hdr->offset = cpu_to_be32(r2t->data_offset + r2t->sent); + if (left > conn->max_xmit_dlength) { hton24(hdr->dlength, conn->max_xmit_dlength); - task->data_count = conn->max_xmit_dlength; - task->unsol_offset += task->data_count; + r2t->data_count = conn->max_xmit_dlength; hdr->flags = 0; } else { - hton24(hdr->dlength, task->unsol_count); - task->data_count = task->unsol_count; + hton24(hdr->dlength, left); + r2t->data_count = left; hdr->flags = ISCSI_FLAG_CMD_FINAL; } + conn->dataout_pdus_cnt++; } -EXPORT_SYMBOL_GPL(iscsi_prep_unsolicit_data_pdu); +EXPORT_SYMBOL_GPL(iscsi_prep_data_out_pdu); static int iscsi_add_hdr(struct iscsi_task *task, unsigned len) { @@ -206,11 +219,24 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task) { struct iscsi_conn *conn = task->conn; struct iscsi_session *session = conn->session; - struct iscsi_cmd *hdr = task->hdr; struct scsi_cmnd *sc = task->sc; + struct iscsi_cmd *hdr; unsigned hdrlength, cmd_len; + itt_t itt; int rc; + rc = conn->session->tt->alloc_pdu(task, ISCSI_OP_SCSI_CMD); + if (rc) + return rc; + hdr = (struct iscsi_cmd *) task->hdr; + itt = hdr->itt; + memset(hdr, 0, sizeof(*hdr)); + + if (session->tt->parse_pdu_itt) + hdr->itt = task->hdr_itt = itt; + else + hdr->itt = task->hdr_itt = build_itt(task->itt, + task->conn->session->age); task->hdr_len = 0; rc = iscsi_add_hdr(task, sizeof(*hdr)); if (rc) @@ -218,8 +244,8 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task) hdr->opcode = ISCSI_OP_SCSI_CMD; hdr->flags = ISCSI_ATTR_SIMPLE; int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun); - hdr->itt = build_itt(task->itt, session->age); - hdr->cmdsn = cpu_to_be32(session->cmdsn); + memcpy(task->lun, hdr->lun, sizeof(task->lun)); + hdr->cmdsn = task->cmdsn = cpu_to_be32(session->cmdsn); session->cmdsn++; hdr->exp_statsn = cpu_to_be32(conn->exp_statsn); cmd_len = sc->cmd_len; @@ -242,6 +268,8 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task) } if (sc->sc_data_direction == DMA_TO_DEVICE) { unsigned out_len = scsi_out(sc)->length; + struct iscsi_r2t_info *r2t = &task->unsol_r2t; + hdr->data_length = cpu_to_be32(out_len); hdr->flags |= ISCSI_FLAG_CMD_WRITE; /* @@ -254,13 +282,11 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task) * without R2T ack right after * immediate data * - * r2t_data_count bytes to be sent via R2T ack's + * r2t data_length bytes to be sent via R2T ack's * * pad_count bytes to be sent as zero-padding */ - task->unsol_count = 0; - task->unsol_offset = 0; - task->unsol_datasn = 0; + memset(r2t, 0, sizeof(*r2t)); if (session->imm_data_en) { if (out_len >= session->first_burst) @@ -274,12 +300,14 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task) zero_data(hdr->dlength); if (!session->initial_r2t_en) { - task->unsol_count = min(session->first_burst, out_len) - - task->imm_count; - task->unsol_offset = task->imm_count; + r2t->data_length = min(session->first_burst, out_len) - + task->imm_count; + r2t->data_offset = task->imm_count; + r2t->ttt = cpu_to_be32(ISCSI_RESERVED_TAG); + r2t->exp_statsn = cpu_to_be32(conn->exp_statsn); } - if (!task->unsol_count) + if (!task->unsol_r2t.data_length) /* No unsolicit Data-Out's */ hdr->flags |= ISCSI_FLAG_CMD_FINAL; } else { @@ -300,8 +328,7 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task) WARN_ON(hdrlength >= 256); hdr->hlength = hdrlength & 0xFF; - if (conn->session->tt->init_task && - conn->session->tt->init_task(task)) + if (session->tt->init_task && session->tt->init_task(task)) return -EIO; task->state = ISCSI_TASK_RUNNING; @@ -332,6 +359,7 @@ static void iscsi_complete_command(struct iscsi_task *task) struct iscsi_session *session = conn->session; struct scsi_cmnd *sc = task->sc; + session->tt->cleanup_task(task); list_del_init(&task->running); task->state = ISCSI_TASK_COMPLETED; task->sc = NULL; @@ -402,8 +430,6 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_task *task, * the cmd in the sequencing */ conn->session->queued_cmdsn--; - else - conn->session->tt->cleanup_task(conn, task); sc->result = err; if (!scsi_bidi_cmnd(sc)) @@ -423,7 +449,7 @@ static int iscsi_prep_mgmt_task(struct iscsi_conn *conn, struct iscsi_task *task) { struct iscsi_session *session = conn->session; - struct iscsi_hdr *hdr = (struct iscsi_hdr *)task->hdr; + struct iscsi_hdr *hdr = task->hdr; struct iscsi_nopout *nop = (struct iscsi_nopout *)hdr; if (conn->session->state == ISCSI_STATE_LOGGING_OUT) @@ -437,7 +463,6 @@ static int iscsi_prep_mgmt_task(struct iscsi_conn *conn, */ nop->cmdsn = cpu_to_be32(session->cmdsn); if (hdr->itt != RESERVED_ITT) { - hdr->itt = build_itt(task->itt, session->age); /* * TODO: We always use immediate, so we never hit this. * If we start to send tmfs or nops as non-immediate then @@ -450,12 +475,13 @@ static int iscsi_prep_mgmt_task(struct iscsi_conn *conn, } } - if (session->tt->init_task) - session->tt->init_task(task); + if (session->tt->init_task && session->tt->init_task(task)) + return -EIO; if ((hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT) session->state = ISCSI_STATE_LOGGING_OUT; + task->state = ISCSI_TASK_RUNNING; list_move_tail(&task->running, &conn->mgmt_run_list); debug_scsi("mgmtpdu [op 0x%x hdr->itt 0x%x datalen %d]\n", hdr->opcode & ISCSI_OPCODE_MASK, hdr->itt, @@ -469,6 +495,7 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, { struct iscsi_session *session = conn->session; struct iscsi_task *task; + itt_t itt; if (session->state == ISCSI_STATE_TERMINATE) return NULL; @@ -505,23 +532,47 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, } else task->data_count = 0; + if (conn->session->tt->alloc_pdu(task, hdr->opcode)) { + iscsi_conn_printk(KERN_ERR, conn, "Could not allocate " + "pdu for mgmt task.\n"); + goto requeue_task; + } + itt = task->hdr->itt; + task->hdr_len = sizeof(struct iscsi_hdr); memcpy(task->hdr, hdr, sizeof(struct iscsi_hdr)); + + if (hdr->itt != RESERVED_ITT) { + if (session->tt->parse_pdu_itt) + task->hdr->itt = itt; + else + task->hdr->itt = build_itt(task->itt, + task->conn->session->age); + } + INIT_LIST_HEAD(&task->running); list_add_tail(&task->running, &conn->mgmtqueue); if (session->tt->caps & CAP_DATA_PATH_OFFLOAD) { - if (iscsi_prep_mgmt_task(conn, task)) { - __iscsi_put_task(task); - return NULL; - } + if (iscsi_prep_mgmt_task(conn, task)) + goto free_task; if (session->tt->xmit_task(task)) - task = NULL; + goto free_task; } else scsi_queue_work(conn->session->host, &conn->xmitwork); return task; + +free_task: + __iscsi_put_task(task); + return NULL; + +requeue_task: + if (task != conn->login_task) + __kfifo_put(session->cmdpool.queue, (void*)&task, + sizeof(void*)); + return NULL; } int iscsi_conn_send_pdu(struct iscsi_cls_conn *cls_conn, struct iscsi_hdr *hdr, @@ -709,7 +760,6 @@ static int iscsi_handle_reject(struct iscsi_conn *conn, struct iscsi_hdr *hdr, { struct iscsi_reject *reject = (struct iscsi_reject *)hdr; struct iscsi_hdr rejected_pdu; - uint32_t itt; conn->exp_statsn = be32_to_cpu(reject->statsn) + 1; @@ -719,10 +769,9 @@ static int iscsi_handle_reject(struct iscsi_conn *conn, struct iscsi_hdr *hdr, if (ntoh24(reject->dlength) >= sizeof(struct iscsi_hdr)) { memcpy(&rejected_pdu, data, sizeof(struct iscsi_hdr)); - itt = get_itt(rejected_pdu.itt); iscsi_conn_printk(KERN_ERR, conn, - "itt 0x%x had pdu (op 0x%x) rejected " - "due to DataDigest error.\n", itt, + "pdu (op 0x%x) rejected " + "due to DataDigest error.\n", rejected_pdu.opcode); } } @@ -742,12 +791,15 @@ static int iscsi_handle_reject(struct iscsi_conn *conn, struct iscsi_hdr *hdr, static struct iscsi_task *iscsi_itt_to_task(struct iscsi_conn *conn, itt_t itt) { struct iscsi_session *session = conn->session; - uint32_t i; + int i; if (itt == RESERVED_ITT) return NULL; - i = get_itt(itt); + if (session->tt->parse_pdu_itt) + session->tt->parse_pdu_itt(conn, itt, &i, NULL); + else + i = get_itt(itt); if (i >= session->cmds_max) return NULL; @@ -922,20 +974,25 @@ EXPORT_SYMBOL_GPL(iscsi_complete_pdu); int iscsi_verify_itt(struct iscsi_conn *conn, itt_t itt) { struct iscsi_session *session = conn->session; - uint32_t i; + int age = 0, i = 0; if (itt == RESERVED_ITT) return 0; - if (((__force u32)itt & ISCSI_AGE_MASK) != - (session->age << ISCSI_AGE_SHIFT)) { + if (session->tt->parse_pdu_itt) + session->tt->parse_pdu_itt(conn, itt, &i, &age); + else { + i = get_itt(itt); + age = ((__force u32)itt >> ISCSI_AGE_SHIFT) & ISCSI_AGE_MASK; + } + + if (age != session->age) { iscsi_conn_printk(KERN_ERR, conn, "received itt %x expected session age (%x)\n", (__force u32)itt, session->age); return ISCSI_ERR_BAD_ITT; } - i = get_itt(itt); if (i >= session->cmds_max) { iscsi_conn_printk(KERN_ERR, conn, "received invalid itt index %u (max cmds " @@ -1136,8 +1193,13 @@ check_mgmt: fail_command(conn, conn->task, DID_IMM_RETRY << 16); continue; } - if (iscsi_prep_scsi_cmd_pdu(conn->task)) { - fail_command(conn, conn->task, DID_ABORT << 16); + rc = iscsi_prep_scsi_cmd_pdu(conn->task); + if (rc) { + if (rc == -ENOMEM) { + conn->task = NULL; + goto again; + } else + fail_command(conn, conn->task, DID_ABORT << 16); continue; } rc = iscsi_xmit_task(conn); @@ -1195,6 +1257,26 @@ static void iscsi_xmitworker(struct work_struct *work) } while (rc >= 0 || rc == -EAGAIN); } +static inline struct iscsi_task *iscsi_alloc_task(struct iscsi_conn *conn, + struct scsi_cmnd *sc) +{ + struct iscsi_task *task; + + if (!__kfifo_get(conn->session->cmdpool.queue, + (void *) &task, sizeof(void *))) + return NULL; + + sc->SCp.phase = conn->session->age; + sc->SCp.ptr = (char *) task; + + atomic_set(&task->refcount, 1); + task->state = ISCSI_TASK_PENDING; + task->conn = conn; + task->sc = sc; + INIT_LIST_HEAD(&task->running); + return task; +} + enum { FAILURE_BAD_HOST = 1, FAILURE_SESSION_FAILED, @@ -1281,33 +1363,27 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) goto reject; } - if (!__kfifo_get(session->cmdpool.queue, (void*)&task, - sizeof(void*))) { + task = iscsi_alloc_task(conn, sc); + if (!task) { reason = FAILURE_OOM; goto reject; } - sc->SCp.phase = session->age; - sc->SCp.ptr = (char *)task; - - atomic_set(&task->refcount, 1); - task->state = ISCSI_TASK_PENDING; - task->conn = conn; - task->sc = sc; - INIT_LIST_HEAD(&task->running); list_add_tail(&task->running, &conn->xmitqueue); if (session->tt->caps & CAP_DATA_PATH_OFFLOAD) { - if (iscsi_prep_scsi_cmd_pdu(task)) { - sc->result = DID_ABORT << 16; - sc->scsi_done = NULL; - iscsi_complete_command(task); - goto fault; + reason = iscsi_prep_scsi_cmd_pdu(task); + if (reason) { + if (reason == -ENOMEM) { + reason = FAILURE_OOM; + goto prepd_reject; + } else { + sc->result = DID_ABORT << 16; + goto prepd_fault; + } } if (session->tt->xmit_task(task)) { - sc->scsi_done = NULL; - iscsi_complete_command(task); reason = FAILURE_SESSION_NOT_READY; - goto reject; + goto prepd_reject; } } else scsi_queue_work(session->host, &conn->xmitwork); @@ -1317,12 +1393,18 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *)) spin_lock(host->host_lock); return 0; +prepd_reject: + sc->scsi_done = NULL; + iscsi_complete_command(task); reject: spin_unlock(&session->lock); debug_scsi("cmd 0x%x rejected (%d)\n", sc->cmnd[0], reason); spin_lock(host->host_lock); return SCSI_MLQUEUE_TARGET_BUSY; +prepd_fault: + sc->scsi_done = NULL; + iscsi_complete_command(task); fault: spin_unlock(&session->lock); debug_scsi("iscsi: cmd 0x%x is not queued (%d)\n", sc->cmnd[0], reason); @@ -1634,9 +1716,9 @@ static void iscsi_prep_abort_task_pdu(struct iscsi_task *task, hdr->opcode = ISCSI_OP_SCSI_TMFUNC | ISCSI_OP_IMMEDIATE; hdr->flags = ISCSI_TM_FUNC_ABORT_TASK & ISCSI_FLAG_TM_FUNC_MASK; hdr->flags |= ISCSI_FLAG_CMD_FINAL; - memcpy(hdr->lun, task->hdr->lun, sizeof(hdr->lun)); - hdr->rtt = task->hdr->itt; - hdr->refcmdsn = task->hdr->cmdsn; + memcpy(hdr->lun, task->lun, sizeof(hdr->lun)); + hdr->rtt = task->hdr_itt; + hdr->refcmdsn = task->cmdsn; } int iscsi_eh_abort(struct scsi_cmnd *sc) @@ -2223,7 +2305,8 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, int dd_size, } spin_unlock_bh(&session->lock); - data = kmalloc(ISCSI_DEF_MAX_RECV_SEG_LEN, GFP_KERNEL); + data = (char *) __get_free_pages(GFP_KERNEL, + get_order(ISCSI_DEF_MAX_RECV_SEG_LEN)); if (!data) goto login_task_data_alloc_fail; conn->login_task->data = conn->data = data; @@ -2294,7 +2377,8 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn) iscsi_suspend_tx(conn); spin_lock_bh(&session->lock); - kfree(conn->data); + free_pages((unsigned long) conn->data, + get_order(ISCSI_DEF_MAX_RECV_SEG_LEN)); kfree(conn->persistent_address); __kfifo_put(session->cmdpool.queue, (void*)&conn->login_task, sizeof(void*)); diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c new file mode 100644 index 0000000..a745f91 --- /dev/null +++ b/drivers/scsi/libiscsi_tcp.c @@ -0,0 +1,1163 @@ +/* + * iSCSI over TCP/IP Data-Path lib + * + * Copyright (C) 2004 Dmitry Yusupov + * Copyright (C) 2004 Alex Aizman + * Copyright (C) 2005 - 2006 Mike Christie + * Copyright (C) 2006 Red Hat, Inc. All rights reserved. + * maintained by open-iscsi@googlegroups.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published + * by the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * See the file COPYING included with this distribution for more details. + * + * Credits: + * Christoph Hellwig + * FUJITA Tomonori + * Arne Redlich + * Zhenyu Wang + */ + +#include <linux/types.h> +#include <linux/list.h> +#include <linux/inet.h> +#include <linux/file.h> +#include <linux/blkdev.h> +#include <linux/crypto.h> +#include <linux/delay.h> +#include <linux/kfifo.h> +#include <linux/scatterlist.h> +#include <net/tcp.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi.h> +#include <scsi/scsi_transport_iscsi.h> + +#include "iscsi_tcp.h" + +MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu>, " + "Dmitry Yusupov <dmitry_yus@yahoo.com>, " + "Alex Aizman <itn780@yahoo.com>"); +MODULE_DESCRIPTION("iSCSI/TCP data-path"); +MODULE_LICENSE("GPL"); +#undef DEBUG_TCP + +#ifdef DEBUG_TCP +#define debug_tcp(fmt...) printk(KERN_INFO "tcp: " fmt) +#else +#define debug_tcp(fmt...) +#endif + +static int iscsi_tcp_hdr_recv_done(struct iscsi_tcp_conn *tcp_conn, + struct iscsi_segment *segment); + +/* + * Scatterlist handling: inside the iscsi_segment, we + * remember an index into the scatterlist, and set data/size + * to the current scatterlist entry. For highmem pages, we + * kmap as needed. + * + * Note that the page is unmapped when we return from + * TCP's data_ready handler, so we may end up mapping and + * unmapping the same page repeatedly. The whole reason + * for this is that we shouldn't keep the page mapped + * outside the softirq. + */ + +/** + * iscsi_tcp_segment_init_sg - init indicated scatterlist entry + * @segment: the buffer object + * @sg: scatterlist + * @offset: byte offset into that sg entry + * + * This function sets up the segment so that subsequent + * data is copied to the indicated sg entry, at the given + * offset. + */ +static inline void +iscsi_tcp_segment_init_sg(struct iscsi_segment *segment, + struct scatterlist *sg, unsigned int offset) +{ + segment->sg = sg; + segment->sg_offset = offset; + segment->size = min(sg->length - offset, + segment->total_size - segment->total_copied); + segment->data = NULL; +} + +/** + * iscsi_tcp_segment_map - map the current S/G page + * @segment: iscsi_segment + * @recv: 1 if called from recv path + * + * We only need to possibly kmap data if scatter lists are being used, + * because the iscsi passthrough and internal IO paths will never use high + * mem pages. + */ +static void iscsi_tcp_segment_map(struct iscsi_segment *segment, int recv) +{ + struct scatterlist *sg; + + if (segment->data != NULL || !segment->sg) + return; + + sg = segment->sg; + BUG_ON(segment->sg_mapped); + BUG_ON(sg->length == 0); + + /* + * If the page count is greater than one it is ok to send + * to the network layer's zero copy send path. If not we + * have to go the slow sendmsg path. We always map for the + * recv path. + */ + if (page_count(sg_page(sg)) >= 1 && !recv) + return; + + debug_tcp("iscsi_tcp_segment_map %s %p\n", recv ? "recv" : "xmit", + segment); + segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0); + segment->data = segment->sg_mapped + sg->offset + segment->sg_offset; +} + +void iscsi_tcp_segment_unmap(struct iscsi_segment *segment) +{ + debug_tcp("iscsi_tcp_segment_unmap %p\n", segment); + + if (segment->sg_mapped) { + debug_tcp("iscsi_tcp_segment_unmap valid\n"); + kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0); + segment->sg_mapped = NULL; + segment->data = NULL; + } +} +EXPORT_SYMBOL_GPL(iscsi_tcp_segment_unmap); + +/* + * Splice the digest buffer into the buffer + */ +static inline void +iscsi_tcp_segment_splice_digest(struct iscsi_segment *segment, void *digest) +{ + segment->data = digest; + segment->digest_len = ISCSI_DIGEST_SIZE; + segment->total_size += ISCSI_DIGEST_SIZE; + segment->size = ISCSI_DIGEST_SIZE; + segment->copied = 0; + segment->sg = NULL; + segment->hash = NULL; +} + +/** + * iscsi_tcp_segment_done - check whether the segment is complete + * @tcp_conn: iscsi tcp connection + * @segment: iscsi segment to check + * @recv: set to one of this is called from the recv path + * @copied: number of bytes copied + * + * Check if we're done receiving this segment. If the receive + * buffer is full but we expect more data, move on to the + * next entry in the scatterlist. + * + * If the amount of data we received isn't a multiple of 4, + * we will transparently receive the pad bytes, too. + * + * This function must be re-entrant. + */ +int iscsi_tcp_segment_done(struct iscsi_tcp_conn *tcp_conn, + struct iscsi_segment *segment, int recv, + unsigned copied) +{ + static unsigned char padbuf[ISCSI_PAD_LEN]; + struct scatterlist sg; + unsigned int pad; + + debug_tcp("copied %u %u size %u %s\n", segment->copied, copied, + segment->size, recv ? "recv" : "xmit"); + if (segment->hash && copied) { + /* + * If a segment is kmapd we must unmap it before sending + * to the crypto layer since that will try to kmap it again. + */ + iscsi_tcp_segment_unmap(segment); + + if (!segment->data) { + sg_init_table(&sg, 1); + sg_set_page(&sg, sg_page(segment->sg), copied, + segment->copied + segment->sg_offset + + segment->sg->offset); + } else + sg_init_one(&sg, segment->data + segment->copied, + copied); + crypto_hash_update(segment->hash, &sg, copied); + } + + segment->copied += copied; + if (segment->copied < segment->size) { + iscsi_tcp_segment_map(segment, recv); + return 0; + } + + segment->total_copied += segment->copied; + segment->copied = 0; + segment->size = 0; + + /* Unmap the current scatterlist page, if there is one. */ + iscsi_tcp_segment_unmap(segment); + + /* Do we have more scatterlist entries? */ + debug_tcp("total copied %u total size %u\n", segment->total_copied, + segment->total_size); + if (segment->total_copied < segment->total_size) { + /* Proceed to the next entry in the scatterlist. */ + iscsi_tcp_segment_init_sg(segment, sg_next(segment->sg), + 0); + iscsi_tcp_segment_map(segment, recv); + BUG_ON(segment->size == 0); + return 0; + } + + /* Do we need to handle padding? */ + if (!(tcp_conn->iscsi_conn->session->tt->caps & CAP_PADDING_OFFLOAD)) { + pad = iscsi_padding(segment->total_copied); + if (pad != 0) { + debug_tcp("consume %d pad bytes\n", pad); + segment->total_size += pad; + segment->size = pad; + segment->data = padbuf; + return 0; + } + } + + /* + * Set us up for transferring the data digest. hdr digest + * is completely handled in hdr done function. + */ + if (segment->hash) { + crypto_hash_final(segment->hash, segment->digest); + iscsi_tcp_segment_splice_digest(segment, + recv ? segment->recv_digest : segment->digest); + return 0; + } + + return 1; +} +EXPORT_SYMBOL_GPL(iscsi_tcp_segment_done); + +/** + * iscsi_tcp_segment_recv - copy data to segment + * @tcp_conn: the iSCSI TCP connection + * @segment: the buffer to copy to + * @ptr: data pointer + * @len: amount of data available + * + * This function copies up to @len bytes to the + * given buffer, and returns the number of bytes + * consumed, which can actually be less than @len. + * + * If hash digest is enabled, the function will update the + * hash while copying. + * Combining these two operations doesn't buy us a lot (yet), + * but in the future we could implement combined copy+crc, + * just way we do for network layer checksums. + */ +static int +iscsi_tcp_segment_recv(struct iscsi_tcp_conn *tcp_conn, + struct iscsi_segment *segment, const void *ptr, + unsigned int len) +{ + unsigned int copy = 0, copied = 0; + + while (!iscsi_tcp_segment_done(tcp_conn, segment, 1, copy)) { + if (copied == len) { + debug_tcp("iscsi_tcp_segment_recv copied %d bytes\n", + len); + break; + } + + copy = min(len - copied, segment->size - segment->copied); + debug_tcp("iscsi_tcp_segment_recv copying %d\n", copy); + memcpy(segment->data + segment->copied, ptr + copied, copy); + copied += copy; + } + return copied; +} + +inline void +iscsi_tcp_dgst_header(struct hash_desc *hash, const void *hdr, size_t hdrlen, + unsigned char digest[ISCSI_DIGEST_SIZE]) +{ + struct scatterlist sg; + + sg_init_one(&sg, hdr, hdrlen); + crypto_hash_digest(hash, &sg, hdrlen, digest); +} +EXPORT_SYMBOL_GPL(iscsi_tcp_dgst_header); + +static inline int +iscsi_tcp_dgst_verify(struct iscsi_tcp_conn *tcp_conn, + struct iscsi_segment *segment) +{ + if (!segment->digest_len) + return 1; + + if (memcmp(segment->recv_digest, segment->digest, + segment->digest_len)) { + debug_scsi("digest mismatch\n"); + return 0; + } + + return 1; +} + +/* + * Helper function to set up segment buffer + */ +static inline void +__iscsi_segment_init(struct iscsi_segment *segment, size_t size, + iscsi_segment_done_fn_t *done, struct hash_desc *hash) +{ + memset(segment, 0, sizeof(*segment)); + segment->total_size = size; + segment->done = done; + + if (hash) { + segment->hash = hash; + crypto_hash_init(hash); + } +} + +inline void +iscsi_segment_init_linear(struct iscsi_segment *segment, void *data, + size_t size, iscsi_segment_done_fn_t *done, + struct hash_desc *hash) +{ + __iscsi_segment_init(segment, size, done, hash); + segment->data = data; + segment->size = size; +} +EXPORT_SYMBOL_GPL(iscsi_segment_init_linear); + +inline int +iscsi_segment_seek_sg(struct iscsi_segment *segment, + struct scatterlist *sg_list, unsigned int sg_count, + unsigned int offset, size_t size, + iscsi_segment_done_fn_t *done, struct hash_desc *hash) +{ + struct scatterlist *sg; + unsigned int i; + + debug_scsi("iscsi_segment_seek_sg offset %u size %llu\n", + offset, size); + __iscsi_segment_init(segment, size, done, hash); + for_each_sg(sg_list, sg, sg_count, i) { + debug_scsi("sg %d, len %u offset %u\n", i, sg->length, + sg->offset); + if (offset < sg->length) { + iscsi_tcp_segment_init_sg(segment, sg, offset); + return 0; + } + offset -= sg->length; + } + + return ISCSI_ERR_DATA_OFFSET; +} +EXPORT_SYMBOL_GPL(iscsi_segment_seek_sg); + +/** + * iscsi_tcp_hdr_recv_prep - prep segment for hdr reception + * @tcp_conn: iscsi connection to prep for + * + * This function always passes NULL for the hash argument, because when this + * function is called we do not yet know the final size of the header and want + * to delay the digest processing until we know that. + */ +void iscsi_tcp_hdr_recv_prep(struct iscsi_tcp_conn *tcp_conn) +{ + debug_tcp("iscsi_tcp_hdr_recv_prep(%p%s)\n", tcp_conn, + tcp_conn->iscsi_conn->hdrdgst_en ? ", digest enabled" : ""); + iscsi_segment_init_linear(&tcp_conn->in.segment, + tcp_conn->in.hdr_buf, sizeof(struct iscsi_hdr), + iscsi_tcp_hdr_recv_done, NULL); +} +EXPORT_SYMBOL_GPL(iscsi_tcp_hdr_recv_prep); + +/* + * Handle incoming reply to any other type of command + */ +static int +iscsi_tcp_data_recv_done(struct iscsi_tcp_conn *tcp_conn, + struct iscsi_segment *segment) +{ + struct iscsi_conn *conn = tcp_conn->iscsi_conn; + int rc = 0; + + if (!iscsi_tcp_dgst_verify(tcp_conn, segment)) + return ISCSI_ERR_DATA_DGST; + + rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, + conn->data, tcp_conn->in.datalen); + if (rc) + return rc; + + iscsi_tcp_hdr_recv_prep(tcp_conn); + return 0; +} + +static void +iscsi_tcp_data_recv_prep(struct iscsi_tcp_conn *tcp_conn) +{ + struct iscsi_conn *conn = tcp_conn->iscsi_conn; + struct hash_desc *rx_hash = NULL; + + if (conn->datadgst_en & + !(conn->session->tt->caps & CAP_DIGEST_OFFLOAD)) + rx_hash = tcp_conn->rx_hash; + + iscsi_segment_init_linear(&tcp_conn->in.segment, + conn->data, tcp_conn->in.datalen, + iscsi_tcp_data_recv_done, rx_hash); +} + +/** + * iscsi_tcp_cleanup_task - free tcp_task resources + * @task: iscsi task + * + * must be called with session lock + */ +void iscsi_tcp_cleanup_task(struct iscsi_task *task) +{ + struct iscsi_tcp_task *tcp_task = task->dd_data; + struct iscsi_r2t_info *r2t; + + /* nothing to do for mgmt or pending tasks */ + if (!task->sc || task->state == ISCSI_TASK_PENDING) + return; + + /* flush task's r2t queues */ + while (__kfifo_get(tcp_task->r2tqueue, (void*)&r2t, sizeof(void*))) { + __kfifo_put(tcp_task->r2tpool.queue, (void*)&r2t, + sizeof(void*)); + debug_scsi("iscsi_tcp_cleanup_task pending r2t dropped\n"); + } + + r2t = tcp_task->r2t; + if (r2t != NULL) { + __kfifo_put(tcp_task->r2tpool.queue, (void*)&r2t, + sizeof(void*)); + tcp_task->r2t = NULL; + } +} +EXPORT_SYMBOL_GPL(iscsi_tcp_cleanup_task); + +/** + * iscsi_tcp_data_in - SCSI Data-In Response processing + * @conn: iscsi connection + * @task: scsi command task + */ +static int iscsi_tcp_data_in(struct iscsi_conn *conn, struct iscsi_task *task) +{ + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_tcp_task *tcp_task = task->dd_data; + struct iscsi_data_rsp *rhdr = (struct iscsi_data_rsp *)tcp_conn->in.hdr; + int datasn = be32_to_cpu(rhdr->datasn); + unsigned total_in_length = scsi_in(task->sc)->length; + + iscsi_update_cmdsn(conn->session, (struct iscsi_nopin*)rhdr); + if (tcp_conn->in.datalen == 0) + return 0; + + if (tcp_task->exp_datasn != datasn) { + debug_tcp("%s: task->exp_datasn(%d) != rhdr->datasn(%d)\n", + __func__, tcp_task->exp_datasn, datasn); + return ISCSI_ERR_DATASN; + } + + tcp_task->exp_datasn++; + + tcp_task->data_offset = be32_to_cpu(rhdr->offset); + if (tcp_task->data_offset + tcp_conn->in.datalen > total_in_length) { + debug_tcp("%s: data_offset(%d) + data_len(%d) > total_length_in(%d)\n", + __func__, tcp_task->data_offset, + tcp_conn->in.datalen, total_in_length); + return ISCSI_ERR_DATA_OFFSET; + } + + conn->datain_pdus_cnt++; + return 0; +} + +/** + * iscsi_tcp_r2t_rsp - iSCSI R2T Response processing + * @conn: iscsi connection + * @task: scsi command task + */ +static int iscsi_tcp_r2t_rsp(struct iscsi_conn *conn, struct iscsi_task *task) +{ + struct iscsi_session *session = conn->session; + struct iscsi_tcp_task *tcp_task = task->dd_data; + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_r2t_rsp *rhdr = (struct iscsi_r2t_rsp *)tcp_conn->in.hdr; + struct iscsi_r2t_info *r2t; + int r2tsn = be32_to_cpu(rhdr->r2tsn); + int rc; + + if (tcp_conn->in.datalen) { + iscsi_conn_printk(KERN_ERR, conn, + "invalid R2t with datalen %d\n", + tcp_conn->in.datalen); + return ISCSI_ERR_DATALEN; + } + + if (tcp_task->exp_datasn != r2tsn){ + debug_tcp("%s: task->exp_datasn(%d) != rhdr->r2tsn(%d)\n", + __func__, tcp_task->exp_datasn, r2tsn); + return ISCSI_ERR_R2TSN; + } + + /* fill-in new R2T associated with the task */ + iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr); + + if (!task->sc || session->state != ISCSI_STATE_LOGGED_IN) { + iscsi_conn_printk(KERN_INFO, conn, + "dropping R2T itt %d in recovery.\n", + task->itt); + return 0; + } + + rc = __kfifo_get(tcp_task->r2tpool.queue, (void*)&r2t, sizeof(void*)); + if (!rc) { + iscsi_conn_printk(KERN_ERR, conn, "Could not allocate R2T. " + "Target has sent more R2Ts than it " + "negotiated for or driver has has leaked.\n"); + return ISCSI_ERR_PROTO; + } + + r2t->exp_statsn = rhdr->statsn; + r2t->data_length = be32_to_cpu(rhdr->data_length); + if (r2t->data_length == 0) { + iscsi_conn_printk(KERN_ERR, conn, + "invalid R2T with zero data len\n"); + __kfifo_put(tcp_task->r2tpool.queue, (void*)&r2t, + sizeof(void*)); + return ISCSI_ERR_DATALEN; + } + + if (r2t->data_length > session->max_burst) + debug_scsi("invalid R2T with data len %u and max burst %u." + "Attempting to execute request.\n", + r2t->data_length, session->max_burst); + + r2t->data_offset = be32_to_cpu(rhdr->data_offset); + if (r2t->data_offset + r2t->data_length > scsi_out(task->sc)->length) { + iscsi_conn_printk(KERN_ERR, conn, + "invalid R2T with data len %u at offset %u " + "and total length %d\n", r2t->data_length, + r2t->data_offset, scsi_out(task->sc)->length); + __kfifo_put(tcp_task->r2tpool.queue, (void*)&r2t, + sizeof(void*)); + return ISCSI_ERR_DATALEN; + } + + r2t->ttt = rhdr->ttt; /* no flip */ + r2t->datasn = 0; + r2t->sent = 0; + + tcp_task->exp_datasn = r2tsn + 1; + __kfifo_put(tcp_task->r2tqueue, (void*)&r2t, sizeof(void*)); + conn->r2t_pdus_cnt++; + + iscsi_requeue_task(task); + return 0; +} + +/* + * Handle incoming reply to DataIn command + */ +static int +iscsi_tcp_process_data_in(struct iscsi_tcp_conn *tcp_conn, + struct iscsi_segment *segment) +{ + struct iscsi_conn *conn = tcp_conn->iscsi_conn; + struct iscsi_hdr *hdr = tcp_conn->in.hdr; + int rc; + + if (!iscsi_tcp_dgst_verify(tcp_conn, segment)) + return ISCSI_ERR_DATA_DGST; + + /* check for non-exceptional status */ + if (hdr->flags & ISCSI_FLAG_DATA_STATUS) { + rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, NULL, 0); + if (rc) + return rc; + } + + iscsi_tcp_hdr_recv_prep(tcp_conn); + return 0; +} + +/** + * iscsi_tcp_hdr_dissect - process PDU header + * @conn: iSCSI connection + * @hdr: PDU header + * + * This function analyzes the header of the PDU received, + * and performs several sanity checks. If the PDU is accompanied + * by data, the receive buffer is set up to copy the incoming data + * to the correct location. + */ +static int +iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr) +{ + int rc = 0, opcode, ahslen; + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_task *task; + + /* verify PDU length */ + tcp_conn->in.datalen = ntoh24(hdr->dlength); + if (tcp_conn->in.datalen > conn->max_recv_dlength) { + iscsi_conn_printk(KERN_ERR, conn, + "iscsi_tcp: datalen %d > %d\n", + tcp_conn->in.datalen, conn->max_recv_dlength); + return ISCSI_ERR_DATALEN; + } + + /* Additional header segments. So far, we don't + * process additional headers. + */ + ahslen = hdr->hlength << 2; + + opcode = hdr->opcode & ISCSI_OPCODE_MASK; + /* verify itt (itt encoding: age+cid+itt) */ + rc = iscsi_verify_itt(conn, hdr->itt); + if (rc) + return rc; + + debug_tcp("opcode 0x%x ahslen %d datalen %d\n", + opcode, ahslen, tcp_conn->in.datalen); + + switch(opcode) { + case ISCSI_OP_SCSI_DATA_IN: + spin_lock(&conn->session->lock); + task = iscsi_itt_to_ctask(conn, hdr->itt); + if (!task) + rc = ISCSI_ERR_BAD_ITT; + else + rc = iscsi_tcp_data_in(conn, task); + if (rc) { + spin_unlock(&conn->session->lock); + break; + } + + if (tcp_conn->in.datalen) { + struct iscsi_tcp_task *tcp_task = task->dd_data; + struct hash_desc *rx_hash = NULL; + struct scsi_data_buffer *sdb = scsi_in(task->sc); + + /* + * Setup copy of Data-In into the Scsi_Cmnd + * Scatterlist case: + * We set up the iscsi_segment to point to the next + * scatterlist entry to copy to. As we go along, + * we move on to the next scatterlist entry and + * update the digest per-entry. + */ + if (conn->datadgst_en && + !(conn->session->tt->caps & CAP_DIGEST_OFFLOAD)) + rx_hash = tcp_conn->rx_hash; + + debug_tcp("iscsi_tcp_begin_data_in(%p, offset=%d, " + "datalen=%d)\n", tcp_conn, + tcp_task->data_offset, + tcp_conn->in.datalen); + rc = iscsi_segment_seek_sg(&tcp_conn->in.segment, + sdb->table.sgl, + sdb->table.nents, + tcp_task->data_offset, + tcp_conn->in.datalen, + iscsi_tcp_process_data_in, + rx_hash); + spin_unlock(&conn->session->lock); + return rc; + } + rc = __iscsi_complete_pdu(conn, hdr, NULL, 0); + spin_unlock(&conn->session->lock); + break; + case ISCSI_OP_SCSI_CMD_RSP: + if (tcp_conn->in.datalen) { + iscsi_tcp_data_recv_prep(tcp_conn); + return 0; + } + rc = iscsi_complete_pdu(conn, hdr, NULL, 0); + break; + case ISCSI_OP_R2T: + spin_lock(&conn->session->lock); + task = iscsi_itt_to_ctask(conn, hdr->itt); + if (!task) + rc = ISCSI_ERR_BAD_ITT; + else if (ahslen) + rc = ISCSI_ERR_AHSLEN; + else if (task->sc->sc_data_direction == DMA_TO_DEVICE) + rc = iscsi_tcp_r2t_rsp(conn, task); + else + rc = ISCSI_ERR_PROTO; + spin_unlock(&conn->session->lock); + break; + case ISCSI_OP_LOGIN_RSP: + case ISCSI_OP_TEXT_RSP: + case ISCSI_OP_REJECT: + case ISCSI_OP_ASYNC_EVENT: + /* + * It is possible that we could get a PDU with a buffer larger + * than 8K, but there are no targets that currently do this. + * For now we fail until we find a vendor that needs it + */ + if (ISCSI_DEF_MAX_RECV_SEG_LEN < tcp_conn->in.datalen) { + iscsi_conn_printk(KERN_ERR, conn, + "iscsi_tcp: received buffer of " + "len %u but conn buffer is only %u " + "(opcode %0x)\n", + tcp_conn->in.datalen, + ISCSI_DEF_MAX_RECV_SEG_LEN, opcode); + rc = ISCSI_ERR_PROTO; + break; + } + + /* If there's data coming in with the response, + * receive it to the connection's buffer. + */ + if (tcp_conn->in.datalen) { + iscsi_tcp_data_recv_prep(tcp_conn); + return 0; + } + /* fall through */ + case ISCSI_OP_LOGOUT_RSP: + case ISCSI_OP_NOOP_IN: + case ISCSI_OP_SCSI_TMFUNC_RSP: + rc = iscsi_complete_pdu(conn, hdr, NULL, 0); + break; + default: + rc = ISCSI_ERR_BAD_OPCODE; + break; + } + + if (rc == 0) { + /* Anything that comes with data should have + * been handled above. */ + if (tcp_conn->in.datalen) + return ISCSI_ERR_PROTO; + iscsi_tcp_hdr_recv_prep(tcp_conn); + } + + return rc; +} + +/** + * iscsi_tcp_hdr_recv_done - process PDU header + * + * This is the callback invoked when the PDU header has + * been received. If the header is followed by additional + * header segments, we go back for more data. + */ +static int +iscsi_tcp_hdr_recv_done(struct iscsi_tcp_conn *tcp_conn, + struct iscsi_segment *segment) +{ + struct iscsi_conn *conn = tcp_conn->iscsi_conn; + struct iscsi_hdr *hdr; + + /* Check if there are additional header segments + * *prior* to computing the digest, because we + * may need to go back to the caller for more. + */ + hdr = (struct iscsi_hdr *) tcp_conn->in.hdr_buf; + if (segment->copied == sizeof(struct iscsi_hdr) && hdr->hlength) { + /* Bump the header length - the caller will + * just loop around and get the AHS for us, and + * call again. */ + unsigned int ahslen = hdr->hlength << 2; + + /* Make sure we don't overflow */ + if (sizeof(*hdr) + ahslen > sizeof(tcp_conn->in.hdr_buf)) + return ISCSI_ERR_AHSLEN; + + segment->total_size += ahslen; + segment->size += ahslen; + return 0; + } + + /* We're done processing the header. See if we're doing + * header digests; if so, set up the recv_digest buffer + * and go back for more. */ + if (conn->hdrdgst_en && + !(conn->session->tt->caps & CAP_DIGEST_OFFLOAD)) { + if (segment->digest_len == 0) { + /* + * Even if we offload the digest processing we + * splice it in so we can increment the skb/segment + * counters in preparation for the data segment. + */ + iscsi_tcp_segment_splice_digest(segment, + segment->recv_digest); + return 0; + } + + iscsi_tcp_dgst_header(tcp_conn->rx_hash, hdr, + segment->total_copied - ISCSI_DIGEST_SIZE, + segment->digest); + + if (!iscsi_tcp_dgst_verify(tcp_conn, segment)) + return ISCSI_ERR_HDR_DGST; + } + + tcp_conn->in.hdr = hdr; + return iscsi_tcp_hdr_dissect(conn, hdr); +} + +/** + * iscsi_tcp_recv_segment_is_hdr - tests if we are reading in a header + * @tcp_conn: iscsi tcp conn + * + * returns non zero if we are currently processing or setup to process + * a header. + */ +inline int iscsi_tcp_recv_segment_is_hdr(struct iscsi_tcp_conn *tcp_conn) +{ + return tcp_conn->in.segment.done == iscsi_tcp_hdr_recv_done; +} +EXPORT_SYMBOL_GPL(iscsi_tcp_recv_segment_is_hdr); + +/** + * iscsi_tcp_recv_skb - Process skb + * @conn: iscsi connection + * @skb: network buffer with header and/or data segment + * @offset: offset in skb + * @offload: bool indicating if transfer was offloaded + * + * Will return status of transfer in status. And will return + * number of bytes copied. + */ +int iscsi_tcp_recv_skb(struct iscsi_conn *conn, struct sk_buff *skb, + unsigned int offset, bool offloaded, int *status) +{ + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct iscsi_segment *segment = &tcp_conn->in.segment; + struct skb_seq_state seq; + unsigned int consumed = 0; + int rc = 0; + + debug_tcp("in %d bytes\n", skb->len - offset); + + if (unlikely(conn->suspend_rx)) { + debug_tcp("conn %d Rx suspended!\n", conn->id); + *status = ISCSI_TCP_SUSPENDED; + return 0; + } + + if (offloaded) { + segment->total_copied = segment->total_size; + goto segment_done; + } + + skb_prepare_seq_read(skb, offset, skb->len, &seq); + while (1) { + unsigned int avail; + const u8 *ptr; + + avail = skb_seq_read(consumed, &ptr, &seq); + if (avail == 0) { + debug_tcp("no more data avail. Consumed %d\n", + consumed); + *status = ISCSI_TCP_SKB_DONE; + skb_abort_seq_read(&seq); + goto skb_done; + } + BUG_ON(segment->copied >= segment->size); + + debug_tcp("skb %p ptr=%p avail=%u\n", skb, ptr, avail); + rc = iscsi_tcp_segment_recv(tcp_conn, segment, ptr, avail); + BUG_ON(rc == 0); + consumed += rc; + + if (segment->total_copied >= segment->total_size) { + skb_abort_seq_read(&seq); + goto segment_done; + } + } + +segment_done: + *status = ISCSI_TCP_SEGMENT_DONE; + debug_tcp("segment done\n"); + rc = segment->done(tcp_conn, segment); + if (rc != 0) { + *status = ISCSI_TCP_CONN_ERR; + debug_tcp("Error receiving PDU, errno=%d\n", rc); + iscsi_conn_failure(conn, rc); + return 0; + } + /* The done() functions sets up the next segment. */ + +skb_done: + conn->rxdata_octets += consumed; + return consumed; +} +EXPORT_SYMBOL_GPL(iscsi_tcp_recv_skb); + +/** + * iscsi_tcp_task_init - Initialize iSCSI SCSI_READ or SCSI_WRITE commands + * @conn: iscsi connection + * @task: scsi command task + * @sc: scsi command + */ +int iscsi_tcp_task_init(struct iscsi_task *task) +{ + struct iscsi_tcp_task *tcp_task = task->dd_data; + struct iscsi_conn *conn = task->conn; + struct scsi_cmnd *sc = task->sc; + int err; + + if (!sc) { + /* + * mgmt tasks do not have a scatterlist since they come + * in from the iscsi interface. + */ + debug_scsi("mtask deq [cid %d itt 0x%x]\n", conn->id, + task->itt); + + return conn->session->tt->init_pdu(task, 0, task->data_count); + } + + BUG_ON(__kfifo_len(tcp_task->r2tqueue)); + tcp_task->exp_datasn = 0; + + /* Prepare PDU, optionally w/ immediate data */ + debug_scsi("task deq [cid %d itt 0x%x imm %d unsol %d]\n", + conn->id, task->itt, task->imm_count, + task->unsol_r2t.data_length); + + err = conn->session->tt->init_pdu(task, 0, task->imm_count); + if (err) + return err; + task->imm_count = 0; + return 0; +} +EXPORT_SYMBOL_GPL(iscsi_tcp_task_init); + +static struct iscsi_r2t_info *iscsi_tcp_get_curr_r2t(struct iscsi_task *task) +{ + struct iscsi_session *session = task->conn->session; + struct iscsi_tcp_task *tcp_task = task->dd_data; + struct iscsi_r2t_info *r2t = NULL; + + if (iscsi_task_has_unsol_data(task)) + r2t = &task->unsol_r2t; + else { + spin_lock_bh(&session->lock); + if (tcp_task->r2t) { + r2t = tcp_task->r2t; + /* Continue with this R2T? */ + if (r2t->data_length <= r2t->sent) { + debug_scsi(" done with r2t %p\n", r2t); + __kfifo_put(tcp_task->r2tpool.queue, + (void *)&tcp_task->r2t, + sizeof(void *)); + tcp_task->r2t = r2t = NULL; + } + } + + if (r2t == NULL) { + __kfifo_get(tcp_task->r2tqueue, + (void *)&tcp_task->r2t, sizeof(void *)); + r2t = tcp_task->r2t; + } + spin_unlock_bh(&session->lock); + } + + return r2t; +} + +/** + * iscsi_tcp_task_xmit - xmit normal PDU task + * @task: iscsi command task + * + * We're expected to return 0 when everything was transmitted succesfully, + * -EAGAIN if there's still data in the queue, or != 0 for any other kind + * of error. + */ +int iscsi_tcp_task_xmit(struct iscsi_task *task) +{ + struct iscsi_conn *conn = task->conn; + struct iscsi_session *session = conn->session; + struct iscsi_r2t_info *r2t; + int rc = 0; + +flush: + /* Flush any pending data first. */ + rc = session->tt->xmit_pdu(task); + if (rc < 0) + return rc; + + /* mgmt command */ + if (!task->sc) { + if (task->hdr->itt == RESERVED_ITT) + iscsi_put_task(task); + return 0; + } + + /* Are we done already? */ + if (task->sc->sc_data_direction != DMA_TO_DEVICE) + return 0; + + r2t = iscsi_tcp_get_curr_r2t(task); + if (r2t == NULL) { + /* Waiting for more R2Ts to arrive. */ + debug_tcp("no R2Ts yet\n"); + return 0; + } + + rc = conn->session->tt->alloc_pdu(task, ISCSI_OP_SCSI_DATA_OUT); + if (rc) + return rc; + iscsi_prep_data_out_pdu(task, r2t, (struct iscsi_data *) task->hdr); + + debug_scsi("sol dout %p [dsn %d itt 0x%x doff %d dlen %d]\n", + r2t, r2t->datasn - 1, task->hdr->itt, + r2t->data_offset + r2t->sent, r2t->data_count); + + rc = conn->session->tt->init_pdu(task, r2t->data_offset + r2t->sent, + r2t->data_count); + if (rc) + return rc; + r2t->sent += r2t->data_count; + goto flush; +} +EXPORT_SYMBOL_GPL(iscsi_tcp_task_xmit); + +struct iscsi_cls_conn * +iscsi_tcp_conn_setup(struct iscsi_cls_session *cls_session, int dd_data_size, + uint32_t conn_idx) + +{ + struct iscsi_conn *conn; + struct iscsi_cls_conn *cls_conn; + struct iscsi_tcp_conn *tcp_conn; + + cls_conn = iscsi_conn_setup(cls_session, sizeof(*tcp_conn), conn_idx); + if (!cls_conn) + return NULL; + conn = cls_conn->dd_data; + /* + * due to strange issues with iser these are not set + * in iscsi_conn_setup + */ + conn->max_recv_dlength = ISCSI_DEF_MAX_RECV_SEG_LEN; + + tcp_conn = conn->dd_data; + tcp_conn->iscsi_conn = conn; + + tcp_conn->dd_data = kzalloc(dd_data_size, GFP_KERNEL); + if (!tcp_conn->dd_data) { + iscsi_conn_teardown(cls_conn); + return NULL; + } + return cls_conn; +} +EXPORT_SYMBOL_GPL(iscsi_tcp_conn_setup); + +void iscsi_tcp_conn_teardown(struct iscsi_cls_conn *cls_conn) +{ + struct iscsi_conn *conn = cls_conn->dd_data; + struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + + kfree(tcp_conn->dd_data); + iscsi_conn_teardown(cls_conn); +} +EXPORT_SYMBOL_GPL(iscsi_tcp_conn_teardown); + +int iscsi_tcp_r2tpool_alloc(struct iscsi_session *session) +{ + int i; + int cmd_i; + + /* + * initialize per-task: R2T pool and xmit queue + */ + for (cmd_i = 0; cmd_i < session->cmds_max; cmd_i++) { + struct iscsi_task *task = session->cmds[cmd_i]; + struct iscsi_tcp_task *tcp_task = task->dd_data; + + /* + * pre-allocated x2 as much r2ts to handle race when + * target acks DataOut faster than we data_xmit() queues + * could replenish r2tqueue. + */ + + /* R2T pool */ + if (iscsi_pool_init(&tcp_task->r2tpool, + session->max_r2t * 2, NULL, + sizeof(struct iscsi_r2t_info))) { + goto r2t_alloc_fail; + } + + /* R2T xmit queue */ + tcp_task->r2tqueue = kfifo_alloc( + session->max_r2t * 4 * sizeof(void*), GFP_KERNEL, NULL); + if (tcp_task->r2tqueue == ERR_PTR(-ENOMEM)) { + iscsi_pool_free(&tcp_task->r2tpool); + goto r2t_alloc_fail; + } + } + + return 0; + +r2t_alloc_fail: + for (i = 0; i < cmd_i; i++) { + struct iscsi_task *task = session->cmds[i]; + struct iscsi_tcp_task *tcp_task = task->dd_data; + + kfifo_free(tcp_task->r2tqueue); + iscsi_pool_free(&tcp_task->r2tpool); + } + return -ENOMEM; +} +EXPORT_SYMBOL_GPL(iscsi_tcp_r2tpool_alloc); + +void iscsi_tcp_r2tpool_free(struct iscsi_session *session) +{ + int i; + + for (i = 0; i < session->cmds_max; i++) { + struct iscsi_task *task = session->cmds[i]; + struct iscsi_tcp_task *tcp_task = task->dd_data; + + kfifo_free(tcp_task->r2tqueue); + iscsi_pool_free(&tcp_task->r2tpool); + } +} +EXPORT_SYMBOL_GPL(iscsi_tcp_r2tpool_free); + +void iscsi_tcp_conn_get_stats(struct iscsi_cls_conn *cls_conn, + struct iscsi_stats *stats) +{ + struct iscsi_conn *conn = cls_conn->dd_data; + + stats->txdata_octets = conn->txdata_octets; + stats->rxdata_octets = conn->rxdata_octets; + stats->scsicmd_pdus = conn->scsicmd_pdus_cnt; + stats->dataout_pdus = conn->dataout_pdus_cnt; + stats->scsirsp_pdus = conn->scsirsp_pdus_cnt; + stats->datain_pdus = conn->datain_pdus_cnt; + stats->r2t_pdus = conn->r2t_pdus_cnt; + stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt; + stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt; +} +EXPORT_SYMBOL_GPL(iscsi_tcp_conn_get_stats); diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 60a9e6e..dcba267 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -29,8 +29,10 @@ struct lpfc_sli2_slim; #define LPFC_MAX_NS_RETRY 3 /* Number of retry attempts to contact the NameServer before giving up. */ #define LPFC_CMD_PER_LUN 3 /* max outstanding cmds per lun */ -#define LPFC_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ -#define LPFC_MAX_SG_SEG_CNT 256 /* sg element count per scsi cmnd */ +#define LPFC_DEFAULT_SG_SEG_CNT 64 /* sg element count per scsi cmnd */ +#define LPFC_DEFAULT_PROT_SG_SEG_CNT 4096 /* sg protection elements count */ +#define LPFC_MAX_SG_SEG_CNT 4096 /* sg element count per scsi cmnd */ +#define LPFC_MAX_PROT_SG_SEG_CNT 4096 /* prot sg element count per scsi cmd*/ #define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ #define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ #define LPFC_VNAME_LEN 100 /* vport symbolic name length */ @@ -354,8 +356,6 @@ struct lpfc_vport { uint8_t load_flag; #define FC_LOADING 0x1 /* HBA in process of loading drvr */ #define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */ - char *vname; /* Application assigned name */ - /* Vport Config Parameters */ uint32_t cfg_scan_down; uint32_t cfg_lun_queue_depth; @@ -376,7 +376,7 @@ struct lpfc_vport { struct fc_vport *fc_vport; -#ifdef CONFIG_LPFC_DEBUG_FS +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS struct dentry *debug_disc_trc; struct dentry *debug_nodelist; struct dentry *vport_debugfs_root; @@ -428,6 +428,7 @@ struct lpfc_hba { #define LPFC_SLI3_VPORT_TEARDOWN 0x04 #define LPFC_SLI3_CRP_ENABLED 0x08 #define LPFC_SLI3_INB_ENABLED 0x10 +#define LPFC_SLI3_BG_ENABLED 0x20 uint32_t iocb_cmd_size; uint32_t iocb_rsp_size; @@ -501,12 +502,14 @@ struct lpfc_hba { uint32_t cfg_poll_tmo; uint32_t cfg_use_msi; uint32_t cfg_sg_seg_cnt; + uint32_t cfg_prot_sg_seg_cnt; uint32_t cfg_sg_dma_buf_size; uint64_t cfg_soft_wwnn; uint64_t cfg_soft_wwpn; uint32_t cfg_hba_queue_depth; uint32_t cfg_enable_hba_reset; uint32_t cfg_enable_hba_heartbeat; + uint32_t cfg_enable_bg; lpfc_vpd_t vpd; /* vital product data */ @@ -572,6 +575,9 @@ struct lpfc_hba { uint64_t fc4InputRequests; uint64_t fc4OutputRequests; uint64_t fc4ControlRequests; + uint64_t bg_guard_err_cnt; + uint64_t bg_apptag_err_cnt; + uint64_t bg_reftag_err_cnt; struct lpfc_sysfs_mbox sysfs_mbox; @@ -594,6 +600,8 @@ struct lpfc_hba { struct fc_host_statistics link_stats; enum intr_type_t intr_type; + uint32_t intr_mode; +#define LPFC_INTR_ERROR 0xFFFFFFFF struct msix_entry msix_entries[LPFC_MSIX_VECTORS]; struct list_head port_list; @@ -613,12 +621,14 @@ struct lpfc_hba { unsigned long last_rsrc_error_time; unsigned long last_ramp_down_time; unsigned long last_ramp_up_time; -#ifdef CONFIG_LPFC_DEBUG_FS +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS struct dentry *hba_debugfs_root; atomic_t debugfs_vport_count; struct dentry *debug_hbqinfo; struct dentry *debug_dumpHostSlim; struct dentry *debug_dumpHBASlim; + struct dentry *debug_dumpData; /* BlockGuard BPL*/ + struct dentry *debug_dumpDif; /* BlockGuard BPL*/ struct dentry *debug_slow_ring_trc; struct lpfc_debugfs_trc *slow_ring_trc; atomic_t slow_ring_trc_cnt; diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index aa3d627..40cf0f4 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -96,6 +96,61 @@ lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); } +static ssize_t +lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + if (phba->cfg_enable_bg) + if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) + return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n"); + else + return snprintf(buf, PAGE_SIZE, + "BlockGuard Not Supported\n"); + else + return snprintf(buf, PAGE_SIZE, + "BlockGuard Disabled\n"); +} + +static ssize_t +lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return snprintf(buf, PAGE_SIZE, "%llu\n", + (unsigned long long)phba->bg_guard_err_cnt); +} + +static ssize_t +lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return snprintf(buf, PAGE_SIZE, "%llu\n", + (unsigned long long)phba->bg_apptag_err_cnt); +} + +static ssize_t +lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return snprintf(buf, PAGE_SIZE, "%llu\n", + (unsigned long long)phba->bg_reftag_err_cnt); +} + /** * lpfc_info_show: Return some pci info about the host in ascii. * @dev: class converted to a Scsi_host structure. @@ -1485,6 +1540,10 @@ lpfc_vport_param_store(name)\ static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\ lpfc_##name##_show, lpfc_##name##_store) +static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); +static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); +static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); +static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); @@ -1970,6 +2029,7 @@ static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR, # LOG_LINK_EVENT 0x10 Link events # LOG_FCP 0x40 FCP traffic history # LOG_NODE 0x80 Node table events +# LOG_BG 0x200 BlockBuard events # LOG_MISC 0x400 Miscellaneous events # LOG_SLI 0x800 SLI events # LOG_FCP_ERROR 0x1000 Only log FCP errors @@ -2769,6 +2829,42 @@ LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver."); LPFC_ATTR_R(enable_hba_heartbeat, 1, 0, 1, "Enable HBA Heartbeat."); /* +# lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) +# 0 = BlockGuard disabled (default) +# 1 = BlockGuard enabled +# Value range is [0,1]. Default value is 0. +*/ +LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); + + +/* +# lpfc_prot_mask: i +# - Bit mask of host protection capabilities used to register with the +# SCSI mid-layer +# - Only meaningful if BG is turned on (lpfc_enable_bg=1). +# - Allows you to ultimately specify which profiles to use +# - Default will result in registering capabilities for all profiles. +# +*/ +unsigned int lpfc_prot_mask = SHOST_DIX_TYPE0_PROTECTION; + +module_param(lpfc_prot_mask, uint, 0); +MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask"); + +/* +# lpfc_prot_guard: i +# - Bit mask of protection guard types to register with the SCSI mid-layer +# - Guard types are currently either 1) IP checksum 2) T10-DIF CRC +# - Allows you to ultimately specify which profiles to use +# - Default will result in registering capabilities for all guard types +# +*/ +unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP; +module_param(lpfc_prot_guard, byte, 0); +MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type"); + + +/* * lpfc_sg_seg_cnt: Initial Maximum DMA Segment Count * This value can be set to values between 64 and 256. The default value is * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer @@ -2777,7 +2873,15 @@ LPFC_ATTR_R(enable_hba_heartbeat, 1, 0, 1, "Enable HBA Heartbeat."); LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count"); +LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_PROT_SG_SEG_CNT, + LPFC_DEFAULT_PROT_SG_SEG_CNT, LPFC_MAX_PROT_SG_SEG_CNT, + "Max Protection Scatter Gather Segment Count"); + struct device_attribute *lpfc_hba_attrs[] = { + &dev_attr_bg_info, + &dev_attr_bg_guard_err, + &dev_attr_bg_apptag_err, + &dev_attr_bg_reftag_err, &dev_attr_info, &dev_attr_serialnum, &dev_attr_modeldesc, @@ -2825,6 +2929,7 @@ struct device_attribute *lpfc_hba_attrs[] = { &dev_attr_lpfc_poll, &dev_attr_lpfc_poll_tmo, &dev_attr_lpfc_use_msi, + &dev_attr_lpfc_enable_bg, &dev_attr_lpfc_soft_wwnn, &dev_attr_lpfc_soft_wwpn, &dev_attr_lpfc_soft_wwn_enable, @@ -2833,6 +2938,7 @@ struct device_attribute *lpfc_hba_attrs[] = { &dev_attr_lpfc_sg_seg_cnt, &dev_attr_lpfc_max_scsicmpl_time, &dev_attr_lpfc_stat_data_ctrl, + &dev_attr_lpfc_prot_sg_seg_cnt, NULL, }; @@ -3282,25 +3388,28 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) int error; error = sysfs_create_bin_file(&shost->shost_dev.kobj, - &sysfs_ctlreg_attr); - if (error) + &sysfs_drvr_stat_data_attr); + + /* Virtual ports do not need ctrl_reg and mbox */ + if (error || vport->port_type == LPFC_NPIV_PORT) goto out; error = sysfs_create_bin_file(&shost->shost_dev.kobj, - &sysfs_mbox_attr); + &sysfs_ctlreg_attr); if (error) - goto out_remove_ctlreg_attr; + goto out_remove_stat_attr; error = sysfs_create_bin_file(&shost->shost_dev.kobj, - &sysfs_drvr_stat_data_attr); + &sysfs_mbox_attr); if (error) - goto out_remove_mbox_attr; + goto out_remove_ctlreg_attr; return 0; -out_remove_mbox_attr: - sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); out_remove_ctlreg_attr: sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); +out_remove_stat_attr: + sysfs_remove_bin_file(&shost->shost_dev.kobj, + &sysfs_drvr_stat_data_attr); out: return error; } @@ -3315,6 +3424,9 @@ lpfc_free_sysfs_attr(struct lpfc_vport *vport) struct Scsi_Host *shost = lpfc_shost_from_vport(vport); sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_drvr_stat_data_attr); + /* Virtual ports do not need ctrl_reg and mbox */ + if (vport->port_type == LPFC_NPIV_PORT) + return; sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); } @@ -3792,6 +3904,23 @@ lpfc_show_rport_##field (struct device *dev, \ lpfc_rport_show_function(field, format_string, sz, ) \ static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) +/** + * lpfc_set_vport_symbolic_name: Set the vport's symbolic name. + * @fc_vport: The fc_vport who's symbolic name has been changed. + * + * Description: + * This function is called by the transport after the @fc_vport's symbolic name + * has been changed. This function re-registers the symbolic name with the + * switch to propogate the change into the fabric if the vport is active. + **/ +static void +lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) +{ + struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; + + if (vport->port_state == LPFC_VPORT_READY) + lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); +} struct fc_function_template lpfc_transport_functions = { /* fixed attributes the driver supports */ @@ -3801,6 +3930,7 @@ struct fc_function_template lpfc_transport_functions = { .show_host_supported_fc4s = 1, .show_host_supported_speeds = 1, .show_host_maxframe_size = 1, + .show_host_symbolic_name = 1, /* dynamic attributes the driver supports */ .get_host_port_id = lpfc_get_host_port_id, @@ -3850,6 +3980,10 @@ struct fc_function_template lpfc_transport_functions = { .terminate_rport_io = lpfc_terminate_rport_io, .dd_fcvport_size = sizeof(struct lpfc_vport *), + + .vport_disable = lpfc_vport_disable, + + .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, }; struct fc_function_template lpfc_vport_transport_functions = { @@ -3860,6 +3994,7 @@ struct fc_function_template lpfc_vport_transport_functions = { .show_host_supported_fc4s = 1, .show_host_supported_speeds = 1, .show_host_maxframe_size = 1, + .show_host_symbolic_name = 1, /* dynamic attributes the driver supports */ .get_host_port_id = lpfc_get_host_port_id, @@ -3908,6 +4043,8 @@ struct fc_function_template lpfc_vport_transport_functions = { .terminate_rport_io = lpfc_terminate_rport_io, .vport_disable = lpfc_vport_disable, + + .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, }; /** @@ -3930,13 +4067,12 @@ lpfc_get_cfgparam(struct lpfc_hba *phba) lpfc_use_msi_init(phba, lpfc_use_msi); lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); + lpfc_enable_bg_init(phba, lpfc_enable_bg); phba->cfg_poll = lpfc_poll; phba->cfg_soft_wwnn = 0L; phba->cfg_soft_wwpn = 0L; lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); - /* Also reinitialize the host templates with new values. */ - lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; - lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; + lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt); /* * Since the sg_tablesize is module parameter, the sg_dma_buf_size * used to create the sg_dma_buf_pool must be dynamically calculated. @@ -3945,6 +4081,17 @@ lpfc_get_cfgparam(struct lpfc_hba *phba) phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); + + if (phba->cfg_enable_bg) { + phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; + phba->cfg_sg_dma_buf_size += + phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); + } + + /* Also reinitialize the host templates with new values. */ + lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; + lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; + lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); return; } diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index 044ef40..07f4976 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -22,6 +22,7 @@ typedef int (*node_filter)(struct lpfc_nodelist *, void *); struct fc_rport; void lpfc_dump_mem(struct lpfc_hba *, LPFC_MBOXQ_t *, uint16_t); +void lpfc_dump_wakeup_param(struct lpfc_hba *, LPFC_MBOXQ_t *); void lpfc_read_nv(struct lpfc_hba *, LPFC_MBOXQ_t *); void lpfc_config_async(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); @@ -284,12 +285,24 @@ extern void lpfc_debugfs_slow_ring_trc(struct lpfc_hba *, char *, uint32_t, uint32_t, uint32_t); extern struct lpfc_hbq_init *lpfc_hbq_defs[]; +/* externs BlockGuard */ +extern char *_dump_buf_data; +extern unsigned long _dump_buf_data_order; +extern char *_dump_buf_dif; +extern unsigned long _dump_buf_dif_order; +extern spinlock_t _dump_buf_lock; +extern int _dump_buf_done; +extern spinlock_t pgcnt_lock; +extern unsigned int pgcnt; +extern unsigned int lpfc_prot_mask; +extern unsigned char lpfc_prot_guard; + /* Interface exported by fabric iocb scheduler */ void lpfc_fabric_abort_nport(struct lpfc_nodelist *); void lpfc_fabric_abort_hba(struct lpfc_hba *); void lpfc_fabric_block_timeout(unsigned long); void lpfc_unblock_fabric_iocbs(struct lpfc_hba *); -void lpfc_adjust_queue_depth(struct lpfc_hba *); +void lpfc_rampdown_queue_depth(struct lpfc_hba *); void lpfc_ramp_down_queue_handler(struct lpfc_hba *); void lpfc_ramp_up_queue_handler(struct lpfc_hba *); void lpfc_scsi_dev_block(struct lpfc_hba *); diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c index 26dae8b..896c7b0 100644 --- a/drivers/scsi/lpfc/lpfc_ct.c +++ b/drivers/scsi/lpfc/lpfc_ct.c @@ -560,18 +560,25 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_ns_retry); /* Don't bother processing response if vport is being torn down. */ - if (vport->load_flag & FC_UNLOADING) + if (vport->load_flag & FC_UNLOADING) { + if (vport->fc_flag & FC_RSCN_MODE) + lpfc_els_flush_rscn(vport); goto out; + } if (lpfc_els_chk_latt(vport)) { lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0216 Link event during NS query\n"); + if (vport->fc_flag & FC_RSCN_MODE) + lpfc_els_flush_rscn(vport); lpfc_vport_set_state(vport, FC_VPORT_FAILED); goto out; } if (lpfc_error_lost_link(irsp)) { lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, "0226 NS query failed due to link event\n"); + if (vport->fc_flag & FC_RSCN_MODE) + lpfc_els_flush_rscn(vport); goto out; } if (irsp->ulpStatus) { @@ -587,6 +594,8 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, if (rc == 0) goto out; } + if (vport->fc_flag & FC_RSCN_MODE) + lpfc_els_flush_rscn(vport); lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, "0257 GID_FT Query error: 0x%x 0x%x\n", @@ -1008,8 +1017,10 @@ lpfc_vport_symbolic_port_name(struct lpfc_vport *vport, char *symbol, if (n < size) n += snprintf(symbol + n, size - n, " VPort-%d", vport->vpi); - if (n < size && vport->vname) - n += snprintf(symbol + n, size - n, " VName-%s", vport->vname); + if (n < size && + strlen(vport->fc_vport->symbolic_name)) + n += snprintf(symbol + n, size - n, " VName-%s", + vport->fc_vport->symbolic_name); return n; } diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index 771920b..b615eda 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -46,7 +46,7 @@ #include "lpfc_compat.h" #include "lpfc_debugfs.h" -#ifdef CONFIG_LPFC_DEBUG_FS +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS /** * debugfs interface * @@ -618,7 +618,7 @@ inline void lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, uint32_t data1, uint32_t data2, uint32_t data3) { -#ifdef CONFIG_LPFC_DEBUG_FS +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS struct lpfc_debugfs_trc *dtp; int index; @@ -659,7 +659,7 @@ inline void lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, uint32_t data1, uint32_t data2, uint32_t data3) { -#ifdef CONFIG_LPFC_DEBUG_FS +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS struct lpfc_debugfs_trc *dtp; int index; @@ -680,7 +680,7 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, return; } -#ifdef CONFIG_LPFC_DEBUG_FS +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS /** * lpfc_debugfs_disc_trc_open - Open the discovery trace log. * @inode: The inode pointer that contains a vport pointer. @@ -907,6 +907,91 @@ out: return rc; } +static int +lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file) +{ + struct lpfc_debug *debug; + int rc = -ENOMEM; + + if (!_dump_buf_data) + return -EBUSY; + + debug = kmalloc(sizeof(*debug), GFP_KERNEL); + if (!debug) + goto out; + + /* Round to page boundry */ + printk(KERN_ERR "BLKGRD %s: _dump_buf_data=0x%p\n", + __func__, _dump_buf_data); + debug->buffer = _dump_buf_data; + if (!debug->buffer) { + kfree(debug); + goto out; + } + + debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT; + file->private_data = debug; + + rc = 0; +out: + return rc; +} + +static int +lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file) +{ + struct lpfc_debug *debug; + int rc = -ENOMEM; + + if (!_dump_buf_dif) + return -EBUSY; + + debug = kmalloc(sizeof(*debug), GFP_KERNEL); + if (!debug) + goto out; + + /* Round to page boundry */ + printk(KERN_ERR "BLKGRD %s: _dump_buf_dif=0x%p file=%s\n", __func__, + _dump_buf_dif, file->f_dentry->d_name.name); + debug->buffer = _dump_buf_dif; + if (!debug->buffer) { + kfree(debug); + goto out; + } + + debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT; + file->private_data = debug; + + rc = 0; +out: + return rc; +} + +static ssize_t +lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf, + size_t nbytes, loff_t *ppos) +{ + /* + * The Data/DIF buffers only save one failing IO + * The write op is used as a reset mechanism after an IO has + * already been saved to the next one can be saved + */ + spin_lock(&_dump_buf_lock); + + memset((void *)_dump_buf_data, 0, + ((1 << PAGE_SHIFT) << _dump_buf_data_order)); + memset((void *)_dump_buf_dif, 0, + ((1 << PAGE_SHIFT) << _dump_buf_dif_order)); + + _dump_buf_done = 0; + + spin_unlock(&_dump_buf_lock); + + return nbytes; +} + + + /** * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file. * @inode: The inode pointer that contains a vport pointer. @@ -1035,6 +1120,17 @@ lpfc_debugfs_release(struct inode *inode, struct file *file) return 0; } +static int +lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file) +{ + struct lpfc_debug *debug = file->private_data; + + debug->buffer = NULL; + kfree(debug); + + return 0; +} + #undef lpfc_debugfs_op_disc_trc static struct file_operations lpfc_debugfs_op_disc_trc = { .owner = THIS_MODULE, @@ -1080,6 +1176,26 @@ static struct file_operations lpfc_debugfs_op_dumpHostSlim = { .release = lpfc_debugfs_release, }; +#undef lpfc_debugfs_op_dumpData +static struct file_operations lpfc_debugfs_op_dumpData = { + .owner = THIS_MODULE, + .open = lpfc_debugfs_dumpData_open, + .llseek = lpfc_debugfs_lseek, + .read = lpfc_debugfs_read, + .write = lpfc_debugfs_dumpDataDif_write, + .release = lpfc_debugfs_dumpDataDif_release, +}; + +#undef lpfc_debugfs_op_dumpDif +static struct file_operations lpfc_debugfs_op_dumpDif = { + .owner = THIS_MODULE, + .open = lpfc_debugfs_dumpDif_open, + .llseek = lpfc_debugfs_lseek, + .read = lpfc_debugfs_read, + .write = lpfc_debugfs_dumpDataDif_write, + .release = lpfc_debugfs_dumpDataDif_release, +}; + #undef lpfc_debugfs_op_slow_ring_trc static struct file_operations lpfc_debugfs_op_slow_ring_trc = { .owner = THIS_MODULE, @@ -1106,7 +1222,7 @@ static atomic_t lpfc_debugfs_hba_count; inline void lpfc_debugfs_initialize(struct lpfc_vport *vport) { -#ifdef CONFIG_LPFC_DEBUG_FS +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS struct lpfc_hba *phba = vport->phba; char name[64]; uint32_t num, i; @@ -1176,6 +1292,32 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) goto debug_failed; } + /* Setup dumpData */ + snprintf(name, sizeof(name), "dumpData"); + phba->debug_dumpData = + debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, + phba->hba_debugfs_root, + phba, &lpfc_debugfs_op_dumpData); + if (!phba->debug_dumpData) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "0800 Cannot create debugfs dumpData\n"); + goto debug_failed; + } + + /* Setup dumpDif */ + snprintf(name, sizeof(name), "dumpDif"); + phba->debug_dumpDif = + debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR, + phba->hba_debugfs_root, + phba, &lpfc_debugfs_op_dumpDif); + if (!phba->debug_dumpDif) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "0801 Cannot create debugfs dumpDif\n"); + goto debug_failed; + } + + + /* Setup slow ring trace */ if (lpfc_debugfs_max_slow_ring_trc) { num = lpfc_debugfs_max_slow_ring_trc - 1; @@ -1305,7 +1447,7 @@ debug_failed: inline void lpfc_debugfs_terminate(struct lpfc_vport *vport) { -#ifdef CONFIG_LPFC_DEBUG_FS +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS struct lpfc_hba *phba = vport->phba; if (vport->disc_trc) { @@ -1340,6 +1482,16 @@ lpfc_debugfs_terminate(struct lpfc_vport *vport) debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ phba->debug_dumpHostSlim = NULL; } + if (phba->debug_dumpData) { + debugfs_remove(phba->debug_dumpData); /* dumpData */ + phba->debug_dumpData = NULL; + } + + if (phba->debug_dumpDif) { + debugfs_remove(phba->debug_dumpDif); /* dumpDif */ + phba->debug_dumpDif = NULL; + } + if (phba->slow_ring_trc) { kfree(phba->slow_ring_trc); phba->slow_ring_trc = NULL; diff --git a/drivers/scsi/lpfc/lpfc_debugfs.h b/drivers/scsi/lpfc/lpfc_debugfs.h index 31e86a5..03c7313 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.h +++ b/drivers/scsi/lpfc/lpfc_debugfs.h @@ -21,7 +21,7 @@ #ifndef _H_LPFC_DEBUG_FS #define _H_LPFC_DEBUG_FS -#ifdef CONFIG_LPFC_DEBUG_FS +#ifdef CONFIG_SCSI_LPFC_DEBUG_FS struct lpfc_debugfs_trc { char *fmt; uint32_t data1; diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 630bd28..a8f30bd 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -221,7 +221,11 @@ lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, /* For ELS_REQUEST64_CR, use the VPI by default */ icmd->ulpContext = vport->vpi; icmd->ulpCt_h = 0; - icmd->ulpCt_l = 1; + /* The CT field must be 0=INVALID_RPI for the ECHO cmd */ + if (elscmd == ELS_CMD_ECHO) + icmd->ulpCt_l = 0; /* context = invalid RPI */ + else + icmd->ulpCt_l = 1; /* context = VPI */ } bpl = (struct ulp_bde64 *) pbuflist->virt; @@ -271,7 +275,8 @@ lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, return elsiocb; els_iocb_free_pbuf_exit: - lpfc_mbuf_free(phba, prsp->virt, prsp->phys); + if (expectRsp) + lpfc_mbuf_free(phba, prsp->virt, prsp->phys); kfree(pbuflist); els_iocb_free_prsp_exit: @@ -2468,6 +2473,15 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, case IOSTAT_LOCAL_REJECT: switch ((irsp->un.ulpWord[4] & 0xff)) { case IOERR_LOOP_OPEN_FAILURE: + if (cmd == ELS_CMD_FLOGI) { + if (PCI_DEVICE_ID_HORNET == + phba->pcidev->device) { + phba->fc_topology = TOPOLOGY_LOOP; + phba->pport->fc_myDID = 0; + phba->alpa_map[0] = 0; + phba->alpa_map[1] = 0; + } + } if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0) delay = 1000; retry = 1; @@ -3823,27 +3837,21 @@ lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) while (payload_len) { rscn_did.un.word = be32_to_cpu(*lp++); payload_len -= sizeof(uint32_t); - switch (rscn_did.un.b.resv) { - case 0: /* Single N_Port ID effected */ + switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) { + case RSCN_ADDRESS_FORMAT_PORT: if (ns_did.un.word == rscn_did.un.word) goto return_did_out; break; - case 1: /* Whole N_Port Area effected */ + case RSCN_ADDRESS_FORMAT_AREA: if ((ns_did.un.b.domain == rscn_did.un.b.domain) && (ns_did.un.b.area == rscn_did.un.b.area)) goto return_did_out; break; - case 2: /* Whole N_Port Domain effected */ + case RSCN_ADDRESS_FORMAT_DOMAIN: if (ns_did.un.b.domain == rscn_did.un.b.domain) goto return_did_out; break; - default: - /* Unknown Identifier in RSCN node */ - lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, - "0217 Unknown Identifier in " - "RSCN payload Data: x%x\n", - rscn_did.un.word); - case 3: /* Whole Fabric effected */ + case RSCN_ADDRESS_FORMAT_FABRIC: goto return_did_out; } } @@ -3887,6 +3895,49 @@ lpfc_rscn_recovery_check(struct lpfc_vport *vport) } /** + * lpfc_send_rscn_event: Send an RSCN event to management application. + * @vport: pointer to a host virtual N_Port data structure. + * @cmdiocb: pointer to lpfc command iocb data structure. + * + * lpfc_send_rscn_event sends an RSCN netlink event to management + * applications. + */ +static void +lpfc_send_rscn_event(struct lpfc_vport *vport, + struct lpfc_iocbq *cmdiocb) +{ + struct lpfc_dmabuf *pcmd; + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); + uint32_t *payload_ptr; + uint32_t payload_len; + struct lpfc_rscn_event_header *rscn_event_data; + + pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; + payload_ptr = (uint32_t *) pcmd->virt; + payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK); + + rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) + + payload_len, GFP_KERNEL); + if (!rscn_event_data) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, + "0147 Failed to allocate memory for RSCN event\n"); + return; + } + rscn_event_data->event_type = FC_REG_RSCN_EVENT; + rscn_event_data->payload_length = payload_len; + memcpy(rscn_event_data->rscn_payload, payload_ptr, + payload_len); + + fc_host_post_vendor_event(shost, + fc_get_event_number(), + sizeof(struct lpfc_els_event_header) + payload_len, + (char *)rscn_event_data, + LPFC_NL_VENDOR_ID); + + kfree(rscn_event_data); +} + +/** * lpfc_els_rcv_rscn: Process an unsolicited rscn iocb. * @vport: pointer to a host virtual N_Port data structure. * @cmdiocb: pointer to lpfc command iocb data structure. @@ -3933,6 +3984,10 @@ lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, "0214 RSCN received Data: x%x x%x x%x x%x\n", vport->fc_flag, payload_len, *lp, vport->fc_rscn_id_cnt); + + /* Send an RSCN event to the management application */ + lpfc_send_rscn_event(vport, cmdiocb); + for (i = 0; i < payload_len/sizeof(uint32_t); i++) fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_RSCN, lp[i]); @@ -4884,10 +4939,6 @@ lpfc_els_timeout_handler(struct lpfc_vport *vport) uint32_t timeout; uint32_t remote_ID = 0xffffffff; - /* If the timer is already canceled do nothing */ - if ((vport->work_port_events & WORKER_ELS_TMO) == 0) { - return; - } spin_lock_irq(&phba->hbalock); timeout = (uint32_t)(phba->fc_ratov << 1); @@ -5128,7 +5179,7 @@ lpfc_send_els_failure_event(struct lpfc_hba *phba, fc_get_event_number(), sizeof(lsrjt_event), (char *)&lsrjt_event, - SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); + LPFC_NL_VENDOR_ID); return; } if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) || @@ -5146,7 +5197,7 @@ lpfc_send_els_failure_event(struct lpfc_hba *phba, fc_get_event_number(), sizeof(fabric_event), (char *)&fabric_event, - SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); + LPFC_NL_VENDOR_ID); return; } @@ -5164,32 +5215,68 @@ lpfc_send_els_failure_event(struct lpfc_hba *phba, static void lpfc_send_els_event(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, - uint32_t cmd) + uint32_t *payload) { - struct lpfc_els_event_header els_data; + struct lpfc_els_event_header *els_data = NULL; + struct lpfc_logo_event *logo_data = NULL; struct Scsi_Host *shost = lpfc_shost_from_vport(vport); - els_data.event_type = FC_REG_ELS_EVENT; - switch (cmd) { + if (*payload == ELS_CMD_LOGO) { + logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL); + if (!logo_data) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, + "0148 Failed to allocate memory " + "for LOGO event\n"); + return; + } + els_data = &logo_data->header; + } else { + els_data = kmalloc(sizeof(struct lpfc_els_event_header), + GFP_KERNEL); + if (!els_data) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, + "0149 Failed to allocate memory " + "for ELS event\n"); + return; + } + } + els_data->event_type = FC_REG_ELS_EVENT; + switch (*payload) { case ELS_CMD_PLOGI: - els_data.subcategory = LPFC_EVENT_PLOGI_RCV; + els_data->subcategory = LPFC_EVENT_PLOGI_RCV; break; case ELS_CMD_PRLO: - els_data.subcategory = LPFC_EVENT_PRLO_RCV; + els_data->subcategory = LPFC_EVENT_PRLO_RCV; break; case ELS_CMD_ADISC: - els_data.subcategory = LPFC_EVENT_ADISC_RCV; + els_data->subcategory = LPFC_EVENT_ADISC_RCV; + break; + case ELS_CMD_LOGO: + els_data->subcategory = LPFC_EVENT_LOGO_RCV; + /* Copy the WWPN in the LOGO payload */ + memcpy(logo_data->logo_wwpn, &payload[2], + sizeof(struct lpfc_name)); break; default: return; } - memcpy(els_data.wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); - memcpy(els_data.wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); - fc_host_post_vendor_event(shost, - fc_get_event_number(), - sizeof(els_data), - (char *)&els_data, - SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); + memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name)); + memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name)); + if (*payload == ELS_CMD_LOGO) { + fc_host_post_vendor_event(shost, + fc_get_event_number(), + sizeof(struct lpfc_logo_event), + (char *)logo_data, + LPFC_NL_VENDOR_ID); + kfree(logo_data); + } else { + fc_host_post_vendor_event(shost, + fc_get_event_number(), + sizeof(struct lpfc_els_event_header), + (char *)els_data, + LPFC_NL_VENDOR_ID); + kfree(els_data); + } return; } @@ -5296,7 +5383,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, phba->fc_stat.elsRcvPLOGI++; ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); - lpfc_send_els_event(vport, ndlp, cmd); + lpfc_send_els_event(vport, ndlp, payload); if (vport->port_state < LPFC_DISC_AUTH) { if (!(phba->pport->fc_flag & FC_PT2PT) || (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { @@ -5334,6 +5421,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvLOGO++; + lpfc_send_els_event(vport, ndlp, payload); if (vport->port_state < LPFC_DISC_AUTH) { rjt_err = LSRJT_UNABLE_TPC; break; @@ -5346,7 +5434,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, did, vport->port_state, ndlp->nlp_flag); phba->fc_stat.elsRcvPRLO++; - lpfc_send_els_event(vport, ndlp, cmd); + lpfc_send_els_event(vport, ndlp, payload); if (vport->port_state < LPFC_DISC_AUTH) { rjt_err = LSRJT_UNABLE_TPC; break; @@ -5364,7 +5452,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, "RCV ADISC: did:x%x/ste:x%x flg:x%x", did, vport->port_state, ndlp->nlp_flag); - lpfc_send_els_event(vport, ndlp, cmd); + lpfc_send_els_event(vport, ndlp, payload); phba->fc_stat.elsRcvADISC++; if (vport->port_state < LPFC_DISC_AUTH) { rjt_err = LSRJT_UNABLE_TPC; diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index a1a70d9..8c64494 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -350,7 +350,7 @@ lpfc_send_fastpath_evt(struct lpfc_hba *phba, evt_data_size = sizeof(fast_evt_data->un. read_check_error); } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) || - (evt_sub_category == IOSTAT_NPORT_BSY)) { + (evt_sub_category == LPFC_EVENT_PORT_BUSY)) { evt_data = (char *) &fast_evt_data->un.fabric_evt; evt_data_size = sizeof(fast_evt_data->un.fabric_evt); } else { @@ -387,7 +387,7 @@ lpfc_send_fastpath_evt(struct lpfc_hba *phba, fc_get_event_number(), evt_data_size, evt_data, - SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); + LPFC_NL_VENDOR_ID); lpfc_free_fast_evt(phba, fast_evt_data); return; @@ -585,20 +585,25 @@ lpfc_do_work(void *p) set_user_nice(current, -20); phba->data_flags = 0; - while (1) { + while (!kthread_should_stop()) { /* wait and check worker queue activities */ rc = wait_event_interruptible(phba->work_waitq, (test_and_clear_bit(LPFC_DATA_READY, &phba->data_flags) || kthread_should_stop())); - BUG_ON(rc); - - if (kthread_should_stop()) + /* Signal wakeup shall terminate the worker thread */ + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_ELS, + "0433 Wakeup on signal: rc=x%x\n", rc); break; + } /* Attend pending lpfc data processing */ lpfc_work_done(phba); } + phba->worker_thread = NULL; + lpfc_printf_log(phba, KERN_INFO, LOG_ELS, + "0432 Worker thread stopped.\n"); return 0; } @@ -1852,6 +1857,32 @@ lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state, NLP_STE_UNUSED_NODE); } +/** + * lpfc_initialize_node: Initialize all fields of node object. + * @vport: Pointer to Virtual Port object. + * @ndlp: Pointer to FC node object. + * @did: FC_ID of the node. + * This function is always called when node object need to + * be initialized. It initializes all the fields of the node + * object. + **/ +static inline void +lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, + uint32_t did) +{ + INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); + INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); + init_timer(&ndlp->nlp_delayfunc); + ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; + ndlp->nlp_delayfunc.data = (unsigned long)ndlp; + ndlp->nlp_DID = did; + ndlp->vport = vport; + ndlp->nlp_sid = NLP_NO_SID; + kref_init(&ndlp->kref); + NLP_INT_NODE_ACT(ndlp); + atomic_set(&ndlp->cmd_pending, 0); + ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH; +} struct lpfc_nodelist * lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, @@ -1892,17 +1923,7 @@ lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, /* re-initialize ndlp except of ndlp linked list pointer */ memset((((char *)ndlp) + sizeof (struct list_head)), 0, sizeof (struct lpfc_nodelist) - sizeof (struct list_head)); - INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); - INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); - init_timer(&ndlp->nlp_delayfunc); - ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; - ndlp->nlp_delayfunc.data = (unsigned long)ndlp; - ndlp->nlp_DID = did; - ndlp->vport = vport; - ndlp->nlp_sid = NLP_NO_SID; - /* ndlp management re-initialize */ - kref_init(&ndlp->kref); - NLP_INT_NODE_ACT(ndlp); + lpfc_initialize_node(vport, ndlp, did); spin_unlock_irqrestore(&phba->ndlp_lock, flags); @@ -3116,19 +3137,9 @@ lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, uint32_t did) { memset(ndlp, 0, sizeof (struct lpfc_nodelist)); - INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); - INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); - init_timer(&ndlp->nlp_delayfunc); - ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; - ndlp->nlp_delayfunc.data = (unsigned long)ndlp; - ndlp->nlp_DID = did; - ndlp->vport = vport; - ndlp->nlp_sid = NLP_NO_SID; + + lpfc_initialize_node(vport, ndlp, did); INIT_LIST_HEAD(&ndlp->nlp_listp); - kref_init(&ndlp->kref); - NLP_INT_NODE_ACT(ndlp); - atomic_set(&ndlp->cmd_pending, 0); - ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH; lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, "node init: did:x%x", diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index 5de5dab..4168c7b 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -65,6 +65,9 @@ #define SLI3_IOCB_RSP_SIZE 64 +/* vendor ID used in SCSI netlink calls */ +#define LPFC_NL_VENDOR_ID (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX) + /* Common Transport structures and definitions */ union CtRevisionId { @@ -866,6 +869,12 @@ typedef struct _D_ID { /* Structure is in Big Endian format */ } un; } D_ID; +#define RSCN_ADDRESS_FORMAT_PORT 0x0 +#define RSCN_ADDRESS_FORMAT_AREA 0x1 +#define RSCN_ADDRESS_FORMAT_DOMAIN 0x2 +#define RSCN_ADDRESS_FORMAT_FABRIC 0x3 +#define RSCN_ADDRESS_FORMAT_MASK 0x3 + /* * Structure to define all ELS Payload types */ @@ -1535,6 +1544,108 @@ typedef struct ULP_BDL { /* SLI-2 */ uint32_t ulpIoTag32; /* Can be used for 32 bit I/O Tag */ } ULP_BDL; +/* + * BlockGuard Definitions + */ + +enum lpfc_protgrp_type { + LPFC_PG_TYPE_INVALID = 0, /* used to indicate errors */ + LPFC_PG_TYPE_NO_DIF, /* no DIF data pointed to by prot grp */ + LPFC_PG_TYPE_EMBD_DIF, /* DIF is embedded (inline) with data */ + LPFC_PG_TYPE_DIF_BUF /* DIF has its own scatter/gather list */ +}; + +/* PDE Descriptors */ +#define LPFC_PDE1_DESCRIPTOR 0x81 +#define LPFC_PDE2_DESCRIPTOR 0x82 +#define LPFC_PDE3_DESCRIPTOR 0x83 + +/* BlockGuard Profiles */ +enum lpfc_bg_prof_codes { + LPFC_PROF_INVALID, + LPFC_PROF_A1 = 128, /* Full Protection */ + LPFC_PROF_A2, /* Disabled Protection Checks:A2~A4 */ + LPFC_PROF_A3, + LPFC_PROF_A4, + LPFC_PROF_B1, /* Embedded DIFs: B1~B3 */ + LPFC_PROF_B2, + LPFC_PROF_B3, + LPFC_PROF_C1, /* Separate DIFs: C1~C3 */ + LPFC_PROF_C2, + LPFC_PROF_C3, + LPFC_PROF_D1, /* Full Protection */ + LPFC_PROF_D2, /* Partial Protection & Check Disabling */ + LPFC_PROF_D3, + LPFC_PROF_E1, /* E1~E4:out - check-only, in - update apptag */ + LPFC_PROF_E2, + LPFC_PROF_E3, + LPFC_PROF_E4, + LPFC_PROF_F1, /* Full Translation - F1 Prot Descriptor */ + /* F1 Translation BDE */ + LPFC_PROF_ANT1, /* TCP checksum, DIF inline with data buffers */ + LPFC_PROF_AST1, /* TCP checksum, DIF split from data buffer */ + LPFC_PROF_ANT2, + LPFC_PROF_AST2 +}; + +/* BlockGuard error-control defines */ +#define BG_EC_STOP_ERR 0x00 +#define BG_EC_CONT_ERR 0x01 +#define BG_EC_IGN_UNINIT_STOP_ERR 0x10 +#define BG_EC_IGN_UNINIT_CONT_ERR 0x11 + +/* PDE (Protection Descriptor Entry) word 0 bit masks and shifts */ +#define PDE_DESC_TYPE_MASK 0xff000000 +#define PDE_DESC_TYPE_SHIFT 24 +#define PDE_BG_PROFILE_MASK 0x00ff0000 +#define PDE_BG_PROFILE_SHIFT 16 +#define PDE_BLOCK_LEN_MASK 0x0000fffc +#define PDE_BLOCK_LEN_SHIFT 2 +#define PDE_ERR_CTRL_MASK 0x00000003 +#define PDE_ERR_CTRL_SHIFT 0 +/* PDE word 1 bit masks and shifts */ +#define PDE_APPTAG_MASK_MASK 0xffff0000 +#define PDE_APPTAG_MASK_SHIFT 16 +#define PDE_APPTAG_VAL_MASK 0x0000ffff +#define PDE_APPTAG_VAL_SHIFT 0 +struct lpfc_pde { + uint32_t parms; /* bitfields of descriptor, prof, len, and ec */ + uint32_t apptag; /* bitfields of app tag maskand app tag value */ + uint32_t reftag; /* reference tag occupying all 32 bits */ +}; + +/* inline function to set fields in parms of PDE */ +static inline void +lpfc_pde_set_bg_parms(struct lpfc_pde *p, u8 desc, u8 prof, u16 len, u8 ec) +{ + uint32_t *wp = &p->parms; + + /* spec indicates that adapter appends two 0's to length field */ + len = len >> 2; + + *wp &= 0; + *wp |= ((desc << PDE_DESC_TYPE_SHIFT) & PDE_DESC_TYPE_MASK); + *wp |= ((prof << PDE_BG_PROFILE_SHIFT) & PDE_BG_PROFILE_MASK); + *wp |= ((len << PDE_BLOCK_LEN_SHIFT) & PDE_BLOCK_LEN_MASK); + *wp |= ((ec << PDE_ERR_CTRL_SHIFT) & PDE_ERR_CTRL_MASK); + *wp = le32_to_cpu(*wp); +} + +/* inline function to set apptag and reftag fields of PDE */ +static inline void +lpfc_pde_set_dif_parms(struct lpfc_pde *p, u16 apptagmask, u16 apptagval, + u32 reftag) +{ + uint32_t *wp = &p->apptag; + *wp &= 0; + *wp |= ((apptagmask << PDE_APPTAG_MASK_SHIFT) & PDE_APPTAG_MASK_MASK); + *wp |= ((apptagval << PDE_APPTAG_VAL_SHIFT) & PDE_APPTAG_VAL_MASK); + *wp = le32_to_cpu(*wp); + wp = &p->reftag; + *wp = le32_to_cpu(reftag); +} + + /* Structure for MB Command LOAD_SM and DOWN_LOAD */ typedef struct { @@ -2359,6 +2470,30 @@ typedef struct { #define DMP_RSP_OFFSET 0x14 /* word 5 contains first word of rsp */ #define DMP_RSP_SIZE 0x6C /* maximum of 27 words of rsp data */ +#define WAKE_UP_PARMS_REGION_ID 4 +#define WAKE_UP_PARMS_WORD_SIZE 15 + +/* Option rom version structure */ +struct prog_id { +#ifdef __BIG_ENDIAN_BITFIELD + uint8_t type; + uint8_t id; + uint32_t ver:4; /* Major Version */ + uint32_t rev:4; /* Revision */ + uint32_t lev:2; /* Level */ + uint32_t dist:2; /* Dist Type */ + uint32_t num:4; /* number after dist type */ +#else /* __LITTLE_ENDIAN_BITFIELD */ + uint32_t num:4; /* number after dist type */ + uint32_t dist:2; /* Dist Type */ + uint32_t lev:2; /* Level */ + uint32_t rev:4; /* Revision */ + uint32_t ver:4; /* Major Version */ + uint8_t id; + uint8_t type; +#endif +}; + /* Structure for MB Command UPDATE_CFG (0x1B) */ struct update_cfg_var { @@ -2552,11 +2687,19 @@ typedef struct { uint32_t pcbLow; /* bit 31:0 of memory based port config block */ uint32_t pcbHigh; /* bit 63:32 of memory based port config block */ - uint32_t hbainit[6]; + uint32_t hbainit[5]; +#ifdef __BIG_ENDIAN_BITFIELD + uint32_t hps : 1; /* bit 31 word9 Host Pointer in slim */ + uint32_t rsvd : 31; /* least significant 31 bits of word 9 */ +#else /* __LITTLE_ENDIAN */ + uint32_t rsvd : 31; /* least significant 31 bits of word 9 */ + uint32_t hps : 1; /* bit 31 word9 Host Pointer in slim */ +#endif #ifdef __BIG_ENDIAN_BITFIELD - uint32_t rsvd : 24; /* Reserved */ - uint32_t cmv : 1; /* Configure Max VPIs */ + uint32_t rsvd1 : 23; /* Reserved */ + uint32_t cbg : 1; /* Configure BlockGuard */ + uint32_t cmv : 1; /* Configure Max VPIs */ uint32_t ccrp : 1; /* Config Command Ring Polling */ uint32_t csah : 1; /* Configure Synchronous Abort Handling */ uint32_t chbs : 1; /* Cofigure Host Backing store */ @@ -2573,10 +2716,12 @@ typedef struct { uint32_t csah : 1; /* Configure Synchronous Abort Handling */ uint32_t ccrp : 1; /* Config Command Ring Polling */ uint32_t cmv : 1; /* Configure Max VPIs */ - uint32_t rsvd : 24; /* Reserved */ + uint32_t cbg : 1; /* Configure BlockGuard */ + uint32_t rsvd1 : 23; /* Reserved */ #endif #ifdef __BIG_ENDIAN_BITFIELD - uint32_t rsvd2 : 24; /* Reserved */ + uint32_t rsvd2 : 23; /* Reserved */ + uint32_t gbg : 1; /* Grant BlockGuard */ uint32_t gmv : 1; /* Grant Max VPIs */ uint32_t gcrp : 1; /* Grant Command Ring Polling */ uint32_t gsah : 1; /* Grant Synchronous Abort Handling */ @@ -2594,7 +2739,8 @@ typedef struct { uint32_t gsah : 1; /* Grant Synchronous Abort Handling */ uint32_t gcrp : 1; /* Grant Command Ring Polling */ uint32_t gmv : 1; /* Grant Max VPIs */ - uint32_t rsvd2 : 24; /* Reserved */ + uint32_t gbg : 1; /* Grant BlockGuard */ + uint32_t rsvd2 : 23; /* Reserved */ #endif #ifdef __BIG_ENDIAN_BITFIELD @@ -3214,6 +3360,94 @@ struct que_xri64cx_ext_fields { struct lpfc_hbq_entry buff[5]; }; +struct sli3_bg_fields { + uint32_t filler[6]; /* word 8-13 in IOCB */ + uint32_t bghm; /* word 14 - BlockGuard High Water Mark */ +/* Bitfields for bgstat (BlockGuard Status - word 15 of IOCB) */ +#define BGS_BIDIR_BG_PROF_MASK 0xff000000 +#define BGS_BIDIR_BG_PROF_SHIFT 24 +#define BGS_BIDIR_ERR_COND_FLAGS_MASK 0x003f0000 +#define BGS_BIDIR_ERR_COND_SHIFT 16 +#define BGS_BG_PROFILE_MASK 0x0000ff00 +#define BGS_BG_PROFILE_SHIFT 8 +#define BGS_INVALID_PROF_MASK 0x00000020 +#define BGS_INVALID_PROF_SHIFT 5 +#define BGS_UNINIT_DIF_BLOCK_MASK 0x00000010 +#define BGS_UNINIT_DIF_BLOCK_SHIFT 4 +#define BGS_HI_WATER_MARK_PRESENT_MASK 0x00000008 +#define BGS_HI_WATER_MARK_PRESENT_SHIFT 3 +#define BGS_REFTAG_ERR_MASK 0x00000004 +#define BGS_REFTAG_ERR_SHIFT 2 +#define BGS_APPTAG_ERR_MASK 0x00000002 +#define BGS_APPTAG_ERR_SHIFT 1 +#define BGS_GUARD_ERR_MASK 0x00000001 +#define BGS_GUARD_ERR_SHIFT 0 + uint32_t bgstat; /* word 15 - BlockGuard Status */ +}; + +static inline uint32_t +lpfc_bgs_get_bidir_bg_prof(uint32_t bgstat) +{ + return (le32_to_cpu(bgstat) & BGS_BIDIR_BG_PROF_MASK) >> + BGS_BIDIR_BG_PROF_SHIFT; +} + +static inline uint32_t +lpfc_bgs_get_bidir_err_cond(uint32_t bgstat) +{ + return (le32_to_cpu(bgstat) & BGS_BIDIR_ERR_COND_FLAGS_MASK) >> + BGS_BIDIR_ERR_COND_SHIFT; +} + +static inline uint32_t +lpfc_bgs_get_bg_prof(uint32_t bgstat) +{ + return (le32_to_cpu(bgstat) & BGS_BG_PROFILE_MASK) >> + BGS_BG_PROFILE_SHIFT; +} + +static inline uint32_t +lpfc_bgs_get_invalid_prof(uint32_t bgstat) +{ + return (le32_to_cpu(bgstat) & BGS_INVALID_PROF_MASK) >> + BGS_INVALID_PROF_SHIFT; +} + +static inline uint32_t +lpfc_bgs_get_uninit_dif_block(uint32_t bgstat) +{ + return (le32_to_cpu(bgstat) & BGS_UNINIT_DIF_BLOCK_MASK) >> + BGS_UNINIT_DIF_BLOCK_SHIFT; +} + +static inline uint32_t +lpfc_bgs_get_hi_water_mark_present(uint32_t bgstat) +{ + return (le32_to_cpu(bgstat) & BGS_HI_WATER_MARK_PRESENT_MASK) >> + BGS_HI_WATER_MARK_PRESENT_SHIFT; +} + +static inline uint32_t +lpfc_bgs_get_reftag_err(uint32_t bgstat) +{ + return (le32_to_cpu(bgstat) & BGS_REFTAG_ERR_MASK) >> + BGS_REFTAG_ERR_SHIFT; +} + +static inline uint32_t +lpfc_bgs_get_apptag_err(uint32_t bgstat) +{ + return (le32_to_cpu(bgstat) & BGS_APPTAG_ERR_MASK) >> + BGS_APPTAG_ERR_SHIFT; +} + +static inline uint32_t +lpfc_bgs_get_guard_err(uint32_t bgstat) +{ + return (le32_to_cpu(bgstat) & BGS_GUARD_ERR_MASK) >> + BGS_GUARD_ERR_SHIFT; +} + #define LPFC_EXT_DATA_BDE_COUNT 3 struct fcp_irw_ext { uint32_t io_tag64_low; @@ -3322,6 +3556,9 @@ typedef struct _IOCB { /* IOCB structure */ struct que_xri64cx_ext_fields que_xri64cx_ext_words; struct fcp_irw_ext fcp_ext; uint32_t sli3Words[24]; /* 96 extra bytes for SLI-3 */ + + /* words 8-15 for BlockGuard */ + struct sli3_bg_fields sli3_bg; } unsli3; #define ulpCt_h ulpXS diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 909be33..4c77038 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -45,6 +45,12 @@ #include "lpfc_vport.h" #include "lpfc_version.h" +char *_dump_buf_data; +unsigned long _dump_buf_data_order; +char *_dump_buf_dif; +unsigned long _dump_buf_dif_order; +spinlock_t _dump_buf_lock; + static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int); static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); static int lpfc_post_rcv_buf(struct lpfc_hba *); @@ -236,6 +242,51 @@ lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) } /** + * lpfc_dump_wakeup_param_cmpl: Completion handler for dump memory mailbox + * command used for getting wake up parameters. + * @phba: pointer to lpfc hba data structure. + * @pmboxq: pointer to the driver internal queue element for mailbox command. + * + * This is the completion handler for dump mailbox command for getting + * wake up parameters. When this command complete, the response contain + * Option rom version of the HBA. This function translate the version number + * into a human readable string and store it in OptionROMVersion. + **/ +static void +lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) +{ + struct prog_id *prg; + uint32_t prog_id_word; + char dist = ' '; + /* character array used for decoding dist type. */ + char dist_char[] = "nabx"; + + if (pmboxq->mb.mbxStatus != MBX_SUCCESS) { + mempool_free(pmboxq, phba->mbox_mem_pool); + return; + } + + prg = (struct prog_id *) &prog_id_word; + + /* word 7 contain option rom version */ + prog_id_word = pmboxq->mb.un.varWords[7]; + + /* Decode the Option rom version word to a readable string */ + if (prg->dist < 4) + dist = dist_char[prg->dist]; + + if ((prg->dist == 3) && (prg->num == 0)) + sprintf(phba->OptionROMVersion, "%d.%d%d", + prg->ver, prg->rev, prg->lev); + else + sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", + prg->ver, prg->rev, prg->lev, + dist, prg->num); + mempool_free(pmboxq, phba->mbox_mem_pool); + return; +} + +/** * lpfc_config_port_post: Perform lpfc initialization after config port. * @phba: pointer to lpfc hba data structure. * @@ -482,6 +533,20 @@ lpfc_config_port_post(struct lpfc_hba *phba) rc); mempool_free(pmb, phba->mbox_mem_pool); } + + /* Get Option rom version */ + pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + lpfc_dump_wakeup_param(phba, pmb); + pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; + pmb->vport = phba->pport; + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); + + if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " + "to get Option ROM version status x%x\n.", rc); + mempool_free(pmb, phba->mbox_mem_pool); + } + return 0; } @@ -686,11 +751,6 @@ lpfc_hb_timeout_handler(struct lpfc_hba *phba) return; spin_lock_irq(&phba->pport->work_port_lock); - /* If the timer is already canceled do nothing */ - if (!(phba->pport->work_port_events & WORKER_HB_TMO)) { - spin_unlock_irq(&phba->pport->work_port_lock); - return; - } if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, jiffies)) { @@ -833,8 +893,7 @@ lpfc_handle_eratt(struct lpfc_hba *phba) fc_host_post_vendor_event(shost, fc_get_event_number(), sizeof(board_event), (char *) &board_event, - SCSI_NL_VID_TYPE_PCI - | PCI_VENDOR_ID_EMULEX); + LPFC_NL_VENDOR_ID); if (phba->work_hs & HS_FFER6) { /* Re-establishing Link */ @@ -1984,6 +2043,7 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) shost->max_lun = vport->cfg_max_luns; shost->this_id = -1; shost->max_cmd_len = 16; + /* * Set initial can_queue value since 0 is no longer supported and * scsi_add_host will fail. This will be adjusted later based on the @@ -2042,8 +2102,6 @@ destroy_port(struct lpfc_vport *vport) struct Scsi_Host *shost = lpfc_shost_from_vport(vport); struct lpfc_hba *phba = vport->phba; - kfree(vport->vname); - lpfc_debugfs_terminate(vport); fc_remove_host(shost); scsi_remove_host(shost); @@ -2226,8 +2284,7 @@ lpfc_enable_msix(struct lpfc_hba *phba) ARRAY_SIZE(phba->msix_entries)); if (rc) { lpfc_printf_log(phba, KERN_INFO, LOG_INIT, - "0420 Enable MSI-X failed (%d), continuing " - "with MSI\n", rc); + "0420 PCI enable MSI-X failed (%d)\n", rc); goto msi_fail_out; } else for (i = 0; i < LPFC_MSIX_VECTORS; i++) @@ -2244,9 +2301,9 @@ lpfc_enable_msix(struct lpfc_hba *phba) rc = request_irq(phba->msix_entries[0].vector, &lpfc_sp_intr_handler, IRQF_SHARED, LPFC_SP_DRIVER_HANDLER_NAME, phba); if (rc) { - lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, "0421 MSI-X slow-path request_irq failed " - "(%d), continuing with MSI\n", rc); + "(%d)\n", rc); goto msi_fail_out; } @@ -2255,9 +2312,9 @@ lpfc_enable_msix(struct lpfc_hba *phba) IRQF_SHARED, LPFC_FP_DRIVER_HANDLER_NAME, phba); if (rc) { - lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, "0429 MSI-X fast-path request_irq failed " - "(%d), continuing with MSI\n", rc); + "(%d)\n", rc); goto irq_fail_out; } @@ -2278,7 +2335,7 @@ lpfc_enable_msix(struct lpfc_hba *phba) goto mbx_fail_out; rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); if (rc != MBX_SUCCESS) { - lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, + lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, "0351 Config MSI mailbox command failed, " "mbxCmd x%x, mbxStatus x%x\n", pmb->mb.mbxCommand, pmb->mb.mbxStatus); @@ -2327,6 +2384,195 @@ lpfc_disable_msix(struct lpfc_hba *phba) } /** + * lpfc_enable_msi: Enable MSI interrupt mode. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to enable the MSI interrupt mode. The kernel + * function pci_enable_msi() is called to enable the MSI vector. The + * device driver is responsible for calling the request_irq() to register + * MSI vector with a interrupt the handler, which is done in this function. + * + * Return codes + * 0 - sucessful + * other values - error + */ +static int +lpfc_enable_msi(struct lpfc_hba *phba) +{ + int rc; + + rc = pci_enable_msi(phba->pcidev); + if (!rc) + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0462 PCI enable MSI mode success.\n"); + else { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0471 PCI enable MSI mode failed (%d)\n", rc); + return rc; + } + + rc = request_irq(phba->pcidev->irq, lpfc_intr_handler, + IRQF_SHARED, LPFC_DRIVER_NAME, phba); + if (rc) { + pci_disable_msi(phba->pcidev); + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0478 MSI request_irq failed (%d)\n", rc); + } + return rc; +} + +/** + * lpfc_disable_msi: Disable MSI interrupt mode. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to disable the MSI interrupt mode. The driver + * calls free_irq() on MSI vector it has done request_irq() on before + * calling pci_disable_msi(). Failure to do so results in a BUG_ON() and + * a device will be left with MSI enabled and leaks its vector. + */ + +static void +lpfc_disable_msi(struct lpfc_hba *phba) +{ + free_irq(phba->pcidev->irq, phba); + pci_disable_msi(phba->pcidev); + return; +} + +/** + * lpfc_log_intr_mode: Log the active interrupt mode + * @phba: pointer to lpfc hba data structure. + * @intr_mode: active interrupt mode adopted. + * + * This routine it invoked to log the currently used active interrupt mode + * to the device. + */ +static void +lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) +{ + switch (intr_mode) { + case 0: + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0470 Enable INTx interrupt mode.\n"); + break; + case 1: + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0481 Enabled MSI interrupt mode.\n"); + break; + case 2: + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0480 Enabled MSI-X interrupt mode.\n"); + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0482 Illegal interrupt mode.\n"); + break; + } + return; +} + +static void +lpfc_stop_port(struct lpfc_hba *phba) +{ + /* Clear all interrupt enable conditions */ + writel(0, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + /* Clear all pending interrupts */ + writel(0xffffffff, phba->HAregaddr); + readl(phba->HAregaddr); /* flush */ + + /* Reset some HBA SLI setup states */ + lpfc_stop_phba_timers(phba); + phba->pport->work_port_events = 0; + + return; +} + +/** + * lpfc_enable_intr: Enable device interrupt. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to enable device interrupt and associate driver's + * interrupt handler(s) to interrupt vector(s). Depends on the interrupt + * mode configured to the driver, the driver will try to fallback from the + * configured interrupt mode to an interrupt mode which is supported by the + * platform, kernel, and device in the order of: MSI-X -> MSI -> IRQ. + * + * Return codes + * 0 - sucessful + * other values - error + **/ +static uint32_t +lpfc_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) +{ + uint32_t intr_mode = LPFC_INTR_ERROR; + int retval; + + if (cfg_mode == 2) { + /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ + retval = lpfc_sli_config_port(phba, 3); + if (!retval) { + /* Now, try to enable MSI-X interrupt mode */ + retval = lpfc_enable_msix(phba); + if (!retval) { + /* Indicate initialization to MSI-X mode */ + phba->intr_type = MSIX; + intr_mode = 2; + } + } + } + + /* Fallback to MSI if MSI-X initialization failed */ + if (cfg_mode >= 1 && phba->intr_type == NONE) { + retval = lpfc_enable_msi(phba); + if (!retval) { + /* Indicate initialization to MSI mode */ + phba->intr_type = MSI; + intr_mode = 1; + } + } + + /* Fallback to INTx if both MSI-X/MSI initalization failed */ + if (phba->intr_type == NONE) { + retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, + IRQF_SHARED, LPFC_DRIVER_NAME, phba); + if (!retval) { + /* Indicate initialization to INTx mode */ + phba->intr_type = INTx; + intr_mode = 0; + } + } + return intr_mode; +} + +/** + * lpfc_disable_intr: Disable device interrupt. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to disable device interrupt and disassociate the + * driver's interrupt handler(s) from interrupt vector(s). Depending on the + * interrupt mode, the driver will release the interrupt vector(s) for the + * message signaled interrupt. + **/ +static void +lpfc_disable_intr(struct lpfc_hba *phba) +{ + /* Disable the currently initialized interrupt mode */ + if (phba->intr_type == MSIX) + lpfc_disable_msix(phba); + else if (phba->intr_type == MSI) + lpfc_disable_msi(phba); + else if (phba->intr_type == INTx) + free_irq(phba->pcidev->irq, phba); + + /* Reset interrupt management states */ + phba->intr_type = NONE; + phba->sli.slistat.sli_intr = 0; + + return; +} + +/** * lpfc_pci_probe_one: lpfc PCI probe func to register device to PCI subsystem. * @pdev: pointer to PCI device * @pid: pointer to PCI device identifier @@ -2356,6 +2602,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) int error = -ENODEV, retval; int i, hbq_count; uint16_t iotag; + uint32_t cfg_mode, intr_mode; int bars = pci_select_bars(pdev, IORESOURCE_MEM); struct lpfc_adapter_event_header adapter_event; @@ -2409,6 +2656,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) phba->eratt_poll.data = (unsigned long) phba; pci_set_master(pdev); + pci_save_state(pdev); pci_try_set_mwi(pdev); if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0) @@ -2557,7 +2805,6 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) lpfc_debugfs_initialize(vport); pci_set_drvdata(pdev, shost); - phba->intr_type = NONE; phba->MBslimaddr = phba->slim_memmap_p; phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; @@ -2565,63 +2812,58 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; - /* Configure and enable interrupt */ - if (phba->cfg_use_msi == 2) { - /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ - error = lpfc_sli_config_port(phba, 3); - if (error) - lpfc_printf_log(phba, KERN_INFO, LOG_INIT, - "0427 Firmware not capable of SLI 3 mode.\n"); - else { - lpfc_printf_log(phba, KERN_INFO, LOG_INIT, - "0426 Firmware capable of SLI 3 mode.\n"); - /* Now, try to enable MSI-X interrupt mode */ - error = lpfc_enable_msix(phba); - if (!error) { - phba->intr_type = MSIX; - lpfc_printf_log(phba, KERN_INFO, LOG_INIT, - "0430 enable MSI-X mode.\n"); - } - } - } - - /* Fallback to MSI if MSI-X initialization failed */ - if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) { - retval = pci_enable_msi(phba->pcidev); - if (!retval) { - phba->intr_type = MSI; - lpfc_printf_log(phba, KERN_INFO, LOG_INIT, - "0473 enable MSI mode.\n"); - } else - lpfc_printf_log(phba, KERN_INFO, LOG_INIT, - "0452 enable IRQ mode.\n"); - } - - /* MSI-X is the only case the doesn't need to call request_irq */ - if (phba->intr_type != MSIX) { - retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, - IRQF_SHARED, LPFC_DRIVER_NAME, phba); - if (retval) { - lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 Enable " - "interrupt handler failed\n"); - error = retval; - goto out_disable_msi; - } else if (phba->intr_type != MSI) - phba->intr_type = INTx; - } - + /* Configure sysfs attributes */ if (lpfc_alloc_sysfs_attr(vport)) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "1476 Failed to allocate sysfs attr\n"); error = -ENOMEM; - goto out_free_irq; + goto out_destroy_port; } - if (lpfc_sli_hba_setup(phba)) { - lpfc_printf_log(phba, KERN_ERR, LOG_INIT, - "1477 Failed to set up hba\n"); - error = -ENODEV; - goto out_remove_device; + cfg_mode = phba->cfg_use_msi; + while (true) { + /* Configure and enable interrupt */ + intr_mode = lpfc_enable_intr(phba, cfg_mode); + if (intr_mode == LPFC_INTR_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0426 Failed to enable interrupt.\n"); + goto out_free_sysfs_attr; + } + /* HBA SLI setup */ + if (lpfc_sli_hba_setup(phba)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1477 Failed to set up hba\n"); + error = -ENODEV; + goto out_remove_device; + } + + /* Wait 50ms for the interrupts of previous mailbox commands */ + msleep(50); + /* Check active interrupts received */ + if (phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { + /* Log the current active interrupt mode */ + phba->intr_mode = intr_mode; + lpfc_log_intr_mode(phba, intr_mode); + break; + } else { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0451 Configure interrupt mode (%d) " + "failed active interrupt test.\n", + intr_mode); + if (intr_mode == 0) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0479 Failed to enable " + "interrupt.\n"); + error = -ENODEV; + goto out_remove_device; + } + /* Stop HBA SLI setups */ + lpfc_stop_port(phba); + /* Disable the current interrupt mode */ + lpfc_disable_intr(phba); + /* Try next level of interrupt mode */ + cfg_mode = --intr_mode; + } } /* @@ -2629,6 +2871,75 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) * the value of can_queue. */ shost->can_queue = phba->cfg_hba_queue_depth - 10; + if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) { + + if (lpfc_prot_mask && lpfc_prot_guard) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "1478 Registering BlockGuard with the " + "SCSI layer\n"); + + scsi_host_set_prot(shost, lpfc_prot_mask); + scsi_host_set_guard(shost, lpfc_prot_guard); + } + } + + if (!_dump_buf_data) { + int pagecnt = 10; + while (pagecnt) { + spin_lock_init(&_dump_buf_lock); + _dump_buf_data = + (char *) __get_free_pages(GFP_KERNEL, pagecnt); + if (_dump_buf_data) { + printk(KERN_ERR "BLKGRD allocated %d pages for " + "_dump_buf_data at 0x%p\n", + (1 << pagecnt), _dump_buf_data); + _dump_buf_data_order = pagecnt; + memset(_dump_buf_data, 0, ((1 << PAGE_SHIFT) + << pagecnt)); + break; + } else { + --pagecnt; + } + + } + + if (!_dump_buf_data_order) + printk(KERN_ERR "BLKGRD ERROR unable to allocate " + "memory for hexdump\n"); + + } else { + printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p" + "\n", _dump_buf_data); + } + + + if (!_dump_buf_dif) { + int pagecnt = 10; + while (pagecnt) { + _dump_buf_dif = + (char *) __get_free_pages(GFP_KERNEL, pagecnt); + if (_dump_buf_dif) { + printk(KERN_ERR "BLKGRD allocated %d pages for " + "_dump_buf_dif at 0x%p\n", + (1 << pagecnt), _dump_buf_dif); + _dump_buf_dif_order = pagecnt; + memset(_dump_buf_dif, 0, ((1 << PAGE_SHIFT) + << pagecnt)); + break; + } else { + --pagecnt; + } + + } + + if (!_dump_buf_dif_order) + printk(KERN_ERR "BLKGRD ERROR unable to allocate " + "memory for hexdump\n"); + + } else { + printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n", + _dump_buf_dif); + } lpfc_host_attrib_init(shost); @@ -2646,29 +2957,22 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) fc_host_post_vendor_event(shost, fc_get_event_number(), sizeof(adapter_event), (char *) &adapter_event, - SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); - - scsi_scan_host(shost); + LPFC_NL_VENDOR_ID); return 0; out_remove_device: - lpfc_free_sysfs_attr(vport); spin_lock_irq(shost->host_lock); vport->load_flag |= FC_UNLOADING; spin_unlock_irq(shost->host_lock); -out_free_irq: lpfc_stop_phba_timers(phba); phba->pport->work_port_events = 0; - - if (phba->intr_type == MSIX) - lpfc_disable_msix(phba); - else - free_irq(phba->pcidev->irq, phba); - -out_disable_msi: - if (phba->intr_type == MSI) - pci_disable_msi(phba->pcidev); + lpfc_disable_intr(phba); + lpfc_sli_hba_down(phba); + lpfc_sli_brdrestart(phba); +out_free_sysfs_attr: + lpfc_free_sysfs_attr(vport); +out_destroy_port: destroy_port(vport); out_kthread_stop: kthread_stop(phba->worker_thread); @@ -2709,7 +3013,7 @@ out: * @pdev: pointer to PCI device * * This routine is to be registered to the kernel's PCI subsystem. When an - * Emulex HBA is removed from PCI bus. It perform all the necessary cleanup + * Emulex HBA is removed from PCI bus, it performs all the necessary cleanup * for the HBA device to be removed from the PCI subsystem properly. **/ static void __devexit @@ -2717,18 +3021,27 @@ lpfc_pci_remove_one(struct pci_dev *pdev) { struct Scsi_Host *shost = pci_get_drvdata(pdev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_vport **vports; struct lpfc_hba *phba = vport->phba; + int i; int bars = pci_select_bars(pdev, IORESOURCE_MEM); spin_lock_irq(&phba->hbalock); vport->load_flag |= FC_UNLOADING; spin_unlock_irq(&phba->hbalock); - kfree(vport->vname); lpfc_free_sysfs_attr(vport); kthread_stop(phba->worker_thread); + /* Release all the vports against this physical port */ + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) + for (i = 1; i <= phba->max_vpi && vports[i] != NULL; i++) + fc_vport_terminate(vports[i]->fc_vport); + lpfc_destroy_vport_work_array(phba, vports); + + /* Remove FC host and then SCSI host with the physical port */ fc_remove_host(shost); scsi_remove_host(shost); lpfc_cleanup(vport); @@ -2748,13 +3061,8 @@ lpfc_pci_remove_one(struct pci_dev *pdev) lpfc_debugfs_terminate(vport); - if (phba->intr_type == MSIX) - lpfc_disable_msix(phba); - else { - free_irq(phba->pcidev->irq, phba); - if (phba->intr_type == MSI) - pci_disable_msi(phba->pcidev); - } + /* Disable interrupt */ + lpfc_disable_intr(phba); pci_set_drvdata(pdev, NULL); scsi_host_put(shost); @@ -2786,6 +3094,115 @@ lpfc_pci_remove_one(struct pci_dev *pdev) } /** + * lpfc_pci_suspend_one: lpfc PCI func to suspend device for power management. + * @pdev: pointer to PCI device + * @msg: power management message + * + * This routine is to be registered to the kernel's PCI subsystem to support + * system Power Management (PM). When PM invokes this method, it quiesces the + * device by stopping the driver's worker thread for the device, turning off + * device's interrupt and DMA, and bring the device offline. Note that as the + * driver implements the minimum PM requirements to a power-aware driver's PM + * support for suspend/resume -- all the possible PM messages (SUSPEND, + * HIBERNATE, FREEZE) to the suspend() method call will be treated as SUSPEND + * and the driver will fully reinitialize its device during resume() method + * call, the driver will set device to PCI_D3hot state in PCI config space + * instead of setting it according to the @msg provided by the PM. + * + * Return code + * 0 - driver suspended the device + * Error otherwise + **/ +static int +lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0473 PCI device Power Management suspend.\n"); + + /* Bring down the device */ + lpfc_offline_prep(phba); + lpfc_offline(phba); + kthread_stop(phba->worker_thread); + + /* Disable interrupt from device */ + lpfc_disable_intr(phba); + + /* Save device state to PCI config space */ + pci_save_state(pdev); + pci_set_power_state(pdev, PCI_D3hot); + + return 0; +} + +/** + * lpfc_pci_resume_one: lpfc PCI func to resume device for power management. + * @pdev: pointer to PCI device + * + * This routine is to be registered to the kernel's PCI subsystem to support + * system Power Management (PM). When PM invokes this method, it restores + * the device's PCI config space state and fully reinitializes the device + * and brings it online. Note that as the driver implements the minimum PM + * requirements to a power-aware driver's PM for suspend/resume -- all + * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() + * method call will be treated as SUSPEND and the driver will fully + * reinitialize its device during resume() method call, the device will be + * set to PCI_D0 directly in PCI config space before restoring the state. + * + * Return code + * 0 - driver suspended the device + * Error otherwise + **/ +static int +lpfc_pci_resume_one(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + uint32_t intr_mode; + int error; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0452 PCI device Power Management resume.\n"); + + /* Restore device state from PCI config space */ + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + if (pdev->is_busmaster) + pci_set_master(pdev); + + /* Startup the kernel thread for this host adapter. */ + phba->worker_thread = kthread_run(lpfc_do_work, phba, + "lpfc_worker_%d", phba->brd_no); + if (IS_ERR(phba->worker_thread)) { + error = PTR_ERR(phba->worker_thread); + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0434 PM resume failed to start worker " + "thread: error=x%x.\n", error); + return error; + } + + /* Configure and enable interrupt */ + intr_mode = lpfc_enable_intr(phba, phba->intr_mode); + if (intr_mode == LPFC_INTR_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0430 PM resume Failed to enable interrupt\n"); + return -EIO; + } else + phba->intr_mode = intr_mode; + + /* Restart HBA and bring it online */ + lpfc_sli_brdrestart(phba); + lpfc_online(phba); + + /* Log the current active interrupt mode */ + lpfc_log_intr_mode(phba, phba->intr_mode); + + return 0; +} + +/** * lpfc_io_error_detected: Driver method for handling PCI I/O error detected. * @pdev: pointer to PCI device. * @state: the current PCI connection state. @@ -2828,13 +3245,8 @@ static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, pring = &psli->ring[psli->fcp_ring]; lpfc_sli_abort_iocb_ring(phba, pring); - if (phba->intr_type == MSIX) - lpfc_disable_msix(phba); - else { - free_irq(phba->pcidev->irq, phba); - if (phba->intr_type == MSI) - pci_disable_msi(phba->pcidev); - } + /* Disable interrupt */ + lpfc_disable_intr(phba); /* Request a slot reset. */ return PCI_ERS_RESULT_NEED_RESET; @@ -2862,7 +3274,7 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) struct Scsi_Host *shost = pci_get_drvdata(pdev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; struct lpfc_sli *psli = &phba->sli; - int error, retval; + uint32_t intr_mode; dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); if (pci_enable_device_mem(pdev)) { @@ -2871,61 +3283,31 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) return PCI_ERS_RESULT_DISCONNECT; } - pci_set_master(pdev); + pci_restore_state(pdev); + if (pdev->is_busmaster) + pci_set_master(pdev); spin_lock_irq(&phba->hbalock); psli->sli_flag &= ~LPFC_SLI2_ACTIVE; spin_unlock_irq(&phba->hbalock); - /* Enable configured interrupt method */ - phba->intr_type = NONE; - if (phba->cfg_use_msi == 2) { - /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ - error = lpfc_sli_config_port(phba, 3); - if (error) - lpfc_printf_log(phba, KERN_INFO, LOG_INIT, - "0478 Firmware not capable of SLI 3 mode.\n"); - else { - lpfc_printf_log(phba, KERN_INFO, LOG_INIT, - "0479 Firmware capable of SLI 3 mode.\n"); - /* Now, try to enable MSI-X interrupt mode */ - error = lpfc_enable_msix(phba); - if (!error) { - phba->intr_type = MSIX; - lpfc_printf_log(phba, KERN_INFO, LOG_INIT, - "0480 enable MSI-X mode.\n"); - } - } - } - - /* Fallback to MSI if MSI-X initialization failed */ - if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) { - retval = pci_enable_msi(phba->pcidev); - if (!retval) { - phba->intr_type = MSI; - lpfc_printf_log(phba, KERN_INFO, LOG_INIT, - "0481 enable MSI mode.\n"); - } else - lpfc_printf_log(phba, KERN_INFO, LOG_INIT, - "0470 enable IRQ mode.\n"); - } - - /* MSI-X is the only case the doesn't need to call request_irq */ - if (phba->intr_type != MSIX) { - retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, - IRQF_SHARED, LPFC_DRIVER_NAME, phba); - if (retval) { - lpfc_printf_log(phba, KERN_ERR, LOG_INIT, - "0471 Enable interrupt handler " - "failed\n"); - } else if (phba->intr_type != MSI) - phba->intr_type = INTx; - } + /* Configure and enable interrupt */ + intr_mode = lpfc_enable_intr(phba, phba->intr_mode); + if (intr_mode == LPFC_INTR_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0427 Cannot re-enable interrupt after " + "slot reset.\n"); + return PCI_ERS_RESULT_DISCONNECT; + } else + phba->intr_mode = intr_mode; /* Take device offline; this will perform cleanup */ lpfc_offline(phba); lpfc_sli_brdrestart(phba); + /* Log the current active interrupt mode */ + lpfc_log_intr_mode(phba, phba->intr_mode); + return PCI_ERS_RESULT_RECOVERED; } @@ -3037,6 +3419,8 @@ static struct pci_driver lpfc_driver = { .id_table = lpfc_id_table, .probe = lpfc_pci_probe_one, .remove = __devexit_p(lpfc_pci_remove_one), + .suspend = lpfc_pci_suspend_one, + .resume = lpfc_pci_resume_one, .err_handler = &lpfc_err_handler, }; @@ -3100,6 +3484,19 @@ lpfc_exit(void) fc_release_transport(lpfc_transport_template); if (lpfc_enable_npiv) fc_release_transport(lpfc_vport_transport_template); + if (_dump_buf_data) { + printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data " + "at 0x%p\n", + (1L << _dump_buf_data_order), _dump_buf_data); + free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); + } + + if (_dump_buf_dif) { + printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif " + "at 0x%p\n", + (1L << _dump_buf_dif_order), _dump_buf_dif); + free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); + } } module_init(lpfc_init); diff --git a/drivers/scsi/lpfc/lpfc_logmsg.h b/drivers/scsi/lpfc/lpfc_logmsg.h index 39fd2b8..a85b7c1 100644 --- a/drivers/scsi/lpfc/lpfc_logmsg.h +++ b/drivers/scsi/lpfc/lpfc_logmsg.h @@ -27,6 +27,7 @@ #define LOG_FCP 0x40 /* FCP traffic history */ #define LOG_NODE 0x80 /* Node table events */ #define LOG_TEMP 0x100 /* Temperature sensor events */ +#define LOG_BG 0x200 /* BlockBuard events */ #define LOG_MISC 0x400 /* Miscellaneous events */ #define LOG_SLI 0x800 /* SLI events */ #define LOG_FCP_ERROR 0x1000 /* log errors, not underruns */ diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c index 7465fe7..34eeb08 100644 --- a/drivers/scsi/lpfc/lpfc_mbox.c +++ b/drivers/scsi/lpfc/lpfc_mbox.c @@ -77,6 +77,38 @@ lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset) } /** + * lpfc_dump_mem: Prepare a mailbox command for retrieving wakeup params. + * @phba: pointer to lpfc hba data structure. + * @pmb: pointer to the driver internal queue element for mailbox command. + * This function create a dump memory mailbox command to dump wake up + * parameters. + */ +void +lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) +{ + MAILBOX_t *mb; + void *ctx; + + mb = &pmb->mb; + /* Save context so that we can restore after memset */ + ctx = pmb->context2; + + /* Setup to dump VPD region */ + memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); + mb->mbxCommand = MBX_DUMP_MEMORY; + mb->mbxOwner = OWN_HOST; + mb->un.varDmp.cv = 1; + mb->un.varDmp.type = DMP_NV_PARAMS; + mb->un.varDmp.entry_index = 0; + mb->un.varDmp.region_id = WAKE_UP_PARMS_REGION_ID; + mb->un.varDmp.word_cnt = WAKE_UP_PARMS_WORD_SIZE; + mb->un.varDmp.co = 0; + mb->un.varDmp.resp_offset = 0; + pmb->context2 = ctx; + return; +} + +/** * lpfc_read_nv: Prepare a mailbox command for reading HBA's NVRAM param. * @phba: pointer to lpfc hba data structure. * @pmb: pointer to the driver internal queue element for mailbox command. @@ -1061,9 +1093,14 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr); mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr); + /* Always Host Group Pointer is in SLIM */ + mb->un.varCfgPort.hps = 1; + /* If HBA supports SLI=3 ask for it */ if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) { + if (phba->cfg_enable_bg) + mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */ mb->un.varCfgPort.cerbm = 1; /* Request HBQs */ mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */ mb->un.varCfgPort.cinb = 1; /* Interrupt Notification Block */ @@ -1163,16 +1200,11 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) sizeof(*phba->host_gp)); } - /* Setup Port Group ring pointer */ - if (phba->sli3_options & LPFC_SLI3_INB_ENABLED) { - pgp_offset = offsetof(struct lpfc_sli2_slim, - mbx.us.s3_inb_pgp.port); - phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get; - } else if (phba->sli_rev == 3) { + /* Setup Port Group offset */ + if (phba->sli_rev == 3) pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s3_pgp.port); - phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get; - } else + else pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port); pdma_addr = phba->slim2p.phys + pgp_offset; phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr); @@ -1285,10 +1317,12 @@ lpfc_mbox_get(struct lpfc_hba * phba) void lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) { + unsigned long iflag; + /* This function expects to be called from interrupt context */ - spin_lock(&phba->hbalock); + spin_lock_irqsave(&phba->hbalock, iflag); list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl); - spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); return; } diff --git a/drivers/scsi/lpfc/lpfc_nl.h b/drivers/scsi/lpfc/lpfc_nl.h index 1accb5a..27d1a88 100644 --- a/drivers/scsi/lpfc/lpfc_nl.h +++ b/drivers/scsi/lpfc/lpfc_nl.h @@ -22,18 +22,20 @@ #define FC_REG_LINK_EVENT 0x0001 /* link up / down events */ #define FC_REG_RSCN_EVENT 0x0002 /* RSCN events */ #define FC_REG_CT_EVENT 0x0004 /* CT request events */ -#define FC_REG_DUMP_EVENT 0x0008 /* Dump events */ -#define FC_REG_TEMPERATURE_EVENT 0x0010 /* temperature events */ -#define FC_REG_ELS_EVENT 0x0020 /* lpfc els events */ -#define FC_REG_FABRIC_EVENT 0x0040 /* lpfc fabric events */ -#define FC_REG_SCSI_EVENT 0x0080 /* lpfc scsi events */ -#define FC_REG_BOARD_EVENT 0x0100 /* lpfc board events */ -#define FC_REG_ADAPTER_EVENT 0x0200 /* lpfc adapter events */ +#define FC_REG_DUMP_EVENT 0x0010 /* Dump events */ +#define FC_REG_TEMPERATURE_EVENT 0x0020 /* temperature events */ +#define FC_REG_VPORTRSCN_EVENT 0x0040 /* Vport RSCN events */ +#define FC_REG_ELS_EVENT 0x0080 /* lpfc els events */ +#define FC_REG_FABRIC_EVENT 0x0100 /* lpfc fabric events */ +#define FC_REG_SCSI_EVENT 0x0200 /* lpfc scsi events */ +#define FC_REG_BOARD_EVENT 0x0400 /* lpfc board events */ +#define FC_REG_ADAPTER_EVENT 0x0800 /* lpfc adapter events */ #define FC_REG_EVENT_MASK (FC_REG_LINK_EVENT | \ FC_REG_RSCN_EVENT | \ FC_REG_CT_EVENT | \ FC_REG_DUMP_EVENT | \ FC_REG_TEMPERATURE_EVENT | \ + FC_REG_VPORTRSCN_EVENT | \ FC_REG_ELS_EVENT | \ FC_REG_FABRIC_EVENT | \ FC_REG_SCSI_EVENT | \ @@ -52,6 +54,13 @@ * The payload sent via the fc transport is one-way driver->application. */ +/* RSCN event header */ +struct lpfc_rscn_event_header { + uint32_t event_type; + uint32_t payload_length; /* RSCN data length in bytes */ + uint32_t rscn_payload[]; +}; + /* els event header */ struct lpfc_els_event_header { uint32_t event_type; @@ -65,6 +74,7 @@ struct lpfc_els_event_header { #define LPFC_EVENT_PRLO_RCV 0x02 #define LPFC_EVENT_ADISC_RCV 0x04 #define LPFC_EVENT_LSRJT_RCV 0x08 +#define LPFC_EVENT_LOGO_RCV 0x10 /* special els lsrjt event */ struct lpfc_lsrjt_event { @@ -74,6 +84,11 @@ struct lpfc_lsrjt_event { uint32_t explanation; }; +/* special els logo event */ +struct lpfc_logo_event { + struct lpfc_els_event_header header; + uint8_t logo_wwpn[8]; +}; /* fabric event header */ struct lpfc_fabric_event_header { @@ -125,6 +140,7 @@ struct lpfc_scsi_varqueuedepth_event { /* special case scsi check condition event */ struct lpfc_scsi_check_condition_event { struct lpfc_scsi_event_header scsi_event; + uint8_t opcode; uint8_t sense_key; uint8_t asc; uint8_t ascq; diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c index 0c25d97..8f548ad 100644 --- a/drivers/scsi/lpfc/lpfc_nportdisc.c +++ b/drivers/scsi/lpfc/lpfc_nportdisc.c @@ -1929,10 +1929,10 @@ lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, if (vport->fc_flag & FC_RSCN_DEFERRED) return ndlp->nlp_state; + lpfc_cancel_retry_delay_tmo(vport, ndlp); spin_lock_irq(shost->host_lock); ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC); spin_unlock_irq(shost->host_lock); - lpfc_cancel_retry_delay_tmo(vport, ndlp); return ndlp->nlp_state; } diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index bd18674..b103b6e 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -18,13 +18,14 @@ * more details, a copy of which can be found in the file COPYING * * included with this package. * *******************************************************************/ - #include <linux/pci.h> #include <linux/interrupt.h> #include <linux/delay.h> +#include <asm/unaligned.h> #include <scsi/scsi.h> #include <scsi/scsi_device.h> +#include <scsi/scsi_eh.h> #include <scsi/scsi_host.h> #include <scsi/scsi_tcq.h> #include <scsi/scsi_transport_fc.h> @@ -43,6 +44,73 @@ #define LPFC_RESET_WAIT 2 #define LPFC_ABORT_WAIT 2 +int _dump_buf_done; + +static char *dif_op_str[] = { + "SCSI_PROT_NORMAL", + "SCSI_PROT_READ_INSERT", + "SCSI_PROT_WRITE_STRIP", + "SCSI_PROT_READ_STRIP", + "SCSI_PROT_WRITE_INSERT", + "SCSI_PROT_READ_PASS", + "SCSI_PROT_WRITE_PASS", + "SCSI_PROT_READ_CONVERT", + "SCSI_PROT_WRITE_CONVERT" +}; + +static void +lpfc_debug_save_data(struct scsi_cmnd *cmnd) +{ + void *src, *dst; + struct scatterlist *sgde = scsi_sglist(cmnd); + + if (!_dump_buf_data) { + printk(KERN_ERR "BLKGRD ERROR %s _dump_buf_data is NULL\n", + __func__); + return; + } + + + if (!sgde) { + printk(KERN_ERR "BLKGRD ERROR: data scatterlist is null\n"); + return; + } + + dst = (void *) _dump_buf_data; + while (sgde) { + src = sg_virt(sgde); + memcpy(dst, src, sgde->length); + dst += sgde->length; + sgde = sg_next(sgde); + } +} + +static void +lpfc_debug_save_dif(struct scsi_cmnd *cmnd) +{ + void *src, *dst; + struct scatterlist *sgde = scsi_prot_sglist(cmnd); + + if (!_dump_buf_dif) { + printk(KERN_ERR "BLKGRD ERROR %s _dump_buf_data is NULL\n", + __func__); + return; + } + + if (!sgde) { + printk(KERN_ERR "BLKGRD ERROR: prot scatterlist is null\n"); + return; + } + + dst = _dump_buf_dif; + while (sgde) { + src = sg_virt(sgde); + memcpy(dst, src, sgde->length); + dst += sgde->length; + sgde = sg_next(sgde); + } +} + /** * lpfc_update_stats: Update statistical data for the command completion. * @phba: Pointer to HBA object. @@ -66,6 +134,8 @@ lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) if (cmd->result) return; + latency = jiffies_to_msecs((long)jiffies - (long)lpfc_cmd->start_time); + spin_lock_irqsave(shost->host_lock, flags); if (!vport->stat_data_enabled || vport->stat_data_blocked || @@ -74,13 +144,15 @@ lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) spin_unlock_irqrestore(shost->host_lock, flags); return; } - latency = jiffies_to_msecs(jiffies - lpfc_cmd->start_time); if (phba->bucket_type == LPFC_LINEAR_BUCKET) { i = (latency + phba->bucket_step - 1 - phba->bucket_base)/ phba->bucket_step; - if (i >= LPFC_MAX_BUCKET_COUNT) - i = LPFC_MAX_BUCKET_COUNT; + /* check array subscript bounds */ + if (i < 0) + i = 0; + else if (i >= LPFC_MAX_BUCKET_COUNT) + i = LPFC_MAX_BUCKET_COUNT - 1; } else { for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++) if (latency <= (phba->bucket_base + @@ -92,7 +164,6 @@ lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) spin_unlock_irqrestore(shost->host_lock, flags); } - /** * lpfc_send_sdev_queuedepth_change_event: Posts a queuedepth change * event. @@ -148,12 +219,19 @@ lpfc_send_sdev_queuedepth_change_event(struct lpfc_hba *phba, return; } -/* - * This function is called with no lock held when there is a resource - * error in driver or in firmware. - */ +/** + * lpfc_rampdown_queue_depth: Post RAMP_DOWN_QUEUE event to worker thread. + * @phba: The Hba for which this call is being executed. + * + * This routine is called when there is resource error in driver or firmware. + * This routine posts WORKER_RAMP_DOWN_QUEUE event for @phba. This routine + * posts at most 1 event each second. This routine wakes up worker thread of + * @phba to process WORKER_RAM_DOWN_EVENT event. + * + * This routine should be called with no lock held. + **/ void -lpfc_adjust_queue_depth(struct lpfc_hba *phba) +lpfc_rampdown_queue_depth(struct lpfc_hba *phba) { unsigned long flags; uint32_t evt_posted; @@ -182,10 +260,17 @@ lpfc_adjust_queue_depth(struct lpfc_hba *phba) return; } -/* - * This function is called with no lock held when there is a successful - * SCSI command completion. - */ +/** + * lpfc_rampup_queue_depth: Post RAMP_UP_QUEUE event for worker thread. + * @phba: The Hba for which this call is being executed. + * + * This routine post WORKER_RAMP_UP_QUEUE event for @phba vport. This routine + * post at most 1 event every 5 minute after last_ramp_up_time or + * last_rsrc_error_time. This routine wakes up worker thread of @phba + * to process WORKER_RAM_DOWN_EVENT event. + * + * This routine should be called with no lock held. + **/ static inline void lpfc_rampup_queue_depth(struct lpfc_vport *vport, struct scsi_device *sdev) @@ -217,6 +302,14 @@ lpfc_rampup_queue_depth(struct lpfc_vport *vport, return; } +/** + * lpfc_ramp_down_queue_handler: WORKER_RAMP_DOWN_QUEUE event handler. + * @phba: The Hba for which this call is being executed. + * + * This routine is called to process WORKER_RAMP_DOWN_QUEUE event for worker + * thread.This routine reduces queue depth for all scsi device on each vport + * associated with @phba. + **/ void lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) { @@ -267,6 +360,15 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) atomic_set(&phba->num_cmd_success, 0); } +/** + * lpfc_ramp_up_queue_handler: WORKER_RAMP_UP_QUEUE event handler. + * @phba: The Hba for which this call is being executed. + * + * This routine is called to process WORKER_RAMP_UP_QUEUE event for worker + * thread.This routine increases queue depth for all scsi device on each vport + * associated with @phba by 1. This routine also sets @phba num_rsrc_err and + * num_cmd_success to zero. + **/ void lpfc_ramp_up_queue_handler(struct lpfc_hba *phba) { @@ -336,14 +438,21 @@ lpfc_scsi_dev_block(struct lpfc_hba *phba) lpfc_destroy_vport_work_array(phba, vports); } -/* +/** + * lpfc_new_scsi_buf: Scsi buffer allocator. + * @vport: The virtual port for which this call being executed. + * * This routine allocates a scsi buffer, which contains all the necessary * information needed to initiate a SCSI I/O. The non-DMAable buffer region * contains information to build the IOCB. The DMAable region contains - * memory for the FCP CMND, FCP RSP, and the inital BPL. In addition to - * allocating memeory, the FCP CMND and FCP RSP BDEs are setup in the BPL + * memory for the FCP CMND, FCP RSP, and the initial BPL. In addition to + * allocating memory, the FCP CMND and FCP RSP BDEs are setup in the BPL * and the BPL BDE is setup in the IOCB. - */ + * + * Return codes: + * NULL - Error + * Pointer to lpfc_scsi_buf data structure - Success + **/ static struct lpfc_scsi_buf * lpfc_new_scsi_buf(struct lpfc_vport *vport) { @@ -407,14 +516,14 @@ lpfc_new_scsi_buf(struct lpfc_vport *vport) bpl[0].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_cmd)); bpl[0].tus.f.bdeSize = sizeof(struct fcp_cmnd); bpl[0].tus.f.bdeFlags = BUFF_TYPE_BDE_64; - bpl[0].tus.w = le32_to_cpu(bpl->tus.w); + bpl[0].tus.w = le32_to_cpu(bpl[0].tus.w); /* Setup the physical region for the FCP RSP */ bpl[1].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_rsp)); bpl[1].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_rsp)); bpl[1].tus.f.bdeSize = sizeof(struct fcp_rsp); bpl[1].tus.f.bdeFlags = BUFF_TYPE_BDE_64; - bpl[1].tus.w = le32_to_cpu(bpl->tus.w); + bpl[1].tus.w = le32_to_cpu(bpl[1].tus.w); /* * Since the IOCB for the FCP I/O is built into this lpfc_scsi_buf, @@ -422,7 +531,8 @@ lpfc_new_scsi_buf(struct lpfc_vport *vport) */ iocb = &psb->cur_iocbq.iocb; iocb->un.fcpi64.bdl.ulpIoTag32 = 0; - if (phba->sli_rev == 3) { + if ((phba->sli_rev == 3) && + !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) { /* fill in immediate fcp command BDE */ iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_IMMED; iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); @@ -452,6 +562,17 @@ lpfc_new_scsi_buf(struct lpfc_vport *vport) return psb; } +/** + * lpfc_get_scsi_buf: Get a scsi buffer from lpfc_scsi_buf_list list of Hba. + * @phba: The Hba for which this call is being executed. + * + * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list + * and returns to caller. + * + * Return codes: + * NULL - Error + * Pointer to lpfc_scsi_buf - Success + **/ static struct lpfc_scsi_buf* lpfc_get_scsi_buf(struct lpfc_hba * phba) { @@ -464,11 +585,20 @@ lpfc_get_scsi_buf(struct lpfc_hba * phba) if (lpfc_cmd) { lpfc_cmd->seg_cnt = 0; lpfc_cmd->nonsg_phys = 0; + lpfc_cmd->prot_seg_cnt = 0; } spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); return lpfc_cmd; } +/** + * lpfc_release_scsi_buf: Return a scsi buffer back to hba lpfc_scsi_buf_list list. + * @phba: The Hba for which this call is being executed. + * @psb: The scsi buffer which is being released. + * + * This routine releases @psb scsi buffer by adding it to tail of @phba + * lpfc_scsi_buf_list list. + **/ static void lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) { @@ -480,6 +610,20 @@ lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); } +/** + * lpfc_scsi_prep_dma_buf: Routine to do DMA mapping for scsi buffer. + * @phba: The Hba for which this call is being executed. + * @lpfc_cmd: The scsi buffer which is going to be mapped. + * + * This routine does the pci dma mapping for scatter-gather list of scsi cmnd + * field of @lpfc_cmd. This routine scans through sg elements and format the + * bdea. This routine also initializes all IOCB fields which are dependent on + * scsi command request buffer. + * + * Return codes: + * 1 - Error + * 0 - Success + **/ static int lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) { @@ -516,7 +660,7 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) lpfc_cmd->seg_cnt = nseg; if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { printk(KERN_ERR "%s: Too many sg segments from " - "dma_map_sg. Config %d, seg_cnt %d", + "dma_map_sg. Config %d, seg_cnt %d\n", __func__, phba->cfg_sg_seg_cnt, lpfc_cmd->seg_cnt); scsi_dma_unmap(scsi_cmnd); @@ -535,6 +679,7 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { physaddr = sg_dma_address(sgel); if (phba->sli_rev == 3 && + !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && nseg <= LPFC_EXT_DATA_BDE_COUNT) { data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; data_bde->tus.f.bdeSize = sg_dma_len(sgel); @@ -560,7 +705,8 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) * explicitly reinitialized and for SLI-3 the extended bde count is * explicitly reinitialized since all iocb memory resources are reused. */ - if (phba->sli_rev == 3) { + if (phba->sli_rev == 3 && + !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) { if (num_bde > LPFC_EXT_DATA_BDE_COUNT) { /* * The extended IOCB format can only fit 3 BDE or a BPL. @@ -587,7 +733,683 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) ((num_bde + 2) * sizeof(struct ulp_bde64)); } fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); + + /* + * Due to difference in data length between DIF/non-DIF paths, + * we need to set word 4 of IOCB here + */ + iocb_cmd->un.fcpi.fcpi_parm = le32_to_cpu(scsi_bufflen(scsi_cmnd)); + return 0; +} + +/* + * Given a scsi cmnd, determine the BlockGuard profile to be used + * with the cmd + */ +static int +lpfc_sc_to_sli_prof(struct scsi_cmnd *sc) +{ + uint8_t guard_type = scsi_host_get_guard(sc->device->host); + uint8_t ret_prof = LPFC_PROF_INVALID; + + if (guard_type == SHOST_DIX_GUARD_IP) { + switch (scsi_get_prot_op(sc)) { + case SCSI_PROT_READ_INSERT: + case SCSI_PROT_WRITE_STRIP: + ret_prof = LPFC_PROF_AST2; + break; + + case SCSI_PROT_READ_STRIP: + case SCSI_PROT_WRITE_INSERT: + ret_prof = LPFC_PROF_A1; + break; + + case SCSI_PROT_READ_CONVERT: + case SCSI_PROT_WRITE_CONVERT: + ret_prof = LPFC_PROF_AST1; + break; + + case SCSI_PROT_READ_PASS: + case SCSI_PROT_WRITE_PASS: + case SCSI_PROT_NORMAL: + default: + printk(KERN_ERR "Bad op/guard:%d/%d combination\n", + scsi_get_prot_op(sc), guard_type); + break; + + } + } else if (guard_type == SHOST_DIX_GUARD_CRC) { + switch (scsi_get_prot_op(sc)) { + case SCSI_PROT_READ_STRIP: + case SCSI_PROT_WRITE_INSERT: + ret_prof = LPFC_PROF_A1; + break; + + case SCSI_PROT_READ_PASS: + case SCSI_PROT_WRITE_PASS: + ret_prof = LPFC_PROF_C1; + break; + + case SCSI_PROT_READ_CONVERT: + case SCSI_PROT_WRITE_CONVERT: + case SCSI_PROT_READ_INSERT: + case SCSI_PROT_WRITE_STRIP: + case SCSI_PROT_NORMAL: + default: + printk(KERN_ERR "Bad op/guard:%d/%d combination\n", + scsi_get_prot_op(sc), guard_type); + break; + } + } else { + /* unsupported format */ + BUG(); + } + + return ret_prof; +} + +struct scsi_dif_tuple { + __be16 guard_tag; /* Checksum */ + __be16 app_tag; /* Opaque storage */ + __be32 ref_tag; /* Target LBA or indirect LBA */ +}; + +static inline unsigned +lpfc_cmd_blksize(struct scsi_cmnd *sc) +{ + return sc->device->sector_size; +} + +/** + * lpfc_get_cmd_dif_parms - Extract DIF parameters from SCSI command + * @sc: in: SCSI command + * @apptagmask out: app tag mask + * @apptagval out: app tag value + * @reftag out: ref tag (reference tag) + * + * Description: + * Extract DIF paramters from the command if possible. Otherwise, + * use default paratmers. + * + **/ +static inline void +lpfc_get_cmd_dif_parms(struct scsi_cmnd *sc, uint16_t *apptagmask, + uint16_t *apptagval, uint32_t *reftag) +{ + struct scsi_dif_tuple *spt; + unsigned char op = scsi_get_prot_op(sc); + unsigned int protcnt = scsi_prot_sg_count(sc); + static int cnt; + + if (protcnt && (op == SCSI_PROT_WRITE_STRIP || + op == SCSI_PROT_WRITE_PASS || + op == SCSI_PROT_WRITE_CONVERT)) { + + cnt++; + spt = page_address(sg_page(scsi_prot_sglist(sc))) + + scsi_prot_sglist(sc)[0].offset; + *apptagmask = 0; + *apptagval = 0; + *reftag = cpu_to_be32(spt->ref_tag); + + } else { + /* SBC defines ref tag to be lower 32bits of LBA */ + *reftag = (uint32_t) (0xffffffff & scsi_get_lba(sc)); + *apptagmask = 0; + *apptagval = 0; + } +} + +/* + * This function sets up buffer list for protection groups of + * type LPFC_PG_TYPE_NO_DIF + * + * This is usually used when the HBA is instructed to generate + * DIFs and insert them into data stream (or strip DIF from + * incoming data stream) + * + * The buffer list consists of just one protection group described + * below: + * +-------------------------+ + * start of prot group --> | PDE_1 | + * +-------------------------+ + * | Data BDE | + * +-------------------------+ + * |more Data BDE's ... (opt)| + * +-------------------------+ + * + * @sc: pointer to scsi command we're working on + * @bpl: pointer to buffer list for protection groups + * @datacnt: number of segments of data that have been dma mapped + * + * Note: Data s/g buffers have been dma mapped + */ +static int +lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc, + struct ulp_bde64 *bpl, int datasegcnt) +{ + struct scatterlist *sgde = NULL; /* s/g data entry */ + struct lpfc_pde *pde1 = NULL; + dma_addr_t physaddr; + int i = 0, num_bde = 0; + int datadir = sc->sc_data_direction; + int prof = LPFC_PROF_INVALID; + unsigned blksize; + uint32_t reftag; + uint16_t apptagmask, apptagval; + + pde1 = (struct lpfc_pde *) bpl; + prof = lpfc_sc_to_sli_prof(sc); + + if (prof == LPFC_PROF_INVALID) + goto out; + + /* extract some info from the scsi command for PDE1*/ + blksize = lpfc_cmd_blksize(sc); + lpfc_get_cmd_dif_parms(sc, &apptagmask, &apptagval, &reftag); + + /* setup PDE1 with what we have */ + lpfc_pde_set_bg_parms(pde1, LPFC_PDE1_DESCRIPTOR, prof, blksize, + BG_EC_STOP_ERR); + lpfc_pde_set_dif_parms(pde1, apptagmask, apptagval, reftag); + + num_bde++; + bpl++; + + /* assumption: caller has already run dma_map_sg on command data */ + scsi_for_each_sg(sc, sgde, datasegcnt, i) { + physaddr = sg_dma_address(sgde); + bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr)); + bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); + bpl->tus.f.bdeSize = sg_dma_len(sgde); + if (datadir == DMA_TO_DEVICE) + bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; + else + bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; + bpl->tus.w = le32_to_cpu(bpl->tus.w); + bpl++; + num_bde++; + } + +out: + return num_bde; +} + +/* + * This function sets up buffer list for protection groups of + * type LPFC_PG_TYPE_DIF_BUF + * + * This is usually used when DIFs are in their own buffers, + * separate from the data. The HBA can then by instructed + * to place the DIFs in the outgoing stream. For read operations, + * The HBA could extract the DIFs and place it in DIF buffers. + * + * The buffer list for this type consists of one or more of the + * protection groups described below: + * +-------------------------+ + * start of first prot group --> | PDE_1 | + * +-------------------------+ + * | PDE_3 (Prot BDE) | + * +-------------------------+ + * | Data BDE | + * +-------------------------+ + * |more Data BDE's ... (opt)| + * +-------------------------+ + * start of new prot group --> | PDE_1 | + * +-------------------------+ + * | ... | + * +-------------------------+ + * + * @sc: pointer to scsi command we're working on + * @bpl: pointer to buffer list for protection groups + * @datacnt: number of segments of data that have been dma mapped + * @protcnt: number of segment of protection data that have been dma mapped + * + * Note: It is assumed that both data and protection s/g buffers have been + * mapped for DMA + */ +static int +lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, + struct ulp_bde64 *bpl, int datacnt, int protcnt) +{ + struct scatterlist *sgde = NULL; /* s/g data entry */ + struct scatterlist *sgpe = NULL; /* s/g prot entry */ + struct lpfc_pde *pde1 = NULL; + struct ulp_bde64 *prot_bde = NULL; + dma_addr_t dataphysaddr, protphysaddr; + unsigned short curr_data = 0, curr_prot = 0; + unsigned int split_offset, protgroup_len; + unsigned int protgrp_blks, protgrp_bytes; + unsigned int remainder, subtotal; + int prof = LPFC_PROF_INVALID; + int datadir = sc->sc_data_direction; + unsigned char pgdone = 0, alldone = 0; + unsigned blksize; + uint32_t reftag; + uint16_t apptagmask, apptagval; + int num_bde = 0; + + sgpe = scsi_prot_sglist(sc); + sgde = scsi_sglist(sc); + + if (!sgpe || !sgde) { + lpfc_printf_log(phba, KERN_ERR, LOG_FCP, + "9020 Invalid s/g entry: data=0x%p prot=0x%p\n", + sgpe, sgde); + return 0; + } + + prof = lpfc_sc_to_sli_prof(sc); + if (prof == LPFC_PROF_INVALID) + goto out; + + /* extract some info from the scsi command for PDE1*/ + blksize = lpfc_cmd_blksize(sc); + lpfc_get_cmd_dif_parms(sc, &apptagmask, &apptagval, &reftag); + + split_offset = 0; + do { + /* setup the first PDE_1 */ + pde1 = (struct lpfc_pde *) bpl; + + lpfc_pde_set_bg_parms(pde1, LPFC_PDE1_DESCRIPTOR, prof, blksize, + BG_EC_STOP_ERR); + lpfc_pde_set_dif_parms(pde1, apptagmask, apptagval, reftag); + + num_bde++; + bpl++; + + /* setup the first BDE that points to protection buffer */ + prot_bde = (struct ulp_bde64 *) bpl; + protphysaddr = sg_dma_address(sgpe); + prot_bde->addrLow = le32_to_cpu(putPaddrLow(protphysaddr)); + prot_bde->addrHigh = le32_to_cpu(putPaddrHigh(protphysaddr)); + protgroup_len = sg_dma_len(sgpe); + + + /* must be integer multiple of the DIF block length */ + BUG_ON(protgroup_len % 8); + + protgrp_blks = protgroup_len / 8; + protgrp_bytes = protgrp_blks * blksize; + + prot_bde->tus.f.bdeSize = protgroup_len; + if (datadir == DMA_TO_DEVICE) + prot_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; + else + prot_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; + prot_bde->tus.w = le32_to_cpu(bpl->tus.w); + + curr_prot++; + num_bde++; + + /* setup BDE's for data blocks associated with DIF data */ + pgdone = 0; + subtotal = 0; /* total bytes processed for current prot grp */ + while (!pgdone) { + if (!sgde) { + printk(KERN_ERR "%s Invalid data segment\n", + __func__); + return 0; + } + bpl++; + dataphysaddr = sg_dma_address(sgde) + split_offset; + bpl->addrLow = le32_to_cpu(putPaddrLow(dataphysaddr)); + bpl->addrHigh = le32_to_cpu(putPaddrHigh(dataphysaddr)); + + remainder = sg_dma_len(sgde) - split_offset; + + if ((subtotal + remainder) <= protgrp_bytes) { + /* we can use this whole buffer */ + bpl->tus.f.bdeSize = remainder; + split_offset = 0; + + if ((subtotal + remainder) == protgrp_bytes) + pgdone = 1; + } else { + /* must split this buffer with next prot grp */ + bpl->tus.f.bdeSize = protgrp_bytes - subtotal; + split_offset += bpl->tus.f.bdeSize; + } + + subtotal += bpl->tus.f.bdeSize; + + if (datadir == DMA_TO_DEVICE) + bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; + else + bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; + bpl->tus.w = le32_to_cpu(bpl->tus.w); + + num_bde++; + curr_data++; + + if (split_offset) + break; + + /* Move to the next s/g segment if possible */ + sgde = sg_next(sgde); + } + + /* are we done ? */ + if (curr_prot == protcnt) { + alldone = 1; + } else if (curr_prot < protcnt) { + /* advance to next prot buffer */ + sgpe = sg_next(sgpe); + bpl++; + + /* update the reference tag */ + reftag += protgrp_blks; + } else { + /* if we're here, we have a bug */ + printk(KERN_ERR "BLKGRD: bug in %s\n", __func__); + } + + } while (!alldone); + +out: + + + return num_bde; +} +/* + * Given a SCSI command that supports DIF, determine composition of protection + * groups involved in setting up buffer lists + * + * Returns: + * for DIF (for both read and write) + * */ +static int +lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc) +{ + int ret = LPFC_PG_TYPE_INVALID; + unsigned char op = scsi_get_prot_op(sc); + + switch (op) { + case SCSI_PROT_READ_STRIP: + case SCSI_PROT_WRITE_INSERT: + ret = LPFC_PG_TYPE_NO_DIF; + break; + case SCSI_PROT_READ_INSERT: + case SCSI_PROT_WRITE_STRIP: + case SCSI_PROT_READ_PASS: + case SCSI_PROT_WRITE_PASS: + case SCSI_PROT_WRITE_CONVERT: + case SCSI_PROT_READ_CONVERT: + ret = LPFC_PG_TYPE_DIF_BUF; + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_FCP, + "9021 Unsupported protection op:%d\n", op); + break; + } + + return ret; +} + +/* + * This is the protection/DIF aware version of + * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the + * two functions eventually, but for now, it's here + */ +static int +lpfc_bg_scsi_prep_dma_buf(struct lpfc_hba *phba, + struct lpfc_scsi_buf *lpfc_cmd) +{ + struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; + struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; + struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; + IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; + uint32_t num_bde = 0; + int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; + int prot_group_type = 0; + int diflen, fcpdl; + unsigned blksize; + + /* + * Start the lpfc command prep by bumping the bpl beyond fcp_cmnd + * fcp_rsp regions to the first data bde entry + */ + bpl += 2; + if (scsi_sg_count(scsi_cmnd)) { + /* + * The driver stores the segment count returned from pci_map_sg + * because this a count of dma-mappings used to map the use_sg + * pages. They are not guaranteed to be the same for those + * architectures that implement an IOMMU. + */ + datasegcnt = dma_map_sg(&phba->pcidev->dev, + scsi_sglist(scsi_cmnd), + scsi_sg_count(scsi_cmnd), datadir); + if (unlikely(!datasegcnt)) + return 1; + + lpfc_cmd->seg_cnt = datasegcnt; + if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { + printk(KERN_ERR "%s: Too many sg segments from " + "dma_map_sg. Config %d, seg_cnt %d\n", + __func__, phba->cfg_sg_seg_cnt, + lpfc_cmd->seg_cnt); + scsi_dma_unmap(scsi_cmnd); + return 1; + } + + prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); + + switch (prot_group_type) { + case LPFC_PG_TYPE_NO_DIF: + num_bde = lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl, + datasegcnt); + /* we shoud have 2 or more entries in buffer list */ + if (num_bde < 2) + goto err; + break; + case LPFC_PG_TYPE_DIF_BUF:{ + /* + * This type indicates that protection buffers are + * passed to the driver, so that needs to be prepared + * for DMA + */ + protsegcnt = dma_map_sg(&phba->pcidev->dev, + scsi_prot_sglist(scsi_cmnd), + scsi_prot_sg_count(scsi_cmnd), datadir); + if (unlikely(!protsegcnt)) { + scsi_dma_unmap(scsi_cmnd); + return 1; + } + + lpfc_cmd->prot_seg_cnt = protsegcnt; + if (lpfc_cmd->prot_seg_cnt + > phba->cfg_prot_sg_seg_cnt) { + printk(KERN_ERR "%s: Too many prot sg segments " + "from dma_map_sg. Config %d," + "prot_seg_cnt %d\n", __func__, + phba->cfg_prot_sg_seg_cnt, + lpfc_cmd->prot_seg_cnt); + dma_unmap_sg(&phba->pcidev->dev, + scsi_prot_sglist(scsi_cmnd), + scsi_prot_sg_count(scsi_cmnd), + datadir); + scsi_dma_unmap(scsi_cmnd); + return 1; + } + + num_bde = lpfc_bg_setup_bpl_prot(phba, scsi_cmnd, bpl, + datasegcnt, protsegcnt); + /* we shoud have 3 or more entries in buffer list */ + if (num_bde < 3) + goto err; + break; + } + case LPFC_PG_TYPE_INVALID: + default: + lpfc_printf_log(phba, KERN_ERR, LOG_FCP, + "9022 Unexpected protection group %i\n", + prot_group_type); + return 1; + } + } + + /* + * Finish initializing those IOCB fields that are dependent on the + * scsi_cmnd request_buffer. Note that the bdeSize is explicitly + * reinitialized since all iocb memory resources are used many times + * for transmit, receive, and continuation bpl's. + */ + iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); + iocb_cmd->un.fcpi64.bdl.bdeSize += (num_bde * sizeof(struct ulp_bde64)); + iocb_cmd->ulpBdeCount = 1; + iocb_cmd->ulpLe = 1; + + fcpdl = scsi_bufflen(scsi_cmnd); + + if (scsi_get_prot_type(scsi_cmnd) == SCSI_PROT_DIF_TYPE1) { + /* + * We are in DIF Type 1 mode + * Every data block has a 8 byte DIF (trailer) + * attached to it. Must ajust FCP data length + */ + blksize = lpfc_cmd_blksize(scsi_cmnd); + diflen = (fcpdl / blksize) * 8; + fcpdl += diflen; + } + fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); + + /* + * Due to difference in data length between DIF/non-DIF paths, + * we need to set word 4 of IOCB here + */ + iocb_cmd->un.fcpi.fcpi_parm = fcpdl; + return 0; +err: + lpfc_printf_log(phba, KERN_ERR, LOG_FCP, + "9023 Could not setup all needed BDE's" + "prot_group_type=%d, num_bde=%d\n", + prot_group_type, num_bde); + return 1; +} + +/* + * This function checks for BlockGuard errors detected by + * the HBA. In case of errors, the ASC/ASCQ fields in the + * sense buffer will be set accordingly, paired with + * ILLEGAL_REQUEST to signal to the kernel that the HBA + * detected corruption. + * + * Returns: + * 0 - No error found + * 1 - BlockGuard error found + * -1 - Internal error (bad profile, ...etc) + */ +static int +lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd, + struct lpfc_iocbq *pIocbOut) +{ + struct scsi_cmnd *cmd = lpfc_cmd->pCmd; + struct sli3_bg_fields *bgf = &pIocbOut->iocb.unsli3.sli3_bg; + int ret = 0; + uint32_t bghm = bgf->bghm; + uint32_t bgstat = bgf->bgstat; + uint64_t failing_sector = 0; + + printk(KERN_ERR "BG ERROR in cmd 0x%x lba 0x%llx blk cnt 0x%lx " + "bgstat=0x%x bghm=0x%x\n", + cmd->cmnd[0], (unsigned long long)scsi_get_lba(cmd), + cmd->request->nr_sectors, bgstat, bghm); + + spin_lock(&_dump_buf_lock); + if (!_dump_buf_done) { + printk(KERN_ERR "Saving Data for %u blocks to debugfs\n", + (cmd->cmnd[7] << 8 | cmd->cmnd[8])); + lpfc_debug_save_data(cmd); + + /* If we have a prot sgl, save the DIF buffer */ + if (lpfc_prot_group_type(phba, cmd) == + LPFC_PG_TYPE_DIF_BUF) { + printk(KERN_ERR "Saving DIF for %u blocks to debugfs\n", + (cmd->cmnd[7] << 8 | cmd->cmnd[8])); + lpfc_debug_save_dif(cmd); + } + + _dump_buf_done = 1; + } + spin_unlock(&_dump_buf_lock); + + if (lpfc_bgs_get_invalid_prof(bgstat)) { + cmd->result = ScsiResult(DID_ERROR, 0); + printk(KERN_ERR "Invalid BlockGuard profile. bgstat:0x%x\n", + bgstat); + ret = (-1); + goto out; + } + + if (lpfc_bgs_get_uninit_dif_block(bgstat)) { + cmd->result = ScsiResult(DID_ERROR, 0); + printk(KERN_ERR "Invalid BlockGuard DIF Block. bgstat:0x%x\n", + bgstat); + ret = (-1); + goto out; + } + + if (lpfc_bgs_get_guard_err(bgstat)) { + ret = 1; + + scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, + 0x10, 0x1); + cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24 + | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); + phba->bg_guard_err_cnt++; + printk(KERN_ERR "BLKGRD: guard_tag error\n"); + } + + if (lpfc_bgs_get_reftag_err(bgstat)) { + ret = 1; + + scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, + 0x10, 0x3); + cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24 + | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); + + phba->bg_reftag_err_cnt++; + printk(KERN_ERR "BLKGRD: ref_tag error\n"); + } + + if (lpfc_bgs_get_apptag_err(bgstat)) { + ret = 1; + + scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, + 0x10, 0x2); + cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24 + | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); + + phba->bg_apptag_err_cnt++; + printk(KERN_ERR "BLKGRD: app_tag error\n"); + } + + if (lpfc_bgs_get_hi_water_mark_present(bgstat)) { + /* + * setup sense data descriptor 0 per SPC-4 as an information + * field, and put the failing LBA in it + */ + cmd->sense_buffer[8] = 0; /* Information */ + cmd->sense_buffer[9] = 0xa; /* Add. length */ + do_div(bghm, cmd->device->sector_size); + + failing_sector = scsi_get_lba(cmd); + failing_sector += bghm; + + put_unaligned_be64(failing_sector, &cmd->sense_buffer[10]); + } + + if (!ret) { + /* No error was reported - problem in FW? */ + cmd->result = ScsiResult(DID_ERROR, 0); + printk(KERN_ERR "BLKGRD: no errors reported!\n"); + } + +out: + return ret; } /** @@ -681,6 +1503,15 @@ lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport, lpfc_worker_wake_up(phba); return; } + +/** + * lpfc_scsi_unprep_dma_buf: Routine to un-map DMA mapping of scatter gather. + * @phba: The Hba for which this call is being executed. + * @psb: The scsi buffer which is going to be un-mapped. + * + * This routine does DMA un-mapping of scatter gather list of scsi command + * field of @lpfc_cmd. + **/ static void lpfc_scsi_unprep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb) { @@ -692,8 +1523,22 @@ lpfc_scsi_unprep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb) */ if (psb->seg_cnt > 0) scsi_dma_unmap(psb->pCmd); + if (psb->prot_seg_cnt > 0) + dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(psb->pCmd), + scsi_prot_sg_count(psb->pCmd), + psb->pCmd->sc_data_direction); } +/** + * lpfc_handler_fcp_err: FCP response handler. + * @vport: The virtual port for which this call is being executed. + * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. + * @rsp_iocb: The response IOCB which contains FCP error. + * + * This routine is called to process response IOCB with status field + * IOSTAT_FCP_RSP_ERROR. This routine sets result field of scsi command + * based upon SCSI and FCP error. + **/ static void lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb) @@ -735,7 +1580,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, logit = LOG_FCP; lpfc_printf_vlog(vport, KERN_WARNING, logit, - "0730 FCP command x%x failed: x%x SNS x%x x%x " + "9024 FCP command x%x failed: x%x SNS x%x x%x " "Data: x%x x%x x%x x%x x%x\n", cmnd->cmnd[0], scsi_status, be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info, @@ -758,7 +1603,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId)); lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, - "0716 FCP Read Underrun, expected %d, " + "9025 FCP Read Underrun, expected %d, " "residual %d Data: x%x x%x x%x\n", be32_to_cpu(fcpcmd->fcpDl), scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0], @@ -774,7 +1619,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, (scsi_get_resid(cmnd) != fcpi_parm)) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, - "0735 FCP Read Check Error " + "9026 FCP Read Check Error " "and Underrun Data: x%x x%x x%x x%x\n", be32_to_cpu(fcpcmd->fcpDl), scsi_get_resid(cmnd), fcpi_parm, @@ -793,7 +1638,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, (scsi_bufflen(cmnd) - scsi_get_resid(cmnd) < cmnd->underflow)) { lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, - "0717 FCP command x%x residual " + "9027 FCP command x%x residual " "underrun converted to error " "Data: x%x x%x x%x\n", cmnd->cmnd[0], scsi_bufflen(cmnd), @@ -802,7 +1647,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, } } else if (resp_info & RESID_OVER) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, - "0720 FCP command x%x residual overrun error. " + "9028 FCP command x%x residual overrun error. " "Data: x%x x%x \n", cmnd->cmnd[0], scsi_bufflen(cmnd), scsi_get_resid(cmnd)); host_status = DID_ERROR; @@ -814,7 +1659,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, } else if ((scsi_status == SAM_STAT_GOOD) && fcpi_parm && (cmnd->sc_data_direction == DMA_FROM_DEVICE)) { lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, - "0734 FCP Read Check Error Data: " + "9029 FCP Read Check Error Data: " "x%x x%x x%x x%x\n", be32_to_cpu(fcpcmd->fcpDl), be32_to_cpu(fcprsp->rspResId), @@ -828,6 +1673,16 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, rsp_iocb); } +/** + * lpfc_scsi_cmd_iocb_cmpl: Scsi cmnd IOCB completion routine. + * @phba: The Hba for which this call is being executed. + * @pIocbIn: The command IOCBQ for the scsi cmnd. + * @pIocbOut: The response IOCBQ for the scsi cmnd . + * + * This routine assigns scsi command result by looking into response IOCB + * status field appropriately. This routine handles QUEUE FULL condition as + * well by ramping down device queue depth. + **/ static void lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, struct lpfc_iocbq *pIocbOut) @@ -846,7 +1701,8 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, lpfc_cmd->result = pIocbOut->iocb.un.ulpWord[4]; lpfc_cmd->status = pIocbOut->iocb.ulpStatus; - atomic_dec(&pnode->cmd_pending); + if (pnode && NLP_CHK_NODE_ACT(pnode)) + atomic_dec(&pnode->cmd_pending); if (lpfc_cmd->status) { if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && @@ -856,7 +1712,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, lpfc_cmd->status = IOSTAT_DEFAULT; lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, - "0729 FCP cmd x%x failed <%d/%d> " + "9030 FCP cmd x%x failed <%d/%d> " "status: x%x result: x%x Data: x%x x%x\n", cmd->cmnd[0], cmd->device ? cmd->device->id : 0xffff, @@ -904,7 +1760,28 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, lpfc_cmd->result == IOERR_ABORT_REQUESTED) { cmd->result = ScsiResult(DID_REQUEUE, 0); break; - } /* else: fall through */ + } + + if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED || + lpfc_cmd->result == IOERR_TX_DMA_FAILED) && + pIocbOut->iocb.unsli3.sli3_bg.bgstat) { + if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { + /* + * This is a response for a BG enabled + * cmd. Parse BG error + */ + lpfc_parse_bg_err(phba, lpfc_cmd, + pIocbOut); + break; + } else { + lpfc_printf_vlog(vport, KERN_WARNING, + LOG_BG, + "9031 non-zero BGSTAT " + "on unprotected cmd"); + } + } + + /* else: fall through */ default: cmd->result = ScsiResult(DID_ERROR, 0); break; @@ -936,23 +1813,31 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, time_after(jiffies, lpfc_cmd->start_time + msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) { spin_lock_irqsave(sdev->host->host_lock, flags); - if ((pnode->cmd_qdepth > atomic_read(&pnode->cmd_pending) && - (atomic_read(&pnode->cmd_pending) > LPFC_MIN_TGT_QDEPTH) && - ((cmd->cmnd[0] == READ_10) || (cmd->cmnd[0] == WRITE_10)))) - pnode->cmd_qdepth = atomic_read(&pnode->cmd_pending); - - pnode->last_change_time = jiffies; + if (pnode && NLP_CHK_NODE_ACT(pnode)) { + if (pnode->cmd_qdepth > + atomic_read(&pnode->cmd_pending) && + (atomic_read(&pnode->cmd_pending) > + LPFC_MIN_TGT_QDEPTH) && + ((cmd->cmnd[0] == READ_10) || + (cmd->cmnd[0] == WRITE_10))) + pnode->cmd_qdepth = + atomic_read(&pnode->cmd_pending); + + pnode->last_change_time = jiffies; + } spin_unlock_irqrestore(sdev->host->host_lock, flags); - } else if ((pnode->cmd_qdepth < LPFC_MAX_TGT_QDEPTH) && + } else if (pnode && NLP_CHK_NODE_ACT(pnode)) { + if ((pnode->cmd_qdepth < LPFC_MAX_TGT_QDEPTH) && time_after(jiffies, pnode->last_change_time + - msecs_to_jiffies(LPFC_TGTQ_INTERVAL))) { - spin_lock_irqsave(sdev->host->host_lock, flags); - pnode->cmd_qdepth += pnode->cmd_qdepth * - LPFC_TGTQ_RAMPUP_PCENT / 100; - if (pnode->cmd_qdepth > LPFC_MAX_TGT_QDEPTH) - pnode->cmd_qdepth = LPFC_MAX_TGT_QDEPTH; - pnode->last_change_time = jiffies; - spin_unlock_irqrestore(sdev->host->host_lock, flags); + msecs_to_jiffies(LPFC_TGTQ_INTERVAL))) { + spin_lock_irqsave(sdev->host->host_lock, flags); + pnode->cmd_qdepth += pnode->cmd_qdepth * + LPFC_TGTQ_RAMPUP_PCENT / 100; + if (pnode->cmd_qdepth > LPFC_MAX_TGT_QDEPTH) + pnode->cmd_qdepth = LPFC_MAX_TGT_QDEPTH; + pnode->last_change_time = jiffies; + spin_unlock_irqrestore(sdev->host->host_lock, flags); + } } lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); @@ -1067,6 +1952,15 @@ lpfc_fcpcmd_to_iocb(uint8_t *data, struct fcp_cmnd *fcp_cmnd) } } +/** + * lpfc_scsi_prep_cmnd: Routine to convert scsi cmnd to FCP information unit. + * @vport: The virtual port for which this call is being executed. + * @lpfc_cmd: The scsi command which needs to send. + * @pnode: Pointer to lpfc_nodelist. + * + * This routine initializes fcp_cmnd and iocb data structure from scsi command + * to transfer. + **/ static void lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_nodelist *pnode) @@ -1122,7 +2016,6 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, } else { iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR; iocb_cmd->ulpPU = PARM_READ_CHECK; - iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); fcp_cmnd->fcpCntl3 = READ_DATA; phba->fc4InputRequests++; } @@ -1133,7 +2026,8 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, fcp_cmnd->fcpCntl3 = 0; phba->fc4ControlRequests++; } - if (phba->sli_rev == 3) + if (phba->sli_rev == 3 && + !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd); /* * Finish initializing those IOCB fields that are independent @@ -1152,6 +2046,19 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, piocbq->vport = vport; } +/** + * lpfc_scsi_prep_task_mgmt_cmnd: Convert scsi TM cmnd to FCP information unit. + * @vport: The virtual port for which this call is being executed. + * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. + * @lun: Logical unit number. + * @task_mgmt_cmd: SCSI task management command. + * + * This routine creates FCP information unit corresponding to @task_mgmt_cmd. + * + * Return codes: + * 0 - Error + * 1 - Success + **/ static int lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, @@ -1178,7 +2085,8 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); int_to_scsilun(lun, &fcp_cmnd->fcp_lun); fcp_cmnd->fcpCntl2 = task_mgmt_cmd; - if (vport->phba->sli_rev == 3) + if (vport->phba->sli_rev == 3 && + !(vport->phba->sli3_options & LPFC_SLI3_BG_ENABLED)) lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd); piocb->ulpCommand = CMD_FCP_ICMND64_CR; piocb->ulpContext = ndlp->nlp_rpi; @@ -1201,6 +2109,15 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, return 1; } +/** + * lpc_taskmgmt_def_cmpl: IOCB completion routine for task management command. + * @phba: The Hba for which this call is being executed. + * @cmdiocbq: Pointer to lpfc_iocbq data structure. + * @rspiocbq: Pointer to lpfc_iocbq data structure. + * + * This routine is IOCB completion routine for device reset and target reset + * routine. This routine release scsi buffer associated with lpfc_cmd. + **/ static void lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq, @@ -1213,6 +2130,20 @@ lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba, return; } +/** + * lpfc_scsi_tgt_reset: Target reset handler. + * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure + * @vport: The virtual port for which this call is being executed. + * @tgt_id: Target ID. + * @lun: Lun number. + * @rdata: Pointer to lpfc_rport_data. + * + * This routine issues a TARGET RESET iocb to reset a target with @tgt_id ID. + * + * Return Code: + * 0x2003 - Error + * 0x2002 - Success. + **/ static int lpfc_scsi_tgt_reset(struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_vport *vport, unsigned tgt_id, unsigned int lun, @@ -1266,6 +2197,15 @@ lpfc_scsi_tgt_reset(struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_vport *vport, return ret; } +/** + * lpfc_info: Info entry point of scsi_host_template data structure. + * @host: The scsi host for which this call is being executed. + * + * This routine provides module information about hba. + * + * Reutrn code: + * Pointer to char - Success. + **/ const char * lpfc_info(struct Scsi_Host *host) { @@ -1295,6 +2235,13 @@ lpfc_info(struct Scsi_Host *host) return lpfcinfobuf; } +/** + * lpfc_poll_rearm_time: Routine to modify fcp_poll timer of hba. + * @phba: The Hba for which this call is being executed. + * + * This routine modifies fcp_poll_timer field of @phba by cfg_poll_tmo. + * The default value of cfg_poll_tmo is 10 milliseconds. + **/ static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba) { unsigned long poll_tmo_expires = @@ -1305,11 +2252,25 @@ static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba) poll_tmo_expires); } +/** + * lpfc_poll_start_timer: Routine to start fcp_poll_timer of HBA. + * @phba: The Hba for which this call is being executed. + * + * This routine starts the fcp_poll_timer of @phba. + **/ void lpfc_poll_start_timer(struct lpfc_hba * phba) { lpfc_poll_rearm_timer(phba); } +/** + * lpfc_poll_timeout: Restart polling timer. + * @ptr: Map to lpfc_hba data structure pointer. + * + * This routine restarts fcp_poll timer, when FCP ring polling is enable + * and FCP Ring interrupt is disable. + **/ + void lpfc_poll_timeout(unsigned long ptr) { struct lpfc_hba *phba = (struct lpfc_hba *) ptr; @@ -1321,6 +2282,20 @@ void lpfc_poll_timeout(unsigned long ptr) } } +/** + * lpfc_queuecommand: Queuecommand entry point of Scsi Host Templater data + * structure. + * @cmnd: Pointer to scsi_cmnd data structure. + * @done: Pointer to done routine. + * + * Driver registers this routine to scsi midlayer to submit a @cmd to process. + * This routine prepares an IOCB from scsi command and provides to firmware. + * The @done callback is invoked after driver finished processing the command. + * + * Return value : + * 0 - Success + * SCSI_MLQUEUE_HOST_BUSY - Block all devices served by this host temporarily. + **/ static int lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) { @@ -1340,6 +2315,17 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) goto out_fail_command; } + if (!(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && + scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) { + + printk(KERN_ERR "BLKGRD ERROR: rcvd protected cmd:%02x op:%02x " + "str=%s without registering for BlockGuard - " + "Rejecting command\n", + cmnd->cmnd[0], scsi_get_prot_op(cmnd), + dif_op_str[scsi_get_prot_op(cmnd)]); + goto out_fail_command; + } + /* * Catch race where our node has transitioned, but the * transport is still transitioning. @@ -1348,12 +2334,13 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) cmnd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, 0); goto out_fail_command; } - if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) + if (vport->cfg_max_scsicmpl_time && + (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth)) goto out_host_busy; lpfc_cmd = lpfc_get_scsi_buf(phba); if (lpfc_cmd == NULL) { - lpfc_adjust_queue_depth(phba); + lpfc_rampdown_queue_depth(phba); lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, "0707 driver's buffer pool is empty, " @@ -1361,7 +2348,6 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) goto out_host_busy; } - lpfc_cmd->start_time = jiffies; /* * Store the midlayer's command structure for the completion phase * and complete the command initialization. @@ -1373,7 +2359,65 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) cmnd->host_scribble = (unsigned char *)lpfc_cmd; cmnd->scsi_done = done; - err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); + if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) { + lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, + "9033 BLKGRD: rcvd protected cmd:%02x op:%02x " + "str=%s\n", + cmnd->cmnd[0], scsi_get_prot_op(cmnd), + dif_op_str[scsi_get_prot_op(cmnd)]); + lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, + "9034 BLKGRD: CDB: %02x %02x %02x %02x %02x " + "%02x %02x %02x %02x %02x \n", + cmnd->cmnd[0], cmnd->cmnd[1], cmnd->cmnd[2], + cmnd->cmnd[3], cmnd->cmnd[4], cmnd->cmnd[5], + cmnd->cmnd[6], cmnd->cmnd[7], cmnd->cmnd[8], + cmnd->cmnd[9]); + if (cmnd->cmnd[0] == READ_10) + lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, + "9035 BLKGRD: READ @ sector %llu, " + "count %lu\n", + (unsigned long long)scsi_get_lba(cmnd), + cmnd->request->nr_sectors); + else if (cmnd->cmnd[0] == WRITE_10) + lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, + "9036 BLKGRD: WRITE @ sector %llu, " + "count %lu cmd=%p\n", + (unsigned long long)scsi_get_lba(cmnd), + cmnd->request->nr_sectors, + cmnd); + + err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); + } else { + lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, + "9038 BLKGRD: rcvd unprotected cmd:%02x op:%02x" + " str=%s\n", + cmnd->cmnd[0], scsi_get_prot_op(cmnd), + dif_op_str[scsi_get_prot_op(cmnd)]); + lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, + "9039 BLKGRD: CDB: %02x %02x %02x %02x %02x " + "%02x %02x %02x %02x %02x \n", + cmnd->cmnd[0], cmnd->cmnd[1], cmnd->cmnd[2], + cmnd->cmnd[3], cmnd->cmnd[4], cmnd->cmnd[5], + cmnd->cmnd[6], cmnd->cmnd[7], cmnd->cmnd[8], + cmnd->cmnd[9]); + if (cmnd->cmnd[0] == READ_10) + lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, + "9040 dbg: READ @ sector %llu, " + "count %lu\n", + (unsigned long long)scsi_get_lba(cmnd), + cmnd->request->nr_sectors); + else if (cmnd->cmnd[0] == WRITE_10) + lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, + "9041 dbg: WRITE @ sector %llu, " + "count %lu cmd=%p\n", + (unsigned long long)scsi_get_lba(cmnd), + cmnd->request->nr_sectors, cmnd); + else + lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, + "9042 dbg: parser not implemented\n"); + err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); + } + if (err) goto out_host_busy_free_buf; @@ -1382,9 +2426,10 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) atomic_inc(&ndlp->cmd_pending); err = lpfc_sli_issue_iocb(phba, &phba->sli.ring[psli->fcp_ring], &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB); - if (err) + if (err) { + atomic_dec(&ndlp->cmd_pending); goto out_host_busy_free_buf; - + } if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { lpfc_sli_poll_fcp_ring(phba); if (phba->cfg_poll & DISABLE_FCP_RING_INT) @@ -1394,7 +2439,6 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) return 0; out_host_busy_free_buf: - atomic_dec(&ndlp->cmd_pending); lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); lpfc_release_scsi_buf(phba, lpfc_cmd); out_host_busy: @@ -1405,6 +2449,12 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) return 0; } +/** + * lpfc_block_error_handler: Routine to block error handler. + * @cmnd: Pointer to scsi_cmnd data structure. + * + * This routine blocks execution till fc_rport state is not FC_PORSTAT_BLCOEKD. + **/ static void lpfc_block_error_handler(struct scsi_cmnd *cmnd) { @@ -1421,6 +2471,17 @@ lpfc_block_error_handler(struct scsi_cmnd *cmnd) return; } +/** + * lpfc_abort_handler: Eh_abort_handler entry point of Scsi Host Template data + *structure. + * @cmnd: Pointer to scsi_cmnd data structure. + * + * This routine aborts @cmnd pending in base driver. + * + * Return code : + * 0x2003 - Error + * 0x2002 - Success + **/ static int lpfc_abort_handler(struct scsi_cmnd *cmnd) { @@ -1516,6 +2577,18 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd) return ret; } +/** + * lpfc_device_reset_handler: eh_device_reset entry point of Scsi Host Template + *data structure. + * @cmnd: Pointer to scsi_cmnd data structure. + * + * This routine does a device reset by sending a TARGET_RESET task management + * command. + * + * Return code : + * 0x2003 - Error + * 0ex2002 - Success + **/ static int lpfc_device_reset_handler(struct scsi_cmnd *cmnd) { @@ -1560,7 +2633,7 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd) fc_get_event_number(), sizeof(scsi_event), (char *)&scsi_event, - SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); + LPFC_NL_VENDOR_ID); if (!rdata || pnode->nlp_state != NLP_STE_MAPPED_NODE) { lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, @@ -1633,6 +2706,17 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd) return ret; } +/** + * lpfc_bus_reset_handler: eh_bus_reset_handler entry point of Scsi Host + * Template data structure. + * @cmnd: Pointer to scsi_cmnd data structure. + * + * This routine does target reset to all target on @cmnd->device->host. + * + * Return Code: + * 0x2003 - Error + * 0x2002 - Success + **/ static int lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) { @@ -1657,7 +2741,7 @@ lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) fc_get_event_number(), sizeof(scsi_event), (char *)&scsi_event, - SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); + LPFC_NL_VENDOR_ID); lpfc_block_error_handler(cmnd); /* @@ -1723,6 +2807,20 @@ lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) return ret; } +/** + * lpfc_slave_alloc: slave_alloc entry point of Scsi Host Template data + * structure. + * @sdev: Pointer to scsi_device. + * + * This routine populates the cmds_per_lun count + 2 scsi_bufs into this host's + * globally available list of scsi buffers. This routine also makes sure scsi + * buffer is not allocated more than HBA limit conveyed to midlayer. This list + * of scsi buffer exists for the lifetime of the driver. + * + * Return codes: + * non-0 - Error + * 0 - Success + **/ static int lpfc_slave_alloc(struct scsi_device *sdev) { @@ -1784,6 +2882,19 @@ lpfc_slave_alloc(struct scsi_device *sdev) return 0; } +/** + * lpfc_slave_configure: slave_configure entry point of Scsi Host Templater data + * structure. + * @sdev: Pointer to scsi_device. + * + * This routine configures following items + * - Tag command queuing support for @sdev if supported. + * - Dev loss time out value of fc_rport. + * - Enable SLI polling for fcp ring if ENABLE_FCP_RING_POLLING flag is set. + * + * Return codes: + * 0 - Success + **/ static int lpfc_slave_configure(struct scsi_device *sdev) { @@ -1813,6 +2924,12 @@ lpfc_slave_configure(struct scsi_device *sdev) return 0; } +/** + * lpfc_slave_destroy: slave_destroy entry point of SHT data structure. + * @sdev: Pointer to scsi_device. + * + * This routine sets @sdev hostatdata filed to null. + **/ static void lpfc_slave_destroy(struct scsi_device *sdev) { diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h index 437f182..c7c440d 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.h +++ b/drivers/scsi/lpfc/lpfc_scsi.h @@ -124,6 +124,8 @@ struct lpfc_scsi_buf { uint32_t seg_cnt; /* Number of scatter-gather segments returned by * dma_map_sg. The driver needs this for calls * to dma_unmap_sg. */ + uint32_t prot_seg_cnt; /* seg_cnt's counterpart for protection data */ + dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */ /* diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 8ab5bab..01dfdc8 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -542,6 +542,7 @@ lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, */ nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; + if (pring->ringno == LPFC_ELS_RING) { lpfc_debugfs_slow_ring_trc(phba, "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", @@ -1259,68 +1260,6 @@ lpfc_sli_handle_mb_event(struct lpfc_hba *phba) } /** - * lpfc_sli_replace_hbqbuff: Replace the HBQ buffer with a new buffer. - * @phba: Pointer to HBA context object. - * @tag: Tag for the HBQ buffer. - * - * This function is called from unsolicited event handler code path to get the - * HBQ buffer associated with an unsolicited iocb. This function is called with - * no lock held. It returns the buffer associated with the given tag and posts - * another buffer to the firmware. Note that the new buffer must be allocated - * before taking the hbalock and that the hba lock must be held until it is - * finished with the hbq entry swap. - **/ -static struct lpfc_dmabuf * -lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag) -{ - struct hbq_dmabuf *hbq_entry, *new_hbq_entry; - uint32_t hbqno; - void *virt; /* virtual address ptr */ - dma_addr_t phys; /* mapped address */ - unsigned long flags; - - hbqno = tag >> 16; - new_hbq_entry = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); - /* Check whether HBQ is still in use */ - spin_lock_irqsave(&phba->hbalock, flags); - if (!phba->hbq_in_use) { - if (new_hbq_entry) - (phba->hbqs[hbqno].hbq_free_buffer)(phba, - new_hbq_entry); - spin_unlock_irqrestore(&phba->hbalock, flags); - return NULL; - } - - hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); - if (hbq_entry == NULL) { - if (new_hbq_entry) - (phba->hbqs[hbqno].hbq_free_buffer)(phba, - new_hbq_entry); - spin_unlock_irqrestore(&phba->hbalock, flags); - return NULL; - } - list_del(&hbq_entry->dbuf.list); - - if (new_hbq_entry == NULL) { - list_add_tail(&hbq_entry->dbuf.list, &phba->hbqbuf_in_list); - spin_unlock_irqrestore(&phba->hbalock, flags); - return &hbq_entry->dbuf; - } - new_hbq_entry->tag = -1; - phys = new_hbq_entry->dbuf.phys; - virt = new_hbq_entry->dbuf.virt; - new_hbq_entry->dbuf.phys = hbq_entry->dbuf.phys; - new_hbq_entry->dbuf.virt = hbq_entry->dbuf.virt; - hbq_entry->dbuf.phys = phys; - hbq_entry->dbuf.virt = virt; - lpfc_sli_free_hbq(phba, hbq_entry); - list_add_tail(&new_hbq_entry->dbuf.list, &phba->hbqbuf_in_list); - spin_unlock_irqrestore(&phba->hbalock, flags); - - return &new_hbq_entry->dbuf; -} - -/** * lpfc_sli_get_buff: Get the buffer associated with the buffer tag. * @phba: Pointer to HBA context object. * @pring: Pointer to driver SLI ring object. @@ -1334,13 +1273,17 @@ lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag) **/ static struct lpfc_dmabuf * lpfc_sli_get_buff(struct lpfc_hba *phba, - struct lpfc_sli_ring *pring, - uint32_t tag) + struct lpfc_sli_ring *pring, + uint32_t tag) { + struct hbq_dmabuf *hbq_entry; + if (tag & QUE_BUFTAG_BIT) return lpfc_sli_ring_taggedbuf_get(phba, pring, tag); - else - return lpfc_sli_replace_hbqbuff(phba, tag); + hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); + if (!hbq_entry) + return NULL; + return &hbq_entry->dbuf; } @@ -1372,8 +1315,6 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, match = 0; irsp = &(saveq->iocb); - if (irsp->ulpStatus == IOSTAT_NEED_BUFFER) - return 1; if (irsp->ulpCommand == CMD_ASYNC_STATUS) { if (pring->lpfc_sli_rcv_async_status) pring->lpfc_sli_rcv_async_status(phba, pring, saveq); @@ -1982,7 +1923,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { spin_unlock_irqrestore(&phba->hbalock, iflag); - lpfc_adjust_queue_depth(phba); + lpfc_rampdown_queue_depth(phba); spin_lock_irqsave(&phba->hbalock, iflag); } @@ -2225,7 +2166,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { spin_unlock_irqrestore(&phba->hbalock, iflag); - lpfc_adjust_queue_depth(phba); + lpfc_rampdown_queue_depth(phba); spin_lock_irqsave(&phba->hbalock, iflag); } @@ -2790,7 +2731,6 @@ lpfc_sli_brdrestart(struct lpfc_hba *phba) { MAILBOX_t *mb; struct lpfc_sli *psli; - uint16_t skip_post; volatile uint32_t word0; void __iomem *to_slim; @@ -2815,13 +2755,10 @@ lpfc_sli_brdrestart(struct lpfc_hba *phba) readl(to_slim); /* flush */ /* Only skip post after fc_ffinit is completed */ - if (phba->pport->port_state) { - skip_post = 1; + if (phba->pport->port_state) word0 = 1; /* This is really setting up word1 */ - } else { - skip_post = 0; + else word0 = 0; /* This is really setting up word1 */ - } to_slim = phba->MBslimaddr + sizeof (uint32_t); writel(*(uint32_t *) mb, to_slim); readl(to_slim); /* flush */ @@ -2835,10 +2772,8 @@ lpfc_sli_brdrestart(struct lpfc_hba *phba) memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); psli->stats_start = get_seconds(); - if (skip_post) - mdelay(100); - else - mdelay(2000); + /* Give the INITFF and Post time to settle. */ + mdelay(100); lpfc_hba_down_post(phba); @@ -3084,7 +3019,6 @@ lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode) spin_unlock_irq(&phba->hbalock); phba->pport->port_state = LPFC_VPORT_UNKNOWN; lpfc_sli_brdrestart(phba); - msleep(2500); rc = lpfc_sli_chipset_init(phba); if (rc) break; @@ -3111,7 +3045,8 @@ lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode) phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED | LPFC_SLI3_CRP_ENABLED | - LPFC_SLI3_INB_ENABLED); + LPFC_SLI3_INB_ENABLED | + LPFC_SLI3_BG_ENABLED); if (rc != MBX_SUCCESS) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0442 Adapter failed to init, mbxCmd x%x " @@ -3144,17 +3079,29 @@ lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode) phba->sli3_options |= LPFC_SLI3_CRP_ENABLED; if (pmb->mb.un.varCfgPort.ginb) { phba->sli3_options |= LPFC_SLI3_INB_ENABLED; + phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get; phba->port_gp = phba->mbox->us.s3_inb_pgp.port; phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy; phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter; phba->inb_last_counter = phba->mbox->us.s3_inb_pgp.counter; } else { + phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get; phba->port_gp = phba->mbox->us.s3_pgp.port; phba->inb_ha_copy = NULL; phba->inb_counter = NULL; } + + if (phba->cfg_enable_bg) { + if (pmb->mb.un.varCfgPort.gbg) + phba->sli3_options |= LPFC_SLI3_BG_ENABLED; + else + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0443 Adapter did not grant " + "BlockGuard\n"); + } } else { + phba->hbq_get = NULL; phba->port_gp = phba->mbox->us.s2.port; phba->inb_ha_copy = NULL; phba->inb_counter = NULL; @@ -3305,10 +3252,6 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba) struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring; - if (!(phba->pport->work_port_events & WORKER_MBOX_TMO)) { - return; - } - /* Mbox cmd <mbxCommand> timeout */ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", @@ -4005,7 +3948,7 @@ lpfc_sli_async_event_handler(struct lpfc_hba * phba, shost = lpfc_shost_from_vport(phba->pport); fc_host_post_vendor_event(shost, fc_get_event_number(), sizeof(temp_event_data), (char *) &temp_event_data, - SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); + LPFC_NL_VENDOR_ID); } @@ -5184,6 +5127,10 @@ lpfc_sli_check_eratt(struct lpfc_hba *phba) { uint32_t ha_copy; + /* If PCI channel is offline, don't process it */ + if (unlikely(pci_channel_offline(phba->pcidev))) + return 0; + /* If somebody is waiting to handle an eratt, don't process it * here. The brdkill function will do this. */ @@ -5242,6 +5189,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id) uint32_t ha_copy; uint32_t work_ha_copy; unsigned long status; + unsigned long iflag; uint32_t control; MAILBOX_t *mbox, *pmbox; @@ -5274,7 +5222,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id) if (unlikely(phba->link_state < LPFC_LINK_DOWN)) return IRQ_NONE; /* Need to read HA REG for slow-path events */ - spin_lock(&phba->hbalock); + spin_lock_irqsave(&phba->hbalock, iflag); ha_copy = readl(phba->HAregaddr); /* If somebody is waiting to handle an eratt don't process it * here. The brdkill function will do this. @@ -5294,7 +5242,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id) writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)), phba->HAregaddr); readl(phba->HAregaddr); /* flush */ - spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); } else ha_copy = phba->ha_copy; @@ -5307,13 +5255,13 @@ lpfc_sp_intr_handler(int irq, void *dev_id) * Turn off Link Attention interrupts * until CLEAR_LA done */ - spin_lock(&phba->hbalock); + spin_lock_irqsave(&phba->hbalock, iflag); phba->sli.sli_flag &= ~LPFC_PROCESS_LA; control = readl(phba->HCregaddr); control &= ~HC_LAINT_ENA; writel(control, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ - spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); } else work_ha_copy &= ~HA_LATT; @@ -5328,7 +5276,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id) (HA_RXMASK << (4*LPFC_ELS_RING))); status >>= (4*LPFC_ELS_RING); if (status & HA_RXMASK) { - spin_lock(&phba->hbalock); + spin_lock_irqsave(&phba->hbalock, iflag); control = readl(phba->HCregaddr); lpfc_debugfs_slow_ring_trc(phba, @@ -5357,10 +5305,10 @@ lpfc_sp_intr_handler(int irq, void *dev_id) (uint32_t)((unsigned long) &phba->work_waitq)); } - spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); } } - spin_lock(&phba->hbalock); + spin_lock_irqsave(&phba->hbalock, iflag); if (work_ha_copy & HA_ERATT) lpfc_sli_read_hs(phba); if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) { @@ -5372,7 +5320,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id) /* First check out the status word */ lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); if (pmbox->mbxOwner != OWN_HOST) { - spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); /* * Stray Mailbox Interrupt, mbxCommand <cmd> * mbxStatus <status> @@ -5389,7 +5337,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id) work_ha_copy &= ~HA_MBATT; } else { phba->sli.mbox_active = NULL; - spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); phba->last_completion_time = jiffies; del_timer(&phba->sli.mbox_tmo); if (pmb->mbox_cmpl) { @@ -5438,14 +5386,18 @@ lpfc_sp_intr_handler(int irq, void *dev_id) goto send_current_mbox; } } - spin_lock(&phba->pport->work_port_lock); + spin_lock_irqsave( + &phba->pport->work_port_lock, + iflag); phba->pport->work_port_events &= ~WORKER_MBOX_TMO; - spin_unlock(&phba->pport->work_port_lock); + spin_unlock_irqrestore( + &phba->pport->work_port_lock, + iflag); lpfc_mbox_cmpl_put(phba, pmb); } } else - spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active == NULL)) { @@ -5461,9 +5413,9 @@ send_current_mbox: "MBX_SUCCESS"); } - spin_lock(&phba->hbalock); + spin_lock_irqsave(&phba->hbalock, iflag); phba->work_ha |= work_ha_copy; - spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); lpfc_worker_wake_up(phba); } return IRQ_HANDLED; @@ -5495,6 +5447,7 @@ lpfc_fp_intr_handler(int irq, void *dev_id) struct lpfc_hba *phba; uint32_t ha_copy; unsigned long status; + unsigned long iflag; /* Get the driver's phba structure from the dev_id and * assume the HBA is not interrupting. @@ -5520,11 +5473,11 @@ lpfc_fp_intr_handler(int irq, void *dev_id) /* Need to read HA REG for FCP ring and other ring events */ ha_copy = readl(phba->HAregaddr); /* Clear up only attention source related to fast-path */ - spin_lock(&phba->hbalock); + spin_lock_irqsave(&phba->hbalock, iflag); writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)), phba->HAregaddr); readl(phba->HAregaddr); /* flush */ - spin_unlock(&phba->hbalock); + spin_unlock_irqrestore(&phba->hbalock, iflag); } else ha_copy = phba->ha_copy; diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h index cc43e9d..7e32e95 100644 --- a/drivers/scsi/lpfc/lpfc_version.h +++ b/drivers/scsi/lpfc/lpfc_version.h @@ -18,7 +18,7 @@ * included with this package. * *******************************************************************/ -#define LPFC_DRIVER_VERSION "8.2.8" +#define LPFC_DRIVER_VERSION "8.3.0" #define LPFC_DRIVER_NAME "lpfc" #define LPFC_SP_DRIVER_HANDLER_NAME "lpfc:sp" diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c index a7de1cc..63b54c6 100644 --- a/drivers/scsi/lpfc/lpfc_vport.c +++ b/drivers/scsi/lpfc/lpfc_vport.c @@ -288,10 +288,8 @@ lpfc_vport_create(struct fc_vport *fc_vport, bool disable) int vpi; int rc = VPORT_ERROR; int status; - int size; - if ((phba->sli_rev < 3) || - !(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) { + if ((phba->sli_rev < 3) || !(phba->cfg_enable_npiv)) { lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, "1808 Create VPORT failed: " "NPIV is not enabled: SLImode:%d\n", @@ -351,20 +349,6 @@ lpfc_vport_create(struct fc_vport *fc_vport, bool disable) memcpy(vport->fc_portname.u.wwn, vport->fc_sparam.portName.u.wwn, 8); memcpy(vport->fc_nodename.u.wwn, vport->fc_sparam.nodeName.u.wwn, 8); - size = strnlen(fc_vport->symbolic_name, LPFC_VNAME_LEN); - if (size) { - vport->vname = kzalloc(size+1, GFP_KERNEL); - if (!vport->vname) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, - "1814 Create VPORT failed. " - "vname allocation failed.\n"); - rc = VPORT_ERROR; - lpfc_free_vpi(phba, vpi); - destroy_port(vport); - goto error_out; - } - memcpy(vport->vname, fc_vport->symbolic_name, size+1); - } if (fc_vport->node_name != 0) u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn); if (fc_vport->port_name != 0) @@ -394,6 +378,9 @@ lpfc_vport_create(struct fc_vport *fc_vport, bool disable) goto error_out; } + /* Create binary sysfs attribute for vport */ + lpfc_alloc_sysfs_attr(vport); + *(struct lpfc_vport **)fc_vport->dd_data = vport; vport->fc_vport = fc_vport; @@ -405,6 +392,7 @@ lpfc_vport_create(struct fc_vport *fc_vport, bool disable) } if (disable) { + lpfc_vport_set_state(vport, FC_VPORT_DISABLED); rc = VPORT_OK; goto out; } @@ -587,8 +575,12 @@ lpfc_vport_delete(struct fc_vport *fc_vport) spin_lock_irq(&phba->hbalock); vport->load_flag |= FC_UNLOADING; spin_unlock_irq(&phba->hbalock); - kfree(vport->vname); + + lpfc_free_sysfs_attr(vport); + lpfc_debugfs_terminate(vport); + + /* Remove FC host and then SCSI host with the vport */ fc_remove_host(lpfc_shost_from_vport(vport)); scsi_remove_host(lpfc_shost_from_vport(vport)); diff --git a/drivers/scsi/mac_esp.c b/drivers/scsi/mac_esp.c index 887682a..c24e86f 100644 --- a/drivers/scsi/mac_esp.c +++ b/drivers/scsi/mac_esp.c @@ -53,7 +53,8 @@ struct mac_esp_priv { void __iomem *pdma_io; int error; }; -static struct platform_device *internal_esp, *external_esp; +static struct platform_device *internal_pdev, *external_pdev; +static struct esp *esp_chips[2]; #define MAC_ESP_GET_PRIV(esp) ((struct mac_esp_priv *) \ platform_get_drvdata((struct platform_device *) \ @@ -170,7 +171,7 @@ static inline int mac_esp_wait_for_dreq(struct esp *esp) #define MAC_ESP_PDMA_LOOP(operands) \ asm volatile ( \ - " tstw %2 \n" \ + " tstw %1 \n" \ " jbeq 20f \n" \ "1: movew " operands " \n" \ "2: movew " operands " \n" \ @@ -188,14 +189,14 @@ static inline int mac_esp_wait_for_dreq(struct esp *esp) "14: movew " operands " \n" \ "15: movew " operands " \n" \ "16: movew " operands " \n" \ - " subqw #1,%2 \n" \ + " subqw #1,%1 \n" \ " jbne 1b \n" \ - "20: tstw %3 \n" \ + "20: tstw %2 \n" \ " jbeq 30f \n" \ "21: movew " operands " \n" \ - " subqw #1,%3 \n" \ + " subqw #1,%2 \n" \ " jbne 21b \n" \ - "30: tstw %4 \n" \ + "30: tstw %3 \n" \ " jbeq 40f \n" \ "31: moveb " operands " \n" \ "32: nop \n" \ @@ -223,8 +224,8 @@ static inline int mac_esp_wait_for_dreq(struct esp *esp) " .long 31b,40b \n" \ " .long 32b,40b \n" \ " .previous \n" \ - : "+a" (addr) \ - : "a" (mep->pdma_io), "r" (count32), "r" (count2), "g" (esp_count)) + : "+a" (addr), "+r" (count32), "+r" (count2) \ + : "g" (count1), "a" (mep->pdma_io)) static void mac_esp_send_pdma_cmd(struct esp *esp, u32 addr, u32 esp_count, u32 dma_count, int write, u8 cmd) @@ -247,19 +248,20 @@ static void mac_esp_send_pdma_cmd(struct esp *esp, u32 addr, u32 esp_count, do { unsigned int count32 = esp_count >> 5; unsigned int count2 = (esp_count & 0x1F) >> 1; + unsigned int count1 = esp_count & 1; unsigned int start_addr = addr; if (mac_esp_wait_for_dreq(esp)) break; if (write) { - MAC_ESP_PDMA_LOOP("%1@,%0@+"); + MAC_ESP_PDMA_LOOP("%4@,%0@+"); esp_count -= addr - start_addr; } else { unsigned int n; - MAC_ESP_PDMA_LOOP("%0@+,%1@"); + MAC_ESP_PDMA_LOOP("%0@+,%4@"); if (mac_esp_wait_for_empty_fifo(esp)) break; @@ -442,6 +444,32 @@ static u32 mac_esp_dma_length_limit(struct esp *esp, u32 dma_addr, u32 dma_len) return dma_len > 0xFFFF ? 0xFFFF : dma_len; } +static irqreturn_t mac_scsi_esp_intr(int irq, void *dev_id) +{ + int got_intr; + + /* + * This is an edge triggered IRQ, so we have to be careful to + * avoid missing a transition when it is shared by two ESP devices. + */ + + do { + got_intr = 0; + if (esp_chips[0] && + (mac_esp_read8(esp_chips[0], ESP_STATUS) & ESP_STAT_INTR)) { + (void)scsi_esp_intr(irq, esp_chips[0]); + got_intr = 1; + } + if (esp_chips[1] && + (mac_esp_read8(esp_chips[1], ESP_STATUS) & ESP_STAT_INTR)) { + (void)scsi_esp_intr(irq, esp_chips[1]); + got_intr = 1; + } + } while (got_intr); + + return IRQ_HANDLED; +} + static struct esp_driver_ops mac_esp_ops = { .esp_write8 = mac_esp_write8, .esp_read8 = mac_esp_read8, @@ -556,10 +584,16 @@ static int __devinit esp_mac_probe(struct platform_device *dev) } host->irq = IRQ_MAC_SCSI; - err = request_irq(host->irq, scsi_esp_intr, IRQF_SHARED, "Mac ESP", - esp); - if (err < 0) - goto fail_free_priv; + esp_chips[dev->id] = esp; + mb(); + if (esp_chips[!dev->id] == NULL) { + err = request_irq(host->irq, mac_scsi_esp_intr, 0, + "Mac ESP", NULL); + if (err < 0) { + esp_chips[dev->id] = NULL; + goto fail_free_priv; + } + } err = scsi_esp_register(esp, &dev->dev); if (err) @@ -568,7 +602,8 @@ static int __devinit esp_mac_probe(struct platform_device *dev) return 0; fail_free_irq: - free_irq(host->irq, esp); + if (esp_chips[!dev->id] == NULL) + free_irq(host->irq, esp); fail_free_priv: kfree(mep); fail_free_command_block: @@ -587,7 +622,9 @@ static int __devexit esp_mac_remove(struct platform_device *dev) scsi_esp_unregister(esp); - free_irq(irq, esp); + esp_chips[dev->id] = NULL; + if (!(esp_chips[0] || esp_chips[1])) + free_irq(irq, NULL); kfree(mep); @@ -614,19 +651,18 @@ static int __init mac_esp_init(void) if (err) return err; - internal_esp = platform_device_alloc(DRV_MODULE_NAME, 0); - if (internal_esp && platform_device_add(internal_esp)) { - platform_device_put(internal_esp); - internal_esp = NULL; + internal_pdev = platform_device_alloc(DRV_MODULE_NAME, 0); + if (internal_pdev && platform_device_add(internal_pdev)) { + platform_device_put(internal_pdev); + internal_pdev = NULL; } - - external_esp = platform_device_alloc(DRV_MODULE_NAME, 1); - if (external_esp && platform_device_add(external_esp)) { - platform_device_put(external_esp); - external_esp = NULL; + external_pdev = platform_device_alloc(DRV_MODULE_NAME, 1); + if (external_pdev && platform_device_add(external_pdev)) { + platform_device_put(external_pdev); + external_pdev = NULL; } - if (internal_esp || external_esp) { + if (internal_pdev || external_pdev) { return 0; } else { platform_driver_unregister(&esp_mac_driver); @@ -638,13 +674,13 @@ static void __exit mac_esp_exit(void) { platform_driver_unregister(&esp_mac_driver); - if (internal_esp) { - platform_device_unregister(internal_esp); - internal_esp = NULL; + if (internal_pdev) { + platform_device_unregister(internal_pdev); + internal_pdev = NULL; } - if (external_esp) { - platform_device_unregister(external_esp); - external_esp = NULL; + if (external_pdev) { + platform_device_unregister(external_pdev); + external_pdev = NULL; } } diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c index 22052bb..d06ec5a 100644 --- a/drivers/scsi/nsp32.c +++ b/drivers/scsi/nsp32.c @@ -3401,8 +3401,7 @@ static int __devinit nsp32_probe(struct pci_dev *pdev, const struct pci_device_i data->IrqNumber = pdev->irq; data->BaseAddress = pci_resource_start(pdev, 0); data->NumAddress = pci_resource_len (pdev, 0); - data->MmioAddress = ioremap_nocache(pci_resource_start(pdev, 1), - pci_resource_len (pdev, 1)); + data->MmioAddress = pci_ioremap_bar(pdev, 1); data->MmioLength = pci_resource_len (pdev, 1); pci_set_master(pdev); diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index b6cd12b..8cb9240 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -4294,8 +4294,7 @@ qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) error = -ENODEV; #if MEMORY_MAPPED_IO - ha->mmpbase = ioremap(pci_resource_start(ha->pdev, 1), - pci_resource_len(ha->pdev, 1)); + ha->mmpbase = pci_ioremap_bar(ha->pdev, 1); if (!ha->mmpbase) { printk(KERN_INFO "qla1280: Unable to map I/O memory\n"); goto error_free_response_ring; diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index ed73196..cd53627 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -19,8 +19,9 @@ qla2x00_sysfs_read_fw_dump(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { - struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, + struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); + struct qla_hw_data *ha = vha->hw; if (ha->fw_dump_reading == 0) return 0; @@ -34,8 +35,9 @@ qla2x00_sysfs_write_fw_dump(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { - struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, + struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); + struct qla_hw_data *ha = vha->hw; int reading; if (off != 0) @@ -48,7 +50,7 @@ qla2x00_sysfs_write_fw_dump(struct kobject *kobj, break; qla_printk(KERN_INFO, ha, - "Firmware dump cleared on (%ld).\n", ha->host_no); + "Firmware dump cleared on (%ld).\n", vha->host_no); ha->fw_dump_reading = 0; ha->fw_dumped = 0; @@ -59,14 +61,14 @@ qla2x00_sysfs_write_fw_dump(struct kobject *kobj, qla_printk(KERN_INFO, ha, "Raw firmware dump ready for read on (%ld).\n", - ha->host_no); + vha->host_no); } break; case 2: - qla2x00_alloc_fw_dump(ha); + qla2x00_alloc_fw_dump(vha); break; case 3: - qla2x00_system_error(ha); + qla2x00_system_error(vha); break; } return (count); @@ -87,8 +89,9 @@ qla2x00_sysfs_read_nvram(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { - struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, + struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); + struct qla_hw_data *ha = vha->hw; if (!capable(CAP_SYS_ADMIN)) return 0; @@ -103,8 +106,9 @@ qla2x00_sysfs_write_nvram(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { - struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, + struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); + struct qla_hw_data *ha = vha->hw; uint16_t cnt; if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size) @@ -134,11 +138,11 @@ qla2x00_sysfs_write_nvram(struct kobject *kobj, } /* Write NVRAM. */ - ha->isp_ops->write_nvram(ha, (uint8_t *)buf, ha->nvram_base, count); - ha->isp_ops->read_nvram(ha, (uint8_t *)ha->nvram, ha->nvram_base, + ha->isp_ops->write_nvram(vha, (uint8_t *)buf, ha->nvram_base, count); + ha->isp_ops->read_nvram(vha, (uint8_t *)ha->nvram, ha->nvram_base, count); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); return (count); } @@ -158,8 +162,9 @@ qla2x00_sysfs_read_optrom(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { - struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, + struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); + struct qla_hw_data *ha = vha->hw; if (ha->optrom_state != QLA_SREADING) return 0; @@ -173,8 +178,9 @@ qla2x00_sysfs_write_optrom(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { - struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, + struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); + struct qla_hw_data *ha = vha->hw; if (ha->optrom_state != QLA_SWRITING) return -EINVAL; @@ -203,8 +209,10 @@ qla2x00_sysfs_write_optrom_ctl(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { - struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, + struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); + struct qla_hw_data *ha = vha->hw; + uint32_t start = 0; uint32_t size = ha->optrom_size; int val, valid; @@ -262,7 +270,7 @@ qla2x00_sysfs_write_optrom_ctl(struct kobject *kobj, ha->optrom_region_start, ha->optrom_region_size)); memset(ha->optrom_buffer, 0, ha->optrom_region_size); - ha->isp_ops->read_optrom(ha, ha->optrom_buffer, + ha->isp_ops->read_optrom(vha, ha->optrom_buffer, ha->optrom_region_start, ha->optrom_region_size); break; case 2: @@ -333,7 +341,7 @@ qla2x00_sysfs_write_optrom_ctl(struct kobject *kobj, "Writing flash region -- 0x%x/0x%x.\n", ha->optrom_region_start, ha->optrom_region_size)); - ha->isp_ops->write_optrom(ha, ha->optrom_buffer, + ha->isp_ops->write_optrom(vha, ha->optrom_buffer, ha->optrom_region_start, ha->optrom_region_size); break; default: @@ -356,8 +364,9 @@ qla2x00_sysfs_read_vpd(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { - struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, + struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); + struct qla_hw_data *ha = vha->hw; if (!capable(CAP_SYS_ADMIN)) return 0; @@ -371,15 +380,16 @@ qla2x00_sysfs_write_vpd(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { - struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, + struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); + struct qla_hw_data *ha = vha->hw; if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->vpd_size) return 0; /* Write NVRAM. */ - ha->isp_ops->write_nvram(ha, (uint8_t *)buf, ha->vpd_base, count); - ha->isp_ops->read_nvram(ha, (uint8_t *)ha->vpd, ha->vpd_base, count); + ha->isp_ops->write_nvram(vha, (uint8_t *)buf, ha->vpd_base, count); + ha->isp_ops->read_nvram(vha, (uint8_t *)ha->vpd, ha->vpd_base, count); return count; } @@ -399,8 +409,9 @@ qla2x00_sysfs_read_sfp(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { - struct scsi_qla_host *ha = shost_priv(dev_to_shost(container_of(kobj, + struct scsi_qla_host *vha = shost_priv(dev_to_shost(container_of(kobj, struct device, kobj))); + struct qla_hw_data *ha = vha->hw; uint16_t iter, addr, offset; int rval; @@ -429,7 +440,7 @@ do_read: offset = 0; } - rval = qla2x00_read_sfp(ha, ha->sfp_data_dma, addr, offset, + rval = qla2x00_read_sfp(vha, ha->sfp_data_dma, addr, offset, SFP_BLOCK_SIZE); if (rval != QLA_SUCCESS) { qla_printk(KERN_WARNING, ha, @@ -469,30 +480,31 @@ static struct sysfs_entry { }; void -qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha) +qla2x00_alloc_sysfs_attr(scsi_qla_host_t *vha) { - struct Scsi_Host *host = ha->host; + struct Scsi_Host *host = vha->host; struct sysfs_entry *iter; int ret; for (iter = bin_file_entries; iter->name; iter++) { - if (iter->is4GBp_only && !IS_FWI2_CAPABLE(ha)) + if (iter->is4GBp_only && !IS_FWI2_CAPABLE(vha->hw)) continue; ret = sysfs_create_bin_file(&host->shost_gendev.kobj, iter->attr); if (ret) - qla_printk(KERN_INFO, ha, + qla_printk(KERN_INFO, vha->hw, "Unable to create sysfs %s binary attribute " "(%d).\n", iter->name, ret); } } void -qla2x00_free_sysfs_attr(scsi_qla_host_t *ha) +qla2x00_free_sysfs_attr(scsi_qla_host_t *vha) { - struct Scsi_Host *host = ha->host; + struct Scsi_Host *host = vha->host; struct sysfs_entry *iter; + struct qla_hw_data *ha = vha->hw; for (iter = bin_file_entries; iter->name; iter++) { if (iter->is4GBp_only && !IS_FWI2_CAPABLE(ha)) @@ -503,7 +515,7 @@ qla2x00_free_sysfs_attr(scsi_qla_host_t *ha) } if (ha->beacon_blink_led == 1) - ha->isp_ops->beacon_off(ha); + ha->isp_ops->beacon_off(vha); } /* Scsi_Host attributes. */ @@ -519,22 +531,24 @@ static ssize_t qla2x00_fw_version_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); - char fw_str[30]; + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; + char fw_str[128]; return snprintf(buf, PAGE_SIZE, "%s\n", - ha->isp_ops->fw_version_str(ha, fw_str)); + ha->isp_ops->fw_version_str(vha, fw_str)); } static ssize_t qla2x00_serial_num_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; uint32_t sn; if (IS_FWI2_CAPABLE(ha)) { - qla2xxx_get_vpd_field(ha, "SN", buf, PAGE_SIZE); + qla2xxx_get_vpd_field(vha, "SN", buf, PAGE_SIZE); return snprintf(buf, PAGE_SIZE, "%s\n", buf); } @@ -547,15 +561,16 @@ static ssize_t qla2x00_isp_name_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); - return snprintf(buf, PAGE_SIZE, "ISP%04X\n", ha->pdev->device); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + return snprintf(buf, PAGE_SIZE, "ISP%04X\n", vha->hw->pdev->device); } static ssize_t qla2x00_isp_id_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; return snprintf(buf, PAGE_SIZE, "%04x %04x %04x %04x\n", ha->product_id[0], ha->product_id[1], ha->product_id[2], ha->product_id[3]); @@ -565,43 +580,44 @@ static ssize_t qla2x00_model_name_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); - return snprintf(buf, PAGE_SIZE, "%s\n", ha->model_number); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + return snprintf(buf, PAGE_SIZE, "%s\n", vha->hw->model_number); } static ssize_t qla2x00_model_desc_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); return snprintf(buf, PAGE_SIZE, "%s\n", - ha->model_desc ? ha->model_desc: ""); + vha->hw->model_desc ? vha->hw->model_desc : ""); } static ssize_t qla2x00_pci_info_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); char pci_info[30]; return snprintf(buf, PAGE_SIZE, "%s\n", - ha->isp_ops->pci_info_str(ha, pci_info)); + vha->hw->isp_ops->pci_info_str(vha, pci_info)); } static ssize_t qla2x00_link_state_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; int len = 0; - if (atomic_read(&ha->loop_state) == LOOP_DOWN || - atomic_read(&ha->loop_state) == LOOP_DEAD) + if (atomic_read(&vha->loop_state) == LOOP_DOWN || + atomic_read(&vha->loop_state) == LOOP_DEAD) len = snprintf(buf, PAGE_SIZE, "Link Down\n"); - else if (atomic_read(&ha->loop_state) != LOOP_READY || - test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) || - test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) + else if (atomic_read(&vha->loop_state) != LOOP_READY || + test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) || + test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) len = snprintf(buf, PAGE_SIZE, "Unknown Link State\n"); else { len = snprintf(buf, PAGE_SIZE, "Link Up - "); @@ -632,10 +648,10 @@ static ssize_t qla2x00_zio_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); int len = 0; - switch (ha->zio_mode) { + switch (vha->hw->zio_mode) { case QLA_ZIO_MODE_6: len += snprintf(buf + len, PAGE_SIZE-len, "Mode 6\n"); break; @@ -650,7 +666,8 @@ static ssize_t qla2x00_zio_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; int val = 0; uint16_t zio_mode; @@ -668,7 +685,7 @@ qla2x00_zio_store(struct device *dev, struct device_attribute *attr, /* Update per-hba values and queue a reset. */ if (zio_mode != QLA_ZIO_DISABLED || ha->zio_mode != QLA_ZIO_DISABLED) { ha->zio_mode = zio_mode; - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); } return strlen(buf); } @@ -677,16 +694,16 @@ static ssize_t qla2x00_zio_timer_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); - return snprintf(buf, PAGE_SIZE, "%d us\n", ha->zio_timer * 100); + return snprintf(buf, PAGE_SIZE, "%d us\n", vha->hw->zio_timer * 100); } static ssize_t qla2x00_zio_timer_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); int val = 0; uint16_t zio_timer; @@ -696,7 +713,7 @@ qla2x00_zio_timer_store(struct device *dev, struct device_attribute *attr, return -ERANGE; zio_timer = (uint16_t)(val / 100); - ha->zio_timer = zio_timer; + vha->hw->zio_timer = zio_timer; return strlen(buf); } @@ -705,10 +722,10 @@ static ssize_t qla2x00_beacon_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); int len = 0; - if (ha->beacon_blink_led) + if (vha->hw->beacon_blink_led) len += snprintf(buf + len, PAGE_SIZE-len, "Enabled\n"); else len += snprintf(buf + len, PAGE_SIZE-len, "Disabled\n"); @@ -719,14 +736,15 @@ static ssize_t qla2x00_beacon_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; int val = 0; int rval; if (IS_QLA2100(ha) || IS_QLA2200(ha)) return -EPERM; - if (test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) { + if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { qla_printk(KERN_WARNING, ha, "Abort ISP active -- ignoring beacon request.\n"); return -EBUSY; @@ -736,9 +754,9 @@ qla2x00_beacon_store(struct device *dev, struct device_attribute *attr, return -EINVAL; if (val) - rval = ha->isp_ops->beacon_on(ha); + rval = ha->isp_ops->beacon_on(vha); else - rval = ha->isp_ops->beacon_off(ha); + rval = ha->isp_ops->beacon_off(vha); if (rval != QLA_SUCCESS) count = 0; @@ -750,8 +768,8 @@ static ssize_t qla2x00_optrom_bios_version_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); - + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; return snprintf(buf, PAGE_SIZE, "%d.%02d\n", ha->bios_revision[1], ha->bios_revision[0]); } @@ -760,8 +778,8 @@ static ssize_t qla2x00_optrom_efi_version_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); - + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; return snprintf(buf, PAGE_SIZE, "%d.%02d\n", ha->efi_revision[1], ha->efi_revision[0]); } @@ -770,8 +788,8 @@ static ssize_t qla2x00_optrom_fcode_version_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); - + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; return snprintf(buf, PAGE_SIZE, "%d.%02d\n", ha->fcode_revision[1], ha->fcode_revision[0]); } @@ -780,8 +798,8 @@ static ssize_t qla2x00_optrom_fw_version_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); - + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; return snprintf(buf, PAGE_SIZE, "%d.%02d.%02d %d\n", ha->fw_revision[0], ha->fw_revision[1], ha->fw_revision[2], ha->fw_revision[3]); @@ -791,8 +809,8 @@ static ssize_t qla2x00_total_isp_aborts_show(struct device *dev, struct device_attribute *attr, char *buf) { - scsi_qla_host_t *ha = shost_priv(class_to_shost(dev)); - + scsi_qla_host_t *vha = shost_priv(class_to_shost(dev)); + struct qla_hw_data *ha = vha->hw; return snprintf(buf, PAGE_SIZE, "%d\n", ha->qla_stats.total_isp_aborts); } @@ -848,16 +866,17 @@ struct device_attribute *qla2x00_host_attrs[] = { static void qla2x00_get_host_port_id(struct Scsi_Host *shost) { - scsi_qla_host_t *ha = shost_priv(shost); + scsi_qla_host_t *vha = shost_priv(shost); - fc_host_port_id(shost) = ha->d_id.b.domain << 16 | - ha->d_id.b.area << 8 | ha->d_id.b.al_pa; + fc_host_port_id(shost) = vha->d_id.b.domain << 16 | + vha->d_id.b.area << 8 | vha->d_id.b.al_pa; } static void qla2x00_get_host_speed(struct Scsi_Host *shost) { - scsi_qla_host_t *ha = to_qla_parent(shost_priv(shost)); + struct qla_hw_data *ha = ((struct scsi_qla_host *) + (shost_priv(shost)))->hw; u32 speed = FC_PORTSPEED_UNKNOWN; switch (ha->link_data_rate) { @@ -880,14 +899,14 @@ qla2x00_get_host_speed(struct Scsi_Host *shost) static void qla2x00_get_host_port_type(struct Scsi_Host *shost) { - scsi_qla_host_t *ha = shost_priv(shost); + scsi_qla_host_t *vha = shost_priv(shost); uint32_t port_type = FC_PORTTYPE_UNKNOWN; - if (ha->parent) { + if (vha->vp_idx) { fc_host_port_type(shost) = FC_PORTTYPE_NPIV; return; } - switch (ha->current_topology) { + switch (vha->hw->current_topology) { case ISP_CFG_NL: port_type = FC_PORTTYPE_LPORT; break; @@ -908,11 +927,11 @@ static void qla2x00_get_starget_node_name(struct scsi_target *starget) { struct Scsi_Host *host = dev_to_shost(starget->dev.parent); - scsi_qla_host_t *ha = shost_priv(host); + scsi_qla_host_t *vha = shost_priv(host); fc_port_t *fcport; u64 node_name = 0; - list_for_each_entry(fcport, &ha->fcports, list) { + list_for_each_entry(fcport, &vha->vp_fcports, list) { if (fcport->rport && starget->id == fcport->rport->scsi_target_id) { node_name = wwn_to_u64(fcport->node_name); @@ -927,11 +946,11 @@ static void qla2x00_get_starget_port_name(struct scsi_target *starget) { struct Scsi_Host *host = dev_to_shost(starget->dev.parent); - scsi_qla_host_t *ha = shost_priv(host); + scsi_qla_host_t *vha = shost_priv(host); fc_port_t *fcport; u64 port_name = 0; - list_for_each_entry(fcport, &ha->fcports, list) { + list_for_each_entry(fcport, &vha->vp_fcports, list) { if (fcport->rport && starget->id == fcport->rport->scsi_target_id) { port_name = wwn_to_u64(fcport->port_name); @@ -946,11 +965,11 @@ static void qla2x00_get_starget_port_id(struct scsi_target *starget) { struct Scsi_Host *host = dev_to_shost(starget->dev.parent); - scsi_qla_host_t *ha = shost_priv(host); + scsi_qla_host_t *vha = shost_priv(host); fc_port_t *fcport; uint32_t port_id = ~0U; - list_for_each_entry(fcport, &ha->fcports, list) { + list_for_each_entry(fcport, &vha->vp_fcports, list) { if (fcport->rport && starget->id == fcport->rport->scsi_target_id) { port_id = fcport->d_id.b.domain << 16 | @@ -999,9 +1018,9 @@ qla2x00_terminate_rport_io(struct fc_rport *rport) * final cleanup of firmware resources (PCBs and XCBs). */ if (fcport->loop_id != FC_NO_LOOP_ID) { - fcport->ha->isp_ops->fabric_logout(fcport->ha, fcport->loop_id, - fcport->d_id.b.domain, fcport->d_id.b.area, - fcport->d_id.b.al_pa); + fcport->vha->hw->isp_ops->fabric_logout(fcport->vha, + fcport->loop_id, fcport->d_id.b.domain, + fcport->d_id.b.area, fcport->d_id.b.al_pa); fcport->loop_id = FC_NO_LOOP_ID; } @@ -1011,16 +1030,18 @@ qla2x00_terminate_rport_io(struct fc_rport *rport) static int qla2x00_issue_lip(struct Scsi_Host *shost) { - scsi_qla_host_t *ha = shost_priv(shost); + scsi_qla_host_t *vha = shost_priv(shost); - qla2x00_loop_reset(ha); + qla2x00_loop_reset(vha); return 0; } static struct fc_host_statistics * qla2x00_get_fc_host_stats(struct Scsi_Host *shost) { - scsi_qla_host_t *ha = to_qla_parent(shost_priv(shost)); + scsi_qla_host_t *vha = shost_priv(shost); + struct qla_hw_data *ha = vha->hw; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); int rval; struct link_statistics *stats; dma_addr_t stats_dma; @@ -1032,21 +1053,21 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost) stats = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &stats_dma); if (stats == NULL) { DEBUG2_3_11(printk("%s(%ld): Failed to allocate memory.\n", - __func__, ha->host_no)); + __func__, base_vha->host_no)); goto done; } memset(stats, 0, DMA_POOL_SIZE); rval = QLA_FUNCTION_FAILED; if (IS_FWI2_CAPABLE(ha)) { - rval = qla24xx_get_isp_stats(ha, stats, stats_dma); - } else if (atomic_read(&ha->loop_state) == LOOP_READY && - !test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) && - !test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) && + rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma); + } else if (atomic_read(&base_vha->loop_state) == LOOP_READY && + !test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) && + !test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) && !ha->dpc_active) { /* Must be in a 'READY' state for statistics retrieval. */ - rval = qla2x00_get_link_status(ha, ha->loop_id, stats, - stats_dma); + rval = qla2x00_get_link_status(base_vha, base_vha->loop_id, + stats, stats_dma); } if (rval != QLA_SUCCESS) @@ -1077,29 +1098,29 @@ done: static void qla2x00_get_host_symbolic_name(struct Scsi_Host *shost) { - scsi_qla_host_t *ha = shost_priv(shost); + scsi_qla_host_t *vha = shost_priv(shost); - qla2x00_get_sym_node_name(ha, fc_host_symbolic_name(shost)); + qla2x00_get_sym_node_name(vha, fc_host_symbolic_name(shost)); } static void qla2x00_set_host_system_hostname(struct Scsi_Host *shost) { - scsi_qla_host_t *ha = shost_priv(shost); + scsi_qla_host_t *vha = shost_priv(shost); - set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags); + set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); } static void qla2x00_get_host_fabric_name(struct Scsi_Host *shost) { - scsi_qla_host_t *ha = shost_priv(shost); + scsi_qla_host_t *vha = shost_priv(shost); u64 node_name; - if (ha->device_flags & SWITCH_FOUND) - node_name = wwn_to_u64(ha->fabric_node_name); + if (vha->device_flags & SWITCH_FOUND) + node_name = wwn_to_u64(vha->fabric_node_name); else - node_name = wwn_to_u64(ha->node_name); + node_name = wwn_to_u64(vha->node_name); fc_host_fabric_name(shost) = node_name; } @@ -1107,11 +1128,12 @@ qla2x00_get_host_fabric_name(struct Scsi_Host *shost) static void qla2x00_get_host_port_state(struct Scsi_Host *shost) { - scsi_qla_host_t *ha = to_qla_parent(shost_priv(shost)); + scsi_qla_host_t *vha = shost_priv(shost); + struct scsi_qla_host *base_vha = pci_get_drvdata(vha->hw->pdev); - if (!ha->flags.online) + if (!base_vha->flags.online) fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; - else if (atomic_read(&ha->loop_state) == LOOP_TIMEOUT) + else if (atomic_read(&base_vha->loop_state) == LOOP_TIMEOUT) fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; else fc_host_port_state(shost) = FC_PORTSTATE_ONLINE; @@ -1121,8 +1143,11 @@ static int qla24xx_vport_create(struct fc_vport *fc_vport, bool disable) { int ret = 0; - scsi_qla_host_t *ha = shost_priv(fc_vport->shost); - scsi_qla_host_t *vha; + int cnt = 0; + uint8_t qos = QLA_DEFAULT_QUE_QOS; + scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost); + scsi_qla_host_t *vha = NULL; + struct qla_hw_data *ha = base_vha->hw; ret = qla24xx_vport_create_req_sanity_check(fc_vport); if (ret) { @@ -1144,18 +1169,19 @@ qla24xx_vport_create(struct fc_vport *fc_vport, bool disable) atomic_set(&vha->vp_state, VP_FAILED); /* ready to create vport */ - qla_printk(KERN_INFO, vha, "VP entry id %d assigned.\n", vha->vp_idx); + qla_printk(KERN_INFO, vha->hw, "VP entry id %d assigned.\n", + vha->vp_idx); /* initialized vport states */ atomic_set(&vha->loop_state, LOOP_DOWN); vha->vp_err_state= VP_ERR_PORTDWN; vha->vp_prev_err_state= VP_ERR_UNKWN; /* Check if physical ha port is Up */ - if (atomic_read(&ha->loop_state) == LOOP_DOWN || - atomic_read(&ha->loop_state) == LOOP_DEAD) { + if (atomic_read(&base_vha->loop_state) == LOOP_DOWN || + atomic_read(&base_vha->loop_state) == LOOP_DEAD) { /* Don't retry or attempt login of this virtual port */ DEBUG15(printk ("scsi(%ld): pport loop_state is not UP.\n", - vha->host_no)); + base_vha->host_no)); atomic_set(&vha->loop_state, LOOP_DEAD); if (!disable) fc_vport_set_state(fc_vport, FC_VPORT_LINKDOWN); @@ -1171,18 +1197,32 @@ qla24xx_vport_create(struct fc_vport *fc_vport, bool disable) fc_host_node_name(vha->host) = wwn_to_u64(vha->node_name); fc_host_port_name(vha->host) = wwn_to_u64(vha->port_name); fc_host_supported_classes(vha->host) = - fc_host_supported_classes(ha->host); + fc_host_supported_classes(base_vha->host); fc_host_supported_speeds(vha->host) = - fc_host_supported_speeds(ha->host); + fc_host_supported_speeds(base_vha->host); qla24xx_vport_disable(fc_vport, disable); + /* Create a queue pair for the vport */ + if (ha->mqenable) { + if (ha->npiv_info) { + for (; cnt < ha->nvram_npiv_size; cnt++) { + if (ha->npiv_info[cnt].port_name == + vha->port_name && + ha->npiv_info[cnt].node_name == + vha->node_name) { + qos = ha->npiv_info[cnt].q_qos; + break; + } + } + } + qla25xx_create_queues(vha, qos); + } + return 0; vport_create_failed_2: qla24xx_disable_vp(vha); qla24xx_deallocate_vp_id(vha); - kfree(vha->port_name); - kfree(vha->node_name); scsi_host_put(vha->host); return FC_VPORT_FAILED; } @@ -1191,17 +1231,34 @@ static int qla24xx_vport_delete(struct fc_vport *fc_vport) { scsi_qla_host_t *vha = fc_vport->dd_data; - scsi_qla_host_t *pha = to_qla_parent(vha); + fc_port_t *fcport, *tfcport; + struct qla_hw_data *ha = vha->hw; + uint16_t id = vha->vp_idx; while (test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags) || - test_bit(FCPORT_UPDATE_NEEDED, &pha->dpc_flags)) + test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) msleep(1000); + if (ha->mqenable) { + if (qla25xx_delete_queues(vha, 0) != QLA_SUCCESS) + qla_printk(KERN_WARNING, ha, + "Queue delete failed.\n"); + vha->req_ques[0] = ha->req_q_map[0]->id; + } + qla24xx_disable_vp(vha); - qla24xx_deallocate_vp_id(vha); - kfree(vha->node_name); - kfree(vha->port_name); + fc_remove_host(vha->host); + + scsi_remove_host(vha->host); + + list_for_each_entry_safe(fcport, tfcport, &vha->vp_fcports, list) { + list_del(&fcport->list); + kfree(fcport); + fcport = NULL; + } + + qla24xx_deallocate_vp_id(vha); if (vha->timer_active) { qla2x00_vp_stop_timer(vha); @@ -1210,12 +1267,8 @@ qla24xx_vport_delete(struct fc_vport *fc_vport) vha->host_no, vha->vp_idx, vha)); } - fc_remove_host(vha->host); - - scsi_remove_host(vha->host); - scsi_host_put(vha->host); - + qla_printk(KERN_INFO, ha, "vport %d deleted\n", id); return 0; } @@ -1318,15 +1371,16 @@ struct fc_function_template qla2xxx_transport_vport_functions = { }; void -qla2x00_init_host_attr(scsi_qla_host_t *ha) +qla2x00_init_host_attr(scsi_qla_host_t *vha) { + struct qla_hw_data *ha = vha->hw; u32 speed = FC_PORTSPEED_UNKNOWN; - fc_host_node_name(ha->host) = wwn_to_u64(ha->node_name); - fc_host_port_name(ha->host) = wwn_to_u64(ha->port_name); - fc_host_supported_classes(ha->host) = FC_COS_CLASS3; - fc_host_max_npiv_vports(ha->host) = ha->max_npiv_vports;; - fc_host_npiv_vports_inuse(ha->host) = ha->cur_vport_count; + fc_host_node_name(vha->host) = wwn_to_u64(vha->node_name); + fc_host_port_name(vha->host) = wwn_to_u64(vha->port_name); + fc_host_supported_classes(vha->host) = FC_COS_CLASS3; + fc_host_max_npiv_vports(vha->host) = ha->max_npiv_vports; + fc_host_npiv_vports_inuse(vha->host) = ha->cur_vport_count; if (IS_QLA25XX(ha)) speed = FC_PORTSPEED_8GBIT | FC_PORTSPEED_4GBIT | @@ -1338,5 +1392,5 @@ qla2x00_init_host_attr(scsi_qla_host_t *ha) speed = FC_PORTSPEED_2GBIT | FC_PORTSPEED_1GBIT; else speed = FC_PORTSPEED_1GBIT; - fc_host_supported_speeds(ha->host) = speed; + fc_host_supported_speeds(vha->host) = speed; } diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index 510ba64..1cf7777 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -9,7 +9,7 @@ #include <linux/delay.h> static inline void -qla2xxx_prep_dump(scsi_qla_host_t *ha, struct qla2xxx_fw_dump *fw_dump) +qla2xxx_prep_dump(struct qla_hw_data *ha, struct qla2xxx_fw_dump *fw_dump) { fw_dump->fw_major_version = htonl(ha->fw_major_version); fw_dump->fw_minor_version = htonl(ha->fw_minor_version); @@ -23,22 +23,24 @@ qla2xxx_prep_dump(scsi_qla_host_t *ha, struct qla2xxx_fw_dump *fw_dump) } static inline void * -qla2xxx_copy_queues(scsi_qla_host_t *ha, void *ptr) +qla2xxx_copy_queues(struct qla_hw_data *ha, void *ptr) { + struct req_que *req = ha->req_q_map[0]; + struct rsp_que *rsp = ha->rsp_q_map[0]; /* Request queue. */ - memcpy(ptr, ha->request_ring, ha->request_q_length * + memcpy(ptr, req->ring, req->length * sizeof(request_t)); /* Response queue. */ - ptr += ha->request_q_length * sizeof(request_t); - memcpy(ptr, ha->response_ring, ha->response_q_length * + ptr += req->length * sizeof(request_t); + memcpy(ptr, rsp->ring, rsp->length * sizeof(response_t)); - return ptr + (ha->response_q_length * sizeof(response_t)); + return ptr + (rsp->length * sizeof(response_t)); } static int -qla24xx_dump_ram(scsi_qla_host_t *ha, uint32_t addr, uint32_t *ram, +qla24xx_dump_ram(struct qla_hw_data *ha, uint32_t addr, uint32_t *ram, uint32_t ram_dwords, void **nxt) { int rval; @@ -112,7 +114,7 @@ qla24xx_dump_ram(scsi_qla_host_t *ha, uint32_t addr, uint32_t *ram, } static int -qla24xx_dump_memory(scsi_qla_host_t *ha, uint32_t *code_ram, +qla24xx_dump_memory(struct qla_hw_data *ha, uint32_t *code_ram, uint32_t cram_size, void **nxt) { int rval; @@ -163,7 +165,7 @@ qla24xx_pause_risc(struct device_reg_24xx __iomem *reg) } static int -qla24xx_soft_reset(scsi_qla_host_t *ha) +qla24xx_soft_reset(struct qla_hw_data *ha) { int rval = QLA_SUCCESS; uint32_t cnt; @@ -215,8 +217,8 @@ qla24xx_soft_reset(scsi_qla_host_t *ha) } static int -qla2xxx_dump_ram(scsi_qla_host_t *ha, uint32_t addr, uint16_t *ram, - uint32_t ram_words, void **nxt) +qla2xxx_dump_ram(struct qla_hw_data *ha, uint32_t addr, uint16_t *ram, + uint16_t ram_words, void **nxt) { int rval; uint32_t cnt, stat, timer, words, idx; @@ -314,16 +316,17 @@ qla2xxx_read_window(struct device_reg_2xxx __iomem *reg, uint32_t count, * @hardware_locked: Called with the hardware_lock */ void -qla2300_fw_dump(scsi_qla_host_t *ha, int hardware_locked) +qla2300_fw_dump(scsi_qla_host_t *vha, int hardware_locked) { int rval; uint32_t cnt; - + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; uint16_t __iomem *dmp_reg; unsigned long flags; struct qla2300_fw_dump *fw; void *nxt; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); flags = 0; @@ -468,7 +471,7 @@ qla2300_fw_dump(scsi_qla_host_t *ha, int hardware_locked) } else { qla_printk(KERN_INFO, ha, "Firmware dump saved to temp buffer (%ld/%p).\n", - ha->host_no, ha->fw_dump); + base_vha->host_no, ha->fw_dump); ha->fw_dumped = 1; } @@ -483,16 +486,18 @@ qla2300_fw_dump_failed: * @hardware_locked: Called with the hardware_lock */ void -qla2100_fw_dump(scsi_qla_host_t *ha, int hardware_locked) +qla2100_fw_dump(scsi_qla_host_t *vha, int hardware_locked) { int rval; uint32_t cnt, timer; uint16_t risc_address; uint16_t mb0, mb2; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; uint16_t __iomem *dmp_reg; unsigned long flags; struct qla2100_fw_dump *fw; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); risc_address = 0; mb0 = mb2 = 0; @@ -673,7 +678,7 @@ qla2100_fw_dump(scsi_qla_host_t *ha, int hardware_locked) } else { qla_printk(KERN_INFO, ha, "Firmware dump saved to temp buffer (%ld/%p).\n", - ha->host_no, ha->fw_dump); + base_vha->host_no, ha->fw_dump); ha->fw_dumped = 1; } @@ -683,12 +688,12 @@ qla2100_fw_dump_failed: } void -qla24xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked) +qla24xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) { int rval; uint32_t cnt; uint32_t risc_address; - + struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; uint32_t __iomem *dmp_reg; uint32_t *iter_reg; @@ -697,6 +702,7 @@ qla24xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked) struct qla24xx_fw_dump *fw; uint32_t ext_mem_cnt; void *nxt; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); risc_address = ext_mem_cnt = 0; flags = 0; @@ -919,7 +925,7 @@ qla24xx_fw_dump_failed_0: } else { qla_printk(KERN_INFO, ha, "Firmware dump saved to temp buffer (%ld/%p).\n", - ha->host_no, ha->fw_dump); + base_vha->host_no, ha->fw_dump); ha->fw_dumped = 1; } @@ -929,13 +935,14 @@ qla24xx_fw_dump_failed: } void -qla25xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked) +qla25xx_fw_dump(scsi_qla_host_t *vha, int hardware_locked) { int rval; uint32_t cnt; uint32_t risc_address; - + struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; + struct device_reg_25xxmq __iomem *reg25; uint32_t __iomem *dmp_reg; uint32_t *iter_reg; uint16_t __iomem *mbx_reg; @@ -944,6 +951,11 @@ qla25xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked) uint32_t ext_mem_cnt; void *nxt; struct qla2xxx_fce_chain *fcec; + struct qla2xxx_mq_chain *mq = NULL; + uint32_t qreg_size; + uint8_t req_cnt, rsp_cnt, que_cnt; + uint32_t que_idx; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); risc_address = ext_mem_cnt = 0; flags = 0; @@ -988,6 +1000,29 @@ qla25xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked) fw->pcie_regs[1] = htonl(RD_REG_DWORD(dmp_reg++)); fw->pcie_regs[2] = htonl(RD_REG_DWORD(dmp_reg)); fw->pcie_regs[3] = htonl(RD_REG_DWORD(®->iobase_window)); + + /* Multi queue registers */ + if (ha->mqenable) { + qreg_size = sizeof(struct qla2xxx_mq_chain); + mq = kzalloc(qreg_size, GFP_KERNEL); + if (!mq) + goto qla25xx_fw_dump_failed_0; + req_cnt = find_first_zero_bit(ha->req_qid_map, ha->max_queues); + rsp_cnt = find_first_zero_bit(ha->rsp_qid_map, ha->max_queues); + que_cnt = req_cnt > rsp_cnt ? req_cnt : rsp_cnt; + mq->count = htonl(que_cnt); + mq->chain_size = htonl(qreg_size); + mq->type = __constant_htonl(DUMP_CHAIN_MQ); + for (cnt = 0; cnt < que_cnt; cnt++) { + reg25 = (struct device_reg_25xxmq *) ((void *) + ha->mqiobase + cnt * QLA_QUE_PAGE); + que_idx = cnt * 4; + mq->qregs[que_idx] = htonl(reg25->req_q_in); + mq->qregs[que_idx+1] = htonl(reg25->req_q_out); + mq->qregs[que_idx+2] = htonl(reg25->rsp_q_in); + mq->qregs[que_idx+3] = htonl(reg25->rsp_q_out); + } + } WRT_REG_DWORD(®->iobase_window, 0x00); RD_REG_DWORD(®->iobase_window); @@ -1225,7 +1260,14 @@ qla25xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked) ha->fw_dump->version |= __constant_htonl(DUMP_CHAIN_VARIANT); - fcec = nxt + ntohl(ha->fw_dump->eft_size); + if (ha->mqenable) { + nxt = nxt + ntohl(ha->fw_dump->eft_size); + memcpy(nxt, mq, qreg_size); + kfree(mq); + fcec = nxt + qreg_size; + } else { + fcec = nxt + ntohl(ha->fw_dump->eft_size); + } fcec->type = __constant_htonl(DUMP_CHAIN_FCE | DUMP_CHAIN_LAST); fcec->chain_size = htonl(sizeof(struct qla2xxx_fce_chain) + fce_calc_size(ha->fce_bufs)); @@ -1248,7 +1290,7 @@ qla25xx_fw_dump_failed_0: } else { qla_printk(KERN_INFO, ha, "Firmware dump saved to temp buffer (%ld/%p).\n", - ha->host_no, ha->fw_dump); + base_vha->host_no, ha->fw_dump); ha->fw_dumped = 1; } @@ -1256,15 +1298,15 @@ qla25xx_fw_dump_failed: if (!hardware_locked) spin_unlock_irqrestore(&ha->hardware_lock, flags); } - /****************************************************************************/ /* Driver Debug Functions. */ /****************************************************************************/ void -qla2x00_dump_regs(scsi_qla_host_t *ha) +qla2x00_dump_regs(scsi_qla_host_t *vha) { int i; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; uint16_t __iomem *mbx_reg; @@ -1274,7 +1316,7 @@ qla2x00_dump_regs(scsi_qla_host_t *ha) printk("Mailbox registers:\n"); for (i = 0; i < 6; i++) - printk("scsi(%ld): mbox %d 0x%04x \n", ha->host_no, i, + printk("scsi(%ld): mbox %d 0x%04x \n", vha->host_no, i, RD_REG_WORD(mbx_reg++)); } @@ -1302,3 +1344,5 @@ qla2x00_dump_buffer(uint8_t * b, uint32_t size) if (cnt % 16) printk("\n"); } + + diff --git a/drivers/scsi/qla2xxx/qla_dbg.h b/drivers/scsi/qla2xxx/qla_dbg.h index 2e9c0c0..c1794a7 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.h +++ b/drivers/scsi/qla2xxx/qla_dbg.h @@ -4,6 +4,9 @@ * * See LICENSE.qla2xxx for copyright and licensing details. */ + +#include "qla_def.h" + /* * Driver debug definitions. */ @@ -23,6 +26,7 @@ /* #define QL_DEBUG_LEVEL_14 */ /* Output RSCN trace msgs */ /* #define QL_DEBUG_LEVEL_15 */ /* Output NPIV trace msgs */ /* #define QL_DEBUG_LEVEL_16 */ /* Output ISP84XX trace msgs */ +/* #define QL_DEBUG_LEVEL_17 */ /* Output MULTI-Q trace messages */ /* * Macros use for debugging the driver. @@ -43,6 +47,7 @@ #define DEBUG2_11(x) do { if (ql2xextended_error_logging) { x; } } while (0) #define DEBUG2_13(x) do { if (ql2xextended_error_logging) { x; } } while (0) #define DEBUG2_16(x) do { if (ql2xextended_error_logging) { x; } } while (0) +#define DEBUG2_17(x) do { if (ql2xextended_error_logging) { x; } } while (0) #if defined(QL_DEBUG_LEVEL_3) #define DEBUG3(x) do {x;} while (0) @@ -127,7 +132,6 @@ #else #define DEBUG16(x) do {} while (0) #endif - /* * Firmware Dump structure definition */ @@ -266,8 +270,17 @@ struct qla2xxx_fce_chain { uint32_t eregs[8]; }; +struct qla2xxx_mq_chain { + uint32_t type; + uint32_t chain_size; + + uint32_t count; + uint32_t qregs[4 * QLA_MQ_SIZE]; +}; + #define DUMP_CHAIN_VARIANT 0x80000000 #define DUMP_CHAIN_FCE 0x7FFFFAF0 +#define DUMP_CHAIN_MQ 0x7FFFFAF1 #define DUMP_CHAIN_LAST 0x80000000 struct qla2xxx_fw_dump { diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index b971940..a29c952 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -181,11 +181,14 @@ #define RESPONSE_ENTRY_CNT_2100 64 /* Number of response entries.*/ #define RESPONSE_ENTRY_CNT_2300 512 /* Number of response entries.*/ +struct req_que; + /* * SCSI Request Block */ typedef struct srb { - struct scsi_qla_host *ha; /* HA the SP is queued on */ + struct scsi_qla_host *vha; /* HA the SP is queued on */ + struct req_que *que; struct fc_port *fcport; struct scsi_cmnd *cmd; /* Linux SCSI command pkt */ @@ -369,9 +372,17 @@ struct device_reg_2xxx { } u_end; }; +struct device_reg_25xxmq { + volatile uint32_t req_q_in; + volatile uint32_t req_q_out; + volatile uint32_t rsp_q_in; + volatile uint32_t rsp_q_out; +}; + typedef union { struct device_reg_2xxx isp; struct device_reg_24xx isp24; + struct device_reg_25xxmq isp25mq; } device_reg_t; #define ISP_REQ_Q_IN(ha, reg) \ @@ -1524,7 +1535,7 @@ typedef struct { */ typedef struct fc_port { struct list_head list; - struct scsi_qla_host *ha; + struct scsi_qla_host *vha; uint8_t node_name[WWN_SIZE]; uint8_t port_name[WWN_SIZE]; @@ -1550,7 +1561,6 @@ typedef struct fc_port { unsigned long last_queue_full; unsigned long last_ramp_up; - struct list_head vp_fcport; uint16_t vp_idx; } fc_port_t; @@ -2037,6 +2047,8 @@ typedef struct vport_params { #define VP_RET_CODE_NO_MEM 5 #define VP_RET_CODE_NOT_FOUND 6 +struct qla_hw_data; + /* * ISP operations */ @@ -2055,10 +2067,11 @@ struct isp_operations { char * (*fw_version_str) (struct scsi_qla_host *, char *); irq_handler_t intr_handler; - void (*enable_intrs) (struct scsi_qla_host *); - void (*disable_intrs) (struct scsi_qla_host *); + void (*enable_intrs) (struct qla_hw_data *); + void (*disable_intrs) (struct qla_hw_data *); - int (*abort_command) (struct scsi_qla_host *, srb_t *); + int (*abort_command) (struct scsi_qla_host *, srb_t *, + struct req_que *); int (*target_reset) (struct fc_port *, unsigned int); int (*lun_reset) (struct fc_port *, unsigned int); int (*fabric_login) (struct scsi_qla_host *, uint16_t, uint8_t, @@ -2089,6 +2102,10 @@ struct isp_operations { uint32_t); int (*get_flash_version) (struct scsi_qla_host *, void *); + int (*start_scsi) (srb_t *); + void (*wrt_req_reg) (struct qla_hw_data *, uint16_t, uint16_t); + void (*wrt_rsp_reg) (struct qla_hw_data *, uint16_t, uint16_t); + uint16_t (*rd_req_reg) (struct qla_hw_data *, uint16_t); }; /* MSI-X Support *************************************************************/ @@ -2100,16 +2117,18 @@ struct isp_operations { #define QLA_MSIX_DEFAULT 0x00 #define QLA_MSIX_RSP_Q 0x01 -#define QLA_MSIX_ENTRIES 2 #define QLA_MIDX_DEFAULT 0 #define QLA_MIDX_RSP_Q 1 +#define QLA_PCI_MSIX_CONTROL 0xa2 struct scsi_qla_host; +struct rsp_que; struct qla_msix_entry { int have_irq; - uint32_t msix_vector; - uint16_t msix_entry; + uint32_t vector; + uint16_t entry; + struct rsp_que *rsp; }; #define WATCH_INTERVAL 1 /* number of seconds */ @@ -2160,208 +2179,137 @@ struct qla_statistics { uint64_t output_bytes; }; -/* - * Linux Host Adapter structure - */ -typedef struct scsi_qla_host { - struct list_head list; +/* Multi queue support */ +#define MBC_INITIALIZE_MULTIQ 0x1f +#define QLA_QUE_PAGE 0X1000 +#define QLA_MQ_SIZE 32 +#define QLA_MAX_HOST_QUES 16 +#define QLA_MAX_QUEUES 256 +#define ISP_QUE_REG(ha, id) \ + ((ha->mqenable) ? \ + ((void *)(ha->mqiobase) +\ + (QLA_QUE_PAGE * id)) :\ + ((void *)(ha->iobase))) +#define QLA_REQ_QUE_ID(tag) \ + ((tag < QLA_MAX_QUEUES && tag > 0) ? tag : 0) +#define QLA_DEFAULT_QUE_QOS 5 +#define QLA_PRECONFIG_VPORTS 32 +#define QLA_MAX_VPORTS_QLA24XX 128 +#define QLA_MAX_VPORTS_QLA25XX 256 +/* Response queue data structure */ +struct rsp_que { + dma_addr_t dma; + response_t *ring; + response_t *ring_ptr; + uint16_t ring_index; + uint16_t out_ptr; + uint16_t length; + uint16_t options; + uint16_t rid; + uint16_t id; + uint16_t vp_idx; + struct qla_hw_data *hw; + struct qla_msix_entry *msix; + struct req_que *req; +}; - /* Commonly used flags and state information. */ - struct Scsi_Host *host; - struct pci_dev *pdev; +/* Request queue data structure */ +struct req_que { + dma_addr_t dma; + request_t *ring; + request_t *ring_ptr; + uint16_t ring_index; + uint16_t in_ptr; + uint16_t cnt; + uint16_t length; + uint16_t options; + uint16_t rid; + uint16_t id; + uint16_t qos; + uint16_t vp_idx; + struct rsp_que *rsp; + srb_t *outstanding_cmds[MAX_OUTSTANDING_COMMANDS]; + uint32_t current_outstanding_cmd; + int max_q_depth; +}; - unsigned long host_no; +/* + * Qlogic host adapter specific data structure. +*/ +struct qla_hw_data { + struct pci_dev *pdev; + /* SRB cache. */ +#define SRB_MIN_REQ 128 + mempool_t *srb_mempool; volatile struct { - uint32_t init_done :1; - uint32_t online :1; uint32_t mbox_int :1; uint32_t mbox_busy :1; - uint32_t rscn_queue_overflow :1; - uint32_t reset_active :1; - - uint32_t management_server_logged_in :1; - uint32_t process_response_queue :1; uint32_t disable_risc_code_load :1; uint32_t enable_64bit_addressing :1; uint32_t enable_lip_reset :1; - uint32_t enable_lip_full_login :1; uint32_t enable_target_reset :1; + uint32_t enable_lip_full_login :1; uint32_t enable_led_scheme :1; uint32_t inta_enabled :1; uint32_t msi_enabled :1; uint32_t msix_enabled :1; uint32_t disable_serdes :1; uint32_t gpsc_supported :1; - uint32_t vsan_enabled :1; + uint32_t vsan_enabled :1; uint32_t npiv_supported :1; uint32_t fce_enabled :1; - uint32_t hw_event_marker_found :1; + uint32_t hw_event_marker_found:1; } flags; - atomic_t loop_state; -#define LOOP_TIMEOUT 1 -#define LOOP_DOWN 2 -#define LOOP_UP 3 -#define LOOP_UPDATE 4 -#define LOOP_READY 5 -#define LOOP_DEAD 6 - - unsigned long dpc_flags; -#define RESET_MARKER_NEEDED 0 /* Send marker to ISP. */ -#define RESET_ACTIVE 1 -#define ISP_ABORT_NEEDED 2 /* Initiate ISP abort. */ -#define ABORT_ISP_ACTIVE 3 /* ISP abort in progress. */ -#define LOOP_RESYNC_NEEDED 4 /* Device Resync needed. */ -#define LOOP_RESYNC_ACTIVE 5 -#define LOCAL_LOOP_UPDATE 6 /* Perform a local loop update. */ -#define RSCN_UPDATE 7 /* Perform an RSCN update. */ -#define MAILBOX_RETRY 8 -#define ISP_RESET_NEEDED 9 /* Initiate a ISP reset. */ -#define FAILOVER_EVENT_NEEDED 10 -#define FAILOVER_EVENT 11 -#define FAILOVER_NEEDED 12 -#define SCSI_RESTART_NEEDED 13 /* Processes SCSI retry queue. */ -#define PORT_RESTART_NEEDED 14 /* Processes Retry queue. */ -#define RESTART_QUEUES_NEEDED 15 /* Restarts the Lun queue. */ -#define ABORT_QUEUES_NEEDED 16 -#define RELOGIN_NEEDED 17 -#define LOGIN_RETRY_NEEDED 18 /* Initiate required fabric logins. */ -#define REGISTER_FC4_NEEDED 19 /* SNS FC4 registration required. */ -#define ISP_ABORT_RETRY 20 /* ISP aborted. */ -#define FCPORT_RESCAN_NEEDED 21 /* IO descriptor processing needed */ -#define IODESC_PROCESS_NEEDED 22 /* IO descriptor processing needed */ -#define IOCTL_ERROR_RECOVERY 23 -#define LOOP_RESET_NEEDED 24 -#define BEACON_BLINK_NEEDED 25 -#define REGISTER_FDMI_NEEDED 26 -#define FCPORT_UPDATE_NEEDED 27 -#define VP_DPC_NEEDED 28 /* wake up for VP dpc handling */ -#define UNLOADING 29 -#define NPIV_CONFIG_NEEDED 30 - - uint32_t device_flags; -#define DFLG_LOCAL_DEVICES BIT_0 -#define DFLG_RETRY_LOCAL_DEVICES BIT_1 -#define DFLG_FABRIC_DEVICES BIT_2 -#define SWITCH_FOUND BIT_3 -#define DFLG_NO_CABLE BIT_4 - -#define PCI_DEVICE_ID_QLOGIC_ISP2532 0x2532 -#define PCI_DEVICE_ID_QLOGIC_ISP8432 0x8432 - uint32_t device_type; -#define DT_ISP2100 BIT_0 -#define DT_ISP2200 BIT_1 -#define DT_ISP2300 BIT_2 -#define DT_ISP2312 BIT_3 -#define DT_ISP2322 BIT_4 -#define DT_ISP6312 BIT_5 -#define DT_ISP6322 BIT_6 -#define DT_ISP2422 BIT_7 -#define DT_ISP2432 BIT_8 -#define DT_ISP5422 BIT_9 -#define DT_ISP5432 BIT_10 -#define DT_ISP2532 BIT_11 -#define DT_ISP8432 BIT_12 -#define DT_ISP_LAST (DT_ISP8432 << 1) - -#define DT_IIDMA BIT_26 -#define DT_FWI2 BIT_27 -#define DT_ZIO_SUPPORTED BIT_28 -#define DT_OEM_001 BIT_29 -#define DT_ISP2200A BIT_30 -#define DT_EXTENDED_IDS BIT_31 - -#define DT_MASK(ha) ((ha)->device_type & (DT_ISP_LAST - 1)) -#define IS_QLA2100(ha) (DT_MASK(ha) & DT_ISP2100) -#define IS_QLA2200(ha) (DT_MASK(ha) & DT_ISP2200) -#define IS_QLA2300(ha) (DT_MASK(ha) & DT_ISP2300) -#define IS_QLA2312(ha) (DT_MASK(ha) & DT_ISP2312) -#define IS_QLA2322(ha) (DT_MASK(ha) & DT_ISP2322) -#define IS_QLA6312(ha) (DT_MASK(ha) & DT_ISP6312) -#define IS_QLA6322(ha) (DT_MASK(ha) & DT_ISP6322) -#define IS_QLA2422(ha) (DT_MASK(ha) & DT_ISP2422) -#define IS_QLA2432(ha) (DT_MASK(ha) & DT_ISP2432) -#define IS_QLA5422(ha) (DT_MASK(ha) & DT_ISP5422) -#define IS_QLA5432(ha) (DT_MASK(ha) & DT_ISP5432) -#define IS_QLA2532(ha) (DT_MASK(ha) & DT_ISP2532) -#define IS_QLA8432(ha) (DT_MASK(ha) & DT_ISP8432) - -#define IS_QLA23XX(ha) (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA2322(ha) || \ - IS_QLA6312(ha) || IS_QLA6322(ha)) -#define IS_QLA24XX(ha) (IS_QLA2422(ha) || IS_QLA2432(ha)) -#define IS_QLA54XX(ha) (IS_QLA5422(ha) || IS_QLA5432(ha)) -#define IS_QLA25XX(ha) (IS_QLA2532(ha)) -#define IS_QLA84XX(ha) (IS_QLA8432(ha)) -#define IS_QLA24XX_TYPE(ha) (IS_QLA24XX(ha) || IS_QLA54XX(ha) || \ - IS_QLA84XX(ha)) - -#define IS_IIDMA_CAPABLE(ha) ((ha)->device_type & DT_IIDMA) -#define IS_FWI2_CAPABLE(ha) ((ha)->device_type & DT_FWI2) -#define IS_ZIO_SUPPORTED(ha) ((ha)->device_type & DT_ZIO_SUPPORTED) -#define IS_OEM_001(ha) ((ha)->device_type & DT_OEM_001) -#define HAS_EXTENDED_IDS(ha) ((ha)->device_type & DT_EXTENDED_IDS) - - /* SRB cache. */ -#define SRB_MIN_REQ 128 - mempool_t *srb_mempool; - /* This spinlock is used to protect "io transactions", you must - * acquire it before doing any IO to the card, eg with RD_REG*() and - * WRT_REG*() for the duration of your entire commandtransaction. - * - * This spinlock is of lower priority than the io request lock. - */ - - spinlock_t hardware_lock ____cacheline_aligned; + * acquire it before doing any IO to the card, eg with RD_REG*() and + * WRT_REG*() for the duration of your entire commandtransaction. + * + * This spinlock is of lower priority than the io request lock. + */ + spinlock_t hardware_lock ____cacheline_aligned; int bars; int mem_only; - device_reg_t __iomem *iobase; /* Base I/O address */ + device_reg_t __iomem *iobase; /* Base I/O address */ resource_size_t pio_address; -#define MIN_IOBASE_LEN 0x100 - - /* ISP ring lock, rings, and indexes */ - dma_addr_t request_dma; /* Physical address. */ - request_t *request_ring; /* Base virtual address */ - request_t *request_ring_ptr; /* Current address. */ - uint16_t req_ring_index; /* Current index. */ - uint16_t req_q_cnt; /* Number of available entries. */ - uint16_t request_q_length; - - dma_addr_t response_dma; /* Physical address. */ - response_t *response_ring; /* Base virtual address */ - response_t *response_ring_ptr; /* Current address. */ - uint16_t rsp_ring_index; /* Current index. */ - uint16_t response_q_length; - - struct isp_operations *isp_ops; - /* Outstandings ISP commands. */ - srb_t *outstanding_cmds[MAX_OUTSTANDING_COMMANDS]; - uint32_t current_outstanding_cmd; - srb_t *status_srb; /* Status continuation entry. */ +#define MIN_IOBASE_LEN 0x100 +/* Multi queue data structs */ + device_reg_t *mqiobase; + uint16_t msix_count; + uint8_t mqenable; + struct req_que **req_q_map; + struct rsp_que **rsp_q_map; + unsigned long req_qid_map[(QLA_MAX_QUEUES / 8) / sizeof(unsigned long)]; + unsigned long rsp_qid_map[(QLA_MAX_QUEUES / 8) / sizeof(unsigned long)]; + uint16_t max_queues; + struct qla_npiv_entry *npiv_info; + uint16_t nvram_npiv_size; + + uint16_t switch_cap; +#define FLOGI_SEQ_DEL BIT_8 +#define FLOGI_MID_SUPPORT BIT_10 +#define FLOGI_VSAN_SUPPORT BIT_12 +#define FLOGI_SP_SUPPORT BIT_13 + /* Timeout timers. */ + uint8_t loop_down_abort_time; /* port down timer */ + atomic_t loop_down_timer; /* loop down timer */ + uint8_t link_down_timeout; /* link down timeout */ + uint16_t max_loop_id; - /* ISP configuration data. */ - uint16_t loop_id; /* Host adapter loop id */ - uint16_t switch_cap; -#define FLOGI_SEQ_DEL BIT_8 -#define FLOGI_MID_SUPPORT BIT_10 -#define FLOGI_VSAN_SUPPORT BIT_12 -#define FLOGI_SP_SUPPORT BIT_13 uint16_t fb_rev; - - port_id_t d_id; /* Host adapter port id */ uint16_t max_public_loop_ids; - uint16_t min_external_loopid; /* First external loop Id */ + uint16_t min_external_loopid; /* First external loop Id */ #define PORT_SPEED_UNKNOWN 0xFFFF -#define PORT_SPEED_1GB 0x00 -#define PORT_SPEED_2GB 0x01 -#define PORT_SPEED_4GB 0x03 -#define PORT_SPEED_8GB 0x04 - uint16_t link_data_rate; /* F/W operating speed */ +#define PORT_SPEED_1GB 0x00 +#define PORT_SPEED_2GB 0x01 +#define PORT_SPEED_4GB 0x03 +#define PORT_SPEED_8GB 0x04 + uint16_t link_data_rate; /* F/W operating speed */ uint8_t current_topology; uint8_t prev_topology; @@ -2370,15 +2318,69 @@ typedef struct scsi_qla_host { #define ISP_CFG_FL 4 #define ISP_CFG_F 8 - uint8_t operating_mode; /* F/W operating mode */ + uint8_t operating_mode; /* F/W operating mode */ #define LOOP 0 #define P2P 1 #define LOOP_P2P 2 #define P2P_LOOP 3 - - uint8_t marker_needed; - uint8_t interrupts_on; + uint32_t isp_abort_cnt; + +#define PCI_DEVICE_ID_QLOGIC_ISP2532 0x2532 +#define PCI_DEVICE_ID_QLOGIC_ISP8432 0x8432 + uint32_t device_type; +#define DT_ISP2100 BIT_0 +#define DT_ISP2200 BIT_1 +#define DT_ISP2300 BIT_2 +#define DT_ISP2312 BIT_3 +#define DT_ISP2322 BIT_4 +#define DT_ISP6312 BIT_5 +#define DT_ISP6322 BIT_6 +#define DT_ISP2422 BIT_7 +#define DT_ISP2432 BIT_8 +#define DT_ISP5422 BIT_9 +#define DT_ISP5432 BIT_10 +#define DT_ISP2532 BIT_11 +#define DT_ISP8432 BIT_12 +#define DT_ISP_LAST (DT_ISP8432 << 1) + +#define DT_IIDMA BIT_26 +#define DT_FWI2 BIT_27 +#define DT_ZIO_SUPPORTED BIT_28 +#define DT_OEM_001 BIT_29 +#define DT_ISP2200A BIT_30 +#define DT_EXTENDED_IDS BIT_31 +#define DT_MASK(ha) ((ha)->device_type & (DT_ISP_LAST - 1)) +#define IS_QLA2100(ha) (DT_MASK(ha) & DT_ISP2100) +#define IS_QLA2200(ha) (DT_MASK(ha) & DT_ISP2200) +#define IS_QLA2300(ha) (DT_MASK(ha) & DT_ISP2300) +#define IS_QLA2312(ha) (DT_MASK(ha) & DT_ISP2312) +#define IS_QLA2322(ha) (DT_MASK(ha) & DT_ISP2322) +#define IS_QLA6312(ha) (DT_MASK(ha) & DT_ISP6312) +#define IS_QLA6322(ha) (DT_MASK(ha) & DT_ISP6322) +#define IS_QLA2422(ha) (DT_MASK(ha) & DT_ISP2422) +#define IS_QLA2432(ha) (DT_MASK(ha) & DT_ISP2432) +#define IS_QLA5422(ha) (DT_MASK(ha) & DT_ISP5422) +#define IS_QLA5432(ha) (DT_MASK(ha) & DT_ISP5432) +#define IS_QLA2532(ha) (DT_MASK(ha) & DT_ISP2532) +#define IS_QLA8432(ha) (DT_MASK(ha) & DT_ISP8432) + +#define IS_QLA23XX(ha) (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA2322(ha) || \ + IS_QLA6312(ha) || IS_QLA6322(ha)) +#define IS_QLA24XX(ha) (IS_QLA2422(ha) || IS_QLA2432(ha)) +#define IS_QLA54XX(ha) (IS_QLA5422(ha) || IS_QLA5432(ha)) +#define IS_QLA25XX(ha) (IS_QLA2532(ha)) +#define IS_QLA84XX(ha) (IS_QLA8432(ha)) +#define IS_QLA24XX_TYPE(ha) (IS_QLA24XX(ha) || IS_QLA54XX(ha) || \ + IS_QLA84XX(ha)) +#define IS_QLA2XXX_MIDTYPE(ha) (IS_QLA24XX(ha) || IS_QLA84XX(ha) || \ + IS_QLA25XX(ha)) + +#define IS_IIDMA_CAPABLE(ha) ((ha)->device_type & DT_IIDMA) +#define IS_FWI2_CAPABLE(ha) ((ha)->device_type & DT_FWI2) +#define IS_ZIO_SUPPORTED(ha) ((ha)->device_type & DT_ZIO_SUPPORTED) +#define IS_OEM_001(ha) ((ha)->device_type & DT_OEM_001) +#define HAS_EXTENDED_IDS(ha) ((ha)->device_type & DT_EXTENDED_IDS) /* HBA serial number */ uint8_t serial0; @@ -2386,8 +2388,8 @@ typedef struct scsi_qla_host { uint8_t serial2; /* NVRAM configuration data */ -#define MAX_NVRAM_SIZE 4096 -#define VPD_OFFSET MAX_NVRAM_SIZE / 2 +#define MAX_NVRAM_SIZE 4096 +#define VPD_OFFSET MAX_NVRAM_SIZE / 2 uint16_t nvram_size; uint16_t nvram_base; void *nvram; @@ -2401,22 +2403,8 @@ typedef struct scsi_qla_host { uint16_t r_a_tov; int port_down_retry_count; uint8_t mbx_count; - uint16_t last_loop_id; - uint16_t mgmt_svr_loop_id; - - uint32_t login_retry_count; - int max_q_depth; - - struct list_head work_list; - - /* Fibre Channel Device List. */ - struct list_head fcports; - - /* RSCN queue. */ - uint32_t rscn_queue[MAX_RSCN_COUNT]; - uint8_t rscn_in_ptr; - uint8_t rscn_out_ptr; + uint32_t login_retry_count; /* SNS command interfaces. */ ms_iocb_entry_t *ms_iocb; dma_addr_t ms_iocb_dma; @@ -2426,28 +2414,20 @@ typedef struct scsi_qla_host { struct sns_cmd_pkt *sns_cmd; dma_addr_t sns_cmd_dma; -#define SFP_DEV_SIZE 256 -#define SFP_BLOCK_SIZE 64 - void *sfp_data; - dma_addr_t sfp_data_dma; +#define SFP_DEV_SIZE 256 +#define SFP_BLOCK_SIZE 64 + void *sfp_data; + dma_addr_t sfp_data_dma; struct task_struct *dpc_thread; uint8_t dpc_active; /* DPC routine is active */ - /* Timeout timers. */ - uint8_t loop_down_abort_time; /* port down timer */ - atomic_t loop_down_timer; /* loop down timer */ - uint8_t link_down_timeout; /* link down timeout */ - - uint32_t timer_active; - struct timer_list timer; - dma_addr_t gid_list_dma; struct gid_list_info *gid_list; int gid_list_info_size; /* Small DMA pool allocations -- maximum 256 bytes in length. */ -#define DMA_POOL_SIZE 256 +#define DMA_POOL_SIZE 256 struct dma_pool *s_dma_pool; dma_addr_t init_cb_dma; @@ -2459,17 +2439,17 @@ typedef struct scsi_qla_host { mbx_cmd_t *mcp; unsigned long mbx_cmd_flags; -#define MBX_INTERRUPT 1 -#define MBX_INTR_WAIT 2 +#define MBX_INTERRUPT 1 +#define MBX_INTR_WAIT 2 #define MBX_UPDATE_FLASH_ACTIVE 3 - struct mutex vport_lock; /* Virtual port synchronization */ - struct completion mbx_cmd_comp; /* Serialize mbx access */ + struct mutex vport_lock; /* Virtual port synchronization */ + struct completion mbx_cmd_comp; /* Serialize mbx access */ struct completion mbx_intr_comp; /* Used for completion notification */ uint32_t mbx_flags; #define MBX_IN_PROGRESS BIT_0 -#define MBX_BUSY BIT_1 /* Got the Access */ +#define MBX_BUSY BIT_1 /* Got the Access */ #define MBX_SLEEPING_ON_SEM BIT_2 #define MBX_POLLING_FOR_COMP BIT_3 #define MBX_COMPLETED BIT_4 @@ -2488,7 +2468,7 @@ typedef struct scsi_qla_host { #define RISC_START_ADDRESS_2300 0x800 #define RISC_START_ADDRESS_2400 0x100000 - uint16_t fw_options[16]; /* slots: 1,2,3,10,11 */ + uint16_t fw_options[16]; /* slots: 1,2,3,10,11 */ uint8_t fw_seriallink_options[4]; uint16_t fw_seriallink_options24[4]; @@ -2509,10 +2489,10 @@ typedef struct scsi_qla_host { uint64_t fce_wr, fce_rd; struct mutex fce_mutex; + uint32_t hw_event_start; uint32_t hw_event_ptr; uint32_t hw_event_pause_errors; - uint8_t host_str[16]; uint32_t pci_attr; uint16_t chip_revision; @@ -2523,11 +2503,6 @@ typedef struct scsi_qla_host { char model_desc[80]; uint8_t adapter_id[16+1]; - uint8_t *node_name; - uint8_t *port_name; - uint8_t fabric_node_name[WWN_SIZE]; - uint32_t isp_abort_cnt; - /* Option ROM information. */ char *optrom_buffer; uint32_t optrom_size; @@ -2538,13 +2513,13 @@ typedef struct scsi_qla_host { uint32_t optrom_region_start; uint32_t optrom_region_size; - /* PCI expansion ROM image information. */ +/* PCI expansion ROM image information. */ #define ROM_CODE_TYPE_BIOS 0 #define ROM_CODE_TYPE_FCODE 1 #define ROM_CODE_TYPE_EFI 3 - uint8_t bios_revision[2]; - uint8_t efi_revision[2]; - uint8_t fcode_revision[16]; + uint8_t bios_revision[2]; + uint8_t efi_revision[2]; + uint8_t fcode_revision[16]; uint32_t fw_revision[4]; uint32_t fdt_wrt_disable; @@ -2553,39 +2528,144 @@ typedef struct scsi_qla_host { uint32_t fdt_unprotect_sec_cmd; uint32_t fdt_protect_sec_cmd; - uint32_t flt_region_flt; - uint32_t flt_region_fdt; - uint32_t flt_region_boot; - uint32_t flt_region_fw; - uint32_t flt_region_vpd_nvram; - uint32_t flt_region_hw_event; - uint32_t flt_region_npiv_conf; + uint32_t flt_region_flt; + uint32_t flt_region_fdt; + uint32_t flt_region_boot; + uint32_t flt_region_fw; + uint32_t flt_region_vpd_nvram; + uint32_t flt_region_hw_event; + uint32_t flt_region_npiv_conf; /* Needed for BEACON */ - uint16_t beacon_blink_led; - uint8_t beacon_color_state; + uint16_t beacon_blink_led; + uint8_t beacon_color_state; #define QLA_LED_GRN_ON 0x01 #define QLA_LED_YLW_ON 0x02 #define QLA_LED_ABR_ON 0x04 #define QLA_LED_ALL_ON 0x07 /* yellow, green, amber. */ /* ISP2322: red, green, amber. */ - - uint16_t zio_mode; - uint16_t zio_timer; + uint16_t zio_mode; + uint16_t zio_timer; struct fc_host_statistics fc_host_stat; - struct qla_msix_entry msix_entries[QLA_MSIX_ENTRIES]; + struct qla_msix_entry *msix_entries; + + struct list_head vp_list; /* list of VP */ + unsigned long vp_idx_map[(MAX_MULTI_ID_FABRIC / 8) / + sizeof(unsigned long)]; + uint16_t num_vhosts; /* number of vports created */ + uint16_t num_vsans; /* number of vsan created */ + uint16_t max_npiv_vports; /* 63 or 125 per topoloty */ + int cur_vport_count; + + struct qla_chip_state_84xx *cs84xx; + struct qla_statistics qla_stats; + struct isp_operations *isp_ops; +}; + +/* + * Qlogic scsi host structure + */ +typedef struct scsi_qla_host { + struct list_head list; + struct list_head vp_fcports; /* list of fcports */ + struct list_head work_list; + /* Commonly used flags and state information. */ + struct Scsi_Host *host; + unsigned long host_no; + uint8_t host_str[16]; + + volatile struct { + uint32_t init_done :1; + uint32_t online :1; + uint32_t rscn_queue_overflow :1; + uint32_t reset_active :1; + + uint32_t management_server_logged_in :1; + uint32_t process_response_queue :1; + } flags; + + atomic_t loop_state; +#define LOOP_TIMEOUT 1 +#define LOOP_DOWN 2 +#define LOOP_UP 3 +#define LOOP_UPDATE 4 +#define LOOP_READY 5 +#define LOOP_DEAD 6 + + unsigned long dpc_flags; +#define RESET_MARKER_NEEDED 0 /* Send marker to ISP. */ +#define RESET_ACTIVE 1 +#define ISP_ABORT_NEEDED 2 /* Initiate ISP abort. */ +#define ABORT_ISP_ACTIVE 3 /* ISP abort in progress. */ +#define LOOP_RESYNC_NEEDED 4 /* Device Resync needed. */ +#define LOOP_RESYNC_ACTIVE 5 +#define LOCAL_LOOP_UPDATE 6 /* Perform a local loop update. */ +#define RSCN_UPDATE 7 /* Perform an RSCN update. */ +#define MAILBOX_RETRY 8 +#define ISP_RESET_NEEDED 9 /* Initiate a ISP reset. */ +#define FAILOVER_EVENT_NEEDED 10 +#define FAILOVER_EVENT 11 +#define FAILOVER_NEEDED 12 +#define SCSI_RESTART_NEEDED 13 /* Processes SCSI retry queue. */ +#define PORT_RESTART_NEEDED 14 /* Processes Retry queue. */ +#define RESTART_QUEUES_NEEDED 15 /* Restarts the Lun queue. */ +#define ABORT_QUEUES_NEEDED 16 +#define RELOGIN_NEEDED 17 +#define LOGIN_RETRY_NEEDED 18 /* Initiate required fabric logins. */ +#define REGISTER_FC4_NEEDED 19 /* SNS FC4 registration required. */ +#define ISP_ABORT_RETRY 20 /* ISP aborted. */ +#define FCPORT_RESCAN_NEEDED 21 /* IO descriptor processing needed */ +#define IODESC_PROCESS_NEEDED 22 /* IO descriptor processing needed */ +#define IOCTL_ERROR_RECOVERY 23 +#define LOOP_RESET_NEEDED 24 +#define BEACON_BLINK_NEEDED 25 +#define REGISTER_FDMI_NEEDED 26 +#define FCPORT_UPDATE_NEEDED 27 +#define VP_DPC_NEEDED 28 /* wake up for VP dpc handling */ +#define UNLOADING 29 +#define NPIV_CONFIG_NEEDED 30 + + uint32_t device_flags; +#define DFLG_LOCAL_DEVICES BIT_0 +#define DFLG_RETRY_LOCAL_DEVICES BIT_1 +#define DFLG_FABRIC_DEVICES BIT_2 +#define SWITCH_FOUND BIT_3 +#define DFLG_NO_CABLE BIT_4 + + srb_t *status_srb; /* Status continuation entry. */ + + /* ISP configuration data. */ + uint16_t loop_id; /* Host adapter loop id */ + + port_id_t d_id; /* Host adapter port id */ + uint8_t marker_needed; + uint16_t mgmt_svr_loop_id; + + + + /* RSCN queue. */ + uint32_t rscn_queue[MAX_RSCN_COUNT]; + uint8_t rscn_in_ptr; + uint8_t rscn_out_ptr; + + /* Timeout timers. */ + uint8_t loop_down_abort_time; /* port down timer */ + atomic_t loop_down_timer; /* loop down timer */ + uint8_t link_down_timeout; /* link down timeout */ + + uint32_t timer_active; + struct timer_list timer; + + uint8_t node_name[WWN_SIZE]; + uint8_t port_name[WWN_SIZE]; + uint8_t fabric_node_name[WWN_SIZE]; + uint32_t vp_abort_cnt; - struct list_head vp_list; /* list of VP */ struct fc_vport *fc_vport; /* holds fc_vport * for each vport */ - unsigned long vp_idx_map[(MAX_MULTI_ID_FABRIC / 8) / sizeof(unsigned long)]; - uint16_t num_vhosts; /* number of vports created */ - uint16_t num_vsans; /* number of vsan created */ uint16_t vp_idx; /* vport ID */ - struct scsi_qla_host *parent; /* holds pport */ unsigned long vp_flags; - struct list_head vp_fcports; /* list of fcports */ #define VP_IDX_ACQUIRED 0 /* bit no 0 */ #define VP_CREATE_NEEDED 1 #define VP_BIND_NEEDED 2 @@ -2604,14 +2684,10 @@ typedef struct scsi_qla_host { #define VP_ERR_FAB_NORESOURCES 3 #define VP_ERR_FAB_LOGOUT 4 #define VP_ERR_ADAP_NORESOURCES 5 - uint16_t max_npiv_vports; /* 63 or 125 per topoloty */ - int cur_vport_count; - - struct qla_chip_state_84xx *cs84xx; - struct qla_statistics qla_stats; + struct qla_hw_data *hw; + int req_ques[QLA_MAX_HOST_QUES]; } scsi_qla_host_t; - /* * Macros to help code, maintain, etc. */ diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index 561a441..0e366a1 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -15,10 +15,11 @@ static atomic_t qla2x00_dfs_root_count; static int qla2x00_dfs_fce_show(struct seq_file *s, void *unused) { - scsi_qla_host_t *ha = s->private; + scsi_qla_host_t *vha = s->private; uint32_t cnt; uint32_t *fce; uint64_t fce_start; + struct qla_hw_data *ha = vha->hw; mutex_lock(&ha->fce_mutex); @@ -51,7 +52,8 @@ qla2x00_dfs_fce_show(struct seq_file *s, void *unused) static int qla2x00_dfs_fce_open(struct inode *inode, struct file *file) { - scsi_qla_host_t *ha = inode->i_private; + scsi_qla_host_t *vha = inode->i_private; + struct qla_hw_data *ha = vha->hw; int rval; if (!ha->flags.fce_enabled) @@ -60,7 +62,7 @@ qla2x00_dfs_fce_open(struct inode *inode, struct file *file) mutex_lock(&ha->fce_mutex); /* Pause tracing to flush FCE buffers. */ - rval = qla2x00_disable_fce_trace(ha, &ha->fce_wr, &ha->fce_rd); + rval = qla2x00_disable_fce_trace(vha, &ha->fce_wr, &ha->fce_rd); if (rval) qla_printk(KERN_WARNING, ha, "DebugFS: Unable to disable FCE (%d).\n", rval); @@ -75,7 +77,8 @@ out: static int qla2x00_dfs_fce_release(struct inode *inode, struct file *file) { - scsi_qla_host_t *ha = inode->i_private; + scsi_qla_host_t *vha = inode->i_private; + struct qla_hw_data *ha = vha->hw; int rval; if (ha->flags.fce_enabled) @@ -86,7 +89,7 @@ qla2x00_dfs_fce_release(struct inode *inode, struct file *file) /* Re-enable FCE tracing. */ ha->flags.fce_enabled = 1; memset(ha->fce, 0, fce_calc_size(ha->fce_bufs)); - rval = qla2x00_enable_fce_trace(ha, ha->fce_dma, ha->fce_bufs, + rval = qla2x00_enable_fce_trace(vha, ha->fce_dma, ha->fce_bufs, ha->fce_mb, &ha->fce_bufs); if (rval) { qla_printk(KERN_WARNING, ha, @@ -107,8 +110,9 @@ static const struct file_operations dfs_fce_ops = { }; int -qla2x00_dfs_setup(scsi_qla_host_t *ha) +qla2x00_dfs_setup(scsi_qla_host_t *vha) { + struct qla_hw_data *ha = vha->hw; if (!IS_QLA25XX(ha)) goto out; if (!ha->fce) @@ -130,7 +134,7 @@ create_dir: goto create_nodes; mutex_init(&ha->fce_mutex); - ha->dfs_dir = debugfs_create_dir(ha->host_str, qla2x00_dfs_root); + ha->dfs_dir = debugfs_create_dir(vha->host_str, qla2x00_dfs_root); if (!ha->dfs_dir) { qla_printk(KERN_NOTICE, ha, "DebugFS: Unable to create ha directory.\n"); @@ -152,8 +156,9 @@ out: } int -qla2x00_dfs_remove(scsi_qla_host_t *ha) +qla2x00_dfs_remove(scsi_qla_host_t *vha) { + struct qla_hw_data *ha = vha->hw; if (ha->dfs_fce) { debugfs_remove(ha->dfs_fce); ha->dfs_fce = NULL; diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h index d1d1420..ee1f1e7 100644 --- a/drivers/scsi/qla2xxx/qla_fw.h +++ b/drivers/scsi/qla2xxx/qla_fw.h @@ -299,7 +299,8 @@ struct init_cb_24xx { uint32_t response_q_address[2]; uint32_t prio_request_q_address[2]; - uint8_t reserved_2[8]; + uint16_t msix; + uint8_t reserved_2[6]; uint16_t atio_q_inpointer; uint16_t atio_q_length; @@ -372,8 +373,9 @@ struct init_cb_24xx { * BIT 17-31 = Reserved */ uint32_t firmware_options_3; - - uint8_t reserved_3[24]; + uint16_t qos; + uint16_t rid; + uint8_t reserved_3[20]; }; /* @@ -754,7 +756,8 @@ struct abort_entry_24xx { uint32_t handle_to_abort; /* System handle to abort. */ - uint8_t reserved_1[32]; + uint16_t req_que_no; + uint8_t reserved_1[30]; uint8_t port_id[3]; /* PortID of destination port. */ uint8_t vp_index; @@ -1258,7 +1261,8 @@ struct qla_npiv_header { struct qla_npiv_entry { uint16_t flags; uint16_t vf_id; - uint16_t qos; + uint8_t q_qos; + uint8_t f_qos; uint16_t unused1; uint8_t port_name[WWN_SIZE]; uint8_t node_name[WWN_SIZE]; diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 753dbe6..0011e31 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -63,6 +63,7 @@ extern int ql2xallocfwdump; extern int ql2xextended_error_logging; extern int ql2xqfullrampup; extern int ql2xiidmaenable; +extern int ql2xmaxqueues; extern int qla2x00_loop_reset(scsi_qla_host_t *); extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int); @@ -72,7 +73,10 @@ extern int qla2x00_post_hwe_work(struct scsi_qla_host *, uint16_t , uint16_t, uint16_t, uint16_t); extern void qla2x00_abort_fcport_cmds(fc_port_t *); - +extern struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *, + struct qla_hw_data *); +extern void qla2x00_free_host(struct scsi_qla_host *); +extern void qla2x00_relogin(struct scsi_qla_host *); /* * Global Functions in qla_mid.c source file. */ @@ -94,7 +98,7 @@ extern void qla2x00_do_dpc_all_vps(scsi_qla_host_t *); extern int qla24xx_vport_create_req_sanity_check(struct fc_vport *); extern scsi_qla_host_t * qla24xx_create_vhost(struct fc_vport *); -extern void qla2x00_sp_compl(scsi_qla_host_t *, srb_t *); +extern void qla2x00_sp_compl(struct qla_hw_data *, srb_t *); extern char *qla2x00_get_fw_version_str(struct scsi_qla_host *, char *); @@ -105,10 +109,11 @@ extern struct fw_blob *qla2x00_request_firmware(scsi_qla_host_t *); extern int qla2x00_wait_for_hba_online(scsi_qla_host_t *); -extern void qla2xxx_wake_dpc(scsi_qla_host_t *); -extern void qla2x00_alert_all_vps(scsi_qla_host_t *, uint16_t *); -extern void qla2x00_async_event(scsi_qla_host_t *, uint16_t *); -extern void qla2x00_vp_abort_isp(scsi_qla_host_t *); +extern void qla2xxx_wake_dpc(struct scsi_qla_host *); +extern void qla2x00_alert_all_vps(struct rsp_que *, uint16_t *); +extern void qla2x00_async_event(scsi_qla_host_t *, struct rsp_que *, + uint16_t *); +extern int qla2x00_vp_abort_isp(scsi_qla_host_t *); /* * Global Function Prototypes in qla_iocb.c source file. @@ -119,8 +124,10 @@ extern void qla2x00_build_scsi_iocbs_32(srb_t *, cmd_entry_t *, uint16_t); extern void qla2x00_build_scsi_iocbs_64(srb_t *, cmd_entry_t *, uint16_t); extern int qla2x00_start_scsi(srb_t *sp); extern int qla24xx_start_scsi(srb_t *sp); -int qla2x00_marker(scsi_qla_host_t *, uint16_t, uint16_t, uint8_t); -int __qla2x00_marker(scsi_qla_host_t *, uint16_t, uint16_t, uint8_t); +int qla2x00_marker(struct scsi_qla_host *, struct req_que *, struct rsp_que *, + uint16_t, uint16_t, uint8_t); +int __qla2x00_marker(struct scsi_qla_host *, struct req_que *, struct rsp_que *, + uint16_t, uint16_t, uint8_t); /* * Global Function Prototypes in qla_mbx.c source file. @@ -154,7 +161,7 @@ extern int qla2x00_issue_iocb(scsi_qla_host_t *, void *, dma_addr_t, size_t); extern int -qla2x00_abort_command(scsi_qla_host_t *, srb_t *); +qla2x00_abort_command(scsi_qla_host_t *, srb_t *, struct req_que *); extern int qla2x00_abort_target(struct fc_port *, unsigned int); @@ -225,7 +232,7 @@ extern int qla24xx_get_isp_stats(scsi_qla_host_t *, struct link_statistics *, dma_addr_t); -extern int qla24xx_abort_command(scsi_qla_host_t *, srb_t *); +extern int qla24xx_abort_command(scsi_qla_host_t *, srb_t *, struct req_que *); extern int qla24xx_abort_target(struct fc_port *, unsigned int); extern int qla24xx_lun_reset(struct fc_port *, unsigned int); @@ -264,10 +271,10 @@ extern int qla84xx_verify_chip(struct scsi_qla_host *, uint16_t *); extern irqreturn_t qla2100_intr_handler(int, void *); extern irqreturn_t qla2300_intr_handler(int, void *); extern irqreturn_t qla24xx_intr_handler(int, void *); -extern void qla2x00_process_response_queue(struct scsi_qla_host *); -extern void qla24xx_process_response_queue(struct scsi_qla_host *); +extern void qla2x00_process_response_queue(struct rsp_que *); +extern void qla24xx_process_response_queue(struct rsp_que *); -extern int qla2x00_request_irqs(scsi_qla_host_t *); +extern int qla2x00_request_irqs(struct qla_hw_data *, struct rsp_que *); extern void qla2x00_free_irqs(scsi_qla_host_t *); /* @@ -367,4 +374,27 @@ extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *); */ extern int qla2x00_dfs_setup(scsi_qla_host_t *); extern int qla2x00_dfs_remove(scsi_qla_host_t *); + +/* Globa function prototypes for multi-q */ +extern int qla25xx_request_irq(struct rsp_que *); +extern int qla25xx_init_req_que(struct scsi_qla_host *, struct req_que *, + uint8_t); +extern int qla25xx_init_rsp_que(struct scsi_qla_host *, struct rsp_que *, + uint8_t); +extern int qla25xx_create_req_que(struct qla_hw_data *, uint16_t, uint8_t, + uint16_t, uint8_t, uint8_t); +extern int qla25xx_create_rsp_que(struct qla_hw_data *, uint16_t, uint8_t, + uint16_t); +extern int qla25xx_update_req_que(struct scsi_qla_host *, uint8_t, uint8_t); +extern void qla2x00_init_response_q_entries(struct rsp_que *); +extern int qla25xx_delete_req_que(struct scsi_qla_host *, struct req_que *); +extern int qla25xx_delete_rsp_que(struct scsi_qla_host *, struct rsp_que *); +extern int qla25xx_create_queues(struct scsi_qla_host *, uint8_t); +extern int qla25xx_delete_queues(struct scsi_qla_host *, uint8_t); +extern uint16_t qla24xx_rd_req_reg(struct qla_hw_data *, uint16_t); +extern uint16_t qla25xx_rd_req_reg(struct qla_hw_data *, uint16_t); +extern void qla24xx_wrt_req_reg(struct qla_hw_data *, uint16_t, uint16_t); +extern void qla25xx_wrt_req_reg(struct qla_hw_data *, uint16_t, uint16_t); +extern void qla25xx_wrt_rsp_reg(struct qla_hw_data *, uint16_t, uint16_t); +extern void qla24xx_wrt_rsp_reg(struct qla_hw_data *, uint16_t, uint16_t); #endif /* _QLA_GBL_H */ diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c index c2a4bfb..0a6f7297 100644 --- a/drivers/scsi/qla2xxx/qla_gs.c +++ b/drivers/scsi/qla2xxx/qla_gs.c @@ -22,8 +22,9 @@ static int qla2x00_sns_rnn_id(scsi_qla_host_t *); * Returns a pointer to the @ha's ms_iocb. */ void * -qla2x00_prep_ms_iocb(scsi_qla_host_t *ha, uint32_t req_size, uint32_t rsp_size) +qla2x00_prep_ms_iocb(scsi_qla_host_t *vha, uint32_t req_size, uint32_t rsp_size) { + struct qla_hw_data *ha = vha->hw; ms_iocb_entry_t *ms_pkt; ms_pkt = ha->ms_iocb; @@ -59,8 +60,9 @@ qla2x00_prep_ms_iocb(scsi_qla_host_t *ha, uint32_t req_size, uint32_t rsp_size) * Returns a pointer to the @ha's ms_iocb. */ void * -qla24xx_prep_ms_iocb(scsi_qla_host_t *ha, uint32_t req_size, uint32_t rsp_size) +qla24xx_prep_ms_iocb(scsi_qla_host_t *vha, uint32_t req_size, uint32_t rsp_size) { + struct qla_hw_data *ha = vha->hw; struct ct_entry_24xx *ct_pkt; ct_pkt = (struct ct_entry_24xx *)ha->ms_iocb; @@ -82,7 +84,7 @@ qla24xx_prep_ms_iocb(scsi_qla_host_t *ha, uint32_t req_size, uint32_t rsp_size) ct_pkt->dseg_1_address[0] = cpu_to_le32(LSD(ha->ct_sns_dma)); ct_pkt->dseg_1_address[1] = cpu_to_le32(MSD(ha->ct_sns_dma)); ct_pkt->dseg_1_len = ct_pkt->rsp_byte_count; - ct_pkt->vp_index = ha->vp_idx; + ct_pkt->vp_index = vha->vp_idx; return (ct_pkt); } @@ -110,16 +112,17 @@ qla2x00_prep_ct_req(struct ct_sns_req *ct_req, uint16_t cmd, uint16_t rsp_size) } static int -qla2x00_chk_ms_status(scsi_qla_host_t *ha, ms_iocb_entry_t *ms_pkt, +qla2x00_chk_ms_status(scsi_qla_host_t *vha, ms_iocb_entry_t *ms_pkt, struct ct_sns_rsp *ct_rsp, const char *routine) { int rval; uint16_t comp_status; + struct qla_hw_data *ha = vha->hw; rval = QLA_FUNCTION_FAILED; if (ms_pkt->entry_status != 0) { DEBUG2_3(printk("scsi(%ld): %s failed, error status (%x).\n", - ha->host_no, routine, ms_pkt->entry_status)); + vha->host_no, routine, ms_pkt->entry_status)); } else { if (IS_FWI2_CAPABLE(ha)) comp_status = le16_to_cpu( @@ -133,7 +136,7 @@ qla2x00_chk_ms_status(scsi_qla_host_t *ha, ms_iocb_entry_t *ms_pkt, if (ct_rsp->header.response != __constant_cpu_to_be16(CT_ACCEPT_RESPONSE)) { DEBUG2_3(printk("scsi(%ld): %s failed, " - "rejected request:\n", ha->host_no, + "rejected request:\n", vha->host_no, routine)); DEBUG2_3(qla2x00_dump_buffer( (uint8_t *)&ct_rsp->header, @@ -144,7 +147,7 @@ qla2x00_chk_ms_status(scsi_qla_host_t *ha, ms_iocb_entry_t *ms_pkt, break; default: DEBUG2_3(printk("scsi(%ld): %s failed, completion " - "status (%x).\n", ha->host_no, routine, + "status (%x).\n", vha->host_no, routine, comp_status)); break; } @@ -160,21 +163,21 @@ qla2x00_chk_ms_status(scsi_qla_host_t *ha, ms_iocb_entry_t *ms_pkt, * Returns 0 on success. */ int -qla2x00_ga_nxt(scsi_qla_host_t *ha, fc_port_t *fcport) +qla2x00_ga_nxt(scsi_qla_host_t *vha, fc_port_t *fcport) { int rval; ms_iocb_entry_t *ms_pkt; struct ct_sns_req *ct_req; struct ct_sns_rsp *ct_rsp; + struct qla_hw_data *ha = vha->hw; - if (IS_QLA2100(ha) || IS_QLA2200(ha)) { - return (qla2x00_sns_ga_nxt(ha, fcport)); - } + if (IS_QLA2100(ha) || IS_QLA2200(ha)) + return qla2x00_sns_ga_nxt(vha, fcport); /* Issue GA_NXT */ /* Prepare common MS IOCB */ - ms_pkt = ha->isp_ops->prep_ms_iocb(ha, GA_NXT_REQ_SIZE, + ms_pkt = ha->isp_ops->prep_ms_iocb(vha, GA_NXT_REQ_SIZE, GA_NXT_RSP_SIZE); /* Prepare CT request */ @@ -188,13 +191,13 @@ qla2x00_ga_nxt(scsi_qla_host_t *ha, fc_port_t *fcport) ct_req->req.port_id.port_id[2] = fcport->d_id.b.al_pa; /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): GA_NXT issue IOCB failed (%d).\n", - ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "GA_NXT") != + vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "GA_NXT") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { @@ -216,7 +219,7 @@ qla2x00_ga_nxt(scsi_qla_host_t *ha, fc_port_t *fcport) "nn %02x%02x%02x%02x%02x%02x%02x%02x " "pn %02x%02x%02x%02x%02x%02x%02x%02x " "portid=%02x%02x%02x.\n", - ha->host_no, + vha->host_no, fcport->node_name[0], fcport->node_name[1], fcport->node_name[2], fcport->node_name[3], fcport->node_name[4], fcport->node_name[5], @@ -242,7 +245,7 @@ qla2x00_ga_nxt(scsi_qla_host_t *ha, fc_port_t *fcport) * Returns 0 on success. */ int -qla2x00_gid_pt(scsi_qla_host_t *ha, sw_info_t *list) +qla2x00_gid_pt(scsi_qla_host_t *vha, sw_info_t *list) { int rval; uint16_t i; @@ -252,16 +255,16 @@ qla2x00_gid_pt(scsi_qla_host_t *ha, sw_info_t *list) struct ct_sns_rsp *ct_rsp; struct ct_sns_gid_pt_data *gid_data; + struct qla_hw_data *ha = vha->hw; - if (IS_QLA2100(ha) || IS_QLA2200(ha)) { - return (qla2x00_sns_gid_pt(ha, list)); - } + if (IS_QLA2100(ha) || IS_QLA2200(ha)) + return qla2x00_sns_gid_pt(vha, list); gid_data = NULL; /* Issue GID_PT */ /* Prepare common MS IOCB */ - ms_pkt = ha->isp_ops->prep_ms_iocb(ha, GID_PT_REQ_SIZE, + ms_pkt = ha->isp_ops->prep_ms_iocb(vha, GID_PT_REQ_SIZE, GID_PT_RSP_SIZE); /* Prepare CT request */ @@ -273,13 +276,13 @@ qla2x00_gid_pt(scsi_qla_host_t *ha, sw_info_t *list) ct_req->req.gid_pt.port_type = NS_NX_PORT_TYPE; /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): GID_PT issue IOCB failed (%d).\n", - ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "GID_PT") != + vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "GID_PT") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { @@ -320,7 +323,7 @@ qla2x00_gid_pt(scsi_qla_host_t *ha, sw_info_t *list) * Returns 0 on success. */ int -qla2x00_gpn_id(scsi_qla_host_t *ha, sw_info_t *list) +qla2x00_gpn_id(scsi_qla_host_t *vha, sw_info_t *list) { int rval; uint16_t i; @@ -328,15 +331,15 @@ qla2x00_gpn_id(scsi_qla_host_t *ha, sw_info_t *list) ms_iocb_entry_t *ms_pkt; struct ct_sns_req *ct_req; struct ct_sns_rsp *ct_rsp; + struct qla_hw_data *ha = vha->hw; - if (IS_QLA2100(ha) || IS_QLA2200(ha)) { - return (qla2x00_sns_gpn_id(ha, list)); - } + if (IS_QLA2100(ha) || IS_QLA2200(ha)) + return qla2x00_sns_gpn_id(vha, list); for (i = 0; i < MAX_FIBRE_DEVICES; i++) { /* Issue GPN_ID */ /* Prepare common MS IOCB */ - ms_pkt = ha->isp_ops->prep_ms_iocb(ha, GPN_ID_REQ_SIZE, + ms_pkt = ha->isp_ops->prep_ms_iocb(vha, GPN_ID_REQ_SIZE, GPN_ID_RSP_SIZE); /* Prepare CT request */ @@ -350,13 +353,13 @@ qla2x00_gpn_id(scsi_qla_host_t *ha, sw_info_t *list) ct_req->req.port_id.port_id[2] = list[i].d_id.b.al_pa; /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): GPN_ID issue IOCB failed " - "(%d).\n", ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, + "(%d).\n", vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "GPN_ID") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { @@ -381,23 +384,22 @@ qla2x00_gpn_id(scsi_qla_host_t *ha, sw_info_t *list) * Returns 0 on success. */ int -qla2x00_gnn_id(scsi_qla_host_t *ha, sw_info_t *list) +qla2x00_gnn_id(scsi_qla_host_t *vha, sw_info_t *list) { int rval; uint16_t i; - + struct qla_hw_data *ha = vha->hw; ms_iocb_entry_t *ms_pkt; struct ct_sns_req *ct_req; struct ct_sns_rsp *ct_rsp; - if (IS_QLA2100(ha) || IS_QLA2200(ha)) { - return (qla2x00_sns_gnn_id(ha, list)); - } + if (IS_QLA2100(ha) || IS_QLA2200(ha)) + return qla2x00_sns_gnn_id(vha, list); for (i = 0; i < MAX_FIBRE_DEVICES; i++) { /* Issue GNN_ID */ /* Prepare common MS IOCB */ - ms_pkt = ha->isp_ops->prep_ms_iocb(ha, GNN_ID_REQ_SIZE, + ms_pkt = ha->isp_ops->prep_ms_iocb(vha, GNN_ID_REQ_SIZE, GNN_ID_RSP_SIZE); /* Prepare CT request */ @@ -411,13 +413,13 @@ qla2x00_gnn_id(scsi_qla_host_t *ha, sw_info_t *list) ct_req->req.port_id.port_id[2] = list[i].d_id.b.al_pa; /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): GNN_ID issue IOCB failed " - "(%d).\n", ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, + "(%d).\n", vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "GNN_ID") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { @@ -429,7 +431,7 @@ qla2x00_gnn_id(scsi_qla_host_t *ha, sw_info_t *list) "nn %02x%02x%02x%02x%02x%02x%02x%02x " "pn %02x%02x%02x%02x%02x%02x%02x%02x " "portid=%02x%02x%02x.\n", - ha->host_no, + vha->host_no, list[i].node_name[0], list[i].node_name[1], list[i].node_name[2], list[i].node_name[3], list[i].node_name[4], list[i].node_name[5], @@ -457,21 +459,20 @@ qla2x00_gnn_id(scsi_qla_host_t *ha, sw_info_t *list) * Returns 0 on success. */ int -qla2x00_rft_id(scsi_qla_host_t *ha) +qla2x00_rft_id(scsi_qla_host_t *vha) { int rval; - + struct qla_hw_data *ha = vha->hw; ms_iocb_entry_t *ms_pkt; struct ct_sns_req *ct_req; struct ct_sns_rsp *ct_rsp; - if (IS_QLA2100(ha) || IS_QLA2200(ha)) { - return (qla2x00_sns_rft_id(ha)); - } + if (IS_QLA2100(ha) || IS_QLA2200(ha)) + return qla2x00_sns_rft_id(vha); /* Issue RFT_ID */ /* Prepare common MS IOCB */ - ms_pkt = ha->isp_ops->prep_ms_iocb(ha, RFT_ID_REQ_SIZE, + ms_pkt = ha->isp_ops->prep_ms_iocb(vha, RFT_ID_REQ_SIZE, RFT_ID_RSP_SIZE); /* Prepare CT request */ @@ -480,25 +481,25 @@ qla2x00_rft_id(scsi_qla_host_t *ha) ct_rsp = &ha->ct_sns->p.rsp; /* Prepare CT arguments -- port_id, FC-4 types */ - ct_req->req.rft_id.port_id[0] = ha->d_id.b.domain; - ct_req->req.rft_id.port_id[1] = ha->d_id.b.area; - ct_req->req.rft_id.port_id[2] = ha->d_id.b.al_pa; + ct_req->req.rft_id.port_id[0] = vha->d_id.b.domain; + ct_req->req.rft_id.port_id[1] = vha->d_id.b.area; + ct_req->req.rft_id.port_id[2] = vha->d_id.b.al_pa; ct_req->req.rft_id.fc4_types[2] = 0x01; /* FCP-3 */ /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): RFT_ID issue IOCB failed (%d).\n", - ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "RFT_ID") != + vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RFT_ID") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { DEBUG2(printk("scsi(%ld): RFT_ID exiting normally.\n", - ha->host_no)); + vha->host_no)); } return (rval); @@ -511,23 +512,23 @@ qla2x00_rft_id(scsi_qla_host_t *ha) * Returns 0 on success. */ int -qla2x00_rff_id(scsi_qla_host_t *ha) +qla2x00_rff_id(scsi_qla_host_t *vha) { int rval; - + struct qla_hw_data *ha = vha->hw; ms_iocb_entry_t *ms_pkt; struct ct_sns_req *ct_req; struct ct_sns_rsp *ct_rsp; if (IS_QLA2100(ha) || IS_QLA2200(ha)) { DEBUG2(printk("scsi(%ld): RFF_ID call unsupported on " - "ISP2100/ISP2200.\n", ha->host_no)); + "ISP2100/ISP2200.\n", vha->host_no)); return (QLA_SUCCESS); } /* Issue RFF_ID */ /* Prepare common MS IOCB */ - ms_pkt = ha->isp_ops->prep_ms_iocb(ha, RFF_ID_REQ_SIZE, + ms_pkt = ha->isp_ops->prep_ms_iocb(vha, RFF_ID_REQ_SIZE, RFF_ID_RSP_SIZE); /* Prepare CT request */ @@ -536,26 +537,26 @@ qla2x00_rff_id(scsi_qla_host_t *ha) ct_rsp = &ha->ct_sns->p.rsp; /* Prepare CT arguments -- port_id, FC-4 feature, FC-4 type */ - ct_req->req.rff_id.port_id[0] = ha->d_id.b.domain; - ct_req->req.rff_id.port_id[1] = ha->d_id.b.area; - ct_req->req.rff_id.port_id[2] = ha->d_id.b.al_pa; + ct_req->req.rff_id.port_id[0] = vha->d_id.b.domain; + ct_req->req.rff_id.port_id[1] = vha->d_id.b.area; + ct_req->req.rff_id.port_id[2] = vha->d_id.b.al_pa; ct_req->req.rff_id.fc4_feature = BIT_1; ct_req->req.rff_id.fc4_type = 0x08; /* SCSI - FCP */ /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): RFF_ID issue IOCB failed (%d).\n", - ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "RFF_ID") != + vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RFF_ID") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { DEBUG2(printk("scsi(%ld): RFF_ID exiting normally.\n", - ha->host_no)); + vha->host_no)); } return (rval); @@ -568,21 +569,20 @@ qla2x00_rff_id(scsi_qla_host_t *ha) * Returns 0 on success. */ int -qla2x00_rnn_id(scsi_qla_host_t *ha) +qla2x00_rnn_id(scsi_qla_host_t *vha) { int rval; - + struct qla_hw_data *ha = vha->hw; ms_iocb_entry_t *ms_pkt; struct ct_sns_req *ct_req; struct ct_sns_rsp *ct_rsp; - if (IS_QLA2100(ha) || IS_QLA2200(ha)) { - return (qla2x00_sns_rnn_id(ha)); - } + if (IS_QLA2100(ha) || IS_QLA2200(ha)) + return qla2x00_sns_rnn_id(vha); /* Issue RNN_ID */ /* Prepare common MS IOCB */ - ms_pkt = ha->isp_ops->prep_ms_iocb(ha, RNN_ID_REQ_SIZE, + ms_pkt = ha->isp_ops->prep_ms_iocb(vha, RNN_ID_REQ_SIZE, RNN_ID_RSP_SIZE); /* Prepare CT request */ @@ -591,33 +591,34 @@ qla2x00_rnn_id(scsi_qla_host_t *ha) ct_rsp = &ha->ct_sns->p.rsp; /* Prepare CT arguments -- port_id, node_name */ - ct_req->req.rnn_id.port_id[0] = ha->d_id.b.domain; - ct_req->req.rnn_id.port_id[1] = ha->d_id.b.area; - ct_req->req.rnn_id.port_id[2] = ha->d_id.b.al_pa; + ct_req->req.rnn_id.port_id[0] = vha->d_id.b.domain; + ct_req->req.rnn_id.port_id[1] = vha->d_id.b.area; + ct_req->req.rnn_id.port_id[2] = vha->d_id.b.al_pa; - memcpy(ct_req->req.rnn_id.node_name, ha->node_name, WWN_SIZE); + memcpy(ct_req->req.rnn_id.node_name, vha->node_name, WWN_SIZE); /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): RNN_ID issue IOCB failed (%d).\n", - ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "RNN_ID") != + vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RNN_ID") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { DEBUG2(printk("scsi(%ld): RNN_ID exiting normally.\n", - ha->host_no)); + vha->host_no)); } return (rval); } void -qla2x00_get_sym_node_name(scsi_qla_host_t *ha, uint8_t *snn) +qla2x00_get_sym_node_name(scsi_qla_host_t *vha, uint8_t *snn) { + struct qla_hw_data *ha = vha->hw; sprintf(snn, "%s FW:v%d.%02d.%02d DVR:v%s",ha->model_number, ha->fw_major_version, ha->fw_minor_version, ha->fw_subminor_version, qla2x00_version_str); @@ -630,23 +631,24 @@ qla2x00_get_sym_node_name(scsi_qla_host_t *ha, uint8_t *snn) * Returns 0 on success. */ int -qla2x00_rsnn_nn(scsi_qla_host_t *ha) +qla2x00_rsnn_nn(scsi_qla_host_t *vha) { int rval; + struct qla_hw_data *ha = vha->hw; ms_iocb_entry_t *ms_pkt; struct ct_sns_req *ct_req; struct ct_sns_rsp *ct_rsp; if (IS_QLA2100(ha) || IS_QLA2200(ha)) { DEBUG2(printk("scsi(%ld): RSNN_ID call unsupported on " - "ISP2100/ISP2200.\n", ha->host_no)); + "ISP2100/ISP2200.\n", vha->host_no)); return (QLA_SUCCESS); } /* Issue RSNN_NN */ /* Prepare common MS IOCB */ /* Request size adjusted after CT preparation */ - ms_pkt = ha->isp_ops->prep_ms_iocb(ha, 0, RSNN_NN_RSP_SIZE); + ms_pkt = ha->isp_ops->prep_ms_iocb(vha, 0, RSNN_NN_RSP_SIZE); /* Prepare CT request */ ct_req = qla2x00_prep_ct_req(&ha->ct_sns->p.req, RSNN_NN_CMD, @@ -654,10 +656,10 @@ qla2x00_rsnn_nn(scsi_qla_host_t *ha) ct_rsp = &ha->ct_sns->p.rsp; /* Prepare CT arguments -- node_name, symbolic node_name, size */ - memcpy(ct_req->req.rsnn_nn.node_name, ha->node_name, WWN_SIZE); + memcpy(ct_req->req.rsnn_nn.node_name, vha->node_name, WWN_SIZE); /* Prepare the Symbolic Node Name */ - qla2x00_get_sym_node_name(ha, ct_req->req.rsnn_nn.sym_node_name); + qla2x00_get_sym_node_name(vha, ct_req->req.rsnn_nn.sym_node_name); /* Calculate SNN length */ ct_req->req.rsnn_nn.name_len = @@ -669,18 +671,18 @@ qla2x00_rsnn_nn(scsi_qla_host_t *ha) ms_pkt->dseg_req_length = ms_pkt->req_bytecount; /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): RSNN_NN issue IOCB failed (%d).\n", - ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "RSNN_NN") != + vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RSNN_NN") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { DEBUG2(printk("scsi(%ld): RSNN_NN exiting normally.\n", - ha->host_no)); + vha->host_no)); } return (rval); @@ -696,11 +698,12 @@ qla2x00_rsnn_nn(scsi_qla_host_t *ha) * Returns a pointer to the @ha's sns_cmd. */ static inline struct sns_cmd_pkt * -qla2x00_prep_sns_cmd(scsi_qla_host_t *ha, uint16_t cmd, uint16_t scmd_len, +qla2x00_prep_sns_cmd(scsi_qla_host_t *vha, uint16_t cmd, uint16_t scmd_len, uint16_t data_size) { uint16_t wc; struct sns_cmd_pkt *sns_cmd; + struct qla_hw_data *ha = vha->hw; sns_cmd = ha->sns_cmd; memset(sns_cmd, 0, sizeof(struct sns_cmd_pkt)); @@ -726,15 +729,15 @@ qla2x00_prep_sns_cmd(scsi_qla_host_t *ha, uint16_t cmd, uint16_t scmd_len, * Returns 0 on success. */ static int -qla2x00_sns_ga_nxt(scsi_qla_host_t *ha, fc_port_t *fcport) +qla2x00_sns_ga_nxt(scsi_qla_host_t *vha, fc_port_t *fcport) { int rval; - + struct qla_hw_data *ha = vha->hw; struct sns_cmd_pkt *sns_cmd; /* Issue GA_NXT. */ /* Prepare SNS command request. */ - sns_cmd = qla2x00_prep_sns_cmd(ha, GA_NXT_CMD, GA_NXT_SNS_SCMD_LEN, + sns_cmd = qla2x00_prep_sns_cmd(vha, GA_NXT_CMD, GA_NXT_SNS_SCMD_LEN, GA_NXT_SNS_DATA_SIZE); /* Prepare SNS command arguments -- port_id. */ @@ -743,16 +746,16 @@ qla2x00_sns_ga_nxt(scsi_qla_host_t *ha, fc_port_t *fcport) sns_cmd->p.cmd.param[2] = fcport->d_id.b.domain; /* Execute SNS command. */ - rval = qla2x00_send_sns(ha, ha->sns_cmd_dma, GA_NXT_SNS_CMD_SIZE / 2, + rval = qla2x00_send_sns(vha, ha->sns_cmd_dma, GA_NXT_SNS_CMD_SIZE / 2, sizeof(struct sns_cmd_pkt)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): GA_NXT Send SNS failed (%d).\n", - ha->host_no, rval)); + vha->host_no, rval)); } else if (sns_cmd->p.gan_data[8] != 0x80 || sns_cmd->p.gan_data[9] != 0x02) { DEBUG2_3(printk("scsi(%ld): GA_NXT failed, rejected request, " - "ga_nxt_rsp:\n", ha->host_no)); + "ga_nxt_rsp:\n", vha->host_no)); DEBUG2_3(qla2x00_dump_buffer(sns_cmd->p.gan_data, 16)); rval = QLA_FUNCTION_FAILED; } else { @@ -772,7 +775,7 @@ qla2x00_sns_ga_nxt(scsi_qla_host_t *ha, fc_port_t *fcport) "nn %02x%02x%02x%02x%02x%02x%02x%02x " "pn %02x%02x%02x%02x%02x%02x%02x%02x " "portid=%02x%02x%02x.\n", - ha->host_no, + vha->host_no, fcport->node_name[0], fcport->node_name[1], fcport->node_name[2], fcport->node_name[3], fcport->node_name[4], fcport->node_name[5], @@ -800,33 +803,33 @@ qla2x00_sns_ga_nxt(scsi_qla_host_t *ha, fc_port_t *fcport) * Returns 0 on success. */ static int -qla2x00_sns_gid_pt(scsi_qla_host_t *ha, sw_info_t *list) +qla2x00_sns_gid_pt(scsi_qla_host_t *vha, sw_info_t *list) { int rval; - + struct qla_hw_data *ha = vha->hw; uint16_t i; uint8_t *entry; struct sns_cmd_pkt *sns_cmd; /* Issue GID_PT. */ /* Prepare SNS command request. */ - sns_cmd = qla2x00_prep_sns_cmd(ha, GID_PT_CMD, GID_PT_SNS_SCMD_LEN, + sns_cmd = qla2x00_prep_sns_cmd(vha, GID_PT_CMD, GID_PT_SNS_SCMD_LEN, GID_PT_SNS_DATA_SIZE); /* Prepare SNS command arguments -- port_type. */ sns_cmd->p.cmd.param[0] = NS_NX_PORT_TYPE; /* Execute SNS command. */ - rval = qla2x00_send_sns(ha, ha->sns_cmd_dma, GID_PT_SNS_CMD_SIZE / 2, + rval = qla2x00_send_sns(vha, ha->sns_cmd_dma, GID_PT_SNS_CMD_SIZE / 2, sizeof(struct sns_cmd_pkt)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): GID_PT Send SNS failed (%d).\n", - ha->host_no, rval)); + vha->host_no, rval)); } else if (sns_cmd->p.gid_data[8] != 0x80 || sns_cmd->p.gid_data[9] != 0x02) { DEBUG2_3(printk("scsi(%ld): GID_PT failed, rejected request, " - "gid_rsp:\n", ha->host_no)); + "gid_rsp:\n", vha->host_no)); DEBUG2_3(qla2x00_dump_buffer(sns_cmd->p.gid_data, 16)); rval = QLA_FUNCTION_FAILED; } else { @@ -867,17 +870,17 @@ qla2x00_sns_gid_pt(scsi_qla_host_t *ha, sw_info_t *list) * Returns 0 on success. */ static int -qla2x00_sns_gpn_id(scsi_qla_host_t *ha, sw_info_t *list) +qla2x00_sns_gpn_id(scsi_qla_host_t *vha, sw_info_t *list) { int rval; - + struct qla_hw_data *ha = vha->hw; uint16_t i; struct sns_cmd_pkt *sns_cmd; for (i = 0; i < MAX_FIBRE_DEVICES; i++) { /* Issue GPN_ID */ /* Prepare SNS command request. */ - sns_cmd = qla2x00_prep_sns_cmd(ha, GPN_ID_CMD, + sns_cmd = qla2x00_prep_sns_cmd(vha, GPN_ID_CMD, GPN_ID_SNS_SCMD_LEN, GPN_ID_SNS_DATA_SIZE); /* Prepare SNS command arguments -- port_id. */ @@ -886,16 +889,16 @@ qla2x00_sns_gpn_id(scsi_qla_host_t *ha, sw_info_t *list) sns_cmd->p.cmd.param[2] = list[i].d_id.b.domain; /* Execute SNS command. */ - rval = qla2x00_send_sns(ha, ha->sns_cmd_dma, + rval = qla2x00_send_sns(vha, ha->sns_cmd_dma, GPN_ID_SNS_CMD_SIZE / 2, sizeof(struct sns_cmd_pkt)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): GPN_ID Send SNS failed " - "(%d).\n", ha->host_no, rval)); + "(%d).\n", vha->host_no, rval)); } else if (sns_cmd->p.gpn_data[8] != 0x80 || sns_cmd->p.gpn_data[9] != 0x02) { DEBUG2_3(printk("scsi(%ld): GPN_ID failed, rejected " - "request, gpn_rsp:\n", ha->host_no)); + "request, gpn_rsp:\n", vha->host_no)); DEBUG2_3(qla2x00_dump_buffer(sns_cmd->p.gpn_data, 16)); rval = QLA_FUNCTION_FAILED; } else { @@ -922,17 +925,17 @@ qla2x00_sns_gpn_id(scsi_qla_host_t *ha, sw_info_t *list) * Returns 0 on success. */ static int -qla2x00_sns_gnn_id(scsi_qla_host_t *ha, sw_info_t *list) +qla2x00_sns_gnn_id(scsi_qla_host_t *vha, sw_info_t *list) { int rval; - + struct qla_hw_data *ha = vha->hw; uint16_t i; struct sns_cmd_pkt *sns_cmd; for (i = 0; i < MAX_FIBRE_DEVICES; i++) { /* Issue GNN_ID */ /* Prepare SNS command request. */ - sns_cmd = qla2x00_prep_sns_cmd(ha, GNN_ID_CMD, + sns_cmd = qla2x00_prep_sns_cmd(vha, GNN_ID_CMD, GNN_ID_SNS_SCMD_LEN, GNN_ID_SNS_DATA_SIZE); /* Prepare SNS command arguments -- port_id. */ @@ -941,16 +944,16 @@ qla2x00_sns_gnn_id(scsi_qla_host_t *ha, sw_info_t *list) sns_cmd->p.cmd.param[2] = list[i].d_id.b.domain; /* Execute SNS command. */ - rval = qla2x00_send_sns(ha, ha->sns_cmd_dma, + rval = qla2x00_send_sns(vha, ha->sns_cmd_dma, GNN_ID_SNS_CMD_SIZE / 2, sizeof(struct sns_cmd_pkt)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): GNN_ID Send SNS failed " - "(%d).\n", ha->host_no, rval)); + "(%d).\n", vha->host_no, rval)); } else if (sns_cmd->p.gnn_data[8] != 0x80 || sns_cmd->p.gnn_data[9] != 0x02) { DEBUG2_3(printk("scsi(%ld): GNN_ID failed, rejected " - "request, gnn_rsp:\n", ha->host_no)); + "request, gnn_rsp:\n", vha->host_no)); DEBUG2_3(qla2x00_dump_buffer(sns_cmd->p.gnn_data, 16)); rval = QLA_FUNCTION_FAILED; } else { @@ -962,7 +965,7 @@ qla2x00_sns_gnn_id(scsi_qla_host_t *ha, sw_info_t *list) "nn %02x%02x%02x%02x%02x%02x%02x%02x " "pn %02x%02x%02x%02x%02x%02x%02x%02x " "portid=%02x%02x%02x.\n", - ha->host_no, + vha->host_no, list[i].node_name[0], list[i].node_name[1], list[i].node_name[2], list[i].node_name[3], list[i].node_name[4], list[i].node_name[5], @@ -992,40 +995,40 @@ qla2x00_sns_gnn_id(scsi_qla_host_t *ha, sw_info_t *list) * Returns 0 on success. */ static int -qla2x00_sns_rft_id(scsi_qla_host_t *ha) +qla2x00_sns_rft_id(scsi_qla_host_t *vha) { int rval; - + struct qla_hw_data *ha = vha->hw; struct sns_cmd_pkt *sns_cmd; /* Issue RFT_ID. */ /* Prepare SNS command request. */ - sns_cmd = qla2x00_prep_sns_cmd(ha, RFT_ID_CMD, RFT_ID_SNS_SCMD_LEN, + sns_cmd = qla2x00_prep_sns_cmd(vha, RFT_ID_CMD, RFT_ID_SNS_SCMD_LEN, RFT_ID_SNS_DATA_SIZE); /* Prepare SNS command arguments -- port_id, FC-4 types */ - sns_cmd->p.cmd.param[0] = ha->d_id.b.al_pa; - sns_cmd->p.cmd.param[1] = ha->d_id.b.area; - sns_cmd->p.cmd.param[2] = ha->d_id.b.domain; + sns_cmd->p.cmd.param[0] = vha->d_id.b.al_pa; + sns_cmd->p.cmd.param[1] = vha->d_id.b.area; + sns_cmd->p.cmd.param[2] = vha->d_id.b.domain; sns_cmd->p.cmd.param[5] = 0x01; /* FCP-3 */ /* Execute SNS command. */ - rval = qla2x00_send_sns(ha, ha->sns_cmd_dma, RFT_ID_SNS_CMD_SIZE / 2, + rval = qla2x00_send_sns(vha, ha->sns_cmd_dma, RFT_ID_SNS_CMD_SIZE / 2, sizeof(struct sns_cmd_pkt)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): RFT_ID Send SNS failed (%d).\n", - ha->host_no, rval)); + vha->host_no, rval)); } else if (sns_cmd->p.rft_data[8] != 0x80 || sns_cmd->p.rft_data[9] != 0x02) { DEBUG2_3(printk("scsi(%ld): RFT_ID failed, rejected request, " - "rft_rsp:\n", ha->host_no)); + "rft_rsp:\n", vha->host_no)); DEBUG2_3(qla2x00_dump_buffer(sns_cmd->p.rft_data, 16)); rval = QLA_FUNCTION_FAILED; } else { DEBUG2(printk("scsi(%ld): RFT_ID exiting normally.\n", - ha->host_no)); + vha->host_no)); } return (rval); @@ -1041,47 +1044,47 @@ qla2x00_sns_rft_id(scsi_qla_host_t *ha) * Returns 0 on success. */ static int -qla2x00_sns_rnn_id(scsi_qla_host_t *ha) +qla2x00_sns_rnn_id(scsi_qla_host_t *vha) { int rval; - + struct qla_hw_data *ha = vha->hw; struct sns_cmd_pkt *sns_cmd; /* Issue RNN_ID. */ /* Prepare SNS command request. */ - sns_cmd = qla2x00_prep_sns_cmd(ha, RNN_ID_CMD, RNN_ID_SNS_SCMD_LEN, + sns_cmd = qla2x00_prep_sns_cmd(vha, RNN_ID_CMD, RNN_ID_SNS_SCMD_LEN, RNN_ID_SNS_DATA_SIZE); /* Prepare SNS command arguments -- port_id, nodename. */ - sns_cmd->p.cmd.param[0] = ha->d_id.b.al_pa; - sns_cmd->p.cmd.param[1] = ha->d_id.b.area; - sns_cmd->p.cmd.param[2] = ha->d_id.b.domain; - - sns_cmd->p.cmd.param[4] = ha->node_name[7]; - sns_cmd->p.cmd.param[5] = ha->node_name[6]; - sns_cmd->p.cmd.param[6] = ha->node_name[5]; - sns_cmd->p.cmd.param[7] = ha->node_name[4]; - sns_cmd->p.cmd.param[8] = ha->node_name[3]; - sns_cmd->p.cmd.param[9] = ha->node_name[2]; - sns_cmd->p.cmd.param[10] = ha->node_name[1]; - sns_cmd->p.cmd.param[11] = ha->node_name[0]; + sns_cmd->p.cmd.param[0] = vha->d_id.b.al_pa; + sns_cmd->p.cmd.param[1] = vha->d_id.b.area; + sns_cmd->p.cmd.param[2] = vha->d_id.b.domain; + + sns_cmd->p.cmd.param[4] = vha->node_name[7]; + sns_cmd->p.cmd.param[5] = vha->node_name[6]; + sns_cmd->p.cmd.param[6] = vha->node_name[5]; + sns_cmd->p.cmd.param[7] = vha->node_name[4]; + sns_cmd->p.cmd.param[8] = vha->node_name[3]; + sns_cmd->p.cmd.param[9] = vha->node_name[2]; + sns_cmd->p.cmd.param[10] = vha->node_name[1]; + sns_cmd->p.cmd.param[11] = vha->node_name[0]; /* Execute SNS command. */ - rval = qla2x00_send_sns(ha, ha->sns_cmd_dma, RNN_ID_SNS_CMD_SIZE / 2, + rval = qla2x00_send_sns(vha, ha->sns_cmd_dma, RNN_ID_SNS_CMD_SIZE / 2, sizeof(struct sns_cmd_pkt)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): RNN_ID Send SNS failed (%d).\n", - ha->host_no, rval)); + vha->host_no, rval)); } else if (sns_cmd->p.rnn_data[8] != 0x80 || sns_cmd->p.rnn_data[9] != 0x02) { DEBUG2_3(printk("scsi(%ld): RNN_ID failed, rejected request, " - "rnn_rsp:\n", ha->host_no)); + "rnn_rsp:\n", vha->host_no)); DEBUG2_3(qla2x00_dump_buffer(sns_cmd->p.rnn_data, 16)); rval = QLA_FUNCTION_FAILED; } else { DEBUG2(printk("scsi(%ld): RNN_ID exiting normally.\n", - ha->host_no)); + vha->host_no)); } return (rval); @@ -1094,25 +1097,25 @@ qla2x00_sns_rnn_id(scsi_qla_host_t *ha) * Returns 0 on success. */ static int -qla2x00_mgmt_svr_login(scsi_qla_host_t *ha) +qla2x00_mgmt_svr_login(scsi_qla_host_t *vha) { int ret; uint16_t mb[MAILBOX_REGISTER_COUNT]; - + struct qla_hw_data *ha = vha->hw; ret = QLA_SUCCESS; - if (ha->flags.management_server_logged_in) + if (vha->flags.management_server_logged_in) return ret; - ha->isp_ops->fabric_login(ha, ha->mgmt_svr_loop_id, 0xff, 0xff, 0xfa, + ha->isp_ops->fabric_login(vha, vha->mgmt_svr_loop_id, 0xff, 0xff, 0xfa, mb, BIT_1); if (mb[0] != MBS_COMMAND_COMPLETE) { DEBUG2_13(printk("%s(%ld): Failed MANAGEMENT_SERVER login: " "loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[6]=%x mb[7]=%x\n", - __func__, ha->host_no, ha->mgmt_svr_loop_id, mb[0], mb[1], + __func__, vha->host_no, vha->mgmt_svr_loop_id, mb[0], mb[1], mb[2], mb[6], mb[7])); ret = QLA_FUNCTION_FAILED; } else - ha->flags.management_server_logged_in = 1; + vha->flags.management_server_logged_in = 1; return ret; } @@ -1126,17 +1129,17 @@ qla2x00_mgmt_svr_login(scsi_qla_host_t *ha) * Returns a pointer to the @ha's ms_iocb. */ void * -qla2x00_prep_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size, +qla2x00_prep_ms_fdmi_iocb(scsi_qla_host_t *vha, uint32_t req_size, uint32_t rsp_size) { ms_iocb_entry_t *ms_pkt; - + struct qla_hw_data *ha = vha->hw; ms_pkt = ha->ms_iocb; memset(ms_pkt, 0, sizeof(ms_iocb_entry_t)); ms_pkt->entry_type = MS_IOCB_TYPE; ms_pkt->entry_count = 1; - SET_TARGET_ID(ha, ms_pkt->loop_id, ha->mgmt_svr_loop_id); + SET_TARGET_ID(ha, ms_pkt->loop_id, vha->mgmt_svr_loop_id); ms_pkt->control_flags = __constant_cpu_to_le16(CF_READ | CF_HEAD_TAG); ms_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ms_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); @@ -1164,17 +1167,18 @@ qla2x00_prep_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size, * Returns a pointer to the @ha's ms_iocb. */ void * -qla24xx_prep_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size, +qla24xx_prep_ms_fdmi_iocb(scsi_qla_host_t *vha, uint32_t req_size, uint32_t rsp_size) { struct ct_entry_24xx *ct_pkt; + struct qla_hw_data *ha = vha->hw; ct_pkt = (struct ct_entry_24xx *)ha->ms_iocb; memset(ct_pkt, 0, sizeof(struct ct_entry_24xx)); ct_pkt->entry_type = CT_IOCB_TYPE; ct_pkt->entry_count = 1; - ct_pkt->nport_handle = cpu_to_le16(ha->mgmt_svr_loop_id); + ct_pkt->nport_handle = cpu_to_le16(vha->mgmt_svr_loop_id); ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1); @@ -1188,14 +1192,15 @@ qla24xx_prep_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size, ct_pkt->dseg_1_address[0] = cpu_to_le32(LSD(ha->ct_sns_dma)); ct_pkt->dseg_1_address[1] = cpu_to_le32(MSD(ha->ct_sns_dma)); ct_pkt->dseg_1_len = ct_pkt->rsp_byte_count; - ct_pkt->vp_index = ha->vp_idx; + ct_pkt->vp_index = vha->vp_idx; return ct_pkt; } static inline ms_iocb_entry_t * -qla2x00_update_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size) +qla2x00_update_ms_fdmi_iocb(scsi_qla_host_t *vha, uint32_t req_size) { + struct qla_hw_data *ha = vha->hw; ms_iocb_entry_t *ms_pkt = ha->ms_iocb; struct ct_entry_24xx *ct_pkt = (struct ct_entry_24xx *)ha->ms_iocb; @@ -1240,7 +1245,7 @@ qla2x00_prep_ct_fdmi_req(struct ct_sns_req *ct_req, uint16_t cmd, * Returns 0 on success. */ static int -qla2x00_fdmi_rhba(scsi_qla_host_t *ha) +qla2x00_fdmi_rhba(scsi_qla_host_t *vha) { int rval, alen; uint32_t size, sn; @@ -1250,11 +1255,12 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) struct ct_sns_rsp *ct_rsp; uint8_t *entries; struct ct_fdmi_hba_attr *eiter; + struct qla_hw_data *ha = vha->hw; /* Issue RHBA */ /* Prepare common MS IOCB */ /* Request size adjusted after CT preparation */ - ms_pkt = ha->isp_ops->prep_ms_fdmi_iocb(ha, 0, RHBA_RSP_SIZE); + ms_pkt = ha->isp_ops->prep_ms_fdmi_iocb(vha, 0, RHBA_RSP_SIZE); /* Prepare CT request */ ct_req = qla2x00_prep_ct_fdmi_req(&ha->ct_sns->p.req, RHBA_CMD, @@ -1262,9 +1268,9 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) ct_rsp = &ha->ct_sns->p.rsp; /* Prepare FDMI command arguments -- attribute block, attributes. */ - memcpy(ct_req->req.rhba.hba_identifier, ha->port_name, WWN_SIZE); + memcpy(ct_req->req.rhba.hba_identifier, vha->port_name, WWN_SIZE); ct_req->req.rhba.entry_count = __constant_cpu_to_be32(1); - memcpy(ct_req->req.rhba.port_name, ha->port_name, WWN_SIZE); + memcpy(ct_req->req.rhba.port_name, vha->port_name, WWN_SIZE); size = 2 * WWN_SIZE + 4 + 4; /* Attributes */ @@ -1276,11 +1282,11 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) eiter = (struct ct_fdmi_hba_attr *) (entries + size); eiter->type = __constant_cpu_to_be16(FDMI_HBA_NODE_NAME); eiter->len = __constant_cpu_to_be16(4 + WWN_SIZE); - memcpy(eiter->a.node_name, ha->node_name, WWN_SIZE); + memcpy(eiter->a.node_name, vha->node_name, WWN_SIZE); size += 4 + WWN_SIZE; DEBUG13(printk("%s(%ld): NODENAME=%02x%02x%02x%02x%02x%02x%02x%02x.\n", - __func__, ha->host_no, + __func__, vha->host_no, eiter->a.node_name[0], eiter->a.node_name[1], eiter->a.node_name[2], eiter->a.node_name[3], eiter->a.node_name[4], eiter->a.node_name[5], eiter->a.node_name[6], eiter->a.node_name[7])); @@ -1294,7 +1300,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) eiter->len = cpu_to_be16(4 + alen); size += 4 + alen; - DEBUG13(printk("%s(%ld): MANUFACTURER=%s.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): MANUFACTURER=%s.\n", __func__, vha->host_no, eiter->a.manufacturer)); /* Serial number. */ @@ -1307,7 +1313,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) eiter->len = cpu_to_be16(4 + alen); size += 4 + alen; - DEBUG13(printk("%s(%ld): SERIALNO=%s.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): SERIALNO=%s.\n", __func__, vha->host_no, eiter->a.serial_num)); /* Model name. */ @@ -1319,7 +1325,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) eiter->len = cpu_to_be16(4 + alen); size += 4 + alen; - DEBUG13(printk("%s(%ld): MODEL_NAME=%s.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): MODEL_NAME=%s.\n", __func__, vha->host_no, eiter->a.model)); /* Model description. */ @@ -1332,7 +1338,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) eiter->len = cpu_to_be16(4 + alen); size += 4 + alen; - DEBUG13(printk("%s(%ld): MODEL_DESC=%s.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): MODEL_DESC=%s.\n", __func__, vha->host_no, eiter->a.model_desc)); /* Hardware version. */ @@ -1344,7 +1350,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) eiter->len = cpu_to_be16(4 + alen); size += 4 + alen; - DEBUG13(printk("%s(%ld): HARDWAREVER=%s.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): HARDWAREVER=%s.\n", __func__, vha->host_no, eiter->a.hw_version)); /* Driver version. */ @@ -1356,7 +1362,7 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) eiter->len = cpu_to_be16(4 + alen); size += 4 + alen; - DEBUG13(printk("%s(%ld): DRIVERVER=%s.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): DRIVERVER=%s.\n", __func__, vha->host_no, eiter->a.driver_version)); /* Option ROM version. */ @@ -1368,27 +1374,27 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) eiter->len = cpu_to_be16(4 + alen); size += 4 + alen; - DEBUG13(printk("%s(%ld): OPTROMVER=%s.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): OPTROMVER=%s.\n", __func__, vha->host_no, eiter->a.orom_version)); /* Firmware version */ eiter = (struct ct_fdmi_hba_attr *) (entries + size); eiter->type = __constant_cpu_to_be16(FDMI_HBA_FIRMWARE_VERSION); - ha->isp_ops->fw_version_str(ha, eiter->a.fw_version); + ha->isp_ops->fw_version_str(vha, eiter->a.fw_version); alen = strlen(eiter->a.fw_version); alen += (alen & 3) ? (4 - (alen & 3)) : 4; eiter->len = cpu_to_be16(4 + alen); size += 4 + alen; - DEBUG13(printk("%s(%ld): FIRMWAREVER=%s.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): FIRMWAREVER=%s.\n", __func__, vha->host_no, eiter->a.fw_version)); /* Update MS request size. */ - qla2x00_update_ms_fdmi_iocb(ha, size + 16); + qla2x00_update_ms_fdmi_iocb(vha, size + 16); DEBUG13(printk("%s(%ld): RHBA identifier=" "%02x%02x%02x%02x%02x%02x%02x%02x size=%d.\n", __func__, - ha->host_no, ct_req->req.rhba.hba_identifier[0], + vha->host_no, ct_req->req.rhba.hba_identifier[0], ct_req->req.rhba.hba_identifier[1], ct_req->req.rhba.hba_identifier[2], ct_req->req.rhba.hba_identifier[3], @@ -1399,25 +1405,25 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) DEBUG13(qla2x00_dump_buffer(entries, size)); /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): RHBA issue IOCB failed (%d).\n", - ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "RHBA") != + vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RHBA") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; if (ct_rsp->header.reason_code == CT_REASON_CANNOT_PERFORM && ct_rsp->header.explanation_code == CT_EXPL_ALREADY_REGISTERED) { DEBUG2_13(printk("%s(%ld): HBA already registered.\n", - __func__, ha->host_no)); + __func__, vha->host_no)); rval = QLA_ALREADY_REGISTERED; } } else { DEBUG2(printk("scsi(%ld): RHBA exiting normally.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -1430,17 +1436,17 @@ qla2x00_fdmi_rhba(scsi_qla_host_t *ha) * Returns 0 on success. */ static int -qla2x00_fdmi_dhba(scsi_qla_host_t *ha) +qla2x00_fdmi_dhba(scsi_qla_host_t *vha) { int rval; - + struct qla_hw_data *ha = vha->hw; ms_iocb_entry_t *ms_pkt; struct ct_sns_req *ct_req; struct ct_sns_rsp *ct_rsp; /* Issue RPA */ /* Prepare common MS IOCB */ - ms_pkt = ha->isp_ops->prep_ms_fdmi_iocb(ha, DHBA_REQ_SIZE, + ms_pkt = ha->isp_ops->prep_ms_fdmi_iocb(vha, DHBA_REQ_SIZE, DHBA_RSP_SIZE); /* Prepare CT request */ @@ -1449,28 +1455,28 @@ qla2x00_fdmi_dhba(scsi_qla_host_t *ha) ct_rsp = &ha->ct_sns->p.rsp; /* Prepare FDMI command arguments -- portname. */ - memcpy(ct_req->req.dhba.port_name, ha->port_name, WWN_SIZE); + memcpy(ct_req->req.dhba.port_name, vha->port_name, WWN_SIZE); DEBUG13(printk("%s(%ld): DHBA portname=" - "%02x%02x%02x%02x%02x%02x%02x%02x.\n", __func__, ha->host_no, + "%02x%02x%02x%02x%02x%02x%02x%02x.\n", __func__, vha->host_no, ct_req->req.dhba.port_name[0], ct_req->req.dhba.port_name[1], ct_req->req.dhba.port_name[2], ct_req->req.dhba.port_name[3], ct_req->req.dhba.port_name[4], ct_req->req.dhba.port_name[5], ct_req->req.dhba.port_name[6], ct_req->req.dhba.port_name[7])); /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): DHBA issue IOCB failed (%d).\n", - ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "DHBA") != + vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "DHBA") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { DEBUG2(printk("scsi(%ld): DHBA exiting normally.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -1483,11 +1489,11 @@ qla2x00_fdmi_dhba(scsi_qla_host_t *ha) * Returns 0 on success. */ static int -qla2x00_fdmi_rpa(scsi_qla_host_t *ha) +qla2x00_fdmi_rpa(scsi_qla_host_t *vha) { int rval, alen; uint32_t size, max_frame_size; - + struct qla_hw_data *ha = vha->hw; ms_iocb_entry_t *ms_pkt; struct ct_sns_req *ct_req; struct ct_sns_rsp *ct_rsp; @@ -1498,7 +1504,7 @@ qla2x00_fdmi_rpa(scsi_qla_host_t *ha) /* Issue RPA */ /* Prepare common MS IOCB */ /* Request size adjusted after CT preparation */ - ms_pkt = ha->isp_ops->prep_ms_fdmi_iocb(ha, 0, RPA_RSP_SIZE); + ms_pkt = ha->isp_ops->prep_ms_fdmi_iocb(vha, 0, RPA_RSP_SIZE); /* Prepare CT request */ ct_req = qla2x00_prep_ct_fdmi_req(&ha->ct_sns->p.req, RPA_CMD, @@ -1506,7 +1512,7 @@ qla2x00_fdmi_rpa(scsi_qla_host_t *ha) ct_rsp = &ha->ct_sns->p.rsp; /* Prepare FDMI command arguments -- attribute block, attributes. */ - memcpy(ct_req->req.rpa.port_name, ha->port_name, WWN_SIZE); + memcpy(ct_req->req.rpa.port_name, vha->port_name, WWN_SIZE); size = WWN_SIZE + 4; /* Attributes */ @@ -1521,8 +1527,9 @@ qla2x00_fdmi_rpa(scsi_qla_host_t *ha) eiter->a.fc4_types[2] = 0x01; size += 4 + 32; - DEBUG13(printk("%s(%ld): FC4_TYPES=%02x %02x.\n", __func__, ha->host_no, - eiter->a.fc4_types[2], eiter->a.fc4_types[1])); + DEBUG13(printk("%s(%ld): FC4_TYPES=%02x %02x.\n", __func__, + vha->host_no, eiter->a.fc4_types[2], + eiter->a.fc4_types[1])); /* Supported speed. */ eiter = (struct ct_fdmi_port_attr *) (entries + size); @@ -1544,7 +1551,7 @@ qla2x00_fdmi_rpa(scsi_qla_host_t *ha) FDMI_PORT_SPEED_1GB); size += 4 + 4; - DEBUG13(printk("%s(%ld): SUPPORTED_SPEED=%x.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): SUPPORTED_SPEED=%x.\n", __func__, vha->host_no, eiter->a.sup_speed)); /* Current speed. */ @@ -1575,7 +1582,7 @@ qla2x00_fdmi_rpa(scsi_qla_host_t *ha) } size += 4 + 4; - DEBUG13(printk("%s(%ld): CURRENT_SPEED=%x.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): CURRENT_SPEED=%x.\n", __func__, vha->host_no, eiter->a.cur_speed)); /* Max frame size. */ @@ -1588,7 +1595,7 @@ qla2x00_fdmi_rpa(scsi_qla_host_t *ha) eiter->a.max_frame_size = cpu_to_be32(max_frame_size); size += 4 + 4; - DEBUG13(printk("%s(%ld): MAX_FRAME_SIZE=%x.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): MAX_FRAME_SIZE=%x.\n", __func__, vha->host_no, eiter->a.max_frame_size)); /* OS device name. */ @@ -1600,32 +1607,32 @@ qla2x00_fdmi_rpa(scsi_qla_host_t *ha) eiter->len = cpu_to_be16(4 + alen); size += 4 + alen; - DEBUG13(printk("%s(%ld): OS_DEVICE_NAME=%s.\n", __func__, ha->host_no, + DEBUG13(printk("%s(%ld): OS_DEVICE_NAME=%s.\n", __func__, vha->host_no, eiter->a.os_dev_name)); /* Hostname. */ - if (strlen(fc_host_system_hostname(ha->host))) { + if (strlen(fc_host_system_hostname(vha->host))) { ct_req->req.rpa.attrs.count = __constant_cpu_to_be32(FDMI_PORT_ATTR_COUNT); eiter = (struct ct_fdmi_port_attr *) (entries + size); eiter->type = __constant_cpu_to_be16(FDMI_PORT_HOST_NAME); snprintf(eiter->a.host_name, sizeof(eiter->a.host_name), - "%s", fc_host_system_hostname(ha->host)); + "%s", fc_host_system_hostname(vha->host)); alen = strlen(eiter->a.host_name); alen += (alen & 3) ? (4 - (alen & 3)) : 4; eiter->len = cpu_to_be16(4 + alen); size += 4 + alen; DEBUG13(printk("%s(%ld): HOSTNAME=%s.\n", __func__, - ha->host_no, eiter->a.host_name)); + vha->host_no, eiter->a.host_name)); } /* Update MS request size. */ - qla2x00_update_ms_fdmi_iocb(ha, size + 16); + qla2x00_update_ms_fdmi_iocb(vha, size + 16); DEBUG13(printk("%s(%ld): RPA portname=" "%02x%02x%02x%02x%02x%02x%02x%02x size=%d.\n", __func__, - ha->host_no, ct_req->req.rpa.port_name[0], + vha->host_no, ct_req->req.rpa.port_name[0], ct_req->req.rpa.port_name[1], ct_req->req.rpa.port_name[2], ct_req->req.rpa.port_name[3], ct_req->req.rpa.port_name[4], ct_req->req.rpa.port_name[5], ct_req->req.rpa.port_name[6], @@ -1633,18 +1640,18 @@ qla2x00_fdmi_rpa(scsi_qla_host_t *ha) DEBUG13(qla2x00_dump_buffer(entries, size)); /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): RPA issue IOCB failed (%d).\n", - ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "RPA") != + vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RPA") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { DEBUG2(printk("scsi(%ld): RPA exiting normally.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -1657,34 +1664,28 @@ qla2x00_fdmi_rpa(scsi_qla_host_t *ha) * Returns 0 on success. */ int -qla2x00_fdmi_register(scsi_qla_host_t *ha) +qla2x00_fdmi_register(scsi_qla_host_t *vha) { int rval; - if (IS_QLA2100(ha) || IS_QLA2200(ha)) { - DEBUG2(printk("scsi(%ld): FDMI unsupported on " - "ISP2100/ISP2200.\n", ha->host_no)); - return QLA_SUCCESS; - } - - rval = qla2x00_mgmt_svr_login(ha); + rval = qla2x00_mgmt_svr_login(vha); if (rval) return rval; - rval = qla2x00_fdmi_rhba(ha); + rval = qla2x00_fdmi_rhba(vha); if (rval) { if (rval != QLA_ALREADY_REGISTERED) return rval; - rval = qla2x00_fdmi_dhba(ha); + rval = qla2x00_fdmi_dhba(vha); if (rval) return rval; - rval = qla2x00_fdmi_rhba(ha); + rval = qla2x00_fdmi_rhba(vha); if (rval) return rval; } - rval = qla2x00_fdmi_rpa(ha); + rval = qla2x00_fdmi_rpa(vha); return rval; } @@ -1697,11 +1698,11 @@ qla2x00_fdmi_register(scsi_qla_host_t *ha) * Returns 0 on success. */ int -qla2x00_gfpn_id(scsi_qla_host_t *ha, sw_info_t *list) +qla2x00_gfpn_id(scsi_qla_host_t *vha, sw_info_t *list) { int rval; uint16_t i; - + struct qla_hw_data *ha = vha->hw; ms_iocb_entry_t *ms_pkt; struct ct_sns_req *ct_req; struct ct_sns_rsp *ct_rsp; @@ -1712,7 +1713,7 @@ qla2x00_gfpn_id(scsi_qla_host_t *ha, sw_info_t *list) for (i = 0; i < MAX_FIBRE_DEVICES; i++) { /* Issue GFPN_ID */ /* Prepare common MS IOCB */ - ms_pkt = ha->isp_ops->prep_ms_iocb(ha, GFPN_ID_REQ_SIZE, + ms_pkt = ha->isp_ops->prep_ms_iocb(vha, GFPN_ID_REQ_SIZE, GFPN_ID_RSP_SIZE); /* Prepare CT request */ @@ -1726,13 +1727,13 @@ qla2x00_gfpn_id(scsi_qla_host_t *ha, sw_info_t *list) ct_req->req.port_id.port_id[2] = list[i].d_id.b.al_pa; /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): GFPN_ID issue IOCB " - "failed (%d).\n", ha->host_no, rval)); - } else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, + "failed (%d).\n", vha->host_no, rval)); + } else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "GFPN_ID") != QLA_SUCCESS) { rval = QLA_FUNCTION_FAILED; } else { @@ -1750,17 +1751,17 @@ qla2x00_gfpn_id(scsi_qla_host_t *ha, sw_info_t *list) } static inline void * -qla24xx_prep_ms_fm_iocb(scsi_qla_host_t *ha, uint32_t req_size, +qla24xx_prep_ms_fm_iocb(scsi_qla_host_t *vha, uint32_t req_size, uint32_t rsp_size) { struct ct_entry_24xx *ct_pkt; - + struct qla_hw_data *ha = vha->hw; ct_pkt = (struct ct_entry_24xx *)ha->ms_iocb; memset(ct_pkt, 0, sizeof(struct ct_entry_24xx)); ct_pkt->entry_type = CT_IOCB_TYPE; ct_pkt->entry_count = 1; - ct_pkt->nport_handle = cpu_to_le16(ha->mgmt_svr_loop_id); + ct_pkt->nport_handle = cpu_to_le16(vha->mgmt_svr_loop_id); ct_pkt->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1); ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1); @@ -1774,7 +1775,7 @@ qla24xx_prep_ms_fm_iocb(scsi_qla_host_t *ha, uint32_t req_size, ct_pkt->dseg_1_address[0] = cpu_to_le32(LSD(ha->ct_sns_dma)); ct_pkt->dseg_1_address[1] = cpu_to_le32(MSD(ha->ct_sns_dma)); ct_pkt->dseg_1_len = ct_pkt->rsp_byte_count; - ct_pkt->vp_index = ha->vp_idx; + ct_pkt->vp_index = vha->vp_idx; return ct_pkt; } @@ -1803,11 +1804,11 @@ qla24xx_prep_ct_fm_req(struct ct_sns_req *ct_req, uint16_t cmd, * Returns 0 on success. */ int -qla2x00_gpsc(scsi_qla_host_t *ha, sw_info_t *list) +qla2x00_gpsc(scsi_qla_host_t *vha, sw_info_t *list) { int rval; uint16_t i; - + struct qla_hw_data *ha = vha->hw; ms_iocb_entry_t *ms_pkt; struct ct_sns_req *ct_req; struct ct_sns_rsp *ct_rsp; @@ -1817,14 +1818,14 @@ qla2x00_gpsc(scsi_qla_host_t *ha, sw_info_t *list) if (!ha->flags.gpsc_supported) return QLA_FUNCTION_FAILED; - rval = qla2x00_mgmt_svr_login(ha); + rval = qla2x00_mgmt_svr_login(vha); if (rval) return rval; for (i = 0; i < MAX_FIBRE_DEVICES; i++) { /* Issue GFPN_ID */ /* Prepare common MS IOCB */ - ms_pkt = qla24xx_prep_ms_fm_iocb(ha, GPSC_REQ_SIZE, + ms_pkt = qla24xx_prep_ms_fm_iocb(vha, GPSC_REQ_SIZE, GPSC_RSP_SIZE); /* Prepare CT request */ @@ -1837,13 +1838,13 @@ qla2x00_gpsc(scsi_qla_host_t *ha, sw_info_t *list) WWN_SIZE); /* Execute MS IOCB */ - rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma, + rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma, sizeof(ms_iocb_entry_t)); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3(printk("scsi(%ld): GPSC issue IOCB " - "failed (%d).\n", ha->host_no, rval)); - } else if ((rval = qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, + "failed (%d).\n", vha->host_no, rval)); + } else if ((rval = qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "GPSC")) != QLA_SUCCESS) { /* FM command unsupported? */ if (rval == QLA_INVALID_COMMAND && @@ -1853,7 +1854,7 @@ qla2x00_gpsc(scsi_qla_host_t *ha, sw_info_t *list) CT_REASON_COMMAND_UNSUPPORTED)) { DEBUG2(printk("scsi(%ld): GPSC command " "unsupported, disabling query...\n", - ha->host_no)); + vha->host_no)); ha->flags.gpsc_supported = 0; rval = QLA_FUNCTION_FAILED; break; @@ -1878,7 +1879,7 @@ qla2x00_gpsc(scsi_qla_host_t *ha, sw_info_t *list) DEBUG2_3(printk("scsi(%ld): GPSC ext entry - " "fpn %02x%02x%02x%02x%02x%02x%02x%02x speeds=%04x " - "speed=%04x.\n", ha->host_no, + "speed=%04x.\n", vha->host_no, list[i].fabric_port_name[0], list[i].fabric_port_name[1], list[i].fabric_port_name[2], diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 4218f20..52ed56e 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -5,6 +5,7 @@ * See LICENSE.qla2xxx for copyright and licensing details. */ #include "qla_def.h" +#include "qla_gbl.h" #include <linux/delay.h> #include <linux/vmalloc.h> @@ -21,7 +22,6 @@ static int qla2x00_isp_firmware(scsi_qla_host_t *); static void qla2x00_resize_request_q(scsi_qla_host_t *); static int qla2x00_setup_chip(scsi_qla_host_t *); -static void qla2x00_init_response_q_entries(scsi_qla_host_t *); static int qla2x00_init_rings(scsi_qla_host_t *); static int qla2x00_fw_ready(scsi_qla_host_t *); static int qla2x00_configure_hba(scsi_qla_host_t *); @@ -35,10 +35,11 @@ static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *, static int qla2x00_restart_isp(scsi_qla_host_t *); -static int qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev); +static int qla2x00_find_new_loop_id(scsi_qla_host_t *, fc_port_t *); static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *); static int qla84xx_init_chip(scsi_qla_host_t *); +static int qla25xx_init_queues(struct qla_hw_data *); /****************************************************************************/ /* QLogic ISP2x00 Hardware Support Functions. */ @@ -55,77 +56,81 @@ static int qla84xx_init_chip(scsi_qla_host_t *); * 0 = success */ int -qla2x00_initialize_adapter(scsi_qla_host_t *ha) +qla2x00_initialize_adapter(scsi_qla_host_t *vha) { int rval; - + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; /* Clear adapter flags. */ - ha->flags.online = 0; - ha->flags.reset_active = 0; - atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); - atomic_set(&ha->loop_state, LOOP_DOWN); - ha->device_flags = DFLG_NO_CABLE; - ha->dpc_flags = 0; - ha->flags.management_server_logged_in = 0; - ha->marker_needed = 0; + vha->flags.online = 0; + vha->flags.reset_active = 0; + atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); + atomic_set(&vha->loop_state, LOOP_DOWN); + vha->device_flags = DFLG_NO_CABLE; + vha->dpc_flags = 0; + vha->flags.management_server_logged_in = 0; + vha->marker_needed = 0; ha->mbx_flags = 0; ha->isp_abort_cnt = 0; ha->beacon_blink_led = 0; - set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags); + set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); + + set_bit(0, ha->req_qid_map); + set_bit(0, ha->rsp_qid_map); qla_printk(KERN_INFO, ha, "Configuring PCI space...\n"); - rval = ha->isp_ops->pci_config(ha); + rval = ha->isp_ops->pci_config(vha); if (rval) { DEBUG2(printk("scsi(%ld): Unable to configure PCI space.\n", - ha->host_no)); + vha->host_no)); return (rval); } - ha->isp_ops->reset_chip(ha); + ha->isp_ops->reset_chip(vha); - rval = qla2xxx_get_flash_info(ha); + rval = qla2xxx_get_flash_info(vha); if (rval) { DEBUG2(printk("scsi(%ld): Unable to validate FLASH data.\n", - ha->host_no)); + vha->host_no)); return (rval); } - ha->isp_ops->get_flash_version(ha, ha->request_ring); + ha->isp_ops->get_flash_version(vha, req->ring); qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n"); - ha->isp_ops->nvram_config(ha); + ha->isp_ops->nvram_config(vha); if (ha->flags.disable_serdes) { /* Mask HBA via NVRAM settings? */ qla_printk(KERN_INFO, ha, "Masking HBA WWPN " "%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n", - ha->port_name[0], ha->port_name[1], - ha->port_name[2], ha->port_name[3], - ha->port_name[4], ha->port_name[5], - ha->port_name[6], ha->port_name[7]); + vha->port_name[0], vha->port_name[1], + vha->port_name[2], vha->port_name[3], + vha->port_name[4], vha->port_name[5], + vha->port_name[6], vha->port_name[7]); return QLA_FUNCTION_FAILED; } qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n"); - if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) { - rval = ha->isp_ops->chip_diag(ha); + if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) { + rval = ha->isp_ops->chip_diag(vha); if (rval) return (rval); - rval = qla2x00_setup_chip(ha); + rval = qla2x00_setup_chip(vha); if (rval) return (rval); } if (IS_QLA84XX(ha)) { - ha->cs84xx = qla84xx_get_chip(ha); + ha->cs84xx = qla84xx_get_chip(vha); if (!ha->cs84xx) { qla_printk(KERN_ERR, ha, "Unable to configure ISP84XX.\n"); return QLA_FUNCTION_FAILED; } } - rval = qla2x00_init_rings(ha); + rval = qla2x00_init_rings(vha); return (rval); } @@ -137,10 +142,11 @@ qla2x00_initialize_adapter(scsi_qla_host_t *ha) * Returns 0 on success. */ int -qla2100_pci_config(scsi_qla_host_t *ha) +qla2100_pci_config(scsi_qla_host_t *vha) { uint16_t w; unsigned long flags; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; pci_set_master(ha->pdev); @@ -167,11 +173,12 @@ qla2100_pci_config(scsi_qla_host_t *ha) * Returns 0 on success. */ int -qla2300_pci_config(scsi_qla_host_t *ha) +qla2300_pci_config(scsi_qla_host_t *vha) { uint16_t w; unsigned long flags = 0; uint32_t cnt; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; pci_set_master(ha->pdev); @@ -248,10 +255,11 @@ qla2300_pci_config(scsi_qla_host_t *ha) * Returns 0 on success. */ int -qla24xx_pci_config(scsi_qla_host_t *ha) +qla24xx_pci_config(scsi_qla_host_t *vha) { uint16_t w; unsigned long flags = 0; + struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; pci_set_master(ha->pdev); @@ -291,9 +299,10 @@ qla24xx_pci_config(scsi_qla_host_t *ha) * Returns 0 on success. */ int -qla25xx_pci_config(scsi_qla_host_t *ha) +qla25xx_pci_config(scsi_qla_host_t *vha) { uint16_t w; + struct qla_hw_data *ha = vha->hw; pci_set_master(ha->pdev); pci_try_set_mwi(ha->pdev); @@ -321,32 +330,33 @@ qla25xx_pci_config(scsi_qla_host_t *ha) * Returns 0 on success. */ static int -qla2x00_isp_firmware(scsi_qla_host_t *ha) +qla2x00_isp_firmware(scsi_qla_host_t *vha) { int rval; uint16_t loop_id, topo, sw_cap; uint8_t domain, area, al_pa; + struct qla_hw_data *ha = vha->hw; /* Assume loading risc code */ rval = QLA_FUNCTION_FAILED; if (ha->flags.disable_risc_code_load) { DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n", - ha->host_no)); + vha->host_no)); qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n"); /* Verify checksum of loaded RISC code. */ - rval = qla2x00_verify_checksum(ha, ha->fw_srisc_address); + rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address); if (rval == QLA_SUCCESS) { /* And, verify we are not in ROM code. */ - rval = qla2x00_get_adapter_id(ha, &loop_id, &al_pa, + rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa, &area, &domain, &topo, &sw_cap); } } if (rval) { DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n", - ha->host_no)); + vha->host_no)); } return (rval); @@ -359,9 +369,10 @@ qla2x00_isp_firmware(scsi_qla_host_t *ha) * Returns 0 on success. */ void -qla2x00_reset_chip(scsi_qla_host_t *ha) +qla2x00_reset_chip(scsi_qla_host_t *vha) { unsigned long flags = 0; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; uint32_t cnt; uint16_t cmd; @@ -499,10 +510,11 @@ qla2x00_reset_chip(scsi_qla_host_t *ha) * Returns 0 on success. */ static inline void -qla24xx_reset_risc(scsi_qla_host_t *ha) +qla24xx_reset_risc(scsi_qla_host_t *vha) { int hw_evt = 0; unsigned long flags = 0; + struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; uint32_t cnt, d2; uint16_t wd; @@ -541,7 +553,7 @@ qla24xx_reset_risc(scsi_qla_host_t *ha) barrier(); } if (cnt == 0 || hw_evt) - qla2xxx_hw_event_log(ha, HW_EVENT_RESET_ERR, + qla2xxx_hw_event_log(vha, HW_EVENT_RESET_ERR, RD_REG_WORD(®->mailbox1), RD_REG_WORD(®->mailbox2), RD_REG_WORD(®->mailbox3)); @@ -571,12 +583,13 @@ qla24xx_reset_risc(scsi_qla_host_t *ha) * Returns 0 on success. */ void -qla24xx_reset_chip(scsi_qla_host_t *ha) +qla24xx_reset_chip(scsi_qla_host_t *vha) { + struct qla_hw_data *ha = vha->hw; ha->isp_ops->disable_intrs(ha); /* Perform RISC reset. */ - qla24xx_reset_risc(ha); + qla24xx_reset_risc(vha); } /** @@ -586,20 +599,22 @@ qla24xx_reset_chip(scsi_qla_host_t *ha) * Returns 0 on success. */ int -qla2x00_chip_diag(scsi_qla_host_t *ha) +qla2x00_chip_diag(scsi_qla_host_t *vha) { int rval; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; unsigned long flags = 0; uint16_t data; uint32_t cnt; uint16_t mb[5]; + struct req_que *req = ha->req_q_map[0]; /* Assume a failed state */ rval = QLA_FUNCTION_FAILED; DEBUG3(printk("scsi(%ld): Testing device at %lx.\n", - ha->host_no, (u_long)®->flash_address)); + vha->host_no, (u_long)®->flash_address)); spin_lock_irqsave(&ha->hardware_lock, flags); @@ -662,17 +677,17 @@ qla2x00_chip_diag(scsi_qla_host_t *ha) ha->product_id[3] = mb[4]; /* Adjust fw RISC transfer size */ - if (ha->request_q_length > 1024) + if (req->length > 1024) ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024; else ha->fw_transfer_size = REQUEST_ENTRY_SIZE * - ha->request_q_length; + req->length; if (IS_QLA2200(ha) && RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) { /* Limit firmware transfer size with a 2200A */ DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n", - ha->host_no)); + vha->host_no)); ha->device_type |= DT_ISP2200A; ha->fw_transfer_size = 128; @@ -681,11 +696,11 @@ qla2x00_chip_diag(scsi_qla_host_t *ha) /* Wrap Incoming Mailboxes Test. */ spin_unlock_irqrestore(&ha->hardware_lock, flags); - DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no)); - rval = qla2x00_mbx_reg_test(ha); + DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", vha->host_no)); + rval = qla2x00_mbx_reg_test(vha); if (rval) { DEBUG(printk("scsi(%ld): Failed mailbox send register test\n", - ha->host_no)); + vha->host_no)); qla_printk(KERN_WARNING, ha, "Failed mailbox send register test\n"); } @@ -698,7 +713,7 @@ qla2x00_chip_diag(scsi_qla_host_t *ha) chip_diag_failed: if (rval) DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED " - "****\n", ha->host_no)); + "****\n", vha->host_no)); spin_unlock_irqrestore(&ha->hardware_lock, flags); @@ -712,19 +727,21 @@ chip_diag_failed: * Returns 0 on success. */ int -qla24xx_chip_diag(scsi_qla_host_t *ha) +qla24xx_chip_diag(scsi_qla_host_t *vha) { int rval; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; /* Perform RISC reset. */ - qla24xx_reset_risc(ha); + qla24xx_reset_risc(vha); - ha->fw_transfer_size = REQUEST_ENTRY_SIZE * ha->request_q_length; + ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length; - rval = qla2x00_mbx_reg_test(ha); + rval = qla2x00_mbx_reg_test(vha); if (rval) { DEBUG(printk("scsi(%ld): Failed mailbox send register test\n", - ha->host_no)); + vha->host_no)); qla_printk(KERN_WARNING, ha, "Failed mailbox send register test\n"); } else { @@ -736,13 +753,16 @@ qla24xx_chip_diag(scsi_qla_host_t *ha) } void -qla2x00_alloc_fw_dump(scsi_qla_host_t *ha) +qla2x00_alloc_fw_dump(scsi_qla_host_t *vha) { int rval; uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size, - eft_size, fce_size; + eft_size, fce_size, mq_size; dma_addr_t tc_dma; void *tc; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; + struct rsp_que *rsp = ha->rsp_q_map[0]; if (ha->fw_dump) { qla_printk(KERN_WARNING, ha, @@ -751,7 +771,7 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *ha) } ha->fw_dumped = 0; - fixed_size = mem_size = eft_size = fce_size = 0; + fixed_size = mem_size = eft_size = fce_size = mq_size = 0; if (IS_QLA2100(ha) || IS_QLA2200(ha)) { fixed_size = sizeof(struct qla2100_fw_dump); } else if (IS_QLA23XX(ha)) { @@ -760,10 +780,12 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *ha) sizeof(uint16_t); } else if (IS_FWI2_CAPABLE(ha)) { fixed_size = IS_QLA25XX(ha) ? - offsetof(struct qla25xx_fw_dump, ext_mem): - offsetof(struct qla24xx_fw_dump, ext_mem); + offsetof(struct qla25xx_fw_dump, ext_mem) : + offsetof(struct qla24xx_fw_dump, ext_mem); mem_size = (ha->fw_memory_size - 0x100000 + 1) * sizeof(uint32_t); + if (ha->mqenable) + mq_size = sizeof(struct qla2xxx_mq_chain); /* Allocate memory for Fibre Channel Event Buffer. */ if (!IS_QLA25XX(ha)) @@ -778,7 +800,7 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *ha) } memset(tc, 0, FCE_SIZE); - rval = qla2x00_enable_fce_trace(ha, tc_dma, FCE_NUM_BUFFERS, + rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS, ha->fce_mb, &ha->fce_bufs); if (rval) { qla_printk(KERN_WARNING, ha, "Unable to initialize " @@ -807,7 +829,7 @@ try_eft: } memset(tc, 0, EFT_SIZE); - rval = qla2x00_enable_eft_trace(ha, tc_dma, EFT_NUM_BUFFERS); + rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS); if (rval) { qla_printk(KERN_WARNING, ha, "Unable to initialize " "EFT (%d).\n", rval); @@ -824,12 +846,12 @@ try_eft: ha->eft = tc; } cont_alloc: - req_q_size = ha->request_q_length * sizeof(request_t); - rsp_q_size = ha->response_q_length * sizeof(response_t); + req_q_size = req->length * sizeof(request_t); + rsp_q_size = rsp->length * sizeof(response_t); dump_size = offsetof(struct qla2xxx_fw_dump, isp); dump_size += fixed_size + mem_size + req_q_size + rsp_q_size + - eft_size + fce_size; + mq_size + eft_size + fce_size; ha->fw_dump = vmalloc(dump_size); if (!ha->fw_dump) { @@ -844,7 +866,6 @@ cont_alloc: } return; } - qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware dump...\n", dump_size / 1024); @@ -875,27 +896,29 @@ cont_alloc: * Returns 0 on success. */ static void -qla2x00_resize_request_q(scsi_qla_host_t *ha) +qla2x00_resize_request_q(scsi_qla_host_t *vha) { int rval; uint16_t fw_iocb_cnt = 0; uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM; dma_addr_t request_dma; request_t *request_ring; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; /* Valid only on recent ISPs. */ if (IS_QLA2100(ha) || IS_QLA2200(ha)) return; /* Retrieve IOCB counts available to the firmware. */ - rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt, - &ha->max_npiv_vports); + rval = qla2x00_get_resource_cnts(vha, NULL, NULL, NULL, &fw_iocb_cnt, + &ha->max_npiv_vports); if (rval) return; /* No point in continuing if current settings are sufficient. */ if (fw_iocb_cnt < 1024) return; - if (ha->request_q_length >= request_q_length) + if (req->length >= request_q_length) return; /* Attempt to claim larger area for request queue. */ @@ -909,17 +932,17 @@ qla2x00_resize_request_q(scsi_qla_host_t *ha) qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n", (ha->fw_memory_size + 1) / 1024); qla_printk(KERN_INFO, ha, "Resizing request queue depth " - "(%d -> %d)...\n", ha->request_q_length, request_q_length); + "(%d -> %d)...\n", req->length, request_q_length); /* Clear old allocations. */ dma_free_coherent(&ha->pdev->dev, - (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring, - ha->request_dma); + (req->length + 1) * sizeof(request_t), req->ring, + req->dma); /* Begin using larger queue. */ - ha->request_q_length = request_q_length; - ha->request_ring = request_ring; - ha->request_dma = request_dma; + req->length = request_q_length; + req->ring = request_ring; + req->dma = request_dma; } /** @@ -929,10 +952,11 @@ qla2x00_resize_request_q(scsi_qla_host_t *ha) * Returns 0 on success. */ static int -qla2x00_setup_chip(scsi_qla_host_t *ha) +qla2x00_setup_chip(scsi_qla_host_t *vha) { int rval; uint32_t srisc_address = 0; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; unsigned long flags; @@ -945,28 +969,27 @@ qla2x00_setup_chip(scsi_qla_host_t *ha) } /* Load firmware sequences */ - rval = ha->isp_ops->load_risc(ha, &srisc_address); + rval = ha->isp_ops->load_risc(vha, &srisc_address); if (rval == QLA_SUCCESS) { DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC " - "code.\n", ha->host_no)); + "code.\n", vha->host_no)); - rval = qla2x00_verify_checksum(ha, srisc_address); + rval = qla2x00_verify_checksum(vha, srisc_address); if (rval == QLA_SUCCESS) { /* Start firmware execution. */ DEBUG(printk("scsi(%ld): Checksum OK, start " - "firmware.\n", ha->host_no)); + "firmware.\n", vha->host_no)); - rval = qla2x00_execute_fw(ha, srisc_address); + rval = qla2x00_execute_fw(vha, srisc_address); /* Retrieve firmware information. */ if (rval == QLA_SUCCESS && ha->fw_major_version == 0) { - qla2x00_get_fw_version(ha, + qla2x00_get_fw_version(vha, &ha->fw_major_version, &ha->fw_minor_version, &ha->fw_subminor_version, &ha->fw_attributes, &ha->fw_memory_size); ha->flags.npiv_supported = 0; - if ((IS_QLA24XX(ha) || IS_QLA25XX(ha) || - IS_QLA84XX(ha)) && + if (IS_QLA2XXX_MIDTYPE(ha) && (ha->fw_attributes & BIT_2)) { ha->flags.npiv_supported = 1; if ((!ha->max_npiv_vports) || @@ -975,15 +998,15 @@ qla2x00_setup_chip(scsi_qla_host_t *ha) ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1; } - qla2x00_resize_request_q(ha); + qla2x00_resize_request_q(vha); if (ql2xallocfwdump) - qla2x00_alloc_fw_dump(ha); + qla2x00_alloc_fw_dump(vha); } } else { DEBUG2(printk(KERN_INFO "scsi(%ld): ISP Firmware failed checksum.\n", - ha->host_no)); + vha->host_no)); } } @@ -1002,7 +1025,7 @@ qla2x00_setup_chip(scsi_qla_host_t *ha) if (rval) { DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n", - ha->host_no)); + vha->host_no)); } return (rval); @@ -1017,14 +1040,14 @@ qla2x00_setup_chip(scsi_qla_host_t *ha) * * Returns 0 on success. */ -static void -qla2x00_init_response_q_entries(scsi_qla_host_t *ha) +void +qla2x00_init_response_q_entries(struct rsp_que *rsp) { uint16_t cnt; response_t *pkt; - pkt = ha->response_ring_ptr; - for (cnt = 0; cnt < ha->response_q_length; cnt++) { + pkt = rsp->ring_ptr; + for (cnt = 0; cnt < rsp->length; cnt++) { pkt->signature = RESPONSE_PROCESSED; pkt++; } @@ -1038,19 +1061,20 @@ qla2x00_init_response_q_entries(scsi_qla_host_t *ha) * Returns 0 on success. */ void -qla2x00_update_fw_options(scsi_qla_host_t *ha) +qla2x00_update_fw_options(scsi_qla_host_t *vha) { uint16_t swing, emphasis, tx_sens, rx_sens; + struct qla_hw_data *ha = vha->hw; memset(ha->fw_options, 0, sizeof(ha->fw_options)); - qla2x00_get_fw_options(ha, ha->fw_options); + qla2x00_get_fw_options(vha, ha->fw_options); if (IS_QLA2100(ha) || IS_QLA2200(ha)) return; /* Serial Link options. */ DEBUG3(printk("scsi(%ld): Serial link options:\n", - ha->host_no)); + vha->host_no)); DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options, sizeof(ha->fw_seriallink_options))); @@ -1108,19 +1132,20 @@ qla2x00_update_fw_options(scsi_qla_host_t *ha) ha->fw_options[2] |= BIT_13; /* Update firmware options. */ - qla2x00_set_fw_options(ha, ha->fw_options); + qla2x00_set_fw_options(vha, ha->fw_options); } void -qla24xx_update_fw_options(scsi_qla_host_t *ha) +qla24xx_update_fw_options(scsi_qla_host_t *vha) { int rval; + struct qla_hw_data *ha = vha->hw; /* Update Serial Link options. */ if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0) return; - rval = qla2x00_set_serdes_params(ha, + rval = qla2x00_set_serdes_params(vha, le16_to_cpu(ha->fw_seriallink_options24[1]), le16_to_cpu(ha->fw_seriallink_options24[2]), le16_to_cpu(ha->fw_seriallink_options24[3])); @@ -1131,19 +1156,22 @@ qla24xx_update_fw_options(scsi_qla_host_t *ha) } void -qla2x00_config_rings(struct scsi_qla_host *ha) +qla2x00_config_rings(struct scsi_qla_host *vha) { + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; + struct req_que *req = ha->req_q_map[0]; + struct rsp_que *rsp = ha->rsp_q_map[0]; /* Setup ring parameters in initialization control block. */ ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0); ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0); - ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length); - ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length); - ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma)); - ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma)); - ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma)); - ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma)); + ha->init_cb->request_q_length = cpu_to_le16(req->length); + ha->init_cb->response_q_length = cpu_to_le16(rsp->length); + ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(req->dma)); + ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(req->dma)); + ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma)); + ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma)); WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0); WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0); @@ -1153,27 +1181,62 @@ qla2x00_config_rings(struct scsi_qla_host *ha) } void -qla24xx_config_rings(struct scsi_qla_host *ha) +qla24xx_config_rings(struct scsi_qla_host *vha) { - struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; + struct qla_hw_data *ha = vha->hw; + device_reg_t __iomem *reg = ISP_QUE_REG(ha, 0); + struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; + struct qla_msix_entry *msix; struct init_cb_24xx *icb; + uint16_t rid = 0; + struct req_que *req = ha->req_q_map[0]; + struct rsp_que *rsp = ha->rsp_q_map[0]; - /* Setup ring parameters in initialization control block. */ +/* Setup ring parameters in initialization control block. */ icb = (struct init_cb_24xx *)ha->init_cb; icb->request_q_outpointer = __constant_cpu_to_le16(0); icb->response_q_inpointer = __constant_cpu_to_le16(0); - icb->request_q_length = cpu_to_le16(ha->request_q_length); - icb->response_q_length = cpu_to_le16(ha->response_q_length); - icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma)); - icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma)); - icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma)); - icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma)); - - WRT_REG_DWORD(®->req_q_in, 0); - WRT_REG_DWORD(®->req_q_out, 0); - WRT_REG_DWORD(®->rsp_q_in, 0); - WRT_REG_DWORD(®->rsp_q_out, 0); - RD_REG_DWORD(®->rsp_q_out); + icb->request_q_length = cpu_to_le16(req->length); + icb->response_q_length = cpu_to_le16(rsp->length); + icb->request_q_address[0] = cpu_to_le32(LSD(req->dma)); + icb->request_q_address[1] = cpu_to_le32(MSD(req->dma)); + icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma)); + icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma)); + + if (ha->mqenable) { + icb->qos = __constant_cpu_to_le16(QLA_DEFAULT_QUE_QOS); + icb->rid = __constant_cpu_to_le16(rid); + if (ha->flags.msix_enabled) { + msix = &ha->msix_entries[1]; + DEBUG2_17(printk(KERN_INFO + "Reistering vector 0x%x for base que\n", msix->entry)); + icb->msix = cpu_to_le16(msix->entry); + } + /* Use alternate PCI bus number */ + if (MSB(rid)) + icb->firmware_options_2 |= + __constant_cpu_to_le32(BIT_19); + /* Use alternate PCI devfn */ + if (LSB(rid)) + icb->firmware_options_2 |= + __constant_cpu_to_le32(BIT_18); + + icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_22); + icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_23); + ha->rsp_q_map[0]->options = icb->firmware_options_2; + + WRT_REG_DWORD(®->isp25mq.req_q_in, 0); + WRT_REG_DWORD(®->isp25mq.req_q_out, 0); + WRT_REG_DWORD(®->isp25mq.rsp_q_in, 0); + WRT_REG_DWORD(®->isp25mq.rsp_q_out, 0); + } else { + WRT_REG_DWORD(®->isp24.req_q_in, 0); + WRT_REG_DWORD(®->isp24.req_q_out, 0); + WRT_REG_DWORD(®->isp24.rsp_q_in, 0); + WRT_REG_DWORD(®->isp24.rsp_q_out, 0); + } + /* PCI posting */ + RD_REG_DWORD(&ioreg->hccr); } /** @@ -1186,11 +1249,14 @@ qla24xx_config_rings(struct scsi_qla_host *ha) * Returns 0 on success. */ static int -qla2x00_init_rings(scsi_qla_host_t *ha) +qla2x00_init_rings(scsi_qla_host_t *vha) { int rval; unsigned long flags = 0; int cnt; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; + struct rsp_que *rsp = ha->rsp_q_map[0]; struct mid_init_cb_24xx *mid_init_cb = (struct mid_init_cb_24xx *) ha->init_cb; @@ -1198,45 +1264,45 @@ qla2x00_init_rings(scsi_qla_host_t *ha) /* Clear outstanding commands array. */ for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) - ha->outstanding_cmds[cnt] = NULL; + req->outstanding_cmds[cnt] = NULL; - ha->current_outstanding_cmd = 0; + req->current_outstanding_cmd = 0; /* Clear RSCN queue. */ - ha->rscn_in_ptr = 0; - ha->rscn_out_ptr = 0; + vha->rscn_in_ptr = 0; + vha->rscn_out_ptr = 0; /* Initialize firmware. */ - ha->request_ring_ptr = ha->request_ring; - ha->req_ring_index = 0; - ha->req_q_cnt = ha->request_q_length; - ha->response_ring_ptr = ha->response_ring; - ha->rsp_ring_index = 0; + req->ring_ptr = req->ring; + req->ring_index = 0; + req->cnt = req->length; + rsp->ring_ptr = rsp->ring; + rsp->ring_index = 0; /* Initialize response queue entries */ - qla2x00_init_response_q_entries(ha); + qla2x00_init_response_q_entries(rsp); - ha->isp_ops->config_rings(ha); + ha->isp_ops->config_rings(vha); spin_unlock_irqrestore(&ha->hardware_lock, flags); /* Update any ISP specific firmware options before initialization. */ - ha->isp_ops->update_fw_options(ha); + ha->isp_ops->update_fw_options(vha); - DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no)); + DEBUG(printk("scsi(%ld): Issue init firmware.\n", vha->host_no)); if (ha->flags.npiv_supported) mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports); mid_init_cb->options = __constant_cpu_to_le16(BIT_1); - rval = qla2x00_init_firmware(ha, ha->init_cb_size); + rval = qla2x00_init_firmware(vha, ha->init_cb_size); if (rval) { DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n", - ha->host_no)); + vha->host_no)); } else { DEBUG3(printk("scsi(%ld): Init firmware -- success.\n", - ha->host_no)); + vha->host_no)); } return (rval); @@ -1249,13 +1315,14 @@ qla2x00_init_rings(scsi_qla_host_t *ha) * Returns 0 on success. */ static int -qla2x00_fw_ready(scsi_qla_host_t *ha) +qla2x00_fw_ready(scsi_qla_host_t *vha) { int rval; unsigned long wtime, mtime, cs84xx_time; uint16_t min_wait; /* Minimum wait time if loop is down */ uint16_t wait_time; /* Wait time if loop is coming ready */ uint16_t state[3]; + struct qla_hw_data *ha = vha->hw; rval = QLA_SUCCESS; @@ -1277,29 +1344,29 @@ qla2x00_fw_ready(scsi_qla_host_t *ha) wtime = jiffies + (wait_time * HZ); /* Wait for ISP to finish LIP */ - if (!ha->flags.init_done) + if (!vha->flags.init_done) qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n"); DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n", - ha->host_no)); + vha->host_no)); do { - rval = qla2x00_get_firmware_state(ha, state); + rval = qla2x00_get_firmware_state(vha, state); if (rval == QLA_SUCCESS) { if (state[0] < FSTATE_LOSS_OF_SYNC) { - ha->device_flags &= ~DFLG_NO_CABLE; + vha->device_flags &= ~DFLG_NO_CABLE; } if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) { DEBUG16(printk("scsi(%ld): fw_state=%x " - "84xx=%x.\n", ha->host_no, state[0], + "84xx=%x.\n", vha->host_no, state[0], state[2])); if ((state[2] & FSTATE_LOGGED_IN) && (state[2] & FSTATE_WAITING_FOR_VERIFY)) { DEBUG16(printk("scsi(%ld): Sending " - "verify iocb.\n", ha->host_no)); + "verify iocb.\n", vha->host_no)); cs84xx_time = jiffies; - rval = qla84xx_init_chip(ha); + rval = qla84xx_init_chip(vha); if (rval != QLA_SUCCESS) break; @@ -1309,13 +1376,13 @@ qla2x00_fw_ready(scsi_qla_host_t *ha) mtime += cs84xx_time; DEBUG16(printk("scsi(%ld): Increasing " "wait time by %ld. New time %ld\n", - ha->host_no, cs84xx_time, wtime)); + vha->host_no, cs84xx_time, wtime)); } } else if (state[0] == FSTATE_READY) { DEBUG(printk("scsi(%ld): F/W Ready - OK \n", - ha->host_no)); + vha->host_no)); - qla2x00_get_retry_cnt(ha, &ha->retry_count, + qla2x00_get_retry_cnt(vha, &ha->retry_count, &ha->login_timeout, &ha->r_a_tov); rval = QLA_SUCCESS; @@ -1324,7 +1391,7 @@ qla2x00_fw_ready(scsi_qla_host_t *ha) rval = QLA_FUNCTION_FAILED; - if (atomic_read(&ha->loop_down_timer) && + if (atomic_read(&vha->loop_down_timer) && state[0] != FSTATE_READY) { /* Loop down. Timeout on min_wait for states * other than Wait for Login. @@ -1333,7 +1400,7 @@ qla2x00_fw_ready(scsi_qla_host_t *ha) qla_printk(KERN_INFO, ha, "Cable is unplugged...\n"); - ha->device_flags |= DFLG_NO_CABLE; + vha->device_flags |= DFLG_NO_CABLE; break; } } @@ -1350,15 +1417,15 @@ qla2x00_fw_ready(scsi_qla_host_t *ha) msleep(500); DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n", - ha->host_no, state[0], jiffies)); + vha->host_no, state[0], jiffies)); } while (1); DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n", - ha->host_no, state[0], jiffies)); + vha->host_no, state[0], jiffies)); if (rval) { DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n", - ha->host_no)); + vha->host_no)); } return (rval); @@ -1378,7 +1445,7 @@ qla2x00_fw_ready(scsi_qla_host_t *ha) * Kernel context. */ static int -qla2x00_configure_hba(scsi_qla_host_t *ha) +qla2x00_configure_hba(scsi_qla_host_t *vha) { int rval; uint16_t loop_id; @@ -1388,19 +1455,20 @@ qla2x00_configure_hba(scsi_qla_host_t *ha) uint8_t area; uint8_t domain; char connect_type[22]; + struct qla_hw_data *ha = vha->hw; /* Get host addresses. */ - rval = qla2x00_get_adapter_id(ha, + rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa, &area, &domain, &topo, &sw_cap); if (rval != QLA_SUCCESS) { - if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) || + if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) || (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) { DEBUG2(printk("%s(%ld) Loop is in a transition state\n", - __func__, ha->host_no)); + __func__, vha->host_no)); } else { qla_printk(KERN_WARNING, ha, "ERROR -- Unable to get host loop ID.\n"); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); } return (rval); } @@ -1411,7 +1479,7 @@ qla2x00_configure_hba(scsi_qla_host_t *ha) return (QLA_FUNCTION_FAILED); } - ha->loop_id = loop_id; + vha->loop_id = loop_id; /* initialize */ ha->min_external_loopid = SNS_FIRST_LOOP_ID; @@ -1421,14 +1489,14 @@ qla2x00_configure_hba(scsi_qla_host_t *ha) switch (topo) { case 0: DEBUG3(printk("scsi(%ld): HBA in NL topology.\n", - ha->host_no)); + vha->host_no)); ha->current_topology = ISP_CFG_NL; strcpy(connect_type, "(Loop)"); break; case 1: DEBUG3(printk("scsi(%ld): HBA in FL topology.\n", - ha->host_no)); + vha->host_no)); ha->switch_cap = sw_cap; ha->current_topology = ISP_CFG_FL; strcpy(connect_type, "(FL_Port)"); @@ -1436,7 +1504,7 @@ qla2x00_configure_hba(scsi_qla_host_t *ha) case 2: DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n", - ha->host_no)); + vha->host_no)); ha->operating_mode = P2P; ha->current_topology = ISP_CFG_N; strcpy(connect_type, "(N_Port-to-N_Port)"); @@ -1444,7 +1512,7 @@ qla2x00_configure_hba(scsi_qla_host_t *ha) case 3: DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n", - ha->host_no)); + vha->host_no)); ha->switch_cap = sw_cap; ha->operating_mode = P2P; ha->current_topology = ISP_CFG_F; @@ -1454,7 +1522,7 @@ qla2x00_configure_hba(scsi_qla_host_t *ha) default: DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. " "Using NL.\n", - ha->host_no, topo)); + vha->host_no, topo)); ha->current_topology = ISP_CFG_NL; strcpy(connect_type, "(Loop)"); break; @@ -1462,29 +1530,31 @@ qla2x00_configure_hba(scsi_qla_host_t *ha) /* Save Host port and loop ID. */ /* byte order - Big Endian */ - ha->d_id.b.domain = domain; - ha->d_id.b.area = area; - ha->d_id.b.al_pa = al_pa; + vha->d_id.b.domain = domain; + vha->d_id.b.area = area; + vha->d_id.b.al_pa = al_pa; - if (!ha->flags.init_done) + if (!vha->flags.init_done) qla_printk(KERN_INFO, ha, "Topology - %s, Host Loop address 0x%x\n", - connect_type, ha->loop_id); + connect_type, vha->loop_id); if (rval) { - DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no)); + DEBUG2_3(printk("scsi(%ld): FAILED.\n", vha->host_no)); } else { - DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no)); + DEBUG3(printk("scsi(%ld): exiting normally.\n", vha->host_no)); } return(rval); } static inline void -qla2x00_set_model_info(scsi_qla_host_t *ha, uint8_t *model, size_t len, char *def) +qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len, + char *def) { char *st, *en; uint16_t index; + struct qla_hw_data *ha = vha->hw; if (memcmp(model, BINZERO, len) != 0) { strncpy(ha->model_number, model, len); @@ -1516,16 +1586,17 @@ qla2x00_set_model_info(scsi_qla_host_t *ha, uint8_t *model, size_t len, char *de } } if (IS_FWI2_CAPABLE(ha)) - qla2xxx_get_vpd_field(ha, "\x82", ha->model_desc, + qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc, sizeof(ha->model_desc)); } /* On sparc systems, obtain port and node WWN from firmware * properties. */ -static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, nvram_t *nv) +static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv) { #ifdef CONFIG_SPARC + struct qla_hw_data *ha = vha->hw; struct pci_dev *pdev = ha->pdev; struct device_node *dp = pci_device_to_OF_node(pdev); const u8 *val; @@ -1555,12 +1626,13 @@ static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, nvram_t *nv) * 0 = success. */ int -qla2x00_nvram_config(scsi_qla_host_t *ha) +qla2x00_nvram_config(scsi_qla_host_t *vha) { int rval; uint8_t chksum = 0; uint16_t cnt; uint8_t *dptr1, *dptr2; + struct qla_hw_data *ha = vha->hw; init_cb_t *icb = ha->init_cb; nvram_t *nv = ha->nvram; uint8_t *ptr = ha->nvram; @@ -1576,11 +1648,11 @@ qla2x00_nvram_config(scsi_qla_host_t *ha) ha->nvram_base = 0x80; /* Get NVRAM data and calculate checksum. */ - ha->isp_ops->read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size); + ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size); for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++) chksum += *ptr++; - DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no)); + DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", vha->host_no)); DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size)); /* Bad NVRAM data, set defaults parameters. */ @@ -1594,7 +1666,7 @@ qla2x00_nvram_config(scsi_qla_host_t *ha) "invalid -- WWPN) defaults.\n"); if (chksum) - qla2xxx_hw_event_log(ha, HW_EVENT_NVRAM_CHKSUM_ERR, 0, + qla2xxx_hw_event_log(vha, HW_EVENT_NVRAM_CHKSUM_ERR, 0, MSW(chksum), LSW(chksum)); /* @@ -1631,7 +1703,7 @@ qla2x00_nvram_config(scsi_qla_host_t *ha) nv->port_name[3] = 224; nv->port_name[4] = 139; - qla2xxx_nvram_wwn_from_ofw(ha, nv); + qla2xxx_nvram_wwn_from_ofw(vha, nv); nv->login_timeout = 4; @@ -1684,7 +1756,7 @@ qla2x00_nvram_config(scsi_qla_host_t *ha) strcpy(ha->model_number, "QLA2300"); } } else { - qla2x00_set_model_info(ha, nv->model_number, + qla2x00_set_model_info(vha, nv->model_number, sizeof(nv->model_number), "QLA23xx"); } } else if (IS_QLA2200(ha)) { @@ -1760,8 +1832,8 @@ qla2x00_nvram_config(scsi_qla_host_t *ha) ha->serial0 = icb->port_name[5]; ha->serial1 = icb->port_name[6]; ha->serial2 = icb->port_name[7]; - ha->node_name = icb->node_name; - ha->port_name = icb->port_name; + memcpy(vha->node_name, icb->node_name, WWN_SIZE); + memcpy(vha->port_name, icb->port_name, WWN_SIZE); icb->execution_throttle = __constant_cpu_to_le16(0xFFFF); @@ -1829,10 +1901,10 @@ qla2x00_nvram_config(scsi_qla_host_t *ha) icb->response_accumulation_timer = 3; icb->interrupt_delay_timer = 5; - ha->flags.process_response_queue = 1; + vha->flags.process_response_queue = 1; } else { /* Enable ZIO. */ - if (!ha->flags.init_done) { + if (!vha->flags.init_done) { ha->zio_mode = icb->add_firmware_options[0] & (BIT_3 | BIT_2 | BIT_1 | BIT_0); ha->zio_timer = icb->interrupt_delay_timer ? @@ -1840,12 +1912,12 @@ qla2x00_nvram_config(scsi_qla_host_t *ha) } icb->add_firmware_options[0] &= ~(BIT_3 | BIT_2 | BIT_1 | BIT_0); - ha->flags.process_response_queue = 0; + vha->flags.process_response_queue = 0; if (ha->zio_mode != QLA_ZIO_DISABLED) { ha->zio_mode = QLA_ZIO_MODE_6; DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer " - "delay (%d us).\n", ha->host_no, ha->zio_mode, + "delay (%d us).\n", vha->host_no, ha->zio_mode, ha->zio_timer * 100)); qla_printk(KERN_INFO, ha, "ZIO mode %d enabled; timer delay (%d us).\n", @@ -1853,13 +1925,13 @@ qla2x00_nvram_config(scsi_qla_host_t *ha) icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode; icb->interrupt_delay_timer = (uint8_t)ha->zio_timer; - ha->flags.process_response_queue = 1; + vha->flags.process_response_queue = 1; } } if (rval) { DEBUG2_3(printk(KERN_WARNING - "scsi(%ld): NVRAM configuration failed!\n", ha->host_no)); + "scsi(%ld): NVRAM configuration failed!\n", vha->host_no)); } return (rval); } @@ -1870,10 +1942,10 @@ qla2x00_rport_del(void *data) fc_port_t *fcport = data; struct fc_rport *rport; - spin_lock_irq(fcport->ha->host->host_lock); + spin_lock_irq(fcport->vha->host->host_lock); rport = fcport->drport; fcport->drport = NULL; - spin_unlock_irq(fcport->ha->host->host_lock); + spin_unlock_irq(fcport->vha->host->host_lock); if (rport) fc_remote_port_delete(rport); } @@ -1886,7 +1958,7 @@ qla2x00_rport_del(void *data) * Returns a pointer to the allocated fcport, or NULL, if none available. */ static fc_port_t * -qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags) +qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags) { fc_port_t *fcport; @@ -1895,8 +1967,8 @@ qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags) return NULL; /* Setup fcport template structure. */ - fcport->ha = ha; - fcport->vp_idx = ha->vp_idx; + fcport->vha = vha; + fcport->vp_idx = vha->vp_idx; fcport->port_type = FCT_UNKNOWN; fcport->loop_id = FC_NO_LOOP_ID; atomic_set(&fcport->state, FCS_UNCONFIGURED); @@ -1919,101 +1991,97 @@ qla2x00_alloc_fcport(scsi_qla_host_t *ha, gfp_t flags) * 2 = database was full and device was not configured. */ static int -qla2x00_configure_loop(scsi_qla_host_t *ha) +qla2x00_configure_loop(scsi_qla_host_t *vha) { int rval; unsigned long flags, save_flags; - + struct qla_hw_data *ha = vha->hw; rval = QLA_SUCCESS; /* Get Initiator ID */ - if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) { - rval = qla2x00_configure_hba(ha); + if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) { + rval = qla2x00_configure_hba(vha); if (rval != QLA_SUCCESS) { DEBUG(printk("scsi(%ld): Unable to configure HBA.\n", - ha->host_no)); + vha->host_no)); return (rval); } } - save_flags = flags = ha->dpc_flags; + save_flags = flags = vha->dpc_flags; DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n", - ha->host_no, flags)); + vha->host_no, flags)); /* * If we have both an RSCN and PORT UPDATE pending then handle them * both at the same time. */ - clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); - clear_bit(RSCN_UPDATE, &ha->dpc_flags); + clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); + clear_bit(RSCN_UPDATE, &vha->dpc_flags); /* Determine what we need to do */ if (ha->current_topology == ISP_CFG_FL && (test_bit(LOCAL_LOOP_UPDATE, &flags))) { - ha->flags.rscn_queue_overflow = 1; + vha->flags.rscn_queue_overflow = 1; set_bit(RSCN_UPDATE, &flags); } else if (ha->current_topology == ISP_CFG_F && (test_bit(LOCAL_LOOP_UPDATE, &flags))) { - ha->flags.rscn_queue_overflow = 1; + vha->flags.rscn_queue_overflow = 1; set_bit(RSCN_UPDATE, &flags); clear_bit(LOCAL_LOOP_UPDATE, &flags); } else if (ha->current_topology == ISP_CFG_N) { clear_bit(RSCN_UPDATE, &flags); - } else if (!ha->flags.online || + } else if (!vha->flags.online || (test_bit(ABORT_ISP_ACTIVE, &flags))) { - ha->flags.rscn_queue_overflow = 1; + vha->flags.rscn_queue_overflow = 1; set_bit(RSCN_UPDATE, &flags); set_bit(LOCAL_LOOP_UPDATE, &flags); } if (test_bit(LOCAL_LOOP_UPDATE, &flags)) { - if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { + if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) rval = QLA_FUNCTION_FAILED; - } else { - rval = qla2x00_configure_local_loop(ha); - } + else + rval = qla2x00_configure_local_loop(vha); } if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) { - if (LOOP_TRANSITION(ha)) { + if (LOOP_TRANSITION(vha)) rval = QLA_FUNCTION_FAILED; - } else { - rval = qla2x00_configure_fabric(ha); - } + else + rval = qla2x00_configure_fabric(vha); } if (rval == QLA_SUCCESS) { - if (atomic_read(&ha->loop_down_timer) || - test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { + if (atomic_read(&vha->loop_down_timer) || + test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { rval = QLA_FUNCTION_FAILED; } else { - atomic_set(&ha->loop_state, LOOP_READY); + atomic_set(&vha->loop_state, LOOP_READY); - DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no)); + DEBUG(printk("scsi(%ld): LOOP READY\n", vha->host_no)); } } if (rval) { DEBUG2_3(printk("%s(%ld): *** FAILED ***\n", - __func__, ha->host_no)); + __func__, vha->host_no)); } else { DEBUG3(printk("%s: exiting normally\n", __func__)); } /* Restore state if a resync event occurred during processing */ - if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { + if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { if (test_bit(LOCAL_LOOP_UPDATE, &save_flags)) - set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); - if (test_bit(RSCN_UPDATE, &save_flags)) { - ha->flags.rscn_queue_overflow = 1; - set_bit(RSCN_UPDATE, &ha->dpc_flags); - } + set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); + if (test_bit(RSCN_UPDATE, &save_flags)) + set_bit(RSCN_UPDATE, &vha->dpc_flags); } return (rval); @@ -2032,7 +2100,7 @@ qla2x00_configure_loop(scsi_qla_host_t *ha) * 0 = success. */ static int -qla2x00_configure_local_loop(scsi_qla_host_t *ha) +qla2x00_configure_local_loop(scsi_qla_host_t *vha) { int rval, rval2; int found_devs; @@ -2044,18 +2112,18 @@ qla2x00_configure_local_loop(scsi_qla_host_t *ha) char *id_iter; uint16_t loop_id; uint8_t domain, area, al_pa; - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; found_devs = 0; new_fcport = NULL; entries = MAX_FIBRE_DEVICES; - DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no)); - DEBUG3(qla2x00_get_fcal_position_map(ha, NULL)); + DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", vha->host_no)); + DEBUG3(qla2x00_get_fcal_position_map(vha, NULL)); /* Get list of logged in devices. */ memset(ha->gid_list, 0, GID_LIST_SIZE); - rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma, + rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma, &entries); if (rval != QLA_SUCCESS) goto cleanup_allocation; @@ -2066,7 +2134,7 @@ qla2x00_configure_local_loop(scsi_qla_host_t *ha) entries * sizeof(struct gid_list_info))); /* Allocate temporary fcport for any new fcports discovered. */ - new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); + new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); if (new_fcport == NULL) { rval = QLA_MEMORY_ALLOC_FAILED; goto cleanup_allocation; @@ -2076,17 +2144,14 @@ qla2x00_configure_local_loop(scsi_qla_host_t *ha) /* * Mark local devices that were present with FCF_DEVICE_LOST for now. */ - list_for_each_entry(fcport, &pha->fcports, list) { - if (fcport->vp_idx != ha->vp_idx) - continue; - + list_for_each_entry(fcport, &vha->vp_fcports, list) { if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->port_type != FCT_BROADCAST && (fcport->flags & FCF_FABRIC_DEVICE) == 0) { DEBUG(printk("scsi(%ld): Marking port lost, " "loop_id=0x%04x\n", - ha->host_no, fcport->loop_id)); + vha->host_no, fcport->loop_id)); atomic_set(&fcport->state, FCS_DEVICE_LOST); fcport->flags &= ~FCF_FARP_DONE; @@ -2113,7 +2178,7 @@ qla2x00_configure_local_loop(scsi_qla_host_t *ha) /* Bypass if not same domain and area of adapter. */ if (area && domain && - (area != ha->d_id.b.area || domain != ha->d_id.b.domain)) + (area != vha->d_id.b.area || domain != vha->d_id.b.domain)) continue; /* Bypass invalid local loop ID. */ @@ -2125,26 +2190,23 @@ qla2x00_configure_local_loop(scsi_qla_host_t *ha) new_fcport->d_id.b.area = area; new_fcport->d_id.b.al_pa = al_pa; new_fcport->loop_id = loop_id; - new_fcport->vp_idx = ha->vp_idx; - rval2 = qla2x00_get_port_database(ha, new_fcport, 0); + new_fcport->vp_idx = vha->vp_idx; + rval2 = qla2x00_get_port_database(vha, new_fcport, 0); if (rval2 != QLA_SUCCESS) { DEBUG2(printk("scsi(%ld): Failed to retrieve fcport " "information -- get_port_database=%x, " "loop_id=0x%04x\n", - ha->host_no, rval2, new_fcport->loop_id)); + vha->host_no, rval2, new_fcport->loop_id)); DEBUG2(printk("scsi(%ld): Scheduling resync...\n", - ha->host_no)); - set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); + vha->host_no)); + set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); continue; } /* Check for matching device in port list. */ found = 0; fcport = NULL; - list_for_each_entry(fcport, &pha->fcports, list) { - if (fcport->vp_idx != ha->vp_idx) - continue; - + list_for_each_entry(fcport, &vha->vp_fcports, list) { if (memcmp(new_fcport->port_name, fcport->port_name, WWN_SIZE)) continue; @@ -2164,17 +2226,15 @@ qla2x00_configure_local_loop(scsi_qla_host_t *ha) if (!found) { /* New device, add to fcports list. */ new_fcport->flags &= ~FCF_PERSISTENT_BOUND; - if (ha->parent) { - new_fcport->ha = ha; - new_fcport->vp_idx = ha->vp_idx; - list_add_tail(&new_fcport->vp_fcport, - &ha->vp_fcports); + if (vha->vp_idx) { + new_fcport->vha = vha; + new_fcport->vp_idx = vha->vp_idx; } - list_add_tail(&new_fcport->list, &pha->fcports); + list_add_tail(&new_fcport->list, &vha->vp_fcports); /* Allocate a new replacement fcport. */ fcport = new_fcport; - new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); + new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); if (new_fcport == NULL) { rval = QLA_MEMORY_ALLOC_FAILED; goto cleanup_allocation; @@ -2185,7 +2245,7 @@ qla2x00_configure_local_loop(scsi_qla_host_t *ha) /* Base iIDMA settings on HBA port speed. */ fcport->fp_speed = ha->link_data_rate; - qla2x00_update_fcport(ha, fcport); + qla2x00_update_fcport(vha, fcport); found_devs++; } @@ -2195,24 +2255,25 @@ cleanup_allocation: if (rval != QLA_SUCCESS) { DEBUG2(printk("scsi(%ld): Configure local loop error exit: " - "rval=%x\n", ha->host_no, rval)); + "rval=%x\n", vha->host_no, rval)); } if (found_devs) { - ha->device_flags |= DFLG_LOCAL_DEVICES; - ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES; + vha->device_flags |= DFLG_LOCAL_DEVICES; + vha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES; } return (rval); } static void -qla2x00_iidma_fcport(scsi_qla_host_t *ha, fc_port_t *fcport) +qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport) { #define LS_UNKNOWN 2 static char *link_speeds[5] = { "1", "2", "?", "4", "8" }; int rval; uint16_t mb[6]; + struct qla_hw_data *ha = vha->hw; if (!IS_IIDMA_CAPABLE(ha)) return; @@ -2221,12 +2282,12 @@ qla2x00_iidma_fcport(scsi_qla_host_t *ha, fc_port_t *fcport) fcport->fp_speed > ha->link_data_rate) return; - rval = qla2x00_set_idma_speed(ha, fcport->loop_id, fcport->fp_speed, + rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed, mb); if (rval != QLA_SUCCESS) { DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA " "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n", - ha->host_no, fcport->port_name[0], fcport->port_name[1], + vha->host_no, fcport->port_name[0], fcport->port_name[1], fcport->port_name[2], fcport->port_name[3], fcport->port_name[4], fcport->port_name[5], fcport->port_name[6], fcport->port_name[7], rval, @@ -2244,10 +2305,11 @@ qla2x00_iidma_fcport(scsi_qla_host_t *ha, fc_port_t *fcport) } static void -qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport) +qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport) { struct fc_rport_identifiers rport_ids; struct fc_rport *rport; + struct qla_hw_data *ha = vha->hw; if (fcport->drport) qla2x00_rport_del(fcport); @@ -2257,15 +2319,15 @@ qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport) rport_ids.port_id = fcport->d_id.b.domain << 16 | fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa; rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; - fcport->rport = rport = fc_remote_port_add(ha->host, 0, &rport_ids); + fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids); if (!rport) { qla_printk(KERN_WARNING, ha, "Unable to allocate fc remote port!\n"); return; } - spin_lock_irq(fcport->ha->host->host_lock); + spin_lock_irq(fcport->vha->host->host_lock); *((fc_port_t **)rport->dd_data) = fcport; - spin_unlock_irq(fcport->ha->host->host_lock); + spin_unlock_irq(fcport->vha->host->host_lock); rport->supported_classes = fcport->supported_classes; @@ -2293,23 +2355,23 @@ qla2x00_reg_remote_port(scsi_qla_host_t *ha, fc_port_t *fcport) * Kernel context. */ void -qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport) +qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport) { - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; - fcport->ha = ha; + fcport->vha = vha; fcport->login_retry = 0; - fcport->port_login_retry_count = pha->port_down_retry_count * + fcport->port_login_retry_count = ha->port_down_retry_count * PORT_RETRY_TIME; - atomic_set(&fcport->port_down_timer, pha->port_down_retry_count * + atomic_set(&fcport->port_down_timer, ha->port_down_retry_count * PORT_RETRY_TIME); fcport->flags &= ~FCF_LOGIN_NEEDED; - qla2x00_iidma_fcport(ha, fcport); + qla2x00_iidma_fcport(vha, fcport); atomic_set(&fcport->state, FCS_ONLINE); - qla2x00_reg_remote_port(ha, fcport); + qla2x00_reg_remote_port(vha, fcport); } /* @@ -2324,7 +2386,7 @@ qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport) * BIT_0 = error */ static int -qla2x00_configure_fabric(scsi_qla_host_t *ha) +qla2x00_configure_fabric(scsi_qla_host_t *vha) { int rval, rval2; fc_port_t *fcport, *fcptemp; @@ -2332,25 +2394,26 @@ qla2x00_configure_fabric(scsi_qla_host_t *ha) uint16_t mb[MAILBOX_REGISTER_COUNT]; uint16_t loop_id; LIST_HEAD(new_fcports); - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); /* If FL port exists, then SNS is present */ if (IS_FWI2_CAPABLE(ha)) loop_id = NPH_F_PORT; else loop_id = SNS_FL_PORT; - rval = qla2x00_get_port_name(ha, loop_id, ha->fabric_node_name, 1); + rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1); if (rval != QLA_SUCCESS) { DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL " - "Port\n", ha->host_no)); + "Port\n", vha->host_no)); - ha->device_flags &= ~SWITCH_FOUND; + vha->device_flags &= ~SWITCH_FOUND; return (QLA_SUCCESS); } - ha->device_flags |= SWITCH_FOUND; + vha->device_flags |= SWITCH_FOUND; /* Mark devices that need re-synchronization. */ - rval2 = qla2x00_device_resync(ha); + rval2 = qla2x00_device_resync(vha); if (rval2 == QLA_RSCNS_HANDLED) { /* No point doing the scan, just continue. */ return (QLA_SUCCESS); @@ -2358,15 +2421,15 @@ qla2x00_configure_fabric(scsi_qla_host_t *ha) do { /* FDMI support. */ if (ql2xfdmienable && - test_and_clear_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags)) - qla2x00_fdmi_register(ha); + test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags)) + qla2x00_fdmi_register(vha); /* Ensure we are logged into the SNS. */ if (IS_FWI2_CAPABLE(ha)) loop_id = NPH_SNS; else loop_id = SIMPLE_NAME_SERVER; - ha->isp_ops->fabric_login(ha, loop_id, 0xff, 0xff, + ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff, 0xfc, mb, BIT_1 | BIT_0); if (mb[0] != MBS_COMMAND_COMPLETE) { DEBUG2(qla_printk(KERN_INFO, ha, @@ -2376,29 +2439,29 @@ qla2x00_configure_fabric(scsi_qla_host_t *ha) return (QLA_SUCCESS); } - if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) { - if (qla2x00_rft_id(ha)) { + if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) { + if (qla2x00_rft_id(vha)) { /* EMPTY */ DEBUG2(printk("scsi(%ld): Register FC-4 " - "TYPE failed.\n", ha->host_no)); + "TYPE failed.\n", vha->host_no)); } - if (qla2x00_rff_id(ha)) { + if (qla2x00_rff_id(vha)) { /* EMPTY */ DEBUG2(printk("scsi(%ld): Register FC-4 " - "Features failed.\n", ha->host_no)); + "Features failed.\n", vha->host_no)); } - if (qla2x00_rnn_id(ha)) { + if (qla2x00_rnn_id(vha)) { /* EMPTY */ DEBUG2(printk("scsi(%ld): Register Node Name " - "failed.\n", ha->host_no)); - } else if (qla2x00_rsnn_nn(ha)) { + "failed.\n", vha->host_no)); + } else if (qla2x00_rsnn_nn(vha)) { /* EMPTY */ DEBUG2(printk("scsi(%ld): Register Symbolic " - "Node Name failed.\n", ha->host_no)); + "Node Name failed.\n", vha->host_no)); } } - rval = qla2x00_find_all_fabric_devs(ha, &new_fcports); + rval = qla2x00_find_all_fabric_devs(vha, &new_fcports); if (rval != QLA_SUCCESS) break; @@ -2406,24 +2469,21 @@ qla2x00_configure_fabric(scsi_qla_host_t *ha) * Logout all previous fabric devices marked lost, except * tape devices. */ - list_for_each_entry(fcport, &pha->fcports, list) { - if (fcport->vp_idx !=ha->vp_idx) - continue; - - if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) + list_for_each_entry(fcport, &vha->vp_fcports, list) { + if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) break; if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) continue; if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) { - qla2x00_mark_device_lost(ha, fcport, + qla2x00_mark_device_lost(vha, fcport, ql2xplogiabsentdevice, 0); if (fcport->loop_id != FC_NO_LOOP_ID && (fcport->flags & FCF_TAPE_PRESENT) == 0 && fcport->port_type != FCT_INITIATOR && fcport->port_type != FCT_BROADCAST) { - ha->isp_ops->fabric_logout(ha, + ha->isp_ops->fabric_logout(vha, fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area, @@ -2434,18 +2494,15 @@ qla2x00_configure_fabric(scsi_qla_host_t *ha) } /* Starting free loop ID. */ - next_loopid = pha->min_external_loopid; + next_loopid = ha->min_external_loopid; /* * Scan through our port list and login entries that need to be * logged in. */ - list_for_each_entry(fcport, &pha->fcports, list) { - if (fcport->vp_idx != ha->vp_idx) - continue; - - if (atomic_read(&ha->loop_down_timer) || - test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) + list_for_each_entry(fcport, &vha->vp_fcports, list) { + if (atomic_read(&vha->loop_down_timer) || + test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) break; if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 || @@ -2455,14 +2512,14 @@ qla2x00_configure_fabric(scsi_qla_host_t *ha) if (fcport->loop_id == FC_NO_LOOP_ID) { fcport->loop_id = next_loopid; rval = qla2x00_find_new_loop_id( - to_qla_parent(ha), fcport); + base_vha, fcport); if (rval != QLA_SUCCESS) { /* Ran out of IDs to use */ break; } } /* Login and update database */ - qla2x00_fabric_dev_login(ha, fcport, &next_loopid); + qla2x00_fabric_dev_login(vha, fcport, &next_loopid); } /* Exit if out of loop IDs. */ @@ -2474,31 +2531,26 @@ qla2x00_configure_fabric(scsi_qla_host_t *ha) * Login and add the new devices to our port list. */ list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) { - if (atomic_read(&ha->loop_down_timer) || - test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) + if (atomic_read(&vha->loop_down_timer) || + test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) break; /* Find a new loop ID to use. */ fcport->loop_id = next_loopid; - rval = qla2x00_find_new_loop_id(to_qla_parent(ha), - fcport); + rval = qla2x00_find_new_loop_id(base_vha, fcport); if (rval != QLA_SUCCESS) { /* Ran out of IDs to use */ break; } /* Login and update database */ - qla2x00_fabric_dev_login(ha, fcport, &next_loopid); - - if (ha->parent) { - fcport->ha = ha; - fcport->vp_idx = ha->vp_idx; - list_add_tail(&fcport->vp_fcport, - &ha->vp_fcports); - list_move_tail(&fcport->list, - &ha->parent->fcports); - } else - list_move_tail(&fcport->list, &ha->fcports); + qla2x00_fabric_dev_login(vha, fcport, &next_loopid); + + if (vha->vp_idx) { + fcport->vha = vha; + fcport->vp_idx = vha->vp_idx; + } + list_move_tail(&fcport->list, &vha->vp_fcports); } } while (0); @@ -2510,7 +2562,7 @@ qla2x00_configure_fabric(scsi_qla_host_t *ha) if (rval) { DEBUG2(printk("scsi(%ld): Configure fabric error exit: " - "rval=%d\n", ha->host_no, rval)); + "rval=%d\n", vha->host_no, rval)); } return (rval); @@ -2531,7 +2583,8 @@ qla2x00_configure_fabric(scsi_qla_host_t *ha) * Kernel context. */ static int -qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) +qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha, + struct list_head *new_fcports) { int rval; uint16_t loop_id; @@ -2542,11 +2595,8 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) int swl_idx; int first_dev, last_dev; port_id_t wrap, nxt_d_id; - int vp_index; - int empty_vp_index; - int found_vp; - scsi_qla_host_t *vha; - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; + struct scsi_qla_host *vp, *base_vha = pci_get_drvdata(ha->pdev); rval = QLA_SUCCESS; @@ -2555,43 +2605,42 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) if (!swl) { /*EMPTY*/ DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback " - "on GA_NXT\n", ha->host_no)); + "on GA_NXT\n", vha->host_no)); } else { - if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) { + if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) { kfree(swl); swl = NULL; - } else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) { + } else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) { kfree(swl); swl = NULL; - } else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) { + } else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) { kfree(swl); swl = NULL; } else if (ql2xiidmaenable && - qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) { - qla2x00_gpsc(ha, swl); + qla2x00_gfpn_id(vha, swl) == QLA_SUCCESS) { + qla2x00_gpsc(vha, swl); } } swl_idx = 0; /* Allocate temporary fcport for any new fcports discovered. */ - new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); + new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); if (new_fcport == NULL) { kfree(swl); return (QLA_MEMORY_ALLOC_FAILED); } new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED); - new_fcport->vp_idx = ha->vp_idx; /* Set start port ID scan at adapter ID. */ first_dev = 1; last_dev = 0; /* Starting free loop ID. */ - loop_id = pha->min_external_loopid; - for (; loop_id <= ha->last_loop_id; loop_id++) { - if (qla2x00_is_reserved_id(ha, loop_id)) + loop_id = ha->min_external_loopid; + for (; loop_id <= ha->max_loop_id; loop_id++) { + if (qla2x00_is_reserved_id(vha, loop_id)) continue; - if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha)) + if (atomic_read(&vha->loop_down_timer) || LOOP_TRANSITION(vha)) break; if (swl != NULL) { @@ -2614,7 +2663,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) } } else { /* Send GA_NXT to the switch */ - rval = qla2x00_ga_nxt(ha, new_fcport); + rval = qla2x00_ga_nxt(vha, new_fcport); if (rval != QLA_SUCCESS) { qla_printk(KERN_WARNING, ha, "SNS scan failed -- assuming zero-entry " @@ -2635,44 +2684,31 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) first_dev = 0; } else if (new_fcport->d_id.b24 == wrap.b24) { DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n", - ha->host_no, new_fcport->d_id.b.domain, + vha->host_no, new_fcport->d_id.b.domain, new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa)); break; } /* Bypass if same physical adapter. */ - if (new_fcport->d_id.b24 == pha->d_id.b24) + if (new_fcport->d_id.b24 == base_vha->d_id.b24) continue; /* Bypass virtual ports of the same host. */ - if (pha->num_vhosts) { - for_each_mapped_vp_idx(pha, vp_index) { - empty_vp_index = 1; - found_vp = 0; - list_for_each_entry(vha, &pha->vp_list, - vp_list) { - if (vp_index == vha->vp_idx) { - empty_vp_index = 0; - found_vp = 1; - break; - } - } - - if (empty_vp_index) - continue; - - if (found_vp && - new_fcport->d_id.b24 == vha->d_id.b24) + found = 0; + if (ha->num_vhosts) { + list_for_each_entry(vp, &ha->vp_list, list) { + if (new_fcport->d_id.b24 == vp->d_id.b24) { + found = 1; break; + } } - - if (vp_index <= pha->max_npiv_vports) + if (found) continue; } /* Bypass if same domain and area of adapter. */ if (((new_fcport->d_id.b24 & 0xffff00) == - (ha->d_id.b24 & 0xffff00)) && ha->current_topology == + (vha->d_id.b24 & 0xffff00)) && ha->current_topology == ISP_CFG_FL) continue; @@ -2682,9 +2718,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) /* Locate matching device in database. */ found = 0; - list_for_each_entry(fcport, &pha->fcports, list) { - if (new_fcport->vp_idx != fcport->vp_idx) - continue; + list_for_each_entry(fcport, &vha->vp_fcports, list) { if (memcmp(new_fcport->port_name, fcport->port_name, WWN_SIZE)) continue; @@ -2728,7 +2762,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) (fcport->flags & FCF_TAPE_PRESENT) == 0 && fcport->port_type != FCT_INITIATOR && fcport->port_type != FCT_BROADCAST) { - ha->isp_ops->fabric_logout(ha, fcport->loop_id, + ha->isp_ops->fabric_logout(vha, fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); fcport->loop_id = FC_NO_LOOP_ID; @@ -2739,27 +2773,25 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) if (found) continue; - /* If device was not in our fcports list, then add it. */ list_add_tail(&new_fcport->list, new_fcports); /* Allocate a new replacement fcport. */ nxt_d_id.b24 = new_fcport->d_id.b24; - new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL); + new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); if (new_fcport == NULL) { kfree(swl); return (QLA_MEMORY_ALLOC_FAILED); } new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED); new_fcport->d_id.b24 = nxt_d_id.b24; - new_fcport->vp_idx = ha->vp_idx; } kfree(swl); kfree(new_fcport); if (!list_empty(new_fcports)) - ha->device_flags |= DFLG_FABRIC_DEVICES; + vha->device_flags |= DFLG_FABRIC_DEVICES; return (rval); } @@ -2779,13 +2811,14 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports) * Kernel context. */ static int -qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev) +qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev) { int rval; int found; fc_port_t *fcport; uint16_t first_loop_id; - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; + struct scsi_qla_host *vp; rval = QLA_SUCCESS; @@ -2794,17 +2827,15 @@ qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev) for (;;) { /* Skip loop ID if already used by adapter. */ - if (dev->loop_id == ha->loop_id) { + if (dev->loop_id == vha->loop_id) dev->loop_id++; - } /* Skip reserved loop IDs. */ - while (qla2x00_is_reserved_id(ha, dev->loop_id)) { + while (qla2x00_is_reserved_id(vha, dev->loop_id)) dev->loop_id++; - } /* Reset loop ID if passed the end. */ - if (dev->loop_id > ha->last_loop_id) { + if (dev->loop_id > ha->max_loop_id) { /* first loop ID. */ dev->loop_id = ha->min_external_loopid; } @@ -2812,12 +2843,17 @@ qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev) /* Check for loop ID being already in use. */ found = 0; fcport = NULL; - list_for_each_entry(fcport, &pha->fcports, list) { - if (fcport->loop_id == dev->loop_id && fcport != dev) { - /* ID possibly in use */ - found++; - break; + list_for_each_entry(vp, &ha->vp_list, list) { + list_for_each_entry(fcport, &vp->vp_fcports, list) { + if (fcport->loop_id == dev->loop_id && + fcport != dev) { + /* ID possibly in use */ + found++; + break; + } } + if (found) + break; } /* If not in use then it is free to use. */ @@ -2850,7 +2886,7 @@ qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev) * Kernel context. */ static int -qla2x00_device_resync(scsi_qla_host_t *ha) +qla2x00_device_resync(scsi_qla_host_t *vha) { int rval; uint32_t mask; @@ -2859,14 +2895,13 @@ qla2x00_device_resync(scsi_qla_host_t *ha) uint8_t rscn_out_iter; uint8_t format; port_id_t d_id; - scsi_qla_host_t *pha = to_qla_parent(ha); rval = QLA_RSCNS_HANDLED; - while (ha->rscn_out_ptr != ha->rscn_in_ptr || - ha->flags.rscn_queue_overflow) { + while (vha->rscn_out_ptr != vha->rscn_in_ptr || + vha->flags.rscn_queue_overflow) { - rscn_entry = ha->rscn_queue[ha->rscn_out_ptr]; + rscn_entry = vha->rscn_queue[vha->rscn_out_ptr]; format = MSB(MSW(rscn_entry)); d_id.b.domain = LSB(MSW(rscn_entry)); d_id.b.area = MSB(LSW(rscn_entry)); @@ -2874,37 +2909,37 @@ qla2x00_device_resync(scsi_qla_host_t *ha) DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = " "[%02x/%02x%02x%02x].\n", - ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain, + vha->host_no, vha->rscn_out_ptr, format, d_id.b.domain, d_id.b.area, d_id.b.al_pa)); - ha->rscn_out_ptr++; - if (ha->rscn_out_ptr == MAX_RSCN_COUNT) - ha->rscn_out_ptr = 0; + vha->rscn_out_ptr++; + if (vha->rscn_out_ptr == MAX_RSCN_COUNT) + vha->rscn_out_ptr = 0; /* Skip duplicate entries. */ - for (rscn_out_iter = ha->rscn_out_ptr; - !ha->flags.rscn_queue_overflow && - rscn_out_iter != ha->rscn_in_ptr; + for (rscn_out_iter = vha->rscn_out_ptr; + !vha->flags.rscn_queue_overflow && + rscn_out_iter != vha->rscn_in_ptr; rscn_out_iter = (rscn_out_iter == (MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) { - if (rscn_entry != ha->rscn_queue[rscn_out_iter]) + if (rscn_entry != vha->rscn_queue[rscn_out_iter]) break; DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue " - "entry found at [%d].\n", ha->host_no, + "entry found at [%d].\n", vha->host_no, rscn_out_iter)); - ha->rscn_out_ptr = rscn_out_iter; + vha->rscn_out_ptr = rscn_out_iter; } /* Queue overflow, set switch default case. */ - if (ha->flags.rscn_queue_overflow) { + if (vha->flags.rscn_queue_overflow) { DEBUG(printk("scsi(%ld): device_resync: rscn " - "overflow.\n", ha->host_no)); + "overflow.\n", vha->host_no)); format = 3; - ha->flags.rscn_queue_overflow = 0; + vha->flags.rscn_queue_overflow = 0; } switch (format) { @@ -2920,16 +2955,13 @@ qla2x00_device_resync(scsi_qla_host_t *ha) default: mask = 0x0; d_id.b24 = 0; - ha->rscn_out_ptr = ha->rscn_in_ptr; + vha->rscn_out_ptr = vha->rscn_in_ptr; break; } rval = QLA_SUCCESS; - list_for_each_entry(fcport, &pha->fcports, list) { - if (fcport->vp_idx != ha->vp_idx) - continue; - + list_for_each_entry(fcport, &vha->vp_fcports, list) { if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 || (fcport->d_id.b24 & mask) != d_id.b24 || fcport->port_type == FCT_BROADCAST) @@ -2938,7 +2970,7 @@ qla2x00_device_resync(scsi_qla_host_t *ha) if (atomic_read(&fcport->state) == FCS_ONLINE) { if (format != 3 || fcport->port_type != FCT_INITIATOR) { - qla2x00_mark_device_lost(ha, fcport, + qla2x00_mark_device_lost(vha, fcport, 0, 0); } } @@ -2965,30 +2997,31 @@ qla2x00_device_resync(scsi_qla_host_t *ha) * Kernel context. */ static int -qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport, +qla2x00_fabric_dev_login(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t *next_loopid) { int rval; int retry; uint8_t opts; + struct qla_hw_data *ha = vha->hw; rval = QLA_SUCCESS; retry = 0; - rval = qla2x00_fabric_login(ha, fcport, next_loopid); + rval = qla2x00_fabric_login(vha, fcport, next_loopid); if (rval == QLA_SUCCESS) { /* Send an ADISC to tape devices.*/ opts = 0; if (fcport->flags & FCF_TAPE_PRESENT) opts |= BIT_1; - rval = qla2x00_get_port_database(ha, fcport, opts); + rval = qla2x00_get_port_database(vha, fcport, opts); if (rval != QLA_SUCCESS) { - ha->isp_ops->fabric_logout(ha, fcport->loop_id, + ha->isp_ops->fabric_logout(vha, fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); - qla2x00_mark_device_lost(ha, fcport, 1, 0); + qla2x00_mark_device_lost(vha, fcport, 1, 0); } else { - qla2x00_update_fcport(ha, fcport); + qla2x00_update_fcport(vha, fcport); } } @@ -3010,13 +3043,14 @@ qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport, * 3 - Fatal error */ int -qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport, +qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t *next_loopid) { int rval; int retry; uint16_t tmp_loopid; uint16_t mb[MAILBOX_REGISTER_COUNT]; + struct qla_hw_data *ha = vha->hw; retry = 0; tmp_loopid = 0; @@ -3024,11 +3058,11 @@ qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport, for (;;) { DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x " "for port %02x%02x%02x.\n", - ha->host_no, fcport->loop_id, fcport->d_id.b.domain, + vha->host_no, fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa)); /* Login fcport on switch. */ - ha->isp_ops->fabric_login(ha, fcport->loop_id, + ha->isp_ops->fabric_login(vha, fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, mb, BIT_0); if (mb[0] == MBS_PORT_ID_USED) { @@ -3084,7 +3118,7 @@ qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport, * Loop ID already used, try next loop ID. */ fcport->loop_id++; - rval = qla2x00_find_new_loop_id(ha, fcport); + rval = qla2x00_find_new_loop_id(vha, fcport); if (rval != QLA_SUCCESS) { /* Ran out of loop IDs to use */ break; @@ -3096,10 +3130,10 @@ qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport, * dead. */ *next_loopid = fcport->loop_id; - ha->isp_ops->fabric_logout(ha, fcport->loop_id, + ha->isp_ops->fabric_logout(vha, fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); - qla2x00_mark_device_lost(ha, fcport, 1, 0); + qla2x00_mark_device_lost(vha, fcport, 1, 0); rval = 1; break; @@ -3109,12 +3143,12 @@ qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport, */ DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x " "loop_id=%x jiffies=%lx.\n", - __func__, ha->host_no, mb[0], + __func__, vha->host_no, mb[0], fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, fcport->loop_id, jiffies)); *next_loopid = fcport->loop_id; - ha->isp_ops->fabric_logout(ha, fcport->loop_id, + ha->isp_ops->fabric_logout(vha, fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); fcport->loop_id = FC_NO_LOOP_ID; @@ -3142,13 +3176,13 @@ qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport, * 3 - Fatal error */ int -qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport) +qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport) { int rval; uint16_t mb[MAILBOX_REGISTER_COUNT]; memset(mb, 0, sizeof(mb)); - rval = qla2x00_login_local_device(ha, fcport, mb, BIT_0); + rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0); if (rval == QLA_SUCCESS) { /* Interrogate mailbox registers for any errors */ if (mb[0] == MBS_COMMAND_ERROR) @@ -3172,57 +3206,57 @@ qla2x00_local_device_login(scsi_qla_host_t *ha, fc_port_t *fcport) * 0 = success */ int -qla2x00_loop_resync(scsi_qla_host_t *ha) +qla2x00_loop_resync(scsi_qla_host_t *vha) { - int rval; + int rval = QLA_SUCCESS; uint32_t wait_time; - - rval = QLA_SUCCESS; - - atomic_set(&ha->loop_state, LOOP_UPDATE); - clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); - if (ha->flags.online) { - if (!(rval = qla2x00_fw_ready(ha))) { + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; + struct rsp_que *rsp = ha->rsp_q_map[0]; + + atomic_set(&vha->loop_state, LOOP_UPDATE); + clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags); + if (vha->flags.online) { + if (!(rval = qla2x00_fw_ready(vha))) { /* Wait at most MAX_TARGET RSCNs for a stable link. */ wait_time = 256; do { - atomic_set(&ha->loop_state, LOOP_UPDATE); + atomic_set(&vha->loop_state, LOOP_UPDATE); /* Issue a marker after FW becomes ready. */ - qla2x00_marker(ha, 0, 0, MK_SYNC_ALL); - ha->marker_needed = 0; + qla2x00_marker(vha, req, rsp, 0, 0, + MK_SYNC_ALL); + vha->marker_needed = 0; /* Remap devices on Loop. */ - clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); + clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); - qla2x00_configure_loop(ha); + qla2x00_configure_loop(vha); wait_time--; - } while (!atomic_read(&ha->loop_down_timer) && - !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) && - wait_time && - (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))); + } while (!atomic_read(&vha->loop_down_timer) && + !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) + && wait_time && (test_bit(LOOP_RESYNC_NEEDED, + &vha->dpc_flags))); } } - if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) { + if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) return (QLA_FUNCTION_FAILED); - } - if (rval) { + if (rval) DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__)); - } return (rval); } void -qla2x00_update_fcports(scsi_qla_host_t *ha) +qla2x00_update_fcports(scsi_qla_host_t *vha) { fc_port_t *fcport; /* Go with deferred removal of rport references. */ - list_for_each_entry(fcport, &ha->fcports, list) - if (fcport->drport && + list_for_each_entry(fcport, &vha->vp_fcports, list) + if (fcport && fcport->drport && atomic_read(&fcport->state) != FCS_UNCONFIGURED) qla2x00_rport_del(fcport); } @@ -3238,63 +3272,65 @@ qla2x00_update_fcports(scsi_qla_host_t *ha) * 0 = success */ int -qla2x00_abort_isp(scsi_qla_host_t *ha) +qla2x00_abort_isp(scsi_qla_host_t *vha) { int rval; uint8_t status = 0; - scsi_qla_host_t *vha; + struct qla_hw_data *ha = vha->hw; + struct scsi_qla_host *vp; + struct req_que *req = ha->req_q_map[0]; - if (ha->flags.online) { - ha->flags.online = 0; - clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + if (vha->flags.online) { + vha->flags.online = 0; + clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); ha->qla_stats.total_isp_aborts++; qla_printk(KERN_INFO, ha, "Performing ISP error recovery - ha= %p.\n", ha); - ha->isp_ops->reset_chip(ha); - - atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); - if (atomic_read(&ha->loop_state) != LOOP_DOWN) { - atomic_set(&ha->loop_state, LOOP_DOWN); - qla2x00_mark_all_devices_lost(ha, 0); - list_for_each_entry(vha, &ha->vp_list, vp_list) - qla2x00_mark_all_devices_lost(vha, 0); + ha->isp_ops->reset_chip(vha); + + atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); + if (atomic_read(&vha->loop_state) != LOOP_DOWN) { + atomic_set(&vha->loop_state, LOOP_DOWN); + qla2x00_mark_all_devices_lost(vha, 0); + list_for_each_entry(vp, &ha->vp_list, list) + qla2x00_mark_all_devices_lost(vp, 0); } else { - if (!atomic_read(&ha->loop_down_timer)) - atomic_set(&ha->loop_down_timer, + if (!atomic_read(&vha->loop_down_timer)) + atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); } /* Requeue all commands in outstanding command list. */ - qla2x00_abort_all_cmds(ha, DID_RESET << 16); + qla2x00_abort_all_cmds(vha, DID_RESET << 16); - ha->isp_ops->get_flash_version(ha, ha->request_ring); + ha->isp_ops->get_flash_version(vha, req->ring); - ha->isp_ops->nvram_config(ha); + ha->isp_ops->nvram_config(vha); - if (!qla2x00_restart_isp(ha)) { - clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); + if (!qla2x00_restart_isp(vha)) { + clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); - if (!atomic_read(&ha->loop_down_timer)) { + if (!atomic_read(&vha->loop_down_timer)) { /* * Issue marker command only when we are going * to start the I/O . */ - ha->marker_needed = 1; + vha->marker_needed = 1; } - ha->flags.online = 1; + vha->flags.online = 1; ha->isp_ops->enable_intrs(ha); ha->isp_abort_cnt = 0; - clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags); + clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags); if (ha->fce) { ha->flags.fce_enabled = 1; memset(ha->fce, 0, fce_calc_size(ha->fce_bufs)); - rval = qla2x00_enable_fce_trace(ha, + rval = qla2x00_enable_fce_trace(vha, ha->fce_dma, ha->fce_bufs, ha->fce_mb, &ha->fce_bufs); if (rval) { @@ -3307,7 +3343,7 @@ qla2x00_abort_isp(scsi_qla_host_t *ha) if (ha->eft) { memset(ha->eft, 0, EFT_SIZE); - rval = qla2x00_enable_eft_trace(ha, + rval = qla2x00_enable_eft_trace(vha, ha->eft_dma, EFT_NUM_BUFFERS); if (rval) { qla_printk(KERN_WARNING, ha, @@ -3316,8 +3352,8 @@ qla2x00_abort_isp(scsi_qla_host_t *ha) } } } else { /* failed the ISP abort */ - ha->flags.online = 1; - if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) { + vha->flags.online = 1; + if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) { if (ha->isp_abort_cnt == 0) { qla_printk(KERN_WARNING, ha, "ISP error recovery failed - " @@ -3326,37 +3362,41 @@ qla2x00_abort_isp(scsi_qla_host_t *ha) * The next call disables the board * completely. */ - ha->isp_ops->reset_adapter(ha); - ha->flags.online = 0; + ha->isp_ops->reset_adapter(vha); + vha->flags.online = 0; clear_bit(ISP_ABORT_RETRY, - &ha->dpc_flags); + &vha->dpc_flags); status = 0; } else { /* schedule another ISP abort */ ha->isp_abort_cnt--; DEBUG(printk("qla%ld: ISP abort - " "retry remaining %d\n", - ha->host_no, ha->isp_abort_cnt)); + vha->host_no, ha->isp_abort_cnt)); status = 1; } } else { ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT; DEBUG(printk("qla2x00(%ld): ISP error recovery " "- retrying (%d) more times\n", - ha->host_no, ha->isp_abort_cnt)); - set_bit(ISP_ABORT_RETRY, &ha->dpc_flags); + vha->host_no, ha->isp_abort_cnt)); + set_bit(ISP_ABORT_RETRY, &vha->dpc_flags); status = 1; } } } - if (status) { + if (!status) { + DEBUG(printk(KERN_INFO + "qla2x00_abort_isp(%ld): succeeded.\n", + vha->host_no)); + list_for_each_entry(vp, &ha->vp_list, list) { + if (vp->vp_idx) + qla2x00_vp_abort_isp(vp); + } + } else { qla_printk(KERN_INFO, ha, "qla2x00_abort_isp: **** FAILED ****\n"); - } else { - DEBUG(printk(KERN_INFO - "qla2x00_abort_isp(%ld): exiting.\n", - ha->host_no)); } return(status); @@ -3373,42 +3413,50 @@ qla2x00_abort_isp(scsi_qla_host_t *ha) * 0 = success */ static int -qla2x00_restart_isp(scsi_qla_host_t *ha) +qla2x00_restart_isp(scsi_qla_host_t *vha) { uint8_t status = 0; uint32_t wait_time; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; + struct rsp_que *rsp = ha->rsp_q_map[0]; /* If firmware needs to be loaded */ - if (qla2x00_isp_firmware(ha)) { - ha->flags.online = 0; - if (!(status = ha->isp_ops->chip_diag(ha))) - status = qla2x00_setup_chip(ha); + if (qla2x00_isp_firmware(vha)) { + vha->flags.online = 0; + status = ha->isp_ops->chip_diag(vha); + if (!status) + status = qla2x00_setup_chip(vha); } - if (!status && !(status = qla2x00_init_rings(ha))) { - clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); - if (!(status = qla2x00_fw_ready(ha))) { + if (!status && !(status = qla2x00_init_rings(vha))) { + clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); + /* Initialize the queues in use */ + qla25xx_init_queues(ha); + + status = qla2x00_fw_ready(vha); + if (!status) { DEBUG(printk("%s(): Start configure loop, " "status = %d\n", __func__, status)); /* Issue a marker after FW becomes ready. */ - qla2x00_marker(ha, 0, 0, MK_SYNC_ALL); + qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL); - ha->flags.online = 1; + vha->flags.online = 1; /* Wait at most MAX_TARGET RSCNs for a stable link. */ wait_time = 256; do { - clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); - qla2x00_configure_loop(ha); + clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); + qla2x00_configure_loop(vha); wait_time--; - } while (!atomic_read(&ha->loop_down_timer) && - !(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) && - wait_time && - (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))); + } while (!atomic_read(&vha->loop_down_timer) && + !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) + && wait_time && (test_bit(LOOP_RESYNC_NEEDED, + &vha->dpc_flags))); } /* if no cable then assume it's good */ - if ((ha->device_flags & DFLG_NO_CABLE)) + if ((vha->device_flags & DFLG_NO_CABLE)) status = 0; DEBUG(printk("%s(): Configure loop done, status = 0x%x\n", @@ -3418,6 +3466,46 @@ qla2x00_restart_isp(scsi_qla_host_t *ha) return (status); } +static int +qla25xx_init_queues(struct qla_hw_data *ha) +{ + struct rsp_que *rsp = NULL; + struct req_que *req = NULL; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); + int ret = -1; + int i; + + for (i = 1; i < ha->max_queues; i++) { + rsp = ha->rsp_q_map[i]; + if (rsp) { + rsp->options &= ~BIT_0; + ret = qla25xx_init_rsp_que(base_vha, rsp, rsp->options); + if (ret != QLA_SUCCESS) + DEBUG2_17(printk(KERN_WARNING + "%s Rsp que:%d init failed\n", __func__, + rsp->id)); + else + DEBUG2_17(printk(KERN_INFO + "%s Rsp que:%d inited\n", __func__, + rsp->id)); + } + req = ha->req_q_map[i]; + if (req) { + req->options &= ~BIT_0; + ret = qla25xx_init_req_que(base_vha, req, req->options); + if (ret != QLA_SUCCESS) + DEBUG2_17(printk(KERN_WARNING + "%s Req que:%d init failed\n", __func__, + req->id)); + else + DEBUG2_17(printk(KERN_WARNING + "%s Rsp que:%d inited\n", __func__, + req->id)); + } + } + return ret; +} + /* * qla2x00_reset_adapter * Reset adapter. @@ -3426,12 +3514,13 @@ qla2x00_restart_isp(scsi_qla_host_t *ha) * ha = adapter block pointer. */ void -qla2x00_reset_adapter(scsi_qla_host_t *ha) +qla2x00_reset_adapter(scsi_qla_host_t *vha) { unsigned long flags = 0; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; - ha->flags.online = 0; + vha->flags.online = 0; ha->isp_ops->disable_intrs(ha); spin_lock_irqsave(&ha->hardware_lock, flags); @@ -3443,12 +3532,13 @@ qla2x00_reset_adapter(scsi_qla_host_t *ha) } void -qla24xx_reset_adapter(scsi_qla_host_t *ha) +qla24xx_reset_adapter(scsi_qla_host_t *vha) { unsigned long flags = 0; + struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; - ha->flags.online = 0; + vha->flags.online = 0; ha->isp_ops->disable_intrs(ha); spin_lock_irqsave(&ha->hardware_lock, flags); @@ -3462,9 +3552,11 @@ qla24xx_reset_adapter(scsi_qla_host_t *ha) /* On sparc systems, obtain port and node WWN from firmware * properties. */ -static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, struct nvram_24xx *nv) +static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, + struct nvram_24xx *nv) { #ifdef CONFIG_SPARC + struct qla_hw_data *ha = vha->hw; struct pci_dev *pdev = ha->pdev; struct device_node *dp = pci_device_to_OF_node(pdev); const u8 *val; @@ -3481,7 +3573,7 @@ static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, struct nvram_24xx *n } int -qla24xx_nvram_config(scsi_qla_host_t *ha) +qla24xx_nvram_config(scsi_qla_host_t *vha) { int rval; struct init_cb_24xx *icb; @@ -3490,6 +3582,7 @@ qla24xx_nvram_config(scsi_qla_host_t *ha) uint8_t *dptr1, *dptr2; uint32_t chksum; uint16_t cnt; + struct qla_hw_data *ha = vha->hw; rval = QLA_SUCCESS; icb = (struct init_cb_24xx *)ha->init_cb; @@ -3507,12 +3600,12 @@ qla24xx_nvram_config(scsi_qla_host_t *ha) /* Get VPD data into cache */ ha->vpd = ha->nvram + VPD_OFFSET; - ha->isp_ops->read_nvram(ha, (uint8_t *)ha->vpd, + ha->isp_ops->read_nvram(vha, (uint8_t *)ha->vpd, ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4); /* Get NVRAM data into cache and calculate checksum. */ dptr = (uint32_t *)nv; - ha->isp_ops->read_nvram(ha, (uint8_t *)dptr, ha->nvram_base, + ha->isp_ops->read_nvram(vha, (uint8_t *)dptr, ha->nvram_base, ha->nvram_size); for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++) chksum += le32_to_cpu(*dptr++); @@ -3557,7 +3650,7 @@ qla24xx_nvram_config(scsi_qla_host_t *ha) nv->node_name[5] = 0x1c; nv->node_name[6] = 0x55; nv->node_name[7] = 0x86; - qla24xx_nvram_wwn_from_ofw(ha, nv); + qla24xx_nvram_wwn_from_ofw(vha, nv); nv->login_retry_count = __constant_cpu_to_le16(8); nv->interrupt_delay_timer = __constant_cpu_to_le16(0); nv->login_timeout = __constant_cpu_to_le16(0); @@ -3577,7 +3670,7 @@ qla24xx_nvram_config(scsi_qla_host_t *ha) } /* Reset Initialization control block */ - memset(icb, 0, sizeof(struct init_cb_24xx)); + memset(icb, 0, ha->init_cb_size); /* Copy 1st segment. */ dptr1 = (uint8_t *)icb; @@ -3600,7 +3693,7 @@ qla24xx_nvram_config(scsi_qla_host_t *ha) /* * Setup driver NVRAM options. */ - qla2x00_set_model_info(ha, nv->model_name, sizeof(nv->model_name), + qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name), "QLA2462"); /* Use alternate WWN? */ @@ -3639,8 +3732,8 @@ qla24xx_nvram_config(scsi_qla_host_t *ha) ha->serial0 = icb->port_name[5]; ha->serial1 = icb->port_name[6]; ha->serial2 = icb->port_name[7]; - ha->node_name = icb->node_name; - ha->port_name = icb->port_name; + memcpy(vha->node_name, icb->node_name, WWN_SIZE); + memcpy(vha->port_name, icb->port_name, WWN_SIZE); icb->execution_throttle = __constant_cpu_to_le16(0xFFFF); @@ -3695,7 +3788,7 @@ qla24xx_nvram_config(scsi_qla_host_t *ha) ha->login_retry_count = ql2xloginretrycount; /* Enable ZIO. */ - if (!ha->flags.init_done) { + if (!vha->flags.init_done) { ha->zio_mode = le32_to_cpu(icb->firmware_options_2) & (BIT_3 | BIT_2 | BIT_1 | BIT_0); ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ? @@ -3703,12 +3796,12 @@ qla24xx_nvram_config(scsi_qla_host_t *ha) } icb->firmware_options_2 &= __constant_cpu_to_le32( ~(BIT_3 | BIT_2 | BIT_1 | BIT_0)); - ha->flags.process_response_queue = 0; + vha->flags.process_response_queue = 0; if (ha->zio_mode != QLA_ZIO_DISABLED) { ha->zio_mode = QLA_ZIO_MODE_6; DEBUG2(printk("scsi(%ld): ZIO mode %d enabled; timer delay " - "(%d us).\n", ha->host_no, ha->zio_mode, + "(%d us).\n", vha->host_no, ha->zio_mode, ha->zio_timer * 100)); qla_printk(KERN_INFO, ha, "ZIO mode %d enabled; timer delay (%d us).\n", @@ -3717,36 +3810,37 @@ qla24xx_nvram_config(scsi_qla_host_t *ha) icb->firmware_options_2 |= cpu_to_le32( (uint32_t)ha->zio_mode); icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer); - ha->flags.process_response_queue = 1; + vha->flags.process_response_queue = 1; } if (rval) { DEBUG2_3(printk(KERN_WARNING - "scsi(%ld): NVRAM configuration failed!\n", ha->host_no)); + "scsi(%ld): NVRAM configuration failed!\n", vha->host_no)); } return (rval); } static int -qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr) +qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr) { - int rval; + int rval = QLA_SUCCESS; int segments, fragment; uint32_t faddr; uint32_t *dcode, dlen; uint32_t risc_addr; uint32_t risc_size; uint32_t i; - + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; rval = QLA_SUCCESS; segments = FA_RISC_CODE_SEGMENTS; faddr = ha->flt_region_fw; - dcode = (uint32_t *)ha->request_ring; + dcode = (uint32_t *)req->ring; *srisc_addr = 0; /* Validate firmware image by checking version. */ - qla24xx_read_flash_data(ha, dcode, faddr + 4, 4); + qla24xx_read_flash_data(vha, dcode, faddr + 4, 4); for (i = 0; i < 4; i++) dcode[i] = be32_to_cpu(dcode[i]); if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff && @@ -3764,7 +3858,7 @@ qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr) while (segments && rval == QLA_SUCCESS) { /* Read segment's load information. */ - qla24xx_read_flash_data(ha, dcode, faddr, 4); + qla24xx_read_flash_data(vha, dcode, faddr, 4); risc_addr = be32_to_cpu(dcode[2]); *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr; @@ -3778,17 +3872,17 @@ qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr) DEBUG7(printk("scsi(%ld): Loading risc segment@ risc " "addr %x, number of dwords 0x%x, offset 0x%x.\n", - ha->host_no, risc_addr, dlen, faddr)); + vha->host_no, risc_addr, dlen, faddr)); - qla24xx_read_flash_data(ha, dcode, faddr, dlen); + qla24xx_read_flash_data(vha, dcode, faddr, dlen); for (i = 0; i < dlen; i++) dcode[i] = swab32(dcode[i]); - rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr, + rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen); if (rval) { DEBUG(printk("scsi(%ld):[ERROR] Failed to load " - "segment %d of firmware\n", ha->host_no, + "segment %d of firmware\n", vha->host_no, fragment)); qla_printk(KERN_WARNING, ha, "[ERROR] Failed to load segment %d of " @@ -3812,16 +3906,18 @@ qla24xx_load_risc_flash(scsi_qla_host_t *ha, uint32_t *srisc_addr) #define QLA_FW_URL "ftp://ftp.qlogic.com/outgoing/linux/firmware/" int -qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr) +qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr) { int rval; int i, fragment; uint16_t *wcode, *fwcode; uint32_t risc_addr, risc_size, fwclen, wlen, *seg; struct fw_blob *blob; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; /* Load firmware blob. */ - blob = qla2x00_request_firmware(ha); + blob = qla2x00_request_firmware(vha); if (!blob) { qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n"); qla_printk(KERN_ERR, ha, "Firmware images can be retrieved " @@ -3831,7 +3927,7 @@ qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr) rval = QLA_SUCCESS; - wcode = (uint16_t *)ha->request_ring; + wcode = (uint16_t *)req->ring; *srisc_addr = 0; fwcode = (uint16_t *)blob->fw->data; fwclen = 0; @@ -3878,17 +3974,17 @@ qla2x00_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr) wlen = risc_size; DEBUG7(printk("scsi(%ld): Loading risc segment@ risc " - "addr %x, number of words 0x%x.\n", ha->host_no, + "addr %x, number of words 0x%x.\n", vha->host_no, risc_addr, wlen)); for (i = 0; i < wlen; i++) wcode[i] = swab16(fwcode[i]); - rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr, + rval = qla2x00_load_ram(vha, req->dma, risc_addr, wlen); if (rval) { DEBUG(printk("scsi(%ld):[ERROR] Failed to load " - "segment %d of firmware\n", ha->host_no, + "segment %d of firmware\n", vha->host_no, fragment)); qla_printk(KERN_WARNING, ha, "[ERROR] Failed to load segment %d of " @@ -3912,7 +4008,7 @@ fail_fw_integrity: } int -qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr) +qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr) { int rval; int segments, fragment; @@ -3922,9 +4018,11 @@ qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr) uint32_t i; struct fw_blob *blob; uint32_t *fwcode, fwclen; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; /* Load firmware blob. */ - blob = qla2x00_request_firmware(ha); + blob = qla2x00_request_firmware(vha); if (!blob) { qla_printk(KERN_ERR, ha, "Firmware image unavailable.\n"); qla_printk(KERN_ERR, ha, "Firmware images can be retrieved " @@ -3933,13 +4031,13 @@ qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr) /* Try to load RISC code from flash. */ qla_printk(KERN_ERR, ha, "Attempting to load (potentially " "outdated) firmware from flash.\n"); - return qla24xx_load_risc_flash(ha, srisc_addr); + return qla24xx_load_risc_flash(vha, srisc_addr); } rval = QLA_SUCCESS; segments = FA_RISC_CODE_SEGMENTS; - dcode = (uint32_t *)ha->request_ring; + dcode = (uint32_t *)req->ring; *srisc_addr = 0; fwcode = (uint32_t *)blob->fw->data; fwclen = 0; @@ -3987,17 +4085,17 @@ qla24xx_load_risc(scsi_qla_host_t *ha, uint32_t *srisc_addr) dlen = risc_size; DEBUG7(printk("scsi(%ld): Loading risc segment@ risc " - "addr %x, number of dwords 0x%x.\n", ha->host_no, + "addr %x, number of dwords 0x%x.\n", vha->host_no, risc_addr, dlen)); for (i = 0; i < dlen; i++) dcode[i] = swab32(fwcode[i]); - rval = qla2x00_load_ram(ha, ha->request_dma, risc_addr, + rval = qla2x00_load_ram(vha, req->dma, risc_addr, dlen); if (rval) { DEBUG(printk("scsi(%ld):[ERROR] Failed to load " - "segment %d of firmware\n", ha->host_no, + "segment %d of firmware\n", vha->host_no, fragment)); qla_printk(KERN_WARNING, ha, "[ERROR] Failed to load segment %d of " @@ -4021,49 +4119,53 @@ fail_fw_integrity: } void -qla2x00_try_to_stop_firmware(scsi_qla_host_t *ha) +qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha) { int ret, retries; + struct qla_hw_data *ha = vha->hw; if (!IS_FWI2_CAPABLE(ha)) return; if (!ha->fw_major_version) return; - ret = qla2x00_stop_firmware(ha); + ret = qla2x00_stop_firmware(vha); for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT && retries ; retries--) { - ha->isp_ops->reset_chip(ha); - if (ha->isp_ops->chip_diag(ha) != QLA_SUCCESS) + ha->isp_ops->reset_chip(vha); + if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS) continue; - if (qla2x00_setup_chip(ha) != QLA_SUCCESS) + if (qla2x00_setup_chip(vha) != QLA_SUCCESS) continue; qla_printk(KERN_INFO, ha, "Attempting retry of stop-firmware command...\n"); - ret = qla2x00_stop_firmware(ha); + ret = qla2x00_stop_firmware(vha); } } int -qla24xx_configure_vhba(scsi_qla_host_t *ha) +qla24xx_configure_vhba(scsi_qla_host_t *vha) { int rval = QLA_SUCCESS; uint16_t mb[MAILBOX_REGISTER_COUNT]; + struct qla_hw_data *ha = vha->hw; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); + struct req_que *req = ha->req_q_map[0]; + struct rsp_que *rsp = ha->rsp_q_map[0]; - if (!ha->parent) + if (!vha->vp_idx) return -EINVAL; - rval = qla2x00_fw_ready(ha->parent); + rval = qla2x00_fw_ready(base_vha); if (rval == QLA_SUCCESS) { - clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); - qla2x00_marker(ha, 0, 0, MK_SYNC_ALL); + clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); + qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL); } - ha->flags.management_server_logged_in = 0; + vha->flags.management_server_logged_in = 0; /* Login to SNS first */ - qla24xx_login_fabric(ha->parent, NPH_SNS, 0xff, 0xff, 0xfc, - mb, BIT_1); + ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb, BIT_1); if (mb[0] != MBS_COMMAND_COMPLETE) { DEBUG15(qla_printk(KERN_INFO, ha, "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x " @@ -4072,11 +4174,11 @@ qla24xx_configure_vhba(scsi_qla_host_t *ha) return (QLA_FUNCTION_FAILED); } - atomic_set(&ha->loop_down_timer, 0); - atomic_set(&ha->loop_state, LOOP_UP); - set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); - set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); - rval = qla2x00_loop_resync(ha->parent); + atomic_set(&vha->loop_down_timer, 0); + atomic_set(&vha->loop_state, LOOP_UP); + set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); + set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); + rval = qla2x00_loop_resync(base_vha); return rval; } @@ -4087,9 +4189,10 @@ static LIST_HEAD(qla_cs84xx_list); static DEFINE_MUTEX(qla_cs84xx_mutex); static struct qla_chip_state_84xx * -qla84xx_get_chip(struct scsi_qla_host *ha) +qla84xx_get_chip(struct scsi_qla_host *vha) { struct qla_chip_state_84xx *cs84xx; + struct qla_hw_data *ha = vha->hw; mutex_lock(&qla_cs84xx_mutex); @@ -4129,21 +4232,23 @@ __qla84xx_chip_release(struct kref *kref) } void -qla84xx_put_chip(struct scsi_qla_host *ha) +qla84xx_put_chip(struct scsi_qla_host *vha) { + struct qla_hw_data *ha = vha->hw; if (ha->cs84xx) kref_put(&ha->cs84xx->kref, __qla84xx_chip_release); } static int -qla84xx_init_chip(scsi_qla_host_t *ha) +qla84xx_init_chip(scsi_qla_host_t *vha) { int rval; uint16_t status[2]; + struct qla_hw_data *ha = vha->hw; mutex_lock(&ha->cs84xx->fw_update_mutex); - rval = qla84xx_verify_chip(ha, status); + rval = qla84xx_verify_chip(vha, status); mutex_unlock(&ha->cs84xx->fw_update_mutex); diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h index e90afad..5e0a709 100644 --- a/drivers/scsi/qla2xxx/qla_inline.h +++ b/drivers/scsi/qla2xxx/qla_inline.h @@ -32,47 +32,15 @@ qla2x00_debounce_register(volatile uint16_t __iomem *addr) } static inline void -qla2x00_poll(scsi_qla_host_t *ha) +qla2x00_poll(struct rsp_que *rsp) { unsigned long flags; - + struct qla_hw_data *ha = rsp->hw; local_irq_save(flags); - ha->isp_ops->intr_handler(0, ha); + ha->isp_ops->intr_handler(0, rsp); local_irq_restore(flags); } -static __inline__ scsi_qla_host_t * -to_qla_parent(scsi_qla_host_t *ha) -{ - return ha->parent ? ha->parent : ha; -} - -/** - * qla2x00_issue_marker() - Issue a Marker IOCB if necessary. - * @ha: HA context - * @ha_locked: is function called with the hardware lock - * - * Returns non-zero if a failure occurred, else zero. - */ -static inline int -qla2x00_issue_marker(scsi_qla_host_t *ha, int ha_locked) -{ - /* Send marker if required */ - if (ha->marker_needed != 0) { - if (ha_locked) { - if (__qla2x00_marker(ha, 0, 0, MK_SYNC_ALL) != - QLA_SUCCESS) - return (QLA_FUNCTION_FAILED); - } else { - if (qla2x00_marker(ha, 0, 0, MK_SYNC_ALL) != - QLA_SUCCESS) - return (QLA_FUNCTION_FAILED); - } - ha->marker_needed = 0; - } - return (QLA_SUCCESS); -} - static inline uint8_t * host_to_fcp_swap(uint8_t *fcp, uint32_t bsize) { @@ -87,11 +55,12 @@ host_to_fcp_swap(uint8_t *fcp, uint32_t bsize) } static inline int -qla2x00_is_reserved_id(scsi_qla_host_t *ha, uint16_t loop_id) +qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id) { + struct qla_hw_data *ha = vha->hw; if (IS_FWI2_CAPABLE(ha)) return (loop_id > NPH_LAST_HANDLE); - return ((loop_id > ha->last_loop_id && loop_id < SNS_FIRST_LOOP_ID) || + return ((loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) || loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST); -}; +} diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 85bc0a4..5bedc9d 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -11,8 +11,9 @@ #include <scsi/scsi_tcq.h> -static request_t *qla2x00_req_pkt(scsi_qla_host_t *ha); -static void qla2x00_isp_cmd(scsi_qla_host_t *ha); +static request_t *qla2x00_req_pkt(struct scsi_qla_host *, struct req_que *, + struct rsp_que *rsp); +static void qla2x00_isp_cmd(struct scsi_qla_host *, struct req_que *); /** * qla2x00_get_cmd_direction() - Determine control_flag data direction. @@ -30,11 +31,11 @@ qla2x00_get_cmd_direction(srb_t *sp) /* Set transfer direction */ if (sp->cmd->sc_data_direction == DMA_TO_DEVICE) { cflags = CF_WRITE; - sp->fcport->ha->qla_stats.output_bytes += + sp->fcport->vha->hw->qla_stats.output_bytes += scsi_bufflen(sp->cmd); } else if (sp->cmd->sc_data_direction == DMA_FROM_DEVICE) { cflags = CF_READ; - sp->fcport->ha->qla_stats.input_bytes += + sp->fcport->vha->hw->qla_stats.input_bytes += scsi_bufflen(sp->cmd); } return (cflags); @@ -91,20 +92,19 @@ qla2x00_calc_iocbs_64(uint16_t dsds) * Returns a pointer to the Continuation Type 0 IOCB packet. */ static inline cont_entry_t * -qla2x00_prep_cont_type0_iocb(scsi_qla_host_t *ha) +qla2x00_prep_cont_type0_iocb(struct req_que *req, struct scsi_qla_host *vha) { cont_entry_t *cont_pkt; - /* Adjust ring index. */ - ha->req_ring_index++; - if (ha->req_ring_index == ha->request_q_length) { - ha->req_ring_index = 0; - ha->request_ring_ptr = ha->request_ring; + req->ring_index++; + if (req->ring_index == req->length) { + req->ring_index = 0; + req->ring_ptr = req->ring; } else { - ha->request_ring_ptr++; + req->ring_ptr++; } - cont_pkt = (cont_entry_t *)ha->request_ring_ptr; + cont_pkt = (cont_entry_t *)req->ring_ptr; /* Load packet defaults. */ *((uint32_t *)(&cont_pkt->entry_type)) = @@ -120,20 +120,20 @@ qla2x00_prep_cont_type0_iocb(scsi_qla_host_t *ha) * Returns a pointer to the continuation type 1 IOCB packet. */ static inline cont_a64_entry_t * -qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *ha) +qla2x00_prep_cont_type1_iocb(struct req_que *req, scsi_qla_host_t *vha) { cont_a64_entry_t *cont_pkt; /* Adjust ring index. */ - ha->req_ring_index++; - if (ha->req_ring_index == ha->request_q_length) { - ha->req_ring_index = 0; - ha->request_ring_ptr = ha->request_ring; + req->ring_index++; + if (req->ring_index == req->length) { + req->ring_index = 0; + req->ring_ptr = req->ring; } else { - ha->request_ring_ptr++; + req->ring_ptr++; } - cont_pkt = (cont_a64_entry_t *)ha->request_ring_ptr; + cont_pkt = (cont_a64_entry_t *)req->ring_ptr; /* Load packet defaults. */ *((uint32_t *)(&cont_pkt->entry_type)) = @@ -155,10 +155,11 @@ void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, { uint16_t avail_dsds; uint32_t *cur_dsd; - scsi_qla_host_t *ha; + scsi_qla_host_t *vha; struct scsi_cmnd *cmd; struct scatterlist *sg; int i; + struct req_que *req; cmd = sp->cmd; @@ -172,7 +173,8 @@ void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, return; } - ha = sp->ha; + vha = sp->vha; + req = sp->que; cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); @@ -190,7 +192,7 @@ void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, * Seven DSDs are available in the Continuation * Type 0 IOCB. */ - cont_pkt = qla2x00_prep_cont_type0_iocb(ha); + cont_pkt = qla2x00_prep_cont_type0_iocb(req, vha); cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address; avail_dsds = 7; } @@ -214,10 +216,11 @@ void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, { uint16_t avail_dsds; uint32_t *cur_dsd; - scsi_qla_host_t *ha; + scsi_qla_host_t *vha; struct scsi_cmnd *cmd; struct scatterlist *sg; int i; + struct req_que *req; cmd = sp->cmd; @@ -231,7 +234,8 @@ void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, return; } - ha = sp->ha; + vha = sp->vha; + req = sp->que; cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); @@ -250,7 +254,7 @@ void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, * Five DSDs are available in the Continuation * Type 1 IOCB. */ - cont_pkt = qla2x00_prep_cont_type1_iocb(ha); + cont_pkt = qla2x00_prep_cont_type1_iocb(req, vha); cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; avail_dsds = 5; } @@ -274,7 +278,7 @@ qla2x00_start_scsi(srb_t *sp) { int ret, nseg; unsigned long flags; - scsi_qla_host_t *ha; + scsi_qla_host_t *vha; struct scsi_cmnd *cmd; uint32_t *clr_ptr; uint32_t index; @@ -284,33 +288,39 @@ qla2x00_start_scsi(srb_t *sp) uint16_t req_cnt; uint16_t tot_dsds; struct device_reg_2xxx __iomem *reg; + struct qla_hw_data *ha; + struct req_que *req; + struct rsp_que *rsp; /* Setup device pointers. */ ret = 0; - ha = sp->ha; + vha = sp->vha; + ha = vha->hw; reg = &ha->iobase->isp; cmd = sp->cmd; + req = ha->req_q_map[0]; + rsp = ha->rsp_q_map[0]; /* So we know we haven't pci_map'ed anything yet */ tot_dsds = 0; /* Send marker if required */ - if (ha->marker_needed != 0) { - if (qla2x00_marker(ha, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { + if (vha->marker_needed != 0) { + if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) + != QLA_SUCCESS) return (QLA_FUNCTION_FAILED); - } - ha->marker_needed = 0; + vha->marker_needed = 0; } /* Acquire ring specific lock */ spin_lock_irqsave(&ha->hardware_lock, flags); /* Check for room in outstanding command list. */ - handle = ha->current_outstanding_cmd; + handle = req->current_outstanding_cmd; for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { handle++; if (handle == MAX_OUTSTANDING_COMMANDS) handle = 1; - if (!ha->outstanding_cmds[handle]) + if (!req->outstanding_cmds[handle]) break; } if (index == MAX_OUTSTANDING_COMMANDS) @@ -329,25 +339,26 @@ qla2x00_start_scsi(srb_t *sp) /* Calculate the number of request entries needed. */ req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); - if (ha->req_q_cnt < (req_cnt + 2)) { + if (req->cnt < (req_cnt + 2)) { cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg)); - if (ha->req_ring_index < cnt) - ha->req_q_cnt = cnt - ha->req_ring_index; + if (req->ring_index < cnt) + req->cnt = cnt - req->ring_index; else - ha->req_q_cnt = ha->request_q_length - - (ha->req_ring_index - cnt); + req->cnt = req->length - + (req->ring_index - cnt); } - if (ha->req_q_cnt < (req_cnt + 2)) + if (req->cnt < (req_cnt + 2)) goto queuing_error; /* Build command packet */ - ha->current_outstanding_cmd = handle; - ha->outstanding_cmds[handle] = sp; - sp->ha = ha; + req->current_outstanding_cmd = handle; + req->outstanding_cmds[handle] = sp; + sp->vha = vha; + sp->que = req; sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; - ha->req_q_cnt -= req_cnt; + req->cnt -= req_cnt; - cmd_pkt = (cmd_entry_t *)ha->request_ring_ptr; + cmd_pkt = (cmd_entry_t *)req->ring_ptr; cmd_pkt->handle = handle; /* Zero out remaining portion of packet. */ clr_ptr = (uint32_t *)cmd_pkt + 2; @@ -373,23 +384,23 @@ qla2x00_start_scsi(srb_t *sp) wmb(); /* Adjust ring index. */ - ha->req_ring_index++; - if (ha->req_ring_index == ha->request_q_length) { - ha->req_ring_index = 0; - ha->request_ring_ptr = ha->request_ring; + req->ring_index++; + if (req->ring_index == req->length) { + req->ring_index = 0; + req->ring_ptr = req->ring; } else - ha->request_ring_ptr++; + req->ring_ptr++; sp->flags |= SRB_DMA_VALID; /* Set chip new ring index. */ - WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), ha->req_ring_index); + WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index); RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ /* Manage unprocessed RIO/ZIO commands in response queue. */ - if (ha->flags.process_response_queue && - ha->response_ring_ptr->signature != RESPONSE_PROCESSED) - qla2x00_process_response_queue(ha); + if (vha->flags.process_response_queue && + rsp->ring_ptr->signature != RESPONSE_PROCESSED) + qla2x00_process_response_queue(rsp); spin_unlock_irqrestore(&ha->hardware_lock, flags); return (QLA_SUCCESS); @@ -415,18 +426,20 @@ queuing_error: * Returns non-zero if a failure occurred, else zero. */ int -__qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, - uint8_t type) +__qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, + struct rsp_que *rsp, uint16_t loop_id, + uint16_t lun, uint8_t type) { mrk_entry_t *mrk; struct mrk_entry_24xx *mrk24; - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; + scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); mrk24 = NULL; - mrk = (mrk_entry_t *)qla2x00_req_pkt(pha); + mrk = (mrk_entry_t *)qla2x00_req_pkt(vha, req, rsp); if (mrk == NULL) { DEBUG2_3(printk("%s(%ld): failed to allocate Marker IOCB.\n", - __func__, ha->host_no)); + __func__, base_vha->host_no)); return (QLA_FUNCTION_FAILED); } @@ -440,7 +453,7 @@ __qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, mrk24->lun[1] = LSB(lun); mrk24->lun[2] = MSB(lun); host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); - mrk24->vp_index = ha->vp_idx; + mrk24->vp_index = vha->vp_idx; } else { SET_TARGET_ID(ha, mrk->target, loop_id); mrk->lun = cpu_to_le16(lun); @@ -448,22 +461,22 @@ __qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, } wmb(); - qla2x00_isp_cmd(pha); + qla2x00_isp_cmd(vha, req); return (QLA_SUCCESS); } int -qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, - uint8_t type) +qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, + struct rsp_que *rsp, uint16_t loop_id, uint16_t lun, + uint8_t type) { int ret; unsigned long flags = 0; - scsi_qla_host_t *pha = to_qla_parent(ha); - spin_lock_irqsave(&pha->hardware_lock, flags); - ret = __qla2x00_marker(ha, loop_id, lun, type); - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_lock_irqsave(&vha->hw->hardware_lock, flags); + ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type); + spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); return (ret); } @@ -477,9 +490,11 @@ qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun, * Returns NULL if function failed, else, a pointer to the request packet. */ static request_t * -qla2x00_req_pkt(scsi_qla_host_t *ha) +qla2x00_req_pkt(struct scsi_qla_host *vha, struct req_que *req, + struct rsp_que *rsp) { - device_reg_t __iomem *reg = ha->iobase; + struct qla_hw_data *ha = vha->hw; + device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); request_t *pkt = NULL; uint16_t cnt; uint32_t *dword_ptr; @@ -488,24 +503,29 @@ qla2x00_req_pkt(scsi_qla_host_t *ha) /* Wait 1 second for slot. */ for (timer = HZ; timer; timer--) { - if ((req_cnt + 2) >= ha->req_q_cnt) { + if ((req_cnt + 2) >= req->cnt) { /* Calculate number of free request entries. */ - if (IS_FWI2_CAPABLE(ha)) - cnt = (uint16_t)RD_REG_DWORD( - ®->isp24.req_q_out); - else - cnt = qla2x00_debounce_register( - ISP_REQ_Q_OUT(ha, ®->isp)); - if (ha->req_ring_index < cnt) - ha->req_q_cnt = cnt - ha->req_ring_index; + if (ha->mqenable) + cnt = (uint16_t) + RD_REG_DWORD(®->isp25mq.req_q_out); + else { + if (IS_FWI2_CAPABLE(ha)) + cnt = (uint16_t)RD_REG_DWORD( + ®->isp24.req_q_out); + else + cnt = qla2x00_debounce_register( + ISP_REQ_Q_OUT(ha, ®->isp)); + } + if (req->ring_index < cnt) + req->cnt = cnt - req->ring_index; else - ha->req_q_cnt = ha->request_q_length - - (ha->req_ring_index - cnt); + req->cnt = req->length - + (req->ring_index - cnt); } /* If room for request in request ring. */ - if ((req_cnt + 2) < ha->req_q_cnt) { - ha->req_q_cnt--; - pkt = ha->request_ring_ptr; + if ((req_cnt + 2) < req->cnt) { + req->cnt--; + pkt = req->ring_ptr; /* Zero out packet. */ dword_ptr = (uint32_t *)pkt; @@ -513,7 +533,7 @@ qla2x00_req_pkt(scsi_qla_host_t *ha) *dword_ptr++ = 0; /* Set system defined field. */ - pkt->sys_define = (uint8_t)ha->req_ring_index; + pkt->sys_define = (uint8_t)req->ring_index; /* Set entry count. */ pkt->entry_count = 1; @@ -522,15 +542,14 @@ qla2x00_req_pkt(scsi_qla_host_t *ha) } /* Release ring specific lock */ - spin_unlock(&ha->hardware_lock); + spin_unlock_irq(&ha->hardware_lock); udelay(2); /* 2 us */ /* Check for pending interrupts. */ /* During init we issue marker directly */ - if (!ha->marker_needed && !ha->flags.init_done) - qla2x00_poll(ha); - + if (!vha->marker_needed && !vha->flags.init_done) + qla2x00_poll(rsp); spin_lock_irq(&ha->hardware_lock); } if (!pkt) { @@ -547,29 +566,38 @@ qla2x00_req_pkt(scsi_qla_host_t *ha) * Note: The caller must hold the hardware lock before calling this routine. */ static void -qla2x00_isp_cmd(scsi_qla_host_t *ha) +qla2x00_isp_cmd(struct scsi_qla_host *vha, struct req_que *req) { - device_reg_t __iomem *reg = ha->iobase; + struct qla_hw_data *ha = vha->hw; + device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); + struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; DEBUG5(printk("%s(): IOCB data:\n", __func__)); DEBUG5(qla2x00_dump_buffer( - (uint8_t *)ha->request_ring_ptr, REQUEST_ENTRY_SIZE)); + (uint8_t *)req->ring_ptr, REQUEST_ENTRY_SIZE)); /* Adjust ring index. */ - ha->req_ring_index++; - if (ha->req_ring_index == ha->request_q_length) { - ha->req_ring_index = 0; - ha->request_ring_ptr = ha->request_ring; + req->ring_index++; + if (req->ring_index == req->length) { + req->ring_index = 0; + req->ring_ptr = req->ring; } else - ha->request_ring_ptr++; + req->ring_ptr++; /* Set chip new ring index. */ - if (IS_FWI2_CAPABLE(ha)) { - WRT_REG_DWORD(®->isp24.req_q_in, ha->req_ring_index); - RD_REG_DWORD_RELAXED(®->isp24.req_q_in); - } else { - WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), ha->req_ring_index); - RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); + if (ha->mqenable) { + WRT_REG_DWORD(®->isp25mq.req_q_in, req->ring_index); + RD_REG_DWORD(&ioreg->hccr); + } + else { + if (IS_FWI2_CAPABLE(ha)) { + WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); + RD_REG_DWORD_RELAXED(®->isp24.req_q_in); + } else { + WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), + req->ring_index); + RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); + } } } @@ -610,10 +638,11 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, { uint16_t avail_dsds; uint32_t *cur_dsd; - scsi_qla_host_t *ha; + scsi_qla_host_t *vha; struct scsi_cmnd *cmd; struct scatterlist *sg; int i; + struct req_que *req; cmd = sp->cmd; @@ -627,18 +656,19 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, return; } - ha = sp->ha; + vha = sp->vha; + req = sp->que; /* Set transfer direction */ if (cmd->sc_data_direction == DMA_TO_DEVICE) { cmd_pkt->task_mgmt_flags = __constant_cpu_to_le16(TMF_WRITE_DATA); - sp->fcport->ha->qla_stats.output_bytes += + sp->fcport->vha->hw->qla_stats.output_bytes += scsi_bufflen(sp->cmd); } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { cmd_pkt->task_mgmt_flags = __constant_cpu_to_le16(TMF_READ_DATA); - sp->fcport->ha->qla_stats.input_bytes += + sp->fcport->vha->hw->qla_stats.input_bytes += scsi_bufflen(sp->cmd); } @@ -658,7 +688,7 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, * Five DSDs are available in the Continuation * Type 1 IOCB. */ - cont_pkt = qla2x00_prep_cont_type1_iocb(ha); + cont_pkt = qla2x00_prep_cont_type1_iocb(req, vha); cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; avail_dsds = 5; } @@ -683,8 +713,6 @@ qla24xx_start_scsi(srb_t *sp) { int ret, nseg; unsigned long flags; - scsi_qla_host_t *ha, *pha; - struct scsi_cmnd *cmd; uint32_t *clr_ptr; uint32_t index; uint32_t handle; @@ -692,35 +720,45 @@ qla24xx_start_scsi(srb_t *sp) uint16_t cnt; uint16_t req_cnt; uint16_t tot_dsds; - struct device_reg_24xx __iomem *reg; + struct req_que *req = NULL; + struct rsp_que *rsp = NULL; + struct scsi_cmnd *cmd = sp->cmd; + struct scsi_qla_host *vha = sp->vha; + struct qla_hw_data *ha = vha->hw; + uint16_t que_id; /* Setup device pointers. */ ret = 0; - ha = sp->ha; - pha = to_qla_parent(ha); - reg = &ha->iobase->isp24; - cmd = sp->cmd; + que_id = vha->req_ques[0]; + + req = ha->req_q_map[que_id]; + sp->que = req; + + if (req->rsp) + rsp = req->rsp; + else + rsp = ha->rsp_q_map[que_id]; /* So we know we haven't pci_map'ed anything yet */ tot_dsds = 0; /* Send marker if required */ - if (ha->marker_needed != 0) { - if (qla2x00_marker(ha, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { + if (vha->marker_needed != 0) { + if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) + != QLA_SUCCESS) return QLA_FUNCTION_FAILED; - } - ha->marker_needed = 0; + vha->marker_needed = 0; } /* Acquire ring specific lock */ - spin_lock_irqsave(&pha->hardware_lock, flags); + spin_lock_irqsave(&ha->hardware_lock, flags); /* Check for room in outstanding command list. */ - handle = ha->current_outstanding_cmd; + handle = req->current_outstanding_cmd; for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { handle++; if (handle == MAX_OUTSTANDING_COMMANDS) handle = 1; - if (!ha->outstanding_cmds[handle]) + if (!req->outstanding_cmds[handle]) break; } if (index == MAX_OUTSTANDING_COMMANDS) @@ -738,25 +776,26 @@ qla24xx_start_scsi(srb_t *sp) tot_dsds = nseg; req_cnt = qla24xx_calc_iocbs(tot_dsds); - if (ha->req_q_cnt < (req_cnt + 2)) { - cnt = (uint16_t)RD_REG_DWORD_RELAXED(®->req_q_out); - if (ha->req_ring_index < cnt) - ha->req_q_cnt = cnt - ha->req_ring_index; + if (req->cnt < (req_cnt + 2)) { + cnt = ha->isp_ops->rd_req_reg(ha, req->id); + + if (req->ring_index < cnt) + req->cnt = cnt - req->ring_index; else - ha->req_q_cnt = ha->request_q_length - - (ha->req_ring_index - cnt); + req->cnt = req->length - + (req->ring_index - cnt); } - if (ha->req_q_cnt < (req_cnt + 2)) + if (req->cnt < (req_cnt + 2)) goto queuing_error; /* Build command packet. */ - ha->current_outstanding_cmd = handle; - ha->outstanding_cmds[handle] = sp; - sp->ha = ha; + req->current_outstanding_cmd = handle; + req->outstanding_cmds[handle] = sp; + sp->vha = vha; sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; - ha->req_q_cnt -= req_cnt; + req->cnt -= req_cnt; - cmd_pkt = (struct cmd_type_7 *)ha->request_ring_ptr; + cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; cmd_pkt->handle = handle; /* Zero out remaining portion of packet. */ @@ -789,32 +828,63 @@ qla24xx_start_scsi(srb_t *sp) wmb(); /* Adjust ring index. */ - ha->req_ring_index++; - if (ha->req_ring_index == ha->request_q_length) { - ha->req_ring_index = 0; - ha->request_ring_ptr = ha->request_ring; + req->ring_index++; + if (req->ring_index == req->length) { + req->ring_index = 0; + req->ring_ptr = req->ring; } else - ha->request_ring_ptr++; + req->ring_ptr++; sp->flags |= SRB_DMA_VALID; /* Set chip new ring index. */ - WRT_REG_DWORD(®->req_q_in, ha->req_ring_index); - RD_REG_DWORD_RELAXED(®->req_q_in); /* PCI Posting. */ + ha->isp_ops->wrt_req_reg(ha, req->id, req->ring_index); /* Manage unprocessed RIO/ZIO commands in response queue. */ - if (ha->flags.process_response_queue && - ha->response_ring_ptr->signature != RESPONSE_PROCESSED) - qla24xx_process_response_queue(ha); + if (vha->flags.process_response_queue && + rsp->ring_ptr->signature != RESPONSE_PROCESSED) + qla24xx_process_response_queue(rsp); - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_SUCCESS; queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_FUNCTION_FAILED; } + +uint16_t +qla24xx_rd_req_reg(struct qla_hw_data *ha, uint16_t id) +{ + device_reg_t __iomem *reg = (void *) ha->iobase; + return RD_REG_DWORD_RELAXED(®->isp24.req_q_out); +} + +uint16_t +qla25xx_rd_req_reg(struct qla_hw_data *ha, uint16_t id) +{ + device_reg_t __iomem *reg = (void *) ha->mqiobase + QLA_QUE_PAGE * id; + return RD_REG_DWORD_RELAXED(®->isp25mq.req_q_out); +} + +void +qla24xx_wrt_req_reg(struct qla_hw_data *ha, uint16_t id, uint16_t index) +{ + device_reg_t __iomem *reg = (void *) ha->iobase; + WRT_REG_DWORD(®->isp24.req_q_in, index); + RD_REG_DWORD_RELAXED(®->isp24.req_q_in); +} + +void +qla25xx_wrt_req_reg(struct qla_hw_data *ha, uint16_t id, uint16_t index) +{ + device_reg_t __iomem *reg = (void *) ha->mqiobase + QLA_QUE_PAGE * id; + struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; + WRT_REG_DWORD(®->isp25mq.req_q_in, index); + RD_REG_DWORD(&ioreg->hccr); /* PCI posting */ +} + diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index a76efd9..d5fb79a 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -10,10 +10,13 @@ #include <scsi/scsi_tcq.h> static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); -static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t); -static void qla2x00_status_entry(scsi_qla_host_t *, void *); +static void qla2x00_process_completed_request(struct scsi_qla_host *, + struct req_que *, uint32_t); +static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *); static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *); -static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *); +static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *, + sts_entry_t *); +static struct scsi_qla_host *qla2x00_get_rsp_host(struct rsp_que *); /** * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. @@ -27,24 +30,28 @@ static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *); irqreturn_t qla2100_intr_handler(int irq, void *dev_id) { - scsi_qla_host_t *ha; + scsi_qla_host_t *vha; + struct qla_hw_data *ha; struct device_reg_2xxx __iomem *reg; int status; unsigned long iter; uint16_t hccr; uint16_t mb[4]; + struct rsp_que *rsp; - ha = (scsi_qla_host_t *) dev_id; - if (!ha) { + rsp = (struct rsp_que *) dev_id; + if (!rsp) { printk(KERN_INFO - "%s(): NULL host pointer\n", __func__); + "%s(): NULL response queue pointer\n", __func__); return (IRQ_NONE); } + ha = rsp->hw; reg = &ha->iobase->isp; status = 0; spin_lock(&ha->hardware_lock); + vha = qla2x00_get_rsp_host(rsp); for (iter = 50; iter--; ) { hccr = RD_REG_WORD(®->hccr); if (hccr & HCCR_RISC_PAUSE) { @@ -59,8 +66,8 @@ qla2100_intr_handler(int irq, void *dev_id) WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); RD_REG_WORD(®->hccr); - ha->isp_ops->fw_dump(ha, 1); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + ha->isp_ops->fw_dump(vha, 1); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); break; } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) break; @@ -72,24 +79,24 @@ qla2100_intr_handler(int irq, void *dev_id) /* Get mailbox data. */ mb[0] = RD_MAILBOX_REG(ha, reg, 0); if (mb[0] > 0x3fff && mb[0] < 0x8000) { - qla2x00_mbx_completion(ha, mb[0]); + qla2x00_mbx_completion(vha, mb[0]); status |= MBX_INTERRUPT; } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { mb[1] = RD_MAILBOX_REG(ha, reg, 1); mb[2] = RD_MAILBOX_REG(ha, reg, 2); mb[3] = RD_MAILBOX_REG(ha, reg, 3); - qla2x00_async_event(ha, mb); + qla2x00_async_event(vha, rsp, mb); } else { /*EMPTY*/ DEBUG2(printk("scsi(%ld): Unrecognized " "interrupt type (%d).\n", - ha->host_no, mb[0])); + vha->host_no, mb[0])); } /* Release mailbox registers. */ WRT_REG_WORD(®->semaphore, 0); RD_REG_WORD(®->semaphore); } else { - qla2x00_process_response_queue(ha); + qla2x00_process_response_queue(rsp); WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); RD_REG_WORD(®->hccr); @@ -118,25 +125,29 @@ qla2100_intr_handler(int irq, void *dev_id) irqreturn_t qla2300_intr_handler(int irq, void *dev_id) { - scsi_qla_host_t *ha; + scsi_qla_host_t *vha; struct device_reg_2xxx __iomem *reg; int status; unsigned long iter; uint32_t stat; uint16_t hccr; uint16_t mb[4]; + struct rsp_que *rsp; + struct qla_hw_data *ha; - ha = (scsi_qla_host_t *) dev_id; - if (!ha) { + rsp = (struct rsp_que *) dev_id; + if (!rsp) { printk(KERN_INFO - "%s(): NULL host pointer\n", __func__); + "%s(): NULL response queue pointer\n", __func__); return (IRQ_NONE); } + ha = rsp->hw; reg = &ha->iobase->isp; status = 0; spin_lock(&ha->hardware_lock); + vha = qla2x00_get_rsp_host(rsp); for (iter = 50; iter--; ) { stat = RD_REG_DWORD(®->u.isp2300.host_status); if (stat & HSR_RISC_PAUSED) { @@ -159,8 +170,8 @@ qla2300_intr_handler(int irq, void *dev_id) WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); RD_REG_WORD(®->hccr); - ha->isp_ops->fw_dump(ha, 1); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + ha->isp_ops->fw_dump(vha, 1); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); break; } else if ((stat & HSR_RISC_INT) == 0) break; @@ -170,7 +181,7 @@ qla2300_intr_handler(int irq, void *dev_id) case 0x2: case 0x10: case 0x11: - qla2x00_mbx_completion(ha, MSW(stat)); + qla2x00_mbx_completion(vha, MSW(stat)); status |= MBX_INTERRUPT; /* Release mailbox registers. */ @@ -181,26 +192,26 @@ qla2300_intr_handler(int irq, void *dev_id) mb[1] = RD_MAILBOX_REG(ha, reg, 1); mb[2] = RD_MAILBOX_REG(ha, reg, 2); mb[3] = RD_MAILBOX_REG(ha, reg, 3); - qla2x00_async_event(ha, mb); + qla2x00_async_event(vha, rsp, mb); break; case 0x13: - qla2x00_process_response_queue(ha); + qla2x00_process_response_queue(rsp); break; case 0x15: mb[0] = MBA_CMPLT_1_16BIT; mb[1] = MSW(stat); - qla2x00_async_event(ha, mb); + qla2x00_async_event(vha, rsp, mb); break; case 0x16: mb[0] = MBA_SCSI_COMPLETION; mb[1] = MSW(stat); mb[2] = RD_MAILBOX_REG(ha, reg, 2); - qla2x00_async_event(ha, mb); + qla2x00_async_event(vha, rsp, mb); break; default: DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " "(%d).\n", - ha->host_no, stat & 0xff)); + vha->host_no, stat & 0xff)); break; } WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); @@ -223,10 +234,11 @@ qla2300_intr_handler(int irq, void *dev_id) * @mb0: Mailbox0 register */ static void -qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) +qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) { uint16_t cnt; uint16_t __iomem *wptr; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; /* Load return mailbox registers. */ @@ -247,10 +259,10 @@ qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) if (ha->mcp) { DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", - __func__, ha->host_no, ha->mcp->mb[0])); + __func__, vha->host_no, ha->mcp->mb[0])); } else { DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", - __func__, ha->host_no)); + __func__, vha->host_no)); } } @@ -260,7 +272,7 @@ qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) * @mb: Mailbox registers (0 - 3) */ void -qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) +qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb) { #define LS_UNKNOWN 2 static char *link_speeds[5] = { "1", "2", "?", "4", "8" }; @@ -268,6 +280,7 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) uint16_t handle_cnt; uint16_t cnt; uint32_t handles[5]; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; uint32_t rscn_entry, host_pid; uint8_t rscn_queue_index; @@ -329,17 +342,19 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) switch (mb[0]) { case MBA_SCSI_COMPLETION: /* Fast Post */ - if (!ha->flags.online) + if (!vha->flags.online) break; for (cnt = 0; cnt < handle_cnt; cnt++) - qla2x00_process_completed_request(ha, handles[cnt]); + qla2x00_process_completed_request(vha, rsp->req, + handles[cnt]); break; case MBA_RESET: /* Reset */ - DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no)); + DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", + vha->host_no)); - set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); + set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); break; case MBA_SYSTEM_ERR: /* System Error */ @@ -347,70 +362,70 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n", mb[1], mb[2], mb[3]); - qla2x00_post_hwe_work(ha, mb[0], mb[1], mb[2], mb[3]); - ha->isp_ops->fw_dump(ha, 1); + qla2x00_post_hwe_work(vha, mb[0], mb[1], mb[2], mb[3]); + ha->isp_ops->fw_dump(vha, 1); if (IS_FWI2_CAPABLE(ha)) { if (mb[1] == 0 && mb[2] == 0) { qla_printk(KERN_ERR, ha, "Unrecoverable Hardware Error: adapter " "marked OFFLINE!\n"); - ha->flags.online = 0; + vha->flags.online = 0; } else - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); } else if (mb[1] == 0) { qla_printk(KERN_INFO, ha, "Unrecoverable Hardware Error: adapter marked " "OFFLINE!\n"); - ha->flags.online = 0; + vha->flags.online = 0; } else - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); break; case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n", - ha->host_no)); + vha->host_no)); qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n"); - qla2x00_post_hwe_work(ha, mb[0], mb[1], mb[2], mb[3]); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + qla2x00_post_hwe_work(vha, mb[0], mb[1], mb[2], mb[3]); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); break; case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n", - ha->host_no)); + vha->host_no)); qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n"); - qla2x00_post_hwe_work(ha, mb[0], mb[1], mb[2], mb[3]); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + qla2x00_post_hwe_work(vha, mb[0], mb[1], mb[2], mb[3]); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); break; case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n", - ha->host_no)); + vha->host_no)); break; case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ - DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", ha->host_no, + DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", vha->host_no, mb[1])); qla_printk(KERN_INFO, ha, "LIP occurred (%x).\n", mb[1]); - if (atomic_read(&ha->loop_state) != LOOP_DOWN) { - atomic_set(&ha->loop_state, LOOP_DOWN); - atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); - qla2x00_mark_all_devices_lost(ha, 1); + if (atomic_read(&vha->loop_state) != LOOP_DOWN) { + atomic_set(&vha->loop_state, LOOP_DOWN); + atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); + qla2x00_mark_all_devices_lost(vha, 1); } - if (ha->parent) { - atomic_set(&ha->vp_state, VP_FAILED); - fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); + if (vha->vp_idx) { + atomic_set(&vha->vp_state, VP_FAILED); + fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); } - set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); - set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags); + set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); + set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); - ha->flags.management_server_logged_in = 0; - qla2x00_post_aen_work(ha, FCH_EVT_LIP, mb[1]); + vha->flags.management_server_logged_in = 0; + qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]); break; case MBA_LOOP_UP: /* Loop Up Event */ @@ -425,59 +440,59 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) } DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n", - ha->host_no, link_speed)); + vha->host_no, link_speed)); qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n", link_speed); - ha->flags.management_server_logged_in = 0; - qla2x00_post_aen_work(ha, FCH_EVT_LINKUP, ha->link_data_rate); + vha->flags.management_server_logged_in = 0; + qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate); break; case MBA_LOOP_DOWN: /* Loop Down Event */ DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN " - "(%x %x %x).\n", ha->host_no, mb[1], mb[2], mb[3])); + "(%x %x %x).\n", vha->host_no, mb[1], mb[2], mb[3])); qla_printk(KERN_INFO, ha, "LOOP DOWN detected (%x %x %x).\n", mb[1], mb[2], mb[3]); - if (atomic_read(&ha->loop_state) != LOOP_DOWN) { - atomic_set(&ha->loop_state, LOOP_DOWN); - atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); - ha->device_flags |= DFLG_NO_CABLE; - qla2x00_mark_all_devices_lost(ha, 1); + if (atomic_read(&vha->loop_state) != LOOP_DOWN) { + atomic_set(&vha->loop_state, LOOP_DOWN); + atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); + vha->device_flags |= DFLG_NO_CABLE; + qla2x00_mark_all_devices_lost(vha, 1); } - if (ha->parent) { - atomic_set(&ha->vp_state, VP_FAILED); - fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); + if (vha->vp_idx) { + atomic_set(&vha->vp_state, VP_FAILED); + fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); } - ha->flags.management_server_logged_in = 0; + vha->flags.management_server_logged_in = 0; ha->link_data_rate = PORT_SPEED_UNKNOWN; - qla2x00_post_aen_work(ha, FCH_EVT_LINKDOWN, 0); + qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0); break; case MBA_LIP_RESET: /* LIP reset occurred */ DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n", - ha->host_no, mb[1])); + vha->host_no, mb[1])); qla_printk(KERN_INFO, ha, "LIP reset occurred (%x).\n", mb[1]); - if (atomic_read(&ha->loop_state) != LOOP_DOWN) { - atomic_set(&ha->loop_state, LOOP_DOWN); - atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); - qla2x00_mark_all_devices_lost(ha, 1); + if (atomic_read(&vha->loop_state) != LOOP_DOWN) { + atomic_set(&vha->loop_state, LOOP_DOWN); + atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); + qla2x00_mark_all_devices_lost(vha, 1); } - if (ha->parent) { - atomic_set(&ha->vp_state, VP_FAILED); - fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); + if (vha->vp_idx) { + atomic_set(&vha->vp_state, VP_FAILED); + fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); } - set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); + set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); ha->operating_mode = LOOP; - ha->flags.management_server_logged_in = 0; - qla2x00_post_aen_work(ha, FCH_EVT_LIPRESET, mb[1]); + vha->flags.management_server_logged_in = 0; + qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]); break; case MBA_POINT_TO_POINT: /* Point-to-Point */ @@ -485,33 +500,33 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) break; DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n", - ha->host_no)); + vha->host_no)); /* * Until there's a transition from loop down to loop up, treat * this as loop down only. */ - if (atomic_read(&ha->loop_state) != LOOP_DOWN) { - atomic_set(&ha->loop_state, LOOP_DOWN); - if (!atomic_read(&ha->loop_down_timer)) - atomic_set(&ha->loop_down_timer, + if (atomic_read(&vha->loop_state) != LOOP_DOWN) { + atomic_set(&vha->loop_state, LOOP_DOWN); + if (!atomic_read(&vha->loop_down_timer)) + atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); - qla2x00_mark_all_devices_lost(ha, 1); + qla2x00_mark_all_devices_lost(vha, 1); } - if (ha->parent) { - atomic_set(&ha->vp_state, VP_FAILED); - fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); + if (vha->vp_idx) { + atomic_set(&vha->vp_state, VP_FAILED); + fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); } - if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { - set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); - } - set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); - set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags); + if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) + set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); + + set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); + set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); ha->flags.gpsc_supported = 1; - ha->flags.management_server_logged_in = 0; + vha->flags.management_server_logged_in = 0; break; case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ @@ -520,134 +535,137 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection " "received.\n", - ha->host_no)); + vha->host_no)); qla_printk(KERN_INFO, ha, "Configuration change detected: value=%x.\n", mb[1]); - if (atomic_read(&ha->loop_state) != LOOP_DOWN) { - atomic_set(&ha->loop_state, LOOP_DOWN); - if (!atomic_read(&ha->loop_down_timer)) - atomic_set(&ha->loop_down_timer, + if (atomic_read(&vha->loop_state) != LOOP_DOWN) { + atomic_set(&vha->loop_state, LOOP_DOWN); + if (!atomic_read(&vha->loop_down_timer)) + atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); - qla2x00_mark_all_devices_lost(ha, 1); + qla2x00_mark_all_devices_lost(vha, 1); } - if (ha->parent) { - atomic_set(&ha->vp_state, VP_FAILED); - fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); + if (vha->vp_idx) { + atomic_set(&vha->vp_state, VP_FAILED); + fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); } - set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); - set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); + set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); + set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); break; case MBA_PORT_UPDATE: /* Port database update */ + /* Only handle SCNs for our Vport index. */ + if (vha->vp_idx && vha->vp_idx != (mb[3] & 0xff)) + break; + /* * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET * event etc. earlier indicating loop is down) then process * it. Otherwise ignore it and Wait for RSCN to come in. */ - atomic_set(&ha->loop_down_timer, 0); - if (atomic_read(&ha->loop_state) != LOOP_DOWN && - atomic_read(&ha->loop_state) != LOOP_DEAD) { + atomic_set(&vha->loop_down_timer, 0); + if (atomic_read(&vha->loop_state) != LOOP_DOWN && + atomic_read(&vha->loop_state) != LOOP_DEAD) { DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE " - "ignored %04x/%04x/%04x.\n", ha->host_no, mb[1], + "ignored %04x/%04x/%04x.\n", vha->host_no, mb[1], mb[2], mb[3])); break; } DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", - ha->host_no)); + vha->host_no)); DEBUG(printk(KERN_INFO "scsi(%ld): Port database changed %04x %04x %04x.\n", - ha->host_no, mb[1], mb[2], mb[3])); + vha->host_no, mb[1], mb[2], mb[3])); /* * Mark all devices as missing so we will login again. */ - atomic_set(&ha->loop_state, LOOP_UP); + atomic_set(&vha->loop_state, LOOP_UP); - qla2x00_mark_all_devices_lost(ha, 1); + qla2x00_mark_all_devices_lost(vha, 1); - ha->flags.rscn_queue_overflow = 1; + vha->flags.rscn_queue_overflow = 1; - set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); - set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); + set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); + set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); break; case MBA_RSCN_UPDATE: /* State Change Registration */ /* Check if the Vport has issued a SCR */ - if (ha->parent && test_bit(VP_SCR_NEEDED, &ha->vp_flags)) + if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags)) break; /* Only handle SCNs for our Vport index. */ - if (ha->parent && ha->vp_idx != (mb[3] & 0xff)) + if (vha->vp_idx && vha->vp_idx != (mb[3] & 0xff)) break; - DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n", - ha->host_no)); + vha->host_no)); DEBUG(printk(KERN_INFO "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n", - ha->host_no, mb[1], mb[2], mb[3])); + vha->host_no, mb[1], mb[2], mb[3])); rscn_entry = ((mb[1] & 0xff) << 16) | mb[2]; - host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) | - ha->d_id.b.al_pa; + host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8) + | vha->d_id.b.al_pa; if (rscn_entry == host_pid) { DEBUG(printk(KERN_INFO "scsi(%ld): Ignoring RSCN update to local host " "port ID (%06x)\n", - ha->host_no, host_pid)); + vha->host_no, host_pid)); break; } /* Ignore reserved bits from RSCN-payload. */ rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2]; - rscn_queue_index = ha->rscn_in_ptr + 1; + rscn_queue_index = vha->rscn_in_ptr + 1; if (rscn_queue_index == MAX_RSCN_COUNT) rscn_queue_index = 0; - if (rscn_queue_index != ha->rscn_out_ptr) { - ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry; - ha->rscn_in_ptr = rscn_queue_index; + if (rscn_queue_index != vha->rscn_out_ptr) { + vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry; + vha->rscn_in_ptr = rscn_queue_index; } else { - ha->flags.rscn_queue_overflow = 1; + vha->flags.rscn_queue_overflow = 1; } - atomic_set(&ha->loop_state, LOOP_UPDATE); - atomic_set(&ha->loop_down_timer, 0); - ha->flags.management_server_logged_in = 0; + atomic_set(&vha->loop_state, LOOP_UPDATE); + atomic_set(&vha->loop_down_timer, 0); + vha->flags.management_server_logged_in = 0; - set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); - set_bit(RSCN_UPDATE, &ha->dpc_flags); - qla2x00_post_aen_work(ha, FCH_EVT_RSCN, rscn_entry); + set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); + set_bit(RSCN_UPDATE, &vha->dpc_flags); + qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry); break; /* case MBA_RIO_RESPONSE: */ case MBA_ZIO_RESPONSE: DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n", - ha->host_no)); + vha->host_no)); DEBUG(printk(KERN_INFO "scsi(%ld): [R|Z]IO update completion.\n", - ha->host_no)); + vha->host_no)); if (IS_FWI2_CAPABLE(ha)) - qla24xx_process_response_queue(ha); + qla24xx_process_response_queue(rsp); else - qla2x00_process_response_queue(ha); + qla2x00_process_response_queue(rsp); break; case MBA_DISCARD_RND_FRAME: DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x " - "%04x.\n", ha->host_no, mb[1], mb[2], mb[3])); + "%04x.\n", vha->host_no, mb[1], mb[2], mb[3])); break; case MBA_TRACE_NOTIFICATION: DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n", - ha->host_no, mb[1], mb[2])); + vha->host_no, mb[1], mb[2])); break; case MBA_ISP84XX_ALERT: DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- " - "%04x %04x %04x\n", ha->host_no, mb[1], mb[2], mb[3])); + "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); spin_lock_irqsave(&ha->cs84xx->access_lock, flags); switch (mb[1]) { @@ -682,16 +700,22 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) break; } - if (!ha->parent && ha->num_vhosts) - qla2x00_alert_all_vps(ha, mb); + if (!vha->vp_idx && ha->num_vhosts) + qla2x00_alert_all_vps(rsp, mb); } static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, void *data) { fc_port_t *fcport = data; + struct scsi_qla_host *vha = fcport->vha; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = NULL; - if (fcport->ha->max_q_depth <= sdev->queue_depth) + req = ha->req_q_map[vha->req_ques[0]]; + if (!req) + return; + if (req->max_q_depth <= sdev->queue_depth) return; if (sdev->ordered_tags) @@ -703,9 +727,9 @@ qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, void *data) fcport->last_ramp_up = jiffies; - DEBUG2(qla_printk(KERN_INFO, fcport->ha, + DEBUG2(qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n", - fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun, + fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun, sdev->queue_depth)); } @@ -717,20 +741,21 @@ qla2x00_adjust_sdev_qdepth_down(struct scsi_device *sdev, void *data) if (!scsi_track_queue_full(sdev, sdev->queue_depth - 1)) return; - DEBUG2(qla_printk(KERN_INFO, fcport->ha, + DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw, "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n", - fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun, + fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun, sdev->queue_depth)); } static inline void -qla2x00_ramp_up_queue_depth(scsi_qla_host_t *ha, srb_t *sp) +qla2x00_ramp_up_queue_depth(scsi_qla_host_t *vha, struct req_que *req, + srb_t *sp) { fc_port_t *fcport; struct scsi_device *sdev; sdev = sp->cmd->device; - if (sdev->queue_depth >= ha->max_q_depth) + if (sdev->queue_depth >= req->max_q_depth) return; fcport = sp->fcport; @@ -751,25 +776,27 @@ qla2x00_ramp_up_queue_depth(scsi_qla_host_t *ha, srb_t *sp) * @index: SRB index */ static void -qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index) +qla2x00_process_completed_request(struct scsi_qla_host *vha, + struct req_que *req, uint32_t index) { srb_t *sp; + struct qla_hw_data *ha = vha->hw; /* Validate handle. */ if (index >= MAX_OUTSTANDING_COMMANDS) { DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n", - ha->host_no, index)); + vha->host_no, index)); qla_printk(KERN_WARNING, ha, "Invalid SCSI completion handle %d.\n", index); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); return; } - sp = ha->outstanding_cmds[index]; + sp = req->outstanding_cmds[index]; if (sp) { /* Free outstanding command slot. */ - ha->outstanding_cmds[index] = NULL; + req->outstanding_cmds[index] = NULL; CMD_COMPL_STATUS(sp->cmd) = 0L; CMD_SCSI_STATUS(sp->cmd) = 0L; @@ -777,15 +804,15 @@ qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index) /* Save ISP completion status */ sp->cmd->result = DID_OK << 16; - qla2x00_ramp_up_queue_depth(ha, sp); + qla2x00_ramp_up_queue_depth(vha, req, sp); qla2x00_sp_compl(ha, sp); } else { DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n", - ha->host_no)); + vha->host_no)); qla_printk(KERN_WARNING, ha, "Invalid ISP SCSI completion handle\n"); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); } } @@ -794,32 +821,36 @@ qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index) * @ha: SCSI driver HA context */ void -qla2x00_process_response_queue(struct scsi_qla_host *ha) +qla2x00_process_response_queue(struct rsp_que *rsp) { + struct scsi_qla_host *vha; + struct qla_hw_data *ha = rsp->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; sts_entry_t *pkt; uint16_t handle_cnt; uint16_t cnt; - if (!ha->flags.online) + vha = qla2x00_get_rsp_host(rsp); + + if (!vha->flags.online) return; - while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { - pkt = (sts_entry_t *)ha->response_ring_ptr; + while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { + pkt = (sts_entry_t *)rsp->ring_ptr; - ha->rsp_ring_index++; - if (ha->rsp_ring_index == ha->response_q_length) { - ha->rsp_ring_index = 0; - ha->response_ring_ptr = ha->response_ring; + rsp->ring_index++; + if (rsp->ring_index == rsp->length) { + rsp->ring_index = 0; + rsp->ring_ptr = rsp->ring; } else { - ha->response_ring_ptr++; + rsp->ring_ptr++; } if (pkt->entry_status != 0) { DEBUG3(printk(KERN_INFO - "scsi(%ld): Process error entry.\n", ha->host_no)); + "scsi(%ld): Process error entry.\n", vha->host_no)); - qla2x00_error_entry(ha, pkt); + qla2x00_error_entry(vha, rsp, pkt); ((response_t *)pkt)->signature = RESPONSE_PROCESSED; wmb(); continue; @@ -827,31 +858,31 @@ qla2x00_process_response_queue(struct scsi_qla_host *ha) switch (pkt->entry_type) { case STATUS_TYPE: - qla2x00_status_entry(ha, pkt); + qla2x00_status_entry(vha, rsp, pkt); break; case STATUS_TYPE_21: handle_cnt = ((sts21_entry_t *)pkt)->handle_count; for (cnt = 0; cnt < handle_cnt; cnt++) { - qla2x00_process_completed_request(ha, + qla2x00_process_completed_request(vha, rsp->req, ((sts21_entry_t *)pkt)->handle[cnt]); } break; case STATUS_TYPE_22: handle_cnt = ((sts22_entry_t *)pkt)->handle_count; for (cnt = 0; cnt < handle_cnt; cnt++) { - qla2x00_process_completed_request(ha, + qla2x00_process_completed_request(vha, rsp->req, ((sts22_entry_t *)pkt)->handle[cnt]); } break; case STATUS_CONT_TYPE: - qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt); + qla2x00_status_cont_entry(vha, (sts_cont_entry_t *)pkt); break; default: /* Type Not Supported. */ DEBUG4(printk(KERN_WARNING "scsi(%ld): Received unknown response pkt type %x " "entry status=%x.\n", - ha->host_no, pkt->entry_type, pkt->entry_status)); + vha->host_no, pkt->entry_type, pkt->entry_status)); break; } ((response_t *)pkt)->signature = RESPONSE_PROCESSED; @@ -859,7 +890,7 @@ qla2x00_process_response_queue(struct scsi_qla_host *ha) } /* Adjust ring index */ - WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index); + WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index); } static inline void @@ -881,10 +912,10 @@ qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t sense_len) sp->request_sense_ptr += sense_len; sp->request_sense_length -= sense_len; if (sp->request_sense_length != 0) - sp->fcport->ha->status_srb = sp; + sp->fcport->vha->status_srb = sp; DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) " - "cmd=%p pid=%ld\n", __func__, sp->fcport->ha->host_no, + "cmd=%p pid=%ld\n", __func__, sp->fcport->vha->host_no, cp->device->channel, cp->device->id, cp->device->lun, cp, cp->serial_number)); if (sense_len) @@ -898,7 +929,7 @@ qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t sense_len) * @pkt: Entry pointer */ static void -qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) +qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) { srb_t *sp; fc_port_t *fcport; @@ -911,6 +942,8 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) int32_t resid; uint32_t sense_len, rsp_info_len, resid_len, fw_resid_len; uint8_t *rsp_info, *sense_data; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = rsp->req; sts = (sts_entry_t *) pkt; sts24 = (struct sts_entry_24xx *) pkt; @@ -924,31 +957,31 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) /* Fast path completion. */ if (comp_status == CS_COMPLETE && scsi_status == 0) { - qla2x00_process_completed_request(ha, sts->handle); + qla2x00_process_completed_request(vha, req, sts->handle); return; } /* Validate handle. */ if (sts->handle < MAX_OUTSTANDING_COMMANDS) { - sp = ha->outstanding_cmds[sts->handle]; - ha->outstanding_cmds[sts->handle] = NULL; + sp = req->outstanding_cmds[sts->handle]; + req->outstanding_cmds[sts->handle] = NULL; } else sp = NULL; if (sp == NULL) { DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n", - ha->host_no)); + vha->host_no)); qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n"); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); - qla2xxx_wake_dpc(ha); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); + qla2xxx_wake_dpc(vha); return; } cp = sp->cmd; if (cp == NULL) { DEBUG2(printk("scsi(%ld): Command already returned back to OS " - "pkt->handle=%d sp=%p.\n", ha->host_no, sts->handle, sp)); + "pkt->handle=%d sp=%p.\n", vha->host_no, sts->handle, sp)); qla_printk(KERN_WARNING, ha, "Command is NULL: already returned to OS (sp=%p)\n", sp); @@ -987,7 +1020,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) if (rsp_info_len > 3 && rsp_info[3]) { DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol " "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..." - "retrying command\n", ha->host_no, + "retrying command\n", vha->host_no, cp->device->channel, cp->device->id, cp->device->lun, rsp_info_len, rsp_info[0], rsp_info[1], rsp_info[2], rsp_info[3], rsp_info[4], @@ -1025,7 +1058,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d:%d): Mid-layer underflow " "detected (%x of %x bytes)...returning " - "error status.\n", ha->host_no, + "error status.\n", vha->host_no, cp->device->channel, cp->device->id, cp->device->lun, resid, scsi_bufflen(cp)); @@ -1039,7 +1072,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) if (lscsi_status == SAM_STAT_TASK_SET_FULL) { DEBUG2(printk(KERN_INFO "scsi(%ld): QUEUE FULL status detected " - "0x%x-0x%x.\n", ha->host_no, comp_status, + "0x%x-0x%x.\n", vha->host_no, comp_status, scsi_status)); /* Adjust queue depth for all luns on the port. */ @@ -1078,7 +1111,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) DEBUG2(printk(KERN_INFO "scsi(%ld:%d:%d) UNDERRUN status detected " "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x " - "os_underflow=0x%x\n", ha->host_no, + "os_underflow=0x%x\n", vha->host_no, cp->device->id, cp->device->lun, comp_status, scsi_status, resid_len, resid, cp->cmnd[0], cp->underflow)); @@ -1095,7 +1128,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) if (lscsi_status == SAM_STAT_TASK_SET_FULL) { DEBUG2(printk(KERN_INFO "scsi(%ld): QUEUE FULL status detected " - "0x%x-0x%x.\n", ha->host_no, comp_status, + "0x%x-0x%x.\n", vha->host_no, comp_status, scsi_status)); /* @@ -1125,10 +1158,10 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) if (!(scsi_status & SS_RESIDUAL_UNDER)) { DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped " "frame(s) detected (%x of %x bytes)..." - "retrying command.\n", ha->host_no, - cp->device->channel, cp->device->id, - cp->device->lun, resid, - scsi_bufflen(cp))); + "retrying command.\n", + vha->host_no, cp->device->channel, + cp->device->id, cp->device->lun, resid, + scsi_bufflen(cp))); cp->result = DID_BUS_BUSY << 16; break; @@ -1140,7 +1173,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d:%d): Mid-layer underflow " "detected (%x of %x bytes)...returning " - "error status.\n", ha->host_no, + "error status.\n", vha->host_no, cp->device->channel, cp->device->id, cp->device->lun, resid, scsi_bufflen(cp)); @@ -1157,7 +1190,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) case CS_DATA_OVERRUN: DEBUG2(printk(KERN_INFO "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n", - ha->host_no, cp->device->id, cp->device->lun, comp_status, + vha->host_no, cp->device->id, cp->device->lun, comp_status, scsi_status)); DEBUG2(printk(KERN_INFO "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", @@ -1183,7 +1216,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) */ DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down " "pid=%ld, compl status=0x%x, port state=0x%x\n", - ha->host_no, cp->device->id, cp->device->lun, + vha->host_no, cp->device->id, cp->device->lun, cp->serial_number, comp_status, atomic_read(&fcport->state))); @@ -1194,13 +1227,13 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) */ cp->result = DID_TRANSPORT_DISRUPTED << 16; if (atomic_read(&fcport->state) == FCS_ONLINE) - qla2x00_mark_device_lost(fcport->ha, fcport, 1, 1); + qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); break; case CS_RESET: DEBUG2(printk(KERN_INFO "scsi(%ld): RESET status detected 0x%x-0x%x.\n", - ha->host_no, comp_status, scsi_status)); + vha->host_no, comp_status, scsi_status)); cp->result = DID_RESET << 16; break; @@ -1213,7 +1246,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) */ DEBUG2(printk(KERN_INFO "scsi(%ld): ABORT status detected 0x%x-0x%x.\n", - ha->host_no, comp_status, scsi_status)); + vha->host_no, comp_status, scsi_status)); cp->result = DID_RESET << 16; break; @@ -1229,25 +1262,25 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) if (IS_FWI2_CAPABLE(ha)) { DEBUG2(printk(KERN_INFO "scsi(%ld:%d:%d:%d): TIMEOUT status detected " - "0x%x-0x%x\n", ha->host_no, cp->device->channel, + "0x%x-0x%x\n", vha->host_no, cp->device->channel, cp->device->id, cp->device->lun, comp_status, scsi_status)); break; } DEBUG2(printk(KERN_INFO "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x " - "sflags=%x.\n", ha->host_no, cp->device->channel, + "sflags=%x.\n", vha->host_no, cp->device->channel, cp->device->id, cp->device->lun, comp_status, scsi_status, le16_to_cpu(sts->status_flags))); /* Check to see if logout occurred. */ if ((le16_to_cpu(sts->status_flags) & SF_LOGOUT_SENT)) - qla2x00_mark_device_lost(fcport->ha, fcport, 1, 1); + qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); break; default: DEBUG3(printk("scsi(%ld): Error detected (unknown status) " - "0x%x-0x%x.\n", ha->host_no, comp_status, scsi_status)); + "0x%x-0x%x.\n", vha->host_no, comp_status, scsi_status)); qla_printk(KERN_INFO, ha, "Unknown status detected 0x%x-0x%x.\n", comp_status, scsi_status); @@ -1257,7 +1290,7 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) } /* Place command on done queue. */ - if (ha->status_srb == NULL) + if (vha->status_srb == NULL) qla2x00_sp_compl(ha, sp); } @@ -1269,10 +1302,11 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) * Extended sense data. */ static void -qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) +qla2x00_status_cont_entry(scsi_qla_host_t *vha, sts_cont_entry_t *pkt) { uint8_t sense_sz = 0; - srb_t *sp = ha->status_srb; + struct qla_hw_data *ha = vha->hw; + srb_t *sp = vha->status_srb; struct scsi_cmnd *cp; if (sp != NULL && sp->request_sense_length != 0) { @@ -1284,7 +1318,7 @@ qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) "cmd is NULL: already returned to OS (sp=%p)\n", sp); - ha->status_srb = NULL; + vha->status_srb = NULL; return; } @@ -1305,7 +1339,7 @@ qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) /* Place command on done queue. */ if (sp->request_sense_length == 0) { - ha->status_srb = NULL; + vha->status_srb = NULL; qla2x00_sp_compl(ha, sp); } } @@ -1317,10 +1351,11 @@ qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) * @pkt: Entry pointer */ static void -qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) +qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) { srb_t *sp; - + struct qla_hw_data *ha = vha->hw; + struct req_que *req = rsp->req; #if defined(QL_DEBUG_LEVEL_2) if (pkt->entry_status & RF_INV_E_ORDER) qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__); @@ -1339,13 +1374,13 @@ qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) /* Validate handle. */ if (pkt->handle < MAX_OUTSTANDING_COMMANDS) - sp = ha->outstanding_cmds[pkt->handle]; + sp = req->outstanding_cmds[pkt->handle]; else sp = NULL; if (sp) { /* Free outstanding command slot. */ - ha->outstanding_cmds[pkt->handle] = NULL; + req->outstanding_cmds[pkt->handle] = NULL; /* Bad payload or header */ if (pkt->entry_status & @@ -1362,12 +1397,12 @@ qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type == COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) { DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n", - ha->host_no)); + vha->host_no)); qla_printk(KERN_WARNING, ha, "Error entry - invalid handle\n"); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); - qla2xxx_wake_dpc(ha); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); + qla2xxx_wake_dpc(vha); } } @@ -1377,10 +1412,11 @@ qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) * @mb0: Mailbox0 register */ static void -qla24xx_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) +qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) { uint16_t cnt; uint16_t __iomem *wptr; + struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; /* Load return mailbox registers. */ @@ -1395,10 +1431,10 @@ qla24xx_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) if (ha->mcp) { DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", - __func__, ha->host_no, ha->mcp->mb[0])); + __func__, vha->host_no, ha->mcp->mb[0])); } else { DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", - __func__, ha->host_no)); + __func__, vha->host_no)); } } @@ -1407,30 +1443,33 @@ qla24xx_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) * @ha: SCSI driver HA context */ void -qla24xx_process_response_queue(struct scsi_qla_host *ha) +qla24xx_process_response_queue(struct rsp_que *rsp) { - struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; + struct qla_hw_data *ha = rsp->hw; struct sts_entry_24xx *pkt; + struct scsi_qla_host *vha; + + vha = qla2x00_get_rsp_host(rsp); - if (!ha->flags.online) + if (!vha->flags.online) return; - while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { - pkt = (struct sts_entry_24xx *)ha->response_ring_ptr; + while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { + pkt = (struct sts_entry_24xx *)rsp->ring_ptr; - ha->rsp_ring_index++; - if (ha->rsp_ring_index == ha->response_q_length) { - ha->rsp_ring_index = 0; - ha->response_ring_ptr = ha->response_ring; + rsp->ring_index++; + if (rsp->ring_index == rsp->length) { + rsp->ring_index = 0; + rsp->ring_ptr = rsp->ring; } else { - ha->response_ring_ptr++; + rsp->ring_ptr++; } if (pkt->entry_status != 0) { DEBUG3(printk(KERN_INFO - "scsi(%ld): Process error entry.\n", ha->host_no)); + "scsi(%ld): Process error entry.\n", vha->host_no)); - qla2x00_error_entry(ha, (sts_entry_t *) pkt); + qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt); ((response_t *)pkt)->signature = RESPONSE_PROCESSED; wmb(); continue; @@ -1438,13 +1477,13 @@ qla24xx_process_response_queue(struct scsi_qla_host *ha) switch (pkt->entry_type) { case STATUS_TYPE: - qla2x00_status_entry(ha, pkt); + qla2x00_status_entry(vha, rsp, pkt); break; case STATUS_CONT_TYPE: - qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt); + qla2x00_status_cont_entry(vha, (sts_cont_entry_t *)pkt); break; case VP_RPT_ID_IOCB_TYPE: - qla24xx_report_id_acquisition(ha, + qla24xx_report_id_acquisition(vha, (struct vp_rpt_id_entry_24xx *)pkt); break; default: @@ -1452,7 +1491,7 @@ qla24xx_process_response_queue(struct scsi_qla_host *ha) DEBUG4(printk(KERN_WARNING "scsi(%ld): Received unknown response pkt type %x " "entry status=%x.\n", - ha->host_no, pkt->entry_type, pkt->entry_status)); + vha->host_no, pkt->entry_type, pkt->entry_status)); break; } ((response_t *)pkt)->signature = RESPONSE_PROCESSED; @@ -1460,14 +1499,15 @@ qla24xx_process_response_queue(struct scsi_qla_host *ha) } /* Adjust ring index */ - WRT_REG_DWORD(®->rsp_q_out, ha->rsp_ring_index); + ha->isp_ops->wrt_rsp_reg(ha, rsp->id, rsp->ring_index); } static void -qla2xxx_check_risc_status(scsi_qla_host_t *ha) +qla2xxx_check_risc_status(scsi_qla_host_t *vha) { int rval; uint32_t cnt; + struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; if (!IS_QLA25XX(ha)) @@ -1521,25 +1561,29 @@ done: irqreturn_t qla24xx_intr_handler(int irq, void *dev_id) { - scsi_qla_host_t *ha; + scsi_qla_host_t *vha; + struct qla_hw_data *ha; struct device_reg_24xx __iomem *reg; int status; unsigned long iter; uint32_t stat; uint32_t hccr; uint16_t mb[4]; + struct rsp_que *rsp; - ha = (scsi_qla_host_t *) dev_id; - if (!ha) { + rsp = (struct rsp_que *) dev_id; + if (!rsp) { printk(KERN_INFO - "%s(): NULL host pointer\n", __func__); + "%s(): NULL response queue pointer\n", __func__); return IRQ_NONE; } + ha = rsp->hw; reg = &ha->iobase->isp24; status = 0; spin_lock(&ha->hardware_lock); + vha = qla2x00_get_rsp_host(rsp); for (iter = 50; iter--; ) { stat = RD_REG_DWORD(®->host_status); if (stat & HSRX_RISC_PAUSED) { @@ -1547,7 +1591,7 @@ qla24xx_intr_handler(int irq, void *dev_id) break; if (ha->hw_event_pause_errors == 0) - qla2x00_post_hwe_work(ha, HW_EVENT_PARITY_ERR, + qla2x00_post_hwe_work(vha, HW_EVENT_PARITY_ERR, 0, MSW(stat), LSW(stat)); else if (ha->hw_event_pause_errors < 0xffffffff) ha->hw_event_pause_errors++; @@ -1557,10 +1601,10 @@ qla24xx_intr_handler(int irq, void *dev_id) qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " "Dumping firmware!\n", hccr); - qla2xxx_check_risc_status(ha); + qla2xxx_check_risc_status(vha); - ha->isp_ops->fw_dump(ha, 1); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + ha->isp_ops->fw_dump(vha, 1); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); break; } else if ((stat & HSRX_RISC_INT) == 0) break; @@ -1570,7 +1614,7 @@ qla24xx_intr_handler(int irq, void *dev_id) case 0x2: case 0x10: case 0x11: - qla24xx_mbx_completion(ha, MSW(stat)); + qla24xx_mbx_completion(vha, MSW(stat)); status |= MBX_INTERRUPT; break; @@ -1579,15 +1623,16 @@ qla24xx_intr_handler(int irq, void *dev_id) mb[1] = RD_REG_WORD(®->mailbox1); mb[2] = RD_REG_WORD(®->mailbox2); mb[3] = RD_REG_WORD(®->mailbox3); - qla2x00_async_event(ha, mb); + qla2x00_async_event(vha, rsp, mb); break; case 0x13: - qla24xx_process_response_queue(ha); + case 0x14: + qla24xx_process_response_queue(rsp); break; default: DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " "(%d).\n", - ha->host_no, stat & 0xff)); + vha->host_no, stat & 0xff)); break; } WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); @@ -1607,15 +1652,22 @@ qla24xx_intr_handler(int irq, void *dev_id) static irqreturn_t qla24xx_msix_rsp_q(int irq, void *dev_id) { - scsi_qla_host_t *ha; + struct qla_hw_data *ha; + struct rsp_que *rsp; struct device_reg_24xx __iomem *reg; - ha = dev_id; + rsp = (struct rsp_que *) dev_id; + if (!rsp) { + printk(KERN_INFO + "%s(): NULL response queue pointer\n", __func__); + return IRQ_NONE; + } + ha = rsp->hw; reg = &ha->iobase->isp24; spin_lock_irq(&ha->hardware_lock); - qla24xx_process_response_queue(ha); + qla24xx_process_response_queue(rsp); WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); spin_unlock_irq(&ha->hardware_lock); @@ -1624,20 +1676,64 @@ qla24xx_msix_rsp_q(int irq, void *dev_id) } static irqreturn_t +qla25xx_msix_rsp_q(int irq, void *dev_id) +{ + struct qla_hw_data *ha; + struct rsp_que *rsp; + struct device_reg_24xx __iomem *reg; + uint16_t msix_disabled_hccr = 0; + + rsp = (struct rsp_que *) dev_id; + if (!rsp) { + printk(KERN_INFO + "%s(): NULL response queue pointer\n", __func__); + return IRQ_NONE; + } + ha = rsp->hw; + reg = &ha->iobase->isp24; + + spin_lock_irq(&ha->hardware_lock); + + msix_disabled_hccr = rsp->options; + if (!rsp->id) + msix_disabled_hccr &= __constant_cpu_to_le32(BIT_22); + else + msix_disabled_hccr &= __constant_cpu_to_le32(BIT_6); + + qla24xx_process_response_queue(rsp); + + if (!msix_disabled_hccr) + WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); + + spin_unlock_irq(&ha->hardware_lock); + + return IRQ_HANDLED; +} + +static irqreturn_t qla24xx_msix_default(int irq, void *dev_id) { - scsi_qla_host_t *ha; + scsi_qla_host_t *vha; + struct qla_hw_data *ha; + struct rsp_que *rsp; struct device_reg_24xx __iomem *reg; int status; uint32_t stat; uint32_t hccr; uint16_t mb[4]; - ha = dev_id; + rsp = (struct rsp_que *) dev_id; + if (!rsp) { + DEBUG(printk( + "%s(): NULL response queue pointer\n", __func__)); + return IRQ_NONE; + } + ha = rsp->hw; reg = &ha->iobase->isp24; status = 0; spin_lock_irq(&ha->hardware_lock); + vha = qla2x00_get_rsp_host(rsp); do { stat = RD_REG_DWORD(®->host_status); if (stat & HSRX_RISC_PAUSED) { @@ -1645,7 +1741,7 @@ qla24xx_msix_default(int irq, void *dev_id) break; if (ha->hw_event_pause_errors == 0) - qla2x00_post_hwe_work(ha, HW_EVENT_PARITY_ERR, + qla2x00_post_hwe_work(vha, HW_EVENT_PARITY_ERR, 0, MSW(stat), LSW(stat)); else if (ha->hw_event_pause_errors < 0xffffffff) ha->hw_event_pause_errors++; @@ -1655,10 +1751,10 @@ qla24xx_msix_default(int irq, void *dev_id) qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " "Dumping firmware!\n", hccr); - qla2xxx_check_risc_status(ha); + qla2xxx_check_risc_status(vha); - ha->isp_ops->fw_dump(ha, 1); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + ha->isp_ops->fw_dump(vha, 1); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); break; } else if ((stat & HSRX_RISC_INT) == 0) break; @@ -1668,7 +1764,7 @@ qla24xx_msix_default(int irq, void *dev_id) case 0x2: case 0x10: case 0x11: - qla24xx_mbx_completion(ha, MSW(stat)); + qla24xx_mbx_completion(vha, MSW(stat)); status |= MBX_INTERRUPT; break; @@ -1677,15 +1773,16 @@ qla24xx_msix_default(int irq, void *dev_id) mb[1] = RD_REG_WORD(®->mailbox1); mb[2] = RD_REG_WORD(®->mailbox2); mb[3] = RD_REG_WORD(®->mailbox3); - qla2x00_async_event(ha, mb); + qla2x00_async_event(vha, rsp, mb); break; case 0x13: - qla24xx_process_response_queue(ha); + case 0x14: + qla24xx_process_response_queue(rsp); break; default: DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " "(%d).\n", - ha->host_no, stat & 0xff)); + vha->host_no, stat & 0xff)); break; } WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); @@ -1710,70 +1807,138 @@ struct qla_init_msix_entry { irq_handler_t handler; }; -static struct qla_init_msix_entry imsix_entries[QLA_MSIX_ENTRIES] = { - { QLA_MSIX_DEFAULT, QLA_MIDX_DEFAULT, - "qla2xxx (default)", qla24xx_msix_default }, +static struct qla_init_msix_entry base_queue = { + .entry = 0, + .index = 0, + .name = "qla2xxx (default)", + .handler = qla24xx_msix_default, +}; + +static struct qla_init_msix_entry base_rsp_queue = { + .entry = 1, + .index = 1, + .name = "qla2xxx (rsp_q)", + .handler = qla24xx_msix_rsp_q, +}; - { QLA_MSIX_RSP_Q, QLA_MIDX_RSP_Q, - "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, +static struct qla_init_msix_entry multi_rsp_queue = { + .entry = 1, + .index = 1, + .name = "qla2xxx (multi_q)", + .handler = qla25xx_msix_rsp_q, }; static void -qla24xx_disable_msix(scsi_qla_host_t *ha) +qla24xx_disable_msix(struct qla_hw_data *ha) { int i; struct qla_msix_entry *qentry; - for (i = 0; i < QLA_MSIX_ENTRIES; i++) { - qentry = &ha->msix_entries[imsix_entries[i].index]; + for (i = 0; i < ha->msix_count; i++) { + qentry = &ha->msix_entries[i]; if (qentry->have_irq) - free_irq(qentry->msix_vector, ha); + free_irq(qentry->vector, qentry->rsp); } pci_disable_msix(ha->pdev); + kfree(ha->msix_entries); + ha->msix_entries = NULL; + ha->flags.msix_enabled = 0; } static int -qla24xx_enable_msix(scsi_qla_host_t *ha) +qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) { int i, ret; - struct msix_entry entries[QLA_MSIX_ENTRIES]; + struct msix_entry *entries; struct qla_msix_entry *qentry; + struct qla_init_msix_entry *msix_queue; - for (i = 0; i < QLA_MSIX_ENTRIES; i++) - entries[i].entry = imsix_entries[i].entry; + entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count, + GFP_KERNEL); + if (!entries) + return -ENOMEM; - ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries)); + for (i = 0; i < ha->msix_count; i++) + entries[i].entry = i; + + ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); if (ret) { qla_printk(KERN_WARNING, ha, - "MSI-X: Failed to enable support -- %d/%d\n", - QLA_MSIX_ENTRIES, ret); + "MSI-X: Failed to enable support -- %d/%d\n" + " Retry with %d vectors\n", ha->msix_count, ret, ret); + ha->msix_count = ret; + ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); + if (ret) { + qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable" + " support, giving up -- %d/%d\n", + ha->msix_count, ret); + goto msix_out; + } + ha->max_queues = ha->msix_count - 1; + } + ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) * + ha->msix_count, GFP_KERNEL); + if (!ha->msix_entries) { + ret = -ENOMEM; goto msix_out; } ha->flags.msix_enabled = 1; - for (i = 0; i < QLA_MSIX_ENTRIES; i++) { - qentry = &ha->msix_entries[imsix_entries[i].index]; - qentry->msix_vector = entries[i].vector; - qentry->msix_entry = entries[i].entry; + for (i = 0; i < ha->msix_count; i++) { + qentry = &ha->msix_entries[i]; + qentry->vector = entries[i].vector; + qentry->entry = entries[i].entry; qentry->have_irq = 0; - ret = request_irq(qentry->msix_vector, - imsix_entries[i].handler, 0, imsix_entries[i].name, ha); - if (ret) { - qla_printk(KERN_WARNING, ha, - "MSI-X: Unable to register handler -- %x/%d.\n", - imsix_entries[i].index, ret); - qla24xx_disable_msix(ha); - goto msix_out; - } - qentry->have_irq = 1; + qentry->rsp = NULL; + } + + /* Enable MSI-X for AENs for queue 0 */ + qentry = &ha->msix_entries[0]; + ret = request_irq(qentry->vector, base_queue.handler, 0, + base_queue.name, rsp); + if (ret) { + qla_printk(KERN_WARNING, ha, + "MSI-X: Unable to register handler -- %x/%d.\n", + qentry->vector, ret); + qla24xx_disable_msix(ha); + goto msix_out; } + qentry->have_irq = 1; + qentry->rsp = rsp; + + /* Enable MSI-X vector for response queue update for queue 0 */ + if (ha->max_queues > 1 && ha->mqiobase) { + ha->mqenable = 1; + msix_queue = &multi_rsp_queue; + qla_printk(KERN_INFO, ha, + "MQ enabled, Number of Queue Resources: %d \n", + ha->max_queues); + } else { + ha->mqenable = 0; + msix_queue = &base_rsp_queue; + } + + qentry = &ha->msix_entries[1]; + ret = request_irq(qentry->vector, msix_queue->handler, 0, + msix_queue->name, rsp); + if (ret) { + qla_printk(KERN_WARNING, ha, + "MSI-X: Unable to register handler -- %x/%d.\n", + qentry->vector, ret); + qla24xx_disable_msix(ha); + ha->mqenable = 0; + goto msix_out; + } + qentry->have_irq = 1; + qentry->rsp = rsp; msix_out: + kfree(entries); return ret; } int -qla2x00_request_irqs(scsi_qla_host_t *ha) +qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) { int ret; device_reg_t __iomem *reg = ha->iobase; @@ -1782,11 +1947,11 @@ qla2x00_request_irqs(scsi_qla_host_t *ha) if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha)) goto skip_msix; - if (IS_QLA2432(ha) && (ha->chip_revision < QLA_MSIX_CHIP_REV_24XX || - !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) { + if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX || + !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) { DEBUG2(qla_printk(KERN_WARNING, ha, - "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n", - ha->chip_revision, ha->fw_attributes)); + "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n", + ha->pdev->revision, ha->fw_attributes)); goto skip_msix; } @@ -1803,7 +1968,7 @@ qla2x00_request_irqs(scsi_qla_host_t *ha) goto skip_msi; } - ret = qla24xx_enable_msix(ha); + ret = qla24xx_enable_msix(ha, rsp); if (!ret) { DEBUG2(qla_printk(KERN_INFO, ha, "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision, @@ -1825,7 +1990,7 @@ skip_msix: skip_msi: ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, - IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha); + IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, rsp); if (ret) { qla_printk(KERN_WARNING, ha, "Failed to reserve interrupt %d already in use.\n", @@ -1833,10 +1998,8 @@ skip_msi: goto fail; } ha->flags.inta_enabled = 1; - ha->host->irq = ha->pdev->irq; clear_risc_ints: - ha->isp_ops->disable_intrs(ha); spin_lock_irq(&ha->hardware_lock); if (IS_FWI2_CAPABLE(ha)) { WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT); @@ -1853,13 +2016,74 @@ fail: } void -qla2x00_free_irqs(scsi_qla_host_t *ha) +qla2x00_free_irqs(scsi_qla_host_t *vha) { + struct qla_hw_data *ha = vha->hw; + struct rsp_que *rsp = ha->rsp_q_map[0]; if (ha->flags.msix_enabled) qla24xx_disable_msix(ha); else if (ha->flags.inta_enabled) { - free_irq(ha->host->irq, ha); + free_irq(ha->pdev->irq, rsp); pci_disable_msi(ha->pdev); } } + +static struct scsi_qla_host * +qla2x00_get_rsp_host(struct rsp_que *rsp) +{ + srb_t *sp; + struct qla_hw_data *ha = rsp->hw; + struct scsi_qla_host *vha = NULL; + struct sts_entry_24xx *pkt; + struct req_que *req; + + if (rsp->id) { + pkt = (struct sts_entry_24xx *) rsp->ring_ptr; + req = rsp->req; + if (pkt && pkt->handle < MAX_OUTSTANDING_COMMANDS) { + sp = req->outstanding_cmds[pkt->handle]; + if (sp) + vha = sp->vha; + } + } + if (!vha) + /* handle it in base queue */ + vha = pci_get_drvdata(ha->pdev); + + return vha; +} + +int qla25xx_request_irq(struct rsp_que *rsp) +{ + struct qla_hw_data *ha = rsp->hw; + struct qla_init_msix_entry *intr = &multi_rsp_queue; + struct qla_msix_entry *msix = rsp->msix; + int ret; + + ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp); + if (ret) { + qla_printk(KERN_WARNING, ha, + "MSI-X: Unable to register handler -- %x/%d.\n", + msix->vector, ret); + return ret; + } + msix->have_irq = 1; + msix->rsp = rsp; + return ret; +} + +void +qla25xx_wrt_rsp_reg(struct qla_hw_data *ha, uint16_t id, uint16_t index) +{ + device_reg_t __iomem *reg = (void *) ha->mqiobase + QLA_QUE_PAGE * id; + WRT_REG_DWORD(®->isp25mq.rsp_q_out, index); +} + +void +qla24xx_wrt_rsp_reg(struct qla_hw_data *ha, uint16_t id, uint16_t index) +{ + device_reg_t __iomem *reg = (void *) ha->iobase; + WRT_REG_DWORD(®->isp24.rsp_q_out, index); +} + diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 3402746..a99976f 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -29,7 +29,7 @@ * Kernel context. */ static int -qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) +qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp) { int rval; unsigned long flags = 0; @@ -42,15 +42,16 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) uint32_t cnt; uint32_t mboxes; unsigned long wait_time; - scsi_qla_host_t *ha = to_qla_parent(pvha); + struct qla_hw_data *ha = vha->hw; + scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); reg = ha->iobase; - io_lock_on = ha->flags.init_done; + io_lock_on = base_vha->flags.init_done; rval = QLA_SUCCESS; - abort_active = test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); + abort_active = test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags); - DEBUG11(printk("%s(%ld): entered.\n", __func__, pvha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, base_vha->host_no)); /* * Wait for active mailbox commands to finish by waiting at most tov @@ -62,7 +63,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) mcp->tov * HZ)) { /* Timeout occurred. Return error. */ DEBUG2_3_11(printk("%s(%ld): cmd access timeout. " - "Exiting.\n", __func__, ha->host_no)); + "Exiting.\n", __func__, base_vha->host_no)); return QLA_FUNCTION_TIMEOUT; } } @@ -72,7 +73,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) ha->mcp = mcp; DEBUG11(printk("scsi(%ld): prepare to issue mbox cmd=0x%x.\n", - ha->host_no, mcp->mb[0])); + base_vha->host_no, mcp->mb[0])); spin_lock_irqsave(&ha->hardware_lock, flags); @@ -100,15 +101,16 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) #if defined(QL_DEBUG_LEVEL_1) printk("%s(%ld): Loaded MBX registers (displayed in bytes) = \n", - __func__, ha->host_no); + __func__, base_vha->host_no); qla2x00_dump_buffer((uint8_t *)mcp->mb, 16); printk("\n"); qla2x00_dump_buffer(((uint8_t *)mcp->mb + 0x10), 16); printk("\n"); qla2x00_dump_buffer(((uint8_t *)mcp->mb + 0x20), 8); printk("\n"); - printk("%s(%ld): I/O address = %p.\n", __func__, ha->host_no, optr); - qla2x00_dump_regs(ha); + printk("%s(%ld): I/O address = %p.\n", __func__, base_vha->host_no, + optr); + qla2x00_dump_regs(base_vha); #endif /* Issue set host interrupt command to send cmd out. */ @@ -117,7 +119,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) /* Unlock mbx registers and wait for interrupt */ DEBUG11(printk("%s(%ld): going to unlock irq & waiting for interrupt. " - "jiffies=%lx.\n", __func__, ha->host_no, jiffies)); + "jiffies=%lx.\n", __func__, base_vha->host_no, jiffies)); /* Wait for mbx cmd completion until timeout */ @@ -137,7 +139,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) } else { DEBUG3_11(printk("%s(%ld): cmd=%x POLLING MODE.\n", __func__, - ha->host_no, command)); + base_vha->host_no, command)); if (IS_FWI2_CAPABLE(ha)) WRT_REG_DWORD(®->isp24.hccr, HCCRX_SET_HOST_INT); @@ -151,7 +153,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) break; /* Check for pending interrupts. */ - qla2x00_poll(ha); + qla2x00_poll(ha->rsp_q_map[0]); if (command != MBC_LOAD_RISC_RAM_EXTENDED && !ha->flags.mbox_int) @@ -164,7 +166,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) uint16_t *iptr2; DEBUG3_11(printk("%s(%ld): cmd %x completed.\n", __func__, - ha->host_no, command)); + base_vha->host_no, command)); /* Got interrupt. Clear the flag. */ ha->flags.mbox_int = 0; @@ -200,12 +202,12 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) ictrl = RD_REG_WORD(®->isp.ictrl); } printk("%s(%ld): **** MB Command Timeout for cmd %x ****\n", - __func__, ha->host_no, command); + __func__, base_vha->host_no, command); printk("%s(%ld): icontrol=%x jiffies=%lx\n", __func__, - ha->host_no, ictrl, jiffies); + base_vha->host_no, ictrl, jiffies); printk("%s(%ld): *** mailbox[0] = 0x%x ***\n", __func__, - ha->host_no, mb0); - qla2x00_dump_regs(ha); + base_vha->host_no, mb0); + qla2x00_dump_regs(base_vha); #endif rval = QLA_FUNCTION_TIMEOUT; @@ -218,10 +220,10 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) if (abort_active || !io_lock_on) { DEBUG11(printk("%s(%ld): checking for additional resp " - "interrupt.\n", __func__, ha->host_no)); + "interrupt.\n", __func__, base_vha->host_no)); /* polling mode for non isp_abort commands. */ - qla2x00_poll(ha); + qla2x00_poll(ha->rsp_q_map[0]); } if (rval == QLA_FUNCTION_TIMEOUT && @@ -229,35 +231,37 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) if (!io_lock_on || (mcp->flags & IOCTL_CMD)) { /* not in dpc. schedule it for dpc to take over. */ DEBUG(printk("%s(%ld): timeout schedule " - "isp_abort_needed.\n", __func__, ha->host_no)); + "isp_abort_needed.\n", __func__, + base_vha->host_no)); DEBUG2_3_11(printk("%s(%ld): timeout schedule " - "isp_abort_needed.\n", __func__, ha->host_no)); + "isp_abort_needed.\n", __func__, + base_vha->host_no)); qla_printk(KERN_WARNING, ha, "Mailbox command timeout occurred. Scheduling ISP " "abort.\n"); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); - qla2xxx_wake_dpc(ha); + set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); + qla2xxx_wake_dpc(vha); } else if (!abort_active) { /* call abort directly since we are in the DPC thread */ DEBUG(printk("%s(%ld): timeout calling abort_isp\n", - __func__, ha->host_no)); + __func__, base_vha->host_no)); DEBUG2_3_11(printk("%s(%ld): timeout calling " - "abort_isp\n", __func__, ha->host_no)); + "abort_isp\n", __func__, base_vha->host_no)); qla_printk(KERN_WARNING, ha, "Mailbox command timeout occurred. Issuing ISP " "abort.\n"); - set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); - clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); - if (qla2x00_abort_isp(ha)) { + set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags); + clear_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); + if (qla2x00_abort_isp(base_vha)) { /* Failed. retry later. */ - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); } - clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); + clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags); DEBUG(printk("%s(%ld): finished abort_isp\n", __func__, - ha->host_no)); + base_vha->host_no)); DEBUG2_3_11(printk("%s(%ld): finished abort_isp\n", - __func__, ha->host_no)); + __func__, base_vha->host_no)); } } @@ -267,24 +271,26 @@ qla2x00_mailbox_command(scsi_qla_host_t *pvha, mbx_cmd_t *mcp) if (rval) { DEBUG2_3_11(printk("%s(%ld): **** FAILED. mbx0=%x, mbx1=%x, " - "mbx2=%x, cmd=%x ****\n", __func__, ha->host_no, + "mbx2=%x, cmd=%x ****\n", __func__, base_vha->host_no, mcp->mb[0], mcp->mb[1], mcp->mb[2], command)); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, + base_vha->host_no)); } return rval; } int -qla2x00_load_ram(scsi_qla_host_t *ha, dma_addr_t req_dma, uint32_t risc_addr, +qla2x00_load_ram(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t risc_addr, uint32_t risc_code_size) { int rval; + struct qla_hw_data *ha = vha->hw; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); if (MSW(risc_addr) || IS_FWI2_CAPABLE(ha)) { mcp->mb[0] = MBC_LOAD_RISC_RAM_EXTENDED; @@ -312,13 +318,13 @@ qla2x00_load_ram(scsi_qla_host_t *ha, dma_addr_t req_dma, uint32_t risc_addr, mcp->in_mb = MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x.\n", __func__, - ha->host_no, rval, mcp->mb[0])); + vha->host_no, rval, mcp->mb[0])); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; @@ -340,13 +346,14 @@ qla2x00_load_ram(scsi_qla_host_t *ha, dma_addr_t req_dma, uint32_t risc_addr, * Kernel context. */ int -qla2x00_execute_fw(scsi_qla_host_t *ha, uint32_t risc_addr) +qla2x00_execute_fw(scsi_qla_host_t *vha, uint32_t risc_addr) { int rval; + struct qla_hw_data *ha = vha->hw; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_EXECUTE_FIRMWARE; mcp->out_mb = MBX_0; @@ -369,18 +376,18 @@ qla2x00_execute_fw(scsi_qla_host_t *ha, uint32_t risc_addr) mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x.\n", __func__, - ha->host_no, rval, mcp->mb[0])); + vha->host_no, rval, mcp->mb[0])); } else { if (IS_FWI2_CAPABLE(ha)) { DEBUG11(printk("%s(%ld): done exchanges=%x.\n", - __func__, ha->host_no, mcp->mb[1])); + __func__, vha->host_no, mcp->mb[1])); } else { DEBUG11(printk("%s(%ld): done.\n", __func__, - ha->host_no)); + vha->host_no)); } } @@ -404,28 +411,28 @@ qla2x00_execute_fw(scsi_qla_host_t *ha, uint32_t risc_addr) * Kernel context. */ void -qla2x00_get_fw_version(scsi_qla_host_t *ha, uint16_t *major, uint16_t *minor, +qla2x00_get_fw_version(scsi_qla_host_t *vha, uint16_t *major, uint16_t *minor, uint16_t *subminor, uint16_t *attributes, uint32_t *memory) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_GET_FIRMWARE_VERSION; mcp->out_mb = MBX_0; mcp->in_mb = MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0; mcp->flags = 0; mcp->tov = MBX_TOV_SECONDS; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); /* Return mailbox data. */ *major = mcp->mb[1]; *minor = mcp->mb[2]; *subminor = mcp->mb[3]; *attributes = mcp->mb[6]; - if (IS_QLA2100(ha) || IS_QLA2200(ha)) + if (IS_QLA2100(vha->hw) || IS_QLA2200(vha->hw)) *memory = 0x1FFFF; /* Defaults to 128KB. */ else *memory = (mcp->mb[5] << 16) | mcp->mb[4]; @@ -433,10 +440,10 @@ qla2x00_get_fw_version(scsi_qla_host_t *ha, uint16_t *major, uint16_t *minor, if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__, - ha->host_no, rval)); + vha->host_no, rval)); } else { /*EMPTY*/ - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } } @@ -455,32 +462,32 @@ qla2x00_get_fw_version(scsi_qla_host_t *ha, uint16_t *major, uint16_t *minor, * Kernel context. */ int -qla2x00_get_fw_options(scsi_qla_host_t *ha, uint16_t *fwopts) +qla2x00_get_fw_options(scsi_qla_host_t *vha, uint16_t *fwopts) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_GET_FIRMWARE_OPTION; mcp->out_mb = MBX_0; mcp->in_mb = MBX_3|MBX_2|MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__, - ha->host_no, rval)); + vha->host_no, rval)); } else { fwopts[0] = mcp->mb[0]; fwopts[1] = mcp->mb[1]; fwopts[2] = mcp->mb[2]; fwopts[3] = mcp->mb[3]; - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; @@ -502,13 +509,13 @@ qla2x00_get_fw_options(scsi_qla_host_t *ha, uint16_t *fwopts) * Kernel context. */ int -qla2x00_set_fw_options(scsi_qla_host_t *ha, uint16_t *fwopts) +qla2x00_set_fw_options(scsi_qla_host_t *vha, uint16_t *fwopts) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_SET_FIRMWARE_OPTION; mcp->mb[1] = fwopts[1]; @@ -516,7 +523,7 @@ qla2x00_set_fw_options(scsi_qla_host_t *ha, uint16_t *fwopts) mcp->mb[3] = fwopts[3]; mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0; mcp->in_mb = MBX_0; - if (IS_FWI2_CAPABLE(ha)) { + if (IS_FWI2_CAPABLE(vha->hw)) { mcp->in_mb |= MBX_1; } else { mcp->mb[10] = fwopts[10]; @@ -526,17 +533,17 @@ qla2x00_set_fw_options(scsi_qla_host_t *ha, uint16_t *fwopts) } mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); fwopts[0] = mcp->mb[0]; if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("%s(%ld): failed=%x (%x/%x).\n", __func__, - ha->host_no, rval, mcp->mb[0], mcp->mb[1])); + vha->host_no, rval, mcp->mb[0], mcp->mb[1])); } else { /*EMPTY*/ - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; @@ -558,13 +565,14 @@ qla2x00_set_fw_options(scsi_qla_host_t *ha, uint16_t *fwopts) * Kernel context. */ int -qla2x00_mbx_reg_test(scsi_qla_host_t *ha) +qla2x00_mbx_reg_test(scsi_qla_host_t *vha) { int rval; + struct qla_hw_data *ha = vha->hw; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - DEBUG11(printk("qla2x00_mbx_reg_test(%ld): entered.\n", ha->host_no)); + DEBUG11(printk("qla2x00_mbx_reg_test(%ld): entered.\n", vha->host_no)); mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST; mcp->mb[1] = 0xAAAA; @@ -578,7 +586,7 @@ qla2x00_mbx_reg_test(scsi_qla_host_t *ha) mcp->in_mb = MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval == QLA_SUCCESS) { if (mcp->mb[1] != 0xAAAA || mcp->mb[2] != 0x5555 || @@ -591,7 +599,7 @@ qla2x00_mbx_reg_test(scsi_qla_host_t *ha) struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; - qla2xxx_hw_event_log(ha, HW_EVENT_ISP_ERR, 0, + qla2xxx_hw_event_log(vha, HW_EVENT_ISP_ERR, 0, LSW(RD_REG_DWORD(®->hccr)), LSW(RD_REG_DWORD(®->istatus))); } @@ -600,11 +608,11 @@ qla2x00_mbx_reg_test(scsi_qla_host_t *ha) if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("qla2x00_mbx_reg_test(%ld): failed=%x.\n", - ha->host_no, rval)); + vha->host_no, rval)); } else { /*EMPTY*/ DEBUG11(printk("qla2x00_mbx_reg_test(%ld): done.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -626,18 +634,18 @@ qla2x00_mbx_reg_test(scsi_qla_host_t *ha) * Kernel context. */ int -qla2x00_verify_checksum(scsi_qla_host_t *ha, uint32_t risc_addr) +qla2x00_verify_checksum(scsi_qla_host_t *vha, uint32_t risc_addr) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_VERIFY_CHECKSUM; mcp->out_mb = MBX_0; mcp->in_mb = MBX_0; - if (IS_FWI2_CAPABLE(ha)) { + if (IS_FWI2_CAPABLE(vha->hw)) { mcp->mb[1] = MSW(risc_addr); mcp->mb[2] = LSW(risc_addr); mcp->out_mb |= MBX_2|MBX_1; @@ -650,14 +658,14 @@ qla2x00_verify_checksum(scsi_qla_host_t *ha, uint32_t risc_addr) mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x chk sum=%x.\n", __func__, - ha->host_no, rval, IS_FWI2_CAPABLE(ha) ? + vha->host_no, rval, IS_FWI2_CAPABLE(vha->hw) ? (mcp->mb[2] << 16) | mcp->mb[1]: mcp->mb[1])); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; @@ -682,7 +690,7 @@ qla2x00_verify_checksum(scsi_qla_host_t *ha, uint32_t risc_addr) * Kernel context. */ static int -qla2x00_issue_iocb_timeout(scsi_qla_host_t *ha, void *buffer, +qla2x00_issue_iocb_timeout(scsi_qla_host_t *vha, void *buffer, dma_addr_t phys_addr, size_t size, uint32_t tov) { int rval; @@ -699,30 +707,28 @@ qla2x00_issue_iocb_timeout(scsi_qla_host_t *ha, void *buffer, mcp->in_mb = MBX_2|MBX_0; mcp->tov = tov; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG(printk("qla2x00_issue_iocb(%ld): failed rval 0x%x\n", - ha->host_no, rval)); - DEBUG2(printk("qla2x00_issue_iocb(%ld): failed rval 0x%x\n", - ha->host_no, rval)); + vha->host_no, rval)); } else { sts_entry_t *sts_entry = (sts_entry_t *) buffer; /* Mask reserved bits. */ sts_entry->entry_status &= - IS_FWI2_CAPABLE(ha) ? RF_MASK_24XX :RF_MASK; + IS_FWI2_CAPABLE(vha->hw) ? RF_MASK_24XX : RF_MASK; } return rval; } int -qla2x00_issue_iocb(scsi_qla_host_t *ha, void *buffer, dma_addr_t phys_addr, +qla2x00_issue_iocb(scsi_qla_host_t *vha, void *buffer, dma_addr_t phys_addr, size_t size) { - return qla2x00_issue_iocb_timeout(ha, buffer, phys_addr, size, + return qla2x00_issue_iocb_timeout(vha, buffer, phys_addr, size, MBX_TOV_SECONDS); } @@ -741,22 +747,23 @@ qla2x00_issue_iocb(scsi_qla_host_t *ha, void *buffer, dma_addr_t phys_addr, * Kernel context. */ int -qla2x00_abort_command(scsi_qla_host_t *ha, srb_t *sp) +qla2x00_abort_command(scsi_qla_host_t *vha, srb_t *sp, struct req_que *req) { unsigned long flags = 0; fc_port_t *fcport; int rval; - uint32_t handle; + uint32_t handle = 0; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; + struct qla_hw_data *ha = vha->hw; - DEBUG11(printk("qla2x00_abort_command(%ld): entered.\n", ha->host_no)); + DEBUG11(printk("qla2x00_abort_command(%ld): entered.\n", vha->host_no)); fcport = sp->fcport; spin_lock_irqsave(&ha->hardware_lock, flags); for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) { - if (ha->outstanding_cmds[handle] == sp) + if (req->outstanding_cmds[handle] == sp) break; } spin_unlock_irqrestore(&ha->hardware_lock, flags); @@ -778,14 +785,14 @@ qla2x00_abort_command(scsi_qla_host_t *ha, srb_t *sp) mcp->in_mb = MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("qla2x00_abort_command(%ld): failed=%x.\n", - ha->host_no, rval)); + vha->host_no, rval)); } else { DEBUG11(printk("qla2x00_abort_command(%ld): done.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -797,40 +804,45 @@ qla2x00_abort_target(struct fc_port *fcport, unsigned int l) int rval, rval2; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - scsi_qla_host_t *ha; + scsi_qla_host_t *vha; + struct req_que *req; + struct rsp_que *rsp; - DEBUG11(printk("%s(%ld): entered.\n", __func__, fcport->ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, fcport->vha->host_no)); l = l; - ha = fcport->ha; + vha = fcport->vha; + req = vha->hw->req_q_map[0]; + rsp = vha->hw->rsp_q_map[0]; mcp->mb[0] = MBC_ABORT_TARGET; mcp->out_mb = MBX_9|MBX_2|MBX_1|MBX_0; - if (HAS_EXTENDED_IDS(ha)) { + if (HAS_EXTENDED_IDS(vha->hw)) { mcp->mb[1] = fcport->loop_id; mcp->mb[10] = 0; mcp->out_mb |= MBX_10; } else { mcp->mb[1] = fcport->loop_id << 8; } - mcp->mb[2] = ha->loop_reset_delay; - mcp->mb[9] = ha->vp_idx; + mcp->mb[2] = vha->hw->loop_reset_delay; + mcp->mb[9] = vha->vp_idx; mcp->in_mb = MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__, - ha->host_no, rval)); + vha->host_no, rval)); } /* Issue marker IOCB. */ - rval2 = qla2x00_marker(ha, fcport->loop_id, 0, MK_SYNC_ID); + rval2 = qla2x00_marker(vha, req, rsp, fcport->loop_id, 0, + MK_SYNC_ID); if (rval2 != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed to issue Marker IOCB " - "(%x).\n", __func__, ha->host_no, rval2)); + "(%x).\n", __func__, vha->host_no, rval2)); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; @@ -842,37 +854,42 @@ qla2x00_lun_reset(struct fc_port *fcport, unsigned int l) int rval, rval2; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - scsi_qla_host_t *ha; + scsi_qla_host_t *vha; + struct req_que *req; + struct rsp_que *rsp; - DEBUG11(printk("%s(%ld): entered.\n", __func__, fcport->ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, fcport->vha->host_no)); - ha = fcport->ha; + vha = fcport->vha; + req = vha->hw->req_q_map[0]; + rsp = vha->hw->rsp_q_map[0]; mcp->mb[0] = MBC_LUN_RESET; mcp->out_mb = MBX_9|MBX_3|MBX_2|MBX_1|MBX_0; - if (HAS_EXTENDED_IDS(ha)) + if (HAS_EXTENDED_IDS(vha->hw)) mcp->mb[1] = fcport->loop_id; else mcp->mb[1] = fcport->loop_id << 8; mcp->mb[2] = l; mcp->mb[3] = 0; - mcp->mb[9] = ha->vp_idx; + mcp->mb[9] = vha->vp_idx; mcp->in_mb = MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__, - ha->host_no, rval)); + vha->host_no, rval)); } /* Issue marker IOCB. */ - rval2 = qla2x00_marker(ha, fcport->loop_id, l, MK_SYNC_ID_LUN); + rval2 = qla2x00_marker(vha, req, rsp, fcport->loop_id, l, + MK_SYNC_ID_LUN); if (rval2 != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed to issue Marker IOCB " - "(%x).\n", __func__, ha->host_no, rval2)); + "(%x).\n", __func__, vha->host_no, rval2)); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; @@ -899,7 +916,7 @@ qla2x00_lun_reset(struct fc_port *fcport, unsigned int l) * Kernel context. */ int -qla2x00_get_adapter_id(scsi_qla_host_t *ha, uint16_t *id, uint8_t *al_pa, +qla2x00_get_adapter_id(scsi_qla_host_t *vha, uint16_t *id, uint8_t *al_pa, uint8_t *area, uint8_t *domain, uint16_t *top, uint16_t *sw_cap) { int rval; @@ -907,15 +924,15 @@ qla2x00_get_adapter_id(scsi_qla_host_t *ha, uint16_t *id, uint8_t *al_pa, mbx_cmd_t *mcp = &mc; DEBUG11(printk("qla2x00_get_adapter_id(%ld): entered.\n", - ha->host_no)); + vha->host_no)); mcp->mb[0] = MBC_GET_ADAPTER_LOOP_ID; - mcp->mb[9] = ha->vp_idx; + mcp->mb[9] = vha->vp_idx; mcp->out_mb = MBX_9|MBX_0; mcp->in_mb = MBX_9|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (mcp->mb[0] == MBS_COMMAND_ERROR) rval = QLA_COMMAND_ERROR; else if (mcp->mb[0] == MBS_INVALID_COMMAND) @@ -932,11 +949,11 @@ qla2x00_get_adapter_id(scsi_qla_host_t *ha, uint16_t *id, uint8_t *al_pa, if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("qla2x00_get_adapter_id(%ld): failed=%x.\n", - ha->host_no, rval)); + vha->host_no, rval)); } else { /*EMPTY*/ DEBUG11(printk("qla2x00_get_adapter_id(%ld): done.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -958,7 +975,7 @@ qla2x00_get_adapter_id(scsi_qla_host_t *ha, uint16_t *id, uint8_t *al_pa, * Kernel context. */ int -qla2x00_get_retry_cnt(scsi_qla_host_t *ha, uint8_t *retry_cnt, uint8_t *tov, +qla2x00_get_retry_cnt(scsi_qla_host_t *vha, uint8_t *retry_cnt, uint8_t *tov, uint16_t *r_a_tov) { int rval; @@ -967,19 +984,19 @@ qla2x00_get_retry_cnt(scsi_qla_host_t *ha, uint8_t *retry_cnt, uint8_t *tov, mbx_cmd_t *mcp = &mc; DEBUG11(printk("qla2x00_get_retry_cnt(%ld): entered.\n", - ha->host_no)); + vha->host_no)); mcp->mb[0] = MBC_GET_RETRY_COUNT; mcp->out_mb = MBX_0; mcp->in_mb = MBX_3|MBX_2|MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("qla2x00_get_retry_cnt(%ld): failed = %x.\n", - ha->host_no, mcp->mb[0])); + vha->host_no, mcp->mb[0])); } else { /* Convert returned data and check our values. */ *r_a_tov = mcp->mb[3] / 2; @@ -991,7 +1008,7 @@ qla2x00_get_retry_cnt(scsi_qla_host_t *ha, uint8_t *retry_cnt, uint8_t *tov, } DEBUG11(printk("qla2x00_get_retry_cnt(%ld): done. mb3=%d " - "ratov=%d.\n", ha->host_no, mcp->mb[3], ratov)); + "ratov=%d.\n", vha->host_no, mcp->mb[3], ratov)); } return rval; @@ -1015,14 +1032,15 @@ qla2x00_get_retry_cnt(scsi_qla_host_t *ha, uint8_t *retry_cnt, uint8_t *tov, * Kernel context. */ int -qla2x00_init_firmware(scsi_qla_host_t *ha, uint16_t size) +qla2x00_init_firmware(scsi_qla_host_t *vha, uint16_t size) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; + struct qla_hw_data *ha = vha->hw; DEBUG11(printk("qla2x00_init_firmware(%ld): entered.\n", - ha->host_no)); + vha->host_no)); if (ha->flags.npiv_supported) mcp->mb[0] = MBC_MID_INITIALIZE_FIRMWARE; @@ -1040,17 +1058,17 @@ qla2x00_init_firmware(scsi_qla_host_t *ha, uint16_t size) mcp->buf_size = size; mcp->flags = MBX_DMA_OUT; mcp->tov = MBX_TOV_SECONDS; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("qla2x00_init_firmware(%ld): failed=%x " "mb0=%x.\n", - ha->host_no, rval, mcp->mb[0])); + vha->host_no, rval, mcp->mb[0])); } else { /*EMPTY*/ DEBUG11(printk("qla2x00_init_firmware(%ld): done.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -1073,7 +1091,7 @@ qla2x00_init_firmware(scsi_qla_host_t *ha, uint16_t size) * Kernel context. */ int -qla2x00_get_port_database(scsi_qla_host_t *ha, fc_port_t *fcport, uint8_t opt) +qla2x00_get_port_database(scsi_qla_host_t *vha, fc_port_t *fcport, uint8_t opt) { int rval; mbx_cmd_t mc; @@ -1081,14 +1099,15 @@ qla2x00_get_port_database(scsi_qla_host_t *ha, fc_port_t *fcport, uint8_t opt) port_database_t *pd; struct port_database_24xx *pd24; dma_addr_t pd_dma; + struct qla_hw_data *ha = vha->hw; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); pd24 = NULL; pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma); if (pd == NULL) { DEBUG2_3(printk("%s(%ld): failed to allocate Port Database " - "structure.\n", __func__, ha->host_no)); + "structure.\n", __func__, vha->host_no)); return QLA_MEMORY_ALLOC_FAILED; } memset(pd, 0, max(PORT_DATABASE_SIZE, PORT_DATABASE_24XX_SIZE)); @@ -1100,7 +1119,7 @@ qla2x00_get_port_database(scsi_qla_host_t *ha, fc_port_t *fcport, uint8_t opt) mcp->mb[3] = LSW(pd_dma); mcp->mb[6] = MSW(MSD(pd_dma)); mcp->mb[7] = LSW(MSD(pd_dma)); - mcp->mb[9] = ha->vp_idx; + mcp->mb[9] = vha->vp_idx; mcp->out_mb = MBX_9|MBX_7|MBX_6|MBX_3|MBX_2|MBX_0; mcp->in_mb = MBX_0; if (IS_FWI2_CAPABLE(ha)) { @@ -1120,7 +1139,7 @@ qla2x00_get_port_database(scsi_qla_host_t *ha, fc_port_t *fcport, uint8_t opt) PORT_DATABASE_24XX_SIZE : PORT_DATABASE_SIZE; mcp->flags = MBX_DMA_IN; mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2); - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) goto gpd_error_out; @@ -1132,7 +1151,7 @@ qla2x00_get_port_database(scsi_qla_host_t *ha, fc_port_t *fcport, uint8_t opt) pd24->last_login_state != PDS_PRLI_COMPLETE) { DEBUG2(printk("%s(%ld): Unable to verify " "login-state (%x/%x) for loop_id %x\n", - __func__, ha->host_no, + __func__, vha->host_no, pd24->current_login_state, pd24->last_login_state, fcport->loop_id)); rval = QLA_FUNCTION_FAILED; @@ -1192,9 +1211,9 @@ gpd_error_out: if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x mb[1]=%x.\n", - __func__, ha->host_no, rval, mcp->mb[0], mcp->mb[1])); + __func__, vha->host_no, rval, mcp->mb[0], mcp->mb[1])); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; @@ -1217,21 +1236,21 @@ gpd_error_out: * Kernel context. */ int -qla2x00_get_firmware_state(scsi_qla_host_t *ha, uint16_t *states) +qla2x00_get_firmware_state(scsi_qla_host_t *vha, uint16_t *states) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; DEBUG11(printk("qla2x00_get_firmware_state(%ld): entered.\n", - ha->host_no)); + vha->host_no)); mcp->mb[0] = MBC_GET_FIRMWARE_STATE; mcp->out_mb = MBX_0; mcp->in_mb = MBX_3|MBX_2|MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); /* Return firmware states. */ states[0] = mcp->mb[1]; @@ -1241,11 +1260,11 @@ qla2x00_get_firmware_state(scsi_qla_host_t *ha, uint16_t *states) if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("qla2x00_get_firmware_state(%ld): " - "failed=%x.\n", ha->host_no, rval)); + "failed=%x.\n", vha->host_no, rval)); } else { /*EMPTY*/ DEBUG11(printk("qla2x00_get_firmware_state(%ld): done.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -1270,7 +1289,7 @@ qla2x00_get_firmware_state(scsi_qla_host_t *ha, uint16_t *states) * Kernel context. */ int -qla2x00_get_port_name(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t *name, +qla2x00_get_port_name(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t *name, uint8_t opt) { int rval; @@ -1278,12 +1297,12 @@ qla2x00_get_port_name(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t *name, mbx_cmd_t *mcp = &mc; DEBUG11(printk("qla2x00_get_port_name(%ld): entered.\n", - ha->host_no)); + vha->host_no)); mcp->mb[0] = MBC_GET_PORT_NAME; - mcp->mb[9] = ha->vp_idx; + mcp->mb[9] = vha->vp_idx; mcp->out_mb = MBX_9|MBX_1|MBX_0; - if (HAS_EXTENDED_IDS(ha)) { + if (HAS_EXTENDED_IDS(vha->hw)) { mcp->mb[1] = loop_id; mcp->mb[10] = opt; mcp->out_mb |= MBX_10; @@ -1294,12 +1313,12 @@ qla2x00_get_port_name(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t *name, mcp->in_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("qla2x00_get_port_name(%ld): failed=%x.\n", - ha->host_no, rval)); + vha->host_no, rval)); } else { if (name != NULL) { /* This function returns name in big endian. */ @@ -1314,7 +1333,7 @@ qla2x00_get_port_name(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t *name, } DEBUG11(printk("qla2x00_get_port_name(%ld): done.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -1336,45 +1355,45 @@ qla2x00_get_port_name(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t *name, * Kernel context. */ int -qla2x00_lip_reset(scsi_qla_host_t *ha) +qla2x00_lip_reset(scsi_qla_host_t *vha) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); - if (IS_FWI2_CAPABLE(ha)) { + if (IS_FWI2_CAPABLE(vha->hw)) { mcp->mb[0] = MBC_LIP_FULL_LOGIN; mcp->mb[1] = BIT_6; mcp->mb[2] = 0; - mcp->mb[3] = ha->loop_reset_delay; + mcp->mb[3] = vha->hw->loop_reset_delay; mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0; } else { mcp->mb[0] = MBC_LIP_RESET; mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0; - if (HAS_EXTENDED_IDS(ha)) { + if (HAS_EXTENDED_IDS(vha->hw)) { mcp->mb[1] = 0x00ff; mcp->mb[10] = 0; mcp->out_mb |= MBX_10; } else { mcp->mb[1] = 0xff00; } - mcp->mb[2] = ha->loop_reset_delay; + mcp->mb[2] = vha->hw->loop_reset_delay; mcp->mb[3] = 0; } mcp->in_mb = MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", - __func__, ha->host_no, rval)); + __func__, vha->host_no, rval)); } else { /*EMPTY*/ - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; @@ -1399,7 +1418,7 @@ qla2x00_lip_reset(scsi_qla_host_t *ha) * Kernel context. */ int -qla2x00_send_sns(scsi_qla_host_t *ha, dma_addr_t sns_phys_address, +qla2x00_send_sns(scsi_qla_host_t *vha, dma_addr_t sns_phys_address, uint16_t cmd_size, size_t buf_size) { int rval; @@ -1407,10 +1426,11 @@ qla2x00_send_sns(scsi_qla_host_t *ha, dma_addr_t sns_phys_address, mbx_cmd_t *mcp = &mc; DEBUG11(printk("qla2x00_send_sns(%ld): entered.\n", - ha->host_no)); + vha->host_no)); DEBUG11(printk("qla2x00_send_sns: retry cnt=%d ratov=%d total " - "tov=%d.\n", ha->retry_count, ha->login_timeout, mcp->tov)); + "tov=%d.\n", vha->hw->retry_count, vha->hw->login_timeout, + mcp->tov)); mcp->mb[0] = MBC_SEND_SNS_COMMAND; mcp->mb[1] = cmd_size; @@ -1422,25 +1442,25 @@ qla2x00_send_sns(scsi_qla_host_t *ha, dma_addr_t sns_phys_address, mcp->in_mb = MBX_0|MBX_1; mcp->buf_size = buf_size; mcp->flags = MBX_DMA_OUT|MBX_DMA_IN; - mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2); - rval = qla2x00_mailbox_command(ha, mcp); + mcp->tov = (vha->hw->login_timeout * 2) + (vha->hw->login_timeout / 2); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG(printk("qla2x00_send_sns(%ld): failed=%x mb[0]=%x " - "mb[1]=%x.\n", ha->host_no, rval, mcp->mb[0], mcp->mb[1])); + "mb[1]=%x.\n", vha->host_no, rval, mcp->mb[0], mcp->mb[1])); DEBUG2_3_11(printk("qla2x00_send_sns(%ld): failed=%x mb[0]=%x " - "mb[1]=%x.\n", ha->host_no, rval, mcp->mb[0], mcp->mb[1])); + "mb[1]=%x.\n", vha->host_no, rval, mcp->mb[0], mcp->mb[1])); } else { /*EMPTY*/ - DEBUG11(printk("qla2x00_send_sns(%ld): done.\n", ha->host_no)); + DEBUG11(printk("qla2x00_send_sns(%ld): done.\n", vha->host_no)); } return rval; } int -qla24xx_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, +qla24xx_login_fabric(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, uint8_t area, uint8_t al_pa, uint16_t *mb, uint8_t opt) { int rval; @@ -1448,13 +1468,14 @@ qla24xx_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, struct logio_entry_24xx *lg; dma_addr_t lg_dma; uint32_t iop[2]; + struct qla_hw_data *ha = vha->hw; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &lg_dma); if (lg == NULL) { DEBUG2_3(printk("%s(%ld): failed to allocate Login IOCB.\n", - __func__, ha->host_no)); + __func__, vha->host_no)); return QLA_MEMORY_ALLOC_FAILED; } memset(lg, 0, sizeof(struct logio_entry_24xx)); @@ -1470,14 +1491,14 @@ qla24xx_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, lg->port_id[0] = al_pa; lg->port_id[1] = area; lg->port_id[2] = domain; - lg->vp_index = ha->vp_idx; - rval = qla2x00_issue_iocb(ha, lg, lg_dma, 0); + lg->vp_index = vha->vp_idx; + rval = qla2x00_issue_iocb(vha, lg, lg_dma, 0); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed to issue Login IOCB " - "(%x).\n", __func__, ha->host_no, rval)); + "(%x).\n", __func__, vha->host_no, rval)); } else if (lg->entry_status != 0) { DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " - "-- error status (%x).\n", __func__, ha->host_no, + "-- error status (%x).\n", __func__, vha->host_no, lg->entry_status)); rval = QLA_FUNCTION_FAILED; } else if (lg->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { @@ -1486,7 +1507,7 @@ qla24xx_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " "-- completion status (%x) ioparam=%x/%x.\n", __func__, - ha->host_no, le16_to_cpu(lg->comp_status), iop[0], + vha->host_no, le16_to_cpu(lg->comp_status), iop[0], iop[1])); switch (iop[0]) { @@ -1515,7 +1536,7 @@ qla24xx_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, break; } } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); iop[0] = le32_to_cpu(lg->io_parameter[0]); @@ -1562,14 +1583,15 @@ qla24xx_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, * Kernel context. */ int -qla2x00_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, +qla2x00_login_fabric(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, uint8_t area, uint8_t al_pa, uint16_t *mb, uint8_t opt) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; + struct qla_hw_data *ha = vha->hw; - DEBUG11(printk("qla2x00_login_fabric(%ld): entered.\n", ha->host_no)); + DEBUG11(printk("qla2x00_login_fabric(%ld): entered.\n", vha->host_no)); mcp->mb[0] = MBC_LOGIN_FABRIC_PORT; mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0; @@ -1586,7 +1608,7 @@ qla2x00_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, mcp->in_mb = MBX_7|MBX_6|MBX_2|MBX_1|MBX_0; mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2); mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); /* Return mailbox statuses. */ if (mb != NULL) { @@ -1613,12 +1635,12 @@ qla2x00_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, /*EMPTY*/ DEBUG2_3_11(printk("qla2x00_login_fabric(%ld): failed=%x " - "mb[0]=%x mb[1]=%x mb[2]=%x.\n", ha->host_no, rval, + "mb[0]=%x mb[1]=%x mb[2]=%x.\n", vha->host_no, rval, mcp->mb[0], mcp->mb[1], mcp->mb[2])); } else { /*EMPTY*/ DEBUG11(printk("qla2x00_login_fabric(%ld): done.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -1641,19 +1663,20 @@ qla2x00_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, * */ int -qla2x00_login_local_device(scsi_qla_host_t *ha, fc_port_t *fcport, +qla2x00_login_local_device(scsi_qla_host_t *vha, fc_port_t *fcport, uint16_t *mb_ret, uint8_t opt) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; + struct qla_hw_data *ha = vha->hw; if (IS_FWI2_CAPABLE(ha)) - return qla24xx_login_fabric(ha, fcport->loop_id, + return qla24xx_login_fabric(vha, fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, mb_ret, opt); - DEBUG3(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG3(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_LOGIN_LOOP_PORT; if (HAS_EXTENDED_IDS(ha)) @@ -1665,7 +1688,7 @@ qla2x00_login_local_device(scsi_qla_host_t *ha, fc_port_t *fcport, mcp->in_mb = MBX_7|MBX_6|MBX_1|MBX_0; mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2); mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); /* Return mailbox statuses. */ if (mb_ret != NULL) { @@ -1686,33 +1709,34 @@ qla2x00_login_local_device(scsi_qla_host_t *ha, fc_port_t *fcport, rval = QLA_SUCCESS; DEBUG(printk("%s(%ld): failed=%x mb[0]=%x mb[1]=%x " - "mb[6]=%x mb[7]=%x.\n", __func__, ha->host_no, rval, + "mb[6]=%x mb[7]=%x.\n", __func__, vha->host_no, rval, mcp->mb[0], mcp->mb[1], mcp->mb[6], mcp->mb[7])); DEBUG2_3(printk("%s(%ld): failed=%x mb[0]=%x mb[1]=%x " - "mb[6]=%x mb[7]=%x.\n", __func__, ha->host_no, rval, + "mb[6]=%x mb[7]=%x.\n", __func__, vha->host_no, rval, mcp->mb[0], mcp->mb[1], mcp->mb[6], mcp->mb[7])); } else { /*EMPTY*/ - DEBUG3(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG3(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return (rval); } int -qla24xx_fabric_logout(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, +qla24xx_fabric_logout(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, uint8_t area, uint8_t al_pa) { int rval; struct logio_entry_24xx *lg; dma_addr_t lg_dma; + struct qla_hw_data *ha = vha->hw; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &lg_dma); if (lg == NULL) { DEBUG2_3(printk("%s(%ld): failed to allocate Logout IOCB.\n", - __func__, ha->host_no)); + __func__, vha->host_no)); return QLA_MEMORY_ALLOC_FAILED; } memset(lg, 0, sizeof(struct logio_entry_24xx)); @@ -1725,25 +1749,26 @@ qla24xx_fabric_logout(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, lg->port_id[0] = al_pa; lg->port_id[1] = area; lg->port_id[2] = domain; - lg->vp_index = ha->vp_idx; - rval = qla2x00_issue_iocb(ha, lg, lg_dma, 0); + lg->vp_index = vha->vp_idx; + + rval = qla2x00_issue_iocb(vha, lg, lg_dma, 0); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed to issue Logout IOCB " - "(%x).\n", __func__, ha->host_no, rval)); + "(%x).\n", __func__, vha->host_no, rval)); } else if (lg->entry_status != 0) { DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " - "-- error status (%x).\n", __func__, ha->host_no, + "-- error status (%x).\n", __func__, vha->host_no, lg->entry_status)); rval = QLA_FUNCTION_FAILED; } else if (lg->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { - DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " + DEBUG2_3_11(printk("%s(%ld %d): failed to complete IOCB " "-- completion status (%x) ioparam=%x/%x.\n", __func__, - ha->host_no, le16_to_cpu(lg->comp_status), + vha->host_no, vha->vp_idx, le16_to_cpu(lg->comp_status), le32_to_cpu(lg->io_parameter[0]), le32_to_cpu(lg->io_parameter[1]))); } else { /*EMPTY*/ - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } dma_pool_free(ha->s_dma_pool, lg, lg_dma); @@ -1768,7 +1793,7 @@ qla24xx_fabric_logout(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, * Kernel context. */ int -qla2x00_fabric_logout(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, +qla2x00_fabric_logout(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain, uint8_t area, uint8_t al_pa) { int rval; @@ -1776,11 +1801,11 @@ qla2x00_fabric_logout(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, mbx_cmd_t *mcp = &mc; DEBUG11(printk("qla2x00_fabric_logout(%ld): entered.\n", - ha->host_no)); + vha->host_no)); mcp->mb[0] = MBC_LOGOUT_FABRIC_PORT; mcp->out_mb = MBX_1|MBX_0; - if (HAS_EXTENDED_IDS(ha)) { + if (HAS_EXTENDED_IDS(vha->hw)) { mcp->mb[1] = loop_id; mcp->mb[10] = 0; mcp->out_mb |= MBX_10; @@ -1791,16 +1816,16 @@ qla2x00_fabric_logout(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, mcp->in_mb = MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("qla2x00_fabric_logout(%ld): failed=%x " - "mbx1=%x.\n", ha->host_no, rval, mcp->mb[1])); + "mbx1=%x.\n", vha->host_no, rval, mcp->mb[1])); } else { /*EMPTY*/ DEBUG11(printk("qla2x00_fabric_logout(%ld): done.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -1822,33 +1847,33 @@ qla2x00_fabric_logout(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain, * Kernel context. */ int -qla2x00_full_login_lip(scsi_qla_host_t *ha) +qla2x00_full_login_lip(scsi_qla_host_t *vha) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; DEBUG11(printk("qla2x00_full_login_lip(%ld): entered.\n", - ha->host_no)); + vha->host_no)); mcp->mb[0] = MBC_LIP_FULL_LOGIN; - mcp->mb[1] = IS_FWI2_CAPABLE(ha) ? BIT_3: 0; + mcp->mb[1] = IS_FWI2_CAPABLE(vha->hw) ? BIT_3 : 0; mcp->mb[2] = 0; mcp->mb[3] = 0; mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0; mcp->in_mb = MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("qla2x00_full_login_lip(%ld): failed=%x.\n", - ha->host_no, rval)); + vha->host_no, rval)); } else { /*EMPTY*/ DEBUG11(printk("qla2x00_full_login_lip(%ld): done.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -1867,7 +1892,7 @@ qla2x00_full_login_lip(scsi_qla_host_t *ha) * Kernel context. */ int -qla2x00_get_id_list(scsi_qla_host_t *ha, void *id_list, dma_addr_t id_list_dma, +qla2x00_get_id_list(scsi_qla_host_t *vha, void *id_list, dma_addr_t id_list_dma, uint16_t *entries) { int rval; @@ -1875,20 +1900,20 @@ qla2x00_get_id_list(scsi_qla_host_t *ha, void *id_list, dma_addr_t id_list_dma, mbx_cmd_t *mcp = &mc; DEBUG11(printk("qla2x00_get_id_list(%ld): entered.\n", - ha->host_no)); + vha->host_no)); if (id_list == NULL) return QLA_FUNCTION_FAILED; mcp->mb[0] = MBC_GET_ID_LIST; mcp->out_mb = MBX_0; - if (IS_FWI2_CAPABLE(ha)) { + if (IS_FWI2_CAPABLE(vha->hw)) { mcp->mb[2] = MSW(id_list_dma); mcp->mb[3] = LSW(id_list_dma); mcp->mb[6] = MSW(MSD(id_list_dma)); mcp->mb[7] = LSW(MSD(id_list_dma)); mcp->mb[8] = 0; - mcp->mb[9] = ha->vp_idx; + mcp->mb[9] = vha->vp_idx; mcp->out_mb |= MBX_9|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2; } else { mcp->mb[1] = MSW(id_list_dma); @@ -1900,16 +1925,16 @@ qla2x00_get_id_list(scsi_qla_host_t *ha, void *id_list, dma_addr_t id_list_dma, mcp->in_mb = MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("qla2x00_get_id_list(%ld): failed=%x.\n", - ha->host_no, rval)); + vha->host_no, rval)); } else { *entries = mcp->mb[1]; DEBUG11(printk("qla2x00_get_id_list(%ld): done.\n", - ha->host_no)); + vha->host_no)); } return rval; @@ -1929,7 +1954,7 @@ qla2x00_get_id_list(scsi_qla_host_t *ha, void *id_list, dma_addr_t id_list_dma, * Kernel context. */ int -qla2x00_get_resource_cnts(scsi_qla_host_t *ha, uint16_t *cur_xchg_cnt, +qla2x00_get_resource_cnts(scsi_qla_host_t *vha, uint16_t *cur_xchg_cnt, uint16_t *orig_xchg_cnt, uint16_t *cur_iocb_cnt, uint16_t *orig_iocb_cnt, uint16_t *max_npiv_vports) { @@ -1937,22 +1962,22 @@ qla2x00_get_resource_cnts(scsi_qla_host_t *ha, uint16_t *cur_xchg_cnt, mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_GET_RESOURCE_COUNTS; mcp->out_mb = MBX_0; mcp->in_mb = MBX_11|MBX_10|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("%s(%ld): failed = %x.\n", __func__, - ha->host_no, mcp->mb[0])); + vha->host_no, mcp->mb[0])); } else { DEBUG11(printk("%s(%ld): done. mb1=%x mb2=%x mb3=%x mb6=%x " - "mb7=%x mb10=%x mb11=%x.\n", __func__, ha->host_no, + "mb7=%x mb10=%x mb11=%x.\n", __func__, vha->host_no, mcp->mb[1], mcp->mb[2], mcp->mb[3], mcp->mb[6], mcp->mb[7], mcp->mb[10], mcp->mb[11])); @@ -1964,7 +1989,7 @@ qla2x00_get_resource_cnts(scsi_qla_host_t *ha, uint16_t *cur_xchg_cnt, *cur_iocb_cnt = mcp->mb[7]; if (orig_iocb_cnt) *orig_iocb_cnt = mcp->mb[10]; - if (ha->flags.npiv_supported && max_npiv_vports) + if (vha->hw->flags.npiv_supported && max_npiv_vports) *max_npiv_vports = mcp->mb[11]; } @@ -1987,18 +2012,19 @@ qla2x00_get_resource_cnts(scsi_qla_host_t *ha, uint16_t *cur_xchg_cnt, * Kernel context. */ int -qla2x00_get_fcal_position_map(scsi_qla_host_t *ha, char *pos_map) +qla2x00_get_fcal_position_map(scsi_qla_host_t *vha, char *pos_map) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; char *pmap; dma_addr_t pmap_dma; + struct qla_hw_data *ha = vha->hw; pmap = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &pmap_dma); if (pmap == NULL) { DEBUG2_3_11(printk("%s(%ld): **** Mem Alloc Failed ****", - __func__, ha->host_no)); + __func__, vha->host_no)); return QLA_MEMORY_ALLOC_FAILED; } memset(pmap, 0, FCAL_MAP_SIZE); @@ -2013,11 +2039,11 @@ qla2x00_get_fcal_position_map(scsi_qla_host_t *ha, char *pos_map) mcp->buf_size = FCAL_MAP_SIZE; mcp->flags = MBX_DMA_IN; mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2); - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval == QLA_SUCCESS) { DEBUG11(printk("%s(%ld): (mb0=%x/mb1=%x) FC/AL Position Map " - "size (%x)\n", __func__, ha->host_no, mcp->mb[0], + "size (%x)\n", __func__, vha->host_no, mcp->mb[0], mcp->mb[1], (unsigned)pmap[0])); DEBUG11(qla2x00_dump_buffer(pmap, pmap[0] + 1)); @@ -2028,9 +2054,9 @@ qla2x00_get_fcal_position_map(scsi_qla_host_t *ha, char *pos_map) if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__, - ha->host_no, rval)); + vha->host_no, rval)); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; @@ -2051,15 +2077,16 @@ qla2x00_get_fcal_position_map(scsi_qla_host_t *ha, char *pos_map) * BIT_1 = mailbox error. */ int -qla2x00_get_link_status(scsi_qla_host_t *ha, uint16_t loop_id, +qla2x00_get_link_status(scsi_qla_host_t *vha, uint16_t loop_id, struct link_statistics *stats, dma_addr_t stats_dma) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; uint32_t *siter, *diter, dwords; + struct qla_hw_data *ha = vha->hw; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_GET_LINK_STATUS; mcp->mb[2] = MSW(stats_dma); @@ -2084,12 +2111,12 @@ qla2x00_get_link_status(scsi_qla_host_t *ha, uint16_t loop_id, } mcp->tov = MBX_TOV_SECONDS; mcp->flags = IOCTL_CMD; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval == QLA_SUCCESS) { if (mcp->mb[0] != MBS_COMMAND_COMPLETE) { DEBUG2_3_11(printk("%s(%ld): cmd failed. mbx0=%x.\n", - __func__, ha->host_no, mcp->mb[0])); + __func__, vha->host_no, mcp->mb[0])); rval = QLA_FUNCTION_FAILED; } else { /* Copy over data -- firmware data is LE. */ @@ -2101,14 +2128,14 @@ qla2x00_get_link_status(scsi_qla_host_t *ha, uint16_t loop_id, } else { /* Failed. */ DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__, - ha->host_no, rval)); + vha->host_no, rval)); } return rval; } int -qla24xx_get_isp_stats(scsi_qla_host_t *ha, struct link_statistics *stats, +qla24xx_get_isp_stats(scsi_qla_host_t *vha, struct link_statistics *stats, dma_addr_t stats_dma) { int rval; @@ -2116,7 +2143,7 @@ qla24xx_get_isp_stats(scsi_qla_host_t *ha, struct link_statistics *stats, mbx_cmd_t *mcp = &mc; uint32_t *siter, *diter, dwords; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_GET_LINK_PRIV_STATS; mcp->mb[2] = MSW(stats_dma); @@ -2124,18 +2151,18 @@ qla24xx_get_isp_stats(scsi_qla_host_t *ha, struct link_statistics *stats, mcp->mb[6] = MSW(MSD(stats_dma)); mcp->mb[7] = LSW(MSD(stats_dma)); mcp->mb[8] = sizeof(struct link_statistics) / 4; - mcp->mb[9] = ha->vp_idx; + mcp->mb[9] = vha->vp_idx; mcp->mb[10] = 0; mcp->out_mb = MBX_10|MBX_9|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_0; mcp->in_mb = MBX_2|MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = IOCTL_CMD; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval == QLA_SUCCESS) { if (mcp->mb[0] != MBS_COMMAND_COMPLETE) { DEBUG2_3_11(printk("%s(%ld): cmd failed. mbx0=%x.\n", - __func__, ha->host_no, mcp->mb[0])); + __func__, vha->host_no, mcp->mb[0])); rval = QLA_FUNCTION_FAILED; } else { /* Copy over data -- firmware data is LE. */ @@ -2147,14 +2174,14 @@ qla24xx_get_isp_stats(scsi_qla_host_t *ha, struct link_statistics *stats, } else { /* Failed. */ DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__, - ha->host_no, rval)); + vha->host_no, rval)); } return rval; } int -qla24xx_abort_command(scsi_qla_host_t *ha, srb_t *sp) +qla24xx_abort_command(scsi_qla_host_t *vha, srb_t *sp, struct req_que *req) { int rval; fc_port_t *fcport; @@ -2163,18 +2190,18 @@ qla24xx_abort_command(scsi_qla_host_t *ha, srb_t *sp) struct abort_entry_24xx *abt; dma_addr_t abt_dma; uint32_t handle; - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); fcport = sp->fcport; - spin_lock_irqsave(&pha->hardware_lock, flags); + spin_lock_irqsave(&ha->hardware_lock, flags); for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) { - if (pha->outstanding_cmds[handle] == sp) + if (req->outstanding_cmds[handle] == sp) break; } - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); if (handle == MAX_OUTSTANDING_COMMANDS) { /* Command not found. */ return QLA_FUNCTION_FAILED; @@ -2183,7 +2210,7 @@ qla24xx_abort_command(scsi_qla_host_t *ha, srb_t *sp) abt = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &abt_dma); if (abt == NULL) { DEBUG2_3(printk("%s(%ld): failed to allocate Abort IOCB.\n", - __func__, ha->host_no)); + __func__, vha->host_no)); return QLA_MEMORY_ALLOC_FAILED; } memset(abt, 0, sizeof(struct abort_entry_24xx)); @@ -2196,22 +2223,25 @@ qla24xx_abort_command(scsi_qla_host_t *ha, srb_t *sp) abt->port_id[1] = fcport->d_id.b.area; abt->port_id[2] = fcport->d_id.b.domain; abt->vp_index = fcport->vp_idx; - rval = qla2x00_issue_iocb(ha, abt, abt_dma, 0); + + abt->req_que_no = cpu_to_le16(req->id); + + rval = qla2x00_issue_iocb(vha, abt, abt_dma, 0); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed to issue IOCB (%x).\n", - __func__, ha->host_no, rval)); + __func__, vha->host_no, rval)); } else if (abt->entry_status != 0) { DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " - "-- error status (%x).\n", __func__, ha->host_no, + "-- error status (%x).\n", __func__, vha->host_no, abt->entry_status)); rval = QLA_FUNCTION_FAILED; } else if (abt->nport_handle != __constant_cpu_to_le16(0)) { DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " - "-- completion status (%x).\n", __func__, ha->host_no, + "-- completion status (%x).\n", __func__, vha->host_no, le16_to_cpu(abt->nport_handle))); rval = QLA_FUNCTION_FAILED; } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } dma_pool_free(ha->s_dma_pool, abt, abt_dma); @@ -2233,16 +2263,21 @@ __qla24xx_issue_tmf(char *name, uint32_t type, struct fc_port *fcport, int rval, rval2; struct tsk_mgmt_cmd *tsk; dma_addr_t tsk_dma; - scsi_qla_host_t *ha, *pha; + scsi_qla_host_t *vha; + struct qla_hw_data *ha; + struct req_que *req; + struct rsp_que *rsp; - DEBUG11(printk("%s(%ld): entered.\n", __func__, fcport->ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, fcport->vha->host_no)); - ha = fcport->ha; - pha = to_qla_parent(ha); - tsk = dma_pool_alloc(pha->s_dma_pool, GFP_KERNEL, &tsk_dma); + vha = fcport->vha; + ha = vha->hw; + req = ha->req_q_map[0]; + rsp = ha->rsp_q_map[0]; + tsk = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &tsk_dma); if (tsk == NULL) { DEBUG2_3(printk("%s(%ld): failed to allocate Task Management " - "IOCB.\n", __func__, ha->host_no)); + "IOCB.\n", __func__, vha->host_no)); return QLA_MEMORY_ALLOC_FAILED; } memset(tsk, 0, sizeof(struct tsk_mgmt_cmd)); @@ -2262,34 +2297,34 @@ __qla24xx_issue_tmf(char *name, uint32_t type, struct fc_port *fcport, sizeof(tsk->p.tsk.lun)); } - rval = qla2x00_issue_iocb(ha, tsk, tsk_dma, 0); + rval = qla2x00_issue_iocb(vha, tsk, tsk_dma, 0); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed to issue %s Reset IOCB " - "(%x).\n", __func__, ha->host_no, name, rval)); + "(%x).\n", __func__, vha->host_no, name, rval)); } else if (tsk->p.sts.entry_status != 0) { DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " - "-- error status (%x).\n", __func__, ha->host_no, + "-- error status (%x).\n", __func__, vha->host_no, tsk->p.sts.entry_status)); rval = QLA_FUNCTION_FAILED; } else if (tsk->p.sts.comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " "-- completion status (%x).\n", __func__, - ha->host_no, le16_to_cpu(tsk->p.sts.comp_status))); + vha->host_no, le16_to_cpu(tsk->p.sts.comp_status))); rval = QLA_FUNCTION_FAILED; } /* Issue marker IOCB. */ - rval2 = qla2x00_marker(ha, fcport->loop_id, l, + rval2 = qla2x00_marker(vha, req, rsp, fcport->loop_id, l, type == TCF_LUN_RESET ? MK_SYNC_ID_LUN: MK_SYNC_ID); if (rval2 != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed to issue Marker IOCB " - "(%x).\n", __func__, ha->host_no, rval2)); + "(%x).\n", __func__, vha->host_no, rval2)); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } - dma_pool_free(pha->s_dma_pool, tsk, tsk_dma); + dma_pool_free(ha->s_dma_pool, tsk, tsk_dma); return rval; } @@ -2307,29 +2342,30 @@ qla24xx_lun_reset(struct fc_port *fcport, unsigned int l) } int -qla2x00_system_error(scsi_qla_host_t *ha) +qla2x00_system_error(scsi_qla_host_t *vha) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; + struct qla_hw_data *ha = vha->hw; if (!IS_QLA23XX(ha) && !IS_FWI2_CAPABLE(ha)) return QLA_FUNCTION_FAILED; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_GEN_SYSTEM_ERROR; mcp->out_mb = MBX_0; mcp->in_mb = MBX_0; mcp->tov = 5; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__, - ha->host_no, rval)); + vha->host_no, rval)); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; @@ -2342,14 +2378,14 @@ qla2x00_system_error(scsi_qla_host_t *ha) * Returns */ int -qla2x00_set_serdes_params(scsi_qla_host_t *ha, uint16_t sw_em_1g, +qla2x00_set_serdes_params(scsi_qla_host_t *vha, uint16_t sw_em_1g, uint16_t sw_em_2g, uint16_t sw_em_4g) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_SERDES_PARAMS; mcp->mb[1] = BIT_0; @@ -2360,61 +2396,61 @@ qla2x00_set_serdes_params(scsi_qla_host_t *ha, uint16_t sw_em_1g, mcp->in_mb = MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { /*EMPTY*/ DEBUG2_3_11(printk("%s(%ld): failed=%x (%x).\n", __func__, - ha->host_no, rval, mcp->mb[0])); + vha->host_no, rval, mcp->mb[0])); } else { /*EMPTY*/ - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; } int -qla2x00_stop_firmware(scsi_qla_host_t *ha) +qla2x00_stop_firmware(scsi_qla_host_t *vha) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - if (!IS_FWI2_CAPABLE(ha)) + if (!IS_FWI2_CAPABLE(vha->hw)) return QLA_FUNCTION_FAILED; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_STOP_FIRMWARE; mcp->out_mb = MBX_0; mcp->in_mb = MBX_0; mcp->tov = 5; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__, - ha->host_no, rval)); + vha->host_no, rval)); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; } int -qla2x00_enable_eft_trace(scsi_qla_host_t *ha, dma_addr_t eft_dma, +qla2x00_enable_eft_trace(scsi_qla_host_t *vha, dma_addr_t eft_dma, uint16_t buffers) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - if (!IS_FWI2_CAPABLE(ha)) + if (!IS_FWI2_CAPABLE(vha->hw)) return QLA_FUNCTION_FAILED; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_TRACE_CONTROL; mcp->mb[1] = TC_EFT_ENABLE; @@ -2428,28 +2464,28 @@ qla2x00_enable_eft_trace(scsi_qla_host_t *ha, dma_addr_t eft_dma, mcp->in_mb = MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x mb[1]=%x.\n", - __func__, ha->host_no, rval, mcp->mb[0], mcp->mb[1])); + __func__, vha->host_no, rval, mcp->mb[0], mcp->mb[1])); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; } int -qla2x00_disable_eft_trace(scsi_qla_host_t *ha) +qla2x00_disable_eft_trace(scsi_qla_host_t *vha) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - if (!IS_FWI2_CAPABLE(ha)) + if (!IS_FWI2_CAPABLE(vha->hw)) return QLA_FUNCTION_FAILED; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_TRACE_CONTROL; mcp->mb[1] = TC_EFT_DISABLE; @@ -2457,29 +2493,29 @@ qla2x00_disable_eft_trace(scsi_qla_host_t *ha) mcp->in_mb = MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x mb[1]=%x.\n", - __func__, ha->host_no, rval, mcp->mb[0], mcp->mb[1])); + __func__, vha->host_no, rval, mcp->mb[0], mcp->mb[1])); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; } int -qla2x00_enable_fce_trace(scsi_qla_host_t *ha, dma_addr_t fce_dma, +qla2x00_enable_fce_trace(scsi_qla_host_t *vha, dma_addr_t fce_dma, uint16_t buffers, uint16_t *mb, uint32_t *dwords) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - if (!IS_QLA25XX(ha)) + if (!IS_QLA25XX(vha->hw)) return QLA_FUNCTION_FAILED; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_TRACE_CONTROL; mcp->mb[1] = TC_FCE_ENABLE; @@ -2497,12 +2533,12 @@ qla2x00_enable_fce_trace(scsi_qla_host_t *ha, dma_addr_t fce_dma, mcp->in_mb = MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x mb[1]=%x.\n", - __func__, ha->host_no, rval, mcp->mb[0], mcp->mb[1])); + __func__, vha->host_no, rval, mcp->mb[0], mcp->mb[1])); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); if (mb) memcpy(mb, mcp->mb, 8 * sizeof(*mb)); @@ -2514,16 +2550,16 @@ qla2x00_enable_fce_trace(scsi_qla_host_t *ha, dma_addr_t fce_dma, } int -qla2x00_disable_fce_trace(scsi_qla_host_t *ha, uint64_t *wr, uint64_t *rd) +qla2x00_disable_fce_trace(scsi_qla_host_t *vha, uint64_t *wr, uint64_t *rd) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - if (!IS_FWI2_CAPABLE(ha)) + if (!IS_FWI2_CAPABLE(vha->hw)) return QLA_FUNCTION_FAILED; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_TRACE_CONTROL; mcp->mb[1] = TC_FCE_DISABLE; @@ -2533,12 +2569,12 @@ qla2x00_disable_fce_trace(scsi_qla_host_t *ha, uint64_t *wr, uint64_t *rd) MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x mb[1]=%x.\n", - __func__, ha->host_no, rval, mcp->mb[0], mcp->mb[1])); + __func__, vha->host_no, rval, mcp->mb[0], mcp->mb[1])); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); if (wr) *wr = (uint64_t) mcp->mb[5] << 48 | @@ -2556,17 +2592,17 @@ qla2x00_disable_fce_trace(scsi_qla_host_t *ha, uint64_t *wr, uint64_t *rd) } int -qla2x00_read_sfp(scsi_qla_host_t *ha, dma_addr_t sfp_dma, uint16_t addr, +qla2x00_read_sfp(scsi_qla_host_t *vha, dma_addr_t sfp_dma, uint16_t addr, uint16_t off, uint16_t count) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - if (!IS_FWI2_CAPABLE(ha)) + if (!IS_FWI2_CAPABLE(vha->hw)) return QLA_FUNCTION_FAILED; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_READ_SFP; mcp->mb[1] = addr; @@ -2581,30 +2617,30 @@ qla2x00_read_sfp(scsi_qla_host_t *ha, dma_addr_t sfp_dma, uint16_t addr, mcp->in_mb = MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x (%x).\n", __func__, - ha->host_no, rval, mcp->mb[0])); + vha->host_no, rval, mcp->mb[0])); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; } int -qla2x00_set_idma_speed(scsi_qla_host_t *ha, uint16_t loop_id, +qla2x00_set_idma_speed(scsi_qla_host_t *vha, uint16_t loop_id, uint16_t port_speed, uint16_t *mb) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - if (!IS_IIDMA_CAPABLE(ha)) + if (!IS_IIDMA_CAPABLE(vha->hw)) return QLA_FUNCTION_FAILED; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mcp->mb[0] = MBC_PORT_PARAMS; mcp->mb[1] = loop_id; @@ -2615,7 +2651,7 @@ qla2x00_set_idma_speed(scsi_qla_host_t *ha, uint16_t loop_id, mcp->in_mb = MBX_5|MBX_4|MBX_3|MBX_1|MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); /* Return mailbox statuses. */ if (mb != NULL) { @@ -2628,28 +2664,29 @@ qla2x00_set_idma_speed(scsi_qla_host_t *ha, uint16_t loop_id, if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__, - ha->host_no, rval)); + vha->host_no, rval)); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; } void -qla24xx_report_id_acquisition(scsi_qla_host_t *ha, +qla24xx_report_id_acquisition(scsi_qla_host_t *vha, struct vp_rpt_id_entry_24xx *rptid_entry) { uint8_t vp_idx; uint16_t stat = le16_to_cpu(rptid_entry->vp_idx); - scsi_qla_host_t *vha; + struct qla_hw_data *ha = vha->hw; + scsi_qla_host_t *vp; if (rptid_entry->entry_status != 0) return; if (rptid_entry->format == 0) { DEBUG15(printk("%s:format 0 : scsi(%ld) number of VPs setup %d," - " number of VPs acquired %d\n", __func__, ha->host_no, + " number of VPs acquired %d\n", __func__, vha->host_no, MSB(rptid_entry->vp_count), LSB(rptid_entry->vp_count))); DEBUG15(printk("%s primary port id %02x%02x%02x\n", __func__, rptid_entry->port_id[2], rptid_entry->port_id[1], @@ -2658,7 +2695,7 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *ha, vp_idx = LSB(stat); DEBUG15(printk("%s:format 1: scsi(%ld): VP[%d] enabled " "- status %d - " - "with port id %02x%02x%02x\n",__func__,ha->host_no, + "with port id %02x%02x%02x\n", __func__, vha->host_no, vp_idx, MSB(stat), rptid_entry->port_id[2], rptid_entry->port_id[1], rptid_entry->port_id[0])); @@ -2668,25 +2705,24 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *ha, if (MSB(stat) == 1) return; - list_for_each_entry(vha, &ha->vp_list, vp_list) - if (vp_idx == vha->vp_idx) + list_for_each_entry(vp, &ha->vp_list, list) + if (vp_idx == vp->vp_idx) break; - - if (!vha) + if (!vp) return; - vha->d_id.b.domain = rptid_entry->port_id[2]; - vha->d_id.b.area = rptid_entry->port_id[1]; - vha->d_id.b.al_pa = rptid_entry->port_id[0]; + vp->d_id.b.domain = rptid_entry->port_id[2]; + vp->d_id.b.area = rptid_entry->port_id[1]; + vp->d_id.b.al_pa = rptid_entry->port_id[0]; /* * Cannot configure here as we are still sitting on the * response queue. Handle it in dpc context. */ - set_bit(VP_IDX_ACQUIRED, &vha->vp_flags); - set_bit(VP_DPC_NEEDED, &ha->dpc_flags); + set_bit(VP_IDX_ACQUIRED, &vp->vp_flags); + set_bit(VP_DPC_NEEDED, &vha->dpc_flags); - qla2xxx_wake_dpc(ha); + qla2xxx_wake_dpc(vha); } } @@ -2709,15 +2745,15 @@ qla24xx_modify_vp_config(scsi_qla_host_t *vha) int rval; struct vp_config_entry_24xx *vpmod; dma_addr_t vpmod_dma; - scsi_qla_host_t *pha; + struct qla_hw_data *ha = vha->hw; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); /* This can be called by the parent */ - pha = to_qla_parent(vha); - vpmod = dma_pool_alloc(pha->s_dma_pool, GFP_KERNEL, &vpmod_dma); + vpmod = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &vpmod_dma); if (!vpmod) { DEBUG2_3(printk("%s(%ld): failed to allocate Modify VP " - "IOCB.\n", __func__, pha->host_no)); + "IOCB.\n", __func__, vha->host_no)); return QLA_MEMORY_ALLOC_FAILED; } @@ -2732,26 +2768,27 @@ qla24xx_modify_vp_config(scsi_qla_host_t *vha) memcpy(vpmod->port_name_idx1, vha->port_name, WWN_SIZE); vpmod->entry_count = 1; - rval = qla2x00_issue_iocb(pha, vpmod, vpmod_dma, 0); + rval = qla2x00_issue_iocb(base_vha, vpmod, vpmod_dma, 0); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed to issue VP config IOCB" - "(%x).\n", __func__, pha->host_no, rval)); + "(%x).\n", __func__, base_vha->host_no, rval)); } else if (vpmod->comp_status != 0) { DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " - "-- error status (%x).\n", __func__, pha->host_no, + "-- error status (%x).\n", __func__, base_vha->host_no, vpmod->comp_status)); rval = QLA_FUNCTION_FAILED; } else if (vpmod->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " - "-- completion status (%x).\n", __func__, pha->host_no, + "-- completion status (%x).\n", __func__, base_vha->host_no, le16_to_cpu(vpmod->comp_status))); rval = QLA_FUNCTION_FAILED; } else { /* EMPTY */ - DEBUG11(printk("%s(%ld): done.\n", __func__, pha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, + base_vha->host_no)); fc_vport_set_state(vha->fc_vport, FC_VPORT_INITIALIZING); } - dma_pool_free(pha->s_dma_pool, vpmod, vpmod_dma); + dma_pool_free(ha->s_dma_pool, vpmod, vpmod_dma); return rval; } @@ -2778,11 +2815,12 @@ qla24xx_control_vp(scsi_qla_host_t *vha, int cmd) int map, pos; struct vp_ctrl_entry_24xx *vce; dma_addr_t vce_dma; - scsi_qla_host_t *ha = vha->parent; + struct qla_hw_data *ha = vha->hw; int vp_index = vha->vp_idx; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); DEBUG11(printk("%s(%ld): entered. Enabling index %d\n", __func__, - ha->host_no, vp_index)); + vha->host_no, vp_index)); if (vp_index == 0 || vp_index >= ha->max_npiv_vports) return QLA_PARAMETER_ERROR; @@ -2791,7 +2829,7 @@ qla24xx_control_vp(scsi_qla_host_t *vha, int cmd) if (!vce) { DEBUG2_3(printk("%s(%ld): " "failed to allocate VP Control IOCB.\n", __func__, - ha->host_no)); + base_vha->host_no)); return QLA_MEMORY_ALLOC_FAILED; } memset(vce, 0, sizeof(struct vp_ctrl_entry_24xx)); @@ -2810,30 +2848,30 @@ qla24xx_control_vp(scsi_qla_host_t *vha, int cmd) vce->vp_idx_map[map] |= 1 << pos; mutex_unlock(&ha->vport_lock); - rval = qla2x00_issue_iocb(ha, vce, vce_dma, 0); + rval = qla2x00_issue_iocb(base_vha, vce, vce_dma, 0); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed to issue VP control IOCB" - "(%x).\n", __func__, ha->host_no, rval)); + "(%x).\n", __func__, base_vha->host_no, rval)); printk("%s(%ld): failed to issue VP control IOCB" - "(%x).\n", __func__, ha->host_no, rval); + "(%x).\n", __func__, base_vha->host_no, rval); } else if (vce->entry_status != 0) { DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " - "-- error status (%x).\n", __func__, ha->host_no, + "-- error status (%x).\n", __func__, base_vha->host_no, vce->entry_status)); printk("%s(%ld): failed to complete IOCB " - "-- error status (%x).\n", __func__, ha->host_no, + "-- error status (%x).\n", __func__, base_vha->host_no, vce->entry_status); rval = QLA_FUNCTION_FAILED; } else if (vce->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB " - "-- completion status (%x).\n", __func__, ha->host_no, + "-- completion status (%x).\n", __func__, base_vha->host_no, le16_to_cpu(vce->comp_status))); printk("%s(%ld): failed to complete IOCB " - "-- completion status (%x).\n", __func__, ha->host_no, + "-- completion status (%x).\n", __func__, base_vha->host_no, le16_to_cpu(vce->comp_status)); rval = QLA_FUNCTION_FAILED; } else { - DEBUG2(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG2(printk("%s(%ld): done.\n", __func__, base_vha->host_no)); } dma_pool_free(ha->s_dma_pool, vce, vce_dma); @@ -2863,7 +2901,7 @@ qla24xx_control_vp(scsi_qla_host_t *vha, int cmd) */ int -qla2x00_send_change_request(scsi_qla_host_t *ha, uint16_t format, +qla2x00_send_change_request(scsi_qla_host_t *vha, uint16_t format, uint16_t vp_idx) { int rval; @@ -2884,7 +2922,7 @@ qla2x00_send_change_request(scsi_qla_host_t *ha, uint16_t format, mcp->in_mb = MBX_0|MBX_1; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval == QLA_SUCCESS) { if (mcp->mb[0] != MBS_COMMAND_COMPLETE) { @@ -2897,16 +2935,16 @@ qla2x00_send_change_request(scsi_qla_host_t *ha, uint16_t format, } int -qla2x00_dump_ram(scsi_qla_host_t *ha, dma_addr_t req_dma, uint32_t addr, +qla2x00_dump_ram(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t addr, uint32_t size) { int rval; mbx_cmd_t mc; mbx_cmd_t *mcp = &mc; - DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no)); - if (MSW(addr) || IS_FWI2_CAPABLE(ha)) { + if (MSW(addr) || IS_FWI2_CAPABLE(vha->hw)) { mcp->mb[0] = MBC_DUMP_RISC_RAM_EXTENDED; mcp->mb[8] = MSW(addr); mcp->out_mb = MBX_8|MBX_0; @@ -2920,7 +2958,7 @@ qla2x00_dump_ram(scsi_qla_host_t *ha, dma_addr_t req_dma, uint32_t addr, mcp->mb[6] = MSW(MSD(req_dma)); mcp->mb[7] = LSW(MSD(req_dma)); mcp->out_mb |= MBX_7|MBX_6|MBX_3|MBX_2|MBX_1; - if (IS_FWI2_CAPABLE(ha)) { + if (IS_FWI2_CAPABLE(vha->hw)) { mcp->mb[4] = MSW(size); mcp->mb[5] = LSW(size); mcp->out_mb |= MBX_5|MBX_4; @@ -2932,13 +2970,13 @@ qla2x00_dump_ram(scsi_qla_host_t *ha, dma_addr_t req_dma, uint32_t addr, mcp->in_mb = MBX_0; mcp->tov = MBX_TOV_SECONDS; mcp->flags = 0; - rval = qla2x00_mailbox_command(ha, mcp); + rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x.\n", __func__, - ha->host_no, rval, mcp->mb[0])); + vha->host_no, rval, mcp->mb[0])); } else { - DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no)); } return rval; @@ -2954,20 +2992,21 @@ struct cs84xx_mgmt_cmd { }; int -qla84xx_verify_chip(struct scsi_qla_host *ha, uint16_t *status) +qla84xx_verify_chip(struct scsi_qla_host *vha, uint16_t *status) { int rval, retry; struct cs84xx_mgmt_cmd *mn; dma_addr_t mn_dma; uint16_t options; unsigned long flags; + struct qla_hw_data *ha = vha->hw; - DEBUG16(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + DEBUG16(printk("%s(%ld): entered.\n", __func__, vha->host_no)); mn = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &mn_dma); if (mn == NULL) { DEBUG2_3(printk("%s(%ld): failed to allocate Verify ISP84XX " - "IOCB.\n", __func__, ha->host_no)); + "IOCB.\n", __func__, vha->host_no)); return QLA_MEMORY_ALLOC_FAILED; } @@ -2986,19 +3025,19 @@ qla84xx_verify_chip(struct scsi_qla_host *ha, uint16_t *status) mn->p.req.options = cpu_to_le16(options); DEBUG16(printk("%s(%ld): Dump of Verify Request.\n", __func__, - ha->host_no)); + vha->host_no)); DEBUG16(qla2x00_dump_buffer((uint8_t *)mn, sizeof(*mn))); - rval = qla2x00_issue_iocb_timeout(ha, mn, mn_dma, 0, 120); + rval = qla2x00_issue_iocb_timeout(vha, mn, mn_dma, 0, 120); if (rval != QLA_SUCCESS) { DEBUG2_16(printk("%s(%ld): failed to issue Verify " - "IOCB (%x).\n", __func__, ha->host_no, rval)); + "IOCB (%x).\n", __func__, vha->host_no, rval)); goto verify_done; } DEBUG16(printk("%s(%ld): Dump of Verify Response.\n", __func__, - ha->host_no)); + vha->host_no)); DEBUG16(qla2x00_dump_buffer((uint8_t *)mn, sizeof(*mn))); @@ -3006,21 +3045,21 @@ qla84xx_verify_chip(struct scsi_qla_host *ha, uint16_t *status) status[1] = status[0] == CS_VCS_CHIP_FAILURE ? le16_to_cpu(mn->p.rsp.failure_code) : 0; DEBUG2_16(printk("%s(%ld): cs=%x fc=%x\n", __func__, - ha->host_no, status[0], status[1])); + vha->host_no, status[0], status[1])); if (status[0] != CS_COMPLETE) { rval = QLA_FUNCTION_FAILED; if (!(options & VCO_DONT_UPDATE_FW)) { DEBUG2_16(printk("%s(%ld): Firmware update " "failed. Retrying without update " - "firmware.\n", __func__, ha->host_no)); + "firmware.\n", __func__, vha->host_no)); options |= VCO_DONT_UPDATE_FW; options &= ~VCO_FORCE_UPDATE; retry = 1; } } else { DEBUG2_16(printk("%s(%ld): firmware updated to %x.\n", - __func__, ha->host_no, + __func__, vha->host_no, le32_to_cpu(mn->p.rsp.fw_ver))); /* NOTE: we only update OP firmware. */ @@ -3037,10 +3076,115 @@ verify_done: if (rval != QLA_SUCCESS) { DEBUG2_16(printk("%s(%ld): failed=%x.\n", __func__, - ha->host_no, rval)); + vha->host_no, rval)); } else { - DEBUG16(printk("%s(%ld): done.\n", __func__, ha->host_no)); + DEBUG16(printk("%s(%ld): done.\n", __func__, vha->host_no)); + } + + return rval; +} + +int +qla25xx_init_req_que(struct scsi_qla_host *vha, struct req_que *req, + uint8_t options) +{ + int rval; + unsigned long flags; + mbx_cmd_t mc; + mbx_cmd_t *mcp = &mc; + struct device_reg_25xxmq __iomem *reg; + struct qla_hw_data *ha = vha->hw; + + mcp->mb[0] = MBC_INITIALIZE_MULTIQ; + mcp->mb[1] = options; + mcp->mb[2] = MSW(LSD(req->dma)); + mcp->mb[3] = LSW(LSD(req->dma)); + mcp->mb[6] = MSW(MSD(req->dma)); + mcp->mb[7] = LSW(MSD(req->dma)); + mcp->mb[5] = req->length; + if (req->rsp) + mcp->mb[10] = req->rsp->id; + mcp->mb[12] = req->qos; + mcp->mb[11] = req->vp_idx; + mcp->mb[13] = req->rid; + + reg = (struct device_reg_25xxmq *)((void *)(ha->mqiobase) + + QLA_QUE_PAGE * req->id); + + mcp->mb[4] = req->id; + /* que in ptr index */ + mcp->mb[8] = 0; + /* que out ptr index */ + mcp->mb[9] = 0; + mcp->out_mb = MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|MBX_7| + MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0; + mcp->in_mb = MBX_0; + mcp->flags = MBX_DMA_OUT; + mcp->tov = 60; + + spin_lock_irqsave(&ha->hardware_lock, flags); + if (!(options & BIT_0)) { + WRT_REG_DWORD(®->req_q_in, 0); + WRT_REG_DWORD(®->req_q_out, 0); + } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + rval = qla2x00_mailbox_command(vha, mcp); + if (rval != QLA_SUCCESS) + DEBUG2_3_11(printk(KERN_WARNING "%s(%ld): failed=%x mb0=%x.\n", + __func__, vha->host_no, rval, mcp->mb[0])); + return rval; +} + +int +qla25xx_init_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp, + uint8_t options) +{ + int rval; + unsigned long flags; + mbx_cmd_t mc; + mbx_cmd_t *mcp = &mc; + struct device_reg_25xxmq __iomem *reg; + struct qla_hw_data *ha = vha->hw; + + mcp->mb[0] = MBC_INITIALIZE_MULTIQ; + mcp->mb[1] = options; + mcp->mb[2] = MSW(LSD(rsp->dma)); + mcp->mb[3] = LSW(LSD(rsp->dma)); + mcp->mb[6] = MSW(MSD(rsp->dma)); + mcp->mb[7] = LSW(MSD(rsp->dma)); + mcp->mb[5] = rsp->length; + mcp->mb[11] = rsp->vp_idx; + mcp->mb[14] = rsp->msix->vector; + mcp->mb[13] = rsp->rid; + + reg = (struct device_reg_25xxmq *)((void *)(ha->mqiobase) + + QLA_QUE_PAGE * rsp->id); + + mcp->mb[4] = rsp->id; + /* que in ptr index */ + mcp->mb[8] = 0; + /* que out ptr index */ + mcp->mb[9] = 0; + mcp->out_mb = MBX_14|MBX_13|MBX_12|MBX_11|MBX_10|MBX_9|MBX_8|MBX_7 + |MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0; + mcp->in_mb = MBX_0; + mcp->flags = MBX_DMA_OUT; + mcp->tov = 60; + + spin_lock_irqsave(&ha->hardware_lock, flags); + if (!(options & BIT_0)) { + WRT_REG_DWORD(®->rsp_q_out, 0); + WRT_REG_DWORD(®->rsp_q_in, 0); } + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + rval = qla2x00_mailbox_command(vha, mcp); + if (rval != QLA_SUCCESS) + DEBUG2_3_11(printk(KERN_WARNING "%s(%ld): failed=%x " + "mb0=%x.\n", __func__, + vha->host_no, rval, mcp->mb[0])); return rval; } + diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index 93560cd..386ffea 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -5,6 +5,7 @@ * See LICENSE.qla2xxx for copyright and licensing details. */ #include "qla_def.h" +#include "qla_gbl.h" #include <linux/moduleparam.h> #include <linux/vmalloc.h> @@ -18,7 +19,7 @@ void qla2x00_vp_stop_timer(scsi_qla_host_t *vha) { - if (vha->parent && vha->timer_active) { + if (vha->vp_idx && vha->timer_active) { del_timer_sync(&vha->timer); vha->timer_active = 0; } @@ -28,7 +29,7 @@ static uint32_t qla24xx_allocate_vp_id(scsi_qla_host_t *vha) { uint32_t vp_id; - scsi_qla_host_t *ha = vha->parent; + struct qla_hw_data *ha = vha->hw; /* Find an empty slot and assign an vp_id */ mutex_lock(&ha->vport_lock); @@ -44,7 +45,7 @@ qla24xx_allocate_vp_id(scsi_qla_host_t *vha) ha->num_vhosts++; ha->cur_vport_count++; vha->vp_idx = vp_id; - list_add_tail(&vha->vp_list, &ha->vp_list); + list_add_tail(&vha->list, &ha->vp_list); mutex_unlock(&ha->vport_lock); return vp_id; } @@ -53,24 +54,24 @@ void qla24xx_deallocate_vp_id(scsi_qla_host_t *vha) { uint16_t vp_id; - scsi_qla_host_t *ha = vha->parent; + struct qla_hw_data *ha = vha->hw; mutex_lock(&ha->vport_lock); vp_id = vha->vp_idx; ha->num_vhosts--; ha->cur_vport_count--; clear_bit(vp_id, ha->vp_idx_map); - list_del(&vha->vp_list); + list_del(&vha->list); mutex_unlock(&ha->vport_lock); } static scsi_qla_host_t * -qla24xx_find_vhost_by_name(scsi_qla_host_t *ha, uint8_t *port_name) +qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name) { scsi_qla_host_t *vha; /* Locate matching device in database. */ - list_for_each_entry(vha, &ha->vp_list, vp_list) { + list_for_each_entry(vha, &ha->vp_list, list) { if (!memcmp(port_name, vha->port_name, WWN_SIZE)) return vha; } @@ -94,16 +95,13 @@ static void qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha) { fc_port_t *fcport; - scsi_qla_host_t *pha = to_qla_parent(vha); - - list_for_each_entry(fcport, &pha->fcports, list) { - if (fcport->vp_idx != vha->vp_idx) - continue; + list_for_each_entry(fcport, &vha->vp_fcports, list) { DEBUG15(printk("scsi(%ld): Marking port dead, " "loop_id=0x%04x :%x\n", vha->host_no, fcport->loop_id, fcport->vp_idx)); + atomic_set(&fcport->state, FCS_DEVICE_DEAD); qla2x00_mark_device_lost(vha, fcport, 0, 0); atomic_set(&fcport->state, FCS_UNCONFIGURED); } @@ -118,7 +116,6 @@ qla24xx_disable_vp(scsi_qla_host_t *vha) atomic_set(&vha->loop_state, LOOP_DOWN); atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); - /* Delete all vp's fcports from parent's list */ qla2x00_mark_vp_devices_dead(vha); atomic_set(&vha->vp_state, VP_FAILED); vha->flags.management_server_logged_in = 0; @@ -135,11 +132,12 @@ int qla24xx_enable_vp(scsi_qla_host_t *vha) { int ret; - scsi_qla_host_t *ha = vha->parent; + struct qla_hw_data *ha = vha->hw; + scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); /* Check if physical ha port is Up */ - if (atomic_read(&ha->loop_state) == LOOP_DOWN || - atomic_read(&ha->loop_state) == LOOP_DEAD ) { + if (atomic_read(&base_vha->loop_state) == LOOP_DOWN || + atomic_read(&base_vha->loop_state) == LOOP_DEAD) { vha->vp_err_state = VP_ERR_PORTDWN; fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN); goto enable_failed; @@ -177,8 +175,8 @@ qla24xx_configure_vp(scsi_qla_host_t *vha) vha->host_no, __func__)); ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx); if (ret != QLA_SUCCESS) { - DEBUG15(qla_printk(KERN_ERR, vha, "Failed to enable receiving" - " of RSCN requests: 0x%x\n", ret)); + DEBUG15(qla_printk(KERN_ERR, vha->hw, "Failed to enable " + "receiving of RSCN requests: 0x%x\n", ret)); return; } else { /* Corresponds to SCR enabled */ @@ -194,25 +192,14 @@ qla24xx_configure_vp(scsi_qla_host_t *vha) } void -qla2x00_alert_all_vps(scsi_qla_host_t *ha, uint16_t *mb) +qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb) { - int i, vp_idx_matched; scsi_qla_host_t *vha; + struct qla_hw_data *ha = rsp->hw; + int i = 0; - if (ha->parent) - return; - - for_each_mapped_vp_idx(ha, i) { - vp_idx_matched = 0; - - list_for_each_entry(vha, &ha->vp_list, vp_list) { - if (i == vha->vp_idx) { - vp_idx_matched = 1; - break; - } - } - - if (vp_idx_matched) { + list_for_each_entry(vha, &ha->vp_list, list) { + if (vha->vp_idx) { switch (mb[0]) { case MBA_LIP_OCCURRED: case MBA_LOOP_UP: @@ -223,16 +210,17 @@ qla2x00_alert_all_vps(scsi_qla_host_t *ha, uint16_t *mb) case MBA_PORT_UPDATE: case MBA_RSCN_UPDATE: DEBUG15(printk("scsi(%ld)%s: Async_event for" - " VP[%d], mb = 0x%x, vha=%p\n", - vha->host_no, __func__,i, *mb, vha)); - qla2x00_async_event(vha, mb); + " VP[%d], mb = 0x%x, vha=%p\n", + vha->host_no, __func__, i, *mb, vha)); + qla2x00_async_event(vha, rsp, mb); break; } } + i++; } } -void +int qla2x00_vp_abort_isp(scsi_qla_host_t *vha) { /* @@ -247,38 +235,56 @@ qla2x00_vp_abort_isp(scsi_qla_host_t *vha) atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); } + /* To exclusively reset vport, we need to log it out first.*/ + if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) + qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); + DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n", vha->host_no, vha->vp_idx)); - qla24xx_enable_vp(vha); + return qla24xx_enable_vp(vha); } static int qla2x00_do_dpc_vp(scsi_qla_host_t *vha) { - scsi_qla_host_t *ha = vha->parent; + struct qla_hw_data *ha = vha->hw; + scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) { /* VP acquired. complete port configuration */ - if (atomic_read(&ha->loop_state) == LOOP_READY) { + if (atomic_read(&base_vha->loop_state) == LOOP_READY) { qla24xx_configure_vp(vha); } else { set_bit(VP_IDX_ACQUIRED, &vha->vp_flags); - set_bit(VP_DPC_NEEDED, &ha->dpc_flags); + set_bit(VP_DPC_NEEDED, &base_vha->dpc_flags); } return 0; } - if (test_and_clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) - qla2x00_vp_abort_isp(vha); + if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) { + qla2x00_update_fcports(vha); + clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags); + } + + if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) && + !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) && + atomic_read(&vha->loop_state) != LOOP_DOWN) { + + DEBUG(printk("scsi(%ld): qla2x00_port_login()\n", + vha->host_no)); + qla2x00_relogin(vha); + + DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n", + vha->host_no)); + } if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) && (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) { clear_bit(RESET_ACTIVE, &vha->dpc_flags); } - if (atomic_read(&vha->vp_state) == VP_ACTIVE && - test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { + if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) { qla2x00_loop_resync(vha); clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags); @@ -289,38 +295,30 @@ qla2x00_do_dpc_vp(scsi_qla_host_t *vha) } void -qla2x00_do_dpc_all_vps(scsi_qla_host_t *ha) +qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha) { int ret; - int i, vp_idx_matched; - scsi_qla_host_t *vha; + struct qla_hw_data *ha = vha->hw; + scsi_qla_host_t *vp; - if (ha->parent) + if (vha->vp_idx) return; if (list_empty(&ha->vp_list)) return; - clear_bit(VP_DPC_NEEDED, &ha->dpc_flags); - - for_each_mapped_vp_idx(ha, i) { - vp_idx_matched = 0; - - list_for_each_entry(vha, &ha->vp_list, vp_list) { - if (i == vha->vp_idx) { - vp_idx_matched = 1; - break; - } - } + clear_bit(VP_DPC_NEEDED, &vha->dpc_flags); - if (vp_idx_matched) - ret = qla2x00_do_dpc_vp(vha); + list_for_each_entry(vp, &ha->vp_list, list) { + if (vp->vp_idx) + ret = qla2x00_do_dpc_vp(vp); } } int qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport) { - scsi_qla_host_t *ha = shost_priv(fc_vport->shost); + scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost); + struct qla_hw_data *ha = base_vha->hw; scsi_qla_host_t *vha; uint8_t port_name[WWN_SIZE]; @@ -337,7 +335,7 @@ qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport) /* Check up unique WWPN */ u64_to_wwn(fc_vport->port_name, port_name); - if (!memcmp(port_name, ha->port_name, WWN_SIZE)) + if (!memcmp(port_name, base_vha->port_name, WWN_SIZE)) return VPCERR_BAD_WWN; vha = qla24xx_find_vhost_by_name(ha, port_name); if (vha) @@ -346,7 +344,7 @@ qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport) /* Check up max-npiv-supports */ if (ha->num_vhosts > ha->max_npiv_vports) { DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than " - "max_npv_vports %ud.\n", ha->host_no, + "max_npv_vports %ud.\n", base_vha->host_no, ha->num_vhosts, ha->max_npiv_vports)); return VPCERR_UNSUPPORTED; } @@ -356,59 +354,34 @@ qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport) scsi_qla_host_t * qla24xx_create_vhost(struct fc_vport *fc_vport) { - scsi_qla_host_t *ha = shost_priv(fc_vport->shost); + scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost); + struct qla_hw_data *ha = base_vha->hw; scsi_qla_host_t *vha; + struct scsi_host_template *sht = &qla24xx_driver_template; struct Scsi_Host *host; - host = scsi_host_alloc(&qla24xx_driver_template, - sizeof(scsi_qla_host_t)); - if (!host) { - printk(KERN_WARNING - "qla2xxx: scsi_host_alloc() failed for vport\n"); + vha = qla2x00_create_host(sht, ha); + if (!vha) { + DEBUG(printk("qla2xxx: scsi_host_alloc() failed for vport\n")); return(NULL); } - vha = shost_priv(host); - - /* clone the parent hba */ - memcpy(vha, ha, sizeof (scsi_qla_host_t)); - + host = vha->host; fc_vport->dd_data = vha; - - vha->node_name = kmalloc(WWN_SIZE * sizeof(char), GFP_KERNEL); - if (!vha->node_name) - goto create_vhost_failed_1; - - vha->port_name = kmalloc(WWN_SIZE * sizeof(char), GFP_KERNEL); - if (!vha->port_name) - goto create_vhost_failed_2; - /* New host info */ u64_to_wwn(fc_vport->node_name, vha->node_name); u64_to_wwn(fc_vport->port_name, vha->port_name); - vha->host = host; - vha->host_no = host->host_no; - vha->parent = ha; vha->fc_vport = fc_vport; vha->device_flags = 0; vha->vp_idx = qla24xx_allocate_vp_id(vha); if (vha->vp_idx > ha->max_npiv_vports) { DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n", vha->host_no)); - goto create_vhost_failed_3; + goto create_vhost_failed; } vha->mgmt_svr_loop_id = 10 + vha->vp_idx; - init_completion(&vha->mbx_cmd_comp); - complete(&vha->mbx_cmd_comp); - init_completion(&vha->mbx_intr_comp); - - INIT_LIST_HEAD(&vha->list); - INIT_LIST_HEAD(&vha->fcports); - INIT_LIST_HEAD(&vha->vp_fcports); - INIT_LIST_HEAD(&vha->work_list); - vha->dpc_flags = 0L; set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); @@ -423,7 +396,9 @@ qla24xx_create_vhost(struct fc_vport *fc_vport) qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL); - host->can_queue = vha->request_q_length + 128; + memset(vha->req_ques, 0, sizeof(vha->req_ques) * QLA_MAX_HOST_QUES); + vha->req_ques[0] = ha->req_q_map[0]->id; + host->can_queue = ha->req_q_map[0]->length + 128; host->this_id = 255; host->cmd_per_lun = 3; host->max_cmd_len = MAX_CMDSZ; @@ -440,12 +415,341 @@ qla24xx_create_vhost(struct fc_vport *fc_vport) return vha; -create_vhost_failed_3: - kfree(vha->port_name); +create_vhost_failed: + return NULL; +} -create_vhost_failed_2: - kfree(vha->node_name); +static void +qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req) +{ + struct qla_hw_data *ha = vha->hw; + uint16_t que_id = req->id; + + dma_free_coherent(&ha->pdev->dev, (req->length + 1) * + sizeof(request_t), req->ring, req->dma); + req->ring = NULL; + req->dma = 0; + if (que_id) { + ha->req_q_map[que_id] = NULL; + mutex_lock(&ha->vport_lock); + clear_bit(que_id, ha->req_qid_map); + mutex_unlock(&ha->vport_lock); + } + kfree(req); + req = NULL; +} -create_vhost_failed_1: - return NULL; +static void +qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) +{ + struct qla_hw_data *ha = vha->hw; + uint16_t que_id = rsp->id; + + if (rsp->msix && rsp->msix->have_irq) { + free_irq(rsp->msix->vector, rsp); + rsp->msix->have_irq = 0; + rsp->msix->rsp = NULL; + } + dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) * + sizeof(response_t), rsp->ring, rsp->dma); + rsp->ring = NULL; + rsp->dma = 0; + if (que_id) { + ha->rsp_q_map[que_id] = NULL; + mutex_lock(&ha->vport_lock); + clear_bit(que_id, ha->rsp_qid_map); + mutex_unlock(&ha->vport_lock); + } + kfree(rsp); + rsp = NULL; +} + +int +qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req) +{ + int ret = -1; + + if (req) { + req->options |= BIT_0; + ret = qla25xx_init_req_que(vha, req, req->options); + } + if (ret == QLA_SUCCESS) + qla25xx_free_req_que(vha, req); + + return ret; +} + +int +qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) +{ + int ret = -1; + + if (rsp) { + rsp->options |= BIT_0; + ret = qla25xx_init_rsp_que(vha, rsp, rsp->options); + } + if (ret == QLA_SUCCESS) + qla25xx_free_rsp_que(vha, rsp); + + return ret; +} + +int qla25xx_update_req_que(struct scsi_qla_host *vha, uint8_t que, uint8_t qos) +{ + int ret = 0; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[que]; + + req->options |= BIT_3; + req->qos = qos; + ret = qla25xx_init_req_que(vha, req, req->options); + if (ret != QLA_SUCCESS) + DEBUG2_17(printk(KERN_WARNING "%s failed\n", __func__)); + /* restore options bit */ + req->options &= ~BIT_3; + return ret; +} + + +/* Delete all queues for a given vhost */ +int +qla25xx_delete_queues(struct scsi_qla_host *vha, uint8_t que_no) +{ + int cnt, ret = 0; + struct req_que *req = NULL; + struct rsp_que *rsp = NULL; + struct qla_hw_data *ha = vha->hw; + + if (que_no) { + /* Delete request queue */ + req = ha->req_q_map[que_no]; + if (req) { + rsp = req->rsp; + ret = qla25xx_delete_req_que(vha, req); + if (ret != QLA_SUCCESS) { + qla_printk(KERN_WARNING, ha, + "Couldn't delete req que %d\n", req->id); + return ret; + } + /* Delete associated response queue */ + if (rsp) { + ret = qla25xx_delete_rsp_que(vha, rsp); + if (ret != QLA_SUCCESS) { + qla_printk(KERN_WARNING, ha, + "Couldn't delete rsp que %d\n", + rsp->id); + return ret; + } + } + } + } else { /* delete all queues of this host */ + for (cnt = 0; cnt < QLA_MAX_HOST_QUES; cnt++) { + /* Delete request queues */ + req = ha->req_q_map[vha->req_ques[cnt]]; + if (req && req->id) { + rsp = req->rsp; + ret = qla25xx_delete_req_que(vha, req); + if (ret != QLA_SUCCESS) { + qla_printk(KERN_WARNING, ha, + "Couldn't delete req que %d\n", + vha->req_ques[cnt]); + return ret; + } + vha->req_ques[cnt] = ha->req_q_map[0]->id; + /* Delete associated response queue */ + if (rsp && rsp->id) { + ret = qla25xx_delete_rsp_que(vha, rsp); + if (ret != QLA_SUCCESS) { + qla_printk(KERN_WARNING, ha, + "Couldn't delete rsp que %d\n", + rsp->id); + return ret; + } + } + } + } + } + qla_printk(KERN_INFO, ha, "Queues deleted for vport:%d\n", + vha->vp_idx); + return ret; +} + +int +qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options, + uint8_t vp_idx, uint16_t rid, uint8_t rsp_que, uint8_t qos) +{ + int ret = 0; + struct req_que *req = NULL; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); + uint16_t que_id = 0; + + req = kzalloc(sizeof(struct req_que), GFP_KERNEL); + if (req == NULL) { + qla_printk(KERN_WARNING, ha, "could not allocate memory" + "for request que\n"); + goto que_failed; + } + + req->length = REQUEST_ENTRY_CNT_24XX; + req->ring = dma_alloc_coherent(&ha->pdev->dev, + (req->length + 1) * sizeof(request_t), + &req->dma, GFP_KERNEL); + if (req->ring == NULL) { + qla_printk(KERN_WARNING, ha, + "Memory Allocation failed - request_ring\n"); + goto que_failed; + } + + mutex_lock(&ha->vport_lock); + que_id = find_first_zero_bit(ha->req_qid_map, ha->max_queues); + if (que_id >= ha->max_queues) { + mutex_unlock(&ha->vport_lock); + qla_printk(KERN_INFO, ha, "No resources to create " + "additional request queue\n"); + goto que_failed; + } + set_bit(que_id, ha->req_qid_map); + ha->req_q_map[que_id] = req; + req->rid = rid; + req->vp_idx = vp_idx; + req->qos = qos; + + if (ha->rsp_q_map[rsp_que]) + req->rsp = ha->rsp_q_map[rsp_que]; + /* Use alternate PCI bus number */ + if (MSB(req->rid)) + options |= BIT_4; + /* Use alternate PCI devfn */ + if (LSB(req->rid)) + options |= BIT_5; + req->options = options; + req->ring_ptr = req->ring; + req->ring_index = 0; + req->cnt = req->length; + req->id = que_id; + mutex_unlock(&ha->vport_lock); + + ret = qla25xx_init_req_que(base_vha, req, options); + if (ret != QLA_SUCCESS) { + qla_printk(KERN_WARNING, ha, "%s failed\n", __func__); + mutex_lock(&ha->vport_lock); + clear_bit(que_id, ha->req_qid_map); + mutex_unlock(&ha->vport_lock); + goto que_failed; + } + + return req->id; + +que_failed: + qla25xx_free_req_que(base_vha, req); + return 0; +} + +/* create response queue */ +int +qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options, + uint8_t vp_idx, uint16_t rid) +{ + int ret = 0; + struct rsp_que *rsp = NULL; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); + uint16_t que_id = 0;; + + rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL); + if (rsp == NULL) { + qla_printk(KERN_WARNING, ha, "could not allocate memory for" + " response que\n"); + goto que_failed; + } + + rsp->length = RESPONSE_ENTRY_CNT_2300; + rsp->ring = dma_alloc_coherent(&ha->pdev->dev, + (rsp->length + 1) * sizeof(response_t), + &rsp->dma, GFP_KERNEL); + if (rsp->ring == NULL) { + qla_printk(KERN_WARNING, ha, + "Memory Allocation failed - response_ring\n"); + goto que_failed; + } + + mutex_lock(&ha->vport_lock); + que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_queues); + if (que_id >= ha->max_queues) { + mutex_unlock(&ha->vport_lock); + qla_printk(KERN_INFO, ha, "No resources to create " + "additional response queue\n"); + goto que_failed; + } + set_bit(que_id, ha->rsp_qid_map); + + if (ha->flags.msix_enabled) + rsp->msix = &ha->msix_entries[que_id + 1]; + else + qla_printk(KERN_WARNING, ha, "msix not enabled\n"); + + ha->rsp_q_map[que_id] = rsp; + rsp->rid = rid; + rsp->vp_idx = vp_idx; + rsp->hw = ha; + /* Use alternate PCI bus number */ + if (MSB(rsp->rid)) + options |= BIT_4; + /* Use alternate PCI devfn */ + if (LSB(rsp->rid)) + options |= BIT_5; + rsp->options = options; + rsp->ring_ptr = rsp->ring; + rsp->ring_index = 0; + rsp->id = que_id; + mutex_unlock(&ha->vport_lock); + + ret = qla25xx_request_irq(rsp); + if (ret) + goto que_failed; + + ret = qla25xx_init_rsp_que(base_vha, rsp, options); + if (ret != QLA_SUCCESS) { + qla_printk(KERN_WARNING, ha, "%s failed\n", __func__); + mutex_lock(&ha->vport_lock); + clear_bit(que_id, ha->rsp_qid_map); + mutex_unlock(&ha->vport_lock); + goto que_failed; + } + + qla2x00_init_response_q_entries(rsp); + + return rsp->id; + +que_failed: + qla25xx_free_rsp_que(base_vha, rsp); + return 0; +} + +int +qla25xx_create_queues(struct scsi_qla_host *vha, uint8_t qos) +{ + uint16_t options = 0; + uint8_t ret = 0; + struct qla_hw_data *ha = vha->hw; + + options |= BIT_1; + ret = qla25xx_create_rsp_que(ha, options, vha->vp_idx, 0); + if (!ret) { + qla_printk(KERN_WARNING, ha, "Response Que create failed\n"); + return ret; + } else + qla_printk(KERN_INFO, ha, "Response Que:%d created.\n", ret); + + options = 0; + if (qos & BIT_7) + options |= BIT_8; + ret = qla25xx_create_req_que(ha, options, vha->vp_idx, 0, ret, + qos & ~BIT_7); + if (ret) { + vha->req_ques[0] = ret; + qla_printk(KERN_INFO, ha, "Request Que:%d created.\n", ret); + } else + qla_printk(KERN_WARNING, ha, "Request Que create failed\n"); + + return ret; } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 3556720..8ea9277 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -92,7 +92,12 @@ MODULE_PARM_DESC(ql2xiidmaenable, "Enables iIDMA settings " "Default is 1 - perform iIDMA. 0 - no iIDMA."); - +int ql2xmaxqueues = 1; +module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR); +MODULE_PARM_DESC(ql2xmaxqueues, + "Enables MQ settings " + "Default is 1 for single queue. Set it to number \ + of queues in MQ mode."); /* * SCSI host template entry points */ @@ -183,42 +188,108 @@ struct scsi_transport_template *qla2xxx_transport_vport_template = NULL; */ __inline__ void -qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval) +qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval) { - init_timer(&ha->timer); - ha->timer.expires = jiffies + interval * HZ; - ha->timer.data = (unsigned long)ha; - ha->timer.function = (void (*)(unsigned long))func; - add_timer(&ha->timer); - ha->timer_active = 1; + init_timer(&vha->timer); + vha->timer.expires = jiffies + interval * HZ; + vha->timer.data = (unsigned long)vha; + vha->timer.function = (void (*)(unsigned long))func; + add_timer(&vha->timer); + vha->timer_active = 1; } static inline void -qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval) +qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval) { - mod_timer(&ha->timer, jiffies + interval * HZ); + mod_timer(&vha->timer, jiffies + interval * HZ); } static __inline__ void -qla2x00_stop_timer(scsi_qla_host_t *ha) +qla2x00_stop_timer(scsi_qla_host_t *vha) { - del_timer_sync(&ha->timer); - ha->timer_active = 0; + del_timer_sync(&vha->timer); + vha->timer_active = 0; } static int qla2x00_do_dpc(void *data); static void qla2x00_rst_aen(scsi_qla_host_t *); -static int qla2x00_mem_alloc(scsi_qla_host_t *); -static void qla2x00_mem_free(scsi_qla_host_t *ha); -static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *); +static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t, + struct req_que **, struct rsp_que **); +static void qla2x00_mem_free(struct qla_hw_data *); +static void qla2x00_sp_free_dma(srb_t *); /* -------------------------------------------------------------------------- */ +static int qla2x00_alloc_queues(struct qla_hw_data *ha) +{ + ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_queues, + GFP_KERNEL); + if (!ha->req_q_map) { + qla_printk(KERN_WARNING, ha, + "Unable to allocate memory for request queue ptrs\n"); + goto fail_req_map; + } + + ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_queues, + GFP_KERNEL); + if (!ha->rsp_q_map) { + qla_printk(KERN_WARNING, ha, + "Unable to allocate memory for response queue ptrs\n"); + goto fail_rsp_map; + } + set_bit(0, ha->rsp_qid_map); + set_bit(0, ha->req_qid_map); + return 1; + +fail_rsp_map: + kfree(ha->req_q_map); + ha->req_q_map = NULL; +fail_req_map: + return -ENOMEM; +} + +static void qla2x00_free_que(struct qla_hw_data *ha, struct req_que *req, + struct rsp_que *rsp) +{ + if (rsp && rsp->ring) + dma_free_coherent(&ha->pdev->dev, + (rsp->length + 1) * sizeof(response_t), + rsp->ring, rsp->dma); + + kfree(rsp); + rsp = NULL; + if (req && req->ring) + dma_free_coherent(&ha->pdev->dev, + (req->length + 1) * sizeof(request_t), + req->ring, req->dma); + + kfree(req); + req = NULL; +} + +static void qla2x00_free_queues(struct qla_hw_data *ha) +{ + struct req_que *req; + struct rsp_que *rsp; + int cnt; + + for (cnt = 0; cnt < ha->max_queues; cnt++) { + rsp = ha->rsp_q_map[cnt]; + req = ha->req_q_map[cnt]; + qla2x00_free_que(ha, req, rsp); + } + kfree(ha->rsp_q_map); + ha->rsp_q_map = NULL; + + kfree(ha->req_q_map); + ha->req_q_map = NULL; +} static char * -qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str) +qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str) { + struct qla_hw_data *ha = vha->hw; static char *pci_bus_modes[] = { "33", "66", "100", "133", }; @@ -240,9 +311,10 @@ qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str) } static char * -qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str) +qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str) { static char *pci_bus_modes[] = { "33", "66", "100", "133", }; + struct qla_hw_data *ha = vha->hw; uint32_t pci_bus; int pcie_reg; @@ -290,9 +362,10 @@ qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str) } static char * -qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str) +qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str) { char un_str[10]; + struct qla_hw_data *ha = vha->hw; sprintf(str, "%d.%02d.%02d ", ha->fw_major_version, ha->fw_minor_version, @@ -328,8 +401,9 @@ qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str) } static char * -qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str) +qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str) { + struct qla_hw_data *ha = vha->hw; sprintf(str, "%d.%02d.%02d ", ha->fw_major_version, ha->fw_minor_version, ha->fw_subminor_version); @@ -354,18 +428,20 @@ qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str) } static inline srb_t * -qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport, +qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport, struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { srb_t *sp; + struct qla_hw_data *ha = vha->hw; sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); if (!sp) return sp; - sp->ha = ha; + sp->vha = vha; sp->fcport = fcport; sp->cmd = cmd; + sp->que = ha->req_q_map[0]; sp->flags = 0; CMD_SP(cmd) = (void *)sp; cmd->scsi_done = done; @@ -376,9 +452,10 @@ qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport, static int qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { - scsi_qla_host_t *ha = shost_priv(cmd->device->host); + scsi_qla_host_t *vha = shost_priv(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device)); + struct qla_hw_data *ha = vha->hw; srb_t *sp; int rval; @@ -399,33 +476,33 @@ qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) if (atomic_read(&fcport->state) != FCS_ONLINE) { if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD || - atomic_read(&ha->loop_state) == LOOP_DEAD) { + atomic_read(&vha->loop_state) == LOOP_DEAD) { cmd->result = DID_NO_CONNECT << 16; goto qc_fail_command; } goto qc_target_busy; } - spin_unlock_irq(ha->host->host_lock); + spin_unlock_irq(vha->host->host_lock); - sp = qla2x00_get_new_sp(ha, fcport, cmd, done); + sp = qla2x00_get_new_sp(vha, fcport, cmd, done); if (!sp) goto qc_host_busy_lock; - rval = qla2x00_start_scsi(sp); + rval = ha->isp_ops->start_scsi(sp); if (rval != QLA_SUCCESS) goto qc_host_busy_free_sp; - spin_lock_irq(ha->host->host_lock); + spin_lock_irq(vha->host->host_lock); return 0; qc_host_busy_free_sp: - qla2x00_sp_free_dma(ha, sp); + qla2x00_sp_free_dma(sp); mempool_free(sp, ha->srb_mempool); qc_host_busy_lock: - spin_lock_irq(ha->host->host_lock); + spin_lock_irq(vha->host->host_lock); return SCSI_MLQUEUE_HOST_BUSY; qc_target_busy: @@ -441,14 +518,15 @@ qc_fail_command: static int qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { - scsi_qla_host_t *ha = shost_priv(cmd->device->host); + scsi_qla_host_t *vha = shost_priv(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device)); + struct qla_hw_data *ha = vha->hw; + struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); srb_t *sp; int rval; - scsi_qla_host_t *pha = to_qla_parent(ha); - if (unlikely(pci_channel_offline(pha->pdev))) { + if (unlikely(pci_channel_offline(ha->pdev))) { cmd->result = DID_REQUEUE << 16; goto qc24_fail_command; } @@ -465,33 +543,33 @@ qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) if (atomic_read(&fcport->state) != FCS_ONLINE) { if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD || - atomic_read(&pha->loop_state) == LOOP_DEAD) { + atomic_read(&base_vha->loop_state) == LOOP_DEAD) { cmd->result = DID_NO_CONNECT << 16; goto qc24_fail_command; } goto qc24_target_busy; } - spin_unlock_irq(ha->host->host_lock); + spin_unlock_irq(vha->host->host_lock); - sp = qla2x00_get_new_sp(pha, fcport, cmd, done); + sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done); if (!sp) goto qc24_host_busy_lock; - rval = qla24xx_start_scsi(sp); + rval = ha->isp_ops->start_scsi(sp); if (rval != QLA_SUCCESS) goto qc24_host_busy_free_sp; - spin_lock_irq(ha->host->host_lock); + spin_lock_irq(vha->host->host_lock); return 0; qc24_host_busy_free_sp: - qla2x00_sp_free_dma(pha, sp); - mempool_free(sp, pha->srb_mempool); + qla2x00_sp_free_dma(sp); + mempool_free(sp, ha->srb_mempool); qc24_host_busy_lock: - spin_lock_irq(ha->host->host_lock); + spin_lock_irq(vha->host->host_lock); return SCSI_MLQUEUE_HOST_BUSY; qc24_target_busy: @@ -510,17 +588,14 @@ qc24_fail_command: * max time. * * Input: - * ha = actual ha whose done queue will contain the command - * returned by firmware. * cmd = Scsi Command to wait on. - * flag = Abort/Reset(Bus or Device Reset) * * Return: * Not Found : 0 * Found : 1 */ static int -qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd) +qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd) { #define ABORT_POLLING_PERIOD 1000 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD)) @@ -557,21 +632,22 @@ qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd) * Failed (Adapter is offline/disabled) : 1 */ int -qla2x00_wait_for_hba_online(scsi_qla_host_t *ha) +qla2x00_wait_for_hba_online(scsi_qla_host_t *vha) { int return_status; unsigned long wait_online; - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; + scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ); - while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) || - test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) || - test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) || - pha->dpc_active) && time_before(jiffies, wait_online)) { + while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) || + test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) || + test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) || + ha->dpc_active) && time_before(jiffies, wait_online)) { msleep(1000); } - if (pha->flags.online) + if (base_vha->flags.online) return_status = QLA_SUCCESS; else return_status = QLA_FUNCTION_FAILED; @@ -596,19 +672,20 @@ qla2x00_wait_for_hba_online(scsi_qla_host_t *ha) * Failed (LOOP_NOT_READY) : 1 */ static inline int -qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha) +qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha) { int return_status = QLA_SUCCESS; unsigned long loop_timeout ; - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; + scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); /* wait for 5 min at the max for loop to be ready */ loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ); - while ((!atomic_read(&pha->loop_down_timer) && - atomic_read(&pha->loop_state) == LOOP_DOWN) || - atomic_read(&pha->loop_state) != LOOP_READY) { - if (atomic_read(&pha->loop_state) == LOOP_DEAD) { + while ((!atomic_read(&base_vha->loop_down_timer) && + atomic_read(&base_vha->loop_state) == LOOP_DOWN) || + atomic_read(&base_vha->loop_state) != LOOP_READY) { + if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) { return_status = QLA_FUNCTION_FAILED; break; } @@ -624,35 +701,42 @@ qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha) void qla2x00_abort_fcport_cmds(fc_port_t *fcport) { - int cnt; + int cnt, que, id; unsigned long flags; srb_t *sp; - scsi_qla_host_t *ha = fcport->ha; - scsi_qla_host_t *pha = to_qla_parent(ha); + scsi_qla_host_t *vha = fcport->vha; + struct qla_hw_data *ha = vha->hw; + struct req_que *req; - spin_lock_irqsave(&pha->hardware_lock, flags); - for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { - sp = pha->outstanding_cmds[cnt]; - if (!sp) - continue; - if (sp->fcport != fcport) + spin_lock_irqsave(&ha->hardware_lock, flags); + for (que = 0; que < QLA_MAX_HOST_QUES; que++) { + id = vha->req_ques[que]; + req = ha->req_q_map[id]; + if (!req) continue; + for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { + sp = req->outstanding_cmds[cnt]; + if (!sp) + continue; + if (sp->fcport != fcport) + continue; - spin_unlock_irqrestore(&pha->hardware_lock, flags); - if (ha->isp_ops->abort_command(ha, sp)) { - DEBUG2(qla_printk(KERN_WARNING, ha, - "Abort failed -- %lx\n", sp->cmd->serial_number)); - } else { - if (qla2x00_eh_wait_on_command(ha, sp->cmd) != - QLA_SUCCESS) + spin_unlock_irqrestore(&ha->hardware_lock, flags); + if (ha->isp_ops->abort_command(vha, sp, req)) { DEBUG2(qla_printk(KERN_WARNING, ha, - "Abort failed while waiting -- %lx\n", - sp->cmd->serial_number)); - + "Abort failed -- %lx\n", + sp->cmd->serial_number)); + } else { + if (qla2x00_eh_wait_on_command(sp->cmd) != + QLA_SUCCESS) + DEBUG2(qla_printk(KERN_WARNING, ha, + "Abort failed while waiting -- %lx\n", + sp->cmd->serial_number)); + } + spin_lock_irqsave(&ha->hardware_lock, flags); } - spin_lock_irqsave(&pha->hardware_lock, flags); } - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); } static void @@ -690,14 +774,16 @@ qla2x00_block_error_handler(struct scsi_cmnd *cmnd) static int qla2xxx_eh_abort(struct scsi_cmnd *cmd) { - scsi_qla_host_t *ha = shost_priv(cmd->device->host); + scsi_qla_host_t *vha = shost_priv(cmd->device->host); srb_t *sp; int ret, i; unsigned int id, lun; unsigned long serial; unsigned long flags; int wait = 0; - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; + struct req_que *req; + srb_t *spt; qla2x00_block_error_handler(cmd); @@ -709,11 +795,15 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd) id = cmd->device->id; lun = cmd->device->lun; serial = cmd->serial_number; + spt = (srb_t *) CMD_SP(cmd); + if (!spt) + return SUCCESS; + req = spt->que; /* Check active list for command command. */ - spin_lock_irqsave(&pha->hardware_lock, flags); + spin_lock_irqsave(&ha->hardware_lock, flags); for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) { - sp = pha->outstanding_cmds[i]; + sp = req->outstanding_cmds[i]; if (sp == NULL) continue; @@ -721,38 +811,36 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd) if (sp->cmd != cmd) continue; - DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n", - __func__, ha->host_no, sp, serial)); + DEBUG2(printk("%s(%ld): aborting sp %p from RISC." + " pid=%ld.\n", __func__, vha->host_no, sp, serial)); - spin_unlock_irqrestore(&pha->hardware_lock, flags); - if (ha->isp_ops->abort_command(ha, sp)) { + spin_unlock_irqrestore(&ha->hardware_lock, flags); + if (ha->isp_ops->abort_command(vha, sp, req)) { DEBUG2(printk("%s(%ld): abort_command " - "mbx failed.\n", __func__, ha->host_no)); - ret = FAILED; + "mbx failed.\n", __func__, vha->host_no)); } else { DEBUG3(printk("%s(%ld): abort_command " - "mbx success.\n", __func__, ha->host_no)); + "mbx success.\n", __func__, vha->host_no)); wait = 1; } - spin_lock_irqsave(&pha->hardware_lock, flags); - + spin_lock_irqsave(&ha->hardware_lock, flags); break; } - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); /* Wait for the command to be returned. */ if (wait) { - if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) { + if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) { qla_printk(KERN_ERR, ha, "scsi(%ld:%d:%d): Abort handler timed out -- %lx " - "%x.\n", ha->host_no, id, lun, serial, ret); + "%x.\n", vha->host_no, id, lun, serial, ret); ret = FAILED; } } qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n", - ha->host_no, id, lun, wait, serial, ret); + vha->host_no, id, lun, wait, serial, ret); return ret; } @@ -764,23 +852,27 @@ enum nexus_wait_type { }; static int -qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha, unsigned int t, - unsigned int l, enum nexus_wait_type type) +qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t, + unsigned int l, srb_t *sp, enum nexus_wait_type type) { int cnt, match, status; - srb_t *sp; unsigned long flags; - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; + struct req_que *req; status = QLA_SUCCESS; - spin_lock_irqsave(&pha->hardware_lock, flags); - for (cnt = 1; status == QLA_SUCCESS && cnt < MAX_OUTSTANDING_COMMANDS; - cnt++) { - sp = pha->outstanding_cmds[cnt]; + if (!sp) + return status; + + spin_lock_irqsave(&ha->hardware_lock, flags); + req = sp->que; + for (cnt = 1; status == QLA_SUCCESS && + cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { + sp = req->outstanding_cmds[cnt]; if (!sp) continue; - if (ha->vp_idx != sp->fcport->ha->vp_idx) + if (vha->vp_idx != sp->fcport->vha->vp_idx) continue; match = 0; switch (type) { @@ -792,17 +884,17 @@ qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha, unsigned int t, break; case WAIT_LUN: match = (sp->cmd->device->id == t && - sp->cmd->device->lun == l); + sp->cmd->device->lun == l); break; } if (!match) continue; - spin_unlock_irqrestore(&pha->hardware_lock, flags); - status = qla2x00_eh_wait_on_command(ha, sp->cmd); - spin_lock_irqsave(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + status = qla2x00_eh_wait_on_command(sp->cmd); + spin_lock_irqsave(&ha->hardware_lock, flags); } - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); return status; } @@ -818,7 +910,7 @@ static int __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type, struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int)) { - scsi_qla_host_t *ha = shost_priv(cmd->device->host); + scsi_qla_host_t *vha = shost_priv(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; int err; @@ -827,31 +919,31 @@ __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type, if (!fcport) return FAILED; - qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET ISSUED.\n", - ha->host_no, cmd->device->id, cmd->device->lun, name); + qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n", + vha->host_no, cmd->device->id, cmd->device->lun, name); err = 0; - if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) + if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) goto eh_reset_failed; err = 1; - if (qla2x00_wait_for_loop_ready(ha) != QLA_SUCCESS) + if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS) goto eh_reset_failed; err = 2; if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS) goto eh_reset_failed; err = 3; - if (qla2x00_eh_wait_for_pending_commands(ha, cmd->device->id, - cmd->device->lun, type) != QLA_SUCCESS) + if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id, + cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS) goto eh_reset_failed; - qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n", - ha->host_no, cmd->device->id, cmd->device->lun, name); + qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n", + vha->host_no, cmd->device->id, cmd->device->lun, name); return SUCCESS; eh_reset_failed: - qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n", - ha->host_no, cmd->device->id, cmd->device->lun, name, + qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n" + , vha->host_no, cmd->device->id, cmd->device->lun, name, reset_errors[err]); return FAILED; } @@ -859,7 +951,8 @@ __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type, static int qla2xxx_eh_device_reset(struct scsi_cmnd *cmd) { - scsi_qla_host_t *ha = shost_priv(cmd->device->host); + scsi_qla_host_t *vha = shost_priv(cmd->device->host); + struct qla_hw_data *ha = vha->hw; return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd, ha->isp_ops->lun_reset); @@ -868,7 +961,8 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd) static int qla2xxx_eh_target_reset(struct scsi_cmnd *cmd) { - scsi_qla_host_t *ha = shost_priv(cmd->device->host); + scsi_qla_host_t *vha = shost_priv(cmd->device->host); + struct qla_hw_data *ha = vha->hw; return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd, ha->isp_ops->target_reset); @@ -892,12 +986,12 @@ qla2xxx_eh_target_reset(struct scsi_cmnd *cmd) static int qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) { - scsi_qla_host_t *ha = shost_priv(cmd->device->host); - scsi_qla_host_t *pha = to_qla_parent(ha); + scsi_qla_host_t *vha = shost_priv(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; int ret = FAILED; unsigned int id, lun; unsigned long serial; + srb_t *sp = (srb_t *) CMD_SP(cmd); qla2x00_block_error_handler(cmd); @@ -908,28 +1002,28 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd) if (!fcport) return ret; - qla_printk(KERN_INFO, ha, - "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun); + qla_printk(KERN_INFO, vha->hw, + "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun); - if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) { + if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) { DEBUG2(printk("%s failed:board disabled\n",__func__)); goto eh_bus_reset_done; } - if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) { - if (qla2x00_loop_reset(ha) == QLA_SUCCESS) + if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) { + if (qla2x00_loop_reset(vha) == QLA_SUCCESS) ret = SUCCESS; } if (ret == FAILED) goto eh_bus_reset_done; /* Flush outstanding commands. */ - if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) != + if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) != QLA_SUCCESS) ret = FAILED; eh_bus_reset_done: - qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__, + qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__, (ret == FAILED) ? "failed" : "succeded"); return ret; @@ -953,12 +1047,14 @@ eh_bus_reset_done: static int qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) { - scsi_qla_host_t *ha = shost_priv(cmd->device->host); + scsi_qla_host_t *vha = shost_priv(cmd->device->host); fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata; + struct qla_hw_data *ha = vha->hw; int ret = FAILED; unsigned int id, lun; unsigned long serial; - scsi_qla_host_t *pha = to_qla_parent(ha); + srb_t *sp = (srb_t *) CMD_SP(cmd); + scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); qla2x00_block_error_handler(cmd); @@ -970,9 +1066,9 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) return ret; qla_printk(KERN_INFO, ha, - "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun); + "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun); - if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) + if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) goto eh_host_reset_lock; /* @@ -983,26 +1079,28 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd) * devices as lost kicking of the port_down_timer * while dpc is stuck for the mailbox to complete. */ - qla2x00_wait_for_loop_ready(ha); - set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags); - if (qla2x00_abort_isp(pha)) { - clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags); - /* failed. schedule dpc to try */ - set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags); - - if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) + qla2x00_wait_for_loop_ready(vha); + if (vha != base_vha) { + if (qla2x00_vp_abort_isp(vha)) goto eh_host_reset_lock; + } else { + set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags); + if (qla2x00_abort_isp(base_vha)) { + clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags); + /* failed. schedule dpc to try */ + set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags); + + if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) + goto eh_host_reset_lock; + } + clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags); } - clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags); - /* Waiting for our command in done_queue to be returned to OS.*/ - if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) == - QLA_SUCCESS) + /* Waiting for command to be returned to OS.*/ + if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) == + QLA_SUCCESS) ret = SUCCESS; - if (ha->parent) - qla2x00_vp_abort_isp(ha); - eh_host_reset_lock: qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__, (ret == FAILED) ? "failed" : "succeded"); @@ -1021,35 +1119,36 @@ eh_host_reset_lock: * 0 = success */ int -qla2x00_loop_reset(scsi_qla_host_t *ha) +qla2x00_loop_reset(scsi_qla_host_t *vha) { int ret; struct fc_port *fcport; + struct qla_hw_data *ha = vha->hw; - if (ha->flags.enable_lip_full_login) { - ret = qla2x00_full_login_lip(ha); + if (ha->flags.enable_lip_full_login && !vha->vp_idx) { + ret = qla2x00_full_login_lip(vha); if (ret != QLA_SUCCESS) { - DEBUG2_3(printk("%s(%ld): bus_reset failed: " - "full_login_lip=%d.\n", __func__, ha->host_no, + DEBUG2_3(printk("%s(%ld): failed: " + "full_login_lip=%d.\n", __func__, vha->host_no, ret)); } - atomic_set(&ha->loop_state, LOOP_DOWN); - atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); - qla2x00_mark_all_devices_lost(ha, 0); - qla2x00_wait_for_loop_ready(ha); + atomic_set(&vha->loop_state, LOOP_DOWN); + atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); + qla2x00_mark_all_devices_lost(vha, 0); + qla2x00_wait_for_loop_ready(vha); } - if (ha->flags.enable_lip_reset) { - ret = qla2x00_lip_reset(ha); + if (ha->flags.enable_lip_reset && !vha->vp_idx) { + ret = qla2x00_lip_reset(vha); if (ret != QLA_SUCCESS) { - DEBUG2_3(printk("%s(%ld): bus_reset failed: " - "lip_reset=%d.\n", __func__, ha->host_no, ret)); - } - qla2x00_wait_for_loop_ready(ha); + DEBUG2_3(printk("%s(%ld): failed: " + "lip_reset=%d.\n", __func__, vha->host_no, ret)); + } else + qla2x00_wait_for_loop_ready(vha); } if (ha->flags.enable_target_reset) { - list_for_each_entry(fcport, &ha->fcports, list) { + list_for_each_entry(fcport, &vha->vp_fcports, list) { if (fcport->port_type != FCT_TARGET) continue; @@ -1057,31 +1156,37 @@ qla2x00_loop_reset(scsi_qla_host_t *ha) if (ret != QLA_SUCCESS) { DEBUG2_3(printk("%s(%ld): bus_reset failed: " "target_reset=%d d_id=%x.\n", __func__, - ha->host_no, ret, fcport->d_id.b24)); + vha->host_no, ret, fcport->d_id.b24)); } } } - /* Issue marker command only when we are going to start the I/O */ - ha->marker_needed = 1; + vha->marker_needed = 1; return QLA_SUCCESS; } void -qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res) +qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res) { - int cnt; + int que, cnt; unsigned long flags; srb_t *sp; + struct qla_hw_data *ha = vha->hw; + struct req_que *req; spin_lock_irqsave(&ha->hardware_lock, flags); - for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { - sp = ha->outstanding_cmds[cnt]; - if (sp) { - ha->outstanding_cmds[cnt] = NULL; - sp->cmd->result = res; - qla2x00_sp_compl(ha, sp); + for (que = 0; que < QLA_MAX_HOST_QUES; que++) { + req = ha->req_q_map[vha->req_ques[que]]; + if (!req) + continue; + for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { + sp = req->outstanding_cmds[cnt]; + if (sp && sp->vha == vha) { + req->outstanding_cmds[cnt] = NULL; + sp->cmd->result = res; + qla2x00_sp_compl(ha, sp); + } } } spin_unlock_irqrestore(&ha->hardware_lock, flags); @@ -1103,13 +1208,15 @@ qla2xxx_slave_alloc(struct scsi_device *sdev) static int qla2xxx_slave_configure(struct scsi_device *sdev) { - scsi_qla_host_t *ha = shost_priv(sdev->host); + scsi_qla_host_t *vha = shost_priv(sdev->host); + struct qla_hw_data *ha = vha->hw; struct fc_rport *rport = starget_to_rport(sdev->sdev_target); + struct req_que *req = ha->req_q_map[0]; if (sdev->tagged_supported) - scsi_activate_tcq(sdev, ha->max_q_depth); + scsi_activate_tcq(sdev, req->max_q_depth); else - scsi_deactivate_tcq(sdev, ha->max_q_depth); + scsi_deactivate_tcq(sdev, req->max_q_depth); rport->dev_loss_tmo = ha->port_down_retry_count; @@ -1152,8 +1259,9 @@ qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type) * supported addressing method. */ static void -qla2x00_config_dma_addressing(scsi_qla_host_t *ha) +qla2x00_config_dma_addressing(scsi_qla_host_t *vha) { + struct qla_hw_data *ha = vha->hw; /* Assume a 32bit DMA mask. */ ha->flags.enable_64bit_addressing = 0; @@ -1174,7 +1282,7 @@ qla2x00_config_dma_addressing(scsi_qla_host_t *ha) } static void -qla2x00_enable_intrs(scsi_qla_host_t *ha) +qla2x00_enable_intrs(struct qla_hw_data *ha) { unsigned long flags = 0; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; @@ -1189,7 +1297,7 @@ qla2x00_enable_intrs(scsi_qla_host_t *ha) } static void -qla2x00_disable_intrs(scsi_qla_host_t *ha) +qla2x00_disable_intrs(struct qla_hw_data *ha) { unsigned long flags = 0; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; @@ -1203,7 +1311,7 @@ qla2x00_disable_intrs(scsi_qla_host_t *ha) } static void -qla24xx_enable_intrs(scsi_qla_host_t *ha) +qla24xx_enable_intrs(struct qla_hw_data *ha) { unsigned long flags = 0; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; @@ -1216,7 +1324,7 @@ qla24xx_enable_intrs(scsi_qla_host_t *ha) } static void -qla24xx_disable_intrs(scsi_qla_host_t *ha) +qla24xx_disable_intrs(struct qla_hw_data *ha) { unsigned long flags = 0; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; @@ -1260,6 +1368,10 @@ static struct isp_operations qla2100_isp_ops = { .read_optrom = qla2x00_read_optrom_data, .write_optrom = qla2x00_write_optrom_data, .get_flash_version = qla2x00_get_flash_version, + .start_scsi = qla2x00_start_scsi, + .wrt_req_reg = NULL, + .wrt_rsp_reg = NULL, + .rd_req_reg = NULL, }; static struct isp_operations qla2300_isp_ops = { @@ -1294,6 +1406,10 @@ static struct isp_operations qla2300_isp_ops = { .read_optrom = qla2x00_read_optrom_data, .write_optrom = qla2x00_write_optrom_data, .get_flash_version = qla2x00_get_flash_version, + .start_scsi = qla2x00_start_scsi, + .wrt_req_reg = NULL, + .wrt_rsp_reg = NULL, + .rd_req_reg = NULL, }; static struct isp_operations qla24xx_isp_ops = { @@ -1328,6 +1444,10 @@ static struct isp_operations qla24xx_isp_ops = { .read_optrom = qla24xx_read_optrom_data, .write_optrom = qla24xx_write_optrom_data, .get_flash_version = qla24xx_get_flash_version, + .start_scsi = qla24xx_start_scsi, + .wrt_req_reg = qla24xx_wrt_req_reg, + .wrt_rsp_reg = qla24xx_wrt_rsp_reg, + .rd_req_reg = qla24xx_rd_req_reg, }; static struct isp_operations qla25xx_isp_ops = { @@ -1362,10 +1482,14 @@ static struct isp_operations qla25xx_isp_ops = { .read_optrom = qla25xx_read_optrom_data, .write_optrom = qla24xx_write_optrom_data, .get_flash_version = qla24xx_get_flash_version, + .start_scsi = qla24xx_start_scsi, + .wrt_req_reg = qla24xx_wrt_req_reg, + .wrt_rsp_reg = qla24xx_wrt_rsp_reg, + .rd_req_reg = qla24xx_rd_req_reg, }; static inline void -qla2x00_set_isp_flags(scsi_qla_host_t *ha) +qla2x00_set_isp_flags(struct qla_hw_data *ha) { ha->device_type = DT_EXTENDED_IDS; switch (ha->pdev->device) { @@ -1447,9 +1571,10 @@ qla2x00_set_isp_flags(scsi_qla_host_t *ha) } static int -qla2x00_iospace_config(scsi_qla_host_t *ha) +qla2x00_iospace_config(struct qla_hw_data *ha) { resource_size_t pio; + uint16_t msix; if (pci_request_selected_regions(ha->pdev, ha->bars, QLA2XXX_DRIVER_NAME)) { @@ -1502,6 +1627,30 @@ skip_pio: goto iospace_error_exit; } + /* Determine queue resources */ + ha->max_queues = 1; + if (ql2xmaxqueues <= 1 || !IS_QLA25XX(ha)) + goto mqiobase_exit; + ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3), + pci_resource_len(ha->pdev, 3)); + if (ha->mqiobase) { + /* Read MSIX vector size of the board */ + pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix); + ha->msix_count = msix; + /* Max queues are bounded by available msix vectors */ + /* queue 0 uses two msix vectors */ + if (ha->msix_count - 1 < ql2xmaxqueues) + ha->max_queues = ha->msix_count - 1; + else if (ql2xmaxqueues > QLA_MQ_SIZE) + ha->max_queues = QLA_MQ_SIZE; + else + ha->max_queues = ql2xmaxqueues; + qla_printk(KERN_INFO, ha, + "MSI-X vector count: %d\n", msix); + } + +mqiobase_exit: + ha->msix_count = ha->max_queues + 1; return (0); iospace_error_exit: @@ -1511,25 +1660,25 @@ iospace_error_exit: static void qla2xxx_scan_start(struct Scsi_Host *shost) { - scsi_qla_host_t *ha = shost_priv(shost); + scsi_qla_host_t *vha = shost_priv(shost); - set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); - set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); - set_bit(RSCN_UPDATE, &ha->dpc_flags); - set_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags); + set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); + set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); + set_bit(RSCN_UPDATE, &vha->dpc_flags); + set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags); } static int qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time) { - scsi_qla_host_t *ha = shost_priv(shost); + scsi_qla_host_t *vha = shost_priv(shost); - if (!ha->host) + if (!vha->host) return 1; - if (time > ha->loop_reset_delay * HZ) + if (time > vha->hw->loop_reset_delay * HZ) return 1; - return atomic_read(&ha->loop_state) == LOOP_READY; + return atomic_read(&vha->loop_state) == LOOP_READY; } /* @@ -1540,11 +1689,15 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) { int ret = -ENODEV; struct Scsi_Host *host; - scsi_qla_host_t *ha; + scsi_qla_host_t *base_vha = NULL; + struct qla_hw_data *ha; char pci_info[30]; char fw_str[30]; struct scsi_host_template *sht; - int bars, mem_only = 0; + int bars, max_id, mem_only = 0; + uint16_t req_length = 0, rsp_length = 0; + struct req_que *req = NULL; + struct rsp_que *rsp = NULL; bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO); sht = &qla2x00_driver_template; @@ -1570,33 +1723,24 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) /* This may fail but that's ok */ pci_enable_pcie_error_reporting(pdev); - host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t)); - if (host == NULL) { - printk(KERN_WARNING - "qla2xxx: Couldn't allocate host from scsi layer!\n"); - goto probe_disable_device; + ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL); + if (!ha) { + DEBUG(printk("Unable to allocate memory for ha\n")); + goto probe_out; } + ha->pdev = pdev; /* Clear our data area */ - ha = shost_priv(host); - memset(ha, 0, sizeof(scsi_qla_host_t)); - - ha->pdev = pdev; - ha->host = host; - ha->host_no = host->host_no; - sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no); - ha->parent = NULL; ha->bars = bars; ha->mem_only = mem_only; spin_lock_init(&ha->hardware_lock); /* Set ISP-type information. */ qla2x00_set_isp_flags(ha); - /* Configure PCI I/O space */ ret = qla2x00_iospace_config(ha); if (ret) - goto probe_failed; + goto probe_hw_failed; qla_printk(KERN_INFO, ha, "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq, @@ -1604,95 +1748,137 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) ha->prev_topology = 0; ha->init_cb_size = sizeof(init_cb_t); - ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx; ha->link_data_rate = PORT_SPEED_UNKNOWN; ha->optrom_size = OPTROM_SIZE_2300; - ha->max_q_depth = MAX_Q_DEPTH; - if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU) - ha->max_q_depth = ql2xmaxqdepth; - /* Assign ISP specific operations. */ + max_id = MAX_TARGETS_2200; if (IS_QLA2100(ha)) { - host->max_id = MAX_TARGETS_2100; + max_id = MAX_TARGETS_2100; ha->mbx_count = MAILBOX_REGISTER_COUNT_2100; - ha->request_q_length = REQUEST_ENTRY_CNT_2100; - ha->response_q_length = RESPONSE_ENTRY_CNT_2100; - ha->last_loop_id = SNS_LAST_LOOP_ID_2100; - host->sg_tablesize = 32; + req_length = REQUEST_ENTRY_CNT_2100; + rsp_length = RESPONSE_ENTRY_CNT_2100; + ha->max_loop_id = SNS_LAST_LOOP_ID_2100; ha->gid_list_info_size = 4; ha->isp_ops = &qla2100_isp_ops; } else if (IS_QLA2200(ha)) { - host->max_id = MAX_TARGETS_2200; ha->mbx_count = MAILBOX_REGISTER_COUNT; - ha->request_q_length = REQUEST_ENTRY_CNT_2200; - ha->response_q_length = RESPONSE_ENTRY_CNT_2100; - ha->last_loop_id = SNS_LAST_LOOP_ID_2100; + req_length = REQUEST_ENTRY_CNT_2200; + rsp_length = RESPONSE_ENTRY_CNT_2100; + ha->max_loop_id = SNS_LAST_LOOP_ID_2100; ha->gid_list_info_size = 4; ha->isp_ops = &qla2100_isp_ops; } else if (IS_QLA23XX(ha)) { - host->max_id = MAX_TARGETS_2200; ha->mbx_count = MAILBOX_REGISTER_COUNT; - ha->request_q_length = REQUEST_ENTRY_CNT_2200; - ha->response_q_length = RESPONSE_ENTRY_CNT_2300; - ha->last_loop_id = SNS_LAST_LOOP_ID_2300; + req_length = REQUEST_ENTRY_CNT_2200; + rsp_length = RESPONSE_ENTRY_CNT_2300; + ha->max_loop_id = SNS_LAST_LOOP_ID_2300; ha->gid_list_info_size = 6; if (IS_QLA2322(ha) || IS_QLA6322(ha)) ha->optrom_size = OPTROM_SIZE_2322; ha->isp_ops = &qla2300_isp_ops; } else if (IS_QLA24XX_TYPE(ha)) { - host->max_id = MAX_TARGETS_2200; ha->mbx_count = MAILBOX_REGISTER_COUNT; - ha->request_q_length = REQUEST_ENTRY_CNT_24XX; - ha->response_q_length = RESPONSE_ENTRY_CNT_2300; - ha->last_loop_id = SNS_LAST_LOOP_ID_2300; + req_length = REQUEST_ENTRY_CNT_24XX; + rsp_length = RESPONSE_ENTRY_CNT_2300; + ha->max_loop_id = SNS_LAST_LOOP_ID_2300; ha->init_cb_size = sizeof(struct mid_init_cb_24xx); - ha->mgmt_svr_loop_id = 10 + ha->vp_idx; ha->gid_list_info_size = 8; ha->optrom_size = OPTROM_SIZE_24XX; + ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX; ha->isp_ops = &qla24xx_isp_ops; } else if (IS_QLA25XX(ha)) { - host->max_id = MAX_TARGETS_2200; ha->mbx_count = MAILBOX_REGISTER_COUNT; - ha->request_q_length = REQUEST_ENTRY_CNT_24XX; - ha->response_q_length = RESPONSE_ENTRY_CNT_2300; - ha->last_loop_id = SNS_LAST_LOOP_ID_2300; + req_length = REQUEST_ENTRY_CNT_24XX; + rsp_length = RESPONSE_ENTRY_CNT_2300; + ha->max_loop_id = SNS_LAST_LOOP_ID_2300; ha->init_cb_size = sizeof(struct mid_init_cb_24xx); - ha->mgmt_svr_loop_id = 10 + ha->vp_idx; ha->gid_list_info_size = 8; ha->optrom_size = OPTROM_SIZE_25XX; + ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX; ha->isp_ops = &qla25xx_isp_ops; } - host->can_queue = ha->request_q_length + 128; mutex_init(&ha->vport_lock); init_completion(&ha->mbx_cmd_comp); complete(&ha->mbx_cmd_comp); init_completion(&ha->mbx_intr_comp); - INIT_LIST_HEAD(&ha->list); - INIT_LIST_HEAD(&ha->fcports); - INIT_LIST_HEAD(&ha->vp_list); - INIT_LIST_HEAD(&ha->work_list); - set_bit(0, (unsigned long *) ha->vp_idx_map); - qla2x00_config_dma_addressing(ha); - if (qla2x00_mem_alloc(ha)) { + ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp); + if (!ret) { qla_printk(KERN_WARNING, ha, "[ERROR] Failed to allocate memory for adapter\n"); + goto probe_hw_failed; + } + + req->max_q_depth = MAX_Q_DEPTH; + if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU) + req->max_q_depth = ql2xmaxqdepth; + + + base_vha = qla2x00_create_host(sht, ha); + if (!base_vha) { + qla_printk(KERN_WARNING, ha, + "[ERROR] Failed to allocate memory for scsi_host\n"); + ret = -ENOMEM; + goto probe_hw_failed; + } + + pci_set_drvdata(pdev, base_vha); + + qla2x00_config_dma_addressing(base_vha); + + host = base_vha->host; + base_vha->req_ques[0] = req->id; + host->can_queue = req->length + 128; + if (IS_QLA2XXX_MIDTYPE(ha)) + base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx; + else + base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER + + base_vha->vp_idx; + if (IS_QLA2100(ha)) + host->sg_tablesize = 32; + host->max_id = max_id; + host->this_id = 255; + host->cmd_per_lun = 3; + host->unique_id = host->host_no; + host->max_cmd_len = MAX_CMDSZ; + host->max_channel = MAX_BUSES - 1; + host->max_lun = MAX_LUNS; + host->transportt = qla2xxx_transport_template; + + /* Set up the irqs */ + ret = qla2x00_request_irqs(ha, rsp); + if (ret) + goto probe_failed; + + /* Alloc arrays of request and response ring ptrs */ + if (!qla2x00_alloc_queues(ha)) { + qla_printk(KERN_WARNING, ha, + "[ERROR] Failed to allocate memory for queue" + " pointers\n"); goto probe_failed; } + ha->rsp_q_map[0] = rsp; + ha->req_q_map[0] = req; - if (qla2x00_initialize_adapter(ha)) { + if (ha->mqenable) { + ha->isp_ops->wrt_req_reg = qla25xx_wrt_req_reg; + ha->isp_ops->wrt_rsp_reg = qla25xx_wrt_rsp_reg; + ha->isp_ops->rd_req_reg = qla25xx_rd_req_reg; + } + + if (qla2x00_initialize_adapter(base_vha)) { qla_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); DEBUG2(printk("scsi(%ld): Failed to initialize adapter - " "Adapter flags %x.\n", - ha->host_no, ha->device_flags)); + base_vha->host_no, base_vha->device_flags)); ret = -ENODEV; goto probe_failed; @@ -1702,7 +1888,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) * Startup the kernel thread for this host adapter */ ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha, - "%s_dpc", ha->host_str); + "%s_dpc", base_vha->host_str); if (IS_ERR(ha->dpc_thread)) { qla_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); @@ -1710,28 +1896,17 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) goto probe_failed; } - host->this_id = 255; - host->cmd_per_lun = 3; - host->unique_id = host->host_no; - host->max_cmd_len = MAX_CMDSZ; - host->max_channel = MAX_BUSES - 1; - host->max_lun = MAX_LUNS; - host->transportt = qla2xxx_transport_template; - - ret = qla2x00_request_irqs(ha); - if (ret) - goto probe_failed; + list_add_tail(&base_vha->list, &ha->vp_list); + base_vha->host->irq = ha->pdev->irq; /* Initialized the timer */ - qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL); + qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL); DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n", - ha->host_no, ha)); + base_vha->host_no, ha)); - pci_set_drvdata(pdev, ha); - - ha->flags.init_done = 1; - ha->flags.online = 1; + base_vha->flags.init_done = 1; + base_vha->flags.online = 1; ret = scsi_add_host(host, &pdev->dev); if (ret) @@ -1741,76 +1916,98 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) scsi_scan_host(host); - qla2x00_alloc_sysfs_attr(ha); + qla2x00_alloc_sysfs_attr(base_vha); - qla2x00_init_host_attr(ha); + qla2x00_init_host_attr(base_vha); - qla2x00_dfs_setup(ha); + qla2x00_dfs_setup(base_vha); qla_printk(KERN_INFO, ha, "\n" " QLogic Fibre Channel HBA Driver: %s\n" " QLogic %s - %s\n" " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str, ha->model_number, - ha->model_desc ? ha->model_desc: "", pdev->device, - ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev), - ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no, - ha->isp_ops->fw_version_str(ha, fw_str)); + ha->model_desc ? ha->model_desc : "", pdev->device, + ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev), + ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no, + ha->isp_ops->fw_version_str(base_vha, fw_str)); return 0; probe_failed: - qla2x00_free_device(ha); + qla2x00_free_que(ha, req, rsp); + qla2x00_free_device(base_vha); - scsi_host_put(host); + scsi_host_put(base_vha->host); -probe_disable_device: - pci_disable_device(pdev); +probe_hw_failed: + if (ha->iobase) + iounmap(ha->iobase); + + pci_release_selected_regions(ha->pdev, ha->bars); + kfree(ha); + ha = NULL; probe_out: + pci_disable_device(pdev); return ret; } static void qla2x00_remove_one(struct pci_dev *pdev) { - scsi_qla_host_t *ha, *vha, *temp; + scsi_qla_host_t *base_vha, *vha, *temp; + struct qla_hw_data *ha; + + base_vha = pci_get_drvdata(pdev); + ha = base_vha->hw; + + list_for_each_entry_safe(vha, temp, &ha->vp_list, list) { + if (vha && vha->fc_vport) + fc_vport_terminate(vha->fc_vport); + } - ha = pci_get_drvdata(pdev); + set_bit(UNLOADING, &base_vha->dpc_flags); - list_for_each_entry_safe(vha, temp, &ha->vp_list, vp_list) - fc_vport_terminate(vha->fc_vport); + qla2x00_dfs_remove(base_vha); - set_bit(UNLOADING, &ha->dpc_flags); + qla84xx_put_chip(base_vha); - qla2x00_dfs_remove(ha); + qla2x00_free_sysfs_attr(base_vha); - qla84xx_put_chip(ha); + fc_remove_host(base_vha->host); - qla2x00_free_sysfs_attr(ha); + scsi_remove_host(base_vha->host); - fc_remove_host(ha->host); + qla2x00_free_device(base_vha); - scsi_remove_host(ha->host); + scsi_host_put(base_vha->host); - qla2x00_free_device(ha); + if (ha->iobase) + iounmap(ha->iobase); - scsi_host_put(ha->host); + if (ha->mqiobase) + iounmap(ha->mqiobase); + + pci_release_selected_regions(ha->pdev, ha->bars); + kfree(ha); + ha = NULL; pci_disable_device(pdev); pci_set_drvdata(pdev, NULL); } static void -qla2x00_free_device(scsi_qla_host_t *ha) +qla2x00_free_device(scsi_qla_host_t *vha) { - qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16); + struct qla_hw_data *ha = vha->hw; + qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16); /* Disable timer */ - if (ha->timer_active) - qla2x00_stop_timer(ha); + if (vha->timer_active) + qla2x00_stop_timer(vha); - ha->flags.online = 0; + vha->flags.online = 0; /* Kill the kernel thread for this host */ if (ha->dpc_thread) { @@ -1825,45 +2022,41 @@ qla2x00_free_device(scsi_qla_host_t *ha) } if (ha->flags.fce_enabled) - qla2x00_disable_fce_trace(ha, NULL, NULL); + qla2x00_disable_fce_trace(vha, NULL, NULL); if (ha->eft) - qla2x00_disable_eft_trace(ha); + qla2x00_disable_eft_trace(vha); /* Stop currently executing firmware. */ - qla2x00_try_to_stop_firmware(ha); + qla2x00_try_to_stop_firmware(vha); /* turn-off interrupts on the card */ if (ha->interrupts_on) ha->isp_ops->disable_intrs(ha); - qla2x00_mem_free(ha); + qla2x00_free_irqs(vha); - qla2x00_free_irqs(ha); + qla2x00_mem_free(ha); - /* release io space registers */ - if (ha->iobase) - iounmap(ha->iobase); - pci_release_selected_regions(ha->pdev, ha->bars); + qla2x00_free_queues(ha); } static inline void -qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport, +qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport, int defer) { struct fc_rport *rport; - scsi_qla_host_t *pha = to_qla_parent(ha); if (!fcport->rport) return; rport = fcport->rport; if (defer) { - spin_lock_irq(ha->host->host_lock); + spin_lock_irq(vha->host->host_lock); fcport->drport = rport; - spin_unlock_irq(ha->host->host_lock); - set_bit(FCPORT_UPDATE_NEEDED, &pha->dpc_flags); - qla2xxx_wake_dpc(pha); + spin_unlock_irq(vha->host->host_lock); + set_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags); + qla2xxx_wake_dpc(vha); } else fc_remote_port_delete(rport); } @@ -1877,13 +2070,14 @@ qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport, * * Context: */ -void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport, +void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport, int do_login, int defer) { if (atomic_read(&fcport->state) == FCS_ONLINE && - ha->vp_idx == fcport->vp_idx) - qla2x00_schedule_rport_del(ha, fcport, defer); - + vha->vp_idx == fcport->vp_idx) { + atomic_set(&fcport->state, FCS_DEVICE_LOST); + qla2x00_schedule_rport_del(vha, fcport, defer); + } /* * We may need to retry the login, so don't change the state of the * port but do the retries. @@ -1895,13 +2089,13 @@ void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport, return; if (fcport->login_retry == 0) { - fcport->login_retry = ha->login_retry_count; - set_bit(RELOGIN_NEEDED, &ha->dpc_flags); + fcport->login_retry = vha->hw->login_retry_count; + set_bit(RELOGIN_NEEDED, &vha->dpc_flags); DEBUG(printk("scsi(%ld): Port login retry: " "%02x%02x%02x%02x%02x%02x%02x%02x, " "id = 0x%04x retry cnt=%d\n", - ha->host_no, + vha->host_no, fcport->port_name[0], fcport->port_name[1], fcport->port_name[2], @@ -1929,13 +2123,12 @@ void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport, * Context: */ void -qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer) +qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer) { fc_port_t *fcport; - scsi_qla_host_t *pha = to_qla_parent(ha); - list_for_each_entry(fcport, &pha->fcports, list) { - if (ha->vp_idx != fcport->vp_idx) + list_for_each_entry(fcport, &vha->vp_fcports, list) { + if (vha->vp_idx != fcport->vp_idx) continue; /* * No point in marking the device as lost, if the device is @@ -1943,9 +2136,11 @@ qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer) */ if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD) continue; - if (atomic_read(&fcport->state) == FCS_ONLINE) - qla2x00_schedule_rport_del(ha, fcport, defer); - atomic_set(&fcport->state, FCS_DEVICE_LOST); + if (atomic_read(&fcport->state) == FCS_ONLINE) { + atomic_set(&fcport->state, FCS_DEVICE_LOST); + qla2x00_schedule_rport_del(vha, fcport, defer); + } else + atomic_set(&fcport->state, FCS_DEVICE_LOST); } } @@ -1958,105 +2153,153 @@ qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer) * !0 = failure. */ static int -qla2x00_mem_alloc(scsi_qla_host_t *ha) +qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len, + struct req_que **req, struct rsp_que **rsp) { char name[16]; - ha->request_ring = dma_alloc_coherent(&ha->pdev->dev, - (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma, - GFP_KERNEL); - if (!ha->request_ring) - goto fail; - - ha->response_ring = dma_alloc_coherent(&ha->pdev->dev, - (ha->response_q_length + 1) * sizeof(response_t), - &ha->response_dma, GFP_KERNEL); - if (!ha->response_ring) - goto fail_free_request_ring; - - ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE, - &ha->gid_list_dma, GFP_KERNEL); - if (!ha->gid_list) - goto fail_free_response_ring; + ha->init_cb_size = sizeof(init_cb_t); + if (IS_QLA2XXX_MIDTYPE(ha)) + ha->init_cb_size = sizeof(struct mid_init_cb_24xx); ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size, - &ha->init_cb_dma, GFP_KERNEL); + &ha->init_cb_dma, GFP_KERNEL); if (!ha->init_cb) - goto fail_free_gid_list; + goto fail; - snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME, - ha->host_no); - ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev, - DMA_POOL_SIZE, 8, 0); - if (!ha->s_dma_pool) + ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE, + &ha->gid_list_dma, GFP_KERNEL); + if (!ha->gid_list) goto fail_free_init_cb; ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep); if (!ha->srb_mempool) - goto fail_free_s_dma_pool; + goto fail_free_gid_list; /* Get memory for cached NVRAM */ ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL); if (!ha->nvram) goto fail_free_srb_mempool; + snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME, + ha->pdev->device); + ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev, + DMA_POOL_SIZE, 8, 0); + if (!ha->s_dma_pool) + goto fail_free_nvram; + /* Allocate memory for SNS commands */ if (IS_QLA2100(ha) || IS_QLA2200(ha)) { - /* Get consistent memory allocated for SNS commands */ + /* Get consistent memory allocated for SNS commands */ ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev, - sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL); + sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL); if (!ha->sns_cmd) - goto fail_free_nvram; + goto fail_dma_pool; } else { - /* Get consistent memory allocated for MS IOCB */ + /* Get consistent memory allocated for MS IOCB */ ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, - &ha->ms_iocb_dma); + &ha->ms_iocb_dma); if (!ha->ms_iocb) - goto fail_free_nvram; - - /* Get consistent memory allocated for CT SNS commands */ + goto fail_dma_pool; + /* Get consistent memory allocated for CT SNS commands */ ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev, - sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL); + sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL); if (!ha->ct_sns) goto fail_free_ms_iocb; } - return 0; + /* Allocate memory for request ring */ + *req = kzalloc(sizeof(struct req_que), GFP_KERNEL); + if (!*req) { + DEBUG(printk("Unable to allocate memory for req\n")); + goto fail_req; + } + (*req)->length = req_len; + (*req)->ring = dma_alloc_coherent(&ha->pdev->dev, + ((*req)->length + 1) * sizeof(request_t), + &(*req)->dma, GFP_KERNEL); + if (!(*req)->ring) { + DEBUG(printk("Unable to allocate memory for req_ring\n")); + goto fail_req_ring; + } + /* Allocate memory for response ring */ + *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL); + if (!*rsp) { + qla_printk(KERN_WARNING, ha, + "Unable to allocate memory for rsp\n"); + goto fail_rsp; + } + (*rsp)->hw = ha; + (*rsp)->length = rsp_len; + (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev, + ((*rsp)->length + 1) * sizeof(response_t), + &(*rsp)->dma, GFP_KERNEL); + if (!(*rsp)->ring) { + qla_printk(KERN_WARNING, ha, + "Unable to allocate memory for rsp_ring\n"); + goto fail_rsp_ring; + } + (*req)->rsp = *rsp; + (*rsp)->req = *req; + /* Allocate memory for NVRAM data for vports */ + if (ha->nvram_npiv_size) { + ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) * + ha->nvram_npiv_size, GFP_KERNEL); + if (!ha->npiv_info) { + qla_printk(KERN_WARNING, ha, + "Unable to allocate memory for npiv info\n"); + goto fail_npiv_info; + } + } else + ha->npiv_info = NULL; + INIT_LIST_HEAD(&ha->vp_list); + return 1; + +fail_npiv_info: + dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) * + sizeof(response_t), (*rsp)->ring, (*rsp)->dma); + (*rsp)->ring = NULL; + (*rsp)->dma = 0; +fail_rsp_ring: + kfree(*rsp); +fail_rsp: + dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) * + sizeof(request_t), (*req)->ring, (*req)->dma); + (*req)->ring = NULL; + (*req)->dma = 0; +fail_req_ring: + kfree(*req); +fail_req: + dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt), + ha->ct_sns, ha->ct_sns_dma); + ha->ct_sns = NULL; + ha->ct_sns_dma = 0; fail_free_ms_iocb: dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma); ha->ms_iocb = NULL; ha->ms_iocb_dma = 0; +fail_dma_pool: + dma_pool_destroy(ha->s_dma_pool); + ha->s_dma_pool = NULL; fail_free_nvram: kfree(ha->nvram); ha->nvram = NULL; fail_free_srb_mempool: mempool_destroy(ha->srb_mempool); ha->srb_mempool = NULL; -fail_free_s_dma_pool: - dma_pool_destroy(ha->s_dma_pool); - ha->s_dma_pool = NULL; -fail_free_init_cb: - dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb, - ha->init_cb_dma); - ha->init_cb = NULL; - ha->init_cb_dma = 0; fail_free_gid_list: dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list, - ha->gid_list_dma); + ha->gid_list_dma); ha->gid_list = NULL; ha->gid_list_dma = 0; -fail_free_response_ring: - dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) * - sizeof(response_t), ha->response_ring, ha->response_dma); - ha->response_ring = NULL; - ha->response_dma = 0; -fail_free_request_ring: - dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) * - sizeof(request_t), ha->request_ring, ha->request_dma); - ha->request_ring = NULL; - ha->request_dma = 0; +fail_free_init_cb: + dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb, + ha->init_cb_dma); + ha->init_cb = NULL; + ha->init_cb_dma = 0; fail: + DEBUG(printk("%s: Memory allocation failure\n", __func__)); return -ENOMEM; } @@ -2068,32 +2311,29 @@ fail: * ha = adapter block pointer. */ static void -qla2x00_mem_free(scsi_qla_host_t *ha) +qla2x00_mem_free(struct qla_hw_data *ha) { - struct list_head *fcpl, *fcptemp; - fc_port_t *fcport; - if (ha->srb_mempool) mempool_destroy(ha->srb_mempool); if (ha->fce) dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce, - ha->fce_dma); + ha->fce_dma); if (ha->fw_dump) { if (ha->eft) dma_free_coherent(&ha->pdev->dev, - ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma); + ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma); vfree(ha->fw_dump); } if (ha->sns_cmd) dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt), - ha->sns_cmd, ha->sns_cmd_dma); + ha->sns_cmd, ha->sns_cmd_dma); if (ha->ct_sns) dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt), - ha->ct_sns, ha->ct_sns_dma); + ha->ct_sns, ha->ct_sns_dma); if (ha->sfp_data) dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma); @@ -2104,23 +2344,18 @@ qla2x00_mem_free(scsi_qla_host_t *ha) if (ha->s_dma_pool) dma_pool_destroy(ha->s_dma_pool); - if (ha->init_cb) - dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, - ha->init_cb, ha->init_cb_dma); if (ha->gid_list) dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list, - ha->gid_list_dma); + ha->gid_list_dma); - if (ha->response_ring) - dma_free_coherent(&ha->pdev->dev, - (ha->response_q_length + 1) * sizeof(response_t), - ha->response_ring, ha->response_dma); - if (ha->request_ring) - dma_free_coherent(&ha->pdev->dev, - (ha->request_q_length + 1) * sizeof(request_t), - ha->request_ring, ha->request_dma); + if (ha->init_cb) + dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, + ha->init_cb, ha->init_cb_dma); + vfree(ha->optrom_buffer); + kfree(ha->nvram); + kfree(ha->npiv_info); ha->srb_mempool = NULL; ha->eft = NULL; @@ -2139,30 +2374,45 @@ qla2x00_mem_free(scsi_qla_host_t *ha) ha->gid_list = NULL; ha->gid_list_dma = 0; - ha->response_ring = NULL; - ha->response_dma = 0; - ha->request_ring = NULL; - ha->request_dma = 0; + ha->fw_dump = NULL; + ha->fw_dumped = 0; + ha->fw_dump_reading = 0; +} - list_for_each_safe(fcpl, fcptemp, &ha->fcports) { - fcport = list_entry(fcpl, fc_port_t, list); +struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht, + struct qla_hw_data *ha) +{ + struct Scsi_Host *host; + struct scsi_qla_host *vha = NULL; - /* fc ports */ - list_del_init(&fcport->list); - kfree(fcport); + host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t)); + if (host == NULL) { + printk(KERN_WARNING + "qla2xxx: Couldn't allocate host from scsi layer!\n"); + goto fail; } - INIT_LIST_HEAD(&ha->fcports); - ha->fw_dump = NULL; - ha->fw_dumped = 0; - ha->fw_dump_reading = 0; + /* Clear our data area */ + vha = shost_priv(host); + memset(vha, 0, sizeof(scsi_qla_host_t)); - vfree(ha->optrom_buffer); - kfree(ha->nvram); + vha->host = host; + vha->host_no = host->host_no; + vha->hw = ha; + + INIT_LIST_HEAD(&vha->vp_fcports); + INIT_LIST_HEAD(&vha->work_list); + INIT_LIST_HEAD(&vha->list); + + sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no); + return vha; + +fail: + return vha; } static struct qla_work_evt * -qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type, +qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type, int locked) { struct qla_work_evt *e; @@ -2179,42 +2429,42 @@ qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type, } static int -qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked) +qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e, int locked) { unsigned long uninitialized_var(flags); - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; if (!locked) - spin_lock_irqsave(&pha->hardware_lock, flags); - list_add_tail(&e->list, &ha->work_list); - qla2xxx_wake_dpc(ha); + spin_lock_irqsave(&ha->hardware_lock, flags); + list_add_tail(&e->list, &vha->work_list); + qla2xxx_wake_dpc(vha); if (!locked) - spin_unlock_irqrestore(&pha->hardware_lock, flags); + spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_SUCCESS; } int -qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code, +qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code, u32 data) { struct qla_work_evt *e; - e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1); + e = qla2x00_alloc_work(vha, QLA_EVT_AEN, 1); if (!e) return QLA_FUNCTION_FAILED; e->u.aen.code = code; e->u.aen.data = data; - return qla2x00_post_work(ha, e, 1); + return qla2x00_post_work(vha, e, 1); } int -qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1, +qla2x00_post_hwe_work(struct scsi_qla_host *vha, uint16_t code, uint16_t d1, uint16_t d2, uint16_t d3) { struct qla_work_evt *e; - e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1); + e = qla2x00_alloc_work(vha, QLA_EVT_HWE_LOG, 1); if (!e) return QLA_FUNCTION_FAILED; @@ -2222,36 +2472,95 @@ qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1, e->u.hwe.d1 = d1; e->u.hwe.d2 = d2; e->u.hwe.d3 = d3; - return qla2x00_post_work(ha, e, 1); + return qla2x00_post_work(vha, e, 1); } static void -qla2x00_do_work(struct scsi_qla_host *ha) +qla2x00_do_work(struct scsi_qla_host *vha) { struct qla_work_evt *e; - scsi_qla_host_t *pha = to_qla_parent(ha); + struct qla_hw_data *ha = vha->hw; - spin_lock_irq(&pha->hardware_lock); - while (!list_empty(&ha->work_list)) { - e = list_entry(ha->work_list.next, struct qla_work_evt, list); + spin_lock_irq(&ha->hardware_lock); + while (!list_empty(&vha->work_list)) { + e = list_entry(vha->work_list.next, struct qla_work_evt, list); list_del_init(&e->list); - spin_unlock_irq(&pha->hardware_lock); + spin_unlock_irq(&ha->hardware_lock); switch (e->type) { case QLA_EVT_AEN: - fc_host_post_event(ha->host, fc_get_event_number(), + fc_host_post_event(vha->host, fc_get_event_number(), e->u.aen.code, e->u.aen.data); break; case QLA_EVT_HWE_LOG: - qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1, + qla2xxx_hw_event_log(vha, e->u.hwe.code, e->u.hwe.d1, e->u.hwe.d2, e->u.hwe.d3); break; } if (e->flags & QLA_EVT_FLAG_FREE) kfree(e); - spin_lock_irq(&pha->hardware_lock); + spin_lock_irq(&ha->hardware_lock); + } + spin_unlock_irq(&ha->hardware_lock); +} +/* Relogins all the fcports of a vport + * Context: dpc thread + */ +void qla2x00_relogin(struct scsi_qla_host *vha) +{ + fc_port_t *fcport; + uint8_t status; + uint16_t next_loopid = 0; + struct qla_hw_data *ha = vha->hw; + + list_for_each_entry(fcport, &vha->vp_fcports, list) { + /* + * If the port is not ONLINE then try to login + * to it if we haven't run out of retries. + */ + if (atomic_read(&fcport->state) != + FCS_ONLINE && fcport->login_retry) { + + if (fcport->flags & FCF_FABRIC_DEVICE) { + if (fcport->flags & FCF_TAPE_PRESENT) + ha->isp_ops->fabric_logout(vha, + fcport->loop_id, + fcport->d_id.b.domain, + fcport->d_id.b.area, + fcport->d_id.b.al_pa); + + status = qla2x00_fabric_login(vha, fcport, + &next_loopid); + } else + status = qla2x00_local_device_login(vha, + fcport); + + fcport->login_retry--; + if (status == QLA_SUCCESS) { + fcport->old_loop_id = fcport->loop_id; + + DEBUG(printk("scsi(%ld): port login OK: logged " + "in ID 0x%x\n", vha->host_no, fcport->loop_id)); + + qla2x00_update_fcport(vha, fcport); + + } else if (status == 1) { + set_bit(RELOGIN_NEEDED, &vha->dpc_flags); + /* retry the login again */ + DEBUG(printk("scsi(%ld): Retrying" + " %d login again loop_id 0x%x\n", + vha->host_no, fcport->login_retry, + fcport->loop_id)); + } else { + fcport->login_retry = 0; + } + + if (fcport->login_retry == 0 && status != QLA_SUCCESS) + fcport->loop_id = FC_NO_LOOP_ID; + } + if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) + break; } - spin_unlock_irq(&pha->hardware_lock); } /************************************************************************** @@ -2271,15 +2580,11 @@ static int qla2x00_do_dpc(void *data) { int rval; - scsi_qla_host_t *ha; - fc_port_t *fcport; - uint8_t status; - uint16_t next_loopid; - struct scsi_qla_host *vha; - int i; + scsi_qla_host_t *base_vha; + struct qla_hw_data *ha; - - ha = (scsi_qla_host_t *)data; + ha = (struct qla_hw_data *)data; + base_vha = pci_get_drvdata(ha->pdev); set_user_nice(current, -20); @@ -2293,10 +2598,10 @@ qla2x00_do_dpc(void *data) DEBUG3(printk("qla2x00: DPC handler waking up\n")); /* Initialization not yet finished. Don't do anything yet. */ - if (!ha->flags.init_done) + if (!base_vha->flags.init_done) continue; - DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no)); + DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no)); ha->dpc_active = 1; @@ -2305,149 +2610,98 @@ qla2x00_do_dpc(void *data) continue; } - qla2x00_do_work(ha); + qla2x00_do_work(base_vha); - if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) { + if (test_and_clear_bit(ISP_ABORT_NEEDED, + &base_vha->dpc_flags)) { DEBUG(printk("scsi(%ld): dpc: sched " "qla2x00_abort_isp ha = %p\n", - ha->host_no, ha)); + base_vha->host_no, ha)); if (!(test_and_set_bit(ABORT_ISP_ACTIVE, - &ha->dpc_flags))) { + &base_vha->dpc_flags))) { - if (qla2x00_abort_isp(ha)) { + if (qla2x00_abort_isp(base_vha)) { /* failed. retry later */ set_bit(ISP_ABORT_NEEDED, - &ha->dpc_flags); - } - clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); - } - - for_each_mapped_vp_idx(ha, i) { - list_for_each_entry(vha, &ha->vp_list, - vp_list) { - if (i == vha->vp_idx) { - set_bit(ISP_ABORT_NEEDED, - &vha->dpc_flags); - break; - } + &base_vha->dpc_flags); } + clear_bit(ABORT_ISP_ACTIVE, + &base_vha->dpc_flags); } DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n", - ha->host_no)); + base_vha->host_no)); } - if (test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags)) { - qla2x00_update_fcports(ha); - clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags); + if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) { + qla2x00_update_fcports(base_vha); + clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags); } - if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) && - (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) { + if (test_and_clear_bit(RESET_MARKER_NEEDED, + &base_vha->dpc_flags) && + (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) { DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n", - ha->host_no)); + base_vha->host_no)); - qla2x00_rst_aen(ha); - clear_bit(RESET_ACTIVE, &ha->dpc_flags); + qla2x00_rst_aen(base_vha); + clear_bit(RESET_ACTIVE, &base_vha->dpc_flags); } /* Retry each device up to login retry count */ - if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) && - !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) && - atomic_read(&ha->loop_state) != LOOP_DOWN) { + if ((test_and_clear_bit(RELOGIN_NEEDED, + &base_vha->dpc_flags)) && + !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) && + atomic_read(&base_vha->loop_state) != LOOP_DOWN) { DEBUG(printk("scsi(%ld): qla2x00_port_login()\n", - ha->host_no)); - - next_loopid = 0; - list_for_each_entry(fcport, &ha->fcports, list) { - /* - * If the port is not ONLINE then try to login - * to it if we haven't run out of retries. - */ - if (atomic_read(&fcport->state) != FCS_ONLINE && - fcport->login_retry) { - - if (fcport->flags & FCF_FABRIC_DEVICE) { - if (fcport->flags & - FCF_TAPE_PRESENT) - ha->isp_ops->fabric_logout( - ha, fcport->loop_id, - fcport->d_id.b.domain, - fcport->d_id.b.area, - fcport->d_id.b.al_pa); - status = qla2x00_fabric_login( - ha, fcport, &next_loopid); - } else - status = - qla2x00_local_device_login( - ha, fcport); - - fcport->login_retry--; - if (status == QLA_SUCCESS) { - fcport->old_loop_id = fcport->loop_id; - - DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n", - ha->host_no, fcport->loop_id)); - - qla2x00_update_fcport(ha, - fcport); - } else if (status == 1) { - set_bit(RELOGIN_NEEDED, &ha->dpc_flags); - /* retry the login again */ - DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n", - ha->host_no, - fcport->login_retry, fcport->loop_id)); - } else { - fcport->login_retry = 0; - } - if (fcport->login_retry == 0 && status != QLA_SUCCESS) - fcport->loop_id = FC_NO_LOOP_ID; - } - if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) - break; - } + base_vha->host_no)); + qla2x00_relogin(base_vha); + DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n", - ha->host_no)); + base_vha->host_no)); } - if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { + if (test_and_clear_bit(LOOP_RESYNC_NEEDED, + &base_vha->dpc_flags)) { DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n", - ha->host_no)); + base_vha->host_no)); if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, - &ha->dpc_flags))) { + &base_vha->dpc_flags))) { - rval = qla2x00_loop_resync(ha); + rval = qla2x00_loop_resync(base_vha); - clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags); + clear_bit(LOOP_RESYNC_ACTIVE, + &base_vha->dpc_flags); } DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n", - ha->host_no)); + base_vha->host_no)); } - if (test_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags) && - atomic_read(&ha->loop_state) == LOOP_READY) { - clear_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags); - qla2xxx_flash_npiv_conf(ha); + if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) && + atomic_read(&base_vha->loop_state) == LOOP_READY) { + clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags); + qla2xxx_flash_npiv_conf(base_vha); } if (!ha->interrupts_on) ha->isp_ops->enable_intrs(ha); - if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags)) - ha->isp_ops->beacon_blink(ha); + if (test_and_clear_bit(BEACON_BLINK_NEEDED, + &base_vha->dpc_flags)) + ha->isp_ops->beacon_blink(base_vha); - qla2x00_do_dpc_all_vps(ha); + qla2x00_do_dpc_all_vps(base_vha); ha->dpc_active = 0; } /* End of while(1) */ - DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no)); + DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no)); /* * Make sure that nobody tries to wake us up again. @@ -2458,11 +2712,12 @@ qla2x00_do_dpc(void *data) } void -qla2xxx_wake_dpc(scsi_qla_host_t *ha) +qla2xxx_wake_dpc(struct scsi_qla_host *vha) { + struct qla_hw_data *ha = vha->hw; struct task_struct *t = ha->dpc_thread; - if (!test_bit(UNLOADING, &ha->dpc_flags) && t) + if (!test_bit(UNLOADING, &vha->dpc_flags) && t) wake_up_process(t); } @@ -2474,26 +2729,26 @@ qla2xxx_wake_dpc(scsi_qla_host_t *ha) * ha = adapter block pointer. */ static void -qla2x00_rst_aen(scsi_qla_host_t *ha) +qla2x00_rst_aen(scsi_qla_host_t *vha) { - if (ha->flags.online && !ha->flags.reset_active && - !atomic_read(&ha->loop_down_timer) && - !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { + if (vha->flags.online && !vha->flags.reset_active && + !atomic_read(&vha->loop_down_timer) && + !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) { do { - clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); + clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); /* * Issue marker command only when we are going to start * the I/O. */ - ha->marker_needed = 1; - } while (!atomic_read(&ha->loop_down_timer) && - (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags))); + vha->marker_needed = 1; + } while (!atomic_read(&vha->loop_down_timer) && + (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags))); } } static void -qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp) +qla2x00_sp_free_dma(srb_t *sp) { struct scsi_cmnd *cmd = sp->cmd; @@ -2505,11 +2760,11 @@ qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp) } void -qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp) +qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp) { struct scsi_cmnd *cmd = sp->cmd; - qla2x00_sp_free_dma(ha, sp); + qla2x00_sp_free_dma(sp); mempool_free(sp, ha->srb_mempool); @@ -2525,7 +2780,7 @@ qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp) * Context: Interrupt ***************************************************************************/ void -qla2x00_timer(scsi_qla_host_t *ha) +qla2x00_timer(scsi_qla_host_t *vha) { unsigned long cpu_flags = 0; fc_port_t *fcport; @@ -2533,8 +2788,8 @@ qla2x00_timer(scsi_qla_host_t *ha) int index; srb_t *sp; int t; - scsi_qla_host_t *pha = to_qla_parent(ha); - + struct qla_hw_data *ha = vha->hw; + struct req_que *req; /* * Ports - Port down timer. * @@ -2543,7 +2798,7 @@ qla2x00_timer(scsi_qla_host_t *ha) * the port it marked DEAD. */ t = 0; - list_for_each_entry(fcport, &ha->fcports, list) { + list_for_each_entry(fcport, &vha->vp_fcports, list) { if (fcport->port_type != FCT_TARGET) continue; @@ -2557,7 +2812,7 @@ qla2x00_timer(scsi_qla_host_t *ha) DEBUG(printk("scsi(%ld): fcport-%d - port retry count: " "%d remaining\n", - ha->host_no, + vha->host_no, t, atomic_read(&fcport->port_down_timer))); } t++; @@ -2565,30 +2820,32 @@ qla2x00_timer(scsi_qla_host_t *ha) /* Loop down handler. */ - if (atomic_read(&ha->loop_down_timer) > 0 && - !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) { + if (atomic_read(&vha->loop_down_timer) > 0 && + !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) + && vha->flags.online) { - if (atomic_read(&ha->loop_down_timer) == - ha->loop_down_abort_time) { + if (atomic_read(&vha->loop_down_timer) == + vha->loop_down_abort_time) { DEBUG(printk("scsi(%ld): Loop Down - aborting the " "queues before time expire\n", - ha->host_no)); + vha->host_no)); - if (!IS_QLA2100(ha) && ha->link_down_timeout) - atomic_set(&ha->loop_state, LOOP_DEAD); + if (!IS_QLA2100(ha) && vha->link_down_timeout) + atomic_set(&vha->loop_state, LOOP_DEAD); /* Schedule an ISP abort to return any tape commands. */ /* NPIV - scan physical port only */ - if (!ha->parent) { + if (!vha->vp_idx) { spin_lock_irqsave(&ha->hardware_lock, cpu_flags); + req = ha->req_q_map[0]; for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { fc_port_t *sfcp; - sp = ha->outstanding_cmds[index]; + sp = req->outstanding_cmds[index]; if (!sp) continue; sfcp = sp->fcport; @@ -2596,63 +2853,63 @@ qla2x00_timer(scsi_qla_host_t *ha) continue; set_bit(ISP_ABORT_NEEDED, - &ha->dpc_flags); + &vha->dpc_flags); break; } spin_unlock_irqrestore(&ha->hardware_lock, - cpu_flags); + cpu_flags); } - set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags); + set_bit(ABORT_QUEUES_NEEDED, &vha->dpc_flags); start_dpc++; } /* if the loop has been down for 4 minutes, reinit adapter */ - if (atomic_dec_and_test(&ha->loop_down_timer) != 0) { + if (atomic_dec_and_test(&vha->loop_down_timer) != 0) { DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - " "restarting queues.\n", - ha->host_no)); + vha->host_no)); - set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags); + set_bit(RESTART_QUEUES_NEEDED, &vha->dpc_flags); start_dpc++; - if (!(ha->device_flags & DFLG_NO_CABLE) && - !ha->parent) { + if (!(vha->device_flags & DFLG_NO_CABLE) && + !vha->vp_idx) { DEBUG(printk("scsi(%ld): Loop down - " "aborting ISP.\n", - ha->host_no)); + vha->host_no)); qla_printk(KERN_WARNING, ha, "Loop down - aborting ISP.\n"); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); } } DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n", - ha->host_no, - atomic_read(&ha->loop_down_timer))); + vha->host_no, + atomic_read(&vha->loop_down_timer))); } /* Check if beacon LED needs to be blinked */ if (ha->beacon_blink_led == 1) { - set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags); + set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags); start_dpc++; } /* Process any deferred work. */ - if (!list_empty(&ha->work_list)) + if (!list_empty(&vha->work_list)) start_dpc++; /* Schedule the DPC routine if needed */ - if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) || - test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) || - test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) || + if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) || + test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) || + test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) || start_dpc || - test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) || - test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) || - test_bit(VP_DPC_NEEDED, &ha->dpc_flags) || - test_bit(RELOGIN_NEEDED, &ha->dpc_flags))) - qla2xxx_wake_dpc(pha); + test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) || + test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) || + test_bit(VP_DPC_NEEDED, &vha->dpc_flags) || + test_bit(RELOGIN_NEEDED, &vha->dpc_flags))) + qla2xxx_wake_dpc(vha); - qla2x00_restart_timer(ha, WATCH_INTERVAL); + qla2x00_restart_timer(vha, WATCH_INTERVAL); } /* Firmware interface routines. */ @@ -2684,8 +2941,9 @@ static struct fw_blob qla_fw_blobs[FW_BLOBS] = { }; struct fw_blob * -qla2x00_request_firmware(scsi_qla_host_t *ha) +qla2x00_request_firmware(scsi_qla_host_t *vha) { + struct qla_hw_data *ha = vha->hw; struct fw_blob *blob; blob = NULL; @@ -2709,7 +2967,7 @@ qla2x00_request_firmware(scsi_qla_host_t *ha) if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) { DEBUG2(printk("scsi(%ld): Failed to load firmware image " - "(%s).\n", ha->host_no, blob->name)); + "(%s).\n", vha->host_no, blob->name)); blob->fw = NULL; blob = NULL; goto out; @@ -2754,7 +3012,8 @@ qla2xxx_pci_mmio_enabled(struct pci_dev *pdev) int risc_paused = 0; uint32_t stat; unsigned long flags; - scsi_qla_host_t *ha = pci_get_drvdata(pdev); + scsi_qla_host_t *base_vha = pci_get_drvdata(pdev); + struct qla_hw_data *ha = base_vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; @@ -2777,7 +3036,7 @@ qla2xxx_pci_mmio_enabled(struct pci_dev *pdev) if (risc_paused) { qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, " "Dumping firmware!\n"); - ha->isp_ops->fw_dump(ha, 0); + ha->isp_ops->fw_dump(base_vha, 0); return PCI_ERS_RESULT_NEED_RESET; } else @@ -2788,7 +3047,8 @@ static pci_ers_result_t qla2xxx_pci_slot_reset(struct pci_dev *pdev) { pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; - scsi_qla_host_t *ha = pci_get_drvdata(pdev); + scsi_qla_host_t *base_vha = pci_get_drvdata(pdev); + struct qla_hw_data *ha = base_vha->hw; int rc; if (ha->mem_only) @@ -2804,13 +3064,13 @@ qla2xxx_pci_slot_reset(struct pci_dev *pdev) } pci_set_master(pdev); - if (ha->isp_ops->pci_config(ha)) + if (ha->isp_ops->pci_config(base_vha)) return ret; - set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); - if (qla2x00_abort_isp(ha)== QLA_SUCCESS) + set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags); + if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS) ret = PCI_ERS_RESULT_RECOVERED; - clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags); + clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags); return ret; } @@ -2818,10 +3078,11 @@ qla2xxx_pci_slot_reset(struct pci_dev *pdev) static void qla2xxx_pci_resume(struct pci_dev *pdev) { - scsi_qla_host_t *ha = pci_get_drvdata(pdev); + scsi_qla_host_t *base_vha = pci_get_drvdata(pdev); + struct qla_hw_data *ha = base_vha->hw; int ret; - ret = qla2x00_wait_for_hba_online(ha); + ret = qla2x00_wait_for_hba_online(base_vha); if (ret != QLA_SUCCESS) { qla_printk(KERN_ERR, ha, "the device failed to resume I/O " diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c index e4af678..c538ee1 100644 --- a/drivers/scsi/qla2xxx/qla_sup.c +++ b/drivers/scsi/qla2xxx/qla_sup.c @@ -10,10 +10,6 @@ #include <linux/vmalloc.h> #include <asm/uaccess.h> -static uint16_t qla2x00_nvram_request(scsi_qla_host_t *, uint32_t); -static void qla2x00_nv_deselect(scsi_qla_host_t *); -static void qla2x00_nv_write(scsi_qla_host_t *, uint16_t); - /* * NVRAM support routines */ @@ -23,7 +19,7 @@ static void qla2x00_nv_write(scsi_qla_host_t *, uint16_t); * @ha: HA context */ static void -qla2x00_lock_nvram_access(scsi_qla_host_t *ha) +qla2x00_lock_nvram_access(struct qla_hw_data *ha) { uint16_t data; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; @@ -56,7 +52,7 @@ qla2x00_lock_nvram_access(scsi_qla_host_t *ha) * @ha: HA context */ static void -qla2x00_unlock_nvram_access(scsi_qla_host_t *ha) +qla2x00_unlock_nvram_access(struct qla_hw_data *ha) { struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; @@ -67,6 +63,84 @@ qla2x00_unlock_nvram_access(scsi_qla_host_t *ha) } /** + * qla2x00_nv_write() - Prepare for NVRAM read/write operation. + * @ha: HA context + * @data: Serial interface selector + */ +static void +qla2x00_nv_write(struct qla_hw_data *ha, uint16_t data) +{ + struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; + + WRT_REG_WORD(®->nvram, data | NVR_SELECT | NVR_WRT_ENABLE); + RD_REG_WORD(®->nvram); /* PCI Posting. */ + NVRAM_DELAY(); + WRT_REG_WORD(®->nvram, data | NVR_SELECT | NVR_CLOCK | + NVR_WRT_ENABLE); + RD_REG_WORD(®->nvram); /* PCI Posting. */ + NVRAM_DELAY(); + WRT_REG_WORD(®->nvram, data | NVR_SELECT | NVR_WRT_ENABLE); + RD_REG_WORD(®->nvram); /* PCI Posting. */ + NVRAM_DELAY(); +} + +/** + * qla2x00_nvram_request() - Sends read command to NVRAM and gets data from + * NVRAM. + * @ha: HA context + * @nv_cmd: NVRAM command + * + * Bit definitions for NVRAM command: + * + * Bit 26 = start bit + * Bit 25, 24 = opcode + * Bit 23-16 = address + * Bit 15-0 = write data + * + * Returns the word read from nvram @addr. + */ +static uint16_t +qla2x00_nvram_request(struct qla_hw_data *ha, uint32_t nv_cmd) +{ + uint8_t cnt; + struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; + uint16_t data = 0; + uint16_t reg_data; + + /* Send command to NVRAM. */ + nv_cmd <<= 5; + for (cnt = 0; cnt < 11; cnt++) { + if (nv_cmd & BIT_31) + qla2x00_nv_write(ha, NVR_DATA_OUT); + else + qla2x00_nv_write(ha, 0); + nv_cmd <<= 1; + } + + /* Read data from NVRAM. */ + for (cnt = 0; cnt < 16; cnt++) { + WRT_REG_WORD(®->nvram, NVR_SELECT | NVR_CLOCK); + RD_REG_WORD(®->nvram); /* PCI Posting. */ + NVRAM_DELAY(); + data <<= 1; + reg_data = RD_REG_WORD(®->nvram); + if (reg_data & NVR_DATA_IN) + data |= BIT_0; + WRT_REG_WORD(®->nvram, NVR_SELECT); + RD_REG_WORD(®->nvram); /* PCI Posting. */ + NVRAM_DELAY(); + } + + /* Deselect chip. */ + WRT_REG_WORD(®->nvram, NVR_DESELECT); + RD_REG_WORD(®->nvram); /* PCI Posting. */ + NVRAM_DELAY(); + + return data; +} + + +/** * qla2x00_get_nvram_word() - Calculates word position in NVRAM and calls the * request routine to get the word from NVRAM. * @ha: HA context @@ -75,7 +149,7 @@ qla2x00_unlock_nvram_access(scsi_qla_host_t *ha) * Returns the word read from nvram @addr. */ static uint16_t -qla2x00_get_nvram_word(scsi_qla_host_t *ha, uint32_t addr) +qla2x00_get_nvram_word(struct qla_hw_data *ha, uint32_t addr) { uint16_t data; uint32_t nv_cmd; @@ -88,13 +162,27 @@ qla2x00_get_nvram_word(scsi_qla_host_t *ha, uint32_t addr) } /** + * qla2x00_nv_deselect() - Deselect NVRAM operations. + * @ha: HA context + */ +static void +qla2x00_nv_deselect(struct qla_hw_data *ha) +{ + struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; + + WRT_REG_WORD(®->nvram, NVR_DESELECT); + RD_REG_WORD(®->nvram); /* PCI Posting. */ + NVRAM_DELAY(); +} + +/** * qla2x00_write_nvram_word() - Write NVRAM data. * @ha: HA context * @addr: Address in NVRAM to write * @data: word to program */ static void -qla2x00_write_nvram_word(scsi_qla_host_t *ha, uint32_t addr, uint16_t data) +qla2x00_write_nvram_word(struct qla_hw_data *ha, uint32_t addr, uint16_t data) { int count; uint16_t word; @@ -132,7 +220,7 @@ qla2x00_write_nvram_word(scsi_qla_host_t *ha, uint32_t addr, uint16_t data) do { if (!--wait_cnt) { DEBUG9_10(printk("%s(%ld): NVRAM didn't go ready...\n", - __func__, ha->host_no)); + __func__, vha->host_no)); break; } NVRAM_DELAY(); @@ -150,8 +238,8 @@ qla2x00_write_nvram_word(scsi_qla_host_t *ha, uint32_t addr, uint16_t data) } static int -qla2x00_write_nvram_word_tmo(scsi_qla_host_t *ha, uint32_t addr, uint16_t data, - uint32_t tmo) +qla2x00_write_nvram_word_tmo(struct qla_hw_data *ha, uint32_t addr, + uint16_t data, uint32_t tmo) { int ret, count; uint16_t word; @@ -209,102 +297,11 @@ qla2x00_write_nvram_word_tmo(scsi_qla_host_t *ha, uint32_t addr, uint16_t data, } /** - * qla2x00_nvram_request() - Sends read command to NVRAM and gets data from - * NVRAM. - * @ha: HA context - * @nv_cmd: NVRAM command - * - * Bit definitions for NVRAM command: - * - * Bit 26 = start bit - * Bit 25, 24 = opcode - * Bit 23-16 = address - * Bit 15-0 = write data - * - * Returns the word read from nvram @addr. - */ -static uint16_t -qla2x00_nvram_request(scsi_qla_host_t *ha, uint32_t nv_cmd) -{ - uint8_t cnt; - struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; - uint16_t data = 0; - uint16_t reg_data; - - /* Send command to NVRAM. */ - nv_cmd <<= 5; - for (cnt = 0; cnt < 11; cnt++) { - if (nv_cmd & BIT_31) - qla2x00_nv_write(ha, NVR_DATA_OUT); - else - qla2x00_nv_write(ha, 0); - nv_cmd <<= 1; - } - - /* Read data from NVRAM. */ - for (cnt = 0; cnt < 16; cnt++) { - WRT_REG_WORD(®->nvram, NVR_SELECT | NVR_CLOCK); - RD_REG_WORD(®->nvram); /* PCI Posting. */ - NVRAM_DELAY(); - data <<= 1; - reg_data = RD_REG_WORD(®->nvram); - if (reg_data & NVR_DATA_IN) - data |= BIT_0; - WRT_REG_WORD(®->nvram, NVR_SELECT); - RD_REG_WORD(®->nvram); /* PCI Posting. */ - NVRAM_DELAY(); - } - - /* Deselect chip. */ - WRT_REG_WORD(®->nvram, NVR_DESELECT); - RD_REG_WORD(®->nvram); /* PCI Posting. */ - NVRAM_DELAY(); - - return (data); -} - -/** - * qla2x00_nv_write() - Clean NVRAM operations. - * @ha: HA context - */ -static void -qla2x00_nv_deselect(scsi_qla_host_t *ha) -{ - struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; - - WRT_REG_WORD(®->nvram, NVR_DESELECT); - RD_REG_WORD(®->nvram); /* PCI Posting. */ - NVRAM_DELAY(); -} - -/** - * qla2x00_nv_write() - Prepare for NVRAM read/write operation. - * @ha: HA context - * @data: Serial interface selector - */ -static void -qla2x00_nv_write(scsi_qla_host_t *ha, uint16_t data) -{ - struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; - - WRT_REG_WORD(®->nvram, data | NVR_SELECT | NVR_WRT_ENABLE); - RD_REG_WORD(®->nvram); /* PCI Posting. */ - NVRAM_DELAY(); - WRT_REG_WORD(®->nvram, data | NVR_SELECT| NVR_CLOCK | - NVR_WRT_ENABLE); - RD_REG_WORD(®->nvram); /* PCI Posting. */ - NVRAM_DELAY(); - WRT_REG_WORD(®->nvram, data | NVR_SELECT | NVR_WRT_ENABLE); - RD_REG_WORD(®->nvram); /* PCI Posting. */ - NVRAM_DELAY(); -} - -/** * qla2x00_clear_nvram_protection() - * @ha: HA context */ static int -qla2x00_clear_nvram_protection(scsi_qla_host_t *ha) +qla2x00_clear_nvram_protection(struct qla_hw_data *ha) { int ret, stat; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; @@ -352,9 +349,8 @@ qla2x00_clear_nvram_protection(scsi_qla_host_t *ha) wait_cnt = NVR_WAIT_CNT; do { if (!--wait_cnt) { - DEBUG9_10(printk("%s(%ld): NVRAM didn't go " - "ready...\n", __func__, - ha->host_no)); + DEBUG9_10(qla_printk( + "NVRAM didn't go ready...\n")); break; } NVRAM_DELAY(); @@ -370,7 +366,7 @@ qla2x00_clear_nvram_protection(scsi_qla_host_t *ha) } static void -qla2x00_set_nvram_protection(scsi_qla_host_t *ha, int stat) +qla2x00_set_nvram_protection(struct qla_hw_data *ha, int stat) { struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; uint32_t word, wait_cnt; @@ -412,8 +408,7 @@ qla2x00_set_nvram_protection(scsi_qla_host_t *ha, int stat) wait_cnt = NVR_WAIT_CNT; do { if (!--wait_cnt) { - DEBUG9_10(printk("%s(%ld): NVRAM didn't go ready...\n", - __func__, ha->host_no)); + DEBUG9_10(qla_printk("NVRAM didn't go ready...\n")); break; } NVRAM_DELAY(); @@ -454,7 +449,7 @@ nvram_data_to_access_addr(uint32_t naddr) } static uint32_t -qla24xx_read_flash_dword(scsi_qla_host_t *ha, uint32_t addr) +qla24xx_read_flash_dword(struct qla_hw_data *ha, uint32_t addr) { int rval; uint32_t cnt, data; @@ -482,21 +477,20 @@ qla24xx_read_flash_dword(scsi_qla_host_t *ha, uint32_t addr) } uint32_t * -qla24xx_read_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, +qla24xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr, uint32_t dwords) { uint32_t i; - /* Dword reads to flash. */ for (i = 0; i < dwords; i++, faddr++) - dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha, + dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(vha->hw, flash_data_to_access_addr(faddr))); return dwptr; } static int -qla24xx_write_flash_dword(scsi_qla_host_t *ha, uint32_t addr, uint32_t data) +qla24xx_write_flash_dword(struct qla_hw_data *ha, uint32_t addr, uint32_t data) { int rval; uint32_t cnt; @@ -519,7 +513,7 @@ qla24xx_write_flash_dword(scsi_qla_host_t *ha, uint32_t addr, uint32_t data) } static void -qla24xx_get_flash_manufacturer(scsi_qla_host_t *ha, uint8_t *man_id, +qla24xx_get_flash_manufacturer(struct qla_hw_data *ha, uint8_t *man_id, uint8_t *flash_id) { uint32_t ids; @@ -544,7 +538,7 @@ qla24xx_get_flash_manufacturer(scsi_qla_host_t *ha, uint8_t *man_id, } static int -qla2xxx_find_flt_start(scsi_qla_host_t *ha, uint32_t *start) +qla2xxx_find_flt_start(scsi_qla_host_t *vha, uint32_t *start) { const char *loc, *locations[] = { "DEF", "PCI" }; uint32_t pcihdr, pcids; @@ -552,6 +546,8 @@ qla2xxx_find_flt_start(scsi_qla_host_t *ha, uint32_t *start) uint8_t *buf, *bcode, last_image; uint16_t cnt, chksum, *wptr; struct qla_flt_location *fltl; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; /* * FLT-location structure resides after the last PCI region. @@ -563,20 +559,20 @@ qla2xxx_find_flt_start(scsi_qla_host_t *ha, uint32_t *start) FA_FLASH_LAYOUT_ADDR; /* Begin with first PCI expansion ROM header. */ - buf = (uint8_t *)ha->request_ring; - dcode = (uint32_t *)ha->request_ring; + buf = (uint8_t *)req->ring; + dcode = (uint32_t *)req->ring; pcihdr = 0; last_image = 1; do { /* Verify PCI expansion ROM header. */ - qla24xx_read_flash_data(ha, dcode, pcihdr >> 2, 0x20); + qla24xx_read_flash_data(vha, dcode, pcihdr >> 2, 0x20); bcode = buf + (pcihdr % 4); if (bcode[0x0] != 0x55 || bcode[0x1] != 0xaa) goto end; /* Locate PCI data structure. */ pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]); - qla24xx_read_flash_data(ha, dcode, pcids >> 2, 0x20); + qla24xx_read_flash_data(vha, dcode, pcids >> 2, 0x20); bcode = buf + (pcihdr % 4); /* Validate signature of PCI data structure. */ @@ -591,14 +587,14 @@ qla2xxx_find_flt_start(scsi_qla_host_t *ha, uint32_t *start) } while (!last_image); /* Now verify FLT-location structure. */ - fltl = (struct qla_flt_location *)ha->request_ring; - qla24xx_read_flash_data(ha, dcode, pcihdr >> 2, + fltl = (struct qla_flt_location *)req->ring; + qla24xx_read_flash_data(vha, dcode, pcihdr >> 2, sizeof(struct qla_flt_location) >> 2); if (fltl->sig[0] != 'Q' || fltl->sig[1] != 'F' || fltl->sig[2] != 'L' || fltl->sig[3] != 'T') goto end; - wptr = (uint16_t *)ha->request_ring; + wptr = (uint16_t *)req->ring; cnt = sizeof(struct qla_flt_location) >> 1; for (chksum = 0; cnt; cnt--) chksum += le16_to_cpu(*wptr++); @@ -619,7 +615,7 @@ end: } static void -qla2xxx_get_flt_info(scsi_qla_host_t *ha, uint32_t flt_addr) +qla2xxx_get_flt_info(scsi_qla_host_t *vha, uint32_t flt_addr) { const char *loc, *locations[] = { "DEF", "FLT" }; uint16_t *wptr; @@ -627,12 +623,14 @@ qla2xxx_get_flt_info(scsi_qla_host_t *ha, uint32_t flt_addr) uint32_t start; struct qla_flt_header *flt; struct qla_flt_region *region; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; ha->flt_region_flt = flt_addr; - wptr = (uint16_t *)ha->request_ring; - flt = (struct qla_flt_header *)ha->request_ring; + wptr = (uint16_t *)req->ring; + flt = (struct qla_flt_header *)req->ring; region = (struct qla_flt_region *)&flt[1]; - ha->isp_ops->read_optrom(ha, (uint8_t *)ha->request_ring, + ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring, flt_addr << 2, OPTROM_BURST_SIZE); if (*wptr == __constant_cpu_to_le16(0xffff)) goto no_flash_data; @@ -720,7 +718,7 @@ done: } static void -qla2xxx_get_fdt_info(scsi_qla_host_t *ha) +qla2xxx_get_fdt_info(scsi_qla_host_t *vha) { #define FLASH_BLK_SIZE_4K 0x1000 #define FLASH_BLK_SIZE_32K 0x8000 @@ -731,10 +729,12 @@ qla2xxx_get_fdt_info(scsi_qla_host_t *ha) struct qla_fdt_layout *fdt; uint8_t man_id, flash_id; uint16_t mid, fid; + struct qla_hw_data *ha = vha->hw; + struct req_que *req = ha->req_q_map[0]; - wptr = (uint16_t *)ha->request_ring; - fdt = (struct qla_fdt_layout *)ha->request_ring; - ha->isp_ops->read_optrom(ha, (uint8_t *)ha->request_ring, + wptr = (uint16_t *)req->ring; + fdt = (struct qla_fdt_layout *)req->ring; + ha->isp_ops->read_optrom(vha, (uint8_t *)req->ring, ha->flt_region_fdt << 2, OPTROM_BURST_SIZE); if (*wptr == __constant_cpu_to_le16(0xffff)) goto no_flash_data; @@ -807,38 +807,41 @@ done: } int -qla2xxx_get_flash_info(scsi_qla_host_t *ha) +qla2xxx_get_flash_info(scsi_qla_host_t *vha) { int ret; uint32_t flt_addr; + struct qla_hw_data *ha = vha->hw; if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha)) return QLA_SUCCESS; - ret = qla2xxx_find_flt_start(ha, &flt_addr); + ret = qla2xxx_find_flt_start(vha, &flt_addr); if (ret != QLA_SUCCESS) return ret; - qla2xxx_get_flt_info(ha, flt_addr); - qla2xxx_get_fdt_info(ha); + qla2xxx_get_flt_info(vha, flt_addr); + qla2xxx_get_fdt_info(vha); return QLA_SUCCESS; } void -qla2xxx_flash_npiv_conf(scsi_qla_host_t *ha) +qla2xxx_flash_npiv_conf(scsi_qla_host_t *vha) { #define NPIV_CONFIG_SIZE (16*1024) void *data; uint16_t *wptr; uint16_t cnt, chksum; + int i; struct qla_npiv_header hdr; struct qla_npiv_entry *entry; + struct qla_hw_data *ha = vha->hw; if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha)) return; - ha->isp_ops->read_optrom(ha, (uint8_t *)&hdr, + ha->isp_ops->read_optrom(vha, (uint8_t *)&hdr, ha->flt_region_npiv_conf << 2, sizeof(struct qla_npiv_header)); if (hdr.version == __constant_cpu_to_le16(0xffff)) return; @@ -857,7 +860,7 @@ qla2xxx_flash_npiv_conf(scsi_qla_host_t *ha) return; } - ha->isp_ops->read_optrom(ha, (uint8_t *)data, + ha->isp_ops->read_optrom(vha, (uint8_t *)data, ha->flt_region_npiv_conf << 2, NPIV_CONFIG_SIZE); cnt = (sizeof(struct qla_npiv_header) + le16_to_cpu(hdr.entries) * @@ -874,7 +877,7 @@ qla2xxx_flash_npiv_conf(scsi_qla_host_t *ha) entry = data + sizeof(struct qla_npiv_header); cnt = le16_to_cpu(hdr.entries); - for ( ; cnt; cnt--, entry++) { + for (i = 0; cnt; cnt--, entry++, i++) { uint16_t flags; struct fc_vport_identifiers vid; struct fc_vport *vport; @@ -892,25 +895,29 @@ qla2xxx_flash_npiv_conf(scsi_qla_host_t *ha) vid.port_name = wwn_to_u64(entry->port_name); vid.node_name = wwn_to_u64(entry->node_name); + memcpy(&ha->npiv_info[i], entry, sizeof(struct qla_npiv_entry)); + DEBUG2(qla_printk(KERN_DEBUG, ha, "NPIV[%02x]: wwpn=%llx " - "wwnn=%llx vf_id=0x%x qos=0x%x.\n", cnt, - (unsigned long long)vid.port_name, - (unsigned long long)vid.node_name, - le16_to_cpu(entry->vf_id), le16_to_cpu(entry->qos))); - - vport = fc_vport_create(ha->host, 0, &vid); - if (!vport) - qla_printk(KERN_INFO, ha, "NPIV-Config: Failed to " - "create vport [%02x]: wwpn=%llx wwnn=%llx.\n", cnt, - (unsigned long long)vid.port_name, - (unsigned long long)vid.node_name); + "wwnn=%llx vf_id=0x%x Q_qos=0x%x F_qos=0x%x.\n", cnt, + vid.port_name, vid.node_name, le16_to_cpu(entry->vf_id), + entry->q_qos, entry->f_qos)); + + if (i < QLA_PRECONFIG_VPORTS) { + vport = fc_vport_create(vha->host, 0, &vid); + if (!vport) + qla_printk(KERN_INFO, ha, + "NPIV-Config: Failed to create vport [%02x]: " + "wwpn=%llx wwnn=%llx.\n", cnt, + vid.port_name, vid.node_name); + } } done: kfree(data); + ha->npiv_info = NULL; } static void -qla24xx_unprotect_flash(scsi_qla_host_t *ha) +qla24xx_unprotect_flash(struct qla_hw_data *ha) { struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; @@ -929,7 +936,7 @@ qla24xx_unprotect_flash(scsi_qla_host_t *ha) } static void -qla24xx_protect_flash(scsi_qla_host_t *ha) +qla24xx_protect_flash(struct qla_hw_data *ha) { uint32_t cnt; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; @@ -955,7 +962,7 @@ skip_wrt_protect: } static int -qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, +qla24xx_write_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr, uint32_t dwords) { int ret; @@ -965,6 +972,7 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, dma_addr_t optrom_dma; void *optrom = NULL; uint32_t *s, *d; + struct qla_hw_data *ha = vha->hw; ret = QLA_SUCCESS; @@ -1002,9 +1010,8 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, (fdata & 0xff00) |((fdata << 16) & 0xff0000) | ((fdata >> 16) & 0xff)); if (ret != QLA_SUCCESS) { - DEBUG9(printk("%s(%ld) Unable to flash " - "sector: address=%x.\n", __func__, - ha->host_no, faddr)); + DEBUG9(qla_printk("Unable to flash sector: " + "address=%x.\n", faddr)); break; } } @@ -1016,7 +1023,7 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, miter < OPTROM_BURST_DWORDS; miter++, s++, d++) *s = cpu_to_le32(*d); - ret = qla2x00_load_ram(ha, optrom_dma, + ret = qla2x00_load_ram(vha, optrom_dma, flash_data_to_access_addr(faddr), OPTROM_BURST_DWORDS); if (ret != QLA_SUCCESS) { @@ -1044,7 +1051,7 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, if (ret != QLA_SUCCESS) { DEBUG9(printk("%s(%ld) Unable to program flash " "address=%x data=%x.\n", __func__, - ha->host_no, faddr, *dwptr)); + vha->host_no, faddr, *dwptr)); break; } @@ -1067,11 +1074,12 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, } uint8_t * -qla2x00_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, +qla2x00_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr, uint32_t bytes) { uint32_t i; uint16_t *wptr; + struct qla_hw_data *ha = vha->hw; /* Word reads to NVRAM via registers. */ wptr = (uint16_t *)buf; @@ -1085,7 +1093,7 @@ qla2x00_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, } uint8_t * -qla24xx_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, +qla24xx_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr, uint32_t bytes) { uint32_t i; @@ -1094,20 +1102,21 @@ qla24xx_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, /* Dword reads to flash. */ dwptr = (uint32_t *)buf; for (i = 0; i < bytes >> 2; i++, naddr++) - dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(ha, + dwptr[i] = cpu_to_le32(qla24xx_read_flash_dword(vha->hw, nvram_data_to_access_addr(naddr))); return buf; } int -qla2x00_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, +qla2x00_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr, uint32_t bytes) { int ret, stat; uint32_t i; uint16_t *wptr; unsigned long flags; + struct qla_hw_data *ha = vha->hw; ret = QLA_SUCCESS; @@ -1134,12 +1143,13 @@ qla2x00_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, } int -qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, +qla24xx_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr, uint32_t bytes) { int ret; uint32_t i; uint32_t *dwptr; + struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; ret = QLA_SUCCESS; @@ -1162,9 +1172,8 @@ qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, nvram_data_to_access_addr(naddr), cpu_to_le32(*dwptr)); if (ret != QLA_SUCCESS) { - DEBUG9(printk("%s(%ld) Unable to program " - "nvram address=%x data=%x.\n", __func__, - ha->host_no, naddr, *dwptr)); + DEBUG9(qla_printk("Unable to program nvram address=%x " + "data=%x.\n", naddr, *dwptr)); break; } } @@ -1182,11 +1191,12 @@ qla24xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, } uint8_t * -qla25xx_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, +qla25xx_read_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr, uint32_t bytes) { uint32_t i; uint32_t *dwptr; + struct qla_hw_data *ha = vha->hw; /* Dword reads to flash. */ dwptr = (uint32_t *)buf; @@ -1199,19 +1209,20 @@ qla25xx_read_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, } int -qla25xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, +qla25xx_write_nvram_data(scsi_qla_host_t *vha, uint8_t *buf, uint32_t naddr, uint32_t bytes) { + struct qla_hw_data *ha = vha->hw; #define RMW_BUFFER_SIZE (64 * 1024) uint8_t *dbuf; dbuf = vmalloc(RMW_BUFFER_SIZE); if (!dbuf) return QLA_MEMORY_ALLOC_FAILED; - ha->isp_ops->read_optrom(ha, dbuf, ha->flt_region_vpd_nvram << 2, + ha->isp_ops->read_optrom(vha, dbuf, ha->flt_region_vpd_nvram << 2, RMW_BUFFER_SIZE); memcpy(dbuf + (naddr << 2), buf, bytes); - ha->isp_ops->write_optrom(ha, dbuf, ha->flt_region_vpd_nvram << 2, + ha->isp_ops->write_optrom(vha, dbuf, ha->flt_region_vpd_nvram << 2, RMW_BUFFER_SIZE); vfree(dbuf); @@ -1219,7 +1230,7 @@ qla25xx_write_nvram_data(scsi_qla_host_t *ha, uint8_t *buf, uint32_t naddr, } static inline void -qla2x00_flip_colors(scsi_qla_host_t *ha, uint16_t *pflags) +qla2x00_flip_colors(struct qla_hw_data *ha, uint16_t *pflags) { if (IS_QLA2322(ha)) { /* Flip all colors. */ @@ -1249,12 +1260,13 @@ qla2x00_flip_colors(scsi_qla_host_t *ha, uint16_t *pflags) #define PIO_REG(h, r) ((h)->pio_address + offsetof(struct device_reg_2xxx, r)) void -qla2x00_beacon_blink(struct scsi_qla_host *ha) +qla2x00_beacon_blink(struct scsi_qla_host *vha) { uint16_t gpio_enable; uint16_t gpio_data; uint16_t led_color = 0; unsigned long flags; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; spin_lock_irqsave(&ha->hardware_lock, flags); @@ -1298,17 +1310,18 @@ qla2x00_beacon_blink(struct scsi_qla_host *ha) } int -qla2x00_beacon_on(struct scsi_qla_host *ha) +qla2x00_beacon_on(struct scsi_qla_host *vha) { uint16_t gpio_enable; uint16_t gpio_data; unsigned long flags; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING; ha->fw_options[1] |= FO1_DISABLE_GPIO6_7; - if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS) { + if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS) { qla_printk(KERN_WARNING, ha, "Unable to update fw options (beacon on).\n"); return QLA_FUNCTION_FAILED; @@ -1354,9 +1367,10 @@ qla2x00_beacon_on(struct scsi_qla_host *ha) } int -qla2x00_beacon_off(struct scsi_qla_host *ha) +qla2x00_beacon_off(struct scsi_qla_host *vha) { int rval = QLA_SUCCESS; + struct qla_hw_data *ha = vha->hw; ha->beacon_blink_led = 0; @@ -1366,12 +1380,12 @@ qla2x00_beacon_off(struct scsi_qla_host *ha) else ha->beacon_color_state = QLA_LED_GRN_ON; - ha->isp_ops->beacon_blink(ha); /* This turns green LED off */ + ha->isp_ops->beacon_blink(vha); /* This turns green LED off */ ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING; ha->fw_options[1] &= ~FO1_DISABLE_GPIO6_7; - rval = qla2x00_set_fw_options(ha, ha->fw_options); + rval = qla2x00_set_fw_options(vha, ha->fw_options); if (rval != QLA_SUCCESS) qla_printk(KERN_WARNING, ha, "Unable to update fw options (beacon off).\n"); @@ -1380,7 +1394,7 @@ qla2x00_beacon_off(struct scsi_qla_host *ha) static inline void -qla24xx_flip_colors(scsi_qla_host_t *ha, uint16_t *pflags) +qla24xx_flip_colors(struct qla_hw_data *ha, uint16_t *pflags) { /* Flip all colors. */ if (ha->beacon_color_state == QLA_LED_ALL_ON) { @@ -1395,11 +1409,12 @@ qla24xx_flip_colors(scsi_qla_host_t *ha, uint16_t *pflags) } void -qla24xx_beacon_blink(struct scsi_qla_host *ha) +qla24xx_beacon_blink(struct scsi_qla_host *vha) { uint16_t led_color = 0; uint32_t gpio_data; unsigned long flags; + struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; /* Save the Original GPIOD. */ @@ -1428,20 +1443,21 @@ qla24xx_beacon_blink(struct scsi_qla_host *ha) } int -qla24xx_beacon_on(struct scsi_qla_host *ha) +qla24xx_beacon_on(struct scsi_qla_host *vha) { uint32_t gpio_data; unsigned long flags; + struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; if (ha->beacon_blink_led == 0) { /* Enable firmware for update */ ha->fw_options[1] |= ADD_FO1_DISABLE_GPIO_LED_CTRL; - if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS) + if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS) return QLA_FUNCTION_FAILED; - if (qla2x00_get_fw_options(ha, ha->fw_options) != + if (qla2x00_get_fw_options(vha, ha->fw_options) != QLA_SUCCESS) { qla_printk(KERN_WARNING, ha, "Unable to update fw options (beacon on).\n"); @@ -1469,16 +1485,17 @@ qla24xx_beacon_on(struct scsi_qla_host *ha) } int -qla24xx_beacon_off(struct scsi_qla_host *ha) +qla24xx_beacon_off(struct scsi_qla_host *vha) { uint32_t gpio_data; unsigned long flags; + struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; ha->beacon_blink_led = 0; ha->beacon_color_state = QLA_LED_ALL_ON; - ha->isp_ops->beacon_blink(ha); /* Will flip to all off. */ + ha->isp_ops->beacon_blink(vha); /* Will flip to all off. */ /* Give control back to firmware. */ spin_lock_irqsave(&ha->hardware_lock, flags); @@ -1492,13 +1509,13 @@ qla24xx_beacon_off(struct scsi_qla_host *ha) ha->fw_options[1] &= ~ADD_FO1_DISABLE_GPIO_LED_CTRL; - if (qla2x00_set_fw_options(ha, ha->fw_options) != QLA_SUCCESS) { + if (qla2x00_set_fw_options(vha, ha->fw_options) != QLA_SUCCESS) { qla_printk(KERN_WARNING, ha, "Unable to update fw options (beacon off).\n"); return QLA_FUNCTION_FAILED; } - if (qla2x00_get_fw_options(ha, ha->fw_options) != QLA_SUCCESS) { + if (qla2x00_get_fw_options(vha, ha->fw_options) != QLA_SUCCESS) { qla_printk(KERN_WARNING, ha, "Unable to get fw options (beacon off).\n"); return QLA_FUNCTION_FAILED; @@ -1517,7 +1534,7 @@ qla24xx_beacon_off(struct scsi_qla_host *ha) * @ha: HA context */ static void -qla2x00_flash_enable(scsi_qla_host_t *ha) +qla2x00_flash_enable(struct qla_hw_data *ha) { uint16_t data; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; @@ -1533,7 +1550,7 @@ qla2x00_flash_enable(scsi_qla_host_t *ha) * @ha: HA context */ static void -qla2x00_flash_disable(scsi_qla_host_t *ha) +qla2x00_flash_disable(struct qla_hw_data *ha) { uint16_t data; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; @@ -1554,7 +1571,7 @@ qla2x00_flash_disable(scsi_qla_host_t *ha) * Returns the byte read from flash @addr. */ static uint8_t -qla2x00_read_flash_byte(scsi_qla_host_t *ha, uint32_t addr) +qla2x00_read_flash_byte(struct qla_hw_data *ha, uint32_t addr) { uint16_t data; uint16_t bank_select; @@ -1615,7 +1632,7 @@ qla2x00_read_flash_byte(scsi_qla_host_t *ha, uint32_t addr) * @data: Data to write */ static void -qla2x00_write_flash_byte(scsi_qla_host_t *ha, uint32_t addr, uint8_t data) +qla2x00_write_flash_byte(struct qla_hw_data *ha, uint32_t addr, uint8_t data) { uint16_t bank_select; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; @@ -1678,7 +1695,7 @@ qla2x00_write_flash_byte(scsi_qla_host_t *ha, uint32_t addr, uint8_t data) * Returns 0 on success, else non-zero. */ static int -qla2x00_poll_flash(scsi_qla_host_t *ha, uint32_t addr, uint8_t poll_data, +qla2x00_poll_flash(struct qla_hw_data *ha, uint32_t addr, uint8_t poll_data, uint8_t man_id, uint8_t flash_id) { int status; @@ -1718,8 +1735,8 @@ qla2x00_poll_flash(scsi_qla_host_t *ha, uint32_t addr, uint8_t poll_data, * Returns 0 on success, else non-zero. */ static int -qla2x00_program_flash_address(scsi_qla_host_t *ha, uint32_t addr, uint8_t data, - uint8_t man_id, uint8_t flash_id) +qla2x00_program_flash_address(struct qla_hw_data *ha, uint32_t addr, + uint8_t data, uint8_t man_id, uint8_t flash_id) { /* Write Program Command Sequence. */ if (IS_OEM_001(ha)) { @@ -1755,7 +1772,7 @@ qla2x00_program_flash_address(scsi_qla_host_t *ha, uint32_t addr, uint8_t data, * Returns 0 on success, else non-zero. */ static int -qla2x00_erase_flash(scsi_qla_host_t *ha, uint8_t man_id, uint8_t flash_id) +qla2x00_erase_flash(struct qla_hw_data *ha, uint8_t man_id, uint8_t flash_id) { /* Individual Sector Erase Command Sequence */ if (IS_OEM_001(ha)) { @@ -1791,7 +1808,7 @@ qla2x00_erase_flash(scsi_qla_host_t *ha, uint8_t man_id, uint8_t flash_id) * Returns 0 on success, else non-zero. */ static int -qla2x00_erase_flash_sector(scsi_qla_host_t *ha, uint32_t addr, +qla2x00_erase_flash_sector(struct qla_hw_data *ha, uint32_t addr, uint32_t sec_mask, uint8_t man_id, uint8_t flash_id) { /* Individual Sector Erase Command Sequence */ @@ -1817,7 +1834,7 @@ qla2x00_erase_flash_sector(scsi_qla_host_t *ha, uint32_t addr, * @flash_id: Flash ID */ static void -qla2x00_get_flash_manufacturer(scsi_qla_host_t *ha, uint8_t *man_id, +qla2x00_get_flash_manufacturer(struct qla_hw_data *ha, uint8_t *man_id, uint8_t *flash_id) { qla2x00_write_flash_byte(ha, 0x5555, 0xaa); @@ -1831,8 +1848,8 @@ qla2x00_get_flash_manufacturer(scsi_qla_host_t *ha, uint8_t *man_id, } static void -qla2x00_read_flash_data(scsi_qla_host_t *ha, uint8_t *tmp_buf, uint32_t saddr, - uint32_t length) +qla2x00_read_flash_data(struct qla_hw_data *ha, uint8_t *tmp_buf, + uint32_t saddr, uint32_t length) { struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; uint32_t midpoint, ilength; @@ -1856,14 +1873,15 @@ qla2x00_read_flash_data(scsi_qla_host_t *ha, uint8_t *tmp_buf, uint32_t saddr, } static inline void -qla2x00_suspend_hba(struct scsi_qla_host *ha) +qla2x00_suspend_hba(struct scsi_qla_host *vha) { int cnt; unsigned long flags; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; /* Suspend HBA. */ - scsi_block_requests(ha->host); + scsi_block_requests(vha->host); ha->isp_ops->disable_intrs(ha); set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags); @@ -1884,26 +1902,29 @@ qla2x00_suspend_hba(struct scsi_qla_host *ha) } static inline void -qla2x00_resume_hba(struct scsi_qla_host *ha) +qla2x00_resume_hba(struct scsi_qla_host *vha) { + struct qla_hw_data *ha = vha->hw; + /* Resume HBA. */ clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); - qla2xxx_wake_dpc(ha); - qla2x00_wait_for_hba_online(ha); - scsi_unblock_requests(ha->host); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); + qla2xxx_wake_dpc(vha); + qla2x00_wait_for_hba_online(vha); + scsi_unblock_requests(vha->host); } uint8_t * -qla2x00_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, +qla2x00_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, uint32_t offset, uint32_t length) { uint32_t addr, midpoint; uint8_t *data; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; /* Suspend HBA. */ - qla2x00_suspend_hba(ha); + qla2x00_suspend_hba(vha); /* Go with read. */ midpoint = ha->optrom_size / 2; @@ -1922,13 +1943,13 @@ qla2x00_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, qla2x00_flash_disable(ha); /* Resume HBA. */ - qla2x00_resume_hba(ha); + qla2x00_resume_hba(vha); return buf; } int -qla2x00_write_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, +qla2x00_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, uint32_t offset, uint32_t length) { @@ -1936,10 +1957,11 @@ qla2x00_write_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, uint8_t man_id, flash_id, sec_number, data; uint16_t wd; uint32_t addr, liter, sec_mask, rest_addr; + struct qla_hw_data *ha = vha->hw; struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; /* Suspend HBA. */ - qla2x00_suspend_hba(ha); + qla2x00_suspend_hba(vha); rval = QLA_SUCCESS; sec_number = 0; @@ -2139,55 +2161,58 @@ update_flash: qla2x00_flash_disable(ha); /* Resume HBA. */ - qla2x00_resume_hba(ha); + qla2x00_resume_hba(vha); return rval; } uint8_t * -qla24xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, +qla24xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, uint32_t offset, uint32_t length) { + struct qla_hw_data *ha = vha->hw; + /* Suspend HBA. */ - scsi_block_requests(ha->host); + scsi_block_requests(vha->host); set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags); /* Go with read. */ - qla24xx_read_flash_data(ha, (uint32_t *)buf, offset >> 2, length >> 2); + qla24xx_read_flash_data(vha, (uint32_t *)buf, offset >> 2, length >> 2); /* Resume HBA. */ clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags); - scsi_unblock_requests(ha->host); + scsi_unblock_requests(vha->host); return buf; } int -qla24xx_write_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, +qla24xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, uint32_t offset, uint32_t length) { int rval; + struct qla_hw_data *ha = vha->hw; /* Suspend HBA. */ - scsi_block_requests(ha->host); + scsi_block_requests(vha->host); set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags); /* Go with write. */ - rval = qla24xx_write_flash_data(ha, (uint32_t *)buf, offset >> 2, + rval = qla24xx_write_flash_data(vha, (uint32_t *)buf, offset >> 2, length >> 2); /* Resume HBA -- RISC reset needed. */ clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags); - set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); - qla2xxx_wake_dpc(ha); - qla2x00_wait_for_hba_online(ha); - scsi_unblock_requests(ha->host); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); + qla2xxx_wake_dpc(vha); + qla2x00_wait_for_hba_online(vha); + scsi_unblock_requests(vha->host); return rval; } uint8_t * -qla25xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, +qla25xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf, uint32_t offset, uint32_t length) { int rval; @@ -2195,6 +2220,7 @@ qla25xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, void *optrom; uint8_t *pbuf; uint32_t faddr, left, burst; + struct qla_hw_data *ha = vha->hw; if (offset & 0xfff) goto slow_read; @@ -2219,7 +2245,7 @@ qla25xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, if (burst > left) burst = left; - rval = qla2x00_dump_ram(ha, optrom_dma, + rval = qla2x00_dump_ram(vha, optrom_dma, flash_data_to_access_addr(faddr), burst); if (rval) { qla_printk(KERN_WARNING, ha, @@ -2248,7 +2274,7 @@ qla25xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, return buf; slow_read: - return qla24xx_read_optrom_data(ha, buf, offset, length); + return qla24xx_read_optrom_data(vha, buf, offset, length); } /** @@ -2270,7 +2296,7 @@ slow_read: * Returns QLA_SUCCESS on successful retrieval of version. */ static void -qla2x00_get_fcode_version(scsi_qla_host_t *ha, uint32_t pcids) +qla2x00_get_fcode_version(struct qla_hw_data *ha, uint32_t pcids) { int ret = QLA_FUNCTION_FAILED; uint32_t istart, iend, iter, vend; @@ -2344,13 +2370,14 @@ qla2x00_get_fcode_version(scsi_qla_host_t *ha, uint32_t pcids) } int -qla2x00_get_flash_version(scsi_qla_host_t *ha, void *mbuf) +qla2x00_get_flash_version(scsi_qla_host_t *vha, void *mbuf) { int ret = QLA_SUCCESS; uint8_t code_type, last_image; uint32_t pcihdr, pcids; uint8_t *dbyte; uint16_t *dcode; + struct qla_hw_data *ha = vha->hw; if (!ha->pio_address || !mbuf) return QLA_FUNCTION_FAILED; @@ -2370,8 +2397,8 @@ qla2x00_get_flash_version(scsi_qla_host_t *ha, void *mbuf) if (qla2x00_read_flash_byte(ha, pcihdr) != 0x55 || qla2x00_read_flash_byte(ha, pcihdr + 0x01) != 0xaa) { /* No signature */ - DEBUG2(printk("scsi(%ld): No matching ROM " - "signature.\n", ha->host_no)); + DEBUG2(qla_printk(KERN_DEBUG, ha, "No matching ROM " + "signature.\n")); ret = QLA_FUNCTION_FAILED; break; } @@ -2387,8 +2414,8 @@ qla2x00_get_flash_version(scsi_qla_host_t *ha, void *mbuf) qla2x00_read_flash_byte(ha, pcids + 0x2) != 'I' || qla2x00_read_flash_byte(ha, pcids + 0x3) != 'R') { /* Incorrect header. */ - DEBUG2(printk("%s(): PCI data struct not found " - "pcir_adr=%x.\n", __func__, pcids)); + DEBUG2(qla_printk(KERN_INFO, ha, "PCI data struct not " + "found pcir_adr=%x.\n", pcids)); ret = QLA_FUNCTION_FAILED; break; } @@ -2402,7 +2429,7 @@ qla2x00_get_flash_version(scsi_qla_host_t *ha, void *mbuf) qla2x00_read_flash_byte(ha, pcids + 0x12); ha->bios_revision[1] = qla2x00_read_flash_byte(ha, pcids + 0x13); - DEBUG3(printk("%s(): read BIOS %d.%d.\n", __func__, + DEBUG3(qla_printk(KERN_DEBUG, ha, "read BIOS %d.%d.\n", ha->bios_revision[1], ha->bios_revision[0])); break; case ROM_CODE_TYPE_FCODE: @@ -2416,12 +2443,12 @@ qla2x00_get_flash_version(scsi_qla_host_t *ha, void *mbuf) qla2x00_read_flash_byte(ha, pcids + 0x12); ha->efi_revision[1] = qla2x00_read_flash_byte(ha, pcids + 0x13); - DEBUG3(printk("%s(): read EFI %d.%d.\n", __func__, + DEBUG3(qla_printk(KERN_DEBUG, ha, "read EFI %d.%d.\n", ha->efi_revision[1], ha->efi_revision[0])); break; default: - DEBUG2(printk("%s(): Unrecognized code type %x at " - "pcids %x.\n", __func__, code_type, pcids)); + DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized code " + "type %x at pcids %x.\n", code_type, pcids)); break; } @@ -2441,16 +2468,16 @@ qla2x00_get_flash_version(scsi_qla_host_t *ha, void *mbuf) qla2x00_read_flash_data(ha, dbyte, ha->flt_region_fw * 4 + 10, 8); - DEBUG3(printk("%s(%ld): dumping fw ver from flash:\n", - __func__, ha->host_no)); + DEBUG3(qla_printk(KERN_DEBUG, ha, "dumping fw ver from " + "flash:\n")); DEBUG3(qla2x00_dump_buffer((uint8_t *)dbyte, 8)); if ((dcode[0] == 0xffff && dcode[1] == 0xffff && dcode[2] == 0xffff && dcode[3] == 0xffff) || (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 && dcode[3] == 0)) { - DEBUG2(printk("%s(): Unrecognized fw revision at " - "%x.\n", __func__, ha->flt_region_fw * 4)); + DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized fw " + "revision at %x.\n", ha->flt_region_fw * 4)); } else { /* values are in big endian */ ha->fw_revision[0] = dbyte[0] << 16 | dbyte[1]; @@ -2465,7 +2492,7 @@ qla2x00_get_flash_version(scsi_qla_host_t *ha, void *mbuf) } int -qla24xx_get_flash_version(scsi_qla_host_t *ha, void *mbuf) +qla24xx_get_flash_version(scsi_qla_host_t *vha, void *mbuf) { int ret = QLA_SUCCESS; uint32_t pcihdr, pcids; @@ -2473,6 +2500,7 @@ qla24xx_get_flash_version(scsi_qla_host_t *ha, void *mbuf) uint8_t *bcode; uint8_t code_type, last_image; int i; + struct qla_hw_data *ha = vha->hw; if (!mbuf) return QLA_FUNCTION_FAILED; @@ -2489,12 +2517,12 @@ qla24xx_get_flash_version(scsi_qla_host_t *ha, void *mbuf) last_image = 1; do { /* Verify PCI expansion ROM header. */ - qla24xx_read_flash_data(ha, dcode, pcihdr >> 2, 0x20); + qla24xx_read_flash_data(vha, dcode, pcihdr >> 2, 0x20); bcode = mbuf + (pcihdr % 4); if (bcode[0x0] != 0x55 || bcode[0x1] != 0xaa) { /* No signature */ - DEBUG2(printk("scsi(%ld): No matching ROM " - "signature.\n", ha->host_no)); + DEBUG2(qla_printk(KERN_DEBUG, ha, "No matching ROM " + "signature.\n")); ret = QLA_FUNCTION_FAILED; break; } @@ -2502,15 +2530,15 @@ qla24xx_get_flash_version(scsi_qla_host_t *ha, void *mbuf) /* Locate PCI data structure. */ pcids = pcihdr + ((bcode[0x19] << 8) | bcode[0x18]); - qla24xx_read_flash_data(ha, dcode, pcids >> 2, 0x20); + qla24xx_read_flash_data(vha, dcode, pcids >> 2, 0x20); bcode = mbuf + (pcihdr % 4); /* Validate signature of PCI data structure. */ if (bcode[0x0] != 'P' || bcode[0x1] != 'C' || bcode[0x2] != 'I' || bcode[0x3] != 'R') { /* Incorrect header. */ - DEBUG2(printk("%s(): PCI data struct not found " - "pcir_adr=%x.\n", __func__, pcids)); + DEBUG2(qla_printk(KERN_INFO, ha, "PCI data struct not " + "found pcir_adr=%x.\n", pcids)); ret = QLA_FUNCTION_FAILED; break; } @@ -2522,26 +2550,26 @@ qla24xx_get_flash_version(scsi_qla_host_t *ha, void *mbuf) /* Intel x86, PC-AT compatible. */ ha->bios_revision[0] = bcode[0x12]; ha->bios_revision[1] = bcode[0x13]; - DEBUG3(printk("%s(): read BIOS %d.%d.\n", __func__, + DEBUG3(qla_printk(KERN_DEBUG, ha, "read BIOS %d.%d.\n", ha->bios_revision[1], ha->bios_revision[0])); break; case ROM_CODE_TYPE_FCODE: /* Open Firmware standard for PCI (FCode). */ ha->fcode_revision[0] = bcode[0x12]; ha->fcode_revision[1] = bcode[0x13]; - DEBUG3(printk("%s(): read FCODE %d.%d.\n", __func__, + DEBUG3(qla_printk(KERN_DEBUG, ha, "read FCODE %d.%d.\n", ha->fcode_revision[1], ha->fcode_revision[0])); break; case ROM_CODE_TYPE_EFI: /* Extensible Firmware Interface (EFI). */ ha->efi_revision[0] = bcode[0x12]; ha->efi_revision[1] = bcode[0x13]; - DEBUG3(printk("%s(): read EFI %d.%d.\n", __func__, + DEBUG3(qla_printk(KERN_DEBUG, ha, "read EFI %d.%d.\n", ha->efi_revision[1], ha->efi_revision[0])); break; default: - DEBUG2(printk("%s(): Unrecognized code type %x at " - "pcids %x.\n", __func__, code_type, pcids)); + DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized code " + "type %x at pcids %x.\n", code_type, pcids)); break; } @@ -2555,7 +2583,7 @@ qla24xx_get_flash_version(scsi_qla_host_t *ha, void *mbuf) memset(ha->fw_revision, 0, sizeof(ha->fw_revision)); dcode = mbuf; - qla24xx_read_flash_data(ha, dcode, ha->flt_region_fw + 4, 4); + qla24xx_read_flash_data(vha, dcode, ha->flt_region_fw + 4, 4); for (i = 0; i < 4; i++) dcode[i] = be32_to_cpu(dcode[i]); @@ -2563,8 +2591,8 @@ qla24xx_get_flash_version(scsi_qla_host_t *ha, void *mbuf) dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) || (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 && dcode[3] == 0)) { - DEBUG2(printk("%s(): Unrecognized fw version at %x.\n", - __func__, ha->flt_region_fw)); + DEBUG2(qla_printk(KERN_INFO, ha, "Unrecognized fw " + "revision at %x.\n", ha->flt_region_fw * 4)); } else { ha->fw_revision[0] = dcode[0]; ha->fw_revision[1] = dcode[1]; @@ -2593,8 +2621,9 @@ qla2xxx_is_vpd_valid(uint8_t *pos, uint8_t *end) } int -qla2xxx_get_vpd_field(scsi_qla_host_t *ha, char *key, char *str, size_t size) +qla2xxx_get_vpd_field(scsi_qla_host_t *vha, char *key, char *str, size_t size) { + struct qla_hw_data *ha = vha->hw; uint8_t *pos = ha->vpd; uint8_t *end = pos + ha->vpd_size; int len = 0; @@ -2621,9 +2650,10 @@ qla2xxx_get_vpd_field(scsi_qla_host_t *ha, char *key, char *str, size_t size) } static int -qla2xxx_hw_event_store(scsi_qla_host_t *ha, uint32_t *fdata) +qla2xxx_hw_event_store(scsi_qla_host_t *vha, uint32_t *fdata) { uint32_t d[2], faddr; + struct qla_hw_data *ha = vha->hw; /* Locate first empty entry. */ for (;;) { @@ -2634,7 +2664,7 @@ qla2xxx_hw_event_store(scsi_qla_host_t *ha, uint32_t *fdata) return QLA_MEMORY_ALLOC_FAILED; } - qla24xx_read_flash_data(ha, d, ha->hw_event_ptr, 2); + qla24xx_read_flash_data(vha, d, ha->hw_event_ptr, 2); faddr = flash_data_to_access_addr(ha->hw_event_ptr); ha->hw_event_ptr += FA_HW_EVENT_ENTRY_SIZE; if (d[0] == __constant_cpu_to_le32(0xffffffff) && @@ -2655,12 +2685,12 @@ qla2xxx_hw_event_store(scsi_qla_host_t *ha, uint32_t *fdata) } int -qla2xxx_hw_event_log(scsi_qla_host_t *ha, uint16_t code, uint16_t d1, +qla2xxx_hw_event_log(scsi_qla_host_t *vha, uint16_t code, uint16_t d1, uint16_t d2, uint16_t d3) { #define QMARK(a, b, c, d) \ cpu_to_le32(LSB(a) << 24 | LSB(b) << 16 | LSB(c) << 8 | LSB(d)) - + struct qla_hw_data *ha = vha->hw; int rval; uint32_t marker[2], fdata[4]; @@ -2681,7 +2711,7 @@ qla2xxx_hw_event_log(scsi_qla_host_t *ha, uint16_t code, uint16_t d1, /* Locate marker. */ ha->hw_event_ptr = ha->flt_region_hw_event; for (;;) { - qla24xx_read_flash_data(ha, fdata, ha->hw_event_ptr, + qla24xx_read_flash_data(vha, fdata, ha->hw_event_ptr, 4); if (fdata[0] == __constant_cpu_to_le32(0xffffffff) && fdata[1] == __constant_cpu_to_le32(0xffffffff)) @@ -2700,7 +2730,7 @@ qla2xxx_hw_event_log(scsi_qla_host_t *ha, uint16_t code, uint16_t d1, } /* No marker, write it. */ if (!ha->flags.hw_event_marker_found) { - rval = qla2xxx_hw_event_store(ha, marker); + rval = qla2xxx_hw_event_store(vha, marker); if (rval != QLA_SUCCESS) { DEBUG2(qla_printk(KERN_WARNING, ha, "HW event -- Failed marker write=%x.!\n", @@ -2714,7 +2744,7 @@ qla2xxx_hw_event_log(scsi_qla_host_t *ha, uint16_t code, uint16_t d1, /* Store error. */ fdata[0] = cpu_to_le32(code << 16 | d1); fdata[1] = cpu_to_le32(d2 << 16 | d3); - rval = qla2xxx_hw_event_store(ha, fdata); + rval = qla2xxx_hw_event_store(vha, fdata); if (rval != QLA_SUCCESS) { DEBUG2(qla_printk(KERN_WARNING, ha, "HW event -- Failed error write=%x.!\n", diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index eea6720..be22f3a 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,9 +7,9 @@ /* * Driver version */ -#define QLA2XXX_VERSION "8.02.01-k9" +#define QLA2XXX_VERSION "8.02.03-k1" #define QLA_DRIVER_MAJOR_VER 8 #define QLA_DRIVER_MINOR_VER 2 -#define QLA_DRIVER_PATCH_VER 1 +#define QLA_DRIVER_PATCH_VER 3 #define QLA_DRIVER_BETA_VER 0 diff --git a/drivers/scsi/qlogicfas408.c b/drivers/scsi/qlogicfas408.c index de7b3bc..1ad5155 100644 --- a/drivers/scsi/qlogicfas408.c +++ b/drivers/scsi/qlogicfas408.c @@ -23,7 +23,7 @@ Functions as standalone, loadable, and PCMCIA driver, the latter from Dave Hinds' PCMCIA package. - Cleaned up 26/10/2002 by Alan Cox <alan@redhat.com> as part of the 2.5 + Cleaned up 26/10/2002 by Alan Cox <alan@lxorguk.ukuu.org.uk> as part of the 2.5 SCSI driver cleanup and audit. This driver still needs work on the following - Non terminating hardware waits diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index edfaf24..381838e 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -136,7 +136,7 @@ enum blk_eh_timer_return scsi_times_out(struct request *req) else eh_timed_out = NULL; - if (eh_timed_out) + if (eh_timed_out) { rtn = eh_timed_out(scmd); switch (rtn) { case BLK_EH_NOT_HANDLED: @@ -144,6 +144,7 @@ enum blk_eh_timer_return scsi_times_out(struct request *req) default: return rtn; } + } if (unlikely(!scsi_eh_scmd_add(scmd, SCSI_EH_CANCEL_CMD))) { scmd->result |= DID_TIME_OUT << 16; @@ -1405,8 +1406,9 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd) return ADD_TO_MLQUEUE; case GOOD: case COMMAND_TERMINATED: - case TASK_ABORTED: return SUCCESS; + case TASK_ABORTED: + goto maybe_retry; case CHECK_CONDITION: rtn = scsi_check_sense(scmd); if (rtn == NEEDS_RETRY) diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index dc1cfb2..2ae4f8f 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -94,7 +94,7 @@ static int ioctl_internal_command(struct scsi_device *sdev, char *cmd, SCSI_LOG_IOCTL(1, printk("Trying ioctl with scsi command %d\n", *cmd)); result = scsi_execute_req(sdev, cmd, DMA_NONE, NULL, 0, - &sshdr, timeout, retries); + &sshdr, timeout, retries, NULL); SCSI_LOG_IOCTL(2, printk("Ioctl returned 0x%x\n", result)); @@ -270,11 +270,11 @@ int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) EXPORT_SYMBOL(scsi_ioctl); /** - * scsi_nonblock_ioctl() - Handle SG_SCSI_RESET + * scsi_nonblockable_ioctl() - Handle SG_SCSI_RESET * @sdev: scsi device receiving ioctl * @cmd: Must be SC_SCSI_RESET * @arg: pointer to int containing SG_SCSI_RESET_{DEVICE,BUS,HOST} - * @filp: either NULL or a &struct file which must have the O_NONBLOCK flag. + * @ndelay: file mode O_NDELAY flag */ int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd, void __user *arg, int ndelay) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 148d3af..f2f51e03 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -183,13 +183,15 @@ int scsi_queue_insert(struct scsi_cmnd *cmd, int reason) * @timeout: request timeout in seconds * @retries: number of times to retry request * @flags: or into request flags; + * @resid: optional residual length * * returns the req->errors value which is the scsi_cmnd result * field. */ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, - unsigned char *sense, int timeout, int retries, int flags) + unsigned char *sense, int timeout, int retries, int flags, + int *resid) { struct request *req; int write = (data_direction == DMA_TO_DEVICE); @@ -224,6 +226,8 @@ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, if (unlikely(req->data_len > 0 && req->data_len <= bufflen)) memset(buffer + (bufflen - req->data_len), 0, req->data_len); + if (resid) + *resid = req->data_len; ret = req->errors; out: blk_put_request(req); @@ -235,7 +239,8 @@ EXPORT_SYMBOL(scsi_execute); int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, - struct scsi_sense_hdr *sshdr, int timeout, int retries) + struct scsi_sense_hdr *sshdr, int timeout, int retries, + int *resid) { char *sense = NULL; int result; @@ -246,7 +251,7 @@ int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd, return DRIVER_ERROR << 24; } result = scsi_execute(sdev, cmd, data_direction, buffer, bufflen, - sense, timeout, retries, 0); + sense, timeout, retries, 0, resid); if (sshdr) scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, sshdr); @@ -875,16 +880,24 @@ static void scsi_end_bidi_request(struct scsi_cmnd *cmd) * (the normal case for most drivers), we don't need * the logic to deal with cleaning up afterwards. * - * We must do one of several things here: + * We must call scsi_end_request(). This will finish off + * the specified number of sectors. If we are done, the + * command block will be released and the queue function + * will be goosed. If we are not done then we have to + * figure out what to do next: * - * a) Call scsi_end_request. This will finish off the - * specified number of sectors. If we are done, the - * command block will be released, and the queue - * function will be goosed. If we are not done, then - * scsi_end_request will directly goose the queue. + * a) We can call scsi_requeue_command(). The request + * will be unprepared and put back on the queue. Then + * a new command will be created for it. This should + * be used if we made forward progress, or if we want + * to switch from READ(10) to READ(6) for example. * - * b) We can just use scsi_requeue_command() here. This would - * be used if we just wanted to retry, for example. + * b) We can call scsi_queue_insert(). The request will + * be put back on the queue and retried using the same + * command as before, possibly after a delay. + * + * c) We can call blk_end_request() with -EIO to fail + * the remainder of the request. */ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) { @@ -896,6 +909,9 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) struct scsi_sense_hdr sshdr; int sense_valid = 0; int sense_deferred = 0; + enum {ACTION_FAIL, ACTION_REPREP, ACTION_RETRY, + ACTION_DELAYED_RETRY} action; + char *description = NULL; if (result) { sense_valid = scsi_command_normalize_sense(cmd, &sshdr); @@ -947,10 +963,13 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) return; this_count = blk_rq_bytes(req); - /* good_bytes = 0, or (inclusive) there were leftovers and - * result = 0, so scsi_end_request couldn't retry. - */ - if (sense_valid && !sense_deferred) { + if (host_byte(result) == DID_RESET) { + /* Third party bus reset or reset for error recovery + * reasons. Just retry the command and see what + * happens. + */ + action = ACTION_RETRY; + } else if (sense_valid && !sense_deferred) { switch (sshdr.sense_key) { case UNIT_ATTENTION: if (cmd->device->removable) { @@ -958,16 +977,15 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) * and quietly refuse further access. */ cmd->device->changed = 1; - scsi_end_request(cmd, -EIO, this_count, 1); - return; + description = "Media Changed"; + action = ACTION_FAIL; } else { /* Must have been a power glitch, or a * bus reset. Could not have been a * media change, so we just retry the - * request and see what happens. + * command and see what happens. */ - scsi_requeue_command(q, cmd); - return; + action = ACTION_RETRY; } break; case ILLEGAL_REQUEST: @@ -983,21 +1001,18 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) sshdr.asc == 0x20 && sshdr.ascq == 0x00) && (cmd->cmnd[0] == READ_10 || cmd->cmnd[0] == WRITE_10)) { + /* This will issue a new 6-byte command. */ cmd->device->use_10_for_rw = 0; - /* This will cause a retry with a - * 6-byte command. - */ - scsi_requeue_command(q, cmd); - } else if (sshdr.asc == 0x10) /* DIX */ - scsi_end_request(cmd, -EIO, this_count, 0); - else - scsi_end_request(cmd, -EIO, this_count, 1); - return; + action = ACTION_REPREP; + } else + action = ACTION_FAIL; + break; case ABORTED_COMMAND: if (sshdr.asc == 0x10) { /* DIF */ - scsi_end_request(cmd, -EIO, this_count, 0); - return; - } + action = ACTION_FAIL; + description = "Data Integrity Failure"; + } else + action = ACTION_RETRY; break; case NOT_READY: /* If the device is in the process of becoming @@ -1012,49 +1027,57 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) case 0x07: /* operation in progress */ case 0x08: /* Long write in progress */ case 0x09: /* self test in progress */ - scsi_requeue_command(q, cmd); - return; - default: + action = ACTION_DELAYED_RETRY; break; } + } else { + description = "Device not ready"; + action = ACTION_FAIL; } - if (!(req->cmd_flags & REQ_QUIET)) - scsi_cmd_print_sense_hdr(cmd, - "Device not ready", - &sshdr); - - scsi_end_request(cmd, -EIO, this_count, 1); - return; + break; case VOLUME_OVERFLOW: - if (!(req->cmd_flags & REQ_QUIET)) { - scmd_printk(KERN_INFO, cmd, - "Volume overflow, CDB: "); - __scsi_print_command(cmd->cmnd); - scsi_print_sense("", cmd); - } /* See SSC3rXX or current. */ - scsi_end_request(cmd, -EIO, this_count, 1); - return; + action = ACTION_FAIL; + break; default: + description = "Unhandled sense code"; + action = ACTION_FAIL; break; } + } else { + description = "Unhandled error code"; + action = ACTION_FAIL; } - if (host_byte(result) == DID_RESET) { - /* Third party bus reset or reset for error recovery - * reasons. Just retry the request and see what - * happens. - */ - scsi_requeue_command(q, cmd); - return; - } - if (result) { + + switch (action) { + case ACTION_FAIL: + /* Give up and fail the remainder of the request */ if (!(req->cmd_flags & REQ_QUIET)) { + if (description) + scmd_printk(KERN_INFO, cmd, "%s", + description); scsi_print_result(cmd); if (driver_byte(result) & DRIVER_SENSE) scsi_print_sense("", cmd); } + blk_end_request(req, -EIO, blk_rq_bytes(req)); + scsi_next_command(cmd); + break; + case ACTION_REPREP: + /* Unprep the request and put it back at the head of the queue. + * A new command will be prepared and issued. + */ + scsi_requeue_command(q, cmd); + break; + case ACTION_RETRY: + /* Retry the same command immediately */ + scsi_queue_insert(cmd, SCSI_MLQUEUE_EH_RETRY); + break; + case ACTION_DELAYED_RETRY: + /* Retry the same command after a delay */ + scsi_queue_insert(cmd, SCSI_MLQUEUE_DEVICE_BUSY); + break; } - scsi_end_request(cmd, -EIO, this_count, !result); } static int scsi_init_sgtable(struct request *req, struct scsi_data_buffer *sdb, @@ -1998,7 +2021,7 @@ scsi_mode_select(struct scsi_device *sdev, int pf, int sp, int modepage, } ret = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, real_buffer, len, - sshdr, timeout, retries); + sshdr, timeout, retries, NULL); kfree(real_buffer); return ret; } @@ -2063,7 +2086,7 @@ scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage, memset(buffer, 0, len); result = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buffer, len, - sshdr, timeout, retries); + sshdr, timeout, retries, NULL); /* This code looks awful: what it's doing is making sure an * ILLEGAL REQUEST sense return identifies the actual command @@ -2145,7 +2168,7 @@ scsi_test_unit_ready(struct scsi_device *sdev, int timeout, int retries, /* try to eat the UNIT_ATTENTION if there are enough retries */ do { result = scsi_execute_req(sdev, cmd, DMA_NONE, NULL, 0, sshdr, - timeout, retries); + timeout, retries, NULL); if (sdev->removable && scsi_sense_valid(sshdr) && sshdr->sense_key == UNIT_ATTENTION) sdev->changed = 1; diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index b14dc02..18486b5 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -216,7 +216,7 @@ static void scsi_unlock_floptical(struct scsi_device *sdev, scsi_cmd[4] = 0x2a; /* size */ scsi_cmd[5] = 0; scsi_execute_req(sdev, scsi_cmd, DMA_FROM_DEVICE, result, 0x2a, NULL, - SCSI_TIMEOUT, 3); + SCSI_TIMEOUT, 3, NULL); } /** @@ -573,6 +573,8 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result, /* Each pass gets up to three chances to ignore Unit Attention */ for (count = 0; count < 3; ++count) { + int resid; + memset(scsi_cmd, 0, 6); scsi_cmd[0] = INQUIRY; scsi_cmd[4] = (unsigned char) try_inquiry_len; @@ -581,7 +583,8 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result, result = scsi_execute_req(sdev, scsi_cmd, DMA_FROM_DEVICE, inq_result, try_inquiry_len, &sshdr, - HZ / 2 + HZ * scsi_inq_timeout, 3); + HZ / 2 + HZ * scsi_inq_timeout, 3, + &resid); SCSI_LOG_SCAN_BUS(3, printk(KERN_INFO "scsi scan: INQUIRY %s " "with code 0x%x\n", @@ -602,6 +605,14 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result, (sshdr.ascq == 0)) continue; } + } else { + /* + * if nothing was transferred, we try + * again. It's a workaround for some USB + * devices. + */ + if (resid == try_inquiry_len) + continue; } break; } @@ -1390,7 +1401,7 @@ static int scsi_report_lun_scan(struct scsi_target *starget, int bflags, result = scsi_execute_req(sdev, scsi_cmd, DMA_FROM_DEVICE, lun_data, length, &sshdr, - SCSI_TIMEOUT + 4 * HZ, 3); + SCSI_TIMEOUT + 4 * HZ, 3, NULL); SCSI_LOG_SCAN_BUS(3, printk (KERN_INFO "scsi scan: REPORT LUNS" " %s (try %d) result 0x%x\n", result diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 1e71abf..062304d 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -3012,6 +3012,16 @@ fc_timeout_deleted_rport(struct work_struct *work) rport->port_state = FC_PORTSTATE_NOTPRESENT; rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; + /* + * Pre-emptively kill I/O rather than waiting for the work queue + * item to teardown the starget. (FCOE libFC folks prefer this + * and to have the rport_port_id still set when it's done). + */ + spin_unlock_irqrestore(shost->host_lock, flags); + fc_terminate_rport_io(rport); + + BUG_ON(rport->port_state != FC_PORTSTATE_NOTPRESENT); + /* remove the identifiers that aren't used in the consisting binding */ switch (fc_host->tgtid_bind_type) { case FC_TGTID_BIND_BY_WWPN: @@ -3035,9 +3045,6 @@ fc_timeout_deleted_rport(struct work_struct *work) * went away and didn't come back - we'll remove * all attached scsi devices. */ - spin_unlock_irqrestore(shost->host_lock, flags); - - scsi_target_unblock(&rport->dev); fc_queue_work(shost, &rport->stgt_delete_work); } diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c index 7c2d289..f49f55c 100644 --- a/drivers/scsi/scsi_transport_spi.c +++ b/drivers/scsi/scsi_transport_spi.c @@ -111,8 +111,9 @@ static int spi_execute(struct scsi_device *sdev, const void *cmd, sense, DV_TIMEOUT, /* retries */ 1, REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | - REQ_FAILFAST_DRIVER); - if (result & DRIVER_SENSE) { + REQ_FAILFAST_DRIVER, + NULL); + if (driver_byte(result) & DRIVER_SENSE) { struct scsi_sense_hdr sshdr_tmp; if (!sshdr) sshdr = &sshdr_tmp; diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 5081b39..62b28d5 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -884,7 +884,7 @@ static int sd_sync_cache(struct scsi_disk *sdkp) * flush everything. */ res = scsi_execute_req(sdp, cmd, DMA_NONE, NULL, 0, &sshdr, - SD_TIMEOUT, SD_MAX_RETRIES); + SD_TIMEOUT, SD_MAX_RETRIES, NULL); if (res == 0) break; } @@ -1134,7 +1134,7 @@ sd_spinup_disk(struct scsi_disk *sdkp) the_result = scsi_execute_req(sdkp->device, cmd, DMA_NONE, NULL, 0, &sshdr, SD_TIMEOUT, - SD_MAX_RETRIES); + SD_MAX_RETRIES, NULL); /* * If the drive has indicated to us that it @@ -1192,7 +1192,8 @@ sd_spinup_disk(struct scsi_disk *sdkp) cmd[4] |= 1 << 4; scsi_execute_req(sdkp->device, cmd, DMA_NONE, NULL, 0, &sshdr, - SD_TIMEOUT, SD_MAX_RETRIES); + SD_TIMEOUT, SD_MAX_RETRIES, + NULL); spintime_expire = jiffies + 100 * HZ; spintime = 1; } @@ -1306,7 +1307,7 @@ repeat: the_result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE, buffer, longrc ? 13 : 8, &sshdr, - SD_TIMEOUT, SD_MAX_RETRIES); + SD_TIMEOUT, SD_MAX_RETRIES, NULL); if (media_not_present(sdkp, &sshdr)) return; @@ -1986,7 +1987,7 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start) return -ENODEV; res = scsi_execute_req(sdp, cmd, DMA_NONE, NULL, 0, &sshdr, - SD_TIMEOUT, SD_MAX_RETRIES); + SD_TIMEOUT, SD_MAX_RETRIES, NULL); if (res) { sd_printk(KERN_WARNING, sdkp, "START_STOP FAILED\n"); sd_print_result(sdkp, res); diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index 1bcf3c3..7f0df29 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -77,7 +77,7 @@ static int ses_recv_diag(struct scsi_device *sdev, int page_code, }; return scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen, - NULL, SES_TIMEOUT, SES_RETRIES); + NULL, SES_TIMEOUT, SES_RETRIES, NULL); } static int ses_send_diag(struct scsi_device *sdev, int page_code, @@ -95,7 +95,7 @@ static int ses_send_diag(struct scsi_device *sdev, int page_code, }; result = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, buf, bufflen, - NULL, SES_TIMEOUT, SES_RETRIES); + NULL, SES_TIMEOUT, SES_RETRIES, NULL); if (result) sdev_printk(KERN_ERR, sdev, "SEND DIAGNOSTIC result: %8x\n", result); @@ -369,7 +369,8 @@ static void ses_match_to_enclosure(struct enclosure_device *edev, return; if (scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, - VPD_INQUIRY_SIZE, NULL, SES_TIMEOUT, SES_RETRIES)) + VPD_INQUIRY_SIZE, NULL, SES_TIMEOUT, SES_RETRIES, + NULL)) goto free; vpd_len = (buf[2] << 8) + buf[3]; @@ -380,7 +381,7 @@ static void ses_match_to_enclosure(struct enclosure_device *edev, cmd[3] = vpd_len >> 8; cmd[4] = vpd_len & 0xff; if (scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, - vpd_len, NULL, SES_TIMEOUT, SES_RETRIES)) + vpd_len, NULL, SES_TIMEOUT, SES_RETRIES, NULL)) goto free; desc = buf + 4; diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 45b66b9..e7fa3ca 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -177,7 +177,7 @@ int sr_test_unit_ready(struct scsi_device *sdev, struct scsi_sense_hdr *sshdr) do { the_result = scsi_execute_req(sdev, cmd, DMA_NONE, NULL, 0, sshdr, SR_TIMEOUT, - retries--); + retries--, NULL); if (scsi_sense_valid(sshdr) && sshdr->sense_key == UNIT_ATTENTION) sdev->changed = 1; @@ -681,7 +681,7 @@ static void get_sectorsize(struct scsi_cd *cd) /* Do the command and wait.. */ the_result = scsi_execute_req(cd->device, cmd, DMA_FROM_DEVICE, buffer, sizeof(buffer), NULL, - SR_TIMEOUT, MAX_RETRIES); + SR_TIMEOUT, MAX_RETRIES, NULL); retries--; diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c index ae87d08..d92ff51 100644 --- a/drivers/scsi/sr_ioctl.c +++ b/drivers/scsi/sr_ioctl.c @@ -207,7 +207,7 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc) memset(sense, 0, sizeof(*sense)); result = scsi_execute(SDev, cgc->cmd, cgc->data_direction, cgc->buffer, cgc->buflen, (char *)sense, - cgc->timeout, IOCTL_RETRIES, 0); + cgc->timeout, IOCTL_RETRIES, 0, NULL); scsi_normalize_sense((char *)sense, sizeof(*sense), &sshdr); diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index c959bdc..7f3f317 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -451,9 +451,23 @@ static void st_sleep_done(void *data, char *sense, int result, int resid) complete(SRpnt->waiting); } -static struct st_request *st_allocate_request(void) +static struct st_request *st_allocate_request(struct scsi_tape *stp) { - return kzalloc(sizeof(struct st_request), GFP_KERNEL); + struct st_request *streq; + + streq = kzalloc(sizeof(*streq), GFP_KERNEL); + if (streq) + streq->stp = stp; + else { + DEBC(printk(KERN_ERR "%s: Can't get SCSI request.\n", + tape_name(stp));); + if (signal_pending(current)) + stp->buffer->syscall_result = -EINTR; + else + stp->buffer->syscall_result = -EBUSY; + } + + return streq; } static void st_release_request(struct st_request *streq) @@ -481,18 +495,10 @@ st_do_scsi(struct st_request * SRpnt, struct scsi_tape * STp, unsigned char *cmd return NULL; } - if (SRpnt == NULL) { - SRpnt = st_allocate_request(); - if (SRpnt == NULL) { - DEBC( printk(KERN_ERR "%s: Can't get SCSI request.\n", - tape_name(STp)); ); - if (signal_pending(current)) - (STp->buffer)->syscall_result = (-EINTR); - else - (STp->buffer)->syscall_result = (-EBUSY); + if (!SRpnt) { + SRpnt = st_allocate_request(STp); + if (!SRpnt) return NULL; - } - SRpnt->stp = STp; } /* If async IO, set last_SRpnt. This ptr tells write_behind_check @@ -527,6 +533,28 @@ st_do_scsi(struct st_request * SRpnt, struct scsi_tape * STp, unsigned char *cmd return SRpnt; } +static int st_scsi_kern_execute(struct st_request *streq, + const unsigned char *cmd, int data_direction, + void *buffer, unsigned bufflen, int timeout, + int retries) +{ + struct scsi_tape *stp = streq->stp; + int ret, resid; + + stp->buffer->cmdstat.have_sense = 0; + memcpy(streq->cmd, cmd, sizeof(streq->cmd)); + + ret = scsi_execute(stp->device, cmd, data_direction, buffer, bufflen, + streq->sense, timeout, retries, 0, &resid); + if (driver_byte(ret) & DRIVER_ERROR) + return -EBUSY; + + stp->buffer->cmdstat.midlevel_result = streq->result = ret; + stp->buffer->cmdstat.residual = resid; + stp->buffer->syscall_result = st_chk_result(stp, streq); + + return 0; +} /* Handle the write-behind checking (waits for completion). Returns -ENOSPC if write has been correct but EOM early warning reached, -EIO if write ended in @@ -599,6 +627,7 @@ static int cross_eof(struct scsi_tape * STp, int forward) { struct st_request *SRpnt; unsigned char cmd[MAX_COMMAND_SIZE]; + int ret; cmd[0] = SPACE; cmd[1] = 0x01; /* Space FileMarks */ @@ -612,19 +641,26 @@ static int cross_eof(struct scsi_tape * STp, int forward) DEBC(printk(ST_DEB_MSG "%s: Stepping over filemark %s.\n", tape_name(STp), forward ? "forward" : "backward")); - SRpnt = st_do_scsi(NULL, STp, cmd, 0, DMA_NONE, - STp->device->timeout, MAX_RETRIES, 1); + SRpnt = st_allocate_request(STp); if (!SRpnt) - return (STp->buffer)->syscall_result; + return STp->buffer->syscall_result; - st_release_request(SRpnt); - SRpnt = NULL; + ret = st_scsi_kern_execute(SRpnt, cmd, DMA_NONE, NULL, 0, + STp->device->request_queue->rq_timeout, + MAX_RETRIES); + if (ret) + goto out; + + ret = STp->buffer->syscall_result; if ((STp->buffer)->cmdstat.midlevel_result != 0) printk(KERN_ERR "%s: Stepping over filemark %s failed.\n", tape_name(STp), forward ? "forward" : "backward"); - return (STp->buffer)->syscall_result; +out: + st_release_request(SRpnt); + + return ret; } @@ -657,7 +693,8 @@ static int st_flush_write_buffer(struct scsi_tape * STp) cmd[4] = blks; SRpnt = st_do_scsi(NULL, STp, cmd, transfer, DMA_TO_DEVICE, - STp->device->timeout, MAX_WRITE_RETRIES, 1); + STp->device->request_queue->rq_timeout, + MAX_WRITE_RETRIES, 1); if (!SRpnt) return (STp->buffer)->syscall_result; @@ -844,21 +881,24 @@ static int test_ready(struct scsi_tape *STp, int do_wait) int attentions, waits, max_wait, scode; int retval = CHKRES_READY, new_session = 0; unsigned char cmd[MAX_COMMAND_SIZE]; - struct st_request *SRpnt = NULL; + struct st_request *SRpnt; struct st_cmdstatus *cmdstatp = &STp->buffer->cmdstat; + SRpnt = st_allocate_request(STp); + if (!SRpnt) + return STp->buffer->syscall_result; + max_wait = do_wait ? ST_BLOCK_SECONDS : 0; for (attentions=waits=0; ; ) { memset((void *) &cmd[0], 0, MAX_COMMAND_SIZE); cmd[0] = TEST_UNIT_READY; - SRpnt = st_do_scsi(SRpnt, STp, cmd, 0, DMA_NONE, - STp->long_timeout, MAX_READY_RETRIES, 1); - if (!SRpnt) { - retval = (STp->buffer)->syscall_result; + retval = st_scsi_kern_execute(SRpnt, cmd, DMA_NONE, NULL, 0, + STp->long_timeout, + MAX_READY_RETRIES); + if (retval) break; - } if (cmdstatp->have_sense) { @@ -902,8 +942,8 @@ static int test_ready(struct scsi_tape *STp, int do_wait) break; } - if (SRpnt != NULL) - st_release_request(SRpnt); + st_release_request(SRpnt); + return retval; } @@ -980,16 +1020,24 @@ static int check_tape(struct scsi_tape *STp, struct file *filp) } } + SRpnt = st_allocate_request(STp); + if (!SRpnt) { + retval = STp->buffer->syscall_result; + goto err_out; + } + if (STp->omit_blklims) STp->min_block = STp->max_block = (-1); else { memset((void *) &cmd[0], 0, MAX_COMMAND_SIZE); cmd[0] = READ_BLOCK_LIMITS; - SRpnt = st_do_scsi(SRpnt, STp, cmd, 6, DMA_FROM_DEVICE, - STp->device->timeout, MAX_READY_RETRIES, 1); - if (!SRpnt) { - retval = (STp->buffer)->syscall_result; + retval = st_scsi_kern_execute(SRpnt, cmd, DMA_FROM_DEVICE, + STp->buffer->b_data, 6, + STp->device->request_queue->rq_timeout, + MAX_READY_RETRIES); + if (retval) { + st_release_request(SRpnt); goto err_out; } @@ -1013,10 +1061,12 @@ static int check_tape(struct scsi_tape *STp, struct file *filp) cmd[0] = MODE_SENSE; cmd[4] = 12; - SRpnt = st_do_scsi(SRpnt, STp, cmd, 12, DMA_FROM_DEVICE, - STp->device->timeout, MAX_READY_RETRIES, 1); - if (!SRpnt) { - retval = (STp->buffer)->syscall_result; + retval = st_scsi_kern_execute(SRpnt, cmd, DMA_FROM_DEVICE, + STp->buffer->b_data, 12, + STp->device->request_queue->rq_timeout, + MAX_READY_RETRIES); + if (retval) { + st_release_request(SRpnt); goto err_out; } @@ -1246,10 +1296,17 @@ static int st_flush(struct file *filp, fl_owner_t id) cmd[0] = WRITE_FILEMARKS; cmd[4] = 1 + STp->two_fm; - SRpnt = st_do_scsi(NULL, STp, cmd, 0, DMA_NONE, - STp->device->timeout, MAX_WRITE_RETRIES, 1); + SRpnt = st_allocate_request(STp); if (!SRpnt) { - result = (STp->buffer)->syscall_result; + result = STp->buffer->syscall_result; + goto out; + } + + result = st_scsi_kern_execute(SRpnt, cmd, DMA_NONE, NULL, 0, + STp->device->request_queue->rq_timeout, + MAX_WRITE_RETRIES); + if (result) { + st_release_request(SRpnt); goto out; } @@ -1634,7 +1691,8 @@ st_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos) cmd[4] = blks; SRpnt = st_do_scsi(SRpnt, STp, cmd, transfer, DMA_TO_DEVICE, - STp->device->timeout, MAX_WRITE_RETRIES, !async_write); + STp->device->request_queue->rq_timeout, + MAX_WRITE_RETRIES, !async_write); if (!SRpnt) { retval = STbp->syscall_result; goto out; @@ -1804,7 +1862,8 @@ static long read_tape(struct scsi_tape *STp, long count, SRpnt = *aSRpnt; SRpnt = st_do_scsi(SRpnt, STp, cmd, bytes, DMA_FROM_DEVICE, - STp->device->timeout, MAX_RETRIES, 1); + STp->device->request_queue->rq_timeout, + MAX_RETRIES, 1); release_buffering(STp, 1); *aSRpnt = SRpnt; if (!SRpnt) @@ -2213,7 +2272,8 @@ static int st_set_options(struct scsi_tape *STp, long options) DEBC( printk(KERN_INFO "%s: Long timeout set to %d seconds.\n", name, (value & ~MT_ST_SET_LONG_TIMEOUT))); } else { - STp->device->timeout = value * HZ; + blk_queue_rq_timeout(STp->device->request_queue, + value * HZ); DEBC( printk(KERN_INFO "%s: Normal timeout set to %d seconds.\n", name, value) ); } @@ -2311,7 +2371,8 @@ static int st_set_options(struct scsi_tape *STp, long options) static int read_mode_page(struct scsi_tape *STp, int page, int omit_block_descs) { unsigned char cmd[MAX_COMMAND_SIZE]; - struct st_request *SRpnt = NULL; + struct st_request *SRpnt; + int ret; memset(cmd, 0, MAX_COMMAND_SIZE); cmd[0] = MODE_SENSE; @@ -2320,14 +2381,17 @@ static int read_mode_page(struct scsi_tape *STp, int page, int omit_block_descs) cmd[2] = page; cmd[4] = 255; - SRpnt = st_do_scsi(SRpnt, STp, cmd, cmd[4], DMA_FROM_DEVICE, - STp->device->timeout, 0, 1); - if (SRpnt == NULL) - return (STp->buffer)->syscall_result; + SRpnt = st_allocate_request(STp); + if (!SRpnt) + return STp->buffer->syscall_result; + ret = st_scsi_kern_execute(SRpnt, cmd, DMA_FROM_DEVICE, + STp->buffer->b_data, cmd[4], + STp->device->request_queue->rq_timeout, + MAX_RETRIES); st_release_request(SRpnt); - return (STp->buffer)->syscall_result; + return ret ? : STp->buffer->syscall_result; } @@ -2335,9 +2399,9 @@ static int read_mode_page(struct scsi_tape *STp, int page, int omit_block_descs) in the buffer is correctly formatted. The long timeout is used if slow is non-zero. */ static int write_mode_page(struct scsi_tape *STp, int page, int slow) { - int pgo; + int pgo, timeout, ret = 0; unsigned char cmd[MAX_COMMAND_SIZE]; - struct st_request *SRpnt = NULL; + struct st_request *SRpnt; memset(cmd, 0, MAX_COMMAND_SIZE); cmd[0] = MODE_SELECT; @@ -2351,14 +2415,21 @@ static int write_mode_page(struct scsi_tape *STp, int page, int slow) (STp->buffer)->b_data[MH_OFF_DEV_SPECIFIC] &= ~MH_BIT_WP; (STp->buffer)->b_data[pgo + MP_OFF_PAGE_NBR] &= MP_MSK_PAGE_NBR; - SRpnt = st_do_scsi(SRpnt, STp, cmd, cmd[4], DMA_TO_DEVICE, - (slow ? STp->long_timeout : STp->device->timeout), 0, 1); - if (SRpnt == NULL) - return (STp->buffer)->syscall_result; + SRpnt = st_allocate_request(STp); + if (!SRpnt) + return ret; + + timeout = slow ? STp->long_timeout : + STp->device->request_queue->rq_timeout; + + ret = st_scsi_kern_execute(SRpnt, cmd, DMA_TO_DEVICE, + STp->buffer->b_data, cmd[4], timeout, 0); + if (!ret) + ret = STp->buffer->syscall_result; st_release_request(SRpnt); - return (STp->buffer)->syscall_result; + return ret; } @@ -2464,7 +2535,7 @@ static int do_load_unload(struct scsi_tape *STp, struct file *filp, int load_cod } if (STp->immediate) { cmd[1] = 1; /* Don't wait for completion */ - timeout = STp->device->timeout; + timeout = STp->device->request_queue->rq_timeout; } else timeout = STp->long_timeout; @@ -2476,13 +2547,16 @@ static int do_load_unload(struct scsi_tape *STp, struct file *filp, int load_cod printk(ST_DEB_MSG "%s: Loading tape.\n", name); ); - SRpnt = st_do_scsi(NULL, STp, cmd, 0, DMA_NONE, - timeout, MAX_RETRIES, 1); + SRpnt = st_allocate_request(STp); if (!SRpnt) - return (STp->buffer)->syscall_result; + return STp->buffer->syscall_result; + + retval = st_scsi_kern_execute(SRpnt, cmd, DMA_NONE, NULL, 0, timeout, + MAX_RETRIES); + if (retval) + goto out; retval = (STp->buffer)->syscall_result; - st_release_request(SRpnt); if (!retval) { /* SCSI command successful */ @@ -2501,6 +2575,8 @@ static int do_load_unload(struct scsi_tape *STp, struct file *filp, int load_cod STps = &(STp->ps[STp->partition]); STps->drv_file = STps->drv_block = (-1); } +out: + st_release_request(SRpnt); return retval; } @@ -2638,7 +2714,7 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon cmd[2] = (arg >> 16); cmd[3] = (arg >> 8); cmd[4] = arg; - timeout = STp->device->timeout; + timeout = STp->device->request_queue->rq_timeout; DEBC( if (cmd_in == MTWEOF) printk(ST_DEB_MSG "%s: Writing %d filemarks.\n", name, @@ -2656,7 +2732,7 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon cmd[0] = REZERO_UNIT; if (STp->immediate) { cmd[1] = 1; /* Don't wait for completion */ - timeout = STp->device->timeout; + timeout = STp->device->request_queue->rq_timeout; } DEBC(printk(ST_DEB_MSG "%s: Rewinding tape.\n", name)); fileno = blkno = at_sm = 0; @@ -2669,7 +2745,7 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon cmd[0] = START_STOP; if (STp->immediate) { cmd[1] = 1; /* Don't wait for completion */ - timeout = STp->device->timeout; + timeout = STp->device->request_queue->rq_timeout; } cmd[4] = 3; DEBC(printk(ST_DEB_MSG "%s: Retensioning tape.\n", name)); @@ -2702,7 +2778,7 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon cmd[1] = (arg ? 1 : 0); /* Long erase with non-zero argument */ if (STp->immediate) { cmd[1] |= 2; /* Don't wait for completion */ - timeout = STp->device->timeout; + timeout = STp->device->request_queue->rq_timeout; } else timeout = STp->long_timeout * 8; @@ -2754,7 +2830,7 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon (STp->buffer)->b_data[9] = (ltmp >> 16); (STp->buffer)->b_data[10] = (ltmp >> 8); (STp->buffer)->b_data[11] = ltmp; - timeout = STp->device->timeout; + timeout = STp->device->request_queue->rq_timeout; DEBC( if (cmd_in == MTSETBLK || cmd_in == SET_DENS_AND_BLK) printk(ST_DEB_MSG @@ -2776,12 +2852,15 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon return (-ENOSYS); } - SRpnt = st_do_scsi(NULL, STp, cmd, datalen, direction, - timeout, MAX_RETRIES, 1); + SRpnt = st_allocate_request(STp); if (!SRpnt) return (STp->buffer)->syscall_result; - ioctl_result = (STp->buffer)->syscall_result; + ioctl_result = st_scsi_kern_execute(SRpnt, cmd, direction, + STp->buffer->b_data, datalen, + timeout, MAX_RETRIES); + if (!ioctl_result) + ioctl_result = (STp->buffer)->syscall_result; if (!ioctl_result) { /* SCSI command successful */ st_release_request(SRpnt); @@ -2943,10 +3022,17 @@ static int get_location(struct scsi_tape *STp, unsigned int *block, int *partiti if (!logical && !STp->scsi2_logical) scmd[1] = 1; } - SRpnt = st_do_scsi(NULL, STp, scmd, 20, DMA_FROM_DEVICE, - STp->device->timeout, MAX_READY_RETRIES, 1); + + SRpnt = st_allocate_request(STp); if (!SRpnt) - return (STp->buffer)->syscall_result; + return STp->buffer->syscall_result; + + result = st_scsi_kern_execute(SRpnt, scmd, DMA_FROM_DEVICE, + STp->buffer->b_data, 20, + STp->device->request_queue->rq_timeout, + MAX_READY_RETRIES); + if (result) + goto out; if ((STp->buffer)->syscall_result != 0 || (STp->device->scsi_level >= SCSI_2 && @@ -2974,6 +3060,7 @@ static int get_location(struct scsi_tape *STp, unsigned int *block, int *partiti DEBC(printk(ST_DEB_MSG "%s: Got tape pos. blk %d part %d.\n", name, *block, *partition)); } +out: st_release_request(SRpnt); SRpnt = NULL; @@ -3045,13 +3132,17 @@ static int set_location(struct scsi_tape *STp, unsigned int block, int partition } if (STp->immediate) { scmd[1] |= 1; /* Don't wait for completion */ - timeout = STp->device->timeout; + timeout = STp->device->request_queue->rq_timeout; } - SRpnt = st_do_scsi(NULL, STp, scmd, 0, DMA_NONE, - timeout, MAX_READY_RETRIES, 1); + SRpnt = st_allocate_request(STp); if (!SRpnt) - return (STp->buffer)->syscall_result; + return STp->buffer->syscall_result; + + result = st_scsi_kern_execute(SRpnt, scmd, DMA_NONE, NULL, 0, + timeout, MAX_READY_RETRIES); + if (result) + goto out; STps->drv_block = STps->drv_file = (-1); STps->eof = ST_NOEOF; @@ -3076,7 +3167,7 @@ static int set_location(struct scsi_tape *STp, unsigned int block, int partition STps->drv_block = STps->drv_file = 0; result = 0; } - +out: st_release_request(SRpnt); SRpnt = NULL; @@ -4029,7 +4120,7 @@ static int st_probe(struct device *dev) tpnt->partition = 0; tpnt->new_partition = 0; tpnt->nbr_partitions = 0; - tpnt->device->timeout = ST_TIMEOUT; + blk_queue_rq_timeout(tpnt->device->request_queue, ST_TIMEOUT); tpnt->long_timeout = ST_LONG_TIMEOUT; tpnt->try_dio = try_direct_io && !SDp->host->unchecked_isa_dma; diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index 2fa830c..a3a18ad 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -1108,8 +1108,7 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto out_scsi_host_put; } - hba->mmio_base = ioremap_nocache(pci_resource_start(pdev, 0), - pci_resource_len(pdev, 0)); + hba->mmio_base = pci_ioremap_bar(pdev, 0); if ( !hba->mmio_base) { printk(KERN_ERR DRV_NAME "(%s): memory map failed\n", pci_name(pdev)); diff --git a/drivers/scsi/sym53c416.c b/drivers/scsi/sym53c416.c index f7d2795..e5c369b 100644 --- a/drivers/scsi/sym53c416.c +++ b/drivers/scsi/sym53c416.c @@ -6,7 +6,7 @@ * Changes : * * Marcelo Tosatti <marcelo@conectiva.com.br> : Added io_request_lock locking - * Alan Cox <alan@redhat.com> : Cleaned up code formatting + * Alan Cox <alan@lxorguk.ukuu.org.uk> : Cleaned up code formatting * Fixed an irq locking bug * Added ISAPnP support * Bjoern A. Zeeb <bzeeb@zabbadoz.net> : Initial irq locking updates diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c index 69ac6e5..9a42734 100644 --- a/drivers/scsi/tmscsim.c +++ b/drivers/scsi/tmscsim.c @@ -2572,9 +2572,10 @@ static struct pci_driver dc390_driver = { static int __init dc390_module_init(void) { - if (!disable_clustering) + if (!disable_clustering) { printk(KERN_INFO "DC390: clustering now enabled by default. If you get problems load\n"); printk(KERN_INFO " with \"disable_clustering=1\" and report to maintainers\n"); + } if (tmscsim[0] == -1 || tmscsim[0] > 15) { tmscsim[0] = 7; diff --git a/drivers/scsi/u14-34f.c b/drivers/scsi/u14-34f.c index 329eb87..601e951 100644 --- a/drivers/scsi/u14-34f.c +++ b/drivers/scsi/u14-34f.c @@ -1111,7 +1111,8 @@ static int u14_34f_detect(struct scsi_host_template *tpnt) { static void map_dma(unsigned int i, unsigned int j) { unsigned int data_len = 0; - unsigned int k, count, pci_dir; + unsigned int k, pci_dir; + int count; struct scatterlist *sg; struct mscp *cpp; struct scsi_cmnd *SCpnt; diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c index d4c1356..093610b 100644 --- a/drivers/scsi/wd7000.c +++ b/drivers/scsi/wd7000.c @@ -146,13 +146,13 @@ * * use host->host_lock, not io_request_lock, cleanups * - * 2002/10/04 - Alan Cox <alan@redhat.com> + * 2002/10/04 - Alan Cox <alan@lxorguk.ukuu.org.uk> * * Use dev_id for interrupts, kill __func__ pasting * Add a lock for the scb pool, clean up all other cli/sti usage stuff * Use the adapter lock for the other places we had the cli's * - * 2002/10/06 - Alan Cox <alan@redhat.com> + * 2002/10/06 - Alan Cox <alan@lxorguk.ukuu.org.uk> * * Switch to new style error handling * Clean up delay to udelay, and yielding sleeps diff --git a/include/scsi/fc/fc_els.h b/include/scsi/fc/fc_els.h new file mode 100644 index 0000000..195ca01 --- /dev/null +++ b/include/scsi/fc/fc_els.h @@ -0,0 +1,816 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_ELS_H_ +#define _FC_ELS_H_ + +/* + * Fibre Channel Switch - Enhanced Link Services definitions. + * From T11 FC-LS Rev 1.2 June 7, 2005. + */ + +/* + * ELS Command codes - byte 0 of the frame payload + */ +enum fc_els_cmd { + ELS_LS_RJT = 0x01, /* ESL reject */ + ELS_LS_ACC = 0x02, /* ESL Accept */ + ELS_PLOGI = 0x03, /* N_Port login */ + ELS_FLOGI = 0x04, /* F_Port login */ + ELS_LOGO = 0x05, /* Logout */ + ELS_ABTX = 0x06, /* Abort exchange - obsolete */ + ELS_RCS = 0x07, /* read connection status */ + ELS_RES = 0x08, /* read exchange status block */ + ELS_RSS = 0x09, /* read sequence status block */ + ELS_RSI = 0x0a, /* read sequence initiative */ + ELS_ESTS = 0x0b, /* establish streaming */ + ELS_ESTC = 0x0c, /* estimate credit */ + ELS_ADVC = 0x0d, /* advise credit */ + ELS_RTV = 0x0e, /* read timeout value */ + ELS_RLS = 0x0f, /* read link error status block */ + ELS_ECHO = 0x10, /* echo */ + ELS_TEST = 0x11, /* test */ + ELS_RRQ = 0x12, /* reinstate recovery qualifier */ + ELS_REC = 0x13, /* read exchange concise */ + ELS_SRR = 0x14, /* sequence retransmission request */ + ELS_PRLI = 0x20, /* process login */ + ELS_PRLO = 0x21, /* process logout */ + ELS_SCN = 0x22, /* state change notification */ + ELS_TPLS = 0x23, /* test process login state */ + ELS_TPRLO = 0x24, /* third party process logout */ + ELS_LCLM = 0x25, /* login control list mgmt (obs) */ + ELS_GAID = 0x30, /* get alias_ID */ + ELS_FACT = 0x31, /* fabric activate alias_id */ + ELS_FDACDT = 0x32, /* fabric deactivate alias_id */ + ELS_NACT = 0x33, /* N-port activate alias_id */ + ELS_NDACT = 0x34, /* N-port deactivate alias_id */ + ELS_QOSR = 0x40, /* quality of service request */ + ELS_RVCS = 0x41, /* read virtual circuit status */ + ELS_PDISC = 0x50, /* discover N_port service params */ + ELS_FDISC = 0x51, /* discover F_port service params */ + ELS_ADISC = 0x52, /* discover address */ + ELS_RNC = 0x53, /* report node cap (obs) */ + ELS_FARP_REQ = 0x54, /* FC ARP request */ + ELS_FARP_REPL = 0x55, /* FC ARP reply */ + ELS_RPS = 0x56, /* read port status block */ + ELS_RPL = 0x57, /* read port list */ + ELS_RPBC = 0x58, /* read port buffer condition */ + ELS_FAN = 0x60, /* fabric address notification */ + ELS_RSCN = 0x61, /* registered state change notification */ + ELS_SCR = 0x62, /* state change registration */ + ELS_RNFT = 0x63, /* report node FC-4 types */ + ELS_CSR = 0x68, /* clock synch. request */ + ELS_CSU = 0x69, /* clock synch. update */ + ELS_LINIT = 0x70, /* loop initialize */ + ELS_LSTS = 0x72, /* loop status */ + ELS_RNID = 0x78, /* request node ID data */ + ELS_RLIR = 0x79, /* registered link incident report */ + ELS_LIRR = 0x7a, /* link incident record registration */ + ELS_SRL = 0x7b, /* scan remote loop */ + ELS_SBRP = 0x7c, /* set bit-error reporting params */ + ELS_RPSC = 0x7d, /* report speed capabilities */ + ELS_QSA = 0x7e, /* query security attributes */ + ELS_EVFP = 0x7f, /* exchange virt. fabrics params */ + ELS_LKA = 0x80, /* link keep-alive */ + ELS_AUTH_ELS = 0x90, /* authentication ELS */ +}; + +/* + * Initializer useful for decoding table. + * Please keep this in sync with the above definitions. + */ +#define FC_ELS_CMDS_INIT { \ + [ELS_LS_RJT] = "LS_RJT", \ + [ELS_LS_ACC] = "LS_ACC", \ + [ELS_PLOGI] = "PLOGI", \ + [ELS_FLOGI] = "FLOGI", \ + [ELS_LOGO] = "LOGO", \ + [ELS_ABTX] = "ABTX", \ + [ELS_RCS] = "RCS", \ + [ELS_RES] = "RES", \ + [ELS_RSS] = "RSS", \ + [ELS_RSI] = "RSI", \ + [ELS_ESTS] = "ESTS", \ + [ELS_ESTC] = "ESTC", \ + [ELS_ADVC] = "ADVC", \ + [ELS_RTV] = "RTV", \ + [ELS_RLS] = "RLS", \ + [ELS_ECHO] = "ECHO", \ + [ELS_TEST] = "TEST", \ + [ELS_RRQ] = "RRQ", \ + [ELS_REC] = "REC", \ + [ELS_SRR] = "SRR", \ + [ELS_PRLI] = "PRLI", \ + [ELS_PRLO] = "PRLO", \ + [ELS_SCN] = "SCN", \ + [ELS_TPLS] = "TPLS", \ + [ELS_TPRLO] = "TPRLO", \ + [ELS_LCLM] = "LCLM", \ + [ELS_GAID] = "GAID", \ + [ELS_FACT] = "FACT", \ + [ELS_FDACDT] = "FDACDT", \ + [ELS_NACT] = "NACT", \ + [ELS_NDACT] = "NDACT", \ + [ELS_QOSR] = "QOSR", \ + [ELS_RVCS] = "RVCS", \ + [ELS_PDISC] = "PDISC", \ + [ELS_FDISC] = "FDISC", \ + [ELS_ADISC] = "ADISC", \ + [ELS_RNC] = "RNC", \ + [ELS_FARP_REQ] = "FARP_REQ", \ + [ELS_FARP_REPL] = "FARP_REPL", \ + [ELS_RPS] = "RPS", \ + [ELS_RPL] = "RPL", \ + [ELS_RPBC] = "RPBC", \ + [ELS_FAN] = "FAN", \ + [ELS_RSCN] = "RSCN", \ + [ELS_SCR] = "SCR", \ + [ELS_RNFT] = "RNFT", \ + [ELS_CSR] = "CSR", \ + [ELS_CSU] = "CSU", \ + [ELS_LINIT] = "LINIT", \ + [ELS_LSTS] = "LSTS", \ + [ELS_RNID] = "RNID", \ + [ELS_RLIR] = "RLIR", \ + [ELS_LIRR] = "LIRR", \ + [ELS_SRL] = "SRL", \ + [ELS_SBRP] = "SBRP", \ + [ELS_RPSC] = "RPSC", \ + [ELS_QSA] = "QSA", \ + [ELS_EVFP] = "EVFP", \ + [ELS_LKA] = "LKA", \ + [ELS_AUTH_ELS] = "AUTH_ELS", \ +} + +/* + * LS_ACC payload. + */ +struct fc_els_ls_acc { + __u8 la_cmd; /* command code ELS_LS_ACC */ + __u8 la_resv[3]; /* reserved */ +}; + +/* + * ELS reject payload. + */ +struct fc_els_ls_rjt { + __u8 er_cmd; /* command code ELS_LS_RJT */ + __u8 er_resv[4]; /* reserved must be zero */ + __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */ + __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */ + __u8 er_vendor; /* vendor specific code */ +}; + +/* + * ELS reject reason codes (er_reason). + */ +enum fc_els_rjt_reason { + ELS_RJT_NONE = 0, /* no reject - not to be sent */ + ELS_RJT_INVAL = 0x01, /* invalid ELS command code */ + ELS_RJT_LOGIC = 0x03, /* logical error */ + ELS_RJT_BUSY = 0x05, /* logical busy */ + ELS_RJT_PROT = 0x07, /* protocol error */ + ELS_RJT_UNAB = 0x09, /* unable to perform command request */ + ELS_RJT_UNSUP = 0x0b, /* command not supported */ + ELS_RJT_INPROG = 0x0e, /* command already in progress */ + ELS_RJT_VENDOR = 0xff, /* vendor specific error */ +}; + + +/* + * reason code explanation (er_explan). + */ +enum fc_els_rjt_explan { + ELS_EXPL_NONE = 0x00, /* No additional explanation */ + ELS_EXPL_SPP_OPT_ERR = 0x01, /* service parameter error - options */ + ELS_EXPL_SPP_ICTL_ERR = 0x03, /* service parm error - initiator ctl */ + ELS_EXPL_AH = 0x11, /* invalid association header */ + ELS_EXPL_AH_REQ = 0x13, /* association_header required */ + ELS_EXPL_SID = 0x15, /* invalid originator S_ID */ + ELS_EXPL_OXID_RXID = 0x17, /* invalid OX_ID-RX_ID combination */ + ELS_EXPL_INPROG = 0x19, /* Request already in progress */ + ELS_EXPL_PLOGI_REQD = 0x1e, /* N_Port login required */ + ELS_EXPL_INSUF_RES = 0x29, /* insufficient resources */ + ELS_EXPL_UNAB_DATA = 0x2a, /* unable to supply requested data */ + ELS_EXPL_UNSUPR = 0x2c, /* Request not supported */ + ELS_EXPL_INV_LEN = 0x2d, /* Invalid payload length */ + /* TBD - above definitions incomplete */ +}; + +/* + * Common service parameters (N ports). + */ +struct fc_els_csp { + __u8 sp_hi_ver; /* highest version supported (obs.) */ + __u8 sp_lo_ver; /* highest version supported (obs.) */ + __be16 sp_bb_cred; /* buffer-to-buffer credits */ + __be16 sp_features; /* common feature flags */ + __be16 sp_bb_data; /* b-b state number and data field sz */ + union { + struct { + __be16 _sp_tot_seq; /* total concurrent sequences */ + __be16 _sp_rel_off; /* rel. offset by info cat */ + } sp_plogi; + struct { + __be32 _sp_r_a_tov; /* resource alloc. timeout msec */ + } sp_flogi_acc; + } sp_u; + __be32 sp_e_d_tov; /* error detect timeout value */ +}; +#define sp_tot_seq sp_u.sp_plogi._sp_tot_seq +#define sp_rel_off sp_u.sp_plogi._sp_rel_off +#define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov + +#define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */ + +/* + * Minimum and maximum values for max data field size in service parameters. + */ +#define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD +#define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD + +/* + * sp_features + */ +#define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel. off. */ +#define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */ +#define FC_SP_FT_RAND 0x4000 /* random relative offset */ +#define FC_SP_FT_VAL 0x2000 /* valid vendor version level */ +#define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */ +#define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */ +#define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */ +#define FC_SP_FT_MCAST 0x0200 /* multicast */ +#define FC_SP_FT_BCAST 0x0100 /* broadcast */ +#define FC_SP_FT_HUNT 0x0080 /* hunt group */ +#define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */ +#define FC_SP_FT_SEC 0x0020 /* reserved for security */ +#define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */ +#define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */ +#define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */ +#define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */ +#define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */ + +/* + * Class-specific service parameters. + */ +struct fc_els_cssp { + __be16 cp_class; /* class flags */ + __be16 cp_init; /* initiator flags */ + __be16 cp_recip; /* recipient flags */ + __be16 cp_rdfs; /* receive data field size */ + __be16 cp_con_seq; /* concurrent sequences */ + __be16 cp_ee_cred; /* N-port end-to-end credit */ + __u8 cp_resv1; /* reserved */ + __u8 cp_open_seq; /* open sequences per exchange */ + __u8 _cp_resv2[2]; /* reserved */ +}; + +/* + * cp_class flags. + */ +#define FC_CPC_VALID 0x8000 /* class valid */ +#define FC_CPC_IMIX 0x4000 /* intermix mode */ +#define FC_CPC_SEQ 0x0800 /* sequential delivery */ +#define FC_CPC_CAMP 0x0200 /* camp-on */ +#define FC_CPC_PRI 0x0080 /* priority */ + +/* + * cp_init flags. + * (TBD: not all flags defined here). + */ +#define FC_CPI_CSYN 0x0010 /* clock synch. capable */ + +/* + * cp_recip flags. + */ +#define FC_CPR_CSYN 0x0008 /* clock synch. capable */ + +/* + * NFC_ELS_FLOGI: Fabric login request. + * NFC_ELS_PLOGI: Port login request (same format). + */ +struct fc_els_flogi { + __u8 fl_cmd; /* command */ + __u8 _fl_resvd[3]; /* must be zero */ + struct fc_els_csp fl_csp; /* common service parameters */ + __be64 fl_wwpn; /* port name */ + __be64 fl_wwnn; /* node name */ + struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */ + __u8 fl_vend[16]; /* vendor version level */ +} __attribute__((__packed__)); + +/* + * Process login service parameter page. + */ +struct fc_els_spp { + __u8 spp_type; /* type code or common service params */ + __u8 spp_type_ext; /* type code extension */ + __u8 spp_flags; + __u8 _spp_resvd; + __be32 spp_orig_pa; /* originator process associator */ + __be32 spp_resp_pa; /* responder process associator */ + __be32 spp_params; /* service parameters */ +}; + +/* + * spp_flags. + */ +#define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */ +#define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */ +#define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */ +#define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */ + +/* + * SPP response code in spp_flags - lower 4 bits. + */ +enum fc_els_spp_resp { + FC_SPP_RESP_ACK = 1, /* request executed */ + FC_SPP_RESP_RES = 2, /* unable due to lack of resources */ + FC_SPP_RESP_INIT = 3, /* initialization not complete */ + FC_SPP_RESP_NO_PA = 4, /* unknown process associator */ + FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */ + FC_SPP_RESP_COND = 6, /* request completed conditionally */ + FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */ + FC_SPP_RESP_INVL = 8, /* SPP is invalid */ +}; + +/* + * ELS_RRQ - Reinstate Recovery Qualifier + */ +struct fc_els_rrq { + __u8 rrq_cmd; /* command (0x12) */ + __u8 rrq_zero[3]; /* specified as zero - part of cmd */ + __u8 rrq_resvd; /* reserved */ + __u8 rrq_s_id[3]; /* originator FID */ + __be16 rrq_ox_id; /* originator exchange ID */ + __be16 rrq_rx_id; /* responders exchange ID */ +}; + +/* + * ELS_REC - Read exchange concise. + */ +struct fc_els_rec { + __u8 rec_cmd; /* command (0x13) */ + __u8 rec_zero[3]; /* specified as zero - part of cmd */ + __u8 rec_resvd; /* reserved */ + __u8 rec_s_id[3]; /* originator FID */ + __be16 rec_ox_id; /* originator exchange ID */ + __be16 rec_rx_id; /* responders exchange ID */ +}; + +/* + * ELS_REC LS_ACC payload. + */ +struct fc_els_rec_acc { + __u8 reca_cmd; /* accept (0x02) */ + __u8 reca_zero[3]; /* specified as zero - part of cmd */ + __be16 reca_ox_id; /* originator exchange ID */ + __be16 reca_rx_id; /* responders exchange ID */ + __u8 reca_resvd1; /* reserved */ + __u8 reca_ofid[3]; /* originator FID */ + __u8 reca_resvd2; /* reserved */ + __u8 reca_rfid[3]; /* responder FID */ + __be32 reca_fc4value; /* FC4 value */ + __be32 reca_e_stat; /* ESB (exchange status block) status */ +}; + +/* + * ELS_PRLI - Process login request and response. + */ +struct fc_els_prli { + __u8 prli_cmd; /* command */ + __u8 prli_spp_len; /* length of each serv. parm. page */ + __be16 prli_len; /* length of entire payload */ + /* service parameter pages follow */ +}; + +/* + * ELS_ADISC payload + */ +struct fc_els_adisc { + __u8 adisc_cmd; + __u8 adisc_resv[3]; + __u8 adisc_resv1; + __u8 adisc_hard_addr[3]; + __be64 adisc_wwpn; + __be64 adisc_wwnn; + __u8 adisc_resv2; + __u8 adisc_port_id[3]; +} __attribute__((__packed__)); + +/* + * ELS_LOGO - process or fabric logout. + */ +struct fc_els_logo { + __u8 fl_cmd; /* command code */ + __u8 fl_zero[3]; /* specified as zero - part of cmd */ + __u8 fl_resvd; /* reserved */ + __u8 fl_n_port_id[3];/* N port ID */ + __be64 fl_n_port_wwn; /* port name */ +}; + +/* + * ELS_RTV - read timeout value. + */ +struct fc_els_rtv { + __u8 rtv_cmd; /* command code 0x0e */ + __u8 rtv_zero[3]; /* specified as zero - part of cmd */ +}; + +/* + * LS_ACC for ELS_RTV - read timeout value. + */ +struct fc_els_rtv_acc { + __u8 rtv_cmd; /* command code 0x02 */ + __u8 rtv_zero[3]; /* specified as zero - part of cmd */ + __be32 rtv_r_a_tov; /* resource allocation timeout value */ + __be32 rtv_e_d_tov; /* error detection timeout value */ + __be32 rtv_toq; /* timeout qualifier (see below) */ +}; + +/* + * rtv_toq bits. + */ +#define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */ +#define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */ + +/* + * ELS_SCR - state change registration payload. + */ +struct fc_els_scr { + __u8 scr_cmd; /* command code */ + __u8 scr_resv[6]; /* reserved */ + __u8 scr_reg_func; /* registration function (see below) */ +}; + +enum fc_els_scr_func { + ELS_SCRF_FAB = 1, /* fabric-detected registration */ + ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */ + ELS_SCRF_FULL = 3, /* full registration */ + ELS_SCRF_CLEAR = 255, /* remove any current registrations */ +}; + +/* + * ELS_RSCN - registered state change notification payload. + */ +struct fc_els_rscn { + __u8 rscn_cmd; /* RSCN opcode (0x61) */ + __u8 rscn_page_len; /* page length (4) */ + __be16 rscn_plen; /* payload length including this word */ + + /* followed by 4-byte generic affected Port_ID pages */ +}; + +struct fc_els_rscn_page { + __u8 rscn_page_flags; /* event and address format */ + __u8 rscn_fid[3]; /* fabric ID */ +}; + +#define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */ +#define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */ +#define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */ +#define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */ + +enum fc_els_rscn_ev_qual { + ELS_EV_QUAL_NONE = 0, /* unspecified */ + ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */ + ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */ + ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */ + ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */ + ELS_EV_QUAL_REM_OBJ = 5, /* removed object */ +}; + +enum fc_els_rscn_addr_fmt { + ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */ + ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */ + ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */ + ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */ +}; + +/* + * ELS_RNID - request Node ID. + */ +struct fc_els_rnid { + __u8 rnid_cmd; /* RNID opcode (0x78) */ + __u8 rnid_resv[3]; /* reserved */ + __u8 rnid_fmt; /* data format */ + __u8 rnid_resv2[3]; /* reserved */ +}; + +/* + * Node Identification Data formats (rnid_fmt) + */ +enum fc_els_rnid_fmt { + ELS_RNIDF_NONE = 0, /* no specific identification data */ + ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */ +}; + +/* + * ELS_RNID response. + */ +struct fc_els_rnid_resp { + __u8 rnid_cmd; /* response code (LS_ACC) */ + __u8 rnid_resv[3]; /* reserved */ + __u8 rnid_fmt; /* data format */ + __u8 rnid_cid_len; /* common ID data length */ + __u8 rnid_resv2; /* reserved */ + __u8 rnid_sid_len; /* specific ID data length */ +}; + +struct fc_els_rnid_cid { + __be64 rnid_wwpn; /* N port name */ + __be64 rnid_wwnn; /* node name */ +}; + +struct fc_els_rnid_gen { + __u8 rnid_vend_id[16]; /* vendor-unique ID */ + __be32 rnid_atype; /* associated type (see below) */ + __be32 rnid_phys_port; /* physical port number */ + __be32 rnid_att_nodes; /* number of attached nodes */ + __u8 rnid_node_mgmt; /* node management (see below) */ + __u8 rnid_ip_ver; /* IP version (see below) */ + __be16 rnid_prot_port; /* UDP / TCP port number */ + __be32 rnid_ip_addr[4]; /* IP address */ + __u8 rnid_resvd[2]; /* reserved */ + __be16 rnid_vend_spec; /* vendor-specific field */ +}; + +enum fc_els_rnid_atype { + ELS_RNIDA_UNK = 0x01, /* unknown */ + ELS_RNIDA_OTHER = 0x02, /* none of the following */ + ELS_RNIDA_HUB = 0x03, + ELS_RNIDA_SWITCH = 0x04, + ELS_RNIDA_GATEWAY = 0x05, + ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */ + ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */ + ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */ + ELS_RNIDA_STORAGE = 0x09, + ELS_RNIDA_HOST = 0x0a, + ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */ + ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */ + ELS_RNIDA_NAS = 0x11, /* NAS server */ + ELS_RNIDA_BRIDGE = 0x12, /* bridge */ + ELS_RNIDA_VIRT = 0x13, /* virtualization device */ + ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */ + ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */ + ELS_RNIDA_MF_SW = 1UL << 30, /* switch */ + ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */ + ELS_RNIDA_MF_ST = 1UL << 28, /* storage */ + ELS_RNIDA_MF_HOST = 1UL << 27, /* host */ + ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */ + ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */ + ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */ + ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */ + ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */ + ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */ +}; + +enum fc_els_rnid_mgmt { + ELS_RNIDM_SNMP = 0, + ELS_RNIDM_TELNET = 1, + ELS_RNIDM_HTTP = 2, + ELS_RNIDM_HTTPS = 3, + ELS_RNIDM_XML = 4, /* HTTP + XML */ +}; + +enum fc_els_rnid_ipver { + ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */ + ELS_RNIDIP_V4 = 1, /* IPv4 */ + ELS_RNIDIP_V6 = 2, /* IPv6 */ +}; + +/* + * ELS RPL - Read Port List. + */ +struct fc_els_rpl { + __u8 rpl_cmd; /* command */ + __u8 rpl_resv[5]; /* reserved - must be zero */ + __be16 rpl_max_size; /* maximum response size or zero */ + __u8 rpl_resv1; /* reserved - must be zero */ + __u8 rpl_index[3]; /* starting index */ +}; + +/* + * Port number block in RPL response. + */ +struct fc_els_pnb { + __be32 pnb_phys_pn; /* physical port number */ + __u8 pnb_resv; /* reserved */ + __u8 pnb_port_id[3]; /* port ID */ + __be64 pnb_wwpn; /* port name */ +}; + +/* + * RPL LS_ACC response. + */ +struct fc_els_rpl_resp { + __u8 rpl_cmd; /* ELS_LS_ACC */ + __u8 rpl_resv1; /* reserved - must be zero */ + __be16 rpl_plen; /* payload length */ + __u8 rpl_resv2; /* reserved - must be zero */ + __u8 rpl_llen[3]; /* list length */ + __u8 rpl_resv3; /* reserved - must be zero */ + __u8 rpl_index[3]; /* starting index */ + struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */ +}; + +/* + * Link Error Status Block. + */ +struct fc_els_lesb { + __be32 lesb_link_fail; /* link failure count */ + __be32 lesb_sync_loss; /* loss of synchronization count */ + __be32 lesb_sig_loss; /* loss of signal count */ + __be32 lesb_prim_err; /* primitive sequence error count */ + __be32 lesb_inv_word; /* invalid transmission word count */ + __be32 lesb_inv_crc; /* invalid CRC count */ +}; + +/* + * ELS RPS - Read Port Status Block request. + */ +struct fc_els_rps { + __u8 rps_cmd; /* command */ + __u8 rps_resv[2]; /* reserved - must be zero */ + __u8 rps_flag; /* flag - see below */ + __be64 rps_port_spec; /* port selection */ +}; + +enum fc_els_rps_flag { + FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */ + FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */ + FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */ +}; + +/* + * ELS RPS LS_ACC response. + */ +struct fc_els_rps_resp { + __u8 rps_cmd; /* command - LS_ACC */ + __u8 rps_resv[2]; /* reserved - must be zero */ + __u8 rps_flag; /* flag - see below */ + __u8 rps_resv2[2]; /* reserved */ + __be16 rps_status; /* port status - see below */ + struct fc_els_lesb rps_lesb; /* link error status block */ +}; + +enum fc_els_rps_resp_flag { + FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */ +}; + +enum fc_els_rps_resp_status { + FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */ + FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */ + FC_ELS_RPS_FAB = 1 << 3, /* fabric present */ + FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */ + FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */ + FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */ +}; + +/* + * ELS LIRR - Link Incident Record Registration request. + */ +struct fc_els_lirr { + __u8 lirr_cmd; /* command */ + __u8 lirr_resv[3]; /* reserved - must be zero */ + __u8 lirr_func; /* registration function */ + __u8 lirr_fmt; /* FC-4 type of RLIR requested */ + __u8 lirr_resv2[2]; /* reserved - must be zero */ +}; + +enum fc_els_lirr_func { + ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */ + ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */ + ELS_LIRR_CLEAR = 0xff /* clear registration */ +}; + +/* + * ELS SRL - Scan Remote Loop request. + */ +struct fc_els_srl { + __u8 srl_cmd; /* command */ + __u8 srl_resv[3]; /* reserved - must be zero */ + __u8 srl_flag; /* flag - see below */ + __u8 srl_flag_param[3]; /* flag parameter */ +}; + +enum fc_els_srl_flag { + FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */ + FC_ELS_SRL_ONE = 0x01, /* scan specified loop */ + FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */ + FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */ +}; + +/* + * ELS RLS - Read Link Error Status Block request. + */ +struct fc_els_rls { + __u8 rls_cmd; /* command */ + __u8 rls_resv[4]; /* reserved - must be zero */ + __u8 rls_port_id[3]; /* port ID */ +}; + +/* + * ELS RLS LS_ACC Response. + */ +struct fc_els_rls_resp { + __u8 rls_cmd; /* ELS_LS_ACC */ + __u8 rls_resv[3]; /* reserved - must be zero */ + struct fc_els_lesb rls_lesb; /* link error status block */ +}; + +/* + * ELS RLIR - Registered Link Incident Report. + * This is followed by the CLIR and the CLID, described below. + */ +struct fc_els_rlir { + __u8 rlir_cmd; /* command */ + __u8 rlir_resv[3]; /* reserved - must be zero */ + __u8 rlir_fmt; /* format (FC4-type if type specific) */ + __u8 rlir_clr_len; /* common link incident record length */ + __u8 rlir_cld_len; /* common link incident desc. length */ + __u8 rlir_slr_len; /* spec. link incident record length */ +}; + +/* + * CLIR - Common Link Incident Record Data. - Sent via RLIR. + */ +struct fc_els_clir { + __be64 clir_wwpn; /* incident port name */ + __be64 clir_wwnn; /* incident port node name */ + __u8 clir_port_type; /* incident port type */ + __u8 clir_port_id[3]; /* incident port ID */ + + __be64 clir_conn_wwpn; /* connected port name */ + __be64 clir_conn_wwnn; /* connected node name */ + __be64 clir_fab_name; /* fabric name */ + __be32 clir_phys_port; /* physical port number */ + __be32 clir_trans_id; /* transaction ID */ + __u8 clir_resv[3]; /* reserved */ + __u8 clir_ts_fmt; /* time stamp format */ + __be64 clir_timestamp; /* time stamp */ +}; + +/* + * CLIR clir_ts_fmt - time stamp format values. + */ +enum fc_els_clir_ts_fmt { + ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */ + ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */ + ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */ +}; + +/* + * Common Link Incident Descriptor - sent via RLIR. + */ +struct fc_els_clid { + __u8 clid_iq; /* incident qualifier flags */ + __u8 clid_ic; /* incident code */ + __be16 clid_epai; /* domain/area of ISL */ +}; + +/* + * CLID incident qualifier flags. + */ +enum fc_els_clid_iq { + ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */ + ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */ + ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */ + ELS_CLID_SEV_INFO = 0x00, /* report is informational */ + ELS_CLID_SEV_INOP = 0x08, /* link not operational */ + ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */ + ELS_CLID_LASER = 0x02, /* subassembly is a laser */ + ELS_CLID_FRU = 0x01, /* format can identify a FRU */ +}; + +/* + * CLID incident code. + */ +enum fc_els_clid_ic { + ELS_CLID_IC_IMPL = 1, /* implicit incident */ + ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */ + ELS_CLID_IC_LOS = 3, /* loss of synch or signal */ + ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */ + ELS_CLID_IC_PST = 5, /* primitive sequence timeout */ + ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */ + ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */ + ELS_CLID_IC_LIP = 8, /* receiving LIP */ +}; + +#endif /* _FC_ELS_H_ */ diff --git a/include/scsi/fc/fc_encaps.h b/include/scsi/fc/fc_encaps.h new file mode 100644 index 0000000..f180c3e --- /dev/null +++ b/include/scsi/fc/fc_encaps.h @@ -0,0 +1,138 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ +#ifndef _FC_ENCAPS_H_ +#define _FC_ENCAPS_H_ + +/* + * Protocol definitions from RFC 3643 - Fibre Channel Frame Encapsulation. + * + * Note: The frame length field is the number of 32-bit words in + * the encapsulation including the fcip_encaps_header, CRC and EOF words. + * The minimum frame length value in bytes is (32 + 24 + 4 + 4) * 4 = 64. + * The maximum frame length value in bytes is (32 + 24 + 2112 + 4 + 4) = 2172. + */ +#define FC_ENCAPS_MIN_FRAME_LEN 64 /* min frame len (bytes) (see above) */ +#define FC_ENCAPS_MAX_FRAME_LEN (FC_ENCAPS_MIN_FRAME_LEN + FC_MAX_PAYLOAD) + +#define FC_ENCAPS_VER 1 /* current version number */ + +struct fc_encaps_hdr { + __u8 fc_proto; /* protocol number */ + __u8 fc_ver; /* version of encapsulation */ + __u8 fc_proto_n; /* ones complement of protocol */ + __u8 fc_ver_n; /* ones complement of version */ + + unsigned char fc_proto_data[8]; /* protocol specific data */ + + __be16 fc_len_flags; /* 10-bit length/4 w/ 6 flag bits */ + __be16 fc_len_flags_n; /* ones complement of length / flags */ + + /* + * Offset 0x10 + */ + __be32 fc_time[2]; /* time stamp: seconds and fraction */ + __be32 fc_crc; /* CRC */ + __be32 fc_sof; /* start of frame (see FC_SOF below) */ + + /* 0x20 - FC frame content followed by EOF word */ +}; + +#define FCIP_ENCAPS_HDR_LEN 0x20 /* expected length for asserts */ + +/* + * Macro's for making redundant copies of EOF and SOF. + */ +#define FC_XY(x, y) ((((x) & 0xff) << 8) | ((y) & 0xff)) +#define FC_XYXY(x, y) ((FCIP_XY(x, y) << 16) | FCIP_XY(x, y)) +#define FC_XYNN(x, y) (FCIP_XYXY(x, y) ^ 0xffff) + +#define FC_SOF_ENCODE(n) FC_XYNN(n, n) +#define FC_EOF_ENCODE(n) FC_XYNN(n, n) + +/* + * SOF / EOF bytes. + */ +enum fc_sof { + FC_SOF_F = 0x28, /* fabric */ + FC_SOF_I4 = 0x29, /* initiate class 4 */ + FC_SOF_I2 = 0x2d, /* initiate class 2 */ + FC_SOF_I3 = 0x2e, /* initiate class 3 */ + FC_SOF_N4 = 0x31, /* normal class 4 */ + FC_SOF_N2 = 0x35, /* normal class 2 */ + FC_SOF_N3 = 0x36, /* normal class 3 */ + FC_SOF_C4 = 0x39, /* activate class 4 */ +} __attribute__((packed)); + +enum fc_eof { + FC_EOF_N = 0x41, /* normal (not last frame of seq) */ + FC_EOF_T = 0x42, /* terminate (last frame of sequence) */ + FC_EOF_RT = 0x44, + FC_EOF_DT = 0x46, /* disconnect-terminate class-1 */ + FC_EOF_NI = 0x49, /* normal-invalid */ + FC_EOF_DTI = 0x4e, /* disconnect-terminate-invalid */ + FC_EOF_RTI = 0x4f, + FC_EOF_A = 0x50, /* abort */ +} __attribute__((packed)); + +#define FC_SOF_CLASS_MASK 0x06 /* mask for class of service in SOF */ + +/* + * Define classes in terms of the SOF code (initial). + */ +enum fc_class { + FC_CLASS_NONE = 0, /* software value indicating no class */ + FC_CLASS_2 = FC_SOF_I2, + FC_CLASS_3 = FC_SOF_I3, + FC_CLASS_4 = FC_SOF_I4, + FC_CLASS_F = FC_SOF_F, +}; + +/* + * Determine whether SOF code indicates the need for a BLS ACK. + */ +static inline int fc_sof_needs_ack(enum fc_sof sof) +{ + return (~sof) & 0x02; /* true for class 1, 2, 4, 6, or F */ +} + +/* + * Given an fc_class, return the normal (non-initial) SOF value. + */ +static inline enum fc_sof fc_sof_normal(enum fc_class class) +{ + return class + FC_SOF_N3 - FC_SOF_I3; /* diff is always 8 */ +} + +/* + * Compute class from SOF value. + */ +static inline enum fc_class fc_sof_class(enum fc_sof sof) +{ + return (sof & 0x7) | FC_SOF_F; +} + +/* + * Determine whether SOF is for the initial frame of a sequence. + */ +static inline int fc_sof_is_init(enum fc_sof sof) +{ + return sof < 0x30; +} + +#endif /* _FC_ENCAPS_H_ */ diff --git a/include/scsi/fc/fc_fc2.h b/include/scsi/fc/fc_fc2.h new file mode 100644 index 0000000..cff8a8c --- /dev/null +++ b/include/scsi/fc/fc_fc2.h @@ -0,0 +1,124 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FC2_H_ +#define _FC_FC2_H_ + +/* + * Fibre Channel Exchanges and Sequences. + */ +#ifndef PACKED +#define PACKED __attribute__ ((__packed__)) +#endif /* PACKED */ + + +/* + * Sequence Status Block. + * This format is set by the FC-FS standard and is sent over the wire. + * Note that the fields aren't all naturally aligned. + */ +struct fc_ssb { + __u8 ssb_seq_id; /* sequence ID */ + __u8 _ssb_resvd; + __be16 ssb_low_seq_cnt; /* lowest SEQ_CNT */ + + __be16 ssb_high_seq_cnt; /* highest SEQ_CNT */ + __be16 ssb_s_stat; /* sequence status flags */ + + __be16 ssb_err_seq_cnt; /* error SEQ_CNT */ + __u8 ssb_fh_cs_ctl; /* frame header CS_CTL */ + __be16 ssb_fh_ox_id; /* frame header OX_ID */ + __be16 ssb_rx_id; /* responder's exchange ID */ + __u8 _ssb_resvd2[2]; +} PACKED; + +/* + * The SSB should be 17 bytes. Since it's layout is somewhat strange, + * we define the size here so that code can ASSERT that the size comes out + * correct. + */ +#define FC_SSB_SIZE 17 /* length of fc_ssb for assert */ + +/* + * ssb_s_stat - flags from FC-FS-2 T11/1619-D Rev 0.90. + */ +#define SSB_ST_RESP (1 << 15) /* sequence responder */ +#define SSB_ST_ACTIVE (1 << 14) /* sequence is active */ +#define SSB_ST_ABNORMAL (1 << 12) /* abnormal ending condition */ + +#define SSB_ST_REQ_MASK (3 << 10) /* ACK, abort sequence condition */ +#define SSB_ST_REQ_CONT (0 << 10) +#define SSB_ST_REQ_ABORT (1 << 10) +#define SSB_ST_REQ_STOP (2 << 10) +#define SSB_ST_REQ_RETRANS (3 << 10) + +#define SSB_ST_ABTS (1 << 9) /* ABTS protocol completed */ +#define SSB_ST_RETRANS (1 << 8) /* retransmission completed */ +#define SSB_ST_TIMEOUT (1 << 7) /* sequence timed out by recipient */ +#define SSB_ST_P_RJT (1 << 6) /* P_RJT transmitted */ + +#define SSB_ST_CLASS_BIT 4 /* class of service field LSB */ +#define SSB_ST_CLASS_MASK 3 /* class of service mask */ +#define SSB_ST_ACK (1 << 3) /* ACK (EOFt or EOFdt) transmitted */ + +/* + * Exchange Status Block. + * This format is set by the FC-FS standard and is sent over the wire. + * Note that the fields aren't all naturally aligned. + */ +struct fc_esb { + __u8 esb_cs_ctl; /* CS_CTL for frame header */ + __be16 esb_ox_id; /* originator exchange ID */ + __be16 esb_rx_id; /* responder exchange ID */ + __be32 esb_orig_fid; /* fabric ID of originator */ + __be32 esb_resp_fid; /* fabric ID of responder */ + __be32 esb_e_stat; /* status */ + __u8 _esb_resvd[4]; + __u8 esb_service_params[112]; /* TBD */ + __u8 esb_seq_status[8]; /* sequence statuses, 8 bytes each */ +} __attribute__((packed));; + + +/* + * Define expected size for ASSERTs. + * See comments on FC_SSB_SIZE. + */ +#define FC_ESB_SIZE (1 + 5*4 + 112 + 8) /* expected size */ + +/* + * esb_e_stat - flags from FC-FS-2 T11/1619-D Rev 0.90. + */ +#define ESB_ST_RESP (1 << 31) /* responder to exchange */ +#define ESB_ST_SEQ_INIT (1 << 30) /* port holds sequence initiaive */ +#define ESB_ST_COMPLETE (1 << 29) /* exchange is complete */ +#define ESB_ST_ABNORMAL (1 << 28) /* abnormal ending condition */ +#define ESB_ST_REC_QUAL (1 << 26) /* recovery qualifier active */ + +#define ESB_ST_ERRP_BIT 24 /* LSB for error policy */ +#define ESB_ST_ERRP_MASK (3 << 24) /* mask for error policy */ +#define ESB_ST_ERRP_MULT (0 << 24) /* abort, discard multiple sequences */ +#define ESB_ST_ERRP_SING (1 << 24) /* abort, discard single sequence */ +#define ESB_ST_ERRP_INF (2 << 24) /* process with infinite buffers */ +#define ESB_ST_ERRP_IMM (3 << 24) /* discard mult. with immed. retran. */ + +#define ESB_ST_OX_ID_INVL (1 << 23) /* originator XID invalid */ +#define ESB_ST_RX_ID_INVL (1 << 22) /* responder XID invalid */ +#define ESB_ST_PRI_INUSE (1 << 21) /* priority / preemption in use */ + +#endif /* _FC_FC2_H_ */ diff --git a/include/scsi/fc/fc_fcoe.h b/include/scsi/fc/fc_fcoe.h new file mode 100644 index 0000000..57aaa8f --- /dev/null +++ b/include/scsi/fc/fc_fcoe.h @@ -0,0 +1,114 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FCOE_H_ +#define _FC_FCOE_H_ + +/* + * FCoE - Fibre Channel over Ethernet. + */ + +/* + * The FCoE ethertype eventually goes in net/if_ether.h. + */ +#ifndef ETH_P_FCOE +#define ETH_P_FCOE 0x8906 /* FCOE ether type */ +#endif + +#ifndef ETH_P_8021Q +#define ETH_P_8021Q 0x8100 +#endif + +/* + * FC_FCOE_OUI hasn't been standardized yet. XXX TBD. + */ +#ifndef FC_FCOE_OUI +#define FC_FCOE_OUI 0x0efc00 /* upper 24 bits of FCOE dest MAC TBD */ +#endif + +/* + * The destination MAC address for the fabric login may get a different OUI. + * This isn't standardized yet. + */ +#ifndef FC_FCOE_FLOGI_MAC +/* gateway MAC - TBD */ +#define FC_FCOE_FLOGI_MAC { 0x0e, 0xfc, 0x00, 0xff, 0xff, 0xfe } +#endif + +#define FC_FCOE_VER 0 /* version */ + +/* + * Ethernet Addresses based on FC S_ID and D_ID. + * Generated by FC_FCOE_OUI | S_ID/D_ID + */ +#define FC_FCOE_ENCAPS_ID(n) (((u64) FC_FCOE_OUI << 24) | (n)) +#define FC_FCOE_DECAPS_ID(n) ((n) >> 24) + +/* + * FCoE frame header - 14 bytes + * + * This is the August 2007 version of the FCoE header as defined by T11. + * This follows the VLAN header, which includes the ethertype. + */ +struct fcoe_hdr { + __u8 fcoe_ver; /* version field - upper 4 bits */ + __u8 fcoe_resvd[12]; /* reserved - send zero and ignore */ + __u8 fcoe_sof; /* start of frame per RFC 3643 */ +}; + +#define FC_FCOE_DECAPS_VER(hp) ((hp)->fcoe_ver >> 4) +#define FC_FCOE_ENCAPS_VER(hp, ver) ((hp)->fcoe_ver = (ver) << 4) + +/* + * FCoE CRC & EOF - 8 bytes. + */ +struct fcoe_crc_eof { + __le32 fcoe_crc32; /* CRC for FC packet */ + __u8 fcoe_eof; /* EOF from RFC 3643 */ + __u8 fcoe_resvd[3]; /* reserved - send zero and ignore */ +} __attribute__((packed)); + +/* + * Minimum FCoE + FC header length + * 14 bytes FCoE header + 24 byte FC header = 38 bytes + */ +#define FCOE_HEADER_LEN 38 + +/* + * Minimum FCoE frame size + * 14 bytes FCoE header + 24 byte FC header + 8 byte FCoE trailer = 46 bytes + */ +#define FCOE_MIN_FRAME 46 + +/* + * fc_fcoe_set_mac - Store OUI + DID into MAC address field. + * @mac: mac address to be set + * @did: fc dest id to use + */ +static inline void fc_fcoe_set_mac(u8 *mac, u8 *did) +{ + mac[0] = (u8) (FC_FCOE_OUI >> 16); + mac[1] = (u8) (FC_FCOE_OUI >> 8); + mac[2] = (u8) FC_FCOE_OUI; + mac[3] = did[0]; + mac[4] = did[1]; + mac[5] = did[2]; +} + +#endif /* _FC_FCOE_H_ */ diff --git a/include/scsi/fc/fc_fcp.h b/include/scsi/fc/fc_fcp.h new file mode 100644 index 0000000..5d38f19 --- /dev/null +++ b/include/scsi/fc/fc_fcp.h @@ -0,0 +1,199 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FCP_H_ +#define _FC_FCP_H_ + +/* + * Fibre Channel Protocol for SCSI. + * From T10 FCP-3, T10 project 1560-D Rev 4, Sept. 13, 2005. + */ + +/* + * fc/fs.h defines FC_TYPE_FCP. + */ + +/* + * Service parameter page parameters (word 3 bits) for Process Login. + */ +#define FCP_SPPF_TASK_RETRY_ID 0x0200 /* task retry ID requested */ +#define FCP_SPPF_RETRY 0x0100 /* retry supported */ +#define FCP_SPPF_CONF_COMPL 0x0080 /* confirmed completion allowed */ +#define FCP_SPPF_OVLY_ALLOW 0x0040 /* data overlay allowed */ +#define FCP_SPPF_INIT_FCN 0x0020 /* initiator function */ +#define FCP_SPPF_TARG_FCN 0x0010 /* target function */ +#define FCP_SPPF_RD_XRDY_DIS 0x0002 /* disable XFER_RDY for reads */ +#define FCP_SPPF_WR_XRDY_DIS 0x0001 /* disable XFER_RDY for writes */ + +/* + * FCP_CMND IU Payload. + */ +struct fcp_cmnd { + __u8 fc_lun[8]; /* logical unit number */ + __u8 fc_cmdref; /* commmand reference number */ + __u8 fc_pri_ta; /* priority and task attribute */ + __u8 fc_tm_flags; /* task management flags */ + __u8 fc_flags; /* additional len & flags */ + __u8 fc_cdb[16]; /* base CDB */ + __be32 fc_dl; /* data length (must follow fc_cdb) */ +}; + +#define FCP_CMND_LEN 32 /* expected length of structure */ + +struct fcp_cmnd32 { + __u8 fc_lun[8]; /* logical unit number */ + __u8 fc_cmdref; /* commmand reference number */ + __u8 fc_pri_ta; /* priority and task attribute */ + __u8 fc_tm_flags; /* task management flags */ + __u8 fc_flags; /* additional len & flags */ + __u8 fc_cdb[32]; /* base CDB */ + __be32 fc_dl; /* data length (must follow fc_cdb) */ +}; + +#define FCP_CMND32_LEN 48 /* expected length of structure */ +#define FCP_CMND32_ADD_LEN (16 / 4) /* Additional cdb length */ + +/* + * fc_pri_ta. + */ +#define FCP_PTA_SIMPLE 0 /* simple task attribute */ +#define FCP_PTA_HEADQ 1 /* head of queue task attribute */ +#define FCP_PTA_ORDERED 2 /* ordered task attribute */ +#define FCP_PTA_ACA 4 /* auto. contigent allegiance */ +#define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */ +#define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */ + +/* + * fc_tm_flags - task management flags field. + */ +#define FCP_TMF_CLR_ACA 0x40 /* clear ACA condition */ +#define FCP_TMF_LUN_RESET 0x10 /* logical unit reset task management */ +#define FCP_TMF_CLR_TASK_SET 0x04 /* clear task set */ +#define FCP_TMF_ABT_TASK_SET 0x02 /* abort task set */ + +/* + * fc_flags. + * Bits 7:2 are the additional FCP_CDB length / 4. + */ +#define FCP_CFL_LEN_MASK 0xfc /* mask for additional length */ +#define FCP_CFL_LEN_SHIFT 2 /* shift bits for additional length */ +#define FCP_CFL_RDDATA 0x02 /* read data */ +#define FCP_CFL_WRDATA 0x01 /* write data */ + +/* + * FCP_TXRDY IU - transfer ready payload. + */ +struct fcp_txrdy { + __be32 ft_data_ro; /* data relative offset */ + __be32 ft_burst_len; /* burst length */ + __u8 _ft_resvd[4]; /* reserved */ +}; + +#define FCP_TXRDY_LEN 12 /* expected length of structure */ + +/* + * FCP_RESP IU - response payload. + * + * The response payload comes in three parts: the flags/status, the + * sense/response lengths and the sense data/response info section. + * + * From FCP3r04, note 6 of section 9.5.13: + * + * Some early implementations presented the FCP_RSP IU without the FCP_RESID, + * FCP_SNS_LEN, and FCP_RSP_LEN fields if the FCP_RESID_UNDER, FCP_RESID_OVER, + * FCP_SNS_LEN_VALID, and FCP_RSP_LEN_VALID bits were all set to zero. This + * non-standard behavior should be tolerated. + * + * All response frames will always contain the fcp_resp template. Some + * will also include the fcp_resp_len template. + */ +struct fcp_resp { + __u8 _fr_resvd[8]; /* reserved */ + __be16 fr_retry_delay; /* retry delay timer */ + __u8 fr_flags; /* flags */ + __u8 fr_status; /* SCSI status code */ +}; + +#define FCP_RESP_LEN 12 /* expected length of structure */ + +struct fcp_resp_ext { + __be32 fr_resid; /* Residual value */ + __be32 fr_sns_len; /* SCSI Sense length */ + __be32 fr_rsp_len; /* Response Info length */ + + /* + * Optionally followed by RSP info and/or SNS info and/or + * bidirectional read residual length, if any. + */ +}; + +#define FCP_RESP_EXT_LEN 12 /* expected length of the structure */ + +struct fcp_resp_rsp_info { + __u8 _fr_resvd[3]; /* reserved */ + __u8 rsp_code; /* Response Info Code */ + __u8 _fr_resvd2[4]; /* reserved */ +}; + +struct fcp_resp_with_ext { + struct fcp_resp resp; + struct fcp_resp_ext ext; +}; + +#define FCP_RESP_WITH_EXT (FCP_RESP_LEN + FCP_RESP_EXT_LEN) + +/* + * fr_flags. + */ +#define FCP_BIDI_RSP 0x80 /* bidirectional read response */ +#define FCP_BIDI_READ_UNDER 0x40 /* bidir. read less than requested */ +#define FCP_BIDI_READ_OVER 0x20 /* DL insufficient for full transfer */ +#define FCP_CONF_REQ 0x10 /* confirmation requested */ +#define FCP_RESID_UNDER 0x08 /* transfer shorter than expected */ +#define FCP_RESID_OVER 0x04 /* DL insufficient for full transfer */ +#define FCP_SNS_LEN_VAL 0x02 /* SNS_LEN field is valid */ +#define FCP_RSP_LEN_VAL 0x01 /* RSP_LEN field is valid */ + +/* + * rsp_codes + */ +enum fcp_resp_rsp_codes { + FCP_TMF_CMPL = 0, + FCP_DATA_LEN_INVALID = 1, + FCP_CMND_FIELDS_INVALID = 2, + FCP_DATA_PARAM_MISMATCH = 3, + FCP_TMF_REJECTED = 4, + FCP_TMF_FAILED = 5, + FCP_TMF_INVALID_LUN = 9, +}; + +/* + * FCP SRR Link Service request - Sequence Retransmission Request. + */ +struct fcp_srr { + __u8 srr_op; /* opcode ELS_SRR */ + __u8 srr_resvd[3]; /* opcode / reserved - must be zero */ + __be16 srr_ox_id; /* OX_ID of failed command */ + __be16 srr_rx_id; /* RX_ID of failed command */ + __be32 srr_rel_off; /* relative offset */ + __u8 srr_r_ctl; /* r_ctl for the information unit */ + __u8 srr_resvd2[3]; /* reserved */ +}; + +#endif /* _FC_FCP_H_ */ diff --git a/include/scsi/fc/fc_fs.h b/include/scsi/fc/fc_fs.h new file mode 100644 index 0000000..3e4801d --- /dev/null +++ b/include/scsi/fc/fc_fs.h @@ -0,0 +1,340 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FS_H_ +#define _FC_FS_H_ + +/* + * Fibre Channel Framing and Signalling definitions. + * From T11 FC-FS-2 Rev 0.90 - 9 August 2005. + */ + +/* + * Frame header + */ +struct fc_frame_header { + __u8 fh_r_ctl; /* routing control */ + __u8 fh_d_id[3]; /* Destination ID */ + + __u8 fh_cs_ctl; /* class of service control / pri */ + __u8 fh_s_id[3]; /* Source ID */ + + __u8 fh_type; /* see enum fc_fh_type below */ + __u8 fh_f_ctl[3]; /* frame control */ + + __u8 fh_seq_id; /* sequence ID */ + __u8 fh_df_ctl; /* data field control */ + __be16 fh_seq_cnt; /* sequence count */ + + __be16 fh_ox_id; /* originator exchange ID */ + __be16 fh_rx_id; /* responder exchange ID */ + __be32 fh_parm_offset; /* parameter or relative offset */ +}; + +#define FC_FRAME_HEADER_LEN 24 /* expected length of structure */ + +#define FC_MAX_PAYLOAD 2112U /* max payload length in bytes */ +#define FC_MIN_MAX_PAYLOAD 256U /* lower limit on max payload */ + +#define FC_MAX_FRAME (FC_MAX_PAYLOAD + FC_FRAME_HEADER_LEN) +#define FC_MIN_MAX_FRAME (FC_MIN_MAX_PAYLOAD + FC_FRAME_HEADER_LEN) + +/* + * fh_r_ctl - Routing control definitions. + */ + /* + * FC-4 device_data. + */ +enum fc_rctl { + FC_RCTL_DD_UNCAT = 0x00, /* uncategorized information */ + FC_RCTL_DD_SOL_DATA = 0x01, /* solicited data */ + FC_RCTL_DD_UNSOL_CTL = 0x02, /* unsolicited control */ + FC_RCTL_DD_SOL_CTL = 0x03, /* solicited control or reply */ + FC_RCTL_DD_UNSOL_DATA = 0x04, /* unsolicited data */ + FC_RCTL_DD_DATA_DESC = 0x05, /* data descriptor */ + FC_RCTL_DD_UNSOL_CMD = 0x06, /* unsolicited command */ + FC_RCTL_DD_CMD_STATUS = 0x07, /* command status */ + +#define FC_RCTL_ILS_REQ FC_RCTL_DD_UNSOL_CTL /* ILS request */ +#define FC_RCTL_ILS_REP FC_RCTL_DD_SOL_CTL /* ILS reply */ + + /* + * Extended Link_Data + */ + FC_RCTL_ELS_REQ = 0x22, /* extended link services request */ + FC_RCTL_ELS_REP = 0x23, /* extended link services reply */ + FC_RCTL_ELS4_REQ = 0x32, /* FC-4 ELS request */ + FC_RCTL_ELS4_REP = 0x33, /* FC-4 ELS reply */ + /* + * Optional Extended Headers + */ + FC_RCTL_VFTH = 0x50, /* virtual fabric tagging header */ + FC_RCTL_IFRH = 0x51, /* inter-fabric routing header */ + FC_RCTL_ENCH = 0x52, /* encapsulation header */ + /* + * Basic Link Services fh_r_ctl values. + */ + FC_RCTL_BA_NOP = 0x80, /* basic link service NOP */ + FC_RCTL_BA_ABTS = 0x81, /* basic link service abort */ + FC_RCTL_BA_RMC = 0x82, /* remove connection */ + FC_RCTL_BA_ACC = 0x84, /* basic accept */ + FC_RCTL_BA_RJT = 0x85, /* basic reject */ + FC_RCTL_BA_PRMT = 0x86, /* dedicated connection preempted */ + /* + * Link Control Information. + */ + FC_RCTL_ACK_1 = 0xc0, /* acknowledge_1 */ + FC_RCTL_ACK_0 = 0xc1, /* acknowledge_0 */ + FC_RCTL_P_RJT = 0xc2, /* port reject */ + FC_RCTL_F_RJT = 0xc3, /* fabric reject */ + FC_RCTL_P_BSY = 0xc4, /* port busy */ + FC_RCTL_F_BSY = 0xc5, /* fabric busy to data frame */ + FC_RCTL_F_BSYL = 0xc6, /* fabric busy to link control frame */ + FC_RCTL_LCR = 0xc7, /* link credit reset */ + FC_RCTL_END = 0xc9, /* end */ +}; + /* incomplete list of definitions */ + +/* + * R_CTL names initializer. + * Please keep this matching the above definitions. + */ +#define FC_RCTL_NAMES_INIT { \ + [FC_RCTL_DD_UNCAT] = "uncat", \ + [FC_RCTL_DD_SOL_DATA] = "sol data", \ + [FC_RCTL_DD_UNSOL_CTL] = "unsol ctl", \ + [FC_RCTL_DD_SOL_CTL] = "sol ctl/reply", \ + [FC_RCTL_DD_UNSOL_DATA] = "unsol data", \ + [FC_RCTL_DD_DATA_DESC] = "data desc", \ + [FC_RCTL_DD_UNSOL_CMD] = "unsol cmd", \ + [FC_RCTL_DD_CMD_STATUS] = "cmd status", \ + [FC_RCTL_ELS_REQ] = "ELS req", \ + [FC_RCTL_ELS_REP] = "ELS rep", \ + [FC_RCTL_ELS4_REQ] = "FC-4 ELS req", \ + [FC_RCTL_ELS4_REP] = "FC-4 ELS rep", \ + [FC_RCTL_BA_NOP] = "BLS NOP", \ + [FC_RCTL_BA_ABTS] = "BLS abort", \ + [FC_RCTL_BA_RMC] = "BLS remove connection", \ + [FC_RCTL_BA_ACC] = "BLS accept", \ + [FC_RCTL_BA_RJT] = "BLS reject", \ + [FC_RCTL_BA_PRMT] = "BLS dedicated connection preempted", \ + [FC_RCTL_ACK_1] = "LC ACK_1", \ + [FC_RCTL_ACK_0] = "LC ACK_0", \ + [FC_RCTL_P_RJT] = "LC port reject", \ + [FC_RCTL_F_RJT] = "LC fabric reject", \ + [FC_RCTL_P_BSY] = "LC port busy", \ + [FC_RCTL_F_BSY] = "LC fabric busy to data frame", \ + [FC_RCTL_F_BSYL] = "LC fabric busy to link control frame",\ + [FC_RCTL_LCR] = "LC link credit reset", \ + [FC_RCTL_END] = "LC end", \ +} + +/* + * Well-known fabric addresses. + */ +enum fc_well_known_fid { + FC_FID_BCAST = 0xffffff, /* broadcast */ + FC_FID_FLOGI = 0xfffffe, /* fabric login */ + FC_FID_FCTRL = 0xfffffd, /* fabric controller */ + FC_FID_DIR_SERV = 0xfffffc, /* directory server */ + FC_FID_TIME_SERV = 0xfffffb, /* time server */ + FC_FID_MGMT_SERV = 0xfffffa, /* management server */ + FC_FID_QOS = 0xfffff9, /* QoS Facilitator */ + FC_FID_ALIASES = 0xfffff8, /* alias server (FC-PH2) */ + FC_FID_SEC_KEY = 0xfffff7, /* Security key dist. server */ + FC_FID_CLOCK = 0xfffff6, /* clock synch server */ + FC_FID_MCAST_SERV = 0xfffff5, /* multicast server */ +}; + +#define FC_FID_WELL_KNOWN_MAX 0xffffff /* highest well-known fabric ID */ +#define FC_FID_WELL_KNOWN_BASE 0xfffff5 /* start of well-known fabric ID */ + +/* + * Other well-known addresses, outside the above contiguous range. + */ +#define FC_FID_DOM_MGR 0xfffc00 /* domain manager base */ + +/* + * Fabric ID bytes. + */ +#define FC_FID_DOMAIN 0 +#define FC_FID_PORT 1 +#define FC_FID_LINK 2 + +/* + * fh_type codes + */ +enum fc_fh_type { + FC_TYPE_BLS = 0x00, /* basic link service */ + FC_TYPE_ELS = 0x01, /* extended link service */ + FC_TYPE_IP = 0x05, /* IP over FC, RFC 4338 */ + FC_TYPE_FCP = 0x08, /* SCSI FCP */ + FC_TYPE_CT = 0x20, /* Fibre Channel Services (FC-CT) */ + FC_TYPE_ILS = 0x22, /* internal link service */ +}; + +/* + * FC_TYPE names initializer. + * Please keep this matching the above definitions. + */ +#define FC_TYPE_NAMES_INIT { \ + [FC_TYPE_BLS] = "BLS", \ + [FC_TYPE_ELS] = "ELS", \ + [FC_TYPE_IP] = "IP", \ + [FC_TYPE_FCP] = "FCP", \ + [FC_TYPE_CT] = "CT", \ + [FC_TYPE_ILS] = "ILS", \ +} + +/* + * Exchange IDs. + */ +#define FC_XID_UNKNOWN 0xffff /* unknown exchange ID */ +#define FC_XID_MIN 0x0 /* supported min exchange ID */ +#define FC_XID_MAX 0xfffe /* supported max exchange ID */ + +/* + * fh_f_ctl - Frame control flags. + */ +#define FC_FC_EX_CTX (1 << 23) /* sent by responder to exchange */ +#define FC_FC_SEQ_CTX (1 << 22) /* sent by responder to sequence */ +#define FC_FC_FIRST_SEQ (1 << 21) /* first sequence of this exchange */ +#define FC_FC_LAST_SEQ (1 << 20) /* last sequence of this exchange */ +#define FC_FC_END_SEQ (1 << 19) /* last frame of sequence */ +#define FC_FC_END_CONN (1 << 18) /* end of class 1 connection pending */ +#define FC_FC_RES_B17 (1 << 17) /* reserved */ +#define FC_FC_SEQ_INIT (1 << 16) /* transfer of sequence initiative */ +#define FC_FC_X_ID_REASS (1 << 15) /* exchange ID has been changed */ +#define FC_FC_X_ID_INVAL (1 << 14) /* exchange ID invalidated */ + +#define FC_FC_ACK_1 (1 << 12) /* 13:12 = 1: ACK_1 expected */ +#define FC_FC_ACK_N (2 << 12) /* 13:12 = 2: ACK_N expected */ +#define FC_FC_ACK_0 (3 << 12) /* 13:12 = 3: ACK_0 expected */ + +#define FC_FC_RES_B11 (1 << 11) /* reserved */ +#define FC_FC_RES_B10 (1 << 10) /* reserved */ +#define FC_FC_RETX_SEQ (1 << 9) /* retransmitted sequence */ +#define FC_FC_UNI_TX (1 << 8) /* unidirectional transmit (class 1) */ +#define FC_FC_CONT_SEQ(i) ((i) << 6) +#define FC_FC_ABT_SEQ(i) ((i) << 4) +#define FC_FC_REL_OFF (1 << 3) /* parameter is relative offset */ +#define FC_FC_RES2 (1 << 2) /* reserved */ +#define FC_FC_FILL(i) ((i) & 3) /* 1:0: bytes of trailing fill */ + +/* + * BA_ACC payload. + */ +struct fc_ba_acc { + __u8 ba_seq_id_val; /* SEQ_ID validity */ +#define FC_BA_SEQ_ID_VAL 0x80 + __u8 ba_seq_id; /* SEQ_ID of seq last deliverable */ + __u8 ba_resvd[2]; /* reserved */ + __be16 ba_ox_id; /* OX_ID for aborted seq or exch */ + __be16 ba_rx_id; /* RX_ID for aborted seq or exch */ + __be16 ba_low_seq_cnt; /* low SEQ_CNT of aborted seq */ + __be16 ba_high_seq_cnt; /* high SEQ_CNT of aborted seq */ +}; + +/* + * BA_RJT: Basic Reject payload. + */ +struct fc_ba_rjt { + __u8 br_resvd; /* reserved */ + __u8 br_reason; /* reason code */ + __u8 br_explan; /* reason explanation */ + __u8 br_vendor; /* vendor unique code */ +}; + +/* + * BA_RJT reason codes. + * From FS-2. + */ +enum fc_ba_rjt_reason { + FC_BA_RJT_NONE = 0, /* in software this means no reject */ + FC_BA_RJT_INVL_CMD = 0x01, /* invalid command code */ + FC_BA_RJT_LOG_ERR = 0x03, /* logical error */ + FC_BA_RJT_LOG_BUSY = 0x05, /* logical busy */ + FC_BA_RJT_PROTO_ERR = 0x07, /* protocol error */ + FC_BA_RJT_UNABLE = 0x09, /* unable to perform request */ + FC_BA_RJT_VENDOR = 0xff, /* vendor-specific (see br_vendor) */ +}; + +/* + * BA_RJT reason code explanations. + */ +enum fc_ba_rjt_explan { + FC_BA_RJT_EXP_NONE = 0x00, /* no additional expanation */ + FC_BA_RJT_INV_XID = 0x03, /* invalid OX_ID-RX_ID combination */ + FC_BA_RJT_ABT = 0x05, /* sequence aborted, no seq info */ +}; + +/* + * P_RJT or F_RJT: Port Reject or Fabric Reject parameter field. + */ +struct fc_pf_rjt { + __u8 rj_action; /* reserved */ + __u8 rj_reason; /* reason code */ + __u8 rj_resvd; /* reserved */ + __u8 rj_vendor; /* vendor unique code */ +}; + +/* + * P_RJT and F_RJT reject reason codes. + */ +enum fc_pf_rjt_reason { + FC_RJT_NONE = 0, /* non-reject (reserved by standard) */ + FC_RJT_INVL_DID = 0x01, /* invalid destination ID */ + FC_RJT_INVL_SID = 0x02, /* invalid source ID */ + FC_RJT_P_UNAV_T = 0x03, /* port unavailable, temporary */ + FC_RJT_P_UNAV = 0x04, /* port unavailable, permanent */ + FC_RJT_CLS_UNSUP = 0x05, /* class not supported */ + FC_RJT_DEL_USAGE = 0x06, /* delimiter usage error */ + FC_RJT_TYPE_UNSUP = 0x07, /* type not supported */ + FC_RJT_LINK_CTL = 0x08, /* invalid link control */ + FC_RJT_R_CTL = 0x09, /* invalid R_CTL field */ + FC_RJT_F_CTL = 0x0a, /* invalid F_CTL field */ + FC_RJT_OX_ID = 0x0b, /* invalid originator exchange ID */ + FC_RJT_RX_ID = 0x0c, /* invalid responder exchange ID */ + FC_RJT_SEQ_ID = 0x0d, /* invalid sequence ID */ + FC_RJT_DF_CTL = 0x0e, /* invalid DF_CTL field */ + FC_RJT_SEQ_CNT = 0x0f, /* invalid SEQ_CNT field */ + FC_RJT_PARAM = 0x10, /* invalid parameter field */ + FC_RJT_EXCH_ERR = 0x11, /* exchange error */ + FC_RJT_PROTO = 0x12, /* protocol error */ + FC_RJT_LEN = 0x13, /* incorrect length */ + FC_RJT_UNEXP_ACK = 0x14, /* unexpected ACK */ + FC_RJT_FAB_CLASS = 0x15, /* class unsupported by fabric entity */ + FC_RJT_LOGI_REQ = 0x16, /* login required */ + FC_RJT_SEQ_XS = 0x17, /* excessive sequences attempted */ + FC_RJT_EXCH_EST = 0x18, /* unable to establish exchange */ + FC_RJT_FAB_UNAV = 0x1a, /* fabric unavailable */ + FC_RJT_VC_ID = 0x1b, /* invalid VC_ID (class 4) */ + FC_RJT_CS_CTL = 0x1c, /* invalid CS_CTL field */ + FC_RJT_INSUF_RES = 0x1d, /* insuff. resources for VC (Class 4) */ + FC_RJT_INVL_CLS = 0x1f, /* invalid class of service */ + FC_RJT_PREEMT_RJT = 0x20, /* preemption request rejected */ + FC_RJT_PREEMT_DIS = 0x21, /* preemption not enabled */ + FC_RJT_MCAST_ERR = 0x22, /* multicast error */ + FC_RJT_MCAST_ET = 0x23, /* multicast error terminate */ + FC_RJT_PRLI_REQ = 0x24, /* process login required */ + FC_RJT_INVL_ATT = 0x25, /* invalid attachment */ + FC_RJT_VENDOR = 0xff, /* vendor specific reject */ +}; + +#endif /* _FC_FS_H_ */ diff --git a/include/scsi/fc/fc_gs.h b/include/scsi/fc/fc_gs.h new file mode 100644 index 0000000..ffab027 --- /dev/null +++ b/include/scsi/fc/fc_gs.h @@ -0,0 +1,93 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_GS_H_ +#define _FC_GS_H_ + +/* + * Fibre Channel Services - Common Transport. + * From T11.org FC-GS-2 Rev 5.3 November 1998. + */ + +struct fc_ct_hdr { + __u8 ct_rev; /* revision */ + __u8 ct_in_id[3]; /* N_Port ID of original requestor */ + __u8 ct_fs_type; /* type of fibre channel service */ + __u8 ct_fs_subtype; /* subtype */ + __u8 ct_options; + __u8 _ct_resvd1; + __be16 ct_cmd; /* command / response code */ + __be16 ct_mr_size; /* maximum / residual size */ + __u8 _ct_resvd2; + __u8 ct_reason; /* reject reason */ + __u8 ct_explan; /* reason code explanation */ + __u8 ct_vendor; /* vendor unique data */ +}; + +#define FC_CT_HDR_LEN 16 /* expected sizeof (struct fc_ct_hdr) */ + +enum fc_ct_rev { + FC_CT_REV = 1 /* common transport revision */ +}; + +/* + * ct_fs_type values. + */ +enum fc_ct_fs_type { + FC_FST_ALIAS = 0xf8, /* alias service */ + FC_FST_MGMT = 0xfa, /* management service */ + FC_FST_TIME = 0xfb, /* time service */ + FC_FST_DIR = 0xfc, /* directory service */ +}; + +/* + * ct_cmd: Command / response codes + */ +enum fc_ct_cmd { + FC_FS_RJT = 0x8001, /* reject */ + FC_FS_ACC = 0x8002, /* accept */ +}; + +/* + * FS_RJT reason codes. + */ +enum fc_ct_reason { + FC_FS_RJT_CMD = 0x01, /* invalid command code */ + FC_FS_RJT_VER = 0x02, /* invalid version level */ + FC_FS_RJT_LOG = 0x03, /* logical error */ + FC_FS_RJT_IUSIZ = 0x04, /* invalid IU size */ + FC_FS_RJT_BSY = 0x05, /* logical busy */ + FC_FS_RJT_PROTO = 0x07, /* protocol error */ + FC_FS_RJT_UNABL = 0x09, /* unable to perform command request */ + FC_FS_RJT_UNSUP = 0x0b, /* command not supported */ +}; + +/* + * FS_RJT reason code explanations. + */ +enum fc_ct_explan { + FC_FS_EXP_NONE = 0x00, /* no additional explanation */ + FC_FS_EXP_PID = 0x01, /* port ID not registered */ + FC_FS_EXP_PNAM = 0x02, /* port name not registered */ + FC_FS_EXP_NNAM = 0x03, /* node name not registered */ + FC_FS_EXP_COS = 0x04, /* class of service not registered */ + /* definitions not complete */ +}; + +#endif /* _FC_GS_H_ */ diff --git a/include/scsi/fc/fc_ns.h b/include/scsi/fc/fc_ns.h new file mode 100644 index 0000000..790d7b9 --- /dev/null +++ b/include/scsi/fc/fc_ns.h @@ -0,0 +1,159 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_NS_H_ +#define _FC_NS_H_ + +/* + * Fibre Channel Services - Name Service (dNS) + * From T11.org FC-GS-2 Rev 5.3 November 1998. + */ + +/* + * Common-transport sub-type for Name Server. + */ +#define FC_NS_SUBTYPE 2 /* fs_ct_hdr.ct_fs_subtype */ + +/* + * Name server Requests. + * Note: this is an incomplete list, some unused requests are omitted. + */ +enum fc_ns_req { + FC_NS_GA_NXT = 0x0100, /* get all next */ + FC_NS_GI_A = 0x0101, /* get identifiers - scope */ + FC_NS_GPN_ID = 0x0112, /* get port name by ID */ + FC_NS_GNN_ID = 0x0113, /* get node name by ID */ + FC_NS_GID_PN = 0x0121, /* get ID for port name */ + FC_NS_GID_NN = 0x0131, /* get IDs for node name */ + FC_NS_GID_FT = 0x0171, /* get IDs by FC4 type */ + FC_NS_GPN_FT = 0x0172, /* get port names by FC4 type */ + FC_NS_GID_PT = 0x01a1, /* get IDs by port type */ + FC_NS_RFT_ID = 0x0217, /* reg FC4 type for ID */ + FC_NS_RPN_ID = 0x0212, /* reg port name for ID */ + FC_NS_RNN_ID = 0x0213, /* reg node name for ID */ +}; + +/* + * Port type values. + */ +enum fc_ns_pt { + FC_NS_UNID_PORT = 0x00, /* unidentified */ + FC_NS_N_PORT = 0x01, /* N port */ + FC_NS_NL_PORT = 0x02, /* NL port */ + FC_NS_FNL_PORT = 0x03, /* F/NL port */ + FC_NS_NX_PORT = 0x7f, /* Nx port */ + FC_NS_F_PORT = 0x81, /* F port */ + FC_NS_FL_PORT = 0x82, /* FL port */ + FC_NS_E_PORT = 0x84, /* E port */ + FC_NS_B_PORT = 0x85, /* B port */ +}; + +/* + * Port type object. + */ +struct fc_ns_pt_obj { + __u8 pt_type; +}; + +/* + * Port ID object + */ +struct fc_ns_fid { + __u8 fp_flags; /* flags for responses only */ + __u8 fp_fid[3]; +}; + +/* + * fp_flags in port ID object, for responses only. + */ +#define FC_NS_FID_LAST 0x80 /* last object */ + +/* + * FC4-types object. + */ +#define FC_NS_TYPES 256 /* number of possible FC-4 types */ +#define FC_NS_BPW 32 /* bits per word in bitmap */ + +struct fc_ns_fts { + __be32 ff_type_map[FC_NS_TYPES / FC_NS_BPW]; /* bitmap of FC-4 types */ +}; + +/* + * GID_PT request. + */ +struct fc_ns_gid_pt { + __u8 fn_pt_type; + __u8 fn_domain_id_scope; + __u8 fn_area_id_scope; + __u8 fn_resvd; +}; + +/* + * GID_FT or GPN_FT request. + */ +struct fc_ns_gid_ft { + __u8 fn_resvd; + __u8 fn_domain_id_scope; + __u8 fn_area_id_scope; + __u8 fn_fc4_type; +}; + +/* + * GPN_FT response. + */ +struct fc_gpn_ft_resp { + __u8 fp_flags; /* see fp_flags definitions above */ + __u8 fp_fid[3]; /* port ID */ + __be32 fp_resvd; + __be64 fp_wwpn; /* port name */ +}; + +/* + * GID_PN request + */ +struct fc_ns_gid_pn { + __be64 fn_wwpn; /* port name */ +}; + +/* + * GID_PN response + */ +struct fc_gid_pn_resp { + __u8 fp_resvd; + __u8 fp_fid[3]; /* port ID */ +}; + +/* + * RFT_ID request - register FC-4 types for ID. + */ +struct fc_ns_rft_id { + struct fc_ns_fid fr_fid; /* port ID object */ + struct fc_ns_fts fr_fts; /* FC-4 types object */ +}; + +/* + * RPN_ID request - register port name for ID. + * RNN_ID request - register node name for ID. + */ +struct fc_ns_rn_id { + struct fc_ns_fid fr_fid; /* port ID object */ + __be64 fr_wwn; /* node name or port name */ +} __attribute__((__packed__)); + +#endif /* _FC_NS_H_ */ diff --git a/include/scsi/fc_encode.h b/include/scsi/fc_encode.h new file mode 100644 index 0000000..6300f55 --- /dev/null +++ b/include/scsi/fc_encode.h @@ -0,0 +1,309 @@ +/* + * Copyright(c) 2008 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_ENCODE_H_ +#define _FC_ENCODE_H_ +#include <asm/unaligned.h> + +struct fc_ns_rft { + struct fc_ns_fid fid; /* port ID object */ + struct fc_ns_fts fts; /* FC4-types object */ +}; + +struct fc_ct_req { + struct fc_ct_hdr hdr; + union { + struct fc_ns_gid_ft gid; + struct fc_ns_rn_id rn; + struct fc_ns_rft rft; + } payload; +}; + +/** + * fill FC header fields in specified fc_frame + */ +static inline void fc_fill_fc_hdr(struct fc_frame *fp, enum fc_rctl r_ctl, + u32 did, u32 sid, enum fc_fh_type type, + u32 f_ctl, u32 parm_offset) +{ + struct fc_frame_header *fh; + + fh = fc_frame_header_get(fp); + WARN_ON(r_ctl == 0); + fh->fh_r_ctl = r_ctl; + hton24(fh->fh_d_id, did); + hton24(fh->fh_s_id, sid); + fh->fh_type = type; + hton24(fh->fh_f_ctl, f_ctl); + fh->fh_cs_ctl = 0; + fh->fh_df_ctl = 0; + fh->fh_parm_offset = htonl(parm_offset); +} + +/** + * fc_ct_hdr_fill- fills ct header and reset ct payload + * returns pointer to ct request. + */ +static inline struct fc_ct_req *fc_ct_hdr_fill(const struct fc_frame *fp, + unsigned int op, size_t req_size) +{ + struct fc_ct_req *ct; + size_t ct_plen; + + ct_plen = sizeof(struct fc_ct_hdr) + req_size; + ct = fc_frame_payload_get(fp, ct_plen); + memset(ct, 0, ct_plen); + ct->hdr.ct_rev = FC_CT_REV; + ct->hdr.ct_fs_type = FC_FST_DIR; + ct->hdr.ct_fs_subtype = FC_NS_SUBTYPE; + ct->hdr.ct_cmd = htons((u16) op); + return ct; +} + +/** + * fc_ct_fill - Fill in a name service request frame + */ +static inline int fc_ct_fill(struct fc_lport *lport, struct fc_frame *fp, + unsigned int op, enum fc_rctl *r_ctl, u32 *did, + enum fc_fh_type *fh_type) +{ + struct fc_ct_req *ct; + + switch (op) { + case FC_NS_GPN_FT: + ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_gid_ft)); + ct->payload.gid.fn_fc4_type = FC_TYPE_FCP; + break; + + case FC_NS_RFT_ID: + ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rft)); + hton24(ct->payload.rft.fid.fp_fid, + fc_host_port_id(lport->host)); + ct->payload.rft.fts = lport->fcts; + break; + + case FC_NS_RPN_ID: + ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rn_id)); + hton24(ct->payload.rn.fr_fid.fp_fid, + fc_host_port_id(lport->host)); + ct->payload.rft.fts = lport->fcts; + put_unaligned_be64(lport->wwpn, &ct->payload.rn.fr_wwn); + break; + + default: + FC_DBG("Invalid op code %x \n", op); + return -EINVAL; + } + *r_ctl = FC_RCTL_DD_UNSOL_CTL; + *did = FC_FID_DIR_SERV; + *fh_type = FC_TYPE_CT; + return 0; +} + +/** + * fc_plogi_fill - Fill in plogi request frame + */ +static inline void fc_plogi_fill(struct fc_lport *lport, struct fc_frame *fp, + unsigned int op) +{ + struct fc_els_flogi *plogi; + struct fc_els_csp *csp; + struct fc_els_cssp *cp; + + plogi = fc_frame_payload_get(fp, sizeof(*plogi)); + memset(plogi, 0, sizeof(*plogi)); + plogi->fl_cmd = (u8) op; + put_unaligned_be64(lport->wwpn, &plogi->fl_wwpn); + put_unaligned_be64(lport->wwnn, &plogi->fl_wwnn); + + csp = &plogi->fl_csp; + csp->sp_hi_ver = 0x20; + csp->sp_lo_ver = 0x20; + csp->sp_bb_cred = htons(10); /* this gets set by gateway */ + csp->sp_bb_data = htons((u16) lport->mfs); + cp = &plogi->fl_cssp[3 - 1]; /* class 3 parameters */ + cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ); + csp->sp_features = htons(FC_SP_FT_CIRO); + csp->sp_tot_seq = htons(255); /* seq. we accept */ + csp->sp_rel_off = htons(0x1f); + csp->sp_e_d_tov = htonl(lport->e_d_tov); + + cp->cp_rdfs = htons((u16) lport->mfs); + cp->cp_con_seq = htons(255); + cp->cp_open_seq = 1; +} + +/** + * fc_flogi_fill - Fill in a flogi request frame. + */ +static inline void fc_flogi_fill(struct fc_lport *lport, struct fc_frame *fp) +{ + struct fc_els_csp *sp; + struct fc_els_cssp *cp; + struct fc_els_flogi *flogi; + + flogi = fc_frame_payload_get(fp, sizeof(*flogi)); + memset(flogi, 0, sizeof(*flogi)); + flogi->fl_cmd = (u8) ELS_FLOGI; + put_unaligned_be64(lport->wwpn, &flogi->fl_wwpn); + put_unaligned_be64(lport->wwnn, &flogi->fl_wwnn); + sp = &flogi->fl_csp; + sp->sp_hi_ver = 0x20; + sp->sp_lo_ver = 0x20; + sp->sp_bb_cred = htons(10); /* this gets set by gateway */ + sp->sp_bb_data = htons((u16) lport->mfs); + cp = &flogi->fl_cssp[3 - 1]; /* class 3 parameters */ + cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ); +} + +/** + * fc_logo_fill - Fill in a logo request frame. + */ +static inline void fc_logo_fill(struct fc_lport *lport, struct fc_frame *fp) +{ + struct fc_els_logo *logo; + + logo = fc_frame_payload_get(fp, sizeof(*logo)); + memset(logo, 0, sizeof(*logo)); + logo->fl_cmd = ELS_LOGO; + hton24(logo->fl_n_port_id, fc_host_port_id(lport->host)); + logo->fl_n_port_wwn = htonll(lport->wwpn); +} + +/** + * fc_rtv_fill - Fill in RTV (read timeout value) request frame. + */ +static inline void fc_rtv_fill(struct fc_lport *lport, struct fc_frame *fp) +{ + struct fc_els_rtv *rtv; + + rtv = fc_frame_payload_get(fp, sizeof(*rtv)); + memset(rtv, 0, sizeof(*rtv)); + rtv->rtv_cmd = ELS_RTV; +} + +/** + * fc_rec_fill - Fill in rec request frame + */ +static inline void fc_rec_fill(struct fc_lport *lport, struct fc_frame *fp) +{ + struct fc_els_rec *rec; + struct fc_exch *ep = fc_seq_exch(fr_seq(fp)); + + rec = fc_frame_payload_get(fp, sizeof(*rec)); + memset(rec, 0, sizeof(*rec)); + rec->rec_cmd = ELS_REC; + hton24(rec->rec_s_id, fc_host_port_id(lport->host)); + rec->rec_ox_id = htons(ep->oxid); + rec->rec_rx_id = htons(ep->rxid); +} + +/** + * fc_prli_fill - Fill in prli request frame + */ +static inline void fc_prli_fill(struct fc_lport *lport, struct fc_frame *fp) +{ + struct { + struct fc_els_prli prli; + struct fc_els_spp spp; + } *pp; + + pp = fc_frame_payload_get(fp, sizeof(*pp)); + memset(pp, 0, sizeof(*pp)); + pp->prli.prli_cmd = ELS_PRLI; + pp->prli.prli_spp_len = sizeof(struct fc_els_spp); + pp->prli.prli_len = htons(sizeof(*pp)); + pp->spp.spp_type = FC_TYPE_FCP; + pp->spp.spp_flags = FC_SPP_EST_IMG_PAIR; + pp->spp.spp_params = htonl(lport->service_params); +} + +/** + * fc_scr_fill - Fill in a scr request frame. + */ +static inline void fc_scr_fill(struct fc_lport *lport, struct fc_frame *fp) +{ + struct fc_els_scr *scr; + + scr = fc_frame_payload_get(fp, sizeof(*scr)); + memset(scr, 0, sizeof(*scr)); + scr->scr_cmd = ELS_SCR; + scr->scr_reg_func = ELS_SCRF_FULL; +} + +/** + * fc_els_fill - Fill in an ELS request frame + */ +static inline int fc_els_fill(struct fc_lport *lport, struct fc_rport *rport, + struct fc_frame *fp, unsigned int op, + enum fc_rctl *r_ctl, u32 *did, enum fc_fh_type *fh_type) +{ + switch (op) { + case ELS_PLOGI: + fc_plogi_fill(lport, fp, ELS_PLOGI); + *did = rport->port_id; + break; + + case ELS_FLOGI: + fc_flogi_fill(lport, fp); + *did = FC_FID_FLOGI; + break; + + case ELS_LOGO: + fc_logo_fill(lport, fp); + *did = FC_FID_FLOGI; + /* + * if rport is valid then it + * is port logo, therefore + * set did to rport id. + */ + if (rport) + *did = rport->port_id; + break; + + case ELS_RTV: + fc_rtv_fill(lport, fp); + *did = rport->port_id; + break; + + case ELS_REC: + fc_rec_fill(lport, fp); + *did = rport->port_id; + break; + + case ELS_PRLI: + fc_prli_fill(lport, fp); + *did = rport->port_id; + break; + + case ELS_SCR: + fc_scr_fill(lport, fp); + *did = FC_FID_FCTRL; + break; + + default: + FC_DBG("Invalid op code %x \n", op); + return -EINVAL; + } + + *r_ctl = FC_RCTL_ELS_REQ; + *fh_type = FC_TYPE_ELS; + return 0; +} +#endif /* _FC_ENCODE_H_ */ diff --git a/include/scsi/fc_frame.h b/include/scsi/fc_frame.h new file mode 100644 index 0000000..04d34a7 --- /dev/null +++ b/include/scsi/fc_frame.h @@ -0,0 +1,242 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FRAME_H_ +#define _FC_FRAME_H_ + +#include <linux/scatterlist.h> +#include <linux/skbuff.h> +#include <scsi/scsi_cmnd.h> + +#include <scsi/fc/fc_fs.h> +#include <scsi/fc/fc_fcp.h> +#include <scsi/fc/fc_encaps.h> + +/* + * The fc_frame interface is used to pass frame data between functions. + * The frame includes the data buffer, length, and SOF / EOF delimiter types. + * A pointer to the port structure of the receiving port is also includeded. + */ + +#define FC_FRAME_HEADROOM 32 /* headroom for VLAN + FCoE headers */ +#define FC_FRAME_TAILROOM 8 /* trailer space for FCoE */ + +/* + * Information about an individual fibre channel frame received or to be sent. + * The buffer may be in up to 4 additional non-contiguous sections, + * but the linear section must hold the frame header. + */ +#define FC_FRAME_SG_LEN 4 /* scatter/gather list maximum length */ + +#define fp_skb(fp) (&((fp)->skb)) +#define fr_hdr(fp) ((fp)->skb.data) +#define fr_len(fp) ((fp)->skb.len) +#define fr_cb(fp) ((struct fcoe_rcv_info *)&((fp)->skb.cb[0])) +#define fr_dev(fp) (fr_cb(fp)->fr_dev) +#define fr_seq(fp) (fr_cb(fp)->fr_seq) +#define fr_sof(fp) (fr_cb(fp)->fr_sof) +#define fr_eof(fp) (fr_cb(fp)->fr_eof) +#define fr_flags(fp) (fr_cb(fp)->fr_flags) +#define fr_max_payload(fp) (fr_cb(fp)->fr_max_payload) +#define fr_cmd(fp) (fr_cb(fp)->fr_cmd) +#define fr_dir(fp) (fr_cmd(fp)->sc_data_direction) +#define fr_crc(fp) (fr_cb(fp)->fr_crc) + +struct fc_frame { + struct sk_buff skb; +}; + +struct fcoe_rcv_info { + struct packet_type *ptype; + struct fc_lport *fr_dev; /* transport layer private pointer */ + struct fc_seq *fr_seq; /* for use with exchange manager */ + struct scsi_cmnd *fr_cmd; /* for use of scsi command */ + u32 fr_crc; + u16 fr_max_payload; /* max FC payload */ + enum fc_sof fr_sof; /* start of frame delimiter */ + enum fc_eof fr_eof; /* end of frame delimiter */ + u8 fr_flags; /* flags - see below */ +}; + + +/* + * Get fc_frame pointer for an skb that's already been imported. + */ +static inline struct fcoe_rcv_info *fcoe_dev_from_skb(const struct sk_buff *skb) +{ + BUILD_BUG_ON(sizeof(struct fcoe_rcv_info) > sizeof(skb->cb)); + return (struct fcoe_rcv_info *) skb->cb; +} + +/* + * fr_flags. + */ +#define FCPHF_CRC_UNCHECKED 0x01 /* CRC not computed, still appended */ + +/* + * Initialize a frame. + * We don't do a complete memset here for performance reasons. + * The caller must set fr_free, fr_hdr, fr_len, fr_sof, and fr_eof eventually. + */ +static inline void fc_frame_init(struct fc_frame *fp) +{ + fr_dev(fp) = NULL; + fr_seq(fp) = NULL; + fr_flags(fp) = 0; +} + +struct fc_frame *fc_frame_alloc_fill(struct fc_lport *, size_t payload_len); + +struct fc_frame *__fc_frame_alloc(size_t payload_len); + +/* + * Get frame for sending via port. + */ +static inline struct fc_frame *_fc_frame_alloc(struct fc_lport *dev, + size_t payload_len) +{ + return __fc_frame_alloc(payload_len); +} + +/* + * Allocate fc_frame structure and buffer. Set the initial length to + * payload_size + sizeof (struct fc_frame_header). + */ +static inline struct fc_frame *fc_frame_alloc(struct fc_lport *dev, size_t len) +{ + struct fc_frame *fp; + + /* + * Note: Since len will often be a constant multiple of 4, + * this check will usually be evaluated and eliminated at compile time. + */ + if ((len % 4) != 0) + fp = fc_frame_alloc_fill(dev, len); + else + fp = _fc_frame_alloc(dev, len); + return fp; +} + +/* + * Free the fc_frame structure and buffer. + */ +static inline void fc_frame_free(struct fc_frame *fp) +{ + kfree_skb(fp_skb(fp)); +} + +static inline int fc_frame_is_linear(struct fc_frame *fp) +{ + return !skb_is_nonlinear(fp_skb(fp)); +} + +/* + * Get frame header from message in fc_frame structure. + * This hides a cast and provides a place to add some checking. + */ +static inline +struct fc_frame_header *fc_frame_header_get(const struct fc_frame *fp) +{ + WARN_ON(fr_len(fp) < sizeof(struct fc_frame_header)); + return (struct fc_frame_header *) fr_hdr(fp); +} + +/* + * Get frame payload from message in fc_frame structure. + * This hides a cast and provides a place to add some checking. + * The len parameter is the minimum length for the payload portion. + * Returns NULL if the frame is too short. + * + * This assumes the interesting part of the payload is in the first part + * of the buffer for received data. This may not be appropriate to use for + * buffers being transmitted. + */ +static inline void *fc_frame_payload_get(const struct fc_frame *fp, + size_t len) +{ + void *pp = NULL; + + if (fr_len(fp) >= sizeof(struct fc_frame_header) + len) + pp = fc_frame_header_get(fp) + 1; + return pp; +} + +/* + * Get frame payload opcode (first byte) from message in fc_frame structure. + * This hides a cast and provides a place to add some checking. Return 0 + * if the frame has no payload. + */ +static inline u8 fc_frame_payload_op(const struct fc_frame *fp) +{ + u8 *cp; + + cp = fc_frame_payload_get(fp, sizeof(u8)); + if (!cp) + return 0; + return *cp; + +} + +/* + * Get FC class from frame. + */ +static inline enum fc_class fc_frame_class(const struct fc_frame *fp) +{ + return fc_sof_class(fr_sof(fp)); +} + +/* + * Check the CRC in a frame. + * The CRC immediately follows the last data item *AFTER* the length. + * The return value is zero if the CRC matches. + */ +u32 fc_frame_crc_check(struct fc_frame *); + +static inline u8 fc_frame_rctl(const struct fc_frame *fp) +{ + return fc_frame_header_get(fp)->fh_r_ctl; +} + +static inline bool fc_frame_is_cmd(const struct fc_frame *fp) +{ + return fc_frame_rctl(fp) == FC_RCTL_DD_UNSOL_CMD; +} + +static inline bool fc_frame_is_read(const struct fc_frame *fp) +{ + if (fc_frame_is_cmd(fp) && fr_cmd(fp)) + return fr_dir(fp) == DMA_FROM_DEVICE; + return false; +} + +static inline bool fc_frame_is_write(const struct fc_frame *fp) +{ + if (fc_frame_is_cmd(fp) && fr_cmd(fp)) + return fr_dir(fp) == DMA_TO_DEVICE; + return false; +} + +/* + * Check for leaks. + * Print the frame header of any currently allocated frame, assuming there + * should be none at this point. + */ +void fc_frame_leak_check(void); + +#endif /* _FC_FRAME_H_ */ diff --git a/include/scsi/fc_transport_fcoe.h b/include/scsi/fc_transport_fcoe.h new file mode 100644 index 0000000..8dca2af --- /dev/null +++ b/include/scsi/fc_transport_fcoe.h @@ -0,0 +1,54 @@ +#ifndef FC_TRANSPORT_FCOE_H +#define FC_TRANSPORT_FCOE_H + +#include <linux/device.h> +#include <linux/netdevice.h> +#include <scsi/scsi_host.h> +#include <scsi/libfc.h> + +/** + * struct fcoe_transport - FCoE transport struct for generic transport + * for Ethernet devices as well as pure HBAs + * + * @name: name for thsi transport + * @bus: physical bus type (pci_bus_type) + * @driver: physical bus driver for network device + * @create: entry create function + * @destroy: exit destroy function + * @list: list of transports + */ +struct fcoe_transport { + char *name; + unsigned short vendor; + unsigned short device; + struct bus_type *bus; + struct device_driver *driver; + int (*create)(struct net_device *device); + int (*destroy)(struct net_device *device); + bool (*match)(struct net_device *device); + struct list_head list; + struct list_head devlist; + struct mutex devlock; +}; + +/** + * MODULE_ALIAS_FCOE_PCI + * + * some care must be taken with this, vendor and device MUST be a hex value + * preceded with 0x and with letters in lower case (0x12ab, not 0x12AB or 12AB) + */ +#define MODULE_ALIAS_FCOE_PCI(vendor, device) \ + MODULE_ALIAS("fcoe-pci-" __stringify(vendor) "-" __stringify(device)) + +/* exported funcs */ +int fcoe_transport_attach(struct net_device *netdev); +int fcoe_transport_release(struct net_device *netdev); +int fcoe_transport_register(struct fcoe_transport *t); +int fcoe_transport_unregister(struct fcoe_transport *t); +int fcoe_load_transport_driver(struct net_device *netdev); +int __init fcoe_transport_init(void); +int __exit fcoe_transport_exit(void); + +/* fcow_sw is the default transport */ +extern struct fcoe_transport fcoe_sw_transport; +#endif /* FC_TRANSPORT_FCOE_H */ diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index 0c9514d..d0ed522 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -333,8 +333,11 @@ enum iscsi_host_param { #define CAP_TEXT_NEGO 0x80 #define CAP_MARKERS 0x100 #define CAP_FW_DB 0x200 -#define CAP_SENDTARGETS_OFFLOAD 0x400 -#define CAP_DATA_PATH_OFFLOAD 0x800 +#define CAP_SENDTARGETS_OFFLOAD 0x400 /* offload discovery process */ +#define CAP_DATA_PATH_OFFLOAD 0x800 /* offload entire IO path */ +#define CAP_DIGEST_OFFLOAD 0x1000 /* offload hdr and data digests */ +#define CAP_PADDING_OFFLOAD 0x2000 /* offload padding insertion, removal, + and verification */ /* * These flags describes reason of stop_conn() call diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h new file mode 100644 index 0000000..9f28763 --- /dev/null +++ b/include/scsi/libfc.h @@ -0,0 +1,938 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _LIBFC_H_ +#define _LIBFC_H_ + +#include <linux/timer.h> +#include <linux/if.h> + +#include <scsi/scsi_transport.h> +#include <scsi/scsi_transport_fc.h> + +#include <scsi/fc/fc_fcp.h> +#include <scsi/fc/fc_ns.h> +#include <scsi/fc/fc_els.h> +#include <scsi/fc/fc_gs.h> + +#include <scsi/fc_frame.h> + +#define LIBFC_DEBUG + +#ifdef LIBFC_DEBUG +/* Log messages */ +#define FC_DBG(fmt, args...) \ + do { \ + printk(KERN_INFO "%s " fmt, __func__, ##args); \ + } while (0) +#else +#define FC_DBG(fmt, args...) +#endif + +/* + * libfc error codes + */ +#define FC_NO_ERR 0 /* no error */ +#define FC_EX_TIMEOUT 1 /* Exchange timeout */ +#define FC_EX_CLOSED 2 /* Exchange closed */ + +/* some helpful macros */ + +#define ntohll(x) be64_to_cpu(x) +#define htonll(x) cpu_to_be64(x) + +#define ntoh24(p) (((p)[0] << 16) | ((p)[1] << 8) | ((p)[2])) + +#define hton24(p, v) do { \ + p[0] = (((v) >> 16) & 0xFF); \ + p[1] = (((v) >> 8) & 0xFF); \ + p[2] = ((v) & 0xFF); \ + } while (0) + +/* + * FC HBA status + */ +#define FC_PAUSE (1 << 1) +#define FC_LINK_UP (1 << 0) + +enum fc_lport_state { + LPORT_ST_NONE = 0, + LPORT_ST_FLOGI, + LPORT_ST_DNS, + LPORT_ST_RPN_ID, + LPORT_ST_RFT_ID, + LPORT_ST_SCR, + LPORT_ST_READY, + LPORT_ST_LOGO, + LPORT_ST_RESET +}; + +enum fc_disc_event { + DISC_EV_NONE = 0, + DISC_EV_SUCCESS, + DISC_EV_FAILED +}; + +enum fc_rport_state { + RPORT_ST_NONE = 0, + RPORT_ST_INIT, /* initialized */ + RPORT_ST_PLOGI, /* waiting for PLOGI completion */ + RPORT_ST_PRLI, /* waiting for PRLI completion */ + RPORT_ST_RTV, /* waiting for RTV completion */ + RPORT_ST_READY, /* ready for use */ + RPORT_ST_LOGO, /* port logout sent */ +}; + +enum fc_rport_trans_state { + FC_PORTSTATE_ROGUE, + FC_PORTSTATE_REAL, +}; + +/** + * struct fc_disc_port - temporary discovery port to hold rport identifiers + * @lp: Fibre Channel host port instance + * @peers: node for list management during discovery and RSCN processing + * @ids: identifiers structure to pass to fc_remote_port_add() + * @rport_work: work struct for starting the rport state machine + */ +struct fc_disc_port { + struct fc_lport *lp; + struct list_head peers; + struct fc_rport_identifiers ids; + struct work_struct rport_work; +}; + +enum fc_rport_event { + RPORT_EV_NONE = 0, + RPORT_EV_CREATED, + RPORT_EV_FAILED, + RPORT_EV_STOP, + RPORT_EV_LOGO +}; + +struct fc_rport_operations { + void (*event_callback)(struct fc_lport *, struct fc_rport *, + enum fc_rport_event); +}; + +/** + * struct fc_rport_libfc_priv - libfc internal information about a remote port + * @local_port: Fibre Channel host port instance + * @rp_state: state tracks progress of PLOGI, PRLI, and RTV exchanges + * @flags: REC and RETRY supported flags + * @max_seq: maximum number of concurrent sequences + * @retries: retry count in current state + * @e_d_tov: error detect timeout value (in msec) + * @r_a_tov: resource allocation timeout value (in msec) + * @rp_mutex: mutex protects rport + * @retry_work: + * @event_callback: Callback for rport READY, FAILED or LOGO + */ +struct fc_rport_libfc_priv { + struct fc_lport *local_port; + enum fc_rport_state rp_state; + u16 flags; + #define FC_RP_FLAGS_REC_SUPPORTED (1 << 0) + #define FC_RP_FLAGS_RETRY (1 << 1) + u16 max_seq; + unsigned int retries; + unsigned int e_d_tov; + unsigned int r_a_tov; + enum fc_rport_trans_state trans_state; + struct mutex rp_mutex; + struct delayed_work retry_work; + enum fc_rport_event event; + struct fc_rport_operations *ops; + struct list_head peers; + struct work_struct event_work; +}; + +#define PRIV_TO_RPORT(x) \ + (struct fc_rport *)((void *)x - sizeof(struct fc_rport)); +#define RPORT_TO_PRIV(x) \ + (struct fc_rport_libfc_priv *)((void *)x + sizeof(struct fc_rport)); + +struct fc_rport *fc_rport_rogue_create(struct fc_disc_port *); + +static inline void fc_rport_set_name(struct fc_rport *rport, u64 wwpn, u64 wwnn) +{ + rport->node_name = wwnn; + rport->port_name = wwpn; +} + +/* + * fcoe stats structure + */ +struct fcoe_dev_stats { + u64 SecondsSinceLastReset; + u64 TxFrames; + u64 TxWords; + u64 RxFrames; + u64 RxWords; + u64 ErrorFrames; + u64 DumpedFrames; + u64 LinkFailureCount; + u64 LossOfSignalCount; + u64 InvalidTxWordCount; + u64 InvalidCRCCount; + u64 InputRequests; + u64 OutputRequests; + u64 ControlRequests; + u64 InputMegabytes; + u64 OutputMegabytes; +}; + +/* + * els data is used for passing ELS respone specific + * data to send ELS response mainly using infomation + * in exchange and sequence in EM layer. + */ +struct fc_seq_els_data { + struct fc_frame *fp; + enum fc_els_rjt_reason reason; + enum fc_els_rjt_explan explan; +}; + +/* + * FCP request structure, one for each scsi cmd request + */ +struct fc_fcp_pkt { + /* + * housekeeping stuff + */ + struct fc_lport *lp; /* handle to hba struct */ + u16 state; /* scsi_pkt state state */ + u16 tgt_flags; /* target flags */ + atomic_t ref_cnt; /* fcp pkt ref count */ + spinlock_t scsi_pkt_lock; /* Must be taken before the host lock + * if both are held at the same time */ + /* + * SCSI I/O related stuff + */ + struct scsi_cmnd *cmd; /* scsi command pointer. set/clear + * under host lock */ + struct list_head list; /* tracks queued commands. access under + * host lock */ + /* + * timeout related stuff + */ + struct timer_list timer; /* command timer */ + struct completion tm_done; + int wait_for_comp; + unsigned long start_time; /* start jiffie */ + unsigned long end_time; /* end jiffie */ + unsigned long last_pkt_time; /* jiffies of last frame received */ + + /* + * scsi cmd and data transfer information + */ + u32 data_len; + /* + * transport related veriables + */ + struct fcp_cmnd cdb_cmd; + size_t xfer_len; + u32 xfer_contig_end; /* offset of end of contiguous xfer */ + u16 max_payload; /* max payload size in bytes */ + + /* + * scsi/fcp return status + */ + u32 io_status; /* SCSI result upper 24 bits */ + u8 cdb_status; + u8 status_code; /* FCP I/O status */ + /* bit 3 Underrun bit 2: overrun */ + u8 scsi_comp_flags; + u32 req_flags; /* bit 0: read bit:1 write */ + u32 scsi_resid; /* residule length */ + + struct fc_rport *rport; /* remote port pointer */ + struct fc_seq *seq_ptr; /* current sequence pointer */ + /* + * Error Processing + */ + u8 recov_retry; /* count of recovery retries */ + struct fc_seq *recov_seq; /* sequence for REC or SRR */ +}; + +/* + * Structure and function definitions for managing Fibre Channel Exchanges + * and Sequences + * + * fc_exch holds state for one exchange and links to its active sequence. + * + * fc_seq holds the state for an individual sequence. + */ + +struct fc_exch_mgr; + +/* + * Sequence. + */ +struct fc_seq { + u8 id; /* seq ID */ + u16 ssb_stat; /* status flags for sequence status block */ + u16 cnt; /* frames sent so far on sequence */ + u32 rec_data; /* FC-4 value for REC */ +}; + +#define FC_EX_DONE (1 << 0) /* ep is completed */ +#define FC_EX_RST_CLEANUP (1 << 1) /* reset is forcing completion */ + +/* + * Exchange. + * + * Locking notes: The ex_lock protects following items: + * state, esb_stat, f_ctl, seq.ssb_stat + * seq_id + * sequence allocation + */ +struct fc_exch { + struct fc_exch_mgr *em; /* exchange manager */ + u32 state; /* internal driver state */ + u16 xid; /* our exchange ID */ + struct list_head ex_list; /* free or busy list linkage */ + spinlock_t ex_lock; /* lock covering exchange state */ + atomic_t ex_refcnt; /* reference counter */ + struct delayed_work timeout_work; /* timer for upper level protocols */ + struct fc_lport *lp; /* fc device instance */ + u16 oxid; /* originator's exchange ID */ + u16 rxid; /* responder's exchange ID */ + u32 oid; /* originator's FCID */ + u32 sid; /* source FCID */ + u32 did; /* destination FCID */ + u32 esb_stat; /* exchange status for ESB */ + u32 r_a_tov; /* r_a_tov from rport (msec) */ + u8 seq_id; /* next sequence ID to use */ + u32 f_ctl; /* F_CTL flags for sequences */ + u8 fh_type; /* frame type */ + enum fc_class class; /* class of service */ + struct fc_seq seq; /* single sequence */ + /* + * Handler for responses to this current exchange. + */ + void (*resp)(struct fc_seq *, struct fc_frame *, void *); + void (*destructor)(struct fc_seq *, void *); + /* + * arg is passed as void pointer to exchange + * resp and destructor handlers + */ + void *arg; +}; +#define fc_seq_exch(sp) container_of(sp, struct fc_exch, seq) + +struct libfc_function_template { + + /** + * Mandatory Fields + * + * These handlers must be implemented by the LLD. + */ + + /* + * Interface to send a FC frame + */ + int (*frame_send)(struct fc_lport *lp, struct fc_frame *fp); + + /** + * Optional Fields + * + * The LLD may choose to implement any of the following handlers. + * If LLD doesn't specify hander and leaves its pointer NULL then + * the default libfc function will be used for that handler. + */ + + /** + * ELS/CT interfaces + */ + + /* + * elsct_send - sends ELS/CT frame + */ + struct fc_seq *(*elsct_send)(struct fc_lport *lport, + struct fc_rport *rport, + struct fc_frame *fp, + unsigned int op, + void (*resp)(struct fc_seq *, + struct fc_frame *fp, + void *arg), + void *arg, u32 timer_msec); + /** + * Exhance Manager interfaces + */ + + /* + * Send the FC frame payload using a new exchange and sequence. + * + * The frame pointer with some of the header's fields must be + * filled before calling exch_seq_send(), those fields are, + * + * - routing control + * - FC port did + * - FC port sid + * - FC header type + * - frame control + * - parameter or relative offset + * + * The exchange response handler is set in this routine to resp() + * function pointer. It can be called in two scenarios: if a timeout + * occurs or if a response frame is received for the exchange. The + * fc_frame pointer in response handler will also indicate timeout + * as error using IS_ERR related macros. + * + * The exchange destructor handler is also set in this routine. + * The destructor handler is invoked by EM layer when exchange + * is about to free, this can be used by caller to free its + * resources along with exchange free. + * + * The arg is passed back to resp and destructor handler. + * + * The timeout value (in msec) for an exchange is set if non zero + * timer_msec argument is specified. The timer is canceled when + * it fires or when the exchange is done. The exchange timeout handler + * is registered by EM layer. + */ + struct fc_seq *(*exch_seq_send)(struct fc_lport *lp, + struct fc_frame *fp, + void (*resp)(struct fc_seq *sp, + struct fc_frame *fp, + void *arg), + void (*destructor)(struct fc_seq *sp, + void *arg), + void *arg, unsigned int timer_msec); + + /* + * send a frame using existing sequence and exchange. + */ + int (*seq_send)(struct fc_lport *lp, struct fc_seq *sp, + struct fc_frame *fp); + + /* + * Send ELS response using mainly infomation + * in exchange and sequence in EM layer. + */ + void (*seq_els_rsp_send)(struct fc_seq *sp, enum fc_els_cmd els_cmd, + struct fc_seq_els_data *els_data); + + /* + * Abort an exchange and sequence. Generally called because of a + * exchange timeout or an abort from the upper layer. + * + * A timer_msec can be specified for abort timeout, if non-zero + * timer_msec value is specified then exchange resp handler + * will be called with timeout error if no response to abort. + */ + int (*seq_exch_abort)(const struct fc_seq *req_sp, + unsigned int timer_msec); + + /* + * Indicate that an exchange/sequence tuple is complete and the memory + * allocated for the related objects may be freed. + */ + void (*exch_done)(struct fc_seq *sp); + + /* + * Assigns a EM and a free XID for an new exchange and then + * allocates a new exchange and sequence pair. + * The fp can be used to determine free XID. + */ + struct fc_exch *(*exch_get)(struct fc_lport *lp, struct fc_frame *fp); + + /* + * Release previously assigned XID by exch_get API. + * The LLD may implement this if XID is assigned by LLD + * in exch_get(). + */ + void (*exch_put)(struct fc_lport *lp, struct fc_exch_mgr *mp, + u16 ex_id); + + /* + * Start a new sequence on the same exchange/sequence tuple. + */ + struct fc_seq *(*seq_start_next)(struct fc_seq *sp); + + /* + * Reset an exchange manager, completing all sequences and exchanges. + * If s_id is non-zero, reset only exchanges originating from that FID. + * If d_id is non-zero, reset only exchanges sending to that FID. + */ + void (*exch_mgr_reset)(struct fc_exch_mgr *, + u32 s_id, u32 d_id); + + void (*rport_flush_queue)(void); + /** + * Local Port interfaces + */ + + /* + * Receive a frame to a local port. + */ + void (*lport_recv)(struct fc_lport *lp, struct fc_seq *sp, + struct fc_frame *fp); + + int (*lport_reset)(struct fc_lport *); + + /** + * Remote Port interfaces + */ + + /* + * Initiates the RP state machine. It is called from the LP module. + * This function will issue the following commands to the N_Port + * identified by the FC ID provided. + * + * - PLOGI + * - PRLI + * - RTV + */ + int (*rport_login)(struct fc_rport *rport); + + /* + * Logoff, and remove the rport from the transport if + * it had been added. This will send a LOGO to the target. + */ + int (*rport_logoff)(struct fc_rport *rport); + + /* + * Recieve a request from a remote port. + */ + void (*rport_recv_req)(struct fc_seq *, struct fc_frame *, + struct fc_rport *); + + struct fc_rport *(*rport_lookup)(const struct fc_lport *, u32); + + /** + * FCP interfaces + */ + + /* + * Send a fcp cmd from fsp pkt. + * Called with the SCSI host lock unlocked and irqs disabled. + * + * The resp handler is called when FCP_RSP received. + * + */ + int (*fcp_cmd_send)(struct fc_lport *lp, struct fc_fcp_pkt *fsp, + void (*resp)(struct fc_seq *, struct fc_frame *fp, + void *arg)); + + /* + * Used at least durring linkdown and reset + */ + void (*fcp_cleanup)(struct fc_lport *lp); + + /* + * Abort all I/O on a local port + */ + void (*fcp_abort_io)(struct fc_lport *lp); + + /** + * Discovery interfaces + */ + + void (*disc_recv_req)(struct fc_seq *, + struct fc_frame *, struct fc_lport *); + + /* + * Start discovery for a local port. + */ + void (*disc_start)(void (*disc_callback)(struct fc_lport *, + enum fc_disc_event), + struct fc_lport *); + + /* + * Stop discovery for a given lport. This will remove + * all discovered rports + */ + void (*disc_stop) (struct fc_lport *); + + /* + * Stop discovery for a given lport. This will block + * until all discovered rports are deleted from the + * FC transport class + */ + void (*disc_stop_final) (struct fc_lport *); +}; + +/* information used by the discovery layer */ +struct fc_disc { + unsigned char retry_count; + unsigned char delay; + unsigned char pending; + unsigned char requested; + unsigned short seq_count; + unsigned char buf_len; + enum fc_disc_event event; + + void (*disc_callback)(struct fc_lport *, + enum fc_disc_event); + + struct list_head rports; + struct fc_lport *lport; + struct mutex disc_mutex; + struct fc_gpn_ft_resp partial_buf; /* partial name buffer */ + struct delayed_work disc_work; +}; + +struct fc_lport { + struct list_head list; + + /* Associations */ + struct Scsi_Host *host; + struct fc_exch_mgr *emp; + struct fc_rport *dns_rp; + struct fc_rport *ptp_rp; + void *scsi_priv; + struct fc_disc disc; + + /* Operational Information */ + struct libfc_function_template tt; + u16 link_status; + enum fc_lport_state state; + unsigned long boot_time; + + struct fc_host_statistics host_stats; + struct fcoe_dev_stats *dev_stats[NR_CPUS]; + u64 wwpn; + u64 wwnn; + u8 retry_count; + + /* Capabilities */ + u32 sg_supp:1; /* scatter gather supported */ + u32 seq_offload:1; /* seq offload supported */ + u32 crc_offload:1; /* crc offload supported */ + u32 lro_enabled:1; /* large receive offload */ + u32 mfs; /* max FC payload size */ + unsigned int service_params; + unsigned int e_d_tov; + unsigned int r_a_tov; + u8 max_retry_count; + u16 link_speed; + u16 link_supported_speeds; + u16 lro_xid; /* max xid for fcoe lro */ + struct fc_ns_fts fcts; /* FC-4 type masks */ + struct fc_els_rnid_gen rnid_gen; /* RNID information */ + + /* Semaphores */ + struct mutex lp_mutex; + + /* Miscellaneous */ + struct delayed_work retry_work; + struct delayed_work disc_work; +}; + +/** + * FC_LPORT HELPER FUNCTIONS + *****************************/ +static inline void *lport_priv(const struct fc_lport *lp) +{ + return (void *)(lp + 1); +} + +static inline int fc_lport_test_ready(struct fc_lport *lp) +{ + return lp->state == LPORT_ST_READY; +} + +static inline void fc_set_wwnn(struct fc_lport *lp, u64 wwnn) +{ + lp->wwnn = wwnn; +} + +static inline void fc_set_wwpn(struct fc_lport *lp, u64 wwnn) +{ + lp->wwpn = wwnn; +} + +static inline void fc_lport_state_enter(struct fc_lport *lp, + enum fc_lport_state state) +{ + if (state != lp->state) + lp->retry_count = 0; + lp->state = state; +} + + +/** + * LOCAL PORT LAYER + *****************************/ +int fc_lport_init(struct fc_lport *lp); + +/* + * Destroy the specified local port by finding and freeing all + * fc_rports associated with it and then by freeing the fc_lport + * itself. + */ +int fc_lport_destroy(struct fc_lport *lp); + +/* + * Logout the specified local port from the fabric + */ +int fc_fabric_logoff(struct fc_lport *lp); + +/* + * Initiate the LP state machine. This handler will use fc_host_attr + * to store the FLOGI service parameters, so fc_host_attr must be + * initialized before calling this handler. + */ +int fc_fabric_login(struct fc_lport *lp); + +/* + * The link is up for the given local port. + */ +void fc_linkup(struct fc_lport *); + +/* + * Link is down for the given local port. + */ +void fc_linkdown(struct fc_lport *); + +/* + * Pause and unpause traffic. + */ +void fc_pause(struct fc_lport *); +void fc_unpause(struct fc_lport *); + +/* + * Configure the local port. + */ +int fc_lport_config(struct fc_lport *); + +/* + * Reset the local port. + */ +int fc_lport_reset(struct fc_lport *); + +/* + * Set the mfs or reset + */ +int fc_set_mfs(struct fc_lport *lp, u32 mfs); + + +/** + * REMOTE PORT LAYER + *****************************/ +int fc_rport_init(struct fc_lport *lp); +void fc_rport_terminate_io(struct fc_rport *rp); + +/** + * DISCOVERY LAYER + *****************************/ +int fc_disc_init(struct fc_lport *lp); + + +/** + * SCSI LAYER + *****************************/ +/* + * Initialize the SCSI block of libfc + */ +int fc_fcp_init(struct fc_lport *); + +/* + * This section provides an API which allows direct interaction + * with the SCSI-ml. Each of these functions satisfies a function + * pointer defined in Scsi_Host and therefore is always called + * directly from the SCSI-ml. + */ +int fc_queuecommand(struct scsi_cmnd *sc_cmd, + void (*done)(struct scsi_cmnd *)); + +/* + * complete processing of a fcp packet + * + * This function may sleep if a fsp timer is pending. + * The host lock must not be held by caller. + */ +void fc_fcp_complete(struct fc_fcp_pkt *fsp); + +/* + * Send an ABTS frame to the target device. The sc_cmd argument + * is a pointer to the SCSI command to be aborted. + */ +int fc_eh_abort(struct scsi_cmnd *sc_cmd); + +/* + * Reset a LUN by sending send the tm cmd to the target. + */ +int fc_eh_device_reset(struct scsi_cmnd *sc_cmd); + +/* + * Reset the host adapter. + */ +int fc_eh_host_reset(struct scsi_cmnd *sc_cmd); + +/* + * Check rport status. + */ +int fc_slave_alloc(struct scsi_device *sdev); + +/* + * Adjust the queue depth. + */ +int fc_change_queue_depth(struct scsi_device *sdev, int qdepth); + +/* + * Change the tag type. + */ +int fc_change_queue_type(struct scsi_device *sdev, int tag_type); + +/* + * Free memory pools used by the FCP layer. + */ +void fc_fcp_destroy(struct fc_lport *); + +/** + * ELS/CT interface + *****************************/ +/* + * Initializes ELS/CT interface + */ +int fc_elsct_init(struct fc_lport *lp); + + +/** + * EXCHANGE MANAGER LAYER + *****************************/ +/* + * Initializes Exchange Manager related + * function pointers in struct libfc_function_template. + */ +int fc_exch_init(struct fc_lport *lp); + +/* + * Allocates an Exchange Manager (EM). + * + * The EM manages exchanges for their allocation and + * free, also allows exchange lookup for received + * frame. + * + * The class is used for initializing FC class of + * allocated exchange from EM. + * + * The min_xid and max_xid will limit new + * exchange ID (XID) within this range for + * a new exchange. + * The LLD may choose to have multiple EMs, + * e.g. one EM instance per CPU receive thread in LLD. + * The LLD can use exch_get() of struct libfc_function_template + * to specify XID for a new exchange within + * a specified EM instance. + * + * The em_idx to uniquely identify an EM instance. + */ +struct fc_exch_mgr *fc_exch_mgr_alloc(struct fc_lport *lp, + enum fc_class class, + u16 min_xid, + u16 max_xid); + +/* + * Free an exchange manager. + */ +void fc_exch_mgr_free(struct fc_exch_mgr *mp); + +/* + * Receive a frame on specified local port and exchange manager. + */ +void fc_exch_recv(struct fc_lport *lp, struct fc_exch_mgr *mp, + struct fc_frame *fp); + +/* + * This function is for exch_seq_send function pointer in + * struct libfc_function_template, see comment block on + * exch_seq_send for description of this function. + */ +struct fc_seq *fc_exch_seq_send(struct fc_lport *lp, + struct fc_frame *fp, + void (*resp)(struct fc_seq *sp, + struct fc_frame *fp, + void *arg), + void (*destructor)(struct fc_seq *sp, + void *arg), + void *arg, u32 timer_msec); + +/* + * send a frame using existing sequence and exchange. + */ +int fc_seq_send(struct fc_lport *lp, struct fc_seq *sp, struct fc_frame *fp); + +/* + * Send ELS response using mainly infomation + * in exchange and sequence in EM layer. + */ +void fc_seq_els_rsp_send(struct fc_seq *sp, enum fc_els_cmd els_cmd, + struct fc_seq_els_data *els_data); + +/* + * This function is for seq_exch_abort function pointer in + * struct libfc_function_template, see comment block on + * seq_exch_abort for description of this function. + */ +int fc_seq_exch_abort(const struct fc_seq *req_sp, unsigned int timer_msec); + +/* + * Indicate that an exchange/sequence tuple is complete and the memory + * allocated for the related objects may be freed. + */ +void fc_exch_done(struct fc_seq *sp); + +/* + * Assigns a EM and XID for a frame and then allocates + * a new exchange and sequence pair. + * The fp can be used to determine free XID. + */ +struct fc_exch *fc_exch_get(struct fc_lport *lp, struct fc_frame *fp); + +/* + * Allocate a new exchange and sequence pair. + * if ex_id is zero then next free exchange id + * from specified exchange manger mp will be assigned. + */ +struct fc_exch *fc_exch_alloc(struct fc_exch_mgr *mp, + struct fc_frame *fp, u16 ex_id); +/* + * Start a new sequence on the same exchange as the supplied sequence. + */ +struct fc_seq *fc_seq_start_next(struct fc_seq *sp); + +/* + * Reset an exchange manager, completing all sequences and exchanges. + * If s_id is non-zero, reset only exchanges originating from that FID. + * If d_id is non-zero, reset only exchanges sending to that FID. + */ +void fc_exch_mgr_reset(struct fc_exch_mgr *, u32 s_id, u32 d_id); + +/* + * Functions for fc_functions_template + */ +void fc_get_host_speed(struct Scsi_Host *shost); +void fc_get_host_port_type(struct Scsi_Host *shost); +void fc_get_host_port_state(struct Scsi_Host *shost); +void fc_set_rport_loss_tmo(struct fc_rport *rport, u32 timeout); +struct fc_host_statistics *fc_get_host_stats(struct Scsi_Host *); + +/* + * module setup functions. + */ +int fc_setup_exch_mgr(void); +void fc_destroy_exch_mgr(void); +int fc_setup_rport(void); +void fc_destroy_rport(void); + +#endif /* _LIBFC_H_ */ diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h new file mode 100644 index 0000000..89fdbb9 --- /dev/null +++ b/include/scsi/libfcoe.h @@ -0,0 +1,176 @@ +/* + * Copyright(c) 2007 - 2008 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _LIBFCOE_H +#define _LIBFCOE_H + +#include <linux/netdevice.h> +#include <linux/skbuff.h> +#include <scsi/fc/fc_fcoe.h> +#include <scsi/libfc.h> + +/* + * this percpu struct for fcoe + */ +struct fcoe_percpu_s { + int cpu; + struct task_struct *thread; + struct sk_buff_head fcoe_rx_list; + struct page *crc_eof_page; + int crc_eof_offset; +}; + +/* + * the fcoe sw transport private data + */ +struct fcoe_softc { + struct list_head list; + struct fc_lport *lp; + struct net_device *real_dev; + struct net_device *phys_dev; /* device with ethtool_ops */ + struct packet_type fcoe_packet_type; + struct sk_buff_head fcoe_pending_queue; + + u8 dest_addr[ETH_ALEN]; + u8 ctl_src_addr[ETH_ALEN]; + u8 data_src_addr[ETH_ALEN]; + /* + * fcoe protocol address learning related stuff + */ + u16 flogi_oxid; + u8 flogi_progress; + u8 address_mode; +}; + +static inline struct fcoe_softc *fcoe_softc( + const struct fc_lport *lp) +{ + return (struct fcoe_softc *)lport_priv(lp); +} + +static inline struct net_device *fcoe_netdev( + const struct fc_lport *lp) +{ + return fcoe_softc(lp)->real_dev; +} + +static inline struct fcoe_hdr *skb_fcoe_header(const struct sk_buff *skb) +{ + return (struct fcoe_hdr *)skb_network_header(skb); +} + +static inline int skb_fcoe_offset(const struct sk_buff *skb) +{ + return skb_network_offset(skb); +} + +static inline struct fc_frame_header *skb_fc_header(const struct sk_buff *skb) +{ + return (struct fc_frame_header *)skb_transport_header(skb); +} + +static inline int skb_fc_offset(const struct sk_buff *skb) +{ + return skb_transport_offset(skb); +} + +static inline void skb_reset_fc_header(struct sk_buff *skb) +{ + skb_reset_network_header(skb); + skb_set_transport_header(skb, skb_network_offset(skb) + + sizeof(struct fcoe_hdr)); +} + +static inline bool skb_fc_is_data(const struct sk_buff *skb) +{ + return skb_fc_header(skb)->fh_r_ctl == FC_RCTL_DD_SOL_DATA; +} + +static inline bool skb_fc_is_cmd(const struct sk_buff *skb) +{ + return skb_fc_header(skb)->fh_r_ctl == FC_RCTL_DD_UNSOL_CMD; +} + +static inline bool skb_fc_has_exthdr(const struct sk_buff *skb) +{ + return (skb_fc_header(skb)->fh_r_ctl == FC_RCTL_VFTH) || + (skb_fc_header(skb)->fh_r_ctl == FC_RCTL_IFRH) || + (skb_fc_header(skb)->fh_r_ctl == FC_RCTL_ENCH); +} + +static inline bool skb_fc_is_roff(const struct sk_buff *skb) +{ + return skb_fc_header(skb)->fh_f_ctl[2] & FC_FC_REL_OFF; +} + +static inline u16 skb_fc_oxid(const struct sk_buff *skb) +{ + return be16_to_cpu(skb_fc_header(skb)->fh_ox_id); +} + +static inline u16 skb_fc_rxid(const struct sk_buff *skb) +{ + return be16_to_cpu(skb_fc_header(skb)->fh_rx_id); +} + +/* FIXME - DMA_BIDIRECTIONAL ? */ +#define skb_cb(skb) ((struct fcoe_rcv_info *)&((skb)->cb[0])) +#define skb_cmd(skb) (skb_cb(skb)->fr_cmd) +#define skb_dir(skb) (skb_cmd(skb)->sc_data_direction) +static inline bool skb_fc_is_read(const struct sk_buff *skb) +{ + if (skb_fc_is_cmd(skb) && skb_cmd(skb)) + return skb_dir(skb) == DMA_FROM_DEVICE; + return false; +} + +static inline bool skb_fc_is_write(const struct sk_buff *skb) +{ + if (skb_fc_is_cmd(skb) && skb_cmd(skb)) + return skb_dir(skb) == DMA_TO_DEVICE; + return false; +} + +/* libfcoe funcs */ +int fcoe_reset(struct Scsi_Host *shost); +u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN], + unsigned int scheme, unsigned int port); + +u32 fcoe_fc_crc(struct fc_frame *fp); +int fcoe_xmit(struct fc_lport *, struct fc_frame *); +int fcoe_rcv(struct sk_buff *, struct net_device *, + struct packet_type *, struct net_device *); + +int fcoe_percpu_receive_thread(void *arg); +void fcoe_clean_pending_queue(struct fc_lport *lp); +void fcoe_percpu_clean(struct fc_lport *lp); +void fcoe_watchdog(ulong vp); +int fcoe_link_ok(struct fc_lport *lp); + +struct fc_lport *fcoe_hostlist_lookup(const struct net_device *); +int fcoe_hostlist_add(const struct fc_lport *); +int fcoe_hostlist_remove(const struct fc_lport *); + +struct Scsi_Host *fcoe_host_alloc(struct scsi_host_template *, int); +int fcoe_libfc_config(struct fc_lport *, struct libfc_function_template *); + +/* fcoe sw hba */ +int __init fcoe_sw_init(void); +int __exit fcoe_sw_exit(void); +#endif /* _LIBFCOE_H */ diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 61e53f1..7360e19 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -30,6 +30,7 @@ #include <linux/workqueue.h> #include <scsi/iscsi_proto.h> #include <scsi/iscsi_if.h> +#include <scsi/scsi_transport_iscsi.h> struct scsi_transport_template; struct scsi_host_template; @@ -70,12 +71,12 @@ enum { /* Connection suspend "bit" */ #define ISCSI_SUSPEND_BIT 1 -#define ISCSI_ITT_MASK (0x1fff) +#define ISCSI_ITT_MASK 0x1fff #define ISCSI_TOTAL_CMDS_MAX 4096 /* this must be a power of two greater than ISCSI_MGMT_CMDS_MAX */ #define ISCSI_TOTAL_CMDS_MIN 16 #define ISCSI_AGE_SHIFT 28 -#define ISCSI_AGE_MASK (0xf << ISCSI_AGE_SHIFT) +#define ISCSI_AGE_MASK 0xf #define ISCSI_ADDRESS_BUF_LEN 64 @@ -93,24 +94,38 @@ enum { ISCSI_TASK_RUNNING, }; +struct iscsi_r2t_info { + __be32 ttt; /* copied from R2T */ + __be32 exp_statsn; /* copied from R2T */ + uint32_t data_length; /* copied from R2T */ + uint32_t data_offset; /* copied from R2T */ + int data_count; /* DATA-Out payload progress */ + int datasn; + /* LLDs should set/update these values */ + int sent; /* R2T sequence progress */ +}; + struct iscsi_task { /* * Because LLDs allocate their hdr differently, this is a pointer * and length to that storage. It must be setup at session * creation time. */ - struct iscsi_cmd *hdr; + struct iscsi_hdr *hdr; unsigned short hdr_max; unsigned short hdr_len; /* accumulated size of hdr used */ + /* copied values in case we need to send tmfs */ + itt_t hdr_itt; + __be32 cmdsn; + uint8_t lun[8]; + int itt; /* this ITT */ - uint32_t unsol_datasn; unsigned imm_count; /* imm-data (bytes) */ - unsigned unsol_count; /* unsolicited (bytes)*/ /* offset in unsolicited stream (bytes); */ - unsigned unsol_offset; - unsigned data_count; /* remaining Data-Out */ + struct iscsi_r2t_info unsol_r2t; char *data; /* mgmt payload */ + unsigned data_count; struct scsi_cmnd *sc; /* associated SCSI cmd*/ struct iscsi_conn *conn; /* used connection */ @@ -121,6 +136,11 @@ struct iscsi_task { void *dd_data; /* driver/transport data */ }; +static inline int iscsi_task_has_unsol_data(struct iscsi_task *task) +{ + return task->unsol_r2t.data_length > task->unsol_r2t.sent; +} + static inline void* iscsi_next_hdr(struct iscsi_task *task) { return (void*)task->hdr + task->hdr_len; @@ -376,8 +396,9 @@ extern void iscsi_suspend_tx(struct iscsi_conn *conn); * pdu and task processing */ extern void iscsi_update_cmdsn(struct iscsi_session *, struct iscsi_nopin *); -extern void iscsi_prep_unsolicit_data_pdu(struct iscsi_task *, - struct iscsi_data *hdr); +extern void iscsi_prep_data_out_pdu(struct iscsi_task *task, + struct iscsi_r2t_info *r2t, + struct iscsi_data *hdr); extern int iscsi_conn_send_pdu(struct iscsi_cls_conn *, struct iscsi_hdr *, char *, uint32_t); extern int iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *, diff --git a/include/scsi/libiscsi_tcp.h b/include/scsi/libiscsi_tcp.h new file mode 100644 index 0000000..83e32f6 --- /dev/null +++ b/include/scsi/libiscsi_tcp.h @@ -0,0 +1,132 @@ +/* + * iSCSI over TCP/IP Data-Path lib + * + * Copyright (C) 2008 Mike Christie + * Copyright (C) 2008 Red Hat, Inc. All rights reserved. + * maintained by open-iscsi@googlegroups.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published + * by the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * See the file COPYING included with this distribution for more details. + */ + +#ifndef LIBISCSI_TCP_H +#define LIBISCSI_TCP_H + +#include <scsi/libiscsi.h> + +struct iscsi_tcp_conn; +struct iscsi_segment; +struct sk_buff; +struct hash_desc; + +typedef int iscsi_segment_done_fn_t(struct iscsi_tcp_conn *, + struct iscsi_segment *); + +struct iscsi_segment { + unsigned char *data; + unsigned int size; + unsigned int copied; + unsigned int total_size; + unsigned int total_copied; + + struct hash_desc *hash; + unsigned char recv_digest[ISCSI_DIGEST_SIZE]; + unsigned char digest[ISCSI_DIGEST_SIZE]; + unsigned int digest_len; + + struct scatterlist *sg; + void *sg_mapped; + unsigned int sg_offset; + + iscsi_segment_done_fn_t *done; +}; + +/* Socket connection recieve helper */ +struct iscsi_tcp_recv { + struct iscsi_hdr *hdr; + struct iscsi_segment segment; + + /* Allocate buffer for BHS + AHS */ + uint32_t hdr_buf[64]; + + /* copied and flipped values */ + int datalen; +}; + +struct iscsi_tcp_conn { + struct iscsi_conn *iscsi_conn; + void *dd_data; + int stop_stage; /* conn_stop() flag: * + * stop to recover, * + * stop to terminate */ + /* control data */ + struct iscsi_tcp_recv in; /* TCP receive context */ + /* CRC32C (Rx) LLD should set this is they do not offload */ + struct hash_desc *rx_hash; +}; + +struct iscsi_tcp_task { + uint32_t exp_datasn; /* expected target's R2TSN/DataSN */ + int data_offset; + struct iscsi_r2t_info *r2t; /* in progress solict R2T */ + struct iscsi_pool r2tpool; + struct kfifo *r2tqueue; + void *dd_data; +}; + +enum { + ISCSI_TCP_SEGMENT_DONE, /* curr seg has been processed */ + ISCSI_TCP_SKB_DONE, /* skb is out of data */ + ISCSI_TCP_CONN_ERR, /* iscsi layer has fired a conn err */ + ISCSI_TCP_SUSPENDED, /* conn is suspended */ +}; + +extern void iscsi_tcp_hdr_recv_prep(struct iscsi_tcp_conn *tcp_conn); +extern int iscsi_tcp_recv_skb(struct iscsi_conn *conn, struct sk_buff *skb, + unsigned int offset, bool offloaded, int *status); +extern void iscsi_tcp_cleanup_task(struct iscsi_task *task); +extern int iscsi_tcp_task_init(struct iscsi_task *task); +extern int iscsi_tcp_task_xmit(struct iscsi_task *task); + +/* segment helpers */ +extern int iscsi_tcp_recv_segment_is_hdr(struct iscsi_tcp_conn *tcp_conn); +extern int iscsi_tcp_segment_done(struct iscsi_tcp_conn *tcp_conn, + struct iscsi_segment *segment, int recv, + unsigned copied); +extern void iscsi_tcp_segment_unmap(struct iscsi_segment *segment); + +extern void iscsi_segment_init_linear(struct iscsi_segment *segment, + void *data, size_t size, + iscsi_segment_done_fn_t *done, + struct hash_desc *hash); +extern int +iscsi_segment_seek_sg(struct iscsi_segment *segment, + struct scatterlist *sg_list, unsigned int sg_count, + unsigned int offset, size_t size, + iscsi_segment_done_fn_t *done, struct hash_desc *hash); + +/* digest helpers */ +extern void iscsi_tcp_dgst_header(struct hash_desc *hash, const void *hdr, + size_t hdrlen, + unsigned char digest[ISCSI_DIGEST_SIZE]); +extern struct iscsi_cls_conn * +iscsi_tcp_conn_setup(struct iscsi_cls_session *cls_session, int dd_data_size, + uint32_t conn_idx); +extern void iscsi_tcp_conn_teardown(struct iscsi_cls_conn *cls_conn); + +/* misc helpers */ +extern int iscsi_tcp_r2tpool_alloc(struct iscsi_session *session); +extern void iscsi_tcp_r2tpool_free(struct iscsi_session *session); + +extern void iscsi_tcp_conn_get_stats(struct iscsi_cls_conn *cls_conn, + struct iscsi_stats *stats); +#endif /* LIBISCSI_TCP_H */ diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index a37a814..01a4c58 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -159,8 +159,6 @@ struct scsi_device { atomic_t iodone_cnt; atomic_t ioerr_cnt; - int timeout; - struct device sdev_gendev, sdev_dev; @@ -367,10 +365,11 @@ extern int scsi_is_target_device(const struct device *); extern int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, unsigned char *sense, int timeout, int retries, - int flag); + int flag, int *resid); extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd, int data_direction, void *buffer, unsigned bufflen, - struct scsi_sense_hdr *, int timeout, int retries); + struct scsi_sense_hdr *, int timeout, int retries, + int *resid); extern int scsi_execute_async(struct scsi_device *sdev, const unsigned char *cmd, int cmd_len, int data_direction, void *buffer, unsigned bufflen, int use_sg, diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index c667cc3..b50aabe 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -113,10 +113,18 @@ struct iscsi_transport { char *data, uint32_t data_size); void (*get_stats) (struct iscsi_cls_conn *conn, struct iscsi_stats *stats); + int (*init_task) (struct iscsi_task *task); int (*xmit_task) (struct iscsi_task *task); - void (*cleanup_task) (struct iscsi_conn *conn, - struct iscsi_task *task); + void (*cleanup_task) (struct iscsi_task *task); + + int (*alloc_pdu) (struct iscsi_task *task, uint8_t opcode); + int (*xmit_pdu) (struct iscsi_task *task); + int (*init_pdu) (struct iscsi_task *task, unsigned int offset, + unsigned int count); + void (*parse_pdu_itt) (struct iscsi_conn *conn, itt_t itt, + int *index, int *age); + void (*session_recovery_timedout) (struct iscsi_cls_session *session); struct iscsi_endpoint *(*ep_connect) (struct sockaddr *dst_addr, int non_blocking); |
