diff options
Diffstat (limited to 'drivers/target')
23 files changed, 491 insertions, 216 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index b83ec37..78cab13 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -499,6 +499,23 @@ static int iscsit_queue_rsp(struct iscsi_conn *conn, struct iscsi_cmd *cmd) return 0; } +static void iscsit_aborted_task(struct iscsi_conn *conn, struct iscsi_cmd *cmd) +{ + bool scsi_cmd = (cmd->iscsi_opcode == ISCSI_OP_SCSI_CMD); + + spin_lock_bh(&conn->cmd_lock); + if (!list_empty(&cmd->i_conn_node)) + list_del_init(&cmd->i_conn_node); + spin_unlock_bh(&conn->cmd_lock); + + __iscsit_free_cmd(cmd, scsi_cmd, true); +} + +static enum target_prot_op iscsit_get_sup_prot_ops(struct iscsi_conn *conn) +{ + return TARGET_PROT_NORMAL; +} + static struct iscsit_transport iscsi_target_transport = { .name = "iSCSI/TCP", .transport_type = ISCSI_TCP, @@ -513,6 +530,8 @@ static struct iscsit_transport iscsi_target_transport = { .iscsit_response_queue = iscsit_response_queue, .iscsit_queue_data_in = iscsit_queue_rsp, .iscsit_queue_status = iscsit_queue_rsp, + .iscsit_aborted_task = iscsit_aborted_task, + .iscsit_get_sup_prot_ops = iscsit_get_sup_prot_ops, }; static int __init iscsi_target_init_module(void) @@ -1503,6 +1522,16 @@ int iscsit_setup_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd, { u32 payload_length = ntoh24(hdr->dlength); + if (!(hdr->flags & ISCSI_FLAG_CMD_FINAL)) { + pr_err("NopOUT Flag's, Left Most Bit not set, protocol error.\n"); + if (!cmd) + return iscsit_add_reject(conn, ISCSI_REASON_PROTOCOL_ERROR, + (unsigned char *)hdr); + + return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR, + (unsigned char *)hdr); + } + if (hdr->itt == RESERVED_ITT && !(hdr->opcode & ISCSI_OP_IMMEDIATE)) { pr_err("NOPOUT ITT is reserved, but Immediate Bit is" " not set, protocol error.\n"); @@ -2468,6 +2497,7 @@ static void iscsit_build_conn_drop_async_message(struct iscsi_conn *conn) { struct iscsi_cmd *cmd; struct iscsi_conn *conn_p; + bool found = false; /* * Only send a Asynchronous Message on connections whos network @@ -2476,11 +2506,12 @@ static void iscsit_build_conn_drop_async_message(struct iscsi_conn *conn) list_for_each_entry(conn_p, &conn->sess->sess_conn_list, conn_list) { if (conn_p->conn_state == TARG_CONN_STATE_LOGGED_IN) { iscsit_inc_conn_usage_count(conn_p); + found = true; break; } } - if (!conn_p) + if (!found) return; cmd = iscsit_allocate_cmd(conn_p, TASK_RUNNING); diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index 1c0088f..ae03f3e 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -1052,6 +1052,11 @@ TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR); */ DEF_TPG_ATTRIB(default_erl); TPG_ATTR(default_erl, S_IRUGO | S_IWUSR); +/* + * Define iscsi_tpg_attrib_s_t10_pi + */ +DEF_TPG_ATTRIB(t10_pi); +TPG_ATTR(t10_pi, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { &iscsi_tpg_attrib_authentication.attr, @@ -1064,6 +1069,7 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { &iscsi_tpg_attrib_prod_mode_write_protect.attr, &iscsi_tpg_attrib_demo_mode_discovery.attr, &iscsi_tpg_attrib_default_erl.attr, + &iscsi_tpg_attrib_t10_pi.attr, NULL, }; @@ -1815,6 +1821,13 @@ static void lio_queue_tm_rsp(struct se_cmd *se_cmd) iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); } +static void lio_aborted_task(struct se_cmd *se_cmd) +{ + struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); + + cmd->conn->conn_transport->iscsit_aborted_task(cmd->conn, cmd); +} + static char *lio_tpg_get_endpoint_wwn(struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; @@ -1999,6 +2012,7 @@ int iscsi_target_register_configfs(void) fabric->tf_ops.queue_data_in = &lio_queue_data_in; fabric->tf_ops.queue_status = &lio_queue_status; fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp; + fabric->tf_ops.aborted_task = &lio_aborted_task; /* * Setup function pointers for generic logic in target_core_fabric_configfs.c */ diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h index f452398..6960f22 100644 --- a/drivers/target/iscsi/iscsi_target_core.h +++ b/drivers/target/iscsi/iscsi_target_core.h @@ -58,7 +58,8 @@ #define TA_DEMO_MODE_DISCOVERY 1 #define TA_DEFAULT_ERL 0 #define TA_CACHE_CORE_NPS 0 - +/* T10 protection information disabled by default */ +#define TA_DEFAULT_T10_PI 0 #define ISCSI_IOV_DATA_BUFFER 5 @@ -765,6 +766,7 @@ struct iscsi_tpg_attrib { u32 prod_mode_write_protect; u32 demo_mode_discovery; u32 default_erl; + u8 t10_pi; struct iscsi_portal_group *tpg; }; @@ -787,6 +789,7 @@ struct iscsi_np { void *np_context; struct iscsit_transport *np_transport; struct list_head np_list; + struct iscsi_tpg_np *tpg_np; } ____cacheline_aligned; struct iscsi_tpg_np { diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index e29279e..8739b98 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -259,6 +259,7 @@ static int iscsi_login_zero_tsih_s1( { struct iscsi_session *sess = NULL; struct iscsi_login_req *pdu = (struct iscsi_login_req *)buf; + enum target_prot_op sup_pro_ops; int ret; sess = kzalloc(sizeof(struct iscsi_session), GFP_KERNEL); @@ -320,8 +321,9 @@ static int iscsi_login_zero_tsih_s1( kfree(sess); return -ENOMEM; } + sup_pro_ops = conn->conn_transport->iscsit_get_sup_prot_ops(conn); - sess->se_sess = transport_init_session(); + sess->se_sess = transport_init_session(sup_pro_ops); if (IS_ERR(sess->se_sess)) { iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, ISCSI_LOGIN_STATUS_NO_RESOURCES); diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c index 44a5471..eb96b20 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.c +++ b/drivers/target/iscsi/iscsi_target_tpg.c @@ -225,6 +225,7 @@ static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg) a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT; a->demo_mode_discovery = TA_DEMO_MODE_DISCOVERY; a->default_erl = TA_DEFAULT_ERL; + a->t10_pi = TA_DEFAULT_T10_PI; } int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg) @@ -500,6 +501,7 @@ struct iscsi_tpg_np *iscsit_tpg_add_network_portal( init_completion(&tpg_np->tpg_np_comp); kref_init(&tpg_np->tpg_np_kref); tpg_np->tpg_np = np; + np->tpg_np = tpg_np; tpg_np->tpg = tpg; spin_lock(&tpg->tpg_np_lock); @@ -858,3 +860,22 @@ int iscsit_ta_default_erl( return 0; } + +int iscsit_ta_t10_pi( + struct iscsi_portal_group *tpg, + u32 flag) +{ + struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; + + if ((flag != 0) && (flag != 1)) { + pr_err("Illegal value %d\n", flag); + return -EINVAL; + } + + a->t10_pi = flag; + pr_debug("iSCSI_TPG[%hu] - T10 Protection information bit:" + " %s\n", tpg->tpgt, (a->t10_pi) ? + "ON" : "OFF"); + + return 0; +} diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h index 213c0fc..0a182f2 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.h +++ b/drivers/target/iscsi/iscsi_target_tpg.h @@ -39,5 +39,6 @@ extern int iscsit_ta_demo_mode_write_protect(struct iscsi_portal_group *, u32); extern int iscsit_ta_prod_mode_write_protect(struct iscsi_portal_group *, u32); extern int iscsit_ta_demo_mode_discovery(struct iscsi_portal_group *, u32); extern int iscsit_ta_default_erl(struct iscsi_portal_group *, u32); +extern int iscsit_ta_t10_pi(struct iscsi_portal_group *, u32); #endif /* ISCSI_TARGET_TPG_H */ diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index e655b04..53e157c 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -705,8 +705,8 @@ void iscsit_release_cmd(struct iscsi_cmd *cmd) } EXPORT_SYMBOL(iscsit_release_cmd); -static void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool scsi_cmd, - bool check_queues) +void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool scsi_cmd, + bool check_queues) { struct iscsi_conn *conn = cmd->conn; diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h index 561a424..a68508c 100644 --- a/drivers/target/iscsi/iscsi_target_util.h +++ b/drivers/target/iscsi/iscsi_target_util.h @@ -30,6 +30,7 @@ extern void iscsit_remove_cmd_from_tx_queues(struct iscsi_cmd *, struct iscsi_co extern bool iscsit_conn_all_queues_empty(struct iscsi_conn *); extern void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *); extern void iscsit_release_cmd(struct iscsi_cmd *); +extern void __iscsit_free_cmd(struct iscsi_cmd *, bool, bool); extern void iscsit_free_cmd(struct iscsi_cmd *, bool); extern int iscsit_check_session_usage_count(struct iscsi_session *); extern void iscsit_dec_session_usage_count(struct iscsi_session *); diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index fadad7c..c886ad1 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -212,6 +212,10 @@ static void tcm_loop_submission_work(struct work_struct *work) se_cmd->se_cmd_flags |= SCF_BIDI; } + + if (!scsi_prot_sg_count(sc) && scsi_get_prot_op(sc) != SCSI_PROT_NORMAL) + se_cmd->prot_pto = true; + rc = target_submit_cmd_map_sgls(se_cmd, tl_nexus->se_sess, sc->cmnd, &tl_cmd->tl_sense_buf[0], tl_cmd->sc->device->lun, scsi_bufflen(sc), tcm_loop_sam_attr(sc), @@ -915,6 +919,11 @@ static void tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd) wake_up(&tl_tmr->tl_tmr_wait); } +static void tcm_loop_aborted_task(struct se_cmd *se_cmd) +{ + return; +} + static char *tcm_loop_dump_proto_id(struct tcm_loop_hba *tl_hba) { switch (tl_hba->tl_proto_id) { @@ -1009,7 +1018,7 @@ static int tcm_loop_make_nexus( /* * Initialize the struct se_session pointer */ - tl_nexus->se_sess = transport_init_session(); + tl_nexus->se_sess = transport_init_session(TARGET_PROT_ALL); if (IS_ERR(tl_nexus->se_sess)) { ret = PTR_ERR(tl_nexus->se_sess); goto out; @@ -1483,6 +1492,7 @@ static int tcm_loop_register_configfs(void) fabric->tf_ops.queue_data_in = &tcm_loop_queue_data_in; fabric->tf_ops.queue_status = &tcm_loop_queue_status; fabric->tf_ops.queue_tm_rsp = &tcm_loop_queue_tm_rsp; + fabric->tf_ops.aborted_task = &tcm_loop_aborted_task; /* * Setup function pointers for generic logic in target_core_fabric_configfs.c diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c index 24884ca..e7e9372 100644 --- a/drivers/target/sbp/sbp_target.c +++ b/drivers/target/sbp/sbp_target.c @@ -210,7 +210,7 @@ static struct sbp_session *sbp_session_create( return ERR_PTR(-ENOMEM); } - sess->se_sess = transport_init_session(); + sess->se_sess = transport_init_session(TARGET_PROT_NORMAL); if (IS_ERR(sess->se_sess)) { pr_err("failed to init se_session\n"); @@ -1846,6 +1846,11 @@ static void sbp_queue_tm_rsp(struct se_cmd *se_cmd) { } +static void sbp_aborted_task(struct se_cmd *se_cmd) +{ + return; +} + static int sbp_check_stop_free(struct se_cmd *se_cmd) { struct sbp_target_request *req = container_of(se_cmd, @@ -2526,6 +2531,7 @@ static struct target_core_fabric_ops sbp_ops = { .queue_data_in = sbp_queue_data_in, .queue_status = sbp_queue_status, .queue_tm_rsp = sbp_queue_tm_rsp, + .aborted_task = sbp_aborted_task, .check_stop_free = sbp_check_stop_free, .fabric_make_wwn = sbp_make_tport, diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index c3d9df6..fcbe612 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -455,11 +455,26 @@ out: return rc; } -static inline int core_alua_state_nonoptimized( +static inline void set_ascq(struct se_cmd *cmd, u8 alua_ascq) +{ + /* + * Set SCSI additional sense code (ASC) to 'LUN Not Accessible'; + * The ALUA additional sense code qualifier (ASCQ) is determined + * by the ALUA primary or secondary access state.. + */ + pr_debug("[%s]: ALUA TG Port not available, " + "SenseKey: NOT_READY, ASC/ASCQ: " + "0x04/0x%02x\n", + cmd->se_tfo->get_fabric_name(), alua_ascq); + + cmd->scsi_asc = 0x04; + cmd->scsi_ascq = alua_ascq; +} + +static inline void core_alua_state_nonoptimized( struct se_cmd *cmd, unsigned char *cdb, - int nonop_delay_msecs, - u8 *alua_ascq) + int nonop_delay_msecs) { /* * Set SCF_ALUA_NON_OPTIMIZED here, this value will be checked @@ -468,13 +483,11 @@ static inline int core_alua_state_nonoptimized( */ cmd->se_cmd_flags |= SCF_ALUA_NON_OPTIMIZED; cmd->alua_nonop_delay = nonop_delay_msecs; - return 0; } static inline int core_alua_state_lba_dependent( struct se_cmd *cmd, - struct t10_alua_tg_pt_gp *tg_pt_gp, - u8 *alua_ascq) + struct t10_alua_tg_pt_gp *tg_pt_gp) { struct se_device *dev = cmd->se_dev; u64 segment_size, segment_mult, sectors, lba; @@ -520,7 +533,7 @@ static inline int core_alua_state_lba_dependent( } if (!cur_map) { spin_unlock(&dev->t10_alua.lba_map_lock); - *alua_ascq = ASCQ_04H_ALUA_TG_PT_UNAVAILABLE; + set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_UNAVAILABLE); return 1; } list_for_each_entry(map_mem, &cur_map->lba_map_mem_list, @@ -531,11 +544,11 @@ static inline int core_alua_state_lba_dependent( switch(map_mem->lba_map_mem_alua_state) { case ALUA_ACCESS_STATE_STANDBY: spin_unlock(&dev->t10_alua.lba_map_lock); - *alua_ascq = ASCQ_04H_ALUA_TG_PT_STANDBY; + set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_STANDBY); return 1; case ALUA_ACCESS_STATE_UNAVAILABLE: spin_unlock(&dev->t10_alua.lba_map_lock); - *alua_ascq = ASCQ_04H_ALUA_TG_PT_UNAVAILABLE; + set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_UNAVAILABLE); return 1; default: break; @@ -548,8 +561,7 @@ static inline int core_alua_state_lba_dependent( static inline int core_alua_state_standby( struct se_cmd *cmd, - unsigned char *cdb, - u8 *alua_ascq) + unsigned char *cdb) { /* * Allowed CDBs for ALUA_ACCESS_STATE_STANDBY as defined by @@ -570,7 +582,7 @@ static inline int core_alua_state_standby( case MI_REPORT_TARGET_PGS: return 0; default: - *alua_ascq = ASCQ_04H_ALUA_TG_PT_STANDBY; + set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_STANDBY); return 1; } case MAINTENANCE_OUT: @@ -578,7 +590,7 @@ static inline int core_alua_state_standby( case MO_SET_TARGET_PGS: return 0; default: - *alua_ascq = ASCQ_04H_ALUA_TG_PT_STANDBY; + set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_STANDBY); return 1; } case REQUEST_SENSE: @@ -588,7 +600,7 @@ static inline int core_alua_state_standby( case WRITE_BUFFER: return 0; default: - *alua_ascq = ASCQ_04H_ALUA_TG_PT_STANDBY; + set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_STANDBY); return 1; } @@ -597,8 +609,7 @@ static inline int core_alua_state_standby( static inline int core_alua_state_unavailable( struct se_cmd *cmd, - unsigned char *cdb, - u8 *alua_ascq) + unsigned char *cdb) { /* * Allowed CDBs for ALUA_ACCESS_STATE_UNAVAILABLE as defined by @@ -613,7 +624,7 @@ static inline int core_alua_state_unavailable( case MI_REPORT_TARGET_PGS: return 0; default: - *alua_ascq = ASCQ_04H_ALUA_TG_PT_UNAVAILABLE; + set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_UNAVAILABLE); return 1; } case MAINTENANCE_OUT: @@ -621,7 +632,7 @@ static inline int core_alua_state_unavailable( case MO_SET_TARGET_PGS: return 0; default: - *alua_ascq = ASCQ_04H_ALUA_TG_PT_UNAVAILABLE; + set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_UNAVAILABLE); return 1; } case REQUEST_SENSE: @@ -629,7 +640,7 @@ static inline int core_alua_state_unavailable( case WRITE_BUFFER: return 0; default: - *alua_ascq = ASCQ_04H_ALUA_TG_PT_UNAVAILABLE; + set_ascq(cmd, ASCQ_04H_ALUA_TG_PT_UNAVAILABLE); return 1; } @@ -638,8 +649,7 @@ static inline int core_alua_state_unavailable( static inline int core_alua_state_transition( struct se_cmd *cmd, - unsigned char *cdb, - u8 *alua_ascq) + unsigned char *cdb) { /* * Allowed CDBs for ALUA_ACCESS_STATE_TRANSITION as defined by @@ -654,7 +664,7 @@ static inline int core_alua_state_transition( case MI_REPORT_TARGET_PGS: return 0; default: - *alua_ascq = ASCQ_04H_ALUA_STATE_TRANSITION; + set_ascq(cmd, ASCQ_04H_ALUA_STATE_TRANSITION); return 1; } case REQUEST_SENSE: @@ -662,7 +672,7 @@ static inline int core_alua_state_transition( case WRITE_BUFFER: return 0; default: - *alua_ascq = ASCQ_04H_ALUA_STATE_TRANSITION; + set_ascq(cmd, ASCQ_04H_ALUA_STATE_TRANSITION); return 1; } @@ -684,8 +694,6 @@ target_alua_state_check(struct se_cmd *cmd) struct t10_alua_tg_pt_gp *tg_pt_gp; struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem; int out_alua_state, nonop_delay_msecs; - u8 alua_ascq; - int ret; if (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE) return 0; @@ -701,9 +709,8 @@ target_alua_state_check(struct se_cmd *cmd) if (atomic_read(&port->sep_tg_pt_secondary_offline)) { pr_debug("ALUA: Got secondary offline status for local" " target port\n"); - alua_ascq = ASCQ_04H_ALUA_OFFLINE; - ret = 1; - goto out; + set_ascq(cmd, ASCQ_04H_ALUA_OFFLINE); + return TCM_CHECK_CONDITION_NOT_READY; } /* * Second, obtain the struct t10_alua_tg_pt_gp_member pointer to the @@ -731,20 +738,23 @@ target_alua_state_check(struct se_cmd *cmd) switch (out_alua_state) { case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED: - ret = core_alua_state_nonoptimized(cmd, cdb, - nonop_delay_msecs, &alua_ascq); + core_alua_state_nonoptimized(cmd, cdb, nonop_delay_msecs); break; case ALUA_ACCESS_STATE_STANDBY: - ret = core_alua_state_standby(cmd, cdb, &alua_ascq); + if (core_alua_state_standby(cmd, cdb)) + return TCM_CHECK_CONDITION_NOT_READY; break; case ALUA_ACCESS_STATE_UNAVAILABLE: - ret = core_alua_state_unavailable(cmd, cdb, &alua_ascq); + if (core_alua_state_unavailable(cmd, cdb)) + return TCM_CHECK_CONDITION_NOT_READY; break; case ALUA_ACCESS_STATE_TRANSITION: - ret = core_alua_state_transition(cmd, cdb, &alua_ascq); + if (core_alua_state_transition(cmd, cdb)) + return TCM_CHECK_CONDITION_NOT_READY; break; case ALUA_ACCESS_STATE_LBA_DEPENDENT: - ret = core_alua_state_lba_dependent(cmd, tg_pt_gp, &alua_ascq); + if (core_alua_state_lba_dependent(cmd, tg_pt_gp)) + return TCM_CHECK_CONDITION_NOT_READY; break; /* * OFFLINE is a secondary ALUA target port group access state, that is @@ -757,23 +767,6 @@ target_alua_state_check(struct se_cmd *cmd) return TCM_INVALID_CDB_FIELD; } -out: - if (ret > 0) { - /* - * Set SCSI additional sense code (ASC) to 'LUN Not Accessible'; - * The ALUA additional sense code qualifier (ASCQ) is determined - * by the ALUA primary or secondary access state.. - */ - pr_debug("[%s]: ALUA TG Port not available, " - "SenseKey: NOT_READY, ASC/ASCQ: " - "0x04/0x%02x\n", - cmd->se_tfo->get_fabric_name(), alua_ascq); - - cmd->scsi_asc = 0x04; - cmd->scsi_ascq = alua_ascq; - return TCM_CHECK_CONDITION_NOT_READY; - } - return 0; } diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index f0e85b1..60a9ae6 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -457,6 +457,10 @@ static int target_fabric_tf_ops_check( pr_err("Missing tfo->queue_tm_rsp()\n"); return -EINVAL; } + if (!tfo->aborted_task) { + pr_err("Missing tfo->aborted_task()\n"); + return -EINVAL; + } /* * We at least require tfo->fabric_make_wwn(), tfo->fabric_drop_wwn() * tfo->fabric_make_tpg() and tfo->fabric_drop_tpg() in diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index cf991a9..7d6cdda 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -854,25 +854,6 @@ static int fd_init_prot(struct se_device *dev) return 0; } -static void fd_init_format_buf(struct se_device *dev, unsigned char *buf, - u32 unit_size, u32 *ref_tag, u16 app_tag, - bool inc_reftag) -{ - unsigned char *p = buf; - int i; - - for (i = 0; i < unit_size; i += dev->prot_length) { - *((u16 *)&p[0]) = 0xffff; - *((__be16 *)&p[2]) = cpu_to_be16(app_tag); - *((__be32 *)&p[4]) = cpu_to_be32(*ref_tag); - - if (inc_reftag) - (*ref_tag)++; - - p += dev->prot_length; - } -} - static int fd_format_prot(struct se_device *dev) { struct fd_dev *fd_dev = FD_DEV(dev); @@ -880,10 +861,8 @@ static int fd_format_prot(struct se_device *dev) sector_t prot_length, prot; unsigned char *buf; loff_t pos = 0; - u32 ref_tag = 0; int unit_size = FDBD_FORMAT_UNIT_SIZE * dev->dev_attrib.block_size; int rc, ret = 0, size, len; - bool inc_reftag = false; if (!dev->dev_attrib.pi_prot_type) { pr_err("Unable to format_prot while pi_prot_type == 0\n"); @@ -894,37 +873,20 @@ static int fd_format_prot(struct se_device *dev) return -ENODEV; } - switch (dev->dev_attrib.pi_prot_type) { - case TARGET_DIF_TYPE3_PROT: - ref_tag = 0xffffffff; - break; - case TARGET_DIF_TYPE2_PROT: - case TARGET_DIF_TYPE1_PROT: - inc_reftag = true; - break; - default: - break; - } - buf = vzalloc(unit_size); if (!buf) { pr_err("Unable to allocate FILEIO prot buf\n"); return -ENOMEM; } - prot_length = (dev->transport->get_blocks(dev) + 1) * dev->prot_length; size = prot_length; pr_debug("Using FILEIO prot_length: %llu\n", (unsigned long long)prot_length); + memset(buf, 0xff, unit_size); for (prot = 0; prot < prot_length; prot += unit_size) { - - fd_init_format_buf(dev, buf, unit_size, &ref_tag, 0xffff, - inc_reftag); - len = min(unit_size, size); - rc = kernel_write(prot_fd, buf, len, pos); if (rc != len) { pr_err("vfs_write to prot file failed: %d\n", rc); diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 554d4f7..9e0232cc 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -203,10 +203,9 @@ static void iblock_free_device(struct se_device *dev) if (ib_dev->ibd_bd != NULL) blkdev_put(ib_dev->ibd_bd, FMODE_WRITE|FMODE_READ|FMODE_EXCL); - if (ib_dev->ibd_bio_set != NULL) { - bioset_integrity_free(ib_dev->ibd_bio_set); + if (ib_dev->ibd_bio_set != NULL) bioset_free(ib_dev->ibd_bio_set); - } + kfree(ib_dev); } diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index 66a5aba..b920db3 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -242,7 +242,7 @@ static void rd_release_prot_space(struct rd_dev *rd_dev) rd_dev->sg_prot_count = 0; } -static int rd_build_prot_space(struct rd_dev *rd_dev, int prot_length) +static int rd_build_prot_space(struct rd_dev *rd_dev, int prot_length, int block_size) { struct rd_dev_sg_table *sg_table; u32 total_sg_needed, sg_tables; @@ -252,8 +252,13 @@ static int rd_build_prot_space(struct rd_dev *rd_dev, int prot_length) if (rd_dev->rd_flags & RDF_NULLIO) return 0; - - total_sg_needed = rd_dev->rd_page_count / prot_length; + /* + * prot_length=8byte dif data + * tot sg needed = rd_page_count * (PGSZ/block_size) * + * (prot_length/block_size) + pad + * PGSZ canceled each other. + */ + total_sg_needed = (rd_dev->rd_page_count * prot_length / block_size) + 1; sg_tables = (total_sg_needed / max_sg_per_table) + 1; @@ -606,7 +611,8 @@ static int rd_init_prot(struct se_device *dev) if (!dev->dev_attrib.pi_prot_type) return 0; - return rd_build_prot_space(rd_dev, dev->prot_length); + return rd_build_prot_space(rd_dev, dev->prot_length, + dev->dev_attrib.block_size); } static void rd_free_prot(struct se_device *dev) diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index 77e6531..e022959 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -89,6 +89,7 @@ static sense_reason_t sbc_emulate_readcapacity_16(struct se_cmd *cmd) { struct se_device *dev = cmd->se_dev; + struct se_session *sess = cmd->se_sess; unsigned char *rbuf; unsigned char buf[32]; unsigned long long blocks = dev->transport->get_blocks(dev); @@ -109,8 +110,10 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd) /* * Set P_TYPE and PROT_EN bits for DIF support */ - if (dev->dev_attrib.pi_prot_type) - buf[12] = (dev->dev_attrib.pi_prot_type - 1) << 1 | 0x1; + if (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) { + if (dev->dev_attrib.pi_prot_type) + buf[12] = (dev->dev_attrib.pi_prot_type - 1) << 1 | 0x1; + } if (dev->transport->get_lbppbe) buf[13] = dev->transport->get_lbppbe(dev) & 0x0f; @@ -425,13 +428,14 @@ static sense_reason_t compare_and_write_callback(struct se_cmd *cmd) goto out; } - write_sg = kzalloc(sizeof(struct scatterlist) * cmd->t_data_nents, + write_sg = kmalloc(sizeof(struct scatterlist) * cmd->t_data_nents, GFP_KERNEL); if (!write_sg) { pr_err("Unable to allocate compare_and_write sg\n"); ret = TCM_OUT_OF_RESOURCES; goto out; } + sg_init_table(write_sg, cmd->t_data_nents); /* * Setup verify and write data payloads from total NumberLBAs. */ @@ -569,30 +573,85 @@ sbc_compare_and_write(struct se_cmd *cmd) return TCM_NO_SENSE; } +static int +sbc_set_prot_op_checks(u8 protect, enum target_prot_type prot_type, + bool is_write, struct se_cmd *cmd) +{ + if (is_write) { + cmd->prot_op = protect ? TARGET_PROT_DOUT_PASS : + TARGET_PROT_DOUT_INSERT; + switch (protect) { + case 0x0: + case 0x3: + cmd->prot_checks = 0; + break; + case 0x1: + case 0x5: + cmd->prot_checks = TARGET_DIF_CHECK_GUARD; + if (prot_type == TARGET_DIF_TYPE1_PROT) + cmd->prot_checks |= TARGET_DIF_CHECK_REFTAG; + break; + case 0x2: + if (prot_type == TARGET_DIF_TYPE1_PROT) + cmd->prot_checks = TARGET_DIF_CHECK_REFTAG; + break; + case 0x4: + cmd->prot_checks = TARGET_DIF_CHECK_GUARD; + break; + default: + pr_err("Unsupported protect field %d\n", protect); + return -EINVAL; + } + } else { + cmd->prot_op = protect ? TARGET_PROT_DIN_PASS : + TARGET_PROT_DIN_STRIP; + switch (protect) { + case 0x0: + case 0x1: + case 0x5: + cmd->prot_checks = TARGET_DIF_CHECK_GUARD; + if (prot_type == TARGET_DIF_TYPE1_PROT) + cmd->prot_checks |= TARGET_DIF_CHECK_REFTAG; + break; + case 0x2: + if (prot_type == TARGET_DIF_TYPE1_PROT) + cmd->prot_checks = TARGET_DIF_CHECK_REFTAG; + break; + case 0x3: + cmd->prot_checks = 0; + break; + case 0x4: + cmd->prot_checks = TARGET_DIF_CHECK_GUARD; + break; + default: + pr_err("Unsupported protect field %d\n", protect); + return -EINVAL; + } + } + + return 0; +} + static bool sbc_check_prot(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb, - u32 sectors) + u32 sectors, bool is_write) { - if (!cmd->t_prot_sg || !cmd->t_prot_nents) + u8 protect = cdb[1] >> 5; + + if ((!cmd->t_prot_sg || !cmd->t_prot_nents) && cmd->prot_pto) return true; switch (dev->dev_attrib.pi_prot_type) { case TARGET_DIF_TYPE3_PROT: - if (!(cdb[1] & 0xe0)) - return true; - cmd->reftag_seed = 0xffffffff; break; case TARGET_DIF_TYPE2_PROT: - if (cdb[1] & 0xe0) + if (protect) return false; cmd->reftag_seed = cmd->t_task_lba; break; case TARGET_DIF_TYPE1_PROT: - if (!(cdb[1] & 0xe0)) - return true; - cmd->reftag_seed = cmd->t_task_lba; break; case TARGET_DIF_TYPE0_PROT: @@ -600,9 +659,15 @@ sbc_check_prot(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb, return true; } + if (sbc_set_prot_op_checks(protect, dev->dev_attrib.pi_prot_type, + is_write, cmd)) + return false; + cmd->prot_type = dev->dev_attrib.pi_prot_type; cmd->prot_length = dev->prot_length * sectors; - cmd->prot_handover = PROT_SEPERATED; + pr_debug("%s: prot_type=%d, prot_length=%d prot_op=%d prot_checks=%d\n", + __func__, cmd->prot_type, cmd->prot_length, + cmd->prot_op, cmd->prot_checks); return true; } @@ -628,7 +693,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) sectors = transport_get_sectors_10(cdb); cmd->t_task_lba = transport_lba_32(cdb); - if (!sbc_check_prot(dev, cmd, cdb, sectors)) + if (!sbc_check_prot(dev, cmd, cdb, sectors, false)) return TCM_UNSUPPORTED_SCSI_OPCODE; cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; @@ -639,7 +704,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) sectors = transport_get_sectors_12(cdb); cmd->t_task_lba = transport_lba_32(cdb); - if (!sbc_check_prot(dev, cmd, cdb, sectors)) + if (!sbc_check_prot(dev, cmd, cdb, sectors, false)) return TCM_UNSUPPORTED_SCSI_OPCODE; cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; @@ -650,7 +715,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) sectors = transport_get_sectors_16(cdb); cmd->t_task_lba = transport_lba_64(cdb); - if (!sbc_check_prot(dev, cmd, cdb, sectors)) + if (!sbc_check_prot(dev, cmd, cdb, sectors, false)) return TCM_UNSUPPORTED_SCSI_OPCODE; cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB; @@ -669,7 +734,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) sectors = transport_get_sectors_10(cdb); cmd->t_task_lba = transport_lba_32(cdb); - if (!sbc_check_prot(dev, cmd, cdb, sectors)) + if (!sbc_check_prot(dev, cmd, cdb, sectors, true)) return TCM_UNSUPPORTED_SCSI_OPCODE; if (cdb[1] & 0x8) @@ -682,7 +747,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) sectors = transport_get_sectors_12(cdb); cmd->t_task_lba = transport_lba_32(cdb); - if (!sbc_check_prot(dev, cmd, cdb, sectors)) + if (!sbc_check_prot(dev, cmd, cdb, sectors, true)) return TCM_UNSUPPORTED_SCSI_OPCODE; if (cdb[1] & 0x8) @@ -695,7 +760,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) sectors = transport_get_sectors_16(cdb); cmd->t_task_lba = transport_lba_64(cdb); - if (!sbc_check_prot(dev, cmd, cdb, sectors)) + if (!sbc_check_prot(dev, cmd, cdb, sectors, true)) return TCM_UNSUPPORTED_SCSI_OPCODE; if (cdb[1] & 0x8) @@ -1031,6 +1096,50 @@ err: } EXPORT_SYMBOL(sbc_execute_unmap); +void +sbc_dif_generate(struct se_cmd *cmd) +{ + struct se_device *dev = cmd->se_dev; + struct se_dif_v1_tuple *sdt; + struct scatterlist *dsg, *psg = cmd->t_prot_sg; + sector_t sector = cmd->t_task_lba; + void *daddr, *paddr; + int i, j, offset = 0; + + for_each_sg(cmd->t_data_sg, dsg, cmd->t_data_nents, i) { + daddr = kmap_atomic(sg_page(dsg)) + dsg->offset; + paddr = kmap_atomic(sg_page(psg)) + psg->offset; + + for (j = 0; j < dsg->length; j += dev->dev_attrib.block_size) { + + if (offset >= psg->length) { + kunmap_atomic(paddr); + psg = sg_next(psg); + paddr = kmap_atomic(sg_page(psg)) + psg->offset; + offset = 0; + } + + sdt = paddr + offset; + sdt->guard_tag = cpu_to_be16(crc_t10dif(daddr + j, + dev->dev_attrib.block_size)); + if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE1_PROT) + sdt->ref_tag = cpu_to_be32(sector & 0xffffffff); + sdt->app_tag = 0; + + pr_debug("DIF WRITE INSERT sector: %llu guard_tag: 0x%04x" + " app_tag: 0x%04x ref_tag: %u\n", + (unsigned long long)sector, sdt->guard_tag, + sdt->app_tag, be32_to_cpu(sdt->ref_tag)); + + sector++; + offset += sizeof(struct se_dif_v1_tuple); + } + + kunmap_atomic(paddr); + kunmap_atomic(daddr); + } +} + static sense_reason_t sbc_dif_v1_verify(struct se_device *dev, struct se_dif_v1_tuple *sdt, const void *p, sector_t sector, unsigned int ei_lba) @@ -1162,9 +1271,9 @@ sbc_dif_verify_write(struct se_cmd *cmd, sector_t start, unsigned int sectors, } EXPORT_SYMBOL(sbc_dif_verify_write); -sense_reason_t -sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors, - unsigned int ei_lba, struct scatterlist *sg, int sg_off) +static sense_reason_t +__sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors, + unsigned int ei_lba, struct scatterlist *sg, int sg_off) { struct se_device *dev = cmd->se_dev; struct se_dif_v1_tuple *sdt; @@ -1217,8 +1326,31 @@ sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors, kunmap_atomic(paddr); kunmap_atomic(daddr); } - sbc_dif_copy_prot(cmd, sectors, true, sg, sg_off); return 0; } + +sense_reason_t +sbc_dif_read_strip(struct se_cmd *cmd) +{ + struct se_device *dev = cmd->se_dev; + u32 sectors = cmd->prot_length / dev->prot_length; + + return __sbc_dif_verify_read(cmd, cmd->t_task_lba, sectors, 0, + cmd->t_prot_sg, 0); +} + +sense_reason_t +sbc_dif_verify_read(struct se_cmd *cmd, sector_t start, unsigned int sectors, + unsigned int ei_lba, struct scatterlist *sg, int sg_off) +{ + sense_reason_t rc; + + rc = __sbc_dif_verify_read(cmd, start, sectors, ei_lba, sg, sg_off); + if (rc) + return rc; + + sbc_dif_copy_prot(cmd, sectors, true, sg, sg_off); + return 0; +} EXPORT_SYMBOL(sbc_dif_verify_read); diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 3bebc71..8653666 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -71,6 +71,7 @@ spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf) { struct se_lun *lun = cmd->se_lun; struct se_device *dev = cmd->se_dev; + struct se_session *sess = cmd->se_sess; /* Set RMB (removable media) for tape devices */ if (dev->transport->get_device_type(dev) == TYPE_TAPE) @@ -101,10 +102,13 @@ spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf) if (dev->dev_attrib.emulate_3pc) buf[5] |= 0x8; /* - * Set Protection (PROTECT) bit when DIF has been enabled. + * Set Protection (PROTECT) bit when DIF has been enabled on the + * device, and the transport supports VERIFY + PASS. */ - if (dev->dev_attrib.pi_prot_type) - buf[5] |= 0x1; + if (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) { + if (dev->dev_attrib.pi_prot_type) + buf[5] |= 0x1; + } buf[7] = 0x2; /* CmdQue=1 */ @@ -473,16 +477,19 @@ static sense_reason_t spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf) { struct se_device *dev = cmd->se_dev; + struct se_session *sess = cmd->se_sess; buf[3] = 0x3c; /* * Set GRD_CHK + REF_CHK for TYPE1 protection, or GRD_CHK * only for TYPE3 protection. */ - if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE1_PROT) - buf[4] = 0x5; - else if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE3_PROT) - buf[4] = 0x4; + if (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) { + if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE1_PROT) + buf[4] = 0x5; + else if (dev->dev_attrib.pi_prot_type == TARGET_DIF_TYPE3_PROT) + buf[4] = 0x4; + } /* Set HEADSUP, ORDSUP, SIMPSUP */ buf[5] = 0x07; @@ -762,7 +769,7 @@ out: return ret; } -static int spc_modesense_rwrecovery(struct se_device *dev, u8 pc, u8 *p) +static int spc_modesense_rwrecovery(struct se_cmd *cmd, u8 pc, u8 *p) { p[0] = 0x01; p[1] = 0x0a; @@ -775,8 +782,11 @@ out: return 12; } -static int spc_modesense_control(struct se_device *dev, u8 pc, u8 *p) +static int spc_modesense_control(struct se_cmd *cmd, u8 pc, u8 *p) { + struct se_device *dev = cmd->se_dev; + struct se_session *sess = cmd->se_sess; + p[0] = 0x0a; p[1] = 0x0a; @@ -868,8 +878,10 @@ static int spc_modesense_control(struct se_device *dev, u8 pc, u8 *p) * type, shall not modify the contents of the LOGICAL BLOCK REFERENCE * TAG field. */ - if (dev->dev_attrib.pi_prot_type) - p[5] |= 0x80; + if (sess->sup_prot_ops & (TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS)) { + if (dev->dev_attrib.pi_prot_type) + p[5] |= 0x80; + } p[8] = 0xff; p[9] = 0xff; @@ -879,8 +891,10 @@ out: return 12; } -static int spc_modesense_caching(struct se_device *dev, u8 pc, u8 *p) +static int spc_modesense_caching(struct se_cmd *cmd, u8 pc, u8 *p) { + struct se_device *dev = cmd->se_dev; + p[0] = 0x08; p[1] = 0x12; @@ -896,7 +910,7 @@ out: return 20; } -static int spc_modesense_informational_exceptions(struct se_device *dev, u8 pc, unsigned char *p) +static int spc_modesense_informational_exceptions(struct se_cmd *cmd, u8 pc, unsigned char *p) { p[0] = 0x1c; p[1] = 0x0a; @@ -912,7 +926,7 @@ out: static struct { uint8_t page; uint8_t subpage; - int (*emulate)(struct se_device *, u8, unsigned char *); + int (*emulate)(struct se_cmd *, u8, unsigned char *); } modesense_handlers[] = { { .page = 0x01, .subpage = 0x00, .emulate = spc_modesense_rwrecovery }, { .page = 0x08, .subpage = 0x00, .emulate = spc_modesense_caching }, @@ -1050,7 +1064,7 @@ static sense_reason_t spc_emulate_modesense(struct se_cmd *cmd) * the only two possibilities). */ if ((modesense_handlers[i].subpage & ~subpage) == 0) { - ret = modesense_handlers[i].emulate(dev, pc, &buf[length]); + ret = modesense_handlers[i].emulate(cmd, pc, &buf[length]); if (!ten && length + ret >= 255) break; length += ret; @@ -1063,7 +1077,7 @@ static sense_reason_t spc_emulate_modesense(struct se_cmd *cmd) for (i = 0; i < ARRAY_SIZE(modesense_handlers); ++i) if (modesense_handlers[i].page == page && modesense_handlers[i].subpage == subpage) { - length += modesense_handlers[i].emulate(dev, pc, &buf[length]); + length += modesense_handlers[i].emulate(cmd, pc, &buf[length]); goto set_length; } @@ -1095,7 +1109,6 @@ set_length: static sense_reason_t spc_emulate_modeselect(struct se_cmd *cmd) { - struct se_device *dev = cmd->se_dev; char *cdb = cmd->t_task_cdb; bool ten = cdb[0] == MODE_SELECT_10; int off = ten ? 8 : 4; @@ -1131,7 +1144,7 @@ static sense_reason_t spc_emulate_modeselect(struct se_cmd *cmd) if (modesense_handlers[i].page == page && modesense_handlers[i].subpage == subpage) { memset(tbuf, 0, SE_MODE_PAGE_BUF); - length = modesense_handlers[i].emulate(dev, 0, tbuf); + length = modesense_handlers[i].emulate(cmd, 0, tbuf); goto check_contents; } diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index 70c638f..f7cd95e 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -87,14 +87,17 @@ static void core_tmr_handle_tas_abort( struct se_cmd *cmd, int tas) { + bool remove = true; /* * TASK ABORTED status (TAS) bit support */ if ((tmr_nacl && - (tmr_nacl == cmd->se_sess->se_node_acl)) || tas) + (tmr_nacl != cmd->se_sess->se_node_acl)) && tas) { + remove = false; transport_send_task_abort(cmd); + } - transport_cmd_finish_abort(cmd, 0); + transport_cmd_finish_abort(cmd, remove); } static int target_check_cdb_and_preempt(struct list_head *list, @@ -127,6 +130,11 @@ void core_tmr_abort_task( if (dev != se_cmd->se_dev) continue; + + /* skip se_cmd associated with tmr */ + if (tmr->task_cmd == se_cmd) + continue; + ref_tag = se_cmd->se_tfo->get_task_tag(se_cmd); if (tmr->ref_task_tag != ref_tag) continue; @@ -150,18 +158,9 @@ void core_tmr_abort_task( cancel_work_sync(&se_cmd->work); transport_wait_for_tasks(se_cmd); - /* - * Now send SAM_STAT_TASK_ABORTED status for the referenced - * se_cmd descriptor.. - */ - transport_send_task_abort(se_cmd); - /* - * Also deal with possible extra acknowledge reference.. - */ - if (se_cmd->se_cmd_flags & SCF_ACK_KREF) - target_put_sess_cmd(se_sess, se_cmd); target_put_sess_cmd(se_sess, se_cmd); + transport_cmd_finish_abort(se_cmd, true); printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for" " ref_tag: %d\n", ref_tag); diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 2956250..d4b9869 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -235,7 +235,7 @@ void transport_subsystem_check_init(void) sub_api_initialized = 1; } -struct se_session *transport_init_session(void) +struct se_session *transport_init_session(enum target_prot_op sup_prot_ops) { struct se_session *se_sess; @@ -251,6 +251,7 @@ struct se_session *transport_init_session(void) INIT_LIST_HEAD(&se_sess->sess_wait_list); spin_lock_init(&se_sess->sess_cmd_lock); kref_init(&se_sess->sess_kref); + se_sess->sup_prot_ops = sup_prot_ops; return se_sess; } @@ -288,12 +289,13 @@ int transport_alloc_session_tags(struct se_session *se_sess, EXPORT_SYMBOL(transport_alloc_session_tags); struct se_session *transport_init_session_tags(unsigned int tag_num, - unsigned int tag_size) + unsigned int tag_size, + enum target_prot_op sup_prot_ops) { struct se_session *se_sess; int rc; - se_sess = transport_init_session(); + se_sess = transport_init_session(sup_prot_ops); if (IS_ERR(se_sess)) return se_sess; @@ -603,6 +605,15 @@ static void transport_lun_remove_cmd(struct se_cmd *cmd) void transport_cmd_finish_abort(struct se_cmd *cmd, int remove) { + if (cmd->se_cmd_flags & SCF_SE_LUN_CMD) + transport_lun_remove_cmd(cmd); + /* + * Allow the fabric driver to unmap any resources before + * releasing the descriptor via TFO->release_cmd() + */ + if (remove) + cmd->se_tfo->aborted_task(cmd); + if (transport_cmd_check_stop_to_fabric(cmd)) return; if (remove) @@ -1365,6 +1376,13 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess target_put_sess_cmd(se_sess, se_cmd); return 0; } + + rc = target_setup_cmd_from_cdb(se_cmd, cdb); + if (rc != 0) { + transport_generic_request_failure(se_cmd, rc); + return 0; + } + /* * Save pointers for SGLs containing protection information, * if present. @@ -1374,11 +1392,6 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess se_cmd->t_prot_nents = sgl_prot_count; } - rc = target_setup_cmd_from_cdb(se_cmd, cdb); - if (rc != 0) { - transport_generic_request_failure(se_cmd, rc); - return 0; - } /* * When a non zero sgl_count has been passed perform SGL passthrough * mapping for pre-allocated fabric memory instead of having target @@ -1754,6 +1767,15 @@ void target_execute_cmd(struct se_cmd *cmd) cmd->t_state = TRANSPORT_PROCESSING; cmd->transport_state |= CMD_T_ACTIVE|CMD_T_BUSY|CMD_T_SENT; spin_unlock_irq(&cmd->t_state_lock); + /* + * Perform WRITE_INSERT of PI using software emulation when backend + * device has PI enabled, if the transport has not already generated + * PI using hardware WRITE_INSERT offload. + */ + if (cmd->prot_op == TARGET_PROT_DOUT_INSERT) { + if (!(cmd->se_sess->sup_prot_ops & TARGET_PROT_DOUT_INSERT)) + sbc_dif_generate(cmd); + } if (target_handle_task_attr(cmd)) { spin_lock_irq(&cmd->t_state_lock); @@ -1883,6 +1905,21 @@ static void transport_handle_queue_full( schedule_work(&cmd->se_dev->qf_work_queue); } +static bool target_check_read_strip(struct se_cmd *cmd) +{ + sense_reason_t rc; + + if (!(cmd->se_sess->sup_prot_ops & TARGET_PROT_DIN_STRIP)) { + rc = sbc_dif_read_strip(cmd); + if (rc) { + cmd->pi_err = rc; + return true; + } + } + + return false; +} + static void target_complete_ok_work(struct work_struct *work) { struct se_cmd *cmd = container_of(work, struct se_cmd, work); @@ -1947,6 +1984,22 @@ static void target_complete_ok_work(struct work_struct *work) cmd->data_length; } spin_unlock(&cmd->se_lun->lun_sep_lock); + /* + * Perform READ_STRIP of PI using software emulation when + * backend had PI enabled, if the transport will not be + * performing hardware READ_STRIP offload. + */ + if (cmd->prot_op == TARGET_PROT_DIN_STRIP && + target_check_read_strip(cmd)) { + ret = transport_send_check_condition_and_sense(cmd, + cmd->pi_err, 0); + if (ret == -EAGAIN || ret == -ENOMEM) + goto queue_full; + + transport_lun_remove_cmd(cmd); + transport_cmd_check_stop_to_fabric(cmd); + return; + } trace_target_cmd_complete(cmd); ret = cmd->se_tfo->queue_data_in(cmd); @@ -2039,6 +2092,10 @@ static inline void transport_free_pages(struct se_cmd *cmd) transport_free_sgl(cmd->t_bidi_data_sg, cmd->t_bidi_data_nents); cmd->t_bidi_data_sg = NULL; cmd->t_bidi_data_nents = 0; + + transport_free_sgl(cmd->t_prot_sg, cmd->t_prot_nents); + cmd->t_prot_sg = NULL; + cmd->t_prot_nents = 0; } /** @@ -2202,6 +2259,14 @@ transport_generic_new_cmd(struct se_cmd *cmd) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; } + if (cmd->prot_op != TARGET_PROT_NORMAL) { + ret = target_alloc_sgl(&cmd->t_prot_sg, + &cmd->t_prot_nents, + cmd->prot_length, true); + if (ret < 0) + return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + } + ret = target_alloc_sgl(&cmd->t_data_sg, &cmd->t_data_nents, cmd->data_length, zero_flag); if (ret < 0) @@ -2770,13 +2835,17 @@ int transport_check_aborted_status(struct se_cmd *cmd, int send_status) if (!(cmd->transport_state & CMD_T_ABORTED)) return 0; - if (!send_status || (cmd->se_cmd_flags & SCF_SENT_DELAYED_TAS)) + /* + * If cmd has been aborted but either no status is to be sent or it has + * already been sent, just return + */ + if (!send_status || !(cmd->se_cmd_flags & SCF_SEND_DELAYED_TAS)) return 1; pr_debug("Sending delayed SAM_STAT_TASK_ABORTED status for CDB: 0x%02x ITT: 0x%08x\n", cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd)); - cmd->se_cmd_flags |= SCF_SENT_DELAYED_TAS; + cmd->se_cmd_flags &= ~SCF_SEND_DELAYED_TAS; cmd->scsi_status = SAM_STAT_TASK_ABORTED; trace_target_cmd_complete(cmd); cmd->se_tfo->queue_status(cmd); @@ -2790,7 +2859,7 @@ void transport_send_task_abort(struct se_cmd *cmd) unsigned long flags; spin_lock_irqsave(&cmd->t_state_lock, flags); - if (cmd->se_cmd_flags & (SCF_SENT_CHECK_CONDITION | SCF_SENT_DELAYED_TAS)) { + if (cmd->se_cmd_flags & (SCF_SENT_CHECK_CONDITION)) { spin_unlock_irqrestore(&cmd->t_state_lock, flags); return; } @@ -2805,6 +2874,7 @@ void transport_send_task_abort(struct se_cmd *cmd) if (cmd->data_direction == DMA_TO_DEVICE) { if (cmd->se_tfo->write_pending_status(cmd) != 0) { cmd->transport_state |= CMD_T_ABORTED; + cmd->se_cmd_flags |= SCF_SEND_DELAYED_TAS; smp_mb__after_atomic_inc(); return; } diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h index 752863a..a0bcfd3 100644 --- a/drivers/target/tcm_fc/tcm_fc.h +++ b/drivers/target/tcm_fc/tcm_fc.h @@ -94,20 +94,19 @@ struct ft_lun { */ struct ft_tpg { u32 index; - struct ft_lport_acl *lport_acl; + struct ft_lport_wwn *lport_wwn; struct ft_tport *tport; /* active tport or NULL */ - struct list_head list; /* linkage in ft_lport_acl tpg_list */ struct list_head lun_list; /* head of LUNs */ struct se_portal_group se_tpg; struct workqueue_struct *workqueue; }; -struct ft_lport_acl { +struct ft_lport_wwn { u64 wwpn; char name[FT_NAMELEN]; - struct list_head list; - struct list_head tpg_list; - struct se_wwn fc_lport_wwn; + struct list_head ft_wwn_node; + struct ft_tpg *tpg; + struct se_wwn se_wwn; }; /* @@ -128,7 +127,6 @@ struct ft_cmd { u32 sg_cnt; /* No. of item in scatterlist */ }; -extern struct list_head ft_lport_list; extern struct mutex ft_lport_lock; extern struct fc4_prov ft_prov; extern struct target_fabric_configfs *ft_configfs; @@ -163,6 +161,7 @@ int ft_write_pending_status(struct se_cmd *); u32 ft_get_task_tag(struct se_cmd *); int ft_get_cmd_state(struct se_cmd *); void ft_queue_tm_resp(struct se_cmd *); +void ft_aborted_task(struct se_cmd *); /* * other internal functions. diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index 8b2c1aa..01cf37f 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -426,6 +426,11 @@ void ft_queue_tm_resp(struct se_cmd *se_cmd) ft_send_resp_code(cmd, code); } +void ft_aborted_task(struct se_cmd *se_cmd) +{ + return; +} + static void ft_send_work(struct work_struct *work); /* diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c index e879da8..efdcb96 100644 --- a/drivers/target/tcm_fc/tfc_conf.c +++ b/drivers/target/tcm_fc/tfc_conf.c @@ -50,7 +50,7 @@ struct target_fabric_configfs *ft_configfs; -LIST_HEAD(ft_lport_list); +static LIST_HEAD(ft_wwn_list); DEFINE_MUTEX(ft_lport_lock); unsigned int ft_debug_logging; @@ -298,7 +298,7 @@ static struct se_portal_group *ft_add_tpg( struct config_group *group, const char *name) { - struct ft_lport_acl *lacl; + struct ft_lport_wwn *ft_wwn; struct ft_tpg *tpg; struct workqueue_struct *wq; unsigned long index; @@ -318,12 +318,17 @@ static struct se_portal_group *ft_add_tpg( if (index > UINT_MAX) return NULL; - lacl = container_of(wwn, struct ft_lport_acl, fc_lport_wwn); + if ((index != 1)) { + pr_err("Error, a single TPG=1 is used for HW port mappings\n"); + return ERR_PTR(-ENOSYS); + } + + ft_wwn = container_of(wwn, struct ft_lport_wwn, se_wwn); tpg = kzalloc(sizeof(*tpg), GFP_KERNEL); if (!tpg) return NULL; tpg->index = index; - tpg->lport_acl = lacl; + tpg->lport_wwn = ft_wwn; INIT_LIST_HEAD(&tpg->lun_list); wq = alloc_workqueue("tcm_fc", 0, 1); @@ -342,7 +347,7 @@ static struct se_portal_group *ft_add_tpg( tpg->workqueue = wq; mutex_lock(&ft_lport_lock); - list_add_tail(&tpg->list, &lacl->tpg_list); + ft_wwn->tpg = tpg; mutex_unlock(&ft_lport_lock); return &tpg->se_tpg; @@ -351,6 +356,7 @@ static struct se_portal_group *ft_add_tpg( static void ft_del_tpg(struct se_portal_group *se_tpg) { struct ft_tpg *tpg = container_of(se_tpg, struct ft_tpg, se_tpg); + struct ft_lport_wwn *ft_wwn = tpg->lport_wwn; pr_debug("del tpg %s\n", config_item_name(&tpg->se_tpg.tpg_group.cg_item)); @@ -361,7 +367,7 @@ static void ft_del_tpg(struct se_portal_group *se_tpg) synchronize_rcu(); mutex_lock(&ft_lport_lock); - list_del(&tpg->list); + ft_wwn->tpg = NULL; if (tpg->tport) { tpg->tport->tpg = NULL; tpg->tport = NULL; @@ -380,15 +386,11 @@ static void ft_del_tpg(struct se_portal_group *se_tpg) */ struct ft_tpg *ft_lport_find_tpg(struct fc_lport *lport) { - struct ft_lport_acl *lacl; - struct ft_tpg *tpg; + struct ft_lport_wwn *ft_wwn; - list_for_each_entry(lacl, &ft_lport_list, list) { - if (lacl->wwpn == lport->wwpn) { - list_for_each_entry(tpg, &lacl->tpg_list, list) - return tpg; /* XXX for now return first entry */ - return NULL; - } + list_for_each_entry(ft_wwn, &ft_wwn_list, ft_wwn_node) { + if (ft_wwn->wwpn == lport->wwpn) + return ft_wwn->tpg; } return NULL; } @@ -401,50 +403,49 @@ struct ft_tpg *ft_lport_find_tpg(struct fc_lport *lport) * Add lport to allowed config. * The name is the WWPN in lower-case ASCII, colon-separated bytes. */ -static struct se_wwn *ft_add_lport( +static struct se_wwn *ft_add_wwn( struct target_fabric_configfs *tf, struct config_group *group, const char *name) { - struct ft_lport_acl *lacl; - struct ft_lport_acl *old_lacl; + struct ft_lport_wwn *ft_wwn; + struct ft_lport_wwn *old_ft_wwn; u64 wwpn; - pr_debug("add lport %s\n", name); + pr_debug("add wwn %s\n", name); if (ft_parse_wwn(name, &wwpn, 1) < 0) return NULL; - lacl = kzalloc(sizeof(*lacl), GFP_KERNEL); - if (!lacl) + ft_wwn = kzalloc(sizeof(*ft_wwn), GFP_KERNEL); + if (!ft_wwn) return NULL; - lacl->wwpn = wwpn; - INIT_LIST_HEAD(&lacl->tpg_list); + ft_wwn->wwpn = wwpn; mutex_lock(&ft_lport_lock); - list_for_each_entry(old_lacl, &ft_lport_list, list) { - if (old_lacl->wwpn == wwpn) { + list_for_each_entry(old_ft_wwn, &ft_wwn_list, ft_wwn_node) { + if (old_ft_wwn->wwpn == wwpn) { mutex_unlock(&ft_lport_lock); - kfree(lacl); + kfree(ft_wwn); return NULL; } } - list_add_tail(&lacl->list, &ft_lport_list); - ft_format_wwn(lacl->name, sizeof(lacl->name), wwpn); + list_add_tail(&ft_wwn->ft_wwn_node, &ft_wwn_list); + ft_format_wwn(ft_wwn->name, sizeof(ft_wwn->name), wwpn); mutex_unlock(&ft_lport_lock); - return &lacl->fc_lport_wwn; + return &ft_wwn->se_wwn; } -static void ft_del_lport(struct se_wwn *wwn) +static void ft_del_wwn(struct se_wwn *wwn) { - struct ft_lport_acl *lacl = container_of(wwn, - struct ft_lport_acl, fc_lport_wwn); + struct ft_lport_wwn *ft_wwn = container_of(wwn, + struct ft_lport_wwn, se_wwn); - pr_debug("del lport %s\n", lacl->name); + pr_debug("del wwn %s\n", ft_wwn->name); mutex_lock(&ft_lport_lock); - list_del(&lacl->list); + list_del(&ft_wwn->ft_wwn_node); mutex_unlock(&ft_lport_lock); - kfree(lacl); + kfree(ft_wwn); } static ssize_t ft_wwn_show_attr_version( @@ -471,7 +472,7 @@ static char *ft_get_fabric_wwn(struct se_portal_group *se_tpg) { struct ft_tpg *tpg = se_tpg->se_tpg_fabric_ptr; - return tpg->lport_acl->name; + return tpg->lport_wwn->name; } static u16 ft_get_tag(struct se_portal_group *se_tpg) @@ -536,12 +537,13 @@ static struct target_core_fabric_ops ft_fabric_ops = { .queue_data_in = ft_queue_data_in, .queue_status = ft_queue_status, .queue_tm_rsp = ft_queue_tm_resp, + .aborted_task = ft_aborted_task, /* * Setup function pointers for generic logic in * target_core_fabric_configfs.c */ - .fabric_make_wwn = &ft_add_lport, - .fabric_drop_wwn = &ft_del_lport, + .fabric_make_wwn = &ft_add_wwn, + .fabric_drop_wwn = &ft_del_wwn, .fabric_make_tpg = &ft_add_tpg, .fabric_drop_tpg = &ft_del_tpg, .fabric_post_link = NULL, diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c index ae52c08..21ce508 100644 --- a/drivers/target/tcm_fc/tfc_sess.c +++ b/drivers/target/tcm_fc/tfc_sess.c @@ -51,7 +51,7 @@ static void ft_sess_delete_all(struct ft_tport *); * Lookup or allocate target local port. * Caller holds ft_lport_lock. */ -static struct ft_tport *ft_tport_create(struct fc_lport *lport) +static struct ft_tport *ft_tport_get(struct fc_lport *lport) { struct ft_tpg *tpg; struct ft_tport *tport; @@ -68,6 +68,7 @@ static struct ft_tport *ft_tport_create(struct fc_lport *lport) if (tport) { tport->tpg = tpg; + tpg->tport = tport; return tport; } @@ -114,7 +115,7 @@ static void ft_tport_delete(struct ft_tport *tport) void ft_lport_add(struct fc_lport *lport, void *arg) { mutex_lock(&ft_lport_lock); - ft_tport_create(lport); + ft_tport_get(lport); mutex_unlock(&ft_lport_lock); } @@ -211,7 +212,8 @@ static struct ft_sess *ft_sess_create(struct ft_tport *tport, u32 port_id, return NULL; sess->se_sess = transport_init_session_tags(TCM_FC_DEFAULT_TAGS, - sizeof(struct ft_cmd)); + sizeof(struct ft_cmd), + TARGET_PROT_NORMAL); if (IS_ERR(sess->se_sess)) { kfree(sess); return NULL; @@ -350,7 +352,7 @@ static int ft_prli_locked(struct fc_rport_priv *rdata, u32 spp_len, struct ft_node_acl *acl; u32 fcp_parm; - tport = ft_tport_create(rdata->local_port); + tport = ft_tport_get(rdata->local_port); if (!tport) goto not_target; /* not a target for this local port */ |
