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-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib.h4
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_ethtool.c19
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_main.c14
-rw-r--r--drivers/infiniband/ulp/iser/iscsi_iser.h2
-rw-r--r--drivers/infiniband/ulp/iser/iser_memory.c9
-rw-r--r--drivers/infiniband/ulp/iser/iser_verbs.c8
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c42
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.h1
8 files changed, 72 insertions, 27 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index 07ca6fd..eb71aaa 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -117,6 +117,8 @@ enum {
#define IPOIB_OP_CM (0)
#endif
+#define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
+
/* structs */
struct ipoib_header {
@@ -760,4 +762,6 @@ extern int ipoib_debug_level;
#define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff)
+extern const char ipoib_driver_version[];
+
#endif /* _IPOIB_H */
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
index 29bc7b5..c4b3940 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
@@ -39,7 +39,24 @@
static void ipoib_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *drvinfo)
{
- strncpy(drvinfo->driver, "ipoib", sizeof(drvinfo->driver) - 1);
+ struct ipoib_dev_priv *priv = netdev_priv(netdev);
+ struct ib_device_attr *attr;
+
+ attr = kmalloc(sizeof(*attr), GFP_KERNEL);
+ if (attr && !ib_query_device(priv->ca, attr))
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%d.%d.%d", (int)(attr->fw_ver >> 32),
+ (int)(attr->fw_ver >> 16) & 0xffff,
+ (int)attr->fw_ver & 0xffff);
+ kfree(attr);
+
+ strlcpy(drvinfo->bus_info, dev_name(priv->ca->dma_device),
+ sizeof(drvinfo->bus_info));
+
+ strlcpy(drvinfo->version, ipoib_driver_version,
+ sizeof(drvinfo->version));
+
+ strlcpy(drvinfo->driver, "ib_ipoib", sizeof(drvinfo->driver));
}
static int ipoib_get_coalesce(struct net_device *dev,
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 6fdc9e7..8534afd 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -49,9 +49,14 @@
#include <linux/jhash.h>
#include <net/arp.h>
+#define DRV_VERSION "1.0.0"
+
+const char ipoib_driver_version[] = DRV_VERSION;
+
MODULE_AUTHOR("Roland Dreier");
MODULE_DESCRIPTION("IP-over-InfiniBand net driver");
MODULE_LICENSE("Dual BSD/GPL");
+MODULE_VERSION(DRV_VERSION);
int ipoib_sendq_size __read_mostly = IPOIB_TX_RING_SIZE;
int ipoib_recvq_size __read_mostly = IPOIB_RX_RING_SIZE;
@@ -505,6 +510,9 @@ static void path_rec_completion(int status,
spin_unlock_irqrestore(&priv->lock, flags);
+ if (IS_ERR_OR_NULL(ah))
+ ipoib_del_neighs_by_gid(dev, path->pathrec.dgid.raw);
+
if (old_ah)
ipoib_put_ah(old_ah);
@@ -844,10 +852,10 @@ static u32 ipoib_addr_hash(struct ipoib_neigh_hash *htbl, u8 *daddr)
* different subnets.
*/
/* qpn octets[1:4) & port GUID octets[12:20) */
- u32 *daddr_32 = (u32 *) daddr;
+ u32 *d32 = (u32 *) daddr;
u32 hv;
- hv = jhash_3words(daddr_32[3], daddr_32[4], 0xFFFFFF & daddr_32[0], 0);
+ hv = jhash_3words(d32[3], d32[4], IPOIB_QPN_MASK & d32[0], 0);
return hv & htbl->mask;
}
@@ -1688,6 +1696,8 @@ static void ipoib_remove_one(struct ib_device *device)
return;
dev_list = ib_get_client_data(device, &ipoib_client);
+ if (!dev_list)
+ return;
list_for_each_entry_safe(priv, tmp, dev_list, list) {
ib_unregister_event_handler(&priv->event_handler);
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h
index ef7d3be..5babdb3 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.h
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.h
@@ -94,7 +94,7 @@
/* support up to 512KB in one RDMA */
#define ISCSI_ISER_SG_TABLESIZE (0x80000 >> SHIFT_4K)
-#define ISER_DEF_CMD_PER_LUN 128
+#define ISER_DEF_CMD_PER_LUN ISCSI_DEF_XMIT_CMDS_MAX
/* QP settings */
/* Maximal bounds on received asynchronous PDUs */
diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c
index 2033a92..be1edb0 100644
--- a/drivers/infiniband/ulp/iser/iser_memory.c
+++ b/drivers/infiniband/ulp/iser/iser_memory.c
@@ -369,10 +369,11 @@ int iser_reg_rdma_mem(struct iscsi_iser_task *iser_task,
regd_buf = &iser_task->rdma_regd[cmd_dir];
aligned_len = iser_data_buf_aligned_len(mem, ibdev);
- if (aligned_len != mem->dma_nents) {
+ if (aligned_len != mem->dma_nents ||
+ (!ib_conn->fmr_pool && mem->dma_nents > 1)) {
iscsi_conn->fmr_unalign_cnt++;
- iser_warn("rdma alignment violation %d/%d aligned\n",
- aligned_len, mem->size);
+ iser_warn("rdma alignment violation (%d/%d aligned) or FMR not supported\n",
+ aligned_len, mem->size);
iser_data_buf_dump(mem, ibdev);
/* unmap the command data before accessing it */
@@ -404,7 +405,7 @@ int iser_reg_rdma_mem(struct iscsi_iser_task *iser_task,
} else { /* use FMR for multiple dma entries */
iser_page_vec_build(mem, ib_conn->page_vec, ibdev);
err = iser_reg_page_vec(ib_conn, ib_conn->page_vec, &regd_buf->reg);
- if (err) {
+ if (err && err != -EAGAIN) {
iser_data_buf_dump(mem, ibdev);
iser_err("mem->dma_nents = %d (dlength = 0x%x)\n",
mem->dma_nents,
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index 95a49af..4debadc 100644
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -242,10 +242,14 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn)
IB_ACCESS_REMOTE_READ);
ib_conn->fmr_pool = ib_create_fmr_pool(device->pd, &params);
- if (IS_ERR(ib_conn->fmr_pool)) {
- ret = PTR_ERR(ib_conn->fmr_pool);
+ ret = PTR_ERR(ib_conn->fmr_pool);
+ if (IS_ERR(ib_conn->fmr_pool) && ret != -ENOSYS) {
ib_conn->fmr_pool = NULL;
goto out_err;
+ } else if (ret == -ENOSYS) {
+ ib_conn->fmr_pool = NULL;
+ iser_warn("FMRs are not supported, using unaligned mode\n");
+ ret = 0;
}
memset(&init_attr, 0, sizeof init_attr);
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index d5088ce7..7ccf328 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -700,23 +700,24 @@ static int srp_reconnect_target(struct srp_target_port *target)
struct Scsi_Host *shost = target->scsi_host;
int i, ret;
- if (target->state != SRP_TARGET_LIVE)
- return -EAGAIN;
-
scsi_target_block(&shost->shost_gendev);
srp_disconnect_target(target);
/*
- * Now get a new local CM ID so that we avoid confusing the
- * target in case things are really fouled up.
+ * Now get a new local CM ID so that we avoid confusing the target in
+ * case things are really fouled up. Doing so also ensures that all CM
+ * callbacks will have finished before a new QP is allocated.
*/
ret = srp_new_cm_id(target);
- if (ret)
- goto unblock;
-
- ret = srp_create_target_ib(target);
- if (ret)
- goto unblock;
+ /*
+ * Whether or not creating a new CM ID succeeded, create a new
+ * QP. This guarantees that all completion callback function
+ * invocations have finished before request resetting starts.
+ */
+ if (ret == 0)
+ ret = srp_create_target_ib(target);
+ else
+ srp_create_target_ib(target);
for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
struct srp_request *req = &target->req_ring[i];
@@ -728,11 +729,12 @@ static int srp_reconnect_target(struct srp_target_port *target)
for (i = 0; i < SRP_SQ_SIZE; ++i)
list_add(&target->tx_ring[i]->list, &target->free_tx);
- ret = srp_connect_target(target);
+ if (ret == 0)
+ ret = srp_connect_target(target);
-unblock:
scsi_target_unblock(&shost->shost_gendev, ret == 0 ? SDEV_RUNNING :
SDEV_TRANSPORT_OFFLINE);
+ target->transport_offline = !!ret;
if (ret)
goto err;
@@ -1352,6 +1354,12 @@ static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd)
unsigned long flags;
int len;
+ if (unlikely(target->transport_offline)) {
+ scmnd->result = DID_NO_CONNECT << 16;
+ scmnd->scsi_done(scmnd);
+ return 0;
+ }
+
spin_lock_irqsave(&target->lock, flags);
iu = __srp_get_tx_iu(target, SRP_IU_CMD);
if (!iu)
@@ -1695,6 +1703,9 @@ static int srp_send_tsk_mgmt(struct srp_target_port *target,
struct srp_iu *iu;
struct srp_tsk_mgmt *tsk_mgmt;
+ if (!target->connected || target->qp_in_error)
+ return -1;
+
init_completion(&target->tsk_mgmt_done);
spin_lock_irq(&target->lock);
@@ -1736,7 +1747,7 @@ static int srp_abort(struct scsi_cmnd *scmnd)
shost_printk(KERN_ERR, target->scsi_host, "SRP abort called\n");
- if (!req || target->qp_in_error || !srp_claim_req(target, req, scmnd))
+ if (!req || !srp_claim_req(target, req, scmnd))
return FAILED;
srp_send_tsk_mgmt(target, req->index, scmnd->device->lun,
SRP_TSK_ABORT_TASK);
@@ -1754,8 +1765,6 @@ static int srp_reset_device(struct scsi_cmnd *scmnd)
shost_printk(KERN_ERR, target->scsi_host, "SRP reset_device called\n");
- if (target->qp_in_error)
- return FAILED;
if (srp_send_tsk_mgmt(target, SRP_TAG_NO_REQ, scmnd->device->lun,
SRP_TSK_LUN_RESET))
return FAILED;
@@ -1972,7 +1981,6 @@ static int srp_add_target(struct srp_host *host, struct srp_target_port *target)
spin_unlock(&host->target_lock);
target->state = SRP_TARGET_LIVE;
- target->connected = false;
scsi_scan_target(&target->scsi_host->shost_gendev,
0, target->scsi_id, SCAN_WILD_CARD, 0);
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index de2d0b3..66fbedd 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -140,6 +140,7 @@ struct srp_target_port {
unsigned int cmd_sg_cnt;
unsigned int indirect_size;
bool allow_ext_sg;
+ bool transport_offline;
/* Everything above this point is used in the hot path of
* command processing. Try to keep them packed into cachelines.
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