diff options
Diffstat (limited to 'drivers/infiniband/ulp')
-rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib.h | 4 | ||||
-rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_ethtool.c | 19 | ||||
-rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 14 | ||||
-rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.c | 42 | ||||
-rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.h | 1 |
5 files changed, 60 insertions, 20 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/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index d5088ce..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. |