diff options
| -rw-r--r-- | drivers/scsi/hpsa.c | 72 | ||||
| -rw-r--r-- | drivers/scsi/hpsa.h | 1 | ||||
| -rw-r--r-- | drivers/scsi/hpsa_cmd.h | 1 |
3 files changed, 54 insertions, 20 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index cc3128ff5dab..dcacb29ff589 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -248,6 +248,7 @@ static void hpsa_flush_cache(struct ctlr_info *h); static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h, struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, u8 *scsi3addr); +static void hpsa_command_resubmit_worker(struct work_struct *work); static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev) { @@ -1619,7 +1620,6 @@ static void process_ioaccel2_completion(struct ctlr_info *h, struct hpsa_scsi_dev_t *dev) { struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; - int raid_retry = 0; /* check for good status */ if (likely(c2->error_data.serv_response == 0 && @@ -1636,24 +1636,22 @@ static void process_ioaccel2_completion(struct ctlr_info *h, if (is_logical_dev_addr_mode(dev->scsi3addr) && c2->error_data.serv_response == IOACCEL2_SERV_RESPONSE_FAILURE) { - dev->offload_enabled = 0; - cmd->result = DID_SOFT_ERROR << 16; - cmd_free(h, c); - cmd->scsi_done(cmd); - return; - } - raid_retry = handle_ioaccel_mode2_error(h, c, cmd, c2); - /* If error found, disable Smart Path, - * force a retry on the standard path. - */ - if (raid_retry) { - dev_warn(&h->pdev->dev, "%s: Retrying on standard path.\n", - "HP SSD Smart Path"); - dev->offload_enabled = 0; /* Disable Smart Path */ - cmd->result = DID_SOFT_ERROR << 16; + if (c2->error_data.status == + IOACCEL2_STATUS_SR_IOACCEL_DISABLED) + dev->offload_enabled = 0; + goto retry_cmd; } + + if (handle_ioaccel_mode2_error(h, c, cmd, c2)) + goto retry_cmd; + cmd_free(h, c); cmd->scsi_done(cmd); + return; + +retry_cmd: + INIT_WORK(&c->work, hpsa_command_resubmit_worker); + queue_work_on(raw_smp_processor_id(), h->resubmit_wq, &c->work); } static void complete_scsi_command(struct CommandList *cp) @@ -1723,9 +1721,9 @@ static void complete_scsi_command(struct CommandList *cp) if (is_logical_dev_addr_mode(dev->scsi3addr)) { if (ei->CommandStatus == CMD_IOACCEL_DISABLED) dev->offload_enabled = 0; - cmd->result = DID_SOFT_ERROR << 16; - cmd_free(h, cp); - cmd->scsi_done(cmd); + INIT_WORK(&cp->work, hpsa_command_resubmit_worker); + queue_work_on(raw_smp_processor_id(), + h->resubmit_wq, &cp->work); return; } } @@ -3873,6 +3871,31 @@ static int hpsa_ciss_submit(struct ctlr_info *h, return 0; } +static void hpsa_command_resubmit_worker(struct work_struct *work) +{ + struct scsi_cmnd *cmd; + struct hpsa_scsi_dev_t *dev; + struct CommandList *c = + container_of(work, struct CommandList, work); + + cmd = c->scsi_cmd; + dev = cmd->device->hostdata; + if (!dev) { + cmd->result = DID_NO_CONNECT << 16; + cmd->scsi_done(cmd); + return; + } + if (hpsa_ciss_submit(c->h, c, cmd, dev->scsi3addr)) { + /* + * If we get here, it means dma mapping failed. Try + * again via scsi mid layer, which will then get + * SCSI_MLQUEUE_HOST_BUSY. + */ + cmd->result = DID_IMM_RETRY << 16; + cmd->scsi_done(cmd); + } +} + /* Running in struct Scsi_Host->host_lock less mode */ static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd) { @@ -6396,6 +6419,7 @@ static void fail_all_outstanding_cmds(struct ctlr_info *h) int i; struct CommandList *c = NULL; + flush_workqueue(h->resubmit_wq); /* ensure all cmds are fully built */ for (i = 0; i < h->nr_cmds; i++) { if (!test_bit(i & (BITS_PER_LONG - 1), h->cmd_pool_bits + (i / BITS_PER_LONG))) @@ -6631,6 +6655,12 @@ reinit_after_soft_reset: spin_lock_init(&h->scan_lock); spin_lock_init(&h->passthru_count_lock); + h->resubmit_wq = alloc_workqueue("hpsa", WQ_MEM_RECLAIM, 0); + if (!h->resubmit_wq) { + dev_err(&h->pdev->dev, "Failed to allocate work queue\n"); + rc = -ENOMEM; + goto clean1; + } /* Allocate and clear per-cpu variable lockup_detected */ h->lockup_detected = alloc_percpu(u32); if (!h->lockup_detected) { @@ -6763,6 +6793,8 @@ clean2_and_free_irqs: hpsa_free_irqs(h); clean2: clean1: + if (h->resubmit_wq) + destroy_workqueue(h->resubmit_wq); if (h->lockup_detected) free_percpu(h->lockup_detected); kfree(h); @@ -6838,9 +6870,9 @@ static void hpsa_remove_one(struct pci_dev *pdev) h->remove_in_progress = 1; cancel_delayed_work(&h->monitor_ctlr_work); spin_unlock_irqrestore(&h->lock, flags); - hpsa_unregister_scsi(h); /* unhook from SCSI subsystem */ hpsa_shutdown(pdev); + destroy_workqueue(h->resubmit_wq); iounmap(h->vaddr); iounmap(h->transtable); iounmap(h->cfgtable); diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index 06a3e812ec38..a0f4268df457 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -236,6 +236,7 @@ struct ctlr_info { struct list_head offline_device_list; int acciopath_status; int raid_offload_debug; + struct workqueue_struct *resubmit_wq; }; struct offline_device_entry { diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h index d78e66629650..3f2f0af6abb2 100644 --- a/drivers/scsi/hpsa_cmd.h +++ b/drivers/scsi/hpsa_cmd.h @@ -404,6 +404,7 @@ struct CommandList { long cmdindex; struct completion *waiting; void *scsi_cmd; + struct work_struct work; } __aligned(COMMANDLIST_ALIGNMENT); /* Max S/G elements in I/O accelerator command */ |