diff options
| -rw-r--r-- | drivers/scsi/hpsa.c | 126 |
1 files changed, 67 insertions, 59 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 94a82e367bf1..cc3128ff5dab 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -2034,7 +2034,7 @@ static int hpsa_scsi_do_inquiry(struct ctlr_info *h, unsigned char *scsi3addr, c = cmd_alloc(h); - if (c == NULL) { /* trouble... */ + if (c == NULL) { dev_warn(&h->pdev->dev, "cmd_alloc returned NULL!\n"); return -ENOMEM; } @@ -3807,68 +3807,14 @@ static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info *h, dev->scsi3addr); } -/* Running in struct Scsi_Host->host_lock less mode */ -static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd) +/* Submit commands down the "normal" RAID stack path */ +static int hpsa_ciss_submit(struct ctlr_info *h, + struct CommandList *c, struct scsi_cmnd *cmd, + unsigned char scsi3addr[]) { - struct ctlr_info *h; - struct hpsa_scsi_dev_t *dev; - unsigned char scsi3addr[8]; - struct CommandList *c; - int rc = 0; - - /* Get the ptr to our adapter structure out of cmd->host. */ - h = sdev_to_hba(cmd->device); - dev = cmd->device->hostdata; - if (!dev) { - cmd->result = DID_NO_CONNECT << 16; - cmd->scsi_done(cmd); - return 0; - } - memcpy(scsi3addr, dev->scsi3addr, sizeof(scsi3addr)); - - if (unlikely(lockup_detected(h))) { - cmd->result = DID_ERROR << 16; - cmd->scsi_done(cmd); - return 0; - } - c = cmd_alloc(h); - if (c == NULL) { /* trouble... */ - dev_err(&h->pdev->dev, "cmd_alloc returned NULL!\n"); - return SCSI_MLQUEUE_HOST_BUSY; - } - - /* Fill in the command list header */ - /* save c in case we have to abort it */ cmd->host_scribble = (unsigned char *) c; - c->cmd_type = CMD_SCSI; c->scsi_cmd = cmd; - - /* Call alternate submit routine for I/O accelerated commands. - * Retries always go down the normal I/O path. - */ - if (likely(cmd->retries == 0 && - cmd->request->cmd_type == REQ_TYPE_FS && - h->acciopath_status)) { - if (dev->offload_enabled) { - rc = hpsa_scsi_ioaccel_raid_map(h, c); - if (rc == 0) - return 0; /* Sent on ioaccel path */ - if (rc < 0) { /* scsi_dma_map failed. */ - cmd_free(h, c); - return SCSI_MLQUEUE_HOST_BUSY; - } - } else if (dev->ioaccel_handle) { - rc = hpsa_scsi_ioaccel_direct_map(h, c); - if (rc == 0) - return 0; /* Sent on direct map path */ - if (rc < 0) { /* scsi_dma_map failed. */ - cmd_free(h, c); - return SCSI_MLQUEUE_HOST_BUSY; - } - } - } - c->Header.ReplyQueue = 0; /* unused in simple mode */ memcpy(&c->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8); c->Header.tag = cpu_to_le64((c->cmdindex << DIRECT_LOOKUP_SHIFT)); @@ -3927,6 +3873,68 @@ static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd) return 0; } +/* Running in struct Scsi_Host->host_lock less mode */ +static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd) +{ + struct ctlr_info *h; + struct hpsa_scsi_dev_t *dev; + unsigned char scsi3addr[8]; + struct CommandList *c; + int rc = 0; + + /* Get the ptr to our adapter structure out of cmd->host. */ + h = sdev_to_hba(cmd->device); + dev = cmd->device->hostdata; + if (!dev) { + cmd->result = DID_NO_CONNECT << 16; + cmd->scsi_done(cmd); + return 0; + } + memcpy(scsi3addr, dev->scsi3addr, sizeof(scsi3addr)); + + if (unlikely(lockup_detected(h))) { + cmd->result = DID_ERROR << 16; + cmd->scsi_done(cmd); + return 0; + } + c = cmd_alloc(h); + if (c == NULL) { /* trouble... */ + dev_err(&h->pdev->dev, "cmd_alloc returned NULL!\n"); + return SCSI_MLQUEUE_HOST_BUSY; + } + + /* Call alternate submit routine for I/O accelerated commands. + * Retries always go down the normal I/O path. + */ + if (likely(cmd->retries == 0 && + cmd->request->cmd_type == REQ_TYPE_FS && + h->acciopath_status)) { + + cmd->host_scribble = (unsigned char *) c; + c->cmd_type = CMD_SCSI; + c->scsi_cmd = cmd; + + if (dev->offload_enabled) { + rc = hpsa_scsi_ioaccel_raid_map(h, c); + if (rc == 0) + return 0; /* Sent on ioaccel path */ + if (rc < 0) { /* scsi_dma_map failed. */ + cmd_free(h, c); + return SCSI_MLQUEUE_HOST_BUSY; + } + } else if (dev->ioaccel_handle) { + rc = hpsa_scsi_ioaccel_direct_map(h, c); + if (rc == 0) + return 0; /* Sent on direct map path */ + if (rc < 0) { /* scsi_dma_map failed. */ + cmd_free(h, c); + return SCSI_MLQUEUE_HOST_BUSY; + } + } + } + return hpsa_ciss_submit(h, c, cmd, scsi3addr); +} + static int do_not_scan_if_controller_locked_up(struct ctlr_info *h) { unsigned long flags; |