vserver 2.0 rc7

[linux-2.6.git] / drivers / scsi / scsi_error.c

diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index eb337e4..2bf1ee2 100644 (file)
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -79,11 +79,6 @@ int scsi_eh_scmd_add(struct scsi_cmnd *scmd, int eh_flag)
         */
        scmd->owner = SCSI_OWNER_ERROR_HANDLER;
        scmd->state = SCSI_STATE_FAILED;
-       /*
-        * Set the serial_number_at_timeout to the current
-        * serial_number
-        */
-       scmd->serial_number_at_timeout = scmd->serial_number;
        list_add_tail(&scmd->eh_entry, &shost->eh_cmd_q);
        set_bit(SHOST_RECOVERY, &shost->shost_state);
        shost->host_failed++;
@@ -350,10 +345,15 @@ static int scsi_check_sense(struct scsi_cmnd *scmd)
        case MEDIUM_ERROR:
                return NEEDS_RETRY;
 
+       case HARDWARE_ERROR:
+               if (scmd->device->retry_hwerror)
+                       return NEEDS_RETRY;
+               else
+                       return SUCCESS;
+
        case ILLEGAL_REQUEST:
        case BLANK_CHECK:
        case DATA_PROTECT:
-       case HARDWARE_ERROR:
        default:
                return SUCCESS;
        }
@@ -476,7 +476,8 @@ static void scsi_eh_done(struct scsi_cmnd *scmd)
  **/
 static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout)
 {
-       struct Scsi_Host *host = scmd->device->host;
+       struct scsi_device *sdev = scmd->device;
+       struct Scsi_Host *shost = sdev->host;
        DECLARE_MUTEX_LOCKED(sem);
        unsigned long flags;
        int rtn = SUCCESS;
@@ -487,27 +488,27 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout)
         */
        scmd->owner = SCSI_OWNER_LOWLEVEL;
 
-       if (scmd->device->scsi_level <= SCSI_2)
+       if (sdev->scsi_level <= SCSI_2)
                scmd->cmnd[1] = (scmd->cmnd[1] & 0x1f) |
-                       (scmd->device->lun << 5 & 0xe0);
+                       (sdev->lun << 5 & 0xe0);
 
        scsi_add_timer(scmd, timeout, scsi_eh_times_out);
 
        /*
         * set up the semaphore so we wait for the command to complete.
         */
-       scmd->device->host->eh_action = &sem;
+       shost->eh_action = &sem;
        scmd->request->rq_status = RQ_SCSI_BUSY;
 
-       spin_lock_irqsave(scmd->device->host->host_lock, flags);
+       spin_lock_irqsave(shost->host_lock, flags);
        scsi_log_send(scmd);
-       host->hostt->queuecommand(scmd, scsi_eh_done);
-       spin_unlock_irqrestore(scmd->device->host->host_lock, flags);
+       shost->hostt->queuecommand(scmd, scsi_eh_done);
+       spin_unlock_irqrestore(shost->host_lock, flags);
 
        down(&sem);
        scsi_log_completion(scmd, SUCCESS);
 
-       scmd->device->host->eh_action = NULL;
+       shost->eh_action = NULL;
 
        /*
         * see if timeout.  if so, tell the host to forget about it.
@@ -527,10 +528,10 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout)
                 * abort a timed out command or not.  not sure how
                 * we should treat them differently anyways.
                 */
-               spin_lock_irqsave(scmd->device->host->host_lock, flags);
-               if (scmd->device->host->hostt->eh_abort_handler)
-                       scmd->device->host->hostt->eh_abort_handler(scmd);
-               spin_unlock_irqrestore(scmd->device->host->host_lock, flags);
+               spin_lock_irqsave(shost->host_lock, flags);
+               if (shost->hostt->eh_abort_handler)
+                       shost->hostt->eh_abort_handler(scmd);
+               spin_unlock_irqrestore(shost->host_lock, flags);
                        
                scmd->request->rq_status = RQ_SCSI_DONE;
                scmd->owner = SCSI_OWNER_ERROR_HANDLER;
@@ -583,7 +584,7 @@ static int scsi_request_sense(struct scsi_cmnd *scmd)
 
        memcpy(scmd->cmnd, generic_sense, sizeof(generic_sense));
 
-       scsi_result = kmalloc(252, GFP_ATOMIC | (scmd->device->host->hostt->unchecked_isa_dma) ? __GFP_DMA : 0);
+       scsi_result = kmalloc(252, GFP_ATOMIC | ((scmd->device->host->hostt->unchecked_isa_dma) ? __GFP_DMA : 0));
 
 
        if (unlikely(!scsi_result)) {
@@ -1056,7 +1057,6 @@ static int scsi_try_bus_reset(struct scsi_cmnd *scmd)
        SCSI_LOG_ERROR_RECOVERY(3, printk("%s: Snd Bus RST\n",
                                          __FUNCTION__));
        scmd->owner = SCSI_OWNER_LOWLEVEL;
-       scmd->serial_number_at_timeout = scmd->serial_number;
 
        if (!scmd->device->host->hostt->eh_bus_reset_handler)
                return FAILED;
@@ -1088,7 +1088,6 @@ static int scsi_try_host_reset(struct scsi_cmnd *scmd)
        SCSI_LOG_ERROR_RECOVERY(3, printk("%s: Snd Host RST\n",
                                          __FUNCTION__));
        scmd->owner = SCSI_OWNER_LOWLEVEL;
-       scmd->serial_number_at_timeout = scmd->serial_number;
 
        if (!scmd->device->host->hostt->eh_host_reset_handler)
                return FAILED;
@@ -1308,6 +1307,9 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
        case DID_IMM_RETRY:
                return NEEDS_RETRY;
 
+       case DID_REQUEUE:
+               return ADD_TO_MLQUEUE;
+
        case DID_ERROR:
                if (msg_byte(scmd->result) == COMMAND_COMPLETE &&
                    status_byte(scmd->result) == RESERVATION_CONFLICT)
@@ -1364,6 +1366,7 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
                return ADD_TO_MLQUEUE;
        case GOOD:
        case COMMAND_TERMINATED:
+       case TASK_ABORTED:
                return SUCCESS;
        case CHECK_CONDITION:
                rtn = scsi_check_sense(scmd);
@@ -1377,6 +1380,7 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
        case CONDITION_GOOD:
        case INTERMEDIATE_GOOD:
        case INTERMEDIATE_C_GOOD:
+       case ACA_ACTIVE:
                /*
                 * who knows?  FIXME(eric)
                 */
@@ -1832,7 +1836,6 @@ scsi_reset_provider(struct scsi_device *dev, int flag)
        scmd->bufflen                   = 0;
        scmd->request_buffer            = NULL;
        scmd->request_bufflen           = 0;
-       scmd->internal_timeout          = NORMAL_TIMEOUT;
        scmd->abort_reason              = DID_ABORT;
 
        scmd->cmd_len                   = 0;