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[SCSI] megaraid_sas: Return DID_ERROR for SCSI IO, when controller is in critical h/w error

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Do not return SCSI_MLQUEUE_HOST_BUSY, but send DID_ERROR to SCSI mid-layer, if
adapter is in critical error state.  "SCSI_MLQUEUE_HOST_BUSY" will keep same
SCSI command in loop and it is not a right return value, if controller is
hardware critical error.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Sumit.Saxena@lsi.com 2013-05-22 12:29:28 +05:30 committed by James Bottomley
parent 28ce280fe4
commit b09e66da3f
1 changed files with 8 additions and 0 deletions
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8
drivers/scsi/megaraid/megaraid_sas_base.c
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@ -1471,6 +1471,14 @@ megasas_queue_command_lck(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd
return SCSI_MLQUEUE_HOST_BUSY;
spin_lock_irqsave(&instance->hba_lock, flags);
if (instance->adprecovery == MEGASAS_HW_CRITICAL_ERROR) {
spin_unlock_irqrestore(&instance->hba_lock, flags);
scmd->result = DID_ERROR << 16;
done(scmd);
return 0;
}
if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) {
spin_unlock_irqrestore(&instance->hba_lock, flags);
return SCSI_MLQUEUE_HOST_BUSY;