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authorSumit.Saxena@lsi.com <Sumit.Saxena@lsi.com>2013-05-22 12:29:28 +0530
committerJames Bottomley <JBottomley@Parallels.com>2013-06-24 16:55:17 -0700
commitb09e66da3f5d9c47336dfe63f1e76696931fbdb0 (patch)
treed4eaf9fc26a7d4e1244acbdf04e990ae2b2ee50b /drivers/scsi/megaraid
parent28ce280fe46f0ba90c7df26d9fa5ba21a2e8a6bc (diff)
[SCSI] megaraid_sas: Return DID_ERROR for SCSI IO, when controller is in critical h/w error
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>
Diffstat (limited to 'drivers/scsi/megaraid')
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_base.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 3a9ddae86f1..cd2ee473f08 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -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;