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scsi: mpt3sas: Fix IO error occurs on pulling out a drive from RAID1 volume created on two SATA drive 

Whenever an I/O for a RAID volume fails with IOCStatus
MPI2_IOCSTATUS_SCSI_IOC_TERMINATED and SCSIStatus equal to
(MPI2_SCSI_STATE_TERMINATED | MPI2_SCSI_STATE_NO_SCSI_STATUS) then
return the I/O to SCSI midlayer with "DID_RESET" (i.e. retry the IO
infinite times) set in the host byte.

Previously, the driver was completing the I/O with "DID_SOFT_ERROR"
which causes the I/O to be quickly retried. However, firmware needed
more time and hence I/Os were failing.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@broadcom.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Sreekanth Reddy 2017-10-10 18:41:18 +05:30 committed by Martin K. Petersen
parent 758f8139e9
commit 2ce9a36452
1 changed files with 5 additions and 0 deletions
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5
drivers/scsi/mpt3sas/mpt3sas_scsih.c
View File

@ -4807,6 +4807,11 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
} else if (log_info == VIRTUAL_IO_FAILED_RETRY) {
scmd->result = DID_RESET << 16;
break;
} else if ((scmd->device->channel == RAID_CHANNEL) &&
(scsi_state == (MPI2_SCSI_STATE_TERMINATED |
MPI2_SCSI_STATE_NO_SCSI_STATUS))) {
scmd->result = DID_RESET << 16;
break;
}
scmd->result = DID_SOFT_ERROR << 16;
break;