For any SCSI command, if the driver receives IOC status = SCSI_IOC_TERMINATED
and log info = 0x32010081 then that command will be completed with DID_RESET
host status.
The definition of this log info value is "Virtual IO has failed and has to be
retried".
Firmware will provide this log info value with IOC Status
"SCSI_IOC_TERMINATED", whenever a drive (with is a part of a volume) is pulled
and pushed back within some minimal delay. With this log info value, firmware
informs the driver to retry the failed IO command infinite times, so to provide
some time for the firmware to discover the reinserted drive successfully
instated of just retrying failed command for five times( doesn't giving enough
time for firmware to complete the drive discovery) and failing the IO
permanently even though drive came back successfully.
Signed-off-by: Sreekanth Reddy <sreekanth.re...@avagotech.com>
---
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index fd00451..55f39f6 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -4287,6 +4287,9 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8
msix_index, u32 reply)
scmd->device->expecting_cc_ua = 1;
}
break;
+ } else if (log_info == 0x32010081) {
+ scmd->result = DID_RESET << 16;
+ break;
}
scmd->result = DID_SOFT_ERROR << 16;
break;
--
2.0.2
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