tree c3c4e5683c0b41737e8d2040789180cef184120d
parent 29cfc2ab71d9642c2f4fda6cd278309cc253ff82
author Martin Wilck <mwilck@suse.com> 1524008111 +0200
committer Martin K. Petersen <martin.petersen@oracle.com> 1524266076 -0400

scsi: devinfo: BLIST_RETRY_ASC_C1 for Fujitsu ETERNUS

On Fujitsu ETERNUS systems, sense code ABORTED COMMAND with ASC/Q C1/01
is used to indicate temporary condition where the storage-internal path
to a target is switched from one controller to another. SCSI commands
that return with this error code must be retried unconditionally
(i.e. without the "maybe_retry" logic in scsi_decide_disposition);
otherwise dm-multipath might initiate a failover from a healthy path
e.g. for REQ_FAILFAST_DEV commands.

Introduce a new blist flag for this case.

[mkp: applied by hand]

Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>