scsi: devinfo: add BLIST_RETRY_ITF for EMC Symmetrix
authorMartin Wilck <mwilck@suse.com>
Tue, 17 Apr 2018 23:35:10 +0000 (01:35 +0200)
committerMartin K. Petersen <martin.petersen@oracle.com>
Fri, 20 Apr 2018 23:14:36 +0000 (19:14 -0400)
commit29cfc2ab71d9642c2f4fda6cd278309cc253ff82
treed0e5a59c4a4ff37157d8077a7b2bbbcf9d596fa9
parent358fda5ff4c441dfa6e66fd3b1f7d8f882ecba8f
scsi: devinfo: add BLIST_RETRY_ITF for EMC Symmetrix

EMC Symmetrix returns 'internal target error' for a variety of
conditions, most of which will be transient.  So we should always retry
it, even with failfast set.  Otherwise we'd get spurious path flaps with
multipath.

Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/scsi_devinfo.c
drivers/scsi/scsi_error.c
include/scsi/scsi_devinfo.h