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| author |   Martin Wilck <mwilck@suse.com> | 2018-04-18 01:35:10 +0200 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2018-04-20 19:14:36 -0400 |
| commit | 29cfc2ab71d9642c2f4fda6cd278309cc253ff82 (patch) | |
| tree | d0e5a59c4a4ff37157d8077a7b2bbbcf9d596fa9 /drivers/scsi | |
| parent | scsi: devinfo: warn on undefined blist flags (diff) | |
| download | linux-dev-29cfc2ab71d9642c2f4fda6cd278309cc253ff82.tar.xz linux-dev-29cfc2ab71d9642c2f4fda6cd278309cc253ff82.zip | |
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>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/scsi_devinfo.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/scsi_error.c | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c index 9603f3ef18aa..87bc50686ac6 100644 --- a/drivers/scsi/scsi_devinfo.c +++ b/drivers/scsi/scsi_devinfo.c @@ -161,7 +161,8 @@ static struct { {"DGC", "RAID", NULL, BLIST_SPARSELUN}, /* EMC CLARiiON, storage on LUN 0 */ {"DGC", "DISK", NULL, BLIST_SPARSELUN}, /* EMC CLARiiON, no storage on LUN 0 */ {"EMC", "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, - {"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_REPORTLUN2}, + {"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | + BLIST_REPORTLUN2 | BLIST_RETRY_ITF}, {"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN}, {"easyRAID", "16P", NULL, BLIST_NOREPORTLUN}, {"easyRAID", "X6P", NULL, BLIST_NOREPORTLUN}, diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 946039117bf4..633b198ed895 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -38,6 +38,7 @@ #include <scsi/scsi_host.h> #include <scsi/scsi_ioctl.h> #include <scsi/scsi_dh.h> +#include <scsi/scsi_devinfo.h> #include <scsi/sg.h> #include "scsi_priv.h" @@ -525,6 +526,9 @@ int scsi_check_sense(struct scsi_cmnd *scmd) if (sshdr.asc == 0x10) /* DIF */ return SUCCESS; + if (sshdr.asc == 0x44 && sdev->sdev_bflags & BLIST_RETRY_ITF) + return ADD_TO_MLQUEUE; + return NEEDS_RETRY; case NOT_READY: case UNIT_ATTENTION: |