scsi: qla2xxx: Add logic to detect ABTS hang and response completion

Browse source

ABTS error completion can trigger an exchange cleanup from the driver and
another ABTS response will be generated.  This retry of ABTS response can
cause loop between driver trying to send ABTS and firmware returning error.

This patch fixes this issue by adding logic to check for unresolved exchanges
and clean up before ABTS is retried.  This patch also addes the fix to use the
same qpair as the ABTS completion for the terminatation of exchange as well as
retry of ABTS response.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

...

This commit is contained in:

Quinn Tran 2018-09-04 14:19:12 -07:00 • committed by Martin K. Petersen

parent 079a3a3b9d

commit 0691094ff3

3 changed files with 67 additions and 9 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

drivers/scsi/qla2xxx/qla_def.h

View file

1

drivers/scsi/qla2xxx/qla_os.c

View file

72

drivers/scsi/qla2xxx/qla_target.c

View file