scsi: lpfc: Change return code on I/Os received during link bounce
authorJames Smart <jsmart2021@gmail.com>
Sat, 4 Dec 2021 00:26:37 +0000 (16:26 -0800)
committerMartin K. Petersen <martin.petersen@oracle.com>
Tue, 7 Dec 2021 03:35:36 +0000 (22:35 -0500)
commit2e81b1a374da5d6024208c16c4a5224a70cafa64
treeb2c3a64dad193093fa838ad9582eb98ad3163b29
parentf0d3919697492950f57a26a1093aee53880d669d
scsi: lpfc: Change return code on I/Os received during link bounce

During heavy I/O testing with issue_lip to bounce the link, occasionally
I/O is terminated with status 3 result 9, which means the RPI is suspended.
The I/O is completed and this type of error will result in immediate retry
by the SCSI layer. The retry count expires and the I/O fails and returns
error to the application.

To avoid these quick retry/retries exhausted scenarios change the return
code given to the midlayer to DID_REQUEUE rather than DID_ERROR. This gets
them retried, and eventually succeed when the link recovers.

Link: https://lore.kernel.org/r/20211204002644.116455-3-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/lpfc/lpfc_hw.h
drivers/scsi/lpfc/lpfc_scsi.c