scsi: qla2xxx: Fix erroneous link up failure
authorQuinn Tran <qutran@marvell.com>
Fri, 14 Jul 2023 07:00:59 +0000 (12:30 +0530)
committerMartin K. Petersen <martin.petersen@oracle.com>
Sun, 23 Jul 2023 20:27:47 +0000 (16:27 -0400)
commit5b51f35d127e7bef55fa869d2465e2bca4636454
tree7dadd22effa8153c782e8c159be65bdd391c887f
parentda7c21b72aa86e990af5f73bce6590b8d8d148d0
scsi: qla2xxx: Fix erroneous link up failure

Link up failure occurred where driver failed to see certain events from FW
indicating link up (AEN 8011) and fabric login completion (AEN 8014).
Without these 2 events, driver would not proceed forward to scan the
fabric. The cause of this is due to delay in the receive of interrupt for
Mailbox 60 that causes qla to set the fw_started flag late.  The late
setting of this flag causes other interrupts to be dropped.  These dropped
interrupts happen to be the link up (AEN 8011) and fabric login completion
(AEN 8014).

Set fw_started flag early to prevent interrupts being dropped.

Cc: stable@vger.kernel.org
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230714070104.40052-6-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/qla2xxx/qla_init.c
drivers/scsi/qla2xxx/qla_isr.c