scsi: qla2xxx: Fix hang due to session stuck
authorQuinn Tran <qutran@marvell.com>
Thu, 10 Mar 2022 09:25:58 +0000 (01:25 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 15 Apr 2022 12:18:26 +0000 (14:18 +0200)
commit4a0a3c66a58efe2ec5da291104776aefc8cb2cf7
tree87bb2613f8e6f35e51126692554be550613b1cba
parent9d1651c8a40d782aa06a7c6ef04f80dae59681ef
scsi: qla2xxx: Fix hang due to session stuck

commit c02aada06d19a215c8291bd968a99a270e96f734 upstream.

User experienced device lost. The log shows Get port data base command was
queued up, failed, and requeued again. Every time it is requeued, it set
the FCF_ASYNC_ACTIVE. This prevents any recovery code from occurring
because driver thinks a recovery is in progress for this session. In
essence, this session is hung.  The reason it gets into this place is the
session deletion got in front of this call due to link perturbation.

Break the requeue cycle and exit.  The session deletion code will trigger a
session relogin.

Link: https://lore.kernel.org/r/20220310092604.22950-8-njavali@marvell.com
Fixes: 726b85487067 ("qla2xxx: Add framework for async fabric discovery")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/scsi/qla2xxx/qla_def.h
drivers/scsi/qla2xxx/qla_init.c