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qla2xxx: Fix stale session

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On fast cable pull, where driver is unable to detect device has disappeared
and came back based on switch info, qla2xxx would not re-login while remote
port has already invalidated the session.  This causes IO timeout.  This
patch would relogin to remote device for RSCN affected port.

Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-6-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

[ commit 2037ce49d30a0d07348df406ef78f6664f4bc899 upstream ]


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8637 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2019-11-03 00:20:56 +00:00
parent 47365ea306
commit 77fa14773b
1 changed files with 3 additions and 2 deletions
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5
qla2x00t-32gbit/qla_gs.c
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@@ -3628,7 +3628,6 @@ void qla24xx_async_gnnft_done(scsi_qla_host_t *vha, srb_t *sp)
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (memcmp(rp->port_name, fcport->port_name, WWN_SIZE))
continue;
fcport->scan_needed = 0;
fcport->scan_state = QLA_FCPORT_FOUND;
found = true;
/*
@@ -3637,10 +3636,12 @@ void qla24xx_async_gnnft_done(scsi_qla_host_t *vha, srb_t *sp)
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
qla2x00_clear_loop_id(fcport);
fcport->flags |= FCF_FABRIC_DEVICE;
} else if (fcport->d_id.b24 != rp->id.b24) {
} else if (fcport->d_id.b24 != rp->id.b24 ||
fcport->scan_needed) {
qlt_schedule_sess_for_deletion(fcport);
}
fcport->d_id.b24 = rp->id.b24;
fcport->scan_needed = 0;
break;
}