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scsi: qla2xxx: edif: Reduce disruption due to multiple app start

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Multiple app start can trigger a session bounce. Make driver skip over
session teardown if app start is seen more than once.

Link: https://lore.kernel.org/r/20220608115849.16693-4-njavali@marvell.com
Fixes: 7ebb336e45ef ("scsi: qla2xxx: edif: Add start + stop bsgs")
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>
This commit is contained in:
Quinn Tran 2022-06-08 04:58:42 -07:00 committed by Martin K. Petersen
parent 2b659ed67a
commit 0dbfce5255
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/qla2xxx/qla_edif.c
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@ -510,8 +510,7 @@ qla_edif_app_start(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
/* mark doorbell as active since an app is now present */
vha->e_dbell.db_flags |= EDB_ACTIVE;
} else {
ql_dbg(ql_dbg_edif, vha, 0x911e, "%s doorbell already active\n",
__func__);
goto out;
}
if (N2N_TOPO(vha->hw)) {
@ -578,6 +577,7 @@ qla_edif_app_start(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
__func__);
}
out:
appreply.host_support_edif = vha->hw->flags.edif_enabled;
appreply.edif_enode_active = vha->pur_cinfo.enode_flags;
appreply.edif_edb_active = vha->e_dbell.db_flags;