From: Quinn Tran <qutran@marvell.com>
Date: Mon, 6 Jun 2022 21:46:26 -0700
Subject: scsi: qla2xxx: edif: Fix n2n login retry for secure device
Patch-mainline: v6.0-rc1
Git-commit: aec55325ddec975216119da000092cb8664a3399
References: bsc#1201160
After initiator has burned up all login retries, target authentication
application begins to run. This triggers a link bounce on target side.
Initiator will attempt another login. Due to N2N, the PRLI [nvme | fcp] can
fail because of the mode mismatch with target. This patch add a few more
login retries to revive the connection.
Link: https://lore.kernel.org/r/20220607044627.19563-11-njavali@marvell.com
Fixes: 4de067e5df12 ("scsi: qla2xxx: edif: Add N2N support for EDIF")
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>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
drivers/scsi/qla2xxx/qla_init.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index ec1722e86f10..d915c1f85fa2 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -2123,6 +2123,13 @@ qla24xx_handle_prli_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
}
if (N2N_TOPO(vha->hw)) {
+ if (ea->fcport->n2n_link_reset_cnt ==
+ vha->hw->login_retry_count &&
+ ea->fcport->flags & FCF_FCSP_DEVICE) {
+ /* remote authentication app just started */
+ ea->fcport->n2n_link_reset_cnt = 0;
+ }
+
if (ea->fcport->n2n_link_reset_cnt <
vha->hw->login_retry_count) {
ea->fcport->n2n_link_reset_cnt++;
--
2.29.2