From: Shannon Nelson <snelson@pensando.io>
Date: Fri, 27 Aug 2021 11:55:07 -0700
Subject: ionic: fire watchdog again after fw_down
Patch-mainline: v5.15-rc1
Git-commit: d3e2dcdb6853ee263283121360f5facb73627cfd
References: jsc#SLE-19282
In some cases of fw_down it was called because there was a
fw_generation change, and the firmware is already back up.
In order to keep the down time to a minimum, don't wait for
the next watchdog polling cycle, fire another watchdog off
as soon as we can - an out-of-cycle check won't hurt, and
may well speed up the recovery.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/pensando/ionic/ionic_lif.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -93,10 +93,17 @@ static void ionic_lif_deferred_work(stru
ionic_link_status_check(lif);
break;
case IONIC_DW_TYPE_LIF_RESET:
- if (w->fw_status)
+ if (w->fw_status) {
ionic_lif_handle_fw_up(lif);
- else
+ } else {
ionic_lif_handle_fw_down(lif);
+
+ /* Fire off another watchdog to see
+ * if the FW is already back rather than
+ * waiting another whole cycle
+ */
+ mod_timer(&lif->ionic->watchdog_timer, jiffies + 1);
+ }
break;
default:
break;