From: Shannon Nelson <snelson@pensando.io>
Date: Fri, 27 Mar 2020 20:14:42 -0700
Subject: ionic: check for linkup in watchdog
Patch-mainline: v5.7-rc1
Git-commit: 987c0871e8ae8991f7f0f08489d883fa19e13f82
References: bsc#1167773

Add a link_status_check to the heartbeat watchdog.

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_dev.c |    6 +++++-
 drivers/net/ethernet/pensando/ionic/ionic_lif.c |    2 +-
 drivers/net/ethernet/pensando/ionic/ionic_lif.h |    1 +
 3 files changed, 7 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/pensando/ionic/ionic_dev.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.c
@@ -14,11 +14,15 @@
 static void ionic_watchdog_cb(struct timer_list *t)
 {
 	struct ionic *ionic = from_timer(ionic, t, watchdog_timer);
+	int hb;
 
 	mod_timer(&ionic->watchdog_timer,
 		  round_jiffies(jiffies + ionic->watchdog_period));
 
-	ionic_heartbeat_check(ionic);
+	hb = ionic_heartbeat_check(ionic);
+
+	if (hb >= 0 && ionic->master_lif)
+		ionic_link_status_check_request(ionic->master_lif);
 }
 
 void ionic_init_devinfo(struct ionic *ionic)
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -105,7 +105,7 @@ static void ionic_link_status_check(stru
 	clear_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state);
 }
 
-static void ionic_link_status_check_request(struct ionic_lif *lif)
+void ionic_link_status_check_request(struct ionic_lif *lif)
 {
 	struct ionic_deferred_work *work;
 
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.h
@@ -224,6 +224,7 @@ static inline u32 ionic_coal_hw_to_usec(
 	return (units * div) / mult;
 }
 
+void ionic_link_status_check_request(struct ionic_lif *lif);
 int ionic_lifs_alloc(struct ionic *ionic);
 void ionic_lifs_free(struct ionic *ionic);
 void ionic_lifs_deinit(struct ionic *ionic);