From: Shannon Nelson snelson@pensando.io
[ Upstream commit 9cb9dadb8f45c67e4310e002c2f221b70312b293 ]
There is a case found in heavy testing where a link flap happens just before a firmware Recovery event and the driver gets stuck in the BROKEN state. This comes from the driver getting interrupted by a FW generation change when coming back up from the link flap, and the call to ionic_start_queues() in ionic_link_status_check() fails. This can be addressed by having the fw_up code clear the BROKEN bit if seen, rather than waiting for a user to manually force the interface down and then back up.
Fixes: 9e8eaf8427b6 ("ionic: stop watchdog when in broken state") Signed-off-by: Shannon Nelson snelson@pensando.io Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/pensando/ionic/ionic_lif.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c index abfb5efc52b86..226867e65625e 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c @@ -3016,6 +3016,9 @@ static void ionic_lif_handle_fw_up(struct ionic_lif *lif)
mutex_lock(&lif->queue_lock);
+ if (test_and_clear_bit(IONIC_LIF_F_BROKEN, lif->state)) + dev_info(ionic->dev, "FW Up: clearing broken state\n"); + err = ionic_qcqs_alloc(lif); if (err) goto err_unlock;