ionic: keep filters across FLR

Make sure we keep and replay the filters and RSS config across
an FLR by using our FW_RESET flag.  This gets checked on the
way down and on the way back up to help determine how much LIF
state to keep and restore across a reset action.
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/pensando/ionic/ionic_bus_pci.c

@@ -416,6 +416,8 @@ static void ionic_reset_prepare(struct pci_dev *pdev)
 
 	dev_dbg(ionic->dev, "%s: device stopping\n", __func__);
 
+	set_bit(IONIC_LIF_F_FW_RESET, lif->state);
+
 	del_timer_sync(&ionic->watchdog_timer);
 	cancel_work_sync(&lif->deferred.work);