1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 6c90b6801cbd..5020f11ae10f 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -4110,6 +4110,9 @@ static void ixgbe_watchdog_task(struct work_struct *work)
         struct ixgbe_hw *hw = &adapter->hw;
         u32 link_speed = adapter->link_speed;
         bool link_up = adapter->link_up;
+        int i;
+        struct ixgbe_ring *tx_ring;
+        int some_tx_pending = 0;
 
         adapter->flags |= IXGBE_FLAG_IN_WATCHDOG_TASK;
 
@@ -4167,6 +4170,25 @@ static void ixgbe_watchdog_task(struct work_struct *work)
                 }
         }
 
+        if (!netif_carrier_ok(netdev)) {
+                for (i = 0; i < adapter->num_tx_queues; i++) {
+                        tx_ring = &adapter->tx_ring[i];
+                        if (tx_ring->next_to_use != tx_ring->next_to_clean) {
+                                some_tx_pending = 1;
+                                break;
+                        }
+                }
+
+                if (some_tx_pending) {
+                        /* We've lost link, so the controller stops DMA,
+                         * but we've got queued Tx work that's never going
+                         * to get done, so reset controller to flush Tx.
+                         * (Do the reset outside of interrupt context).
+                         */
+                         schedule_work(&adapter->reset_task);
+                }
+        }
+
         ixgbe_update_stats(adapter);
         adapter->flags &= ~IXGBE_FLAG_IN_WATCHDOG_TASK;
 }