e1000e: add Tx timeout factor for 100Mbps

On some devices (e.g. 82578) not having a Tx timeout factor when linked at
100Mbps can cause false reports of hardware hangs on busy hubs.

Signed-off-by: Bruce Allan <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index a1a5a6f15a65b8de274bc31ebb04a2de4b7e1a6d..63458270ce1be9f2ab1073223168c7a43c0c9095 100644 (file)
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -3627,7 +3627,7 @@ static void e1000_watchdog_task(struct work_struct *work)
                        case SPEED_100:
                                txb2b = 0;
                                netdev->tx_queue_len = 100;
-                               /* maybe add some timeout factor ? */
+                               adapter->tx_timeout_factor = 10;
                                break;
                        }