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 <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index a1a5a6f..6345827 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;
                        }