Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into...

[deliverable/linux.git] / drivers / net / ethernet / intel / e1000 / e1000_main.c

diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 3bfbb8df898935f4acf47a52ebb8be3f0f683a67..bde337ee1a34f954e90c583711f155eec87b633e 100644 (file)
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -3149,6 +3149,17 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
                return NETDEV_TX_OK;
        }
 
+       /* On PCI/PCI-X HW, if packet size is less than ETH_ZLEN,
+        * packets may get corrupted during padding by HW.
+        * To WA this issue, pad all small packets manually.
+        */
+       if (skb->len < ETH_ZLEN) {
+               if (skb_pad(skb, ETH_ZLEN - skb->len))
+                       return NETDEV_TX_OK;
+               skb->len = ETH_ZLEN;
+               skb_set_tail_pointer(skb, ETH_ZLEN);
+       }
+
        mss = skb_shinfo(skb)->gso_size;
        /* The controller does a simple calculation to
         * make sure there is enough room in the FIFO before