bnx2: Correctly receive full sized 802.1ad fragmes

This driver, similar to tg3, has a check that will cause full sized 802.1ad frames to be dropped. The frame will be larger then the standard mtu due to the presense of vlan header that has not been stripped. The driver should not drop this frame and should process it just like it does for 802.1q. CC: Sony Chacko <[email protected]> CC: [email protected] Signed-off-by: Vladislav Yasevich <[email protected]> Signed-off-by: David S. Miller <[email protected]>
josf · Oct 1, 2014 · 1b0ecb2 · 1b0ecb2
1 parent 7d3083e
commit 1b0ecb2
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
@@ -3236,8 +3236,9 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
 
 		skb->protocol = eth_type_trans(skb, bp->dev);
 
-		if ((len > (bp->dev->mtu + ETH_HLEN)) &&
-			(ntohs(skb->protocol) != 0x8100)) {
+		if (len > (bp->dev->mtu + ETH_HLEN) &&
+		    skb->protocol != htons(0x8100) &&
+		    skb->protocol != htons(ETH_P_8021AD)) {
 
 			dev_kfree_skb(skb);
 			goto next_rx;