3.13.11.11 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Vlad Yasevich <[email protected]>

[ Upstream commit 7d3083ee36b51e425b6abd76778a2046906b0fd3 ]

When receiving a vlan-tagged frame that still contains
a vlan header, the length of the packet will be greater
then MTU+ETH_HLEN since it will account of the extra
vlan header.  TG3 checks this for the case for 802.1Q,
but not for 802.1ad.  As a result, full sized 802.1ad
frames get dropped by the card.

Add a check for 802.1ad protocol when receving full
sized frames.

Suggested-by: Prashant Sreedharan <[email protected]>
CC: Prashant Sreedharan <[email protected]>
CC: Michael Chan <[email protected]>
Signed-off-by: Vladislav Yasevich <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Kamal Mostafa <[email protected]>
---
 drivers/net/ethernet/broadcom/tg3.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c 
b/drivers/net/ethernet/broadcom/tg3.c
index 072f401..1b84139 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -6907,7 +6907,8 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
                skb->protocol = eth_type_trans(skb, tp->dev);
 
                if (len > (tp->dev->mtu + ETH_HLEN) &&
-                   skb->protocol != htons(ETH_P_8021Q)) {
+                   skb->protocol != htons(ETH_P_8021Q) &&
+                   skb->protocol != htons(ETH_P_8021AD)) {
                        dev_kfree_skb(skb);
                        goto drop_it_no_recycle;
                }
-- 
1.9.1

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