3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Vlad Yasevich <vyasevich@xxxxxxxxx>
[ 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 <prashant@xxxxxxxxxxxx>
CC: Prashant Sreedharan <prashant@xxxxxxxxxxxx>
CC: Michael Chan <mchan@xxxxxxxxxxxx>
Signed-off-by: Vladislav Yasevich <vyasevic@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/broadcom/tg3.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -6923,7 +6923,8 @@ static int tg3_rx(struct tg3_napi *tnapi
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;
}
--
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