Commit 7d3083ee authored by Vlad Yasevich's avatar Vlad Yasevich Committed by David S. Miller
Browse files

tg3: Allow for recieve of full-size 8021AD frames

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: default avatarPrashant Sreedharan <>
CC: Prashant Sreedharan <>
CC: Michael Chan <>
Signed-off-by: default avatarVladislav Yasevich <>
Signed-off-by: default avatarDavid S. Miller <>
parent f561de33
......@@ -6918,7 +6918,8 @@ 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)) {
goto drop_it_no_recycle;
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