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authorHao Zheng <hzheng@nicira.com>2010-11-11 13:47:58 +0000
committerDavid S. Miller <davem@davemloft.net>2010-11-12 12:30:57 -0800
commitd0d9d8ef5949551276f635cb04969184ba1a9553 (patch)
treeaf047399a863775870adf28a476056526704a612
parent0a85df004667c99efc31fab07386823eefce3be5 (diff)
bnx2x: Look inside vlan when determining checksum proto.
Currently the skb->protocol field is used to setup checksum offloading on transmit for the correct protocol. However, if vlan offloading is disabled or otherwise not used, the protocol field will be ETH_P_8021Q, not the actual protocol. This will cause the checksum to be not computed correctly, even though the hardware is capable of looking inside vlan tags. Instead, look inside the header if necessary to determine the correct protocol type. To some extent this fixes a regression from 2.6.36 because it was previously not possible to disable vlan offloading and this error case was not exposed. Signed-off-by: Hao Zheng <hzheng@nicira.com> CC: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/bnx2x/bnx2x_cmn.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/bnx2x/bnx2x_cmn.c b/drivers/net/bnx2x/bnx2x_cmn.c
index 459614d2d7bc..94d5f59d5a6f 100644
--- a/drivers/net/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/bnx2x/bnx2x_cmn.c
@@ -1680,7 +1680,7 @@ static inline u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb)
rc = XMIT_PLAIN;
else {
- if (skb->protocol == htons(ETH_P_IPV6)) {
+ if (vlan_get_protocol(skb) == htons(ETH_P_IPV6)) {
rc = XMIT_CSUM_V6;
if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
rc |= XMIT_CSUM_TCP;