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ixgbe: Fix checksum error when using stacked vlan

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When a skb has multiple vlans and it is CHECKSUM_PARTIAL,
ixgbe_tx_csum() fails to get the network protocol and checksum related
descriptor fields are not configured correctly because skb->protocol
doesn't show the L3 protocol in this case.

Use vlan_get_protocol() to get the proper network protocol.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Toshiaki Makita 2015-01-29 20:37:09 +09:00 committed by David S. Miller
parent 72b1405964
commit 0213668f06
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
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@ -7227,11 +7227,11 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
if (!vhdr)
goto out_drop;
protocol = vhdr->h_vlan_encapsulated_proto;
tx_flags |= ntohs(vhdr->h_vlan_TCI) <<
IXGBE_TX_FLAGS_VLAN_SHIFT;
tx_flags |= IXGBE_TX_FLAGS_SW_VLAN;
}
protocol = vlan_get_protocol(skb);
if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
adapter->ptp_clock &&