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net: Add GSO support for UDP tunnels with checksum

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Added a new netif feature for GSO_UDP_TUNNEL_CSUM. This indicates
that a device is capable of computing the UDP checksum in the
encapsulating header of a UDP tunnel.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2014-06-04 17:20:16 -07:00 • committed by David S. Miller
parent e9c3a24b3a
commit 0f4f4ffa7b
8 changed files with 32 additions and 24 deletions
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net/ipv4/tcp_offload.c
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@ -61,6 +61,7 @@ struct sk_buff *tcp_gso_segment(struct sk_buff *skb,
SKB_GSO_SIT |
SKB_GSO_MPLS |
SKB_GSO_UDP_TUNNEL |
SKB_GSO_UDP_TUNNEL_CSUM |
0) ||
!(type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))))
goto out;