diff options
| author | Pravin B Shelar <pshelar@nicira.com> | 2013-02-14 14:02:41 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-02-15 15:17:11 -0500 |
| commit | 68c331631143f5f039baac99a650e0b9e1ea02b6 (patch) | |
| tree | c69d73c5599aab5e92a8c99bc5343c9fc9ffbbd8 /net/ipv4/tcp.c | |
| parent | 05e8ef4ab2d8087d360e814d14da20b9f7fb2283 (diff) | |
| download | linux-rt-68c331631143f5f039baac99a650e0b9e1ea02b6.tar.gz | |
v4 GRE: Add TCP segmentation offload for GRE
Following patch adds GRE protocol offload handler so that
skb_gso_segment() can segment GRE packets.
SKB GSO CB is added to keep track of total header length so that
skb_segment can push entire header. e.g. in case of GRE, skb_segment
need to push inner and outer headers to every segment.
New NETIF_F_GRE_GSO feature is added for devices which support HW
GRE TSO offload. Currently none of devices support it therefore GRE GSO
always fall backs to software GSO.
[ Compute pkt_len before ip_local_out() invocation. -DaveM ]
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 1f0bedb8622f..7a5ba48c2cc9 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3043,6 +3043,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, SKB_GSO_DODGY | SKB_GSO_TCP_ECN | SKB_GSO_TCPV6 | + SKB_GSO_GRE | 0) || !(type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)))) goto out; |