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| 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/core/dev.c | |
| parent | 05e8ef4ab2d8087d360e814d14da20b9f7fb2283 (diff) | |
| download | linux-68c331631143f5f039baac99a650e0b9e1ea02b6.tar.bz2 | |
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/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 67deae60214c..1cd6297fd34b 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2413,6 +2413,7 @@ struct sk_buff *__skb_gso_segment(struct sk_buff *skb, return ERR_PTR(err); } + SKB_GSO_CB(skb)->mac_offset = skb_headroom(skb); skb_reset_mac_header(skb); skb_reset_mac_len(skb); |