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| author |   Steffen Klassert <steffen.klassert@secunet.com> | 2017-04-14 10:06:10 +0200 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2017-04-14 10:06:10 +0200 |
| commit | d77e38e612a017480157fe6d2c1422f42cb5b7e3 (patch) | |
| tree | ae95d5230477ab95e8f301e9123c9f698a530551 /net/ipv4/xfrm4_output.c | |
| parent | xfrm: Add mode handlers for IPsec on layer 2 (diff) | |
| download | linux-dev-d77e38e612a017480157fe6d2c1422f42cb5b7e3.tar.xz linux-dev-d77e38e612a017480157fe6d2c1422f42cb5b7e3.zip | |
xfrm: Add an IPsec hardware offloading API
This patch adds all the bits that are needed to do
IPsec hardware offload for IPsec states and ESP packets.
We add xfrmdev_ops to the net_device. xfrmdev_ops has
function pointers that are needed to manage the xfrm
states in the hardware and to do a per packet
offloading decision.
Joint work with:
Ilan Tayari <ilant@mellanox.com>
Guy Shapiro <guysh@mellanox.com>
Yossi Kuperman <yossiku@mellanox.com>
Signed-off-by: Guy Shapiro <guysh@mellanox.com>
Signed-off-by: Ilan Tayari <ilant@mellanox.com>
Signed-off-by: Yossi Kuperman <yossiku@mellanox.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/ipv4/xfrm4_output.c')
| -rw-r--r-- | net/ipv4/xfrm4_output.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c index 7ee6518afa86..94b8702603bc 100644 --- a/net/ipv4/xfrm4_output.c +++ b/net/ipv4/xfrm4_output.c @@ -29,7 +29,8 @@ static int xfrm4_tunnel_check_size(struct sk_buff *skb) goto out; mtu = dst_mtu(skb_dst(skb)); - if (skb->len > mtu) { + if ((!skb_is_gso(skb) && skb->len > mtu) || + (skb_is_gso(skb) && skb_gso_network_seglen(skb) > ip_skb_dst_mtu(skb->sk, skb))) { skb->protocol = htons(ETH_P_IP); if (skb->sk) |