diff options
| author | Joe Stringer <joestringer@nicira.com> | 2014-11-17 16:24:54 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-18 15:38:44 -0500 |
| commit | 11bf7828a59880427403e13dcff8228d67e9e0f7 (patch) | |
| tree | 35bc60b412b19009bd5bf604b2e8d98f3116d125 /include | |
| parent | feb91a02ccb09661507f170b2a444aec94f307f9 (diff) | |
| download | linux-11bf7828a59880427403e13dcff8228d67e9e0f7.tar.bz2 | |
vxlan: Inline vxlan_gso_check().
Suggested-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Joe Stringer <joestringer@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/vxlan.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/include/net/vxlan.h b/include/net/vxlan.h index afadf8e53f20..57cccd0052e5 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -8,6 +8,12 @@ #define VNI_HASH_BITS 10 #define VNI_HASH_SIZE (1<<VNI_HASH_BITS) +/* VXLAN protocol header */ +struct vxlanhdr { + __be32 vx_flags; + __be32 vx_vni; +}; + struct vxlan_sock; typedef void (vxlan_rcv_t)(struct vxlan_sock *vh, struct sk_buff *skb, __be32 key); @@ -45,7 +51,17 @@ int vxlan_xmit_skb(struct vxlan_sock *vs, __be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df, __be16 src_port, __be16 dst_port, __be32 vni, bool xnet); -bool vxlan_gso_check(struct sk_buff *skb); +static inline bool vxlan_gso_check(struct sk_buff *skb) +{ + if ((skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL) && + (skb->inner_protocol_type != ENCAP_TYPE_ETHER || + skb->inner_protocol != htons(ETH_P_TEB) || + (skb_inner_mac_header(skb) - skb_transport_header(skb) != + sizeof(struct udphdr) + sizeof(struct vxlanhdr)))) + return false; + + return true; +} /* IP header + UDP + VXLAN + Ethernet header */ #define VXLAN_HEADROOM (20 + 8 + 8 + 14) |