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authorTom Herbert <tom@herbertland.com>2016-04-05 08:22:51 -0700
committerDavid S. Miller <davem@davemloft.net>2016-04-07 16:53:29 -0400
commita6024562ffd7e0f31bc6671817840ad1e91de7b4 (patch)
tree6d5ea1150eb18e8a3b0626913034b162cdf9d74d /include/net/udp.h
parent63058308cd55182bbfd7a87970bd57883fcfbd2e (diff)
udp: Add GRO functions to UDP socket
This patch adds GRO functions (gro_receive and gro_complete) to UDP sockets. udp_gro_receive is changed to perform socket lookup on a packet. If a socket is found the related GRO functions are called. This features obsoletes using UDP offload infrastructure for GRO (udp_offload). This has the advantage of not being limited to provide offload on a per port basis, GRO is now applied to whatever individual UDP sockets are bound to. This also allows the possbility of "application defined GRO"-- that is we can attach something like a BPF program to a UDP socket to perfrom GRO on an application layer protocol. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/udp.h')
-rw-r--r--include/net/udp.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/include/net/udp.h b/include/net/udp.h
index 3aa0b3ec1fb0..3c5a65e0946d 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -167,9 +167,12 @@ static inline void udp_csum_pull_header(struct sk_buff *skb)
UDP_SKB_CB(skb)->cscov -= sizeof(struct udphdr);
}
+typedef struct sock *(*udp_lookup_t)(struct sk_buff *skb, __be16 sport,
+ __be16 dport);
+
struct sk_buff **udp_gro_receive(struct sk_buff **head, struct sk_buff *skb,
- struct udphdr *uh);
-int udp_gro_complete(struct sk_buff *skb, int nhoff);
+ struct udphdr *uh, udp_lookup_t lookup);
+int udp_gro_complete(struct sk_buff *skb, int nhoff, udp_lookup_t lookup);
static inline struct udphdr *udp_gro_udphdr(struct sk_buff *skb)
{