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| author | Tom Herbert <tom@herbertland.com> | 2016-04-05 08:22:51 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-07 16:53:29 -0400 |
| commit | a6024562ffd7e0f31bc6671817840ad1e91de7b4 (patch) | |
| tree | 6d5ea1150eb18e8a3b0626913034b162cdf9d74d /include | |
| parent | 63058308cd55182bbfd7a87970bd57883fcfbd2e (diff) | |
| download | linux-a6024562ffd7e0f31bc6671817840ad1e91de7b4.tar.gz linux-a6024562ffd7e0f31bc6671817840ad1e91de7b4.tar.bz2 linux-a6024562ffd7e0f31bc6671817840ad1e91de7b4.zip | |
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')
| -rw-r--r-- | include/linux/udp.h | 8 | ||||
| -rw-r--r-- | include/net/udp.h | 7 |
2 files changed, 13 insertions, 2 deletions
diff --git a/include/linux/udp.h b/include/linux/udp.h index 32342754643a..d1fd8cd39478 100644 --- a/include/linux/udp.h +++ b/include/linux/udp.h @@ -71,6 +71,14 @@ struct udp_sock { */ int (*encap_rcv)(struct sock *sk, struct sk_buff *skb); void (*encap_destroy)(struct sock *sk); + + /* GRO functions for UDP socket */ + struct sk_buff ** (*gro_receive)(struct sock *sk, + struct sk_buff **head, + struct sk_buff *skb); + int (*gro_complete)(struct sock *sk, + struct sk_buff *skb, + int nhoff); }; static inline struct udp_sock *udp_sk(const struct sock *sk) 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) { |