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authorTom Herbert <tom@herbertland.com>2016-04-05 18:22:51 +0300
committerDavid S. Miller <davem@davemloft.net>2016-04-07 23:53:29 +0300
commita6024562ffd7e0f31bc6671817840ad1e91de7b4 (patch)
tree6d5ea1150eb18e8a3b0626913034b162cdf9d74d /include/linux/udp.h
parent63058308cd55182bbfd7a87970bd57883fcfbd2e (diff)
downloadlinux-a6024562ffd7e0f31bc6671817840ad1e91de7b4.tar.xz
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/linux/udp.h')
-rw-r--r--include/linux/udp.h8
1 files changed, 8 insertions, 0 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)