From 97fc2f0848c928c63c2ae619deee61a0b1107b69 Mon Sep 17 00:00:00 2001 From: Chris Leech Date: Tue, 23 May 2006 17:55:33 -0700 Subject: [I/OAT]: Structure changes for TCP recv offload to I/OAT Adds an async_wait_queue and some additional fields to tcp_sock, and a dma_cookie_t to sk_buff. Signed-off-by: Chris Leech Signed-off-by: David S. Miller --- include/net/sock.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/net/sock.h') diff --git a/include/net/sock.h b/include/net/sock.h index c9fad6fb629b..90c65cb091a8 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -132,6 +132,7 @@ struct sock_common { * @sk_receive_queue: incoming packets * @sk_wmem_alloc: transmit queue bytes committed * @sk_write_queue: Packet sending queue + * @sk_async_wait_queue: DMA copied packets * @sk_omem_alloc: "o" is "option" or "other" * @sk_wmem_queued: persistent queue size * @sk_forward_alloc: space allocated forward @@ -205,6 +206,7 @@ struct sock { atomic_t sk_omem_alloc; struct sk_buff_head sk_receive_queue; struct sk_buff_head sk_write_queue; + struct sk_buff_head sk_async_wait_queue; int sk_wmem_queued; int sk_forward_alloc; gfp_t sk_allocation; -- cgit v1.2.1 From 624d1164730d58a494cc5aa4afa37d02c41e83a7 Mon Sep 17 00:00:00 2001 From: Chris Leech Date: Tue, 23 May 2006 18:01:28 -0700 Subject: [I/OAT]: Make sk_eat_skb I/OAT aware. Add an extra argument to sk_eat_skb, and make it move early copied packets to the async_wait_queue instead of freeing them. Signed-off-by: Chris Leech Signed-off-by: David S. Miller --- include/net/sock.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'include/net/sock.h') diff --git a/include/net/sock.h b/include/net/sock.h index 90c65cb091a8..75b0e97ed93d 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1273,11 +1273,22 @@ sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) * This routine must be called with interrupts disabled or with the socket * locked so that the sk_buff queue operation is ok. */ -static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb) +#ifdef CONFIG_NET_DMA +static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, int copied_early) +{ + __skb_unlink(skb, &sk->sk_receive_queue); + if (!copied_early) + __kfree_skb(skb); + else + __skb_queue_tail(&sk->sk_async_wait_queue, skb); +} +#else +static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, int copied_early) { __skb_unlink(skb, &sk->sk_receive_queue); __kfree_skb(skb); } +#endif extern void sock_enable_timestamp(struct sock *sk); extern int sock_get_timestamp(struct sock *, struct timeval __user *); -- cgit v1.2.1 From b38dfee3d616ffadb58d4215e3ff9d1d7921031e Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Fri, 9 Jun 2006 16:13:01 -0700 Subject: [NET]: skb_trim audit I found a few more spots where pskb_trim_rcsum could be used but were not. This patch changes them to use it. Also, sk_filter can get paged skb data. Therefore we must use pskb_trim instead of skb_trim. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- include/net/sock.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/net/sock.h') diff --git a/include/net/sock.h b/include/net/sock.h index 75b0e97ed93d..96565ff0de6a 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -873,10 +873,7 @@ static inline int sk_filter(struct sock *sk, struct sk_buff *skb, int needlock) if (filter) { unsigned int pkt_len = sk_run_filter(skb, filter->insns, filter->len); - if (!pkt_len) - err = -EPERM; - else - skb_trim(skb, pkt_len); + err = pkt_len ? pskb_trim(skb, pkt_len) : -EPERM; } if (needlock) -- cgit v1.2.1