From 97fc2f0848c928c63c2ae619deee61a0b1107b69 Mon Sep 17 00:00:00 2001
From: Chris Leech <christopher.leech@intel.com>
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 <christopher.leech@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
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 v1.2.3
From 624d1164730d58a494cc5aa4afa37d02c41e83a7 Mon Sep 17 00:00:00 2001
From: Chris Leech <christopher.leech@intel.com>
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 <christopher.leech@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
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 v1.2.3
From b38dfee3d616ffadb58d4215e3ff9d1d7921031e Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
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 <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
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 v1.2.3