X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=net%2Fipv6%2Ftcp_ipv6.c;h=72c074ce40951e802de82d445b81fc793ba70d6f;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hp=301eee726b0ff64eb8e3dc24b4432550e28de876;hpb=43bc926fffd92024b46cafaf7350d669ba9ca884;p=linux-2.6.git

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 301eee726..72c074ce4 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -26,7 +26,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/socket.h>
@@ -270,9 +269,8 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 	ipv6_addr_copy(&np->saddr, saddr);
 	inet->rcv_saddr = LOOPBACK4_IPV6;
 
-	ip6_dst_store(sk, dst, NULL);
-	sk->sk_route_caps = dst->dev->features &
-		~(NETIF_F_IP_CSUM | NETIF_F_TSO);
+	sk->sk_gso_type = SKB_GSO_TCPV6;
+	__ip6_dst_store(sk, dst, NULL);
 
 	icsk->icsk_ext_hdr_len = 0;
 	if (np->opt)
@@ -429,7 +427,6 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	case TCP_SYN_RECV:  /* Cannot happen.
 			       It can, it SYNs are crossed. --ANK */ 
 		if (!sock_owned_by_user(sk)) {
-			TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
 			sk->sk_err = err;
 			sk->sk_error_report(sk);		/* Wake people up to see the error (see connect in sock.c) */
 
@@ -554,6 +551,24 @@ static void tcp_v6_send_check(struct sock *sk, int len, struct sk_buff *skb)
 	}
 }
 
+static int tcp_v6_gso_send_check(struct sk_buff *skb)
+{
+	struct ipv6hdr *ipv6h;
+	struct tcphdr *th;
+
+	if (!pskb_may_pull(skb, sizeof(*th)))
+		return -EINVAL;
+
+	ipv6h = skb->nh.ipv6h;
+	th = skb->h.th;
+
+	th->check = 0;
+	th->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, skb->len,
+				     IPPROTO_TCP, 0);
+	skb->csum = offsetof(struct tcphdr, check);
+	skb->ip_summed = CHECKSUM_HW;
+	return 0;
+}
 
 static void tcp_v6_send_reset(struct sk_buff *skb)
 {
@@ -815,7 +830,6 @@ drop:
 	if (req)
 		reqsk_free(req);
 
-	TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
 	return 0; /* don't send reset */
 }
 
@@ -930,9 +944,8 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 	 * comment in that function for the gory details. -acme
 	 */
 
-	ip6_dst_store(newsk, dst, NULL);
-	newsk->sk_route_caps = dst->dev->features &
-		~(NETIF_F_IP_CSUM | NETIF_F_TSO);
+	newsk->sk_gso_type = SKB_GSO_TCPV6;
+	__ip6_dst_store(newsk, dst, NULL);
 
 	newtcp6sk = (struct tcp6_sock *)newsk;
 	inet_sk(newsk)->pinet6 = &newtcp6sk->inet6;
@@ -1215,11 +1228,19 @@ process:
 
 	skb->dev = NULL;
 
-	bh_lock_sock(sk);
+	bh_lock_sock_nested(sk);
 	ret = 0;
 	if (!sock_owned_by_user(sk)) {
-		if (!tcp_prequeue(sk, skb))
-			ret = tcp_v6_do_rcv(sk, skb);
+#ifdef CONFIG_NET_DMA
+                struct tcp_sock *tp = tcp_sk(sk);
+                if (tp->ucopy.dma_chan)
+                        ret = tcp_v6_do_rcv(sk, skb);
+                else
+#endif
+		{
+			if (!tcp_prequeue(sk, skb))
+				ret = tcp_v6_do_rcv(sk, skb);
+		}
 	} else
 		sk_add_backlog(sk, skb);
 	bh_unlock_sock(sk);
@@ -1461,7 +1482,8 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
 		   dest->s6_addr32[0], dest->s6_addr32[1],
 		   dest->s6_addr32[2], dest->s6_addr32[3], destp,
 		   sp->sk_state, 
-		   tp->write_seq-tp->snd_una, tp->rcv_nxt-tp->copied_seq,
+		   tp->write_seq-tp->snd_una,
+		   (sp->sk_state == TCP_LISTEN) ? sp->sk_ack_backlog : (tp->rcv_nxt - tp->copied_seq),
 		   timer_active,
 		   jiffies_to_clock_t(timer_expires - jiffies),
 		   icsk->icsk_retransmits,
@@ -1597,6 +1619,8 @@ struct proto tcpv6_prot = {
 static struct inet6_protocol tcpv6_protocol = {
 	.handler	=	tcp_v6_rcv,
 	.err_handler	=	tcp_v6_err,
+	.gso_send_check	=	tcp_v6_gso_send_check,
+	.gso_segment	=	tcp_tso_segment,
 	.flags		=	INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
 };