[IPV6]: Added GSO support for TCPv6

[linux-3.10.git] / net / ipv6 / tcp_ipv6.c

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 301eee726b0ff64eb8e3dc24b4432550e28de876..7ea5bea49aa947f98f9b4bf295fb870754e7a845 100644 (file)
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -270,9 +270,8 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
        ipv6_addr_copy(&np->saddr, saddr);
        inet->rcv_saddr = LOOPBACK4_IPV6;
 
+       sk->sk_gso_type = SKB_GSO_TCPV6;
        ip6_dst_store(sk, dst, NULL);
-       sk->sk_route_caps = dst->dev->features &
-               ~(NETIF_F_IP_CSUM | NETIF_F_TSO);
 
        icsk->icsk_ext_hdr_len = 0;
        if (np->opt)
@@ -930,9 +929,8 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
         * comment in that function for the gory details. -acme
         */
 
+       sk->sk_gso_type = SKB_GSO_TCPV6;
        ip6_dst_store(newsk, dst, NULL);
-       newsk->sk_route_caps = dst->dev->features &
-               ~(NETIF_F_IP_CSUM | NETIF_F_TSO);
 
        newtcp6sk = (struct tcp6_sock *)newsk;
        inet_sk(newsk)->pinet6 = &newtcp6sk->inet6;
@@ -1218,8 +1216,16 @@ process:
        bh_lock_sock(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 +1467,8 @@ 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 +1604,7 @@ struct proto tcpv6_prot = {
 static struct inet6_protocol tcpv6_protocol = {
        .handler        =       tcp_v6_rcv,
        .err_handler    =       tcp_v6_err,
+       .gso_segment    =       tcp_tso_segment,
        .flags          =       INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
 };