[NET]: Generalise TSO-specific bits from skb_setup_caps

[powerpc.git] / net / ipv4 / tcp_ipv4.c

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 9e85c04..38e0010 100644 (file)
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -71,6 +71,7 @@
 #include <net/inet_common.h>
 #include <net/timewait_sock.h>
 #include <net/xfrm.h>
+#include <net/netdma.h>
 
 #include <linux/inet.h>
 #include <linux/ipv6.h>
@@ -241,6 +242,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
                goto failure;
 
        /* OK, now commit destination to socket.  */
+       sk->sk_gso_type = SKB_GSO_TCPV4;
        sk_setup_caps(sk, &rt->u.dst);
 
        if (!tp->write_seq)
@@ -883,6 +885,7 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
        if (!newsk)
                goto exit;
 
+       newsk->sk_gso_type = SKB_GSO_TCPV4;
        sk_setup_caps(newsk, dst);
 
        newtp                 = tcp_sk(newsk);
@@ -1091,8 +1094,18 @@ process:
        bh_lock_sock(sk);
        ret = 0;
        if (!sock_owned_by_user(sk)) {
-               if (!tcp_prequeue(sk, skb))
+#ifdef CONFIG_NET_DMA
+               struct tcp_sock *tp = tcp_sk(sk);
+               if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
+                       tp->ucopy.dma_chan = get_softnet_dma();
+               if (tp->ucopy.dma_chan)
                        ret = tcp_v4_do_rcv(sk, skb);
+               else
+#endif
+               {
+                       if (!tcp_prequeue(sk, skb))
+                       ret = tcp_v4_do_rcv(sk, skb);
+               }
        } else
                sk_add_backlog(sk, skb);
        bh_unlock_sock(sk);
@@ -1296,6 +1309,11 @@ int tcp_v4_destroy_sock(struct sock *sk)
        /* Cleans up our, hopefully empty, out_of_order_queue. */
        __skb_queue_purge(&tp->out_of_order_queue);
 
+#ifdef CONFIG_NET_DMA
+       /* Cleans up our sk_async_wait_queue */
+       __skb_queue_purge(&sk->sk_async_wait_queue);
+#endif
+
        /* Clean prequeue, it must be empty really */
        __skb_queue_purge(&tp->ucopy.prequeue);
 
@@ -1710,7 +1728,8 @@ static void get_tcp4_sock(struct sock *sp, char *tmpbuf, int i)
        sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX "
                        "%08X %5d %8d %lu %d %p %u %u %u %u %d",
                i, src, srcp, dest, 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,
@@ -1859,5 +1878,4 @@ EXPORT_SYMBOL(tcp_proc_unregister);
 #endif
 EXPORT_SYMBOL(sysctl_local_port_range);
 EXPORT_SYMBOL(sysctl_tcp_low_latency);
-EXPORT_SYMBOL(sysctl_tcp_tw_reuse);