Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

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

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 233bdf2..25ecc6e 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>
@@ -900,6 +901,7 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
                inet_csk(newsk)->icsk_ext_hdr_len = newinet->opt->optlen;
        newinet->id = newtp->write_seq ^ jiffies;
 
+       tcp_mtup_init(newsk);
        tcp_sync_mss(newsk, dst_mtu(dst));
        newtp->advmss = dst_metric(dst, RTAX_ADVMSS);
        tcp_initialize_rcv_mss(newsk);
@@ -1090,8 +1092,18 @@ 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);
@@ -1216,17 +1228,21 @@ int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw)
 }
 
 struct inet_connection_sock_af_ops ipv4_specific = {
-       .queue_xmit     =       ip_queue_xmit,
-       .send_check     =       tcp_v4_send_check,
-       .rebuild_header =       inet_sk_rebuild_header,
-       .conn_request   =       tcp_v4_conn_request,
-       .syn_recv_sock  =       tcp_v4_syn_recv_sock,
-       .remember_stamp =       tcp_v4_remember_stamp,
-       .net_header_len =       sizeof(struct iphdr),
-       .setsockopt     =       ip_setsockopt,
-       .getsockopt     =       ip_getsockopt,
-       .addr2sockaddr  =       inet_csk_addr2sockaddr,
-       .sockaddr_len   =       sizeof(struct sockaddr_in),
+       .queue_xmit        = ip_queue_xmit,
+       .send_check        = tcp_v4_send_check,
+       .rebuild_header    = inet_sk_rebuild_header,
+       .conn_request      = tcp_v4_conn_request,
+       .syn_recv_sock     = tcp_v4_syn_recv_sock,
+       .remember_stamp    = tcp_v4_remember_stamp,
+       .net_header_len    = sizeof(struct iphdr),
+       .setsockopt        = ip_setsockopt,
+       .getsockopt        = ip_getsockopt,
+       .addr2sockaddr     = inet_csk_addr2sockaddr,
+       .sockaddr_len      = sizeof(struct sockaddr_in),
+#ifdef CONFIG_COMPAT
+       .compat_setsockopt = compat_ip_setsockopt,
+       .compat_getsockopt = compat_ip_getsockopt,
+#endif
 };
 
 /* NOTE: A lot of things set to zero explicitly by call to
@@ -1291,6 +1307,11 @@ 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);
 
@@ -1825,23 +1846,16 @@ struct proto tcp_prot = {
        .obj_size               = sizeof(struct tcp_sock),
        .twsk_prot              = &tcp_timewait_sock_ops,
        .rsk_prot               = &tcp_request_sock_ops,
+#ifdef CONFIG_COMPAT
+       .compat_setsockopt      = compat_tcp_setsockopt,
+       .compat_getsockopt      = compat_tcp_getsockopt,
+#endif
 };
 
-
-
 void __init tcp_v4_init(struct net_proto_family *ops)
 {
-       int err = sock_create_kern(PF_INET, SOCK_RAW, IPPROTO_TCP, &tcp_socket);
-       if (err < 0)
+       if (inet_csk_ctl_sock_create(&tcp_socket, PF_INET, SOCK_RAW, IPPROTO_TCP) < 0)
                panic("Failed to create the TCP control socket.\n");
-       tcp_socket->sk->sk_allocation   = GFP_ATOMIC;
-       inet_sk(tcp_socket->sk)->uc_ttl = -1;
-
-       /* Unhash it so that IP input processing does not even
-        * see it, we do not wish this socket to see incoming
-        * packets.
-        */
-       tcp_socket->sk->sk_prot->unhash(tcp_socket->sk);
 }
 
 EXPORT_SYMBOL(ipv4_specific);
@@ -1861,5 +1875,4 @@ EXPORT_SYMBOL(tcp_proc_unregister);
 #endif
 EXPORT_SYMBOL(sysctl_local_port_range);
 EXPORT_SYMBOL(sysctl_tcp_low_latency);
-EXPORT_SYMBOL(sysctl_tcp_tw_reuse);