[TCP]: Increase the max_burst threshold from 3 to tp->reordering.

[safe/jmp/linux-2.6] / include / net / tcp.h

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 11119e3..633147c 100644 (file)
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -139,6 +139,7 @@ extern void tcp_time_wait(struct sock *sk, int state, int timeo);
 #define MAX_TCP_KEEPINTVL      32767
 #define MAX_TCP_KEEPCNT                127
 #define MAX_TCP_SYNCNT         127
+#define MAX_TCP_ACCEPT_DEFERRED 65535
 
 #define TCP_SYNQ_INTERVAL      (HZ/5)  /* Period of SYNACK timer */
 
@@ -435,12 +436,15 @@ extern int                        tcp_disconnect(struct sock *sk, int flags);
 extern void                    tcp_unhash(struct sock *sk);
 
 /* From syncookies.c */
-extern __u32 syncookie_secret[2][16-3+SHA_DIGEST_WORDS];
+extern __u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS];
 extern struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb, 
                                    struct ip_options *opt);
 extern __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, 
                                     __u16 *mss);
 
+extern __u32 cookie_init_timestamp(struct request_sock *req);
+extern void cookie_check_timestamp(struct tcp_options_received *tcp_opt);
+
 /* From net/ipv6/syncookies.c */
 extern struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb);
 extern __u32 cookie_v6_init_sequence(struct sock *sk, struct sk_buff *skb,
@@ -759,6 +763,8 @@ static inline unsigned int tcp_packets_in_flight(const struct tcp_sock *tp)
        return tp->packets_out - tcp_left_out(tp) + tp->retrans_out;
 }
 
+extern int tcp_limit_reno_sacked(struct tcp_sock *tp);
+
 /* If cwnd > ssthresh, we may raise ssthresh to be half-way to cwnd.
  * The exception is rate halving phase, when cwnd is decreasing towards
  * ssthresh.
@@ -781,11 +787,14 @@ extern void tcp_enter_cwr(struct sock *sk, const int set_ssthresh);
 extern __u32 tcp_init_cwnd(struct tcp_sock *tp, struct dst_entry *dst);
 
 /* Slow start with delack produces 3 packets of burst, so that
- * it is safe "de facto".
+ * it is safe "de facto".  This will be the default - same as
+ * the default reordering threshold - but if reordering increases,
+ * we must be able to allow cwnd to burst at least this much in order
+ * to not pull it back when holes are filled.
  */
 static __inline__ __u32 tcp_max_burst(const struct tcp_sock *tp)
 {
-       return 3;
+       return tp->reordering;
 }
 
 /* Returns end sequence number of the receiver's advertised window */
@@ -955,6 +964,7 @@ static inline void tcp_openreq_init(struct request_sock *req,
        struct inet_request_sock *ireq = inet_rsk(req);
 
        req->rcv_wnd = 0;               /* So that tcp_send_synack() knows! */
+       req->cookie_ts = 0;
        tcp_rsk(req)->rcv_isn = TCP_SKB_CB(skb)->seq;
        req->mss = rx_opt->mss_clamp;
        req->ts_recent = rx_opt->saw_tstamp ? rx_opt->rcv_tsval : 0;
@@ -1242,7 +1252,7 @@ static inline void tcp_insert_write_queue_after(struct sk_buff *skb,
                                                struct sk_buff *buff,
                                                struct sock *sk)
 {
-       __skb_append(skb, buff, &sk->sk_write_queue);
+       __skb_queue_after(&sk->sk_write_queue, skb, buff);
 }
 
 /* Insert skb between prev and next on the write queue of sk.  */
@@ -1320,23 +1330,22 @@ enum tcp_seq_states {
 };
 
 struct tcp_seq_afinfo {
-       struct module           *owner;
        char                    *name;
        sa_family_t             family;
-       int                     (*seq_show) (struct seq_file *m, void *v);
-       struct file_operations  *seq_fops;
+       struct file_operations  seq_fops;
+       struct seq_operations   seq_ops;
 };
 
 struct tcp_iter_state {
+       struct seq_net_private  p;
        sa_family_t             family;
        enum tcp_seq_states     state;
        struct sock             *syn_wait_sk;
        int                     bucket, sbucket, num, uid;
-       struct seq_operations   seq_ops;
 };
 
-extern int tcp_proc_register(struct tcp_seq_afinfo *afinfo);
-extern void tcp_proc_unregister(struct tcp_seq_afinfo *afinfo);
+extern int tcp_proc_register(struct net *net, struct tcp_seq_afinfo *afinfo);
+extern void tcp_proc_unregister(struct net *net, struct tcp_seq_afinfo *afinfo);
 
 extern struct request_sock_ops tcp_request_sock_ops;
 extern struct request_sock_ops tcp6_request_sock_ops;