enable floppy module generation for boot cd

[linux-2.6.git] / include / linux / tcp.h

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index b651199..9ed5fac 100644 (file)
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -128,6 +128,10 @@ enum {
 #define TCP_INFO               11      /* Information about this connection. */
 #define TCP_QUICKACK           12      /* Block/reenable quick acks */
 
+#ifdef CONFIG_ACCEPT_QUEUES
+#define TCP_ACCEPTQ_SHARE      13      /* Set accept queue share */
+#endif
+
 #define TCPI_OPT_TIMESTAMPS    1
 #define TCPI_OPT_SACK          2
 #define TCPI_OPT_WSCALE                4
@@ -183,8 +187,23 @@ struct tcp_info
        __u32   tcpi_snd_cwnd;
        __u32   tcpi_advmss;
        __u32   tcpi_reordering;
+
+       __u32   tcpi_rcv_rtt;
+       __u32   tcpi_rcv_space;
 };
 
+#ifdef CONFIG_ACCEPT_QUEUES
+
+#define NUM_ACCEPT_QUEUES      8       /* Must be power of 2 */
+
+struct tcp_acceptq_info {
+       unsigned char acceptq_shares;
+       unsigned long acceptq_wait_time;
+       unsigned int acceptq_qcount;
+       unsigned int acceptq_count;
+};
+#endif
+
 #ifdef __KERNEL__
 
 #include <linux/config.h>
@@ -259,8 +278,8 @@ struct tcp_opt {
        __u32   frto_highmark;  /* snd_nxt when RTO occurred */
 
        __u8    unused_pad;
-       __u8    queue_shrunk;   /* Write queue has been shrunk recently.*/
        __u8    defer_accept;   /* User waits for some data after accept() */
+       /* one byte hole, try to pack */
 
 /* RTT measurement */
        __u8    backoff;        /* backoff                              */
@@ -294,7 +313,6 @@ struct tcp_opt {
        struct sk_buff_head     out_of_order_queue; /* Out of order segments go here */
 
        struct tcp_func         *af_specific;   /* Operations which are AF_INET{4,6} specific   */
-       struct sk_buff          *send_head;     /* Front of stuff to transmit                   */
 
        __u32   rcv_wnd;        /* Current receiver window              */
        __u32   rcv_wup;        /* rcv_nxt on last window update sent   */
@@ -351,11 +369,11 @@ struct tcp_opt {
        __u8    urg_mode;       /* In urgent mode               */
        __u32   snd_up;         /* Urgent pointer               */
 
-       /* The syn_wait_lock is necessary only to avoid tcp_get_info having
+       /* The syn_wait_lock is necessary only to avoid proc interface having
         * to grab the main lock sock while browsing the listening hash
         * (otherwise it's deadlock prone).
-        * This lock is acquired in read mode only from tcp_get_info() and
-        * it's acquired in write mode _only_ from code that is actively
+        * This lock is acquired in read mode only from listening_get_next()
+        * and it's acquired in write mode _only_ from code that is actively
         * changing the syn_wait_queue. All readers that are holding
         * the master sock lock don't need to grab this lock in read mode
         * too as the syn_wait_queue writes are always protected from
@@ -366,16 +384,29 @@ struct tcp_opt {
 
        /* FIFO of established children */
        struct open_request     *accept_queue;
+#ifndef CONFIG_ACCEPT_QUEUES
        struct open_request     *accept_queue_tail;
-
-       int                     write_pending;  /* A write to socket waits to start. */
-
+#endif
        unsigned int            keepalive_time;   /* time before keep alive takes place */
        unsigned int            keepalive_intvl;  /* time interval between keep alive probes */
        int                     linger2;
 
        unsigned long last_synq_overflow; 
 
+/* Receiver side RTT estimation */
+       struct {
+               __u32   rtt;
+               __u32   seq;
+               __u32   time;
+       } rcv_rtt_est;
+
+/* Receiver queue space */
+       struct {
+               int     space;
+               __u32   seq;
+               __u32   time;
+       } rcvq_space;
+
 /* TCP Westwood structure */
         struct {
                 __u32    bw_ns_est;        /* first bandwidth estimation..not too smoothed 8) */
@@ -406,7 +437,23 @@ struct tcp_opt {
                __u32   cnt;            /* increase cwnd by 1 after this number of ACKs */
                __u32   last_max_cwnd;  /* last maximium snd_cwnd */
                __u32   last_cwnd;      /* the last snd_cwnd */
+               __u32   last_stamp;     /* time when updated last_cwnd */
        } bictcp;
+
+#ifdef CONFIG_ACCEPT_QUEUES
+       /* move to listen opt... */
+       char            class_index;
+       struct {
+               struct open_request     *aq_head;
+               struct open_request     *aq_tail;
+               unsigned int             aq_cnt;
+               unsigned int             aq_ratio;
+               unsigned int             aq_count;
+               unsigned int             aq_qcount;
+               unsigned int             aq_backlog;
+               unsigned int             aq_wait_time;
+       } acceptq[NUM_ACCEPT_QUEUES];
+#endif
 };
 
 /* WARNING: don't change the layout of the members in tcp_sock! */