add flag to avoid delay of short packets (Nagle algorithm)

SCCS-vsn: sys/netinet/tcp_var.h 6.6

diff --git a/usr/src/sys/netinet/tcp_var.h b/usr/src/sys/netinet/tcp_var.h
index 5a2a725..df54206 100644 (file)
--- a/usr/src/sys/netinet/tcp_var.h
+++ b/usr/src/sys/netinet/tcp_var.h
@@ -3,7 +3,7 @@
  * All rights reserved.  The Berkeley software License Agreement
  * specifies the terms and conditions for redistribution.
  *
  * All rights reserved.  The Berkeley software License Agreement
  * specifies the terms and conditions for redistribution.
  *

- *     @(#)tcp_var.h   6.5 (Berkeley) %G%
+ *     @(#)tcp_var.h   6.6 (Berkeley) %G%

  */
 
 /*
  */
 
 /*


@@ -23,10 +23,10 @@ struct tcpcb {
        short   t_maxseg;               /* maximum segment size */
        char    t_force;                /* 1 if forcing out a byte */
        u_char  t_flags;
        short   t_maxseg;               /* maximum segment size */
        char    t_force;                /* 1 if forcing out a byte */
        u_char  t_flags;

-#define        TF_ACKNOW       0x01                    /* ack peer immediately */
-#define        TF_DELACK       0x02                    /* ack, but try to delay it */
-#define        TF_DONTKEEP     0x04                    /* don't use keep-alives */
-#define        TF_NOOPT        0x08                    /* don't use tcp options */
+#define        TF_ACKNOW       0x01            /* ack peer immediately */
+#define        TF_DELACK       0x02            /* ack, but try to delay it */
+#define        TF_NODELAY      0x04            /* don't delay packets to coalesce */
+#define        TF_NOOPT        0x08            /* don't use tcp options */

        struct  tcpiphdr *t_template;   /* skeletal packet for transmit */
        struct  inpcb *t_inpcb;         /* back pointer to internet pcb */
 /*
        struct  tcpiphdr *t_template;   /* skeletal packet for transmit */
        struct  inpcb *t_inpcb;         /* back pointer to internet pcb */
 /*


@@ -42,7 +42,7 @@ struct tcpcb {
        tcp_seq iss;                    /* initial send sequence number */
        u_short snd_wnd;                /* send window */
 /* receive sequence variables */
        tcp_seq iss;                    /* initial send sequence number */
        u_short snd_wnd;                /* send window */
 /* receive sequence variables */

-       short   rcv_wnd;                /* receive window */
+       u_short rcv_wnd;                /* receive window */

        tcp_seq rcv_nxt;                /* receive next */
        tcp_seq rcv_up;                 /* receive urgent pointer */
        tcp_seq irs;                    /* initial receive sequence number */
        tcp_seq rcv_nxt;                /* receive next */
        tcp_seq rcv_up;                 /* receive urgent pointer */
        tcp_seq irs;                    /* initial receive sequence number */