The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netiso/tp_stat.h

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    1 /*      $NetBSD: tp_stat.h,v 1.8 2003/08/07 16:33:41 agc Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 1991, 1993
    5  *      The Regents of the University of California.  All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. Neither the name of the University nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  *      @(#)tp_stat.h   8.1 (Berkeley) 6/10/93
   32  */
   33 
   34 /***********************************************************
   35                 Copyright IBM Corporation 1987
   36 
   37                       All Rights Reserved
   38 
   39 Permission to use, copy, modify, and distribute this software and its
   40 documentation for any purpose and without fee is hereby granted,
   41 provided that the above copyright notice appear in all copies and that
   42 both that copyright notice and this permission notice appear in
   43 supporting documentation, and that the name of IBM not be
   44 used in advertising or publicity pertaining to distribution of the
   45 software without specific, written prior permission.
   46 
   47 IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
   48 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
   49 IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
   50 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
   51 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
   52 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
   53 SOFTWARE.
   54 
   55 ******************************************************************/
   56 
   57 /*
   58  * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
   59  */
   60 /*
   61  * Here are the data structures in which the global statistics(counters) are
   62  * gathered.
   63  */
   64 
   65 #ifndef _NETISO_TP_STAT_H_
   66 #define _NETISO_TP_STAT_H_
   67 
   68 struct tp_stat {
   69         u_long          ts_param_ignored;
   70         u_long          ts_unused3;
   71         u_long          ts_bad_csum;
   72 
   73         u_long          ts_inv_length;
   74         u_long          ts_inv_pcode;
   75         u_long          ts_inv_dutype;
   76         u_long          ts_negotfailed;
   77         u_long          ts_inv_dref;
   78         u_long          ts_inv_pval;
   79         u_long          ts_inv_sufx;
   80         u_long          ts_inv_aclass;
   81 
   82         u_long          ts_xtd_fmt;
   83         u_long          ts_use_txpd;
   84         u_long          ts_csum_off;
   85         u_long          ts_send_drop;
   86         u_long          ts_recv_drop;
   87 
   88         u_long          ts_xpd_intheway;        /* xpd mark caused data flow
   89                                                  * to stop */
   90         u_long          ts_xpdmark_del; /* xpd markers thrown away */
   91         u_long          ts_dt_ooo;      /* dt tpdus received out of order */
   92         u_long          ts_dt_niw;      /* dt tpdus received & not in window */
   93         u_long          ts_xpd_niw;     /* xpd tpdus received & not in window */
   94         u_long          ts_xpd_dup;
   95         u_long          ts_dt_dup;      /* dt tpdus received & are duplicates */
   96 
   97         u_long          ts_zfcdt;       /* # times f credit went down to 0 */
   98         u_long          ts_lcdt_reduced;        /* # times local cdt reduced
   99                                                  * on an acknowledgement. */
  100 
  101         u_long          ts_pkt_rcvd;    /* from ip */
  102         u_long          ts_tpdu_rcvd;   /* accepted as a TPDU in tp_input */
  103         u_long          ts_tpdu_sent;
  104         u_long          ts_unused2;
  105 
  106         u_long          ts_retrans_cr;
  107         u_long          ts_retrans_cc;
  108         u_long          ts_retrans_dr;
  109         u_long          ts_retrans_dt;
  110         u_long          ts_retrans_xpd;
  111         u_long          ts_conn_gaveup;
  112 
  113         u_long          ts_ER_sent;
  114         u_long          ts_DT_sent;
  115         u_long          ts_XPD_sent;
  116         u_long          ts_AK_sent;
  117         u_long          ts_XAK_sent;
  118         u_long          ts_DR_sent;
  119         u_long          ts_DC_sent;
  120         u_long          ts_CR_sent;
  121         u_long          ts_CC_sent;
  122 
  123         u_long          ts_ER_rcvd;
  124         u_long          ts_DT_rcvd;
  125         u_long          ts_XPD_rcvd;
  126         u_long          ts_AK_rcvd;
  127         u_long          ts_XAK_rcvd;
  128         u_long          ts_DR_rcvd;
  129         u_long          ts_DC_rcvd;
  130         u_long          ts_CR_rcvd;
  131         u_long          ts_CC_rcvd;
  132 
  133         u_long          ts_Eticks;
  134         u_long          ts_Eexpired;
  135         u_long          ts_Eset;
  136         u_long          ts_Ecan_act;
  137         u_long          ts_Cticks;
  138         u_long          ts_Cexpired;
  139         u_long          ts_Cset;
  140         u_long          ts_Ccan_act;
  141         u_long          ts_Ccan_inact;
  142         u_long          ts_Fdelack;
  143         u_long          ts_Fpruned;
  144 
  145         u_long          ts_concat_rcvd;
  146 
  147         u_long          ts_zdebug;      /* zero dref to test timeout on conn
  148                                          * estab tp_input.c */
  149         u_long          ts_ydebug;      /* throw away pseudo-random pkts
  150                                          * tp_input.c */
  151         u_long          ts_unused5;
  152         u_long          ts_unused;      /* kludged concat to test separation
  153                                          * tp_emit.c */
  154         u_long          ts_vdebug;      /* kludge to test input size checking
  155                                          * tp_emit.c */
  156         u_long          ts_unused4;
  157         u_long          ts_ldebug;      /* faked a renegging of credit */
  158 
  159         u_long          ts_mb_small;
  160         u_long          ts_mb_cluster;
  161         u_long          ts_mb_len_distr[17];
  162 
  163         u_long          ts_eot_input;
  164         u_long          ts_eot_user;
  165         u_long          ts_EOT_sent;
  166         u_long          ts_tp0_conn;
  167         u_long          ts_tp4_conn;
  168         u_long          ts_quench;
  169         u_long          ts_rcvdecbit;
  170 
  171 #define NRTT_CATEGORIES 4
  172         /*
  173          * The 4 categories are: 0 --> tp_flags: ~TPF_PEER_ON_SAMENET |
  174          * TPF_NL_PDN 1 --> tp_flags: ~TPF_PEER_ON_SAMENET | ~TPF_NL_PDN 2
  175          * --> tp_flags:  TPF_PEER_ON_SAMENET | ~TPF_NL_PDN 3 --> tp_flags:
  176          * TPF_PEER_ON_SAMENET |  TPF_NL_PDN
  177          */
  178         int             ts_rtt[NRTT_CATEGORIES];
  179         int             ts_rtv[NRTT_CATEGORIES];
  180 
  181         u_long          ts_ackreason[_ACK_NUM_REASONS_];
  182         /*
  183          * ACK_DONT 0 / ACK_STRAT_EACH 0x1 / ACK_STRAT_FULLWIN 0x4 ACK_DUP
  184          * 0x8 / ACK_EOT 0x10  / ACK_REORDER 0x20 ACK_USRRCV ** ACK_FCC **
  185          */
  186 };
  187 
  188 #ifdef _KERNEL
  189 extern struct tp_stat tp_stat;
  190 #define IncStat(x) tp_stat./**/x/**/++
  191 #endif
  192 
  193 #define         TP_PM_MAX                       0xa     /* 10 decimal */
  194 
  195 #ifdef TP_PERF_MEAS
  196 
  197 #define PStat(Tpcb, X) (Tpcb)->tp_p_meas->/**/X /**/
  198 #define IncPStat(Tpcb, X) if((Tpcb)->tp_perf_on) (Tpcb)->tp_p_meas->/**/X/**/++
  199 
  200 /*
  201  * BEWARE OF MACROS like this ^^^ must be sure it's surrounded by {} if it's
  202  * used in an if-else statement.
  203  */
  204 
  205 
  206 /* for perf measurement stuff: maximum window size it can handle */
  207 
  208 struct tp_pmeas {
  209         /*
  210          * the first few are distributions as a fn of window size only keep
  211          * enough space for normal format plus 1 slot for extended format, in
  212          * case any windows larger than 15 are used
  213          */
  214 
  215         /*
  216          * tps_npdusent: for each call to tp_sbsend, we inc the element
  217          * representing the number of pdus sent in this call
  218          */
  219         int             tps_win_lim_by_cdt[TP_PM_MAX + 1];
  220         int             tps_win_lim_by_data[TP_PM_MAX + 1];
  221         /*
  222          * tps_sendtime: Each call to tp_sbsend() is timed.  For Each window
  223          * size, we keep the running average of the time taken by tp_sbsend()
  224          * for each window size.
  225          */
  226         int             tps_sendtime[TP_PM_MAX + 1];
  227         /*
  228          * n_TMsendack: # times ack sent because timer went off
  229          * n_ack_cuz_eot: # times ack sent due to EOTSDU on incoming packet
  230          * n_ack_cuz_dup: # times ack sent for receiving a duplicate pkt.
  231          * n_ack_cuz_fullwin: # times ack sent for receiving the full window.
  232          * n_ack_cuz_doack: # times ack sent for having just reordered data.
  233          */
  234         int             tps_n_TMsendack;
  235         int             tps_n_ack_cuz_eot;
  236         int             tps_n_ack_cuz_fullwin;
  237         int             tps_n_ack_cuz_reorder;
  238         int             tps_n_ack_cuz_dup;
  239         int             tps_n_ack_cuz_strat;
  240         /*
  241          * when we send an ack: how much less than the "expected" window
  242          * did we actually ack.  For example: if we last sent a credit
  243          * of 10, and we're acking now for whatever reason, and have
  244          * only received 6 since our last credit advertisement, we'll
  245          * keep the difference, 4, in this variable.
  246          */
  247         int             tps_ack_early[TP_PM_MAX + 1];
  248         /*
  249          * when we ack, for the # pkts we actually acked w/ this ack,
  250          * how much cdt are we advertising?
  251          * [ size of window acknowledged ] [ cdt we're giving ]
  252          */
  253         int             tps_cdt_acked[TP_PM_MAX + 1][TP_PM_MAX + 1];
  254 
  255         int             tps_AK_sent;
  256         int             tps_XAK_sent;
  257         int             tps_DT_sent;
  258         int             tps_XPD_sent;
  259         int             tps_AK_rcvd;
  260         int             tps_XAK_rcvd;
  261         int             tps_DT_rcvd;
  262         int             tps_XPD_rcvd;
  263 
  264         int             Nb_from_sess;
  265         int             Nb_to_sess;
  266         int             Nb_to_ll;
  267         int             Nb_from_ll;
  268 };
  269 
  270 
  271 #else
  272 
  273 #define PStat(tpcb, x)          0
  274 #define IncPStat(tpcb, x)       /* no-op */
  275 #define tpmeas(a,b,c,d,e,f) 0
  276 
  277 #endif                          /* TP_PERF_MEAS */
  278 
  279 
  280 #define  DOPERF(tpcb)  (tpcb->tp_perf_on && tpcb->tp_p_meas)
  281 
  282 #endif                          /* _NETISO_TP_STAT_H_ */

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