usr.sbin/altq/altqstat/qdisc_cbq.c

   1 /*      $NetBSD: qdisc_cbq.c,v 1.6 2006/10/12 19:59:13 peter Exp $      */
   2 /*      $KAME: qdisc_cbq.c,v 1.7 2003/09/17 14:27:37 kjc Exp $  */
   3 /*
   4  * Copyright (C) 1999-2000
   5  *      Sony Computer Science Laboratories, Inc.  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  *
  16  * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/param.h>
  30 #include <sys/ioctl.h>
  31 #include <sys/time.h>
  32 #include <sys/socket.h>
  33 #include <net/if.h>
  34 #include <netinet/in.h>
  35 #include <altq/altq.h>
  36 #include <altq/altq_cbq.h>
  37
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <unistd.h>
  41 #include <string.h>
  42 #include <signal.h>
  43 #include <math.h>
  44 #include <errno.h>
  45 #include <err.h>
  46
  47 #include "quip_client.h"
  48 #include "altqstat.h"
  49
  50 #define NCLASSES        64
  51
  52 #ifndef RM_FILTER_GAIN
  53 #define RM_FILTER_GAIN  5       /* log2 of gain, e.g., 5 => 31/32 */
  54 #endif
  55 #ifndef RM_POWER
  56 #define RM_POWER        (1 << RM_FILTER_GAIN)
  57 #endif
  58
  59 void
  60 cbq_stat_loop(int fd, const char *ifname, int count, int interval)
  61 {
  62         class_stats_t stats1[NCLASSES], stats2[NCLASSES];
  63         char clnames[NCLASSES][128];
  64         u_long clhandles[NCLASSES];
  65         struct cbq_getstats     get_stats;
  66         class_stats_t           *sp, *lp, *new, *last, *tmp;
  67         struct timeval          cur_time, last_time;
  68         int                     i;
  69         double                  flow_bps, sec;
  70         int                     cnt = count;
  71         sigset_t                omask;
  72
  73         strlcpy(get_stats.iface.cbq_ifacename, ifname,
  74                 sizeof(get_stats.iface.cbq_ifacename));
  75         new = &stats1[0];
  76         last = &stats2[0];
  77
  78         for (i = 0; i < NCLASSES; i++)
  79             clhandles[i] = NULL_CLASS_HANDLE;
  80
  81         for (;;) {
  82                 get_stats.nclasses = NCLASSES;
  83                 get_stats.stats = new;
  84                 if (ioctl(fd, CBQ_GETSTATS, &get_stats) < 0)
  85                         err(1, "ioctl CBQ_GETSTATS");
  86
  87                 gettimeofday(&cur_time, NULL);
  88                 sec = calc_interval(&cur_time, &last_time);
  89
  90                 for (i=0; i<get_stats.nclasses; i++) {
  91                         sp = &new[i];
  92                         lp = &last[i];
  93
  94                         if (sp->handle != clhandles[i]) {
  95                                 quip_chandle2name(ifname, sp->handle,
  96                                     clnames[i], sizeof(clnames[0]));
  97                                 clhandles[i] = sp->handle;
  98                         }
  99
 100                         printf("Class %d on Interface %s: %s\n",
 101                             sp->handle, ifname, clnames[i]);
 102
 103                         flow_bps = 8.0 / (double)sp->ns_per_byte
 104                             * 1000*1000*1000;
 105
 106                         printf("\tpriority: %d depth: %d",
 107                                sp->priority, sp->depth);
 108                         printf(" offtime: %d [us] wrr_allot: %d bytes\n",
 109                                sp->offtime, sp->wrr_allot);
 110                         printf("\tnsPerByte: %d", sp->ns_per_byte);
 111                         printf("\t(%sbps)", rate2str(flow_bps));
 112                         if (lp->handle != NULL_CLASS_HANDLE) {
 113                                 printf(",\tMeasured: %s [bps]\n",
 114                                        rate2str(calc_rate(sp->xmit_cnt.bytes,
 115                                                 lp->xmit_cnt.bytes, sec)));
 116                         } else {
 117                                 printf("\n");
 118                         }
 119                         printf("\tpkts: %llu,\tbytes: %llu\n",
 120                                (ull)sp->xmit_cnt.packets,
 121                                (ull)sp->xmit_cnt.bytes);
 122                         printf("\tovers: %u,\toveractions: %u\n",
 123                                sp->over, sp->overactions);
 124                         printf("\tborrows: %u,\tdelays: %u\n",
 125                                sp->borrows, sp->delays);
 126                         printf("\tdrops: %llu,\tdrop_bytes: %llu\n",
 127                                (ull)sp->drop_cnt.packets,
 128                                (ull)sp->drop_cnt.bytes);
 129                         if (sp->qtype == Q_RED)
 130                                 print_redstats(sp->red);
 131                         else if (sp->qtype == Q_RIO)
 132                                 print_riostats(sp->red);
 133
 134                         printf("\tQCount: %d,\t(qmax: %d)\n",
 135                                sp->qcnt, sp->qmax);
 136                         printf("\tAvgIdle: %d [us],\t(maxidle: %d minidle: %d [us])\n",
 137                                sp->avgidle >> RM_FILTER_GAIN,
 138                                sp->maxidle >> RM_FILTER_GAIN,
 139                                sp->minidle / RM_POWER);
 140                 }
 141
 142                 /* swap the buffer pointers */
 143                 tmp = last;
 144                 last = new;
 145                 new = tmp;
 146
 147                 last_time = cur_time;
 148
 149                 if (count != 0 && --cnt == 0)
 150                         break;
 151
 152                 /* wait for alarm signal */
 153                 if (sigprocmask(SIG_BLOCK, NULL, &omask) == 0)
 154                         sigsuspend(&omask);
 155         }
 156 }