usr.sbin/altq/altqstat/qdisc_rio.c

   1 /*      $NetBSD: qdisc_rio.c,v 1.5 2006/10/12 19:59:13 peter Exp $      */
   2 /*      $KAME: qdisc_rio.c,v 1.7 2004/01/22 09:31:24 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_red.h>
  37 #include <altq/altq_rio.h>
  38
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <unistd.h>
  42 #include <string.h>
  43 #include <signal.h>
  44 #include <errno.h>
  45 #include <err.h>
  46
  47 #include "altqstat.h"
  48
  49 static int avg_scale = 4096;    /* default fixed-point scale */
  50
  51 void
  52 rio_stat_loop(int fd, const char *ifname, int count, int interval)
  53 {
  54         struct rio_stats rio_stats;
  55         struct timeval cur_time, last_time;
  56         u_int64_t last_bytes[3];
  57         double sec;
  58         int cnt = count;
  59         sigset_t                omask;
  60
  61         memset(&last_bytes, 0, sizeof last_bytes);      /* XXX gcc */
  62         bzero(&rio_stats, sizeof(rio_stats));
  63         strlcpy(rio_stats.iface.rio_ifname, ifname,
  64                 sizeof(rio_stats.iface.rio_ifname));
  65
  66         gettimeofday(&last_time, NULL);
  67         last_time.tv_sec -= interval;
  68
  69         for (;;) {
  70                 if (ioctl(fd, RIO_GETSTATS, &rio_stats) < 0)
  71                         err(1, "ioctl RIO_GETSTATS");
  72
  73                 gettimeofday(&cur_time, NULL);
  74                 sec = calc_interval(&cur_time, &last_time);
  75
  76                 printf("weight:%d q_limit:%d\n",
  77                        rio_stats.weight, rio_stats.q_limit);
  78
  79                 printf("\t\t\tLOW DP\t\tMEDIUM DP\t\tHIGH DP\n");
  80
  81                 printf("thresh (prob):\t\t[%d,%d](1/%d)\t[%d,%d](1/%d)\t\t[%d,%d](1/%d)\n",
  82                        rio_stats.q_params[0].th_min,
  83                        rio_stats.q_params[0].th_max,
  84                        rio_stats.q_params[0].inv_pmax,
  85                        rio_stats.q_params[1].th_min,
  86                        rio_stats.q_params[1].th_max,
  87                        rio_stats.q_params[1].inv_pmax,
  88                        rio_stats.q_params[2].th_min,
  89                        rio_stats.q_params[2].th_max,
  90                        rio_stats.q_params[2].inv_pmax);
  91                 printf("qlen (avg):\t\t%d (%.2f)\t%d (%.2f)\t\t%d (%.2f)\n",
  92                        rio_stats.q_len[0],
  93                        ((double)rio_stats.q_stats[0].q_avg)/(double)avg_scale,
  94                        rio_stats.q_len[1],
  95                        ((double)rio_stats.q_stats[1].q_avg)/(double)avg_scale,
  96                        rio_stats.q_len[2],
  97                        ((double)rio_stats.q_stats[2].q_avg)/(double)avg_scale);
  98                 printf("xmit (drop) pkts:\t%llu (%llu)\t\t%llu (%llu)\t\t\t%llu (%llu)\n",
  99                        (ull)rio_stats.q_stats[0].xmit_cnt.packets,
 100                        (ull)rio_stats.q_stats[0].drop_cnt.packets,
 101                        (ull)rio_stats.q_stats[1].xmit_cnt.packets,
 102                        (ull)rio_stats.q_stats[1].drop_cnt.packets,
 103                        (ull)rio_stats.q_stats[2].xmit_cnt.packets,
 104                        (ull)rio_stats.q_stats[2].drop_cnt.packets);
 105                 printf("(forced:early):\t\t(%u:%u)\t\t(%u:%u)\t\t\t(%u:%u)\n",
 106                        rio_stats.q_stats[0].drop_forced,
 107                        rio_stats.q_stats[0].drop_unforced,
 108                        rio_stats.q_stats[1].drop_forced,
 109                        rio_stats.q_stats[1].drop_unforced,
 110                        rio_stats.q_stats[2].drop_forced,
 111                        rio_stats.q_stats[2].drop_unforced);
 112                 if (rio_stats.q_stats[0].marked_packets != 0
 113                     || rio_stats.q_stats[1].marked_packets != 0
 114                     || rio_stats.q_stats[2].marked_packets != 0)
 115                         printf("marked:\t\t\t%u\t\t%u\t\t\t%u\n",
 116                                rio_stats.q_stats[0].marked_packets,
 117                                rio_stats.q_stats[1].marked_packets,
 118                                rio_stats.q_stats[2].marked_packets);
 119                 printf("throughput:\t\t%sbps\t%sbps\t\t%sbps\n\n",
 120                        rate2str(calc_rate(rio_stats.q_stats[0].xmit_cnt.bytes,
 121                                           last_bytes[0], sec)),
 122                        rate2str(calc_rate(rio_stats.q_stats[1].xmit_cnt.bytes,
 123                                           last_bytes[1], sec)),
 124                        rate2str(calc_rate(rio_stats.q_stats[2].xmit_cnt.bytes,
 125                                           last_bytes[2], sec)));
 126
 127                 last_bytes[0] = rio_stats.q_stats[0].xmit_cnt.bytes;
 128                 last_bytes[1] = rio_stats.q_stats[1].xmit_cnt.bytes;
 129                 last_bytes[2] = rio_stats.q_stats[2].xmit_cnt.bytes;
 130                 last_time = cur_time;
 131
 132                 if (count != 0 && --cnt == 0)
 133                         break;
 134
 135                 /* wait for alarm signal */
 136                 if (sigprocmask(SIG_BLOCK, NULL, &omask) == 0)
 137                         sigsuspend(&omask);
 138         }
 139 }
 140
 141 int
 142 print_riostats(struct redstats *rp)
 143 {
 144         int dp;
 145
 146         for (dp = 0; dp < RIO_NDROPPREC; dp++)
 147                 printf("     RIO[%d] q_avg:%.2f xmit:%llu (forced: %u early:%u marked:%u)\n",
 148                        dp,
 149                        ((double)rp[dp].q_avg)/(double)avg_scale,
 150                        (ull)rp[dp].xmit_cnt.packets,
 151                        rp[dp].drop_forced,
 152                        rp[dp].drop_unforced,
 153                        rp[dp].marked_packets);
 154         return 0;
 155 }