1 /* $NetBSD: qdisc_red.c,v 1.3 2001/08/16 07:48:12 itojun Exp $ */ 2 /* $KAME: qdisc_red.c,v 1.3 2001/08/15 12:51:59 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 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <unistd.h> 41 #include <string.h> 42 #include <math.h> 43 #include <errno.h> 44 #include <err.h> 45 46 #include "altqstat.h" 47 48 static int avg_scale = 4096; /* default fixed-point scale */ 49 50 void 51 red_stat_loop(int fd, const char *ifname, int count, int interval) 52 { 53 struct red_stats red_stats; 54 struct timeval cur_time, last_time; 55 u_int64_t last_bytes; 56 double sec; 57 int cnt = count; 58 59 strlcpy(red_stats.iface.red_ifname, ifname, 60 sizeof(red_stats.iface.red_ifname)); 61 62 gettimeofday(&last_time, NULL); 63 last_time.tv_sec -= interval; 64 last_bytes = 0; 65 66 while (count == 0 || cnt-- > 0) { 67 68 if (ioctl(fd, RED_GETSTATS, &red_stats) < 0) 69 err(1, "ioctl RED_GETSTATS"); 70 71 gettimeofday(&cur_time, NULL); 72 sec = calc_interval(&cur_time, &last_time); 73 74 printf(" weight:%d inv_pmax:%d qthresh:(%d,%d)\n", 75 red_stats.weight, red_stats.inv_pmax, 76 red_stats.th_min, red_stats.th_max); 77 printf(" q_len:%d (avg: %.2f), q_limit:%d\n", 78 red_stats.q_len, 79 ((double)red_stats.q_avg)/(double)avg_scale, 80 red_stats.q_limit); 81 printf(" xmit:%llu pkts, drop:%llu pkts (forced: %u, early: %u)\n", 82 (ull)red_stats.xmit_cnt.packets, 83 (ull)red_stats.drop_cnt.packets, 84 red_stats.drop_forced, red_stats.drop_unforced); 85 if (red_stats.marked_packets != 0) 86 printf(" marked: %u\n", red_stats.marked_packets); 87 printf(" throughput: %sbps\n", 88 rate2str(calc_rate(red_stats.xmit_cnt.bytes, 89 last_bytes, sec))); 90 if (red_stats.fv_alloc > 0) { 91 printf(" flowvalve: alloc:%u flows:%u\n", 92 red_stats.fv_alloc, red_stats.fv_flows); 93 printf(" predrop:%u pass:%u escape:%u\n", 94 red_stats.fv_predrop, red_stats.fv_pass, 95 red_stats.fv_escape); 96 } 97 printf("\n"); 98 99 last_bytes = red_stats.xmit_cnt.bytes; 100 last_time = cur_time; 101 sleep(interval); 102 } 103 } 104 105 int 106 print_redstats(struct redstats *rp) 107 { 108 printf(" RED q_avg:%.2f xmit:%llu (forced:%u early:%u marked:%u)\n", 109 ((double)rp->q_avg)/(double)avg_scale, 110 (ull)rp->xmit_cnt.packets, 111 rp->drop_forced, 112 rp->drop_unforced, 113 rp->marked_packets); 114 return 0; 115 } 116