1 /* $NetBSD: qdisc_cbq.c,v 1.11 2021/07/21 06:48:28 ozaki-r 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
cbq_stat_loop(int fd,const char * ifname,int count,int interval)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->ps_per_byte
104 * 1000*1000*1000*1000;
105
106 printf("\tpriority: %d depth: %d",
107 sp->priority, sp->depth);
108 printf(" offtime: %"PRIi64" [ns] wrr_allot: %d bytes\n",
109 sp->offtime, sp->wrr_allot);
110 printf("\tpsPerByte: %"PRIu64, sp->ps_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 #if 0
137 printf("\tAvgIdle: %d [us],\t(maxidle: %d minidle: %d [us])\n",
138 sp->avgidle >> RM_FILTER_GAIN,
139 sp->maxidle >> RM_FILTER_GAIN,
140 sp->minidle / RM_POWER);
141 #else
142 printf("\tAvgIdle: %"PRIi64" [ns],\t(maxidle: %"PRIi64" minidle: %"PRIi64" [ns])\n",
143 sp->avgidle, sp->maxidle, sp->minidle);
144 #endif
145 }
146
147 /* swap the buffer pointers */
148 tmp = last;
149 last = new;
150 new = tmp;
151
152 last_time = cur_time;
153
154 if (count != 0 && --cnt == 0)
155 break;
156
157 /* wait for alarm signal */
158 if (sigprocmask(SIG_BLOCK, NULL, &omask) == 0)
159 sigsuspend(&omask);
160 }
161 }
162