intrctl.c revision 1.3 1 1.3 ryo /* $NetBSD: intrctl.c,v 1.3 2016/09/19 18:46:39 ryo Exp $ */
2 1.1 knakahar
3 1.1 knakahar /*
4 1.1 knakahar * Copyright (c) 2015 Internet Initiative Japan Inc.
5 1.1 knakahar * All rights reserved.
6 1.1 knakahar *
7 1.1 knakahar * Redistribution and use in source and binary forms, with or without
8 1.1 knakahar * modification, are permitted provided that the following conditions
9 1.1 knakahar * are met:
10 1.1 knakahar * 1. Redistributions of source code must retain the above copyright
11 1.1 knakahar * notice, this list of conditions and the following disclaimer.
12 1.1 knakahar * 2. Redistributions in binary form must reproduce the above copyright
13 1.1 knakahar * notice, this list of conditions and the following disclaimer in the
14 1.1 knakahar * documentation and/or other materials provided with the distribution.
15 1.1 knakahar *
16 1.1 knakahar * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 1.1 knakahar * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 1.1 knakahar * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 1.1 knakahar * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 1.1 knakahar * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 1.1 knakahar * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 1.1 knakahar * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 1.1 knakahar * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 1.1 knakahar * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 1.1 knakahar * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 1.1 knakahar * POSSIBILITY OF SUCH DAMAGE.
27 1.1 knakahar */
28 1.1 knakahar
29 1.1 knakahar #include <sys/cdefs.h>
30 1.3 ryo __RCSID("$NetBSD: intrctl.c,v 1.3 2016/09/19 18:46:39 ryo Exp $");
31 1.1 knakahar
32 1.1 knakahar #include <sys/param.h>
33 1.1 knakahar #include <sys/sysctl.h>
34 1.1 knakahar #include <sys/intrio.h>
35 1.1 knakahar #include <sys/types.h>
36 1.1 knakahar
37 1.1 knakahar #include <err.h>
38 1.1 knakahar #include <errno.h>
39 1.1 knakahar #include <fcntl.h>
40 1.1 knakahar #include <limits.h>
41 1.1 knakahar #include <paths.h>
42 1.1 knakahar #include <sched.h>
43 1.1 knakahar #include <stdint.h>
44 1.1 knakahar #include <stdio.h>
45 1.1 knakahar #include <stdlib.h>
46 1.1 knakahar #include <string.h>
47 1.1 knakahar #include <unistd.h>
48 1.1 knakahar
49 1.1 knakahar #include "intrctl_io.h"
50 1.1 knakahar
51 1.1 knakahar __dead static void usage(void);
52 1.1 knakahar
53 1.1 knakahar int verbose;
54 1.1 knakahar
55 1.1 knakahar static void intrctl_list(int, char **);
56 1.1 knakahar static void intrctl_affinity(int, char **);
57 1.1 knakahar static void intrctl_intr(int, char **);
58 1.1 knakahar static void intrctl_nointr(int, char **);
59 1.1 knakahar
60 1.1 knakahar static struct cmdtab {
61 1.1 knakahar const char *label;
62 1.1 knakahar void (*func)(int, char **);
63 1.1 knakahar } const intrctl_cmdtab[] = {
64 1.1 knakahar { "list", intrctl_list },
65 1.1 knakahar { "affinity", intrctl_affinity },
66 1.1 knakahar { "intr", intrctl_intr },
67 1.1 knakahar { "nointr", intrctl_nointr },
68 1.1 knakahar { NULL, NULL },
69 1.1 knakahar };
70 1.1 knakahar
71 1.1 knakahar int
72 1.1 knakahar main(int argc, char **argv)
73 1.1 knakahar {
74 1.1 knakahar const struct cmdtab *ct;
75 1.1 knakahar char *cmdname;
76 1.1 knakahar
77 1.1 knakahar if (argc < 2)
78 1.1 knakahar usage();
79 1.1 knakahar
80 1.1 knakahar cmdname = argv[1];
81 1.1 knakahar argv += 1;
82 1.1 knakahar argc -= 1;
83 1.1 knakahar
84 1.1 knakahar for (ct = intrctl_cmdtab; ct->label != NULL; ct++) {
85 1.1 knakahar if (strcmp(cmdname, ct->label) == 0) {
86 1.1 knakahar break;
87 1.1 knakahar }
88 1.1 knakahar }
89 1.1 knakahar if (ct->label == NULL)
90 1.1 knakahar errx(EXIT_FAILURE, "unknown command ``%s''", cmdname);
91 1.1 knakahar
92 1.1 knakahar (*ct->func)(argc, argv);
93 1.1 knakahar exit(EXIT_SUCCESS);
94 1.1 knakahar /* NOTREACHED */
95 1.1 knakahar }
96 1.1 knakahar
97 1.1 knakahar static void
98 1.1 knakahar usage(void)
99 1.1 knakahar {
100 1.1 knakahar const char *progname = getprogname();
101 1.1 knakahar
102 1.1 knakahar fprintf(stderr, "usage: %s list\n", progname);
103 1.1 knakahar fprintf(stderr, " %s affinity -i interrupt_name -c cpu_index\n", progname);
104 1.1 knakahar fprintf(stderr, " %s intr -c cpu_index\n", progname);
105 1.1 knakahar fprintf(stderr, " %s nointr -c cpu_index\n", progname);
106 1.1 knakahar exit(EXIT_FAILURE);
107 1.1 knakahar /* NOTREACHED */
108 1.1 knakahar }
109 1.1 knakahar
110 1.1 knakahar static int intrctl_io_alloc_retry_count = 4;
111 1.1 knakahar
112 1.1 knakahar static void
113 1.1 knakahar intrctl_list(int argc, char **argv)
114 1.1 knakahar {
115 1.3 ryo char buf[64];
116 1.1 knakahar struct intrio_list_line *illine;
117 1.3 ryo int i, ncpus, *cpucol;
118 1.1 knakahar void *handle;
119 1.2 knakahar size_t intridlen;
120 1.1 knakahar
121 1.1 knakahar handle = intrctl_io_alloc(intrctl_io_alloc_retry_count);
122 1.1 knakahar if (handle == NULL)
123 1.1 knakahar err(EXIT_FAILURE, "intrctl_io_alloc");
124 1.1 knakahar
125 1.2 knakahar /* calc columns */
126 1.2 knakahar ncpus = intrctl_io_ncpus(handle);
127 1.2 knakahar intridlen = strlen("interrupt id");
128 1.3 ryo for (illine = intrctl_io_firstline(handle); illine != NULL;
129 1.3 ryo illine = intrctl_io_nextline(handle, illine)) {
130 1.2 knakahar size_t len = strlen(illine->ill_intrid);
131 1.2 knakahar if (intridlen < len)
132 1.2 knakahar intridlen = len;
133 1.2 knakahar }
134 1.2 knakahar
135 1.3 ryo cpucol = malloc(sizeof(*cpucol) * (size_t)ncpus);
136 1.3 ryo if (cpucol == NULL)
137 1.3 ryo err(EXIT_FAILURE, "malloc");
138 1.3 ryo for (i = 0; i < ncpus; i++) {
139 1.3 ryo snprintf(buf, sizeof(buf), "CPU%u", i);
140 1.3 ryo cpucol[i] = strlen(buf);
141 1.3 ryo }
142 1.3 ryo for (illine = intrctl_io_firstline(handle); illine != NULL;
143 1.3 ryo illine = intrctl_io_nextline(handle, illine)) {
144 1.3 ryo for (i = 0; i < ncpus; i++) {
145 1.3 ryo int len;
146 1.3 ryo snprintf(buf, sizeof(buf), "%" PRIu64,
147 1.3 ryo illine->ill_cpu[i].illc_count);
148 1.3 ryo len = (int)strlen(buf);
149 1.3 ryo if (cpucol[i] < len)
150 1.3 ryo cpucol[i] = len;
151 1.3 ryo }
152 1.3 ryo }
153 1.3 ryo
154 1.1 knakahar /* header */
155 1.3 ryo printf("%-*s ", (int)intridlen, "interrupt id");
156 1.1 knakahar for (i = 0; i < ncpus; i++) {
157 1.2 knakahar snprintf(buf, sizeof(buf), "CPU%u", i);
158 1.3 ryo printf("%*s ", cpucol[i], buf);
159 1.1 knakahar }
160 1.3 ryo printf("device name(s)\n");
161 1.1 knakahar
162 1.1 knakahar /* body */
163 1.3 ryo for (illine = intrctl_io_firstline(handle); illine != NULL;
164 1.3 ryo illine = intrctl_io_nextline(handle, illine)) {
165 1.3 ryo printf("%-*s ", (int)intridlen, illine->ill_intrid);
166 1.1 knakahar for (i = 0; i < ncpus; i++) {
167 1.1 knakahar struct intrio_list_line_cpu *illc = &illine->ill_cpu[i];
168 1.3 ryo printf("%*" PRIu64 "%c ", cpucol[i], illc->illc_count,
169 1.1 knakahar illc->illc_assigned ? '*' : ' ');
170 1.1 knakahar }
171 1.1 knakahar printf("%s\n", illine->ill_xname);
172 1.1 knakahar }
173 1.1 knakahar
174 1.3 ryo free(cpucol);
175 1.1 knakahar intrctl_io_free(handle);
176 1.1 knakahar }
177 1.1 knakahar
178 1.1 knakahar static void
179 1.1 knakahar intrctl_affinity(int argc, char **argv)
180 1.1 knakahar {
181 1.1 knakahar struct intrio_set iset;
182 1.1 knakahar cpuset_t *cpuset;
183 1.1 knakahar unsigned long index;
184 1.1 knakahar int ch, error;
185 1.1 knakahar
186 1.1 knakahar index = ULONG_MAX;
187 1.1 knakahar memset(&iset.intrid, 0, sizeof(iset.intrid));
188 1.1 knakahar
189 1.1 knakahar while ((ch = getopt(argc, argv, "c:i:")) != -1) {
190 1.1 knakahar switch (ch) {
191 1.1 knakahar case 'c':
192 1.1 knakahar index = strtoul(optarg, NULL, 10);
193 1.1 knakahar break;
194 1.1 knakahar case 'i':
195 1.1 knakahar if (strnlen(optarg, ARG_MAX) > INTRIDBUF)
196 1.1 knakahar usage();
197 1.1 knakahar strlcpy(iset.intrid, optarg, INTRIDBUF);
198 1.1 knakahar break;
199 1.1 knakahar default:
200 1.1 knakahar usage();
201 1.1 knakahar }
202 1.1 knakahar }
203 1.1 knakahar
204 1.1 knakahar if (iset.intrid[0] == '\0' || index == ULONG_MAX)
205 1.1 knakahar usage();
206 1.1 knakahar
207 1.1 knakahar if (index >= (u_long)sysconf(_SC_NPROCESSORS_CONF))
208 1.1 knakahar err(EXIT_FAILURE, "invalid cpu index");
209 1.1 knakahar
210 1.1 knakahar cpuset = cpuset_create();
211 1.1 knakahar if (cpuset == NULL)
212 1.1 knakahar err(EXIT_FAILURE, "create_cpuset()");
213 1.1 knakahar
214 1.1 knakahar cpuset_zero(cpuset);
215 1.1 knakahar cpuset_set(index, cpuset);
216 1.1 knakahar iset.cpuset = cpuset;
217 1.1 knakahar iset.cpuset_size = cpuset_size(cpuset);
218 1.1 knakahar error = sysctlbyname("kern.intr.affinity", NULL, NULL, &iset, sizeof(iset));
219 1.1 knakahar cpuset_destroy(cpuset);
220 1.1 knakahar if (error < 0)
221 1.1 knakahar err(EXIT_FAILURE, "sysctl kern.intr.affinity");
222 1.1 knakahar }
223 1.1 knakahar
224 1.1 knakahar static void
225 1.1 knakahar intrctl_intr(int argc, char **argv)
226 1.1 knakahar {
227 1.1 knakahar struct intrio_set iset;
228 1.1 knakahar cpuset_t *cpuset;
229 1.1 knakahar unsigned long index;
230 1.1 knakahar int ch, error;
231 1.1 knakahar
232 1.1 knakahar index = ULONG_MAX;
233 1.1 knakahar
234 1.1 knakahar while ((ch = getopt(argc, argv, "c:")) != -1) {
235 1.1 knakahar switch (ch) {
236 1.1 knakahar case 'c':
237 1.1 knakahar index = strtoul(optarg, NULL, 10);
238 1.1 knakahar break;
239 1.1 knakahar default:
240 1.1 knakahar usage();
241 1.1 knakahar }
242 1.1 knakahar }
243 1.1 knakahar
244 1.1 knakahar if (index == ULONG_MAX)
245 1.1 knakahar usage();
246 1.1 knakahar
247 1.1 knakahar if (index >= (u_long)sysconf(_SC_NPROCESSORS_CONF))
248 1.1 knakahar err(EXIT_FAILURE, "invalid cpu index");
249 1.1 knakahar
250 1.1 knakahar cpuset = cpuset_create();
251 1.1 knakahar if (cpuset == NULL)
252 1.1 knakahar err(EXIT_FAILURE, "create_cpuset()");
253 1.1 knakahar
254 1.1 knakahar cpuset_zero(cpuset);
255 1.1 knakahar cpuset_set(index, cpuset);
256 1.1 knakahar iset.cpuset = cpuset;
257 1.1 knakahar iset.cpuset_size = cpuset_size(cpuset);
258 1.1 knakahar error = sysctlbyname("kern.intr.intr", NULL, NULL, &iset, sizeof(iset));
259 1.1 knakahar cpuset_destroy(cpuset);
260 1.1 knakahar if (error < 0)
261 1.1 knakahar err(EXIT_FAILURE, "sysctl kern.intr.intr");
262 1.1 knakahar }
263 1.1 knakahar
264 1.1 knakahar static void
265 1.1 knakahar intrctl_nointr(int argc, char **argv)
266 1.1 knakahar {
267 1.1 knakahar struct intrio_set iset;
268 1.1 knakahar cpuset_t *cpuset;
269 1.1 knakahar unsigned long index;
270 1.1 knakahar int ch, error;
271 1.1 knakahar
272 1.1 knakahar index = ULONG_MAX;
273 1.1 knakahar
274 1.1 knakahar while ((ch = getopt(argc, argv, "c:")) != -1) {
275 1.1 knakahar switch (ch) {
276 1.1 knakahar case 'c':
277 1.1 knakahar index = strtoul(optarg, NULL, 10);
278 1.1 knakahar break;
279 1.1 knakahar default:
280 1.1 knakahar usage();
281 1.1 knakahar }
282 1.1 knakahar }
283 1.1 knakahar
284 1.1 knakahar if (index == ULONG_MAX)
285 1.1 knakahar usage();
286 1.1 knakahar
287 1.1 knakahar if (index >= (u_long)sysconf(_SC_NPROCESSORS_CONF))
288 1.1 knakahar err(EXIT_FAILURE, "invalid cpu index");
289 1.1 knakahar
290 1.1 knakahar cpuset = cpuset_create();
291 1.1 knakahar if (cpuset == NULL)
292 1.1 knakahar err(EXIT_FAILURE, "create_cpuset()");
293 1.1 knakahar
294 1.1 knakahar cpuset_zero(cpuset);
295 1.1 knakahar cpuset_set(index, cpuset);
296 1.1 knakahar iset.cpuset = cpuset;
297 1.1 knakahar iset.cpuset_size = cpuset_size(cpuset);
298 1.1 knakahar error = sysctlbyname("kern.intr.nointr", NULL, NULL, &iset, sizeof(iset));
299 1.1 knakahar cpuset_destroy(cpuset);
300 1.1 knakahar if (error < 0)
301 1.1 knakahar err(EXIT_FAILURE, "sysctl kern.intr.nointr");
302 1.1 knakahar }
303