1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #pragma ident "%Z%%M% %I% %E% SMI"
27
28 /*
29 * Display synchronous serial line statistics
30 */
31
32 #include <sys/types.h>
33 #include <ctype.h>
34 #include <unistd.h>
35 #include <sys/ioctl.h>
36 #include <stdlib.h>
37 #include <stdio.h>
38 #include <string.h>
39 #include <sys/stream.h>
40 #include <sys/stropts.h>
41 #include <fcntl.h>
42 #include <sys/ser_sync.h>
43 #include <libdlpi.h>
44
45 static struct scc_mode sm;
46 static struct sl_stats st;
47
48 static void usage(void);
49 static void sample(int count, int period);
50
51 static char sername[DLPI_LINKNAME_MAX];
52 static int fd;
53
54 int
main(int argc,char ** argv)55 main(int argc, char **argv)
56 {
57 char *cp;
58 char serdevice[DLPI_LINKNAME_MAX];
59 int do_clear = 0;
60 int period = 0;
61 int isize, osize;
62 int count;
63 int retval;
64 struct strioctl sioc;
65 uint_t ppa;
66 dlpi_handle_t dh;
67
68 if (argc == 1) {
69 usage();
70 exit(1);
71 }
72 argc--; /* skip the command name */
73 argv++;
74
75 /*
76 * The following loop processes command line arguments.
77 * If the argument begins with a '-', it is trated as an option.
78 * The only option currently implemented is "-c" (clears statistics).
79 * If the argument begins with a numeral, it is treated as an interval.
80 * Intervals must be positive integers greater than zero.
81 * Any argument that survives this is treated as a device name to be
82 * found under /dev.
83 */
84 while (argc > 0) {
85 if (argv[0][0] == '-') {
86 if (argc == 1) {
87 usage();
88 exit(1);
89 }
90 if (argv[0][1] != 'c') {
91 usage();
92 exit(1);
93 }
94 do_clear = 1;
95 } else if ((argv[0][0] >= '0') && (argv[0][0] <= '9')) {
96 period = atoi(*argv);
97 if (period == 0) {
98 (void) fprintf(stderr,
99 "syncstat: bad interval: %s\n", *argv);
100 exit(1);
101 }
102 } else {
103 if (snprintf(sername, sizeof (sername), "%s",
104 *argv) >= sizeof (sername)) {
105 (void) fprintf(stderr, "syncstat: invalid "
106 "device name (too long) %s\n", *argv);
107 exit(1);
108 }
109 }
110 argc--;
111 argv++;
112 }
113
114 for (cp = sername; (*cp) && (!isdigit(*cp)); cp++) {}
115 if (*cp == '\0') { /* hit the end without finding a number */
116 (void) fprintf(stderr,
117 "syncstat: %s missing minor device number\n", sername);
118 exit(1);
119 }
120
121 if ((retval = dlpi_open(sername, &dh, DLPI_SERIAL)) != DLPI_SUCCESS) {
122 (void) fprintf(stderr, "syncstat: dlpi_open %s: %s\n", sername,
123 dlpi_strerror(retval));
124 exit(1);
125 }
126
127 (void) dlpi_parselink(sername, serdevice, &ppa);
128 (void) printf("syncstat: control device: %s, ppa=%u\n", serdevice, ppa);
129
130 fd = dlpi_fd(dh);
131 sioc.ic_cmd = S_IOCGETMODE;
132 sioc.ic_timout = -1;
133 sioc.ic_len = sizeof (struct scc_mode);
134 sioc.ic_dp = (char *)&sm;
135 if (ioctl(fd, I_STR, &sioc) < 0) {
136 perror("S_IOCGETMODE");
137 (void) fprintf(stderr,
138 "syncstat: can't get sync mode info for %s\n", sername);
139 exit(1);
140 }
141 if (do_clear) {
142 sioc.ic_cmd = S_IOCCLRSTATS;
143 sioc.ic_timout = -1;
144 sioc.ic_len = sizeof (struct sl_stats);
145 sioc.ic_dp = (char *)&st;
146 if (ioctl(fd, I_STR, &sioc) < 0) {
147 perror("S_IOCCLRSTATS");
148 (void) fprintf(stderr,
149 "syncstat: can't clear stats for %s\n", sername);
150 exit(1);
151 }
152 }
153
154 sioc.ic_cmd = S_IOCGETSTATS;
155 sioc.ic_timout = -1;
156 sioc.ic_len = sizeof (struct sl_stats);
157 sioc.ic_dp = (char *)&st;
158 if (ioctl(fd, I_STR, &sioc) < 0) {
159 perror("S_IOCGETSTATS");
160 (void) fprintf(stderr, "syncstat: can't get stats for %s\n",
161 sername);
162 exit(1);
163 }
164 if (period) {
165 if (sm.sm_baudrate == 0) {
166 (void) fprintf(stderr, "syncstat: baud rate not set\n");
167 exit(1);
168 }
169 for (count = 0; ; count++) {
170 (void) fflush(stdout);
171 (void) sleep(period);
172 sample(count, period);
173 }
174 }
175 isize = osize = 0;
176 if (st.opack)
177 osize = st.ochar / st.opack;
178 if (st.ipack)
179 isize = st.ichar / st.ipack;
180 (void) printf(" speed ipkts opkts undrun ovrrun abort "
181 "crc isize osize\n");
182 (void) printf(" %7d %7d %7d %7d %7d %7d %7d %7d %7d\n", sm.sm_baudrate,
183 st.ipack, st.opack, st.underrun, st.overrun, st.abort, st.crc,
184 isize, osize);
185 return (0);
186 }
187
188 static void
sample(int count,int period)189 sample(int count, int period)
190 {
191 struct sl_stats nst;
192 struct strioctl sioc;
193 int iutil, outil;
194
195 sioc.ic_cmd = S_IOCGETSTATS;
196 sioc.ic_timout = -1;
197 sioc.ic_len = sizeof (struct sl_stats);
198 sioc.ic_dp = (char *)&nst;
199 if (ioctl(fd, I_STR, &sioc) < 0) {
200 perror("S_IOCGETSTATS");
201 (void) fprintf(stderr, "syncstat: can't get stats for %s\n",
202 sername);
203 exit(1);
204 }
205
206 st.ipack = nst.ipack - st.ipack;
207 st.opack = nst.opack - st.opack;
208 st.ichar = nst.ichar - st.ichar;
209 st.ochar = nst.ochar - st.ochar;
210 st.crc = nst.crc - st.crc;
211 st.overrun = nst.overrun - st.overrun;
212 st.underrun = nst.underrun - st.underrun;
213 st.abort = nst.abort - st.abort;
214 iutil = 8 * st.ichar / period;
215 iutil = 100 * iutil / sm.sm_baudrate;
216 outil = 8 * st.ochar / period;
217 outil = 100 * outil / sm.sm_baudrate;
218 if ((count % 20) == 0)
219 (void) printf(" ipkts opkts undrun ovrrun abort "
220 "crc iutil outil\n");
221 (void) printf(" %7d %7d %7d %7d %7d %7d %6d%% %6d%%\n", st.ipack,
222 st.opack, st.underrun, st.overrun, st.abort, st.crc, iutil, outil);
223
224 st = nst;
225 }
226
227 static void
usage()228 usage()
229 {
230 (void) fprintf(stderr, "Usage: syncstat [-c] device [period]\n");
231 }
232