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