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1 | /* Mode: C; |
2 | * mii-diag.c: Examine and set the MII registers of a network interfaces. | |
3 | ||
4 | Usage: mii-diag [-vw] interface. | |
5 | ||
6 | This program reads and writes the Media Independent Interface (MII) | |
7 | management registers on network transceivers. The registers control | |
8 | and report network link settings and errors. Examples are link speed, | |
9 | duplex, capabilities advertised to the link partner, status LED | |
10 | indications and link error counters. | |
11 | ||
12 | Notes: | |
13 | The compile-command is at the end of this source file. | |
14 | This program works with drivers that implement MII ioctl() calls. | |
15 | ||
16 | Written/copyright 1997-2003 by Donald Becker <becker@scyld.com> | |
17 | ||
18 | This program is free software; you can redistribute it | |
19 | and/or modify it under the terms of the GNU General Public | |
20 | License as published by the Free Software Foundation. | |
21 | ||
22 | The author may be reached as becker@scyld.com, or C/O | |
23 | Scyld Computing Corporation | |
24 | 914 Bay Ridge Road, Suite 220 | |
25 | Annapolis MD 21403 | |
26 | ||
27 | References | |
28 | http://scyld.com/expert/mii-status.html | |
29 | http://scyld.com/expert/NWay.html | |
30 | http://www.national.com/pf/DP/DP83840.html | |
31 | */ | |
32 | ||
33 | static char version[] = | |
34 | "mii-diag.c:v2.11 3/21/2005 Donald Becker (becker@scyld.com)\n" | |
35 | " http://www.scyld.com/diag/index.html\n"; | |
36 | ||
37 | static const char usage_msg[] = | |
38 | "Usage: %s [--help] [-aDfrRvVw] [-AF <speed+duplex>] [--watch] <interface>.\n"; | |
39 | static const char long_usage_msg[] = | |
40 | "Usage: %s [-aDfrRvVw] [-AF <speed+duplex>] [--watch] <interface>.\n\ | |
41 | \n\ | |
42 | This program configures and monitors the transceiver management registers\n\ | |
43 | for network interfaces. It uses the Media Independent Interface (MII)\n\ | |
44 | standard with additional Linux-specific controls to communicate with the\n\ | |
45 | underlying device driver. The MII registers control and report network\n\ | |
46 | link settings and errors. Examples are link speed, duplex, capabilities\n\ | |
47 | advertised to the link partner, status LED indications and link error\n\ | |
48 | counters.\n\ | |
49 | \n\ | |
50 | The common usage is\n\ | |
51 | mii-diag eth0\n\ | |
52 | \n\ | |
53 | The default interface is \"eth0\".\n\ | |
54 | Frequently used options are\n\ | |
55 | -A --advertise <speed|setting>\n\ | |
56 | -F --fixed-speed <speed>\n\ | |
57 | Speed is one of: 100baseT4, 100baseTx, 100baseTx-FD, 100baseTx-HD,\n\ | |
58 | 10baseT, 10baseT-FD, 10baseT-HD\n\ | |
59 | -s --status Return exit status 2 if there is no link beat.\n\ | |
60 | \n\ | |
61 | Less frequently used options are\n\ | |
62 | -a --all-interfaces Show the status all interfaces\n\ | |
63 | (Not recommended with options that change settings.)\n\ | |
64 | -D --debug\n\ | |
65 | -g --read-parameters Get driver-specific parameters.\n\ | |
66 | -G --set-parameters PARMS Set driver-specific parameters.\n\ | |
67 | Parameters are comma separated, missing parameters retain\n\ | |
68 | their previous values.\n\ | |
69 | -M --msg-level LEVEL Set the driver message bit map.\n\ | |
70 | -p --phy ADDR Set the PHY (MII address) to report.\n\ | |
71 | -r --restart Restart the link autonegotiation.\n\ | |
72 | -R --reset Reset the transceiver.\n\ | |
73 | -v --verbose Report each action taken.\n\ | |
74 | -V --version Emit version information.\n\ | |
75 | -w --watch Continuously monitor the transceiver and report changes.\n\ | |
76 | \n\ | |
77 | This command returns success (zero) if the interface information can be\n\ | |
78 | read. If the --status option is passed, a zero return means that the\n\ | |
79 | interface has link beat.\n\ | |
80 | "; | |
81 | ||
82 | #include <unistd.h> | |
83 | #include <stdlib.h> | |
84 | #include <stdio.h> | |
85 | #include <ctype.h> | |
86 | #include <string.h> | |
87 | #include <errno.h> | |
88 | #include <fcntl.h> | |
89 | #include <getopt.h> | |
90 | #include <sys/types.h> | |
91 | #include <sys/socket.h> | |
92 | #include <sys/ioctl.h> | |
93 | #include <net/if.h> | |
94 | #ifdef use_linux_libc5 | |
95 | #include <linux/if_arp.h> | |
96 | #include <linux/if_ether.h> | |
97 | #endif | |
98 | ||
99 | typedef u_int32_t u32; | |
100 | typedef u_int16_t u16; | |
101 | typedef u_int8_t u8; | |
102 | ||
103 | #if defined(SIOCGPARAMS) && SIOCGPARAMS != SIOCDEVPRIVATE+3 | |
104 | #error Changed definition for SIOCGPARAMS | |
105 | #else | |
106 | #define SIOCGPARAMS (SIOCDEVPRIVATE+3) /* Read operational parameters. */ | |
107 | #define SIOCSPARAMS (SIOCDEVPRIVATE+4) /* Set operational parameters. */ | |
108 | #endif | |
109 | ||
110 | const char shortopts[] = "aA:C:DfF:gG:hmM:p:rRsvVw?"; | |
111 | struct option longopts[] = { | |
112 | /* { name has_arg *flag val } */ | |
113 | {"all-interfaces", 0, 0, 'a'}, /* Show all interfaces. */ | |
114 | {"advertise", 1, 0, 'A'}, /* Change the capabilities advertised. */ | |
115 | {"BMCR", 1, 0, 'C'}, /* Set the control register. */ | |
116 | {"debug", 0, 0, 'D'}, /* Increase the debug level. */ | |
117 | {"force", 0, 0, 'f'}, /* Force the operation. */ | |
118 | {"fixed-speed", 1, 0, 'F'}, /* Fixed speed name. */ | |
119 | {"read-parameters", 0, 0, 'g'}, /* Show general settings values. */ | |
120 | {"set-parameters", 1, 0, 'G'}, /* Write general settings values. */ | |
121 | {"help", 0, 0, 'h'}, /* Print a long usage message. */ | |
122 | {"monitor", 0, 0, 'm'}, /* Monitor status register. */ | |
123 | {"msg-level", 1, 0, 'M'}, /* Set the driver message level. */ | |
124 | {"phy", 1, 0, 'p'}, /* Set the PHY (MII address) to report. */ | |
125 | {"restart", 0, 0, 'r'}, /* Restart the link negotiation */ | |
126 | {"reset", 0, 0, 'R'}, /* Reset the transceiver. */ | |
127 | {"status", 0, 0, 's'}, /* Non-zero exit status w/ no link beat. */ | |
128 | {"verbose", 0, 0, 'v'}, /* Report each action taken. */ | |
129 | {"version", 0, 0, 'V'}, /* Emit version information. */ | |
130 | {"watch", 0, 0, 'w'}, /* Constantly monitor the port. */ | |
131 | {"error", 0, 0, '?'}, /* Return the error message. */ | |
132 | { 0, 0, 0, 0 } | |
133 | }; | |
134 | ||
135 | /* Usually in libmii.c, but trivial substitions are below. */ | |
136 | extern int show_mii_details(long ioaddr, int phy_id); | |
137 | extern void monitor_mii(long ioaddr, int phy_id); | |
138 | int show_mii_details(long ioaddr, int phy_id) __attribute__((weak)); | |
139 | void monitor_mii(long ioaddr, int phy_id) __attribute__((weak)); | |
140 | ||
141 | ||
142 | /* Command-line flags. */ | |
143 | unsigned int opt_a = 0, /* Show-all-interfaces flag. */ | |
144 | opt_f = 0, /* Force the operation. */ | |
145 | opt_g = 0, | |
146 | opt_G = 0, | |
147 | verbose = 0, /* Verbose flag. */ | |
148 | debug = 0, | |
149 | opt_version = 0, | |
150 | opt_restart = 0, | |
151 | opt_reset = 0, | |
152 | opt_status = 0, | |
153 | opt_watch = 0; | |
154 | static int msg_level = -1; | |
155 | static int set_BMCR = -1; | |
156 | static int nway_advertise = 0; | |
157 | static int fixed_speed = -1; | |
158 | static int override_phy = -1; | |
159 | char *opt_G_string = NULL; | |
160 | ||
161 | /* Internal values. */ | |
162 | int new_ioctl_nums; | |
163 | int skfd = -1; /* AF_INET socket for ioctl() calls. */ | |
164 | struct ifreq ifr; | |
165 | ||
166 | int do_one_xcvr(int skfd); | |
167 | int show_basic_mii(long ioaddr, int phy_id); | |
168 | int mdio_read(int skfd, int phy_id, int location); | |
169 | void mdio_write(int skfd, int phy_id, int location, int value); | |
170 | static int parse_advertise(const char *capabilities); | |
171 | static void monitor_status(long ioaddr, int phy_id); | |
172 | ||
173 | ||
174 | int | |
175 | main(int argc, char **argv) | |
176 | { | |
177 | int c, errflag = 0; | |
178 | char **spp, *ifname; | |
179 | char *progname = rindex(argv[0], '/') ? rindex(argv[0], '/')+1 : argv[0]; | |
180 | ||
181 | while ((c = getopt_long(argc, argv, shortopts, longopts, 0)) != EOF) | |
182 | switch (c) { | |
183 | case 'a': opt_a++; break; | |
184 | case 'A': nway_advertise |= parse_advertise(optarg); | |
185 | if (nway_advertise == -1) errflag++; | |
186 | break; | |
187 | case 'C': set_BMCR = strtoul(optarg, NULL, 16); break; | |
188 | case 'D': debug++; break; | |
189 | case 'f': opt_f++; break; | |
190 | case 'F': fixed_speed = parse_advertise(optarg); | |
191 | if (fixed_speed == -1) errflag++; | |
192 | break; | |
193 | case 'g': opt_g++; break; | |
194 | case 'G': opt_G++; opt_G_string = strdup(optarg); break; | |
195 | case 'm': opt_watch++; opt_status++; break; | |
196 | case 'M': msg_level = strtoul(optarg, NULL, 0); break; | |
197 | case 'h': fprintf(stderr, long_usage_msg, progname); return 0; | |
198 | case 'p': override_phy = atoi(optarg); break; | |
199 | case 'r': opt_restart++; break; | |
200 | case 'R': opt_reset++; break; | |
201 | case 's': opt_status++; break; | |
202 | case 'v': verbose++; break; | |
203 | case 'V': opt_version++; break; | |
204 | case 'w': opt_watch++; break; | |
205 | case '?': errflag++; break; | |
206 | } | |
207 | if (errflag) { | |
208 | fprintf(stderr, usage_msg, progname); | |
209 | return 2; | |
210 | } | |
211 | ||
212 | if (verbose || opt_version) | |
213 | printf(version); | |
214 | ||
215 | /* Open a basic socket. */ | |
216 | if ((skfd = socket(AF_INET, SOCK_DGRAM,0)) < 0) { | |
217 | perror("socket"); | |
218 | return 1; | |
219 | } | |
220 | ||
221 | if (debug) | |
222 | fprintf(stderr, "DEBUG: argc=%d, optind=%d and argv[optind] is %s.\n", | |
223 | argc, optind, argv[optind]); | |
224 | ||
225 | /* No remaining args means show all interfaces. */ | |
226 | if (optind == argc) { | |
227 | ifname = "eth0"; | |
228 | fprintf(stderr, "Using the default interface 'eth0'.\n"); | |
229 | } else { | |
230 | /* Copy the interface name. */ | |
231 | spp = argv + optind; | |
232 | ifname = *spp++; | |
233 | } | |
234 | ||
235 | if (ifname == NULL) { | |
236 | ifname = "eth0"; | |
237 | fprintf(stderr, "Using the default interface 'eth0'.\n"); | |
238 | } | |
239 | ||
240 | /* Verify that the interface supports the ioctl(), and if | |
241 | it is using the new or old SIOCGMIIPHY value (grrr...). | |
242 | */ | |
243 | { | |
244 | u16 *data = (u16 *)(&ifr.ifr_data); | |
245 | ||
246 | strncpy(ifr.ifr_name, ifname, IFNAMSIZ); | |
247 | data[0] = 0; | |
248 | ||
249 | if (ioctl(skfd, 0x8947, &ifr) >= 0) { | |
250 | new_ioctl_nums = 1; | |
251 | } else if (ioctl(skfd, SIOCDEVPRIVATE, &ifr) >= 0) { | |
252 | new_ioctl_nums = 0; | |
253 | } else { | |
254 | fprintf(stderr, "SIOCGMIIPHY on %s failed: %s\n", ifname, | |
255 | strerror(errno)); | |
256 | (void) close(skfd); | |
257 | return 1; | |
258 | } | |
259 | if (verbose) | |
260 | printf(" Using the %s SIOCGMIIPHY value on PHY %d " | |
261 | "(BMCR 0x%4.4x).\n", | |
262 | new_ioctl_nums ? "new" : "old", data[0], data[3]); | |
263 | } | |
264 | ||
265 | do_one_xcvr(skfd); | |
266 | ||
267 | (void) close(skfd); | |
268 | return 0; | |
269 | } | |
270 | ||
271 | int do_one_xcvr(int skfd) | |
272 | { | |
273 | u16 *data = (u16 *)(&ifr.ifr_data); | |
274 | u32 *data32 = (u32 *)(&ifr.ifr_data); | |
275 | unsigned phy_id = data[0]; | |
276 | ||
277 | if (override_phy >= 0) { | |
278 | printf("Using the specified MII PHY index %d.\n", override_phy); | |
279 | phy_id = override_phy; | |
280 | } | |
281 | ||
282 | if (opt_g || opt_G || msg_level >= 0) { | |
283 | if (ioctl(skfd, SIOCGPARAMS, &ifr) < 0) { | |
284 | fprintf(stderr, "SIOCGPARAMS on %s failed: %s\n", ifr.ifr_name, | |
285 | strerror(errno)); | |
286 | return -1; | |
287 | } | |
288 | } | |
289 | if (opt_g) { | |
290 | int i; | |
291 | printf("Driver general parameter settings:"); | |
292 | for (i = 0; i*sizeof(u32) < sizeof(ifr.ifr_ifru); i++) { | |
293 | printf(" %d", data32[i]); | |
294 | } | |
295 | printf(".\n"); | |
296 | } | |
297 | if (opt_G) { | |
298 | /* Set up to four arbitrary driver parameters from the -G parameter. | |
299 | The format is comma separated integers, with a missing element | |
300 | retaining the previous value. | |
301 | */ | |
302 | char *str = opt_G_string; | |
303 | int i; | |
304 | for (i = 0; str && i < 4; i++) { | |
305 | char *endstr; | |
306 | u32 newval = strtol(str, &endstr, 0); | |
307 | if (debug) | |
308 | printf(" parse string '%s' value %d end '%s'.\n", | |
309 | str, newval, endstr); | |
310 | if (str == endstr) { | |
311 | if (endstr[0] == ',') /* No parameter */ | |
312 | str = endstr+1; | |
313 | else { | |
314 | fprintf(stderr, "Invalid driver parameter '%s'.\n", str); | |
315 | str = index(str, ','); | |
316 | } | |
317 | } else if (endstr[0] == ',') { | |
318 | data32[i] = newval; | |
319 | str = endstr + 1; | |
320 | } else if (endstr[0] == 0) { | |
321 | data32[i] = newval; | |
322 | break; | |
323 | } | |
324 | } | |
325 | printf("Setting new driver general parameters:"); | |
326 | for (i = 0; i*sizeof(u32) < sizeof(ifr.ifr_ifru); i++) { | |
327 | printf(" %d", data32[i]); | |
328 | } | |
329 | printf(".\n"); | |
330 | if (ioctl(skfd, SIOCSPARAMS, &ifr) < 0) { | |
331 | fprintf(stderr, "SIOCSPARAMS on %s failed: %s\n", ifr.ifr_name, | |
332 | strerror(errno)); | |
333 | return -1; | |
334 | } | |
335 | } | |
336 | if (msg_level >= 0) { | |
337 | data32[0] = msg_level; | |
338 | if (ioctl(skfd, SIOCSPARAMS, &ifr) < 0) { | |
339 | fprintf(stderr, "SIOCSPARAMS on %s failed: %s\n", ifr.ifr_name, | |
340 | strerror(errno)); | |
341 | return -1; | |
342 | } | |
343 | } | |
344 | ||
345 | if (opt_reset) { | |
346 | printf("Resetting the transceiver...\n"); | |
347 | mdio_write(skfd, phy_id, 0, 0x8000); | |
348 | } | |
349 | /* Note: PHY addresses > 32 are pseudo-MII devices, usually built-in. */ | |
350 | if (phy_id < 64 && nway_advertise > 0) { | |
351 | printf(" Setting the media capability advertisement register of " | |
352 | "PHY #%d to 0x%4.4x.\n", phy_id, nway_advertise | 1); | |
353 | mdio_write(skfd, phy_id, 4, nway_advertise | 1); | |
354 | mdio_write(skfd, phy_id, 0, 0x1000); | |
355 | } | |
356 | ||
357 | if (opt_restart) { | |
358 | printf("Restarting negotiation...\n"); | |
359 | mdio_write(skfd, phy_id, 0, 0x0000); | |
360 | mdio_write(skfd, phy_id, 0, 0x1200); | |
361 | } | |
362 | /* To force 100baseTx-HD do mdio_write(skfd, phy_id, 0, 0x2000); */ | |
363 | if (fixed_speed >= 0) { | |
364 | int reg0_val = 0; | |
365 | if (fixed_speed & 0x0180) /* 100mpbs */ | |
366 | reg0_val |= 0x2000; | |
367 | if ((fixed_speed & 0x0140) && /* A full duplex type and */ | |
368 | ! (fixed_speed & 0x0820)) /* no half duplex types. */ | |
369 | reg0_val |= 0x0100; | |
370 | printf("Setting the speed to \"fixed\", Control register %4.4x.\n", | |
371 | reg0_val); | |
372 | mdio_write(skfd, phy_id, 0, reg0_val); | |
373 | } | |
374 | if (set_BMCR >= 0) { | |
375 | printf("Setting the Basic Mode Control Register to 0x%4.4x.\n", | |
376 | set_BMCR); | |
377 | mdio_write(skfd, phy_id, 0, set_BMCR); | |
378 | } | |
379 | ||
380 | if (opt_watch && opt_status) | |
381 | monitor_status(skfd, phy_id); | |
382 | ||
383 | show_basic_mii(skfd, phy_id); | |
384 | #ifdef LIBMII | |
385 | if (verbose) | |
386 | show_mii_details(skfd, phy_id); | |
387 | #else | |
388 | if (verbose || debug) { | |
389 | int mii_reg, mii_val; | |
390 | printf(" MII PHY #%d transceiver registers:", phy_id); | |
391 | for (mii_reg = 0; mii_reg < 32; mii_reg++) { | |
392 | mii_val = mdio_read(skfd, phy_id, mii_reg); | |
393 | printf("%s %4.4x", (mii_reg % 8) == 0 ? "\n " : "", | |
394 | mii_val); | |
395 | } | |
396 | printf("\n"); | |
397 | } | |
398 | #endif | |
399 | ||
400 | if (opt_watch) | |
401 | monitor_mii(skfd, phy_id); | |
402 | if (opt_status && | |
403 | (mdio_read(skfd, phy_id, 1) & 0x0004) == 0) | |
404 | exit(2); | |
405 | return 0; | |
406 | } | |
407 | ||
408 | int mdio_read(int skfd, int phy_id, int location) | |
409 | { | |
410 | u16 *data = (u16 *)(&ifr.ifr_data); | |
411 | ||
412 | data[0] = phy_id; | |
413 | data[1] = location; | |
414 | ||
415 | if (ioctl(skfd, new_ioctl_nums ? 0x8948 : SIOCDEVPRIVATE+1, &ifr) < 0) { | |
416 | fprintf(stderr, "SIOCGMIIREG on %s failed: %s\n", ifr.ifr_name, | |
417 | strerror(errno)); | |
418 | return -1; | |
419 | } | |
420 | return data[3]; | |
421 | } | |
422 | ||
423 | void mdio_write(int skfd, int phy_id, int location, int value) | |
424 | { | |
425 | u16 *data = (u16 *)(&ifr.ifr_data); | |
426 | ||
427 | data[0] = phy_id; | |
428 | data[1] = location; | |
429 | data[2] = value; | |
430 | ||
431 | if (ioctl(skfd, new_ioctl_nums ? 0x8949 : SIOCDEVPRIVATE+2, &ifr) < 0) { | |
432 | fprintf(stderr, "SIOCSMIIREG on %s failed: %s\n", ifr.ifr_name, | |
433 | strerror(errno)); | |
434 | } | |
435 | } | |
436 | ||
437 | /* Parse the command line argument for advertised capabilities. */ | |
438 | static int parse_advertise(const char *capabilities) | |
439 | { | |
440 | const char *mtypes[] = { | |
441 | "100baseT4", "100baseTx", "100baseTx-FD", "100baseTx-HD", | |
442 | "10baseT", "10baseT-FD", "10baseT-HD", 0, | |
443 | }; | |
444 | char *endptr; | |
445 | int cap_map[] = { 0x0200, 0x0180, 0x0100, 0x0080, 0x0060, 0x0040, 0x0020,}; | |
446 | int i; | |
447 | if ( ! capabilities) { | |
448 | fprintf(stderr, "You passed -A 'NULL'. You must provide a media" | |
449 | " list to advertise!\n"); | |
450 | return -1; | |
451 | } | |
452 | if (debug) | |
453 | fprintf(stderr, "Advertise string is '%s'.\n", capabilities); | |
454 | for (i = 0; mtypes[i]; i++) | |
455 | if (strcasecmp(mtypes[i], capabilities) == 0) | |
456 | return cap_map[i]; | |
457 | if ((i = strtol(capabilities, &endptr, 16)) <= 0xffff && endptr[0] == 0) | |
458 | return i; | |
459 | fprintf(stderr, "Invalid media advertisement value '%s'.\n" | |
460 | " Either pass a numeric value or one of the following names:\n", | |
461 | capabilities); | |
462 | for (i = 0; mtypes[i]; i++) | |
463 | fprintf(stderr, " %-14s %3.3x\n", mtypes[i], cap_map[i]); | |
464 | return -1; | |
465 | } | |
466 | ||
467 | /* Trivial versions if we don't link against libmii.c */ | |
468 | static const char *media_names[] = { | |
469 | "10baseT", "10baseT-FD", "100baseTx", "100baseTx-FD", "100baseT4", | |
470 | "Flow-control", 0, | |
471 | }; | |
472 | /* Various non-good bits in the command register. */ | |
473 | static const char *bmcr_bits[] = { | |
474 | " Internal Collision-Test enabled!\n", "", /* 0x0080,0x0100 */ | |
475 | " Restarted auto-negotiation in progress!\n", | |
476 | " Transceiver isolated from the MII!\n", | |
477 | " Transceiver powered down!\n", "", "", | |
478 | " Transceiver in loopback mode!\n", | |
479 | " Transceiver currently being reset!\n", | |
480 | }; | |
481 | ||
482 | int show_basic_mii(long ioaddr, int phy_id) | |
483 | { | |
484 | int mii_reg, i; | |
485 | u16 mii_val[32]; | |
486 | u16 bmcr, bmsr, new_bmsr, nway_advert, lkpar; | |
487 | ||
488 | for (mii_reg = 0; mii_reg < 8; mii_reg++) | |
489 | mii_val[mii_reg] = mdio_read(ioaddr, phy_id, mii_reg); | |
490 | if ( ! verbose) { | |
491 | printf("Basic registers of MII PHY #%d: ", phy_id); | |
492 | for (mii_reg = 0; mii_reg < 8; mii_reg++) | |
493 | printf(" %4.4x", mii_val[mii_reg]); | |
494 | printf(".\n"); | |
495 | } | |
496 | ||
497 | if (mii_val[0] == 0xffff || mii_val[1] == 0x0000) { | |
498 | printf(" No MII transceiver present!.\n"); | |
499 | if (! opt_f) { | |
500 | printf(" Use '--force' to view the information anyway.\n"); | |
501 | return -1; | |
502 | } | |
503 | } | |
504 | /* Descriptive rename. */ | |
505 | bmcr = mii_val[0]; | |
506 | bmsr = mii_val[1]; | |
507 | nway_advert = mii_val[4]; | |
508 | lkpar = mii_val[5]; | |
509 | ||
510 | if (lkpar & 0x4000) { | |
511 | int negotiated = nway_advert & lkpar & 0x3e0; | |
512 | int max_capability = 0; | |
513 | /* Scan for the highest negotiated capability, highest priority | |
514 | (100baseTx-FDX) to lowest (10baseT-HDX). */ | |
515 | int media_priority[] = {8, 9, 7, 6, 5}; /* media_names[i-5] */ | |
516 | printf(" The autonegotiated capability is %4.4x.\n", negotiated); | |
517 | for (i = 0; media_priority[i]; i++) | |
518 | if (negotiated & (1 << media_priority[i])) { | |
519 | max_capability = media_priority[i]; | |
520 | break; | |
521 | } | |
522 | if (max_capability) | |
523 | printf("The autonegotiated media type is %s.\n", | |
524 | media_names[max_capability - 5]); | |
525 | else | |
526 | printf("No common media type was autonegotiated!\n" | |
527 | "This is extremely unusual and typically indicates a " | |
528 | "configuration error.\n" "Perhaps the advertised " | |
529 | "capability set was intentionally limited.\n"); | |
530 | } | |
531 | printf(" Basic mode control register 0x%4.4x:", bmcr); | |
532 | if (bmcr & 0x1000) | |
533 | printf(" Auto-negotiation enabled.\n"); | |
534 | else | |
535 | printf(" Auto-negotiation disabled, with\n" | |
536 | " Speed fixed at 10%s mbps, %s-duplex.\n", | |
537 | bmcr & 0x2000 ? "0" : "", | |
538 | bmcr & 0x0100 ? "full":"half"); | |
539 | for (i = 0; i < 9; i++) | |
540 | if (bmcr & (0x0080<<i)) | |
541 | printf(bmcr_bits[i]); | |
542 | ||
543 | new_bmsr = mdio_read(ioaddr, phy_id, 1); | |
544 | if ((bmsr & 0x0016) == 0x0004) | |
545 | printf( " You have link beat, and everything is working OK.\n"); | |
546 | else | |
547 | printf(" Basic mode status register 0x%4.4x ... %4.4x.\n" | |
548 | " Link status: %sestablished.\n", | |
549 | bmsr, new_bmsr, | |
550 | bmsr & 0x0004 ? "" : | |
551 | (new_bmsr & 0x0004) ? "previously broken, but now re" : "not "); | |
552 | if (verbose) { | |
553 | printf(" This transceiver is capable of "); | |
554 | if (bmsr & 0xF800) { | |
555 | for (i = 15; i >= 11; i--) | |
556 | if (bmsr & (1<<i)) | |
557 | printf(" %s", media_names[i-11]); | |
558 | } else | |
559 | printf("<Warning! No media capabilities>"); | |
560 | printf(".\n"); | |
561 | printf(" %s to perform Auto-negotiation, negotiation %scomplete.\n", | |
562 | bmsr & 0x0008 ? "Able" : "Unable", | |
563 | bmsr & 0x0020 ? "" : "not "); | |
564 | } | |
565 | ||
566 | if (bmsr & 0x0010) | |
567 | printf(" Remote fault detected!\n"); | |
568 | if (bmsr & 0x0002) | |
569 | printf(" *** Link Jabber! ***\n"); | |
570 | ||
571 | if (lkpar & 0x4000) { | |
572 | printf(" Your link partner advertised %4.4x:", | |
573 | lkpar); | |
574 | for (i = 5; i >= 0; i--) | |
575 | if (lkpar & (0x20<<i)) | |
576 | printf(" %s", media_names[i]); | |
577 | printf("%s.\n", lkpar & 0x0400 ? ", w/ 802.3X flow control" : ""); | |
578 | } else if (lkpar & 0x00A0) | |
579 | printf(" Your link partner is generating %s link beat (no" | |
580 | " autonegotiation).\n", | |
581 | lkpar & 0x0080 ? "100baseTx" : "10baseT"); | |
582 | else if ( ! (bmcr & 0x1000)) | |
583 | printf(" Link partner information is not exchanged when in" | |
584 | " fixed speed mode.\n"); | |
585 | else if ( ! (new_bmsr & 0x004)) | |
586 | ; /* If no partner, do not report status. */ | |
587 | else if (lkpar == 0x0001 || lkpar == 0x0000) { | |
588 | printf(" Your link partner does not do autonegotiation, and this " | |
589 | "transceiver type\n does not report the sensed link " | |
590 | "speed.\n"); | |
591 | } else | |
592 | printf(" Your link partner is strange, status %4.4x.\n", lkpar); | |
593 | ||
594 | printf(" End of basic transceiver information.\n\n"); | |
595 | return 0; | |
596 | } | |
597 | ||
598 | static void monitor_status(long ioaddr, int phy_id) | |
599 | { | |
600 | unsigned int baseline_1 = 0x55555555; /* Always show initial status. */ | |
601 | ||
602 | while (1) { | |
603 | unsigned int new_1 = mdio_read(ioaddr, phy_id, 1); | |
604 | if (new_1 != baseline_1) { | |
605 | printf("%-12s 0x%4.4x 0x%4.4x\n", | |
606 | new_1 & 0x04 ? (new_1==0xffff ? "unknown" : "up") : | |
607 | new_1 & 0x20 ? "negotiating" : "down", | |
608 | new_1, mdio_read(ioaddr, phy_id, 5)); | |
609 | fflush(stdout); | |
610 | baseline_1 = new_1; | |
611 | } | |
612 | sleep(1); | |
613 | } | |
614 | } | |
615 | ||
616 | int show_mii_details(long ioaddr, int phy_id) | |
617 | { | |
618 | int mii_reg, mii_val; | |
619 | printf(" MII PHY #%d transceiver registers:", phy_id); | |
620 | for (mii_reg = 0; mii_reg < 32; mii_reg++) { | |
621 | mii_val = mdio_read(skfd, phy_id, mii_reg); | |
622 | printf("%s %4.4x", (mii_reg % 8) == 0 ? "\n " : "", | |
623 | mii_val); | |
624 | } | |
625 | printf("\nThis version of 'mii-diag' has not been linked with " | |
626 | "the libmii.c library.\n" | |
627 | " That library provides extended transceiver status reports.\n"); | |
628 | return 0; | |
629 | } | |
630 | ||
631 | void monitor_mii(long ioaddr, int phy_id) | |
632 | { | |
633 | fprintf(stderr, "\nThis version of 'mii-diag' has not been linked with " | |
634 | "the libmii.c library \n" | |
635 | " required for the media monitor option.\n"); | |
636 | } | |
637 | ||
638 | ||
639 | \f | |
640 | /* | |
641 | * Local variables: | |
642 | * version-control: t | |
643 | * kept-new-versions: 5 | |
644 | * c-indent-level: 4 | |
645 | * c-basic-offset: 4 | |
646 | * tab-width: 4 | |
647 | * compile-command: "gcc -Wall -Wstrict-prototypes -O mii-diag.c -DLIBMII libmii.c -o mii-diag" | |
648 | * simple-compile-command: "gcc mii-diag.c -o mii-diag" | |
649 | * End: | |
650 | */ |