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 |
|
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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 |
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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 |
|
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 |
*/ |