654 lines
20 KiB
C
654 lines
20 KiB
C
/* Mode: C;
|
||
* mii-diag.c: Examine and set the MII registers of a network interfaces.
|
||
|
||
Usage: mii-diag [-vw] interface.
|
||
|
||
This program reads and writes the Media Independent Interface (MII)
|
||
management registers on network transceivers. The registers control
|
||
and report network link settings and errors. Examples are link speed,
|
||
duplex, capabilities advertised to the link partner, status LED
|
||
indications and link error counters.
|
||
|
||
Notes:
|
||
The compile-command is at the end of this source file.
|
||
This program works with drivers that implement MII ioctl() calls.
|
||
|
||
Written/copyright 1997-2003 by Donald Becker <becker@scyld.com>
|
||
|
||
This program is free software; you can redistribute it
|
||
and/or modify it under the terms of the GNU General Public
|
||
License as published by the Free Software Foundation.
|
||
|
||
The author may be reached as becker@scyld.com, or C/O
|
||
Scyld Computing Corporation
|
||
914 Bay Ridge Road, Suite 220
|
||
Annapolis MD 21403
|
||
|
||
References
|
||
http://scyld.com/expert/mii-status.html
|
||
http://scyld.com/expert/NWay.html
|
||
http://www.national.com/pf/DP/DP83840.html
|
||
*/
|
||
|
||
static char version[] =
|
||
"mii-diag.c:v2.11 3/21/2005 Donald Becker (becker@scyld.com)\n"
|
||
" http://www.scyld.com/diag/index.html\n";
|
||
|
||
static const char usage_msg[] =
|
||
"Usage: %s [--help] [-aDfrRvVw] [-AF <speed+duplex>] [--watch] <interface>\n";
|
||
static const char long_usage_msg[] =
|
||
"Usage: %s [-aDfrRvVw] [-AF <speed+duplex>] [--watch] <interface>\n\
|
||
\n\
|
||
This program configures and monitors the transceiver management registers\n\
|
||
for network interfaces. It uses the Media Independent Interface (MII)\n\
|
||
standard with additional Linux-specific controls to communicate with the\n\
|
||
underlying device driver. The MII registers control and report network\n\
|
||
link settings and errors. Examples are link speed, duplex, capabilities\n\
|
||
advertised to the link partner, status LED indications and link error\n\
|
||
counters.\n\
|
||
\n\
|
||
The common usage is\n\
|
||
mii-diag eth0\n\
|
||
\n\
|
||
Frequently used options are\n\
|
||
-A --advertise <speed|setting>\n\
|
||
-F --fixed-speed <speed>\n\
|
||
Speed is one of: 100baseT4, 100baseTx, 100baseTx-FD, 100baseTx-HD,\n\
|
||
10baseT, 10baseT-FD, 10baseT-HD\n\
|
||
-s --status Return exit status 2 if there is no link beat.\n\
|
||
\n\
|
||
Less frequently used options are\n\
|
||
-a --all-interfaces Show the status all interfaces\n\
|
||
(Not recommended with options that change settings.)\n\
|
||
-D --debug\n\
|
||
-g --read-parameters Get driver-specific parameters.\n\
|
||
-G --set-parameters PARMS Set driver-specific parameters.\n\
|
||
Parameters are comma separated, missing parameters retain\n\
|
||
their previous values.\n\
|
||
-M --msg-level LEVEL Set the driver message bit map.\n\
|
||
-p --phy ADDR Set the PHY (MII address) to report.\n\
|
||
-r --restart Restart the link autonegotiation.\n\
|
||
-R --reset Reset the transceiver.\n\
|
||
-v --verbose Report each action taken.\n\
|
||
-V --version Emit version information.\n\
|
||
-w --watch Continuously monitor the transceiver and report changes.\n\
|
||
\n\
|
||
This command returns success (zero) if the interface information can be\n\
|
||
read. If the --status option is passed, a zero return means that the\n\
|
||
interface has link beat.\n\
|
||
";
|
||
|
||
#include <unistd.h>
|
||
#include <stdlib.h>
|
||
#include <stdio.h>
|
||
#include <ctype.h>
|
||
#include <string.h>
|
||
#include <errno.h>
|
||
#include <fcntl.h>
|
||
#include <getopt.h>
|
||
#include <sys/types.h>
|
||
#include <sys/socket.h>
|
||
#include <sys/ioctl.h>
|
||
#include <net/if.h>
|
||
#ifdef use_linux_libc5
|
||
#include <linux/if_arp.h>
|
||
#include <linux/if_ether.h>
|
||
#endif
|
||
|
||
typedef u_int32_t u32;
|
||
typedef u_int16_t u16;
|
||
typedef u_int8_t u8;
|
||
|
||
#if defined(SIOCGPARAMS) && SIOCGPARAMS != SIOCDEVPRIVATE+3
|
||
#error Changed definition for SIOCGPARAMS
|
||
#else
|
||
#define SIOCGPARAMS (SIOCDEVPRIVATE+3) /* Read operational parameters. */
|
||
#define SIOCSPARAMS (SIOCDEVPRIVATE+4) /* Set operational parameters. */
|
||
#endif
|
||
|
||
const char shortopts[] = "aA:C:DfF:gG:hmM:p:rRsvVw?";
|
||
struct option longopts[] = {
|
||
/* { name has_arg *flag val } */
|
||
{"all-interfaces", 0, 0, 'a'}, /* Show all interfaces. */
|
||
{"advertise", 1, 0, 'A'}, /* Change the capabilities advertised. */
|
||
{"BMCR", 1, 0, 'C'}, /* Set the control register. */
|
||
{"debug", 0, 0, 'D'}, /* Increase the debug level. */
|
||
{"force", 0, 0, 'f'}, /* Force the operation. */
|
||
{"fixed-speed", 1, 0, 'F'}, /* Fixed speed name. */
|
||
{"read-parameters", 0, 0, 'g'}, /* Show general settings values. */
|
||
{"set-parameters", 1, 0, 'G'}, /* Write general settings values. */
|
||
{"help", 0, 0, 'h'}, /* Print a long usage message. */
|
||
{"monitor", 0, 0, 'm'}, /* Monitor status register. */
|
||
{"msg-level", 1, 0, 'M'}, /* Set the driver message level. */
|
||
{"phy", 1, 0, 'p'}, /* Set the PHY (MII address) to report. */
|
||
{"restart", 0, 0, 'r'}, /* Restart the link negotiation */
|
||
{"reset", 0, 0, 'R'}, /* Reset the transceiver. */
|
||
{"status", 0, 0, 's'}, /* Non-zero exit status w/ no link beat. */
|
||
{"verbose", 0, 0, 'v'}, /* Report each action taken. */
|
||
{"version", 0, 0, 'V'}, /* Emit version information. */
|
||
{"watch", 0, 0, 'w'}, /* Constantly monitor the port. */
|
||
{"error", 0, 0, '?'}, /* Return the error message. */
|
||
{ 0, 0, 0, 0 }
|
||
};
|
||
|
||
/* Usually in libmii.c, but trivial substitions are below. */
|
||
extern int show_mii_details(long ioaddr, int phy_id);
|
||
extern void monitor_mii(long ioaddr, int phy_id);
|
||
int show_mii_details(long ioaddr, int phy_id) __attribute__((weak));
|
||
void monitor_mii(long ioaddr, int phy_id) __attribute__((weak));
|
||
|
||
|
||
/* Command-line flags. */
|
||
unsigned int opt_a = 0, /* Show-all-interfaces flag. */
|
||
opt_f = 0, /* Force the operation. */
|
||
opt_g = 0,
|
||
opt_G = 0,
|
||
verbose = 0, /* Verbose flag. */
|
||
debug = 0,
|
||
opt_version = 0,
|
||
opt_restart = 0,
|
||
opt_reset = 0,
|
||
opt_status = 0,
|
||
opt_watch = 0;
|
||
static int msg_level = -1;
|
||
static int set_BMCR = -1;
|
||
static int nway_advertise = 0;
|
||
static int fixed_speed = -1;
|
||
static int override_phy = -1;
|
||
char *opt_G_string = NULL;
|
||
|
||
/* Internal values. */
|
||
int new_ioctl_nums;
|
||
int skfd = -1; /* AF_INET socket for ioctl() calls. */
|
||
struct ifreq ifr;
|
||
|
||
int do_one_xcvr(int skfd);
|
||
int show_basic_mii(long ioaddr, int phy_id);
|
||
int mdio_read(int skfd, int phy_id, int location);
|
||
void mdio_write(int skfd, int phy_id, int location, int value);
|
||
static int parse_advertise(const char *capabilities);
|
||
static void monitor_status(long ioaddr, int phy_id);
|
||
|
||
|
||
int
|
||
main(int argc, char **argv)
|
||
{
|
||
int c, errflag = 0;
|
||
char **spp, *ifname;
|
||
char *progname = rindex(argv[0], '/') ? rindex(argv[0], '/')+1 : argv[0];
|
||
|
||
while ((c = getopt_long(argc, argv, shortopts, longopts, 0)) != EOF)
|
||
switch (c) {
|
||
case 'a': opt_a++; break;
|
||
case 'A': nway_advertise |= parse_advertise(optarg);
|
||
if (nway_advertise == -1) errflag++;
|
||
break;
|
||
case 'C': set_BMCR = strtoul(optarg, NULL, 16); break;
|
||
case 'D': debug++; break;
|
||
case 'f': opt_f++; break;
|
||
case 'F': fixed_speed = parse_advertise(optarg);
|
||
if (fixed_speed == -1) errflag++;
|
||
break;
|
||
case 'g': opt_g++; break;
|
||
case 'G': opt_G++; opt_G_string = strdup(optarg); break;
|
||
case 'm': opt_watch++; opt_status++; break;
|
||
case 'M': msg_level = strtoul(optarg, NULL, 0); break;
|
||
case 'h': fprintf(stderr, long_usage_msg, progname); return 0;
|
||
case 'p': override_phy = atoi(optarg); break;
|
||
case 'r': opt_restart++; break;
|
||
case 'R': opt_reset++; break;
|
||
case 's': opt_status++; break;
|
||
case 'v': verbose++; break;
|
||
case 'V': opt_version++; break;
|
||
case 'w': opt_watch++; break;
|
||
case '?': errflag++; break;
|
||
}
|
||
if (errflag) {
|
||
fprintf(stderr, usage_msg, progname);
|
||
return 2;
|
||
}
|
||
|
||
if (verbose || opt_version)
|
||
printf("%s", version);
|
||
|
||
/* Open a basic socket. */
|
||
if ((skfd = socket(AF_INET, SOCK_DGRAM,0)) < 0) {
|
||
perror("socket");
|
||
return 1;
|
||
}
|
||
|
||
if (debug)
|
||
fprintf(stderr, "DEBUG: argc=%d, optind=%d and argv[optind] is %s.\n",
|
||
argc, optind, argv[optind]);
|
||
|
||
/* No remaining args means interface wasn't specified. */
|
||
if (optind == argc) {
|
||
fprintf(stderr, "No interface specified.\n");
|
||
fprintf(stderr, usage_msg, progname);
|
||
(void) close(skfd);
|
||
return 2;
|
||
} else {
|
||
/* Copy the interface name. */
|
||
spp = argv + optind;
|
||
ifname = *spp++;
|
||
}
|
||
|
||
if (ifname == NULL) {
|
||
fprintf(stderr, "No ifname.\n");
|
||
(void) close(skfd);
|
||
return -1;
|
||
}
|
||
|
||
/* Verify that the interface supports the ioctl(), and if
|
||
it is using the new or old SIOCGMIIPHY value (grrr...).
|
||
*/
|
||
{
|
||
u16 *data = (u16 *)(&ifr.ifr_data);
|
||
|
||
strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
|
||
ifr.ifr_name[IFNAMSIZ-1] = '\0';
|
||
data[0] = 0;
|
||
|
||
if (ioctl(skfd, 0x8947, &ifr) >= 0) {
|
||
new_ioctl_nums = 1;
|
||
} else if (ioctl(skfd, SIOCDEVPRIVATE, &ifr) >= 0) {
|
||
new_ioctl_nums = 0;
|
||
} else {
|
||
fprintf(stderr, "SIOCGMIIPHY on %s failed: %s\n", ifname,
|
||
strerror(errno));
|
||
(void) close(skfd);
|
||
return 1;
|
||
}
|
||
if (verbose)
|
||
printf(" Using the %s SIOCGMIIPHY value on PHY %d "
|
||
"(BMCR 0x%4.4x).\n",
|
||
new_ioctl_nums ? "new" : "old", data[0], data[3]);
|
||
}
|
||
|
||
do_one_xcvr(skfd);
|
||
|
||
(void) close(skfd);
|
||
return 0;
|
||
}
|
||
|
||
int do_one_xcvr(int skfd)
|
||
{
|
||
u16 *data = (u16 *)(&ifr.ifr_data);
|
||
u32 *data32 = (u32 *)(&ifr.ifr_data);
|
||
unsigned phy_id = data[0];
|
||
|
||
if (override_phy >= 0) {
|
||
printf("Using the specified MII PHY index %d.\n", override_phy);
|
||
phy_id = override_phy;
|
||
}
|
||
|
||
if (opt_g || opt_G || msg_level >= 0) {
|
||
if (ioctl(skfd, SIOCGPARAMS, &ifr) < 0) {
|
||
fprintf(stderr, "SIOCGPARAMS on %s failed: %s\n", ifr.ifr_name,
|
||
strerror(errno));
|
||
return -1;
|
||
}
|
||
}
|
||
if (opt_g) {
|
||
int i;
|
||
printf("Driver general parameter settings:");
|
||
for (i = 0; i*sizeof(u32) < sizeof(ifr.ifr_ifru); i++) {
|
||
printf(" %d", data32[i]);
|
||
}
|
||
printf(".\n");
|
||
}
|
||
if (opt_G) {
|
||
/* Set up to four arbitrary driver parameters from the -G parameter.
|
||
The format is comma separated integers, with a missing element
|
||
retaining the previous value.
|
||
*/
|
||
char *str = opt_G_string;
|
||
int i;
|
||
for (i = 0; str && i < 4; i++) {
|
||
char *endstr;
|
||
u32 newval = strtol(str, &endstr, 0);
|
||
if (debug)
|
||
printf(" parse string '%s' value %d end '%s'.\n",
|
||
str, newval, endstr);
|
||
if (str == endstr) {
|
||
if (endstr[0] == ',') /* No parameter */
|
||
str = endstr+1;
|
||
else {
|
||
fprintf(stderr, "Invalid driver parameter '%s'.\n", str);
|
||
str = index(str, ',');
|
||
}
|
||
} else if (endstr[0] == ',') {
|
||
data32[i] = newval;
|
||
str = endstr + 1;
|
||
} else if (endstr[0] == 0) {
|
||
data32[i] = newval;
|
||
break;
|
||
}
|
||
}
|
||
printf("Setting new driver general parameters:");
|
||
for (i = 0; i*sizeof(u32) < sizeof(ifr.ifr_ifru); i++) {
|
||
printf(" %d", data32[i]);
|
||
}
|
||
printf(".\n");
|
||
if (ioctl(skfd, SIOCSPARAMS, &ifr) < 0) {
|
||
fprintf(stderr, "SIOCSPARAMS on %s failed: %s\n", ifr.ifr_name,
|
||
strerror(errno));
|
||
return -1;
|
||
}
|
||
}
|
||
if (msg_level >= 0) {
|
||
data32[0] = msg_level;
|
||
if (ioctl(skfd, SIOCSPARAMS, &ifr) < 0) {
|
||
fprintf(stderr, "SIOCSPARAMS on %s failed: %s\n", ifr.ifr_name,
|
||
strerror(errno));
|
||
return -1;
|
||
}
|
||
}
|
||
|
||
if (opt_reset) {
|
||
printf("Resetting the transceiver...\n");
|
||
mdio_write(skfd, phy_id, 0, 0x8000);
|
||
}
|
||
/* Note: PHY addresses > 32 are pseudo-MII devices, usually built-in. */
|
||
if (phy_id < 64 && nway_advertise > 0) {
|
||
printf(" Setting the media capability advertisement register of "
|
||
"PHY #%d to 0x%4.4x.\n", phy_id, nway_advertise | 1);
|
||
mdio_write(skfd, phy_id, 4, nway_advertise | 1);
|
||
mdio_write(skfd, phy_id, 0, 0x1000);
|
||
}
|
||
|
||
if (opt_restart) {
|
||
printf("Restarting negotiation...\n");
|
||
mdio_write(skfd, phy_id, 0, 0x0000);
|
||
mdio_write(skfd, phy_id, 0, 0x1200);
|
||
}
|
||
/* To force 100baseTx-HD do mdio_write(skfd, phy_id, 0, 0x2000); */
|
||
if (fixed_speed >= 0) {
|
||
int reg0_val = 0;
|
||
if (fixed_speed & 0x0180) /* 100mpbs */
|
||
reg0_val |= 0x2000;
|
||
if ((fixed_speed & 0x0140) && /* A full duplex type and */
|
||
! (fixed_speed & 0x0820)) /* no half duplex types. */
|
||
reg0_val |= 0x0100;
|
||
printf("Setting the speed to \"fixed\", Control register %4.4x.\n",
|
||
reg0_val);
|
||
mdio_write(skfd, phy_id, 0, reg0_val);
|
||
}
|
||
if (set_BMCR >= 0) {
|
||
printf("Setting the Basic Mode Control Register to 0x%4.4x.\n",
|
||
set_BMCR);
|
||
mdio_write(skfd, phy_id, 0, set_BMCR);
|
||
}
|
||
|
||
if (opt_watch && opt_status)
|
||
monitor_status(skfd, phy_id);
|
||
|
||
show_basic_mii(skfd, phy_id);
|
||
#ifdef LIBMII
|
||
if (verbose)
|
||
show_mii_details(skfd, phy_id);
|
||
#else
|
||
if (verbose || debug) {
|
||
int mii_reg, mii_val;
|
||
printf(" MII PHY #%d transceiver registers:", phy_id);
|
||
for (mii_reg = 0; mii_reg < 32; mii_reg++) {
|
||
mii_val = mdio_read(skfd, phy_id, mii_reg);
|
||
printf("%s %4.4x", (mii_reg % 8) == 0 ? "\n " : "",
|
||
mii_val);
|
||
}
|
||
printf("\n");
|
||
}
|
||
#endif
|
||
|
||
if (opt_watch)
|
||
monitor_mii(skfd, phy_id);
|
||
if (opt_status &&
|
||
(mdio_read(skfd, phy_id, 1) & 0x0004) == 0)
|
||
exit(2);
|
||
return 0;
|
||
}
|
||
|
||
int mdio_read(int skfd, int phy_id, int location)
|
||
{
|
||
u16 *data = (u16 *)(&ifr.ifr_data);
|
||
|
||
data[0] = phy_id;
|
||
data[1] = location;
|
||
|
||
if (ioctl(skfd, new_ioctl_nums ? 0x8948 : SIOCDEVPRIVATE+1, &ifr) < 0) {
|
||
fprintf(stderr, "SIOCGMIIREG on %s failed: %s\n", ifr.ifr_name,
|
||
strerror(errno));
|
||
return -1;
|
||
}
|
||
return data[3];
|
||
}
|
||
|
||
void mdio_write(int skfd, int phy_id, int location, int value)
|
||
{
|
||
u16 *data = (u16 *)(&ifr.ifr_data);
|
||
|
||
data[0] = phy_id;
|
||
data[1] = location;
|
||
data[2] = value;
|
||
|
||
if (ioctl(skfd, new_ioctl_nums ? 0x8949 : SIOCDEVPRIVATE+2, &ifr) < 0) {
|
||
fprintf(stderr, "SIOCSMIIREG on %s failed: %s\n", ifr.ifr_name,
|
||
strerror(errno));
|
||
}
|
||
}
|
||
|
||
/* Parse the command line argument for advertised capabilities. */
|
||
static int parse_advertise(const char *capabilities)
|
||
{
|
||
const char *mtypes[] = {
|
||
"100baseT4", "100baseTx", "100baseTx-FD", "100baseTx-HD",
|
||
"10baseT", "10baseT-FD", "10baseT-HD", 0,
|
||
};
|
||
char *endptr;
|
||
int cap_map[] = { 0x0200, 0x0180, 0x0100, 0x0080, 0x0060, 0x0040, 0x0020,};
|
||
int i;
|
||
if ( ! capabilities) {
|
||
fprintf(stderr, "You passed -A 'NULL'. You must provide a media"
|
||
" list to advertise!\n");
|
||
return -1;
|
||
}
|
||
if (debug)
|
||
fprintf(stderr, "Advertise string is '%s'.\n", capabilities);
|
||
for (i = 0; mtypes[i]; i++)
|
||
if (strcasecmp(mtypes[i], capabilities) == 0)
|
||
return cap_map[i];
|
||
if ((i = strtol(capabilities, &endptr, 16)) <= 0xffff && endptr[0] == 0)
|
||
return i;
|
||
fprintf(stderr, "Invalid media advertisement value '%s'.\n"
|
||
" Either pass a numeric value or one of the following names:\n",
|
||
capabilities);
|
||
for (i = 0; mtypes[i]; i++)
|
||
fprintf(stderr, " %-14s %3.3x\n", mtypes[i], cap_map[i]);
|
||
return -1;
|
||
}
|
||
|
||
/* Trivial versions if we don't link against libmii.c */
|
||
static const char *media_names[] = {
|
||
"10baseT", "10baseT-FD", "100baseTx", "100baseTx-FD", "100baseT4",
|
||
"Flow-control", 0,
|
||
};
|
||
/* Various non-good bits in the command register. */
|
||
static const char *bmcr_bits[] = {
|
||
" Internal Collision-Test enabled!\n", "", /* 0x0080,0x0100 */
|
||
" Restarted auto-negotiation in progress!\n",
|
||
" Transceiver isolated from the MII!\n",
|
||
" Transceiver powered down!\n", "", "",
|
||
" Transceiver in loopback mode!\n",
|
||
" Transceiver currently being reset!\n",
|
||
};
|
||
|
||
int show_basic_mii(long ioaddr, int phy_id)
|
||
{
|
||
int mii_reg, i;
|
||
u16 mii_val[32];
|
||
u16 bmcr, bmsr, new_bmsr, nway_advert, lkpar;
|
||
|
||
for (mii_reg = 0; mii_reg < 8; mii_reg++)
|
||
mii_val[mii_reg] = mdio_read(ioaddr, phy_id, mii_reg);
|
||
if ( ! verbose) {
|
||
printf("Basic registers of MII PHY #%d: ", phy_id);
|
||
for (mii_reg = 0; mii_reg < 8; mii_reg++)
|
||
printf(" %4.4x", mii_val[mii_reg]);
|
||
printf(".\n");
|
||
}
|
||
|
||
if (mii_val[0] == 0xffff || mii_val[1] == 0x0000) {
|
||
printf(" No MII transceiver present!.\n");
|
||
if (! opt_f) {
|
||
printf(" Use '--force' to view the information anyway.\n");
|
||
return -1;
|
||
}
|
||
}
|
||
/* Descriptive rename. */
|
||
bmcr = mii_val[0];
|
||
bmsr = mii_val[1];
|
||
nway_advert = mii_val[4];
|
||
lkpar = mii_val[5];
|
||
|
||
if (lkpar & 0x4000) {
|
||
int negotiated = nway_advert & lkpar & 0x3e0;
|
||
int max_capability = 0;
|
||
/* Scan for the highest negotiated capability, highest priority
|
||
(100baseTx-FDX) to lowest (10baseT-HDX). */
|
||
int media_priority[] = {8, 9, 7, 6, 5}; /* media_names[i-5] */
|
||
printf(" The autonegotiated capability is %4.4x.\n", negotiated);
|
||
for (i = 0; media_priority[i]; i++)
|
||
if (negotiated & (1 << media_priority[i])) {
|
||
max_capability = media_priority[i];
|
||
break;
|
||
}
|
||
if (max_capability)
|
||
printf("The autonegotiated media type is %s.\n",
|
||
media_names[max_capability - 5]);
|
||
else
|
||
printf("No common media type was autonegotiated!\n"
|
||
"This is extremely unusual and typically indicates a "
|
||
"configuration error.\n" "Perhaps the advertised "
|
||
"capability set was intentionally limited.\n");
|
||
}
|
||
printf(" Basic mode control register 0x%4.4x:", bmcr);
|
||
if (bmcr & 0x1000)
|
||
printf(" Auto-negotiation enabled.\n");
|
||
else
|
||
printf(" Auto-negotiation disabled, with\n"
|
||
" Speed fixed at 10%s mbps, %s-duplex.\n",
|
||
bmcr & 0x2000 ? "0" : "",
|
||
bmcr & 0x0100 ? "full":"half");
|
||
for (i = 0; i < 9; i++)
|
||
if (bmcr & (0x0080<<i))
|
||
printf("%s", bmcr_bits[i]);
|
||
|
||
new_bmsr = mdio_read(ioaddr, phy_id, 1);
|
||
if ((bmsr & 0x0016) == 0x0004)
|
||
printf( " You have link beat, and everything is working OK.\n");
|
||
else
|
||
printf(" Basic mode status register 0x%4.4x ... %4.4x.\n"
|
||
" Link status: %sestablished.\n",
|
||
bmsr, new_bmsr,
|
||
bmsr & 0x0004 ? "" :
|
||
(new_bmsr & 0x0004) ? "previously broken, but now re" : "not ");
|
||
if (verbose) {
|
||
printf(" This transceiver is capable of ");
|
||
if (bmsr & 0xF800) {
|
||
for (i = 15; i >= 11; i--)
|
||
if (bmsr & (1<<i))
|
||
printf(" %s", media_names[i-11]);
|
||
} else
|
||
printf("<Warning! No media capabilities>");
|
||
printf(".\n");
|
||
printf(" %s to perform Auto-negotiation, negotiation %scomplete.\n",
|
||
bmsr & 0x0008 ? "Able" : "Unable",
|
||
bmsr & 0x0020 ? "" : "not ");
|
||
}
|
||
|
||
if (bmsr & 0x0010)
|
||
printf(" Remote fault detected!\n");
|
||
if (bmsr & 0x0002)
|
||
printf(" *** Link Jabber! ***\n");
|
||
|
||
if (lkpar & 0x4000) {
|
||
printf(" Your link partner advertised %4.4x:",
|
||
lkpar);
|
||
for (i = 5; i >= 0; i--)
|
||
if (lkpar & (0x20<<i))
|
||
printf(" %s", media_names[i]);
|
||
printf("%s.\n", lkpar & 0x0400 ? ", w/ 802.3X flow control" : "");
|
||
} else if (lkpar & 0x00A0)
|
||
printf(" Your link partner is generating %s link beat (no"
|
||
" autonegotiation).\n",
|
||
lkpar & 0x0080 ? "100baseTx" : "10baseT");
|
||
else if ( ! (bmcr & 0x1000))
|
||
printf(" Link partner information is not exchanged when in"
|
||
" fixed speed mode.\n");
|
||
else if ( ! (new_bmsr & 0x004))
|
||
; /* If no partner, do not report status. */
|
||
else if (lkpar == 0x0001 || lkpar == 0x0000) {
|
||
printf(" Your link partner does not do autonegotiation, and this "
|
||
"transceiver type\n does not report the sensed link "
|
||
"speed.\n");
|
||
} else
|
||
printf(" Your link partner is strange, status %4.4x.\n", lkpar);
|
||
|
||
printf(" End of basic transceiver information.\n\n");
|
||
return 0;
|
||
}
|
||
|
||
static void monitor_status(long ioaddr, int phy_id)
|
||
{
|
||
unsigned int baseline_1 = 0x55555555; /* Always show initial status. */
|
||
|
||
while (1) {
|
||
unsigned int new_1 = mdio_read(ioaddr, phy_id, 1);
|
||
if (new_1 != baseline_1) {
|
||
printf("%-12s 0x%4.4x 0x%4.4x\n",
|
||
new_1 & 0x04 ? (new_1==0xffff ? "unknown" : "up") :
|
||
new_1 & 0x20 ? "negotiating" : "down",
|
||
new_1, mdio_read(ioaddr, phy_id, 5));
|
||
fflush(stdout);
|
||
baseline_1 = new_1;
|
||
}
|
||
sleep(1);
|
||
}
|
||
}
|
||
|
||
int show_mii_details(long ioaddr, int phy_id)
|
||
{
|
||
int mii_reg, mii_val;
|
||
printf(" MII PHY #%d transceiver registers:", phy_id);
|
||
for (mii_reg = 0; mii_reg < 32; mii_reg++) {
|
||
mii_val = mdio_read(skfd, phy_id, mii_reg);
|
||
printf("%s %4.4x", (mii_reg % 8) == 0 ? "\n " : "",
|
||
mii_val);
|
||
}
|
||
printf("\nThis version of 'mii-diag' has not been linked with "
|
||
"the libmii.c library.\n"
|
||
" That library provides extended transceiver status reports.\n");
|
||
return 0;
|
||
}
|
||
|
||
void monitor_mii(long ioaddr, int phy_id)
|
||
{
|
||
fprintf(stderr, "\nThis version of 'mii-diag' has not been linked with "
|
||
"the libmii.c library \n"
|
||
" required for the media monitor option.\n");
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
* Local variables:
|
||
* version-control: t
|
||
* kept-new-versions: 5
|
||
* c-indent-level: 4
|
||
* c-basic-offset: 4
|
||
* tab-width: 4
|
||
* compile-command: "gcc -Wall -Wstrict-prototypes -O mii-diag.c -DLIBMII libmii.c -o mii-diag"
|
||
* simple-compile-command: "gcc mii-diag.c -o mii-diag"
|
||
* End:
|
||
*/
|