654 lines
20 KiB
C
654 lines
20 KiB
C
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/* Mode: C;
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* mii-diag.c: Examine and set the MII registers of a network interfaces.
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Usage: mii-diag [-vw] interface.
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This program reads and writes the Media Independent Interface (MII)
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management registers on network transceivers. The registers control
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and report network link settings and errors. Examples are link speed,
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duplex, capabilities advertised to the link partner, status LED
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indications and link error counters.
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Notes:
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The compile-command is at the end of this source file.
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This program works with drivers that implement MII ioctl() calls.
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Written/copyright 1997-2003 by Donald Becker <becker@scyld.com>
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This program is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation.
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The author may be reached as becker@scyld.com, or C/O
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Scyld Computing Corporation
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914 Bay Ridge Road, Suite 220
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Annapolis MD 21403
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References
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http://scyld.com/expert/mii-status.html
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http://scyld.com/expert/NWay.html
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http://www.national.com/pf/DP/DP83840.html
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*/
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static char version[] =
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"mii-diag.c:v2.11 3/21/2005 Donald Becker (becker@scyld.com)\n"
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" http://www.scyld.com/diag/index.html\n";
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static const char usage_msg[] =
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"Usage: %s [--help] [-aDfrRvVw] [-AF <speed+duplex>] [--watch] <interface>\n";
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static const char long_usage_msg[] =
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"Usage: %s [-aDfrRvVw] [-AF <speed+duplex>] [--watch] <interface>\n\
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\n\
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This program configures and monitors the transceiver management registers\n\
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for network interfaces. It uses the Media Independent Interface (MII)\n\
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standard with additional Linux-specific controls to communicate with the\n\
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underlying device driver. The MII registers control and report network\n\
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link settings and errors. Examples are link speed, duplex, capabilities\n\
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advertised to the link partner, status LED indications and link error\n\
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counters.\n\
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\n\
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The common usage is\n\
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mii-diag eth0\n\
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\n\
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Frequently used options are\n\
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-A --advertise <speed|setting>\n\
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-F --fixed-speed <speed>\n\
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Speed is one of: 100baseT4, 100baseTx, 100baseTx-FD, 100baseTx-HD,\n\
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10baseT, 10baseT-FD, 10baseT-HD\n\
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-s --status Return exit status 2 if there is no link beat.\n\
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\n\
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Less frequently used options are\n\
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-a --all-interfaces Show the status all interfaces\n\
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(Not recommended with options that change settings.)\n\
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-D --debug\n\
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-g --read-parameters Get driver-specific parameters.\n\
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-G --set-parameters PARMS Set driver-specific parameters.\n\
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Parameters are comma separated, missing parameters retain\n\
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their previous values.\n\
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-M --msg-level LEVEL Set the driver message bit map.\n\
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-p --phy ADDR Set the PHY (MII address) to report.\n\
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-r --restart Restart the link autonegotiation.\n\
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-R --reset Reset the transceiver.\n\
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-v --verbose Report each action taken.\n\
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-V --version Emit version information.\n\
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-w --watch Continuously monitor the transceiver and report changes.\n\
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\n\
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This command returns success (zero) if the interface information can be\n\
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read. If the --status option is passed, a zero return means that the\n\
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interface has link beat.\n\
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";
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <string.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <net/if.h>
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#ifdef use_linux_libc5
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#include <linux/if_arp.h>
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#include <linux/if_ether.h>
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#endif
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typedef u_int32_t u32;
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typedef u_int16_t u16;
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typedef u_int8_t u8;
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#if defined(SIOCGPARAMS) && SIOCGPARAMS != SIOCDEVPRIVATE+3
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#error Changed definition for SIOCGPARAMS
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#else
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#define SIOCGPARAMS (SIOCDEVPRIVATE+3) /* Read operational parameters. */
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#define SIOCSPARAMS (SIOCDEVPRIVATE+4) /* Set operational parameters. */
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#endif
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const char shortopts[] = "aA:C:DfF:gG:hmM:p:rRsvVw?";
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struct option longopts[] = {
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/* { name has_arg *flag val } */
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{"all-interfaces", 0, 0, 'a'}, /* Show all interfaces. */
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{"advertise", 1, 0, 'A'}, /* Change the capabilities advertised. */
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{"BMCR", 1, 0, 'C'}, /* Set the control register. */
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{"debug", 0, 0, 'D'}, /* Increase the debug level. */
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{"force", 0, 0, 'f'}, /* Force the operation. */
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{"fixed-speed", 1, 0, 'F'}, /* Fixed speed name. */
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{"read-parameters", 0, 0, 'g'}, /* Show general settings values. */
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{"set-parameters", 1, 0, 'G'}, /* Write general settings values. */
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{"help", 0, 0, 'h'}, /* Print a long usage message. */
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{"monitor", 0, 0, 'm'}, /* Monitor status register. */
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{"msg-level", 1, 0, 'M'}, /* Set the driver message level. */
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{"phy", 1, 0, 'p'}, /* Set the PHY (MII address) to report. */
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{"restart", 0, 0, 'r'}, /* Restart the link negotiation */
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{"reset", 0, 0, 'R'}, /* Reset the transceiver. */
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{"status", 0, 0, 's'}, /* Non-zero exit status w/ no link beat. */
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{"verbose", 0, 0, 'v'}, /* Report each action taken. */
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{"version", 0, 0, 'V'}, /* Emit version information. */
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{"watch", 0, 0, 'w'}, /* Constantly monitor the port. */
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{"error", 0, 0, '?'}, /* Return the error message. */
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{ 0, 0, 0, 0 }
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};
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/* Usually in libmii.c, but trivial substitions are below. */
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extern int show_mii_details(long ioaddr, int phy_id);
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extern void monitor_mii(long ioaddr, int phy_id);
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int show_mii_details(long ioaddr, int phy_id) __attribute__((weak));
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void monitor_mii(long ioaddr, int phy_id) __attribute__((weak));
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/* Command-line flags. */
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unsigned int opt_a = 0, /* Show-all-interfaces flag. */
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opt_f = 0, /* Force the operation. */
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opt_g = 0,
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opt_G = 0,
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verbose = 0, /* Verbose flag. */
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debug = 0,
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opt_version = 0,
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opt_restart = 0,
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opt_reset = 0,
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opt_status = 0,
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opt_watch = 0;
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static int msg_level = -1;
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static int set_BMCR = -1;
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static int nway_advertise = 0;
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static int fixed_speed = -1;
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static int override_phy = -1;
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char *opt_G_string = NULL;
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/* Internal values. */
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int new_ioctl_nums;
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int skfd = -1; /* AF_INET socket for ioctl() calls. */
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struct ifreq ifr;
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int do_one_xcvr(int skfd);
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int show_basic_mii(long ioaddr, int phy_id);
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int mdio_read(int skfd, int phy_id, int location);
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void mdio_write(int skfd, int phy_id, int location, int value);
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static int parse_advertise(const char *capabilities);
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static void monitor_status(long ioaddr, int phy_id);
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int
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main(int argc, char **argv)
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{
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int c, errflag = 0;
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char **spp, *ifname;
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char *progname = rindex(argv[0], '/') ? rindex(argv[0], '/')+1 : argv[0];
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while ((c = getopt_long(argc, argv, shortopts, longopts, 0)) != EOF)
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switch (c) {
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case 'a': opt_a++; break;
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case 'A': nway_advertise |= parse_advertise(optarg);
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if (nway_advertise == -1) errflag++;
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break;
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case 'C': set_BMCR = strtoul(optarg, NULL, 16); break;
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case 'D': debug++; break;
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case 'f': opt_f++; break;
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case 'F': fixed_speed = parse_advertise(optarg);
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if (fixed_speed == -1) errflag++;
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break;
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case 'g': opt_g++; break;
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case 'G': opt_G++; opt_G_string = strdup(optarg); break;
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case 'm': opt_watch++; opt_status++; break;
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case 'M': msg_level = strtoul(optarg, NULL, 0); break;
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case 'h': fprintf(stderr, long_usage_msg, progname); return 0;
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case 'p': override_phy = atoi(optarg); break;
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case 'r': opt_restart++; break;
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case 'R': opt_reset++; break;
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case 's': opt_status++; break;
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case 'v': verbose++; break;
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case 'V': opt_version++; break;
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case 'w': opt_watch++; break;
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case '?': errflag++; break;
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}
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if (errflag) {
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fprintf(stderr, usage_msg, progname);
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return 2;
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}
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if (verbose || opt_version)
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printf("%s", version);
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/* Open a basic socket. */
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if ((skfd = socket(AF_INET, SOCK_DGRAM,0)) < 0) {
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perror("socket");
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return 1;
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}
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if (debug)
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fprintf(stderr, "DEBUG: argc=%d, optind=%d and argv[optind] is %s.\n",
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argc, optind, argv[optind]);
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/* No remaining args means interface wasn't specified. */
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if (optind == argc) {
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fprintf(stderr, "No interface specified.\n");
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fprintf(stderr, usage_msg, progname);
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(void) close(skfd);
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return 2;
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} else {
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/* Copy the interface name. */
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spp = argv + optind;
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ifname = *spp++;
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}
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if (ifname == NULL) {
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fprintf(stderr, "No ifname.\n");
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(void) close(skfd);
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return -1;
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}
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/* Verify that the interface supports the ioctl(), and if
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it is using the new or old SIOCGMIIPHY value (grrr...).
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*/
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{
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u16 *data = (u16 *)(&ifr.ifr_data);
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strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
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ifr.ifr_name[IFNAMSIZ-1] = '\0';
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data[0] = 0;
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if (ioctl(skfd, 0x8947, &ifr) >= 0) {
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new_ioctl_nums = 1;
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} else if (ioctl(skfd, SIOCDEVPRIVATE, &ifr) >= 0) {
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new_ioctl_nums = 0;
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} else {
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fprintf(stderr, "SIOCGMIIPHY on %s failed: %s\n", ifname,
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strerror(errno));
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(void) close(skfd);
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return 1;
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}
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if (verbose)
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printf(" Using the %s SIOCGMIIPHY value on PHY %d "
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"(BMCR 0x%4.4x).\n",
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new_ioctl_nums ? "new" : "old", data[0], data[3]);
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}
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do_one_xcvr(skfd);
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(void) close(skfd);
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return 0;
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}
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int do_one_xcvr(int skfd)
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{
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u16 *data = (u16 *)(&ifr.ifr_data);
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u32 *data32 = (u32 *)(&ifr.ifr_data);
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unsigned phy_id = data[0];
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if (override_phy >= 0) {
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printf("Using the specified MII PHY index %d.\n", override_phy);
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phy_id = override_phy;
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}
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if (opt_g || opt_G || msg_level >= 0) {
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if (ioctl(skfd, SIOCGPARAMS, &ifr) < 0) {
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fprintf(stderr, "SIOCGPARAMS on %s failed: %s\n", ifr.ifr_name,
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strerror(errno));
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return -1;
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}
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}
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if (opt_g) {
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int i;
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printf("Driver general parameter settings:");
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for (i = 0; i*sizeof(u32) < sizeof(ifr.ifr_ifru); i++) {
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printf(" %d", data32[i]);
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}
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printf(".\n");
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}
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if (opt_G) {
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/* Set up to four arbitrary driver parameters from the -G parameter.
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The format is comma separated integers, with a missing element
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retaining the previous value.
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*/
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char *str = opt_G_string;
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int i;
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for (i = 0; str && i < 4; i++) {
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char *endstr;
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u32 newval = strtol(str, &endstr, 0);
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if (debug)
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printf(" parse string '%s' value %d end '%s'.\n",
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str, newval, endstr);
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if (str == endstr) {
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if (endstr[0] == ',') /* No parameter */
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str = endstr+1;
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else {
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fprintf(stderr, "Invalid driver parameter '%s'.\n", str);
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str = index(str, ',');
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}
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} else if (endstr[0] == ',') {
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data32[i] = newval;
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str = endstr + 1;
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} else if (endstr[0] == 0) {
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data32[i] = newval;
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break;
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}
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}
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printf("Setting new driver general parameters:");
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for (i = 0; i*sizeof(u32) < sizeof(ifr.ifr_ifru); i++) {
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printf(" %d", data32[i]);
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}
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printf(".\n");
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if (ioctl(skfd, SIOCSPARAMS, &ifr) < 0) {
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fprintf(stderr, "SIOCSPARAMS on %s failed: %s\n", ifr.ifr_name,
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strerror(errno));
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return -1;
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}
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}
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if (msg_level >= 0) {
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data32[0] = msg_level;
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if (ioctl(skfd, SIOCSPARAMS, &ifr) < 0) {
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fprintf(stderr, "SIOCSPARAMS on %s failed: %s\n", ifr.ifr_name,
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strerror(errno));
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return -1;
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}
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}
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if (opt_reset) {
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printf("Resetting the transceiver...\n");
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mdio_write(skfd, phy_id, 0, 0x8000);
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}
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/* Note: PHY addresses > 32 are pseudo-MII devices, usually built-in. */
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if (phy_id < 64 && nway_advertise > 0) {
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printf(" Setting the media capability advertisement register of "
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"PHY #%d to 0x%4.4x.\n", phy_id, nway_advertise | 1);
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mdio_write(skfd, phy_id, 4, nway_advertise | 1);
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mdio_write(skfd, phy_id, 0, 0x1000);
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}
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if (opt_restart) {
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printf("Restarting negotiation...\n");
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mdio_write(skfd, phy_id, 0, 0x0000);
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mdio_write(skfd, phy_id, 0, 0x1200);
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}
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/* To force 100baseTx-HD do mdio_write(skfd, phy_id, 0, 0x2000); */
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if (fixed_speed >= 0) {
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int reg0_val = 0;
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if (fixed_speed & 0x0180) /* 100mpbs */
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reg0_val |= 0x2000;
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if ((fixed_speed & 0x0140) && /* A full duplex type and */
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! (fixed_speed & 0x0820)) /* no half duplex types. */
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|||
|
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:
|
|||
|
*/
|