Index for Section 7

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le(7)
NAME
  le - LeMAC Ethernet interface

SYNOPSIS
  config_driver le

DESCRIPTION
  The le interface provides access to a 10 Mb/s Ethernet network through the
  LeMAC controller.

  The host's Internet address is specified at boot time with an SIOCSIFADDR
  ioctl. The le interface employs the address resolution protocol described
  in arp(7) to map dynamically between Internet and Ethernet addresses on the
  local network.

  The SIOCSPHYSADDR ioctl can be used to change the physical address of the
  LeMAC.  The SIOCRPHYSADDR ioctl can be used to read the physical address of
  the LeMAC.

  The SIOCADDMULTI and SIOCDELMULTI ioctls can be used to add or delete
  multicast addresses. The LeMAC recognizes a maximum of 12 multicast
  addresses.

  The SIOCRDCTRS and SIOCRDZCTRS ioctls can be used to read or ``read and
  clear'' the Ethernet driver counters. The argument to these two ioctls is a
  pointer to a counter structure, ctrreq, found in <net/if.h>.

  The SIOCENABLBACK and SIOCDISABLBACK ioctls can be used to enable and
  disable the interface loopback mode respectively.

ERRORS
  The diagnostic error messages contain relevant information provided by the
  LeMAC.

  [le%d: can't handle af%d]
      The interface was handed a message with addresses formatted in an
      unsuitable address family, and the packet was dropped.

  [le%d: leprobe: failed to get buffer memory for softc
      The le driver was unable to allocate memory for internal data
      structures.

  [le%d: failed to get IRQ config valve]
      The IRQ for the LeMAC is missing from the CMOS configuration data or is
      incorrect.

  [le%d: bad IRQ, must be one of 5, 10, 11, or 15
      The IRQ for the LeMAC is missing from the CMOS configuration data or is
      incorrect.

  [le%d: SIOCADDMULTI failed, multicast list full
      Too many multicast requests have been made.

  [le%d: failed to get memory info]
      The shared memory block for the LeMAC's local RAM buffer is missing
      from the CMOS configuration data.

  [le%d: cannot read station address]
      The station address PROM on the LeMAC is corrupt or inaccessible.

  [le%d: queue overflow, dropping one TX buf, count=%d
      The hardware transmit queue has been overflowed.

  [le%d: I refuse to delete the broadcast address from my hash table
      An attempt was made to delete the Ethernet broadcast address of ff-ff-
      ff-ff-ff.

EXAMPLES
  To obtain the physical address of the adapter, use the SIOCRPHYSADDR ioctl
  as in the following program example:

       #include <stdio.h>	       /* standard I/O */
       #include <errno.h>	       /* error numbers */
       #include <sys/socket.h>	       /* socket definitions */
       #include <sys/ioctl.h>	       /* ioctls */
       #include <net/if.h>	       /* generic interface structures */

       main() {
	 int s,i;
	 struct	 ifdevea  devea;
	 /* Get a socket */
	 s = socket(AF_INET,SOCK_DGRAM,0);
	 if (s < 0) {
	    perror("socket");
	    exit(1);
	 }
	 strcpy(devea.ifr_name,"le0");
	 if (ioctl(s,SIOCRPHYSADDR,&devea) < 0) {
	    perror(&devea.ifr_name[0]);
	    exit(1);
	 }
	 printf("Address is ");
	 for (i = 0; i < 6; i++)
	    printf("%X ", devea.default_pa[i] & 0xff);
	 printf("\n");
	 close(s);
       }

  To enable external loopback, use the SIOCENABLEBACK ioctl as in the
  following program example:

       #include <stdio.h>	       /* standard I/O */
       #include <errno.h>	       /* error numbers */
       #include <sys/socket.h>	       /* socket definitions */
       #include <sys/ioctl.h>	       /* ioctls */
       #include <net/if.h>	       /* generic interface structures */

       main() {
	 int s;
	 struct	 ifreq	data;
	 /* Get a socket */
	 s = socket(AF_INET,SOCK_DGRAM,0);
	 if (s < 0) {
	    perror("socket");
	    exit(1);
	 }
	 strcpy(data.ifr,"le0");
	 if (ioctl(s,SIOCENABLEBACK,&data) < 0) {
	    perror("SIOCENABLEBACK:");
	    exit(1);
	 }
	 close(s);
       }

SEE ALSO
  arp(7), inet(7), netintro(7)

Index for Section 7

Alphabetical listing for L

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