NAME

     de — DEC DC21x4x Ethernet device driver

SYNOPSIS

     To compile this driver into the kernel, place the following line in your kernel
     configuration file:

           device de

     Alternatively, to load the driver as a module at boot time, place the following line in
     loader.conf(5):

           if_de_load="YES"

DEPRECATION NOTICE

     The de driver is not present in FreeBSD 13.0 and later.  See
     https://github.com/freebsd/fcp/blob/master/fcp-0101.md for more information.

DESCRIPTION

     The de driver provides support for the Ethernet adapters based on the Digital Equipment
     DC21x4x based self-contained Ethernet and Fast Ethernet chips.

     The de driver supports the following media types:

     autoselect       Enable autoselection of the media type and options

     10baseT/UTP      Set 10Mbps operation on the 10baseT port

     10base2/BNC      Set 10Mbps operation on the BNC port

     10base5/AUI      Set 10Mbps operation on the AUI port

     100baseTX        Set 100Mbps (Fast Ethernet) operation

     100baseFX        Set 100Mbps operation

     100baseT4        Set 100Mbps operation (4-pair cat-3 cable)

     The de driver supports the following media options:

     full-duplex      Set full duplex operation

     Note that the media types available depend on the particular card in use.  Some cards are
     explicitly programmed to a particular media type by a setup utility and are not changeable.

     Use the ifconfig(8) command and in particular the -m flag to list the supported media types
     for your particular card.

     The old “ifconfig linkN” method of configuration is not supported.

HARDWARE

     Adapters supported by the de driver include:

     •   Adaptec ANA-6944/TX
     •   Cogent EM100FX and EM440TX
     •   Corega FastEther PCI-TX
     •   D-Link DFE-500TX
     •   DEC DE435, DEC DE450, and DEC DE500
     •   ELECOM LD-PCI2T, LD-PCITS
     •   I-O DATA LA2/T-PCI
     •   SMC Etherpower 8432, 9332 and 9334
     •   ZNYX ZX3xx

DIAGNOSTICS

     de%d: waking device from sleep/snooze mode  The 21041 and 21140A chips support suspending
     the operation of the card.

     de%d: error: desired IRQ of %d does not match device's actual IRQ of %d  The device probe
     detected that the board is configured for a different interrupt than the one specified in
     the kernel configuration file.

     de%d: not configured; limit of %d reached or exceeded  There is a limit of 32 de devices
     allowed in a single machine.

     de%d: not configured; 21040 pass 2.0 required (%d.%d found)
     de%d: not configured; 21140 pass 1.1 required (%d.%d found)  Certain revisions of the
     chipset are not supported by this driver.

SEE ALSO

     altq(4), arp(4), netintro(4), ng_ether(4), ifconfig(8)

AUTHORS

     The de device driver was written by Matt Thomas.  This manual page was written by David E.
     O'Brien.