DE(4)

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