DE(4)

NAME
de - DEC DC21x4x Ethernet device driver

SYNOPSIS
device de0

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

It supports the DEC PCI DE435 card, DEC EISA DE425, DEC DE450, DEC DE500, SMC 8432, 9332 and 9334, Cogent EM100FX and EM440TX, Asante, ZNYX ZX3xx, and others based on the 21040 and 21041 Ethernet controllers or the 21140[A], 21141, 21142 and 21143 Fast 100Mbps Ethernet controllers.

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 an 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.

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.

CAVEATS
Since the 21040 is available on both EISA and PCI boards, one must be careful in how defines the 21040 in the kernel config file.

SEE ALSO
arp(4), netintro(4), ifconfig(8)

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