TXP(4)

NAME
txp - 3Com 3XP Typhoon/Sidewinder (3CR990) 10/100 Ethernet device

SYNOPSIS
txp* at pci?

DESCRIPTION
The txp driver provides support for the 3Com Typhoon/Sidewinder Fast Ethernet chipset, including the following:

•   3Com 3CR990-TX-95
•   3Com 3CR990-TX-97
•   3Com 3CR990SVR95
•   3Com 3CR990SVR97

The txp driver supports IPv4 receive IP/TCP/UDP checksum offload, IPv4 transmit IP checksum offload, and VLAN tag insertion and stripping.

The txp driver supports the following media types:

autoselect
    Enable autoselection of the media type and options. The user can manually override the autoselected mode by adding media options to the appropriate hostname.if(5) file.

10baseT
    Set 10Mbps operation. The ifconfig(8) mediaopt option can also be used to select either full-duplex or half-duplex modes.

100baseTX
    Set 100Mbps (Fast Ethernet) operation. The ifconfig(8) mediaopt option can also be used to select either full-duplex or half-duplex modes.

The txp driver supports the following media options:

full-duplex
    Force full duplex operation.

half-duplex
    Force half duplex operation.

For more information on configuring this device, see ifconfig(8).

FILES
The driver needs a firmware file, which is loaded on demand when the device is attached:

/etc/firmware/3c990

SEE ALSO
arp(4), ifmedia(4), intro(4), netintro(4), pci(4), hostname.if(5), ifconfig(8)

HISTORY
The txp driver first appeared in OpenBSD 2.9.