362c5c1e02
blown over by the Hurricane and had a house dropped on you by the Tornado. Now it's time to have your parade rained on by... the Typhoon! This commit adds driver support for 3Com 3cR990 10/100 ethernet adapters based on the Typhoon I and Typhoon II chipsets. This is actually a port of the OpenBSD driver with many hacks by me. No Virginia, there isn't any support for the hardware crypto yet. However there is support for TCP/IP checksum offload and VLANs. Special thanks go to Jason Wright, Aaron Campbell and Theo de Raadt for squeezing enough info out of 3Com to get this written, and for doing most of the hard work. Manual page is included. Compiled as a module and included in GENERIC.
143 lines
3.9 KiB
Groff
143 lines
3.9 KiB
Groff
.\" $OpenBSD: txp.4,v 1.8 2001/06/26 02:09:11 pjanzen Exp $
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.\" $FreeBSD$
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.\"
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.\" Copyright (c) 2001 Jason L. Wright (jason@thought.net)
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by Jason L. Wright
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.\" 4. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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.\" DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd April 15, 2001
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.Dt TXP 4
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.Os
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.Sh NAME
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.Nm txp
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.Nd 3Com 3XP Typhoon/Sidewinder (3CR990) Ethernet interface
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.Sh SYNOPSIS
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.Cd "device txp"
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.Sh DESCRIPTION
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The
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.Nm
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interface provides access to the 10Mb/s and 100Mb/s Ethernet networks via the
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.Tn 3Com
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.Tn Typhoon/Sidewinder
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chipset.
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This driver supports the following cards:
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.Pp
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.Bl -bullet -offset indent -compact
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.It
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3Com 3CR990-TX-95
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.It
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3Com 3CR990-TX-97
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.It
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3Com 3cR990B-TXM
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.It
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3Com 3CR990SVR95
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.It
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3Com 3CR990SVR97
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.It
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3Com 3cR990B-SRV
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.El
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.Pp
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Basic Ethernet functions are provided as well as support for
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.Xr vlan 4
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tag removal and insertion assistance, receive
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.Xr ip 4 ,
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.Xr tcp 4 ,
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and
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.Xr udp 4
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checksum offloading,
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and
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transmit
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.Xr ip 4
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checksum offloading.
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There is currently no support for
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transmit
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.Xr tcp 4
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or
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.Xr udp 4
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checksum offloading,
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.Xr tcp 4
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segmentation, nor
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.Xr ipsec 4
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acceleration.
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Note that hardware checksumming is only used when the interface is not
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in
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.Xr bridge 4
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mode.
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.Pp
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Each of the host's network addresses
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is specified at boot time with an
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.Dv SIOCSIFADDR
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.Xr ioctl 2 .
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The
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.Nm
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interface employs the address resolution protocol described in
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.Xr arp 4
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to dynamically map between Internet and Ethernet addresses on the local
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network.
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.Pp
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When a
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.Nm
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interface is brought up, by default, it will attempt to auto-negotiate the
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link speed and duplex mode. The speeds, in order of attempt, are:
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100Mb/s Full Duplex, 100Mb/s Half Duplex, 10 Mb/s Full Duplex, and
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10 Mb/s Half Duplex.
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.Pp
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The
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.Nm
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supports several media types, which are selected via the
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.Xr ifconfig 8
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command.
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The supported media types are:
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.Bl -tag -width xxxxxxxxxxxxxx -offset indent
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.It media autoselect
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Attempt to autoselect the media type (default)
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.It media 100baseTX mediaopt full-duplex
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Use 100baseTX, full duplex
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.It media 100baseTX Op mediaopt half-duplex
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Use 100baseTX, half duplex
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.It media 10baseT mediaopt full-duplex
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Use 10baseT, full duplex
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.It media 10baseT Op mediaopt half-duplex
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Use 10baseT, half duplex
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.El
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.Sh SEE ALSO
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.Xr arp 4 ,
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.Xr ifmedia 4 ,
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.Xr inet 4 ,
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.Xr intro 4 ,
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.Xr ip 4 ,
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.Xr tcp 4 ,
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.Xr udp 4 ,
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.Xr vlan 4 ,
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.Xr ifconfig 8
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Ox 2.9 .
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