1.\" $OpenBSD: txp.4,v 1.8 2001/06/26 02:09:11 pjanzen Exp $ 2.\" $FreeBSD: src/share/man/man4/txp.4,v 1.1.2.2 2001/08/17 13:08:39 ru Exp $ 3.\" 4.\" Copyright (c) 2001 Jason L. Wright (jason@thought.net) 5.\" All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. All advertising materials mentioning features or use of this software 16.\" must display the following acknowledgement: 17.\" This product includes software developed by Jason L. Wright 18.\" 4. The name of the author may not be used to endorse or promote products 19.\" derived from this software without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24.\" DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 25.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 29.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31.\" POSSIBILITY OF SUCH DAMAGE. 32.\" 33.Dd April 15, 2001 34.Dt TXP 4 35.Os 36.Sh NAME 37.Nm txp 38.Nd 3Com 3XP Typhoon/Sidewinder (3CR990) Ethernet interface 39.Sh SYNOPSIS 40.Cd "device txp" 41.Sh DESCRIPTION 42The 43.Nm 44interface provides access to the 10Mb/s and 100Mb/s Ethernet networks via the 45.Tn 3Com 46.Tn Typhoon/Sidewinder 47chipset. 48This driver supports the following cards: 49.Pp 50.Bl -bullet -offset indent -compact 51.It 523Com 3CR990-TX-95 53.It 543Com 3CR990-TX-97 55.It 563Com 3cR990B-TXM 57.It 583Com 3CR990SVR95 59.It 603Com 3CR990SVR97 61.It 623Com 3cR990B-SRV 63.El 64.Pp 65Basic Ethernet functions are provided as well as support for 66.Xr vlan 4 67tag removal and insertion assistance, receive 68.Xr ip 4 , 69.Xr tcp 4 , 70and 71.Xr udp 4 72checksum offloading, 73and 74transmit 75.Xr ip 4 76checksum offloading. 77There is currently no support for 78transmit 79.Xr tcp 4 80or 81.Xr udp 4 82checksum offloading, 83.Xr tcp 4 84segmentation, nor 85.Xr ipsec 4 86acceleration. 87Note that hardware checksumming is only used when the interface is not 88in 89.Xr bridge 4 90mode. 91.Pp 92Each of the host's network addresses 93is specified at boot time with an 94.Dv SIOCSIFADDR 95.Xr ioctl 2 . 96The 97.Nm 98interface employs the address resolution protocol described in 99.Xr arp 4 100to dynamically map between Internet and Ethernet addresses on the local 101network. 102.Pp 103When a 104.Nm 105interface is brought up, by default, it will attempt to auto-negotiate the 106link speed and duplex mode. 107The speeds, in order of attempt, are: 108100Mb/s Full Duplex, 100Mb/s Half Duplex, 10 Mb/s Full Duplex, and 10910 Mb/s Half Duplex. 110.Pp 111The 112.Nm 113supports several media types, which are selected via the 114.Xr ifconfig 8 115command. 116The supported media types are: 117.Bl -tag -width indent 118.It Cm media autoselect 119Attempt to autoselect the media type (default) 120.It Cm media 100baseTX mediaopt full-duplex 121Use 100baseTX, full duplex 122.It Cm media 100baseTX Op Cm mediaopt half-duplex 123Use 100baseTX, half duplex 124.It Cm media 10baseT mediaopt full-duplex 125Use 10baseT, full duplex 126.It Cm media 10baseT Op Cm mediaopt half-duplex 127Use 10baseT, half duplex 128.El 129.Sh SEE ALSO 130.Xr arp 4 , 131.Xr ifmedia 4 , 132.Xr inet 4 , 133.Xr intro 4 , 134.Xr ip 4 , 135.Xr tcp 4 , 136.Xr udp 4 , 137.Xr vlan 4 , 138.Xr ifconfig 8 139.Sh HISTORY 140The 141.Nm 142driver first appeared in 143.Ox 2.9 . 144