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 21, 2018 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 transmit 78.Xr tcp 4 79or 80.Xr udp 4 81checksum offloading, nor 82.Xr tcp 4 83segmentation. 84Note that hardware checksumming is only used when the interface is not 85in 86.Xr bridge 4 87mode. 88.Pp 89Each of the host's network addresses 90is specified at boot time with an 91.Dv SIOCSIFADDR 92.Xr ioctl 2 . 93The 94.Nm 95interface employs the address resolution protocol described in 96.Xr arp 4 97to dynamically map between Internet and Ethernet addresses on the local 98network. 99.Pp 100When a 101.Nm 102interface is brought up, by default, it will attempt to auto-negotiate the 103link speed and duplex mode. 104The speeds, in order of attempt, are: 105100Mb/s Full Duplex, 100Mb/s Half Duplex, 10 Mb/s Full Duplex, and 10610 Mb/s Half Duplex. 107.Pp 108The 109.Nm 110supports several media types, which are selected via the 111.Xr ifconfig 8 112command. 113The supported media types are: 114.Bl -tag -width indent 115.It Cm media autoselect 116Attempt to autoselect the media type (default) 117.It Cm media 100baseTX mediaopt full-duplex 118Use 100baseTX, full duplex 119.It Cm media 100baseTX Op Cm mediaopt half-duplex 120Use 100baseTX, half duplex 121.It Cm media 10baseT mediaopt full-duplex 122Use 10baseT, full duplex 123.It Cm media 10baseT Op Cm mediaopt half-duplex 124Use 10baseT, half duplex 125.El 126.Sh SEE ALSO 127.Xr arp 4 , 128.Xr ifmedia 4 , 129.Xr inet 4 , 130.Xr intro 4 , 131.Xr ip 4 , 132.Xr tcp 4 , 133.Xr udp 4 , 134.Xr vlan 4 , 135.Xr ifconfig 8 136.Sh HISTORY 137The 138.Nm 139driver first appeared in 140.Ox 2.9 . 141