1 .\" $NetBSD: txp.4,v 1.3 2003/08/21 12:50:57 drochner Exp $
3 .\" Copyright (c) 2001 Jason L. Wright (jason@thought.net)
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32 .Nd 3Com 3XP Typhoon/Sidewinder (3CR990) Ethernet interface
34 .Cd "txp* at pci? dev ? function ?"
38 interface provides access to the 10Mb/s and 100Mb/s Ethernet networks via the
40 .Tn Typhoon/Sidewinder
42 This driver supports the following cards:
44 .Bl -bullet -offset indent -compact
55 Basic Ethernet functions are provided as well as support for
57 tag removal and insertion assistance,
68 There is currently no support for
78 Note that hardware checksumming is only used when the interface is not
83 Each of the host's network addresses
84 is specified at boot time with an
89 interface employs the address resolution protocol described in
91 to dynamically map between Internet and Ethernet addresses on the local
96 interface is brought up, by default, it will attempt to auto-negotiate the
97 link speed and duplex mode.
98 The speeds, in order of attempt, are: 100Mb/s Full Duplex, 100Mb/s Half Duplex,
99 10 Mb/s Full Duplex, and 10 Mb/s Half Duplex.
103 supports several media types, which are selected via the
106 The supported media types are:
107 .Bl -tag -width xxxxxxxxxxxxxx -offset indent
109 Attempt to autoselect the media type (default)
110 .It media 100baseTX mediaopt full-duplex
111 Use 100baseTX, full duplex
112 .It media 100baseTX Op mediaopt half-duplex
113 Use 100baseTX, half duplex
114 .It media 10baseT mediaopt full-duplex
115 Use 10baseT, full duplex
116 .It media 10baseT Op mediaopt half-duplex
117 Use 10baseT, half duplex
134 driver first appeared in