1 .\" $OpenBSD: txp.4,v 1.8 2001/06/26 02:09:11 pjanzen Exp $
3 .\" Copyright (c) 2001 Jason L. Wright (jason@thought.net)
4 .\" All rights reserved.
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9 .\" 1. Redistributions of source code must retain the above copyright
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15 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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34 .Nd "3Com 3XP Typhoon/Sidewinder (3CR990) Ethernet interface"
36 To compile this driver into the kernel,
37 place the following line in your
38 kernel configuration file:
39 .Bd -ragged -offset indent
43 Alternatively, to load the driver as a
44 module at boot time, place the following line in
46 .Bd -literal -offset indent
52 interface provides access to the 10Mb/s and 100Mb/s Ethernet networks via the
54 .Tn Typhoon/Sidewinder
57 Basic Ethernet functions are provided as well as support for
59 tag removal and insertion assistance, receive
69 There is currently no support for
79 Note that hardware checksumming is only used when the interface is not
84 Each of the host's network addresses
85 is specified at boot time with an
90 interface employs the address resolution protocol described in
92 to dynamically map between Internet and Ethernet addresses on the local
97 interface is brought up, by default, it will attempt to auto-negotiate the
98 link speed and duplex mode.
99 The speeds, in order of attempt, are:
100 100Mb/s Full Duplex, 100Mb/s Half Duplex, 10 Mb/s Full Duplex, and
105 supports several media types, which are selected via the
108 The supported media types are:
109 .Bl -tag -width indent
110 .It Cm media autoselect
111 Attempt to autoselect the media type (default)
112 .It Cm media 100baseTX mediaopt full-duplex
113 Use 100baseTX, full duplex
114 .It Cm media 100baseTX Op Cm mediaopt half-duplex
115 Use 100baseTX, half duplex
116 .It Cm media 10baseT mediaopt full-duplex
117 Use 10baseT, full duplex
118 .It Cm media 10baseT Op Cm mediaopt half-duplex
119 Use 10baseT, half duplex
124 driver supports the following cards:
126 .Bl -bullet -offset indent -compact
153 driver first appeared in