1 .\" Copyright (c) 2001 Wind River Systems
2 .\" Copyright (c) 1997, 1998, 1999, 2000, 2001
3 .\" Bill Paul <wpaul@bsdi.com>. All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
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15 .\" This product includes software developed by Bill Paul.
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32 .\" $FreeBSD: src/share/man/man4/nge.4,v 1.4.2.6 2002/08/15 16:35:37 ambrisko Exp $
33 .\" $DragonFly: src/share/man/man4/nge.4,v 1.6 2007/05/13 18:33:56 swildner Exp $
40 .Nd "National Semiconductor PCI gigabit ethernet adapter driver"
47 driver provides support for various NICs based on the National Semiconductor
48 DP83820 and DP83821 gigabit ethernet controller chips, including the
53 SMC EZ Card 1000 (SMC9462TX)
57 Asante FriendlyNet GigaNIX 1000TA and 1000TPC
61 LinkSys EG1032 (32-bit PCI) and EG1064 (64-bit PCI)
63 Surecom Technology EP-320G-TX
70 All of these NICs are capable of 10, 100 and 1000mbps speeds over CAT5
72 The DP83820 supports TBI (ten bit interface) and GMII
73 transceivers, which means it can be used with either copper or 1000baseX
75 The DP83820 supports TCP/IP checksum offload and
76 VLAN tagging/insertion as well as a 2048-bit multicast hash filter
77 and up to 4 pattern match buffers.
79 Most cards also use the DP83861 10/100/1000 copper gigabit transceiver
80 chip, which supports autonegotiation of 10, 100 and 1000mbps modes in
83 The DP83820 also supports jumbo frames, which can be configured
84 via the interface MTU setting.
85 Selecting an MTU larger than 1500 bytes with the
87 utility configures the adapter to receive and transmit jumbo frames.
88 Using jumbo frames can greatly improve performance for certain tasks,
89 such as file transfers and data streaming.
93 driver supports the following media types:
94 .Bl -tag -width 10baseTXUTP
96 Enable autoselection of the media type and options.
97 The user can manually override
98 the autoselected mode by adding media options to
101 Set 10Mbps operation.
105 option can also be used to select either
111 Set 100Mbps (fast ethernet) operation.
115 option can also be used to select either
121 Set 1000baseTX operation over twisted pair.
127 Set 1000Mbps (gigabit ethernet) operation.
137 driver supports the following media options:
138 .Bl -tag -width full-duplex
140 Force full duplex operation.
142 Force half duplex operation.
147 driver also supports one special link option for 1000baseTX cards:
148 .Bl -tag -width link0
150 With 1000baseTX cards, establishing a link between two ports requires
151 that one port be configured as a master and the other a slave.
152 With autonegotiation,
153 the master/slave settings will be chosen automatically.
154 However when manually selecting the link state, it is necessary to
155 force one side of the link to be a master and the other a slave.
158 driver configures the ports as slaves by default.
163 will set a port as a master instead.
166 For more information on configuring this device, see
170 .It "nge%d: couldn't map memory"
171 A fatal initialization error has occurred.
172 .It "nge%d: couldn't map ports"
173 A fatal initialization error has occurred.
174 .It "nge%d: couldn't map interrupt"
175 A fatal initialization error has occurred.
176 .It "nge%d: no memory for softc struct!"
177 The driver failed to allocate memory for per-device instance information
178 during initialization.
179 .It "nge%d: failed to enable memory mapping!"
180 The driver failed to initialize PCI shared memory mapping.
182 happen if the card is not in a bus-master slot.
183 .It "nge%d: no memory for jumbo buffers!"
184 The driver failed to allocate memory for jumbo frames during
186 .It "nge%d: watchdog timeout"
187 The device has stopped responding to the network, or there is a problem with
188 the network connection (cable).
200 .%T National Semiconductor DP83820 datasheet
201 .%O http://www.national.com
204 .%T National Semiconductor DP83861 datasheet
205 .%O http://www.national.com
210 device driver first appeared in
215 driver was written by
216 .An Bill Paul Aq wpaul@bsdi.com .