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 $
39 .Nd "National Semiconductor PCI gigabit ethernet adapter driver"
46 driver provides support for various NICs based on the National Semiconductor
47 DP83820 and DP83821 gigabit ethernet controller chips, including the
52 SMC EZ Card 1000 (SMC9462TX)
56 Asante FriendlyNet GigaNIX 1000TA and 1000TPC
60 LinkSys EG1032 (32-bit PCI) and EG1064 (64-bit PCI)
62 Surecom Technology EP-320G-TX
69 All of these NICs are capable of 10, 100 and 1000mbps speeds over CAT5
71 The DP83820 supports TBI (ten bit interface) and GMII
72 transceivers, which means it can be used with either copper or 1000baseX
74 The DP83820 supports TCP/IP checksum offload and
75 VLAN tagging/insertion as well as a 2048-bit multicast hash filter
76 and up to 4 pattern match buffers.
78 Most cards also use the DP83861 10/100/1000 copper gigabit transceiver
79 chip, which supports autonegotiation of 10, 100 and 1000mbps modes in
82 The DP83820 also supports jumbo frames, which can be configured
83 via the interface MTU setting.
84 Selecting an MTU larger than 1500 bytes with the
86 utility configures the adapter to receive and transmit jumbo frames.
87 Using jumbo frames can greatly improve performance for certain tasks,
88 such as file transfers and data streaming.
92 driver supports the following media types:
93 .Bl -tag -width 10baseTXUTP
95 Enable autoselection of the media type and options.
96 The user can manually override
97 the autoselected mode by adding media options to
100 Set 10Mbps operation.
104 option can also be used to select either
110 Set 100Mbps (fast ethernet) operation.
114 option can also be used to select either
120 Set 1000baseT operation over twisted pair.
126 Set 1000Mbps (gigabit ethernet) operation.
136 driver supports the following media options:
137 .Bl -tag -width full-duplex
139 Force full duplex operation.
141 Force half duplex operation.
146 driver also supports one special link option for 1000baseT cards:
147 .Bl -tag -width link0
149 With 1000baseT cards, establishing a link between two ports requires
150 that one port be configured as a master and the other a slave.
151 With autonegotiation,
152 the master/slave settings will be chosen automatically.
153 However when manually selecting the link state, it is necessary to
154 force one side of the link to be a master and the other a slave.
157 driver configures the ports as slaves by default.
162 will set a port as a master instead.
165 For more information on configuring this device, see
173 .It "nge%d: couldn't map memory"
174 A fatal initialization error has occurred.
175 .It "nge%d: couldn't map ports"
176 A fatal initialization error has occurred.
177 .It "nge%d: couldn't map interrupt"
178 A fatal initialization error has occurred.
179 .It "nge%d: no memory for softc struct!"
180 The driver failed to allocate memory for per-device instance information
181 during initialization.
182 .It "nge%d: failed to enable memory mapping!"
183 The driver failed to initialize PCI shared memory mapping.
185 happen if the card is not in a bus-master slot.
186 .It "nge%d: no memory for jumbo buffers!"
187 The driver failed to allocate memory for jumbo frames during
189 .It "nge%d: watchdog timeout"
190 The device has stopped responding to the network, or there is a problem with
191 the network connection (cable).
203 .%T National Semiconductor DP83820 datasheet
204 .%O http://www.national.com
207 .%T National Semiconductor DP83861 datasheet
208 .%O http://www.national.com
213 device driver first appeared in
218 driver was written by
219 .An Bill Paul Aq Mt wpaul@bsdi.com .