xref: /freebsd/share/man/man4/nge.4 (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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2.\" Copyright (c) 1997, 1998, 1999, 2000, 2001
3.\"	Bill Paul <wpaul@bsdi.com>. All rights reserved.
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32.\" $FreeBSD$
33.\"
34.Dd January 14, 2006
35.Dt NGE 4
36.Os
37.Sh NAME
38.Nm nge
39.Nd "National Semiconductor PCI Gigabit Ethernet adapter driver"
40.Sh SYNOPSIS
41To compile this driver into the kernel,
42place the following lines in your
43kernel configuration file:
44.Bd -ragged -offset indent
45.Cd "device miibus"
46.Cd "device nge"
47.Ed
48.Pp
49Alternatively, to load the driver as a
50module at boot time, place the following line in
51.Xr loader.conf 5 :
52.Bd -literal -offset indent
53if_nge_load="YES"
54.Ed
55.Sh DESCRIPTION
56The
57.Nm
58driver provides support for various NICs based on the National Semiconductor
59DP83820 and DP83821 Gigabit Ethernet controller chips.
60.Pp
61The DP83820 supports TBI (ten bit interface) and GMII
62transceivers, which means it can be used with either copper or 1000baseX
63fiber applications.
64The DP83820 supports TCP/IP checksum offload and
65VLAN tagging/insertion as well as a 2048-bit multicast hash filter
66and up to 4 pattern match buffers.
67.Pp
68Most cards also use the DP83861 10/100/1000 copper gigabit transceiver
69chip, which supports autonegotiation of 10, 100 and 1000Mbps modes in
70full or half duplex.
71.Pp
72The DP83820 also supports jumbo frames, which can be configured
73via the interface MTU setting.
74Selecting an MTU larger than 1500 bytes with the
75.Xr ifconfig 8
76utility configures the adapter to receive and transmit jumbo frames.
77Using jumbo frames can greatly improve performance for certain tasks,
78such as file transfers and data streaming.
79.Pp
80The
81.Nm
82driver supports the following media types:
83.Bl -tag -width 10baseTXUTP
84.It Cm autoselect
85Enable autoselection of the media type and options.
86The user can manually override
87the autoselected mode by adding media options to
88.Xr rc.conf 5 .
89.It Cm 10baseT/UTP
90Set 10Mbps operation.
91The
92.Xr ifconfig 8
93.Ic mediaopt
94option can also be used to select either
95.Cm full-duplex
96or
97.Cm half-duplex
98modes.
99.It Cm 100baseTX
100Set 100Mbps (Fast Ethernet) operation.
101The
102.Xr ifconfig 8
103.Ic mediaopt
104option can also be used to select either
105.Cm full-duplex
106or
107.Cm half-duplex
108modes.
109.It Cm 1000baseTX
110Set 1000baseTX operation over twisted pair.
111.Cm full-duplex
112and
113.Cm half-duplex
114modes are supported.
115.It Cm 1000baseSX
116Set 1000Mbps (Gigabit Ethernet) operation.
117Both
118.Cm full-duplex
119and
120.Cm half-duplex
121modes are supported.
122.El
123.Pp
124The
125.Nm
126driver supports the following media options:
127.Bl -tag -width full-duplex
128.It Cm full-duplex
129Force full duplex operation.
130.It Cm half-duplex
131Force half duplex operation.
132.El
133.Pp
134The
135.Nm
136driver also supports one special link option for 1000baseTX cards:
137.Bl -tag -width link0
138.It Cm link0
139With 1000baseTX cards, establishing a link between two ports requires
140that one port be configured as a master and the other a slave.
141With autonegotiation,
142the master/slave settings will be chosen automatically.
143However when manually selecting the link state, it is necessary to
144force one side of the link to be a master and the other a slave.
145The
146.Nm
147driver configures the ports as slaves by default.
148Setting the
149.Cm link0
150flag with
151.Xr ifconfig 8
152will set a port as a master instead.
153.El
154.Pp
155For more information on configuring this device, see
156.Xr ifconfig 8 .
157.Sh HARDWARE
158The
159.Nm
160driver supports National Semiconductor DP83820 and DP83821 based
161Gigabit Ethernet adapters including:
162.Pp
163.Bl -bullet -compact
164.It
165Addtron AEG320T
166.It
167Ark PC SOHO-GA2500T (32-bit PCI) and SOHO-GA2000T (64-bit PCI)
168.It
169Asante FriendlyNet GigaNIX 1000TA and 1000TPC
170.It
171D-Link DGE-500T
172.It
173Netgear GA621
174.It
175Netgear GA622T
176.It
177SMC EZ Card 1000 (SMC9462TX)
178.It
179Surecom Technology EP-320G-TX
180.It
181Trendware TEG-PCITX (32-bit PCI) and TEG-PCITX2 (64-bit PCI)
182.El
183.Sh DIAGNOSTICS
184.Bl -diag
185.It "nge%d: couldn't map memory"
186A fatal initialization error has occurred.
187.It "nge%d: couldn't map ports"
188A fatal initialization error has occurred.
189.It "nge%d: couldn't map interrupt"
190A fatal initialization error has occurred.
191.It "nge%d: no memory for softc struct!"
192The driver failed to allocate memory for per-device instance information
193during initialization.
194.It "nge%d: failed to enable memory mapping!"
195The driver failed to initialize PCI shared memory mapping.
196This might
197happen if the card is not in a bus-master slot.
198.It "nge%d: no memory for jumbo buffers!"
199The driver failed to allocate memory for jumbo frames during
200initialization.
201.It "nge%d: watchdog timeout"
202The device has stopped responding to the network, or there is a problem with
203the network connection (cable).
204.El
205.Sh SEE ALSO
206.Xr arp 4 ,
207.Xr miibus 4 ,
208.Xr netintro 4 ,
209.Xr ng_ether 4 ,
210.Xr polling 4 ,
211.Xr vlan 4 ,
212.Xr ifconfig 8
213.Rs
214.%T National Semiconductor DP83820 datasheet
215.%O http://www.national.com
216.Re
217.Rs
218.%T National Semiconductor DP83861 datasheet
219.%O http://www.national.com
220.Re
221.Sh HISTORY
222The
223.Nm
224device driver first appeared in
225.Fx 4.4 .
226.Sh AUTHORS
227The
228.Nm
229driver was written by
230.An Bill Paul Aq wpaul@bsdi.com .
231