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34 .Dd September 13, 2004
39 .Nd "AMD PCnet/PCI Fast Ethernet device driver"
46 driver provides support for PCI Ethernet adapters and embedded
47 controllers based on the AMD PCnet/FAST, PCnet/FAST+, PCnet/FAST III,
48 PCnet/PRO and PCnet/Home Ethernet controller chips.
49 Supported NIC's include the Allied Telesyn AT-2700 familly.
51 The PCnet/PCI chips include a 100Mbps Ethernet MAC and support
52 both a serial and MII-compliant transceiver interface.
53 They use a bus master DMA and a scatter/gather descriptor scheme.
54 The AMD chips provide a mechanism for zero-copy receive,
55 providing good performance in server environments.
56 Receive address filtering is provided using a single perfect filter entry
57 for the station address and a 64-bit multicast hash table.
61 driver supports the following media types:
63 .Bl -tag -width 10baseTXUTP
65 Enable autoselection of the media type and options.
66 The user can manually override
67 the autoselected mode by adding media options to
74 option can also be used to select either
80 Set 100Mbps (Fast Ethernet) operation.
84 option can also be used to select either
93 driver supports the following media options:
95 .Bl -tag -width full-duplex
97 Force full duplex operation
99 Force half duplex operation.
102 For more information on configuring this device, see
107 driver supports adapters and embedded controllers based on the AMD PCnet/FAST,
108 PCnet/FAST+, PCnet/FAST III, PCnet/PRO and PCnet/Home Fast Ethernet chips:
112 AMD Am53C974/Am79C970/Am79C974 PCnet-PCI
114 AMD Am79C970A PCnet-PCI II
116 AMD Am79C971 PCnet-FAST
118 AMD Am79C972 PCnet-FAST+
120 AMD Am79C973/Am79C975 PCnet-FAST III
122 AMD Am79C976 PCnet-PRO
124 AMD PCnet/Home HomePNA
126 Allied-Telesis LA-PCI
128 Contec C-NET(98)S (PC-98)
134 .It "pcn%d: couldn't map ports/memory"
135 A fatal initialization error has occurred.
136 .It "pcn%d: couldn't map interrupt"
137 A fatal initialization error has occurred.
138 .It "pcn%d: watchdog timeout"
139 The device has stopped responding to the network, or there is a problem with
140 the network connection (e.g.\& a cable fault).
141 .It "pcn%d: no memory for rx list"
142 The driver failed to allocate an mbuf for the receiver ring.
143 .It "pcn%d: no memory for tx list"
144 The driver failed to allocate an mbuf for the transmitter ring when
145 allocating a pad buffer or collapsing an mbuf chain into a cluster.
146 .It "pcn%d: chip is in D3 power state -- setting to D0"
147 This message applies only to adapters which support power
149 Some operating systems place the controller in low power
150 mode when shutting down, and some PCI BIOSes fail to bring the chip
151 out of this state before configuring it.
152 The controller loses all of
153 its PCI configuration in the D3 state, so if the BIOS does not set
154 it back to full power mode in time, it will not be able to configure it
156 The driver tries to detect this condition and bring
157 the adapter back to the D0 (full power) state, but this may not be
158 enough to return the driver to a fully operational condition.
160 you see this message at boot time and the driver fails to attach
161 the device as a network interface, you will have to perform a
162 warm boot to have the device properly configured.
164 Note that this condition only occurs when warm booting from another
166 If you power down your system prior to booting
168 the card should be configured correctly.
177 .%T AMD PCnet/FAST, PCnet/FAST+ and PCnet/Home datasheets
178 .%O http://www.amd.com
183 device driver first appeared in
188 driver was written by
189 .An Bill Paul Aq wpaul@osd.bsdi.com .