1 .\" Copyright (c) 1997, 1998
2 .\" Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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38 .Nd "3Com Etherlink XL and Fast Etherlink XL Ethernet device driver"
45 driver provides support for PCI Ethernet adapters and embedded
46 controllers based on the 3Com "boomerang," "cyclone," "hurricane"
47 and "tornado" bus-master Etherlink XL chips.
49 The Etherlink XL chips support built-in 10baseT, 10base2 and 10base5
50 transceivers as well as an MII bus for externally attached PHY
52 The 3c905 series typically uses a National Semiconductor
53 NS 83840A 10/100 PHY for 10/100 Mbps support in full or half-duplex.
54 The 3c905B adapters have built-in autonegotiation logic mapped onto
55 the MII for compatibility with previous drivers.
57 adapters such as the 3c905-TX and 3c905B-TX are capable of 10 or
58 100Mbps data rates in either full or half duplex and can be manually
59 configured for any supported mode or automatically negotiate the highest
60 possible mode with a link partner.
64 driver supports the following media types:
66 .Bl -tag -width xxxxxxxxxxxxxxxxxxxx
68 Enable autoselection of the media type and options.
70 option is only available with the 3c905 and 3c905B adapters with
71 external PHYs or built-in autonegotiation logic.
73 the driver will choose the mode specified in the EEPROM.
75 change this by adding media options to the
82 option can also be used to select either
88 Set 100Mbps (Fast Ethernet) operation.
91 option can also be used to select either
97 Enable AUI transceiver (available only on COMBO cards).
99 Enable BNC coax transceiver (available only on COMBO cards).
104 driver supports the following media options:
106 .Bl -tag -width xxxxxxxxxxxxxxxxxxxx
108 Force full duplex operation
110 Force half duplex operation.
113 Note that the 100baseTX media type is only available if supported
115 For more information on configuring this device, see
120 driver supports the following hardware:
150 3Com 3c980, 3c980B, and 3c980C server adapters
152 3Com 3cSOHO100-TX OfficeConnect adapters
154 3Com 3c450 HomeConnect adapters
156 3Com 3c555, 3c556 and 3c556B mini-PCI adapters
158 3Com 3C3SH573BT, 3C575TX, 3CCFE575BT, 3CXFE575BT, 3CCFE575CT, 3CXFE575CT,
159 3CCFEM656, 3CCFEM656B, and 3CCFEM656C, 3CXFEM656, 3CXFEM656B, and
160 3CXFEM656C CardBus adapters
162 3Com 3c905-TX, 3c905B-TX 3c905C-TX, 3c920B-EMB, and 3c920B-EMB-WNM embedded adapters
165 Both the 3C656 family of CardBus cards and the 3C556 family of MiniPCI
166 cards have a built-in proprietary modem.
171 driver supports this modem.
174 .It "xl%d: couldn't map memory"
175 A fatal initialization error has occurred.
176 .It "xl%d: couldn't map interrupt"
177 A fatal initialization error has occurred.
178 .It "xl%d: device timeout"
179 The device has stopped responding to the network, or there is a problem with
180 the network connection (cable).
181 .It "xl%d: no memory for rx list"
182 The driver failed to allocate an mbuf for the receiver ring.
183 .It "xl%d: no memory for tx list"
184 The driver failed to allocate an mbuf for the transmitter ring when
185 allocating a pad buffer or collapsing an mbuf chain into a cluster.
186 .It "xl%d: command never completed!"
187 Some commands issued to the 3c90x ASIC take time to complete: the
188 driver is supposed to wait until the 'command in progress' bit in
189 the status register clears before continuing.
190 In rare instances, this
192 To avoid getting caught in an infinite wait loop,
193 the driver only polls the bit for a finite number of times before
194 giving up, at which point it issues this message.
196 be printed during driver initialization on slower machines.
198 see this message but the driver continues to function normally, the
199 message can probably be ignored.
200 .It "xl%d: chip is in D3 power state -- setting to D0"
201 This message applies only to 3c905B adapters, which support power
203 Some operating systems place the 3c905B in low power
204 mode when shutting down, and some PCI BIOSes fail to bring the chip
205 out of this state before configuring it.
206 The 3c905B loses all of
207 its PCI configuration in the D3 state, so if the BIOS does not set
208 it back to full power mode in time, it will not be able to configure it
210 The driver tries to detect this condition and bring
211 the adapter back to the D0 (full power) state, but this may not be
212 enough to return the driver to a fully operational condition.
214 you see this message at boot time and the driver fails to attach
215 the device as a network interface, you will have to perform second
216 warm boot to have the device properly configured.
218 Note that this condition only occurs when warm booting from another
220 If you power down your system prior to booting
222 the card should be configured correctly.
223 .It "xl%d: WARNING: no media options bits set in the media options register!"
224 This warning may appear when using the driver on some Dell Latitude
225 docking stations with built-in 3c905-TX adapters.
227 reason, the 'MII available' bit in the media options register on
228 this particular equipment is not set, even though it should be (the
229 3c905-TX always uses an external PHY transceiver).
231 attempt to guess the proper media type based on the PCI device ID
233 The driver makes a lot of noise about this condition because
234 the author considers it a manufacturing defect.
248 device driver first appeared in
253 driver was written by
254 .An Bill Paul Aq wpaul@ctr.columbia.edu .