216 lines
7.8 KiB
Groff
216 lines
7.8 KiB
Groff
.\" Copyright (c) 1997, 1998
|
|
.\" Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by Bill Paul.
|
|
.\" 4. Neither the name of the author nor the names of any co-contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
|
|
.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
|
.\" THE POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd August 16, 1998
|
|
.Dt XL 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm xl
|
|
.Nd "3Com Etherlink XL and Fast Etherlink XL ethernet device driver"
|
|
.Sh SYNOPSIS
|
|
.Cd "device miibus"
|
|
.Cd "device xl"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
driver provides support for PCI ethernet adapters and embedded
|
|
controllers based on the 3Com "boomerang," "cyclone," "hurricane"
|
|
and "tornado" bus-master Etherlink XL chips.
|
|
This includes the 3c900-TPO, 3c900-COMBO, 3c905-TX and
|
|
3c905-T4; the 3c900B-TPO, 3c900B-TPC, 3c900B-FL, 3c900B-COMBO, 3c905B-T4,
|
|
3c905B-TX, 3c905B-FX, 3c905B-COMBO and 3c905C-TX; the 3c980, 3c980B
|
|
and 3c980C server adapters; the 3cSOHO100-TX
|
|
OfficeConnect and 3c450 HomeConnect adapters; the 3c555, 3c556 and
|
|
3c556B mini-PCI adapters; the 3C575TX, 3CCFE575BT, 3CXFE575BT,
|
|
3CCFE575CT, 3CXFE575CT, 3CCFEM656, 3CCFEM656B, and 3CCFEM656C,
|
|
3CXFEM656, 3CXFEM656B, and 3CXFEM656C CardBus
|
|
adapters; and the embedded 3c905-TX, 3c905B-TX
|
|
3c905C-TX, and 3c920B-EMB ethernet hardware in certain Dell Optiplex and Dell
|
|
Precision desktop machines, certain Dell Latitude laptop docking
|
|
stations, and various Nvidia NForce based motherboards.
|
|
.Pp
|
|
The Etherlink XL chips support built-in 10baseT, 10base2 and 10base5
|
|
transceivers as well as an MII bus for externally attached PHY
|
|
transceivers.
|
|
The 3c905 series typically uses a National Semiconductor
|
|
NS 83840A 10/100 PHY for 10/100 Mbps support in full or half-duplex.
|
|
The 3c905B adapters have built-in autonegotiation logic mapped onto
|
|
the MII for compatibility with previous drivers.
|
|
Fast Etherlink XL
|
|
adapters such as the 3c905-TX and 3c905B-TX are capable of 10 or
|
|
100Mbps data rates in either full or half duplex and can be manually
|
|
configured for any supported mode or automatically negotiate the highest
|
|
possible mode with a link partner.
|
|
.Pp
|
|
The
|
|
.Nm
|
|
driver supports the following media types:
|
|
.Pp
|
|
.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
|
|
.It autoselect
|
|
Enable autoselection of the media type and options.
|
|
Note that this
|
|
option is only available with the 3c905 and 3c905B adapters with
|
|
external PHYs or built-in autonegotiation logic.
|
|
For 3c900 adapters,
|
|
the driver will choose the mode specified in the EEPROM.
|
|
The user can
|
|
change this by adding media options to the
|
|
.Pa /etc/rc.conf
|
|
file.
|
|
.It 10baseT/UTP
|
|
Set 10Mbps operation.
|
|
The
|
|
.Ar mediaopt
|
|
option can also be used to select either
|
|
.Ar full-duplex
|
|
or
|
|
.Ar half-duplex
|
|
modes.
|
|
.It 100baseTX
|
|
Set 100Mbps (fast ethernet) operation.
|
|
The
|
|
.Ar mediaopt
|
|
option can also be used to select either
|
|
.Ar full-duplex
|
|
or
|
|
.Ar half-duplex
|
|
modes.
|
|
.It 10base5/AUI
|
|
Enable AUI transceiver (available only on COMBO cards).
|
|
.It 10base2/BNC
|
|
Enable BNC coax transceiver (available only on COMBO cards).
|
|
.El
|
|
.Pp
|
|
The
|
|
.Nm
|
|
driver supports the following media options:
|
|
.Pp
|
|
.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
|
|
.It full-duplex
|
|
Force full duplex operation
|
|
.It half-duplex
|
|
Force half duplex operation.
|
|
.El
|
|
.Pp
|
|
Note that the 100baseTX media type is only available if supported
|
|
by the adapter.
|
|
For more information on configuring this device, see
|
|
.Xr ifconfig 8 .
|
|
.Pp
|
|
Both the 3C656 family of CardBus cards and the 3C556 family of MiniPCI
|
|
cards have a built-in proprietary modem.
|
|
Neither the
|
|
.Nm
|
|
driver nor any other
|
|
.Fx
|
|
driver supports this modem.
|
|
.Sh DIAGNOSTICS
|
|
.Bl -diag
|
|
.It "xl%d: couldn't map memory"
|
|
A fatal initialization error has occurred.
|
|
.It "xl%d: couldn't map interrupt"
|
|
A fatal initialization error has occurred.
|
|
.It "xl%d: device timeout"
|
|
The device has stopped responding to the network, or there is a problem with
|
|
the network connection (cable).
|
|
.It "xl%d: no memory for rx list"
|
|
The driver failed to allocate an mbuf for the receiver ring.
|
|
.It "xl%d: no memory for tx list"
|
|
The driver failed to allocate an mbuf for the transmitter ring when
|
|
allocating a pad buffer or collapsing an mbuf chain into a cluster.
|
|
.It "xl%d: command never completed!"
|
|
Some commands issued to the 3c90x ASIC take time to complete: the
|
|
driver is supposed to wait until the 'command in progress' bit in
|
|
the status register clears before continuing.
|
|
In rare instances, this
|
|
bit may not clear.
|
|
To avoid getting caught in an infinite wait loop,
|
|
the driver only polls the bit for a finite number of times before
|
|
giving up, at which point it issues this message.
|
|
This message may
|
|
be printed during driver initialization on slower machines.
|
|
If you
|
|
see this message but the driver continues to function normally, the
|
|
message can probably be ignored.
|
|
.It "xl%d: chip is in D3 power state -- setting to D0"
|
|
This message applies only to 3c905B adapters, which support power
|
|
management.
|
|
Some operating systems place the 3c905B in low power
|
|
mode when shutting down, and some PCI BIOSes fail to bring the chip
|
|
out of this state before configuring it.
|
|
The 3c905B loses all of
|
|
its PCI configuration in the D3 state, so if the BIOS does not set
|
|
it back to full power mode in time, it won't be able to configure it
|
|
correctly.
|
|
The driver tries to detect this condition and bring
|
|
the adapter back to the D0 (full power) state, but this may not be
|
|
enough to return the driver to a fully operational condition.
|
|
If
|
|
you see this message at boot time and the driver fails to attach
|
|
the device as a network interface, you will have to perform second
|
|
warm boot to have the device properly configured.
|
|
.Pp
|
|
Note that this condition only occurs when warm booting from another
|
|
operating system.
|
|
If you power down your system prior to booting
|
|
.Fx ,
|
|
the card should be configured correctly.
|
|
.It "xl%d: WARNING: no media options bits set in the media options register!"
|
|
This warning may appear when using the driver on some Dell Latitude
|
|
docking stations with built-in 3c905-TX adapters.
|
|
For whatever the
|
|
reason, the 'MII available' bit in the media options register on
|
|
this particular equipment is not set, even though it should be (the
|
|
3c905-TX always uses an external PHY transceiver). The driver will
|
|
attempt to guess the proper media type based on the PCI device ID
|
|
word.
|
|
The driver makes a lot of noise about this condition because
|
|
the author considers it a manufacturing defect.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr arp 4 ,
|
|
.Xr miibus 4 ,
|
|
.Xr netintro 4 ,
|
|
.Xr ng_ether 4 ,
|
|
.Xr ifconfig 8
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
device driver first appeared in
|
|
.Fx 3.0 .
|
|
.Sh AUTHORS
|
|
The
|
|
.Nm
|
|
driver was written by
|
|
.An Bill Paul Aq wpaul@ctr.columbia.edu .
|