726ff6a158
PCI fast ethernet adapters, plus man pages.
if_pn.c: Netgear FA310TX model D1, LinkSys LNE100TX, Matrox FastNIC 10/100,
various other PNIC devices
if_mx.c: NDC Communications SOHOware SFA100 (Macronix 98713A), various
other boards based on the Macronix 98713, 98713A, 98715, 98715A
and 98725 chips
if_vr.c: D-Link DFE530-TX, other boards based on the VIA Rhine and
Rhine II chips (note: the D-Link and certain other cards
that actually use a Rhine II chip still return the PCI
device ID of the Rhine I. I don't know why, and it doesn't
really matter since the driver treats both chips the same
anyway.)
if_wb.c: Trendware TE100-PCIE and various other cards based on the
Winbond W89C840F chip (the Trendware card is identical to
the sample boards Winbond sent me, so who knows how many
clones there are running around)
All drivers include support for ifmedia, BPF and hardware multicast
filtering.
Also updated GENERIC, LINT, RELNOTES.TXT, userconfig and
sysinstall device list.
I also have a driver for the ASIX AX88140A in the works.
165 lines
6.0 KiB
Groff
165 lines
6.0 KiB
Groff
.\" Copyright (c) 1997, 1998
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.\" Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by Bill Paul.
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.\" 4. Neither the name of the author nor the names of any co-contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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.\" THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $Id: vr.4,v 1.1 1998/11/22 18:36:02 wpaul Exp $
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.\"
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.Dd November 22, 1998
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.Dt VR 4 i386
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.Os FreeBSD
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.Sh NAME
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.Nm vr
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.Nd
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VIA Technologies VT3043 and VT86C100A ethernet device driver
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.Sh SYNOPSIS
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.Cd "device vr0"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for PCI ethernet adapters and embedded
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controllers based on the VIA Technologies VT3043 Rhine I and
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VT86C100A Rhine II fast ethernet controller chips. This includes
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the D-Link DFE530-TX and various other commodity fast ethernet
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cards.
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.Pp
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The VIA Rhine chips use bus master DMA and have a software interface
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designed to resemble that of the DEC 21x4x "tulip" chips. The major
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differences are that the receive filter in the Rhine chips is
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much simpler and is programmed through registers rather than by
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downloading a special setup frame through the transmit DMA engine,
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and that transmit and receive DMA buffers must be longword
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aligned. The Rhine chips are meant to be interfaced with external
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physical layer devices via an MII bus. They support both
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10 and 100Mbps speeds in either full or half duplex.
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.Pp
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The
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.Nm
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driver supports the following media types:
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.Pp
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.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
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.It autoselect
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Enable autoselection of the media type and options.
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The user can manually override
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the autoselected mode by adding media options to the
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.Pa /etc/rc.conf
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fine.
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.It 10baseT/UTP
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Set 10Mbps operation. The
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.Ar mediaopt
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option can also be used to select either
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.Ar full-duplex
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or
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.Ar half-duplex modes.
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.It 100baseTX
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Set 100Mbps (fast ethernet) operation. The
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.Ar mediaopt
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option can also be used to select either
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.Ar full-duplex
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or
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.Ar half-duplex
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modes.
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.El
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.Pp
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The
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.Nm
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driver supports the following media options:
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.Pp
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.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
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.It full-duplex
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Force full duplex operation
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.It half-duplex
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Force half duplex operation.
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.El
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.Pp
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Note that the 100baseTX media type is only available if supported
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by the adapter.
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For more information on configuring this device, see
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.Xr ifconfig 8 .
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "vr%d: couldn't map memory"
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A fatal initialization error has occurred.
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.It "vr%d: couldn't map interrupt"
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A fatal initialization error has occurred.
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.It "vr%d: watchdog timeout"
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The device has stopped responding to the network, or there is a problem with
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the network connection (cable).
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.It "vr%d: no memory for rx list"
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The driver failed to allocate an mbuf for the receiver ring.
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.It "vr%d: no memory for tx list"
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The driver fauled to allocate an mbuf for the transmitter ring when
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allocating a pad buffer or collapsing an mbuf chain into a cluster.
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.It "vr%d: chip is in D3 power state -- setting to D0"
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This message applies only to adapters which support power
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management. Some operating systems place the controller in low power
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mode when shutting down, and some PCI BIOSes fail to bring the chip
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out of this state before configuring it. The controller loses all of
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its PCI configuration in the D3 state, so if the BIOS does not set
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it back to full power mode in time, it won't be able to configure it
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correctly. The driver tries to detect this condition and bring
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the adapter back to the D0 (full power) state, but this may not be
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enough to return the driver to a fully operational condition. If
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you see this message at boot time and the driver fails to attach
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the device as a network interface, you will have to perform second
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warm boot to have the device properly configured.
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.Pp
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Note that this condition only occurs when warm booting from another
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operating system. If you power down your system prior to booting
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.Fx ,
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the card should be configured correctly.
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.El
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.Sh SEE ALSO
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.Xr arp 4 ,
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.Xr netintro 4 ,
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.Xr ifconfig 8
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.Rs
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.%T The VIA Technologies VT86C100A data sheet
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.%O http://www.via.com.tw
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.Re
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.Sh HISTORY
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The
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.Nm
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device driver first appeared in
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.Fx 3.0 .
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.Sh AUTHOR
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The
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.Nm
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driver was written by
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.An Bill Paul Aq wpaul@ctr.columbia.edu .
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.Sh BUGS
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The
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.Nm
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driver always copies transmit mbuf chains into longword-aligned
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buffers prior to transmission in order to pacify the Rhine chips.
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If buffers are not aligned correctly, the chip will round the
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supplied buffer address and begin DMAing from the wrong location.
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This buffer copying impairs transmit performance on slower systems but can't
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be avoided. On faster machines (e.g. a Pentium II), the performance
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impact is much less noticable.
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