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.\" $OpenBSD: bce.4,v 1.13 2009/02/17 21:26:08 kettenis Exp $
.\" $NetBSD: bce.4,v 1.2 2003/10/05 11:58:36 wiz Exp $
.\"
.\" Copyright (c) 2003 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Thomas Klausner.
.\"
.\" 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.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 THE FOUNDATION OR CONTRIBUTORS
.\" 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.
.\"
.Dd $Mdocdate: February 17 2009 $
.Dt BCE 4
.Os
.Sh NAME
.Nm bce
.Nd Broadcom BCM4401 10/100 Ethernet device
.Sh SYNOPSIS
.Cd "bce* at pci?"
.Cd "bmtphy* at mii?"
.Sh DESCRIPTION
The
.Nm
provides support for the Broadcom BCM4401 10/100 Ethernet card.
.Pp
The following media types and options (as given to
.Xr ifconfig 8 )
are supported:
.Bl -tag -width xxx -offset indent
.It Cm media No autoselect
Enable autoselection of the media type and options (default).
.It Cm media No 100baseTX Cm mediaopt No full-duplex
Set 100Mbps (Fast Ethernet) operation and force full-duplex mode.
.It Cm media No 100baseTX Cm mediaopt No half-duplex
Set 100Mbps (Fast Ethernet) operation and force half-duplex mode.
.It Cm media No 10baseT Cm mediaopt No full-duplex
Set 10Mbps operation and force full-duplex.
.It Cm media No 10baseT Cm mediaopt No half-duplex
Set 10Mbps operation and force half-duplex.
.El
.Pp
If no media options are present, the
.Nm
driver places the card into autoselect mode.
.Sh DIAGNOSTICS
.Bl -diag
.It "bce%d: failed to enable memory mapping!"
A fatal initialization error has occurred.
.It "bce%d: unable to find mem space"
A fatal initialization error has occurred.
.It "bce%d: unable to wake up from power state D%d"
The card has lost its configuration data during power save mode.
.It "bce%d: couldn't map interrupt"
A fatal initialization error has occurred.
.It "bce%d: couldn't establish interrupt"
A fatal initialization error has occurred.
.It "bce%d: unable to alloc space for ring descriptors, error = %d"
A fatal initialization error has occurred.
.It "bce%d: unable to map DMA buffers, error = %d"
A fatal initialization error has occurred.
.It "bce%d: unable to create ring DMA map, error = %d"
A fatal initialization error has occurred.
.It "bce%d: unable to create tx DMA map, error = %d"
A fatal initialization error has occurred.
.It "bce%d: unable to create rx DMA map, error = %d"
A fatal initialization error has occurred.
.It "bce%d: Tx packet consumes too many DMA segments, dropping..."
An outgoing packet didn't fit in the allocated number of segments.
.It "bce%d: unable to load Tx buffer, error = %d"
Short on resources when transmitting a packet, it will be retried later.
.It "bce%d: device timeout"
The device has stopped responding to the network or there is a problem
with the network connection (cable).
.It "bce%d: transmit fifo underflow"
An error occurred, the interface will be reinitialized.
.It "bce%d: receive fifo overflow"
An error occurred, the interface will be reinitialized.
.It "bce%d: receive descriptor underflow"
An error occurred, the interface will be reinitialized.
.It "bce%d: descriptor protocol error"
An error occurred, the interface will be reinitialized.
.It "bce%d: data error"
An error occurred, the interface will be reinitialized.
.It "bce%d: descriptor error"
An error occurred, the interface will be reinitialized.
.It "bce%d: general purpose timeout"
An error occurred, the interface will be reinitialized.
.It "bce%d: unable to allocate or map rx(%d) mbuf, error = %d"
Failed to initialize the interface.
.It "bce%d: timed out writing pkt filter ctl"
Failed to add MAC address.
.It "bce%d: timed out disabling ethernet mac"
A problem occurred when resetting the interface.
.It "bce%d: receive dma did not go idle after error"
A problem occurred when resetting the interface.
.It "bce%d: timed out resetting ethernet mac"
A problem occurred when resetting the interface.
.It "bce%d: while resetting core, reject did not set"
A problem occurred when resetting the interface.
.It "bce%d: while resetting core, busy did not clear"
A problem occurred when resetting the interface.
.It "bce%d: PHY read timed out reading phy %d, reg %d, val = %x"
An error occurred when reading a PHY register on the MII.
.It "bce%d: PHY read timed out writing phy %d, reg %d, val = %x"
An error occurred when writing a PHY register on the MII.
.El
.Sh SEE ALSO
.Xr arp 4 ,
.Xr bmtphy 4 ,
.Xr ifmedia 4 ,
.Xr intro 4 ,
.Xr mii 4 ,
.Xr netintro 4 ,
.Xr pci 4 ,
.Xr hostname.if 5 ,
.Xr ifconfig 8
.Sh HISTORY
The
.Nm
driver appeared in
.Nx 1.6.2 .
.Ox
support was added in
.Ox 3.5 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An Cliff Wright Aq cliff@snipe444.org
and ported to
.Ox
by
.An Nathan L. Binkert Aq binkertn@umich.edu .
.Sh BUGS
The BCM4401 hardware can not do DMA to addresses above 1GB.
Since the
.Nm
driver makes no effort to circumvent this problem, it is likely that
the device will not work properly on machines with more than 1GB of
system memory.
|
