diff options
Diffstat (limited to 'share/man/man4/pcn.4')
| -rw-r--r-- | share/man/man4/pcn.4 | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/share/man/man4/pcn.4 b/share/man/man4/pcn.4 new file mode 100644 index 0000000..b86e4fb --- /dev/null +++ b/share/man/man4/pcn.4 @@ -0,0 +1,191 @@ +.\" Copyright (c) Berkeley Software Design, Inc. +.\" Copyright (c) 1997, 1998, 1999, 2000 +.\" Bill Paul <wpaul@osd.bsdi.com>. 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 January 31, 2006 +.Dt PCN 4 +.Os +.Sh NAME +.Nm pcn +.Nd "AMD PCnet/PCI Fast Ethernet device driver" +.Sh SYNOPSIS +To compile this driver into the kernel, +place the following lines in your +kernel configuration file: +.Bd -ragged -offset indent +.Cd "device miibus" +.Cd "device pcn" +.Ed +.Pp +Alternatively, to load the driver as a +module at boot time, place the following line in +.Xr loader.conf 5 : +.Bd -literal -offset indent +if_pcn_load="YES" +.Ed +.Sh DESCRIPTION +The +.Nm +driver provides support for PCI Ethernet adapters and embedded +controllers based on the AMD PCnet/FAST, PCnet/FAST+, PCnet/FAST III, +PCnet/PRO and PCnet/Home Ethernet controller chips. +Supported NIC's include the Allied Telesyn AT-2700 family. +.Pp +The PCnet/PCI chips include a 100Mbps Ethernet MAC and support +both a serial and MII-compliant transceiver interface. +They use a bus master DMA and a scatter/gather descriptor scheme. +The AMD chips provide a mechanism for zero-copy receive, +providing good performance in server environments. +Receive address filtering is provided using a single perfect filter entry +for the station address and a 64-bit multicast hash table. +.Pp +The +.Nm +driver supports the following media types: +.Bl -tag -width 10baseTXUTP +.It autoselect +Enable autoselection of the media type and options. +The user can manually override +the autoselected mode by adding media options to +.Xr rc.conf 5 . +.It 10baseT/UTP +Set 10Mbps operation. +The +.Xr ifconfig 8 +.Cm mediaopt +option can also be used to select either +.Sq full-duplex +or +.Sq half-duplex +modes. +.It 100baseTX +Set 100Mbps (Fast Ethernet) operation. +The +.Xr ifconfig 8 +.Cm mediaopt +option can also be used to select either +.Sq full-duplex +or +.Sq half-duplex +modes. +.El +.Pp +The +.Nm +driver supports the following media options: +.Bl -tag -width full-duplex +.It full-duplex +Force full duplex operation. +.It half-duplex +Force half duplex operation. +.El +.Pp +For more information on configuring this device, see +.Xr ifconfig 8 . +.Sh HARDWARE +The +.Nm +driver supports adapters and embedded controllers based on the AMD PCnet/FAST, +PCnet/FAST+, PCnet/FAST III, PCnet/PRO and PCnet/Home Fast Ethernet chips: +.Pp +.Bl -bullet -compact +.It +AMD Am79C971 PCnet-FAST +.It +AMD Am79C972 PCnet-FAST+ +.It +AMD Am79C973/Am79C975 PCnet-FAST III +.It +AMD Am79C976 PCnet-PRO +.It +AMD Am79C978 PCnet-Home +.It +Allied-Telesis LA-PCI +.El +.Sh DIAGNOSTICS +.Bl -diag +.It "pcn%d: couldn't map ports/memory" +A fatal initialization error has occurred. +.It "pcn%d: couldn't map interrupt" +A fatal initialization error has occurred. +.It "pcn%d: watchdog timeout" +The device has stopped responding to the network, or there is a problem with +the network connection (e.g.\& a cable fault). +.It "pcn%d: no memory for rx list" +The driver failed to allocate an mbuf for the receiver ring. +.It "pcn%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 "pcn%d: chip is in D3 power state -- setting to D0" +This message applies only to adapters which support power +management. +Some operating systems place the controller in low power +mode when shutting down, and some PCI BIOSes fail to bring the chip +out of this state before configuring it. +The controller 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 will not 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 a +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. +.El +.Sh SEE ALSO +.Xr arp 4 , +.Xr miibus 4 , +.Xr netintro 4 , +.Xr ng_ether 4 , +.Xr ifconfig 8 +.Rs +.%T AMD PCnet/FAST, PCnet/FAST+ and PCnet/Home datasheets +.%U http://www.amd.com +.Re +.Sh HISTORY +The +.Nm +device driver first appeared in +.Fx 4.3 . +.Sh AUTHORS +The +.Nm +driver was written by +.An Bill Paul Aq wpaul@osd.bsdi.com . |
