405 lines
12 KiB
Groff
405 lines
12 KiB
Groff
.\"
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.\" Copyright (c) 1994, David Greenman
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.\" 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 David Greenman.
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.\" 4. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd October 5, 2005
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.Dt ED 4
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.Os
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.Sh NAME
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.Nm ed
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.Nd "NE-2000 and WD-80x3 Ethernet driver"
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.Sh SYNOPSIS
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To compile this driver into the kernel,
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place the following lines in your
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kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device miibus"
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.Cd "device ed"
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.Ed
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.Pp
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Alternatively, to load the driver as a
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module at boot time, place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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if_ed_load="YES"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for 8 and 16bit Ethernet cards that are based on
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the National Semiconductor DS8390 and similar NICs manufactured by
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other companies.
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The
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.Nm
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driver also supports many PC Card chips which interface via MII to a PHY.
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Axiom's AX88790, AX88190 and AX88190A;
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DLink's DL10019 and DL10022; and
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Tamarack's TC5299J chips all support internal or external MII/PHY combinations.
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For these chipsets, autonegotiation and status reporting are supported.
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.Pp
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The
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.Nm
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driver uses a unique multi-buffering mechanism to achieve high transmit performance.
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When using 16bit ISA cards, as high as 97% of the theoretical maximum performance of
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the IEEE 802.3 CSMA Ethernet is possible.
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.Pp
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In addition to the standard port and IRQ specifications, the
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.Nm
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driver also supports a number of
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.Cd flags
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which can force 8/16bit mode, enable/disable multi-buffering, and select the default
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interface type (AUI/BNC, and for cards with twisted pair, AUI/10BaseT).
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.Pp
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The
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.Cd flags
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are a bit field, and are summarized as follows:
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.Bl -tag -width indent
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.It Li 0x01
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Disable transceiver.
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On those cards which support it, this flag causes the transceiver to
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be disabled and the AUI connection to be used by default.
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.It Li 0x02
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Force 8bit mode.
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This flag forces the card to 8bit mode regardless of how the
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card identifies itself.
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This may be needed for some clones which incorrectly
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identify themselves as 16bit, even though they only have an 8bit interface.
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This flag takes precedence over force 16bit mode.
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.It Li 0x04
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Force 16bit mode.
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This flag forces the card to 16bit mode regardless of how the
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card identifies itself.
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This may be needed for some clones which incorrectly
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identify themselves as 8bit, even though they have a 16bit ISA interface.
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.It Li 0x08
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Disable transmitter multi-buffering.
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This flag disables the use of multiple
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transmit buffers and may be necessary in rare cases where packets are sent out
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faster than a machine on the other end can handle (as evidenced by severe packet
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lossage).
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Some
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.No ( non- Ns Fx
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:-)) machines have terrible Ethernet performance
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and simply cannot cope with 1100K+ data rates.
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Use of this flag also provides
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one more packet worth of receiver buffering, and on 8bit cards, this may help
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reduce receiver lossage.
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.El
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.Pp
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When using a 3c503 card, the AUI connection may be selected by specifying the
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.Cm link2
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option to
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.Xr ifconfig 8
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(BNC is the default).
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.Sh HARDWARE
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The
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.Nm
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driver supports the following Ethernet NICs:
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.Pp
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.Bl -bullet -compact
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.It
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3Com 3c503 Etherlink II
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.Pq Cd "options ED_3C503"
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.It
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AR-P500 Ethernet
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.It
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Accton EN1644 (old model), EN1646 (old model), EN2203 (old model) (110pin)
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(flags 0xd00000)
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.It
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Accton EN2212/EN2216/UE2216
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.It
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Allied Telesis CentreCOM LA100-PCM_V2
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.It
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Allied Telesis LA-98 (flags 0x000000) (PC-98)
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.It
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Allied Telesis SIC-98, SIC-98NOTE (110pin), SIU-98 (flags 0x600000) (PC-98)
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.It
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Allied Telesis SIU-98-D (flags 0x610000) (PC-98)
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.It
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AmbiCom 10BaseT card
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.It
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Bay Networks NETGEAR FA410TXC Fast Ethernet
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.It
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Belkin F5D5020 PC Card Fast Ethernet
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.It
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Billionton LM5LT-10B Ethernet/Modem PC Card
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.It
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Bromax iPort 10/100 Ethernet PC Card
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.It
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Bromax iPort 10 Ethernet PC Card
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.It
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Buffalo LPC2-CLT, LPC3-CLT, LPC3-CLX, LPC4-TX PC Card
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.It
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CNet BC40 adapter
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.It
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Compex Net-A adapter
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.It
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Contec C-NET(98), RT-1007(98), C-NET(9N) (110pin) (flags 0xa00000) (PC-98)
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.It
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Contec C-NET(98)E-A, C-NET(98)L-A, C-NET(98)P (flags 0x300000) (PC-98)
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.It
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Corega Ether98-T (flags 0x000000) (PC-98)
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.It
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Corega Ether PCC-T/EtherII PCC-T/FEther PCC-TXF/PCC-TXD
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.It
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Corega LAPCCTXD (TC5299J)
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.It
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CyQ've ELA-010
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.It
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DEC EtherWorks DE305
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.It
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Danpex EN-6200P2
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.It
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D-Link DE-298, DE-298P (flags 0x500000) (PC-98)
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.It
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D-Link DE-650/660
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.It
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D-Link IC-CARD/IC-CARD+ Ethernet
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.It
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ELECOM LD-98P (flags 0x500000) (PC-98)
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.It
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ELECOM LD-BDN, LD-NW801G (flags 0x200000) (PC-98)
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.It
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ELECOM Laneed LD-CDL/TX, LD-CDF, LD-CDS, LD-10/100CD, LD-CDWA (DP83902A)
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.It
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Hawking PN652TX PC Card (AX88790)
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.It
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HP PC Lan+ 27247B and 27252A
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.Pq Cd "options ED_HPP"
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.It
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IBM Creditcard Ethernet I/II
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.It
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ICM AD-ET2-T, DT-ET-25, DT-ET-T5, IF-2766ET, IF-2771ET, NB-ET-T (110pin)
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(flags 0x500000) (PC-98)
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.It
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I-O DATA LA/T-98, LA/T-98SB, LA2/T-98, ET/T-98 (flags 0x900000) (PC-98)
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.It
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I-O DATA ET2/T-PCI
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.It
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I-O DATA PCLATE
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.It
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Kansai KLA-98C/T (flags 0x900000) (PC-98)
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.It
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Kingston KNE-PC2, CIO10T, KNE-PCM/x Ethernet
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.It
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Linksys EC2T/PCMPC100/PCM100, PCMLM56
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.It
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Linksys EtherFast 10/100 PC Card, Combo PCMCIA Ethernet Card (PCMPC100 V2)
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.It
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Logitec LAN-98T (flags 0xb00000) (PC-98)
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.It
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MACNICA Ethernet ME1 for JEIDA
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.It
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MACNICA ME98 (flags 0x900000) (PC-98)
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.It
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MACNICA NE2098 (flags 0x400000) (PC-98)
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.It
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MELCO EGY-98 (flags 0x300000) (PC-98)
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.It
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MELCO LGH-98, LGY-98, LGY-98-N (110pin), IND-SP, IND-SS (flags 0x400000) (PC-98)
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.It
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MELCO LGY-PCI-TR
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.It
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MELCO LPC-T/LPC2-T/LPC2-CLT/LPC2-TX/LPC3-TX/LPC3-CLX
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.It
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NDC Ethernet Instant-Link
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.It
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NEC PC-9801-77, PC-9801-78 (flags 0x910000) (PC-98)
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.It
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NEC PC-9801-107, PC-9801-108 (flags 0x800000) (PC-98)
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.It
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National Semiconductor InfoMover NE4100
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.It
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NetGear FA-410TX
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.It
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NetVin 5000
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.It
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Network Everywhere Ethernet 10BaseT PC Card
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.It
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Networld 98X3 (flags 0xd00000) (PC-98)
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.It
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Networld EC-98X, EP-98X (flags 0xd10000) (PC-98)
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.It
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New Media LANSurfer 10+56 Ethernet/Modem
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.It
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New Media LANSurfer
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.It
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Novell NE1000/NE2000/NE2100
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.It
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PLANEX ENW-8300-T
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.It
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PLANEX EN-2298-C (flags 0x200000) (PC-98)
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.It
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PLANEX EN-2298P-T, EN-2298-T (flags 0x500000) (PC-98)
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.It
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PLANEX FNW-3600-T
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.It
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Psion 10/100 LANGLOBAL Combine iT
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.It
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RealTek 8029
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.It
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Relia Combo-L/M-56k PC Card
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.It
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SMC Elite 16 WD8013
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.It
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SMC Elite Ultra
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.It
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SMC EtherEZ98 (flags 0x000000) (PC-98)
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.It
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SMC WD8003E/WD8003EBT/WD8003S/WD8003SBT/WD8003W/WD8013EBT/WD8013W and clones
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.It
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SMC EZCard PC Card, 8040-TX, 8041-TX, 8041-TX V.2
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.It
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Socket LP-E, ES-1000 Ethernet/Serial, LP-E CF, LP-FE CF
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.It
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Surecom EtherPerfect EP-427
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.It
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Surecom NE-34
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.It
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TDK 3000/3400/5670 Fast Etherenet/Modem
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.It
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TDK LAK-CD031, Grey Cell GCS2000 Ethernet Card
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.It
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TDK DFL5610WS Ethernet/Modem PC Card
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.It
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Telecom Device SuperSocket RE450T
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.It
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VIA VT86C926
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.It
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Winbond W89C940
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.El
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.Pp
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C-Bus, ISA, PCI and PC Card devices are supported.
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "ed%d: kernel configured irq %d doesn't match board configured irq %d."
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The IRQ number that was specified in the kernel config file (and then compiled
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into the kernel) differs from the IRQ that has been set on the interface card.
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.It "ed%d: failed to clear shared memory at %x - check configuration."
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When the card was probed at system boot time, the
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.Nm
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driver found that it could not clear the card's shared memory.
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This is most commonly
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caused by a BIOS extension ROM being configured in the same address space as the
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Ethernet card's shared memory.
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Either find the offending card and change its BIOS
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ROM to be at an address that does not conflict, or change the
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.Cd iomem
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option in the kernel config file so that the card's shared memory is mapped at a
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non-conflicting address.
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.It "ed%d: Invalid irq configuration (%d) must be 2-5 for 3c503."
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The IRQ number that was specified in the kernel config file is not valid for
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the 3Com 3c503 card.
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The 3c503 can only be assigned to IRQs 2 through 5.
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.It "ed%d: Cannot find start of RAM."
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.It "ed%d: Cannot find any RAM, start : %d, x = %d."
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The probe of a Gateway card was unsuccessful in configuring the card's packet memory.
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This likely indicates that the card was improperly recognized as a Gateway or that
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the card is defective.
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.It "ed: packets buffered, but transmitter idle."
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Indicates a logic problem in the driver.
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Should never happen.
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.It "ed%d: device timeout"
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Indicates that an expected transmitter interrupt did not occur.
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Usually caused by an
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interrupt conflict with another card on the ISA bus.
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This condition could also be caused if the kernel is configured for a
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different IRQ channel than the one the card is actually using.
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If that is the case, you will have to either reconfigure the card
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using a DOS utility or set the jumpers on the card appropriately.
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.It "ed%d: NIC memory corrupt - invalid packet length %d."
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Indicates that a packet was received with a packet length that was either larger than
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the maximum size or smaller than the minimum size allowed by the IEEE 802.3 standard.
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Usually
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caused by a conflict with another card on the ISA bus, but in some cases may also
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indicate faulty cabling.
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.It "ed%d: remote transmit DMA failed to complete."
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This indicates that a programmed I/O transfer to an NE1000 or NE2000 style card
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has failed to properly complete.
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Usually caused by the ISA bus speed being set
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too fast.
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.El
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.Sh CAVEATS
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Early revision DS8390 chips have problems.
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They lock up whenever the receive
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ring-buffer overflows.
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They occasionally switch the byte order
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of the length field in the packet ring header (several different causes
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of this related to an off-by-one byte alignment) - resulting in
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.Qq Li "NIC memory corrupt - invalid packet length"
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messages.
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The card is reset
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whenever these problems occur, but otherwise there is no problem with
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recovering from these conditions.
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.Pp
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The NIC memory access to 3Com and Novell cards is much slower than it is on
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WD/SMC cards; it is less than 1MB/second on 8bit boards and less than 2MB/second
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on the 16bit cards.
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This can lead to ring-buffer overruns resulting in
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dropped packets during heavy network traffic.
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.Pp
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16bit Compex cards identify themselves as being 8bit.
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While these cards will
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work in 8bit mode, much higher performance can be achieved by specifying
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.Cd "flags 0x04"
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(force 16bit mode) in your kernel config file.
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In addition, you should also specify
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.Cd "iosiz 16384"
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to take advantage of the extra 8K of shared memory that 16bit mode provides.
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.Sh SEE ALSO
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.Xr arp 4 ,
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.Xr miibus 4 ,
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.Xr netintro 4 ,
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.Xr ng_ether 4 ,
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.Xr ifconfig 8
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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 1.0 .
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.Sh AUTHORS
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The
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.Nm
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device driver and this manual page were written by
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.An David Greenman .
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.Sh BUGS
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The
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.Nm
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driver is a bit too aggressive about resetting the card whenever any bad
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packets are received.
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As a result, it may throw out some good packets which
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have been received but not yet transferred from the card to main memory.
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.Pp
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The
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.Nm
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PC Card attachment supports the D-Link DMF650TX Lan/Modem card's ethernet
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port only at this time.
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