.\" $NetBSD: ep.4,v 1.11 1997/02/17 12:05:02 jonathan Exp $ .\" .\" Copyright (c) 1997 Jonathan Stone .\" All rights reserved. .\" .\" Copyright (c) 1994 Herb Peyerl .\" 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 acknowledgements: .\" This product includes software developed by Herb Peyerl .\" This product includes software developed by Jonathan Stone .\" 3. The name of the author may not be used to endorse or promote products .\" derived from this software without specific prior written permission .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 February 04, 1993 .Dt EP 4 .Os .Sh NAME .Nm ep .Nd Ethernet driver for 3Com Etherlink III family (3c5x9, etc) .Sh SYNOPSIS .Cd "ep? at isa? port ? irq ?" .Cd "ep* at isapnp?" .Cd "ep* at eisa? slot ?" .Cd "ep* at pci? dev ? function ?" .Sh DESCRIPTION The .Nm ep device driver supports the 3Com Etherlink III family of cards on Alpha and i386 CPUs. Supported Etherlink II cards include: .Pp .Bl -tag -width xxxxxx .It 3c509 ISA 10Mbit card, in BNC and multiport variants .It 3c509B ISA plug-and-play 10Mbit card, in BNC and multiport variants .It 3c515 ISA 10Mbit and 10/100 card with busmastering capability (untested) .It 3c579 EISA 10Mbit card, in BNC and muiltport variants .It 3c592 EISA 10Mbit card with busmastering capability .It 3c597 EISA 10/100Mbit card with busmastering capability .It 3c590 PCI 10Mbit multiport card with busmastering capability .It 3c595 PCI 10/100Mbit multiport card with busmastering capability .It 3c900 PCI 10Mbit card in UTP and multiport variants .It 3c905 PCI 10/100Mbit cards .El The .Nm ep driver provides full support for the 10Mbit-only cards. Due to limitations in .Xr ifconfig 8 , the .Nm ep driver does not provide full support for selecting and switching media on the 10/100 cards. (In all other respects, the .Nm ep driver supports the 10/100 cards as completely as the 10Mbit cards.) The .Nm ep driver also works with 3c589 PCMCIA cards, if pre-configured to work as ISA devices. NetBSD does not include PCMCIA support at this time. .Sh 10MBIT MEDIA SELECTION Various models of these cards come with a different assortment of media. Supported 10Mbit Ethernet media include: .Pp .Bl -tag -width xxxxxxxxxxxxxxxx .It AUI/DIX Standard 15 pin connector .It 10Base2 BNC, also known as thin-net .It 10BaseT UTP, also known as twisted pair .El .Pp The .Nm driver defaults to using the BNC port. To choose an alternate port, use the following flag combinations with .Xr ifconfig 8 or in your /etc/hostname.ep? file. .Pp .Bl -tag -width xxxxxxxxxxxxxxxx .It -link0 Use the BNC port (default). .It \ link0 -link1 Use the AUI port. .It \ link0 \ link1 Use the UTP port. .El .Pp If there are multiple cards in the computer, they are searched for in the following order: The 3c579 EISA cards are searched for first -- they will be found in EISA slot# order. Next, the 3c509 ISA cards are searched -- they are found in increasing ethernet address order. This is an example of how they will probe: .Pp ep0 at isa0 port 0x6000-0x600f irq 10: aui/bnc address 00:60:8c:70:e5:c5 ep1 at isa0 port 0x300-0x30f irq 3: aui/bnc/utp address 00:20:af:10:62:ab .Pp You may specify the port and irq numbers that the cards are expected to be found at, but it is not necessary. The cards are sufficiently intelligent to tell us where they actually live on the ISA bus. .Pp Some models of 3c5x9 have all three connectors on them. In the case of these cards; you must configure the transceiver type with the 3Com supplied DOS configuration disk before the link0/link1 flags will operate correctly. (This is a bug). .Pp .Sh 100MBIT MEDIA SELECTION Supported 100Mbit Ethernet media include: .Pp .Bl -tag -width xxxxxxxxxxxxxxxx .It 100baseTX 100Mbit Ethernet over Cat-5 unshielded twisted pair .It 100baseFX 100Mbit Ethernet over fibre-optic media .It 100baseT4 100Mbit Ethernet over all four pairs of Cat-3 UTP .It MII Media Independent Interface connector. .El .Pp .Xr ifconfig 8 does not properly support selecting 100Mbit media. To change media, you must configure the desired media with the 3Com supplied DOS configuration disk before booting or installing NetBSD. Set the media you want to use as the default in the config utility. Even then, the link0/link1 flags will have no effect on 100Mbit cards. .Sh NOTES The 3c509 card has no jumpers to set the address. 3Com supplies software to set the address of the card in software. To find the card on the ISA bus, the kernel performs a complex scan operation at IO address 0x100. Beware! Avoid placing other cards at that address! .Pp The 3Com configuration utilities can `autosense' the active media and save it as default. The saved default medium is the media active at the time the configuration utility was run. The .Nm ep driver does not yet re-autosense the active media at boot time; it simply uses the media type sensed and saved when the configuration utility was run. .Sh DIAGNOSTICS ep0: reset (status: %x) .in +4 the driver has encountered a FIFO underrun or overrun. The driver will reset the card and the packet will be lost. This is not fatal. .in -4 ep0: eeprom failed to come ready .in +4 The eeprom failed to come ready. This probably means the card is wedged. .in -4 ep0: 3c509 in test mode. Erase pencil mark! .in +4 This means that someone has scribbled with pencil in the test area on the card. Erase the pencil mark and reboot. (This is not a joke). .in -4 .Sh BUGS .Xr ifconfig 8 and the link0/link1/link2 interface flags need to be extended to handle the four additional media types available with Fast (100Mbit) Ethernet. The requirement to pre-configure combo cards should be removed. Support for autosensing the active media should be added to the driver. .Sh SEE ALSO .Xr ifconfig 8 , .Xr intro 4 , .Xr ed 4 , .Xr eg 4 , .Xr el 4 , .Xr ie 4 , .Xr le 4 .Sh STANDARDS are great. There's so many to choose from.