1.\" 2.\" Copyright (c) 1994 Herb Peyerl 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 3. All advertising materials mentioning features or use of this software 14.\" must display the following acknowledgement: 15.\" This product includes software developed by Herb Peyerl 16.\" 3. The name of the author may not be used to endorse or promote products 17.\" derived from this software without specific prior written permission 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29.\" 30.\" $Id: ep.4,v 1.8 1995/02/17 09:43:42 jtc Exp $ 31.\" 32.Dd February 04, 1993 33.Dt EP 4 34.Os 35.Sh NAME 36.Nm ep 37.Nd Ethernet driver for 3Com Etherlink III (3c5x9) 38.Sh SYNOPSIS 39.Cd "ep? at isa? port ? irq ?" 40.Sh DESCRIPTION 41The 42.Nm ep 43device driver supports the 3c509 (ISA) and 3c579 (EISA) cards. 44Various models of these cards come with a different assortment of 45connectors: 46.Pp 47.Bl -tag -width xxxxxxxxxxxxxxxxxxxx 48.It AUI/DIX 49Standard 15 pin connector 50.It 10Base2 51BNC, also known as thin-net 52.It 10BaseT 53UTP, also known as twisted pair 54.El 55.Pp 56The default port to use is the BNC. To choose an alternate port, 57use the following flag combinations with 58.Xr ifconfig 8 59or in your /etc/hostname.ep? file. 60.Pp 61.Bl -tag -width xxxxxxxxxxxxxxxxxxxx 62.It -link0 63Use the BNC port (default). 64.It \ link0 -link1 65Use the AUI port. 66.It \ link0 \ link1 67Use the UTP port. 68.El 69.Pp 70If there are multiple cards in the computer, they are searched for 71in the following order: 72The 3c579 EISA cards are searched for first -- they will be found 73in EISA slot# order. 74Next, the 3c509 ISA cards are searched -- they are found in increasing 75ethernet address order. 76This is an example of how they will probe: 77.Pp 78ep0 at isa0 port 0x6000-0x600f irq 10: aui/bnc address 00:60:8c:70:e5:c5 79ep1 at isa0 port 0x300-0x30f irq 3: aui/bnc/utp address 00:20:af:10:62:ab 80.Pp 81You may specify the port and irq numbers that the cards are expected 82to be found at, but it is not necessary. 83The cards are sufficiently intelligent to tell us where they 84actually live on the ISA bus. 85.Pp 86.Sh NOTES 87The 3c509 card has no jumpers to set the address. 883COM supplies software to set the address of the card in software. 89To find the card on the ISA bus, the kernel performs a complex 90scan operation at IO address 0x100. 91Beware! 92Avoid placing other cards at that address! 93.Pp 94Some models of 3c5x9 have all three connectors on them. 95In the case of these cards; you must configure the transceiver type 96with the 3COM supplied DOS configuration disk before the link0/link1 97flags will operate correctly. 98.Pp 99.Sh DIAGNOSTICS 100ep0: reset (status: %x) 101.in +4 102the driver has encountered a FIFO underrun or overrun. The driver will reset 103the card and the packet will be lost. This is not fatal. 104.in -4 105ep0: eeprom failed to come ready 106.in +4 107The eeprom failed to come ready. This probably means the card is wedged. 108.in -4 109ep0: 3c509 in test mode. Erase pencil mark! 110.in +4 111This means that someone has scribbled with pencil in the test area on the 112card. Erase the pencil mark and reboot. (This is not a joke). 113.in -4 114.Sh SEE ALSO 115.Xr ifconfig 8 116.Sh STANDARDS 117are great. There's so many to choose from. 118