1.\" 2.\" Copyright (c) 1998 Michael Smith 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.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\"
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26.\" $FreeBSD: head/share/man/man4/man4.i386/cs.4 139097 2004-12-21 01:09:34Z brueffer $
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26.\" $FreeBSD: head/share/man/man4/man4.i386/cs.4 148145 2005-07-19 00:26:30Z trhodes $ |
27.\"
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28.Dd July 20, 1998
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28.Dd July 16, 2005 |
29.Dt CS 4 i386 30.Os 31.Sh NAME 32.Nm cs
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33.Nd Ethernet device driver
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33.Nd "Ethernet device driver" |
34.Sh SYNOPSIS
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35To compile support for the 36.Nm 37driver into your kernel, place the following line in your kernel configuration 38file: 39.Bd -ragged -offset indent |
40.Cd "device cs"
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41.Ed |
42.Pp
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43Alternatively, to load the 44.Nm 45driver at boot time, place the following line in 46.Xr loader.conf 5 : 47.Bd -literal -offset indent 48if_cs_load="YES" 49.Ed 50.Pp |
51In 52.Pa /boot/device.hints : 53.Cd hint.cs.0.at="isa" 54.Cd hint.cs.0.port="0x300" 55.Cd hint.cs.0.irq="10" 56.Cd hint.cs.0.maddr="0xd000" 57.Sh DESCRIPTION 58The 59.Nm 60driver provides support for ISA Ethernet adapters based on the 61.Tn Crystal Semiconductor CS8900 62and 63.Tn CS8920 64NICs. 65These devices are used on the 66.Tn IBM EtherJet ISA 67adapters and in many embedded applications where the high integration, small 68size and low cost of the CS89x0 family compensate for their drawbacks. 69.Pp 70The 71.Nm 72driver will obtain configuration parameters either from 73.Pa /boot/device.hints 74or from the card. 75At least the I/O port number must be specified. 76Other parameters specified in 77.Pa /boot/device.hints 78will be used if present; 79the card may be soft-configured so these may be any valid 80value. 81Adapters based on the CS8920 normally offer PnP configuration and the driver 82will detect the 83.Tn IBM EtherJet 84and the 85.Tn CSC6040 86adapters automatically. 87.Pp 88Note that the CS8900 is limited to 4 IRQ values; these are normally implemented 89as 5, 10, 11 and 12. 90The CS8920 has no such limitation. 91.Pp 92Memory-mapped and DMA operation are not supported at this time. 93.Sh DIAGNOSTICS 94.Bl -diag 95.It "cs%d: full/half duplex negotiation timeout" 96The attempt to negotiate duplex settings with the hub timed out. 97This may 98indicate a cabling problem or a faulty or incompatible hub. 99.It "cs%d: failed to enable <media>" 100The CS89x0 failed to select the nominated media, either because it is not 101present or not operating correctly. 102.It "cs%d: No EEPROM, assuming defaults" 103The CS89x0 does not have an EEPROM, or the EEPROM is hopelessly damaged. 104Operation 105will only be successful if the configuration entry lists suitable values for 106the adapter. 107.It "cs%d: Invalid irq" 108The IRQ specified in the configuration entry is not valid for the adapter. 109.It "cs%d: Could not allocate memory for NIC" 110There is a critical memory shortage. 111The adapter will not function. 112.It "cs%d: Adapter has no media" 113The adapter is not configured for a specific media type. 114The media type will have 115to be manually set. 116.It "This is a %s, but LDN %d is disabled" 117The PnP probe code found a recognised adapter, but the adapter is disabled. 118.It "failed to read pnp parms" 119A PnP adapter was found, but configuration parameters for it could not be read. 120.It "failed to pnp card parameters" 121The parameters obtained via PnP were not accepted by the driver. 122The adapter 123may not function. 124.El 125.Sh CAVEATS 126The CS89x0 family of adapters have a very small RAM buffer (4K). 127This may 128cause problems with extremely high network loads or bursty network traffic. 129In particular, NFS operations should be limited to 1k read/write transactions 130in order to avoid overruns. 131.Sh SEE ALSO 132.Xr arp 4 , 133.Xr netintro 4 , 134.Xr ng_ether 4 , 135.Xr ifconfig 8 136.Sh AUTHORS 137.An -nosplit 138The 139.Nm 140device driver was written by 141.An Maxim Bolotin 142and 143.An Oleg Sharoiko . 144This manpage was written by 145.An Michael Smith .
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