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Lei Chun

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Document Revision: 0.3 for SiS900 driver v1.06 & v1.07

November 16, 2000

 1999

 Silicon Integrated System Corp.

        This program is free software; you can redistribute it and/or modify

        it under the terms of the GNU General Public License as published by

        the Free Software Foundation; either version 2 of the License, or

        (at your option) any later version.

        This program is distributed in the hope that it will be useful,

        but WITHOUT ANY WARRANTY; without even the implied warranty of

        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

        GNU General Public License for more details.

        You should have received a copy of the GNU General Public License

        along with this program; if not, write to the Free Software

        Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

This document gives some information on installation and usage of SiS 900/7016

device driver under Linux.

This document describes the revision 1.06 and 1.07 of SiS 900/7016 Fast Ethernet

device driver under Linux. The driver is developed by Silicon Integrated

System Corp. and distributed freely under the GNU General Public License (GPL).

The driver can be compiled as a loadable module and used under Linux kernel

version 2.2.x. (rev. 1.06)

With minimal changes, the driver can also be used under 2.3.x and 2.4.x kernel

(rev. 1.07), please see

. If you are intended to

use the driver for earlier kernels, you are on your own.

The driver is tested with usual TCP/IP applications including

FTP, Telnet, Netscape etc. and is used constantly by the developers.

Please send all comments/fixes/questions to

Lei-Chun Chang.

Changes made in Revision 1.07

Separation of sis900.c and sis900.h in order to move most

constant definition to sis900.h (many of those constants were

corrected)

Clean up PCI detection, the pci-scan from Donald Becker were not used,

just simple pci_find_*.

MII detection is modified to support multiple mii transceiver.

Bugs in read_eeprom, mdio_* were removed.

Lot of sis900 irrelevant comments were removed/changed and

more comments were added to reflect the real situation.

Clean up of physical/virtual address space mess in buffer

descriptors.

Better transmit/receive error handling.

The driver now uses zero-copy single buffer management

scheme to improve performance.

Names of variables were changed to be more consistent.

Clean up of auo-negotiation and timer code.

Automatic detection and change of PHY on the fly.

Bug in mac probing fixed.

Fix 630E equalier problem by modifying the equalizer workaround rule.

Support for ICS1893 10/100 Interated PHYceiver.

Support for media select by ifconfig.

Added kernel-doc extratable documentation.

This driver is developed on the following hardware

Intel Celeron 500 with SiS 630 (rev 02) chipset

SiS 900 (rev 01) and SiS 7016/7014 Fast Ethernet Card

and tested with these software environments

Red Hat Linux version 6.2

Linux kernel version 2.4.0

Netscape version 4.6

NcFTP 3.0.0 beta 18

Samba version 2.0.3

In the package you can find these files:

sis900.c

Driver source file in C

sis900.h

Header file for sis900.c

sis900.sgml

DocBook SGML source of the document

sis900.txt

Driver document in plain text

Silicon Integrated System Corp. is cooperating closely with core Linux Kernel

developers. The revisions of SiS 900 driver are distributed by the usuall channels

for kernel tar files and patches. Those kernel tar files for official kernel and

patches for kernel pre-release can be download at

official kernel ftp site

and its mirrors.

The 1.06 revision can be found in kernel version later than 2.3.15 and pre-2.2.14,

and 1.07 revision can be found in kernel version 2.4.0.

If you have no prior experience in networking under Linux, please read

Ethernet HOWTO and

Networking HOWTO available from

Linux Documentation Project (LDP).

The driver is bundled in release later than 2.2.11 and 2.3.15 so this

is the most easy case.

Be sure you have the appropriate packages for compiling kernel source.

Those packages are listed in Document/Changes in kernel source

distribution. If you have to install the driver other than those bundled

in kernel release, you should have your driver file

sis900.c and sis900.h

copied into /usr/src/linux/drivers/net/ first.

There are two alternative ways to install the driver

To build the driver as a loadable kernel module you have to reconfigure

the kernel to activate network support by

make menuconfig

Choose Loadable module support  --->,

then select Enable loadable module support.

Choose Network Device Support  --->, select

Ethernet (10 or 100Mbit).

Then select EISA, VLB, PCI and on board controllers,

and choose SiS 900/7016 PCI Fast Ethernet Adapter support

to M.

After reconfiguring the kernel, you can make the driver module by

make modules

The driver should be compiled with no errors. After compiling the driver,

the driver can be installed to proper place by

make modules_install

Load the driver into kernel by

insmod sis900

When loading the driver into memory, some information message can be view by

dmesg

or

cat /var/log/message

If the driver is loaded properly you will have messages similar to this:

sis900.c: v1.07.06  11/07/2000

eth0: SiS 900 PCI Fast Ethernet at 0xd000, IRQ 10, 00:00:e8:83:7f:a4.

eth0: SiS 900 Internal MII PHY transceiver found at address 1.

eth0: Using SiS 900 Internal MII PHY as default

showing the version of the driver and the results of probing routine.

Once the driver is loaded, network can be brought up by

/sbin/ifconfig eth0 IPADDR broadcast BROADCAST netmask NETMASK media TYPE

where IPADDR, BROADCAST, NETMASK are your IP address, broadcast address and

netmask respectively. TYPE is used to set medium type used by the device.

Typical values are "10baseT"(twisted-pair 10Mbps Ethernet) or "100baseT"

(twisted-pair 100Mbps Ethernet). For more information on how to configure

network interface, please refer to

Networking HOWTO.

The link status is also shown by kernel messages. For example, after the

network interface is activated, you may have the message:

eth0: Media Link On 100mbps full-duplex

If you try to unplug the twist pair (TP) cable you will get

eth0: Media Link Off

indicating that the link is failed.

If you want to make the driver into kernel, choose Y

rather than M on

SiS 900/7016 PCI Fast Ethernet Adapter support

when configuring the kernel. Build the kernel image in the usual way

make dep

make clean

make bzlilo

Next time the system reboot, you have the driver in memory.

There are some known problems and bugs. If you find any other bugs please

mail to lcchang@sis.com.tw

AM79C901 HomePNA PHY is not thoroughly tested, there may be some

bugs in the on the fly change of transceiver.

A bug is hidden somewhere in the receive buffer management code,

the bug causes NULL pointer reference in the kernel. This fault is

caught before bad things happen and reported with the message:

eth0: NULL pointer encountered in Rx ring, skipping

which can be viewed with dmesg or

cat /var/log/message.

The media type change from 10Mbps to 100Mbps twisted-pair ethernet

by ifconfig causes the media link down.

November 13, 2000, Revision 1.07, seventh release, 630E problem fixed

and furthur clean up.

November 4, 1999, Revision 1.06, Second release, lots of clean up

and optimization.

August 8, 1999, Revision 1.05, Initial Public Release

This driver was originally derived form

Donald Becker's

>pci-skeleton and

>rtl8139 drivers. Donald also provided various suggestion

regarded with improvements made in revision 1.06.

The 1.05 revision was created by

Jim Huang, AMD 79c901

support was added by Chin-Shan Li.

!Idrivers/net/sis900.c