This document contains instructions on installing Linux driver and adjusting speed for the series of RTL8139(A/B/C/8130) Network Adapter
(1.) Kernel Had Supported Driver:
Check the directory /lib/modules/./net if you could find rtl8139.o Your kernel had supported RTL8139 series. You could easy use linuxconf to setup your card. If you dont like linuxconf, you also could use modprobe rtl8139 and ifconfig up eth0 to load module. If your driver load properly, your /etc/conf.modules should include alias eth0 rtl8139.
(2.) Kernel Dont Support Driver:
If your kernel doesnt support RTL8139 series, you should compiler driver by yourself. Please contact
http://www.scyld.com/network/rtl8139.html to get source code. The compiler command is located on the end of source code. Maybe like "gcc -DMODULE -Wall -Wstrict-prototypes -O6 -c rtl8139.c". If you couldnt compiler success, maybe you should refer to error message and copy library or head file to Linux.
(3.) Adjusting speed:
Driver is designed with the gold that no options should be needed in most environment. However not all cards and networks can be automatically configured, thus allow operational parameters to be modify when they are loaded as module. Typically the following variables may be set:
insmod rtl8139 options=0x40
Hex Decimal Meaning
0x10 16 ..Force Full-Duplex operation (must be used with 0x20 or 0x40)
0x20 32 ..Force 100mbps-only operation
0x40 64 ..Force 10mbps-only
If loading as a module and configured /etc/conf.modules
alias eth0 rtl8139
options options=0x40
Look weird like that but I believe that works.
That's what I got out of the documentation. It seems like the
options are supported in the module. If not, you'll need to
download
ftp://ftp.scyld.com/pub/diag/rtl8139-diag.c
Compiling syntax is at the end.
Run: rtl8139-diag -F 10baseT-HD
That will force it to 10Mbps at half-duplex. If you want full-duplex change it to 10baseT-FD. You'll need a switch for full-duplex.
Once you establish that it works, you can write the setting to
the EEPROM with "rtl8139-diag -w".
(4.) Other information:
You could get some helpful information on those URLs.
http://www.scyld.com/
http://www.deja.com/usenet
http://www.realtek.com.tw/cn/html
If you have any questions, please dont hesitate contact Realtek support Team at cnfae@realtek.com.tw
