Boost Performance of Intel Pro 100 Cards for Imaging
Novell Cool Solutions: Tip
By Neil Ritchie
Digg This -
Posted: 15 Apr 2004
Update: See the new suggestion below.
I have discovered that Intel Pro 100 cards default to 10mb/half duplex during imaging if switch is hard-set to 100/full.
SOLUTION: Instead of changing the switch to autodetect, you can hard-set the card to 100/full with a few parameters in driver.conf in Linux.2
You need to modify the LINUX.2 file in SYS\tftp. There is a TID outlining the procedure below, but I've included it anyway with my fix.
Here's what to do:
- Copy the file to a linux box. I just set up FTP on the linux box and got it onto it that way.
- Go to the directory you copied the file to on the linux box. Do the
mv linux.2 linux.gz (renames it to a gzipped file) gzip -d linux.gz (extracts the zipped file) mount -o loop linux /mnt/-mountpoint- (-mountpoint- being where you're mounting it to, you can just use 'cdrom' if you like, it's just directory)
- Ensure the pwd (present working dir) is your mountpoint. Move to the /bin
directory. Now you need to modify 'driver.conf'. Use the following if
you're not familiar with vi:
pico driver.conf (pico is a text editor) Insert the following line: insmod -f eepro100 options=0x30,0x30,0x30,0x30 (load driver forced with all interfaces set to 100/full duplex, no autodetect)
- Now exit, and save changes. Use the following to unmount and rezip the file
umount /mnt/-mountpoint- gzip -9c linux > linux.gz mv linux.gz linux.2
- Now copy the file back to SYS\TFTP.
Assuming everything worked, it should fly now.
If you have any questions you may contact Neil at firstname.lastname@example.org
Feedback: Right before I found this Cool Solution, I found the following on Google. http://archives.real-time.com/pipermail/tclug-list/2002-November/054135.html
If you run "/sbin/mii-tool -F 100baseTx-FD eth0" this forces eth0 to use 100 Full Duplex (assuming it can do that). I am going to try adding that code to my boot CD.
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