need help configuring kernel module for network device (forcedeth)

r00tb33r · 04-10-2007, 01:56 AM

I have an nVidia CK804 Ethernet which is part of the nForce chipset, and it uses the forcedeth module.
It used to work fine on my old kernel (2.6.18.5), but since I built a new kernel (2.6.20.6) and it no longer works.
If I do "modprobe forcedeth", it loads the module but no device files exist in /dev... no /dev/eth0 or /dev/eth1.
What do I do for it to detect my device and create the device file?

Simon Bridge · 04-10-2007, 02:44 AM

http://lkml.org/lkml/2007/2/19/373

... there seem to be lots of forcedeth problem each time there is an upgrade. Congratulations: you own an nvidia chipset

Have you tried disabling MSI in the forcedeth driver?

r00tb33r · 04-10-2007, 02:50 AM

Quote:

Originally Posted by Simon Bridge

http://lkml.org/lkml/2007/2/19/373

... there seem to be lots of forcedeth problem each time there is an upgrade. Congratulations: you own an nvidia chipset

Have you tried disabling MSI in the forcedeth driver?

How do I do that?
...
I am looking at the patch... I'll try it out in the morning. I assume I need to rebuild the modules afterwards, right?

Simon Bridge · 04-10-2007, 03:11 AM

Disabling MSI is a module option. I'd look for information someplace obvious like when you added it in the menuconfig step. The module notes should tell you.

I do not have the required chipset or source so I cannot check for you, sorry.

r00tb33r · 04-10-2007, 05:08 PM

This may be a dumb question, but how do I apply the above patch?
I am not a pro and what I try with the "patch" command is not doing it.

Simon Bridge · 04-11-2007, 07:05 AM

1. make sure you keep a copy of the unpatched source handy.

2. you need to be in the top of the source tree

3. patch <original> <patch>

4. man patch

r00tb33r · 04-12-2007, 01:58 AM

Quote:

Originally Posted by Simon Bridge

1. make sure you keep a copy of the unpatched source handy.

2. you need to be in the top of the source tree

3. patch <original> <patch>

4. man patch

It seems like the patch is for some other version of forcedeth...
heres the output:

Code:

root:# patch forcedeth.c forcedeth.c.patch
patching file forcedeth.c
Hunk #1 FAILED at 3104.
1 out of 1 hunk FAILED -- saving rejects to file forcedeth.c.rej

I started comparing the version of forcedeth.c I have here (0.59) to the patch and they do not appear to be similar, stuff does not fall into the right coordinates either.
I don't know what to do at this point. The version of forcedeth I have with the old kernel is 0.56, I tried compiling it with the new kernel but it is missing some variable declarations so its not gonna do.
I tried 0.57 from 2.6.19.x I think and that compiled but doesn't work just like 0.59.
...
PS MSI is in fact disabled, I checked again and recompiled and still nothing.
*EDIT*
I got the latest stable source tree, 2.6.21-rc6 (patched from 2.6.20) which includes forcedeth 0.60... Gonna give that a try.
Also forgot to thank you for continued assistance... THANKS!!!
*EDIT*
The patch is not for 0.60 either...

Code:

root:# patch forcedeth.c forcedeth.c.patch
patching file forcedeth.c
Hunk #1 FAILED at 3104.
1 out of 1 hunk FAILED -- saving rejects to file forcedeth.c.rej

I am trying it anyway though.

r00tb33r · 04-12-2007, 03:20 PM

Um... Okay, I am officially stupid. If not me, then whoever wrote this software.
All this time it was iptables that was blocking any kind of access. I didn't use to be able to ping anything.
I have to disable for every kernel I build. It blocks everything on boot by default.
Apparently there was nothing for with forcedeth at any point.
Thanks for the help though.

Simon Bridge · 04-16-2007, 08:08 PM

In that case - revise your firewall script

Note: you shouldn't disable the firewall in the kernel or access the internet with no firewall. It is a simple matter to have a different script run at startup so the default rules are replaced.