Network driver documentation

lazarobankini · 02-12-2013, 12:08 PM

Hello,
I'm trying to make a simple tweak in source of existing networking driver and i'm having a hard time finding the right documentation for nic drivers, kernel >2.6. I'm just starting with this and i'm very easily mislead by lots of outdated examples and concepts. Any document recommendation that you find valuable in this manner would be great.

Thanks

Kustom42 · 02-12-2013, 12:15 PM

What kind of tweak are you trying to do? There are different modules that your system may be using for your networking so the first step is to tell us what you are trying to tweak so you can make sure to get the right answer.

If you just want to do some basic ipv4 tuning you can specify parameters in your sysctl, like ipv4 forwarding etc..

lazarobankini · 02-13-2013, 05:18 AM

Quote:

Originally Posted by Kustom42

What kind of tweak are you trying to do? There are different modules that your system may be using for your networking so the first step is to tell us what you are trying to tweak so you can make sure to get the right answer.

If you just want to do some basic ipv4 tuning you can specify parameters in your sysctl, like ipv4 forwarding etc..

I've got compat-wireless source code from http://linuxwireless.org/en/users/Download/stable/ and im trying to make driver do something like this:
Upon receiving a message from network, depending on info from some of its headers, do something or forward it to userspace.
I'm aware that this can easily be done in userspace or routing can be configured to be like this and i don't need to mess with drivers, but in interest of future development and research i need this to be done exactly in driver. Take it as a kind of school assignment.

Thanks in advance.

Kustom42 · 02-13-2013, 12:14 PM

You would be rewriting the kernel module source code at that point. Things like IPTables and other software layer solutions are created to route traffic based upon certain conditions.