[Avila] Problem with wds bridging on avila board

[Joel Lindsay]

Hi Tim,

I am using the 2.6.15 kernel, as that is what came with my avila dev kit and
I haven't upgraded.  Do you know if this will work with the GPL drivers?

I am using Gateworks 2347 board with atheros and madwifi.

The thing that struck me as most odd was that the problem only occurred when
connected to my LAN (with all the associated network and broadcast traffic)
but it worked perfectly when just straight bridging 2 laptops.  This was
very similar to what I saw with the intel drivers before using
npe_learning=0, which is why I thought they might be related.

Maybe I will need to upgrade my kernel and try out the GPL drivers, or
possibly the problem is something else.  I have had some ideas from some
other board users that I will try.

Thanks for the help!

Joel

-----Original Message-----
From: Tim Harvey [mailto:tim_harvey at yahoo.com] 
Sent: May 13, 2007 8:51 PM
To: Avila
Subject: Re: [Avila] Problem with wds bridging on avila board
Subject: [Avila] Joel,

What board are you using?  What are you using for WiFi/WDS (Atheros cards w/
madwifi?).  I assume your setting everything up on the same subnet (bridge)
vs
routing?  I do what your talking about all the time both with the IAL and
GPL
NPE drivers.

As for the GPL NPE driver, I've had it working on 2.6.18 and 2.6.19 using
the
patches at http://trac.nslu2-linux.org/kernel/browser/trunk/patches.  I
noticed
that they no longer have the 2.6.18/19 patches there but you should find
them
if you go back in their subversion rev's you'll find them.  I have no reason
to
believe the patches they have for 2.6.20/21 would give you any compile
problems, I just haven't moved to that kernel.  I never had any compile
issues
but I could see issues if your trying to put the driver on other kernels -
there were a few changes that affect the driver between 2.6.18-2.6.21

Tim

--- Joel Lindsay <joel at waveteq.com> wrote:

>  
> 
>  
> 
> I am seeing a weird problem.  When I create a wds link between 2 avila
> boards with a laptop connected on both ends, everything works just as
> expected.  When I take one end and put it on my network, suddenly I can't
> ping past the board on that network side.  Its like the packets are being
> dropped, but only when its part of a larger network (switch, then router)
> 
>  
> 
> It seems very similar to a former problem that was caused by multicast
> traffic and was solved by setting the argument npe_learning=0 when
> modprobing the ethernet driver.  This leads me to believe it is again a
ixp
> npe problem.
> 
>  
> 
> I have tried compiling the GPL Ethernet driver to see if this helps, but
am
> having no luck as I keep getting mutex errors that I can't seem to make go
> away.
> 
>  
> 
> Has anyone seen this problem before?  Anyone know how to fix it?  Is it
> another npe problem?
> 
>  
> 
> Any help appreciated.
> 
>  
> 
> Joel Lindsay
> 
> 

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