[ipxe-devel] Link detection on Atheros AR8132

[Sven Dreyer]

Hi list,

I've got a problem with the built-in LAN connection of a Asus EeePC 1005 PE.

I use Linux kernel 3.5 on the EeePC. When plugging a cable in, the link 
LED on the switch goes on after about half a second, DHCP starts and the 
link is usable.

lspci reports the chip as:
01:00.0 Ethernet controller: Qualcomm Atheros AR8132 Fast Ethernet (rev c0)

The problem now is: using iPXE, it does not detect the link correctly. 
When iPXE says "Link:up", the link LED on the switch is still off. It 
takes another 13 seconds until it goes on. During this time, iPXE runs 
into a DHCP timeout, I think.

Find attached two screenshots built with "DEBUG=undionly:3,undinet:3".

I use ipxe.kpxe (c3d1), which does not have a native driver and falls 
back to UNDI, if I got it right. But the problem is not related any 
specific version of iPXE.

My workaround up to now was: wait until the iPXE banner appears, press 
"Pause", watch the switch until the light goes on, and press space to 
end pausing. Then everything works okay.

Is there anything I could do to track down the problem? Further debug 
options that make sense?

Thanks and best regards,
Sven

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