Hannes Frederic Sowa [off-list ref] wrote:

The upstream driver (which is a tarball I found with google
AR81Family-linux-v1.0.1.14.tar.gz) has this function ifdefed out. I
have a couple of more things I want to test as soon as I have access
to the hardware again.  If I don't find a better solution I will
submit a patch which disables rx checksumming as a whole for inclusion
to net-next.

In addition to my other mail: Please have a look at Debian Bug #558426
<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=558426> which is about
TSO and TCP/IPv6 on atl1e which had problems as well.

I wouldn't find it surprising if any offloading or hardware checksumming
is broken on that hardware.

Grüße,
Sven.

-- 
Sigmentation fault. Core dumped.