Auke,

heres part of something i promised. 
I couldnt do any packet testing on because 82571EB is disabled in the
driver. I uncommented the code out in the table, but the best i could
get was the module loading, some probing and some sysfs renaming
failures (probably a debianism); the machine access is intermittent, so
thats as far as i could go. In any case, you probably have a good reason
for disabling that chip. So, heres the patch, the burden of testing now
falls on you ;->
Once you have 82571EB on and kicking, my next steps are to kill LLTX
then add batching on top.
BTW, since this driver is just for PCIE, would you take a similar patch
for non-PCIE e1000?

comment:
There used to be an "mmiowb()" call right after the dma wake which is
gone now; is this unneeded with pcie? I have restored it, look for the
"XXX".

cheers,
jamal