Re: e1000 performance hack for ppc64 (Power4)

[Anton Blanchard <anton@xxxxxxxxx>]

> Not really... one retransmit and the TCP header size grows
> due to the SACK options.

OK scratch that idea.

> I find it truly bletcherous what you're trying to do here.

I think so too, but its hard to ignore ~100Mbit/sec in performance.

> Why not instead find out if it's possible to have the e1000
> fetch the entire cache line where the first byte of the packet
> resides?  Even ancient designes like SunHME do that.

Rusty and I were wondering why the e1000 didnt do that exact thing.

Scott: is it possible to enable such a thing?

Anton