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RE: e1000 performance hack for ppc64 (Power4)

To: "Anton Blanchard" <anton@xxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxx>
Subject: RE: e1000 performance hack for ppc64 (Power4)
From: "Feldman, Scott" <scott.feldman@xxxxxxxxx>
Date: Fri, 13 Jun 2003 16:52:18 -0700
Cc: <haveblue@xxxxxxxxxx>, <hdierks@xxxxxxxxxx>, <dwg@xxxxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, <milliner@xxxxxxxxxx>, <ricardoz@xxxxxxxxxx>, <twichell@xxxxxxxxxx>, <netdev@xxxxxxxxxxx>
Sender: netdev-bounce@xxxxxxxxxxx
Thread-index: AcMyAnKU0XzTrYR3SGmq2WX57ZZcjAABAyWw
Thread-topic: e1000 performance hack for ppc64 (Power4)
> > 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?

I thought the answer was no, so I double checked with a couple of
hardware guys, and the answer is still no.

-scott


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