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Re: Tigon3 5701 PCI-X recv performance problem

To: Andi Kleen <ak@xxxxxxx>
Subject: Re: Tigon3 5701 PCI-X recv performance problem
From: Steve Modica <modica@xxxxxxx>
Date: Sat, 11 Oct 2003 08:17:26 -0500
Cc: "David S. Miller" <davem@xxxxxxxxxx>, johnip@xxxxxxx, netdev@xxxxxxxxxxx, jgarzik@xxxxxxxxx, jes@xxxxxxx
In-reply-to: <20031010192036.GA31727@xxxxxxxxxxxxx>
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Andi Kleen wrote:

Customers running Suse on Altix have to edit modules.conf anyhow so they use the tg3 module (instead of bcm). So when they do this, we could easily have them add an argument to the modules.conf line and we avoid a kernel build. This let's us run with a standard ia64 kernel.

Doesn't it already have a rx_copy_break argument? If yes just set it to
zero and it will always copy. If not add it.

The problem with this solution is that it also impacts 5704 cards, which don't have the alignment issue. We are figuring all this out. We may just switch over completely and replace the 5701 cards.

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