netdev - Re: [PATCH 3/3] chelsio: more rx speedup

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Message-Id: <200701100930.12798.netdev@axxeo.de>
Date:	Wed, 10 Jan 2007 09:30:12 +0100
From:	Ingo Oeser <netdev@...eo.de>
To:	Stephen Hemminger <shemminger@...l.org>
Cc:	Jeff Garzik <jgarzik@...ox.com>, netdev@...r.kernel.org
Subject: Re: [PATCH 3/3] chelsio: more rx speedup

Stephen Hemminger schrieb:
> On Tue, 9 Jan 2007 09:42:03 +0100
> Ingo Oeser <netdev@...eo.de> wrote:
> > Stephen Hemminger schrieb:
> > > --- netdev-2.6.orig/drivers/net/chelsio/sge.c
> > > +++ netdev-2.6/drivers/net/chelsio/sge.c
> > Please use NET_IP_ALIGN here:
> 
> Wrong, NET_IP_ALIGN is intended to deal with platforms where alignment of DMA is more
> important of alignment of structures.  Therefore if data is copied, it should
> always be 2.

Ah! Thanks for clearing this up. These magic numbers always make my head spin
so I tried to come up with sth. useful :-)

If this pattern is present in many drivers, we might have a define or helper for this.


Regards

Ingo Oeser
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