netdev - Re: [PATCH 1/2] pcnet32: only allocate init

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Message-ID: <20070307031011.GA4281@linux-mips.org>
Date:	Wed, 7 Mar 2007 03:10:11 +0000
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	Don Fry <pcnet32@...izon.net>
Cc:	jgarzik@...ox.com, netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] pcnet32: only allocate init_block dma consistent

On Tue, Mar 06, 2007 at 10:45:23AM -0800, Don Fry wrote:

> The patch below moves the init_block out of the private struct and
> only allocates init block with pci_alloc_consistent. 
> 
> This has two effects:
> 
> 1. Performance increase for non cache coherent machines, because the
>    CPU only data in the private struct are now cached

This small change btw. delivers about ~ 3% extra performance on a very
slow test system.

  Ralf
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