linux-kernel - Re: [PATCH 21/21]: powerpc/cell spidernet DMA coalescing

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Message-ID: <452C2AAA.5070001@austin.ibm.com>
Date:	Tue, 10 Oct 2006 18:20:10 -0500
From:	jschopp <jschopp@...tin.ibm.com>
To:	Linas Vepstas <linas@...tin.ibm.com>
CC:	akpm@...l.org, jeff@...zik.org, Arnd Bergmann <arnd@...db.de>,
	netdev@...r.kernel.org, James K Lewis <jklewis@...ibm.com>,
	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org
Subject: Re: [PATCH 21/21]: powerpc/cell spidernet DMA coalescing

Linas Vepstas wrote:
> The current driver code performs 512 DMA mappns of a bunch of 
> 32-byte structures. This is silly, as they are all in contiguous 
> memory. Ths patch changes the code to DMA map the entie area
> with just one call.
> 
> Signed-off-by: Linas Vepstas <linas@...tin.ibm.com>
> Cc: James K Lewis <jklewis@...ibm.com>
> Cc: Arnd Bergmann <arnd@...db.de>

The others look good, but this one complicates the code and doesn't have any benefit.  20 
for 21 isn't bad.
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