From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e34.co.us.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTP id 36DF867C06 for ; Wed, 11 Oct 2006 09:20:16 +1000 (EST) Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e34.co.us.ibm.com (8.13.8/8.12.11) with ESMTP id k9ANKD9x009206 for ; Tue, 10 Oct 2006 19:20:13 -0400 Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167]) by d03relay04.boulder.ibm.com (8.13.6/8.13.6/NCO v8.1.1) with ESMTP id k9ANKDdb353476 for ; Tue, 10 Oct 2006 17:20:13 -0600 Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1]) by d03av01.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id k9ANKCEQ000662 for ; Tue, 10 Oct 2006 17:20:13 -0600 Message-ID: <452C2AAA.5070001@austin.ibm.com> Date: Tue, 10 Oct 2006 18:20:10 -0500 From: jschopp MIME-Version: 1.0 To: Linas Vepstas Subject: Re: [PATCH 21/21]: powerpc/cell spidernet DMA coalescing References: <20061010204946.GW4381@austin.ibm.com> <20061010212324.GR4381@austin.ibm.com> In-Reply-To: <20061010212324.GR4381@austin.ibm.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: akpm@osdl.org, jeff@garzik.org, Arnd Bergmann , netdev@vger.kernel.org, James K Lewis , linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 > Cc: James K Lewis > Cc: Arnd Bergmann The others look good, but this one complicates the code and doesn't have any benefit. 20 for 21 isn't bad.