From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Woestenberg Subject: Re: Marvell SATA for libata? Date: Mon, 10 May 2004 08:14:14 +0200 Sender: linux-ide-owner@vger.kernel.org Message-ID: <409F1DB6.7050306@mailcan.com> References: <409D84A9.1090107@mailcan.com> <409EEE42.6070201@pobox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from out2.smtp.messagingengine.com ([66.111.4.26]:49850 "EHLO out2.smtp.messagingengine.com") by vger.kernel.org with ESMTP id S264537AbUEJGPd (ORCPT ); Mon, 10 May 2004 02:15:33 -0400 In-Reply-To: <409EEE42.6070201@pobox.com> List-Id: linux-ide@vger.kernel.org To: Jeff Garzik Cc: linux-ide@vger.kernel.org Hello Jeff, Jeff Garzik wrote: > Leon Woestenberg wrote: >> Hello all, Jeff Garzik in particular, >> >> we have interest in having the Marvell 88sx5040 SATA controller work >> under libata. >> >> Did you happen to start development for this controller, as your >> latest libata status report seems to tell so? >> >> We have the Marvell datasheet available (but under NDA) as well as >> the source code from SuperMicro and we would like to convert it to >> the libata framework. > > > In fact, I am working on it right now. > Excellent. Applying as test-bed candidate. :-) > I also have the docs and the driver (albeit officially :)). > I happen to find it at this public customer support FTP server: ftp://ftp.supermicro.com/driver/SATA/DAC_SATA-MV8/ which is officially for the MV8 PCI card, which has the forementioned chip on its PCB. > A non-queueing driver for Marvell will be fairly straightforward. Adding > queueing will be much more of a chore, though. > That makes me wonder, what is the typical performance gain when using any of the command queueing methods? Regards, Leon.