From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Axboe Subject: Re: Marvell MV88SX6041 SATA Driver PIO4 Mode Not DMA Date: Fri, 11 Nov 2005 13:14:47 +0100 Message-ID: <20051111121447.GQ3699@suse.de> References: <1131648518.26701.247242836@webmail.messagingengine.com> <437471D0.3090404@pobox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from ns.virtualhost.dk ([195.184.98.160]:42353 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S1750703AbVKKMNn (ORCPT ); Fri, 11 Nov 2005 07:13:43 -0500 Content-Disposition: inline In-Reply-To: <437471D0.3090404@pobox.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jeff Garzik Cc: Spencer Tuttle , linux-ide@vger.kernel.org On Fri, Nov 11 2005, Jeff Garzik wrote: > Spencer Tuttle wrote: > >I have just compiled the new 2.6.14 kernel from the gentoo-sources tree. > > > >I can access the drives just fine, but it seems really slow. Here is > >the dmesg output when I load the kernel module > > That's expected, since the driver in 2.6.14 only does PIO mode. > > Try 2.6.14-gitN which supports EDMA. Did you see these as well: blk_queue_max_hw_segments: set to minimum 1 Could it be forgetting to set ->sg_tablesize as well? -- Jens Axboe