From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763792AbXGFJ6q (ORCPT ); Fri, 6 Jul 2007 05:58:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759416AbXGFJ6h (ORCPT ); Fri, 6 Jul 2007 05:58:37 -0400 Received: from py-out-1112.google.com ([64.233.166.176]:51208 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1763631AbXGFJ6g (ORCPT ); Fri, 6 Jul 2007 05:58:36 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:from:to:subject:date:user-agent:cc:references:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:message-id; b=SviDUn4DToFltiwb7r0YO5IHDpPd8DcAAWu9oXWcSG1DSpVnsKT9kcaYEDhui3hNhuU5fT22O1r1A2pOBihphy094RDQMiCpGwCXg14GrlxqY9PBLaJSWTRGQT+4wwYIegJEygB9OepW8JRNgpFO0rw4P+b0QBTYBmAAmtpnpBI= From: Suren Karapetyan To: Christoph Pleger Subject: Re: PATA-disk named sda Date: Fri, 6 Jul 2007 14:58:06 +0500 User-Agent: KMail/1.9.6 Cc: linux-kernel@vger.kernel.org References: <20070706102132.14fbc600.Christoph.Pleger@cs.uni-dortmund.de> <200707061413.53182.surenkarapetyan@gmail.com> <20070706113618.1d5e216a.Christoph.Pleger@cs.uni-dortmund.de> In-Reply-To: <20070706113618.1d5e216a.Christoph.Pleger@cs.uni-dortmund.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200707061458.19838.surenkarapetyan@gmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Friday 06 July 2007 14:36:18 Christoph Pleger wrote: > Hello, > > > In recent kernels both PATA and SATA (SCSI too) drives are handled by > > libata library. It calls all the drives sd* . > > If so, what about the use of hdparm then? I could not change parameters > like DMA, MultSectIO and 32-Bit support with hdparm. sdparm also did not > do that work. > > Regards > Christoph > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ There was a discussion about this on http://www.redhat.com/archives/fedora-devel-list/2007-April/msg01079.html Which concludes with what Alan Cox wrote. "In DMA modes the 32bit I/O feature and multi-sector mode are not used. For the moment libata also only supports 32bit PIO on some controllers and for those it si handled automatically. Over time it may well gain 32bit support for more, but again the goal is it will be entirely automatically done if so."