Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755552AbXFLQb1 (ORCPT ); Tue, 12 Jun 2007 12:31:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752997AbXFLQbR (ORCPT ); Tue, 12 Jun 2007 12:31:17 -0400 Received: from mga02.intel.com ([134.134.136.20]:8625 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752717AbXFLQbP (ORCPT ); Tue, 12 Jun 2007 12:31:15 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.16,412,1175497200"; d="scan'208";a="253551580" Date: Tue, 12 Jun 2007 09:27:49 -0700 From: Kristen Carlson Accardi To: Jeff Garzik Cc: Matthew Garrett , Henrique de Moraes Holschuh , Arjan van de Ven , Dagfinn Ilmari =?ISO-8859-1?B?TWFubnPla2Vy?= , james.bottomley@steeleye.com, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, htejun@gmail.com Subject: Re: [patch 3/3] Enable Aggressive Link Power management for AHCI controllers. Message-Id: <20070612092749.ff46bc32.kristen.c.accardi@intel.com> In-Reply-To: <466EBFF0.70100@garzik.org> References: <20070612011148.GA9808@khazad-dum.debian.net> <466DF3E9.30303@linux.intel.com> <466DFE09.3020408@garzik.org> <20070612035928.GB9808@khazad-dum.debian.net> <466E1A32.90306@linux.intel.com> <20070612090940.GA9719@srcf.ucam.org> <20070612121819.GA20408@khazad-dum.debian.net> <20070612135010.GA12601@srcf.ucam.org> <20070612141714.GB20408@khazad-dum.debian.net> <20070612153828.GA13888@srcf.ucam.org> <466EBFF0.70100@garzik.org> X-Mailer: Sylpheed 2.3.1 (GTK+ 2.10.8; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1262 Lines: 32 On Tue, 12 Jun 2007 11:46:56 -0400 Jeff Garzik wrote: > Matthew Garrett wrote: > > On Tue, Jun 12, 2007 at 11:17:14AM -0300, Henrique de Moraes Holschuh wrote: > >> On Tue, 12 Jun 2007, Matthew Garrett wrote: > >>> Laptop bays are designed to deal with hotplugging PATA - I don't think > >>> this is too much of an issue :) > >> The new SATA ones use the SATA hardware hotplug ;-) Just like the pci-e > >> cards use usb2.0 and pci-e hotplug... > > > > Yes, but they'll also send an ACPI interrupt even if the SATA host > > controller doesn't - it's part of the spec for bays. > > Regardless, having a laptop does not imply having a docking bay. > > Jeff > For bay devices, we can use ACPI just like we do now. For non-bay devices, we can implement hotplug via polling when ALPM is enabled. In my experience most laptop vendors implement extra drive as either PATA in a dock station, USB in a dock station, or a bay device either on the dock station, or on the laptop itself. Kristen - 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/