From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [patch 3/3] Enable Aggressive Link Power management for AHCI controllers. Date: Wed, 13 Jun 2007 00:45:21 +0900 Message-ID: <466EBF91.8060508@gmail.com> 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> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from py-out-1112.google.com ([64.233.166.177]:17291 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757005AbXFLPpd (ORCPT ); Tue, 12 Jun 2007 11:45:33 -0400 Received: by py-out-1112.google.com with SMTP id a29so3322240pyi for ; Tue, 12 Jun 2007 08:45:31 -0700 (PDT) In-Reply-To: <20070612153828.GA13888@srcf.ucam.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Matthew Garrett Cc: Henrique de Moraes Holschuh , Arjan van de Ven , Jeff Garzik , =?ISO-8859-1?Q?Dagfinn_Ilmari_Manns=E5?= =?ISO-8859-1?Q?ker?= , Kristen Carlson Accardi , james.bottomley@steeleye.com, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org 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. Does the spec mandate that the ACPI interrupt shouldn't depend on SATA phy status? I don't think vendors are likely to implement separate mechanism when SATA phy status can do the job fine. -- tejun