From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: RFC: ACPI/scsi/libata integration and hotswap Date: Fri, 09 Dec 2005 21:39:21 -0500 Message-ID: <439A3FD9.40308@pobox.com> References: <20051208145257.GB21946@srcf.ucam.org> <20051208171901.GA22451@srcf.ucam.org> <20051209114246.GB16945@infradead.org> <20051209114944.GA1068@havoc.gtf.org> <20051209115235.GB25771@srcf.ucam.org> <43997171.9060105@pobox.com> <20051209121124.GA25974@srcf.ucam.org> <439975AB.5000902@pobox.com> <20051209122457.GB26070@srcf.ucam.org> <439A23E8.3080407@pobox.com> <20051210023426.GA31220@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20051210023426.GA31220@srcf.ucam.org> Sender: linux-kernel-owner@vger.kernel.org To: Matthew Garrett Cc: Christoph Hellwig , Alan Cox , randy_d_dunlap@linux.intel.com, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, acpi-devel@lists.sourceforge.net List-Id: linux-ide@vger.kernel.org Matthew Garrett wrote: > On Fri, Dec 09, 2005 at 07:40:08PM -0500, Jeff Garzik wrote: > > >>ICH6 and ICH7 support it just fine, through the normal SATA PHY >>registers. ICH5 only support it if you are clever :) > > > ICH6 supports it even in non-AHCI mode? You may want to update the > website, then :) Yes, its a bit outdated. I just found out that ICH6/7 supports access to SATA PHY registers even in non-AHCI mode. >>Further, although one can detect hot-unplug on ICH5, hotplug is probably >>not detectable without polling or SMI. > > > ACPI allows us to detect hotplug on ICH5, which sounds like a good > argument for its inclusion. One special case (ICH5 hotplug, but not ICH5 hot unplug), when all other cases are handled in the normal way? That's not a good argument at all. Jeff