From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: Serial ATA (SATA) for Linux status report Date: Wed, 03 Dec 2003 18:36:28 -0500 Sender: linux-kernel-owner@vger.kernel.org Message-ID: <3FCE737C.1080105@pobox.com> References: <20031203204445.GA26987@gtf.org> <1070494030.15415.111.camel@slurv.pasop.tomt.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1070494030.15415.111.camel@slurv.pasop.tomt.net> To: Andre Tomt Cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org List-Id: linux-ide@vger.kernel.org Andre Tomt wrote: > On Wed, 2003-12-03 at 21:44, Jeff Garzik wrote: > >>Intel ICH5 >>---------- >>Summary: No TCQ. Looks like a PATA controller, but with a few added, >>non-standard SATA port controls. > One question - with "including hotplug", does that mean some set hotplug > standard? Reason I'm asking is, we have a few servers from SuperMicro, > with a ICH5R S-ATA controller that claims it's supporting hotplug, but > hotplug is not in your ICH5-summary. Alas, there is no hotplug support in the ICH5 or ICH5-R SATA hardware. One could argue there is "coldplug" support in that hardware -- disable the entire interface, including any active devices, then re-enable and re-scan -- but it's a bit of a hack. If there's enough demand, I could write some code for that. It would involve something like # /sbin/sata off { plug in or remove a device } # /sbin/sata on You really, really, really don't want to actually unplug a SATA drive while it's active, on ICH5 hardware. Jeff