From: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
To: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>,
jeff@garzik.org, linux-ide@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ata: ahci: power off unused ports
Date: Fri, 9 May 2008 10:14:35 -0700 [thread overview]
Message-ID: <20080509101435.1532364a@appleyard> (raw)
In-Reply-To: <20080509161456.GF6957@csclub.uwaterloo.ca>
On Fri, 9 May 2008 12:14:56 -0400
lsorense@csclub.uwaterloo.ca (Lennart Sorensen) wrote:
> On Fri, May 09, 2008 at 05:06:41PM +0100, Matthew Garrett wrote:
> > Genuinely SATA, or PATA bridged to SATA?
>
> SATA drives using intel 945GM chipset which has two native SATA ports.
>
Most 945s I've seen in implementation have the DVD/drive bay as PATA
bridged to SATA.
But, this is an irrelevant conversation.
For drives controlled by ata_piix, they will continue with the
"hotplug all the time" policy that the rest of libata has until
someone else patches that driver to mark the drives not hotpluggable
based on whatever method they want to use to determine that. As we
get more laptops implementing pure SATA drive bays we can refine
the patch to use ACPI events to turn the phy back on if
laptop vendors continue to use ACPI to generate insert/remove events.
WARNING: multiple messages have this Message-ID (diff)
From: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
To: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
Cc: Matthew Garrett <mjg59@srcf.ucam.org>,
jeff@garzik.org, linux-ide@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ata: ahci: power off unused ports
Date: Fri, 9 May 2008 10:14:35 -0700 [thread overview]
Message-ID: <20080509101435.1532364a@appleyard> (raw)
In-Reply-To: <20080509161456.GF6957@csclub.uwaterloo.ca>
On Fri, 9 May 2008 12:14:56 -0400
lsorense@csclub.uwaterloo.ca (Lennart Sorensen) wrote:
> On Fri, May 09, 2008 at 05:06:41PM +0100, Matthew Garrett wrote:
> > Genuinely SATA, or PATA bridged to SATA?
>
> SATA drives using intel 945GM chipset which has two native SATA ports.
>
Most 945s I've seen in implementation have the DVD/drive bay as PATA
bridged to SATA.
But, this is an irrelevant conversation.
For drives controlled by ata_piix, they will continue with the
"hotplug all the time" policy that the rest of libata has until
someone else patches that driver to mark the drives not hotpluggable
based on whatever method they want to use to determine that. As we
get more laptops implementing pure SATA drive bays we can refine
the patch to use ACPI events to turn the phy back on if
laptop vendors continue to use ACPI to generate insert/remove events.
next prev parent reply other threads:[~2008-05-09 17:21 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-08 23:10 [PATCH] ata: ahci: power off unused ports Kristen Carlson Accardi
2008-05-08 23:37 ` Matthew Garrett
2008-05-08 23:35 ` Kristen Carlson Accardi
2008-05-09 0:14 ` Matthew Garrett
2008-05-09 0:28 ` Kristen Carlson Accardi
2008-05-09 15:58 ` Lennart Sorensen
2008-05-09 16:06 ` Matthew Garrett
2008-05-09 16:14 ` Lennart Sorensen
2008-05-09 17:14 ` Kristen Carlson Accardi [this message]
2008-05-09 17:14 ` Kristen Carlson Accardi
2008-05-09 15:06 ` Mark Lord
2008-05-09 15:28 ` Port control interface (was Re: [PATCH] ata: ahci: power off unused ports) Jeff Garzik
2008-05-27 3:08 ` [PATCH] ata: ahci: power off unused ports Theodore Tso
2008-05-27 21:32 ` Kristen Carlson Accardi
2008-05-27 22:59 ` Theodore Tso
2008-05-27 23:32 ` Kristen Carlson Accardi
2008-05-31 8:00 ` Pavel Machek
2008-06-01 19:16 ` Jeff Garzik
2008-06-02 7:04 ` Alan Cox
2008-06-02 7:43 ` Jeff Garzik
2008-06-02 8:22 ` Alan Cox
2008-06-02 9:48 ` Jeff Garzik
2008-06-02 13:54 ` Alan Cox
2008-06-02 16:55 ` Kristen Carlson Accardi
2008-06-02 13:03 ` Mark Lord
2008-06-02 16:07 ` Jeff Garzik
2008-06-02 17:00 ` Kristen Carlson Accardi
2008-06-02 17:45 ` Jeff Garzik
2008-06-02 17:47 ` Kristen Carlson Accardi
2008-06-02 18:15 ` Jeff Garzik
2008-06-02 18:16 ` Kristen Carlson Accardi
2008-06-02 18:30 ` Ric Wheeler
2008-06-02 18:40 ` Jeff Garzik
2008-06-02 18:49 ` Ric Wheeler
2008-06-02 18:52 ` Jeff Garzik
2008-06-02 20:00 ` Matthew Garrett
2008-06-02 18:38 ` Jeff Garzik
2008-06-03 16:49 ` Kristen Carlson Accardi
2008-06-02 17:07 ` Greg Freemyer
2008-06-02 16:57 ` Kristen Carlson Accardi
2008-06-02 17:44 ` Jeff Garzik
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