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From: Andrew Grover <andy.grover@gmail.com>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>,
	Christoph Hellwig <hch@infradead.org>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	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
Subject: Re: [ACPI] Re: RFC: ACPI/scsi/libata integration and hotswap
Date: Fri, 9 Dec 2005 19:47:48 -0800	[thread overview]
Message-ID: <c0a09e5c0512091947o4c3d8fd5y10a6b089655d216e@mail.gmail.com> (raw)
In-Reply-To: <439A4422.3030808@pobox.com>

On 12/9/05, Jeff Garzik <jgarzik@pobox.com> wrote:

> Yes, I do agree with this WRT PATA.  Randy Dunlap's ACPI stuff is
> particularly interesting for this, though I haven't had time to review
> it in depth.
>
> I'm a bit more reluctant WRT SATA.

(side note: Shaohua's patch added ACPI support to PATA. Randy's was
the SATA ACPI support.)

ACPI 3.0 specifically mentions SATA and the control methods that it
expects the OS to make use of: _SDD and _GTF. This is needed for
things like HD password unlocking. So, someone needs to be handling
this whenever the SATA drive is reinitialized, such as on resume. So
there's gotta be some SATA ACPI code, somewhere. (And if there is,
then handling the ICH5 ACPI hotplug interrupt seems like maybe
something it should handle, too.)

I'm sure it's possible to properly abstract things so that
arch-neutral code can remain ACPI-unaware -- I just wanted to make it
clear that even if you don't support ICH5 hotplug there are still ACPI
requirements for SATA.

Regards -- Andy

  reply	other threads:[~2005-12-10  3:47 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-08  3:02 RFC: ACPI/scsi/libata integration and hotswap Matthew Garrett
2005-12-08  9:15 ` Christoph Hellwig
2005-12-08 13:26   ` Matthew Garrett
2005-12-08 13:33     ` Christoph Hellwig
2005-12-08 13:39       ` Matthew Garrett
2005-12-08 13:44         ` Christoph Hellwig
2005-12-08 17:18           ` Erik Slagter
2005-12-08 20:43             ` Jeff Garzik
2005-12-08 21:03               ` Dominic Ijichi
2005-12-08 21:09                 ` Jeff Garzik
     [not found]                   ` <4398A0F9.9050900-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
2005-12-08 21:34                     ` Dominic Ijichi
2005-12-08 21:34                       ` Dominic Ijichi
2005-12-08 21:31               ` Randy Dunlap
2005-12-09  9:45                 ` Erik Slagter
2005-12-09 10:39                   ` Jens Axboe
2005-12-09 10:45                     ` Erik Slagter
2005-12-09 11:27                       ` Jeff Garzik
2005-12-09 11:35                         ` Erik Slagter
2005-12-09 11:40                           ` Christoph Hellwig
2005-12-09 11:46                           ` Jens Axboe
2005-12-09 11:55                             ` Matthew Garrett
     [not found]                               ` <20051209115511.GA25842-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2005-12-09 13:22                                 ` Bartlomiej Zolnierkiewicz
2005-12-09 13:22                                   ` Bartlomiej Zolnierkiewicz
2005-12-09 12:01                             ` Erik Slagter
     [not found]                               ` <1134129692.27633.58.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2005-12-09 12:07                                 ` Jens Axboe
2005-12-09 12:07                                   ` Jens Axboe
2005-12-10  2:19                         ` Douglas Gilbert
     [not found]                           ` <439A3B15.5010608-c4O3jRSCrQ+sTnJN9+BGXg@public.gmane.org>
2005-12-14 20:52                             ` Matthew Wilcox
2005-12-14 20:52                               ` [ACPI] " Matthew Wilcox
     [not found]                       ` <1134125145.27633.32.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2005-12-09 11:30                         ` Jens Axboe
2005-12-09 11:30                           ` Jens Axboe
2005-12-09  3:28               ` Mark Lord
2005-12-09 11:29                 ` Jeff Garzik
     [not found]                   ` <43996A84.5020307-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
2005-12-10  4:01                     ` Mark Lord
2005-12-10  4:01                       ` Mark Lord
2005-12-08 13:52         ` Jeff Garzik
2005-12-08 14:07           ` [ACPI] " Alan Cox
2005-12-08 14:14             ` Jeff Garzik
2005-12-08 14:30               ` Alan Cox
2005-12-08 14:43                 ` Matthew Garrett
2005-12-08 14:53                   ` Alan Cox
2005-12-09 11:42                 ` Jeff Garzik
2005-12-08 14:12           ` Matthew Garrett
2005-12-08 14:01         ` Alan Cox
2005-12-08 14:18           ` Matthew Garrett
2005-12-08 14:33             ` Alan Cox
2005-12-08 14:52               ` Matthew Garrett
2005-12-08 14:55                 ` Alan Cox
2005-12-08 17:19                 ` Matthew Garrett
2005-12-09 11:42                   ` Christoph Hellwig
     [not found]                     ` <20051209114246.GB16945-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2005-12-09 11:49                       ` Jeff Garzik
2005-12-09 11:49                         ` Jeff Garzik
2005-12-09 11:52                         ` Matthew Garrett
     [not found]                           ` <20051209115235.GB25771-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2005-12-09 11:58                             ` Jeff Garzik
2005-12-09 11:58                               ` Jeff Garzik
2005-12-09 12:11                               ` Matthew Garrett
2005-12-09 12:16                                 ` Jeff Garzik
2005-12-09 12:24                                   ` Matthew Garrett
2005-12-10  0:40                                     ` Jeff Garzik
2005-12-10  2:34                                       ` Matthew Garrett
2005-12-10  2:39                                         ` Jeff Garzik
2005-12-10  2:47                                           ` Matthew Garrett
2005-12-10  2:41                                         ` Jeff Garzik
2005-12-10  2:50                                           ` Matthew Garrett
2005-12-10  2:57                                             ` Jeff Garzik
2005-12-10  3:47                                               ` Andrew Grover [this message]
2005-12-12  0:38                                           ` Alan Cox
2005-12-09 11:50                     ` Matthew Garrett
2005-12-09 11:55                       ` Christoph Hellwig
2005-12-13 18:14 ` Randy Dunlap
2005-12-13 18:26   ` Matthew Garrett
2005-12-13 19:07     ` Randy Dunlap

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