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From: Jeff Garzik <jgarzik@pobox.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>,
	Christoph Hellwig <hch@infradead.org>,
	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, 09 Dec 2005 06:42:12 -0500	[thread overview]
Message-ID: <43996D94.5080108@pobox.com> (raw)
In-Reply-To: <1134052257.17102.13.camel@localhost.localdomain>

Alan Cox wrote:
> On Iau, 2005-12-08 at 09:14 -0500, Jeff Garzik wrote:
> 
>>These are only for PATA.  We don't care about _GTM/_STM on SATA.
> 
> 
> Even your piix driver supports PATA. Put the foaming (justified ;))
> hatred for ACPI aside for a moment and take a look at the real world as
> it unfortunately is right now.

First, I clearly said "except on ata_piix ... or PATA"

Second, don't put words in my mouth.  I don't hate ACPI, and libata's 
direction for hotswap and suspend/resume has zero to do with "foaming 
hatred."

Right now, the top priority is getting SATA suspend/resume correct, and 
_hopefully_ doing it in a way that's friendly to PATA.  And as I said, 
we don't care about _GTM/_STM on SATA.

Further, all current ACPI proposed code is completely half-assed.  It's 
"hope and pray", because libata configures the device and does resets -- 
which is bound to CONFLICT WITH ACPI.

Even further, I want to support both ACPI cases (x86[-64]) and non-ACPI 
cases (other arches).  Some platforms want ACPI for passwords or other 
settings.  Some platforms don't have ACPI at all.  Locking libata into 
ACPI _only_ for suspend/resume is completely unacceptable.

I'm not a hope-n-pray kind of guy.  I want to get it right.  People are 
more than welcome to use unapplied patches floating around the 'net 
until we get there.

	Jeff



  parent reply	other threads:[~2005-12-09 11:42 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 [this message]
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                                               ` [ACPI] " Andrew Grover
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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