Re: [PATCH] ata: ahci: power off unused ports

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To: Jeff Garzik <jeff@...>
Cc: Mark Lord <liml@...>, Alan Cox <alan@...>, Pavel Machek <pavel@...>, Theodore Tso <tytso@...>, <linux-ide@...>, <linux-kernel@...>
Date: Monday, June 2, 2008 - 2:16 pm

On Mon, 02 Jun 2008 14:15:27 -0400
Jeff Garzik <jeff@garzik.org> wrote:

Not all drivers will need a user interface to turn off hotplug
I would think.  At any rate - I would think it'd be better to let
driver writers decide how they want their drivers to behave wrt
hotplug and power instead of forcing a generic policy on everyone.

This patch would provide users of AHCI controllers a way to save
power now, while you work on the grand scheme for polling/turning on off
hotplug via sysfs.  It's an interim solution that impacts nobody but
ahci users and is can be easily integrated into whatever solution you
eventually work out.


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Messages in current thread:
[PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Thu May 8, 7:10 pm)
Re: [PATCH] ata: ahci: power off unused ports, Theodore Tso, (Mon May 26, 11:08 pm)
Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Tue May 27, 5:32 pm)
Re: [PATCH] ata: ahci: power off unused ports, Theodore Tso, (Tue May 27, 6:59 pm)
Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Tue May 27, 7:32 pm)
Re: [PATCH] ata: ahci: power off unused ports, Pavel Machek, (Sat May 31, 4:00 am)
Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Sun Jun 1, 3:16 pm)
Re: [PATCH] ata: ahci: power off unused ports, Alan Cox, (Mon Jun 2, 3:04 am)
Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 3:43 am)
Re: [PATCH] ata: ahci: power off unused ports, Mark Lord, (Mon Jun 2, 9:03 am)
Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Mon Jun 2, 12:57 pm)
Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 1:44 pm)
Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 12:07 pm)
Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Mon Jun 2, 1:00 pm)
Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 1:45 pm)
Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Mon Jun 2, 1:47 pm)
Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 2:15 pm)
Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Mon Jun 2, 2:16 pm)
Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 2:38 pm)
Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Tue Jun 3, 12:49 pm)
Re: [PATCH] ata: ahci: power off unused ports, Ric Wheeler, (Mon Jun 2, 2:30 pm)
Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 2:40 pm)
Re: [PATCH] ata: ahci: power off unused ports, Matthew Garrett, (Mon Jun 2, 4:00 pm)
Re: [PATCH] ata: ahci: power off unused ports, Ric Wheeler, (Mon Jun 2, 2:49 pm)
Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 2:52 pm)
Re: [PATCH] ata: ahci: power off unused ports, Greg Freemyer, (Mon Jun 2, 1:07 pm)
Re: [PATCH] ata: ahci: power off unused ports, Alan Cox, (Mon Jun 2, 4:22 am)
Re: [PATCH] ata: ahci: power off unused ports, Jeff Garzik, (Mon Jun 2, 5:48 am)
Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Mon Jun 2, 12:55 pm)
Re: [PATCH] ata: ahci: power off unused ports, Alan Cox, (Mon Jun 2, 9:54 am)
Re: [PATCH] ata: ahci: power off unused ports, Mark Lord, (Fri May 9, 11:06 am)
Re: [PATCH] ata: ahci: power off unused ports, Matthew Garrett, (Thu May 8, 7:37 pm)
Re: [PATCH] ata: ahci: power off unused ports, Lennart Sorensen, (Fri May 9, 11:58 am)
Re: [PATCH] ata: ahci: power off unused ports, Matthew Garrett, (Fri May 9, 12:06 pm)
Re: [PATCH] ata: ahci: power off unused ports, Lennart Sorensen, (Fri May 9, 12:14 pm)
Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Fri May 9, 1:14 pm)
Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Thu May 8, 7:35 pm)
Re: [PATCH] ata: ahci: power off unused ports, Matthew Garrett, (Thu May 8, 8:14 pm)
Re: [PATCH] ata: ahci: power off unused ports, Kristen Carlson Accardi, (Thu May 8, 8:28 pm)