This patch will set the correct bits to turn on Aggressive
Link Power Management (ALPM) for the ahci driver. This
will cause the controller and disk to negotiate a lower
power state for the link when there is no activity (see
the AHCI 1.x spec for details). This feature is mutually
exclusive
On Fri, 22 Jun 2007 21:00:00 +0200
Jens Axboe [EMAIL PROTECTED] wrote:
Exactly, it needs to be handled by some power management daemon anyway
and be integrated with power savings in general. You could use io load
to determine when to enable/disable alpm, for instance.
Acked-by: Kristen
On Thu, 21 Jun 2007 15:08:32 +0200
Jens Axboe [EMAIL PROTECTED] wrote:
On Wed, Jun 20 2007, Kristen Carlson Accardi wrote:
Enable Aggressive Link Power management for AHCI controllers.
This patch will set the correct bits to turn on Aggressive
Link Power Management (ALPM) for the ahci
On Fri, Jun 22 2007, Kristen Carlson Accardi wrote:
On Thu, 21 Jun 2007 15:08:32 +0200
Jens Axboe [EMAIL PROTECTED] wrote:
On Wed, Jun 20 2007, Kristen Carlson Accardi wrote:
Enable Aggressive Link Power management for AHCI controllers.
This patch will set the correct bits to turn
On Wed, Jun 20 2007, Kristen Carlson Accardi wrote:
Enable Aggressive Link Power management for AHCI controllers.
This patch will set the correct bits to turn on Aggressive
Link Power Management (ALPM) for the ahci driver. This
will cause the controller and disk to negotiate a lower
power
Enable Aggressive Link Power management for AHCI controllers.
This patch will set the correct bits to turn on Aggressive
Link Power Management (ALPM) for the ahci driver. This
will cause the controller and disk to negotiate a lower
power state for the link when there is no activity (see
the AHCI
On Tue, Jun 12, 2007 at 09:18:19AM -0300, Henrique de Moraes Holschuh wrote:
On Tue, 12 Jun 2007, Matthew Garrett wrote:
On laptops, I suspect that we'll probably get an ACPI interrupt even if
the AHCI hotplug pathway can't manage.
As long as we don't crash the drive or AHCI controller
On Tue, 12 Jun 2007, Matthew Garrett wrote:
On Tue, Jun 12, 2007 at 09:18:19AM -0300, Henrique de Moraes Holschuh wrote:
On Tue, 12 Jun 2007, Matthew Garrett wrote:
On laptops, I suspect that we'll probably get an ACPI interrupt even if
the AHCI hotplug pathway can't manage.
As
Matthew Garrett wrote:
On Tue, Jun 12, 2007 at 11:17:14AM -0300, Henrique de Moraes Holschuh wrote:
On Tue, 12 Jun 2007, Matthew Garrett wrote:
Laptop bays are designed to deal with hotplugging PATA - I don't think
this is too much of an issue :)
The new SATA ones use the SATA hardware
Matthew Garrett wrote:
On Tue, Jun 12, 2007 at 11:17:14AM -0300, Henrique de Moraes Holschuh wrote:
On Tue, 12 Jun 2007, Matthew Garrett wrote:
Laptop bays are designed to deal with hotplugging PATA - I don't think
this is too much of an issue :)
The new SATA ones use the SATA hardware
On Wed, Jun 13, 2007 at 12:45:21AM +0900, Tejun Heo wrote:
Matthew Garrett wrote:
Yes, but they'll also send an ACPI interrupt even if the SATA host
controller doesn't - it's part of the spec for bays.
Does the spec mandate that the ACPI interrupt shouldn't depend on SATA
phy status? I
On Tue, Jun 12, 2007 at 11:46:56AM -0400, Jeff Garzik wrote:
Matthew Garrett wrote:
On Tue, Jun 12, 2007 at 11:17:14AM -0300, Henrique de Moraes Holschuh
wrote:
On Tue, 12 Jun 2007, Matthew Garrett wrote:
Laptop bays are designed to deal with hotplugging PATA - I don't think
this is too
Matthew Garrett wrote:
Excluding the corner case of an Expresscard SATA controller (where I
suspect you'd want different policy), I doubt there are any cases where
you have a laptop with hotplug capabilities without it being implemented
as an ACPI bay.
Cardbus card.
Jeff
-
To
This patch will set the correct bits to turn on Aggressive
Link Power Management (ALPM) for the ahci driver. This
will cause the controller and disk to negotiate a lower
power state for the link when there is no activity (see
the AHCI 1.x spec for details). This feature is mutually
exclusive
Kristen Carlson Accardi wrote:
This patch will set the correct bits to turn on Aggressive
Link Power Management (ALPM) for the ahci driver. This
will cause the controller and disk to negotiate a lower
power state for the link when there is no activity (see
the AHCI 1.x spec for details). This
On Mon, 11 Jun 2007, Kristen Carlson Accardi wrote:
Setting Effect
--
min_power ALPM is enabled, and link set to enter
lowest power state (SLUMBER) when idle
Hot plug not allowed.
Henrique de Moraes Holschuh wrote:
On Mon, 11 Jun 2007, Kristen Carlson Accardi wrote:
Setting Effect
--
min_power ALPM is enabled, and link set to enter
lowest power state (SLUMBER) when idle
Hot plug not
Arjan van de Ven [EMAIL PROTECTED] writes:
Henrique de Moraes Holschuh wrote:
On Mon, 11 Jun 2007, Kristen Carlson Accardi wrote:
Setting Effect
--
min_power ALPM is enabled, and link set to enter lowest
power
On Mon, 11 Jun 2007, Jeff Garzik wrote:
on/off doesn't really make sense if the question is do you favor power
or do you favor performance...
Actually, it does if you think of it as do you need hotplug right now or
not?.
How about just making it a numeric scale with 0 meaning no power
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