Re: [patch 3/3] Enable Aggressive Link Power management for AHCI controllers.

On Tue, 12 Jun 2007 11:46:56 -0400
Jeff Garzik [off-list ref] wrote:

Matthew Garrett wrote:

quoted

On Tue, Jun 12, 2007 at 11:17:14AM -0300, Henrique de Moraes Holschuh wrote:

quoted

On Tue, 12 Jun 2007, Matthew Garrett wrote:

quoted

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 hotplug ;-)   Just like the pci-e
cards use usb2.0 and pci-e hotplug...

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.

Regardless, having a laptop does not imply having a docking bay.

	Jeff

For bay devices, we can use ACPI just like we do now.  For non-bay devices,
we can implement hotplug via polling when ALPM is enabled.  In my experience
most laptop vendors implement extra drive as either PATA in a dock station, 
USB in a dock station, or a bay device either on the dock station, or 
on the laptop itself.


Kristen