Re: [patch 2/4] Expose Power Management Policy option to users

[Pavel Machek]

Hi!

> This patch will modify the scsi subsystem to allow
> users to set a power management policy for the link.
> 
> The scsi subsystem will create a new sysfs file for each
> host in /sys/class/scsi_host called "link_power_management_policy".
> This file can have 3 possible values:
> 
> Value		Meaning
> -------------------------------------------------------------------
> min_power	User wishes the link to conserve power as much as
> 		possible, even at the cost of some performance
> 
> max_performance User wants priority to be on performance, not power
> 		savings
> 
> medium_power	User wants power savings, with less performance cost
> 		than min_power (but less power savings as well).

Has that anything to do with HIPM vs. DIPM? 

							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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