On Tue, May 24 2005, Hannes Reinecke wrote:

Jeff Garzik wrote:
[ .. ]

quoted

Longer term, SATA PM through SCSI will have three facets:

* Device PM.  This is best handled by the device class driver (sd/sr/st).

* Bus PM.  This is best handled by the transport class driver (need to
write for SATA and SAS).

* Host PM.  This is handled in the obvious manner, using existing PM
driver hooks.  PCI D0/D3, etc.

I can describe how this will look when libata is divorced from SCSI, if
you would like, too...

Divorced from SCSI? Care to elaborate?

libata being a scsi citizen was just a temporary solution, Jeff has
promised to turn it into a real block driver for years :)

-- 
Jens Axboe