Re: RFC: ACPI/scsi/libata integration and hotswap

[Jeff Garzik <jgarzik-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>]

Matthew Garrett wrote:
> On Fri, Dec 09, 2005 at 06:49:44AM -0500, Jeff Garzik wrote:
> 
> 
>>If this is just for libata, it's still at the wrong level.
>>
>>libata will eventually make the SCSI simulator optional, which means
>>any acpi_scsi_init() or whatnot won't work for libata.
> 
> 
> It depends on notification whenever a device is added to the scsi bus 
> class, so it needs access to scsi_bus_type. While that could be put in 
> the libata layer, it seems cleaner to leave it in scsi and then add 
> another callback for libata when it moves to its own bus class.

If this is for hotswap, as I noted, libata doesn't need this at all.

If the hardware supports it, then libata will support it directly. 
There is no ACPI-specific magic, because ACPI does nothing but talk to 
the same hardware libata is talking to.

	Jeff





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