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

Jeff Garzik
2005-12-10T02:39:21Z

Matthew Garrett wrote:
> On Fri, Dec 09, 2005 at 07:40:08PM -0500, Jeff Garzik wrote:
>
>
>>ICH6 and ICH7 support it just fine, through the normal SATA PHY
>>registers. ICH5 only support it if you are clever :)
>
>
> ICH6 supports it even in non-AHCI mode? You may want to update the
> website, then :)

Yes, its a bit outdated. I just found out that ICH6/7 supports access
to SATA PHY registers even in non-AHCI mode.

>>Further, although one can detect hot-unplug on ICH5, hotplug is probably
>>not detectable without polling or SMI.
>
>
> ACPI allows us to detect hotplug on ICH5, which sounds like a good
> argument for its inclusion.

One special case (ICH5 hotplug, but not ICH5 hot unplug), when all other
cases are handled in the normal way?

That's not a good argument at all.

Jeff