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

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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Yes, its a bit outdated.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


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