Re: PATA failure with piix, works with libata

[Matthew Garrett]

On Sun, Mar 05, 2006 at 06:40:58PM -0500, Jeff Garzik wrote:
> Matthew Garrett wrote:
> >Ok, it /seems/ that things are happier (though still not entirely happy) 
> >if I explicitly acknowledge the interrupt by writing the dma status 
> >register back again. This doesn't seem to be done anywhere in the IDE 
> >interrupt routine, but is in the libata one. I'm afraid I don't 
> >understand IDE well enough to have any idea what's going on here - is it 
> >possible that a piix in native mode (rather than legacy mode) and 
> >sharing an interrupt needs some special handling?
> 
> ICH definitely needs that irq ack...

Yeah, this is an ICH7. I can't find anything in drivers/ide that would 
result in it being done, which is why I'm kind of confused. ide_ack_intr 
seems to be defined to do nothing on x86 since IDE_ARCH_ACK_INTR isn't 
defined there?

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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