Re: Stardom SATA HSM violation

[Jeff Garzik]

Tejun Heo wrote:
> Alan Cox wrote:
> > > I think there have been enough cases where this draining was necessary.
> > >  IIRC, ata_piix was involved in those cases, right?  If so, can you
> > > please submit a patch which applies this only to affected controllers?
> > > I don't feel too confident about applying this to all SFF controllers.
> > Old IDE does it on all controllers bar a couple. So we have a very good
> > knowledge of what does/doesn't work. The one that needs care in old ide
> > is an ordering issue where a state machine reset done first causes the
> > drain of the I/O to hang.
>
> Hmmm... So, do we apply draining to all PATA?  Or is ata_piix SATA
> affected too?

I would think all SFF controllers, since a lot of first gen SATA are 
really bridged solutions.  If they are flagging DRQ, I say oblige them :)

	Jeff



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