On Jul 22, 2007, at 11:36 AM, Jonathan A. Kollasch wrote:

> Hi,
>
> I've been hacking on a Silicon Image 3124, 3132, 3531 driver.  My
> implementation relies on ata(4), like ahcisata(4).  But this
> may not be the best all-around solution.

Wasabi had a 3124 driver that supported NCQ, etc.  It used ata(4).

> Direct your attention now to OpenBSD's ahci(4), sili(4), and  
> atascsi(4).

It's wrong to bolt this stuff underneath SCSI.


>
> They support NCQ and ATAPI already.  On the other hand, I'm not sure  
> if
> this would allow for SMART and whatnot to be used.
>
> Anyone think porting these would be a good idea?
>
> Or, would writing a proper SATA framework be much better?

Well, ATA and SATA use the same command set.  Only the transport is  
different.  You also have the problem of what to do with SATA-I  
controllers that basically behave like a legacy WDC-type controller.

>
>
> 	Jonathan Kollasch

-- thorpej