Re: Silicon Image 3112A SATA trouble

Jens Axboe
2003-11-30T17:12:02Z

On Sun, Nov 30 2003, Jeff Garzik wrote:
> Bartlomiej Zolnierkiewicz wrote:
> >On Sunday 30 of November 2003 17:51, Jens Axboe wrote:
> >>>Tangent: My non-pessimistic fix will involve submitting a single sector
> >>>DMA r/w taskfile manually, then proceeding with the remaining sectors in
> >>>another r/w taskfile. This doubles the interrupts on the affected
> >>>chipset/drive combos, but still allows large requests. I'm not terribly
> >>
> >>Or split the request 50/50.
> >
> >
> >We can't - hardware will lock up.
>
> Well, the constraint we must satisfy is
>
> sector_count % 15 != 1

(sector_count % 15 != 1) && (sector_count != 1)

to be more precise :)

--
Jens Axboe