Re: [PATCH] aic94xx: fix SMP request DMA direction

Muli Ben-Yehuda
2007-09-29T06:22:18Z

On Fri, Sep 28, 2007 at 04:55:34PM -0700, Darrick J. Wong wrote:
> On Thu, Sep 27, 2007 at 10:33:41PM -0400, Jeff Garzik wrote:
> >
> > Unless I'm missing something, the SMP request goes /to/ the PCI device :)
> >
> > Signed-off-by: Jeff Garzik <jeff@garzik.org>
>
> ACK; builds ok and SMP commands seem to work ok (not that they
> didn't before).

Could this explain some weirdness we were seeing with aic94xx and
Calgary/CalIOC2 enabled, or are SMP commands not likely to be used in
normal operation? We map the IOMMU entries differently for FROMDEVICE
(RW) and TODEVICE(RO).

Cheers,
Muli
--
SYSTOR 2007 --- 1st Annual Haifa Systems and Storage Conference 2007
http://www.haifa.il.ibm.com/Workshops/systor2007/

Oct 29, 2007: virtualization workshop | Oct 30, 2007: storage workshop