On Fri, Nov 19, 2010 at 04:12:43AM -0500, Gerd Hoffmann wrote:
> >>> +static void ahci_check_irq(AHCIState *s)
> >>
> >> MSI support would be nice to have.
> >
> > Alrighty, I added MSI support. But I only have a single vector in use
> > atm as nvec> 0 doesn't get written to the PCI config space so the code
> > trips on that later on.
>
> For multiple vectors MSI-X is the best choice as it fixes a few design
> issues MSI has when it comes to multiple vectors. I think linux never
> ever uses MSI with multiple vectors anyway.
Linux doesn't even support MSI with multiple vectors today.
Joerg
--
AMD Operating System Research Center
Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach
General Managers: Alberto Bozzo, Andrew Bowd
Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632
