RE: Updated MSI Patches

Nguyen, Tom L
2003-08-14T23:46:58Z

On Tue, 12 Aug 2003, Nguyen, Tom L wrote:
> > IMO Multiplexing would be preferred, we can't be allocating that many
> > vectors for one device/device driver
> All pre-assigned vectors to all enabled IOxAPIC(s) are reserved.
> Allocating additional vectors to MSI-X driver is determined based on the
> available vectors, which must be greater than the number of vectors requested
> by MSI-X driver.

>Hmm can you avoid grabbing all the free vectors? I think the irq
>controller subsystem should handle allocation of vectors. Letting MSI grab
>everything might leave us with problems later on.
Good point. Thanks! we are studying the policy, which ensures that no MSI-X
can grab everything from others. Will post this changes after done ...

Thanks,
Long