RE: Updated MSI Patches

[Nguyen, Tom L]

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


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