RE: Updated MSI Patches

From: Zwane Mwaikambo
Date: Tue Aug 12 2003 - 13:30:13 EST


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.

Zwane

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