misc questions about the device&driver arch

[Scott Long]

william wallace wrote:

[...]

> MSI:
> I've bantered around different suggestions for an API that will support
> this.  The basic thing that a driver needs from this is to know
> exactly how many message interrupt vectors are available to it.  It
> can't just register vectors and handlers blindly since the purpose of
> MSI is to assign special meanings to each vector and allow the driver to
> handle each one in specifically.

[...]

I just wanted to briefly say that an MSI implementation has been done
recently, and that it should start getting wider circulation and review
soon.  That's not to say that more work and design can't be done in this
area, but we should probably wait a bit and see what has been done
already.

Scott