Re: [PATCH RFC v2 12/29] PCI/MSI: Introduce pcim_enable_msi*()family helpers

From: Alexander Gordeev
Date: Fri Oct 25 2013 - 05:59:18 EST

On Fri, Oct 25, 2013 at 10:10:02AM +0100, David Laight wrote:
> What this doesn't resolve is a driver requesting a lot of interrupts
> early on and leaving none for later drivers.

If this problem really exists anywhere besides pSeries?

I can imagine x86 hitting lack of vectors in interrupt table when
number of CPUs exceeds hundreds, but do we have this problem now?

> Really the system needs to allocate the minimum number to all
> drivers before giving out any extra ones - I've NFI how this
> would be arranged!

Do not know. The pSeries quota approach seems more reasonable to me.

> David

Alexander Gordeev
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