Enabling MSI-X on -CURRENT for New Network Driver

[Bruce Evans]

On Wed, 16 Jul 2008, David Christensen wrote:

> I'm working on adding MSI-X support for a new network driver
> and having some difficulty in actually getting an interrupt.
> Does this look right?

I don't know, but on FreeBSD cluster machines running RELENG_8 bce
generates too many interrupts -- approx. 46000/second to deliver
approx. 2 packets/second.  bce works normally on FreeBSD cluster
machines running RELENG_7 and earlier (2 interrupts/second to deliver
systat -v output).

Bruce