Attempt msi interrupt mapping, with fall back to old-style mapping. Works on my non-msi capable ahci and several msi capable setups. Dark suspicions that some will NOT work so put it in to smoke any such systems into the open.
Attempt msi interrupt mapping, with fall back to old-style mapping. Works
on my non-msi capable ahci and several msi capable setups. Dark
suspicions that some will NOT work so put it in to smoke any such
systems into the open.

ok deraadt@ mk@ kettenis@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars