[PATCH] Add MSI support to puc(9)

[Ryan Stone]

On Thu, Feb 27, 2014 at 1:30 PM, John Baldwin <jhb at freebsd.org> wrote:
> I would suggest reworking this so that you try MSI for all PCI devices.
> I would do this by removing the 'sc_irid = 0' from puc_bfe_attach() so
> that it can be set by callers.  You could then add attach/detach routines in
> puc_pci.c that use pci_alloc_msi() and set sc_irid to 1 if MSI works.  The
> sc_irid value would also work as a flag for knowing if detach needs to call
> pci_release_msi() (or puc_pci_attach() handling failure in puc_bfe_attach())
> (though I wouldn't be opposed to keeping sc_msi as a separate flag).

Thanks for the review.  I have reworked the patch as requested.  The
new version can be found at the same path:
http://people.freebsd.org/~rstone/patches/puc_msi.diff