pci_if.h vs pcivar.h

["Chuck Tuffli" <ctuffli@xxxxxxxxx>]

I'm stumbling through adding a new PCI interface function and wanted
to find out the preferred way to do prototypes. Is there a preference
between (e.g.)

#include "pci_if.h"
. ..
PCI_ENABLE_BUSMASTER(...);

and

#include <bus/pci/pcivar.h>
. ..
pci_enable_busmaster(...);

i.e. should I also add an inline function in pcivar.h that wraps the
inline function from pci_if.h?

TIA.

---chuck