hvio_rp_mps
static uint64_t hvio_rp_mps(devhandle_t dev_hdl, pci_device_t bdf, int32_t *mps,
return (hvio_rp_mps(dev_hdl, bdf, mps_cap, MPS_GET));
return (hvio_rp_mps(dev_hdl, bdf, &mps, MPS_SET));