nm_intr
na_arg.nm_intr = ptnet_nm_intr;
na.nm_intr = vtnet_netmap_intr;
if (!na->nm_intr) {
na->nm_intr(na, onoff);
void (*nm_intr)(struct netmap_adapter *, int onoff);
if (!sc->irq || snd_setup_intr(dev, sc->irq, 0, nm_intr, sc, &sc->ih)) {
static void nm_intr(void *);
na.nm_intr = iflib_netmap_intr;