ifc_ierrors
data->ifi_ierrors = ifp->if_data_counters[ifc_ierrors];
data->ifi_ierrors += counters[ifc_ierrors];
counters_inc(ifp->if_counters, ifc_ierrors);
counters_inc(ifp->if_counters, ifc_ierrors);
counters_inc(ifp->if_counters, ifc_ierrors);
counters_inc(ifp->if_counters, ifc_ierrors);
#define if_ierrors if_data_counters[ifc_ierrors]
counters_inc(sc->sc_if.if_counters, ifc_ierrors);
counters_inc(sc->sc_if.if_counters, ifc_ierrors);
counters_inc(sc->sc_if.if_counters, ifc_ierrors);