E1000_FCRTH_RTH 4029 drivers/net/ethernet/intel/e1000e/netdev.c fc->high_water = hwm & E1000_FCRTH_RTH; /* 8-byte granularity */ E1000_FCRTH_RTH 4060 drivers/net/ethernet/intel/e1000e/netdev.c fc->high_water = ((pba << 10) * 9 / 10) & E1000_FCRTH_RTH;