DATA_EFFICIENCY_8b_10b_FEC_EFFICIENCY_x100
total_data_bw_efficiency_x10000 *= DATA_EFFICIENCY_8b_10b_FEC_EFFICIENCY_x100;
dc_fixpt_from_fraction(100, DATA_EFFICIENCY_8b_10b_FEC_EFFICIENCY_x100));
total_data_bw_efficiency_x10000 *= DATA_EFFICIENCY_8b_10b_FEC_EFFICIENCY_x100;