ENETC_PTCCBSR0
return enetc_port_rd(hw, ENETC_PTCCBSR0(tc)) & ENETC_CBSE;
return enetc_port_rd(hw, ENETC_PTCCBSR0(tc)) & ENETC_CBS_BW_MASK;
enetc_port_wr(hw, ENETC_PTCCBSR0(tc), 0);
enetc_port_wr(hw, ENETC_PTCCBSR0(tc), bw | ENETC_CBSE);