ENETC_BDR
tx_ring->tpir = hw->reg + ENETC_BDR(TX, idx, ENETC_TBPIR);
tx_ring->tcir = hw->reg + ENETC_BDR(TX, idx, ENETC_TBCIR);
rx_ring->rcir = hw->reg + ENETC_BDR(RX, idx, ENETC_RBCIR);
v->tbier_base = hw->reg + ENETC_BDR(TX, 0, ENETC_TBIER);
v->rbier = hw->reg + ENETC_BDR(RX, i, ENETC_RBIER);
v->ricr1 = hw->reg + ENETC_BDR(RX, i, ENETC_RBICR1);
addr = ENETC_BDR(TX, i, enetc_txbdr_regs[j]);
addr = ENETC_BDR(RX, i, enetc_rxbdr_regs[j]);
enetc_rd(hw, ENETC_BDR(t, n, off))
enetc_wr(hw, ENETC_BDR(t, n, off), val)