RGEPHY_SR
reg = PHY_READ(sc, RGEPHY_SR);
bmsr = PHY_READ(sc, RGEPHY_SR);
bmsr = PHY_READ(sc, RGEPHY_SR);
ret_val = em_read_phy_reg_ex(hw, RGEPHY_SR, &phy_data);
ret_val = em_write_phy_reg_ex(hw, RGEPHY_SR, phy_data);
ret_val = em_read_phy_reg_ex(hw, RGEPHY_SR, &phy_data);