GS40G_PAGE_SELECT
e1000_write_phy_reg_mdic(hw, GS40G_PAGE_SELECT, 0xFC);
e1000_write_phy_reg_mdic(hw, GS40G_PAGE_SELECT, 0);
ret_val = e1000_write_phy_reg_mdic(hw, GS40G_PAGE_SELECT, page);
ret_val = e1000_write_phy_reg_mdic(hw, GS40G_PAGE_SELECT, page);