PCIE_LINK_SPEED_UNKNOWN
if (bus_p->bus_cur_speed != PCIE_LINK_SPEED_UNKNOWN) {
if (bus_p->bus_max_speed != PCIE_LINK_SPEED_UNKNOWN) {
if (bus_p->bus_target_speed != PCIE_LINK_SPEED_UNKNOWN) {
if (bus_p->bus_sup_speed != PCIE_LINK_SPEED_UNKNOWN) {
bus_p->bus_cur_speed = PCIE_LINK_SPEED_UNKNOWN;
bus_p->bus_cur_speed = PCIE_LINK_SPEED_UNKNOWN;
bus_p->bus_max_speed = PCIE_LINK_SPEED_UNKNOWN;
bus_p->bus_target_speed = PCIE_LINK_SPEED_UNKNOWN;