rocker_read64
test_reg = rocker_read64(rocker, TEST_REG64);
u64 link_status = rocker_read64(rocker, PORT_PHYS_LINK_STATUS);
rocker->hw.id = rocker_read64(rocker, SWITCH_ID);
u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE);