ETHTOOL_MSG_CABLE_TEST_NTF
ret = ethnl_cable_test_alloc(phydev, ETHTOOL_MSG_CABLE_TEST_NTF);
err = ethnl_cable_test_alloc(phydev, ETHTOOL_MSG_CABLE_TEST_NTF);
ethnl_cable_test_started(phydev, ETHTOOL_MSG_CABLE_TEST_NTF);