Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use enable_uio_hv_generic_for_nic method in lisa

Best Python code snippet using lisa_python

dpdksuite.py

Source:dpdksuite.py

...557        modprobe = node.tools[Modprobe]558        nic = node.nics.get_nic_by_index()559        node.nics.get_nic_driver(nic.upper)560        if nic.bound_driver == "hv_netvsc":561            enable_uio_hv_generic_for_nic(node, nic)562        original_driver = nic.driver_sysfs_path563        node.nics.unbind(nic)564        node.nics.bind(nic, UIO_HV_GENERIC_SYSFS_PATH)565        node.execute(566            "test -e /dev/uio0",567            shell=True,568            expected_exit_code=0,569            expected_exit_code_failure_message=(570                "/dev/uio0 did not exist after driver bind"571            ),572        )573        assert_that(lsmod.module_exists("uio_hv_generic", force_run=True)).described_as(574            "uio_hv_generic was not found after bind"575        ).is_true()...

dpdkutil.py

Source:dpdkutil.py

...173    }174    return kit_cmd_pairs175UIO_HV_GENERIC_SYSFS_PATH = "/sys/bus/vmbus/drivers/uio_hv_generic"176HV_NETVSC_SYSFS_PATH = "/sys/bus/vmbus/drivers/hv_netvsc"177def enable_uio_hv_generic_for_nic(node: Node, nic: NicInfo) -> None:178    # hv_uio_generic driver uuid, a constant value used by vmbus.179    # https://doc.dpdk.org/guides/nics/netvsc.html#installation180    hv_uio_generic_uuid = "f8615163-df3e-46c5-913f-f2d2f965ed0e"181    # using netvsc pmd directly for dpdk on hv counterintuitively requires182    # you to enable to uio_hv_generic driver, steps are found:183    # https://doc.dpdk.org/guides/nics/netvsc.html#installation184    echo = node.tools[Echo]185    lsmod = node.tools[Lsmod]186    modprobe = node.tools[Modprobe]187    # enable if it is not already enabled188    if not lsmod.module_exists("uio_hv_generic", force_run=True):189        modprobe.load("uio_hv_generic")190        # vmbus magic to enable uio_hv_generic191        echo.write_to_file(192            hv_uio_generic_uuid,193            node.get_pure_path("/sys/bus/vmbus/drivers/uio_hv_generic/new_id"),194            sudo=True,195        )196def initialize_node_resources(197    node: Node,198    log: Logger,199    variables: Dict[str, Any],200    pmd: str,201    sample_apps: Union[List[str], None] = None,202) -> DpdkTestResources:203    _set_forced_source_by_distro(node, variables)204    dpdk_source = variables.get("dpdk_source", PACKAGE_MANAGER_SOURCE)205    dpdk_branch = variables.get("dpdk_branch", "")206    log.info(207        "Dpdk initialize_node_resources running"208        f"found dpdk_source '{dpdk_source}' and dpdk_branch '{dpdk_branch}'"209    )210    network_interface_feature = node.features[NetworkInterface]211    sriov_is_enabled = network_interface_feature.is_enabled_sriov()212    log.info(f"Node[{node.name}] Verify SRIOV is enabled: {sriov_is_enabled}")213    assert_that(sriov_is_enabled).described_as(214        f"SRIOV was not enabled for this test node ({node.name})"215    ).is_true()216    # dump some info about the pci devices before we start217    lspci = node.tools[Lspci]218    log.info(f"Node[{node.name}] LSPCI Info:\n{lspci.run().stdout}\n")219    # check compatibility first.220    try:221        check_dpdk_support(node)222    except UnsupportedDistroException as err:223        # forward message from distro exception224        raise SkippedException(err)225    # verify SRIOV is setup as-expected on the node after compat check226    node.nics.wait_for_sriov_enabled()227    # create tool, initialize testpmd tool (installs dpdk)228    testpmd: DpdkTestpmd = node.tools.get(229        DpdkTestpmd,230        dpdk_source=dpdk_source,231        dpdk_branch=dpdk_branch,232        sample_apps=sample_apps,233    )234    # init and enable hugepages (required by dpdk)235    init_hugepages(node)236    assert_that(len(node.nics)).described_as(237        "Test needs at least 1 NIC on the test node."238    ).is_greater_than_or_equal_to(1)239    test_nic = node.nics.get_nic_by_index()240    # check an assumption that our nics are bound to hv_netvsc241    # at test start.242    assert_that(test_nic.bound_driver).described_as(243        f"Error: Expected test nic {test_nic.upper} to be "244        f"bound to hv_netvsc. Found {test_nic.bound_driver}."245    ).is_equal_to("hv_netvsc")246    # netvsc pmd requires uio_hv_generic to be loaded before use247    if pmd == "netvsc":248        # this code makes changes to interfaces that will cause later tests to fail.249        # Therefore we mark the node dirty to prevent future testing on this environment250        node.mark_dirty()251        enable_uio_hv_generic_for_nic(node, test_nic)252        # if this device is paired, set the upper device 'down'253        if test_nic.lower:254            node.nics.unbind(test_nic)255            node.nics.bind(test_nic, UIO_HV_GENERIC_SYSFS_PATH)256    return DpdkTestResources(node, testpmd)257def check_send_receive_compatibility(test_kits: List[DpdkTestResources]) -> None:258    for kit in test_kits:259        if not kit.testpmd.has_tx_ip_flag():260            raise UnsupportedPackageVersionException(261                kit.node.os,262                "dpdk",263                kit.testpmd.get_dpdk_version(),264                "-tx-ip flag for ip forwarding",265            )...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.