How to use wait_for_sriov_enabled method in lisa

Best Python code snippet using lisa_python

dpdkutil.py

Source:dpdkutil.py

...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_netvsc...

nic.py

Source:nic.py

...231    def reload(self) -> None:232        self.nics.clear()233        self._initialize()234    @retry(tries=15, delay=3, backoff=1.15)235    def wait_for_sriov_enabled(self) -> None:236        lspci = self._node.tools[Lspci]237        # check for VFs on the guest238        vfs = lspci.get_devices_by_type(constants.DEVICE_TYPE_SRIOV, force_run=True)239        assert_that(len(vfs)).described_as(240            "Could not identify any SRIOV NICs on the test node."241        ).is_not_zero()242        # check if the NIC driver has finished setting up the243        # failsafe pair, reload if not244        if not self.get_lower_nics():245            self.reload()246        if not self.get_lower_nics():247            assert_that(self.get_lower_nics()).described_as(248                "Did not detect any upper/lower sriov paired nics!: "249                f"upper: {self.get_upper_nics()} "...

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