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How to use _load_drivers_for_dpdk method in lisa

Best Python code snippet using lisa_python

dpdktestpmd.py

Source:dpdktestpmd.py

...460                f"Installed DPDK version {str(self._dpdk_version_info)} "461                "from package manager"462            )463            self.find_testpmd_binary()464            self._load_drivers_for_dpdk()465            return True466        # otherwise install from source tarball or git467        self.node.log.info(f"Installing dpdk from source: {self._dpdk_source}")468        self._dpdk_repo_path_name = "dpdk"469        self.dpdk_path = self.node.working_path.joinpath(self._dpdk_repo_path_name)470        if self.find_testpmd_binary(471            assert_on_fail=False, check_path="/usr/local/bin"472        ):  # tools are already installed473            return True474        git_tool = node.tools[Git]475        echo_tool = node.tools[Echo]476        if self._dpdk_source and self._dpdk_source.endswith(".tar.gz"):477            wget_tool = node.tools[Wget]478            tar_tool = node.tools[Tar]479            if self._dpdk_branch:480                node.log.warn(481                    (482                        "DPDK tarball source does not need dpdk_branch defined. "483                        "User-defined variable dpdk_branch will be ignored."484                    )485                )486            working_path = str(node.working_path)487            wget_tool.get(488                self._dpdk_source,489                working_path,490            )491            dpdk_filename = self._dpdk_source.split("/")[-1]492            # extract tar into dpdk/ folder and discard old root folder name493            tar_tool.extract(494                str(node.working_path.joinpath(dpdk_filename)),495                str(self.dpdk_path),496                strip_components=1,497            )498            self.set_version_info_from_source_install(499                self._dpdk_source, self._version_info_from_tarball_regex500            )501        else:502            git_tool.clone(503                self._dpdk_source,504                cwd=node.working_path,505                dir_name=self._dpdk_repo_path_name,506            )507            if not self._dpdk_branch:508                # dpdk stopped using a default branch509                # if a branch is not specified, get latest version tag.510                self._dpdk_branch = git_tool.get_tag(511                    self.dpdk_path, filter=r"^v.*"  # starts w 'v'512                )513            git_tool.checkout(self._dpdk_branch, cwd=self.dpdk_path)514            self.set_version_info_from_source_install(515                self._dpdk_branch, self._version_info_from_git_tag_regex516            )517        self._load_drivers_for_dpdk()518        # add sample apps to compilation if they are present519        if self._sample_apps_to_build:520            sample_apps = f"-Dexamples={','.join(self._sample_apps_to_build)}"521        else:522            sample_apps = ""523        node.execute(524            f"meson {sample_apps} build",525            shell=True,526            cwd=self.dpdk_path,527            expected_exit_code=0,528            expected_exit_code_failure_message=(529                "meson build for dpdk failed, check that"530                "dpdk build has not changed to eliminate the use of meson or "531                "meson version is compatible with this dpdk version and OS."532            ),533        )534        self.dpdk_build_path = self.dpdk_path.joinpath("build")535        node.execute(536            "ninja",537            cwd=self.dpdk_build_path,538            timeout=1800,539            expected_exit_code=0,540            expected_exit_code_failure_message=(541                "ninja build for dpdk failed. check build spew for missing headers "542                "or dependencies. Also check that this ninja version requirement "543                "has not changed for dpdk."544            ),545        )546        node.execute(547            "ninja install",548            cwd=self.dpdk_build_path,549            sudo=True,550            expected_exit_code=0,551            expected_exit_code_failure_message=(552                "ninja install failed for dpdk binaries."553            ),554        )555        node.execute(556            "ldconfig",557            cwd=self.dpdk_build_path,558            sudo=True,559            expected_exit_code=0,560            expected_exit_code_failure_message="ldconfig failed, check for error spew.",561        )562        library_bashrc_lines = [563            "export PKG_CONFIG_PATH=${PKG_CONFIG_PATH}:/usr/local/lib64/pkgconfig/",564            "export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib64/",565        ]566        echo_tool.write_to_file(567            ";".join(library_bashrc_lines),568            node.get_pure_path("~/.bashrc"),569            append=True,570        )571        self.find_testpmd_binary(check_path="/usr/local/bin")572        return True573    def _load_drivers_for_dpdk(self) -> None:574        self.node.log.info("Loading drivers for infiniband, rdma, and mellanox hw...")575        if self.is_connect_x3:576            mellanox_drivers = ["mlx4_core", "mlx4_ib"]577        else:578            mellanox_drivers = ["mlx5_core", "mlx5_ib"]579        modprobe = self.node.tools[Modprobe]580        if isinstance(self.node.os, Ubuntu):581            # Ubuntu shouldn't need any special casing, skip to loading rdma/ib582            pass583        elif isinstance(self.node.os, Debian):584            # NOTE: debian buster doesn't include rdma and ib drivers585            # on 5.4 specifically for linux-image-cloud:586            # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1012639587            # for backports on this release we should update the kernel to latest...

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