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How to use _reload_hv_netvsc method in lisa

Best Python code snippet using lisa_python

modprobe.py

Source:modprobe.py

...11    def _initialize(self, *args: Any, **kwargs: Any) -> None:12        self._command = "modprobe"13    # hv_netvsc needs a special case, since reloading it has the potential14    # to leave the node without a network connection if things go wrong.15    def _reload_hv_netvsc(self) -> None:16        # These commands must be sent together, bundle them up as one line17        self.node.execute(18            "modprobe -r hv_netvsc; modprobe hv_netvsc; "19            "ip link set eth0 down; ip link set eth0 up;"20            "dhclient -r eth0; dhclient eth0",21            sudo=True,22            shell=True,23        )24    def is_module_loaded(25        self,26        mod_name: str,27        force_run: bool = False,28        no_info_log: bool = True,29        no_error_log: bool = True,30    ) -> bool:31        result = self.run(32            f"-nv {mod_name}",33            sudo=True,34            force_run=force_run,35            no_info_log=no_info_log,36            no_error_log=no_error_log,37        )38        # Example possible outputs39        # 1) insmod /lib/modules/.../floppy.ko.xz40        #    Exists but is not loaded - return False41        # 2) FATAL: Module floppy not found.42        #    Module does not exist, therefore is not loaded - return False43        # 3) (no output)44        #    Module is loaded - return True45        could_be_loaded = result.stdout and "insmod" in result.stdout46        does_not_exist = (result.stderr and "not found" in result.stderr) or (47            result.stdout and "not found" in result.stdout48        )49        return not (could_be_loaded or does_not_exist)50    def remove(self, mod_names: List[str], ignore_error: bool = False) -> None:51        for mod_name in mod_names:52            if ignore_error:53                # rmmod support the module file, so use it here.54                self.node.execute(f"rmmod {mod_name}", sudo=True)55            else:56                if self.is_module_loaded(mod_name, force_run=True):57                    self.run(58                        f"-r {mod_name}",59                        force_run=True,60                        sudo=True,61                        expected_exit_code=0,62                        expected_exit_code_failure_message="Fail to remove module "63                        f"{mod_name}",64                    )65    def load(66        self,67        modules: Union[str, List[str]],68        dry_run: bool = False,69    ) -> bool:70        if isinstance(modules, list):71            modules_str = "-a " + " ".join(modules)72        else:73            modules_str = modules74        command = f"{modules_str}"75        if dry_run:76            command = f"--dry-run {command}"77        result = self.run(78            command,79            force_run=True,80            sudo=True,81        )82        if dry_run:83            return result.exit_code == 084        result.assert_exit_code(85            expected_exit_code=0,86            message=f"Fail to load module[s]: {modules_str}.",87            include_output=True,88        )89        return True90    def module_exists(self, modules: Union[str, List[str]]) -> bool:91        return self.load(modules, dry_run=True)92    def reload(93        self,94        mod_names: List[str],95    ) -> None:96        for mod_name in mod_names:97            if self.is_module_loaded(mod_name, force_run=True):98                # hv_netvsc reload requires resetting the network interface99                if mod_name == "hv_netvsc":100                    # handle special case101                    self._reload_hv_netvsc()102                else:103                    # execute the command for regular non-network modules104                    self.node.execute(105                        f"modprobe -r {mod_name}; modprobe {mod_name};",106                        sudo=True,107                        shell=True,108                    )109    def load_by_file(self, file_name: str) -> None:110        # the insmod support to load from file.111        self.node.execute(112            f"insmod {file_name}",113            sudo=True,114            expected_exit_code=0,115            expected_exit_code_failure_message=f"failed to load module {file_name}",...

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