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How to use get_device_channels_info method in lisa

Best Python code snippet using lisa_python

ethtool.py

Source:ethtool.py

...454                self._device_set.add(cmd_result.stdout)455        if not self._device_set:456            raise LisaException("Did not find any synthetic network interface.")457        return self._device_set458    def get_device_channels_info(459        self, interface: str, force_run: bool = False460    ) -> DeviceChannel:461        device = self._get_or_create_device_setting(interface)462        if not force_run and device.device_channel:463            return device.device_channel464        result = self.run(f"-l {interface}", force_run=force_run)465        if (result.exit_code != 0) and ("Operation not supported" in result.stdout):466            raise UnsupportedOperationException(467                "ethtool -l {interface} operation not supported."468            )469        result.assert_exit_code(470            message=f"Couldn't get device {interface} channels info."471        )472        device_channel_info = DeviceChannel(interface, result.stdout)473        # Find the vCPU count to accurately get max channels for the device.474        lscpu = self.node.tools[Lscpu]475        vcpu_count = lscpu.get_core_count(force_run=True)476        if vcpu_count < device_channel_info.max_channels:477            device_channel_info.max_channels = vcpu_count478        device.device_channel = device_channel_info479        return device_channel_info480    def change_device_channels_info(481        self,482        interface: str,483        channel_count: int,484    ) -> DeviceChannel:485        change_result = self.run(486            f"-L {interface} combined {channel_count}", sudo=True, force_run=True487        )488        change_result.assert_exit_code(489            message=f" Couldn't change device {interface} channels count."490        )491        return self.get_device_channels_info(interface, force_run=True)492    def get_device_enabled_features(493        self, interface: str, force_run: bool = False494    ) -> DeviceFeatures:495        device = self._get_or_create_device_setting(interface)496        if not force_run and device.device_features:497            return device.device_features498        result = self.run(f"-k {interface}", force_run=force_run)499        result.assert_exit_code()500        device.device_features = DeviceFeatures(interface, result.stdout)501        return device.device_features502    def get_device_gro_lro_settings(503        self, interface: str, force_run: bool = False504    ) -> DeviceGroLroSettings:505        device = self._get_or_create_device_setting(interface)506        if not force_run and device.device_gro_lro_settings:507            return device.device_gro_lro_settings508        result = self.run(f"-k {interface}", force_run=force_run)509        result.assert_exit_code()510        device.device_gro_lro_settings = DeviceGroLroSettings(interface, result.stdout)511        return device.device_gro_lro_settings512    def change_device_gro_lro_settings(513        self, interface: str, gro_setting: bool, lro_setting: bool514    ) -> DeviceGroLroSettings:515        gro = "on" if gro_setting else "off"516        lro = "on" if lro_setting else "off"517        change_result = self.run(518            f"-K {interface} gro {gro} lro {lro}",519            sudo=True,520            force_run=True,521        )522        change_result.assert_exit_code(523            message=f" Couldn't change device {interface} GRO LRO settings."524        )525        return self.get_device_gro_lro_settings(interface, force_run=True)526    def get_device_link_settings(self, interface: str) -> DeviceLinkSettings:527        device = self._get_or_create_device_setting(interface)528        if device.device_link_settings:529            return device.device_link_settings530        result = self.run(interface)531        result.assert_exit_code()532        link_settings = DeviceLinkSettings(interface, result.stdout)533        device.device_link_settings = link_settings534        # Caching the message level settings if captured in DeviceLinkSettings.535        # Not returning this info from this method. Only caching.536        if link_settings.msg_level_number and link_settings.msg_level_name:537            msg_level_settings = DeviceMessageLevel(538                interface,539                msg_level_number=link_settings.msg_level_number,540                msg_level_name=link_settings.msg_level_name,541            )542            device.device_msg_level = msg_level_settings543        return link_settings544    def get_device_msg_level(545        self, interface: str, force_run: bool = False546    ) -> DeviceMessageLevel:547        device = self._get_or_create_device_setting(interface)548        if not force_run and device.device_msg_level:549            return device.device_msg_level550        result = self.run(interface, force_run=force_run)551        if (result.exit_code != 0) and ("Operation not supported" in result.stdout):552            raise UnsupportedOperationException(553                f"ethtool {interface} operation not supported."554            )555        result.assert_exit_code(556            message=f"Couldn't get device {interface} message level information"557        )558        msg_level_settings = DeviceMessageLevel(interface, result.stdout)559        device.device_msg_level = msg_level_settings560        # caching the link settings if captured in DeviceMessageLevel.561        # will not this info from this method. Only caching.562        if msg_level_settings.link_settings:563            link_settings = DeviceLinkSettings(564                interface, link_settings=msg_level_settings.link_settings565            )566            device.device_link_settings = link_settings567        return msg_level_settings568    def set_unset_device_message_flag_by_name(569        self, interface: str, msg_flag: List[str], set: bool570    ) -> DeviceMessageLevel:571        if set:572            result = self.run(573                f"-s {interface} msglvl {' on '.join(flag for flag in msg_flag)} on",574                sudo=True,575                force_run=True,576            )577            result.assert_exit_code(578                message=f" Couldn't set device {interface} message flag/s {msg_flag}."579            )580        else:581            result = self.run(582                f"-s {interface} msglvl {' off '.join(flag for flag in msg_flag)} off",583                sudo=True,584                force_run=True,585            )586            result.assert_exit_code(587                message=f" Couldn't unset device {interface} message flag/s {msg_flag}."588            )589        return self.get_device_msg_level(interface, force_run=True)590    def set_device_message_flag_by_num(591        self, interface: str, msg_flag: str592    ) -> DeviceMessageLevel:593        result = self.run(594            f"-s {interface} msglvl {msg_flag}",595            sudo=True,596            force_run=True,597        )598        result.assert_exit_code(599            message=f" Couldn't set device {interface} message flag {msg_flag}."600        )601        return self.get_device_msg_level(interface, force_run=True)602    def get_device_ring_buffer_settings(603        self, interface: str, force_run: bool = False604    ) -> DeviceRingBufferSettings:605        device = self._get_or_create_device_setting(interface)606        if not force_run and device.device_ringbuffer_settings:607            return device.device_ringbuffer_settings608        result = self.run(f"-g {interface}", force_run=force_run)609        if (result.exit_code != 0) and ("Operation not supported" in result.stdout):610            raise UnsupportedOperationException(611                f"ethtool -g {interface} operation not supported."612            )613        result.assert_exit_code(614            message=f"Couldn't get device {interface} ring buffer settings."615        )616        device.device_ringbuffer_settings = DeviceRingBufferSettings(617            interface, result.stdout618        )619        return device.device_ringbuffer_settings620    def change_device_ring_buffer_settings(621        self, interface: str, rx: int, tx: int622    ) -> DeviceRingBufferSettings:623        change_result = self.run(624            f"-G {interface} rx {rx} tx {tx}", sudo=True, force_run=True625        )626        change_result.assert_exit_code(627            message=f" Couldn't change device {interface} ring buffer settings."628        )629        return self.get_device_ring_buffer_settings(interface, force_run=True)630    def get_device_rss_hash_key(631        self, interface: str, force_run: bool = False632    ) -> DeviceRssHashKey:633        device = self._get_or_create_device_setting(interface)634        if not force_run and device.device_rss_hash_key:635            return device.device_rss_hash_key636        result = self.run(f"-x {interface}", force_run=force_run)637        if (result.exit_code != 0) and ("Operation not supported" in result.stdout):638            raise UnsupportedOperationException(639                f"ethtool -x {interface} operation not supported."640            )641        result.assert_exit_code(642            message=f"Couldn't get device {interface} ring buffer settings."643        )644        device.device_rss_hash_key = DeviceRssHashKey(interface, result.stdout)645        return device.device_rss_hash_key646    def change_device_rss_hash_key(647        self, interface: str, hash_key: str648    ) -> DeviceRssHashKey:649        result = self.run(f"-X {interface} hkey {hash_key}", sudo=True, force_run=True)650        if (result.exit_code != 0) and ("Operation not supported" in result.stdout):651            raise UnsupportedOperationException(652                f"Changing RSS hash key with 'ethtool -X {interface}' not supported."653            )654        result.assert_exit_code(655            message=f" Couldn't change device {interface} hash key."656        )657        return self.get_device_rss_hash_key(interface, force_run=True)658    def get_device_rx_hash_level(659        self, interface: str, protocol: str, force_run: bool = False660    ) -> DeviceRxHashLevel:661        device = self._get_or_create_device_setting(interface)662        if (663            not force_run664            and device.device_rx_hash_level665            and (protocol in device.device_rx_hash_level.protocol_hash_map.keys())666        ):667            return device.device_rx_hash_level668        result = self.run(669            f"-n {interface} rx-flow-hash {protocol}", force_run=force_run670        )671        if "Operation not supported" in result.stdout:672            raise UnsupportedOperationException(673                f"ethtool -n {interface} operation not supported."674            )675        result.assert_exit_code(676            message=f"Couldn't get device {interface} RX flow hash level for"677            f" protocol {protocol}."678        )679        if device.device_rx_hash_level:680            device.device_rx_hash_level._parse_rx_hash_level(681                interface, protocol, result.stdout682            )683            device_rx_hash_level = device.device_rx_hash_level684        else:685            device_rx_hash_level = DeviceRxHashLevel(interface, protocol, result.stdout)686        device.device_rx_hash_level = device_rx_hash_level687        return device_rx_hash_level688    def change_device_rx_hash_level(689        self, interface: str, protocol: str, enable: bool690    ) -> DeviceRxHashLevel:691        param = "sd"692        if enable:693            param = "sdfn"694        result = self.run(695            f"-N {interface} rx-flow-hash {protocol} {param}",696            sudo=True,697            force_run=True,698        )699        if "Operation not supported" in result.stdout:700            raise UnsupportedOperationException(701                f"ethtool -N {interface} rx-flow-hash {protocol} {param}"702                " operation not supported."703            )704        result.assert_exit_code(705            message=f" Couldn't change device {interface} hash level for {protocol}."706        )707        return self.get_device_rx_hash_level(interface, protocol, force_run=True)708    def get_device_sg_settings(709        self, interface: str, force_run: bool = False710    ) -> DeviceSgSettings:711        device = self._get_or_create_device_setting(interface)712        if not force_run and device.device_sg_settings:713            return device.device_sg_settings714        result = self.run(f"-k {interface}", force_run=force_run)715        result.assert_exit_code()716        device.device_sg_settings = DeviceSgSettings(interface, result.stdout)717        return device.device_sg_settings718    def change_device_sg_settings(719        self, interface: str, sg_setting: bool720    ) -> DeviceSgSettings:721        sg = "on" if sg_setting else "off"722        change_result = self.run(723            f"-K {interface} sg {sg}",724            sudo=True,725            force_run=True,726        )727        change_result.assert_exit_code(728            message=f" Couldn't change device {interface} scatter-gather settings."729        )730        return self.get_device_sg_settings(interface, force_run=True)731    def get_device_statistics(732        self, interface: str, force_run: bool = False733    ) -> DeviceStatistics:734        device = self._get_or_create_device_setting(interface)735        if not force_run and device.device_statistics:736            return device.device_statistics737        result = self.run(f"-S {interface}", force_run=True)738        if (result.exit_code != 0) and (739            "Operation not supported" in result.stdout740            or "no stats available" in result.stdout741        ):742            raise UnsupportedOperationException(743                f"ethtool -S {interface} operation not supported."744            )745        result.assert_exit_code(message=f"Couldn't get device {interface} statistics.")746        device.device_statistics = DeviceStatistics(interface, result.stdout)747        return device.device_statistics748    def get_device_statistics_delta(749        self, interface: str, previous_statistics: Dict[str, int]750    ) -> Dict[str, int]:751        """752        use this method to get the delta of an operation.753        """754        new_statistics = self.get_device_statistics(755            interface=interface, force_run=True756        ).counters757        for key, value in previous_statistics.items():758            new_statistics[key] = new_statistics.get(key, 0) - value759        self._log.debug(f"none-zero delta statistics on {interface}:")760        self._log.debug(761            {key: value for key, value in new_statistics.items() if value != 0}762        )763        return new_statistics764    def get_device_firmware_version(765        self, interface: str, force_run: bool = False766    ) -> str:767        device = self._get_or_create_device_setting(interface)768        if not force_run and device.device_firmware_version:769            return device.device_firmware_version770        result = self.run(f"-i {interface}", force_run=force_run)771        if (result.exit_code != 0) and ("Operation not supported" in result.stdout):772            raise UnsupportedOperationException(773                f"ethtool -i {interface} operation not supported."774            )775        result.assert_exit_code(776            message=f"Couldn't get device {interface} firmware version info."777        )778        firmware_version_pattern = self._firmware_version_pattern.search(result.stdout)779        if not firmware_version_pattern:780            raise LisaException(781                f"Cannot get {interface} device firmware version information"782            )783        firmware_version = firmware_version_pattern.group("value")784        device.device_firmware_version = firmware_version785        return firmware_version786    def get_all_device_channels_info(self) -> List[DeviceChannel]:787        devices_channel_list = []788        devices = self.get_device_list()789        for device in devices:790            devices_channel_list.append(self.get_device_channels_info(device))791        return devices_channel_list792    def get_all_device_enabled_features(793        self, force_run: bool = False794    ) -> List[DeviceFeatures]:795        devices_features_list = []796        devices = self.get_device_list(force_run)797        for device in devices:798            devices_features_list.append(799                self.get_device_enabled_features(device, force_run)800            )801        return devices_features_list802    def get_all_device_gro_lro_settings(self) -> List[DeviceGroLroSettings]:803        devices_gro_lro_settings = []804        devices = self.get_device_list()...

cpusuite.py

Source:cpusuite.py

...172        idle_cpus = get_idle_cpus(node)173        log.debug(f"idle cpus: {idle_cpus}")174        # save origin current channel175        origin_device_channel = (176            node.tools[Ethtool].get_device_channels_info("eth0", True)177        ).current_channels178        # set channel count into 1 to get idle cpus179        if len(idle_cpus) == 0:180            node.tools[Ethtool].change_device_channels_info("eth0", 1)181            idle_cpus = get_idle_cpus(node)182            log.debug(f"idle cpus: {idle_cpus}")183        if len(idle_cpus) == 0:184            raise SkippedException(185                "all of the cpu are associated vmbus channels, "186                "no idle cpu can be used to test hotplug."187            )188        # set idle cpu state offline and change channels189        # current max channel will be cpu_count - len(idle_cpus)190        # check channels of synthetic network adapter align with current setting channel191        try:192            # take idle cpu to offline193            set_cpu_state_serial(log, node, idle_cpus, CPUState.OFFLINE)194            # get vmbus channels of synthetic network adapter. the synthetic network195            # drivers have class id "f8615163-df3e-46c5-913f-f2d2f965ed0e"196            node.tools[Lsvmbus].get_device_channels(force_run=True)197            cpu_count = node.tools[Lscpu].get_core_count()198            # current max channel count need minus count of idle cpus199            max_channel_count = cpu_count - len(idle_cpus)200            # change current channel201            first_channel_count = random.randint(1, min(max_channel_count, 64))202            node.tools[Ethtool].change_device_channels_info("eth0", first_channel_count)203            # verify that the added channels do not handle interrupts on offline cpu204            lsvmbus_channels = node.tools[Lsvmbus].get_device_channels(force_run=True)205            for channel in lsvmbus_channels:206                # verify synthetic network adapter channels align with expected value207                if channel.class_id == "f8615163-df3e-46c5-913f-f2d2f965ed0e":208                    log.debug(f"Network synthetic channel: {channel}")209                    assert_that(channel.channel_vp_map).is_length(first_channel_count)210                # verify that devices do not handle interrupts on offline cpu211                for channel_vp in channel.channel_vp_map:212                    assert_that(channel_vp.target_cpu).is_not_in(idle_cpus)213            # reset idle cpu to online214            set_cpu_state_serial(log, node, idle_cpus, CPUState.ONLINE)215            # reset max and current channel count into original ones216            # by reloading hv_netvsc driver217            node.tools[Modprobe].reload(["hv_netvsc"])218            # change the combined channels count after all cpus online219            second_channel_count = random.randint(1, min(cpu_count, 64))220            while True:221                if first_channel_count != second_channel_count:222                    break223                second_channel_count = random.randint(1, min(cpu_count, 64))224            node.tools[Ethtool].change_device_channels_info(225                "eth0", second_channel_count226            )227            # verify that the network adapter channels count changed228            # into new channel count229            lsvmbus_channels = node.tools[Lsvmbus].get_device_channels(force_run=True)230            for channel in lsvmbus_channels:231                # verify that channels were added to synthetic network adapter232                if channel.class_id == "f8615163-df3e-46c5-913f-f2d2f965ed0e":233                    log.debug(f"Network synthetic channel: {channel}")234                    assert_that(channel.channel_vp_map).is_length(second_channel_count)235        finally:236            # reset idle cpu to online237            set_cpu_state_serial(log, node, idle_cpus, CPUState.ONLINE)238            # restore channel count into origin value239            current_device_channel = (240                node.tools[Ethtool].get_device_channels_info("eth0", True)241            ).current_channels242            if current_device_channel != origin_device_channel:243                node.tools[Ethtool].change_device_channels_info(244                    "eth0", origin_device_channel245                )246            # when kernel doesn't support set vmbus channels target cpu feature, the247            # dict which stores original status is empty, nothing need to be restored....

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