diff options
| -rw-r--r-- | resources/libraries/python/CpuUtils.py | 12 | ||||
| -rw-r--r-- | resources/libraries/python/TRexConfigGenerator.py | 287 | ||||
| -rw-r--r-- | resources/libraries/python/TrafficGenerator.py | 124 |
3 files changed, 312 insertions, 111 deletions
diff --git a/resources/libraries/python/CpuUtils.py b/resources/libraries/python/CpuUtils.py index 5805ba7787..1e306f025e 100644 --- a/resources/libraries/python/CpuUtils.py +++ b/resources/libraries/python/CpuUtils.py @@ -1,4 +1,4 @@ -# Copyright (c) 2021 Cisco and/or its affiliates. +# Copyright (c) 2023 Cisco and/or its affiliates. # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at: @@ -388,25 +388,23 @@ class CpuUtils: @staticmethod def get_affinity_trex( - node, if1_pci, if2_pci, tg_mtc=1, tg_dtc=1, tg_ltc=1): + node, if_key, tg_mtc=1, tg_dtc=1, tg_ltc=1): """Get affinity for T-Rex. Result will be used to pin T-Rex threads. :param node: TG node. - :param if1_pci: TG first interface. - :param if2_pci: TG second interface. + :param if_key: TG first interface. :param tg_mtc: TG main thread count. :param tg_dtc: TG dataplane thread count. :param tg_ltc: TG latency thread count. :type node: dict - :type if1_pci: str - :type if2_pci: str + :type if_key: str :type tg_mtc: int :type tg_dtc: int :type tg_ltc: int :returns: List of CPUs allocated to T-Rex including numa node. :rtype: int, int, int, list """ - interface_list = [if1_pci, if2_pci] + interface_list = [if_key] cpu_node = Topology.get_interfaces_numa_node(node, *interface_list) master_thread_id = CpuUtils.cpu_slice_of_list_per_node( diff --git a/resources/libraries/python/TRexConfigGenerator.py b/resources/libraries/python/TRexConfigGenerator.py new file mode 100644 index 0000000000..2015b09ad2 --- /dev/null +++ b/resources/libraries/python/TRexConfigGenerator.py @@ -0,0 +1,287 @@ +# Copyright (c) 2023 Cisco and/or its affiliates. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""TRex Configuration File Generator library.""" + +import re +import yaml + +from resources.libraries.python.Constants import Constants +from resources.libraries.python.CpuUtils import CpuUtils +from resources.libraries.python.ssh import exec_cmd_no_error +from resources.libraries.python.topology import NodeType, NodeSubTypeTG +from resources.libraries.python.topology import Topology + + +__all__ = ["TrexConfigGenerator", "TrexInitConfig"] + +def pci_dev_check(pci_dev): + """Check if provided PCI address is in correct format. + + :param pci_dev: PCI address (expected format: xxxx:xx:xx.x). + :type pci_dev: str + :returns: True if PCI address is in correct format. + :rtype: bool + :raises ValueError: If PCI address is in incorrect format. + """ + pattern = re.compile( + r"^[0-9A-Fa-f]{4}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}\.[0-9A-Fa-f]$" + ) + if not re.match(pattern, pci_dev): + raise ValueError( + f"PCI address {pci_dev} is not in valid format xxxx:xx:xx.x" + ) + return True + + +class TrexConfigGenerator: + """TRex Startup Configuration File Generator.""" + + def __init__(self): + """Initialize library. + """ + self._node = "" + self._node_key = "" + self._node_config = dict() + self._node_serialized_config = "" + self._startup_configuration_path = "/etc/trex_cfg.yaml" + + def set_node(self, node, node_key=None): + """Set topology node. + + :param node: Node to store configuration on. + :param node_key: Topology node key. + :type node: dict + :type node_key: str + :raises RuntimeError: If Node type is not TG and subtype is not TREX. + """ + if node.get("type") is None: + msg = "Node type is not defined!" + elif node["type"] != NodeType.TG: + msg = f"Node type is {node['type']!r}, not a TG!" + elif node.get("subtype") is None: + msg = "TG subtype is not defined" + elif node["subtype"] != NodeSubTypeTG.TREX: + msg = f"TG subtype {node['subtype']!r} is not supported" + else: + self._node = node + self._node_key = node_key + return + raise RuntimeError(msg) + + def get_serialized_config(self): + """Get serialized startup configuration in YAML format. + + :returns: Startup configuration in YAML format. + :rtype: str + """ + self.serialize_config(self._node_config) + return self._node_serialized_config + + def serialize_config(self, obj): + """Serialize the startup configuration in YAML format. + + :param obj: Python Object to print. + :type obj: Obj + """ + self._node_serialized_config = yaml.dump([obj], default_style=None) + + def add_config_item(self, config, value, path): + """Add startup configuration item. + + :param config: Startup configuration of node. + :param value: Value to insert. + :param path: Path where to insert item. + :type config: dict + :type value: str + :type path: list + """ + if len(path) == 1: + config[path[0]] = value + return + if path[0] not in config: + config[path[0]] = dict() + elif isinstance(config[path[0]], str): + config[path[0]] = dict() if config[path[0]] == "" \ + else {config[path[0]]: ""} + self.add_config_item(config[path[0]], value, path[1:]) + + def add_version(self, value=2): + """Add config file version. + + :param value: Version of configuration file. + :type value: int + """ + path = ["version"] + self.add_config_item(self._node_config, value, path) + + def add_c(self, value): + """Add core count. + + :param value: Core count. + :type value: int + """ + path = ["c"] + self.add_config_item(self._node_config, value, path) + + def add_limit_memory(self, value): + """Add memory limit. + + :param value: Memory limit. + :type value: str + """ + path = ["limit_memory"] + self.add_config_item(self._node_config, value, path) + + def add_interfaces(self, devices): + """Add PCI device configuration. + + :param devices: PCI device(s) (format xxxx:xx:xx.x). + :type devices: list(str) + """ + for device in devices: + pci_dev_check(device) + + path = ["interfaces"] + self.add_config_item(self._node_config, devices, path) + + def add_rx_desc(self, value): + """Add RX descriptors. + + :param value: RX descriptors count. + :type value: int + """ + path = ["rx_desc"] + self.add_config_item(self._node_config, value, path) + + def add_tx_desc(self, value): + """Add TX descriptors. + + :param value: TX descriptors count. + :type value: int + """ + path = ["tx_desc"] + self.add_config_item(self._node_config, value, path) + + def add_port_info(self, value): + """Add port information configuration. + + :param value: Port information configuration. + :type value: list(dict) + """ + path = ["port_info"] + self.add_config_item(self._node_config, value, path) + + def add_platform_master_thread_id(self, value): + """Add platform master thread ID. + + :param value: Master thread ID. + :type value: int + """ + path = ["platform", "master_thread_id"] + self.add_config_item(self._node_config, value, path) + + def add_platform_latency_thread_id(self, value): + """Add platform latency thread ID. + + :param value: Latency thread ID. + :type value: int + """ + path = ["platform", "latency_thread_id"] + self.add_config_item(self._node_config, value, path) + + def add_platform_dual_if(self, value): + """Add platform dual interface configuration. + + :param value: Dual interface configuration. + :type value: list(dict) + """ + path = ["platform", "dual_if"] + self.add_config_item(self._node_config, value, path) + + def write_config(self, path=None): + """Generate and write TRex startup configuration to file. + + :param path: Override startup configuration path. + :type path: str + """ + self.serialize_config(self._node_config) + + if path is None: + path = self._startup_configuration_path + + command = f"echo \"{self._node_serialized_config}\" | sudo tee {path}" + message = "Writing TRex startup configuration failed!" + exec_cmd_no_error(self._node, command, message=message) + + +class TrexInitConfig: + """TRex Initial Configuration. + """ + @staticmethod + def init_trex_startup_configuration(node, tg_topology): + """Apply initial TRex startup configuration. + + :param node: TRex node in the topology. + :param tg_topology: Ordered TRex links. + :type node: dict + :type tg_topology: list(dict) + """ + pci_addresses = list() + dual_if = list() + port_info = list() + master_thread_id = None + latency_thread_id = None + cores = None + limit_memory = f"{Constants.TREX_LIMIT_MEMORY}" + sockets = 0 + + for link in tg_topology: + pci_addresses.append( + Topology().get_interface_pci_addr(node, link["interface"]) + ) + master_thread_id, latency_thread_id, socket, threads = \ + CpuUtils.get_affinity_trex( + node, link["interface"], tg_dtc=Constants.TREX_CORE_COUNT + ) + dual_if.append(dict(socket=socket, threads=threads)) + cores = len(threads) + port_info.append( + dict( + src_mac=Topology().get_interface_mac( + node, link["interface"] + ), + dst_mac=link["dst_mac"] + ) + ) + sockets = sockets | socket + if sockets: + limit_memory = ( + f"{Constants.TREX_LIMIT_MEMORY},{Constants.TREX_LIMIT_MEMORY}" + ) + + trex_config = TrexConfigGenerator() + trex_config.set_node(node) + trex_config.add_version() + trex_config.add_interfaces(pci_addresses) + trex_config.add_c(cores) + trex_config.add_limit_memory(limit_memory) + trex_config.add_port_info(port_info) + if Constants.TREX_RX_DESCRIPTORS_COUNT != 0: + trex_config.add_rx_desc(Constants.TREX_RX_DESCRIPTORS_COUNT) + if Constants.TREX_TX_DESCRIPTORS_COUNT != 0: + trex_config.add_rx_desc(Constants.TREX_TX_DESCRIPTORS_COUNT) + trex_config.add_platform_master_thread_id(int(master_thread_id)) + trex_config.add_platform_latency_thread_id(int(latency_thread_id)) + trex_config.add_platform_dual_if(dual_if) + trex_config.write_config() diff --git a/resources/libraries/python/TrafficGenerator.py b/resources/libraries/python/TrafficGenerator.py index 2e03b4b1dc..46c8b01f9e 100644 --- a/resources/libraries/python/TrafficGenerator.py +++ b/resources/libraries/python/TrafficGenerator.py @@ -20,7 +20,6 @@ from robot.api import logger from robot.libraries.BuiltIn import BuiltIn from .Constants import Constants -from .CpuUtils import CpuUtils from .DropRateSearch import DropRateSearch from .MLRsearch.AbstractMeasurer import AbstractMeasurer from .MLRsearch.MultipleLossRatioSearch import MultipleLossRatioSearch @@ -31,6 +30,7 @@ from .ssh import exec_cmd_no_error, exec_cmd from .topology import NodeType from .topology import NodeSubTypeTG from .topology import Topology +from .TRexConfigGenerator import TrexInitConfig from .DUTSetup import DUTSetup as DS __all__ = [u"TGDropRateSearchImpl", u"TrafficGenerator", u"OptimizedSearch"] @@ -129,18 +129,13 @@ class TrexMode: STL = u"STL" -# TODO: Pylint says too-many-instance-attributes. class TrafficGenerator(AbstractMeasurer): """Traffic Generator.""" - # TODO: Remove "trex" from lines which could work with other TGs. - # Use one instance of TrafficGenerator for all tests in test suite ROBOT_LIBRARY_SCOPE = u"TEST SUITE" def __init__(self): - # TODO: Separate into few dataclasses/dicts. - # Pylint dislikes large unstructured state, and it is right. self._node = None self._mode = None # TG interface order mapping @@ -180,7 +175,6 @@ class TrafficGenerator(AbstractMeasurer): self.state_timeout = None # Transient data needed for async measurements. self._xstats = (None, None) - # TODO: Rename "xstats" to something opaque, so T-Rex is not privileged? @property def node(self): @@ -284,15 +278,12 @@ class TrafficGenerator(AbstractMeasurer): else: return "none" - # TODO: pylint disable=too-many-locals. def initialize_traffic_generator( self, tg_node, tg_if1, tg_if2, tg_if1_adj_node, tg_if1_adj_if, tg_if2_adj_node, tg_if2_adj_if, osi_layer, tg_if1_dst_mac=None, tg_if2_dst_mac=None): """TG initialization. - TODO: Document why do we need (and how do we use) _ifaces_reordered. - :param tg_node: Traffic generator node. :param tg_if1: TG - name of first interface. :param tg_if2: TG - name of second interface. @@ -319,87 +310,32 @@ class TrafficGenerator(AbstractMeasurer): subtype = check_subtype(tg_node) if subtype == NodeSubTypeTG.TREX: self._node = tg_node - self._mode = TrexMode.ASTF if osi_layer == u"L7" else TrexMode.STL - if1 = dict() - if2 = dict() - if1[u"pci"] = Topology().get_interface_pci_addr(self._node, tg_if1) - if2[u"pci"] = Topology().get_interface_pci_addr(self._node, tg_if2) - if1[u"addr"] = Topology().get_interface_mac(self._node, tg_if1) - if2[u"addr"] = Topology().get_interface_mac(self._node, tg_if2) - - if osi_layer == u"L2": - if1[u"adj_addr"] = if2[u"addr"] - if2[u"adj_addr"] = if1[u"addr"] - elif osi_layer in (u"L3", u"L7"): - if1[u"adj_addr"] = Topology().get_interface_mac( + self._mode = TrexMode.ASTF if osi_layer == "L7" else TrexMode.STL + + if osi_layer == "L2": + tg_if1_adj_addr = Topology().get_interface_mac(tg_node, tg_if2) + tg_if2_adj_addr = Topology().get_interface_mac(tg_node, tg_if1) + elif osi_layer in ("L3", "L7"): + tg_if1_adj_addr = Topology().get_interface_mac( tg_if1_adj_node, tg_if1_adj_if ) - if2[u"adj_addr"] = Topology().get_interface_mac( + tg_if2_adj_addr = Topology().get_interface_mac( tg_if2_adj_node, tg_if2_adj_if ) else: - raise ValueError(u"Unknown OSI layer!") - - # in case of switched environment we can override MAC addresses - if tg_if1_dst_mac is not None and tg_if2_dst_mac is not None: - if1[u"adj_addr"] = tg_if1_dst_mac - if2[u"adj_addr"] = tg_if2_dst_mac - - if min(if1[u"pci"], if2[u"pci"]) != if1[u"pci"]: - if1, if2 = if2, if1 + raise ValueError("Unknown OSI layer!") + + tg_topology = list() + tg_topology.append(dict(interface=tg_if1, dst_mac=tg_if1_adj_addr)) + tg_topology.append(dict(interface=tg_if2, dst_mac=tg_if2_adj_addr)) + if1_pci = Topology().get_interface_pci_addr(self._node, tg_if1) + if2_pci = Topology().get_interface_pci_addr(self._node, tg_if2) + if min(if1_pci, if2_pci) != if1_pci: self._ifaces_reordered = True + tg_topology.sort(reverse=True) - master_thread_id, latency_thread_id, socket, threads = \ - CpuUtils.get_affinity_trex( - self._node, tg_if1, tg_if2, - tg_dtc=Constants.TREX_CORE_COUNT) - - if osi_layer in (u"L2", u"L3", u"L7"): - exec_cmd_no_error( - self._node, - f"sh -c 'cat << EOF > /etc/trex_cfg.yaml\n" - f"- version: 2\n" - f" c: {len(threads)}\n" - f" limit_memory: {Constants.TREX_LIMIT_MEMORY}\n" - f" interfaces: [\"{if1[u'pci']}\",\"{if2[u'pci']}\"]\n" - f" port_info:\n" - f" - dest_mac: \'{if1[u'adj_addr']}\'\n" - f" src_mac: \'{if1[u'addr']}\'\n" - f" - dest_mac: \'{if2[u'adj_addr']}\'\n" - f" src_mac: \'{if2[u'addr']}\'\n" - f" platform :\n" - f" master_thread_id: {master_thread_id}\n" - f" latency_thread_id: {latency_thread_id}\n" - f" dual_if:\n" - f" - socket: {socket}\n" - f" threads: {threads}\n" - f"EOF'", - sudo=True, message=u"T-Rex config generation!" - ) - - if Constants.TREX_RX_DESCRIPTORS_COUNT != 0: - exec_cmd_no_error( - self._node, - f"sh -c 'cat << EOF >> /etc/trex_cfg.yaml\n" - f" rx_desc: {Constants.TREX_RX_DESCRIPTORS_COUNT}\n" - f"EOF'", - sudo=True, message=u"T-Rex rx_desc modification!" - ) - - if Constants.TREX_TX_DESCRIPTORS_COUNT != 0: - exec_cmd_no_error( - self._node, - f"sh -c 'cat << EOF >> /etc/trex_cfg.yaml\n" - f" tx_desc: {Constants.TREX_TX_DESCRIPTORS_COUNT}\n" - f"EOF'", - sudo=True, message=u"T-Rex tx_desc modification!" - ) - else: - raise ValueError(u"Unknown OSI layer!") - - TrafficGenerator.startup_trex( - self._node, osi_layer, subtype=subtype - ) + TrexInitConfig.init_trex_startup_configuration(tg_node, tg_topology) + TrafficGenerator.startup_trex(tg_node, osi_layer, subtype=subtype) @staticmethod def startup_trex(tg_node, osi_layer, subtype=None): @@ -670,8 +606,6 @@ class TrafficGenerator(AbstractMeasurer): if not isinstance(duration, (float, int)): duration = float(duration) - # TODO: Refactor the code so duration is computed only once, - # and both the initial and the computed durations are logged. computed_duration, _ = self._compute_duration(duration, multiplier) command_line = OptionString().add(u"python3") @@ -783,8 +717,6 @@ class TrafficGenerator(AbstractMeasurer): if not isinstance(duration, (float, int)): duration = float(duration) - # TODO: Refactor the code so duration is computed only once, - # and both the initial and the computed durations are logged. duration, _ = self._compute_duration(duration=duration, multiplier=rate) command_line = OptionString().add(u"python3") @@ -808,7 +740,6 @@ class TrafficGenerator(AbstractMeasurer): command_line.add_if(u"force", Constants.TREX_SEND_FORCE) command_line.add_with_value(u"delay", Constants.PERF_TRIAL_STL_DELAY) - # TODO: This is ugly. Handle parsing better. self._start_time = time.monotonic() self._rate = float(rate[:-3]) if u"pps" in rate else float(rate) stdout, _ = exec_cmd_no_error( @@ -980,7 +911,6 @@ class TrafficGenerator(AbstractMeasurer): ) elif u"trex-stl" in self.traffic_profile: unit_rate_str = str(rate) + u"pps" - # TODO: Suport transaction_scale et al? self.trex_stl_start_remote_exec( duration, unit_rate_str, async_call ) @@ -1027,7 +957,6 @@ class TrafficGenerator(AbstractMeasurer): complete = False if self.ramp_up_rate: # Figure out whether we need to insert a ramp-up trial. - # TODO: Give up on async_call=True? if ramp_up_only or self.ramp_up_start is None: # We never ramped up yet (at least not in this test case). ramp_up_needed = True @@ -1099,8 +1028,6 @@ class TrafficGenerator(AbstractMeasurer): def fail_if_no_traffic_forwarded(self): """Fail if no traffic forwarded. - TODO: Check number of passed transactions instead. - :returns: nothing :raises Exception: If no traffic forwarded. """ @@ -1261,8 +1188,6 @@ class TrafficGenerator(AbstractMeasurer): depend on the transaction type. Usually they are in transactions per second, or aggregated packets per second. - TODO: Fail on running or already reported measurement. - :returns: Structure containing the result of the measurement. :rtype: ReceiveRateMeasurement """ @@ -1405,8 +1330,6 @@ class TrafficGenerator(AbstractMeasurer): if self.sleep_till_duration: sleeptime = time_stop - time.monotonic() if sleeptime > 0.0: - # TODO: Sometimes we have time to do additional trials here, - # adapt PLRsearch to accept all the results. time.sleep(sleeptime) return result @@ -1447,7 +1370,6 @@ class TrafficGenerator(AbstractMeasurer): :param transaction_type: An identifier specifying which counters and formulas to use when computing attempted and failed transactions. Default: "packet". - TODO: Does this also specify parsing for the measured duration? :param duration_limit: Zero or maximum limit for computed (or given) duration. :param negative_loss: If false, negative loss is reported as zero loss. @@ -1596,8 +1518,6 @@ class OptimizedSearch: u"resources.libraries.python.TrafficGenerator" ) # Overrides for fixed transaction amount. - # TODO: Move to robot code? We have two call sites, so this saves space, - # even though this is surprising for log readers. if transaction_scale: initial_trial_duration = 1.0 final_trial_duration = 1.0 @@ -1725,11 +1645,7 @@ class OptimizedSearch: u"resources.libraries.python.TrafficGenerator" ) # Overrides for fixed transaction amount. - # TODO: Move to robot code? We have a single call site - # but MLRsearch has two and we want the two to be used similarly. if transaction_scale: - # TODO: What is a good value for max scale? - # TODO: Scale the timeout with transaction scale. timeout = 7200.0 tg_instance.set_rate_provider_defaults( frame_size=frame_size, |