1 # Copyright (c) 2016-2017 Intel Corporation
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
15 from __future__ import absolute_import
22 from yardstick.common import utils
23 from yardstick import error
24 from yardstick.network_services.vnf_generic.vnf.sample_vnf import SampleVNFTrafficGen
25 from yardstick.network_services.vnf_generic.vnf.sample_vnf import ClientResourceHelper
26 from yardstick.network_services.vnf_generic.vnf.sample_vnf import Rfc2544ResourceHelper
28 LOG = logging.getLogger(__name__)
30 WAIT_AFTER_CFG_LOAD = 10
32 IXIA_LIB = os.path.dirname(os.path.realpath(__file__))
33 IXNET_LIB = os.path.join(IXIA_LIB, "../../libs/ixia_libs/IxNet")
34 sys.path.append(IXNET_LIB)
37 from IxNet import IxNextgen
39 IxNextgen = error.ErrorClass
42 class IxiaRfc2544Helper(Rfc2544ResourceHelper):
45 return self.latency and self.iteration.value > 10
48 class IxiaResourceHelper(ClientResourceHelper):
50 LATENCY_TIME_SLEEP = 120
52 def __init__(self, setup_helper, rfc_helper_type=None):
53 super(IxiaResourceHelper, self).__init__(setup_helper)
54 self.scenario_helper = setup_helper.scenario_helper
56 self.client = IxNextgen()
58 if rfc_helper_type is None:
59 rfc_helper_type = IxiaRfc2544Helper
61 self.rfc_helper = rfc_helper_type(self.scenario_helper)
62 self.uplink_ports = None
63 self.downlink_ports = None
66 def _connect(self, client=None):
67 self.client._connect(self.vnfd_helper)
69 def get_stats(self, *args, **kwargs):
70 return self.client.ix_get_statistics()
72 def stop_collect(self):
73 self._terminated.value = 1
75 self.client.ix_stop_traffic()
77 def generate_samples(self, ports, key=None, default=None):
78 stats = self.get_stats()
79 last_result = stats[1]
83 # this is not DPDK port num, but this is whatever number we gave
84 # when we selected ports and programmed the profile
85 for port_num in ports:
87 # reverse lookup port name from port_num so the stats dict is descriptive
88 intf = self.vnfd_helper.find_interface_by_port(port_num)
89 port_name = intf["name"]
90 samples[port_name] = {
91 "rx_throughput_kps": float(last_result["Rx_Rate_Kbps"][port_num]),
92 "tx_throughput_kps": float(last_result["Tx_Rate_Kbps"][port_num]),
93 "rx_throughput_mbps": float(last_result["Rx_Rate_Mbps"][port_num]),
94 "tx_throughput_mbps": float(last_result["Tx_Rate_Mbps"][port_num]),
95 "in_packets": int(last_result["Valid_Frames_Rx"][port_num]),
96 "out_packets": int(last_result["Frames_Tx"][port_num]),
97 "RxThroughput": int(last_result["Valid_Frames_Rx"][port_num]) / 30,
98 "TxThroughput": int(last_result["Frames_Tx"][port_num]) / 30,
101 avg_latency = latency["Store-Forward_Avg_latency_ns"][port_num]
102 min_latency = latency["Store-Forward_Min_latency_ns"][port_num]
103 max_latency = latency["Store-Forward_Max_latency_ns"][port_num]
104 samples[port_name][key] = \
105 {"Store-Forward_Avg_latency_ns": avg_latency,
106 "Store-Forward_Min_latency_ns": min_latency,
107 "Store-Forward_Max_latency_ns": max_latency}
113 def run_traffic(self, traffic_profile):
114 if self._terminated.value:
117 min_tol = self.rfc_helper.tolerance_low
118 max_tol = self.rfc_helper.tolerance_high
119 default = "00:00:00:00:00:00"
123 # we don't know client_file_name until runtime as instantiate
125 utils.find_relative_file(
126 self.scenario_helper.scenario_cfg['ixia_profile'],
127 self.scenario_helper.scenario_cfg["task_path"])
128 self.client.ix_load_config(client_file_name)
129 time.sleep(WAIT_AFTER_CFG_LOAD)
131 self.client.ix_assign_ports()
134 for port_name in self.vnfd_helper.port_pairs.all_ports:
135 intf = self.vnfd_helper.find_interface(name=port_name)
136 virt_intf = intf["virtual-interface"]
137 # we only know static traffic id by reading the json
138 # this is used by _get_ixia_trafficrofile
139 port_num = self.vnfd_helper.port_num(intf)
140 mac["src_mac_{}".format(port_num)] = virt_intf.get("local_mac", default)
141 mac["dst_mac_{}".format(port_num)] = virt_intf.get("dst_mac", default)
144 # Generate ixia traffic config...
146 while not self._terminated.value:
147 traffic_profile.execute_traffic(self, self.client, mac)
148 self.client_started.value = 1
149 time.sleep(WAIT_FOR_TRAFFIC)
150 self.client.ix_stop_traffic()
151 samples = self.generate_samples(traffic_profile.ports)
152 self._queue.put(samples)
153 status, samples = traffic_profile.get_drop_percentage(samples, min_tol,
154 max_tol, self.client, mac)
156 current = samples['CurrentDropPercentage']
157 if min_tol <= current <= max_tol or status == 'Completed':
158 self._terminated.value = 1
160 self.client.ix_stop_traffic()
161 self._queue.put(samples)
163 if not self.rfc_helper.is_done():
164 self._terminated.value = 1
167 traffic_profile.execute_traffic(self, self.client, mac)
169 time.sleep(self.LATENCY_TIME_SLEEP)
170 self.client.ix_stop_traffic()
171 samples = self.generate_samples(traffic_profile.ports, 'latency', {})
172 self._queue.put(samples)
173 traffic_profile.start_ixia_latency(self, self.client, mac)
174 if self._terminated.value:
177 self.client.ix_stop_traffic()
178 except Exception: # pylint: disable=broad-except
179 LOG.exception("Run Traffic terminated")
181 self._terminated.value = 1
183 def collect_kpi(self):
184 self.rfc_helper.iteration.value += 1
185 return super(IxiaResourceHelper, self).collect_kpi()
188 class IxiaTrafficGen(SampleVNFTrafficGen):
192 def __init__(self, name, vnfd, setup_env_helper_type=None, resource_helper_type=None):
193 if resource_helper_type is None:
194 resource_helper_type = IxiaResourceHelper
196 super(IxiaTrafficGen, self).__init__(name, vnfd, setup_env_helper_type,
197 resource_helper_type)
198 self._ixia_traffic_gen = None
199 self.ixia_file_name = ''
200 self.vnf_port_pairs = []
202 def _check_status(self):
206 self.resource_helper.stop_collect()
207 super(IxiaTrafficGen, self).terminate()