yardstick/network_services/traffic_profile/ixia_rfc2544.py

   1 # Copyright (c) 2016-2017 Intel Corporation
   2 #
   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
   6 #
   7 #      http://www.apache.org/licenses/LICENSE-2.0
   8 #
   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.
  14
  15 from __future__ import absolute_import
  16 import logging
  17 import json
  18
  19 from yardstick.network_services.traffic_profile.traffic_profile import \
  20     TrexProfile
  21
  22 LOG = logging.getLogger(__name__)
  23
  24
  25 class IXIARFC2544Profile(TrexProfile):
  26
  27     def _get_ixia_traffic_profile(self, profile_data, mac=None, xfile=None, static_traffic=None):
  28         if mac is None:
  29             mac = {}
  30
  31         if static_traffic is None:
  32             static_traffic = {}
  33
  34         result = {}
  35         if xfile:
  36             with open(xfile) as stream:
  37                 try:
  38                     static_traffic = json.load(stream)
  39                 except Exception as exc:
  40                     LOG.debug(exc)
  41
  42         for traffickey, trafficvalue in static_traffic.items():
  43             traffic = static_traffic[traffickey]
  44             # outer_l2
  45             index = 0
  46             for key, value in profile_data[traffickey].items():
  47                 framesize = value['outer_l2']['framesize']
  48                 traffic['outer_l2']['framesize'] = framesize
  49                 traffic['framesPerSecond'] = True
  50                 traffic['bidir'] = False
  51                 traffic['outer_l2']['srcmac'] = \
  52                     mac["src_mac_{}".format(traffic['id'])]
  53                 traffic['outer_l2']['dstmac'] = \
  54                     mac["dst_mac_{}".format(traffic['id'])]
  55
  56                 # outer_l3
  57                 if "outer_l3v6" in list(value.keys()):
  58                     traffic['outer_l3'] = value['outer_l3v6']
  59                     srcip4 = value['outer_l3v6']['srcip6']
  60                     traffic['outer_l3']['srcip4'] = srcip4.split("-")[0]
  61                     dstip4 = value['outer_l3v6']['dstip6']
  62                     traffic['outer_l3']['dstip4'] = dstip4.split("-")[0]
  63                 else:
  64                     traffic['outer_l3'] = value['outer_l3v4']
  65                     srcip4 = value['outer_l3v4']['srcip4']
  66                     traffic['outer_l3']['srcip4'] = srcip4.split("-")[0]
  67                     dstip4 = value['outer_l3v4']['dstip4']
  68                     traffic['outer_l3']['dstip4'] = dstip4.split("-")[0]
  69
  70                 traffic['outer_l3']['type'] = key
  71                 traffic['outer_l3']['count'] = value['outer_l3v4']['count']
  72                 # outer_l4
  73                 traffic['outer_l4'] = value['outer_l4']
  74                 index = index + 1
  75             result.update({traffickey: traffic})
  76
  77         return result
  78
  79     def _ixia_traffic_generate(self, traffic_generator, traffic, ixia_obj):
  80         for key, value in traffic.items():
  81             if key.startswith((self.UPLINK, self.DOWNLINK)):
  82                 value["iload"] = str(self.rate)
  83         ixia_obj.ix_update_frame(traffic)
  84         ixia_obj.ix_update_ether(traffic)
  85         ixia_obj.add_ip_header(traffic, 4)
  86         ixia_obj.ix_start_traffic()
  87         self.tmp_drop = 0
  88         self.tmp_throughput = 0
  89
  90     def update_traffic_profile(self, traffic_generator):
  91         def port_generator():
  92             for vld_id, intfs in sorted(traffic_generator.networks.items()):
  93                 if not vld_id.startswith((self.UPLINK, self.DOWNLINK)):
  94                     continue
  95                 profile_data = self.params.get(vld_id)
  96                 if not profile_data:
  97                     continue
  98                 self.profile_data = profile_data
  99                 self.get_streams(self.profile_data)
 100                 self.full_profile.update({vld_id: self.profile_data})
 101                 for intf in intfs:
 102                     yield traffic_generator.vnfd_helper.port_num(intf)
 103
 104         self.ports = [port for port in port_generator()]
 105
 106     def execute_traffic(self, traffic_generator, ixia_obj, mac=None, xfile=None):
 107         if mac is None:
 108             mac = {}
 109         if self.first_run:
 110             self.full_profile = {}
 111             self.pg_id = 0
 112             self.update_traffic_profile(traffic_generator)
 113             traffic = \
 114                 self._get_ixia_traffic_profile(self.full_profile, mac, xfile)
 115             self.max_rate = self.rate
 116             self.min_rate = 0
 117             self.get_multiplier()
 118             self._ixia_traffic_generate(traffic_generator, traffic, ixia_obj)
 119
 120     def get_multiplier(self):
 121         self.rate = round((self.max_rate + self.min_rate) / 2.0, 2)
 122         multiplier = round(self.rate / self.pps, 2)
 123         return str(multiplier)
 124
 125     def start_ixia_latency(self, traffic_generator, ixia_obj,
 126                            mac=None, xfile=None):
 127         if mac is None:
 128             mac = {}
 129         self.update_traffic_profile(traffic_generator)
 130         traffic = \
 131             self._get_ixia_traffic_profile(self.full_profile, mac, xfile)
 132         self._ixia_traffic_generate(traffic_generator, traffic, ixia_obj)
 133
 134     def get_drop_percentage(self, traffic_generator, samples, tol_min,
 135                             tolerance, ixia_obj, mac=None, xfile=None):
 136         if mac is None:
 137             mac = {}
 138         status = 'Running'
 139         drop_percent = 100
 140         in_packets = sum([samples[iface]['in_packets'] for iface in samples])
 141         out_packets = sum([samples[iface]['out_packets'] for iface in samples])
 142         rx_throughput = \
 143             sum([samples[iface]['RxThroughput'] for iface in samples])
 144         tx_throughput = \
 145             sum([samples[iface]['TxThroughput'] for iface in samples])
 146         packet_drop = abs(out_packets - in_packets)
 147         try:
 148             drop_percent = round((packet_drop / float(out_packets)) * 100, 2)
 149         except ZeroDivisionError:
 150             LOG.info('No traffic is flowing')
 151         samples['TxThroughput'] = round(tx_throughput / 1.0, 2)
 152         samples['RxThroughput'] = round(rx_throughput / 1.0, 2)
 153         samples['CurrentDropPercentage'] = drop_percent
 154         samples['Throughput'] = self.tmp_throughput
 155         samples['DropPercentage'] = self.tmp_drop
 156         if drop_percent > tolerance and self.tmp_throughput == 0:
 157             samples['Throughput'] = round(rx_throughput / 1.0, 2)
 158             samples['DropPercentage'] = drop_percent
 159         if self.first_run:
 160             max_supported_rate = out_packets / 30.0
 161             self.rate = max_supported_rate
 162             self.first_run = False
 163             if drop_percent <= tolerance:
 164                 status = 'Completed'
 165         if drop_percent > tolerance:
 166             self.max_rate = self.rate
 167         elif drop_percent < tol_min:
 168             self.min_rate = self.rate
 169             if drop_percent >= self.tmp_drop:
 170                 self.tmp_drop = drop_percent
 171                 self.tmp_throughput = round((rx_throughput / 1.0), 2)
 172                 samples['Throughput'] = round(rx_throughput / 1.0, 2)
 173                 samples['DropPercentage'] = drop_percent
 174         else:
 175             samples['Throughput'] = round(rx_throughput / 1.0, 2)
 176             samples['DropPercentage'] = drop_percent
 177             return status, samples
 178         self.get_multiplier()
 179         traffic = self._get_ixia_traffic_profile(self.full_profile, mac, xfile)
 180         self._ixia_traffic_generate(traffic_generator, traffic, ixia_obj)
 181         return status, samples