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 import logging
  16
  17 from yardstick.network_services.traffic_profile.trex_traffic_profile import \
  18     TrexProfile
  19
  20 LOG = logging.getLogger(__name__)
  21
  22
  23 class IXIARFC2544Profile(TrexProfile):
  24
  25     UPLINK = 'uplink'
  26     DOWNLINK = 'downlink'
  27
  28     def _get_ixia_traffic_profile(self, profile_data, mac=None):
  29         if mac is None:
  30             mac = {}
  31
  32         result = {}
  33         for traffickey, values in profile_data.items():
  34             if not traffickey.startswith((self.UPLINK, self.DOWNLINK)):
  35                 continue
  36
  37             try:
  38                 # values should be single-item dict, so just grab the first item
  39                 try:
  40                     key, value = next(iter(values.items()))
  41                 except StopIteration:
  42                     result[traffickey] = {}
  43                     continue
  44
  45                 port_id = value.get('id', 1)
  46                 port_index = port_id - 1
  47                 try:
  48                     ip = value['outer_l3v6']
  49                 except KeyError:
  50                     ip = value['outer_l3v4']
  51                     src_key, dst_key = 'srcip4', 'dstip4'
  52                 else:
  53                     src_key, dst_key = 'srcip6', 'dstip6'
  54
  55                 result[traffickey] = {
  56                     'bidir': False,
  57                     'iload': '100',
  58                     'id': port_id,
  59                     'outer_l2': {
  60                         'framesize': value['outer_l2']['framesize'],
  61                         'framesPerSecond': True,
  62                         'srcmac': mac['src_mac_{}'.format(port_index)],
  63                         'dstmac': mac['dst_mac_{}'.format(port_index)],
  64                     },
  65                     'outer_l3': {
  66                         'count': ip['count'],
  67                         'dscp': ip['dscp'],
  68                         'ttl': ip['ttl'],
  69                         src_key: ip[src_key].split("-")[0],
  70                         dst_key: ip[dst_key].split("-")[0],
  71                         'type': key,
  72                         'proto': ip['proto'],
  73                     },
  74                     'outer_l4': value['outer_l4'],
  75                 }
  76             except KeyError:
  77                 continue
  78
  79         return result
  80
  81     def _ixia_traffic_generate(self, traffic, ixia_obj):
  82         for key, value in traffic.items():
  83             if key.startswith((self.UPLINK, self.DOWNLINK)):
  84                 value['iload'] = str(self.rate)
  85         ixia_obj.update_frame(traffic)
  86         ixia_obj.update_ip_packet(traffic)
  87         ixia_obj.start_traffic()
  88
  89     def update_traffic_profile(self, traffic_generator):
  90         def port_generator():
  91             for vld_id, intfs in sorted(traffic_generator.networks.items()):
  92                 if not vld_id.startswith((self.UPLINK, self.DOWNLINK)):
  93                     continue
  94                 profile_data = self.params.get(vld_id)
  95                 if not profile_data:
  96                     continue
  97                 self.profile_data = profile_data
  98                 self.get_streams(self.profile_data)
  99                 self.full_profile.update({vld_id: self.profile_data})
 100                 for intf in intfs:
 101                     yield traffic_generator.vnfd_helper.port_num(intf)
 102
 103         self.ports = [port for port in port_generator()]
 104
 105     def execute_traffic(self, traffic_generator, ixia_obj=None, mac=None):
 106         mac = {} if mac is None else mac
 107         first_run = self.first_run
 108         if self.first_run:
 109             self.first_run = False
 110             self.full_profile = {}
 111             self.pg_id = 0
 112             self.update_traffic_profile(traffic_generator)
 113             self.max_rate = self.rate
 114             self.min_rate = 0
 115         else:
 116             self.rate = round(float(self.max_rate + self.min_rate) / 2.0, 2)
 117
 118         traffic = self._get_ixia_traffic_profile(self.full_profile, mac)
 119         self._ixia_traffic_generate(traffic, ixia_obj)
 120         return first_run
 121
 122     def get_drop_percentage(self, samples, tol_min, tolerance, duration=30.0,
 123                             first_run=False):
 124         completed = False
 125         drop_percent = 100
 126         num_ifaces = len(samples)
 127         in_packets_sum = sum(
 128             [samples[iface]['in_packets'] for iface in samples])
 129         out_packets_sum = sum(
 130             [samples[iface]['out_packets'] for iface in samples])
 131         rx_throughput = sum(
 132             [samples[iface]['RxThroughput'] for iface in samples])
 133         rx_throughput = round(float(rx_throughput), 2)
 134         tx_throughput = sum(
 135             [samples[iface]['TxThroughput'] for iface in samples])
 136         tx_throughput = round(float(tx_throughput), 2)
 137         packet_drop = abs(out_packets_sum - in_packets_sum)
 138
 139         try:
 140             drop_percent = round(
 141                 (packet_drop / float(out_packets_sum)) * 100, 2)
 142         except ZeroDivisionError:
 143             LOG.info('No traffic is flowing')
 144
 145         samples['TxThroughput'] = tx_throughput
 146         samples['RxThroughput'] = rx_throughput
 147         samples['DropPercentage'] = drop_percent
 148
 149         if first_run:
 150             self.rate = out_packets_sum / duration / num_ifaces
 151             completed = True if drop_percent <= tolerance else False
 152
 153         if drop_percent > tolerance:
 154             self.max_rate = self.rate
 155         elif drop_percent < tol_min:
 156             self.min_rate = self.rate
 157         else:
 158             completed = True
 159
 160         return completed, samples