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.common import utils
  18 from yardstick.network_services.traffic_profile import base as tp_base
  19 from yardstick.network_services.traffic_profile import trex_traffic_profile
  20
  21
  22 LOG = logging.getLogger(__name__)
  23
  24
  25 class IXIARFC2544Profile(trex_traffic_profile.TrexProfile):
  26
  27     UPLINK = 'uplink'
  28     DOWNLINK = 'downlink'
  29     DROP_PERCENT_ROUND = 6
  30     RATE_ROUND = 5
  31
  32     def __init__(self, yaml_data):
  33         super(IXIARFC2544Profile, self).__init__(yaml_data)
  34         self.rate = self.config.frame_rate
  35         self.rate_unit = self.config.rate_unit
  36
  37     def _get_ip_and_mask(self, ip_range):
  38         _ip_range = ip_range.split('-')
  39         if len(_ip_range) == 1:
  40             return _ip_range[0], None
  41
  42         mask = utils.get_mask_from_ip_range(_ip_range[0], _ip_range[1])
  43         return _ip_range[0], mask
  44
  45     def _get_fixed_and_mask(self, port_range):
  46         _port_range = str(port_range).split('-')
  47         if len(_port_range) == 1:
  48             return int(_port_range[0]), 0
  49
  50         return int(_port_range[0]), int(_port_range[1])
  51
  52     def _get_ixia_traffic_profile(self, profile_data, mac=None):
  53         mac = {} if mac is None else mac
  54         result = {}
  55         for traffickey, values in profile_data.items():
  56             if not traffickey.startswith((self.UPLINK, self.DOWNLINK)):
  57                 continue
  58
  59             try:
  60                 # values should be single-item dict, so just grab the first item
  61                 try:
  62                     key, value = next(iter(values.items()))
  63                 except StopIteration:
  64                     result[traffickey] = {}
  65                     continue
  66
  67                 port_id = value.get('id', 1)
  68                 port_index = port_id - 1
  69
  70                 if value.get('outer_l3v4'):
  71                     ip = value['outer_l3v4']
  72                     src_key, dst_key = 'srcip4', 'dstip4'
  73                 else:
  74                     ip = value['outer_l3v6']
  75                     src_key, dst_key = 'srcip6', 'dstip6'
  76
  77                 srcip, srcmask = self._get_ip_and_mask(ip[src_key])
  78                 dstip, dstmask = self._get_ip_and_mask(ip[dst_key])
  79
  80                 outer_l4 = value.get('outer_l4')
  81                 src_port, src_port_mask = self._get_fixed_and_mask(outer_l4['srcport'])
  82                 dst_port, dst_port_mask = self._get_fixed_and_mask(outer_l4['dstport'])
  83                 result[traffickey] = {
  84                     'bidir': False,
  85                     'id': port_id,
  86                     'rate': self.rate,
  87                     'rate_unit': self.rate_unit,
  88                     'outer_l2': {
  89                         'framesize': value['outer_l2']['framesize'],
  90                         'framesPerSecond': True,
  91                         'QinQ': value['outer_l2'].get('QinQ'),
  92                         'srcmac': mac['src_mac_{}'.format(port_index)],
  93                         'dstmac': mac['dst_mac_{}'.format(port_index)],
  94                     },
  95                     'outer_l3': {
  96                         'count': ip['count'],
  97                         'dscp': ip['dscp'],
  98                         'ttl': ip['ttl'],
  99                         'srcseed': ip.get('srcseed', 1),
 100                         'dstseed': ip.get('dstseed', 1),
 101                         'srcip': srcip,
 102                         'dstip': dstip,
 103                         'srcmask': srcmask,
 104                         'dstmask': dstmask,
 105                         'type': key,
 106                         'proto': ip['proto'],
 107                     },
 108                     'outer_l4': {
 109                         'srcport': src_port,
 110                         'dstport': dst_port,
 111                         'srcportmask': src_port_mask,
 112                         'dstportmask': dst_port_mask,
 113                         'count': outer_l4['count'],
 114                         'seed': outer_l4.get('seed', 1)
 115                     }
 116
 117                 }
 118             except KeyError:
 119                 continue
 120
 121         return result
 122
 123     def _ixia_traffic_generate(self, traffic, ixia_obj):
 124         ixia_obj.update_frame(traffic, self.config.duration)
 125         ixia_obj.update_ip_packet(traffic)
 126         ixia_obj.update_l4(traffic)
 127         ixia_obj.start_traffic()
 128
 129     def update_traffic_profile(self, traffic_generator):
 130         def port_generator():
 131             for vld_id, intfs in sorted(traffic_generator.networks.items()):
 132                 if not vld_id.startswith((self.UPLINK, self.DOWNLINK)):
 133                     continue
 134                 profile_data = self.params.get(vld_id)
 135                 if not profile_data:
 136                     continue
 137                 self.profile_data = profile_data
 138                 self.full_profile.update({vld_id: self.profile_data})
 139                 for intf in intfs:
 140                     yield traffic_generator.vnfd_helper.port_num(intf)
 141
 142         self.ports = [port for port in port_generator()]
 143
 144     def execute_traffic(self, traffic_generator, ixia_obj=None, mac=None):
 145         mac = {} if mac is None else mac
 146         first_run = self.first_run
 147         if self.first_run:
 148             self.first_run = False
 149             self.full_profile = {}
 150             self.pg_id = 0
 151             self.update_traffic_profile(traffic_generator)
 152             self.max_rate = self.rate
 153             self.min_rate = 0.0
 154         else:
 155             self.rate = round(float(self.max_rate + self.min_rate) / 2.0,
 156                               self.RATE_ROUND)
 157
 158         traffic = self._get_ixia_traffic_profile(self.full_profile, mac)
 159         self._ixia_traffic_generate(traffic, ixia_obj)
 160         return first_run
 161
 162     def get_drop_percentage(self, samples, tol_min, tolerance,
 163                             first_run=False):
 164         completed = False
 165         drop_percent = 100
 166         num_ifaces = len(samples)
 167         duration = self.config.duration
 168         in_packets_sum = sum(
 169             [samples[iface]['in_packets'] for iface in samples])
 170         out_packets_sum = sum(
 171             [samples[iface]['out_packets'] for iface in samples])
 172         rx_throughput = round(float(in_packets_sum) / duration, 3)
 173         tx_throughput = round(float(out_packets_sum) / duration, 3)
 174         packet_drop = abs(out_packets_sum - in_packets_sum)
 175
 176         try:
 177             drop_percent = round(
 178                 (packet_drop / float(out_packets_sum)) * 100,
 179                 self.DROP_PERCENT_ROUND)
 180         except ZeroDivisionError:
 181             LOG.info('No traffic is flowing')
 182
 183         if first_run:
 184             completed = True if drop_percent <= tolerance else False
 185         if (first_run and
 186                 self.rate_unit == tp_base.TrafficProfileConfig.RATE_FPS):
 187             self.rate = float(out_packets_sum) / duration / num_ifaces
 188
 189         if drop_percent > tolerance:
 190             self.max_rate = self.rate
 191         elif drop_percent < tol_min:
 192             self.min_rate = self.rate
 193         else:
 194             completed = True
 195
 196         latency_ns_avg = float(
 197             sum([samples[iface]['Store-Forward_Avg_latency_ns']
 198             for iface in samples])) / num_ifaces
 199         latency_ns_min = float(
 200             sum([samples[iface]['Store-Forward_Min_latency_ns']
 201             for iface in samples])) / num_ifaces
 202         latency_ns_max = float(
 203             sum([samples[iface]['Store-Forward_Max_latency_ns']
 204             for iface in samples])) / num_ifaces
 205
 206         samples['TxThroughput'] = tx_throughput
 207         samples['RxThroughput'] = rx_throughput
 208         samples['DropPercentage'] = drop_percent
 209         samples['latency_ns_avg'] = latency_ns_avg
 210         samples['latency_ns_min'] = latency_ns_min
 211         samples['latency_ns_max'] = latency_ns_max
 212
 213         return completed, samples