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     STATUS_SUCCESS = "Success"
  32     STATUS_FAIL = "Failure"
  33
  34     def __init__(self, yaml_data):
  35         super(IXIARFC2544Profile, self).__init__(yaml_data)
  36         self.rate = self.config.frame_rate
  37         self.rate_unit = self.config.rate_unit
  38
  39     def _get_ip_and_mask(self, ip_range):
  40         _ip_range = ip_range.split('-')
  41         if len(_ip_range) == 1:
  42             return _ip_range[0], None
  43
  44         mask = utils.get_mask_from_ip_range(_ip_range[0], _ip_range[1])
  45         return _ip_range[0], mask
  46
  47     def _get_fixed_and_mask(self, port_range):
  48         _port_range = str(port_range).split('-')
  49         if len(_port_range) == 1:
  50             return int(_port_range[0]), 0
  51
  52         return int(_port_range[0]), int(_port_range[1])
  53
  54     def _get_ixia_traffic_profile(self, profile_data, mac=None):
  55         mac = {} if mac is None else mac
  56         result = {}
  57         for traffickey, values in profile_data.items():
  58             if not traffickey.startswith((self.UPLINK, self.DOWNLINK)):
  59                 continue
  60
  61             # values should be single-item dict, so just grab the first item
  62             try:
  63                 key, value = next(iter(values.items()))
  64             except StopIteration:
  65                 result[traffickey] = {}
  66                 continue
  67
  68             port_id = value.get('id', 1)
  69             port_index = port_id - 1
  70
  71             result[traffickey] = {
  72                 'bidir': False,
  73                 'id': port_id,
  74                 'rate': self.rate,
  75                 'rate_unit': self.rate_unit,
  76                 'outer_l2': {},
  77                 'outer_l3': {},
  78                 'outer_l4': {},
  79             }
  80
  81             outer_l2 = value.get('outer_l2')
  82             if outer_l2:
  83                 result[traffickey]['outer_l2'].update({
  84                     'framesize': outer_l2.get('framesize'),
  85                     'framesPerSecond': True,
  86                     'QinQ': outer_l2.get('QinQ'),
  87                     'srcmac': mac.get('src_mac_{}'.format(port_index)),
  88                     'dstmac': mac.get('dst_mac_{}'.format(port_index)),
  89                 })
  90
  91             if value.get('outer_l3v4'):
  92                 outer_l3 = value['outer_l3v4']
  93                 src_key, dst_key = 'srcip4', 'dstip4'
  94             else:
  95                 outer_l3 = value.get('outer_l3v6')
  96                 src_key, dst_key = 'srcip6', 'dstip6'
  97             if outer_l3:
  98                 srcip = srcmask = dstip = dstmask = None
  99                 if outer_l3.get(src_key):
 100                     srcip, srcmask = self._get_ip_and_mask(outer_l3[src_key])
 101                 if outer_l3.get(dst_key):
 102                     dstip, dstmask = self._get_ip_and_mask(outer_l3[dst_key])
 103
 104                 result[traffickey]['outer_l3'].update({
 105                     'count': outer_l3.get('count', 1),
 106                     'dscp': outer_l3.get('dscp'),
 107                     'ttl': outer_l3.get('ttl'),
 108                     'srcseed': outer_l3.get('srcseed', 1),
 109                     'dstseed': outer_l3.get('dstseed', 1),
 110                     'srcip': srcip,
 111                     'dstip': dstip,
 112                     'srcmask': srcmask,
 113                     'dstmask': dstmask,
 114                     'type': key,
 115                     'proto': outer_l3.get('proto'),
 116                     'priority': outer_l3.get('priority')
 117                 })
 118
 119             outer_l4 = value.get('outer_l4')
 120             if outer_l4:
 121                 src_port = src_port_mask = dst_port = dst_port_mask = None
 122                 if outer_l4.get('srcport'):
 123                     src_port, src_port_mask = (
 124                         self._get_fixed_and_mask(outer_l4['srcport']))
 125
 126                 if outer_l4.get('dstport'):
 127                     dst_port, dst_port_mask = (
 128                         self._get_fixed_and_mask(outer_l4['dstport']))
 129
 130                 result[traffickey]['outer_l4'].update({
 131                     'srcport': src_port,
 132                     'dstport': dst_port,
 133                     'srcportmask': src_port_mask,
 134                     'dstportmask': dst_port_mask,
 135                     'count': outer_l4.get('count', 1),
 136                     'seed': outer_l4.get('seed', 1),
 137                 })
 138
 139         return result
 140
 141     def _ixia_traffic_generate(self, traffic, ixia_obj):
 142         ixia_obj.update_frame(traffic, self.config.duration)
 143         ixia_obj.update_ip_packet(traffic)
 144         ixia_obj.update_l4(traffic)
 145         ixia_obj.start_traffic()
 146
 147     def update_traffic_profile(self, traffic_generator):
 148         def port_generator():
 149             for vld_id, intfs in sorted(traffic_generator.networks.items()):
 150                 if not vld_id.startswith((self.UPLINK, self.DOWNLINK)):
 151                     continue
 152                 profile_data = self.params.get(vld_id)
 153                 if not profile_data:
 154                     continue
 155                 self.profile_data = profile_data
 156                 self.full_profile.update({vld_id: self.profile_data})
 157                 for intf in intfs:
 158                     yield traffic_generator.vnfd_helper.port_num(intf)
 159
 160         self.ports = [port for port in port_generator()]
 161
 162     def execute_traffic(self, traffic_generator, ixia_obj=None, mac=None):
 163         mac = {} if mac is None else mac
 164         first_run = self.first_run
 165         if self.first_run:
 166             self.first_run = False
 167             self.full_profile = {}
 168             self.pg_id = 0
 169             self.update_traffic_profile(traffic_generator)
 170             self.max_rate = self.rate
 171             self.min_rate = 0.0
 172         else:
 173             self.rate = round(float(self.max_rate + self.min_rate) / 2.0,
 174                               self.RATE_ROUND)
 175
 176         traffic = self._get_ixia_traffic_profile(self.full_profile, mac)
 177         self._ixia_traffic_generate(traffic, ixia_obj)
 178         return first_run
 179
 180     def get_drop_percentage(self, samples, tol_min, tolerance, precision,
 181                             first_run=False):
 182         completed = False
 183         drop_percent = 100
 184         num_ifaces = len(samples)
 185         duration = self.config.duration
 186         in_packets_sum = sum(
 187             [samples[iface]['in_packets'] for iface in samples])
 188         out_packets_sum = sum(
 189             [samples[iface]['out_packets'] for iface in samples])
 190         rx_throughput = round(float(in_packets_sum) / duration, 3)
 191         tx_throughput = round(float(out_packets_sum) / duration, 3)
 192         packet_drop = abs(out_packets_sum - in_packets_sum)
 193
 194         try:
 195             drop_percent = round(
 196                 (packet_drop / float(out_packets_sum)) * 100,
 197                 self.DROP_PERCENT_ROUND)
 198         except ZeroDivisionError:
 199             LOG.info('No traffic is flowing')
 200
 201         if first_run:
 202             completed = True if drop_percent <= tolerance else False
 203         if (first_run and
 204                 self.rate_unit == tp_base.TrafficProfileConfig.RATE_FPS):
 205             self.rate = float(out_packets_sum) / duration / num_ifaces
 206
 207         if drop_percent > tolerance:
 208             self.max_rate = self.rate
 209         elif drop_percent < tol_min:
 210             self.min_rate = self.rate
 211         else:
 212             completed = True
 213
 214         LOG.debug("tolerance=%s, tolerance_precision=%s drop_percent=%s "
 215                   "completed=%s", tolerance, precision, drop_percent,
 216                   completed)
 217
 218         latency_ns_avg = float(
 219             sum([samples[iface]['Store-Forward_Avg_latency_ns']
 220             for iface in samples])) / num_ifaces
 221         latency_ns_min = float(
 222             sum([samples[iface]['Store-Forward_Min_latency_ns']
 223             for iface in samples])) / num_ifaces
 224         latency_ns_max = float(
 225             sum([samples[iface]['Store-Forward_Max_latency_ns']
 226             for iface in samples])) / num_ifaces
 227
 228         samples['Status'] = self.STATUS_FAIL
 229         if round(drop_percent, precision) <= tolerance:
 230             samples['Status'] = self.STATUS_SUCCESS
 231
 232         samples['TxThroughput'] = tx_throughput
 233         samples['RxThroughput'] = rx_throughput
 234         samples['DropPercentage'] = drop_percent
 235         samples['latency_ns_avg'] = latency_ns_avg
 236         samples['latency_ns_min'] = latency_ns_min
 237         samples['latency_ns_max'] = latency_ns_max
 238
 239         return completed, samples