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             frame_rate = value.get('frame_rate')
  82             if frame_rate:
  83                 flow_rate, flow_rate_unit = self.config.parse_rate(frame_rate)
  84                 result[traffickey]['rate'] = flow_rate
  85                 result[traffickey]['rate_unit'] = flow_rate_unit
  86
  87             outer_l2 = value.get('outer_l2')
  88             if outer_l2:
  89                 result[traffickey]['outer_l2'].update({
  90                     'framesize': outer_l2.get('framesize'),
  91                     'framesPerSecond': True,
  92                     'QinQ': outer_l2.get('QinQ'),
  93                     'srcmac': mac.get('src_mac_{}'.format(port_index)),
  94                     'dstmac': mac.get('dst_mac_{}'.format(port_index)),
  95                 })
  96
  97             if value.get('outer_l3v4'):
  98                 outer_l3 = value['outer_l3v4']
  99                 src_key, dst_key = 'srcip4', 'dstip4'
 100             else:
 101                 outer_l3 = value.get('outer_l3v6')
 102                 src_key, dst_key = 'srcip6', 'dstip6'
 103             if outer_l3:
 104                 srcip = srcmask = dstip = dstmask = None
 105                 if outer_l3.get(src_key):
 106                     srcip, srcmask = self._get_ip_and_mask(outer_l3[src_key])
 107                 if outer_l3.get(dst_key):
 108                     dstip, dstmask = self._get_ip_and_mask(outer_l3[dst_key])
 109
 110                 result[traffickey]['outer_l3'].update({
 111                     'count': outer_l3.get('count', 1),
 112                     'dscp': outer_l3.get('dscp'),
 113                     'ttl': outer_l3.get('ttl'),
 114                     'srcseed': outer_l3.get('srcseed', 1),
 115                     'dstseed': outer_l3.get('dstseed', 1),
 116                     'srcip': srcip,
 117                     'dstip': dstip,
 118                     'srcmask': srcmask,
 119                     'dstmask': dstmask,
 120                     'type': key,
 121                     'proto': outer_l3.get('proto'),
 122                     'priority': outer_l3.get('priority')
 123                 })
 124
 125             outer_l4 = value.get('outer_l4')
 126             if outer_l4:
 127                 src_port = src_port_mask = dst_port = dst_port_mask = None
 128                 if outer_l4.get('srcport'):
 129                     src_port, src_port_mask = (
 130                         self._get_fixed_and_mask(outer_l4['srcport']))
 131
 132                 if outer_l4.get('dstport'):
 133                     dst_port, dst_port_mask = (
 134                         self._get_fixed_and_mask(outer_l4['dstport']))
 135
 136                 result[traffickey]['outer_l4'].update({
 137                     'srcport': src_port,
 138                     'dstport': dst_port,
 139                     'srcportmask': src_port_mask,
 140                     'dstportmask': dst_port_mask,
 141                     'count': outer_l4.get('count', 1),
 142                     'seed': outer_l4.get('seed', 1),
 143                 })
 144
 145         return result
 146
 147     def _ixia_traffic_generate(self, traffic, ixia_obj):
 148         ixia_obj.update_frame(traffic, self.config.duration)
 149         ixia_obj.update_ip_packet(traffic)
 150         ixia_obj.update_l4(traffic)
 151         ixia_obj.start_traffic()
 152
 153     def update_traffic_profile(self, traffic_generator):
 154         def port_generator():
 155             for vld_id, intfs in sorted(traffic_generator.networks.items()):
 156                 if not vld_id.startswith((self.UPLINK, self.DOWNLINK)):
 157                     continue
 158                 profile_data = self.params.get(vld_id)
 159                 if not profile_data:
 160                     continue
 161                 self.profile_data = profile_data
 162                 self.full_profile.update({vld_id: self.profile_data})
 163                 for intf in intfs:
 164                     yield traffic_generator.vnfd_helper.port_num(intf)
 165
 166         self.ports = [port for port in port_generator()]
 167
 168     def execute_traffic(self, traffic_generator, ixia_obj=None, mac=None):
 169         mac = {} if mac is None else mac
 170         first_run = self.first_run
 171         if self.first_run:
 172             self.first_run = False
 173             self.full_profile = {}
 174             self.pg_id = 0
 175             self.update_traffic_profile(traffic_generator)
 176             self.max_rate = self.rate
 177             self.min_rate = 0.0
 178         else:
 179             self.rate = round(float(self.max_rate + self.min_rate) / 2.0,
 180                               self.RATE_ROUND)
 181
 182         traffic = self._get_ixia_traffic_profile(self.full_profile, mac)
 183         self._ixia_traffic_generate(traffic, ixia_obj)
 184         return first_run
 185
 186     def get_drop_percentage(self, samples, tol_min, tolerance, precision,
 187                             first_run=False):
 188         completed = False
 189         drop_percent = 100
 190         num_ifaces = len(samples)
 191         duration = self.config.duration
 192         in_packets_sum = sum(
 193             [samples[iface]['in_packets'] for iface in samples])
 194         out_packets_sum = sum(
 195             [samples[iface]['out_packets'] for iface in samples])
 196         rx_throughput = round(float(in_packets_sum) / duration, 3)
 197         tx_throughput = round(float(out_packets_sum) / duration, 3)
 198         packet_drop = abs(out_packets_sum - in_packets_sum)
 199
 200         try:
 201             drop_percent = round(
 202                 (packet_drop / float(out_packets_sum)) * 100,
 203                 self.DROP_PERCENT_ROUND)
 204         except ZeroDivisionError:
 205             LOG.info('No traffic is flowing')
 206
 207         if first_run:
 208             completed = True if drop_percent <= tolerance else False
 209         if (first_run and
 210                 self.rate_unit == tp_base.TrafficProfileConfig.RATE_FPS):
 211             self.rate = float(out_packets_sum) / duration / num_ifaces
 212
 213         if drop_percent > tolerance:
 214             self.max_rate = self.rate
 215         elif drop_percent < tol_min:
 216             self.min_rate = self.rate
 217         else:
 218             completed = True
 219
 220         LOG.debug("tolerance=%s, tolerance_precision=%s drop_percent=%s "
 221                   "completed=%s", tolerance, precision, drop_percent,
 222                   completed)
 223
 224         latency_ns_avg = float(
 225             sum([samples[iface]['Store-Forward_Avg_latency_ns']
 226             for iface in samples])) / num_ifaces
 227         latency_ns_min = float(
 228             sum([samples[iface]['Store-Forward_Min_latency_ns']
 229             for iface in samples])) / num_ifaces
 230         latency_ns_max = float(
 231             sum([samples[iface]['Store-Forward_Max_latency_ns']
 232             for iface in samples])) / num_ifaces
 233
 234         samples['Status'] = self.STATUS_FAIL
 235         if round(drop_percent, precision) <= tolerance:
 236             samples['Status'] = self.STATUS_SUCCESS
 237
 238         samples['TxThroughput'] = tx_throughput
 239         samples['RxThroughput'] = rx_throughput
 240         samples['DropPercentage'] = drop_percent
 241         samples['latency_ns_avg'] = latency_ns_avg
 242         samples['latency_ns_min'] = latency_ns_min
 243         samples['latency_ns_max'] = latency_ns_max
 244
 245         return completed, samples