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