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# Copyright (c) 2016-2017 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import absolute_import
import logging
from yardstick.network_services.traffic_profile.trex_traffic_profile import \
TrexProfile
LOG = logging.getLogger(__name__)
class IXIARFC2544Profile(TrexProfile):
UPLINK = 'uplink'
DOWNLINK = 'downlink'
def _get_ixia_traffic_profile(self, profile_data, mac=None):
if mac is None:
mac = {}
result = {}
for traffickey, values in profile_data.items():
if not traffickey.startswith((self.UPLINK, self.DOWNLINK)):
continue
try:
# values should be single-item dict, so just grab the first item
try:
key, value = next(iter(values.items()))
except StopIteration:
result[traffickey] = {}
continue
port_id = value.get('id', 1)
port_index = port_id - 1
try:
ip = value['outer_l3v6']
except KeyError:
ip = value['outer_l3v4']
src_key, dst_key = 'srcip4', 'dstip4'
else:
src_key, dst_key = 'srcip6', 'dstip6'
result[traffickey] = {
'bidir': False,
'iload': '100',
'id': port_id,
'outer_l2': {
'framesize': value['outer_l2']['framesize'],
'framesPerSecond': True,
'srcmac': mac['src_mac_{}'.format(port_index)],
'dstmac': mac['dst_mac_{}'.format(port_index)],
},
'outer_l3': {
'count': ip['count'],
'dscp': ip['dscp'],
'ttl': ip['ttl'],
src_key: ip[src_key].split("-")[0],
dst_key: ip[dst_key].split("-")[0],
'type': key,
'proto': ip['proto'],
},
'outer_l4': value['outer_l4'],
}
except KeyError:
continue
return result
def _ixia_traffic_generate(self, traffic, ixia_obj):
for key, value in traffic.items():
if key.startswith((self.UPLINK, self.DOWNLINK)):
value["iload"] = str(self.rate)
ixia_obj.ix_update_frame(traffic)
ixia_obj.ix_update_ether(traffic)
ixia_obj.add_ip_header(traffic, 4)
ixia_obj.ix_start_traffic()
self.tmp_drop = 0
self.tmp_throughput = 0
def update_traffic_profile(self, traffic_generator):
def port_generator():
for vld_id, intfs in sorted(traffic_generator.networks.items()):
if not vld_id.startswith((self.UPLINK, self.DOWNLINK)):
continue
profile_data = self.params.get(vld_id)
if not profile_data:
continue
self.profile_data = profile_data
self.get_streams(self.profile_data)
self.full_profile.update({vld_id: self.profile_data})
for intf in intfs:
yield traffic_generator.vnfd_helper.port_num(intf)
self.ports = [port for port in port_generator()]
def execute_traffic(self, traffic_generator, ixia_obj, mac=None):
if mac is None:
mac = {}
if self.first_run:
self.full_profile = {}
self.pg_id = 0
self.update_traffic_profile(traffic_generator)
traffic = \
self._get_ixia_traffic_profile(self.full_profile, mac)
self.max_rate = self.rate
self.min_rate = 0
self.get_multiplier()
self._ixia_traffic_generate(traffic, ixia_obj)
def get_multiplier(self):
self.rate = round((self.max_rate + self.min_rate) / 2.0, 2)
multiplier = round(self.rate / self.pps, 2)
return str(multiplier)
def start_ixia_latency(self, traffic_generator, ixia_obj, mac=None):
if mac is None:
mac = {}
self.update_traffic_profile(traffic_generator)
traffic = \
self._get_ixia_traffic_profile(self.full_profile, mac)
self._ixia_traffic_generate(traffic, ixia_obj)
def get_drop_percentage(self, samples, tol_min, tolerance, ixia_obj,
mac=None):
if mac is None:
mac = {}
status = 'Running'
drop_percent = 100
in_packets = sum([samples[iface]['in_packets'] for iface in samples])
out_packets = sum([samples[iface]['out_packets'] for iface in samples])
rx_throughput = \
sum([samples[iface]['RxThroughput'] for iface in samples])
tx_throughput = \
sum([samples[iface]['TxThroughput'] for iface in samples])
packet_drop = abs(out_packets - in_packets)
try:
drop_percent = round((packet_drop / float(out_packets)) * 100, 2)
except ZeroDivisionError:
LOG.info('No traffic is flowing')
samples['TxThroughput'] = round(tx_throughput / 1.0, 2)
samples['RxThroughput'] = round(rx_throughput / 1.0, 2)
samples['CurrentDropPercentage'] = drop_percent
samples['Throughput'] = self.tmp_throughput
samples['DropPercentage'] = self.tmp_drop
if drop_percent > tolerance and self.tmp_throughput == 0:
samples['Throughput'] = round(rx_throughput / 1.0, 2)
samples['DropPercentage'] = drop_percent
if self.first_run:
max_supported_rate = out_packets / 30.0
self.rate = max_supported_rate
self.first_run = False
if drop_percent <= tolerance:
status = 'Completed'
if drop_percent > tolerance:
self.max_rate = self.rate
elif drop_percent < tol_min:
self.min_rate = self.rate
if drop_percent >= self.tmp_drop:
self.tmp_drop = drop_percent
self.tmp_throughput = round((rx_throughput / 1.0), 2)
samples['Throughput'] = round(rx_throughput / 1.0, 2)
samples['DropPercentage'] = drop_percent
else:
samples['Throughput'] = round(rx_throughput / 1.0, 2)
samples['DropPercentage'] = drop_percent
return status, samples
self.get_multiplier()
traffic = self._get_ixia_traffic_profile(self.full_profile, mac)
self._ixia_traffic_generate(traffic, ixia_obj)
return status, samples
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