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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
from __future__ import print_function
import sys
import logging
import re
from itertools import product
log = logging.getLogger(__name__)
IP_VERSION_4 = 4
IP_VERSION_6 = 6
class TrafficStreamHelper(object):
TEMPLATE = '{0.traffic_item}/{0.stream}:{0.param_id}/{1}'
def __init__(self, traffic_item, stream, param_id):
super(TrafficStreamHelper, self).__init__()
self.traffic_item = traffic_item
self.stream = stream
self.param_id = param_id
def __getattr__(self, item):
return self.TEMPLATE.format(self, item)
class FramesizeHelper(object):
def __init__(self):
super(FramesizeHelper, self).__init__()
self.weighted_pairs = []
self.weighted_range_pairs = []
@property
def weighted_pairs_arg(self):
return '-weightedPairs', self.weighted_pairs
@property
def weighted_range_pairs_arg(self):
return '-weightedRangePairs', self.weighted_range_pairs
def make_args(self, *args):
return self.weighted_pairs_arg + self.weighted_range_pairs_arg + args
def populate_data(self, framesize_data):
for key, value in framesize_data.items():
if value == '0':
continue
replaced = re.sub('[Bb]', '', key)
self.weighted_pairs.extend([
replaced,
value,
])
pairs = [
replaced,
replaced,
value,
]
self.weighted_range_pairs.append(pairs)
class IxNextgen(object):
STATS_NAME_MAP = {
"traffic_item": 'Traffic Item',
"Tx_Frames": 'Tx Frames',
"Rx_Frames": 'Rx Frames',
"Tx_Frame_Rate": 'Tx Frame Rate',
"Rx_Frame_Rate": 'Tx Frame Rate',
"Store-Forward_Avg_latency_ns": 'Store-Forward Avg Latency (ns)',
"Store-Forward_Min_latency_ns": 'Store-Forward Min Latency (ns)',
"Store-Forward_Max_latency_ns": 'Store-Forward Max Latency (ns)',
}
PORT_STATS_NAME_MAP = {
"stat_name": 'Stat Name',
"Frames_Tx": 'Frames Tx.',
"Valid_Frames_Rx": 'Valid Frames Rx.',
"Frames_Tx_Rate": 'Frames Tx. Rate',
"Valid_Frames_Rx_Rate": 'Valid Frames Rx. Rate',
"Tx_Rate_Kbps": 'Tx. Rate (Kbps)',
"Rx_Rate_Kbps": 'Rx. Rate (Kbps)',
"Tx_Rate_Mbps": 'Tx. Rate (Mbps)',
"Rx_Rate_Mbps": 'Rx. Rate (Mbps)',
}
LATENCY_NAME_MAP = {
"Store-Forward_Avg_latency_ns": 'Store-Forward Avg Latency (ns)',
"Store-Forward_Min_latency_ns": 'Store-Forward Min Latency (ns)',
"Store-Forward_Max_latency_ns": 'Store-Forward Max Latency (ns)',
}
RANDOM_MASK_MAP = {
IP_VERSION_4: '0.0.0.255',
IP_VERSION_6: '0:0:0:0:0:0:0:ff',
}
MODE_SEEDS_MAP = {
0: ('private', ['256', '2048']),
}
MODE_SEEDS_DEFAULT = 'public', ['2048', '256']
@staticmethod
def find_view_obj(view_name, views):
edited_view_name = '::ixNet::OBJ-/statistics/view:"{}"'.format(view_name)
return next((view for view in views if edited_view_name == view), '')
@staticmethod
def get_config(tg_cfg):
external_interface = tg_cfg["vdu"][0]["external-interface"]
card_port0 = external_interface[0]["virtual-interface"]["vpci"]
card_port1 = external_interface[1]["virtual-interface"]["vpci"]
card0, port0 = card_port0.split(':')[:2]
card1, port1 = card_port1.split(':')[:2]
cfg = {
'py_lib_path': tg_cfg["mgmt-interface"]["tg-config"]["py_lib_path"],
'machine': tg_cfg["mgmt-interface"]["ip"],
'port': tg_cfg["mgmt-interface"]["tg-config"]["tcl_port"],
'chassis': tg_cfg["mgmt-interface"]["tg-config"]["ixchassis"],
'card1': card0,
'port1': port0,
'card2': card1,
'port2': port1,
'output_dir': tg_cfg["mgmt-interface"]["tg-config"]["dut_result_dir"],
'version': tg_cfg["mgmt-interface"]["tg-config"]["version"],
'bidir': True,
}
return cfg
def __init__(self, ixnet=None):
self.ixnet = ixnet
self._objRefs = dict()
self._cfg = None
self._logger = logging.getLogger(__name__)
self._params = None
self._bidir = None
def iter_over_get_lists(self, x1, x2, y2, offset=0):
for x in self.ixnet.getList(x1, x2):
y_list = self.ixnet.getList(x, y2)
for i, y in enumerate(y_list, offset):
yield x, y, i
def set_random_ip_multi_attribute(self, ipv4, seed, fixed_bits, random_mask, l3_count):
self.ixnet.setMultiAttribute(
ipv4,
'-seed', str(seed),
'-fixedBits', str(fixed_bits),
'-randomMask', str(random_mask),
'-valueType', 'random',
'-countValue', str(l3_count))
def set_random_ip_multi_attributes(self, ip, version, seeds, l3):
try:
random_mask = self.RANDOM_MASK_MAP[version]
except KeyError:
raise ValueError('Unknown version %s' % version)
l3_count = l3['count']
if "srcIp" in ip:
fixed_bits = l3['srcip4']
self.set_random_ip_multi_attribute(ip, seeds[0], fixed_bits, random_mask, l3_count)
if "dstIp" in ip:
fixed_bits = l3['dstip4']
self.set_random_ip_multi_attribute(ip, seeds[1], fixed_bits, random_mask, l3_count)
def add_ip_header(self, params, version):
for it, ep, i in self.iter_over_get_lists('/traffic', 'trafficItem', "configElement"):
mode, seeds = self.MODE_SEEDS_MAP.get(i, self.MODE_SEEDS_DEFAULT)
l3 = params[mode]['outer_l3']
for ip, ip_bits, _ in self.iter_over_get_lists(ep, 'stack', 'field'):
self.set_random_ip_multi_attributes(ip_bits, version, seeds, l3)
self.ixnet.commit()
def _connect(self, tg_cfg):
self._cfg = self.get_config(tg_cfg)
sys.path.append(self._cfg["py_lib_path"])
# Import IxNetwork after getting ixia lib path
try:
import IxNetwork
except ImportError:
raise
self.ixnet = IxNetwork.IxNet()
machine = self._cfg['machine']
port = str(self._cfg['port'])
version = str(self._cfg['version'])
result = self.ixnet.connect(machine, '-port', port, '-version', version)
return result
def clear_ixia_config(self):
self.ixnet.execute('newConfig')
def load_ixia_profile(self, profile):
self.ixnet.execute('loadConfig', self.ixnet.readFrom(profile))
def ix_load_config(self, profile):
self.clear_ixia_config()
self.load_ixia_profile(profile)
def ix_assign_ports(self):
vports = self.ixnet.getList(self.ixnet.getRoot(), 'vport')
ports = [
(self._cfg['chassis'], self._cfg['card1'], self._cfg['port1']),
(self._cfg['chassis'], self._cfg['card2'], self._cfg['port2']),
]
vport_list = self.ixnet.getList("/", "vport")
self.ixnet.execute('assignPorts', ports, [], vport_list, True)
self.ixnet.commit()
for vport in vports:
if self.ixnet.getAttribute(vport, '-state') != 'up':
log.error("Both thr ports are down...")
def ix_update_frame(self, params):
streams = ["configElement"]
for param in params.values():
framesize_data = FramesizeHelper()
traffic_items = self.ixnet.getList('/traffic', 'trafficItem')
param_id = param['id']
for traffic_item, stream in product(traffic_items, streams):
helper = TrafficStreamHelper(traffic_item, stream, param_id)
self.ixnet.setMultiAttribute(helper.transmissionControl,
'-type', '{0}'.format(param['traffic_type']),
'-duration', '{0}'.format(param['duration']))
stream_frame_rate_path = helper.frameRate
self.ixnet.setMultiAttribute(stream_frame_rate_path, '-rate', param['iload'])
if param['outer_l2']['framesPerSecond']:
self.ixnet.setMultiAttribute(stream_frame_rate_path,
'-type', 'framesPerSecond')
framesize_data.populate_data(param['outer_l2']['framesize'])
make_attr_args = framesize_data.make_args('-incrementFrom', '66',
'-randomMin', '66',
'-quadGaussian', [],
'-type', 'weightedPairs',
'-presetDistribution', 'cisco',
'-incrementTo', '1518')
self.ixnet.setMultiAttribute(helper.frameSize, *make_attr_args)
self.ixnet.commit()
def update_ether_multi_attribute(self, ether, mac_addr):
self.ixnet.setMultiAttribute(ether,
'-singleValue', mac_addr,
'-fieldValue', mac_addr,
'-valueType', 'singleValue')
def update_ether_multi_attributes(self, ether, l2):
if "ethernet.header.destinationAddress" in ether:
self.update_ether_multi_attribute(ether, str(l2['dstmac']))
if "ethernet.header.sourceAddress" in ether:
self.update_ether_multi_attribute(ether, str(l2['srcmac']))
def ix_update_ether(self, params):
for ti, ep, index in self.iter_over_get_lists('/traffic', 'trafficItem',
"configElement", 1):
iter1 = (v['outer_l2'] for v in params.values() if str(v['id']) == str(index))
try:
l2 = next(iter1, {})
except KeyError:
continue
for ip, ether, _ in self.iter_over_get_lists(ep, 'stack', 'field'):
self.update_ether_multi_attributes(ether, l2)
self.ixnet.commit()
def ix_update_udp(self, params):
pass
def ix_update_tcp(self, params):
pass
def ix_start_traffic(self):
tis = self.ixnet.getList('/traffic', 'trafficItem')
for ti in tis:
self.ixnet.execute('generate', [ti])
self.ixnet.execute('apply', '/traffic')
self.ixnet.execute('start', '/traffic')
def ix_stop_traffic(self):
tis = self.ixnet.getList('/traffic', 'trafficItem')
for _ in tis:
self.ixnet.execute('stop', '/traffic')
def build_stats_map(self, view_obj, name_map):
return {kl: self.execute_get_column_values(view_obj, kr) for kl, kr in name_map.items()}
def execute_get_column_values(self, view_obj, name):
return self.ixnet.execute('getColumnValues', view_obj, name)
def ix_get_statistics(self):
views = self.ixnet.getList('/statistics', 'view')
stats = {}
view_obj = self.find_view_obj("Traffic Item Statistics", views)
stats = self.build_stats_map(view_obj, self.STATS_NAME_MAP)
view_obj = self.find_view_obj("Port Statistics", views)
ports_stats = self.build_stats_map(view_obj, self.PORT_STATS_NAME_MAP)
view_obj = self.find_view_obj("Flow Statistics", views)
stats["latency"] = self.build_stats_map(view_obj, self.LATENCY_NAME_MAP)
return stats, ports_stats
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