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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.
""" vPE (Power Edge router) VNF model definitions based on IETS Spec """
from __future__ import absolute_import
from __future__ import print_function
import logging
import re
import posixpath
from yardstick.common import utils
from yardstick.common.process import check_if_process_failed
from yardstick.network_services.helpers.samplevnf_helper import PortPairs
from yardstick.network_services.pipeline import PipelineRules
from yardstick.network_services.vnf_generic.vnf.sample_vnf import SampleVNF, DpdkVnfSetupEnvHelper
from yardstick.benchmark.contexts import base as ctx_base
LOG = logging.getLogger(__name__)
VPE_PIPELINE_COMMAND = "sudo {tool_path} -p {port_mask_hex} -f {cfg_file} -s {script} {hwlb}"
VPE_COLLECT_KPI = """\
Pkts in:\\s(\\d+)\r\n\
\tPkts dropped by AH:\\s(\\d+)\r\n\
\tPkts dropped by other:\\s(\\d+)\
"""
class ConfigCreate(object):
def __init__(self, vnfd_helper, socket):
super(ConfigCreate, self).__init__()
self.sw_q = -1
self.sink_q = -1
self.n_pipeline = 1
self.vnfd_helper = vnfd_helper
self.uplink_ports = self.vnfd_helper.port_pairs.uplink_ports
self.downlink_ports = self.vnfd_helper.port_pairs.downlink_ports
self.pipeline_per_port = 9
self.socket = socket
self._dpdk_port_to_link_id_map = None
def generate_vpe_script(self, interfaces):
rules = PipelineRules(pipeline_id=1)
for uplink_port, downlink_port in zip(self.uplink_ports, self.downlink_ports):
uplink_intf = \
next(intf["virtual-interface"] for intf in interfaces
if intf["name"] == uplink_port)
downlink_intf = \
next(intf["virtual-interface"] for intf in interfaces
if intf["name"] == downlink_port)
dst_port0_ip = uplink_intf["dst_ip"]
dst_port1_ip = downlink_intf["dst_ip"]
dst_port0_mac = uplink_intf["dst_mac"]
dst_port1_mac = downlink_intf["dst_mac"]
rules.add_firewall_script(dst_port0_ip)
rules.next_pipeline()
rules.add_flow_classification_script()
rules.next_pipeline()
rules.add_flow_action()
rules.next_pipeline()
rules.add_flow_action2()
rules.next_pipeline()
rules.add_route_script(dst_port1_ip, dst_port1_mac)
rules.next_pipeline()
rules.add_route_script2(dst_port0_ip, dst_port0_mac)
rules.next_pipeline(num=4)
return rules.get_string()
class VpeApproxSetupEnvHelper(DpdkVnfSetupEnvHelper):
APP_NAME = 'vPE_vnf'
CFG_SCRIPT = "/tmp/vpe_script"
TM_CONFIG = "/tmp/full_tm_profile_10G.cfg"
CORES = ['0', '1', '2', '3', '4', '5']
PIPELINE_COMMAND = VPE_PIPELINE_COMMAND
def _build_vnf_ports(self):
self._port_pairs = PortPairs(self.vnfd_helper.interfaces)
self.uplink_ports = self._port_pairs.uplink_ports
self.downlink_ports = self._port_pairs.downlink_ports
self.all_ports = self._port_pairs.all_ports
def build_config(self):
vnf_cfg = self.scenario_helper.vnf_cfg
task_path = self.scenario_helper.task_path
action_bulk_file = vnf_cfg.get('action_bulk_file', '/tmp/action_bulk_512.txt')
full_tm_profile_file = vnf_cfg.get('full_tm_profile_file', '/tmp/full_tm_profile_10G.cfg')
config_file = vnf_cfg.get('file', '/tmp/vpe_config')
vpe_vars = {
"bin_path": self.ssh_helper.bin_path,
"socket": self.socket,
}
self._build_vnf_ports()
vpe_conf = ConfigCreate(self.vnfd_helper, self.socket)
config_basename = posixpath.basename(config_file)
script_basename = posixpath.basename(self.CFG_SCRIPT)
with utils.open_relative_file(action_bulk_file, task_path) as handle:
action_bulk = handle.read()
with utils.open_relative_file(full_tm_profile_file, task_path) as handle:
full_tm_profile = handle.read()
with utils.open_relative_file(config_file, task_path) as handle:
vpe_config = handle.read()
# vpe_script needs to be autogenerated
vpe_script = vpe_conf.generate_vpe_script(self.vnfd_helper.interfaces)
# upload the 4 config files to the target server
self.ssh_helper.upload_config_file(config_basename, vpe_config.format(**vpe_vars))
self.ssh_helper.upload_config_file(script_basename, vpe_script.format(**vpe_vars))
self.ssh_helper.upload_config_file(posixpath.basename(action_bulk_file),
action_bulk.format(**vpe_vars))
self.ssh_helper.upload_config_file(posixpath.basename(full_tm_profile_file),
full_tm_profile.format(**vpe_vars))
LOG.info("Provision and start the %s", self.APP_NAME)
LOG.info(config_file)
LOG.info(self.CFG_SCRIPT)
self._build_pipeline_kwargs(cfg_file='/tmp/' + config_basename)
return self.PIPELINE_COMMAND.format(**self.pipeline_kwargs)
class VpeApproxVnf(SampleVNF):
""" This class handles vPE VNF model-driver definitions """
APP_NAME = 'vPE_vnf'
APP_WORD = 'vpe'
COLLECT_KPI = VPE_COLLECT_KPI
WAIT_TIME = 20
def __init__(self, name, vnfd, task_id, setup_env_helper_type=None,
resource_helper_type=None):
if setup_env_helper_type is None:
setup_env_helper_type = VpeApproxSetupEnvHelper
super(VpeApproxVnf, self).__init__(
name, vnfd, task_id, setup_env_helper_type, resource_helper_type)
def get_stats(self, *args, **kwargs):
raise NotImplementedError
def collect_kpi(self):
# we can't get KPIs if the VNF is down
check_if_process_failed(self._vnf_process)
physical_node = ctx_base.Context.get_physical_node_from_server(
self.scenario_helper.nodes[self.name])
result = {
"physical_node": physical_node,
'pkt_in_up_stream': 0,
'pkt_drop_up_stream': 0,
'pkt_in_down_stream': 0,
'pkt_drop_down_stream': 0,
'collect_stats': self.resource_helper.collect_kpi(),
}
indexes_in = [1]
indexes_drop = [2, 3]
command = 'p {0} stats port {1} 0'
for index, direction in ((5, 'up'), (9, 'down')):
key_in = "pkt_in_{0}_stream".format(direction)
key_drop = "pkt_drop_{0}_stream".format(direction)
for mode in ('in', 'out'):
stats = self.vnf_execute(command.format(index, mode))
match = re.search(self.COLLECT_KPI, stats, re.MULTILINE)
if not match:
continue
result[key_in] += sum(int(match.group(x)) for x in indexes_in)
result[key_drop] += sum(int(match.group(x)) for x in indexes_drop)
LOG.debug("%s collect KPIs %s", self.APP_NAME, result)
return result
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