yardstick/network_services/vnf_generic/vnf/prox_vnf.py

   1 # Copyright (c) 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 import multiprocessing
  17 import os
  18 import time
  19
  20 from yardstick.network_services.vnf_generic.vnf.base import QueueFileWrapper
  21 from yardstick.network_services.vnf_generic.vnf.prox_helpers import ProxResourceHelper
  22 from yardstick.network_services.vnf_generic.vnf.prox_helpers import ProxDpdkVnfSetupEnvHelper
  23 from yardstick.network_services.vnf_generic.vnf.sample_vnf import SampleVNF
  24
  25 LOG = logging.getLogger(__name__)
  26
  27
  28 class ProxApproxVnf(SampleVNF):
  29
  30     APP_NAME = 'PROX'
  31     APP_WORD = 'PROX'
  32     PROX_MODE = "Workload"
  33     VNF_PROMPT = "PROX started"
  34     LUA_PARAMETER_NAME = "sut"
  35
  36     def __init__(self, name, vnfd, setup_env_helper_type=None, resource_helper_type=None):
  37         if setup_env_helper_type is None:
  38             setup_env_helper_type = ProxDpdkVnfSetupEnvHelper
  39
  40         if resource_helper_type is None:
  41             resource_helper_type = ProxResourceHelper
  42
  43         super(ProxApproxVnf, self).__init__(name, vnfd, setup_env_helper_type,
  44                                             resource_helper_type)
  45         self._result = {}
  46         self._terminated = multiprocessing.Value('i', 0)
  47         self._queue = multiprocessing.Value('i', 0)
  48
  49     def instantiate(self, scenario_cfg, context_cfg):
  50         LOG.info("printing .........prox instantiate ")
  51
  52         self.scenario_helper.scenario_cfg = scenario_cfg
  53
  54         # this won't work we need 1GB hugepages at boot
  55         self.setup_helper.setup_vnf_environment()
  56
  57         # self.connection.run("cat /proc/cpuinfo")
  58
  59         prox_args, prox_path, remote_path = self.resource_helper.get_process_args()
  60
  61         self.q_in = multiprocessing.Queue()
  62         self.q_out = multiprocessing.Queue()
  63         self.queue_wrapper = QueueFileWrapper(self.q_in, self.q_out, "PROX started")
  64         self._vnf_process = multiprocessing.Process(target=self._run_prox,
  65                                                     args=(remote_path, prox_path, prox_args))
  66         self._vnf_process.start()
  67
  68     def _vnf_up_post(self):
  69         self.resource_helper.up_post()
  70
  71     def _run_prox(self, file_wrapper, config_path, prox_path, prox_args):
  72         # This runs in a different process and should not share an SSH connection
  73         # with the rest of the object
  74         self.ssh_helper.drop_connection()
  75
  76         time.sleep(self.WAIT_TIME)
  77
  78         args = " ".join(" ".join([k, v if v else ""]) for k, v in prox_args.items())
  79
  80         cmd_template = "sudo bash -c 'cd {}; {} -o cli {} -f {} '"
  81         prox_cmd = cmd_template.format(os.path.dirname(prox_path), prox_path, args, config_path)
  82
  83         LOG.debug(prox_cmd)
  84         self.ssh_helper.run(prox_cmd, stdin=file_wrapper, stdout=file_wrapper,
  85                             keep_stdin_open=True, pty=False)
  86
  87     def vnf_execute(self, cmd, wait_time=2):
  88         # try to execute with socket commands
  89         self.resource_helper.execute(cmd)
  90
  91     def collect_kpi(self):
  92         if self.resource_helper is None:
  93             result = {
  94                 "packets_in": 0,
  95                 "packets_dropped": 0,
  96                 "packets_fwd": 0,
  97                 "collect_stats": {"core": {}},
  98             }
  99             return result
 100
 101         if len(self.vnfd_helper.interfaces) not in {2, 4}:
 102             raise RuntimeError("Failed ..Invalid no of ports .. "
 103                                "2 or 4 ports only supported at this time")
 104
 105         port_stats = self.resource_helper.execute('port_stats', self.vnfd_helper.interfaces)
 106         rx_total = port_stats[6]
 107         tx_total = port_stats[7]
 108         result = {
 109             "packets_in": tx_total,
 110             "packets_dropped": (tx_total - rx_total),
 111             "packets_fwd": rx_total,
 112             "collect_stats": self.resource_helper.collect_kpi(),
 113         }
 114         return result
 115
 116     def _tear_down(self):
 117         self.setup_helper.rebind_drivers()