"""TestCase base class
"""
+from collections import OrderedDict
+import copy
import csv
+import logging
+import math
import os
+import re
import time
-import logging
import subprocess
-import copy
-from collections import OrderedDict
+from conf import settings as S
+from conf import get_test_param
import core.component_factory as component_factory
from core.loader import Loader
from core.results.results_constants import ResultsConstants
from tools import hugepages
from tools import functions
from tools.pkt_gen.trafficgen.trafficgenhelper import TRAFFIC_DEFAULTS
-from conf import settings as S
-from conf import get_test_param
+
class TestCase(object):
"""TestCase base class
self._loadgen = None
self._output_file = None
self._tc_results = None
- self.guest_loopback = []
self._settings_original = {}
self._settings_paths_modified = False
self._testcast_run_time = None
+ # store all GUEST_ specific settings to keep original values before their expansion
+ for key in S.__dict__:
+ if key.startswith('GUEST_'):
+ self._settings_original[key] = S.getValue(key)
+
self._update_settings('VSWITCH', cfg.get('vSwitch', S.getValue('VSWITCH')))
self._update_settings('VNF', cfg.get('VNF', S.getValue('VNF')))
self._update_settings('TRAFFICGEN', cfg.get('Trafficgen', S.getValue('TRAFFICGEN')))
self._update_settings('TEST_PARAMS', cfg.get('Parameters', S.getValue('TEST_PARAMS')))
# update global settings
+ functions.settings_update_paths()
guest_loopback = get_test_param('guest_loopback', None)
if guest_loopback:
- self._update_settings('GUEST_LOOPBACK', [guest_loopback for dummy in S.getValue('GUEST_LOOPBACK')])
-
- if 'VSWITCH' in self._settings_original or 'VNF' in self._settings_original:
- self._settings_original.update({
- 'RTE_SDK' : S.getValue('RTE_SDK'),
- 'OVS_DIR' : S.getValue('OVS_DIR'),
- })
- functions.settings_update_paths()
+ # we can put just one item, it'll be expanded automatically for all VMs
+ self._update_settings('GUEST_LOOPBACK', [guest_loopback])
# set test parameters; CLI options take precedence to testcase settings
self._logger = logging.getLogger(__name__)
self._tunnel_type = get_test_param('tunnel_type',
self._tunnel_type)
- # identify guest loopback method, so it can be added into reports
- if self.deployment == 'pvp':
- self.guest_loopback.append(S.getValue('GUEST_LOOPBACK')[0])
- else:
- self.guest_loopback = S.getValue('GUEST_LOOPBACK').copy()
-
# read configuration of streams; CLI parameter takes precedence to
# testcase definition
multistream = cfg.get('MultiStream', TRAFFIC_DEFAULTS['multistream'])
# Packet Forwarding mode
self._vswitch_none = 'none' == S.getValue('VSWITCH').strip().lower()
- # OVS Vanilla requires guest VM MAC address and IPs to work
- if 'linux_bridge' in self.guest_loopback:
- self._traffic['l2'].update({'srcmac': S.getValue('VANILLA_TGEN_PORT1_MAC'),
- 'dstmac': S.getValue('VANILLA_TGEN_PORT2_MAC')})
- self._traffic['l3'].update({'srcip': S.getValue('VANILLA_TGEN_PORT1_IP'),
- 'dstip': S.getValue('VANILLA_TGEN_PORT2_IP')})
-
# trafficgen configuration required for tests of tunneling protocols
if self.deployment == "op2p":
self._traffic['l2'].update({'srcmac':
# mount hugepages if needed
self._mount_hugepages()
- # copy sources of l2 forwarding tools into VM shared dir if needed
- self._copy_fwd_tools_for_all_guests()
-
self._logger.debug("Controllers:")
loader = Loader()
self._traffic_ctl = component_factory.create_traffic(
self.deployment,
loader.get_vnf_class())
+ # verify enough hugepages are free to run the testcase
+ if not self._check_for_enough_hugepages():
+ raise RuntimeError('Not enough hugepages free to run test.')
+
+ # perform guest related handling
+ if self._vnf_ctl.get_vnfs_number():
+ # copy sources of l2 forwarding tools into VM shared dir if needed
+ self._copy_fwd_tools_for_all_guests(self._vnf_ctl.get_vnfs_number())
+
+ # in case of multi VM in parallel, set the number of streams to the number of VMs
+ if self.deployment.startswith('pvpv'):
+ # for each VM NIC pair we need an unique stream
+ streams = 0
+ for vm_nic in S.getValue('GUEST_NICS_NR')[:self._vnf_ctl.get_vnfs_number()]:
+ streams += int(vm_nic / 2) if vm_nic > 1 else 1
+ self._logger.debug("VMs with parallel connection were detected. "
+ "Thus Number of streams was set to %s", streams)
+ self._traffic.update({'multistream': streams})
+
+ # OVS Vanilla requires guest VM MAC address and IPs to work
+ if 'linux_bridge' in S.getValue('GUEST_LOOPBACK'):
+ self._traffic['l2'].update({'srcmac': S.getValue('VANILLA_TGEN_PORT1_MAC'),
+ 'dstmac': S.getValue('VANILLA_TGEN_PORT2_MAC')})
+ self._traffic['l3'].update({'srcip': S.getValue('VANILLA_TGEN_PORT1_IP'),
+ 'dstip': S.getValue('VANILLA_TGEN_PORT2_IP')})
+
if self._vswitch_none:
self._vswitch_ctl = component_factory.create_pktfwd(
self.deployment,
# restore original settings
S.load_from_dict(self._settings_original)
+ # cleanup any namespaces created
+ if os.path.isdir('/tmp/namespaces'):
+ import tools.namespace
+ namespace_list = os.listdir('/tmp/namespaces')
+ if len(namespace_list):
+ self._logger.info('Cleaning up namespaces')
+ for name in namespace_list:
+ tools.namespace.delete_namespace(name)
+ os.rmdir('/tmp/namespaces')
+ # cleanup any veth ports created
+ if os.path.isdir('/tmp/veth'):
+ import tools.veth
+ veth_list = os.listdir('/tmp/veth')
+ if len(veth_list):
+ self._logger.info('Cleaning up veth ports')
+ for eth in veth_list:
+ port1, port2 = eth.split('-')
+ tools.veth.del_veth_port(port1, port2)
+ os.rmdir('/tmp/veth')
+
def run_report(self):
""" Report test results
"""
self._traffic_ctl.print_results()
self._tc_results = self._append_results(self._traffic_ctl.get_results())
- TestCase._write_result_to_file(self._tc_results, self._output_file)
+ TestCase.write_result_to_file(self._tc_results, self._output_file)
def run(self):
"""Run the test
item[ResultsConstants.SCAL_STREAM_COUNT] = self._traffic['multistream']
item[ResultsConstants.SCAL_STREAM_TYPE] = self._traffic['stream_type']
item[ResultsConstants.SCAL_PRE_INSTALLED_FLOWS] = self._traffic['pre_installed_flows']
- if self.deployment in ['pvp', 'pvvp'] and len(self.guest_loopback):
- item[ResultsConstants.GUEST_LOOPBACK] = ' '.join(self.guest_loopback)
+ if self._vnf_ctl.get_vnfs_number():
+ item[ResultsConstants.GUEST_LOOPBACK] = ' '.join(S.getValue('GUEST_LOOPBACK'))
if self._tunnel_type:
item[ResultsConstants.TUNNEL_TYPE] = self._tunnel_type
return results
- def _copy_fwd_tools_for_all_guests(self):
+ def _copy_fwd_tools_for_all_guests(self, vm_count):
"""Copy dpdk and l2fwd code to GUEST_SHARE_DIR[s] based on selected deployment.
"""
- # data are copied only for pvp and pvvp, so let's count number of 'v'
- counter = 1
- while counter <= self.deployment.count('v'):
- self._copy_fwd_tools_for_guest(counter)
- counter += 1
+ # consider only VNFs involved in the test
+ for guest_dir in set(S.getValue('GUEST_SHARE_DIR')[:vm_count]):
+ self._copy_fwd_tools_for_guest(guest_dir)
- def _copy_fwd_tools_for_guest(self, index):
+ def _copy_fwd_tools_for_guest(self, guest_dir):
"""Copy dpdk and l2fwd code to GUEST_SHARE_DIR of VM
:param index: Index of VM starting from 1 (i.e. 1st VM has index 1)
"""
- guest_dir = S.getValue('GUEST_SHARE_DIR')[index-1]
-
# remove shared dir if it exists to avoid issues with file consistency
if os.path.exists(guest_dir):
tasks.run_task(['rm', '-f', '-r', guest_dir], self._logger,
os.makedirs(guest_dir)
# copy sources into shared dir only if neccessary
- if 'testpmd' in self.guest_loopback or 'l2fwd' in self.guest_loopback:
+ guest_loopback = set(S.getValue('GUEST_LOOPBACK'))
+ if 'testpmd' in guest_loopback:
try:
- tasks.run_task(['rsync', '-a', '-r', '-l', r'--exclude="\.git"',
- os.path.join(S.getValue('RTE_SDK_USER'), ''),
+ # exclude whole .git/ subdirectory and all o-files;
+ # It is assumed, that the same RTE_TARGET is used in both host
+ # and VMs; This simplification significantly speeds up testpmd
+ # build. If we will need a different RTE_TARGET in VM,
+ # then we have to build whole DPDK from the scratch in VM.
+ # In that case we can copy just DPDK sources (e.g. by excluding
+ # all items obtained by git status -unormal --porcelain).
+ # NOTE: Excluding RTE_TARGET directory won't help on systems,
+ # where DPDK is built for multiple targets (e.g. for gcc & icc)
+ exclude = []
+ exclude.append(r'--exclude=.git/')
+ exclude.append(r'--exclude=*.o')
+ tasks.run_task(['rsync', '-a', '-r', '-l'] + exclude +
+ [os.path.join(S.getValue('TOOLS')['dpdk_src'], ''),
os.path.join(guest_dir, 'DPDK')],
self._logger,
'Copying DPDK to shared directory...',
True)
+ except subprocess.CalledProcessError:
+ self._logger.error('Unable to copy DPDK to shared directory')
+ raise
+ if 'l2fwd' in guest_loopback:
+ try:
tasks.run_task(['rsync', '-a', '-r', '-l',
os.path.join(S.getValue('ROOT_DIR'), 'src/l2fwd/'),
os.path.join(guest_dir, 'l2fwd')],
'Copying l2fwd to shared directory...',
True)
except subprocess.CalledProcessError:
- self._logger.error('Unable to copy DPDK and l2fwd to shared directory')
-
+ self._logger.error('Unable to copy l2fwd to shared directory')
+ raise
def _mount_hugepages(self):
"""Mount hugepages if usage of DPDK or Qemu is detected
hugepages.umount_hugepages()
self._hugepages_mounted = False
+ def _check_for_enough_hugepages(self):
+ """Check to make sure enough hugepages are free to satisfy the
+ test environment.
+ """
+ hugepages_needed = 0
+ hugepage_size = hugepages.get_hugepage_size()
+ # get hugepage amounts per guest involved in the test
+ for guest in range(self._vnf_ctl.get_vnfs_number()):
+ hugepages_needed += math.ceil((int(S.getValue(
+ 'GUEST_MEMORY')[guest]) * 1000) / hugepage_size)
+
+ # get hugepage amounts for each socket on dpdk
+ sock0_mem, sock1_mem = 0, 0
+ if S.getValue('VSWITCH').lower().count('dpdk'):
+ # the import below needs to remain here and not put into the module
+ # imports because of an exception due to settings not yet loaded
+ from vswitches import ovs_dpdk_vhost
+ if ovs_dpdk_vhost.OvsDpdkVhost.old_dpdk_config():
+ match = re.search(
+ r'-socket-mem\s+(\d+),(\d+)',
+ ''.join(S.getValue('VSWITCHD_DPDK_ARGS')))
+ if match:
+ sock0_mem, sock1_mem = (int(match.group(1)) * 1024 / hugepage_size,
+ int(match.group(2)) * 1024 / hugepage_size)
+ else:
+ logging.info(
+ 'Could not parse socket memory config in dpdk params.')
+ else:
+ sock0_mem, sock1_mem = (
+ S.getValue(
+ 'VSWITCHD_DPDK_CONFIG')['dpdk-socket-mem'].split(','))
+ sock0_mem, sock1_mem = (int(sock0_mem) * 1024 / hugepage_size,
+ int(sock1_mem) * 1024 / hugepage_size)
+
+ # If hugepages needed, verify the amounts are free
+ if any([hugepages_needed, sock0_mem, sock1_mem]):
+ free_hugepages = hugepages.get_free_hugepages()
+ if hugepages_needed:
+ logging.info('Need %s hugepages free for guests',
+ hugepages_needed)
+ result1 = free_hugepages >= hugepages_needed
+ free_hugepages -= hugepages_needed
+ else:
+ result1 = True
+
+ if sock0_mem:
+ logging.info('Need %s hugepages free for dpdk socket 0',
+ sock0_mem)
+ result2 = hugepages.get_free_hugepages('0') >= sock0_mem
+ free_hugepages -= sock0_mem
+ else:
+ result2 = True
+
+ if sock1_mem:
+ logging.info('Need %s hugepages free for dpdk socket 1',
+ sock1_mem)
+ result3 = hugepages.get_free_hugepages('1') >= sock1_mem
+ free_hugepages -= sock1_mem
+ else:
+ result3 = True
+
+ logging.info('Need a total of {} total hugepages'.format(
+ hugepages_needed + sock1_mem + sock0_mem))
+
+ # The only drawback here is sometimes dpdk doesn't release
+ # its hugepages on a test failure. This could cause a test
+ # to fail when dpdk would be OK to start because it will just
+ # use the previously allocated hugepages.
+ result4 = True if free_hugepages >= 0 else False
+
+ return all([result1, result2, result3, result4])
+ else:
+ return True
+
@staticmethod
- def _write_result_to_file(results, output):
+ def write_result_to_file(results, output):
"""Write list of dictionaries to a CSV file.
Each element on list will create separate row in output file.
Code Review / vswitchperf.git / blobdiff