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authorMartin Klozik <martinx.klozik@intel.com>2016-08-16 14:59:05 +0100
committerMartin Klozik <martinx.klozik@intel.com>2016-09-01 14:52:49 +0100
commitc9cd093f2f441adc9dd33627255326008e021a67 (patch)
treedcf81dde95fbc91e65f8670841ffdbfb65a6c4a6 /core
parentb2289e1f6abab2d807eb55d9ec868039dc2384e2 (diff)
multi VM: Multi VMs in serial or parallel
Support for deployment scenarios with any number of VMs in both serial and parallel configuration. Detailed content of the patch: * VswitchControllerPXP class for multi VM support * pvvpxx and pvpvxx deployments for xx VMs in serial respective parallel configuration * special GUEST_ options expansion to requested number of VMs; * support of GUEST_ options specific macros #VMINDEX, #MAC(), #IP() and #EVAL() * all GUEST specific options are turned to lists to be VM specific * support for VM with 1 NIC * support for VM with multiple NIC pairs; traffic is routed in serial or parallel between NIC paris based on deployment scenario * support for PVVP and PVPV scenarios using VMs with different numbers of NICs JIRA: VSPERF-361 Change-Id: I05bedbdfa9a81ea0166d9b03d83ae49d6cb8b19b Signed-off-by: Martin Klozik <martinx.klozik@intel.com> Reviewed-by: Maryam Tahhan <maryam.tahhan@intel.com> Reviewed-by: Al Morton <acmorton@att.com> Reviewed-by: Christian Trautman <ctrautma@redhat.com> Reviewed-by: Bill Michalowski <bmichalo@redhat.com> Reviewed-by: Antonio Fischetti <antonio.fischetti@intel.com>
Diffstat (limited to 'core')
-rw-r--r--core/component_factory.py25
-rw-r--r--core/vnf_controller.py55
-rw-r--r--core/vswitch_controller_pvp.py118
-rw-r--r--core/vswitch_controller_pvvp.py126
-rw-r--r--core/vswitch_controller_pxp.py221
5 files changed, 277 insertions, 268 deletions
diff --git a/core/component_factory.py b/core/component_factory.py
index 258b7232..7f453bd2 100644
--- a/core/component_factory.py
+++ b/core/component_factory.py
@@ -18,8 +18,7 @@
from core.traffic_controller_rfc2544 import TrafficControllerRFC2544
from core.vswitch_controller_clean import VswitchControllerClean
from core.vswitch_controller_p2p import VswitchControllerP2P
-from core.vswitch_controller_pvp import VswitchControllerPVP
-from core.vswitch_controller_pvvp import VswitchControllerPVVP
+from core.vswitch_controller_pxp import VswitchControllerPXP
from core.vswitch_controller_op2p import VswitchControllerOP2P
from core.vswitch_controller_ptunp import VswitchControllerPtunP
from core.vnf_controller import VnfController
@@ -57,7 +56,7 @@ def create_vswitch(deployment_scenario, vswitch_class, traffic,
The returned controller is configured with the given vSwitch class.
- Deployment scenarios: 'p2p', 'pvp'
+ Deployment scenarios: e.g. 'p2p', 'pvp', 'pvpv12', etc.
:param deployment_scenario: The deployment scenario name
:param vswitch_class: Reference to vSwitch class to be used.
@@ -66,18 +65,22 @@ def create_vswitch(deployment_scenario, vswitch_class, traffic,
:return: IVSwitchController for the deployment_scenario
"""
deployment_scenario = deployment_scenario.lower()
- if deployment_scenario.find("p2p") == 0:
+ if deployment_scenario.startswith("p2p"):
return VswitchControllerP2P(vswitch_class, traffic)
- elif deployment_scenario.find("pvp") >= 0:
- return VswitchControllerPVP(vswitch_class, traffic)
- elif deployment_scenario.find("pvvp") >= 0:
- return VswitchControllerPVVP(vswitch_class, traffic)
- elif deployment_scenario.find("op2p") >= 0:
+ elif deployment_scenario.startswith("pvp"):
+ return VswitchControllerPXP(deployment_scenario, vswitch_class, traffic)
+ elif deployment_scenario.startswith("pvvp"):
+ return VswitchControllerPXP(deployment_scenario, vswitch_class, traffic)
+ elif deployment_scenario.startswith("pvpv"):
+ return VswitchControllerPXP(deployment_scenario, vswitch_class, traffic)
+ elif deployment_scenario.startswith("op2p"):
return VswitchControllerOP2P(vswitch_class, traffic, tunnel_operation)
- elif deployment_scenario.find("ptunp") >= 0:
+ elif deployment_scenario.startswith("ptunp"):
return VswitchControllerPtunP(vswitch_class, traffic)
- elif deployment_scenario.find("clean") >= 0:
+ elif deployment_scenario.startswith("clean"):
return VswitchControllerClean(vswitch_class, traffic)
+ else:
+ raise RuntimeError("Unknown deployment scenario '{}'.".format(deployment_scenario))
def create_vnf(deployment_scenario, vnf_class):
diff --git a/core/vnf_controller.py b/core/vnf_controller.py
index 8800ccaf..29700661 100644
--- a/core/vnf_controller.py
+++ b/core/vnf_controller.py
@@ -16,6 +16,7 @@
import logging
import pexpect
+from conf import settings
from vnfs.vnf.vnf import IVnf
class VnfController(object):
@@ -25,13 +26,13 @@ class VnfController(object):
Attributes:
_vnf_class: A class object representing the VNF to be used.
- _deployment_scenario: A string describing the scenario to set-up in the
+ _deployment: A string describing the scenario to set-up in the
constructor.
_vnfs: A list of vnfs controlled by the controller.
"""
- def __init__(self, deployment_scenario, vnf_class):
- """Sets up the VNF infrastructure for the PVP deployment scenario.
+ def __init__(self, deployment, vnf_class):
+ """Sets up the VNF infrastructure based on deployment scenario
:param vnf_class: The VNF class to be used.
"""
@@ -41,17 +42,38 @@ class VnfController(object):
# setup controller with requested number of VNFs
self._logger = logging.getLogger(__name__)
self._vnf_class = vnf_class
- self._deployment_scenario = deployment_scenario.upper()
- if self._deployment_scenario == 'P2P':
- self._vnfs = []
- elif self._deployment_scenario == 'PVP':
- self._vnfs = [vnf_class()]
- elif self._deployment_scenario == 'PVVP':
- self._vnfs = [vnf_class(), vnf_class()]
- elif self._deployment_scenario == 'OP2P':
- self._vnfs = []
+ self._deployment = deployment.lower()
+ self._vnfs = []
+ if self._deployment == 'pvp':
+ vm_number = 1
+ elif (self._deployment.startswith('pvvp') or
+ self._deployment.startswith('pvpv')):
+ if len(self._deployment) > 4:
+ vm_number = int(self._deployment[4:])
+ else:
+ vm_number = 2
else:
- self._vnfs = []
+ raise RuntimeError('Deployment {} is not supported by '
+ 'VnfController.'.format(self._deployment))
+
+ if vm_number:
+ self._logger.debug('Check configuration for %s guests.', vm_number)
+ settings.check_vm_settings(vm_number)
+ # enforce that GUEST_NIC_NR is 1 or even number of NICs
+ updated = False
+ nics_nr = settings.getValue('GUEST_NICS_NR')
+ for index in range(len(nics_nr)):
+ if nics_nr[index] > 1 and nics_nr[index] % 2:
+ updated = True
+ nics_nr[index] = int(nics_nr[index] / 2) * 2
+ if updated:
+ settings.setValue('GUEST_NICS_NR', nics_nr)
+ self._logger.warning('Odd number of NICs was detected. Configuration '
+ 'was updated to GUEST_NICS_NR = %s',
+ settings.getValue('GUEST_NICS_NR'))
+
+ self._vnfs = [vnf_class() for _ in range(vm_number)]
+
self._logger.debug('__init__ ' + str(len(self._vnfs)) +
' VNF[s] with ' + ' '.join(map(str, self._vnfs)))
@@ -62,6 +84,13 @@ class VnfController(object):
' VNF[s] with ' + ' '.join(map(str, self._vnfs)))
return self._vnfs
+ def get_vnfs_number(self):
+ """Returns a number of vnfs controlled by this controller.
+ """
+ self._logger.debug('get_vnfs_number ' + str(len(self._vnfs)) +
+ ' VNF[s]')
+ return len(self._vnfs)
+
def start(self):
"""Boots all VNFs set-up by __init__.
diff --git a/core/vswitch_controller_pvp.py b/core/vswitch_controller_pvp.py
deleted file mode 100644
index a4f61961..00000000
--- a/core/vswitch_controller_pvp.py
+++ /dev/null
@@ -1,118 +0,0 @@
-# Copyright 2015 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.
-
-"""VSwitch controller for Physical to VM to Physical deployment
-"""
-
-import logging
-
-from core.vswitch_controller import IVswitchController
-from vswitches.utils import add_ports_to_flow
-from conf import settings
-
-_FLOW_TEMPLATE = {
- 'idle_timeout': '0'
-}
-
-class VswitchControllerPVP(IVswitchController):
- """VSwitch controller for PVP deployment scenario.
-
- Attributes:
- _vswitch_class: The vSwitch class to be used.
- _vswitch: The vSwitch object controlled by this controller
- _deployment_scenario: A string describing the scenario to set-up in the
- constructor.
- """
- def __init__(self, vswitch_class, traffic):
- """Initializes up the prerequisites for the PVP deployment scenario.
-
- :vswitch_class: the vSwitch class to be used.
- """
- self._logger = logging.getLogger(__name__)
- self._vswitch_class = vswitch_class
- self._vswitch = vswitch_class()
- self._deployment_scenario = "PVP"
- self._traffic = traffic.copy()
- self._logger.debug('Creation using ' + str(self._vswitch_class))
-
- def setup(self):
- """ Sets up the switch for pvp
- """
- self._logger.debug('Setup using ' + str(self._vswitch_class))
-
- try:
- self._vswitch.start()
-
- bridge = settings.getValue('VSWITCH_BRIDGE_NAME')
- self._vswitch.add_switch(bridge)
-
- (_, phy1_number) = self._vswitch.add_phy_port(bridge)
- (_, phy2_number) = self._vswitch.add_phy_port(bridge)
- (_, vport1_number) = self._vswitch.add_vport(bridge)
- (_, vport2_number) = self._vswitch.add_vport(bridge)
-
- self._vswitch.del_flow(bridge)
-
- # configure flows according to the TC definition
- flow_template = _FLOW_TEMPLATE.copy()
- if self._traffic['flow_type'] == 'IP':
- flow_template.update({'dl_type':'0x0800', 'nw_src':self._traffic['l3']['srcip'],
- 'nw_dst':self._traffic['l3']['dstip']})
-
- flow1 = add_ports_to_flow(flow_template, phy1_number,
- vport1_number)
- flow2 = add_ports_to_flow(flow_template, vport2_number,
- phy2_number)
- self._vswitch.add_flow(bridge, flow1)
- self._vswitch.add_flow(bridge, flow2)
-
- if self._traffic['bidir'] == 'True':
- flow3 = add_ports_to_flow(flow_template, phy2_number,
- vport2_number)
- flow4 = add_ports_to_flow(flow_template, vport1_number,
- phy1_number)
- self._vswitch.add_flow(bridge, flow3)
- self._vswitch.add_flow(bridge, flow4)
-
- except:
- self._vswitch.stop()
- raise
-
- def stop(self):
- """Tears down the switch created in setup().
- """
- self._logger.debug('Stop using ' + str(self._vswitch_class))
- self._vswitch.stop()
-
- def __enter__(self):
- self.setup()
-
- def __exit__(self, type_, value, traceback):
- self.stop()
-
- def get_vswitch(self):
- """See IVswitchController for description
- """
- return self._vswitch
-
- def get_ports_info(self):
- """See IVswitchController for description
- """
- self._logger.debug('get_ports_info using ' + str(self._vswitch_class))
- return self._vswitch.get_ports(settings.getValue('VSWITCH_BRIDGE_NAME'))
-
- def dump_vswitch_flows(self):
- """See IVswitchController for description
- """
- self._vswitch.dump_flows(settings.getValue('VSWITCH_BRIDGE_NAME'))
diff --git a/core/vswitch_controller_pvvp.py b/core/vswitch_controller_pvvp.py
deleted file mode 100644
index 729aca3f..00000000
--- a/core/vswitch_controller_pvvp.py
+++ /dev/null
@@ -1,126 +0,0 @@
-# Copyright 2015 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.
-
-"""VSwitch controller for Physical to VM to Physical deployment
-"""
-
-import logging
-
-from core.vswitch_controller import IVswitchController
-from vswitches.utils import add_ports_to_flow
-from conf import settings
-
-_FLOW_TEMPLATE = {
- 'idle_timeout': '0'
-}
-
-class VswitchControllerPVVP(IVswitchController):
- """VSwitch controller for PVVP deployment scenario.
-
- Attributes:
- _vswitch_class: The vSwitch class to be used.
- _vswitch: The vSwitch object controlled by this controller
- _deployment_scenario: A string describing the scenario to set-up in the
- constructor.
- """
- def __init__(self, vswitch_class, traffic):
- """Initializes up the prerequisites for the PVVP deployment scenario.
-
- :vswitch_class: the vSwitch class to be used.
- """
- self._logger = logging.getLogger(__name__)
- self._vswitch_class = vswitch_class
- self._vswitch = vswitch_class()
- self._deployment_scenario = "PVVP"
- self._traffic = traffic.copy()
- self._logger.debug('Creation using ' + str(self._vswitch_class))
-
- def setup(self):
- """ Sets up the switch for PVVP
- """
- self._logger.debug('Setup using ' + str(self._vswitch_class))
-
- try:
- self._vswitch.start()
-
- bridge = settings.getValue('VSWITCH_BRIDGE_NAME')
- self._vswitch.add_switch(bridge)
-
- (_, phy1_number) = self._vswitch.add_phy_port(bridge)
- (_, phy2_number) = self._vswitch.add_phy_port(bridge)
- (_, vport1_number) = self._vswitch.add_vport(bridge)
- (_, vport2_number) = self._vswitch.add_vport(bridge)
- (_, vport3_number) = self._vswitch.add_vport(bridge)
- (_, vport4_number) = self._vswitch.add_vport(bridge)
-
- self._vswitch.del_flow(bridge)
-
- # configure flows according to the TC definition
- flow_template = _FLOW_TEMPLATE.copy()
- if self._traffic['flow_type'] == 'IP':
- flow_template.update({'dl_type':'0x0800', 'nw_src':self._traffic['l3']['srcip'],
- 'nw_dst':self._traffic['l3']['dstip']})
-
- flow1 = add_ports_to_flow(flow_template, phy1_number,
- vport1_number)
- flow2 = add_ports_to_flow(flow_template, vport2_number,
- vport3_number)
- flow3 = add_ports_to_flow(flow_template, vport4_number,
- phy2_number)
- self._vswitch.add_flow(bridge, flow1)
- self._vswitch.add_flow(bridge, flow2)
- self._vswitch.add_flow(bridge, flow3)
-
- if self._traffic['bidir'] == 'True':
- flow4 = add_ports_to_flow(flow_template, phy2_number,
- vport4_number)
- flow5 = add_ports_to_flow(flow_template, vport3_number,
- vport2_number)
- flow6 = add_ports_to_flow(flow_template, vport1_number,
- phy1_number)
- self._vswitch.add_flow(bridge, flow4)
- self._vswitch.add_flow(bridge, flow5)
- self._vswitch.add_flow(bridge, flow6)
-
- except:
- self._vswitch.stop()
- raise
-
- def stop(self):
- """Tears down the switch created in setup().
- """
- self._logger.debug('Stop using ' + str(self._vswitch_class))
- self._vswitch.stop()
-
- def __enter__(self):
- self.setup()
-
- def __exit__(self, type_, value, traceback):
- self.stop()
-
- def get_vswitch(self):
- """See IVswitchController for description
- """
- return self._vswitch
-
- def get_ports_info(self):
- """See IVswitchController for description
- """
- self._logger.debug('get_ports_info using ' + str(self._vswitch_class))
- return self._vswitch.get_ports(settings.getValue('VSWITCH_BRIDGE_NAME'))
-
- def dump_vswitch_flows(self):
- """See IVswitchController for description
- """
- self._vswitch.dump_flows(settings.getValue('VSWITCH_BRIDGE_NAME'))
diff --git a/core/vswitch_controller_pxp.py b/core/vswitch_controller_pxp.py
new file mode 100644
index 00000000..6f53b5ac
--- /dev/null
+++ b/core/vswitch_controller_pxp.py
@@ -0,0 +1,221 @@
+# Copyright 2016 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.
+
+"""VSwitch controller for multi VM scenarios with serial or parallel connection
+"""
+
+import logging
+import netaddr
+
+from core.vswitch_controller import IVswitchController
+from vswitches.utils import add_ports_to_flow
+from conf import settings
+
+_FLOW_TEMPLATE = {
+ 'idle_timeout': '0'
+}
+
+_PROTO_TCP = 6
+_PROTO_UDP = 17
+
+class VswitchControllerPXP(IVswitchController):
+ """VSwitch controller for PXP deployment scenario.
+ """
+ def __init__(self, deployment, vswitch_class, traffic):
+ """Initializes up the prerequisites for the PXP deployment scenario.
+
+ :vswitch_class: the vSwitch class to be used.
+ :deployment: the deployment scenario to configure
+ :traffic: dictionary with detailed traffic definition
+ """
+ self._logger = logging.getLogger(__name__)
+ self._vswitch_class = vswitch_class
+ self._vswitch = vswitch_class()
+ self._pxp_topology = 'parallel' if deployment.startswith('pvpv') else 'serial'
+ if deployment == 'pvp':
+ self._pxp_vm_count = 1
+ elif deployment.startswith('pvvp') or deployment.startswith('pvpv'):
+ if len(deployment) > 4:
+ self._pxp_vm_count = int(deployment[4:])
+ else:
+ self._pxp_vm_count = 2
+ else:
+ raise RuntimeError('Unknown number of VMs involved in {} deployment.'.format(deployment))
+
+ self._deployment_scenario = deployment
+
+ self._traffic = traffic.copy()
+ self._bidir = True if self._traffic['bidir'] == 'True' else False
+ self._logger.debug('Creation using ' + str(self._vswitch_class))
+ self._bridge = settings.getValue('VSWITCH_BRIDGE_NAME')
+
+ def setup(self):
+ """ Sets up the switch for PXP
+ """
+ self._logger.debug('Setup using ' + str(self._vswitch_class))
+
+ try:
+ self._vswitch.start()
+
+ self._vswitch.add_switch(self._bridge)
+
+ # create physical ports
+ (_, phy1_number) = self._vswitch.add_phy_port(self._bridge)
+ (_, phy2_number) = self._vswitch.add_phy_port(self._bridge)
+
+ # create VM ports
+ # initialize vport array to requested number of VMs
+ guest_nics = settings.getValue('GUEST_NICS_NR')
+ vm_ports = [[] for _ in range(self._pxp_vm_count)]
+ # create as many VM ports as requested by configuration, but configure
+ # only even number of NICs or just one
+ for vmindex in range(self._pxp_vm_count):
+ # just for case, enforce even number of NICs or 1
+ nics_nr = int(guest_nics[vmindex] / 2) * 2 if guest_nics[vmindex] > 1 else 1
+ self._logger.debug('Create %s vports for %s. VM with index %s',
+ nics_nr, vmindex + 1, vmindex)
+ for _ in range(nics_nr):
+ (_, vport) = self._vswitch.add_vport(self._bridge)
+ vm_ports[vmindex].append(vport)
+
+ self._vswitch.del_flow(self._bridge)
+
+ # configure flows according to the TC definition
+ if self._pxp_topology == 'serial':
+ flow = _FLOW_TEMPLATE.copy()
+ if self._traffic['flow_type'] == 'IP':
+ flow.update({'dl_type':'0x0800',
+ 'nw_src':self._traffic['l3']['srcip'],
+ 'nw_dst':self._traffic['l3']['dstip']})
+
+ # insert flows for phy ports first
+ # from 1st PHY to 1st vport of 1st VM
+ self._add_flow(flow,
+ phy1_number,
+ vm_ports[0][0],
+ self._bidir)
+ # from last vport of last VM to 2nd phy
+ self._add_flow(flow,
+ vm_ports[self._pxp_vm_count-1][-1],
+ phy2_number,
+ self._bidir)
+
+ # add serial connections among VMs and VM NICs pairs if needed
+ # in case of multiple NICs pairs per VM, the pairs are chained
+ # first, before flow to the next VM is created
+ for vmindex in range(self._pxp_vm_count):
+ # connect VMs NICs pairs in case of 4 and more NICs per VM
+ connections = [(vm_ports[vmindex][2*(x+1)-1],
+ vm_ports[vmindex][2*(x+1)])
+ for x in range(int(len(vm_ports[vmindex])/2)-1)]
+ for connection in connections:
+ self._add_flow(flow,
+ connection[0],
+ connection[1],
+ self._bidir)
+ # connect last NICs to the next VM if there is any
+ if self._pxp_vm_count > vmindex + 1:
+ self._add_flow(flow,
+ vm_ports[vmindex][-1],
+ vm_ports[vmindex+1][0],
+ self._bidir)
+ else:
+ proto = _PROTO_TCP if self._traffic['l3']['proto'].lower() == 'tcp' else _PROTO_UDP
+ dst_mac_value = netaddr.EUI(self._traffic['l2']['dstmac']).value
+ dst_ip_value = netaddr.IPAddress(self._traffic['l3']['dstip']).value
+ # initialize stream index; every NIC pair of every VM uses unique stream
+ stream = 0
+ for vmindex in range(self._pxp_vm_count):
+ # iterate through all VMs NIC pairs...
+ if len(vm_ports[vmindex]) > 1:
+ port_pairs = [(vm_ports[vmindex][2*x],
+ vm_ports[vmindex][2*x+1]) for x in range(int(len(vm_ports[vmindex])/2))]
+ else:
+ # ...or connect VM with just one NIC to both phy ports
+ port_pairs = [(vm_ports[vmindex][0], vm_ports[vmindex][0])]
+
+ for port_pair in port_pairs:
+ flow_p = _FLOW_TEMPLATE.copy()
+ flow_v = _FLOW_TEMPLATE.copy()
+
+ # update flow based on trafficgen settings
+ if self._traffic['stream_type'] == 'L2':
+ tmp_mac = netaddr.EUI(dst_mac_value + stream)
+ tmp_mac.dialect = netaddr.mac_unix_expanded
+ flow_p.update({'dl_dst':tmp_mac})
+ elif self._traffic['stream_type'] == 'L3':
+ tmp_ip = netaddr.IPAddress(dst_ip_value + stream)
+ flow_p.update({'dl_type':'0x800', 'nw_dst':tmp_ip})
+ elif self._traffic['stream_type'] == 'L4':
+ flow_p.update({'dl_type':'0x800', 'nw_proto':proto, 'tp_dst':stream})
+ else:
+ raise RuntimeError('Unknown stream_type {}'.format(self._traffic['stream_type']))
+
+ # insert flow to dispatch traffic from physical ports
+ # to VMs based on stream type; all traffic from VMs is
+ # sent to physical ports to avoid issues with MAC swapping
+ # and upper layer mods performed inside guests
+ self._add_flow(flow_p, phy1_number, port_pair[0])
+ self._add_flow(flow_v, port_pair[1], phy2_number)
+ if self._bidir:
+ self._add_flow(flow_p, phy2_number, port_pair[1])
+ self._add_flow(flow_v, port_pair[0], phy1_number)
+
+ # every NIC pair needs its own unique traffic stream
+ stream += 1
+
+ except:
+ self._vswitch.stop()
+ raise
+
+ def stop(self):
+ """Tears down the switch created in setup().
+ """
+ self._logger.debug('Stop using ' + str(self._vswitch_class))
+ self._vswitch.stop()
+
+ def _add_flow(self, flow, port1, port2, reverse_flow=False):
+ """ Helper method to insert flow into the vSwitch
+ """
+ self._vswitch.add_flow(self._bridge,
+ add_ports_to_flow(flow,
+ port1,
+ port2))
+ if reverse_flow:
+ self._vswitch.add_flow(self._bridge,
+ add_ports_to_flow(flow,
+ port2,
+ port1))
+
+ def __enter__(self):
+ self.setup()
+
+ def __exit__(self, type_, value, traceback):
+ self.stop()
+
+ def get_vswitch(self):
+ """See IVswitchController for description
+ """
+ return self._vswitch
+
+ def get_ports_info(self):
+ """See IVswitchController for description
+ """
+ self._logger.debug('get_ports_info using ' + str(self._vswitch_class))
+ return self._vswitch.get_ports(self._bridge)
+
+ def dump_vswitch_flows(self):
+ """See IVswitchController for description
+ """
+ self._vswitch.dump_flows(self._bridge)