-# Copyright 2015-2017 Intel Corporation.
+# Copyright 2015-2018 Intel Corporation., Tieto
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
"""VSwitch controller for Physical to Physical deployment
"""
-
-import logging
-import netaddr
-
from core.vswitch_controller import IVswitchController
from conf import settings
-_FLOW_TEMPLATE = {
- 'idle_timeout': '0'
-}
-
-_PROTO_TCP = 6
-_PROTO_UDP = 17
-
class VswitchControllerP2P(IVswitchController):
"""VSwitch controller for P2P deployment scenario.
_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 P2P deployment scenario.
-
- :vswitch_class: the vSwitch class to be used.
+ def __init__(self, deployment, vswitch_class, traffic):
+ """See IVswitchController for general description
"""
- self._logger = logging.getLogger(__name__)
- self._vswitch_class = vswitch_class
- self._vswitch = vswitch_class()
- self._deployment_scenario = "P2P"
- self._logger.debug('Creation using %s', str(self._vswitch_class))
- self._traffic = traffic.copy()
+ super().__init__(deployment, vswitch_class, traffic)
+ self._bridge = settings.getValue('VSWITCH_BRIDGE_NAME')
def setup(self):
"""Sets up the switch for p2p.
try:
self._vswitch.start()
- bridge = settings.getValue('VSWITCH_BRIDGE_NAME')
- self._vswitch.add_switch(bridge)
-
- (_, _) = self._vswitch.add_phy_port(bridge)
- (_, _) = self._vswitch.add_phy_port(bridge)
-
- self._vswitch.del_flow(bridge)
-
- # table#0 - flows designed to force 5 & 13 tuple matches go here
- flow = {'table':'0', 'priority':'1', 'actions': ['goto_table:1']}
- self._vswitch.add_flow(bridge, flow)
-
- # table#1 - flows to route packets between ports goes here. The
- # chosen port is communicated to subsequent tables by setting the
- # metadata value to the egress port number
+ self._vswitch.add_switch(self._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']})
+ (port1, _) = self._vswitch.add_phy_port(self._bridge)
+ (port2, _) = self._vswitch.add_phy_port(self._bridge)
- flow = flow_template.copy()
- flow.update({'table':'1', 'priority':'1', 'in_port':'1',
- 'actions': ['write_actions(output:2)', 'write_metadata:0x2',
- 'goto_table:2']})
- self.process_flow_template(bridge, flow)
- flow = flow_template.copy()
- flow.update({'table':'1', 'priority':'1', 'in_port':'2',
- 'actions': ['write_actions(output:1)', 'write_metadata:0x1',
- 'goto_table:2']})
- self.process_flow_template(bridge, flow)
+ self._vswitch.add_connection(self._bridge, port1, port2, self._traffic)
+ self._vswitch.add_connection(self._bridge, port2, port1, self._traffic)
- # Frame modification table. Frame modification flow rules are
- # isolated in this table so that they can be turned on or off
- # without affecting the routing or tuple-matching flow rules.
- flow = {'table':'2', 'priority':'1', 'actions': ['goto_table:3']}
- self._vswitch.add_flow(bridge, flow)
-
- # Egress table
- # (TODO) Billy O'Mahony - the drop action here actually required in
- # order to egress the packet. This is the subject of a thread on
- # ovs-discuss 2015-06-30.
- flow = {'table':'3', 'priority':'1', 'actions': ['drop']}
- self._vswitch.add_flow(bridge, flow)
except:
self._vswitch.stop()
raise
self._logger.debug('Stop using %s', 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 %s', str(self._vswitch_class))
- return self._vswitch.get_ports(settings.getValue('VSWITCH_BRIDGE_NAME'))
+ return self._vswitch.get_ports(self._bridge)
- def dump_vswitch_flows(self):
+ def dump_vswitch_connections(self):
"""See IVswitchController for description
"""
- self._vswitch.dump_flows(settings.getValue('VSWITCH_BRIDGE_NAME'))
-
- def process_flow_template(self, bridge, flow_template):
- """Method adds flows into the vswitch based on given flow template
- and configuration of multistream feature.
- """
- if ('pre_installed_flows' in self._traffic and
- self._traffic['pre_installed_flows'].lower() == 'yes' and
- 'multistream' in self._traffic and self._traffic['multistream'] > 0 and
- 'stream_type' in self._traffic):
- # multistream feature is enabled and flows should be inserted into OVS
- # so generate flows based on template and multistream configuration
- if self._traffic['stream_type'] == 'L2':
- # iterate through destimation MAC address
- dst_mac_value = netaddr.EUI(self._traffic['l2']['dstmac']).value
- for i in range(self._traffic['multistream']):
- tmp_mac = netaddr.EUI(dst_mac_value + i)
- tmp_mac.dialect = netaddr.mac_unix_expanded
- flow_template.update({'dl_dst':tmp_mac})
- # optimize flow insertion by usage of cache
- self._vswitch.add_flow(bridge, flow_template, cache='on')
- elif self._traffic['stream_type'] == 'L3':
- # iterate through destimation IP address
- dst_ip_value = netaddr.IPAddress(self._traffic['l3']['dstip']).value
- for i in range(self._traffic['multistream']):
- tmp_ip = netaddr.IPAddress(dst_ip_value + i)
- flow_template.update({'dl_type':'0x0800', 'nw_dst':tmp_ip})
- # optimize flow insertion by usage of cache
- self._vswitch.add_flow(bridge, flow_template, cache='on')
- elif self._traffic['stream_type'] == 'L4':
- # read transport protocol from configuration and iterate through its destination port
- proto = _PROTO_TCP if self._traffic['l3']['proto'].lower() == 'tcp' else _PROTO_UDP
- for i in range(self._traffic['multistream']):
- flow_template.update({'dl_type':'0x0800', 'nw_proto':proto, 'tp_dst':i})
- # optimize flow insertion by usage of cache
- self._vswitch.add_flow(bridge, flow_template, cache='on')
- else:
- self._logger.error('Stream type is set to uknown value %s', self._traffic['stream_type'])
- # insert cached flows into the OVS
- self._vswitch.add_flow(bridge, [], cache='flush')
- else:
- self._vswitch.add_flow(bridge, flow_template)
+ self._vswitch.dump_connections(self._bridge)
Code Review / vswitchperf.git / blobdiff