1 # Copyright 2015-2016 Intel Corporation.
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
7 # http://www.apache.org/licenses/LICENSE-2.0
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.
15 """VSPERF Vanilla OVS implementation
19 from conf import settings
20 from vswitches.ovs import IVSwitchOvs
21 from src.ovs import VSwitchd, DPCtl
22 from tools.module_manager import ModuleManager
23 from tools import tasks
25 class OvsVanilla(IVSwitchOvs):
28 This is wrapper for functionality implemented in src.ovs.
30 The method docstrings document only considerations specific to this
31 implementation. For generic information of the nature of the methods,
32 see the interface definition.
35 _ports = settings.getValue('VSWITCH_VANILLA_PHY_PORT_NAMES')
40 super(OvsVanilla, self).__init__()
41 self._logger = logging.getLogger(__name__)
42 self._vswitchd_args = ["unix:%s" % VSwitchd.get_db_sock_path()]
43 self._vswitchd_args += settings.getValue('VSWITCHD_VANILLA_ARGS')
44 self._vswitchd = VSwitchd(vswitchd_args=self._vswitchd_args,
45 expected_cmd="db.sock: connected")
47 self._module_manager = ModuleManager()
50 """See IVswitch for general description
52 Activates kernel modules, ovsdb and vswitchd.
54 self._module_manager.insert_modules(
55 settings.getValue('VSWITCH_VANILLA_KERNEL_MODULES'))
56 super(OvsVanilla, self).start()
59 """See IVswitch for general description
61 Kills ovsdb and vswitchd and removes kernel modules.
63 # remove all tap interfaces
64 for i in range(self._vport_id):
66 tasks.run_task(['sudo', 'ip', 'tuntap', 'del',
68 self._logger, 'Deleting ' + tapx, False)
71 super(OvsVanilla, self).stop()
75 self._module_manager.remove_modules()
78 def add_phy_port(self, switch_name):
80 Method adds port based on configured VSWITCH_VANILLA_PHY_PORT_NAMES
81 stored in config file.
83 See IVswitch for general description
85 if self._current_id == len(self._ports):
86 self._logger.error("Can't add port! There are only " +
87 len(self._ports) + " ports " +
91 if not self._ports[self._current_id]:
92 self._logger.error("VSWITCH_VANILLA_PHY_PORT_NAMES not set")
93 raise ValueError("Invalid VSWITCH_VANILLA_PHY_PORT_NAMES")
95 bridge = self._bridges[switch_name]
96 port_name = self._ports[self._current_id]
100 tasks.run_task(['sudo', 'ifconfig', port_name, '0'],
101 self._logger, 'Remove IP', False)
103 of_port = bridge.add_port(port_name, params)
104 self._current_id += 1
105 return (port_name, of_port)
107 def add_vport(self, switch_name):
109 Method adds virtual port into OVS vanilla
111 See IVswitch for general description
113 # Create tap devices for the VM
114 tap_name = 'tap' + str(self._vport_id)
117 tasks.run_task(['sudo', 'ip', 'tuntap', 'del',
118 tap_name, 'mode', 'tap'],
119 self._logger, 'Creating tap device...', False)
121 tasks.run_task(['sudo', 'ip', 'tuntap', 'add',
122 tap_name, 'mode', 'tap'],
123 self._logger, 'Creating tap device...', False)
125 tasks.run_task(['sudo', 'ifconfig', tap_name, '0'],
126 self._logger, 'Bring up ' + tap_name, False)
128 bridge = self._bridges[switch_name]
129 of_port = bridge.add_port(tap_name, [])
130 return (tap_name, of_port)