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.
39 super(OvsVanilla, self).__init__()
40 self._ports = list(nic['device'] for nic in settings.getValue('NICS'))
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 detected device names.
82 See IVswitch for general description
84 if self._current_id == len(self._ports):
85 self._logger.error("Can't add port! There are only " +
86 len(self._ports) + " ports " +
90 if not self._ports[self._current_id]:
91 self._logger.error("Can't detect device name for NIC %s", self._current_id)
92 raise ValueError("Invalid device name for %s" % self._current_id)
94 bridge = self._bridges[switch_name]
95 port_name = self._ports[self._current_id]
99 tasks.run_task(['sudo', 'ifconfig', port_name, '0'],
100 self._logger, 'Remove IP', False)
102 of_port = bridge.add_port(port_name, params)
103 self._current_id += 1
104 return (port_name, of_port)
106 def add_vport(self, switch_name):
108 Method adds virtual port into OVS vanilla
110 See IVswitch for general description
112 # Create tap devices for the VM
113 tap_name = 'tap' + str(self._vport_id)
116 tasks.run_task(['sudo', 'ip', 'tuntap', 'del',
117 tap_name, 'mode', 'tap'],
118 self._logger, 'Creating tap device...', False)
120 tasks.run_task(['sudo', 'ip', 'tuntap', 'add',
121 tap_name, 'mode', 'tap'],
122 self._logger, 'Creating tap device...', False)
124 tasks.run_task(['sudo', 'ifconfig', tap_name, '0'],
125 self._logger, 'Bring up ' + tap_name, False)
127 bridge = self._bridges[switch_name]
128 of_port = bridge.add_port(tap_name, [])
129 return (tap_name, of_port)