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 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" % self.get_db_sock_path()]
43 self._vswitchd_args += settings.getValue('VSWITCHD_VANILLA_ARGS')
44 self._module_manager = ModuleManager()
47 """See IVswitch for general description
49 Activates kernel modules, ovsdb and vswitchd.
51 self._module_manager.insert_modules(
52 settings.getValue('VSWITCH_VANILLA_KERNEL_MODULES'))
53 super(OvsVanilla, self).start()
56 """See IVswitch for general description
58 Kills ovsdb and vswitchd and removes kernel modules.
60 # remove all tap interfaces
61 for i in range(self._vport_id):
63 tap_cmd_list = ['sudo', 'ip', 'tuntap', 'del', tapx, 'mode', 'tap']
64 if int(settings.getValue('GUEST_NIC_QUEUES')):
65 tap_cmd_list += ['multi_queue']
66 tasks.run_task(tap_cmd_list, self._logger, 'Deleting ' + tapx, False)
69 super(OvsVanilla, self).stop()
73 self._module_manager.remove_modules()
75 def add_phy_port(self, switch_name):
77 Method adds port based on detected device names.
79 See IVswitch for general description
81 if self._current_id == len(self._ports):
82 self._logger.error("Can't add port! There are only " +
83 len(self._ports) + " ports " +
87 if not self._ports[self._current_id]:
88 self._logger.error("Can't detect device name for NIC %s", self._current_id)
89 raise ValueError("Invalid device name for %s" % self._current_id)
91 bridge = self._bridges[switch_name]
92 port_name = self._ports[self._current_id]
96 tasks.run_task(['sudo', 'ip', 'addr', 'flush', 'dev', port_name],
97 self._logger, 'Remove IP', False)
98 tasks.run_task(['sudo', 'ip', 'link', 'set', 'dev', port_name, 'up'],
99 self._logger, 'Bring up ' + port_name, False)
101 of_port = bridge.add_port(port_name, params)
102 self._current_id += 1
103 return (port_name, of_port)
105 def add_vport(self, switch_name):
107 Method adds virtual port into OVS vanilla
109 See IVswitch for general description
111 # Create tap devices for the VM
112 tap_name = 'tap' + str(self._vport_id)
114 tap_cmd_list = ['sudo', 'ip', 'tuntap', 'del', tap_name, 'mode', 'tap']
115 if int(settings.getValue('GUEST_NIC_QUEUES')):
116 tap_cmd_list += ['multi_queue']
117 tasks.run_task(tap_cmd_list, self._logger,
118 'Creating tap device...', False)
120 tap_cmd_list = ['sudo', 'ip', 'tuntap', 'add', tap_name, 'mode', 'tap']
121 if int(settings.getValue('GUEST_NIC_QUEUES')):
122 tap_cmd_list += ['multi_queue']
123 tasks.run_task(tap_cmd_list, self._logger,
124 'Creating tap device...', False)
126 tasks.run_task(['sudo', 'ip', 'addr', 'flush', 'dev', tap_name],
127 self._logger, 'Remove IP', False)
128 tasks.run_task(['sudo', 'ip', 'link', 'set', 'dev', tap_name, 'up'],
129 self._logger, 'Bring up ' + tap_name, False)
131 bridge = self._bridges[switch_name]
132 of_port = bridge.add_port(tap_name, [])
133 return (tap_name, of_port)