1 # Copyright 2015-2017 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 import tasks
24 class OvsVanilla(IVSwitchOvs):
27 This is wrapper for functionality implemented in src.ovs.
29 The method docstrings document only considerations specific to this
30 implementation. For generic information of the nature of the methods,
31 see the interface definition.
38 super(OvsVanilla, self).__init__()
39 self._ports = list(nic['device'] for nic in settings.getValue('NICS'))
40 self._logger = logging.getLogger(__name__)
41 self._vswitchd_args += ["unix:%s" % self.get_db_sock_path()]
42 self._vswitchd_args += settings.getValue('VSWITCHD_VANILLA_ARGS')
45 """See IVswitch for general description
47 Kills ovsdb and vswitchd and removes kernel modules.
49 # remove all tap interfaces
50 for i in range(self._vport_id):
52 tap_cmd_list = ['sudo', 'ip', 'tuntap', 'del', tapx, 'mode', 'tap']
53 # let's assume, that all VMs have NIC QUEUES enabled or disabled
55 if int(settings.getValue('GUEST_NIC_QUEUES')[0]):
56 tap_cmd_list += ['multi_queue']
57 tasks.run_task(tap_cmd_list, self._logger, 'Deleting ' + tapx, False)
60 super(OvsVanilla, self).stop()
64 self._module_manager.remove_modules()
66 def add_phy_port(self, switch_name):
68 Method adds port based on detected device names.
70 See IVswitch for general description
72 if self._current_id == len(self._ports):
73 self._logger.error("Can't add port! There are only " +
74 len(self._ports) + " ports " +
76 raise RuntimeError('Failed to add phy port')
77 if not self._ports[self._current_id]:
78 self._logger.error("Can't detect device name for NIC %s", self._current_id)
79 raise ValueError("Invalid device name for %s" % self._current_id)
81 bridge = self._bridges[switch_name]
82 port_name = self._ports[self._current_id]
86 tasks.run_task(['sudo', 'ip', 'addr', 'flush', 'dev', port_name],
87 self._logger, 'Remove IP', False)
88 tasks.run_task(['sudo', 'ip', 'link', 'set', 'dev', port_name, 'up'],
89 self._logger, 'Bring up ' + port_name, False)
91 of_port = bridge.add_port(port_name, params)
93 return (port_name, of_port)
95 def add_vport(self, switch_name):
97 Method adds virtual port into OVS vanilla
99 See IVswitch for general description
101 # Create tap devices for the VM
102 tap_name = 'tap' + str(self._vport_id)
104 tap_cmd_list = ['sudo', 'ip', 'tuntap', 'del', tap_name, 'mode', 'tap']
105 # let's assume, that all VMs have NIC QUEUES enabled or disabled
107 if int(settings.getValue('GUEST_NIC_QUEUES')[0]):
108 tap_cmd_list += ['multi_queue']
109 tasks.run_task(tap_cmd_list, self._logger,
110 'Creating tap device...', False)
112 tap_cmd_list = ['sudo', 'ip', 'tuntap', 'add', tap_name, 'mode', 'tap']
113 # let's assume, that all VMs have NIC QUEUES enabled or disabled
115 if int(settings.getValue('GUEST_NIC_QUEUES')[0]):
116 tap_cmd_list += ['multi_queue']
117 tasks.run_task(tap_cmd_list, self._logger,
118 'Creating tap device...', False)
120 tasks.run_task(['sudo', 'ip', 'addr', 'flush', 'dev', tap_name],
121 self._logger, 'Remove IP', False)
122 tasks.run_task(['sudo', 'ip', 'link', 'set', 'dev', tap_name, 'up'],
123 self._logger, 'Bring up ' + tap_name, False)
125 bridge = self._bridges[switch_name]
126 of_port = bridge.add_port(tap_name, [])
127 return (tap_name, of_port)