1 # Copyright 2015-2018 Intel Corporation., Tieto
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.
39 self._ports = list(nic['device'] for nic in settings.getValue('NICS'))
40 self._vswitchd_args += ["unix:%s" % self.get_db_sock_path()]
41 self._vswitchd_args += settings.getValue('VSWITCHD_VANILLA_ARGS')
44 """See IVswitch for general description
46 Kills ovsdb and vswitchd and removes kernel modules.
48 # remove all tap interfaces
49 for i in range(self._vport_id):
51 tap_cmd_list = ['sudo', 'ip', 'tuntap', 'del', tapx, 'mode', 'tap']
52 # let's assume, that all VMs have NIC QUEUES enabled or disabled
54 if int(settings.getValue('GUEST_NIC_QUEUES')[0]):
55 tap_cmd_list += ['multi_queue']
56 tasks.run_task(tap_cmd_list, self._logger, 'Deleting ' + tapx, False)
59 # remove datapath before vswitch shutdown
63 super(OvsVanilla, self).stop()
65 # give vswitch time to terminate before modules are removed
67 self._module_manager.remove_modules()
69 def add_phy_port(self, switch_name):
71 Method adds port based on detected device names.
73 See IVswitch for general description
75 if self._current_id == len(self._ports):
76 raise RuntimeError("Can't add phy port! There are only {} ports defined "
77 "by WHITELIST_NICS parameter!".format(len(self._ports)))
78 if not self._ports[self._current_id]:
79 self._logger.error("Can't detect device name for NIC %s", self._current_id)
80 raise ValueError("Invalid device name for %s" % self._current_id)
82 bridge = self._switches[switch_name]
83 port_name = self._ports[self._current_id]
87 tasks.run_task(['sudo', 'ip', 'addr', 'flush', 'dev', port_name],
88 self._logger, 'Remove IP', False)
89 tasks.run_task(['sudo', 'ip', 'link', 'set', 'dev', port_name, 'up'],
90 self._logger, 'Bring up ' + port_name, False)
92 of_port = bridge.add_port(port_name, params)
94 return (port_name, of_port)
96 def add_vport(self, switch_name):
98 Method adds virtual port into OVS vanilla
100 See IVswitch for general description
102 # Create tap devices for the VM
103 tap_name = 'tap' + str(self._vport_id)
105 tap_cmd_list = ['sudo', 'ip', 'tuntap', 'del', tap_name, 'mode', 'tap']
106 # let's assume, that all VMs have NIC QUEUES enabled or disabled
108 if int(settings.getValue('GUEST_NIC_QUEUES')[0]):
109 tap_cmd_list += ['multi_queue']
110 tasks.run_task(tap_cmd_list, self._logger,
111 'Creating tap device...', False)
113 tap_cmd_list = ['sudo', 'ip', 'tuntap', 'add', tap_name, 'mode', 'tap']
114 # let's assume, that all VMs have NIC QUEUES enabled or disabled
116 if int(settings.getValue('GUEST_NIC_QUEUES')[0]):
117 tap_cmd_list += ['multi_queue']
118 tasks.run_task(tap_cmd_list, self._logger,
119 'Creating tap device...', False)
120 if settings.getValue('VSWITCH_JUMBO_FRAMES_ENABLED'):
121 tasks.run_task(['ifconfig', tap_name, 'mtu',
122 str(settings.getValue('VSWITCH_JUMBO_FRAMES_SIZE'))],
123 self._logger, 'Setting mtu size', False)
125 tasks.run_task(['sudo', 'ip', 'addr', 'flush', 'dev', tap_name],
126 self._logger, 'Remove IP', False)
127 tasks.run_task(['sudo', 'ip', 'link', 'set', 'dev', tap_name, 'up'],
128 self._logger, 'Bring up ' + tap_name, False)
130 bridge = self._switches[switch_name]
131 of_port = bridge.add_port(tap_name, [])
132 return (tap_name, of_port)