1 # Copyright 2017-2018 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 VPP implementation using DPDK and vhostuser vports
23 from src.dpdk import dpdk
24 from conf import settings as S
25 from vswitches.vswitch import IVSwitch
26 from tools import tasks
27 from tools.version import Version
29 # pylint: disable=too-many-public-methods
30 class VppDpdkVhost(IVSwitch, tasks.Process):
31 """ VPP with DPDK support
34 _bridge_idx_counter = 100
37 """See IVswitch for general description
40 name, ext = os.path.splitext(S.getValue('LOG_FILE_VPP'))
41 rename_vpplf = "{name}_{uid}{ex}".format(name=name,
45 self._logfile = os.path.join(S.getValue('RESULTS_PATH'), rename_vpplf)
46 self._expect = r'vpp#'
47 self._cmd_template = ['sudo', '-E', S.getValue('TOOLS')['vpp']]
50 self._vpp_ctl = ['sudo', S.getValue('TOOLS')['vppctl']]
53 tmp_args = copy.deepcopy(S.getValue('VSWITCH_VPP_ARGS'))
54 if 'dpdk' not in tmp_args:
57 # override socket-mem settings
58 for tmp_arg in tmp_args['dpdk']:
59 if tmp_arg.startswith('socket-mem'):
60 tmp_args['dpdk'].remove(tmp_arg)
61 tmp_args['dpdk'].append('socket-mem ' +
62 ','.join(S.getValue('DPDK_SOCKET_MEM')))
64 # create directory for vhostuser sockets if needed
65 if not os.path.exists(S.getValue('TOOLS')['ovs_var_tmp']):
66 tasks.run_task(['sudo', 'mkdir', '-p',
67 S.getValue('TOOLS')['ovs_var_tmp']], self._logger)
69 # configure path to the plugins
70 tmp_args['plugin_path'] = S.getValue('TOOLS')['vpp_plugin_path']
72 # cli sock file must be used for VPP 17.10 and newer
73 if S.getValue('VSWITCH_VPP_CLI_SOCK'):
74 self._vpp_ctl += ['-s', S.getValue('VSWITCH_VPP_CLI_SOCK')]
75 tmp_args['unix'].append('cli-listen {}'.format(
76 S.getValue('VSWITCH_VPP_CLI_SOCK')))
78 mqs = int(S.getValue('VSWITCH_DPDK_MULTI_QUEUES'))
81 tmp_rxqs = " {{ num-rx-queues {} }}".format(mqs)
83 # configure physical ports
84 for nic in S.getValue('NICS'):
85 tmp_args['dpdk'].append("dev {}{}".format(nic['pci'], tmp_rxqs))
86 self._vswitch_args = self._process_vpp_args(tmp_args)
88 def _get_nic_info(self, key='Name'):
89 """Read NIC info from VPP and return NIC details in a dictionary
90 indexed by given ``key``
92 :param key: Name of the key to be used for indexing result dictionary
94 :returns: Dictionary with NIC infos including their PCI addresses
97 output = self.run_vppctl(['show', 'hardware', 'brief'])
98 # parse output and store basic info about NICS
99 ifaces = output[0].split('\n')
100 keys = ifaces[0].split()
102 keyidx = keys.index(key)
103 for iface in ifaces[1:]:
104 tmpif = iface.split()
107 # get PCI address of given interface
108 output = self.run_vppctl(['show', 'hardware', tmpif[1], 'detail'])
109 match = re.search(r'pci address:\s*([\d:\.]+)', output[0])
111 # normalize PCI address, e.g. 0000:05:10.01 => 0000:05:10.1
112 tmp_pci = match.group(1).split('.')
113 tmp_pci[1] = str(int(tmp_pci[1]))
114 tmpif.append('.'.join(tmp_pci))
117 # store only NICs with reasonable index
118 if tmpif[keyidx] is not None:
119 result[tmpif[keyidx]] = dict(zip(keys, tmpif))
123 def _process_vpp_args(self, args):
124 """Produce VPP CLI args from input dictionary ``args``
128 cli_args.append(cfg_key)
129 if isinstance(args[cfg_key], str):
130 cli_args.append(args[cfg_key])
132 cli_args.append("{{ {} }}".format(' '.join(args[cfg_key])))
134 self._logger.debug("VPP CLI args: %s", cli_args)
138 """Activates DPDK kernel modules and starts VPP
140 :raises: pexpect.EOF, pexpect.TIMEOUT
143 self._logger.info("Starting VPP...")
145 self._cmd = self._cmd_template + self._vswitch_args
148 tasks.Process.start(self)
150 except (pexpect.EOF, pexpect.TIMEOUT) as exc:
151 self._logger.error("Exception during VPP start.")
154 self._logger.info("VPP...Started.")
157 """See IVswitch for general description
159 Kills VPP and removes DPDK kernel modules.
161 self._logger.info("Terminating VPP...")
163 self._logger.info("VPP...Terminated.")
166 def kill(self, signal='-15', sleep=10):
167 """See IVswitch for general description
171 if self.is_running():
173 output = self.run_vppctl(['show', 'version', 'verbose'])
174 match = re.search(r'Current PID:\s*([0-9]+)', output[0])
176 vpp_pid = match.group(1)
177 tasks.terminate_task(vpp_pid, logger=self._logger)
179 # in case, that pid was not detected or sudo envelope
180 # has not been terminated yet
181 tasks.Process.kill(self, signal, sleep)
183 def get_version(self):
184 """See IVswitch for general description
187 output = self.run_vppctl(['show', 'version', 'verbose'])
189 self._logger.warning("VPP version can not be read!")
192 match = re.search(r'Version:\s*(.+)', output[0])
194 versions.append(Version(S.getValue('VSWITCH'), match.group(1)))
196 match = re.search(r'DPDK Version:\s*DPDK (.+)', output[0])
198 versions.append(Version('dpdk', match.group(1)))
202 def add_switch(self, switch_name, dummy_params=None):
203 """See IVswitch for general description
205 # pylint: disable=unused-argument
206 if switch_name in self._switches:
207 self._logger.warning("switch %s already exists...", switch_name)
209 self._switches[switch_name] = self._bridge_idx_counter
210 self._bridge_idx_counter += 1
212 def del_switch(self, switch_name):
213 """See IVswitch for general description
215 if switch_name in self._switches:
216 del self._switches[switch_name]
218 def add_phy_port(self, dummy_switch_name):
219 """See IVswitch for general description
220 :raises: RuntimeError
222 # pylint: disable=unused-argument
223 # get list of physical interfaces with PCI addresses
224 vpp_nics = self._get_nic_info(key='Pci')
225 # check if there are any NICs left
226 if len(self._phy_ports) >= len(S.getValue('NICS')):
227 raise RuntimeError("Can't add phy port! There are only {} ports defined "
228 "by WHITELIST_NICS parameter!".format(len(S.getValue('NICS'))))
230 nic = S.getValue('NICS')[len(self._phy_ports)]
231 if not nic['pci'] in vpp_nics:
232 raise RuntimeError('VPP cannot access nic with PCI address: {}'.format(nic['pci']))
233 nic_name = vpp_nics[nic['pci']]['Name']
234 self._phy_ports.append(nic_name)
235 self.run_vppctl(['set', 'int', 'state', nic_name, 'up'])
236 return (nic_name, vpp_nics[nic['pci']]['Idx'])
238 def add_vport(self, dummy_switch_name):
239 """See IVswitch for general description
241 # pylint: disable=unused-argument
242 socket_name = S.getValue('TOOLS')['ovs_var_tmp'] + 'dpdkvhostuser' + str(len(self._virt_ports))
243 if S.getValue('VSWITCH_VHOSTUSER_SERVER_MODE'):
247 output = self.run_vppctl(['create', 'vhost-user', 'socket', socket_name] + mode +
248 S.getValue('VSWITCH_VPP_VHOSTUSER_ARGS'))
249 if output[0].find('returned') >= 0:
250 raise RuntimeError('VPP VhostUser interface cannot be created.')
251 nic_name = output[0].strip()
252 self._virt_ports.append(nic_name)
253 self.run_vppctl(['set', 'int', 'state', nic_name, 'up'])
254 return (nic_name, None)
256 def del_port(self, switch_name, port_name):
257 """See IVswitch for general description
259 if port_name in self._phy_ports:
260 self.run_vppctl(['set', 'int', 'state', port_name, 'down'])
261 self._phy_ports.remove(port_name)
262 elif port_name in self._virt_ports:
263 self.run_vppctl(['set', 'int', 'state', port_name, 'down'])
264 self.run_vppctl(['delete', 'vhost-user', port_name])
265 self._virt_ports.remove(port_name)
267 self._logger.warning("Port %s is not configured.", port_name)
269 def add_l2patch(self, port1, port2):
270 """Create l2patch connection between given ports
272 self.run_vppctl(['test', 'l2patch', 'rx', port1, 'tx', port2])
274 def add_xconnect(self, port1, port2):
275 """Create l2patch connection between given ports
277 self.run_vppctl(['set', 'interface', 'l2', 'xconnect', port1, port2])
279 def add_bridge(self, switch_name, port1, port2):
280 """Add given ports to bridge ``switch_name``
282 self.run_vppctl(['set', 'interface', 'l2', 'bridge', port1,
283 str(self._switches[switch_name])])
284 self.run_vppctl(['set', 'interface', 'l2', 'bridge', port2,
285 str(self._switches[switch_name])])
287 def add_connection(self, switch_name, port1, port2, traffic=None):
288 """See IVswitch for general description
290 :raises: RuntimeError
293 self._logger.warning("VPP add_connection() does not support 'traffic' options.")
295 mode = S.getValue('VSWITCH_VPP_L2_CONNECT_MODE')
296 if mode == 'l2patch':
297 self.add_l2patch(port1, port2)
298 elif mode == 'xconnect':
299 self.add_xconnect(port1, port2)
300 elif mode == 'bridge':
301 self.add_bridge(switch_name, port1, port2)
303 raise RuntimeError('VPP: Unsupported l2 connection mode detected %s' % mode)
305 def del_l2patch(self, port1, port2):
306 """Remove l2patch connection between given ports
308 :param port1: port to be used in connection
309 :param port2: port to be used in connection
311 self.run_vppctl(['test', 'l2patch', 'rx', port1, 'tx', port2, 'del'])
313 def del_xconnect(self, port1, port2):
314 """Remove xconnect connection between given ports
316 self.run_vppctl(['set', 'interface', 'l3', port1])
317 self.run_vppctl(['set', 'interface', 'l3', port2])
319 def del_bridge(self, _dummy_switch_name, port1, port2):
320 """Remove given ports from the bridge
322 self.run_vppctl(['set', 'interface', 'l3', port1])
323 self.run_vppctl(['set', 'interface', 'l3', port2])
325 def del_connection(self, switch_name, port1=None, port2=None):
326 """See IVswitch for general description
328 :raises: RuntimeError
331 mode = S.getValue('VSWITCH_VPP_L2_CONNECT_MODE')
332 if mode == 'l2patch':
333 self.del_l2patch(port1, port2)
334 elif mode == 'xconnect':
335 self.del_xconnect(port1, port2)
336 elif mode == 'bridge':
337 self.del_bridge(switch_name, port1, port2)
339 raise RuntimeError('VPP: Unsupported l2 connection mode detected %s' % mode)
341 def dump_l2patch(self):
342 """Dump l2patch connections
344 self.run_vppctl(['show', 'l2patch'])
346 def dump_xconnect(self):
347 """Dump l2 xconnect connections
349 self.run_vppctl(['show', 'mode'] + self._phy_ports + self._virt_ports)
351 def dump_bridge(self, switch_name):
352 """Show bridge details
354 :param switch_name: switch on which to operate
356 self.run_vppctl(['show', 'bridge-domain', str(self._switches[switch_name]), 'int'])
358 def dump_connections(self, switch_name):
359 """See IVswitch for general description
361 :raises: RuntimeError
363 mode = S.getValue('VSWITCH_VPP_L2_CONNECT_MODE')
364 if mode == 'l2patch':
366 elif mode == 'xconnect':
368 elif mode == 'bridge':
369 self.dump_bridge(switch_name)
371 raise RuntimeError('VPP: Unsupported l2 connection mode detected %s' % mode)
373 def run_vppctl(self, args, check_error=False):
374 """Run ``vppctl`` with supplied arguments.
376 :param args: Arguments to pass to ``vppctl``
377 :param check_error: Throw exception on error
381 cmd = self._vpp_ctl + args
382 return tasks.run_task(cmd, self._logger, 'Running vppctl...', check_error)
387 def validate_add_switch(self, _dummy_result, switch_name, _dummy_params=None):
388 """Validate - Create a new logical switch with no ports
390 return switch_name in self._switches
392 def validate_del_switch(self, _dummy_result, switch_name):
393 """Validate removal of switch
395 return not self.validate_add_switch(_dummy_result, switch_name)
397 def validate_add_phy_port(self, result, _dummy_switch_name):
398 """ Validate that physical port was added to bridge.
400 return result[0] in self._phy_ports
402 def validate_add_vport(self, result, _dummy_switch_name):
403 """ Validate that virtual port was added to bridge.
405 return result[0] in self._virt_ports
407 def validate_del_port(self, _dummy_result, _dummy_switch_name, port_name):
408 """ Validate that port_name was removed from bridge.
410 return not (port_name in self._phy_ports or port_name in self._virt_ports)
412 # pylint: disable=no-self-use
413 def validate_add_connection(self, _dummy_result, _dummy_switch_name, _dummy_port1,
414 _dummy_port2, _dummy_traffic=None):
415 """ Validate that connection was added
419 def validate_del_connection(self, _dummy_result, _dummy_switch_name, _dummy_port1,
421 """ Validate that connection was deleted
425 def validate_dump_connections(self, _dummy_result, _dummy_switch_name):
426 """ Validate dump connections call
430 def validate_run_vppctl(self, result, _dummy_args, _dummy_check_error=False):
431 """validate execution of ``vppctl`` with supplied arguments.
433 # there shouldn't be any stderr
437 # Non implemented methods
439 def add_route(self, switch_name, network, destination):
440 """See IVswitch for general description
442 raise NotImplementedError()
444 def set_tunnel_arp(self, ip_addr, mac_addr, switch_name):
445 """See IVswitch for general description
447 raise NotImplementedError()
449 def add_tunnel_port(self, switch_name, remote_ip, tunnel_type='vxlan', params=None):
450 """See IVswitch for general description
452 raise NotImplementedError()
454 def get_ports(self, switch_name):
455 """See IVswitch for general description
457 raise NotImplementedError()