1 # Copyright 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 VPP implementation using DPDK and vhostuser vports
24 from src.dpdk import dpdk
25 from conf import settings as S
26 from vswitches.vswitch import IVSwitch
27 from tools import tasks
28 from tools.version import Version
30 # pylint: disable=too-many-public-methods
31 class VppDpdkVhost(IVSwitch, tasks.Process):
32 """ VPP with DPDK support
35 _bridge_idx_counter = 100
38 """See IVswitch for general description
40 self._logfile = os.path.join(S.getValue('LOG_DIR'),
41 S.getValue('LOG_FILE_VPP'))
42 self._logger = logging.getLogger(__name__)
43 self._expect = r'vpp#'
45 self._vswitch_args = []
47 self._cmd_template = ['sudo', '-E', S.getValue('TOOLS')['vpp']]
49 self._logger = logging.getLogger(__name__)
53 self._vpp_ctl = ['sudo', S.getValue('TOOLS')['vppctl']]
56 tmp_args = copy.deepcopy(S.getValue('VSWITCH_VPP_ARGS'))
57 if 'dpdk' not in tmp_args:
60 # override socket-mem settings
61 for tmp_arg in tmp_args['dpdk']:
62 if tmp_arg.startswith('socket-mem'):
63 tmp_args['dpdk'].remove(tmp_arg)
64 tmp_args['dpdk'].append('socket-mem ' +
65 ','.join(S.getValue('DPDK_SOCKET_MEM')))
67 # create directory for vhostuser sockets if needed
68 if not os.path.exists(S.getValue('TOOLS')['ovs_var_tmp']):
69 tasks.run_task(['sudo', 'mkdir', '-p',
70 S.getValue('TOOLS')['ovs_var_tmp']], self._logger)
72 # configure path to the plugins
73 tmp_args['plugin_path'] = S.getValue('TOOLS')['vpp_plugin_path']
75 # cli sock file must be used for VPP 17.10 and newer
76 if S.getValue('VSWITCH_VPP_CLI_SOCK'):
77 self._vpp_ctl += ['-s', S.getValue('VSWITCH_VPP_CLI_SOCK')]
78 tmp_args['unix'].append('cli-listen {}'.format(
79 S.getValue('VSWITCH_VPP_CLI_SOCK')))
81 mqs = int(S.getValue('VSWITCH_DPDK_MULTI_QUEUES'))
84 tmp_rxqs = " {{ num-rx-queues {} }}".format(mqs)
86 # configure physical ports
87 for nic in S.getValue('NICS'):
88 tmp_args['dpdk'].append("dev {}{}".format(nic['pci'], tmp_rxqs))
89 self._vswitch_args = self._process_vpp_args(tmp_args)
91 def _get_nic_info(self, key='Name'):
92 """Read NIC info from VPP and return NIC details in a dictionary
93 indexed by given ``key``
95 :param key: Name of the key to be used for indexing result dictionary
97 :returns: Dictionary with NIC infos including their PCI addresses
100 output = self.run_vppctl(['show', 'hardware', 'brief'])
101 # parse output and store basic info about NICS
102 ifaces = output[0].split('\n')
103 keys = ifaces[0].split()
105 keyidx = keys.index(key)
106 for iface in ifaces[1:]:
107 tmpif = iface.split()
110 # get PCI address of given interface
111 output = self.run_vppctl(['show', 'hardware', tmpif[1], 'detail'])
112 match = re.search(r'pci address:\s*([\d:\.]+)', output[0])
114 # normalize PCI address, e.g. 0000:05:10.01 => 0000:05:10.1
115 tmp_pci = match.group(1).split('.')
116 tmp_pci[1] = str(int(tmp_pci[1]))
117 tmpif.append('.'.join(tmp_pci))
120 # store only NICs with reasonable index
121 if tmpif[keyidx] is not None:
122 result[tmpif[keyidx]] = dict(zip(keys, tmpif))
126 def _process_vpp_args(self, args):
127 """Produce VPP CLI args from input dictionary ``args``
131 cli_args.append(cfg_key)
132 if isinstance(args[cfg_key], str):
133 cli_args.append(args[cfg_key])
135 cli_args.append("{{ {} }}".format(' '.join(args[cfg_key])))
137 self._logger.debug("VPP CLI args: %s", cli_args)
141 """Activates DPDK kernel modules and starts VPP
143 :raises: pexpect.EOF, pexpect.TIMEOUT
146 self._logger.info("Starting VPP...")
148 self._cmd = self._cmd_template + self._vswitch_args
151 tasks.Process.start(self)
153 except (pexpect.EOF, pexpect.TIMEOUT) as exc:
154 logging.error("Exception during VPP start.")
157 self._logger.info("VPP...Started.")
160 """See IVswitch for general description
162 Kills VPP and removes DPDK kernel modules.
164 self._logger.info("Terminating VPP...")
166 self._logger.info("VPP...Terminated.")
169 def kill(self, signal='-15', sleep=10):
170 """See IVswitch for general description
174 if self.is_running():
176 output = self.run_vppctl(['show', 'version', 'verbose'])
177 match = re.search(r'Current PID:\s*([0-9]+)', output[0])
179 vpp_pid = match.group(1)
180 tasks.terminate_task(vpp_pid, logger=self._logger)
182 # in case, that pid was not detected or sudo envelope
183 # has not been terminated yet
184 tasks.Process.kill(self, signal, sleep)
186 def get_version(self):
187 """See IVswitch for general description
190 output = self.run_vppctl(['show', 'version', 'verbose'])
192 self._logger.warning("VPP version can not be read!")
195 match = re.search(r'Version:\s*(.+)', output[0])
197 versions.append(Version(S.getValue('VSWITCH'), match.group(1)))
199 match = re.search(r'DPDK Version:\s*DPDK (.+)', output[0])
201 versions.append(Version('dpdk', match.group(1)))
205 def add_switch(self, switch_name, dummy_params=None):
206 """See IVswitch for general description
208 if switch_name in self._switches:
209 self._logger.warning("switch %s already exists...", switch_name)
211 self._switches[switch_name] = self._bridge_idx_counter
212 self._bridge_idx_counter += 1
214 def del_switch(self, switch_name):
215 """See IVswitch for general description
217 if switch_name in self._switches:
218 del self._switches[switch_name]
220 def add_phy_port(self, dummy_switch_name):
221 """See IVswitch for general description
222 :raises: RuntimeError
224 # get list of physical interfaces with PCI addresses
225 vpp_nics = self._get_nic_info(key='Pci')
226 # check if there are any NICs left
227 if len(self._phy_ports) >= len(S.getValue('NICS')):
228 raise RuntimeError('All available NICs are already configured!')
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 socket_name = S.getValue('TOOLS')['ovs_var_tmp'] + 'dpdkvhostuser' + str(len(self._virt_ports))
242 if S.getValue('VSWITCH_VHOSTUSER_SERVER_MODE'):
246 output = self.run_vppctl(['create', 'vhost-user', 'socket', socket_name] + mode +
247 S.getValue('VSWITCH_VPP_VHOSTUSER_ARGS'))
248 if output[0].find('returned') >= 0:
249 raise RuntimeError('VPP VhostUser interface cannot be created.')
250 nic_name = output[0].strip()
251 self._virt_ports.append(nic_name)
252 self.run_vppctl(['set', 'int', 'state', nic_name, 'up'])
253 return (nic_name, None)
255 def del_port(self, switch_name, port_name):
256 """See IVswitch for general description
258 if port_name in self._phy_ports:
259 self.run_vppctl(['set', 'int', 'state', port_name, 'down'])
260 self._phy_ports.remove(port_name)
261 elif port_name in self._virt_ports:
262 self.run_vppctl(['set', 'int', 'state', port_name, 'down'])
263 self.run_vppctl(['delete', 'vhost-user', port_name])
264 self._virt_ports.remove(port_name)
266 self._logger.warning("Port %s is not configured.", port_name)
268 def add_l2patch(self, port1, port2, bidir=False):
269 """Create l2patch connection between given ports
271 self.run_vppctl(['test', 'l2patch', 'rx', port1, 'tx', port2])
273 self.run_vppctl(['test', 'l2patch', 'rx', port2, 'tx', port1])
275 def add_xconnect(self, port1, port2, bidir=False):
276 """Create l2patch connection between given ports
278 self.run_vppctl(['set', 'interface', 'l2', 'xconnect', port1, port2])
280 self.run_vppctl(['set', 'interface', 'l2', 'xconnect', port2, port1])
282 def add_bridge(self, switch_name, port1, port2, dummy_bidir=False):
283 """Add given ports to bridge ``switch_name``
285 self.run_vppctl(['set', 'interface', 'l2', 'bridge', port1,
286 str(self._switches[switch_name])])
287 self.run_vppctl(['set', 'interface', 'l2', 'bridge', port2,
288 str(self._switches[switch_name])])
290 def add_connection(self, switch_name, port1, port2, bidir=False):
291 """See IVswitch for general description
293 :raises: RuntimeError
295 mode = S.getValue('VSWITCH_VPP_L2_CONNECT_MODE')
296 if mode == 'l2patch':
297 self.add_l2patch(port1, port2, bidir)
298 elif mode == 'xconnect':
299 self.add_xconnect(port1, port2, bidir)
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, bidir=False):
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
310 :param bidir: switch between uni and bidirectional traffic
312 self.run_vppctl(['test', 'l2patch', 'rx', port1, 'tx', port2, 'del'])
314 self.run_vppctl(['test', 'l2patch', 'rx', port2, 'tx', port1, 'del'])
316 def del_xconnect(self, dummy_port1, dummy_port2, dummy_bidir=False):
317 """Remove xconnect connection between given ports
319 self._logger.warning('VPP: Removal of l2 xconnect is not implemented.')
321 def del_bridge(self, dummy_switch_name, dummy_port1, dummy_port2):
322 """Remove given ports from the bridge
324 self._logger.warning('VPP: Removal of interfaces from bridge is not implemented.')
326 def del_connection(self, switch_name, port1, port2, bidir=False):
327 """See IVswitch for general description
329 :raises: RuntimeError
331 mode = S.getValue('VSWITCH_VPP_L2_CONNECT_MODE')
332 if mode == 'l2patch':
333 self.del_l2patch(port1, port2, bidir)
334 elif mode == 'xconnect':
335 self.del_xconnect(port1, port2, bidir)
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._logger.warning("VPP: Dump of l2 xconnections is not supported.")
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_bidir=False):
415 """ Validate that connection was added
419 def validate_del_connection(self, dummy_result, dummy_switch_name, dummy_port1,
420 dummy_port2, dummy_bidir=False):
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_flow(self, switch_name, flow, cache='off'):
440 """See IVswitch for general description
442 raise NotImplementedError()
444 def del_flow(self, switch_name, flow=None):
445 """See IVswitch for general description
447 raise NotImplementedError()
449 def dump_flows(self, switch_name):
450 """See IVswitch for general description
452 raise NotImplementedError()
454 def add_route(self, switch_name, network, destination):
455 """See IVswitch for general description
457 raise NotImplementedError()
459 def set_tunnel_arp(self, ip_addr, mac_addr, switch_name):
460 """See IVswitch for general description
462 raise NotImplementedError()
464 def add_tunnel_port(self, switch_name, remote_ip, tunnel_type='vxlan', params=None):
465 """See IVswitch for general description
467 raise NotImplementedError()
469 def get_ports(self, switch_name):
470 """See IVswitch for general description
472 raise NotImplementedError()