Girish Gowdra | e933cd3 | 2019-11-21 21:04:41 +0530 | [diff] [blame] | 1 | # |
| 2 | # Copyright 2018 the original author or authors. |
| 3 | # |
| 4 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | # you may not use this file except in compliance with the License. |
| 6 | # You may obtain a copy of the License at |
| 7 | # |
| 8 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | # |
| 10 | # Unless required by applicable law or agreed to in writing, software |
| 11 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | # See the License for the specific language governing permissions and |
| 14 | # limitations under the License. |
| 15 | |
| 16 | from __future__ import absolute_import |
| 17 | import structlog |
| 18 | from twisted.internet import reactor |
| 19 | from twisted.internet.defer import inlineCallbacks, TimeoutError, failure |
| 20 | from pyvoltha.adapters.extensions.omci.omci_me import Ont2G, OmciNullPointer, PriorityQueueFrame, \ |
| 21 | Ieee8021pMapperServiceProfileFrame, MacBridgePortConfigurationDataFrame |
| 22 | from pyvoltha.adapters.extensions.omci.tasks.task import Task |
| 23 | from pyvoltha.adapters.extensions.omci.omci_defs import EntityOperations, ReasonCodes |
| 24 | from pyvoltha.adapters.extensions.omci.omci_entities import OntG, Tcont, PriorityQueueG |
| 25 | |
| 26 | OP = EntityOperations |
| 27 | RC = ReasonCodes |
| 28 | |
| 29 | # The DELETE_TP_TASK_PRIORITY should be higher than SETUP_TP_TASK_PRIORITY |
| 30 | DELETE_TP_TASK_PRIORITY = 250 |
| 31 | |
| 32 | |
| 33 | class TechProfileDeleteFailure(Exception): |
| 34 | """ |
| 35 | This error is raised by default when the delete fails |
| 36 | """ |
| 37 | |
| 38 | |
| 39 | class TechProfileResourcesFailure(Exception): |
| 40 | """ |
| 41 | This error is raised by when one or more resources required is not available |
| 42 | """ |
| 43 | |
| 44 | |
| 45 | class BrcmTpDeleteTask(Task): |
| 46 | """ |
| 47 | OpenOMCI Tech-Profile Delete Task |
| 48 | |
| 49 | """ |
| 50 | |
| 51 | name = "Broadcom Tech-Profile Delete Task" |
| 52 | |
| 53 | def __init__(self, omci_agent, handler, uni_id, tp_table_id, |
| 54 | tcont=None, gem_port=None): |
| 55 | """ |
| 56 | Class initialization |
| 57 | |
| 58 | :param omci_agent: (OmciAdapterAgent) OMCI Adapter agent |
| 59 | :param handler: (BrcmOpenomciOnuHandler) ONU Device Handler Instance |
| 60 | :param uni_id: (int) numeric id of the uni port on the onu device, starts at 0 |
| 61 | :param tp_table_id: (int) Technology Profile Table-ID |
| 62 | """ |
| 63 | log = structlog.get_logger(device_id=handler.device_id, uni_id=uni_id) |
| 64 | log.debug('function-entry') |
| 65 | |
| 66 | super(BrcmTpDeleteTask, self).__init__(BrcmTpDeleteTask.name, |
| 67 | omci_agent, |
| 68 | handler.device_id, |
| 69 | priority=DELETE_TP_TASK_PRIORITY, |
| 70 | exclusive=True) |
| 71 | |
| 72 | self.log = log |
| 73 | |
| 74 | self._onu_device = omci_agent.get_device(handler.device_id) |
| 75 | self._local_deferred = None |
| 76 | |
| 77 | self._uni_port = handler.uni_ports[uni_id] |
| 78 | assert self._uni_port.uni_id == uni_id |
| 79 | |
| 80 | # Tech Profile Table ID |
| 81 | self._tp_table_id = tp_table_id |
| 82 | |
| 83 | self._tcont = tcont |
| 84 | self._gem_port = gem_port |
| 85 | |
| 86 | self._alloc_id = self._tcont.alloc_id if self._tcont else None |
| 87 | self._gem_port_id = self._gem_port.gem_id if gem_port else None |
| 88 | |
| 89 | # Entity IDs. IDs with values can probably be most anything for most ONUs, |
| 90 | # IDs set to None are discovered/set |
| 91 | self._mac_bridge_service_profile_entity_id = \ |
| 92 | handler.mac_bridge_service_profile_entity_id |
| 93 | self._ieee_mapper_service_profile_entity_id = \ |
| 94 | handler.pon_port.ieee_mapper_service_profile_entity_id |
| 95 | self._mac_bridge_port_ani_entity_id = \ |
| 96 | handler.pon_port.mac_bridge_port_ani_entity_id |
| 97 | |
| 98 | def cancel_deferred(self): |
| 99 | self.log.debug('function-entry') |
| 100 | super(BrcmTpDeleteTask, self).cancel_deferred() |
| 101 | |
| 102 | d, self._local_deferred = self._local_deferred, None |
| 103 | try: |
| 104 | if d is not None and not d.called: |
| 105 | d.cancel() |
| 106 | except: |
| 107 | pass |
| 108 | |
| 109 | def start(self): |
| 110 | """ |
| 111 | Start the Tech-Profile Delete |
| 112 | """ |
| 113 | self.log.debug('function-entry') |
| 114 | super(BrcmTpDeleteTask, self).start() |
| 115 | if self._tcont is not None: |
| 116 | self._local_deferred = reactor.callLater(0, self.delete_tcont_and_associated_me) |
| 117 | elif self._gem_port is not None: |
| 118 | self._local_deferred = reactor.callLater(0, self.delete_gem_port_nw_ctp_and_associated_me) |
| 119 | else: |
| 120 | raise Exception("both-alloc-id-and-gem-port-id-are-none") |
| 121 | |
| 122 | def stop(self): |
| 123 | """ |
| 124 | Shutdown Tech-Profile delete tasks |
| 125 | """ |
| 126 | self.log.debug('function-entry') |
| 127 | self.log.debug('stopping') |
| 128 | |
| 129 | self.cancel_deferred() |
| 130 | super(BrcmTpDeleteTask, self).stop() |
| 131 | |
| 132 | def check_status_and_state(self, results, operation=''): |
| 133 | """ |
| 134 | Check the results of an OMCI response. An exception is thrown |
| 135 | if the task was cancelled or an error was detected. |
| 136 | |
| 137 | :param results: (OmciFrame) OMCI Response frame |
| 138 | :param operation: (str) what operation was being performed |
| 139 | :return: True if successful, False if the entity existed (already created) |
| 140 | """ |
| 141 | self.log.debug('function-entry') |
| 142 | |
| 143 | omci_msg = results.fields['omci_message'].fields |
| 144 | status = omci_msg['success_code'] |
| 145 | error_mask = omci_msg.get('parameter_error_attributes_mask', 'n/a') |
| 146 | failed_mask = omci_msg.get('failed_attributes_mask', 'n/a') |
| 147 | unsupported_mask = omci_msg.get('unsupported_attributes_mask', 'n/a') |
| 148 | |
| 149 | self.log.debug("OMCI Result", operation=operation, omci_msg=omci_msg, status=status, error_mask=error_mask, |
| 150 | failed_mask=failed_mask, unsupported_mask=unsupported_mask) |
| 151 | |
| 152 | if status == RC.Success: |
| 153 | self.strobe_watchdog() |
| 154 | return True |
| 155 | |
| 156 | elif status == RC.InstanceExists: |
| 157 | return False |
| 158 | |
| 159 | raise TechProfileDeleteFailure( |
| 160 | '{} failed with a status of {}, error_mask: {}, failed_mask: {}, ' |
| 161 | 'unsupported_mask: {}'.format(operation, status, error_mask, failed_mask, unsupported_mask)) |
| 162 | |
| 163 | @inlineCallbacks |
| 164 | def delete_tcont_and_associated_me(self): |
| 165 | self.log.debug('function-entry') |
| 166 | |
| 167 | omci_cc = self._onu_device.omci_cc |
| 168 | |
| 169 | try: |
| 170 | ################################################################################ |
| 171 | # Reset TCONT ME |
| 172 | ################################################################################ |
| 173 | |
| 174 | tcont_idents = self._onu_device.query_mib(Tcont.class_id) |
| 175 | self.log.debug('tcont-idents', tcont_idents=tcont_idents) |
| 176 | tcont_entity_id = None |
| 177 | for k, v in tcont_idents.items(): |
| 178 | if not isinstance(v, dict): |
| 179 | continue |
| 180 | alloc_check = v.get('attributes', {}).get('alloc_id', 0) |
| 181 | # Some onu report both to indicate an available tcont |
| 182 | if alloc_check == self._alloc_id: |
| 183 | tcont_entity_id = k |
| 184 | break |
| 185 | |
| 186 | if tcont_entity_id is None: |
| 187 | self.log.error("tcont-not-found-for-delete", alloc_id=self._alloc_id) |
| 188 | return |
| 189 | |
| 190 | self.log.debug('found-tcont', tcont_entity_id=tcont_entity_id, alloc_id=self._alloc_id) |
| 191 | |
| 192 | # Remove the TCONT (rather reset the TCONT to point alloc_id to 0xffff) |
| 193 | # The _tcont.remove_from_hardware is already doing check_status_and_state |
| 194 | yield self._tcont.remove_from_hardware(omci_cc) |
| 195 | |
| 196 | # At this point, the gem-ports should have been removed already. |
| 197 | # Remove the 8021p Mapper and ANI MacBridgePortConfigData |
| 198 | yield self._delete__8021p_mapper__ani_mac_bridge_port() |
| 199 | |
| 200 | # There are no other associated MEs now. |
| 201 | # There might be TrafficScheduler MEs that point to a TCONT. |
| 202 | # TrafficScheduler ME not used currently. |
| 203 | |
| 204 | self.deferred.callback("tech-profile-remove-success--tcont") |
| 205 | |
| 206 | except TimeoutError as e: |
| 207 | self.log.warn('rx-timeout-tech-profile', e=e) |
| 208 | self.deferred.errback(failure.Failure(e)) |
| 209 | |
| 210 | except Exception as e: |
| 211 | self.log.exception('omci-delete-tech-profile', e=e) |
| 212 | self.deferred.errback(failure.Failure(e)) |
| 213 | |
| 214 | @inlineCallbacks |
| 215 | def delete_gem_port_nw_ctp_and_associated_me(self): |
| 216 | omci_cc = self._onu_device.omci_cc |
| 217 | try: |
| 218 | ################################################################################ |
| 219 | # Delete GemPortNetworkCTP and GemPortInterworkingPoint |
| 220 | ################################################################################ |
| 221 | # The _gem_port.remove_from_hardware is already doing check_status_and_state |
| 222 | yield self._gem_port.remove_from_hardware(omci_cc) |
| 223 | |
| 224 | self.deferred.callback("tech-profile-remove-success--gem-port") |
| 225 | |
| 226 | except TimeoutError as e: |
| 227 | self.log.warn('rx-timeout-tech-profile', e=e) |
| 228 | self.deferred.errback(failure.Failure(e)) |
| 229 | |
| 230 | except Exception as e: |
| 231 | self.log.exception('omci-delete-tech-profile', e=e) |
| 232 | self.deferred.errback(failure.Failure(e)) |
| 233 | |
| 234 | @inlineCallbacks |
| 235 | def _delete__8021p_mapper__ani_mac_bridge_port(self): |
| 236 | |
| 237 | omci_cc = self._onu_device.omci_cc |
| 238 | |
| 239 | try: |
| 240 | ################################################################################ |
| 241 | # Delete 8021p mapper |
| 242 | ################################################################################ |
| 243 | msg = Ieee8021pMapperServiceProfileFrame( |
| 244 | self._ieee_mapper_service_profile_entity_id + |
| 245 | self._uni_port.mac_bridge_port_num + |
| 246 | self._tp_table_id |
| 247 | ) |
| 248 | frame = msg.delete() |
| 249 | self.log.debug('openomci-msg', omci_msg=msg) |
| 250 | results = yield omci_cc.send(frame) |
| 251 | self.check_status_and_state(results, 'delete-8021p-mapper-service-profile') |
| 252 | |
| 253 | ################################################################################ |
| 254 | # Delete MacBridgePortConfigData |
| 255 | ################################################################################ |
| 256 | # TODO: magic. make a static variable for tp_type |
| 257 | msg = MacBridgePortConfigurationDataFrame( |
Matt Jeanneret | 2e5c6f1 | 2019-12-13 07:06:06 -0500 | [diff] [blame] | 258 | self._mac_bridge_port_ani_entity_id + self._uni_port.entity_id + self._tp_table_id, # Entity ID |
Girish Gowdra | e933cd3 | 2019-11-21 21:04:41 +0530 | [diff] [blame] | 259 | ) |
| 260 | frame = msg.delete() |
| 261 | self.log.debug('openomci-msg', omci_msg=msg) |
| 262 | results = yield omci_cc.send(frame) |
| 263 | self.check_status_and_state(results, 'delete-mac-bridge-port-configuration-data-8021p-mapper') |
| 264 | |
| 265 | except TimeoutError as e: |
| 266 | self.log.warn('rx-timeout-8021p-ani-port-delete', e=e) |
| 267 | raise |
| 268 | |
| 269 | except Exception as e: |
| 270 | self.log.exception('omci-delete-8021p-ani-port-delete', e=e) |
| 271 | raise |