def update_flow_table(self, flows, device):
"""
Update the flow table on the OLT. If an existing flow is not in the list, it needs
to be removed from the device.
:param flows: List of flows that should be installed upon completion of this function
:param device: A voltha.Device object, with possible device-type
specific extensions.
"""
self.log.debug('bulk-flow-update',
num_flows=len(flows),
device_id=device.id,
flows=flows)
valid_flows = []
for flow in flows:
try:
# Try to create an EVC.
#
# The first result is the flow entry that was created. This could be a match to an
# existing flow since it is a bulk update. None is returned only if no match to
# an existing entry is found and decode failed (unsupported field)
#
# The second result is the EVC this flow should be added to. This could be an
# existing flow (so your adding another EVC-MAP) or a brand new EVC (no existing
# EVC-MAPs). None is returned if there are not a valid EVC that can be created YET.
valid_flow, evc = FlowEntry.create(flow, self)
if valid_flow is not None:
valid_flows.append(valid_flow.flow_id)
if evc is not None:
try:
evc.schedule_install()
self.add_evc(evc)
except Exception as e:
evc.status = 'EVC Install Exception: {}'.format(
e.message)
self.log.exception('EVC-install', e=e)
except Exception as e:
self.log.exception('bulk-flow-update-add', e=e)
# Now drop all flows from this device that were not in this bulk update
try:
FlowEntry.drop_missing_flows(device.id, valid_flows)
except Exception as e:
self.log.exception('bulk-flow-update-remove', e=e)
def update_flow_table(self, flows, device):
"""
Update the flow table on the OLT. If an existing flow is not in the list, it needs
to be removed from the device.
:param flows: List of flows that should be installed upon completion of this function
:param device: A voltha.Device object, with possible device-type
specific extensions.
"""
self.log.debug('bulk-flow-update', num_flows=len(flows),
device_id=device.id, flows=flows)
valid_flows = []
for flow in flows:
try:
# Try to create an EVC.
#
# The first result is the flow entry that was created. This could be a match to an
# existing flow since it is a bulk update. None is returned only if no match to
# an existing entry is found and decode failed (unsupported field)
#
# The second result is the EVC this flow should be added to. This could be an
# existing flow (so your adding another EVC-MAP) or a brand new EVC (no existing
# EVC-MAPs). None is returned if there are not a valid EVC that can be created YET.
valid_flow, evc = FlowEntry.create(flow, self)
if valid_flow is not None:
valid_flows.append(valid_flow.flow_id)
if evc is not None:
try:
evc.schedule_install()
self.add_evc(evc)
except Exception as e:
evc.status = 'EVC Install Exception: {}'.format(e.message)
self.log.exception('EVC-install', e=e)
except Exception as e:
self.log.exception('bulk-flow-update-add', e=e)
# Now drop all flows from this device that were not in this bulk update
try:
yield FlowEntry.drop_missing_flows(device.id, valid_flows)
except Exception as e:
self.log.exception('bulk-flow-update-remove', e=e)
def add_gem_port(self, gem_port, add_always=False):
"""
Add a GEM Port to this ONU
:param gem_port: (GemPort) GEM Port to add
:param add_always: (boolean) If true, force add (used during h/w resync)
:return: (deferred)
"""
if not self._valid:
returnValue(succeed('Deleting'))
if not add_always and gem_port.gem_id in self._gem_ports:
returnValue(succeed('already created'))
try:
results = yield gem_port.add_to_hardware(self.olt.rest_client,
self._pon_id, self.onu_id)
self._gem_ports[gem_port.gem_id] = gem_port
# May need to update flow tables/evc-maps
if gem_port.alloc_id in self._tconts:
# GEM-IDs are a sorted list (ascending). First gemport handles downstream traffic
from flow.flow_entry import FlowEntry
evc_maps = FlowEntry.find_evc_map_flows(
self._device_id, self._pon_id, self._onu_id)
pass
except Exception as e:
self.log.exception('gem-port', e=e)
raise
returnValue(results)
def remove_gem_id(self, gem_id):
gem_port = self._gem_ports.get(gem_id)
if gem_port is None:
returnValue(succeed('nop'))
del self._gem_ports[gem_id]
# self._resync_flows = True
try:
from flow.flow_entry import FlowEntry
if gem_port.alloc_id in self._tconts:
# May need to update flow tables/evc-maps
# GEM-IDs are a sorted list (ascending). First gemport handles downstream traffic
pass
results = yield gem_port.remove_from_hardware(
self.olt.rest_client, self._pon_id, self.onu_id)
evc_maps = FlowEntry.find_evc_map_flows(self)
for evc_map in evc_maps:
evc_map.remove_gem_port(gem_port)
except Exception as e:
self.log.exception('delete', e=e)
raise
returnValue(succeed(results))
def remove_gem_id(self, gem_id):
from flow.flow_entry import FlowEntry
gem_port = self._gem_ports.get(gem_id)
if gem_port is None:
returnValue('nop')
del self._gem_ports[gem_id]
try:
if gem_port.alloc_id in self._tconts:
# May need to update flow tables/evc-maps
# GEM-IDs are a sorted list (ascending). First gemport handles downstream traffic
evc_maps = FlowEntry.find_evc_map_flows(self)
for evc_map in evc_maps:
evc_map.remove_gem_port(gem_port)
results = yield gem_port.remove_from_hardware(
self.olt.rest_client, self._pon_id, self.onu_id)
except RestInvalidResponseCode as e:
if e.code != 404:
self.log.exception('onu-delete', e=e)
except Exception as ex:
self.log.exception('gem-port-delete', e=ex)
raise
for evc_map in FlowEntry.find_evc_map_flows(self):
try:
evc_map.remove_gem_port(gem_port)
except Exception as ex:
self.log.exception('evc-map-gem-remove', e=ex)
returnValue('done')
def add_gem_port(self, gem_port, reflow=False):
"""
Add a GEM Port to this ONU
:param gem_port: (GemPort) GEM Port to add
:param reflow: (boolean) If true, force add (used during h/w resync)
:return: (deferred)
"""
if not self._valid:
returnValue('Deleting')
if not reflow and gem_port.gem_id in self._gem_ports:
returnValue('nop')
gem_port.pon_id = self.pon_id
gem_port.onu_id = self.onu_id if self.onu_id is not None else -1
gem_port.intf_id = self.intf_id
# TODO: Currently only support a single UNI. Need to support multiple and track their GEM Ports
# Probably best done by having a UNI-Port class (keep it simple)
self.log.info('add', gem_port=gem_port, reflow=reflow)
self._gem_ports[gem_port.gem_id] = gem_port
try:
results = yield gem_port.add_to_hardware(self.olt.rest_client)
# May need to update flow tables/evc-maps
if gem_port.alloc_id in self._tconts:
from flow.flow_entry import FlowEntry
# GEM-IDs are a sorted list (ascending). First gemport handles downstream traffic
# from flow.flow_entry import FlowEntry
evc_maps = FlowEntry.find_evc_map_flows(self)
for evc_map in evc_maps:
evc_map.add_gem_port(gem_port, reflow=reflow)
except Exception as e:
self.log.exception('gem-port',
gem_port=gem_port,
reflow=reflow,
e=e)
# This can happen with xPON if the ONU has been provisioned, but the PON Discovery
# has not occurred for the ONU. Rely on hw sync to recover
results = 'resync needed'
returnValue(results)
def add_gem_port(self, gem_port, reflow=False):
"""
Add a GEM Port to this ONU
:param gem_port: (GemPort) GEM Port to add
:param reflow: (boolean) If true, force add (used during h/w resync)
:return: (deferred)
"""
if not self._valid:
returnValue(succeed('Deleting'))
if not reflow and gem_port.gem_id in self._gem_ports:
returnValue(succeed)
self._gem_ports[gem_port.gem_id] = gem_port
try:
results = yield gem_port.add_to_hardware(self.olt.rest_client,
self._pon_id, self.onu_id)
# self._resync_flows = True
# May need to update flow tables/evc-maps
if gem_port.alloc_id in self._tconts:
from flow.flow_entry import FlowEntry
# GEM-IDs are a sorted list (ascending). First gemport handles downstream traffic
# from flow.flow_entry import FlowEntry
evc_maps = FlowEntry.find_evc_map_flows(self)
for evc_map in evc_maps:
evc_map.add_gem_port(gem_port, reflow=reflow)
except Exception as e:
self.log.exception('gem-port',
gem_port=gem_port,
reflow=reflow,
e=e)
# This can happen with xPON if the ONU has been provisioned, but the PON Discovery
# has not occurred for the ONU. Rely on hw sync to recover
results = 'resync needed'
returnValue(results)
def sync_flows():
from flow.flow_entry import FlowEntry
reflow, self._resync_flows = self._resync_flows, False
return FlowEntry.sync_flows_by_onu(self, reflow=reflow)