3d4a2f5748
Summary of changes: - Adding the p4runtime starter code and solution. - Adding NO_P4, BMV2_SWITCH_EXE and P4C_ARGS to utils/Makefile - Updated p4runtime/Makefile to use variables - Adding conversion functions for match and action param values - Separating P4Info and P4Runtime libraries - Updating global README and adding p4runtime/README.md - Disabling screen saver on VM GUI - Adding desktop icons for Terminal, Wireshare and Sublime Text - Updating topo.pdf -> png for Markdown viewing in basic_tunnel and p4runtime READMEs
89 lines
3.3 KiB
Python
89 lines
3.3 KiB
Python
# Copyright 2017-present Open Networking Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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from abc import abstractmethod
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import grpc
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from p4 import p4runtime_pb2
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from p4.tmp import p4config_pb2
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class SwitchConnection(object):
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def __init__(self, name, address='127.0.0.1:50051', device_id=0):
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self.name = name
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self.address = address
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self.device_id = device_id
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self.p4info = None
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self.channel = grpc.insecure_channel(self.address)
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self.client_stub = p4runtime_pb2.P4RuntimeStub(self.channel)
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@abstractmethod
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def buildDeviceConfig(self, **kwargs):
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return p4config_pb2.P4DeviceConfig()
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def SetForwardingPipelineConfig(self, p4info, dry_run=False, **kwargs):
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device_config = self.buildDeviceConfig(**kwargs)
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request = p4runtime_pb2.SetForwardingPipelineConfigRequest()
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config = request.configs.add()
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config.device_id = self.device_id
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config.p4info.CopyFrom(p4info)
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config.p4_device_config = device_config.SerializeToString()
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request.action = p4runtime_pb2.SetForwardingPipelineConfigRequest.VERIFY_AND_COMMIT
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if dry_run:
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print "P4 Runtime SetForwardingPipelineConfig:", request
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else:
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self.client_stub.SetForwardingPipelineConfig(request)
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def WriteTableEntry(self, table_entry, dry_run=False):
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request = p4runtime_pb2.WriteRequest()
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request.device_id = self.device_id
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update = request.updates.add()
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update.type = p4runtime_pb2.Update.INSERT
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update.entity.table_entry.CopyFrom(table_entry)
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if dry_run:
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print "P4 Runtime Write:", request
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else:
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self.client_stub.Write(request)
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def ReadTableEntries(self, table_id=None, dry_run=False):
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request = p4runtime_pb2.ReadRequest()
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request.device_id = self.device_id
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entity = request.entities.add()
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table_entry = entity.table_entry
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if table_id is not None:
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table_entry.table_id = table_id
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else:
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table_entry.table_id = 0
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if dry_run:
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print "P4 Runtime Read:", request
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else:
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for response in self.client_stub.Read(request):
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yield response
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def ReadCounters(self, counter_id=None, index=None, dry_run=False):
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request = p4runtime_pb2.ReadRequest()
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request.device_id = self.device_id
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entity = request.entities.add()
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counter_entry = entity.counter_entry
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if counter_id is not None:
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counter_entry.counter_id = counter_id
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else:
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counter_entry.counter_id = 0
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if index is not None:
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counter_entry.index = index
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if dry_run:
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print "P4 Runtime Read:", request
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else:
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for response in self.client_stub.Read(request):
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yield response
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