Barefoot Runtime gRPC Helper

bfrt-helper is a library for creating gRPC messages and communicating with Intel® Tofino™ devices exposing a Barefoot Runtime gRPC interface.

Note

Disclaimer

  1. This is not a substitute for Intel’s documentation and that in the event of any discrepancies, you should refer to their documentation.

  2. The building of this library requires a copy of the Intel Barefoot Runtime gRPC Protocol Buffers definition, which is included as a part of the Intel Barefoot SDE. This is available under license from Intel and requires the signing of a non-disclosure agreement. We are not able to supply this.

  3. As a consequence of 2, we are unable to discuss Tofino specific specifications, technical data, workarounds, and other errata.

bfrt_data = json.loads(open("bfrt.json").read())
bfrt_info = BfRtInfo(bfrt_data)
bfrt_helper = BfRtHelper(DEVICE_ID, CLIENT_ID, bfrt_info)

write_request = bfrt_helper.create_table_write(
    program_name='forwarder',
    table_name='pipe.PortForward.destination_port',
    key={
        'ig_intr_md.ingress_port': Exact(PortId(INGRESS_PORT))
    },
    action_name='PortForward.forward',
    action_params={
        'egress_port': PortId(EGRESS_PORT),
    })

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