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+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright(c) 2010-2014 Intel Corporation.
Packet Distributor Library
==========================
and a set of worker lcores which are responsible for receiving the packets from the distributor and operating on them.
The model of operation is shown in the diagram below.
-|packet_distributor1|
+.. figure:: img/packet_distributor1.*
+
+ Packet Distributor mode of operation
+
+There are two modes of operation of the API in the distributor library,
+one which sends one packet at a time to workers using 32-bits for flow_id,
+and an optimized mode which sends bursts of up to 8 packets at a time to workers, using 15 bits of flow_id.
+The mode is selected by the type field in the ``rte_distributor_create()`` function.
Distributor Core Operation
--------------------------
Using the process and returned_pkts API, the following application workflow can be used,
while allowing packet order within a packet flow -- identified by a tag -- to be maintained.
-.. image41_png has been renamed
-|packet_distributor2|
+.. figure:: img/packet_distributor2.*
+
+ Application workflow
+
The flush and clear_returns API calls, mentioned previously,
are likely of less use that the process and returned_pkts APIS, and are principally provided to aid in unit testing of the library.
i.e. to save power at times of lighter load,
it is possible to have a worker stop processing packets by calling "rte_distributor_return_pkt()" to indicate that
it has finished the current packet and does not want a new one.
-
-.. |packet_distributor1| image:: img/packet_distributor1.*
-
-.. |packet_distributor2| image:: img/packet_distributor2.*