doc: describe dynamic logging format

[dpdk.git] / doc / guides / prog_guide / packet_distrib_lib.rst

diff --git a/doc/guides/prog_guide/packet_distrib_lib.rst b/doc/guides/prog_guide/packet_distrib_lib.rst
index 767accc..ee2b1a6 100644 (file)
--- a/doc/guides/prog_guide/packet_distrib_lib.rst
+++ b/doc/guides/prog_guide/packet_distrib_lib.rst
@@ -38,7 +38,14 @@ which is responsible for load balancing or distributing packets,
 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
 --------------------------
@@ -91,9 +98,11 @@ No packet ordering guarantees are made about packets which do not share a common
 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.
@@ -110,7 +119,3 @@ Since it may be desirable to vary the number of worker cores, depending on the t
 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.*