CC: John McNamara <john.mcnam...@intel.com> Signed-off-by: Jerin Jacob <jerin.ja...@caviumnetworks.com> Signed-off-by: Guduri Prathyusha <gprathyu...@caviumnetworks.com> --- doc/guides/tools/img/eventdev_order_queue_test.svg | 1673 ++++++++++++++++++++ doc/guides/tools/testeventdev.rst | 83 + 2 files changed, 1756 insertions(+) create mode 100644 doc/guides/tools/img/eventdev_order_queue_test.svg
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Verify the ingress order maintenance. +#. Verify the exclusive(atomic) access to given atomic flow per eventdev port. + +.. _table_eventdev_order_queue_test: + +.. table:: Order queue test eventdev configuration. + + +---+--------------+----------------+------------------------+ + | # | Items | Value | Comments | + | | | | | + +===+==============+================+========================+ + | 1 | nb_queues | 2 | q0(ordered), q1(atomic)| + | | | | | + +---+--------------+----------------+------------------------+ + | 2 | nb_producers | 1 | | + | | | | | + +---+--------------+----------------+------------------------+ + | 3 | nb_workers | >= 1 | | + | | | | | + +---+--------------+----------------+------------------------+ + | 4 | nb_ports | nb_workers + | Workers use port 0 to | + | | | 1 | port n. Producer uses | + | | | | port n+1 | + +---+--------------+----------------+------------------------+ + +.. _figure_eventdev_order_queue_test: + +.. figure:: img/eventdev_order_queue_test.* + + order queue test operation. + +The order queue test configures the eventdev with two queues and an event +producer to inject the events to q0(ordered) queue. Both q0(ordered) and +q1(atomic) are linked to all the workers. + +The event producer maintains a sequence number per flow and injects the events +to the ordered queue. The worker receives the events from ordered queue and +forwards to atomic queue. Since the events from an ordered queue can be +processed in parallel on the different workers, the ingress order of events +might have changed on the downsteam atomic queue enqueue. On enqueue to the +atomic queue, the eventdev PMD driver reorders the event to the original +ingress order(i.e producer ingress order). + +When the event is dequeued from the atomic queue by the worker, this test +verifies the expected sequence number of associated event per flow by comparing +the free running expected sequence number per flow. + +Application options +^^^^^^^^^^^^^^^^^^^ + +Supported application command line options are following:: + + --verbose + --dev + --test + --socket_id + --pool_sz + --plcore + --wlcores + --nb_flows + --nb_pkts + --worker_deq_depth + +Example +^^^^^^^ + +Example command to run order queue test: + +.. code-block:: console + + sudo build/app/dpdk-test-eventdev --vdev=event_sw0 -- --test=order_queue --plcore 1 --wlcores 2,3 + + + -- 2.13.0
