.. index:: pair: group; Update the Redirection Table of RSS test
.. _doxid-group__usecases-rss__reta__update:

Update the Redirection Table of RSS test
========================================

.. toctree::
	:hidden:

	group_usecases-rss_reta_update-run.rst

Update the Redirection Table of RSS

Make sure that it is possible to update the RSS RETA. Besides, check that after the port restarting, the information about RSS RETA doesn't change.

#. Initialise the port in order to obtain RSS capabilities

#. Check if required number of Rx queues is supported

#. Setup RX configuration to work in RSS mode

#. Prepare desired RSS hash configuration

#. Start the Ethernet device

#. Generate a new RETA randomly

#. Query the RETA and check that the new RETA was successfully updated. Skip this step if RETA query operation is not supported

#. Prepare a packet by **tmpl** to check the RETA updating by sending the packet

#. Establish effective RSS hash configuration

#. Calculate the packet hash using the Toeplitz function

#. Determine the queue index by means of the hash

#. Ensure that interface is UP on Tester side

#. Transmit the packet from **tst_if**

#. Try to receive the packet on **expected_queue** Make sure that the packet received matches the packet sent

#. Restart the port **uit_port**

#. Get the current configuration of RSS RETA on port **iut_port**. Check that retrieved information matches information from **reta_conf** Skip this step if RETA query operation is not supported



.. rubric:: Parameters:

.. list-table::
	:widths: 20 80

	*
		- tmpl

		- The template of packet

	*
		- nb_rx_queues

		- The number of RX queues

|	:ref:`rss_reta_update<doxid-group__usecases-rss__reta__update-run>`