.. index:: pair: group; Test to check device dev_reconfigure
.. _doxid-group__usecases-dev__reconfigure:

Test to check device dev_reconfigure
====================================

.. toctree::
	:hidden:

Reconfigure the device in stopped state and check that RSS configuration are applied and all queues could transmit packets.

#. Check maximum number of Rx/Tx queues

#. Prepare stopped Ethernet device using **nb_rx_queue** Rx queues and **nb_tx_queue** Tx queues

#. Reconfigure the device using **nb_rx_queue_reconf** Rx queues, **nb_tx_queue_reconf** Tx queues and RSS configuration

#. Setup all Rx and Tx queues if **all_queues_reconf** is ``TRUE``, otherwise setup only those queues that were not setup before

#. Start the Ethernet device

#. Prepare templates for test using **rx_tmpl** and **tx_tmpl**

#. Establish effective RSS hash configuration

#. Get RSS Redirection Table. If the corresponding RPC is not supported, use default Redirection Table

#. Ensure that interface is UP on Tester side

#. Change templates to be sure that packets will be received on specific queues using Redirection Table and RSS hash configuration
   
   * Transmit and sniff packet from **tst_if**

#. Receive packets on port **iut_port** on all Rx queues and check that received packets are on corresponding queues

#. Prepare tx_mbufs to be sent and patterns to match it by Tx template

#. Create Ethernet-based CSAP which starts to listen to network immediately

#. Validate and send tx_mbufs from all queues to **iut_port** and make sure that all are sent

#. Receive packets on **tst_if** and check that the received packet matches the sent from **iut_port**

#. Check that no extra packets are received on Tester

#. Check that number of received packets equal to sent

Roman Zhukov `Roman.Zhukov@oktetlabs.ru <mailto:Roman.Zhukov@oktetlabs.ru>`__



.. rubric:: Parameters:

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

	*
		- rx_tmpl

		- Rx traffic template

	*
		- tx_tmpl

		- Tx traffic template

	*
		- nb_rx_queue

		- The number of Rx queues

	*
		- nb_tx_queue

		- The number of Tx queues

	*
		- nb_rx_queue_reconf

		- The number of Rx queues after reconfiguring

	*
		- nb_tx_queue_reconf

		- The number of Tx queues after reconfiguring

	*
		- all_queues_reconf

		- Re-setup all Rx and Tx queues if ``TRUE``, otherwise only new queues