.. index:: pair: group; Rx behavior with number of packets greater than descriptors number
.. _doxid-group__usecases-rx__ring__wrap:

Rx behavior with number of packets greater than descriptors number
==================================================================

.. toctree::
	:hidden:

	group_usecases-rx_ring_wrap-run.rst

Make sure that driver can correctly refill Rx queue desc ring

#. Prepare default config and mbuf pool

#. Prepare ``TEST_ETHDEV_INITIALIZED`` state

#. Check Rx queue number of descriptors limitations
   
   * Set Rx queue number of descriptors

#. Prepare ``TEST_ETHDEV_STARTED`` state

#. Check number of descriptors in Rx queue info if supported

#. Prepare **template** for test

#. Ensure that interface is UP on Tester side

#. Transmit and sniff nb_packets packets from **tst_if**

#. Receive packets on **iut_port**

Daniil Byshenko `Daniil.Byshenko@oktetlabs.ru <mailto:Daniil.Byshenko@oktetlabs.ru>`__



.. rubric:: Parameters:

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

	*
		- template

		- Traffic template

	*
		- nb_rxd

		- Rx descriptors number

	*
		- nb_wrap

		- Number of ring refilling

|	:ref:`rx_ring_wrap<doxid-group__usecases-rx__ring__wrap-run>`