.. index:: pair: group; Two Rx rules and AF_XDP sockets
.. _doxid-group__rss-af__xdp__two__rules:

Two Rx rules and AF_XDP sockets
===============================

.. toctree::
	:hidden:

Check that two AF_XDP sockets can work simultaneously each receiving packets from a different Rx queue specified by a Rx classification rule.

#. From IUT TA pin XSK BPF map of **rxq_stats** XDP program to a file. From IUT RPC server open that file to obtain file descriptor of the map.

#. Choose two different Rx queues: **queue1** and **queue2**.

#. Construct **iut_addr1** with address taken from **iut_addr** and a random port such that packets sent to it from **tst_addr** will not be received by **queue1** by default.

#. Construct **iut_addr2** with address taken from **iut_addr** and a random port such that packets sent to it from **tst_addr** will not be received by **queue2** by default.

#. Create UDP socket on Tester, bind it to **tst_addr**.

#. Create two AF_XDP sockets on IUT, the first one bound to **queue1**, and the second one bound to **queue2**.

#. Add Rx rule on IUT to redirect packets sent from **tst_addr** to **iut_addr1** to Rx queue **queue1**.

#. Add Rx rule on IUT to redirect packets sent from **tst_addr** to **iut_addr2** to Rx queue **queue2**.

#. Configure **rxq_stats** program on IUT to process only packets going from **tst_addr** to **iut_addr** (accepting any destination port).

#. Check that the first AF_XDP socket can receive and reply UDP packet sent from **tst_addr** to **iut_addr1**.

#. Check that the second AF_XDP socket can receive and reply UDP packet sent from **tst_addr** to **iut_addr2**.



.. rubric:: Parameters:

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

	*
		- env

		- 
		  Testing environment:
		  
		  * :ref:`env.peer2peer <doxid-group__env-peer2peer>`
		  
		  * :ref:`env.peer2peer_ipv6 <doxid-group__env-peer2peer__ipv6>`

	*
		- copy_mode

		- 
		  XDP copy mode:
		  
		  * ``none`` (kernel tries zero-copy, falls back to copy mode if it fails)
		  
		  * ``copy``
		  
		  * ``zerocopy``