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SNOW 3G Crypto Poll Mode Driver
===============================

The SNOW 3G PMD (**librte_pmd_snow3g**) provides poll mode crypto driver
support for utilizing Intel Libsso library, which implements F8 and F9 functions
for SNOW 3G UEA2 cipher and UIA2 hash algorithms.

Features
--------

SNOW 3G PMD has support for:

Cipher algorithm:

* RTE_CRYPTO_SYM_CIPHER_SNOW3G_UEA2

Authentication algorithm:

* RTE_CRYPTO_SYM_AUTH_SNOW3G_UIA2

Limitations
-----------

* Chained mbufs are not supported.
* Snow3g(UEA2) supported only if cipher length, cipher offset fields are byte-aligned.
* Snow3g(UIA2) supported only if hash length, hash offset fields are byte-aligned.

Installation
------------

To build DPDK with the SNOW3G_PMD the user is required to get
the export controlled libsso library, sending a request to
`DPDKUser_software_access@intel.com`, and compile it
on their user system before building DPDK:

.. code-block:: console

	make -f Makefile_snow3g

The environmental variable LIBSSO_PATH must be exported with the path
where you extracted and built the libsso library and finally set
CONFIG_RTE_LIBRTE_PMD_SNOW3G=y in config/common_base.