-.. BSD LICENSE
- Copyright(c) 2016 Intel Corporation. All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright(c) 2016-2019 Intel Corporation.
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.
+The SNOW3G PMD (**librte_snow3g_zuc**) provides poll mode crypto driver support for
+utilizing `Intel IPSec Multi-buffer library <https://github.com/01org/intel-ipsec-mb>`_
+which implements F8 and F8 functions for SNOW 3G UEA2 cipher and UIA2 hash algorithms.
Features
--------
Cipher algorithm:
-* RTE_CRYPTO_SYM_CIPHER_SNOW3G_UEA2
+* RTE_CRYPTO_CIPHER_SNOW3G_UEA2
Authentication algorithm:
-* RTE_CRYPTO_SYM_AUTH_SNOW3G_UIA2
+* RTE_CRYPTO_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.
+* SNOW 3G (UIA2) supported only if hash offset field is byte-aligned.
+* In-place bit-level operations for SNOW 3G (UEA2) are not supported
+ (if length and/or offset of data to be ciphered is not byte-aligned).
Installation
------------
-To build DPDK with the KASUMI_PMD the user is required to download
-the export controlled ``libsso_snow3g`` library, by requesting it from
-`<https://networkbuilders.intel.com/network-technologies/dpdk>`_.
-Once approval has been granted, the user needs to log in
-`<https://networkbuilders.intel.com/dpdklogin>`_
-and click on "Snow3G Bit Stream crypto library" link, to download the library.
+To build DPDK with the SNOW3G_PMD the user is required to download the multi-buffer
+library from `here <https://github.com/01org/intel-ipsec-mb>`_
+and compile it on their user system before building DPDK.
+The latest version of the library supported by this PMD is v0.53, which
+can be downloaded from `<https://github.com/01org/intel-ipsec-mb/archive/v0.53.zip>`_.
+
After downloading the library, the user needs to unpack and compile it
-on their system before building DPDK::
+on their system before building DPDK:
+
+.. code-block:: console
+
+ make
+ make install
+
+As a reference, the following table shows a mapping between the past DPDK versions
+and the external crypto libraries supported by them:
+
+.. _table_snow3g_versions:
+
+.. table:: DPDK and external crypto library version compatibility
+
+ ============= ================================
+ DPDK version Crypto library version
+ ============= ================================
+ 16.04 - 19.11 LibSSO SNOW3G
+ 20.02+ Multi-buffer library 0.53
+ ============= ================================
- make snow3G
Initialization
--------------
In order to enable this virtual crypto PMD, user must:
-* Export the environmental variable LIBSSO_SNOW3G_PATH with the path where
- the library was extracted (snow3g folder).
+* Build the multi buffer library (explained in Installation section).
-* Build the LIBSSO_SNOW3G library (explained in Installation section).
+* Build DPDK as follows:
+
+.. code-block:: console
-* Set CONFIG_RTE_LIBRTE_PMD_SNOW3G=y in config/common_base.
+ make config T=x86_64-native-linux-gcc
+ sed -i 's,\(CONFIG_RTE_LIBRTE_PMD_SNOW3G\)=n,\1=y,' build/.config
+ make
To use the PMD in an application, user must:
-* Call rte_eal_vdev_init("cryptodev_snow3g_pmd") within the application.
+* Call rte_vdev_init("crypto_snow3g") within the application.
-* Use --vdev="cryptodev_snow3g_pmd" in the EAL options, which will call rte_eal_vdev_init() internally.
+* Use --vdev="crypto_snow3g" in the EAL options, which will call rte_vdev_init() internally.
The following parameters (all optional) can be provided in the previous two calls:
.. code-block:: console
- ./l2fwd-crypto -c 40 -n 4 --vdev="cryptodev_snow3g_pmd,socket_id=1,max_nb_sessions=128"
+ ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_snow3g,socket_id=0,max_nb_sessions=128" \
+ -- -p 1 --cdev SW --chain CIPHER_ONLY --cipher_algo "snow3g-uea2"
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