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diff --git a/doc/guides/cryptodevs/zuc.rst b/doc/guides/cryptodevs/zuc.rst new file mode 100644 index 00000000..38d5068a --- /dev/null +++ b/doc/guides/cryptodevs/zuc.rst @@ -0,0 +1,111 @@ +.. 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. + +ZUC Crypto Poll Mode Driver +=========================== + +The ZUC PMD (**librte_pmd_zuc**) provides poll mode crypto driver +support for utilizing Intel Libsso library, which implements F8 and F9 functions +for ZUC EEA3 cipher and EIA3 hash algorithms. + +Features +-------- + +ZUC PMD has support for: + +Cipher algorithm: + +* RTE_CRYPTO_CIPHER_ZUC_EEA3 + +Authentication algorithm: + +* RTE_CRYPTO_AUTH_ZUC_EIA3 + +Limitations +----------- + +* Chained mbufs are not supported. +* ZUC (EIA3) supported only if hash offset field is byte-aligned. +* ZUC (EEA3) supported only if cipher length, cipher offset fields are byte-aligned. +* ZUC PMD cannot be built as a shared library, due to limitations in + in the underlying library. + + +Installation +------------ + +To build DPDK with the ZUC_PMD the user is required to download +the export controlled ``libsso_zuc`` 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 "ZUC Library" link, to download the library. +After downloading the library, the user needs to unpack and compile it +on their system before building DPDK:: + + make + +Initialization +-------------- + +In order to enable this virtual crypto PMD, user must: + +* Export the environmental variable LIBSSO_ZUC_PATH with the path where + the library was extracted (zuc folder). + +* Build the LIBSSO_ZUC library (explained in Installation section). + +* Build DPDK as follows: + +.. code-block:: console + + make config T=x86_64-native-linuxapp-gcc + sed -i 's,\(CONFIG_RTE_LIBRTE_PMD_ZUC\)=n,\1=y,' build/.config + make + +To use the PMD in an application, user must: + +* Call rte_eal_vdev_init("crypto_zuc") within the application. + +* Use --vdev="crypto_zuc" in the EAL options, which will call rte_eal_vdev_init() internally. + +The following parameters (all optional) can be provided in the previous two calls: + +* socket_id: Specify the socket where the memory for the device is going to be allocated + (by default, socket_id will be the socket where the core that is creating the PMD is running on). + +* max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default). + +* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default). + +Example: + +.. code-block:: console + + ./l2fwd-crypto -c 40 -n 4 --vdev="crypto_zuc,socket_id=1,max_nb_sessions=128" |