924e84f873
This patch provides the initial implementation of the AES-NI multi-buffer based crypto poll mode driver using DPDK's new cryptodev framework. This PMD is dependent on Intel's multibuffer library, see the whitepaper "Fast Multi-buffer IPsec Implementations on Intel® Architecture Processors", see ref 1 for details on the library's design and ref 2 to download the library itself. This initial implementation is limited to supporting the chained operations of "hash then cipher" or "cipher then hash" for the following cipher and hash algorithms: Cipher algorithms: - RTE_CRYPTO_CIPHER_AES_CBC (with 128-bit, 192-bit and 256-bit keys supported) Authentication algorithms: - RTE_CRYPTO_AUTH_SHA1_HMAC - RTE_CRYPTO_AUTH_SHA256_HMAC - RTE_CRYPTO_AUTH_SHA512_HMAC - RTE_CRYPTO_AUTH_AES_XCBC_MAC Important Note: Due to the fact that the multi-buffer library is designed for accelerating IPsec crypto operation, the digest's generated for the HMAC functions are truncated to lengths specified by IPsec RFC's, ie RFC2404 for using HMAC-SHA-1 with IPsec specifies that the digest is truncate from 20 to 12 bytes. Build instructions: To build DPDK with the AESNI_MB_PMD the user is required to download (ref 2) and compile the multi-buffer library on there system before building DPDK. The environmental variable AESNI_MULTI_BUFFER_LIB_PATH must be exported with the path where you extracted and built the multi buffer library and finally set CONFIG_RTE_LIBRTE_PMD_AESNI_MB=y in config/common_linuxapp. Current status: It's doesn't support crypto operation across chained mbufs, or cipher only or hash only operations. ref 1: https://www-ssl.intel.com/content/www/us/en/intelligent-systems/intel-technology/fast-multi-buffer-ipsec-implementations-ia-processors-p ref 2: https://downloadcenter.intel.com/download/22972 Signed-off-by: Declan Doherty <declan.doherty@intel.com> Acked-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
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3.4 KiB
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86 lines
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.. BSD LICENSE
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Copyright(c) 2015 Intel Corporation. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name of Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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AESN-NI Multi Buffer Crytpo Poll Mode Driver
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============================================
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The AESNI MB PMD (**librte_pmd_aesni_mb**) provides poll mode crypto driver
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support for utilising Intel multi buffer library, see the white paper
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`Fast Multi-buffer IPsec Implementations on Intel® Architecture Processors
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<https://www-ssl.intel.com/content/www/us/en/intelligent-systems/intel-technology/fast-multi-buffer-ipsec-implementations-ia-processors-paper.html?wapkw=multi+buffer>`_.
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The AES-NI MB PMD has current only been tested on Fedora 21 64-bit with gcc.
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Features
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--------
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AESNI MB PMD has support for:
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Cipher algorithms:
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* RTE_CRYPTO_SYM_CIPHER_AES128_CBC
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* RTE_CRYPTO_SYM_CIPHER_AES256_CBC
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* RTE_CRYPTO_SYM_CIPHER_AES512_CBC
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Hash algorithms:
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* RTE_CRYPTO_SYM_HASH_SHA1_HMAC
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* RTE_CRYPTO_SYM_HASH_SHA256_HMAC
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* RTE_CRYPTO_SYM_HASH_SHA512_HMAC
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Limitations
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-----------
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* Chained mbufs are not supported.
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* Hash only is not supported.
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* Cipher only is not supported.
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* Only in-place is currently supported (destination address is the same as source address).
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* Only supports session-oriented API implementation (session-less APIs are not supported).
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* Not performance tuned.
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Installation
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------------
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To build DPDK with the AESNI_MB_PMD the user is required to download the mult-
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buffer library from `here <https://downloadcenter.intel.com/download/22972>`_
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and compile it on their user system before building DPDK. When building the
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multi-buffer library it is necessary to have YASM package installed and also
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requires the overriding of YASM path when building, as a path is hard coded in
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the Makefile of the release package.
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.. code-block:: console
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make YASM=/usr/bin/yasm
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The environmental variable
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AESNI_MULTI_BUFFER_LIB_PATH must be exported with the path where you extracted
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and built the multi buffer library and finally set
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CONFIG_RTE_LIBRTE_PMD_AESNI_MB=y in config/common_linuxapp.
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