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30 AESN-NI Multi Buffer Crytpo Poll Mode Driver
31 ============================================
34 The AESNI MB PMD (**librte_pmd_aesni_mb**) provides poll mode crypto driver
35 support for utilizing Intel multi buffer library, see the white paper
36 `Fast Multi-buffer IPsec Implementations on IntelĀ® Architecture Processors
37 <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>`_.
39 The AES-NI MB PMD has current only been tested on Fedora 21 64-bit with gcc.
44 AESNI MB PMD has support for:
48 * RTE_CRYPTO_SYM_CIPHER_AES128_CBC
49 * RTE_CRYPTO_SYM_CIPHER_AES192_CBC
50 * RTE_CRYPTO_SYM_CIPHER_AES256_CBC
51 * RTE_CRYPTO_SYM_CIPHER_AES128_CTR
52 * RTE_CRYPTO_SYM_CIPHER_AES192_CTR
53 * RTE_CRYPTO_SYM_CIPHER_AES256_CTR
57 * RTE_CRYPTO_SYM_HASH_SHA1_HMAC
58 * RTE_CRYPTO_SYM_HASH_SHA256_HMAC
59 * RTE_CRYPTO_SYM_HASH_SHA512_HMAC
64 * Chained mbufs are not supported.
65 * Hash only is not supported.
66 * Cipher only is not supported.
67 * Only in-place is currently supported (destination address is the same as source address).
68 * Only supports session-oriented API implementation (session-less APIs are not supported).
69 * Not performance tuned.
74 To build DPDK with the AESNI_MB_PMD the user is required to download the mult-
75 buffer library from `here <https://downloadcenter.intel.com/download/22972>`_
76 and compile it on their user system before building DPDK. When building the
77 multi-buffer library it is necessary to have YASM package installed and also
78 requires the overriding of YASM path when building, as a path is hard coded in
79 the Makefile of the release package.
81 .. code-block:: console
83 make YASM=/usr/bin/yasm
88 In order to enable this virtual crypto PMD, user must:
90 * Export the environmental variable AESNI_MULTI_BUFFER_LIB_PATH with the path where
91 the library was extracted.
93 * Build the multi buffer library (explained in Installation section).
95 * Set CONFIG_RTE_LIBRTE_PMD_AESNI_MB=y in config/common_base.
97 To use the PMD in an application, user must:
99 * Call rte_eal_vdev_init("cryptodev_aesni_mb_pmd") within the application.
101 * Use --vdev="cryptodev_aesni_mb_pmd" in the EAL options, which will call rte_eal_vdev_init() internally.
103 The following parameters (all optional) can be provided in the previous two calls:
105 * socket_id: Specify the socket where the memory for the device is going to be allocated
106 (by default, socket_id will be the socket where the core that is creating the PMD is running on).
108 * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
110 * max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
114 .. code-block:: console
116 ./l2fwd-crypto -c 40 -n 4 --vdev="cryptodev_aesni_mb_pmd,socket_id=1,max_nb_sessions=128"