1 .. SPDX-License-Identifier: BSD-3-Clause
2 Copyright(c) 2015-2017 Intel Corporation.
4 AESN-NI Multi Buffer Crypto Poll Mode Driver
5 ============================================
8 The AESNI MB PMD (**librte_pmd_aesni_mb**) provides poll mode crypto driver
9 support for utilizing Intel multi buffer library, see the white paper
10 `Fast Multi-buffer IPsec Implementations on IntelĀ® Architecture Processors
11 <https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/fast-multi-buffer-ipsec-implementations-ia-processors-paper.pdf>`_.
13 The AES-NI MB PMD has current only been tested on Fedora 21 64-bit with gcc.
18 AESNI MB PMD has support for:
22 * RTE_CRYPTO_CIPHER_AES128_CBC
23 * RTE_CRYPTO_CIPHER_AES192_CBC
24 * RTE_CRYPTO_CIPHER_AES256_CBC
25 * RTE_CRYPTO_CIPHER_AES128_CTR
26 * RTE_CRYPTO_CIPHER_AES192_CTR
27 * RTE_CRYPTO_CIPHER_AES256_CTR
28 * RTE_CRYPTO_CIPHER_AES_DOCSISBPI
29 * RTE_CRYPTO_CIPHER_DES_CBC
30 * RTE_CRYPTO_CIPHER_DES_DOCSISBPI
34 * RTE_CRYPTO_HASH_MD5_HMAC
35 * RTE_CRYPTO_HASH_SHA1_HMAC
36 * RTE_CRYPTO_HASH_SHA224_HMAC
37 * RTE_CRYPTO_HASH_SHA256_HMAC
38 * RTE_CRYPTO_HASH_SHA384_HMAC
39 * RTE_CRYPTO_HASH_SHA512_HMAC
40 * RTE_CRYPTO_HASH_AES_XCBC_HMAC
44 * RTE_CRYPTO_AEAD_AES_CCM
49 * Chained mbufs are not supported.
50 * Only in-place is currently supported (destination address is the same as source address).
56 To build DPDK with the AESNI_MB_PMD the user is required to download the multi-buffer
57 library from `here <https://github.com/01org/intel-ipsec-mb>`_
58 and compile it on their user system before building DPDK.
59 The latest version of the library supported by this PMD is v0.48, which
60 can be downloaded from `<https://github.com/01org/intel-ipsec-mb/archive/v0.48.zip>`_.
62 .. code-block:: console
66 As a reference, the following table shows a mapping between the past DPDK versions
67 and the Multi-Buffer library version supported by them:
69 .. _table_aesni_mb_versions:
71 .. table:: DPDK and Multi-Buffer library version compatibility
73 ============== ============================
74 DPDK version Multi-buffer library version
75 ============== ============================
76 2.2 - 16.11 0.43 - 0.44
78 17.05 - 17.08 0.45 - 0.48
81 ============== ============================
87 In order to enable this virtual crypto PMD, user must:
89 * Export the environmental variable AESNI_MULTI_BUFFER_LIB_PATH with the path where
90 the library was extracted.
92 * Build the multi buffer library (explained in Installation section).
94 * Set CONFIG_RTE_LIBRTE_PMD_AESNI_MB=y in config/common_base.
96 To use the PMD in an application, user must:
98 * Call rte_vdev_init("crypto_aesni_mb") within the application.
100 * Use --vdev="crypto_aesni_mb" in the EAL options, which will call rte_vdev_init() internally.
102 The following parameters (all optional) can be provided in the previous two calls:
104 * socket_id: Specify the socket where the memory for the device is going to be allocated
105 (by default, socket_id will be the socket where the core that is creating the PMD is running on).
107 * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
109 * max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
113 .. code-block:: console
115 ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_aesni_mb,socket_id=0,max_nb_sessions=128" \
116 -- -p 1 --cdev SW --chain CIPHER_HASH --cipher_algo "aes-cbc" --auth_algo "sha1-hmac"
121 For AES Counter mode (AES-CTR), the library supports two different sizes for Initialization
124 * 12 bytes: used mainly for IPSec, as it requires 12 bytes from the user, which internally
125 are appended the counter block (4 bytes), which is set to 1 for the first block
126 (no padding required from the user)
128 * 16 bytes: when passing 16 bytes, the library will take them and use the last 4 bytes
129 as the initial counter block for the first block.