6491dbbece
Added support for AES CMAC hash algorithm with 128-bit key, which has been added in the v0.49 of the IPSec Multi-buffer lib. Signed-off-by: Marko Kovacevic <marko.kovacevic@intel.com> Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
130 lines
4.0 KiB
ReStructuredText
130 lines
4.0 KiB
ReStructuredText
.. SPDX-License-Identifier: BSD-3-Clause
|
|
Copyright(c) 2015-2017 Intel Corporation.
|
|
|
|
AESN-NI Multi Buffer Crypto Poll Mode Driver
|
|
============================================
|
|
|
|
|
|
The AESNI MB PMD (**librte_pmd_aesni_mb**) provides poll mode crypto driver
|
|
support for utilizing Intel multi buffer library, see the white paper
|
|
`Fast Multi-buffer IPsec Implementations on Intel® Architecture Processors
|
|
<https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/fast-multi-buffer-ipsec-implementations-ia-processors-paper.pdf>`_.
|
|
|
|
The AES-NI MB PMD has current only been tested on Fedora 21 64-bit with gcc.
|
|
|
|
Features
|
|
--------
|
|
|
|
AESNI MB PMD has support for:
|
|
|
|
Cipher algorithms:
|
|
|
|
* RTE_CRYPTO_CIPHER_AES128_CBC
|
|
* RTE_CRYPTO_CIPHER_AES192_CBC
|
|
* RTE_CRYPTO_CIPHER_AES256_CBC
|
|
* RTE_CRYPTO_CIPHER_AES128_CTR
|
|
* RTE_CRYPTO_CIPHER_AES192_CTR
|
|
* RTE_CRYPTO_CIPHER_AES256_CTR
|
|
* RTE_CRYPTO_CIPHER_AES_DOCSISBPI
|
|
* RTE_CRYPTO_CIPHER_DES_CBC
|
|
* RTE_CRYPTO_CIPHER_DES_DOCSISBPI
|
|
|
|
Hash algorithms:
|
|
|
|
* RTE_CRYPTO_HASH_MD5_HMAC
|
|
* RTE_CRYPTO_HASH_SHA1_HMAC
|
|
* RTE_CRYPTO_HASH_SHA224_HMAC
|
|
* RTE_CRYPTO_HASH_SHA256_HMAC
|
|
* RTE_CRYPTO_HASH_SHA384_HMAC
|
|
* RTE_CRYPTO_HASH_SHA512_HMAC
|
|
* RTE_CRYPTO_HASH_AES_XCBC_HMAC
|
|
* RTE_CRYPTO_HASH_AES_CMAC
|
|
|
|
AEAD algorithms:
|
|
|
|
* RTE_CRYPTO_AEAD_AES_CCM
|
|
|
|
Limitations
|
|
-----------
|
|
|
|
* Chained mbufs are not supported.
|
|
* Only in-place is currently supported (destination address is the same as source address).
|
|
|
|
|
|
Installation
|
|
------------
|
|
|
|
To build DPDK with the AESNI_MB_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 v0.49, which
|
|
can be downloaded from `<https://github.com/01org/intel-ipsec-mb/archive/v0.49.zip>`_.
|
|
|
|
.. code-block:: console
|
|
|
|
make
|
|
make install
|
|
|
|
As a reference, the following table shows a mapping between the past DPDK versions
|
|
and the Multi-Buffer library version supported by them:
|
|
|
|
.. _table_aesni_mb_versions:
|
|
|
|
.. table:: DPDK and Multi-Buffer library version compatibility
|
|
|
|
============== ============================
|
|
DPDK version Multi-buffer library version
|
|
============== ============================
|
|
2.2 - 16.11 0.43 - 0.44
|
|
17.02 0.44
|
|
17.05 - 17.08 0.45 - 0.48
|
|
17.11 0.47 - 0.48
|
|
18.02 0.48
|
|
18.05 0.49
|
|
============== ============================
|
|
|
|
|
|
Initialization
|
|
--------------
|
|
|
|
In order to enable this virtual crypto PMD, user must:
|
|
|
|
* Build the multi buffer library (explained in Installation section).
|
|
|
|
* Set CONFIG_RTE_LIBRTE_PMD_AESNI_MB=y in config/common_base.
|
|
|
|
To use the PMD in an application, user must:
|
|
|
|
* Call rte_vdev_init("crypto_aesni_mb") within the application.
|
|
|
|
* Use --vdev="crypto_aesni_mb" in the EAL options, which will call rte_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 -l 1 -n 4 --vdev="crypto_aesni_mb,socket_id=0,max_nb_sessions=128" \
|
|
-- -p 1 --cdev SW --chain CIPHER_HASH --cipher_algo "aes-cbc" --auth_algo "sha1-hmac"
|
|
|
|
Extra notes
|
|
-----------
|
|
|
|
For AES Counter mode (AES-CTR), the library supports two different sizes for Initialization
|
|
Vector (IV):
|
|
|
|
* 12 bytes: used mainly for IPSec, as it requires 12 bytes from the user, which internally
|
|
are appended the counter block (4 bytes), which is set to 1 for the first block
|
|
(no padding required from the user)
|
|
|
|
* 16 bytes: when passing 16 bytes, the library will take them and use the last 4 bytes
|
|
as the initial counter block for the first block.
|