1.. SPDX-License-Identifier: BSD-3-Clause 2 Copyright 2017 NXP 3 4 5 6NXP DPAA CAAM (DPAA_SEC) 7======================== 8 9The DPAA_SEC PMD provides poll mode crypto driver support for NXP DPAA CAAM 10hardware accelerator. 11 12Architecture 13------------ 14 15SEC is the SOC's security engine, which serves as NXP's latest cryptographic 16acceleration and offloading hardware. It combines functions previously 17implemented in separate modules to create a modular and scalable acceleration 18and assurance engine. It also implements block encryption algorithms, stream 19cipher algorithms, hashing algorithms, public key algorithms, run-time 20integrity checking, and a hardware random number generator. SEC performs 21higher-level cryptographic operations than previous NXP cryptographic 22accelerators. This provides significant improvement to system level performance. 23 24DPAA_SEC is one of the hardware resource in DPAA Architecture. More information 25on DPAA Architecture is described in :ref:`dpaa_overview`. 26 27DPAA_SEC PMD is one of DPAA drivers which interacts with QBMAN to create, 28configure and destroy the device instance using queue pair with CAAM portal. 29 30DPAA_SEC PMD also uses some of the other hardware resources like buffer pools, 31queues, queue portals to store and to enqueue/dequeue data to the hardware SEC. 32 33Implementation 34-------------- 35 36SEC provides platform assurance by working with SecMon, which is a companion 37logic block that tracks the security state of the SOC. SEC is programmed by 38means of descriptors (not to be confused with frame descriptors (FDs)) that 39indicate the operations to be performed and link to the message and 40associated data. SEC incorporates two DMA engines to fetch the descriptors, 41read the message data, and write the results of the operations. The DMA 42engine provides a scatter/gather capability so that SEC can read and write 43data scattered in memory. SEC may be configured by means of software for 44dynamic changes in byte ordering. The default configuration for this version 45of SEC is little-endian mode. 46 47Features 48-------- 49 50The DPAA PMD has support for: 51 52Cipher algorithms: 53 54* ``RTE_CRYPTO_CIPHER_3DES_CBC`` 55* ``RTE_CRYPTO_CIPHER_AES128_CBC`` 56* ``RTE_CRYPTO_CIPHER_AES192_CBC`` 57* ``RTE_CRYPTO_CIPHER_AES256_CBC`` 58* ``RTE_CRYPTO_CIPHER_AES128_CTR`` 59* ``RTE_CRYPTO_CIPHER_AES192_CTR`` 60* ``RTE_CRYPTO_CIPHER_AES256_CTR`` 61 62Hash algorithms: 63 64* ``RTE_CRYPTO_AUTH_SHA1_HMAC`` 65* ``RTE_CRYPTO_AUTH_SHA224_HMAC`` 66* ``RTE_CRYPTO_AUTH_SHA256_HMAC`` 67* ``RTE_CRYPTO_AUTH_SHA384_HMAC`` 68* ``RTE_CRYPTO_AUTH_SHA512_HMAC`` 69* ``RTE_CRYPTO_AUTH_MD5_HMAC`` 70 71AEAD algorithms: 72 73* ``RTE_CRYPTO_AEAD_AES_GCM`` 74 75Supported DPAA SoCs 76-------------------- 77 78* LS1046A/LS1026A 79* LS1043A/LS1023A 80 81Whitelisting & Blacklisting 82--------------------------- 83 84For blacklisting a DPAA device, following commands can be used. 85 86 .. code-block:: console 87 88 <dpdk app> <EAL args> -b "dpaa_bus:dpaa-secX" -- ... 89 e.g. "dpaa_bus:dpaa-sec0" 90 91 or to disable all 4 SEC devices 92 -b "dpaa_sec:dpaa-sec0" -b "dpaa_sec:dpaa-sec1" -b "dpaa_sec:dpaa-sec2" -b "dpaa_sec:dpaa-sec3" 93 94Limitations 95----------- 96 97* Hash followed by Cipher mode is not supported 98* Only supports the session-oriented API implementation (session-less APIs are not supported). 99 100Prerequisites 101------------- 102 103DPAA_SEC driver has similar pre-requisites as described in :ref:`dpaa_overview`. 104 105See :doc:`../platform/dpaa` for setup information 106 107 108- Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup the basic DPDK environment. 109 110Pre-Installation Configuration 111------------------------------ 112 113Config File Options 114~~~~~~~~~~~~~~~~~~~ 115 116Basic DPAA config file options are described in :ref:`dpaa_overview`. 117In addition to those, the following options can be modified in the ``config`` file 118to enable DPAA_SEC PMD. 119 120Please note that enabling debugging options may affect system performance. 121 122* ``CONFIG_RTE_LIBRTE_PMD_DPAA_SEC`` (default ``n``) 123 By default it is only enabled in defconfig_arm64-dpaa-* config. 124 Toggle compilation of the ``librte_pmd_dpaa_sec`` driver. 125 126Installations 127------------- 128To compile the DPAA_SEC PMD for Linux arm64 gcc target, run the 129following ``make`` command: 130 131.. code-block:: console 132 133 cd <DPDK-source-directory> 134 make config T=arm64-dpaa-linuxapp-gcc install 135 136Enabling logs 137------------- 138 139For enabling logs, use the following EAL parameter: 140 141.. code-block:: console 142 143 ./your_crypto_application <EAL args> --log-level=pmd.crypto.dpaa:<level> 144 145Using ``pmd.crypto.dpaa`` as log matching criteria, all Crypto PMD logs can be 146enabled which are lower than logging ``level``. 147