1 .. SPDX-License-Identifier: BSD-3-Clause
6 NXP DPAA2 CAAM (DPAA2_SEC)
7 ==========================
9 The DPAA2_SEC PMD provides poll mode crypto driver support for NXP DPAA2 CAAM
15 SEC is the SOC's security engine, which serves as NXP's latest cryptographic
16 acceleration and offloading hardware. It combines functions previously
17 implemented in separate modules to create a modular and scalable acceleration
18 and assurance engine. It also implements block encryption algorithms, stream
19 cipher algorithms, hashing algorithms, public key algorithms, run-time
20 integrity checking, and a hardware random number generator. SEC performs
21 higher-level cryptographic operations than previous NXP cryptographic
22 accelerators. This provides significant improvement to system level performance.
24 DPAA2_SEC is one of the hardware resource in DPAA2 Architecture. More information
25 on DPAA2 Architecture is described in :ref:`dpaa2_overview`.
27 DPAA2_SEC PMD is one of DPAA2 drivers which interacts with Management Complex (MC)
28 portal to access the hardware object - DPSECI. The MC provides access to create,
29 discover, connect, configure and destroy dpseci objects in DPAA2_SEC PMD.
31 DPAA2_SEC PMD also uses some of the other hardware resources like buffer pools,
32 queues, queue portals to store and to enqueue/dequeue data to the hardware SEC.
34 DPSECI objects are detected by PMD using a resource container called DPRC (like
35 in :ref:`dpaa2_overview`).
39 .. code-block:: console
43 +--+--------+-------+-------+-------+---------+
45 DPMCP.1 DPIO.1 DPBP.1 DPNI.1 DPMAC.1 DPSECI.1
46 DPMCP.2 DPIO.2 DPNI.2 DPMAC.2 DPSECI.2
52 SEC provides platform assurance by working with SecMon, which is a companion
53 logic block that tracks the security state of the SOC. SEC is programmed by
54 means of descriptors (not to be confused with frame descriptors (FDs)) that
55 indicate the operations to be performed and link to the message and
56 associated data. SEC incorporates two DMA engines to fetch the descriptors,
57 read the message data, and write the results of the operations. The DMA
58 engine provides a scatter/gather capability so that SEC can read and write
59 data scattered in memory. SEC may be configured by means of software for
60 dynamic changes in byte ordering. The default configuration for this version
61 of SEC is little-endian mode.
63 A block diagram similar to dpaa2 NIC is shown below to show where DPAA2_SEC
64 fits in the DPAA2 Bus model
66 .. code-block:: console
72 +----------------+ +------------+
73 | MC SEC object |.......| Mempool |
74 . . . . . . . . . | (DPSECI) | | (DPBP) |
75 . +---+---+--------+ +-----+------+
81 . . . . . . . . . . .| DPIO driver| .
86 +----+------+-------+ +-----+----- | .
88 | VFIO fslmc-bus |....................|.........................
91 +-------------------+ |
93 ========================== HARDWARE =====|=======================
97 =========================================|========================
104 The DPAA2_SEC PMD has support for:
108 * ``RTE_CRYPTO_CIPHER_3DES_CBC``
109 * ``RTE_CRYPTO_CIPHER_AES128_CBC``
110 * ``RTE_CRYPTO_CIPHER_AES192_CBC``
111 * ``RTE_CRYPTO_CIPHER_AES256_CBC``
112 * ``RTE_CRYPTO_CIPHER_AES128_CTR``
113 * ``RTE_CRYPTO_CIPHER_AES192_CTR``
114 * ``RTE_CRYPTO_CIPHER_AES256_CTR``
118 * ``RTE_CRYPTO_AUTH_SHA1_HMAC``
119 * ``RTE_CRYPTO_AUTH_SHA224_HMAC``
120 * ``RTE_CRYPTO_AUTH_SHA256_HMAC``
121 * ``RTE_CRYPTO_AUTH_SHA384_HMAC``
122 * ``RTE_CRYPTO_AUTH_SHA512_HMAC``
123 * ``RTE_CRYPTO_AUTH_MD5_HMAC``
124 * ``RTE_CRYPTO_AUTH_AES_XCBC_MAC``
125 * ``RTE_CRYPTO_AUTH_AES_CMAC``
129 * ``RTE_CRYPTO_AEAD_AES_GCM``
142 The DPAA2 SEC device can be blocked with the following:
144 .. code-block:: console
146 <dpdk app> <EAL args> -b "fslmc:dpseci.x" -- ...
148 Where x is the device object id as configured in resource container.
153 * Hash followed by Cipher mode is not supported
154 * Only supports the session-oriented API implementation (session-less APIs are not supported).
159 DPAA2_SEC driver has similar pre-requisites as described in :ref:`dpaa2_overview`.
160 The following dependencies are not part of DPDK and must be installed separately:
162 See :doc:`../platform/dpaa2` for setup information
164 Currently supported by DPDK:
166 - NXP SDK **19.09+**.
167 - MC Firmware version **10.18.0** and higher.
168 - Supported architectures: **arm64 LE**.
170 - Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup the basic DPDK environment.
176 For enabling logs, use the following EAL parameter:
178 .. code-block:: console
180 ./your_crypto_application <EAL args> --log-level=pmd.crypto.dpaa2:<level>
182 Using ``crypto.dpaa2`` as log matching criteria, all Crypto PMD logs can be
183 enabled which are lower than logging ``level``.