[PATCH v4 09/12] doc: add NXP dpaa2_sec in cryptodev

[Akhil Goyal <akhil.goyal@nxp.com>]

Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
Reviewed-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 doc/guides/cryptodevs/dpaa2_sec.rst | 232 ++++++++++++++++++++++++++++++++++++
 doc/guides/cryptodevs/index.rst     |   1 +
 2 files changed, 233 insertions(+)
 create mode 100644 doc/guides/cryptodevs/dpaa2_sec.rst

diff --git a/doc/guides/cryptodevs/dpaa2_sec.rst b/doc/guides/cryptodevs/dpaa2_sec.rst
new file mode 100644
index 0000000..63a8ee3
--- /dev/null
+++ b/doc/guides/cryptodevs/dpaa2_sec.rst
@@ -0,0 +1,232 @@
+..  BSD LICENSE
+    Copyright(c) 2016 NXP. All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+
+    * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in
+    the documentation and/or other materials provided with the
+    distribution.
+    * Neither the name of NXP nor the names of its
+    contributors may be used to endorse or promote products derived
+    from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+NXP(R) DPAA2 CAAM Accelerator Based (DPAA2_SEC) Crypto Poll Mode Driver
+========================================================================
+
+The DPAA2_SEC PMD provides poll mode crypto driver support for NXP DPAA2 CAAM
+hardware accelerator.
+
+Architecture
+------------
+
+SEC is the SOC's security engine, which serves as NXP's latest cryptographic
+acceleration and offloading hardware. It combines functions previously
+implemented in separate modules to create a modular and scalable acceleration
+and assurance engine. It also implements block encryption algorithms, stream
+cipher algorithms, hashing algorithms, public key algorithms, run-time
+integrity checking, and a hardware random number generator. SEC performs
+higher-level cryptographic operations than previous NXP cryptographic
+accelerators. This provides significant improvement to system level performance.
+
+DPAA2_SEC is one of the hardware resource in DPAA2 Architecture. More information
+on DPAA2 Architecture is described in docs/guides/nics/dpaa2.rst
+
+DPAA2_SEC PMD is one of DPAA2 drivers which interacts with Management Complex (MC)
+portal to access the hardware object - DPSECI. The MC provides access to create,
+discover, connect, configure and destroy dpseci object in DPAA2_SEC PMD.
+
+DPAA2_SEC PMD also uses some of the other hardware resources like buffer pools,
+queues, queue portals to store and to enqueue/dequeue data to the hardware SEC.
+
+DPSECI objects are detected by PMD using a resource container called DPRC(like in
+docs/guides/nics/dpaa2.rst).
+
+For example:
+
+.. code-block:: console
+
+    DPRC.1 (bus)
+      |
+      +--+--------+-------+-------+-------+---------+
+         |        |       |       |       |	    |
+       DPMCP.1  DPIO.1  DPBP.1  DPNI.1  DPMAC.1  DPSECI.1
+       DPMCP.2  DPIO.2		DPNI.2	DPMAC.2	 DPSECI.2
+       DPMCP.3
+
+Implementation
+--------------
+
+SEC provides platform assurance by working with SecMon, which is a companion
+logic block that tracks the security state of the SOC. SEC is programmed by
+means of descriptors (not to be confused with frame descriptors (FDs)) that
+indicate the operations to be performed and link to the message and
+associated data. SEC incorporates two DMA engines to fetch the descriptors,
+read the message data, and write the results of the operations. The DMA
+engine provides a scatter/gather capability so that SEC can read and write
+data scattered in memory. SEC may be configured by means of software for
+dynamic changes in byte ordering. The default configuration for this version
+of SEC is little-endian mode.
+
+A block diagram similar to dpaa2 NIC is shown below to show where DPAA2_SEC
+fits in the DPAA2 Bus model
+
+.. code-block:: console
+
+
+                                       +----------------+
+                                       | DPDK DPAA2_SEC |
+                                       |     PMD        |
+                                       +----------------+       +------------+
+                                       |  MC SEC object |.......|  Mempool   |
+                    . . . . . . . . .  |   (DPSECI)     |       |  (DPBP)    |
+                   .                   +---+---+--------+       +-----+------+
+                  .                        ^   |                      .
+                 .                         |   |<enqueue,             .
+                .                          |   | dequeue>             .
+               .                           |   |       	  	      .
+              .                        +---+---V----+                 .
+             .      . . . . . . . . . .| DPIO driver|                 .
+            .      .                   |  (DPIO)    |                 .
+           .      .                    +-----+------+                 .
+          .      .                     |  QBMAN     |                 .
+         .      .                      |  Driver    |                 .
+    +----+------+-------+              +-----+----- |                 .
+    |   dpaa2 bus       |                    |                        .
+    |   VFIO fslmc-bus  |....................|.........................
+    |                   |                    |
+    |     /bus/fslmc    |                    |
+    +-------------------+                    |
+                                             |
+    ========================== HARDWARE =====|=======================
+                                           DPIO
+                                             |
+                                           DPSECI---DPBP
+    =========================================|========================
+
+
+
+Features
+--------
+
+The DPAA2 PMD has support for:
+
+Cipher algorithms:
+
+* ``RTE_CRYPTO_CIPHER_3DES_CBC``
+* ``RTE_CRYPTO_CIPHER_AES128_CBC``
+* ``RTE_CRYPTO_CIPHER_AES192_CBC``
+* ``RTE_CRYPTO_CIPHER_AES256_CBC``
+
+Hash algorithms:
+
+* ``RTE_CRYPTO_AUTH_SHA1_HMAC``
+* ``RTE_CRYPTO_AUTH_SHA224_HMAC``
+* ``RTE_CRYPTO_AUTH_SHA256_HMAC``
+* ``RTE_CRYPTO_AUTH_SHA384_HMAC``
+* ``RTE_CRYPTO_AUTH_SHA512_HMAC``
+* ``RTE_CRYPTO_AUTH_MD5_HMAC``
+
+Supported DPAA2 SoCs
+--------------------
+
+- LS2080A/LS2040A
+- LS2084A/LS2044A
+- LS2088A/LS2048A
+- LS1088A/LS1048A
+
+Limitations
+-----------
+
+* Chained mbufs are not supported.
+* Hash followed by Cipher mode is not supported
+* Only supports the session-oriented API implementation (session-less APIs are not supported).
+
+Prerequisites
+-------------
+
+DPAA2_SEC driver has similar pre-requisites as listed in dpaa2 pmd(docs/guides/nics/dpaa2.rst).
+The following dependencies are not part of DPDK and must be installed separately:
+
+- **NXP Linux SDK**
+
+  NXP Linux software development kit (SDK) includes support for family
+  of QorIQ® ARM-Architecture-based system on chip (SoC) processors
+  and corresponding boards.
+
+  It includes the Linux board support packages (BSPs) for NXP SoCs,
+  a fully operational tool chain, kernel and board specific modules.
+
+  SDK and related information can be obtained from:  `NXP QorIQ SDK  <http://www.nxp.com/products/software-and-tools/run-time-software/linux-sdk/linux-sdk-for-qoriq-processors:SDKLINUX>`_.
+
+- **DPDK Helper Scripts**
+
+  DPAA2 based resources can be configured easily with the help of ready scripts
+  as provided in the DPDK helper repository.
+
+  `DPDK Helper Scripts <https://github.com/qoriq-open-source/dpdk-helper>`_.
+
+Currently supported by DPDK:
+
+- NXP SDK **2.0+**.
+- MC Firmware version **10.0.0** and higher.
+- Supported architectures:  **arm64 LE**.
+
+- Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup the basic DPDK environment.
+
+Pre-Installation Configuration
+------------------------------
+
+Config File Options
+~~~~~~~~~~~~~~~~~~~
+
+Basic DPAA2 config file options are described in doc/guides/nics/dpaa2.rst.
+In Additiont to those following options can be modified in the ``config`` file
+to enable DPAA2_SEC PMD.
+
+Please note that enabling debugging options may affect system performance.
+
+- ``CONFIG_RTE_LIBRTE_PMD_DPAA2_SEC`` (default ``n``)
+  By default it is only enabled in defconfig_arm64-dpaa2-* config.
+  Toggle compilation of the ``librte_pmd_dpaa2_sec`` driver.
+
+- ``CONFIG_RTE_LIBRTE_DPAA2_SEC_DEBUG_INIT`` (default ``n``)
+  Toggle display of initialization related driver messages
+
+- ``CONFIG_RTE_LIBRTE_DPAA2_SEC_DEBUG_DRIVER`` (default ``n``)
+  Toggle display of driver runtime messages
+
+- ``CONFIG_RTE_LIBRTE_DPAA2_SEC_DEBUG_RX`` (default ``n``)
+  Toggle display of receive fast path run-time message
+
+- ``CONFIG_RTE_DPAA2_SEC_PMD_MAX_NB_SESSIONS``
+  By default it is set as 2048 in defconfig_arm64-dpaa2-* config.
+  It indicates Number of sessions to create in the session memory pool
+  on a single DPAA2 SEC device.
+
+Installations
+-------------
+To compile the DPAA2_SEC PMD for Linux arm64 gcc target, run the
+following ``make`` command:
+
+.. code-block:: console
+
+   cd <DPDK-source-directory>
+   make config T=arm64-dpaa2-linuxapp-gcc install
diff --git a/doc/guides/cryptodevs/index.rst b/doc/guides/cryptodevs/index.rst
index 0b50600..361b82d 100644
--- a/doc/guides/cryptodevs/index.rst
+++ b/doc/guides/cryptodevs/index.rst
@@ -39,6 +39,7 @@ Crypto Device Drivers
     aesni_mb
     aesni_gcm
     armv8
+    dpaa2_sec
     kasumi
     openssl
     null
-- 
2.9.3