[dpdk-dev] [PATCH v2 4/4] doc: add Marvell OCTEON TX2 regex guide

[<guyk@marvell.com>]

From: Guy Kaneti <guyk@marvell.com>

Added Marvell OCTEON TX2 regex guide, features
and updated release notes.

Signed-off-by: Guy Kaneti <guyk@marvell.com>
---
 doc/guides/platform/octeontx2.rst           |  5 +++
 doc/guides/regexdevs/features/octeontx2.ini | 10 +++++
 doc/guides/regexdevs/index.rst              |  1 +
 doc/guides/regexdevs/octeontx2.rst          | 49 +++++++++++++++++++++
 doc/guides/rel_notes/release_20_11.rst      |  5 +++
 5 files changed, 70 insertions(+)
 create mode 100644 doc/guides/regexdevs/features/octeontx2.ini
 create mode 100644 doc/guides/regexdevs/octeontx2.rst

diff --git a/doc/guides/platform/octeontx2.rst b/doc/guides/platform/octeontx2.rst
index 13255eec5..c4d64ab4b 100644
--- a/doc/guides/platform/octeontx2.rst
+++ b/doc/guides/platform/octeontx2.rst
@@ -67,6 +67,8 @@ DPDK subsystem.
    +---+-----+--------------------------------------------------------------+
    | 9 | SDP | rte_ethdev                                                   |
    +---+-----+--------------------------------------------------------------+
+   | 10| REE | rte_regexdev                                                 |
+   +---+-----+--------------------------------------------------------------+
 
 PF0 is called the administrative / admin function (AF) and has exclusive
 privileges to provision RVU functional block's LFs to each of the PF/VF.
@@ -156,6 +158,9 @@ This section lists dataplane H/W block(s) available in OCTEON TX2 SoC.
 #. **Crypto Device Driver**
    See :doc:`../cryptodevs/octeontx2` for CPT crypto device driver information.
 
+#. **Regex Device Driver**
+   See :doc:`../regexdevs/octeontx2` for REE regex device driver information.
+
 Procedure to Setup Platform
 ---------------------------
 
diff --git a/doc/guides/regexdevs/features/octeontx2.ini b/doc/guides/regexdevs/features/octeontx2.ini
new file mode 100644
index 000000000..c9b421a16
--- /dev/null
+++ b/doc/guides/regexdevs/features/octeontx2.ini
@@ -0,0 +1,10 @@
+;
+; Supported features of the 'octeontx2' regex driver.
+;
+; Refer to default.ini for the full list of available driver features.
+;
+[Features]
+PCRE back reference         = Y
+PCRE word boundary          = Y
+Run time compilation        = Y
+Armv8                       = Y
diff --git a/doc/guides/regexdevs/index.rst b/doc/guides/regexdevs/index.rst
index 49216a932..b1abc826b 100644
--- a/doc/guides/regexdevs/index.rst
+++ b/doc/guides/regexdevs/index.rst
@@ -13,3 +13,4 @@ which can be used from an application through RegEx API.
 
    features_overview
    mlx5
+   octeontx2
diff --git a/doc/guides/regexdevs/octeontx2.rst b/doc/guides/regexdevs/octeontx2.rst
new file mode 100644
index 000000000..859780da1
--- /dev/null
+++ b/doc/guides/regexdevs/octeontx2.rst
@@ -0,0 +1,49 @@
+..  SPDX-License-Identifier: BSD-3-Clause
+    Copyright(c) 2020 Marvell International Ltd.
+
+OCTEON TX2 REE Regexdev Driver
+===============================
+
+The OCTEON TX2 REE PMD (**librte_pmd_octeontx2_regex**) provides poll mode
+regexdev driver support for the inbuilt regex device found in the **Marvell OCTEON TX2**
+SoC family.
+
+More information about OCTEON TX2 SoC can be found at `Marvell Official Website
+<https://www.marvell.com/embedded-processors/infrastructure-processors/>`_.
+
+Features
+--------
+
+Features of the OCTEON TX2 REE PMD are:
+
+- 36 queues
+- Up to 254 matches for each regex operation
+
+Prerequisites and Compilation procedure
+---------------------------------------
+
+   See :doc:`../platform/octeontx2` for setup information.
+
+Device Setup
+------------
+
+The OCTEON TX2 REE devices will need to be bound to a user-space IO driver
+for use. The script ``dpdk-devbind.py`` script included with DPDK can be
+used to view the state of the devices and to bind them to a suitable
+DPDK-supported kernel driver. When querying the status of the devices,
+they will appear under the category of "REGEX devices", i.e. the command
+``dpdk-devbind.py --status-dev regex`` can be used to see the state of
+those devices alone.
+
+Debugging Options
+-----------------
+
+.. _table_octeontx2_regex_debug_options:
+
+.. table:: OCTEON TX2 regex device debug options
+
+   +---+------------+-------------------------------------------------------+
+   | # | Component  | EAL log command                                       |
+   +===+============+=======================================================+
+   | 1 | REE        | --log-level='pmd\.regex\.octeontx2,8'                 |
+   +---+------------+-------------------------------------------------------+
diff --git a/doc/guides/rel_notes/release_20_11.rst b/doc/guides/rel_notes/release_20_11.rst
index 57e3edcdd..90b32936f 100644
--- a/doc/guides/rel_notes/release_20_11.rst
+++ b/doc/guides/rel_notes/release_20_11.rst
@@ -148,6 +148,11 @@ New Features
   * Extern objects and functions can be plugged into the pipeline.
   * Transaction-oriented table updates.
 
+* **Added Marvell OCTEON TX2 regex PMD.**
+
+  Added a new PMD driver for hardware regex offload block for OCTEON TX2 SoC.
+
+  See the :doc:`../regexdevs/octeontx2` for more details.
 
 Removed Items
 -------------
-- 
2.28.0