[dpdk-dev] [PATCH 39/39] doc: add OCTEONTX ssovf details

[Van Haaren, Harry]

> From: Jerin Jacob [mailto:jerin.jacob at caviumnetworks.com]
> Sent: Friday, March 3, 2017 5:28 PM
> To: dev at dpdk.org
> Cc: thomas.monjalon at 6wind.com; Richardson, Bruce <bruce.richardson at intel.com>; Van
> Haaren, Harry <harry.van.haaren at intel.com>; hemant.agrawal at nxp.com; Eads, Gage
> <gage.eads at intel.com>; nipun.gupta at nxp.com; santosh.shukla at caviumnetworks.com; Jerin
> Jacob <jerin.jacob at caviumnetworks.com>
> Subject: [dpdk-dev] [PATCH 39/39] doc: add OCTEONTX ssovf details
> 
> Signed-off-by: Jerin Jacob <jerin.jacob at caviumnetworks.com>
> Signed-off-by: Santosh Shukla <santosh.shukla at caviumnetworks.com>


Comments inline, but after that

Acked-by: Harry van Haaren <harry.van.haaren at intel.com>


> ---
>  MAINTAINERS                       |   9 +++
>  doc/guides/eventdevs/index.rst    |  38 +++++++++++
>  doc/guides/eventdevs/octeontx.rst | 131 ++++++++++++++++++++++++++++++++++++++
>  doc/guides/index.rst              |   1 +
>  4 files changed, 179 insertions(+)
>  create mode 100644 doc/guides/eventdevs/index.rst
>  create mode 100644 doc/guides/eventdevs/octeontx.rst
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index c76d924..cbc5fe4 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -484,6 +484,15 @@ M: Fan Zhang <roy.fan.zhang at intel.com>
>  F: drivers/crypto/scheduler/
>  F: doc/guides/cryptodevs/scheduler.rst
> 
> +Eventdev Drivers
> +------------------
> +
> +Cavium OCTEONTX ssovf
> +M: Jerin Jacob <jerin.jacob at caviumnetworks.com>
> +M: Santosh Shukla <santosh.shukla at caviumnetworks.com>
> +F: drivers/event/octeontx/
> +F: app/test/test_eventdev_octeontx.c
> +F: doc/guides/eventdevs/octeontx.rst
> 
>  Packet processing
>  -----------------
> diff --git a/doc/guides/eventdevs/index.rst b/doc/guides/eventdevs/index.rst
> new file mode 100644
> index 0000000..52be539
> --- /dev/null
> +++ b/doc/guides/eventdevs/index.rst
> @@ -0,0 +1,38 @@
> +..  BSD LICENSE
> +    Copyright(c) 2015 - 2017 Intel Corporation. All rights reserved.

Copy - paste error I think      ^^^^^


> +
> +    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 Intel Corporation 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.
> +
> +Event Device Drivers
> +=====================
> +
> +
> +.. toctree::
> +    :maxdepth: 2
> +    :numbered:
> +
> +    octeontx
> diff --git a/doc/guides/eventdevs/octeontx.rst b/doc/guides/eventdevs/octeontx.rst
> new file mode 100644
> index 0000000..eec27ab
> --- /dev/null
> +++ b/doc/guides/eventdevs/octeontx.rst
> @@ -0,0 +1,131 @@
> +..  BSD LICENSE
> +    Copyright (C) Cavium networks Ltd. 2017.
> +    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 Cavium networks 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.
> +
> +OCTEONTX SSOVF Eventdev Driver
> +==============================
> +
> +The OCTEONTX SSOVF PMD (**librte_pmd_octeontx_ssovf**) provides poll mode
> +eventdev driver support for the inbuilt event device found in the **Cavium OCTEONTX**
> +SoC family as well as their virtual functions (VF) in SR-IOV context.
> +
> +More information can be found at `Cavium Networks Official Website
> +<http://www.cavium.com/OCTEON-TX_ARM_Processors.html>`_.
> +
> +Features
> +--------
> +
> +Features of the OCTEONTX SSOVF PMD are:
> +
> +- 64 Event queues
> +- 32 Event ports
> +- HW event scheduler
> +- Supports 1M flows per event queue
> +- Flow based event pipeling
> +- Flow pinning support in flow based event pipeling
> +- Queue based event pipeling

Typo in Pipelining for the above 3 items

> +- Supports ATOMIC,ORDERED,PARALLEL schedule types per flow
> +- Event scheduling QoS based on event queue priority
> +- Open system with configurable amount of outstanding events
> +- HW accelerated dequeue timeout support to enable power management
> +- SR-IOV VF
> +
> +Supported OCTEONTX SoCs
> +-----------------------
> +- CN83xx
> +
> +Prerequisites
> +-------------
> +
> +There are three main pre-perquisites for executing SSOVF PMD on a OCTEONTX
> +compatible board:
> +
> +1. **OCTEONTX Linux kernel PF driver for Network acceleration HW blocks**
> +
> +   The OCTEONTX Linux kernel drivers (including the required PF driver for the
> +   SSOVF) are available on Github at `octeontx-kmod
> <https://github.com/caviumnetworks/octeontx-kmod>`_
> +   along with build, install and dpdk usage instructions.
> +
> +2. **ARM64 Tool Chain**
> +
> +   For example, the *aarch64* Linaro Toolchain, which can be obtained from
> +   `here <https://releases.linaro.org/components/toolchain/binaries/4.9-
> 2017.01/aarch64-linux-gnu>`_.
> +
> +3. **Rootfile system**
> +
> +   Any *aarch64* supporting filesystem can be used. For example,
> +   Ubuntu 15.10 (Wily) or 16.04 LTS (Xenial) userland which can be obtained
> +   from `<http://cdimage.ubuntu.com/ubuntu-base/releases/16.04/release/ubuntu-base-
> 16.04.1-base-arm64.tar.gz>`_.
> +
> +   As an alternative method, SSOVF PMD can also be executed using images provided
> +   as part of SDK from Cavium. The SDK includes all the above prerequisites necessary
> +   to bring up a OCTEONTX board.
> +
> +   SDK and related information can be obtained from: `Cavium support site
> <https://support.cavium.com/>`_.
> +
> +- Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup the basic
> DPDK environment.
> +
> +Pre-Installation Configuration
> +------------------------------
> +
> +Config File Options
> +~~~~~~~~~~~~~~~~~~~
> +
> +The following options can be modified in the ``config`` file.
> +Please note that enabling debugging options may affect system performance.
> +
> +- ``CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF`` (default ``n``)
> +
> +  By default it is enabled only for defconfig_arm64-thunderx-* config.
> +  Toggle compilation of the ``librte_pmd_octeontx_ssovf`` driver.
> +
> +- ``CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF_DEBUG`` (default ``n``)
> +
> +  Toggle display of generic debugging messages
> +
> +Driver Compilation
> +~~~~~~~~~~~~~~~~~~
> +
> +To compile the OCTEONTX SSOVF PMD for Linux arm64 gcc target, run the
> +following “make” command:
> +
> +.. code-block:: console
> +
> +   cd <DPDK-source-directory>
> +   make config T=arm64-thunderx-linuxapp-gcc install
> +
> +Limitations
> +-----------
> +
> +Burst mode support
> +~~~~~~~~~~~~~~~~~~
> +
> +Burt mode is not supported. Dequeue and Enqueue functions accepts only single


Typo here, burst


> +event at a time
> +
> diff --git a/doc/guides/index.rst b/doc/guides/index.rst
> index 82b00e9..63716b0 100644
> --- a/doc/guides/index.rst
> +++ b/doc/guides/index.rst
> @@ -43,6 +43,7 @@ DPDK documentation
>     testpmd_app_ug/index
>     nics/index
>     cryptodevs/index
> +   eventdevs/index
>     xen/index
>     contributing/index
>     rel_notes/index
> --
> 2.5.5