[dpdk-dev] [PATCH] doc: update build guide for armv8 crypto PMD

[Honnappa Nagarahalli]

<snip>

> 
> Removed references to Makefile and added guide about building by using
> meson.
> 
> Also added the command to create virtual device.
> 
> Suggested-by: Akhil Goyal <akhil.goyal at nxp.com>
> Signed-off-by: Ruifeng Wang <ruifeng.wang at arm.com>
> ---
>  doc/guides/cryptodevs/armv8.rst | 20 +++++++++++---------
>  1 file changed, 11 insertions(+), 9 deletions(-)
> 
> diff --git a/doc/guides/cryptodevs/armv8.rst
> b/doc/guides/cryptodevs/armv8.rst index fee85354b..d11efe08d 100644
> --- a/doc/guides/cryptodevs/armv8.rst
> +++ b/doc/guides/cryptodevs/armv8.rst
> @@ -26,22 +26,23 @@ Supported authentication algorithms:
>  Installation
>  ------------
> 
> -In order to enable this virtual crypto PMD, user must:
> +To build DPDK with this virtual crypto PMD, the user is required to:
> 
>  * Download AArch64 crypto library source code from
> -  `here <https://github.com/ARM-software/AArch64cryptolib>`_
> +  `here <https://github.com/ARM-software/AArch64cryptolib>`_.
> 
> -* Export the environmental variable ARMV8_CRYPTO_LIB_PATH with
> -  the path to ``AArch64cryptolib`` library.
> -
> -* Build the library by invoking:
> +* Build the ``AArch64cryptolib`` library:
> 
>  .. code-block:: console
> 
> -	make -C $ARMV8_CRYPTO_LIB_PATH/
> +	make
> +
> +* Build DPDK with meson option ``-
> Darmv8_crypto_dir=<path_to_AArch64cryptolib>``:
> +
> +.. code-block:: console
> 
> -* Set CONFIG_RTE_LIBRTE_PMD_ARMV8_CRYPTO=y in
How is the flag set for Meson? Does it need to be documented here?

> -  config/defconfig_arm64-armv8a-linux-gcc
> +	meson -Darmv8_crypto_dir=<path_to_AArch64cryptolib> build
> +	ninja -C build
> 
>  The corresponding device can be created only if the following features  are
> supported by the CPU:
> @@ -53,6 +54,7 @@ are supported by the CPU:
> 
>  Initialization
>  --------------
> +Use ``--vdev "crypto_armv8"`` in the EAL options to create virtual crypto
> device.
> 
>  User can use app/test application to check how to use this PMD and to verify
> crypto processing.
> --
> 2.17.1