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

[Ruifeng Wang]

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
-  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