From f06a2d4fb9f051f93aa1848dedb9973452f575f0 Mon Sep 17 00:00:00 2001 From: Yongseok Koh Date: Tue, 29 Jan 2019 23:53:19 -0800 Subject: [PATCH] doc: add mlx5 note for Bluefield build configuration Fixes: d14e4e976f65 ("config: add Mellanox BlueField armv8 SoC") Cc: stable@dpdk.org Signed-off-by: Yongseok Koh Acked-by: Shahaf Shuler --- doc/guides/nics/mlx5.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index 3f168b1613..62de860d0a 100644 --- a/doc/guides/nics/mlx5.rst +++ b/doc/guides/nics/mlx5.rst @@ -221,6 +221,13 @@ These options can be modified in the ``.config`` file. adds additional run-time checks and debugging messages at the cost of lower performance. +.. note:: + + For Bluefield, target should be set to ``arm64-bluefield-linuxapp-gcc``. This + will enable ``CONFIG_RTE_LIBRTE_MLX5_PMD`` and set ``RTE_CACHE_LINE_SIZE`` to + 64. Default armv8a configuration of make build and meson build set it to 128 + then brings performance degradation. + Environment variables ~~~~~~~~~~~~~~~~~~~~~ -- 2.20.1