From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shahaf Shuler Subject: Re: [PATCH 1/3] doc: add mlx5 note for Bluefield build configuration Date: Thu, 31 Jan 2019 06:59:40 +0000 Message-ID: References: <20190130075321.24466-1-yskoh@mellanox.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Cc: "dev@dpdk.org" , Olga Shern , "stable@dpdk.org" To: Yongseok Koh , Thomas Monjalon Return-path: In-Reply-To: <20190130075321.24466-1-yskoh@mellanox.com> Content-Language: en-US List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Wednesday, January 30, 2019 9:53 AM, Yongseok Koh: > Subject: [dpdk-dev] [PATCH 1/3] doc: add mlx5 note for Bluefield build > configuration >=20 > Fixes: d14e4e976f65 ("config: add Mellanox BlueField armv8 SoC") > Cc: stable@dpdk.org >=20 > Signed-off-by: Yongseok Koh For the series - Acked-by: Shahaf Shuler > --- > doc/guides/nics/mlx5.rst | 7 +++++++ > 1 file changed, 7 insertions(+) >=20 > 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`` fil= e. > adds additional run-time checks and debugging messages at the cost of > lower performance. >=20 > +.. 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 > ~~~~~~~~~~~~~~~~~~~~~ >=20 > -- > 2.11.0