[PATCH v2] doc/guides: Mention needed kernel option for mlx5

[PATCH v2] doc/guides: Mention needed kernel option for mlx5

[Jaromír Smrček]

On some kernels (Debian 6.6, 6.9 and 6.10 tested),
there is a missing option for "TC recirculation"
that prevents MLX5 driver to include CONFIG_MLX5_CLS_ACT
in the compilation, thus preventing PF1
from properly working in multiport-eswitch mode.

Fixes: 11c73de9ef63 ("net/mlx5: probe multi-port E-Switch device")

v2:
- Added additional MLX5 kernel option
- Fixed patch formatting
- Added "Fixes" tag

Signed-off-by: Jaromír Smrček <4plague@gmail.com>
---
 doc/guides/nics/mlx5.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index 30c40f767b..06c6e80f83 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -1713,7 +1713,7 @@ Supported HCAs:

 Supported mlx5 kernel modules versions:

-- Upstream Linux - from version 6.3.
+- Upstream Linux - from version 6.3. with CONFIG_NET_TC_SKB_EXT and
CONFIG_MLX5_CLS_ACT enabled
 - Modules packaged in MLNX_OFED - from version v23.04-0.5.3.3.

 Configuration
--
2.39.2

Re: [PATCH v2] doc/guides: Mention needed kernel option for mlx5

[Dariusz Sosnowski]

Hi,

On Thu, Mar 06, 2025 at 10:09:08PM +0100, Jaromír Smrček wrote:
> On some kernels (Debian 6.6, 6.9 and 6.10 tested),
> there is a missing option for "TC recirculation"
> that prevents MLX5 driver to include CONFIG_MLX5_CLS_ACT
> in the compilation, thus preventing PF1
> from properly working in multiport-eswitch mode.
> 
> Fixes: 11c73de9ef63 ("net/mlx5: probe multi-port E-Switch device")
> 
> v2:
> - Added additional MLX5 kernel option
> - Fixed patch formatting
> - Added "Fixes" tag
> 
> Signed-off-by: Jaromír Smrček <4plague@gmail.com>

Acked-by: Dariusz Sosnowski <dsosnowski@nvidia.com>

Best regards,
Dariusz Sosnowski