[PATCH] platform/mlx5: clarify device FD closure in mlx5 guide

[PATCH] platform/mlx5: clarify device FD closure in mlx5 guide

[Shani Peretz]

Document that PMD takes ownership of the duplicated cmd_fd
and closes it during device teardown.

Signed-off-by: Shani Peretz <shperetz@nvidia.com>
Acked-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
---
 doc/guides/platform/mlx5.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/guides/platform/mlx5.rst b/doc/guides/platform/mlx5.rst
index f386980fdd..285d58be4f 100644
--- a/doc/guides/platform/mlx5.rst
+++ b/doc/guides/platform/mlx5.rst
@@ -710,6 +710,7 @@ and below are the arguments supported by the common mlx5 layer.
   File descriptor of ``ibv_context`` created outside the PMD.
   PMD will use this FD to import remote CTX. The ``cmd_fd`` is obtained from
   the ``ibv_context->cmd_fd`` member, which must be dup'd before being passed.
+  The PMD closes the duplicated FD when the device is closed.
   This parameter is valid only if ``pd_handle`` parameter is specified.
 
   By default, the PMD will create a new ``ibv_context``.
-- 
2.34.1

Re: [PATCH] platform/mlx5: clarify device FD closure in mlx5 guide

[Raslan Darawsheh]

Hi,


On 10/02/2026 4:46 PM, Shani Peretz wrote:
> Document that PMD takes ownership of the duplicated cmd_fd
> and closes it during device teardown.
> 
> Signed-off-by: Shani Peretz <shperetz@nvidia.com>
> Acked-by: Dariusz Sosnowski <dsosnowski@nvidia.com>

Patch applied to next-net-mlx,

Kindest regards
Raslan Darawsheh