[PATCH v4 0/2] support dmabuf

[Stephen Hemminger]

On Wed, 4 Feb 2026 15:50:07 +0000
Cliff Burdick <cburdick at nvidia.com> wrote:

> Fixes since v3:
> * Fixed version in RTE_EXPORT_EXPERIMENTAL_SYMBOL
> 
> Add support for kernel dmabuf feature and integrate it in the mlx5 driver.
> This feature is needed to support GPUDirect on newer kernels.
> 
> I apologize for all the patches. Still trying to learn how to submit these.
> 
> Cliff Burdick (2):
>   eal: support dmabuf
>   common/mlx5: support dmabuf
> 
>  .mailmap                                      |   1 +
>  doc/guides/rel_notes/release_26_03.rst        |   6 +
>  drivers/common/mlx5/linux/meson.build         |   2 +
>  drivers/common/mlx5/linux/mlx5_common_verbs.c |  48 ++++-
>  drivers/common/mlx5/linux/mlx5_glue.c         |  19 ++
>  drivers/common/mlx5/linux/mlx5_glue.h         |   3 +
>  drivers/common/mlx5/mlx5_common.c             |  42 ++++-
>  drivers/common/mlx5/mlx5_common_mr.c          | 113 +++++++++++-
>  drivers/common/mlx5/mlx5_common_mr.h          |  17 +-
>  drivers/common/mlx5/windows/mlx5_common_os.c  |   8 +-
>  drivers/crypto/mlx5/mlx5_crypto.h             |   1 +
>  drivers/crypto/mlx5/mlx5_crypto_gcm.c         |   3 +-
>  lib/eal/common/eal_common_memory.c            | 165 +++++++++++++++++-
>  lib/eal/common/eal_memalloc.h                 |  21 +++
>  lib/eal/common/malloc_heap.c                  |  27 +++
>  lib/eal/common/malloc_heap.h                  |   5 +
>  lib/eal/include/rte_memory.h                  | 145 +++++++++++++++
>  17 files changed, 612 insertions(+), 14 deletions(-)
> 

Any new library like this needs standalone tests so that it gets
covered in CI etc.