Re: [PATCH v4 0/2] support dmabuf

Stephen Hemminger
2026-02-05T18:48:53Z

On Wed, 4 Feb 2026 15:50:07 +0000
Cliff Burdick <cburdick@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.