Re: [PATCH 0/2] support dmabuf

[Stephen Hemminger <stephen@networkplumber.org>]

On Tue, 27 Jan 2026 17:44:07 +0000
Cliff Burdick <cburdick@nvidia.com> wrote:

> Add support for kernel dmabuf feature and integrate it in the mlx5 driver. 
> This feature is needed to support GPUDirect on newer kernels.
> 
> Cliff Burdick (2):
>   eal: support dmabuf
>   common/mlx5: support dmabuf
> 
>  .mailmap                                      |   1 +
>  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             |  28 ++-
>  drivers/common/mlx5/mlx5_common_mr.c          | 108 ++++++++++-
>  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            | 168 ++++++++++++++++++
>  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                  | 125 +++++++++++++
>  16 files changed, 576 insertions(+), 8 deletions(-)
> 

Build fails (on MSVC) fix and resubmit.

"cl" "-Ilib\librte_eal.a.p" "-Ilib" "-I..\lib" "-Ilib\eal\common" "-I..\lib\eal\common" "-I." "-I.." "-Iconfig" "-I..\config" "-Ilib\eal\include" "-I..\lib\eal\include" "-Ilib\eal\windows\include" "-I..\lib\eal\windows\include" "-Ilib\eal\x86\include" "-I..\lib\eal\x86\include" "-Ilib\eal" "-I..\lib\eal" "-Ilib\argparse" "-I..\lib\argparse" "-Ilib\log" "-I..\lib\log" "-Ilib\kvargs" "-I..\lib\kvargs" "/MD" "/nologo" "/showIncludes" "/utf-8" "/W3" "/WX" "/std:c11" "/O2" "/Gw" "/wd4244" "/wd4267" "/wd4146" "/experimental:c11atomics" "/d1experimental:typeof" "/experimental:statementExpressions" "/FI" "rte_config.h" "-D_GNU_SOURCE" "-D_WIN32_WINNT=0x0A00" "-DALLOW_EXPERIMENTAL_API" "-DALLOW_INTERNAL_API" "-DABI_VERSION=\"26.1\"" "-DRTE_LOG_DEFAULT_LOGTYPE=lib.eal" "/Fdlib\librte_eal.a.p\eal_common_eal_common_memory.c.pdb" /Folib/librte_eal.a.p/eal_common_eal_common_memory.c.obj "/c" ../lib/eal/common/eal_common_memory.c
../lib/eal/common/eal_common_memory.c(56): error C2143: syntax error: missing ']' before '...'
../lib/eal/common/eal_common_memory.c(56): error C2059: syntax error: '...'
../lib/eal/common/eal_common_memory.c(57): error C2059: syntax error: '}'