[PATCH 0/4] net/mlx5: future HW devargs defaults and fixes

[Raslan Darawsheh]

Hi,

On 12/01/2026 11:24 AM, Maayan Kashani wrote:
> This patch series contains bug fixes for the mlx5 PMD, primarily
> addressing issues with Hardware Steering (HWS) and flow devarg handling.
> 
> Summary of changes:
> 
> 1. drivers: fix flow devarg handling for future HW
>     Addresses SWS (Software Steering) deprecation on future hardware
>     generations (e.g., ConnectX-9). Updates default behavior for
>     dv_flow_en and allow_duplicate_pattern devargs based on device
>     capabilities, with proper error handling and user feedback.
> 
> 2. net/mlx5: fix default memzone requirements in HWS
>     Fixes memzone exhaustion when probing setups with ~1K SFs. The
>     default HWS sync flow API configuration was allocating unnecessary
>     rings (flow_transfer_pending/completed) that are only used with
>     async flow API. This patch removes the unnecessary allocations to
>     stay within memzone limits.
> 
> 3. net/mlx5: fix internal HWS pattern template creation
>     Improves PMD initialization time by separating pattern templates
>     into internal and external categories. Internal templates (created
>     by PMD) skip expensive validations, while application-provided
>     templates remain fully validated.
> 
> 4. net/mlx5: fix redundant control rules in promiscuous mode
>     Removes redundant DMAC and multicast/broadcast control flow rules
>     when promiscuous mode is enabled, as the device already receives
>     all traffic in this mode.
> 
> All patches are targeted for stable backport.
> 
> Dariusz Sosnowski (1):
>    net/mlx5: fix default memzone requirements in HWS
> 
> Maayan Kashani (3):
>    drivers: fix flow devarg handling for future HW
>    net/mlx5: fix internal HWS pattern template creation
>    net/mlx5: fix redundant control rules in promiscuous mode
> 
>   doc/guides/nics/mlx5.rst             |  11 ++-
>   drivers/common/mlx5/mlx5_devx_cmds.c |  18 ++++
>   drivers/common/mlx5/mlx5_devx_cmds.h |   6 ++
>   drivers/common/mlx5/mlx5_prm.h       |  14 +++-
>   drivers/net/mlx5/mlx5.c              |  71 +++++++++++++++-
>   drivers/net/mlx5/mlx5_flow_hw.c      | 121 ++++++++++++++++++++-------
>   drivers/net/mlx5/mlx5_trigger.c      |  16 ++--
>   7 files changed, 214 insertions(+), 43 deletions(-)
> 

Series applied to next-net-mlx,

Kindest regards
Raslan Darawsheh