RE: [PATCH V5] net/mlx5: support ESP SPI match and RSS hash

[Raslan Darawsheh <rasland@nvidia.com>]

Hi,
> -----Original Message-----
> From: Raja Zidane <rzidane@nvidia.com>
> Sent: Thursday, May 12, 2022 12:17 PM
> To: dev@dpdk.org
> Cc: Matan Azrad <matan@nvidia.com>
> Subject: [PATCH V5] net/mlx5: support ESP SPI match and RSS hash
> 
> In packets with ESP header, The Inner IP will be encrypted, and its fields
> cannot be used for RSS hashing. So, ESP packets can be hashed only by the
> outer IP layer.
> So, when using RSS on ESP packets, hashing may not be efficient, because
> the fields used by the hash functions are only the Outer IPs, causing all traffic
> belonging to all tunnels between a given pair of GWs to land on one core.
> Adding the SPI hash field can extend the spreading of IPSec packets.
> 
> support matching on ESP SPI.
> Support RSS on ESP header by hashing SPI field.
> 
> Signed-off-by: Raja Zidane <rzidane@nvidia.com>
> ---
> V2: added doc.
> V3: fixed checkpatch.
> V4: rebase
> V5: rebase and doc.
>  doc/guides/nics/features/mlx5.ini      |  1 +
>  doc/guides/nics/mlx5.rst               |  1 +
>  doc/guides/rel_notes/release_22_07.rst |  2 +
> drivers/common/mlx5/linux/meson.build  |  2 +
>  drivers/common/mlx5/mlx5_prm.h         |  5 +-
>  drivers/net/mlx5/mlx5_defs.h           |  2 +-
>  drivers/net/mlx5/mlx5_devx.c           |  4 +-
>  drivers/net/mlx5/mlx5_flow.c           | 84 +++++++++++++++++++++++-
>  drivers/net/mlx5/mlx5_flow.h           | 20 ++++++
>  drivers/net/mlx5/mlx5_flow_dv.c        | 88 +++++++++++++++++++++++++-
>  10 files changed, 204 insertions(+), 5 deletions(-)
> 

Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh