This series contains two patches. The first is a pure refactor that
passes through the extack to devlink_param::get() implementations. The
second introduces a permanent devlink param to the mlx5 driver for
controlling tx csum behavior.

Enabling extack for devlink_param::get() allows drivers to provide
more information in cases when reading parameters from hardware can
result in errors or unexpected values.

The mlx5 swp_l4_csum_mode devlink param is necessary for initializing
PSP on CX7 NICs.

CHANGES:
v2:
  - fix indentation issue in new mlx5.rst entry
  - use extack in mlx5_nv_param_devlink_swp_l4_csum_mode_get()
  - introduce extack patch.
v1: https://lore.kernel.org/netdev/20251022190932.1073898-1-daniel.zahka@gmail.com/ (local)

Daniel Zahka (2):
  devlink: pass extack through to devlink_param::get()
  net/mlx5: implement swp_l4_csum_mode via devlink params

 Documentation/networking/devlink/mlx5.rst     |   9 +
 .../marvell/octeontx2/otx2_cpt_devlink.c      |   6 +-
 drivers/net/ethernet/amd/pds_core/core.h      |   3 +-
 drivers/net/ethernet/amd/pds_core/devlink.c   |   3 +-
 .../net/ethernet/broadcom/bnxt/bnxt_devlink.c |   6 +-
 .../net/ethernet/intel/ice/devlink/devlink.c  |  12 +-
 .../marvell/octeontx2/af/rvu_devlink.c        |  15 +-
 .../marvell/octeontx2/nic/otx2_devlink.c      |   6 +-
 drivers/net/ethernet/mellanox/mlx4/main.c     |   6 +-
 .../net/ethernet/mellanox/mlx5/core/devlink.h |   3 +-
 .../net/ethernet/mellanox/mlx5/core/eswitch.c |   3 +-
 .../mellanox/mlx5/core/eswitch_offloads.c     |   3 +-
 .../net/ethernet/mellanox/mlx5/core/fs_core.c |   3 +-
 .../ethernet/mellanox/mlx5/core/fw_reset.c    |   3 +-
 .../mellanox/mlx5/core/lib/nv_param.c         | 170 +++++++++++++++++-
 .../mellanox/mlxsw/spectrum_acl_tcam.c        |   3 +-
 .../ethernet/netronome/nfp/devlink_param.c    |   3 +-
 drivers/net/ethernet/qlogic/qed/qed_devlink.c |   3 +-
 .../net/ethernet/stmicro/stmmac/stmmac_main.c |   3 +-
 drivers/net/ethernet/ti/am65-cpsw-nuss.c      |   3 +-
 drivers/net/ethernet/ti/cpsw_new.c            |   6 +-
 drivers/net/wwan/iosm/iosm_ipc_devlink.c      |   3 +-
 include/net/devlink.h                         |   3 +-
 include/net/dsa.h                             |   3 +-
 net/devlink/param.c                           |  19 +-
 net/dsa/devlink.c                             |   3 +-
 26 files changed, 257 insertions(+), 46 deletions(-)

-- 
2.47.3