[PATCH net-next 0/3] ethtool: Max power support

[Wojciech Drewek <wojciech.drewek@intel.com>]

Some ethernet modules use nonstandard power levels [1]. Extend ethtool
module implementation to support new attributes that will allow user
to change maximum power. Rename structures and functions to be more
generic. Introduce an example of the new API in ice driver.

Ethtool examples:
$ ethtool --show-module enp1s0f0np0
Module parameters for enp1s0f0np0:
power-min-allowed: 1000 mW
power-max-allowed: 3000 mW
power-max-set: 1500 mW

$ ethtool --set-module enp1s0f0np0 power-max-set 4000

This idea was originally discussed here [2]

[1] https://www.fs.com/de-en/products/69111.html
[2] https://lore.kernel.org/netdev/MW4PR11MB57768054635E8DEF841BB2A9FDE3A@MW4PR11MB5776.namprd11.prod.outlook.com/

Wojciech Drewek (3):
  ethtool: Make module API more generic
  ethtool: Introduce max power support
  ice: Implement ethtool max power configuration

 drivers/net/ethernet/intel/ice/ice.h          |   2 +
 .../net/ethernet/intel/ice/ice_adminq_cmd.h   |  21 +
 drivers/net/ethernet/intel/ice/ice_common.c   |  46 ++
 drivers/net/ethernet/intel/ice/ice_common.h   |   3 +
 drivers/net/ethernet/intel/ice/ice_devlink.c  |  14 +-
 drivers/net/ethernet/intel/ice/ice_ethtool.c  | 461 ++++++++++++++++++
 drivers/net/ethernet/intel/ice/ice_nvm.c      |   2 +-
 drivers/net/ethernet/intel/ice/ice_nvm.h      |   3 +
 drivers/net/ethernet/intel/ice/ice_type.h     |   4 +
 .../net/ethernet/mellanox/mlxsw/core_env.c    |   2 +-
 .../net/ethernet/mellanox/mlxsw/core_env.h    |   2 +-
 drivers/net/ethernet/mellanox/mlxsw/minimal.c |   8 +-
 .../mellanox/mlxsw/spectrum_ethtool.c         |   8 +-
 include/linux/ethtool.h                       |  35 +-
 include/uapi/linux/ethtool_netlink.h          |   4 +
 net/ethtool/module.c                          | 102 +++-
 net/ethtool/netlink.h                         |   2 +-
 17 files changed, 669 insertions(+), 50 deletions(-)

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2.40.1