[PATCH net-next v3 0/7] net: pse-pd: Add new PSE c33 features

[Kory Maincent <kory.maincent@bootlin.com>]

From: Kory Maincent (Dent Project) <kory.maincent@bootlin.com>

This patch series adds new c33 features to the PSE API.
- Expand the PSE PI informations status with power, class and failure
  reason
- Add the possibility to get and set the PSE PIs power limit

Changes in v3:
- Use u32 instead of u8 size for c33 pse extended state and substate.
- Reformat the state and substate enumeration to follow Oleksij proposal which
  is more IEEE 802.3 standard compliant
- Sent the first patch standalone in net.
- Link to v2: https://lore.kernel.org/r/20240607-feature_poe_power_cap-v2-0-c03c2deb83ab@bootlin.com

Changes in v2:
- Use uA and uV instead of mA and mV to have more precision in the power
  calculation. Need to use 64bit variables for the calculation.
- Modify the pd-92x0behavior in case of setting the current out of the
  available ranges. Report an error now.
- Link to v1: https://lore.kernel.org/r/20240529-feature_poe_power_cap-v1-0-0c4b1d5953b8@bootlin.com

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---
Kory Maincent (7):
      net: ethtool: pse-pd: Expand C33 PSE status with class, power and extended state
      netlink: specs: Expand the PSE netlink command with C33 new features
      net: pse-pd: pd692x0: Expand ethtool status message
      net: pse-pd: Add new power limit get and set c33 features
      net: ethtool: Add new power limit get and set features
      netlink: specs: Expand the PSE netlink command with C33 pw-limit attributes
      net: pse-pd: pd692x0: Enhance with new current limit and voltage read callbacks

 Documentation/netlink/specs/ethtool.yaml     |  40 ++++
 Documentation/networking/ethtool-netlink.rst |  45 +++++
 drivers/net/pse-pd/pd692x0.c                 | 292 ++++++++++++++++++++++++++-
 drivers/net/pse-pd/pse_core.c                | 172 +++++++++++++++-
 include/linux/ethtool.h                      |  16 ++
 include/linux/pse-pd/pse.h                   |  42 ++++
 include/uapi/linux/ethtool.h                 | 212 +++++++++++++++++++
 include/uapi/linux/ethtool_netlink.h         |   5 +
 net/ethtool/pse-pd.c                         |  69 ++++++-
 9 files changed, 874 insertions(+), 19 deletions(-)
---
base-commit: 94720a40bd1c6de0780f90f4f68d76be1d2c6bd8
change-id: 20240425-feature_poe_power_cap-18e90ba7294b

Best regards,
-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com