[PATCH ethtool-next 0/3] Add support for new features in C33 PSE

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

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

This series adds support for several new features to the C33 PSE commands:
- Get the Class negotiated between the Powered Device and the PSE
- Get Extended state and substate
- Get the Actual power
- Configure the power limit
- Get the Power limit ranges available

It also updates the manual accordingly.

Example:
$ ethtool --set-pse eth1 c33-pse-avail-pw-limit 18000
$ ethtool --show-pse eth1
PSE attributes for eth1:
Clause 33 PSE Admin State: enabled
Clause 33 PSE Power Detection Status: disabled
Clause 33 PSE Extended State: Group of mr_mps_valid states
Clause 33 PSE Extended Substate: Port is not connected
Clause 33 PSE Available Power Limit: 18000
Clause 33 PSE Power Limit Ranges:
        range:
                min 15000
                max 18100
        range:
                min 30000
                max 38000
        range:
                min 60000
                max 65000
        range:
                min 90000
                max 97500

This series requisites the c33 PSE documentation support patch sent
mainline:
https://lore.kernel.org/r/20240911-fix_missing_doc-v2-1-e2eade6886b9@bootlin.com

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---
Kory Maincent (3):
      ethtool: pse-pd: Expand C33 PSE with several new features
      ethtool.8: Fix small documentation nit
      ethtool.8: Add documentation for new C33 PSE features

 ethtool.8.in     |  37 +++++++-
 netlink/pse-pd.c | 275 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 311 insertions(+), 1 deletion(-)
---
base-commit: 1675c9c8df2e13c2c800ef4d86cfc5a37ddeaa3e
change-id: 20240709-feature_poe_power_cap-56bd976dd237

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