linux-kernel - [PATCH net-next v2 0/8] net: Add support for Power over Ethernet (PoE)

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Message-Id: <20231201-feature_poe-v2-0-56d8cac607fa@bootlin.com>
Date:   Fri, 01 Dec 2023 18:10:22 +0100
From:   Kory Maincent <kory.maincent@...tlin.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Russ Weight <russ.weight@...ux.dev>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Oleksij Rempel <o.rempel@...gutronix.de>
Cc:     Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, devicetree@...r.kernel.org,
        Dent Project <dentproject@...uxfoundation.org>,
        Kory Maincent <kory.maincent@...tlin.com>
Subject: [PATCH net-next v2 0/8] net: Add support for Power over Ethernet
 (PoE)

This patch series aims at adding support for PoE (Power over Ethernet),
based on the already existing support for PoDL (Power over Data Line)
implementation. In addition, it adds support for one specific PoE
controller, the Microchip PD692x0.

The PD692x0 driver is based on the patch merged in an immutable branch
from Jakub repo. It is Tagged at:
git://git.kernel.org/pub/scm/linux/kernel/git/kuba/linux.git firmware_loader-add-upload-error
The patch is already merged in net-next.

In detail:
- Patch 1 to 6 prepare net to support PoE devices.
- Patch 7 and 8 add PD692x0 PoE PSE controller driver and its binding.

Changes in v2:
- Extract "firmware_loader: Expand Firmware upload error codes patches" to
  send it alone and get it merge in an immutable branch.
- Add "c33" prefix for PoE variables and enums.
- Enhance few comments.
- Add PSE Documentation.
- Make several changes in pd692x0 driver, mainly for readibility.
- Link to v1: https://lore.kernel.org/r/20231116-feature_poe-v1-0-be48044bf249@bootlin.com

Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
---
Kory Maincent (8):
      net: pse-pd: Rectify and adapt the naming of admin_cotrol member of struct pse_control_config
      ethtool: Expand Ethernet Power Equipment with c33 (PoE) alongside PoDL
      net: pse-pd: Introduce PSE types enumeration
      net: ethtool: pse-pd: Expand pse commands with the PSE PoE interface
      netlink: specs: Modify pse attribute prefix
      netlink: specs: Expand the pse netlink command with PoE interface
      dt-bindings: net: pse-pd: Add bindings for PD692x0 PSE controller
      net: pse-pd: Add PD692x0 PSE controller driver

 .../bindings/net/pse-pd/microchip,pd692x0.yaml     |   77 ++
 Documentation/netlink/specs/ethtool.yaml           |   33 +-
 Documentation/networking/ethtool-netlink.rst       |   20 +
 Documentation/networking/pse-pd/introduction.rst   |   73 ++
 MAINTAINERS                                        |    7 +
 drivers/net/pse-pd/Kconfig                         |   11 +
 drivers/net/pse-pd/Makefile                        |    1 +
 drivers/net/pse-pd/pd692x0.c                       | 1025 ++++++++++++++++++++
 drivers/net/pse-pd/pse_core.c                      |    9 +
 drivers/net/pse-pd/pse_regulator.c                 |    9 +-
 include/linux/pse-pd/pse.h                         |   35 +-
 include/uapi/linux/ethtool.h                       |   43 +
 include/uapi/linux/ethtool_netlink.h               |    3 +
 net/ethtool/pse-pd.c                               |   64 +-
 tools/net/ynl/generated/ethtool-user.c             |   54 +-
 tools/net/ynl/generated/ethtool-user.h             |   81 +-
 16 files changed, 1481 insertions(+), 64 deletions(-)
---
base-commit: 98137c429a4854583210707a82114b4f5c171c5e
change-id: 20231024-feature_poe-139490e73403

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