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Message-Id: <20250407231746.2316518-1-sean.anderson@linux.dev>
Date: Mon, 7 Apr 2025 19:17:31 -0400
From: Sean Anderson <sean.anderson@...ux.dev>
To: netdev@...r.kernel.org,
Andrew Lunn <andrew+netdev@...n.ch>,
"David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Russell King <linux@...linux.org.uk>
Cc: linux-kernel@...r.kernel.org,
upstream@...oha.com,
Christian Marangi <ansuelsmth@...il.com>,
Heiner Kallweit <hkallweit1@...il.com>,
Kory Maincent <kory.maincent@...tlin.com>,
Sean Anderson <sean.anderson@...ux.dev>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Clark Wang <xiaoning.wang@....com>,
Claudiu Beznea <claudiu.beznea@...rochip.com>,
Claudiu Manoil <claudiu.manoil@....com>,
Conor Dooley <conor+dt@...nel.org>,
Ioana Ciornei <ioana.ciornei@....com>,
Jonathan Corbet <corbet@....net>,
Joyce Ooi <joyce.ooi@...el.com>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Madalin Bucur <madalin.bucur@....com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Michal Simek <michal.simek@....com>,
Nicolas Ferre <nicolas.ferre@...rochip.com>,
Radhey Shyam Pandey <radhey.shyam.pandey@....com>,
Rob Herring <robh+dt@...nel.org>,
Rob Herring <robh@...nel.org>,
Robert Hancock <robert.hancock@...ian.com>,
Saravana Kannan <saravanak@...gle.com>,
UNGLinuxDriver@...rochip.com,
Vladimir Oltean <vladimir.oltean@....com>,
Wei Fang <wei.fang@....com>,
devicetree@...r.kernel.org,
imx@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org,
linux-doc@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com
Subject: [net-next PATCH v2 00/14] Add PCS core support
This series adds support for creating PCSs as devices on a bus with a
driver (patch 3). As initial users,
- The Lynx PCS (and all of its users) is converted to this system (patch 5)
- The Xilinx PCS is broken out from the AXI Ethernet driver (patches 6-8)
- The Cadence MACB driver is converted to support external PCSs (namely
the Xilinx PCS) (patches 9-10).
The last few patches add device links for pcs-handle to improve boot times,
and add compatibles for all Lynx PCSs.
This series depends on [1,2], and they have been included at the
beginning so CI will run. However, I expect them to be reviewed/applied
outside the net-next tree.
Care has been taken to ensure backwards-compatibility. The main source
of this is that many PCS devices lack compatibles and get detected as
PHYs. To address this, pcs_get_by_fwnode_compat allows drivers to edit
the devicetree to add appropriate compatibles.
There is another series [3] with the same goal by Christian Marangi. In
comparison, I believe this series
- Implements a simpler and more-robust method of PCS access.
- Provides a more-direct upgrade path for existing MAC and PCS drivers.
Due to popular demand, I have added support for #pcs-cells with this
revision.
[1] https://lore.kernel.org/all/20250407222134.2280553-1-sean.anderson@linux.dev/
[2] https://lore.kernel.org/all/20250407223714.2287202-1-sean.anderson@linux.dev/
[3] https://lore.kernel.org/netdev/20250406221423.9723-1-ansuelsmth@gmail.com/
Changes in v2:
- Add fallbacks for pcs_get* and pcs_put
- Add support for #pcs-cells
- Change base compatible to just xlnx,pcs
- Change compatible to just xlnx,pcs
- Defer devicetree updates for another series
- Drop #clock-cells description
- Drop PCS_ALTERA_TSE which was accidentally added while rebasing
- Move #clock-cells after compatible
- Move update to macb_pcs_get_state to previous patch
- Remove outdated comment
- Remove second example
- Remove unused variable
- Remove unused variable lynx_properties
- Rename pcs-modes to xlnx,pcs-modes
- Reorder pcs_handle to come before suffix props
- Reword commit message
- Rework xilinx_pcs_validate to just clear out half-duplex modes instead
of constraining modes based on the interface.
Sean Anderson (13):
dt-bindings: net: Add Xilinx PCS
device property: Add optional nargs_prop for get_reference_args
device property: Add fwnode_property_get_reference_optional_args
scripts: kernel-doc: fix parsing function-like typedefs (again)
net: phylink: Support setting PCS link change callbacks
net: pcs: Add subsystem
net: pcs: lynx: Convert to an MDIO driver
net: phy: Export some functions
net: pcs: Add Xilinx PCS driver
net: axienet: Convert to use PCS subsystem
net: macb: Move most of mac_config to mac_prepare
net: macb: Support external PCSs
of: property: Add device link support for PCS
Vladimir Oltean (1):
net: dsa: ocelot: suppress PHY device scanning on the internal MDIO
bus
.../devicetree/bindings/net/xilinx,pcs.yaml | 115 +++
Documentation/networking/index.rst | 1 +
Documentation/networking/kapi.rst | 4 +
Documentation/networking/pcs.rst | 107 +++
MAINTAINERS | 8 +
drivers/base/property.c | 50 +-
drivers/base/swnode.c | 13 +-
drivers/net/dsa/ocelot/Kconfig | 4 +
drivers/net/dsa/ocelot/felix_vsc9959.c | 15 +-
drivers/net/dsa/ocelot/seville_vsc9953.c | 16 +-
drivers/net/ethernet/altera/Kconfig | 2 +
drivers/net/ethernet/altera/altera_tse_main.c | 7 +-
drivers/net/ethernet/cadence/macb.h | 1 +
drivers/net/ethernet/cadence/macb_main.c | 229 +++--
drivers/net/ethernet/freescale/dpaa/Kconfig | 2 +-
drivers/net/ethernet/freescale/dpaa2/Kconfig | 3 +
.../net/ethernet/freescale/dpaa2/dpaa2-mac.c | 11 +-
drivers/net/ethernet/freescale/enetc/Kconfig | 2 +
.../net/ethernet/freescale/enetc/enetc_pf.c | 8 +-
.../net/ethernet/freescale/enetc/enetc_pf.h | 1 -
.../freescale/enetc/enetc_pf_common.c | 4 +-
drivers/net/ethernet/freescale/fman/Kconfig | 4 +-
.../net/ethernet/freescale/fman/fman_memac.c | 27 +-
drivers/net/ethernet/stmicro/stmmac/Kconfig | 3 +
.../ethernet/stmicro/stmmac/dwmac-socfpga.c | 6 +-
drivers/net/ethernet/xilinx/Kconfig | 1 +
drivers/net/ethernet/xilinx/xilinx_axienet.h | 4 +-
.../net/ethernet/xilinx/xilinx_axienet_main.c | 104 +--
drivers/net/pcs/Kconfig | 45 +-
drivers/net/pcs/Makefile | 4 +
drivers/net/pcs/core.c | 782 ++++++++++++++++++
drivers/net/pcs/pcs-lynx.c | 110 +--
drivers/net/pcs/pcs-xilinx.c | 479 +++++++++++
drivers/net/phy/mdio_device.c | 1 +
drivers/net/phy/phy_device.c | 3 +-
drivers/net/phy/phylink.c | 24 +-
drivers/of/property.c | 12 +-
include/linux/fwnode.h | 2 +-
include/linux/pcs-lynx.h | 13 +-
include/linux/pcs-xilinx.h | 36 +
include/linux/pcs.h | 195 +++++
include/linux/phy.h | 1 +
include/linux/phylink.h | 27 +-
include/linux/property.h | 4 +
scripts/kernel-doc | 2 +-
45 files changed, 2181 insertions(+), 311 deletions(-)
create mode 100644 Documentation/devicetree/bindings/net/xilinx,pcs.yaml
create mode 100644 Documentation/networking/pcs.rst
create mode 100644 drivers/net/pcs/core.c
create mode 100644 drivers/net/pcs/pcs-xilinx.c
create mode 100644 include/linux/pcs-xilinx.h
create mode 100644 include/linux/pcs.h
--
2.35.1.1320.gc452695387.dirty
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