[RFC net-next PATCH 00/13] Add PCS core support
From: Sean Anderson
Date: Thu Apr 03 2025 - 14:20:53 EST
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.
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.
This is technically a v3 (with [1,2] being v1 and v2, respectively), but
there have been so many architectural changes that I didn't bother
maintaining the series changelog. I think it is best to review this
series independently of its past iterations. I submitted this as an RFC
since net-next is closed, but I believe this series is fully tested and
ready to be applied.
[1] https://lore.kernel.org/netdev/20211004191527.1610759-1-sean.anderson@xxxxxxxx/
[2] https://lore.kernel.org/netdev/20221103210650.2325784-1-sean.anderson@xxxxxxxx/
Sean Anderson (12):
dt-bindings: net: Add binding for Xilinx PCS
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
arm64: dts: Add compatible strings for Lynx PCSs
powerpc: dts: Add compatible strings for Lynx PCSs
Vladimir Oltean (1):
net: dsa: ocelot: suppress PHY device scanning on the internal MDIO
bus
.../devicetree/bindings/net/xilinx,pcs.yaml | 129 ++++
Documentation/networking/index.rst | 1 +
Documentation/networking/kapi.rst | 4 +
Documentation/networking/pcs.rst | 99 +++
MAINTAINERS | 8 +
.../arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 48 +-
.../arm64/boot/dts/freescale/fsl-lx2160a.dtsi | 54 +-
.../dts/freescale/qoriq-fman3-0-10g-0.dtsi | 3 +-
.../dts/freescale/qoriq-fman3-0-10g-1.dtsi | 3 +-
.../dts/freescale/qoriq-fman3-0-1g-0.dtsi | 3 +-
.../dts/freescale/qoriq-fman3-0-1g-1.dtsi | 3 +-
.../dts/freescale/qoriq-fman3-0-1g-2.dtsi | 3 +-
.../dts/freescale/qoriq-fman3-0-1g-3.dtsi | 3 +-
.../dts/freescale/qoriq-fman3-0-1g-4.dtsi | 3 +-
.../dts/freescale/qoriq-fman3-0-1g-5.dtsi | 3 +-
.../fsl/qoriq-fman3-0-10g-0-best-effort.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-0-10g-0.dtsi | 3 +-
.../fsl/qoriq-fman3-0-10g-1-best-effort.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-0-10g-1.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-0-10g-2.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-0-10g-3.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-0-1g-0.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-0-1g-1.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-0-1g-2.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-0-1g-3.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-0-1g-4.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-0-1g-5.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-1-10g-0.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-1-10g-1.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-1-1g-0.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-1-1g-1.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-1-1g-2.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-1-1g-3.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-1-1g-4.dtsi | 3 +-
.../boot/dts/fsl/qoriq-fman3-1-1g-5.dtsi | 3 +-
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 | 51 +-
drivers/net/pcs/Makefile | 4 +
drivers/net/pcs/core.c | 701 ++++++++++++++++++
drivers/net/pcs/pcs-lynx.c | 115 +--
drivers/net/pcs/pcs-xilinx.c | 481 ++++++++++++
drivers/net/phy/mdio_device.c | 1 +
drivers/net/phy/phy_device.c | 3 +-
drivers/net/phy/phylink.c | 24 +-
drivers/of/property.c | 2 +
include/linux/pcs-lynx.h | 13 +-
include/linux/pcs-xilinx.h | 36 +
include/linux/pcs.h | 122 +++
include/linux/phy.h | 1 +
include/linux/phylink.h | 27 +-
70 files changed, 2104 insertions(+), 358 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