Hello everyone, This series follows the 2 RFC that were sent a few weeks ago : RFC V2: https://lore.kernel.org/netdev/20250122174252.82730-1-maxime.chevallier@xxxxxxxxxxx/ RFC V1: https://lore.kernel.org/netdev/20241220201506.2791940-1-maxime.chevallier@xxxxxxxxxxx/ The goal of this series is to introduce an internal way of representing the "outputs" of ethernet devices, for now only focusing on PHYs. This allows laying the groundwork for multi-port devices support (both 1 PHY 2 ports, or more exotic setups with 2 PHYs in parallel, or MII multiplexers). Compared to the RFCs, this series tries to properly support SFP, especially PHY-driven SFPs through special phy_ports named "serdes" ports. They have the particularity of outputing a generic interface, that feeds into another component (usually, an SFP cage and therefore an SFP module). This allows getting a fairly generic PHY-driven SFP support (MAC-driven SFP is handled by phylink). This series doesn't address PHY-less interfaces (bare MAC devices, MACs with embedded PHYs not driven by phylink, or MAC connected to optical SFPs) to stay within the 15 patches limit, nor does it include the uAPI part that exposes these ports to userspace. I've kept the cover short, much more details can be found in the RFC covers. Thanks everyone, Maxime Maxime Chevallier (13): net: ethtool: Introduce ETHTOOL_LINK_MEDIUM_* values net: ethtool: Export the link_mode_params definitions net: phy: Introduce PHY ports representation net: phy: dp83822: Add support for phy_port representation net: phy: Create a phy_port for PHY-driven SFPs net: phy: Intrduce generic SFP handling for PHY drivers net: phy: marvell-88x2222: Support SFP through phy_port interface net: phy: marvell: Support SFP through phy_port interface net: phy: marvell10g: Support SFP through phy_port net: phy: at803x: Support SFP through phy_port interface net: phy: Only rely on phy_port for PHY-driven SFP net: phy: dp83822: Add SFP support through the phy_port interface dt-bindings: net: Introduce the phy-port description .../devicetree/bindings/net/ethernet-phy.yaml | 18 + .../bindings/net/ethernet-port.yaml | 47 +++ drivers/net/phy/Makefile | 2 +- drivers/net/phy/dp83822.c | 71 ++-- drivers/net/phy/marvell-88x2222.c | 96 +++--- drivers/net/phy/marvell.c | 100 +++--- drivers/net/phy/marvell10g.c | 37 +-- drivers/net/phy/phy_device.c | 307 +++++++++++++++++- drivers/net/phy/phy_port.c | 176 ++++++++++ drivers/net/phy/phylink.c | 32 ++ drivers/net/phy/qcom/at803x.c | 64 +--- include/linux/ethtool.h | 73 +++++ include/linux/phy.h | 39 ++- include/linux/phy_port.h | 92 ++++++ include/linux/phylink.h | 2 + net/ethtool/common.c | 231 ++++++------- net/ethtool/common.h | 7 - 17 files changed, 1048 insertions(+), 346 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/ethernet-port.yaml create mode 100644 drivers/net/phy/phy_port.c create mode 100644 include/linux/phy_port.h -- 2.48.1
