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Message-ID: <20240228114728.51861-1-maxime.chevallier@bootlin.com> Date: Wed, 28 Feb 2024 12:47:14 +0100 From: Maxime Chevallier <maxime.chevallier@...tlin.com> To: davem@...emloft.net Cc: Maxime Chevallier <maxime.chevallier@...tlin.com>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, thomas.petazzoni@...tlin.com, Andrew Lunn <andrew@...n.ch>, Jakub Kicinski <kuba@...nel.org>, Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, Russell King <linux@...linux.org.uk>, linux-arm-kernel@...ts.infradead.org, Christophe Leroy <christophe.leroy@...roup.eu>, Herve Codina <herve.codina@...tlin.com>, Florian Fainelli <f.fainelli@...il.com>, Heiner Kallweit <hkallweit1@...il.com>, Vladimir Oltean <vladimir.oltean@....com>, Köry Maincent <kory.maincent@...tlin.com>, Jesse Brandeburg <jesse.brandeburg@...el.com>, Jonathan Corbet <corbet@....net>, Marek Behún <kabel@...nel.org>, Piergiorgio Beruto <piergiorgio.beruto@...il.com>, Oleksij Rempel <o.rempel@...gutronix.de>, Nicolò Veronese <nicveronese@...il.com>, Simon Horman <horms@...nel.org>, mwojtas@...omium.org Subject: [PATCH net-next v9 00/13] Introduce PHY listing and link_topology tracking Hello everyone, This is V9 for the link topology addition, allowing to track all PHYs that are linked to netdevices. The only change in V9 is the renaming of one of the netlink attributes in the ethtool netlink spec, and a rebase on net-next. As a remainder, here's what the PHY listings would look like : - eth0 has a 88x3310 acting as media converter, and an SFP module with an embedded 88e1111 PHY - eth2 has a 88e1510 PHY # ethtool --show-phys * PHY for eth0: PHY index: 1 Driver name: mv88x3310 PHY device name: f212a600.mdio-mii:00 Downstream SFP bus name: sfp-eth0 PHY id: 0 Upstream type: MAC PHY for eth0: PHY index: 2 Driver name: Marvell 88E1111 PHY device name: i2c:sfp-eth0:16 PHY id: 21040322 Upstream type: PHY Upstream PHY index: 1 Upstream SFP name: sfp-eth0 PHY for eth2: PHY index: 1 Driver name: Marvell 88E1510 PHY device name: f212a200.mdio-mii:00 PHY id: 21040593 Upstream type: MAC Ethtool patches : https://github.com/minimaxwell/ethtool/tree/link-topo-v6 Link to V8: https://lore.kernel.org/netdev/20240220184217.3689988-1-maxime.chevallier@bootlin.com/ Link to V7: https://lore.kernel.org/netdev/20240213150431.1796171-1-maxime.chevallier@bootlin.com/ Link to V6: https://lore.kernel.org/netdev/20240126183851.2081418-1-maxime.chevallier@bootlin.com/ Link to V5: https://lore.kernel.org/netdev/20231221180047.1924733-1-maxime.chevallier@bootlin.com/ Link to V4: https://lore.kernel.org/netdev/20231215171237.1152563-1-maxime.chevallier@bootlin.com/ Link to V3: https://lore.kernel.org/netdev/20231201163704.1306431-1-maxime.chevallier@bootlin.com/ Link to V2: https://lore.kernel.org/netdev/20231117162323.626979-1-maxime.chevallier@bootlin.com/ Link to V1: https://lore.kernel.org/netdev/20230907092407.647139-1-maxime.chevallier@bootlin.com/ Maxime Chevallier (13): net: phy: Introduce ethernet link topology representation net: sfp: pass the phy_device when disconnecting an sfp module's PHY net: phy: add helpers to handle sfp phy connect/disconnect net: sfp: Add helper to return the SFP bus name net: ethtool: Allow passing a phy index for some commands netlink: specs: add phy-index as a header parameter net: ethtool: Introduce a command to list PHYs on an interface netlink: specs: add ethnl PHY_GET command set net: ethtool: plca: Target the command to the requested PHY net: ethtool: pse-pd: Target the command to the requested PHY net: ethtool: cable-test: Target the command to the requested PHY net: ethtool: strset: Allow querying phy stats by index Documentation: networking: document phy_link_topology Documentation/netlink/specs/ethtool.yaml | 62 ++++ Documentation/networking/ethtool-netlink.rst | 46 +++ Documentation/networking/index.rst | 1 + .../networking/phy-link-topology.rst | 121 +++++++ MAINTAINERS | 2 + drivers/net/phy/Makefile | 2 +- drivers/net/phy/marvell-88x2222.c | 2 + drivers/net/phy/marvell.c | 2 + drivers/net/phy/marvell10g.c | 2 + drivers/net/phy/phy_device.c | 55 ++++ drivers/net/phy/phy_link_topology.c | 105 +++++++ drivers/net/phy/phylink.c | 3 +- drivers/net/phy/qcom/at803x.c | 2 + drivers/net/phy/qcom/qca807x.c | 2 + drivers/net/phy/sfp-bus.c | 15 +- include/linux/netdevice.h | 4 +- include/linux/phy.h | 6 + include/linux/phy_link_topology.h | 72 +++++ include/linux/phy_link_topology_core.h | 25 ++ include/linux/sfp.h | 8 +- include/uapi/linux/ethtool.h | 16 + include/uapi/linux/ethtool_netlink.h | 21 ++ net/core/dev.c | 9 + net/ethtool/Makefile | 2 +- net/ethtool/cabletest.c | 16 +- net/ethtool/netlink.c | 53 +++- net/ethtool/netlink.h | 10 + net/ethtool/phy.c | 297 ++++++++++++++++++ net/ethtool/plca.c | 19 +- net/ethtool/pse-pd.c | 13 +- net/ethtool/strset.c | 17 +- 31 files changed, 967 insertions(+), 43 deletions(-) create mode 100644 Documentation/networking/phy-link-topology.rst create mode 100644 drivers/net/phy/phy_link_topology.c create mode 100644 include/linux/phy_link_topology.h create mode 100644 include/linux/phy_link_topology_core.h create mode 100644 net/ethtool/phy.c -- 2.43.2
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