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Message-ID: <20240821151009.1681151-1-maxime.chevallier@bootlin.com> Date: Wed, 21 Aug 2024 17:09:54 +0200 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>, 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, Nathan Chancellor <nathan@...nel.org>, Antoine Tenart <atenart@...nel.org>, Marc Kleine-Budde <mkl@...gutronix.de>, Dan Carpenter <dan.carpenter@...aro.org>, Romain Gantois <romain.gantois@...tlin.com> Subject: [PATCH net-next v18 00/13] Introduce PHY listing and link_topology tracking Hello everyone, This is V18 of the phy_link_topology series, aiming at improving support for multiple PHYs being attached to the same MAC. V18 is a simple rebase of the V17 on top of net-next, gathering the tested-by and reviewed-by tags from Christophe (thanks !). This iteration is also one patch shorter than V17 (patch 12/14 in V17 is gone), as one of the patches used to fix an issue that has now been resolved by Simon Horman in 743ff02152bc ethtool: Don't check for NULL info in prepare_data callbacks 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 Upstream type: MAC PHY for eth0: PHY index: 2 Driver name: Marvell 88E1111 PHY device name: i2c:sfp-eth0:16 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 Upstream type: MAC Ethtool patches : https://github.com/minimaxwell/ethtool/tree/mc/topo-v16 (this branch is compatible with this V18 series) Link to V17: https://lore.kernel.org/netdev/20240709063039.2909536-1-maxime.chevallier@bootlin.com/ Link to V16: https://lore.kernel.org/netdev/20240705132706.13588-1-maxime.chevallier@bootlin.com/ Link to V15: https://lore.kernel.org/netdev/20240703140806.271938-1-maxime.chevallier@bootlin.com/ Link to V14: https://lore.kernel.org/netdev/20240701131801.1227740-1-maxime.chevallier@bootlin.com/ Link to V13: https://lore.kernel.org/netdev/20240607071836.911403-1-maxime.chevallier@bootlin.com/ Link to v12: https://lore.kernel.org/netdev/20240605124920.720690-1-maxime.chevallier@bootlin.com/ Link to v11: https://lore.kernel.org/netdev/20240404093004.2552221-1-maxime.chevallier@bootlin.com/ Link to V10: https://lore.kernel.org/netdev/20240304151011.1610175-1-maxime.chevallier@bootlin.com/ Link to V9: https://lore.kernel.org/netdev/20240228114728.51861-1-maxime.chevallier@bootlin.com/ 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/ More discussions on specific issues that happened in 6.9-rc: https://lore.kernel.org/netdev/20240412104615.3779632-1-maxime.chevallier@bootlin.com/ https://lore.kernel.org/netdev/20240429131008.439231-1-maxime.chevallier@bootlin.com/ https://lore.kernel.org/netdev/20240507102822.2023826-1-maxime.chevallier@bootlin.com/ Thanks, Maxime 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 | 58 ++++ Documentation/networking/ethtool-netlink.rst | 51 +++ Documentation/networking/index.rst | 1 + .../networking/phy-link-topology.rst | 121 +++++++ MAINTAINERS | 1 + 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 | 48 +++ 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 | 26 +- include/linux/netdevice.h | 4 +- include/linux/phy.h | 6 + include/linux/phy_link_topology.h | 82 +++++ include/linux/sfp.h | 8 +- include/uapi/linux/ethtool.h | 16 + include/uapi/linux/ethtool_netlink.h | 20 ++ net/core/dev.c | 15 + net/ethtool/Makefile | 3 +- net/ethtool/cabletest.c | 35 +- net/ethtool/netlink.c | 66 +++- net/ethtool/netlink.h | 33 ++ net/ethtool/phy.c | 308 ++++++++++++++++++ net/ethtool/plca.c | 30 +- net/ethtool/pse-pd.c | 31 +- net/ethtool/strset.c | 24 +- 30 files changed, 1056 insertions(+), 51 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 net/ethtool/phy.c -- 2.45.2
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