Messages in this thread |  | | Date | Sun, 4 Dec 2022 03:29:30 +0100 | From | Piergiorgio Beruto <> | Subject | [PATCH net-next 0/4] add PLCA RS support and onsemi NCN26000 |
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This patchset adds support for getting/setting the Physical Layer Collision Avoidace (PLCA) Reconciliation Sublayer (RS) configuration and status on Ethernet PHYs that supports it.
PLCA is a feature that provides improved media-access performance in terms of throughput, latency and fairness for multi-drop (P2MP) half-duplex PHYs. PLCA is defined in Clause 148 of the IEEE802.3 specifications as amended by 802.3cg-2019. Currently, PLCA is supported by the 10BASE-T1S single-pair Ethernet PHY defined in the same standard and related amendments. The OPEN Alliance SIG TC14 defines additional specifications for the 10BASE-T1S PHY, including a standard register map for PHYs that embeds the PLCA RS (see PLCA management registers at https://www.opensig.org/about/specifications/).
The changes proposed herein add the appropriate ethtool netlink interface for configuring the PLCA RS on PHYs that supports it. A seperate patchset further modifies the ethtool userspace program to show and modify the configuration/status of the PLCA RS.
Additionally, this patchset adds support for the onsemi NCN26000 Industrial Ethernet 10BASE-T1S PHY that uses the newly added PLCA infrastructure.
Piergiorgio Beruto (4): net/ethtool: Add netlink interface for the PLCA RS phylib: Add support for 10BASE-T1S link modes and PLCA config drivers/net/phy: Add driver for the onsemi NCN26000 10BASE-T1S PHY driver/ncn26000: add PLCA support
MAINTAINERS | 13 ++ drivers/net/phy/Kconfig | 7 + drivers/net/phy/Makefile | 1 + drivers/net/phy/ncn26000.c | 209 +++++++++++++++++++ drivers/net/phy/phy-c45.c | 187 +++++++++++++++++ drivers/net/phy/phy-core.c | 2 +- drivers/net/phy/phy.c | 179 +++++++++++++++++ drivers/net/phy/phy_device.c | 3 + drivers/net/phy/phylink.c | 6 +- include/linux/ethtool.h | 11 + include/linux/phy.h | 81 ++++++++ include/uapi/linux/ethtool.h | 3 + include/uapi/linux/ethtool_netlink.h | 25 +++ include/uapi/linux/mdio.h | 31 +++ net/ethtool/Makefile | 2 +- net/ethtool/common.c | 8 + net/ethtool/netlink.c | 30 +++ net/ethtool/netlink.h | 6 + net/ethtool/plca.c | 290 +++++++++++++++++++++++++++ 19 files changed, 1091 insertions(+), 3 deletions(-) create mode 100644 drivers/net/phy/ncn26000.c create mode 100644 net/ethtool/plca.c
-- 2.35.1
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