76c3a44978
Piergiorgio Beruto says: ==================== net: add PLCA RS support and onsemi NCN26000 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 separate 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. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.