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Jeff Kirsher says: ==================== 1GbE Intel Wired LAN Driver Updates 2020-01-06 This series contains updates to igc to add basic support for timestamping. Vinicius adds basic support for timestamping and enables ptp4l/phc2sys to work with i225 devices. Initially, adds the ability to read and adjust the PHC clock. Patches 2 & 3 enable and retrieve hardware timestamps. Patch 4 implements the ethtool ioctl that ptp4l uses to check what timestamping methods are supported. Lastly, added support to do timestamping using the "Start of Packet" signal from the PHY, which is now supported in i225 devices. While i225 does support multiple PTP domains, with multiple timestamping registers, we currently only support one PTP domain and use only one of the timestamping registers for implementation purposes. ==================== 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.