d82f28726f
Vladimir Oltean says: ==================== Rate adaptation for Felix DSA switch When operating the MAC at 2.5Gbps (2500Base-X and USXGMII/QSXGMII) and in combination with certain PHYs, it is possible that the copper side may operate at lower link speeds. In this case, it is the PHY who has a MAC inside of it that emits pause frames towards the switch's MAC, telling it to slow down so that the transmission is lossless. These patches are the support needed for the switch side of things to work. ==================== 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.