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Vladimir Oltean says: ==================== Remove phylink_validate() from Felix DSA driver The Felix DSA driver still uses its own phylink_validate() procedure rather than the (relatively newly introduced) phylink_generic_validate() because the latter did not cater for the case where a PHY provides rate matching between the Ethernet cable side speed and the SERDES side speed (and does not advertise other speeds except for the SERDES speed). This changed with Sean Anderson's generic support for rate matching PHYs in phylib and phylink: https://patchwork.kernel.org/project/netdevbpf/cover/20220920221235.1487501-1-sean.anderson@seco.com/ Building upon that support, this patch set makes Linux understand that the PHYs used in combination with the Felix DSA driver (SCH-30841 riser card with AQR412 PHY, used with SERDES protocol 0x7777 - 4x2500base-x, plugged into LS1028A-QDS) do support PAUSE rate matching. This requires Aquantia PHY driver support for new PHY IDs. To activate the rate matching support in phylink, config->mac_capabilities must be populated. Coincidentally, this also opts the Felix driver into the generic phylink validation. Next, code that is no longer necessary is eliminated. This includes the Felix driver validation procedures for VSC9959 and VSC9953, the workaround in the Ocelot switch library to leave RX flow control always enabled, as well as DSA plumbing necessary for a custom phylink validation procedure to be propagated to the hardware driver level. Many thanks go to Sean Anderson for providing generic support for rate matching. ==================== Link: https://lore.kernel.org/r/20221114170730.2189282-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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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.