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243ad8df7a
Add a possible_interfaces member to struct phy_device to indicate which interfaces a clause 45 PHY may switch between depending on the media. This must be populated by the PHY driver by the time the .config_init() method completes according to the PHYs host-side configuration. For example, the Marvell 88x3310 PHY can switch between 10GBASE-R, 5GBASE-R, 2500BASE-X, and SGMII on the host side depending on the media side speed, so all these interface modes are set in the possible_interfaces member. This allows phylib users (such as phylink) to know in advance which interface modes to expect, which allows them to appropriately restrict the advertised link modes according to the capabilities of other parts of the link. Tested-by: Luo Jie <quic_luoj@quicinc.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/E1r6VHk-00DDLN-I7@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| arch | ||
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| crypto | ||
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| fs | ||
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| init | ||
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| .clang-format | ||
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| README | ||
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.