e3b6876ab8
MAC drivers which support EEE need to know the results of the EEE auto-neg in order to program the hardware to perform EEE or not. The oddly named phy_init_eee() can be used to determine this, it returns 0 if EEE should be used, or a negative error code, e.g. -EOPPROTONOTSUPPORT if the PHY does not support EEE or negotiate resulted in it not being used. However, many MAC drivers get this wrong. Add phydev->enable_tx_lpi which indicates the result of the autoneg for EEE, including if EEE is administratively disabled with ethtool. The MAC driver can then access this in the same way as link speed and duplex in the adjust link callback. If enable_tx_lpi is true, the MAC should send low power indications and does not need to consider anything else with respect to EEE. Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Link: https://lore.kernel.org/r/20240302195306.3207716-3-o.rempel@pengutronix.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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.