Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / ABI / testing / sysfs-bus-mdio

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+What:          /sys/bus/mdio_bus/devices/.../phy_id
+Date:          November 2012
+KernelVersion: 3.8
+Contact:       netdev@vger.kernel.org
+Description:
+               This attribute contains the 32-bit PHY Identifier as reported
+               by the device during bus enumeration, encoded in hexadecimal.
+               This ID is used to match the device with the appropriate
+               driver.
+
+What:          /sys/bus/mdio_bus/devices/.../phy_interface
+Date:          February 2014
+KernelVersion: 3.15
+Contact:       netdev@vger.kernel.org
+Description:
+               This attribute contains the PHY interface as configured by the
+               Ethernet driver during bus enumeration, encoded in string.
+               This interface mode is used to configure the Ethernet MAC with the
+               appropriate mode for its data lines to the PHY hardware.
+
+What:          /sys/bus/mdio_bus/devices/.../phy_has_fixups
+Date:          February 2014
+KernelVersion: 3.15
+Contact:       netdev@vger.kernel.org
+Description:
+               This attribute contains the boolean value whether a given PHY
+               device has had any "fixup" workaround running on it, encoded as
+               a boolean. This information is provided to help troubleshooting
+               PHY configurations.