From 5f2c540d99770539a30e32c51b211466b8cf5fd0 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Wed, 10 Mar 2021 14:12:43 -0800 Subject: net: phy: Expose phydev::dev_flags through sysfs commit b0bade515d360800fc701e1a965cf41adcc4ec1b upstream phydev::dev_flags contains a bitmask of configuration bits requested by the consumer of a PHY device (Ethernet MAC or switch) towards the PHY driver. Since these flags are often used for requesting LED or other type of configuration being able to quickly audit them without instrumenting the kernel is useful. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- Documentation/ABI/testing/sysfs-class-net-phydev | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/sysfs-class-net-phydev b/Documentation/ABI/testing/sysfs-class-net-phydev index 206cbf538b59..0a9943a37291 100644 --- a/Documentation/ABI/testing/sysfs-class-net-phydev +++ b/Documentation/ABI/testing/sysfs-class-net-phydev @@ -49,3 +49,15 @@ Description: Boolean value indicating whether the PHY device is used in standalone mode, without a net_device associated, by PHYLINK. Attribute created only when this is the case. + +What: /sys/class/mdio_bus///phy_dev_flags +Date: March 2021 +KernelVersion: 5.13 +Contact: netdev@vger.kernel.org +Description: + 32-bit hexadecimal number representing a bit mask of the + configuration bits passed from the consumer of the PHY + (Ethernet MAC, switch, etc.) to the PHY driver. The flags are + only used internally by the kernel and their placement are + not meant to be stable across kernel versions. This is intended + for facilitating the debugging of PHY drivers. -- cgit v1.2.3