net: support time stamping in phy devices.

[mirror_ubuntu-bionic-kernel.git] / include / linux / phy.h

diff --git a/include/linux/phy.h b/include/linux/phy.h
index d63736a84002e3c1a1945e616158cf734fe2b510..6b0a782c6224f60d4530139a90ebc479ac6b3513 100644 (file)
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -234,6 +234,8 @@ enum phy_state {
        PHY_RESUMING
 };
 
+struct sk_buff;
+
 /* phy_device: An instance of a PHY
  *
  * drv: Pointer to the driver for this PHY instance
@@ -402,6 +404,26 @@ struct phy_driver {
        /* Clears up any memory if needed */
        void (*remove)(struct phy_device *phydev);
 
+       /* Handles SIOCSHWTSTAMP ioctl for hardware time stamping. */
+       int  (*hwtstamp)(struct phy_device *phydev, struct ifreq *ifr);
+
+       /*
+        * Requests a Rx timestamp for 'skb'. If the skb is accepted,
+        * the phy driver promises to deliver it using netif_rx() as
+        * soon as a timestamp becomes available. One of the
+        * PTP_CLASS_ values is passed in 'type'. The function must
+        * return true if the skb is accepted for delivery.
+        */
+       bool (*rxtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
+
+       /*
+        * Requests a Tx timestamp for 'skb'. The phy driver promises
+        * to deliver it to the socket's error queue as soon as a
+        * timestamp becomes available. One of the PTP_CLASS_ values
+        * is passed in 'type'.
+        */
+       void (*txtstamp)(struct phy_device *dev, struct sk_buff *skb, int type);
+
        struct device_driver driver;
 };
 #define to_phy_driver(d) container_of(d, struct phy_driver, driver)