Commit ffd2747d authored by FUJITA Tomonori's avatar FUJITA Tomonori Committed by David S. Miller
Browse files

rust: net::phy support probe callback 



Support phy_driver probe callback, used to set up device-specific
structures.

Reviewed-by: default avatarAlice Ryhl <aliceryhl@google.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Reviewed-by: default avatarBenno Lossin <benno.lossin@proton.me>
Reviewed-by: default avatarTrevor Gross <tmgross@umich.edu>
Signed-off-by: default avatarFUJITA Tomonori <fujita.tomonori@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4d080a02

rust/kernel/net/phy.rs

+25 −0
Original line number Diff line number Diff line
@@ -338,6 +338,21 @@ impl<T: Driver> Adapter<T> { 
        })

    }



    /// # Safety

    ///

    /// `phydev` must be passed by the corresponding callback in `phy_driver`.

    unsafe extern "C" fn probe_callback(phydev: *mut bindings::phy_device) -> core::ffi::c_int {

        from_result(|| {

            // SAFETY: This callback is called only in contexts

            // where we can exclusively access `phy_device` because

            // it's not published yet, so the accessors on `Device` are okay

            // to call.

            let dev = unsafe { Device::from_raw(phydev) };

            T::probe(dev)?;

            Ok(0)

        })

    }



    /// # Safety

    ///

    /// `phydev` must be passed by the corresponding callback in `phy_driver`.
@@ -511,6 +526,11 @@ pub const fn create_phy_driver<T: Driver>() -> DriverVTable { 
        } else {

            None

        },

        probe: if T::HAS_PROBE {

            Some(Adapter::<T>::probe_callback)

        } else {

            None

        },

        get_features: if T::HAS_GET_FEATURES {

            Some(Adapter::<T>::get_features_callback)

        } else {
@@ -583,6 +603,11 @@ fn soft_reset(_dev: &mut Device) -> Result { 
        kernel::build_error(VTABLE_DEFAULT_ERROR)

    }



    /// Sets up device-specific structures during discovery.

    fn probe(_dev: &mut Device) -> Result {

        kernel::build_error(VTABLE_DEFAULT_ERROR)

    }



    /// Probes the hardware to determine what abilities it has.

    fn get_features(_dev: &mut Device) -> Result {

        kernel::build_error(VTABLE_DEFAULT_ERROR)