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Message-Id: <20231024005842.1059620-1-fujita.tomonori@gmail.com> Date: Tue, 24 Oct 2023 09:58:37 +0900 From: FUJITA Tomonori <fujita.tomonori@...il.com> To: netdev@...r.kernel.org Cc: rust-for-linux@...r.kernel.org, andrew@...n.ch, tmgross@...ch.edu, miguel.ojeda.sandonis@...il.com, benno.lossin@...ton.me, wedsonaf@...il.com, greg@...ah.com Subject: [PATCH net-next v6 0/5] Rust abstractions for network PHY drivers This patchset adds Rust abstractions for phylib. It doesn't fully cover the C APIs yet but I think that it's already useful. I implement two PHY drivers (Asix AX88772A PHYs and Realtek Generic FE-GE). Seems they work well with real hardware. The first patch introduces Rust bindings for phylib. The second patch add a macro to declare a kernel module for PHYs drivers. The third patch add Miguel's work to make sure that the C's enum is sync with Rust sides. If not, compiling fails. Note that this is a temporary solution. It will be replaced with bindgen when it supports generating the enum conversion code. The fourth add the Rust ETHERNET PHY LIBRARY entry to MAINTAINERS file; adds the binding file and me as a maintainer (as Andrew Lunn suggested) with Trevor Gross as a reviewer. The last patch introduces the Rust version of Asix PHY drivers, drivers/net/phy/ax88796b.c. The features are equivalent to the C version. You can choose C (by default) or Rust version on kernel configuration. v6: - improves comments - makes the requirement of phy_drivers_register clear - fixes Makefile of the third patch v5: https://lore.kernel.org/all/20231019.094147.1808345526469629486.fujita.tomonori@gmail.com/T/ - drops the rustified-enum option, writes match by hand; no *risk* of UB - adds Miguel's patch for enum checking - moves CONFIG_RUST_PHYLIB_ABSTRACTIONS to drivers/net/phy/Kconfig - adds a new entry for this abstractions in MAINTAINERS - changes some of Device's methods to take &mut self - comment improvment v4: https://lore.kernel.org/netdev/20231012125349.2702474-1-fujita.tomonori@gmail.com/T/ - split the core patch - making Device::from_raw() private - comment improvement with code update - commit message improvement - avoiding using bindings::phy_driver in public functions - using an anonymous constant in module_phy_driver macro v3: https://lore.kernel.org/netdev/20231011.231607.1747074555988728415.fujita.tomonori@gmail.com/T/ - changes the base tree to net-next from rust-next - makes this feature optional; only enabled with CONFIG_RUST_PHYLIB_BINDINGS=y - cosmetic code and comment improvement - adds copyright v2: https://lore.kernel.org/netdev/20231006094911.3305152-2-fujita.tomonori@gmail.com/T/ - build failure fix - function renaming v1: https://lore.kernel.org/netdev/20231002085302.2274260-3-fujita.tomonori@gmail.com/T/ FUJITA Tomonori (4): rust: core abstractions for network PHY drivers rust: net::phy add module_phy_driver macro MAINTAINERS: add Rust PHY abstractions for ETHERNET PHY LIBRARY net: phy: add Rust Asix PHY driver Miguel Ojeda (1): rust: add second `bindgen` pass for enum exhaustiveness checking MAINTAINERS | 16 + drivers/net/phy/Kconfig | 16 + drivers/net/phy/Makefile | 6 +- drivers/net/phy/ax88796b_rust.rs | 129 +++++ rust/.gitignore | 1 + rust/Makefile | 14 + rust/bindings/bindings_enum_check.rs | 36 ++ rust/bindings/bindings_helper.h | 3 + rust/kernel/lib.rs | 3 + rust/kernel/net.rs | 6 + rust/kernel/net/phy.rs | 837 +++++++++++++++++++++++++++ rust/uapi/uapi_helper.h | 2 + 12 files changed, 1068 insertions(+), 1 deletion(-) create mode 100644 drivers/net/phy/ax88796b_rust.rs create mode 100644 rust/bindings/bindings_enum_check.rs create mode 100644 rust/kernel/net.rs create mode 100644 rust/kernel/net/phy.rs base-commit: f4dbc2bb7a54d3bff234a9f1915f1b7187bedb1f -- 2.34.1
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