I have often thought that the best way to implement a multi-core capable cake was to bypass bql, qdisc, and ethernet driver entirely, writing something like the carousel virtualized driver described here: https://dl.acm.org/doi/abs/10.1145/3098822.3098852
---------- Forwarded message --------- From: FUJITA Tomonori <fujita.tomon...@gmail.com> Date: Mon, Jul 10, 2023 at 1:39 AM Subject: [PATCH v2 0/5] Rust abstractions for network device drivers To: <rust-for-li...@vger.kernel.org>, <net...@vger.kernel.org> Cc: <k...@kernel.org>, <and...@lunn.ch>, <alicer...@google.com>, <miguel.ojeda.sando...@gmail.com>, <benno.los...@proton.me> This patchset adds minimum Rust abstractions for network device drivers and an example of a Rust network device driver, a simpler version of drivers/net/dummy.c. The major change is a way to drop an skb (1/5 patch); a driver needs to explicitly call a function to drop a skb. The code to let a skb go out of scope can't be compiled. I dropped get_stats64 support patch that the current sample driver doesn't use. Instead I added a patch to update the NETWORKING DRIVERS entry in MAINTAINERS. Changes since v1 [1]: - a driver must explicitly call a function to drop a skb. - simplify the code (thanks to Benno Lossin). - update MAINTAINERS file. [1] https://lwn.net/ml/netdev/20230613045326.3938283-1-fujita.tomon...@gmail.com/ FUJITA Tomonori (5): rust: core abstractions for network device drivers rust: add support for ethernet operations rust: add methods for configure net_device samples: rust: add dummy network driver MAINTAINERS: add Rust network abstractions files to the NETWORKING DRIVERS entry MAINTAINERS | 2 + rust/bindings/bindings_helper.h | 3 + rust/helpers.c | 23 ++ rust/kernel/lib.rs | 3 + rust/kernel/net.rs | 5 + rust/kernel/net/dev.rs | 598 ++++++++++++++++++++++++++++++++ samples/rust/Kconfig | 13 + samples/rust/Makefile | 1 + samples/rust/rust_net_dummy.rs | 75 ++++ scripts/Makefile.build | 2 +- 10 files changed, 724 insertions(+), 1 deletion(-) create mode 100644 rust/kernel/net.rs create mode 100644 rust/kernel/net/dev.rs create mode 100644 samples/rust/rust_net_dummy.rs base-commit: d2e3115d717197cb2bc020dd1f06b06538474ac3 -- 2.34.1 -- Podcast: https://www.linkedin.com/feed/update/urn:li:activity:7058793910227111937/ Dave Täht CSO, LibreQos _______________________________________________ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake