Hi All, I would like to propose a session on the Rust block device driver APIs. I submitted the APIs along with a simple null block driver as an RFC last year [1]. Since then I have kept the code in sync with latest mainline release [2], cleaned up the code, and added a few features. After talking to some of you at various meetups over the past year, I think we have reached a point where we can potentially agree on merging initial Rust block layer support, along with the null block driver. To that end, I plan to send a few iterations of the patch set before LSF in May, so that we can use the session to discuss any remaining details. Since Kent has also proposed a dedicated Rust session, we might find some synergy with this topic [3]. I also maintain an NVMe driver based on the Rust block APIs [4]. Due to community feedback, I have no plans for upstreaming this driver at the moment. However, it is a valuable tool for designing a sensible Rust block device API that is suitable real hardware. Part of the NVMe patches are abstractions for PCI. Other users (drm) have expressed interest in these, so I plan to separate these in their own tree to make them easier to pick up for those users. As a last note, I have recently become aware of ongoing work on implementing nbd in Rust. The work looks promising, and I hope the author will decide to send the patches, when they are ready to be shared. Best regards Andreas Hindborg [1] https://lore.kernel.org/all/20230503090708.2524310-1-nmi@xxxxxxxxxxxx/ [2] https://rust-for-linux.com/null-block-driver [3] https://lore.kernel.org/all/wjtuw2m3ojn7m6gx2ozyqtvlsetzwxv5hdhg2hocal3gyou3ue@34e37oox4d5m/ [4] https://rust-for-linux.com/nvme-driver
