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Split/6 rvnic - #232
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Lethe10137 wants to merge 16 commits into
Open
Split/6 rvnic#232Lethe10137 wants to merge 16 commits into
Lethe10137 wants to merge 16 commits into
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Adds rvnic, a virtual NIC backend that replaces veth pairs with a kernel module that exchanges packets with Rattan through shared-memory rings.
- rvnic/librvnic: Rust bindings for the device, UMEM and rings, plus forwarding examples.
- rattan-env/src/env/rvnic: RvnicEnv and the AF_RVNIC driver (feature rvnic). It allocates IPs under a file lock, recycles tokens in batches with a timeout, copies headers back, and logs drop statistics on exit (feature drop-stat).
- src/main-rv.rs: the rattan-rv binary (required-features = ["rvnic"]).
- Per-thread CPU affinity for working threads: cores come from the config's cpu list or RATTAN_CPU, and the thread count can be overridden by RATTAN_WORKING_THREADS.
- scripts/install.sh: install rattan-rv, keep MAC addresses of rattan* devices under systemd-networkd, and make NetworkManager ignore Rattan interfaces.
- The last commit removes the unused busy-polling sender that was added earlier in this PR.