[Feature]: Support P/D disaggregation via RDMA over thunderbolt

[tlrmchlsmth]

See: https://developer.apple.com/documentation/macos-release-notes/macos-26_2-release-notes#RDMA-over-Thunderbolt

[ericcurtin]

Neat idea. We would need someone with the hardware setup to test it (at least I don't have it).

[WindChimeRan]

see: https://github.com/exo-explore/exo

and blog: https://www.jeffgeerling.com/blog/2025/15-tb-vram-on-mac-studio-rdma-over-thunderbolt-5

[IlyasFardaouix]

Based on the recent discussion and the provided source code, it seems like we're missing a concrete implementation for RDMA over Thunderbolt. To get started, I'd like to clarify: have you taken a look at the mlx.core module, specifically the mlx.random submodule, which might be a good place to start experimenting with RDMA?