[MayeulC]

Hmm, coing PCIe -> NIC -> NIC -> PCIe seems a bit silly, couldn't both devices communicate directly over PCIe?

[wmf]

You need Non-Transparent Bridging (NTB) for that; I don't know if AMD has it.

[Tepix]

Ideally Linux would add support for RDMA via Thunderbolt.