NFS over RDMA testing

From: Rick Macklem <rick.macklem_at_gmail.com>
Date: Fri, 09 Oct 2026 21:26:32 UTC
Hi,

Thanks to Vinicius Ferrao <ferrao@versatushpc.com.br>, sponsored by
Versatus HPC, there is now a kernel loadable module that provides
NFS over RDMA support for the NFS server.

I have also created a loadable module that provides NFS client side
support for RDMA.

If you are interested in testing (or looking at the sourecs), see..
htps://people.freebsd.org/~rmacklem/nfs-over-rdma-setup.txt

To test you will need a couple of systems with Mellanox ConnectX4->6
NICs running a kernel built from up to date FreeBSD main sources.
(The "glue" that supports these modules should be in stable/15 in a
few weeks.)

Third party testing would be appreciated, rick