On Wed, Jun 11, 2025 at 04:29:58PM -0400, Jeff Layton wrote: > I think if we can crack the problem of receiving WRITE payloads into an > already-aligned buffer, then that becomes much more feasible. I think > that's a solveable problem. It's called RDMA :) To place write payloads into page aligned buffer, the NIC needs to split the various headers from the payload. The data placement part of RDMA naturally takes care of that. If you want to do it without TCP, you need hardware that is aware of the protocol headers up to the XDR level. I know and the days where NFS was a big thing there were NICs that could do this offload with the right firmware, and I wouldn't be surprised if that's still the case.
