Re: [PATCH 1/4] sunrpc: flag transports as using IETF approved congestion control protocols

Jason Gunthorpe
2017-02-24T18:03:23Z

> I'd rather rely on those attributes instead of any sort of IETF
> approval anyway. Do all RDMA transports (RoCEv2, in particular) have
> those characteristics?

The NFS-RDMA driver only works with RDMA RC transports which are
defined to provide all those characteristics.

> In any case, for now I think we should just give all RDMA transports a
> pass, and clean that up later. I'm mostly interested in excluding UDP
> over IP for now -- being more strict with RDMA can come later.

Makes sense to me. At the end of the day I think everything supported
by NFS-RDMA should be permitted to use NFSv4, and we should ignore
sketchy spec language that suggests otherwise.

Jason