[PATCH 1/1] RDMA over Fibre Channel

[Christoph Hellwig]

On Wed, Apr 18, 2018 at 05:17:25PM +0530, Muneendra Kumar M wrote:
> Although we concur with the idea of RDMA directly over Fibre channel, the
> actual implementation addressing the above reasons requires
> standardization and coordination with FC HBA vendors and other SAN
> ecosystem players. This effort is ongoing within our organization (Brocade
> at Broadcom).   However, there is a business case for the current soft
> RDMA implementation for FC, i.e. RDMA over FC-NVMe, as it provides
> existing Fibre channel customers a way to utilize existing FC network to
> transport RDMA workloads as well.  While doing this we are making sure
> NVMe block traffic also can happen on the same FC network.

There might be a business case for you, but with my Linux NVMe
(co-)maintainer hat on I'll have to tell you that this abuse of the
Linux nvme code is a complete no-go.

And even if it wasn't we'd still require the protocol be ratified by the
NVMe technical working group first.