NVMe over fabrics support in FreeBSD

[Warner Losh]

On Mon, Apr 11, 2016 at 2:01 PM, Navdeep Parhar <navdeep at chelsio.com> wrote:

> On 04/11/2016 11:01, Jim Harris wrote:
> > On Mon, Apr 11, 2016 at 7:24 AM, Meny Yossefi <menyy at mellanox.com>
> wrote:
> >
> >> Hi,
> >>
> >> As you may be aware, in the last year or so a group of companies
> (Mellanox
> >> included) are defining the NVMe-over-fabric spec, and also developing
> the
> >> Linux drivers implementation (both initiator and target).
> >>
> >
> > Hi Meny,
> >
> > The spec is about to be finalized (next Q), and with that the code
> >> developed will become open source and available, under the GPL license.
> >>
> >> What are FreeBSD plans to support NVMe-over-fabrics?
> >>
> >
> > I am not aware of anyone working on NVMe-over-fabrics initiator support.
> > I've copied Warner Losh (imp@) who has also been doing some work on
> nvme(4)
> > in case he is aware of something going on here.
> >
> > For NVMe-over-fabrics target support, we at Intel are working on an SPDK
> > userspace NVMe-over-fabrics target that should work on FreeBSD.  I am not
> > aware of any in-tree FreeBSD NVMe-over-fabrics target work going on
> however.
> >
> >
> >> Is there a parallel effort happening or planned to happen as soon as the
> >> spec becomes available?
> >> Is there a plan/facility to allow the GPL Linux code ported to FreeBSD?
> >>
> >
> > Not really.  I think we would need the Linux code relicensed to BSD (or
> > dual GPL/BSD) to allow porting to FreeBSD.
>
> +1.  We (Chelsio) have a working NVMe over fabrics implementation as
> well and would be interested in getting it to run on FreeBSD.
>

While I've done a CAM front end to replace nvd, I've done nothing with
fabrics. However, it seems like a good fit to CAM...

Warner