Date: Mon, 11 Apr 2016 22:36:17 -0600 From: Warner Losh <imp@bsdimp.com> To: Navdeep Parhar <navdeep@chelsio.com> Cc: Jim Harris <jimharris@freebsd.org>, Meny Yossefi <menyy@mellanox.com>, "hselasky@freebsd.org" <hselasky@freebsd.org>, "info@freebsdfoundation.org" <info@freebsdfoundation.org>, Oded Shanoon <odeds@mellanox.com>, Hans Petter Selasky <hanss@mellanox.com>, "freebsd-drivers@freebsd.org" <freebsd-drivers@freebsd.org>, Oren Duer <oren@mellanox.com>, Warner Losh <imp@freebsd.org>, Max Gurtovoy <maxg@mellanox.com>, "trasz@FreeBSD.org" <trasz@freebsd.org> Subject: Re: NVMe over fabrics support in FreeBSD Message-ID: <CANCZdfpXuphhCzWRftTGNzeg=vbZFhfueh3DuaA-gf8NS93yYA@mail.gmail.com> In-Reply-To: <570C0289.6070707@chelsio.com> References: <DB5PR05MB1765396247B6E5E2912ACD3AC3940@DB5PR05MB1765.eurprd05.prod.outlook.com> <CAJP=Hc-=bY56YNoi=NjWfUDe5j=OeKFLfmJ6TPM4MrvsGb-z9g@mail.gmail.com> <570C0289.6070707@chelsio.com>
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On Mon, Apr 11, 2016 at 2:01 PM, Navdeep Parhar <navdeep@chelsio.com> wrote: > On 04/11/2016 11:01, Jim Harris wrote: > > On Mon, Apr 11, 2016 at 7:24 AM, Meny Yossefi <menyy@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
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