From owner-freebsd-drivers@freebsd.org Mon Apr 11 18:01:49 2016 Return-Path: Delivered-To: freebsd-drivers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 832B1B0C829 for ; Mon, 11 Apr 2016 18:01:49 +0000 (UTC) (envelope-from jim.harris@gmail.com) Received: from mail-wm0-x22b.google.com (mail-wm0-x22b.google.com [IPv6:2a00:1450:400c:c09::22b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 196531569; Mon, 11 Apr 2016 18:01:49 +0000 (UTC) (envelope-from jim.harris@gmail.com) Received: by mail-wm0-x22b.google.com with SMTP id a140so23244215wma.0; Mon, 11 Apr 2016 11:01:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc; bh=NzeJwEB2OlmdJZ/zvHmmM4FebUkzRI09X4MngFIsCY4=; b=hOW2WdDIyhJuVbHvlLqNMC9pV0EshiiLv/x8EKMvh5iGJ+dHrsN/ppCGOhQ804wDpB nvx4QbuTAEzEP5x8Ua/l5l+RMSuzLwjdNlLng2hdmAAp7MC9dnI1gz23csxwxA33Z6/W gf1KmfmKCgEEJkiyU9lbj5ZD7y9pqHjq78fzmdvxFwQPrM/NFTyVdXzo2wuPH/toVM0w Z+GeCn5GD3cURc6jWMiYAPcoSvFEeAxxvtP7Gi0x9bcJ7Q5viT9kTqv+G4c8nr5QPbtp 0aE7yVws7X5+ApcdIndpn+Z2QbqXeIKMN1o+OL8yqsImsrNm6x92P2TmKh5hgbfqbO3U vwxw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:in-reply-to:references:date :message-id:subject:from:to:cc; bh=NzeJwEB2OlmdJZ/zvHmmM4FebUkzRI09X4MngFIsCY4=; b=F/8/cIyjRBzMHLpMHVKenU5KW/ELNPcKj71zhrC67Z6m0WHAc+PCu3EtOXGEis9M9W qdKHXO4ZOLvsZaRHOVsnZLZ4ZW8hsHfc7dMkvgvefCOIF9bLWf2AePYwbkZN6QRUKKH+ Kxfk0Vj8KySE/DTBPfNMRg304t7XI4WxnLezOKigAt5dO/2BqT1oC5gGd/UF2XV8j0co ukL3UE3r1OKtz/YgXMvE582lYJN1p0q25R8n/jBXKH8gizhhvbThogLsWiHC27ZdTb2C /nXxXPYIHP5TmKxEqtEAXH6+VMz89zZyWXzkcGNzKZWFWGD9fA72V9Yt9HbSmNAtpr+0 dPZw== X-Gm-Message-State: AD7BkJIQie1y6NrYHLZu5xc/qFom0qezSjaUXJ6XFps3x322/Lw4yrBGGR1CAn06nHWDgzThL788n2lKBWBuOQ== MIME-Version: 1.0 X-Received: by 10.194.134.227 with SMTP id pn3mr27162472wjb.129.1460397707730; Mon, 11 Apr 2016 11:01:47 -0700 (PDT) Sender: jim.harris@gmail.com Received: by 10.194.116.232 with HTTP; Mon, 11 Apr 2016 11:01:47 -0700 (PDT) In-Reply-To: References: Date: Mon, 11 Apr 2016 11:01:47 -0700 X-Google-Sender-Auth: Mi94cQLAt8MJ0VGYsLw07wGYc6w Message-ID: Subject: Re: NVMe over fabrics support in FreeBSD From: Jim Harris To: Meny Yossefi Cc: "info@freebsdfoundation.org" , "freebsd-drivers@freebsd.org" , "hselasky@freebsd.org" , Oded Shanoon , Hans Petter Selasky , Oren Duer , Max Gurtovoy , "trasz@FreeBSD.org" , Warner Losh X-Mailman-Approved-At: Mon, 11 Apr 2016 18:52:00 +0000 Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.21 X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Apr 2016 18:01:49 -0000 On Mon, Apr 11, 2016 at 7:24 AM, Meny Yossefi 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. Best regards, -Jim > > Best regards, > > Meny Yossefi | SW Manager | FreeBSD Team > Mellanox Technologies Ltd > Work: +972-74-7129121, Cell: +972-52-8379557 > > _______________________________________________ > freebsd-drivers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-drivers > To unsubscribe, send any mail to "freebsd-drivers-unsubscribe@freebsd.org" >