From owner-freebsd-net@FreeBSD.ORG Tue Jan 22 18:23:48 2013 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 51B103B2; Tue, 22 Jan 2013 18:23:48 +0000 (UTC) (envelope-from jfvogel@gmail.com) Received: from mail-vc0-f172.google.com (mail-vc0-f172.google.com [209.85.220.172]) by mx1.freebsd.org (Postfix) with ESMTP id C96A1B07; Tue, 22 Jan 2013 18:23:47 +0000 (UTC) Received: by mail-vc0-f172.google.com with SMTP id l6so5793051vcl.17 for ; Tue, 22 Jan 2013 10:23:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:cc:content-type; bh=gENbzfDuBMio3O/WLAHMhcg4Lh2hykhU0tf6W8KHl6Q=; b=r8bYrBnQ8LyTdE/6I0+7nrbji5hc4RN+jAWjum9qrl54sqmRr6BeiM58fZgPkY6bKM v0ZXtKaxhx5LZWpHlb+0CjjkCoPjVrbKRlxB236fb2Kjb34BVpdV31RSpgj/A+bB5/dm Q0xkBvkQMPvhg7ysH1F4aV5YP7k/GWEFuAY5v8xGG9qDxdCPxMSOGWSVniS/WqPE/Rs5 e/rNZ7VQxGbe69J/1cwQHmCk0Spbrmsp3RSmGx9FURCInc+/y99xy/zBPRkyLMeNK5+P j89eFEXlM7gYgoAyPXg06cB6qh/5BN6ohhhkmGUWq7gKqp63XhJ9jkQn9et1GH8Ze1hL 3L5A== MIME-Version: 1.0 X-Received: by 10.220.219.204 with SMTP id hv12mr24158536vcb.71.1358879020979; Tue, 22 Jan 2013 10:23:40 -0800 (PST) Received: by 10.220.25.13 with HTTP; Tue, 22 Jan 2013 10:23:40 -0800 (PST) In-Reply-To: <50FEC109.5080601@freebsd.org> References: <50FEBF0C.6050307@freebsd.org> <50FEC109.5080601@freebsd.org> Date: Tue, 22 Jan 2013 10:23:40 -0800 Message-ID: Subject: Re: Data Center Bridging? From: Jack Vogel To: Julian Elischer Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: "freebsd-net@freebsd.org" , "Eggert, Lars" , "Vogel, Jack" X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Jan 2013 18:23:48 -0000 On Tue, Jan 22, 2013 at 8:40 AM, Julian Elischer wrote: > On 1/22/13 9:32 AM, Julian Elischer wrote: > >> On 1/22/13 8:43 AM, Eggert, Lars wrote: >> >>> Hi, >>> >>> on Linux, various NICs (e.g., ixgbe) support Data Center Bridging. Is >>> this also available under FreeBSD? Do *any* NICs support DCB under FreeBSD? >>> >>> Thanks, >>> Lars >>> ______________________________**_________________ >>> freebsd-net@freebsd.org mailing list >>> http://lists.freebsd.org/**mailman/listinfo/freebsd-net >>> To unsubscribe, send any mail to "freebsd-net-unsubscribe@**freebsd.org >>> " >>> >>> that really depends on what you want to do >> given a freebsd command line and a kernel with the right options I could >> probably bridge two networks in about 15 minutes. >> (I have done it in the past). >> if DCB is a specific protocol then we may need to do some work to support >> it. as I've not heard of it. >> > > google to the answer. > I have not seen any support for that. > I would check with the driver writers from intel and/or broadcom etc. > (they should be here somewhere). > Jack? > > I have never implemented this in the FreeBSD drivers primarily because the motivation for it say, in Linux, was to handle multiple traffic classes, for instance FCOE or iSCSI, but FreeBSD has not had these features to implement this for. Give me a reason to do it, and I can see about adding it :) Jack