From owner-svn-src-head@FreeBSD.ORG Tue Jan 13 11:49:02 2015 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id B5D56D6E; Tue, 13 Jan 2015 11:49:02 +0000 (UTC) Received: from mail-ob0-x22c.google.com (mail-ob0-x22c.google.com [IPv6:2607:f8b0:4003:c01::22c]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 75B7E114; Tue, 13 Jan 2015 11:49:02 +0000 (UTC) Received: by mail-ob0-f172.google.com with SMTP id va8so2063751obc.3; Tue, 13 Jan 2015 03:49:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=4G8F9gV23jhZPKTbUiDRWSWN2uolgaIrzyGq65r4twI=; b=vPLG7iO8NAI8IHO/nKwX7oJBhPX9JstEJD0+uR1R683SJZ+On0N65EiA9p3OiYKgop 5/Aseb/drHZQgZFnaCA4V18LrigebsUde1BqurpwPnpWGOy12qnCcmoc474hj9RupT4T DGURnT3gD+QwQrNbKArKXnVjMrCuHXnyBPG7aRdMilZW4YZizOgCimYhLXUYMM0tYuB1 jPfb+NtL7uI93WS4y1RC4YLEG/WppTgEM7fj0JwOvmahZ9NtX3GuIL46kHfY8s5OsBZC cjj48KuJu8SXZ8SzyThgE8aQvvstiKSe47Y6XHmyemgx5MfkxsQKaJC71N7+Hc4jFb/+ JNbA== MIME-Version: 1.0 X-Received: by 10.202.231.209 with SMTP id e200mr19450466oih.63.1421149741842; Tue, 13 Jan 2015 03:49:01 -0800 (PST) Received: by 10.182.156.71 with HTTP; Tue, 13 Jan 2015 03:49:01 -0800 (PST) In-Reply-To: <54B3F10F.70506@FreeBSD.org> References: <201501120833.t0C8X53s071470@svn.freebsd.org> <54B3F10F.70506@FreeBSD.org> Date: Tue, 13 Jan 2015 20:49:01 +0900 Message-ID: Subject: Re: svn commit: r277054 - in head: share/man/man4 sys/modules/cc sys/modules/cc/cc_dctcp sys/netinet sys/netinet/cc From: Midori Kato To: Pedro Giffuni Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 Cc: svn-src-head@freebsd.org, Lars Eggert , Hiren Panchasara X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 Jan 2015 11:49:02 -0000 Hi Pedro, Thank you for your mention about the patent problem. Thanks to Hiren and Lars support, we have already discuss patent with microsoft people. But I am not sure that we must care about Linux because we worked on our implementation without linux. Let's wait and see if redhat people say about it. Again, thank you for your interest to dctcp implementation :) Regards, -- Midori 2015-01-13 1:06 GMT+09:00 Pedro Giffuni : > > On 12/01/2015 03:33 a.m., Hiren Panchasara wrote: > >> Author: hiren >> Date: Mon Jan 12 08:33:04 2015 >> New Revision: 277054 >> URL: https://svnweb.freebsd.org/changeset/base/277054 >> >> Log: >> DCTCP (Data Center TCP) implementation. >> DCTCP congestion control algorithm aims to maximise throughput and >> minimise >> latency in data center networks by utilising the proportion of Explicit >> Congestion Notification (ECN) marked packets received from capable >> hardware as a >> congestion signal. >> Highlights: >> Implemented as a mod_cc(4) module. >> ECN (Explicit congestion notification) processing is done differently >> from >> RFC3168. >> Takes one-sided DCTCP into consideration where only one of the sides >> is using >> DCTCP and other is using standard ECN. >> IETF draft: http://tools.ietf.org/html/draft-bensley-tcpm-dctcp-00 >> Thesis report by Midori Kato: https://eggert.org/students/ >> kato-thesis.pdf >> Submitted by: Midori Kato and >> Lars Eggert >> with help and modifications from >> hiren >> Differential Revision: https://reviews.freebsd.org/D604 >> Reviewed by: gnn >> > > Missing > > RelNotes= yes > > Huge thank you! > > FWIW, I thought the linux guys wouldn't take it over some GPL vs patent > issue but apparently redhat pushed some muscle and just did it: > > http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id= > e3118e8359bb7c59555aca60c725106e6d78c5ce > > Not that I care much what they do ;). > > Pedro. > >