From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-x431.google.com (mail-pf1-x431.google.com [IPv6:2607:f8b0:4864:20::431]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 366013CB37 for ; Tue, 27 Jun 2023 18:49:35 -0400 (EDT) Received: by mail-pf1-x431.google.com with SMTP id d2e1a72fcca58-666e6541c98so4988213b3a.2 for ; Tue, 27 Jun 2023 15:49:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20221208.gappssmtp.com; s=20221208; t=1687906174; x=1690498174; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=txroIoCJoQGZK9EMfTYT/FKNmH/RRQ18NER9DK2j24o=; b=AByW+PcVmry0oyCUHLgZin3eccCuLNSB74iRZCGpZXmGlHrGwnjIRSkACMUHFkgnp6 hHmOwpJPVG8zh/+Wt7NyRkWvhPmE5LPAhCGJuDxof9Xlz3LfvJnhrTXODlBmbAN0hq+m 8q2ohJ5UzBf+/eUIFvu2f/++hOba22YO10FOWOqKbfJejlMTB49SEI3+C8joCyah1D5H XBkCbVk8qPWnK+i7is6LeV77r3QeIiFRpcusUVMIlmNyJFxadp/2312WCKuDa+rP+o+/ AavpA+zYN2qL8ya6S0aGfOUw5bM1dt6LUGwb5cwhULFf057z+31oRUqVKkjuB5t0Xnlz vIqw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687906174; x=1690498174; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=txroIoCJoQGZK9EMfTYT/FKNmH/RRQ18NER9DK2j24o=; b=UbyZHf+wGaMp5AhVq8Bxmlkuy8HXsAFVL8RDJRA/OL3BGWICwzZq8zva822inbns4X kya9IeEjVBqrczszfzVavx+ZadetnvMMIWVF1uGHOiTmonotZsmY2sUmYhktTMO9dBk1 59v/U4xpB6nKxtEIaalslBnGgRgfVltHFe8CHkHb85+yt/+DisIGREGByMMULgKiw8Mr C7wvCsKgMrekCIBxtcKcJQcuXk8kUK0ly3yDPrlUwNfQPx+qzIK13yyoz0cZDEhMpGV9 gy2mAVuPIFqkrKo9Ag6I5WQqIIyBxXkk6Q3HwuMM4rhZ6B2tmh8h3ZL4iRpf0Q4LYR89 LVHw== X-Gm-Message-State: AC+VfDzhElasXDFuwVBtoY5hTJIjqtqHbaNemOXRWu+y5CeinHPjvuI0 HOf9ls6AaB3AVZIAookCEbWEXyC1CclSe5fh4lTMfg== X-Google-Smtp-Source: ACHHUZ5PW+Tib6d8XJAcGgQfykNankiXDiaKW3DCVXWRkkZNSfw5t73EfN/ZA7RmggaFGEXGDUD/eA== X-Received: by 2002:a05:6a00:17a9:b0:67f:1d30:9e51 with SMTP id s41-20020a056a0017a900b0067f1d309e51mr2614415pfg.33.1687906174118; Tue, 27 Jun 2023 15:49:34 -0700 (PDT) Received: from hermes.local (204-195-120-218.wavecable.com. [204.195.120.218]) by smtp.gmail.com with ESMTPSA id p15-20020a63e64f000000b0051b0e564963sm6353549pgj.49.2023.06.27.15.49.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Jun 2023 15:49:33 -0700 (PDT) Date: Tue, 27 Jun 2023 15:49:31 -0700 From: Stephen Hemminger To: David Lang Cc: "David P. Reed" , cake@lists.bufferbloat.net, bloat@lists.bufferbloat.net Message-ID: <20230627154931.71aff7ca@hermes.local> In-Reply-To: <4np8q9q1-on99-rn94-5s1p-55643oo11037@ynat.uz> References: <1687837319.447910185@mobile.rackspace.com> <4np8q9q1-on99-rn94-5s1p-55643oo11037@ynat.uz> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [Cake] [Bloat] Two questions re high speed congestion management anddatagram protocols X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Jun 2023 22:49:35 -0000 On Tue, 27 Jun 2023 12:47:01 -0700 (PDT) David Lang wrote: > On Mon, 26 Jun 2023, David P. Reed via Bloat wrote: > > > Sorry for top posting, but ... Bigger question: > > Why would DCCP be deprecated by Linux kernel? > > Who makes that decision? Who argues against it? > > Linus or the networking maintaners make the decision. > > Usually things get pulled from the kernel because there are updates that need to > be made to the code (to match changes elsewhere in the kernel or because of > security issues) and there isn't a maintainer who works on the code in a > resonable time. This means that the maintainers for the general code area (in > this case networking maintainers) will need to do extra work in an area they > aren't that interested in (and, especially in the case of hardware, may not have > the ability to test). They do some of it, especially if it's commonly used, but > eventually either another maintainer steps up, or it goes away > > David Lang See https://patchwork.kernel.org/project/netdevbpf/patch/20230614194705.90673-3-kuniyu@amazon.com/