Received: by 2002:ac0:a5b6:0:0:0:0:0 with SMTP id m51-v6csp146614imm; Thu, 14 Jun 2018 17:10:06 -0700 (PDT) X-Google-Smtp-Source: ADUXVKLfa0xULkNhtQPWQueXJsLp8snsKRldwkOGHI3iMr/ZmflaUkBhOuPkIAN7GuxNQ/ZhsuPE X-Received: by 2002:a63:83c3:: with SMTP id h186-v6mr4015222pge.298.1529021406281; Thu, 14 Jun 2018 17:10:06 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1529021406; cv=none; d=google.com; s=arc-20160816; b=B0lw7iRjqtqoWhtzcWfdPXAiJ1F2cxCbcotIDZAvstDEhVjfsinZZ9J7/zcA/uUSa5 3GmgGHT9N73VAFEbYrilhLXeT8L6Ht/Hsw73fncHJtkaY9w7j7cjaYQRUsoZRzqTzbuv 2HCiGJYF8JBFypZ1FmJ46WTZrhpsepmwDxyQ7ji8KTv8lfI8AIr+BF+uJdnD210A6MrX sOmY1N/UpD1fTRSc2s0doBf1oVAHqjkc6R4BfPEclc/jdCU3AXW0pa01bj41tV/kovlZ SEBTsNW8zF2e7uBqwtyvJD1j3KW7GSBRN2vT7mQ1uEx2tcysMo3vDJLXdAZUZQC4GPo5 keRg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:from:subject:cc:to:message-id:date :arc-authentication-results; bh=5GW3buHHSrxK0wH6fbTviEnB5vyJB87Ejv12eGonC6s=; b=jCj7CD3Z9bE4OEgXfcb+hoCd070sWxRPwM3CcJJMHG3/zh0Z3/NKUKHopj7Pp3oPkm Cnfu0F+J9rviHkcVBKI+t6ABNu/Y/elNHvzVZ8sorblVZZfVllEpU9UBcTCPR76QCeUg 58WCbl/t2TZcxZgWzq4IIvOKz5LDzOkxn71eIwB293EIFM5OJYgUHL9G75UT0IFVM+aa 1nDOof462W4AoaSIdhy5iVxb8EWYkX+YtAm2HJT/AGO5Omh8EAafnqRuzev+O6rdLmhV uR4ahMyK+WrLtWGBMIBg/VQWtNGHTCFLZfp1EcqF4AvQ5UewP224DZEPafi1/9w2iKhA BPbg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id v12-v6si5279568pgs.538.2018.06.14.17.09.51; Thu, 14 Jun 2018 17:10:06 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965242AbeFOAJT (ORCPT + 99 others); Thu, 14 Jun 2018 20:09:19 -0400 Received: from shards.monkeyblade.net ([184.105.139.130]:51076 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965109AbeFOAJS (ORCPT ); Thu, 14 Jun 2018 20:09:18 -0400 Received: from localhost (74-93-104-98-Washington.hfc.comcastbusiness.net [74.93.104.98]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 0D7A4141102E1; Thu, 14 Jun 2018 17:09:18 -0700 (PDT) Date: Thu, 14 Jun 2018 17:09:17 -0700 (PDT) Message-Id: <20180614.170917.1206663847215606546.davem@davemloft.net> To: laoar.shao@gmail.com Cc: edumazet@google.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next] tcp: add SNMP counter for zero-window drops From: David Miller In-Reply-To: <1528889908-15980-1-git-send-email-laoar.shao@gmail.com> References: <1528889908-15980-1-git-send-email-laoar.shao@gmail.com> X-Mailer: Mew version 6.7 on Emacs 25.3 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Thu, 14 Jun 2018 17:09:18 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yafang Shao Date: Wed, 13 Jun 2018 07:38:28 -0400 > It will be helpful if we could display the drops due to zero window or no > enough window space. > So a new SNMP MIB entry is added to track this behavior. > This entry is named LINUX_MIB_TCPZEROWINDOWDROP and published in > /proc/net/netstat in TcpExt line as TCPZeroWindowDrop. > > Signed-off-by: Yafang Shao net-next is closed, please resubmit this when net-next opens back up. Thank you.