From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by aws-us-west-2-korg-lkml-1.web.codeaurora.org (Postfix) with ESMTP id 50A0AC5CFC0 for ; Fri, 15 Jun 2018 00:09:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1301F208B5 for ; Fri, 15 Jun 2018 00:09:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1301F208B5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=davemloft.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965251AbeFOAJU (ORCPT ); Thu, 14 Jun 2018 20:09:20 -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.