From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f47.google.com (mail-it0-f47.google.com [209.85.214.47]) by dpdk.org (Postfix) with ESMTP id BCBA89B51 for ; Tue, 1 Aug 2017 03:10:19 +0200 (CEST) Received: by mail-it0-f47.google.com with SMTP id 77so456955itj.1 for ; Mon, 31 Jul 2017 18:10:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yale.edu; s=googleprd; h=mime-version:from:date:message-id:subject:to; bh=krgO1Bvm59PBQ7kE6Ctffu4PXrtdUdmo71aAEeiFJ54=; b=uzNAZwjpKtraXND/C6F+PoH6LnO9wASVPyurZ71oTQTNtwXPPnLxj2rYYTqYaUozS/ NKrFdLGL/rmkPcOKaT/505kgCkU4n7mFaZYa0AgJ1lPSyq7lNkyO013vJ1/CxwZxtRLS bHRaMfMhyehnyFeYvq3Z5AlIgpwFeQZe51esA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=krgO1Bvm59PBQ7kE6Ctffu4PXrtdUdmo71aAEeiFJ54=; b=ZZ3MxYqDXhyRuk4XHyFQtrehHy6sVA+7Z96HWN3oSrepTkXh2LuulXG+Cw12Sq8oL/ nz4k2FXSvnah5E1n3Ao0x/G8JfUUT9TzSjCrwx/aCEZf9UuejTcfg/IiK6/s33sj7OUc piuil3MSw5/tqja0Mh+4+MnPO86Z0WtW0enty0Y6L+WKIKU9iiDI0yc6M4AzHRZozOAD bq/X4/ftPU8048LVR8X5JtA76ixKP6mQMqQN5IsJHuLPYfafPEkJ8wYE1A0SXEcNzavm gukLfS1Gw0yVHVweqJUu1rYIG8XtIim3j8L3N68BZpuCG/1wmJVp7+7t0gc0xyWmgY4G P3Rw== X-Gm-Message-State: AIVw112Dx5XuaL+b7A7f3+KXhkyrIEg39KBNsE1ZBbrvX64AgfWFjU3n Gz/s233eNmeo2XPnlWVpRg2gMjcADS6OznM= X-Received: by 10.36.10.83 with SMTP id 80mr106240itw.128.1501549818681; Mon, 31 Jul 2017 18:10:18 -0700 (PDT) MIME-Version: 1.0 Received: by 10.36.220.71 with HTTP; Mon, 31 Jul 2017 18:10:18 -0700 (PDT) From: Yuliang Li Date: Mon, 31 Jul 2017 18:10:18 -0700 Message-ID: To: users@dpdk.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] KNI tcp segmentation offloading X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Aug 2017 01:10:20 -0000 Hi, I am using KNI, and I hope the TCP can use segmentation offloading. However, when I use "ethtool -k vEth0" (the KNI virtual interface), it shows: tcp-segmentation-offload: off tx-tcp-segmentation: off [fixed] tx-tcp-ecn-segmentation: off [fixed] tx-tcp6-segmentation: off [fixed] and "sudo ethtool -K vEth0 tso on" gives me: Cannot change tcp-segmentation-offload Could not change any device features Is there a way to enable TCP segmentation offloading with KNI? Thanks, -- Yuliang Li PhD student Department of Computer Science Yale University