From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f44.google.com (mail-it0-f44.google.com [209.85.214.44]) by dpdk.org (Postfix) with ESMTP id A586029CF for ; Tue, 30 Aug 2016 03:55:35 +0200 (CEST) Received: by mail-it0-f44.google.com with SMTP id x131so138272286ite.0 for ; Mon, 29 Aug 2016 18:55:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=3NVD1aIYj+zez/4vRJIfLQC+iZscWKYstdvIKzIOd/c=; b=adQY3r2QCDFPY+KHtncu9Sow6xozGixNO+qtWx7AdVgifUNVDqIk7tRmyu499qyiRH J5lkj54HsTFT/NbbfRpskCD77a4SZjdULU3qsy9T032Kp8Wj4pJM0IBVl0gTxnxnFyLR 55AOyOOidXCjSyIX1aa8u1yMeJ41lQd3rSpUM2sCWcgHsIoIw9e9kemJDjfjAlOOzooS w7NX7BT/hwqYfaJ0a87dvRZr2SZSh8sDskG+2lLomZWwff124AdSG/bwfmOaI/rSCu5X Z30UTbtXhx4U+1wiZpqHvJ75uOxH7nJab0L7YqBLpbrbSp1lkhfnbhVOhq+j1i9xbqKh SwnQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=3NVD1aIYj+zez/4vRJIfLQC+iZscWKYstdvIKzIOd/c=; b=fqnfT7mHwdTvVMlSaeEJSnJIjTKY39kPHpRZ71Y8msyTst/ohIZ4MmQLOv+rbvzXRo gPE7zqhGYvhQDlhgQM3zVwFiFV1z2mudgX4Ap8QtGDocdFZl288Bihw0UaiZq3iwWP1W A3E7v2EkmqpCYbw3k1KzVbK/c5gHtCKEvUESuVuv8WWsIfG3rPQ64/qKUgBI75OJ+OGA F0vdy2t5gV1l/QBEz2JYWKGQ2EyIJCeAUqFldf0SRbXEzjurts8xss/6aQiLcP1bKec4 Ql68kW+XQy+ilUfBlhK/Uinysj6W7oDyc3FcqHINMI282v5GjSlDOsTAaZYxrF+A+IUx eXrA== X-Gm-Message-State: AE9vXwPyJzlWFxePNu5rFEUW8orDZva0shn8ibMyJ0uYhkN/SH7pJZiduUcqsmw+3Djdp9DWkRN6+3zdZq8idA== X-Received: by 10.36.80.138 with SMTP id m132mr21562755itb.32.1472522135052; Mon, 29 Aug 2016 18:55:35 -0700 (PDT) MIME-Version: 1.0 Received: by 10.36.239.197 with HTTP; Mon, 29 Aug 2016 18:55:33 -0700 (PDT) In-Reply-To: References: From: Victor Detoni Date: Mon, 29 Aug 2016 22:55:33 -0300 Message-ID: To: Stephen Hemminger Cc: users@dpdk.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: Re: [dpdk-users] Set mtu value X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Aug 2016 01:55:35 -0000 Even using `ifconfig eth0 mtu 1000` it doesn't work. My dpdk api shows 1500 mtu value. And when I try to use l3fwd api and settings --enable-jumbo --max-pkt-len 9000 for example, it doesn't work. it appears: Cause rte_eth_tx_queue_setup: err-22, port=0 Any tips? I'm using Ubuntu 16.04 and VMXNET3. thanks On Mon, Aug 22, 2016 at 10:12 AM, Victor Detoni wrote: > Stephen, thank you for your answer. > > When you say "stop the device, configure new settings, and start", you > mean use these functions rte_eth_dev_stop and rte_eth_dev_start? > > On Mon, Aug 22, 2016 at 2:27 AM, Stephen Hemminger < > stephen@networkplumber.org> wrote: > >> only some device drivers support changing MTU via the change API. >> For the rest the application has to stop the device, configure new >> settings, and start. >> > >