From patchwork Mon Mar 9 12:12:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?J=C3=BAlius_Milan?= X-Patchwork-Id: 66413 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 790BEA052E; Mon, 9 Mar 2020 11:13:03 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 0AB9D1C02A; Mon, 9 Mar 2020 11:13:03 +0100 (CET) Received: from mail-wr1-f68.google.com (mail-wr1-f68.google.com [209.85.221.68]) by dpdk.org (Postfix) with ESMTP id AC24A1C01F for ; Mon, 9 Mar 2020 11:13:01 +0100 (CET) Received: by mail-wr1-f68.google.com with SMTP id n15so10231951wrw.13 for ; Mon, 09 Mar 2020 03:13:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:subject:message-id:mime-version:content-disposition :content-transfer-encoding:user-agent; bh=n4h/yvyI0UaXf8g/Y2CcxGfbS+FCi6WqO3fy+0pecuQ=; b=nzakGJyPLKbeVUPyO5fYvRanBtlnvGXUlxu2kaOmUuiL0HTRc0cESgvOyLy1dUzLZ8 d9jGqyj0H1b4/oIGvBPU9NUkPhuYdw8aQL5wgCQB/JUZkzSObxiTTAG8jdN+bX5g9vE7 Iyme3vPWZjoJk0dd8v1dku7U7URLJBqX76DDIxD4Io3oNkCK0nNxMhRkPc40Z3oBHqtN QzSbhFnLUKm40tRZ8wWtI9BlfsP0DVrFGkAC82MDwn1fr1gqFLw4qeiIOVYpN+YIG45J Cs8TqkYbcgDunoTgPOjrITEjsF+ytYyQJF1IuKoMMOn4Ks+Y5tOurDBsGyFU79t5Nwft jI3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-disposition:content-transfer-encoding:user-agent; bh=n4h/yvyI0UaXf8g/Y2CcxGfbS+FCi6WqO3fy+0pecuQ=; b=jv6t2nokjjSDCvp6ASrc5Co2exBJ9U+YVaXYoW1XzyHxD2VttFcy0cLS6yEZNaFa4L +sYzqCrtobJ7USmYbohWHUxNNzj5PL+M5hZciQjXD36MTQL3rtL326N1CqvUk2bR7Cuo Eq6tY2FfcOq1+pJIUtKItW1okvTdLQsHvSVqGeyXHxulnj0zFp2DKpNH5RmgLouMvXGi sfXnoh9VBlmHHw4t3n5ITqc9JGPAieNqcM2hMOo8FHGZEFolprsWHEjunOcxtrEDiYdF t+73q6qHuDy4wsX7qLiXf50O74M7EBfser0KZmo7dggXKq32bTevdg4Tp74I+Nl1SyoC Kqfg== X-Gm-Message-State: ANhLgQ29gqjitBj8zz7uz6K3+X0oCjIDizHjn6VPV4peHnEfkP+5w0jd Htscn5zep98JJ61IyithbJ4= X-Google-Smtp-Source: ADFU+vsBgwxfcsc5VWWftTLnX4VFpjbJmQWTru98WlAGjaZZCyALlk5oSTNXJ+EhcT0MlIIyxBB4ug== X-Received: by 2002:a5d:518b:: with SMTP id k11mr20912847wrv.114.1583748781387; Mon, 09 Mar 2020 03:13:01 -0700 (PDT) Received: from vbox (81.89.53.154.host.vnet.sk. [81.89.53.154]) by smtp.gmail.com with ESMTPSA id s14sm48867414wrv.44.2020.03.09.03.13.00 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 09 Mar 2020 03:13:00 -0700 (PDT) Date: Mon, 9 Mar 2020 13:12:59 +0100 From: =?iso-8859-1?q?J=FAlius?= Milan To: ferruh.yigit@intel.com, dev@dpdk.org, jgrajcia@cisco.com Message-ID: <20200309121259.GA29453@vbox> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Subject: [dpdk-dev] [PATCH] doc: document memif loopback feature X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Shows the example of how to connect 2 memif ports into loopback and test the communication. Signed-off-by: Július Milan --- doc/guides/nics/memif.rst | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/doc/guides/nics/memif.rst b/doc/guides/nics/memif.rst index 4d7f0086a..08a9fda86 100644 --- a/doc/guides/nics/memif.rst +++ b/doc/guides/nics/memif.rst @@ -272,3 +272,21 @@ Send ping from VPP:: 64 bytes from 192.168.1.2: icmp_seq=3 ttl=254 time=23.3927 ms 64 bytes from 192.168.1.2: icmp_seq=4 ttl=254 time=24.2975 ms 64 bytes from 192.168.1.2: icmp_seq=5 ttl=254 time=17.7049 ms + +Example: testpmd memif loopback +------------------------------- +In this example we will create 2 memif ports connected into loopback. +The situation is analogous to cross connecting 2 ports of the NIC by cable. + +To set the loopback, just use the same socket and id with different roles:: + + #./testpmd --vdev=net_memif0,role=master,id=0 --vdev=net_memif1,role=slave,id=0 -- -i + +Then start the communication:: + + testpmd> start tx_first + +Finally we can check port stats to see the traffic:: + + testpmd> show port stats all + testpmd> show port stats all