From patchwork Wed Jun 19 18:57:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Hemminger X-Patchwork-Id: 55094 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 2A8E91D144; Wed, 19 Jun 2019 20:58:17 +0200 (CEST) Received: from mail-pl1-f193.google.com (mail-pl1-f193.google.com [209.85.214.193]) by dpdk.org (Postfix) with ESMTP id 991D01D0FE for ; Wed, 19 Jun 2019 20:58:04 +0200 (CEST) Received: by mail-pl1-f193.google.com with SMTP id i2so203908plt.1 for ; Wed, 19 Jun 2019 11:58:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=izo55QUJe9iBPGBP8dhjRckymadapEsbrUhHMdFoGuU=; b=hUawFW4MOG0NJIjMnF5/FbdaxzzkT9OYkziu//kiHUVDeCkbJpPCihgm6qyf9HlP4y Jf/SK65C/l1TAVasZyTFy7HCyiAHVXx2U2RqtXvSqxBxdUW0S15+LvyfaBLkNpLt0WdH Fe2+8tsJIDFq4bVBwGm/gtel8KFtwYa5cjDBEKxz0bYneyog1Lk6M68Nm6gg4VgpWDeB VLeNug7mYQUsR/leX+L9Z/1xWpDsvd1TMHpoTDGmv2Wu30zDgx4uAdFUmmpM+1sJAVi8 qAKfGREMcxXSVGXmhVogPBh1tuqAOzmcKBp+tiXxbv55xICt5gbYVwlJZ2nSXYzdV2/5 CdvA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=izo55QUJe9iBPGBP8dhjRckymadapEsbrUhHMdFoGuU=; b=NHG3h8/y9XaeXmZLoJiYN4bZbX1rb1ViJMxmUTSY7iCyNPp5S/BZJ5HZCF80VWzI9i GLiQzSb0+CyIZxf18hHtaHxqXscCnpamCmefc+Fk0JinzQ3VrfHU9SYLg2Cr3r3OHtmL nqs9nyETEwHfYVOh6Cn5K45GY1a/yiB3up9gyI/4J8/AD98trmug9Obu4gewgD/+4NtY hjnwBHaoJPXEYnF8CAi6wj0ZGNmZpx41MUJqFPVgueDC7zN4IYFb4mPS8ieqrurLPSri zfKalCs9zEu3eGCZAWMPxD15BvnAOVTdIgrfU0wnn2287ozBunHeeMIhpEmkBZhTq5e/ RvIA== X-Gm-Message-State: APjAAAVPGlDPfs9w50kdnI96cWOqdJzORI2lGMsd0x1MZDYOUABT5x3g 51bJ1yR9A461RrfKsWfXKckK878lFuM= X-Google-Smtp-Source: APXvYqzJHmK32avgrtGUT3PomA1HEqFaojN7tVvpcArOCxMXLEOByIPAlLUTeH+72j5O1/QlsU4PfA== X-Received: by 2002:a17:902:6947:: with SMTP id k7mr47118666plt.253.1560970683395; Wed, 19 Jun 2019 11:58:03 -0700 (PDT) Received: from hermes.lan (204-195-22-127.wavecable.com. [204.195.22.127]) by smtp.gmail.com with ESMTPSA id b8sm24774858pff.20.2019.06.19.11.58.01 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 19 Jun 2019 11:58:02 -0700 (PDT) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger , Stephen Hemminger Date: Wed, 19 Jun 2019 11:57:45 -0700 Message-Id: <20190619185746.26866-8-stephen@networkplumber.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190619185746.26866-1-stephen@networkplumber.org> References: <20190610175155.21374-1-stephen@networkplumber.org> <20190619185746.26866-1-stephen@networkplumber.org> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v3 7/8] doc: update KNI documentation 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" From: Stephen Hemminger Make the KNI documentation reflect modern kernel networking. Ifconfig has been superseded by iproute2 for 15 years. Iproute2 is well maintained, supports current feature set. Ethtool is no longer supported by KNI. Tshark is a better replacement for tcpdump. Signed-off-by: Stephen Hemminger --- .../sample_app_ug/kernel_nic_interface.rst | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/doc/guides/sample_app_ug/kernel_nic_interface.rst b/doc/guides/sample_app_ug/kernel_nic_interface.rst index a7e549d5213a..422bd8c98465 100644 --- a/doc/guides/sample_app_ug/kernel_nic_interface.rst +++ b/doc/guides/sample_app_ug/kernel_nic_interface.rst @@ -21,14 +21,14 @@ The FIFO queues contain pointers to data packets in the DPDK. This: * Provides a faster mechanism to interface with the kernel net stack and eliminates system calls -* Facilitates the DPDK using standard Linux* userspace net tools (tcpdump, ftp, and so on) +* Facilitates the DPDK using standard Linux* userspace net tools (tshark, rsync, and so on) * Eliminate the copy_to_user and copy_from_user operations on packets. The Kernel NIC Interface sample application is a simple example that demonstrates the use of the DPDK to create a path for packets to go through the Linux* kernel. This is done by creating one or more kernel net devices for each of the DPDK ports. -The application allows the use of standard Linux tools (ethtool, ifconfig, tcpdump) with the DPDK ports and +The application allows the use of standard Linux tools (iproute, tshark) with the DPDK ports and also the exchange of packets between the DPDK application and the Linux* kernel. The Kernel NIC Interface sample application requires that the @@ -220,13 +220,13 @@ Enable KNI interface and assign an IP address: .. code-block:: console - # ifconfig vEth0_0 192.168.0.1 + # ip addr add dev vEth0_0 192.168.0.1 Show KNI interface configuration and statistics: .. code-block:: console - # ifconfig vEth0_0 + # ip -s -d addr show vEth0_0 The user can also check and reset the packet statistics inside the ``kni`` application by sending the app the USR1 and USR2 signals: @@ -234,16 +234,16 @@ application by sending the app the USR1 and USR2 signals: .. code-block:: console # Print statistics - # kill -SIGUSR1 `pidof kni` + # pkill -USR1 kni # Zero statistics - # kill -SIGUSR2 `pidof kni` + # pkill -USR2 kni Dump network traffic: .. code-block:: console - # tcpdump -i vEth0_0 + # tshark -n -i vEth0_0 The normal Linux commands can also be used to change the MAC address and MTU size used by the physical NIC which corresponds to the KNI interface. @@ -254,13 +254,13 @@ Change the MAC address: .. code-block:: console - # ifconfig vEth0_0 hw ether 0C:01:02:03:04:08 + # ip link set dev vEth0_0 lladdr 0C:01:02:03:04:08 Change the MTU size: .. code-block:: console - # ifconfig vEth0_0 mtu 1450 + # ip link set dev vEth0_0 mtu 1450 When the ``kni`` application is closed, all the KNI interfaces are deleted from the Linux kernel.