From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932239AbcFJTmt (ORCPT ); Fri, 10 Jun 2016 15:42:49 -0400 Received: from p3plsmtps2ded02.prod.phx3.secureserver.net ([208.109.80.59]:60917 "EHLO p3plsmtps2ded02.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751632AbcFJTmr (ORCPT ); Fri, 10 Jun 2016 15:42:47 -0400 x-originating-ip: 72.167.245.219 From: Haiyang Zhang To: davem@davemloft.net, netdev@vger.kernel.org Cc: haiyangz@microsoft.com, kys@microsoft.com, olaf@aepfle.de, vkuznets@redhat.com, linux-kernel@vger.kernel.org, driverdev-devel@linuxdriverproject.org Subject: [PATCH net-next,v2] tools: hv: Add a script to help bonding synthetic and VF NICs Date: Fri, 10 Jun 2016 14:23:12 -0700 Message-Id: <1465593792-31672-1-git-send-email-haiyangz@microsoft.com> X-Mailer: git-send-email 1.7.4.1 X-CMAE-Envelope: MS4wfC2cLpET7hRp4+Md0Hs6Q/M1ClM1ZzTKKhmVgkBks2P0Sil+aCN25OVieM4nrenljuFerEpnmBk6iRPAa3mmFuY7cola1xh1dcRl87iwtSIOB7gqaxFj XNF6V8qk34zECBJSfi6EwCcC5NsVSoDZ09sBl1C+T+SlHg8gdXAUQyBz+rq+oItoj60Ol9cVTx7LMKYiyVKnKcsOAY5MbtDRGgiRGM661zsLoxL/DfcsqDg/ /L9HqKWon8gtLKr8uB4Pc8FKYYrtwEJAsEYxumxN/9fSdYmzi/UhHsjlRijCQoMvnNadharJUJvRvc34rxSaisdyvj5O9LOXlpHyd6/mcdzbj3qX81QS78vE qjvKfqt5OsI4JW4oNca+8n0fNGGQX1eFXKhaR3uRPRaE+LbsEzj2JuPQUjBV8h3rX4iQnQbPrmmnNhzh+AtQsrimGsmxBg== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This script helps to create bonding network devices based on synthetic NIC (the virtual network adapter usually provided by Hyper-V) and the matching VF NIC (SRIOV virtual function). So the synthetic NIC and VF NIC can function as one network device, and fail over to the synthetic NIC if VF is down. Signed-off-by: Haiyang Zhang Reviewed-by: K. Y. Srinivasan --- v2: Make it to be distro neutral. --- tools/hv/bondvf.sh | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 79 insertions(+), 0 deletions(-) create mode 100755 tools/hv/bondvf.sh diff --git a/tools/hv/bondvf.sh b/tools/hv/bondvf.sh new file mode 100755 index 0000000..ec7abf1 --- /dev/null +++ b/tools/hv/bondvf.sh @@ -0,0 +1,79 @@ +#!/bin/bash + +# The script helps creating bonding network devices based on synthetic NIC +# (the virtual network adapter usually provided by Hyper-V) and the matching +# VF NIC (SRIOV virtual function). So the synthetic NIC and VF NIC can +# function as one network device, and fail over to the synthetic NIC if VF is +# down. +# +# Usage: +# - After configured vSwitch and vNIC with SRIOV, start Linux virtual +# machine (VM) +# - Run this script on the VM. It will list the NIC pairs which should be +# bonded together. Also indicates which one should be the primary slave. +# - User may create bonding NIC configurations based on the Distro manual. +# The bonding mode shoudl be "active-backup". +# Then, reboot the VM, so that the bonding config are enabled. +# + +sysdir=/sys/class/net +netvsc_cls={f8615163-df3e-46c5-913f-f2d2f965ed0e} +bondcnt=0 + +# Get a list of ethernet names +list_eth=(`cd $sysdir && ls -d */ | cut -d/ -f1 | grep -v bond`) +eth_cnt=${#list_eth[@]} + +echo List of net devices: + +# Get the MAC addresses +for (( i=0; i < $eth_cnt; i++ )) +do + list_mac[$i]=`cat $sysdir/${list_eth[$i]}/address` + echo ${list_eth[$i]}, ${list_mac[$i]} +done + +# Find NIC with matching MAC +for (( i=0; i < $eth_cnt-1; i++ )) +do + for (( j=i+1; j < $eth_cnt; j++ )) + do + if [ "${list_mac[$i]}" = "${list_mac[$j]}" ] + then + list_match[$i]=${list_eth[$j]} + break + fi + done +done + +function create_bond_cfg { + echo $'\nBond name:' $1 + echo should include primary slave: $2, secondary slave: $3 +} + +function create_bond { + local bondname=bond$bondcnt + + local class_id1=`cat $sysdir/$1/device/class_id 2>/dev/null` + local class_id2=`cat $sysdir/$2/device/class_id 2>/dev/null` + + if [ "$class_id1" = "$netvsc_cls" ] + then + create_bond_cfg $bondname $2 $1 + elif [ "$class_id2" = "$netvsc_cls" ] + then + create_bond_cfg $bondname $1 $2 + else + return 0 + fi + + let bondcnt=bondcnt+1 +} + +for (( i=0; i < $eth_cnt-1; i++ )) +do + if [ -n "${list_match[$i]}" ] + then + create_bond ${list_eth[$i]} ${list_match[$i]} + fi +done -- 1.7.4.1