| Message ID | 1465593792-31672-1-git-send-email-haiyangz@microsoft.com |
|---|---|
| State | Rejected, archived |
| Delegated to: | David Miller |
| Headers | show |
From: Haiyang Zhang <haiyangz@microsoft.com> Date: Fri, 10 Jun 2016 14:23:12 -0700 > 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 <haiyangz@microsoft.com> > Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> > --- > v2: Make it to be distro neutral. This tool doesn't configure anything. It fishes information out of sysfs and prints it out. I don't think this is useful, not appropriate for the kernel tools subdirectory at all. When I said make it distro neutral, that meant if you wanted to submit this again you were expected to do the hard work of making it configure things properly on all major distributions.
> -----Original Message----- > From: David Miller [mailto:davem@davemloft.net] > Sent: Friday, June 10, 2016 9:14 PM > To: Haiyang Zhang <haiyangz@microsoft.com> > Cc: netdev@vger.kernel.org; KY Srinivasan <kys@microsoft.com>; > olaf@aepfle.de; vkuznets@redhat.com; linux-kernel@vger.kernel.org; > driverdev-devel@linuxdriverproject.org > Subject: Re: [PATCH net-next,v2] tools: hv: Add a script to help bonding > synthetic and VF NICs > > From: Haiyang Zhang <haiyangz@microsoft.com> > Date: Fri, 10 Jun 2016 14:23:12 -0700 > > > 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 <haiyangz@microsoft.com> > > Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> > > --- > > v2: Make it to be distro neutral. > > This tool doesn't configure anything. > > It fishes information out of sysfs and prints it out. > > I don't think this is useful, not appropriate for the kernel > tools subdirectory at all. > > When I said make it distro neutral, that meant if you wanted to submit > this again you were expected to do the hard work of making it > configure things properly on all major distributions. The major distros supported by Hyper-V include RHEL, SLES, and Ubuntu. I will put them into the configuration scripts -- is this sufficient? Thanks, - Haiyang
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