[libvirt-users] Two VF cards

[Dominik Mostowiec]

Thanks for your response.

For two different mac addresses problem is the same.
"error: internal error process exited while connecting to monitor: kvm:
-device pci-assign,configfd=25,host=01:10.1,id=hostdev0,bus=pci.0,addr=0x4:
Duplicate ID 'hostdev0' for device"

domain:
<domain xmlns:qemu="http://libvirt.org/schemas/domain/qemu/1.0" type="kvm">
        <name>one-466</name>
        <vcpu>1</vcpu>
        <memory>1781760</memory>
        <os>
                <type arch="x86_64">hvm</type>
                <boot dev="hd"/>
        </os>
        <devices>
                <emulator>/usr/bin/kvm</emulator>
                <disk type="file" device="disk">
                        <source
file="/nebula/nebula/var//datastores/0/466/disk.0"/>
                        <target dev="hda" bus="virtio"/>
                        <driver name="qemu" type="raw" cache="default"/>
                </disk>
                <disk type="file" device="disk">
                        <source
file="/nebula/nebula/var//datastores/0/466/disk.1"/>
                        <target dev="vdb" bus="virtio"/>
                        <driver name="qemu" type="raw" cache="default"/>
                </disk>
                <graphics type="vnc" listen="0.0.0.0" port="-1"/>
                <interface type="network">
                        <source network="vnet0"/>
                        <mac address="52:54:0a:b1:48:91"/>
                </interface>
                <interface type="network">
                        <source network="vnet1"/>
                        <mac address="52:54:0a:b1:48:92"/>
                </interface>
        </devices>
        <features>
                <acpi/>
        </features>
        <devices><serial type="pty"><source path="/dev/pts/477"/><target
port="0"/></serial><console type="pty" tty="/dev/pts/477"><source
path="/dev/pts/477"/><target port="0"/></console></devices>
</domain>

Networks:
cat /etc/libvirt/qemu/networks/vnet0.xml
<!--
WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
OVERWRITTEN AND LOST. Changes to this xml configuration should be made
using:
  virsh net-edit vnet0
or other application using the libvirt API.
-->

<network>
  <name>vnet0</name>
  <uuid>1b6a3506-d9e0-4e1e-bbff-6f700b8dc80b</uuid>
  <forward mode='hostdev' managed='yes'>
    <pf dev='eth0'/>
  </forward>
</network>

cat /etc/libvirt/qemu/networks/vnet1.xml
<!--
WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
OVERWRITTEN AND LOST. Changes to this xml configuration should be made
using:
  virsh net-edit vnet1
or other application using the libvirt API.
-->

<network>
  <name>vnet1</name>
  <uuid>11feb088-d609-4177-86d7-ac3b9467a3e8</uuid>
  <forward mode='hostdev' managed='yes'>
    <pf dev='eth1'/>
  </forward>
</network>

--
Dominik


2013/5/17 Michal Privoznik <mprivozn at redhat.com>

> On 16.05.2013 23:45, Dominik Mostowiec wrote:
> > Hi,
> > I try to add 2 VF functions to VM via network.
> > Livirt networks:
> > vnet0:
> > <network>
> >   <name>vnet0</name>
> >   <forward mode='hostdev' managed='yes'>
> >     <pf dev='eth0'/>
> >   </forward>
> > </network>
> >
> > vnet1:
> > <network>
> >   <name>vnet0</name>
> >   <forward mode='hostdev' managed='yes'>
> >     <pf dev='eth1'/>
> >   </forward>
> > </network>
> >
> > In VM configuration:
> >  <interface type="network">
> >      <source network="vnet0"/>
> >      <mac address="52:54:0a:b1:48:07"/>
> >  </interface>
> >  <interface type="network">
> >      <source network="vnet1"/>
> >      <mac address="52:54:0a:b1:48:07"/>
> >  </interface>
>
> This is not a good idea to have two NICs sharing the same MAC.
>
> >
> > VM can't start because:
> >  kvm: -device
> > pci-assign,configfd=24,host=01:10.1,id=hostdev0,bus=pci.0,addr=0x4:
> > Duplicate ID 'hostdev0' for device
> >
> > libvirt version 1.0.5.
> >
> > What i am doing wrong?
> >
>
>
> I guess nothing. Libvirt has generated the same IDs for two devices
> which is obviously libvirt's faul even in case two NICs sharing the same
> MAC. Can you post full domain XML (possibly with network XMLs)? I'll try
> to reproduce and maybe I'll find what's wrong.
>
> Michal
>



-- 
Pozdrawiam
Dominik
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