On 08/28/2013 05:25 AM, Brian Rak wrote:
If I'm using the SR-IOV Pool assignment method (from http://wiki.libvirt.org/page/Networking#Assignment_from_a_pool_of_SRIOV_VFs_... ), how would I check how many virtual functions are already in use?
Hi Brian Hope the following can help you. [root@sriov2 images]# virsh net-dumpxml hostnet <network> <name>hostnet</name> <uuid>6b49be3c-bb91-c16d-b475-2929678720f4</uuid> <forward mode='hostdev' managed='yes'> <pf dev='eth2'/> </forward> </network> [root@sriov2 images]# virsh start r6 Domain r6 started [root@sriov2 images]# virsh attach-device r6 vfpool.xml Device attached successfully [root@sriov2 images]# virsh attach-device r6 vfpool.xml Device attached successfully [root@sriov2 images]# virsh net-dumpxml hostnet <network *connections='2'*> *<=====the value of connections means how many VFs in the pool are using.* <name>hostnet</name> <uuid>6b49be3c-bb91-c16d-b475-2929678720f4</uuid> <forward mode='hostdev' managed='yes'> <pf dev='eth2'/> <address type='pci' domain='0x0000' bus='0x0f' slot='0x10' function='0x0'/> <address type='pci' domain='0x0000' bus='0x0f' slot='0x10' function='0x2'/> <address type='pci' domain='0x0000' bus='0x0f' slot='0x10' function='0x4'/> <address type='pci' domain='0x0000' bus='0x0f' slot='0x10' function='0x6'/> <address type='pci' domain='0x0000' bus='0x0f' slot='0x11' function='0x0'/> <address type='pci' domain='0x0000' bus='0x0f' slot='0x11' function='0x2'/> <address type='pci' domain='0x0000' bus='0x0f' slot='0x11' function='0x4'/> </forward> </network>
Is there a method other then looping through all the active guests and determining if they're using the SR-IOV interface?
[root@sriov2 images]# virsh dumpxml r6|grep interface -A 4 <interface type='network'> <mac address='52:54:00:0a:16:28'/> <source network=*'hostnet'/*> <alias name='*hostdev0'/*> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <interface type='network'> <mac address='52:54:00:08:62:66'/> <source network='*hostnet'*/> <alias name='*hostdev1*'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </interface>
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