Hi, All

I want to make the qemu communicate with iscsi target using libiscsi directly, and I 
followed https://review.openstack.org/#/c/135854/ to add 
'volume_drivers = iscsi=nova.virt.libvirt.volume.LibvirtNetVolumeDriver¡¯ in nova.conf
 and then restarted nova services and cinder services, but still the volume configuration of vm is as bellow:

    <disk type='block' device='disk'>
      <driver name='qemu' type='raw' cache='none'/>
      <source dev='/dev/disk/by-path/ip-10.75.195.205:3260-iscsi-iqn.2010-10.org.openstack:volume-076bb429-67fd-4c0c-9ddf-0dc7621a975a-lun-0'/>
      <target dev='vdb' bus='virtio'/>
      <serial>076bb429-67fd-4c0c-9ddf-0dc7621a975a</serial>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </disk>


I use centos7 and Liberty version of OpenStack.
Could anybody tell me how can I achieve it?


Thanks.