Re: [libvirt] [PATCH v4 9/9] docs: Add vhost-scsi

On 11/22/2016 02:16 PM, John Ferlan wrote: > > > On 11/21/2016 10:58 PM, Eric Farman wrote: >> Signed-off-by: Eric Farman <farman(a)linux.vnet.ibm.com&gt; >> --- >> docs/formatdomain.html.in | 24 ++++++++++++++++++++++++ >> 1 file changed, 24 insertions(+) >> > > This will get squashed in with the conf patch. I'll also generate the > news.html.in entry: > > <li>vhost-scsi: Add support scsi_host hostdev passthrough<br/> > Add the capability to pass through a scsi_host HBA and the > associated LUNs to the guest. > </li> > > > ACK - > > I'll push these in a bit, just seeing what I get on my test system... Of > course I'm also curious what would happen if I try to pass through a > vHBA ;-)... I have unsuccessfully tried it, but not sure how to correctly specify the vHBA in domXML. First, create a vHBA: cat vhba.xml <device> <parent_wwpn>2100001b32847342</parent_wwpn> <parent_wwnn>2000001b32847342</parent_wwnn> <capability type='scsi_host'> <capability type='fc_host'> <wwnn>9990100000000001</wwnn> <wwpn>9990000000000001</wwpn> </capability> </capability> </device> virsh nodedev-create vhba.xml (@John: Notice I'm using your "Allow creation of vHBA by parent_wwnn/wwpn or fabric_name" series. I'll try to respond with review comments on that series tomorrow.) Add the vHBA to domain config using a variant of Eric's example: <hostdev mode='subsystem' type='scsi_host'> <source protocol='vhost' wwpn='naa.9990000000000001'/> <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x1000'/> </hostdev> Start the VM: virsh start test error: Failed to start domain test error: Path '/sys/kernel/config/target/vhost//naa.5001405df3e54061' is not accessible: No such file or directory It looks like this patch series only handles scsi_host created with targetcli, but I didn't look at all the patches closely. Is it possible to use vhost-scsi with NPIV vport (vHBA)? If so, any pointers on how to specify the vHBA in <hostdev> element?