On 12/07/2016 08:16 PM, Jim Fehlig wrote: > 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@xxxxxxxxxxxxxxxxxx> >>> --- >>> 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? > I've been buried by other things, but didn't want to ignore completely... Unfortunately I haven't found a way to use configure w/ vHBA either - I really was really hoping something could be done. It would have been so nice to just use XML that would include the scsi_hostN of the vHBA. I need to find the time to work through what targetcli does - I think it creates another scsi_hostN which is essentially what is used. That'd be similar enough to what vport_create does. Then it would be (hah!) just a matter of some code ;-) perhaps... The example Eric has in the cover used multipath which is not something I generally configure/use. I found some example using google to not use multipath, but didn't spend too much time with it. I got it to do something, but then got pinged to work on something else (you know how that goes!). John -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
