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>
> ---
> 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?
Regards,
Jim