Re: [libvirt-users] Question about vport operation for FC HBA
On 06/20/2013 06:05 PM, Ján Tomko wrote:
On 06/20/2013 11:07 AM, Dennis Chen wrote:
> Hi,
>
> When I want to use NPIV for a FC HBA in my Linux machine, I got the below
> error msg in virsh:
>
> virsh # nodedev-create /home/kvm/vHBA.xml
> error: Failed to create node device from /home/kvm/vHBA.xml
> error: internal error Parent device scsi_host20 is not capable of vport
> operations
> ...
> But seems this file is not compiled and virsh doesn't call it in my source
> code environment... is there any tips ?
Hi, there was a bug in the nodedev driver, it used ../fc_host/host0/.. even
when the host number was different.
It should be fixed by this commit (pushed in the git, but not yet a part of a
release):
http://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=371c155
Hopefully that fixes it for you.
Relevant bugs:
https://bugzilla.redhat.com/show_bug.cgi?id=952105
https://bugzilla.redhat.com/show_bug.cgi?id=973543
Jan
After use the latest libvirt 1.0.6 + your patch, it resolved below
issues in my environment:
1. The internal error Parent device scsi_host20 is not capable of vport
2. nodedev-dumpxml can get correct info of the HBA device.
But seems there's another problem---
My vHBA.xml:
<device>
<parent>scsi_host20</parent>
<capability type='scsi_host'>
<capability type='fc_host'>
<wwpn>20008c7cff30be58</wwpn>
<wwnn>10008d7cff30beb8</wwnn>
</capability>
</capability>
</device>
The output of the nodedev-create command:
virsh # nodedev-create /home/kvm/vHBA.xml
(after about 30s silence...)
error: Failed to create node device from /home/kvm/vHBA.xml
error: Node device not found
Actually I found that the new vHBA device is generated sucessfully
(scsi_host31), and the "nodedev-dumpxml" for this device is:
virsh # nodedev-dumpxml scsi_host31
<device>
<name>scsi_host31</name>
<parent>scsi_host20</parent>
<capability type='scsi_host'>
<host>31</host>
<capability type='fc_host'>
<wwnn>20008c7cff30be58</wwnn> ----- the wwpn value in vHBA.xml
<wwpn>10008d7cff30beb8</wwpn> ----- the wwnn value in vHBA.xml
<fabric_wwn>0</fabric_wwn>
</capability>
</capability>
</device>
any suggestion?
BRs,
Dennis