4:07 a.m.
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
I checked the /sys/class folder for my HBA device that I want to use its
NPIV feature, it's there:
/sys/class/fc_host/host20/vport_create
I can create a vHBA by using "echo 'xxxx:xxxx' > ./vport_create", a
new
fc host will be created after that.
But I can't find any FC host with:
#virsh nodedev-list --cap fc_host
SCSI hosts can be found for above "nodedev-list --cap scsi_host".
The libvirt I am working on is based ver 1.0.5, I checked the code and
found below function is seems related with this issue:
src/util/virutil.c:
int
virIsCapableVport(const char *sysfs_prefix,
int host)
This function looks up if there is "vport_create" file under
/sys/class/fc_host/host20, as the way to decide if a HBA device is
capable of vport operation.
But seems this file is not compiled and virsh doesn't call it in my
source code environment... is there any tips ?
BRs,
Dennis
5:05 a.m.
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
I checked the /sys/class folder for my HBA device that I want to use its NPIV
feature, it's there:
/sys/class/fc_host/host20/vport_create
I can create a vHBA by using "echo 'xxxx:xxxx' > ./vport_create", a
new fc
host will be created after that.
But I can't find any FC host with:
#virsh nodedev-list --cap fc_host
SCSI hosts can be found for above "nodedev-list --cap scsi_host".
The libvirt I am working on is based ver 1.0.5, I checked the code and found
below function is seems related with this issue:
src/util/virutil.c:
int
virIsCapableVport(const char *sysfs_prefix,
int host)
This function looks up if there is "vport_create" file under
/sys/class/fc_host/host20, as the way to decide if a HBA device is capable of
vport operation.
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
9:33 p.m.
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
4203
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Ján Tomko