3:48 p.m.
Hi,
I'm trying to attach a host FC HBA to VM (NPIV).
Running ovirt 3.5 on CentOS 6.7, libvirt-0.10.2-46.el6_6.6.x86_64, I created vHBA using
nodedev-create command - see below HBA and vHBA.
I wrote a vdsm hook which appends the vHBA xml stanza to the devices xml element but the
vm start starts without the vHBA device.
Also, when trying to attach the device manually as a live device - I get:
2016-02-01 21:30:24.216+0000: 129764: debug : qemuDomainObjBeginJobInternal:847 : Starting
job: modify (async=none)
2016-02-01 21:30:24.216+0000: 129764: error : virDomainDeviceDefParse:8136 : XML error:
unknown device type
Could you please help?
virsh # nodedev-dumpxml scsi_host6
<device>
<name>scsi_host6</name>
<parent>pci_0000_08_00_0</parent>
<capability type='scsi_host'>
<host>6</host>
<capability type='fc_host'>
<wwnn>20000024ff57d848</wwnn>
<wwpn>21000024ff57d848</wwpn>
<fabric_wwn>20018c604f101321</fabric_wwn>
</capability>
<capability type='vport_ops' />
</capability>
</device>
virsh # nodedev-dumpxml scsi_host15
<device>
<name>scsi_host15</name>
<parent>scsi_host6</parent>
<capability type='scsi_host'>
<host>15</host>
<capability type='fc_host'>
<wwnn>5001a4a84992572a</wwnn>
<wwpn>5001a4a76965d7b8</wwpn>
<fabric_wwn>20018c604f101321</fabric_wwn>
</capability>
</capability>
</device>
The xml I appends:
<devices>
...
<device>
<name>scsi_host16</name>
<parent>scsi_host7</parent>
<capability type="scsi_host">
<host>16</host>
<capability type="fc_host">
<wwnn>5001a4a8cd978a73</wwnn>
<wwpn>5001a4afa86a7378</wwpn>
<fabric_wwn>20018c604f101411</fabric_wwn>
</capability>
</capability>
</device>
<device>
<name>scsi_host15</name>
<parent>scsi_host6</parent>
<capability type="scsi_host">
<host>15</host>
<capability type="fc_host">
<wwnn>5001a4a84992572a</wwnn>
<wwpn>5001a4a76965d7b8</wwpn>
<fabric_wwn>20018c604f101321</fabric_wwn>
</capability>
</capability>
</device>
</devices>
Thanks,
Rami.
7:48 a.m.
On 01.02.2016 22:48, Vaknin, Rami wrote:
Hi,
I'm trying to attach a host FC HBA to VM (NPIV).
Running ovirt 3.5 on CentOS 6.7, libvirt-0.10.2-46.el6_6.6.x86_64, I created vHBA using
nodedev-create command - see below HBA and vHBA.
I wrote a vdsm hook which appends the vHBA xml stanza to the devices xml element but the
vm start starts without the vHBA device.
Also, when trying to attach the device manually as a live device - I get:
2016-02-01 21:30:24.216+0000: 129764: debug : qemuDomainObjBeginJobInternal:847 :
Starting job: modify (async=none)
2016-02-01 21:30:24.216+0000: 129764: error : virDomainDeviceDefParse:8136 : XML error:
unknown device type
Could you please help?
virsh # nodedev-dumpxml scsi_host6
<device>
<name>scsi_host6</name>
<parent>pci_0000_08_00_0</parent>
<capability type='scsi_host'>
<host>6</host>
<capability type='fc_host'>
<wwnn>20000024ff57d848</wwnn>
<wwpn>21000024ff57d848</wwpn>
<fabric_wwn>20018c604f101321</fabric_wwn>
</capability>
<capability type='vport_ops' />
</capability>
</device>
virsh # nodedev-dumpxml scsi_host15
<device>
<name>scsi_host15</name>
<parent>scsi_host6</parent>
<capability type='scsi_host'>
<host>15</host>
<capability type='fc_host'>
<wwnn>5001a4a84992572a</wwnn>
<wwpn>5001a4a76965d7b8</wwpn>
<fabric_wwn>20018c604f101321</fabric_wwn>
</capability>
</capability>
</device>
The xml I appends:
<devices>
...
<device>
<name>scsi_host16</name>
<parent>scsi_host7</parent>
<capability type="scsi_host">
<host>16</host>
<capability type="fc_host">
<wwnn>5001a4a8cd978a73</wwnn>
<wwpn>5001a4afa86a7378</wwpn>
<fabric_wwn>20018c604f101411</fabric_wwn>
</capability>
</capability>
</device>
<device>
<name>scsi_host15</name>
<parent>scsi_host6</parent>
<capability type="scsi_host">
<host>15</host>
<capability type="fc_host">
<wwnn>5001a4a84992572a</wwnn>
<wwpn>5001a4a76965d7b8</wwpn>
<fabric_wwn>20018c604f101321</fabric_wwn>
</capability>
</capability>
</device>
</devices>
This is not how you attach a hostdev to a domain. You need to be looking
at <hostdev/>:
http://libvirt.org/formatdomain.html#elementsHostDev
Michal
5:01 p.m.
Thank you for your reply,
I'm still getting hard time to attach the hostdev, I couldn't make it work out of
the doc.
I took the address details from:
# ll /sys/bus/scsi/devices/7:*
lrwxrwxrwx 1 root root 0 Feb 8 12:58 /sys/bus/scsi/devices/7:0:0:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-0/target7:0:0/7:0:0:0
lrwxrwxrwx 1 root root 0 Feb 8 12:58 /sys/bus/scsi/devices/7:0:1:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-1/target7:0:1/7:0:1:0
lrwxrwxrwx 1 root root 0 Feb 8 12:58 /sys/bus/scsi/devices/7:0:2:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-2/target7:0:2/7:0:2:0
lrwxrwxrwx 1 root root 0 Feb 8 12:58 /sys/bus/scsi/devices/7:0:3:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-3/target7:0:3/7:0:3:0
and added them (7:0:3:0) to this base xml in various formats instead of the default
zeros:
<hostdev mode="subsystem" " type="scsi">
<source>
<adapter name="scsi_host7"/>
<address bus="0" target="0" unit="0"/>
</source>
<readonly/>
<address bus="0" controller="0" target="0"
type="drive" unit="0"/>
</hostdev>
Libvirt keeps saying:
" error : virDomainHostdevDefParseXMLSubsys:3091 : XML error: unknown host device
source address type 'scsi'"
I still can't figure it out, I still have open questions I can't understand from
the docs:
Am I using the right subsystem type? Or maybe I should attach the host HBA PCI (QLogic)
directly?
Should I use the host scsi_host or should it be the vHBA created uding libvirt?
How exactly I extract the host address and derives the destination address?
-----Original Message-----
From: Michal Privoznik [mailto:mprivozn@redhat.com]
Sent: Wednesday, February 03, 2016 3:49 PM
To: Vaknin, Rami; libvirt-users(a)redhat.com
Subject: Re: [libvirt-users] Getting "unknown device type" when attaching NPIV
(vHBA) to vm
On 01.02.2016 22:48, Vaknin, Rami wrote:
Hi,
I'm trying to attach a host FC HBA to VM (NPIV).
Running ovirt 3.5 on CentOS 6.7, libvirt-0.10.2-46.el6_6.6.x86_64, I created vHBA using
nodedev-create command - see below HBA and vHBA.
I wrote a vdsm hook which appends the vHBA xml stanza to the devices xml element but the
vm start starts without the vHBA device.
Also, when trying to attach the device manually as a live device - I get:
2016-02-01 21:30:24.216+0000: 129764: debug :
qemuDomainObjBeginJobInternal:847 : Starting job: modify (async=none)
2016-02-01 21:30:24.216+0000: 129764: error :
virDomainDeviceDefParse:8136 : XML error: unknown device type
Could you please help?
virsh # nodedev-dumpxml scsi_host6
<device>
<name>scsi_host6</name>
<parent>pci_0000_08_00_0</parent>
<capability type='scsi_host'>
<host>6</host>
<capability type='fc_host'>
<wwnn>20000024ff57d848</wwnn>
<wwpn>21000024ff57d848</wwpn>
<fabric_wwn>20018c604f101321</fabric_wwn>
</capability>
<capability type='vport_ops' />
</capability>
</device>
virsh # nodedev-dumpxml scsi_host15
<device>
<name>scsi_host15</name>
<parent>scsi_host6</parent>
<capability type='scsi_host'>
<host>15</host>
<capability type='fc_host'>
<wwnn>5001a4a84992572a</wwnn>
<wwpn>5001a4a76965d7b8</wwpn>
<fabric_wwn>20018c604f101321</fabric_wwn>
</capability>
</capability>
</device>
The xml I appends:
<devices>
...
<device>
<name>scsi_host16</name>
<parent>scsi_host7</parent>
<capability type="scsi_host">
<host>16</host>
<capability type="fc_host">
<wwnn>5001a4a8cd978a73</wwnn>
<wwpn>5001a4afa86a7378</wwpn>
<fabric_wwn>20018c604f101411</fabric_wwn>
</capability>
</capability>
</device>
<device>
<name>scsi_host15</name>
<parent>scsi_host6</parent>
<capability type="scsi_host">
<host>15</host>
<capability type="fc_host">
<wwnn>5001a4a84992572a</wwnn>
<wwpn>5001a4a76965d7b8</wwpn>
<fabric_wwn>20018c604f101321</fabric_wwn>
</capability>
</capability>
</device>
</devices>
This is not how you attach a hostdev to a domain. You need to be looking at
<hostdev/>:
http://libvirt.org/formatdomain.html#elementsHostDev
Michal
6:13 p.m.
On 02/08/2016 06:01 PM, Vaknin, Rami wrote:
Thank you for your reply,
I'm still getting hard time to attach the hostdev, I couldn't make it work out of
the doc.
I took the address details from:
# ll /sys/bus/scsi/devices/7:*
lrwxrwxrwx 1 root root 0 Feb 8 12:58 /sys/bus/scsi/devices/7:0:0:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-0/target7:0:0/7:0:0:0
lrwxrwxrwx 1 root root 0 Feb 8 12:58 /sys/bus/scsi/devices/7:0:1:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-1/target7:0:1/7:0:1:0
lrwxrwxrwx 1 root root 0 Feb 8 12:58 /sys/bus/scsi/devices/7:0:2:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-2/target7:0:2/7:0:2:0
lrwxrwxrwx 1 root root 0 Feb 8 12:58 /sys/bus/scsi/devices/7:0:3:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-3/target7:0:3/7:0:3:0
and added them (7:0:3:0) to this base xml in various formats instead of the default
zeros:
<hostdev mode="subsystem" " type="scsi">
<source>
<adapter name="scsi_host7"/>
<address bus="0" target="0" unit="0"/>
</source>
<readonly/>
<address bus="0" controller="0" target="0"
type="drive" unit="0"/>
</hostdev>
Libvirt keeps saying:
" error : virDomainHostdevDefParseXMLSubsys:3091 : XML error: unknown host device
source address type 'scsi'"
I still can't figure it out, I still have open questions I can't understand from
the docs:
You said in your original message that you are using libvirt 0.10.2 on
CentOS 6. The documentation that Michal pointed you at says that hostdev
type='scsi' works only since libvirt 1.0.6 - you are trying to do scsi
hostdev which isn't supported in the version of libvirt you're using.
Depending on your requirements, you may be able to assign the scsi
controller (a PCI device) to the guest (but that would require that no
other disk on that same controller be in use by the host or another
guest). Otherwise you should either assign the disk with <disk> (which
will present an emulated device to the guest, using the contents of
/dev/whatever as the content), or build your own libvirt of a later
version (not recommended unless you really know what you're doing).
Am I using the right subsystem type? Or maybe I should attach the host HBA PCI (QLogic)
directly?
Should I use the host scsi_host or should it be the vHBA created uding libvirt?
How exactly I extract the host address and derives the destination address?
-----Original Message-----
From: Michal Privoznik [mailto:mprivozn@redhat.com]
Sent: Wednesday, February 03, 2016 3:49 PM
To: Vaknin, Rami; libvirt-users(a)redhat.com
Subject: Re: [libvirt-users] Getting "unknown device type" when attaching NPIV
(vHBA) to vm
On 01.02.2016 22:48, Vaknin, Rami wrote:
> Hi,
>
> I'm trying to attach a host FC HBA to VM (NPIV).
>
> Running ovirt 3.5 on CentOS 6.7, libvirt-0.10.2-46.el6_6.6.x86_64, I created vHBA
using nodedev-create command - see below HBA and vHBA.
> I wrote a vdsm hook which appends the vHBA xml stanza to the devices xml element but
the vm start starts without the vHBA device.
>
> Also, when trying to attach the device manually as a live device - I get:
> 2016-02-01 21:30:24.216+0000: 129764: debug :
> qemuDomainObjBeginJobInternal:847 : Starting job: modify (async=none)
> 2016-02-01 21:30:24.216+0000: 129764: error :
> virDomainDeviceDefParse:8136 : XML error: unknown device type
>
> Could you please help?
>
> virsh # nodedev-dumpxml scsi_host6
> <device>
> <name>scsi_host6</name>
> <parent>pci_0000_08_00_0</parent>
> <capability type='scsi_host'>
> <host>6</host>
> <capability type='fc_host'>
> <wwnn>20000024ff57d848</wwnn>
> <wwpn>21000024ff57d848</wwpn>
> <fabric_wwn>20018c604f101321</fabric_wwn>
> </capability>
> <capability type='vport_ops' />
> </capability>
> </device>
>
>
> virsh # nodedev-dumpxml scsi_host15
> <device>
> <name>scsi_host15</name>
> <parent>scsi_host6</parent>
> <capability type='scsi_host'>
> <host>15</host>
> <capability type='fc_host'>
> <wwnn>5001a4a84992572a</wwnn>
> <wwpn>5001a4a76965d7b8</wwpn>
> <fabric_wwn>20018c604f101321</fabric_wwn>
> </capability>
> </capability>
> </device>
>
>
> The xml I appends:
>
> <devices>
> ...
> <device>
> <name>scsi_host16</name>
> <parent>scsi_host7</parent>
> <capability type="scsi_host">
> <host>16</host>
> <capability type="fc_host">
> <wwnn>5001a4a8cd978a73</wwnn>
> <wwpn>5001a4afa86a7378</wwpn>
> <fabric_wwn>20018c604f101411</fabric_wwn>
> </capability>
> </capability>
> </device>
> <device>
> <name>scsi_host15</name>
> <parent>scsi_host6</parent>
> <capability type="scsi_host">
> <host>15</host>
> <capability type="fc_host">
> <wwnn>5001a4a84992572a</wwnn>
> <wwpn>5001a4a76965d7b8</wwpn>
> <fabric_wwn>20018c604f101321</fabric_wwn>
> </capability>
> </capability>
> </device>
>
> </devices>
>
This is not how you attach a hostdev to a domain. You need to be looking at
<hostdev/>:
http://libvirt.org/formatdomain.html#elementsHostDev
Michal
_______________________________________________
libvirt-users mailing list
libvirt-users(a)redhat.com
https://www.redhat.com/mailman/listinfo/libvirt-users
2:59 p.m.
Hi again :-)
Upgraded my env - Centos 7.1 host, ovirt 3.6, libvirt-1.2.8-16.el7_1.5.x86_64.
With "sgio='filtered'" in my scsi host-device-assignment xml I'm
getting:
"internal error: 'sgio' is not supported for SCSI generic device yet"
Without it I'm getting:
"internal error: Failed to open /sys/bus/scsi/devices/12:0:0:0/scsi_generic"
None of the devices under /sys/bus/scsi/devices have "scsi_generic" file anyway
so I'm not yet even in a wrong address situation:
# for i in `ls -1 /sys/bus/scsi/devices` ; do cat $i/scsi_generic ; done 2> /dev/null
#
My scenario includes multiple VMs which use the same host HBA, each VM access its own
mapped volumes on a storage server (over FC).
I'd like to create vHBA per VM - the guests OS should handle luns directly without the
host OS to intermediate, hence "Direct LUN" or assigning disk to the vm
isn't good for me.
Assigning PCI to the guest is also impossible because the PCI should be used by multiple
VMs.
Is there a way to fulfil my requirements using libvirt+qemu?
-----Original Message-----
From: sendmail [mailto:justsendmailnothingelse@gmail.com] On Behalf Of Laine Stump
Sent: Tuesday, February 09, 2016 2:13 AM
To: libvirt-users(a)redhat.com
Cc: Vaknin, Rami; Michal Privoznik
Subject: Re: [libvirt-users] Getting "unknown device type" when attaching NPIV
(vHBA) to vm
On 02/08/2016 06:01 PM, Vaknin, Rami wrote:
Thank you for your reply,
I'm still getting hard time to attach the hostdev, I couldn't make it work out of
the doc.
I took the address details from:
# ll /sys/bus/scsi/devices/7:*
lrwxrwxrwx 1 root root 0 Feb 8 12:58 /sys/bus/scsi/devices/7:0:0:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-
0/target7:0:0/7:0:0:0 lrwxrwxrwx 1 root root 0 Feb 8 12:58
/sys/bus/scsi/devices/7:0:1:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-
1/target7:0:1/7:0:1:0 lrwxrwxrwx 1 root root 0 Feb 8 12:58
/sys/bus/scsi/devices/7:0:2:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-
2/target7:0:2/7:0:2:0 lrwxrwxrwx 1 root root 0 Feb 8 12:58
/sys/bus/scsi/devices/7:0:3:0 ->
../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-
3/target7:0:3/7:0:3:0
and added them (7:0:3:0) to this base xml in various formats instead of the default
zeros:
<hostdev mode="subsystem" " type="scsi">
<source>
<adapter name="scsi_host7"/>
<address bus="0" target="0" unit="0"/>
</source>
<readonly/>
<address bus="0" controller="0" target="0"
type="drive" unit="0"/>
</hostdev>
Libvirt keeps saying:
" error : virDomainHostdevDefParseXMLSubsys:3091 : XML error: unknown host device
source address type 'scsi'"
I still can't figure it out, I still have open questions I can't understand from
the docs:
You said in your original message that you are using libvirt 0.10.2 on CentOS 6. The
documentation that Michal pointed you at says that hostdev type='scsi' works only
since libvirt 1.0.6 - you are trying to do scsi hostdev which isn't supported in the
version of libvirt you're using.
Depending on your requirements, you may be able to assign the scsi controller (a PCI
device) to the guest (but that would require that no other disk on that same controller be
in use by the host or another guest). Otherwise you should either assign the disk with
<disk> (which will present an emulated device to the guest, using the contents of
/dev/whatever as the content), or build your own libvirt of a later version (not
recommended unless you really know what you're doing).
Am I using the right subsystem type? Or maybe I should attach the host HBA PCI (QLogic)
directly?
Should I use the host scsi_host or should it be the vHBA created uding libvirt?
How exactly I extract the host address and derives the destination address?
-----Original Message-----
From: Michal Privoznik [mailto:mprivozn@redhat.com]
Sent: Wednesday, February 03, 2016 3:49 PM
To: Vaknin, Rami; libvirt-users@redhat.com<mailto:libvirt-users@redhat.com>
Subject: Re: [libvirt-users] Getting "unknown device type" when
attaching NPIV (vHBA) to vm
On 01.02.2016 22:48, Vaknin, Rami wrote:
> Hi,
>
> I'm trying to attach a host FC HBA to VM (NPIV).
>
> Running ovirt 3.5 on CentOS 6.7, libvirt-0.10.2-46.el6_6.6.x86_64, I created vHBA
using nodedev-create command - see below HBA and vHBA.
> I wrote a vdsm hook which appends the vHBA xml stanza to the devices xml element but
the vm start starts without the vHBA device.
>
> Also, when trying to attach the device manually as a live device - I get:
> 2016-02-01 21:30:24.216+0000: 129764: debug :
> qemuDomainObjBeginJobInternal:847 : Starting job: modify (async=none)
> 2016-02-01 21:30:24.216+0000: 129764: error :
> virDomainDeviceDefParse:8136 : XML error: unknown device type
>
> Could you please help?
>
> virsh # nodedev-dumpxml scsi_host6
> <device>
> <name>scsi_host6</name>
> <parent>pci_0000_08_00_0</parent>
> <capability type='scsi_host'>
> <host>6</host>
> <capability type='fc_host'>
> <wwnn>20000024ff57d848</wwnn>
> <wwpn>21000024ff57d848</wwpn>
> <fabric_wwn>20018c604f101321</fabric_wwn>
> </capability>
> <capability type='vport_ops' />
> </capability>
> </device>
>
>
> virsh # nodedev-dumpxml scsi_host15
> <device>
> <name>scsi_host15</name>
> <parent>scsi_host6</parent>
> <capability type='scsi_host'>
> <host>15</host>
> <capability type='fc_host'>
> <wwnn>5001a4a84992572a</wwnn>
> <wwpn>5001a4a76965d7b8</wwpn>
> <fabric_wwn>20018c604f101321</fabric_wwn>
> </capability>
> </capability>
> </device>
>
>
> The xml I appends:
>
> <devices>
> ...
> <device>
> <name>scsi_host16</name>
> <parent>scsi_host7</parent>
> <capability type="scsi_host">
> <host>16</host>
> <capability type="fc_host">
> <wwnn>5001a4a8cd978a73</wwnn>
> <wwpn>5001a4afa86a7378</wwpn>
> <fabric_wwn>20018c604f101411</fabric_wwn>
> </capability>
> </capability>
> </device>
> <device>
> <name>scsi_host15</name>
> <parent>scsi_host6</parent>
> <capability type="scsi_host">
> <host>15</host>
> <capability type="fc_host">
> <wwnn>5001a4a84992572a</wwnn>
> <wwpn>5001a4a76965d7b8</wwpn>
> <fabric_wwn>20018c604f101321</fabric_wwn>
> </capability>
> </capability>
> </device>
>
> </devices>
>
This is not how you attach a hostdev to a domain. You need to be looking at
<hostdev/>:
http://libvirt.org/formatdomain.html#elementsHostDev
Michal
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Vaknin, Rami