thr3ads.net - libvirt users - Re: [libvirt-users] Getting "unknown device type" when attaching NPIV (vHBA) to vm [Feb 2016]

If this information is useful, please help other people find it:
Share via:

Vaknin, Rami

2016-Feb-08 23:01 UTC

Re: [libvirt-users] Getting "unknown device type" when attaching NPIV (vHBA) to vm

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@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

Laine Stump

2016-Feb-09 00:13 UTC

head link

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
> 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@redhat.com
> https://www.redhat.com/mailman/listinfo/libvirt-users
>

Vaknin, Rami

2016-Feb-12 20:59 UTC

head link

Re: [libvirt-users] Getting "unknown device type" when attaching NPIV (vHBA) to vm

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@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
>
> _______________________________________________
> libvirt-users mailing list
> libvirt-users@redhat.com<mailto:libvirt-users@redhat.com>
> https://www.redhat.com/mailman/listinfo/libvirt-users
>

Maybe Matching Threads

Search for more apparently analagous threads

libvirt users - Feb 2016 - Re: Getting "unknown device type" when attaching NPIV (vHBA) to vm

Re: [libvirt-users] Getting "unknown device type" when attaching NPIV (vHBA) to vm

Re: [libvirt-users] Getting "unknown device type" when attaching NPIV (vHBA) to vm

Re: [libvirt-users] Getting "unknown device type" when attaching NPIV (vHBA) to vm

Maybe Matching Threads