4:06 a.m.
Hi,
I'm currently trying to implement device custom properties infrastructure in
ovirt-engine.
During discussion with Yair, we found out, that it's not clear, for what type of
devices
custom properties should be available? In engine we have the VmDeviceType enum which
contains following values:
FLOPPY("floppy", "14"),
DISK("disk", "17"),
CDROM("cdrom", "15"),
INTERFACE("interface", "10"),
BRIDGE("bridge", "3"),
VIDEO("video", "20"),
USB("usb", "23"),
CONTROLLER("controller", "23"),
REDIR("redir", "23"),
SPICEVMC("spicevmc", "23"),
QXL("qxl"),
CIRRUS("cirrus"),
SOUND("sound"),
ICH6("ich6"),
AC97("ac97"),
MEMBALLOON("memballoon"),
SMARTCARD("smartcard"),
BALLOON("balloon"),
OTHER("other", "0"),
UNKNOWN("unknown", "-1");
But VmDevice class has two String attributes device and type. So for example a disk is a
device
which has device set to disk and type set to disk (according to VmDeviceCommonUtils.isDisk
method).
So my question is, if I have a custom properties for disk, will they be available for all
disk
devices (disk, cdrom, floppy, ...) or only for real disk? So should we support custom
properties
for all VmDeviceType enum value separately?
Thanks for suggestions
Martin
12:13 a.m.
----- Original Message -----
From: "Martin Perina" <mperina(a)redhat.com>
To: engine-devel(a)ovirt.org
Sent: Friday, May 3, 2013 11:06:05 AM
Subject: [Engine-devel] Device custom properties
Hi,
I'm currently trying to implement device custom properties infrastructure in
ovirt-engine.
During discussion with Yair, we found out, that it's not clear, for what type
of devices
custom properties should be available? In engine we have the VmDeviceType
enum which
contains following values:
FLOPPY("floppy", "14"),
DISK("disk", "17"),
CDROM("cdrom", "15"),
INTERFACE("interface", "10"),
BRIDGE("bridge", "3"),
VIDEO("video", "20"),
USB("usb", "23"),
CONTROLLER("controller", "23"),
REDIR("redir", "23"),
SPICEVMC("spicevmc", "23"),
QXL("qxl"),
CIRRUS("cirrus"),
SOUND("sound"),
ICH6("ich6"),
AC97("ac97"),
MEMBALLOON("memballoon"),
SMARTCARD("smartcard"),
BALLOON("balloon"),
OTHER("other", "0"),
UNKNOWN("unknown", "-1");
But VmDevice class has two String attributes device and type. So for example
a disk is a device
which has device set to disk and type set to disk (according to
VmDeviceCommonUtils.isDisk method).
So my question is, if I have a custom properties for disk, will they be
available for all disk
devices (disk, cdrom, floppy, ...) or only for real disk? So should we
support custom properties
for all VmDeviceType enum value separately?
Thanks for suggestions
Martin
I've looked at VDSM code, here are device type even more detailed (please correct me
if I'm wrong):
DEVICE TYPE
'disk' 'disk', 'cdrom', 'floppy'
'interface' 'bridge'
'video' 'cirrus', 'std', 'vmware', 'qxl',
'none'
'sound' 'ac97', 'pcspk', 'sb16', 'es1370',
'hda', 'ich6'
'controller' 'ide', 'fdc', 'scsi', 'sata',
'usb', 'ccid', 'virtio-serial'
'balloon' 'memballoon'
'channel' 'unix', 'spicevmc', 'virtio-serial'
'console' 'console'
'smartcard' 'smartcard'
'watchdog' 'watchdog'
So I suggest to refactor engine device type to match VDSM side and engine will support
device
custom properties to be set for these devices types:
'disk', 'interface', 'video', 'sound',
'controller', 'balloon', 'channel', 'console',
'smartcard', 'watchdog'
Is it ok?
Martin
2:18 a.m.
----- Original Message -----
From: "Martin Perina" <mperina(a)redhat.com>
To: engine-devel(a)ovirt.org
Sent: Saturday, May 4, 2013 8:13:44 AM
Subject: Re: [Engine-devel] Device custom properties
----- Original Message -----
> From: "Martin Perina" <mperina(a)redhat.com>
> To: engine-devel(a)ovirt.org
> Sent: Friday, May 3, 2013 11:06:05 AM
> Subject: [Engine-devel] Device custom properties
>
> Hi,
>
> I'm currently trying to implement device custom properties infrastructure
> in
> ovirt-engine.
> During discussion with Yair, we found out, that it's not clear, for what
> type
> of devices
> custom properties should be available? In engine we have the VmDeviceType
> enum which
> contains following values:
>
> FLOPPY("floppy", "14"),
> DISK("disk", "17"),
> CDROM("cdrom", "15"),
> INTERFACE("interface", "10"),
> BRIDGE("bridge", "3"),
> VIDEO("video", "20"),
> USB("usb", "23"),
> CONTROLLER("controller", "23"),
> REDIR("redir", "23"),
> SPICEVMC("spicevmc", "23"),
> QXL("qxl"),
> CIRRUS("cirrus"),
> SOUND("sound"),
> ICH6("ich6"),
> AC97("ac97"),
> MEMBALLOON("memballoon"),
> SMARTCARD("smartcard"),
> BALLOON("balloon"),
> OTHER("other", "0"),
> UNKNOWN("unknown", "-1");
>
> But VmDevice class has two String attributes device and type. So for
> example
> a disk is a device
> which has device set to disk and type set to disk (according to
> VmDeviceCommonUtils.isDisk method).
>
> So my question is, if I have a custom properties for disk, will they be
> available for all disk
> devices (disk, cdrom, floppy, ...) or only for real disk? So should we
> support custom properties
> for all VmDeviceType enum value separately?
>
> Thanks for suggestions
>
> Martin
The reason for that difference is that we had types in the backend code only for managed
devices . (i.e. devoices that are known and handled by the backend)
Any other device as balloon etc. is considered as unmanaged device , that means that VDSM
tells us that it exists and therefore tell us its type as well...
I've looked at VDSM code, here are device type even more detailed (please
correct me if I'm wrong):
DEVICE TYPE
'disk' 'disk', 'cdrom', 'floppy'
'interface' 'bridge'
'video' 'cirrus', 'std', 'vmware', 'qxl',
'none'
'sound' 'ac97', 'pcspk', 'sb16', 'es1370',
'hda', 'ich6'
'controller' 'ide', 'fdc', 'scsi', 'sata',
'usb', 'ccid', 'virtio-serial'
'balloon' 'memballoon'
'channel' 'unix', 'spicevmc', 'virtio-serial'
'console' 'console'
'smartcard' 'smartcard'
'watchdog' 'watchdog'
So I suggest to refactor engine device type to match VDSM side and engine
will support device
custom properties to be set for these devices types:
'disk', 'interface', 'video', 'sound',
'controller', 'balloon', 'channel',
'console', 'smartcard', 'watchdog'
Is it ok?
Martin
_______________________________________________
Engine-devel mailing list
Engine-devel(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/engine-devel
3:31 a.m.
----- Original Message -----
From: "Eli Mesika" <emesika(a)redhat.com>
To: "Martin Perina" <mperina(a)redhat.com>
Cc: engine-devel(a)ovirt.org
Sent: Sunday, May 5, 2013 9:18:07 AM
Subject: Re: [Engine-devel] Device custom properties
----- Original Message -----
> From: "Martin Perina" <mperina(a)redhat.com>
> To: engine-devel(a)ovirt.org
> Sent: Saturday, May 4, 2013 8:13:44 AM
> Subject: Re: [Engine-devel] Device custom properties
>
>
>
> ----- Original Message -----
> > From: "Martin Perina" <mperina(a)redhat.com>
> > To: engine-devel(a)ovirt.org
> > Sent: Friday, May 3, 2013 11:06:05 AM
> > Subject: [Engine-devel] Device custom properties
> >
> > Hi,
> >
> > I'm currently trying to implement device custom properties infrastructure
> > in
> > ovirt-engine.
> > During discussion with Yair, we found out, that it's not clear, for what
> > type
> > of devices
> > custom properties should be available? In engine we have the VmDeviceType
> > enum which
> > contains following values:
> >
> > FLOPPY("floppy", "14"),
> > DISK("disk", "17"),
> > CDROM("cdrom", "15"),
> > INTERFACE("interface", "10"),
> > BRIDGE("bridge", "3"),
> > VIDEO("video", "20"),
> > USB("usb", "23"),
> > CONTROLLER("controller", "23"),
> > REDIR("redir", "23"),
> > SPICEVMC("spicevmc", "23"),
> > QXL("qxl"),
> > CIRRUS("cirrus"),
> > SOUND("sound"),
> > ICH6("ich6"),
> > AC97("ac97"),
> > MEMBALLOON("memballoon"),
> > SMARTCARD("smartcard"),
> > BALLOON("balloon"),
> > OTHER("other", "0"),
> > UNKNOWN("unknown", "-1");
> >
> > But VmDevice class has two String attributes device and type. So for
> > example
> > a disk is a device
> > which has device set to disk and type set to disk (according to
> > VmDeviceCommonUtils.isDisk method).
> >
> > So my question is, if I have a custom properties for disk, will they be
> > available for all disk
> > devices (disk, cdrom, floppy, ...) or only for real disk? So should we
> > support custom properties
> > for all VmDeviceType enum value separately?
> >
> > Thanks for suggestions
> >
> > Martin
The reason for that difference is that we had types in the backend code only
for managed devices . (i.e. devoices that are known and handled by the
backend)
Any other device as balloon etc. is considered as unmanaged device , that
means that VDSM tells us that it exists and therefore tell us its type as
well...
Ok, I understand this.
But there are also OTHER and UNKNOWN device types in backend, but these types doesn't
corresponds to ANY type in VDSM. I don't want to refactor VmDevice device and type
attributes
too much, so is it safe to expect that device attribute of VmDevice can only contain
one of VDSM device types ('disk', 'interface', 'video',
'sound', 'controller', 'balloon',
'channel', 'console', 'smartcard')? It's really important
question, because replacing
String type with enum would save a lot of code in device custom properties
implementation.
Martin
6:17 a.m.
----- Original Message -----
From: "Martin Perina" <mperina(a)redhat.com>
To: "Eli Mesika" <emesika(a)redhat.com>
Cc: engine-devel(a)ovirt.org
Sent: Thursday, May 9, 2013 10:31:07 AM
Subject: Re: [Engine-devel] Device custom properties
----- Original Message -----
> From: "Eli Mesika" <emesika(a)redhat.com>
> To: "Martin Perina" <mperina(a)redhat.com>
> Cc: engine-devel(a)ovirt.org
> Sent: Sunday, May 5, 2013 9:18:07 AM
> Subject: Re: [Engine-devel] Device custom properties
>
>
>
> ----- Original Message -----
> > From: "Martin Perina" <mperina(a)redhat.com>
> > To: engine-devel(a)ovirt.org
> > Sent: Saturday, May 4, 2013 8:13:44 AM
> > Subject: Re: [Engine-devel] Device custom properties
> >
> >
> >
> > ----- Original Message -----
> > > From: "Martin Perina" <mperina(a)redhat.com>
> > > To: engine-devel(a)ovirt.org
> > > Sent: Friday, May 3, 2013 11:06:05 AM
> > > Subject: [Engine-devel] Device custom properties
> > >
> > > Hi,
> > >
> > > I'm currently trying to implement device custom properties
> > > infrastructure
> > > in
> > > ovirt-engine.
> > > During discussion with Yair, we found out, that it's not clear, for
> > > what
> > > type
> > > of devices
> > > custom properties should be available? In engine we have the
> > > VmDeviceType
> > > enum which
> > > contains following values:
> > >
> > > FLOPPY("floppy", "14"),
> > > DISK("disk", "17"),
> > > CDROM("cdrom", "15"),
> > > INTERFACE("interface", "10"),
> > > BRIDGE("bridge", "3"),
> > > VIDEO("video", "20"),
> > > USB("usb", "23"),
> > > CONTROLLER("controller", "23"),
> > > REDIR("redir", "23"),
> > > SPICEVMC("spicevmc", "23"),
> > > QXL("qxl"),
> > > CIRRUS("cirrus"),
> > > SOUND("sound"),
> > > ICH6("ich6"),
> > > AC97("ac97"),
> > > MEMBALLOON("memballoon"),
> > > SMARTCARD("smartcard"),
> > > BALLOON("balloon"),
> > > OTHER("other", "0"),
> > > UNKNOWN("unknown", "-1");
> > >
> > > But VmDevice class has two String attributes device and type. So for
> > > example
> > > a disk is a device
> > > which has device set to disk and type set to disk (according to
> > > VmDeviceCommonUtils.isDisk method).
> > >
> > > So my question is, if I have a custom properties for disk, will they be
> > > available for all disk
> > > devices (disk, cdrom, floppy, ...) or only for real disk? So should we
> > > support custom properties
> > > for all VmDeviceType enum value separately?
> > >
> > > Thanks for suggestions
> > >
> > > Martin
>
> The reason for that difference is that we had types in the backend code
> only
> for managed devices . (i.e. devoices that are known and handled by the
> backend)
> Any other device as balloon etc. is considered as unmanaged device , that
> means that VDSM tells us that it exists and therefore tell us its type as
> well...
>
>
Ok, I understand this.
But there are also OTHER and UNKNOWN device types in backend, but these types
doesn't
corresponds to ANY type in VDSM. I don't want to refactor VmDevice device and
type attributes
too much, so is it safe to expect that device attribute of VmDevice can only
contain
one of VDSM device types ('disk', 'interface', 'video',
'sound',
'controller', 'balloon',
'channel', 'console', 'smartcard')? It's really important
question, because
replacing
String type with enum would save a lot of code in device custom properties
implementation.
Sorry, I wrote wrong attribute. Do you think it's safe to expect that type attribute
of VmDevice can only contain one of VDSM device types ('disk',
'interface', 'video', 'sound',
'controller', 'balloon', 'channel', 'console',
'smartcard')?
Martin
2:41 p.m.
----- Original Message -----
From: "Martin Perina" <mperina(a)redhat.com>
To: "Eli Mesika" <emesika(a)redhat.com>
Cc: engine-devel(a)ovirt.org
Sent: Thursday, May 9, 2013 2:17:58 PM
Subject: Re: [Engine-devel] Device custom properties
----- Original Message -----
> From: "Martin Perina" <mperina(a)redhat.com>
> To: "Eli Mesika" <emesika(a)redhat.com>
> Cc: engine-devel(a)ovirt.org
> Sent: Thursday, May 9, 2013 10:31:07 AM
> Subject: Re: [Engine-devel] Device custom properties
>
>
>
> ----- Original Message -----
> > From: "Eli Mesika" <emesika(a)redhat.com>
> > To: "Martin Perina" <mperina(a)redhat.com>
> > Cc: engine-devel(a)ovirt.org
> > Sent: Sunday, May 5, 2013 9:18:07 AM
> > Subject: Re: [Engine-devel] Device custom properties
> >
> >
> >
> > ----- Original Message -----
> > > From: "Martin Perina" <mperina(a)redhat.com>
> > > To: engine-devel(a)ovirt.org
> > > Sent: Saturday, May 4, 2013 8:13:44 AM
> > > Subject: Re: [Engine-devel] Device custom properties
> > >
> > >
> > >
> > > ----- Original Message -----
> > > > From: "Martin Perina" <mperina(a)redhat.com>
> > > > To: engine-devel(a)ovirt.org
> > > > Sent: Friday, May 3, 2013 11:06:05 AM
> > > > Subject: [Engine-devel] Device custom properties
> > > >
> > > > Hi,
> > > >
> > > > I'm currently trying to implement device custom properties
> > > > infrastructure
> > > > in
> > > > ovirt-engine.
> > > > During discussion with Yair, we found out, that it's not clear,
for
> > > > what
> > > > type
> > > > of devices
> > > > custom properties should be available? In engine we have the
> > > > VmDeviceType
> > > > enum which
> > > > contains following values:
> > > >
> > > > FLOPPY("floppy", "14"),
> > > > DISK("disk", "17"),
> > > > CDROM("cdrom", "15"),
> > > > INTERFACE("interface", "10"),
> > > > BRIDGE("bridge", "3"),
> > > > VIDEO("video", "20"),
> > > > USB("usb", "23"),
> > > > CONTROLLER("controller", "23"),
> > > > REDIR("redir", "23"),
> > > > SPICEVMC("spicevmc", "23"),
> > > > QXL("qxl"),
> > > > CIRRUS("cirrus"),
> > > > SOUND("sound"),
> > > > ICH6("ich6"),
> > > > AC97("ac97"),
> > > > MEMBALLOON("memballoon"),
> > > > SMARTCARD("smartcard"),
> > > > BALLOON("balloon"),
> > > > OTHER("other", "0"),
> > > > UNKNOWN("unknown", "-1");
> > > >
> > > > But VmDevice class has two String attributes device and type. So for
> > > > example
> > > > a disk is a device
> > > > which has device set to disk and type set to disk (according to
> > > > VmDeviceCommonUtils.isDisk method).
> > > >
> > > > So my question is, if I have a custom properties for disk, will they
> > > > be
> > > > available for all disk
> > > > devices (disk, cdrom, floppy, ...) or only for real disk? So should
> > > > we
> > > > support custom properties
> > > > for all VmDeviceType enum value separately?
> > > >
> > > > Thanks for suggestions
> > > >
> > > > Martin
> >
> > The reason for that difference is that we had types in the backend code
> > only
> > for managed devices . (i.e. devoices that are known and handled by the
> > backend)
> > Any other device as balloon etc. is considered as unmanaged device , that
> > means that VDSM tells us that it exists and therefore tell us its type as
> > well...
> >
> >
>
> Ok, I understand this.
>
> But there are also OTHER and UNKNOWN device types in backend, but these
> types
> doesn't
> corresponds to ANY type in VDSM. I don't want to refactor VmDevice device
> and
> type attributes
> too much, so is it safe to expect that device attribute of VmDevice can
> only
> contain
> one of VDSM device types ('disk', 'interface', 'video',
'sound',
> 'controller', 'balloon',
> 'channel', 'console', 'smartcard')? It's really
important question, because
> replacing
> String type with enum would save a lot of code in device custom properties
> implementation.
>
Sorry, I wrote wrong attribute. Do you think it's safe to expect that type
attribute
of VmDevice can only contain one of VDSM device types ('disk',
'interface',
'video', 'sound',
'controller', 'balloon', 'channel', 'console',
'smartcard')?
That sounds good to me.
I support this apporach.
Martin
_______________________________________________
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4245
days inactive
4251
days old
5 comments
3 participants
participants (3)
-
Eli Mesika -
Martin Perina -
Yair Zaslavsky