Re: [PATCH 0/8 v2] Glue domain and storage

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On 04/05/2013 12:30 PM, Osier Yang wrote:
> Like 7/8, 8/8, 9/8, there must be many places which also should be
> modified to not prevent the new volume type disk out of the door,
> but it's hard to find them out at once, disk related stuffs are always
> hairy. Anyway, it doesn't affect to let the basic go in first, because
> they are all additions, which are unlikely to introduce regressions.
> so please give reviewing.  Thanks.

Better to find them now though, right!  Seems you could use cscope to
search on uses of VIR_DOMAIN_DISK_TYPE_BLOCK and others to ensure you
cover as many cases as possible.

John
> 
> On 05/04/13 03:37, Osier Yang wrote:
>> This is the 4th part to implement NPIV migration support [1].
>>
>> Part 1 and part 2 are pushed.
>>
>> Part 3 (v3: pending for review):
>>    https://www.redhat.com/archives/libvir-list/2013-March/msg01440.html
>>
>> ======
>>
>> This introduces new XMLs to specify the disk source with storage like
>>
>>    <disk type='volume' device='disk'>
>>      <driver name='qemu' type='raw' cache='none'/>
>>      <source pool="$pool_name" volume='$vol_name'/>
>>        <seclabel relabel='no'/>
>>      </source>
>>      <target dev='vdb' bus='virtio'/>
>>    </disk>
>>
>> And before domain starting, and disk attaching/updating, the source
>> represented
>> by storage is translated into the real underlying storage volume.
>>
>> Future work:
>>    * Support network volume
>>    * Support disk backing chain?
>>
>> v1 - v2:
>>    * Invoke storage APIs to translate the source directly in qemu driver
>>    * 1/8 in v1 is pushed.
>>    * 2/8 in v1 is splitted (the code refactoring now is a standalone
>> patch)
>>    * Support shared disk for volume type disk
>>    * Support sgio setting for volume type disk
>>    * No network volume support in v2
>>    RFC - v1:
>>    * The XMLs are more simpler - only using pool name and volume
>>      name to specify disk source.
>>    * Support network pool (rbd, and sheepdog)
>>    * Support startupPolicy for volume type disk
>>    * Support seclabels for volume type disk
>>    * Fix bugs on disk source formating
>>
>> Osier Yang (8):
>>    conf: New helper virDomainDiskSourceDefFormat to format the disk
>>      source
>>    Introduce new XMLs to specify disk source using libvirt storage
>>    qemu: Translate the pool disk source when building drive string
>>    Support startupPolicy for 'volume' disk
>>    Support seclabels for volume type disk
>>    qemu: Translate the pool disk source earlier
>>    qemu: Support shareable volume type disk
>>    qemu: Support sgio setting for volume type disk
>>
>>   docs/formatdomain.html.in                          |  28 ++-
>>   docs/schemas/domaincommon.rng                      |  24 ++
>>   src/conf/domain_conf.c                             | 274
>> ++++++++++++++-------
>>   src/conf/domain_conf.h                             |  10 +
>>   src/qemu/qemu_command.c                            |  32 +++
>>   src/qemu/qemu_command.h                            |   1 -
>>   src/qemu/qemu_conf.c                               |  68 ++++-
>>   src/qemu/qemu_conf.h                               |   3 +
>>   src/qemu/qemu_domain.c                             |   4 +-
>>   src/qemu/qemu_driver.c                             |  16 +-
>>   src/qemu/qemu_process.c                            |  14 +-
>>   .../qemuxml2argv-disk-source-pool.xml              |  37 +++
>>   tests/qemuxml2xmltest.c                            |   1 +
>>   13 files changed, 406 insertions(+), 106 deletions(-)
>>   create mode 100644
>> tests/qemuxml2argvdata/qemuxml2argv-disk-source-pool.xml
>>
> 
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