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Re: [libvirt] [PATCH v3] conf: Generate address for scsi host device automatically

On 05/31/2013 04:09 AM, Osier Yang wrote:
> With unknown good reasons, the attribute "bus" of scsi device
> address is always set to 0, same for attribute "target". (See
> virDomainDiskDefAssignAddress).
> Though we might need to change the algorithm to honor "bus"
> and "target" too, that's a different issue. The address generator
> for scsi host device in this patch just follows the unknown
> good reasons, only considering the "controller" and "unit".
> It walks through all scsi controllers and their units, to see
> if the address $controller:0:0:$unit can be used (if not used
> by any disk or scsi host device yet), if found one, it sits on
> it, otherwise, it creates a new controller (actually the controller
> is implicitly created by someone else), and sits on
> $new_controller:0:0:0 instead.


>  src/conf/domain_conf.c                             | 202 ++++++++++++++++++---
>  .../qemuxml2argv-hostdev-scsi-autogen-address.xml  |  95 ++++++++++
>  ...qemuxml2xmlout-hostdev-scsi-autogen-address.xml | 106 +++++++++++
>  tests/qemuxml2xmltest.c                            |   2 +
>  4 files changed, 375 insertions(+), 30 deletions(-)
>  create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-hostdev-scsi-autogen-address.xml
>  create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-hostdev-scsi-autogen-address.xml

Relatively big to be pushing this late after freeze, but it can be
argued that this is a bug fix and worth including in 1.0.6.

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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