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Re: [virt-tools-list] [virt-manager][Patch v2]Add virtio-scsi disk bus option



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> -----Original Message-----
> From: Chen Hanxiao [mailto:chenhanxiao cn fujitsu com]
> Sent: Friday, November 16, 2012 5:35 PM
> To: virt-tools-list redhat com
> Cc: chenhanxiao cn fujitsu com
> Subject: [virt-tools-list][virt-manager][Patch v2]Add virtio-scsi disk bus
option
> 
> From: ChenHanxiao <chenhanxiao cn fujitsu com>
> 
> This patch will add virtio-scsi bus option on "Add New Virtual Hardware"
GUI
> page. It will support users to add a virtual disk using SCSI bus with a
controller
> model virtio-scsi.
> If there is no SCSI controller existed, a new SCSI controller by model
'virtio-scsi'
> will be added automatically.
> 
> Signed-off-by: ChenHanxiao <chenhanxiao cn fujitsu com>
> ---
>  src/virtManager/addhardware.py |   38
> ++++++++++++++++++++++++++++++++++++++
>  src/virtManager/details.py     |    6 +++++-
>  2 files changed, 43 insertions(+), 1 deletions(-)
> 
> diff --git a/src/virtManager/addhardware.py
> b/src/virtManager/addhardware.py index 4d894eb..76797c9 100644
> --- a/src/virtManager/addhardware.py
> +++ b/src/virtManager/addhardware.py
> @@ -34,6 +34,7 @@ import virtManager.uihelpers as uihelpers  from
> virtManager.asyncjob import vmmAsyncJob  from virtManager.storagebrowse
> import vmmStorageBrowser  from virtManager.baseclass import
> vmmGObjectUI
> +from virtinst.VirtualController import VirtualControllerSCSI
> 
>  PAGE_ERROR = 0
>  PAGE_DISK = 1
> @@ -539,6 +540,8 @@ class vmmAddHardware(vmmGObjectUI):
>          if self.vm.get_hv_type() == "kvm":
>              add_dev("sata", virtinst.VirtualDisk.DEVICE_DISK, "SATA
disk")
>              add_dev("virtio", virtinst.VirtualDisk.DEVICE_DISK, "Virtio
disk")
> +            add_dev("virtio-scsi", virtinst.VirtualDisk.DEVICE_DISK,
> +                "Virtio-SCSI disk")
>          if self.conn.is_xen():
>              add_dev("xen", virtinst.VirtualDisk.DEVICE_DISK, "Virtual
disk")
> 
> @@ -1151,10 +1154,16 @@ class vmmAddHardware(vmmGObjectUI):
> 
>          self._dev.get_xml_config()
>          logging.debug("Adding device:\n" + self._dev.get_xml_config())
> +        if self.has_controller():
> +            if self._controller is not None:
> +                logging.debug("Adding controller:\n"
> +                            + self._controller.get_xml_config())
> 
>          # Hotplug device
>          attach_err = False
>          try:
> +            if self.has_controller() and self._controller is not None:
> +                self.vm.attach_device(self._controller)
>              self.vm.attach_device(self._dev)
>          except Exception, e:
>              logging.debug("Device could not be hotplugged: %s", str(e))
> @@ -1176,6 +1185,13 @@ class vmmAddHardware(vmmGObjectUI):
>                  return (False, None)
> 
>          # Alter persistent config
> +        if self.has_controller() and self._controller is not None:
> +            try:
> +                self.vm.add_device(self._controller)
> +            except Excpetion, e:
> +                self.err.show_err(_("Error adding device: %s" % str(e)))
> +                return (True, None)
> +
>          try:
>              self.vm.add_device(self._dev)
>          except Exception, e:
> @@ -1184,6 +1200,14 @@ class vmmAddHardware(vmmGObjectUI):
> 
>          return (False, None)
> 
> +    #check whether device has attribute '_controller'
> +    def has_controller(self):
> +        try:
> +            self._controller
> +        except AttributeError:
> +            return False
> +        else:
> +            return True
> 
>      ###########################
>      # Page validation methods #
> @@ -1222,6 +1246,10 @@ class vmmAddHardware(vmmGObjectUI):
>          bus, device = self.get_config_disk_target()
>          cache = self.get_config_disk_cache()
>          fmt = self.get_config_disk_format()
> +        model = None
> +        if bus == "virtio-scsi":
> +           bus = "scsi"
> +           model = "virtio-scsi"
> 
>          # Make sure default pool is running
>          if self.is_default_storage():
> @@ -1271,6 +1299,7 @@ class vmmAddHardware(vmmGObjectUI):
>                                          device=device,
>                                          bus=bus,
>                                          driverCache=cache,
> +                                        model=model,
>                                          format=fmt)
> 
>              if not fmt:
> @@ -1316,6 +1345,15 @@ class vmmAddHardware(vmmGObjectUI):
>          uihelpers.check_path_search_for_qemu(self.topwin,
>                                               self.conn, disk.path)
> 
> +        if disk.model == "virtio-scsi":
> +            controllers = self.vm.get_controller_devices()
> +            controller = VirtualControllerSCSI(conn = self.conn.vmm)
> +            controller.set_model(disk.model)
> +            self._controller = controller
> +            for d in controllers:
> +                if disk.model == d.model:
> +                   self._controller = None
> +
>          self._dev = disk
>          return True
> 
> diff --git a/src/virtManager/details.py b/src/virtManager/details.py index
> d20e748..0e86648 100644
> --- a/src/virtManager/details.py
> +++ b/src/virtManager/details.py
> @@ -2219,7 +2219,11 @@ class vmmDetails(vmmGObjectUI):
>              if bus == "spapr-vscsi":
>                  bus = "scsi"
>                  addr = "spapr-vio"
> -            add_define(self.vm.define_disk_bus, dev_id_info, bus, addr)
> +            if bus == "virtio-scsi":
> +                bus = "scsi"
> +                model = "virtio-scsi"
> +            add_define(self.vm.define_disk_bus, dev_id_info, bus,
> +                addr, model)
> 
>          return self._change_config_helper(df, da, hf, ha)
> 
> --
> 1.7.1




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