Re: [Xen-devel] [RFC][PATCH] Enhance XenAPI for pvSCSI

[Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>]

Hi Yosuke,

My mail seems to have crossed your mail.  Let me think a little.

Best regards,
 Kan

Mon, 08 Sep 2008 14:03:27 +0900, Masaki Kanno wrote:

>Hi Yosuke,
>
>Thanks for your comment.
>
>As Kamada said, the pvSCSI driver emulates some SCSI commands, 
>the pvSCSI driver does not always pass through SCSI commands. 
>So I hesitate to call pvSCSI "direct". 
>
>Best regards,
> Kan
>
>Fri, 05 Sep 2008 17:52:42 +0900, Yosuke Iwamatsu wrote:
>
>>Hi,
>>
>>Masaki Kanno wrote:
>>> Hi,
>>> 
>>> I would like to enhance XenAPI for pvSCSI. 
>>> At the beginning, I updated only the document of XenAPI.  I'm going 
>>> to implement XenAPI of pvSCSI along the document.  Could you comment?
>>> 
>>> The following classes and RPCs are added by the enhancement. 
>>>  Classes:
>>>   - VSCSI class
>>>      This is a class for virtual SCSI devices.
>>
>>It's nice to keep xen-api updated with new features :-)
>>One thing I want to point out is about the class name.
>>I think 'DSCSI' (direct scsi) is appropriate rather than 'VSCSI',
>>because pvSCSI driver doesn't really provide virtual scsi luns but
>>passes through scsi commands to real scsi luns, as far as I understand.
>>
>>Regards,
>>-- Yosuke Iwamatsu
>>
>>>   - PSCSI class
>>>      This is a class for physical SCSI devices.
>>> 
>>>  RPCs:
>>>   - VSCSI class
>>>    -- get_all
>>>        A list of all VSCSIs known to the system is gotten.
>>>    -- get_uuid
>>>        An UUID of the VSCSI is gotten.
>>>    -- get_VM
>>>        A VM ref of the VSCSI is gotten.
>>>    -- get_PSCSI
>>>        A PSCSI ref of the VSCSI is gotten.
>>>    -- get_virtual_host
>>>        A virtual host number of the VSCSI is gotten.
>>>    -- get_virtual_channel
>>>        A virtual channel number of the VSCSI is gotten.
>>>    -- get_virtual_target
>>>        A virtual target number of the VSCSI is gotten.
>>>    -- get_virtual_lun
>>>        A virtual logical unit number of the VSCSI is gotten.
>>>    -- get_virtual_HCTL
>>>        A virtual HCTL (string of "<host>:<channel>:<target>:<lun>") 
>>>        of the VSCSI is gotten.
>>>    -- create
>>>        A new VSCSI instance is created.
>>>    -- destroy
>>>        The VSCSI instance is destroyed.
>>>    -- get_by_uuid
>>>        A VSCSI ref of the UUID is gotten.
>>>    -- get_record
>>>        A VSCSI record of the VSCSI is gotten.
>>> 
>>>   - PSCSI class
>>>    -- get_all
>>>        A list of all PSCSIs known to the system is gotten.
>>>    -- get_uuid
>>>        An UUID of the PSCSI is gotten.
>>>    -- get_host
>>>        A host ref of the PSCSI is gotten.
>>>    -- get_physical_host
>>>        A physical host number of the PSCSI is gotten.
>>>    -- get_physical_channel
>>>        A physical channel number of the PSCSI is gotten.
>>>    -- get_physical_target
>>>        A physical target number of the PSCSI is gotten.
>>>    -- get_physical_lun
>>>        A physical logical unit number of the PSCSI is gotten.
>>>    -- get_physical_HCTL
>>>        A physical HCTL (string of "<host>:<channel>:<target>:<lun>") 
>>>        of the PSCSI is gotten.
>>>    -- get_vendor_name
>>>        A vendor name of the PSCSI is gotten.
>>>    -- get_model
>>>        A model name of the PSCSI is gotten.
>>>    -- get_type_id
>>>        An ID of device types of the PSCSI is gotten. (If disk, the ID 
>>>        is 0.  If tape, the ID is 1.)
>>>    -- get_type
>>>        A device type string of the PSCSI is gotten.
>>>    -- get_sg_name
>>>        A SCSI generic (sg) device name of the PSCSI is gotten.
>>>    -- get_revision
>>>        A revision string of the PSCSI is gotten.
>>>    -- get_scsi_id
>>>        A SCSI ID string of the PSCSI is gotten. The string is a result 
>>>        of 'scsi_id -gu -s'.
>>>    -- get_scsi_level
>>>        A SCSI level of the PSCSI is gotten.
>>>    -- get_by_uuid
>>>        A PSCSI ref of the UUID is gotten.
>>>    -- get_record
>>>        A PSCSI record of the PSCSI is gotten.
>>> 
>>>   - VM class
>>>    -- get_VSCSIs
>>>        VSCSI refs of the VM are gotten.
>>> 
>>>   - host class
>>>    -- get_PSCSIs
>>>        PSCSI refs of the host are gotten.
>>> 
>>> 
>>> Signed-off-by: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>
>>> 
>>> Best regards,
>>>  Kan
>>> 
>>> 
>>> ------------------------------------------------------------------------
>>> 
>>> _______________________________________________
>>> Xen-devel mailing list
>>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>>> http://lists.xensource.com/xen-devel
>>
>>
>>
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>
>
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