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
>>
>>
>> ------------------------------------------------------------------------
>>
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>> Xen-devel@xxxxxxxxxxxxxxxxxxx
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>
>
>
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