2.2.4.8 SVHDX_TUNNEL_SCSI_RESPONSE Structure
The SVHDX_TUNNEL_SCSI_RESPONSE packet is sent by the server in response to the operation RSVD_TUNNEL_SCSI_OPERATION.
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Length |
A |
SrbStatus |
ScsiStatus |
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CDBLength |
SenseInfoExLength |
Disposition |
Reserved |
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SrbFlags |
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DataTransferLength |
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SenseDataEx (variable) |
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DataBuffer (variable) |
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Length (2 bytes): Specifies the size, in bytes, of the SVHDX_TUNNEL_SCSI_RESPONSE structure excluding the DataBuffer field.
A - SenseInfoAutoGenerated (1 bit): A 1-bit field; when set to TRUE, indicates that sense data was returned by the virtual SCSI disk.
SrbStatus (7 bits): A 7-bit field indicating the status. This field MUST contain one of the values in section 2.2.5.
ScsiStatus (1 byte): An 8-bit field used to communicate the SCSI status that was returned by the target device.
CDBLength (1 byte): This field MUST be set to the CDBLength value received in the request and ignored on receipt.
SenseInfoExLength (1 byte): The length, in bytes, of the SenseDataEx field. This value MUST be less than or equal to RSVD_SCSI_SENSE_BUFFER_SIZE.
Disposition (1 byte): This field indicates the SCSI CDB transfer type and MUST be set to one of the following values:
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Value
Meaning
0x00
Indicates that data is being requested from the virtual SCSI disk
0x01
Indicates that data is being sent to the virtual SCSI disk
0x02
Indicates that data is neither being requested nor sent
Reserved (1 byte): This field MUST be set to zero, and MUST be ignored on receipt.
SrbFlags (4 bytes): Special flags to indicate options of the SCSI response. This field MUST contain zero or more of the following values:
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Name
Meaning
SRB_FLAGS_DATA_IN
0x00000040
The client sent data to the server.
SRB_FLAGS_DATA_OUT
0x00000080
The server is sending data to the client.
DataTransferLength (4 bytes): The length, in bytes, of the additional data placed in the DataBuffer field.
SenseDataEx (variable): A buffer that contains the sense data.
DataBuffer (variable): A variable-length buffer that contains the additional buffer, as described by the DataTransferLength field.