EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET Struct Reference


Data Fields

UINT64 Timeout
VOID * DataBuffer
VOID * SenseData
VOID * Cdb
UINT32 TransferLength
UINT8 CdbLength
UINT8 DataDirection
UINT8 HostAdapterStatus
UINT8 TargetStatus
UINT8 SenseDataLength

Field Documentation

A pointer to buffer that contains the Command Data Block to send to the SCSI device.

The length, in bytes, of the buffer Cdb. The standard values are 6, 10, 12, and 16, but other values are possible if a variable length CDB is used.

A pointer to the data buffer to transfer between the SCSI controller and the SCSI device. Must be aligned to the boundary specified in the IoAlign field of the EFI_SCSI_PASS_THRU_MODE structure.

The direction of the data transfer. 0 for reads, 1 for writes. A value of 2 is Reserved for Bi-Directional SCSI commands.

The status of the SCSI Host Controller that produces the SCSI bus where the SCSI device attached when the SCSI Request Packet was executed on the SCSI Controller.

A pointer to the sense data that was generated by the execution of the SCSI Request Packet.

On input, the length in bytes of the SenseData buffer. On output, the number of bytes written to the SenseData buffer.

The status returned by the SCSI device when the SCSI Request Packet was executed.

The timeout, in 100 ns units, to use for the execution of this SCSI Request Packet. A Timeout value of 0 means that this function will wait indefinitely for the SCSI Request Packet to execute. If Timeout is greater than zero, then this function will return EFI_TIMEOUT if the time required to execute the SCSI Request Packet is greater than Timeout.

On Input, the size, in bytes, of InDataBuffer. On output, the number of bytes transferred between the SCSI controller and the SCSI device.


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