User`s manual

siop_key Error Codes

SBCSCSI/D1 D-5

SI_ABRTTAG (0x05)

This status is returned only for target mode commands outstanding to the

Firmware. It indicates that a SCSI abort tag message has been received by the

Firmware in target mode for the specified logical unit. If the target task

supports tagged queuing, it should abort only the current I/O.

SI_CLEARQ (0x06)

This status is returned only for target mode commands outstanding to the

Firmware. It indicates that a SCSI clear queue message has been received by

the Firmware in target mode for the specified logical unit. If the target task

supports tagged queuing, it should abort the current I/O and all queued I/O.

SI_DATAOV (0x07)

This status is received for initiator mode commands to indicate a data

overflow to the target in a DATA-OUT phase or to the SIOP in DATA-IN

phase. A data overflow is defined to occur if the user supplied byte count is

exhausted yet the target device remains in the DATA-IN or DATA-OUT

phase. For the DATA-IN phase the SIOP reads the remaining data from the

target device into a bit bucket before terminating the command. For the

DATA-OUT phase the SIOP writes the data byte 0x0E to the target device for

all requested bytes until the target terminates the DATA-IN phase.

A possible source of this error at the siop_cmd() level may be that the byte count

specified for the Firmware is less than the byte count determined by the target.

SI_DATAUR (0x08)

This status is received for initiator mode commands to indicate a data

underrun to the target in a DATA-OUT phase or to the SIOP in DATA-IN

phase. A data underrun is defined as a condition where the target terminates

the current data transfer yet the user supplied byte count has not been

exhausted.

A possible source of this error at the siop_cmd() level may be that the byte count

specified for the Firmware is greater than the byte count determined by the

target. Additionally, this error is returned if the user expects to go to a data

phase and the target returns a CHECK or BUSY status without going to the

data phase.