OOSQ entry for HPR out of sequence queue sequence numbers
- Entry:
- OOSQ
- VIT option:
- HPR
- Event:
- Out of sequence queue sequence numbers
- VIT processing module:
- ISTITCHP
This trace record shows the HPR sequence numbers in all the DAPTRs on the HPR out of sequence queue. Each sequence number pair represents the sequence numbers that have been received and queued. The first gap is between the LAST BYTE RCVD (see RTP entry for RTP PAB dispatch) and the begin sequence number of the first sequence number pair. Additional gaps exist between the end sequence number of one pair and the begin sequence number of the next pair. If there are more than 2 gaps, this record is followed by as many OOS2 records as required to show all the sequence numbers on the RPNCB out of sequence queue.
The OOSQ record is written at the start of an RTP PAB
dispatch when at least one DAPTR is on the out of sequence queue.
OOSQ is also written at the end of an RTP PAB dispatch when at least
one of the DAPTRs on the out of sequence queue has been altered during
the dispatch.
- Byte (hex)
- Contents
- 00–03
- Record ID: C"OOSQ"
- 04
- ID is the primary address space ID (ASID). This field is 0 if the ASID is greater than X'FF'.
- 05
- 0
- 06
- DAP_Flags for sequence number pair 1
- 07
- DAP_Flags for sequence number pair 2 (zeros if only a single pair exists)
- 08–0F
- First sequence number pair
- Word 1 Begin Sequence number
- Word 2 End Sequence number
- 10–17
- Second sequence number pair (zeros if only a single pair exists)
- Word 1 Begin Sequence number
- Word 2 End Sequence number
- 18–1B
- RPNCB address
- 1C–1F
- Request parameter header (RPH) address