Programming Interface Information:
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TCCBK
Control Block Contents
TCCBK DSECT
Cross Reference (Contains links to field and bit definitions)
TCCBK Prolog
Description: FCX Transport Command Control Block DSECT : TCCBK Function : Provide symbolic reference to the fields of a Transport Command Control Block used by Fibre Channel Extensions (FCX) Located by : N/A Created by : N/A Delete By - N/A
TCCBK Control Block Content
TCCBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure TCCBK FCX Transport Command Control Block 0000 0 Bitstring 16 TCAH (0) Transport Command Area Header 0000 0 Bitstring 1 TCAFMT Format 0000007F TCAFMT7F X'7F' TCAFMT7F Format 7F 0001 1 Bitstring 3 TCAHW0RS Reserved for IBM use 0004 4 Bitstring 3 TCAHW1RS Reserved for IBM use 0007 7 Bitstring 1 TCALEN TCA byte Length (20-252) Must be multiple of 4 0008 8 Signed 2 TCASAC Service Action Code (unsigned) 00001FFE TCA1FFE X'1FFE' TCA1FFE SAC 1FFE 00001FFF TCA1FFF X'1FFF' TCA1FFF SAC 1FFF 000A 10 Bitstring 1 TCAHW2RS Reserved for IBM use 000B 11 Bitstring 1 TCAPRI Priority (0-255) 000C 12 Bitstring 4 TCAHW3RS Reserved for IBM use 00000010 TCAHBSZ (*-TCAH) TCAH byte size *******************************- * Transport Command Area *******************************- 0010 16 Bitstring 1 TCADCW (0) 1st DCW in variable length Transport Command Area The TCA Trailer is a fixed length data area located at the end of the variable length Transport Command Area.
TCCBK Storage Layout
*** TCCBK - FCX Transport Command Control Block * * +------+--------------------+--------------------+------+ * 0 |TCAFMT| TCAHW0RS | TCAHW1RS |TCALEN| * +------+------+------+------+--------------------+------+ * 8 | TCASAC |:HW2RS|TCAPRI| TCAHW3RS | * +-------------+------+------+---------------------------+ * *** TCCBK - FCX Transport Command Control Block
TCCBK Cross Reference
Symbol Dspl Value -------------- ---- ----- TCADCW 0010 TCAFMT 0000 TCAFMT7F 0000 0000007F TCAH 0000 TCAHBSZ 000C 00000010 TCAHW0RS 0001 TCAHW1RS 0004 TCAHW2RS 000A TCAHW3RS 000C TCALEN 0007 TCAPRI 000B TCASAC 0008 TCA1FFE 0008 00001FFE TCA1FFF 0008 00001FFF
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