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Programming Interface Information:
This information is NOT
intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only. |
IRBLK
Cross Reference (Contains links to field and bit definitions)
IRBLK Prolog
NAME : HCPIRBLK
DESCRIPTION: INTERRUPTION RESPONSE BLOCK MAPPING
DSECT : IRBLK
FUNCTION : PROVIDE SYMOLIC REFERENCES FOR THE FIELDS RETURNED
BY AN XA MACHINE IN RESPONSE TO A TSCH INSTRUCTION THAT
SETS CONDITION CODE ZERO.
LOCATED BY : N/A
CREATED BY : N/A
DELETED BY : N/A
IRBLK Control Block Content
IRBLK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure IRBLK INTERRUPTION RESPONSE BLOCK MAPPING 0000 0 Bitstring 12 IRBSCSW (0) EXTENDED STATUS CSW 0000 0 Signed 4 IRBWORD1 (0) IRB WORD-1 0000 0 Bitstring 1 IRBSKEY KEY, EXTENDED STATUS AND DEFERRED CC 1111 .... CSWKEY X'F0' KEY OF I/O OPERATION (0-15) .... 1... CSWSRENA X'08' SUSPEND-RESUME ENABLEMENT ORB only fields .... ..1. CSWMODCT X'02' Modification Control(ORB Word 1,Bit 6) .... ...1 CSWSYNCH X'01' Synchronize Control (ORB Word 1,Bit 7) IRB only fields .... .1.. CSWESTAT X'04' 1=EXTENDED STATUS, 0=TIME .... ..11 CSWDFCC X'03' DEFERRED CC EXTRACT MASK .... .... CSWCC0 X'00' DEFERRED CC CODE 0 .... ...1 CSWCC1 X'01' DEFERRED CC CODE 1 .... ..1. CSWCC2 X'02' DEFERRED CC CODE 2 .... ..11 CSWCC3 X'03' DEFERRED CC CODE 3 0001 1 Bitstring 1 IRBFPIZN CCW CONTROLS AND INITIAL RESPONSES 1111 1... CSWSUMRY X'F8' SUMMARY TEST FIELD 1... .... CSWFORMT X'80' FORMAT OF CCW .1.. .... CSWPREF X'40' UNLIMITED PREFETCH ALLOWED. ..1. .... CSWRESPN X'20' INITIAL STATUS RESPONSE PRESENTED ...1 .... CSWLMODE X'10' ADDRESS LIMIT IS IN EFFECT .... 1... CSWSUPSI X'08' SUPPRESS SUSPENDED INTERRUPTION .... .1.. CSWZCC X'04' CONFIRMED ZERO CONDITION CODE .... ..1. CSWELOG X'02' EXTENDED I/O LOGOUT STORED .... ...1 CSWPNOPR X'01' NOT-OPERATION PATH ENCOUNTERED 0002 2 Bitstring 1 IRBFCTL FUNCTION CONTROL BYTE 1... .... CSWQDIOA X'80' QDIO-Active (V) .1.. .... CSWSFCN X'40' START SUBCHANNEL FUNCTION ..1. .... CSWHFCN X'20' HALT SUBCHANNEL FUNCTION ...1 .... CSWCFCN X'10' CLEAR SUBCHANNEL FUNCTION .... 1... CSWRPND X'08' RESUME SUBCHANNEL PENDING .... .1.. CSWSPND X'04' START SUBCHANNEL PENDING .... ..1. CSWHPND X'02' HALT SUBCHANNEL PENDING .... ...1 CSWCPND X'01' CLEAR SUBCHANNEL PENDING 0003 3 Bitstring 1 IRBACTL ACTIVITY CONTROL BYTE 1... .... CSWSCACT X'80' SUBCHANNEL ACTIVE .1.. .... CSWDVACT X'40' DEVICE ACTIVE ..1. .... CSWSUSPN X'20' SUBCHANNEL SUSPENDED ...1 .... CSWALERT X'10' ALERT STATUS .... 1... CSWISTAT X'08' INTERMEDIATE STATUS .... .1.. CSWPSTAT X'04' PRIMARY STATUS .... ..1. CSWNSTAT X'02' SECONDARY STATUS .... ...1 CSWSTPND X'01' STATUS PENDING 0004 4 Signed 4 IRBCCWA ADDRESS OF CCW AT INTERRUPT (+8) 0008 8 Bitstring 4 IRBCSC (0) COMBINED DEVICE STATUS, SUBCHANNEL STATUS, AND RESIDUAL COUNT FIELDS 0008 8 Bitstring 1 IRBDVST DEVICE STATUS FLAGS 1... .... CSWATTN X'80' ATTENTION .1.. .... CSWSM X'40' STATUS MODIFIER ..1. .... CSWCUE X'20' CONTROL UNIT END ...1 .... CSWBUSY X'10' BUSY .... 1... CSWCE X'08' CHANNEL END .... .1.. CSWDE X'04' DEVICE END .... ..1. CSWUC X'02' UNIT CHECK .... ...1 CSWUE X'01' UNIT EXCEPTION .... 11.. CSWCEDE X'0C' CHANNEL END AND DEVICE END ..1. 11.. CSWCEDC X'2C' CHANNEL END,DEVICE END,AND CUE .1.1 .... CSWSMBSY X'50' CONTROL UNIT BUSY .111 .... CSWCBS X'70' CONTROL UNIT BUSY AND END 1... .1.. CSWDEA X'84' DEVICE END AND ATTENTION 0009 9 Bitstring 1 IRBSCST SUBCHANNEL STATUS FLAGS 1... .... CSWPCI X'80' PROGRAM CONTROLLED INTERRUPTION .1.. .... CSWIL X'40' INCORRECT LENGTH INDICATION ..1. .... CSWPRG X'20' CHANNEL PROGRAM CHECK ...1 .... CSWPROT X'10' STORAGE PROTECTION CHECK .... 1... CSWCDC X'08' CHANNEL DATA CHECK .... .1.. CSWCCC X'04' CHANNEL CONTROL CHECK .... ..1. CSWIFCC X'02' INTERFACE CONTROL CHECK .... ...1 CSWCHC X'01' CHANNEL CHAINING CHECK .... 111. CSWHCE X'0E' CDC+CCC+IFCC HARDWARE ERRORS ..11 ...1 CSWPCE X'31' PRG+CHC+PROT PROGRAM ERRORS 000A 10 Signed 2 IRBCNT UNEXPIRED COUNT IN CCW 000C 12 Signed 4 IRBXSTAT (0) EXTENDED STATUS/TIME WORD 000C 12 Bitstring 1 IRBECF CHANNEL PROGRAM ERROR CHECK FLAGS .1.. .... CSWKEYCK X'40' INVALID CBC ON STORAGE KEY ..1. .... CSWMBPCK X'20' ADDRESSING EXCEPTION ON MBI ...1 .... CSWMBDCK X'10' INVALID CBC ON MEASURE BLOCK .... 1... CSWMBACK X'08' ACCESS EXCEPTION OF MEASURE BLK .... .1.. CSWCCWCK X'04' INVALID CBC ON CCW FIELDS .... ..1. CSWIDACK X'02' INVALID CBC ON IDAL FIELDS .... ...1 CSWSALCK X'01' INVALID ADDRESS LIMIT SET 000D 13 Bitstring 1 IRBLPUM LAST-PATH-USED MASK 0000000D IRBCPID IRBLPUM *** TEMPORARY UNTIL CODE CHANGE *** 000E 14 Signed 2 IRBDCTI (0) DEVICE CONNECT TIME INTERVAL 000E 14 Bitstring 1 IRBFVF TERMINATION CODE VALIDATION BITS 1... .... CSWFVFAR X'80' Ancillary report bit in the ESW .1.. .... CSWFVFLP X'40' LAST-PATH-USED IS VALID ..1. .... CSWFVFTC X'20' TERMINATION CODE IS VALID ...1 .... CSWFVFSC X'10' SEQUENCE CODE IS VALID .... 1... CSWFVFDS X'08' DEVICE STATUS IS VALID .... .1.. CSWFVFCA X'04' CCW ADDRESS IS VALID .... ..11 CSWSACOD X'03' STORAGE ACCESS CODE: .... .... CSWSAUNK X'00' 00 - UNKNOWN TYPE .... ...1 CSWSARD X'01' 01 - READ .... ..1. CSWSAWRT X'02' 02 - WRITE .... ..11 CSWSARDB X'03' 03 - READ BACKWARDS .... ..1. CSWFVFCN X'02' S/370-ONLY: CHANNEL # VALID .... ...1 CSWFVFDN X'01' S/370-ONLY: DEVICE # VALID ...1 11.. CSWFVFCM CSWFVFSC+CSWFVFDS+CSWFVFCA common fields 000F 15 Bitstring 1 IRBTMSEQ TERMINATION,ALERT AND SEQUENCE CODES 11.. .... CSWTMCOD X'C0' TERMINATION CODE : .... .... CSWTMCID X'00' 00 - INTERFACE DISCONNECT .1.. .... CSWTMCST X'40' 01 - STOP, STACK, NORMAL TERM 1... .... CSWTMCSR X'80' 10 - SELECTIVE RESET 11.. .... CSWTMXXX X'C0' 11 - RESERVED ..1. .... CSWLCLAR X'20' Ancillary report bit in the limited channel logout area ...1 .... CSWSECER X'10' SECONDARY ERROR .... 1... CSWEALRT X'08' LOGOUT IS FROM I/O ERROR ALERT .... .111 CSWSQCOD X'07' SEQUENCE CODE : .... .... CSWSQXXX X'00' 000 - RESERVED .... ...1 CSWSQCOA X'01' 001 - COMMAND-OUT & ADDRESS-IN .... ..1. CSWSQCAC X'02' 010 - COMMAND ACCEPTED .... ..11 CSWSQDTR X'03' 011 - DATA TRANSFERRED .... .1.. CSWSQCNA X'04' 100 - COMMAND NOT ACCEPTED .... .1.1 CSWSQCAQ X'05' 101 - COMMAND ACCEPTED BUT DATA TRANSFER UNKNOWN .... .11. CSWSQYYY X'06' 110 - RESERVED .... .111 CSWSQZZZ X'07' 111 - RESERVED 0010 16 Signed 4 IRBERW (0) Extended Report Word for Format 0 ESW 0010 16 Bitstring 1 IRBERWB0 ERW Byte 0 .... 1... CSWPVRQ X'08' Path verification required .... ...1 CSWERWCS X'01' Sense data stored in extended control word 0011 17 Bitstring 1 IRBERWB1 ERW Byte 1 1... .... CSW2CCWV X'80' Secondary CCW address validity bit EQU X'40' Reserved for future IBM use ..11 1111 CSWCSCNT X'3F' Concurrent Sense Count extract mask 0012 18 Bitstring 1 * (2) Reserved for future hardware use 0014 20 Signed 4 * RESERVED FOR FUTURE HARDWARE USE 0018 24 Signed 4 * RESERVED FOR FUTURE HARDWARE USE 001C 28 Signed 4 IRB2DCCW Secondary CCW address 00000020 IRBLEN (*-IRBLK) LENGTH OF THE IRB WITHOUT XLOGOUT 0020 32 Bitstring 32 IRBXTLOG EXTENDED LOGOUT INFORMATION 00000040 IRBLENG (*-IRBLK) LENGTH OF ARCHITECTED IRB IN BYTES 00000008 IRBSIZE (IRBLENG+7)/8 SIZE IN BYTES FOR CP ALLOCATION 0000 0 Bitstring 1 IRBDKEY CHSC Subchannel CRQBK Storage Key 0001 1 Bitstring 1 * 0002 2 Bitstring 2 IRBDFASC (0) FCTL (BIT 17-19) ACTL (BIT 20-26) 0002 2 Bitstring 1 IRBDFCTL 0003 3 Bitstring 1 IRBDACTL 0004 4 Bitstring 4 IRBDCRQ Address of Communication Request BLK 0008 8 Bitstring 1 * 0009 9 Bitstring 1 IRBDSC CHSC Status Control 000A 10 Bitstring 2 *
IRBLK Storage Layout
*** IRBLK - INTERRUPTION RESPONSE BLOCK MAPPING * * +------+------+------+------+---------------------------+ * 0 |:SKEY |:FPIZN|:FCTL |:ACTL | IRBCCWA | * +------+------+------+------+------+------+------+------+ * 8 |:DVST |:SCST | IRBCNT |IRBECF|:LPUM |IRBFVF|:TMSEQ| * +------+------+-------------+------+------+------+------+ * 10 |:ERWB0|:ERWB1|/////////////|///////////////////////////| * +------+------+-------------+---------------------------+ * 18 |///////////////////////////| IRB2DCCW | * +---------------------------+---------------------------+ * 20 | | * = IRBXTLOG = * | | * +-------------------------------------------------------+ * 40 * *** IRBLK - INTERRUPTION RESPONSE BLOCK MAPPING *** Overlay for IRBSCSW in IRBLK * * +------+------+------+------+---------------------------+ * 0 |:DKEY |//////|:DFCTL|:DACTL| IRBDCRQ | * +------+------+------+------+---------------------------+ * 8 |//////|IRBDSC|/////////////| C * +------+------+-------------+ * *** Overlay for IRBSCSW in IRBLK
IRBLK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----CSWALERT 0003 10
CSWATTN 0008 80
CSWBUSY 0008 10
CSWCBS 0008 70
CSWCCC 0009 04
CSWCCWCK 000C 04
CSWCC0 0000 00
CSWCC1 0000 01
CSWCC2 0000 02
CSWCC3 0000 03
CSWCDC 0009 08
CSWCE 0008 08
CSWCEDC 0008 2C
CSWCEDE 0008 0C
CSWCFCN 0002 10
CSWCHC 0009 01
CSWCPND 0002 01
CSWCSCNT 0011 3F
CSWCUE 0008 20
CSWDE 0008 04
CSWDEA 0008 84
CSWDFCC 0000 03
CSWDVACT 0003 40
CSWEALRT 000F 08
CSWELOG 0001 02
CSWERWCS 0010 01
CSWESTAT 0000 04
CSWFORMT 0001 80
CSWFVFAR 000E 80
CSWFVFCA 000E 04
CSWFVFCM 000E 1C
CSWFVFCN 000E 02
CSWFVFDN 000E 01
CSWFVFDS 000E 08
CSWFVFLP 000E 40
CSWFVFSC 000E 10
CSWFVFTC 000E 20
CSWHCE 0009 0E
CSWHFCN 0002 20
CSWHPND 0002 02
CSWIDACK 000C 02
CSWIFCC 0009 02
CSWIL 0009 40
CSWISTAT 0003 08
CSWKEY 0000 F0
CSWKEYCK 000C 40
CSWLCLAR 000F 20
CSWLMODE 0001 10
CSWMBACK 000C 08
CSWMBDCK 000C 10
CSWMBPCK 000C 20
CSWMODCT 0000 02
CSWNSTAT 0003 02
CSWPCE 0009 31
CSWPCI 0009 80
CSWPNOPR 0001 01
CSWPREF 0001 40
CSWPRG 0009 20
CSWPROT 0009 10
CSWPSTAT 0003 04
CSWPVRQ 0010 08
CSWQDIOA 0002 80
CSWRESPN 0001 20
CSWRPND 0002 08
CSWSACOD 000E 03
CSWSALCK 000C 01
CSWSARD 000E 01
CSWSARDB 000E 03
CSWSAUNK 000E 00
CSWSAWRT 000E 02
CSWSCACT 0003 80
CSWSECER 000F 10
CSWSFCN 0002 40
CSWSM 0008 40
CSWSMBSY 0008 50
CSWSPND 0002 04
CSWSQCAC 000F 02
CSWSQCAQ 000F 05
CSWSQCNA 000F 04
CSWSQCOA 000F 01
CSWSQCOD 000F 07
CSWSQDTR 000F 03
CSWSQXXX 000F 00
CSWSQYYY 000F 06
CSWSQZZZ 000F 07
CSWSRENA 0000 08
CSWSTPND 0003 01
CSWSUMRY 0001 F8
CSWSUPSI 0001 08
CSWSUSPN 0003 20
CSWSYNCH 0000 01
CSWTMCID 000F 00
CSWTMCOD 000F C0
CSWTMCSR 000F 80
CSWTMCST 000F 40
CSWTMXXX 000F C0
CSWUC 0008 02
CSWUE 0008 01
CSWZCC 0001 04
CSW2CCWV 0011 80
IRBACTL 0003
IRBCCWA 0004
IRBCNT 000A
IRBCPID 000D 0000000D
IRBCSC 0008
IRBDACTL 0003
IRBDCRQ 0004
IRBDCTI 000E
IRBDFASC 0002
IRBDFCTL 0002
IRBDKEY 0000
IRBDSC 0009
IRBDVST 0008
IRBECF 000C
IRBERW 0010
IRBERWB0 0010
IRBERWB1 0011
IRBFCTL 0002
IRBFPIZN 0001
IRBFVF 000E
IRBLEN 001C 00000020
IRBLENG 0020 00000040
IRBLPUM 000D
IRBSCST 0009
IRBSCSW 0000
IRBSIZE 0020 00000008
IRBSKEY 0000
IRBTMSEQ 000F
IRBWORD1 0000
IRBXSTAT 000C
IRBXTLOG 0020
IRB2DCCW 001C
Last updated on 3 Aug 1999 at 12:06:56 EDT.
Copyright IBM Corporation, 1990, 1999