CCHREC

Prolog  

Control Block Contents  
   CCHREC DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

CCHREC Prolog

 NAME       : CCHREC
 DESCRIPTION: VM/XA MAPPING OF THE S/370 CHANNEL
              CHECK RECORD
 DSECT      : CCHREC
 FUNCTION   : MAPS OUT THE S/370 CHANNEL CHECK RECORD
              FOR CP ERROR RECORDING MODULES.
 LOCATED BY : N/A.
 CREATED BY : S/370 or MVS GUEST.
 DELETED BY : HCPIOE AFTER HCPREC HAS COPIED IT INTO
              A GSDBK.
 COMMENTS   : VM/XA NEED ONLY TO BE ABLE TO REFERENCE THE
              AR BIT IN THIS RECORD FOR RECORDING PURPOSES.
              THUS, THE MAPPING WILL INCLUDE ONLY THOSE
              FIELDS NECESSARY.

CCHREC Control Block Content

CCHREC DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      CCHREC         VM/XA MAPPING OF THE S/370
                                        CHANNEL
0000    0 Bitstring    1 * (40)         Not needed
0028   40 Bitstring    1 CCHECF         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
0029   41 Bitstring    1 CCHSOURC       Source of error
002A   42 Bitstring    1 CCHFVF         Field validity 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
002B   43 Bitstring    1 CCHTMSEQ       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
          0000002C       CCHLEN         *-CCHREC LENGTH OF CCHREC
          00000006       CCHSIZE        (*-CCHREC+7)/8 CCHREC SIZE IN
                                        DOUBLE WORDS

CCHREC Storage Layout

          
*** CCHREC - VM/XA MAPPING OF THE S/370 CHANNEL
*
*     +-------------------------------------------------------+
*   0 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +------+------+------+------+---------------------------+
*  28 |CCHECF|:SOURC|CCHFVF|:TMSEQ| 2C
*     +------+------+------+------+
*
*** CCHREC - VM/XA MAPPING OF THE S/370 CHANNEL

CCHREC Cross Reference

Symbol         Dspl Value
-------------- ---- -----
CCHECF         0028
CCHFVF         002A
CCHLEN         002B 0000002C
CCHSIZE        002B 00000006
CCHSOURC       0029
CCHTMSEQ       002B
CSWCCWCK       0028 04
CSWEALRT       002B 08
CSWFVFAR       002A 80
CSWFVFCA       002A 04
CSWFVFCM       002A 1C
CSWFVFCN       002A 02
CSWFVFDN       002A 01
CSWFVFDS       002A 08
CSWFVFLP       002A 40
CSWFVFSC       002A 10
CSWFVFTC       002A 20
CSWIDACK       0028 02
CSWKEYCK       0028 40
CSWLCLAR       002B 20
CSWMBACK       0028 08
CSWMBDCK       0028 10
CSWMBPCK       0028 20
CSWSACOD       002A 03
CSWSALCK       0028 01
CSWSARD        002A 01
CSWSARDB       002A 03
CSWSAUNK       002A 00
CSWSAWRT       002A 02
CSWSECER       002B 10
CSWSQCAC       002B 02
CSWSQCAQ       002B 05
CSWSQCNA       002B 04
CSWSQCOA       002B 01
CSWSQCOD       002B 07
CSWSQDTR       002B 03
CSWSQXXX       002B 00
CSWSQYYY       002B 06
CSWSQZZZ       002B 07
CSWTMCID       002B 00
CSWTMCOD       002B C0
CSWTMCSR       002B 80
CSWTMCST       002B 40
CSWTMXXX       002B C0