KBRBK | Back to Index page

| Prolog Control Block Contents KBRBK DSECT Storage Layout Cross Reference (Contains links to field and bit definitions) |
Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

KBRBK Prolog | Top of page

     NAME       : HCPKBRBK
     DESCRIPTION: DSECT and EQUATES for z/VM ISFC Synchronization
                  services.
     DSECT      : KBRBK
     FUNCTION   : z/VM ISFC Sync Services Mappings
     REFERENCES : None.
     COMPATIBILITY AND MIGRATION CONCERNS : None.
     RELOCATION CONSIDERATIONS : None
     NOTES      : None.

KBRBK Control Block Content | Top of page

     KBRBK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      KBRBK          DSECT and EQUATES for z/VM ISFC Synchronization
    0000    0 Dbl-Word     8 KBRSTART (0)   KBRBK Message Start
    0000    0 Signed       4 KBRCAP         Node capabilities
    0004    4 Bitstring    1 KBRMTYPE       Message type
              00000001       KBRREQST       1 KBRREQST - Sync request
              00000002       KBRRESPN       2 KBRRESPN - Sync response
    0005    5 Bitstring    2 KBREYE         "KB" eye catcher
    0007    7 Bitstring    1 *              Reserved
    0008    8 Character    8 KBRORNOD       Originator Node
    0010   16 Character    8 KBRRSNOD       Responding Node
    0018   24 Character    8 KBRNBNOD       Neighbor Node
    0020   32 Dbl-Word     8 KBRMSG (0)
              MBHPROT = MBHSOCK_NODESY    Node Sync request/response
    0020   32 Dbl-Word     8 KBRSYNRQ       Node Sync Request Value
    0028   40 Signed       2 KBRHOPS        Node Hop Count
    002A   42 Bitstring    6 *              Reserved
    0030   48 Dbl-Word     8 KBRSYNST       Node Sync Start TOD
    0038   56 Dbl-Word     8 KBRTODST       Response: TOD IPL
              MBHPROT = MBHSOCK_TIMESY    Time Sync request/response
    0020   32 Dbl-Word     8 KBRSYTQD       Request Departure
    0028   40 Dbl-Word     8 KBRSYTQA       Request Arrival
    0030   48 Dbl-Word     8 KBRSYTRD       Response Departure
    0038   56 Dbl-Word     8 KBRSYTRP       Responder's view of offset
              MBHPROT = MBHSOCK_LINK      Link check message
    0020   32 Dbl-Word     8 KBRLKTOD       TOD for link check
              MBHPROT = MBHSOCK_LATE      Late node sync response msg
    0020   32 Dbl-Word     8 KBRLTSYN       Node sync value
              00000040       KBRSIZE        *-KBRBK
              00000008       KBRSIZD        (*-KBRBK+7)/8

KBRBK Storage Layout | Top of page

    *** KBRBK - DSECT and EQUATES for z/VM ISFC Synchronization
    *
    *     +---------------------------+------+-------------+------+
    *   0 |          KBRCAP           |:MTYPE|   KBREYE    |//////|
    *     +---------------------------+------+-------------+------+
    *   8 |                       KBRORNOD                        |
    *     +-------------------------------------------------------+
    *  10 |                       KBRRSNOD                        |
    *     +-------------------------------------------------------+
    *  18 |                       KBRNBNOD                        |
    *     +-------------------------------------------------------+
    *
    *** KBRBK - DSECT and EQUATES for z/VM ISFC Synchronization

    *** Overlay for KBRMSG in KBRBK
    *
    *     +-------------------------------------------------------+
    *  20 |                       KBRSYNRQ                        |
    *     +-------------+-----------------------------------------+
    *  28 |  KBRHOPS    |/////////////////////////////////////////|
    *     +-------------+-----------------------------------------+
    *  30 |                       KBRSYNST                        |
    *     +-------------------------------------------------------+
    *  38 |                       KBRTODST                        |
    *     +-------------------------------------------------------+
    *  40
    *
    *** Overlay for KBRMSG in KBRBK

    *** Overlay for KBRMSG in KBRBK
    *
    *     +-------------------------------------------------------+
    *  20 |                       KBRSYTQD                        |
    *     +-------------------------------------------------------+
    *  28 |                       KBRSYTQA                        |
    *     +-------------------------------------------------------+
    *  30 |                       KBRSYTRD                        |
    *     +-------------------------------------------------------+
    *  38 |                       KBRSYTRP                        |
    *     +-------------------------------------------------------+
    *  40
    *
    *** Overlay for KBRMSG in KBRBK

    *** Overlay for KBRMSG in KBRBK
    *
    *     +-------------------------------------------------------+
    *  20 |                       KBRLKTOD                        |
    *     +-------------------------------------------------------+
    *  28
    *
    *** Overlay for KBRMSG in KBRBK

    *** Overlay for KBRMSG in KBRBK
    *
    *     +-------------------------------------------------------+
    *  20 |                       KBRLTSYN                        |
    *     +-------------------------------------------------------+
    *  28
    *
    *** Overlay for KBRMSG in KBRBK

KBRBK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    KBRCAP         0000
    KBREYE         0005
    KBRHOPS        0028
    KBRLKTOD       0020
    KBRLTSYN       0020
    KBRMSG         0020
    KBRMTYPE       0004
    KBRNBNOD       0018
    KBRORNOD       0008
    KBRREQST       0004 00000001
    KBRRESPN       0004 00000002
    KBRRSNOD       0010
    KBRSIZD        0020 00000008
    KBRSIZE        0020 00000040
    KBRSTART       0000
    KBRSYNRQ       0020
    KBRSYNST       0030
    KBRSYTQA       0028
    KBRSYTQD       0020
    KBRSYTRD       0030
    KBRSYTRP       0038
    KBRTODST       0038

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:28:45 EDT.
Copyright IBM Corporation, 1990, 2020