NEQBK | Back to Index page

| Prolog Control Block Contents NEQBK 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.

NEQBK Prolog | Top of page

     NAME       : HCPNEQBK
     DESCRIPTION: Node Element Qualifier Block
     DSECT      : NEQBK
     FUNCTION   : Describes the Contents of a Node Element
                  Qualifier.
     LOCATED BY : For General NEQ - A NEDBK which uses the Boeblingen
                  Buiding Blocks to point to the NEQBK
     CREATED BY : HCPCDT - Configuration Data Table Services
     DELETED BY : None.
     SERIALIZED : This block will be serialized by the RDEV lock.
     RELOCATION CONSIDERATIONS : None
     COMMENTS   : Data map is hand drawn.

NEQBK Control Block Content | Top of page

     NEQBK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      NEQBK          Node Element Qualifier Block
    0000    0 Bitstring   32 NEQDATA (0)    Node Element Data
    0000    0 Bitstring    1 NEQFLAGS (0)   FLAGS.
    0000    0 Bitstring    1 NEQFLDID       Field ID.
              1... ....      NEQGENRL       X'80' NEQGENRL General NEQ.
              .1.. ....      NEQSPECF       X'40' NEQSPECF Specific NEQ.
    0001    1 Bitstring    1 NEQRECSL       Record Selector. For 3490 this
                                            indicates which control unit this
                                            path is connected to.
    0002    2 Bitstring    2 NEQINTID       Interface ID.
    0004    4 Bitstring    1 NEQDDTO        Device-dependent time out.
    0005    5 Bitstring    3 *              Reserved for future IBM use.
    0008    8 Bitstring    2 NEQSSID        Subsystem ID.
    000A   10 Bitstring    1 NEQPCID        Paths/Cluster ID.
              1... ....      NEQSPZER       X'80' NEQSPZER Storage path zero
                                            for this cluster is configured in
                                            this storage director.
              .1.. ....      NEQSPONE       X'40' NEQSPONE Storage path one
                                            for this cluster is configured in
                                            this storage director.
              .... ...1      NEQSCNUM       X'01' NEQSCNUM Storage cluster
                                            number
    000B   11 Bitstring    1 NEQUADD        Unit address.
    000C   12 Bitstring    1 NEQLDA         Logical Device address.
    000D   13 Bitstring    1 NEQPDA         Physical Device address.
    000E   14 Bitstring    1 NEQSAID        SA ID.
    000F   15 Bitstring    2 NEQESLA        ESCON Link Address.
    0011   17 Bitstring    1 NEQIPT         Interface Protocol Type.
              1... ....      NEQPCHAN       X'80' NEQPCHAN Parallel Channel
                                            (including 9034).
              .1.. ....      NEQECHAN       X'40' NEQECHAN ESCON Channel.
              ..1. ....      NEQFCHAN       X'20' NEQFCHAN Fibre-extended
                                            channel (9034).
              ...1 ....      NEQFUNIT       X'10' NEQFUNIT Fibre-extended
                                            Control Unit (9035).
              .... 1...      NEQFIBRE       X'08' NEQFIBRE Fibre channel
    0012   18 Bitstring    1 *              Reserved for future IBM use.
    0013   19 Bitstring    1 NEQFIBUA       Unit Address (Fibre)
    0014   20 Bitstring    4 *              Reserved for future IBM use.
    0018   24 Bitstring    1 NEQB24         General NEQ Byte 24
    0019   25 Bitstring    1 NEQB25         General NEQ Byte 25
    001A   26 Bitstring    6 *              Reserved for future IBM use.
    0020   32 Bitstring    1 NEQCHPID       Channel Path ID.
    0021   33 Bitstring    3 *              Reserved for future IBM use.
              00000024       NEQLEN         (*-NEQBK) NEQBK size in bytes.
              00000005       NEQSIZE        (*-NEQBK+7)/8 NEQBK size in
                                            doublewords
         * Subsystem ID redefinition for tape devices
    0008    8 Bitstring    1 NEQSTRID       String ID for 3490
         * Switch NEQDATA redefinition
    0000    0 Bitstring    8 *              Same as defined in NEQDATA
    0008    8 Bitstring    4 NEQNUMLP       Number of logical paths
    000C   12 Bitstring    2 NEQCPGID       Code Page Global ID
    000E   14 Bitstring    2 NEQGCSID       Graphic Character Set Global ID
    0010   16 Bitstring    4 NEQRSRVD       Reserved for future IBM use
    0014   20 Bitstring    7 NEQECLVL       Box EC Level Identifier
    001B   27 Bitstring    1 *              Reserved for future IBM use
    001C   28 Bitstring    4 NEQLICVR       Licensed Internal Code Version
                                            and Release
         * Specific NEQ for a volume NED of a parallel access
         * volume.
    0000    0 Bitstring    1 *              Same as defined in NEQDATA
    0001    1 Bitstring    1 *              Reserved for future IBM use
    0002    2 Bitstring    2 NEQBYTE2       NEQBK Byte 2
    0004    4 Bitstring    4 *              Reserved for future IBM use
    0008    8 Bitstring    1 *              DASD Specific Unit Address flags.
    0009    9 Bitstring    1 NEQPVBUA       Parallel volume base unit
                                            address.
    000A   10 Bitstring   22 *              Reserved for future IBM use
           DASD ESCON NEQ mapping
    0000    0 Bitstring    1 *              Same as defined in NEQDATA
    0001    1 Bitstring    1 NEQDEBY01      Record Selector - set to 0
    0002    2 Bitstring    2 NEQDEIID       Interface ID. Bytes 2-3
    0004    4 Bitstring    1 NEQDEDDT       Device-dependent time out
    0005    5 Bitstring    1 *              Reserved for future IBM use
    0006    6 Bitstring    1 NEQDEPMIT      Pri missing int timer interval
    0007    7 Bitstring    1 NEQDESMIT      Sec missing int timer interval
    0008    8 Bitstring    2 NEQDESSID      Subsystem ID. bytes 8-9
    000A   10 Bitstring    1 *              Reserved for future IBM use
    000B   11 Bitstring    1 NEQDEUAD       Unit address. byte 11
    000C   12 Bitstring    1 NEQDEPDID      Physical device addr byte 12
    000D   13 Bitstring    1 NEQDEPDA       Physical Device addr byte 13
    000E   14 Bitstring    1 *              Reserved for future IBM use
    000F   15 Bitstring    2 NEQDEESLA      ESCON Link Addr bytes 15-16
    0011   17 Bitstring    1 *              Same as defined in NEQDATA
    0012   18 Bitstring    1 NEQDEFMT       NEQ format flags byte 18
              1... ....      NEQDEFMT0      X'80' NEQDEFMT0 Byte 12 is
                                            physical device id
              .1.. ....      NEQDEFMT1      X'40' NEQDEFMT1 Bytes 28-31 valid
              .... .111      NEQDEFMT5      X'07' NEQDEFMT5 Path
                                            accessability
    0013   19 Bitstring    1 NEQDELDA       Logical device addres byte 19
    0014   20 Bitstring    4 *              Reserved for PAV bytes 20-23
    0018   24 Bitstring    2 NEQDESAID      SA ID bytes 24-25
    001A   26 Bitstring    2 *              Reserved for future IBM use
    001C   28 Bitstring    4 NEQDENLP       Number of logical paths
           DASD FICON NEQ mapping
    0000    0 Bitstring    1 *              Same as defined in NEQDATA
    0001    1 Bitstring    1 NEQDFBY01      Record Selector - set to 0
    0002    2 Bitstring    2 NEQDFIID       Interface ID. Bytes 2-3
    0004    4 Bitstring    1 NEQDFDDT       Device-dependent time out
    0005    5 Bitstring    1 *              Reserved for future IBM use
    0006    6 Bitstring    1 NEQDFPMIT      Pri missing int timer interval
    0007    7 Bitstring    1 NEQDFSMIT      Sec missing int timer interval
    0008    8 Bitstring    2 NEQDFSSID      Subsystem ID. bytes 8-9
    000A   10 Bitstring    2 NEQDFLPM       Logical path num bytes 10-11
    000C   12 Bitstring    3 NEQDFHFCA      Host, fiber channel address
    000F   15 Bitstring    1 NEQDFHCLA      Host channel logical address
    0010   16 Bitstring    1 *              Reserved for future IBM use 16
    0011   17 Bitstring    1 *              Same as defined in NEQDATA
    0012   18 Bitstring    1 *              Same as NEQDEFMT byte 18
    0013   19 Bitstring    1 NEQDFLA        Logical address byte 19
    0014   20 Bitstring    4 *              Reserved for PAV bytes 20-23
    0018   24 Bitstring    2 NEQDFSAID      SA ID bytes 24-25
    001A   26 Bitstring    2 *              Reserved for future IBM use
    001C   28 Bitstring    4 NEQDFNLP       Number of logical paths
    0024   36 Signed       4 NEQCHPDS       Max number of CHPIDs for a device

NEQBK Storage Layout | Top of page

    *** NEQBK - Node Element Qualifier Block
    *
    *     +------+------+-------------+------+--------------------+
    *   0 |:FLDID|:RECSL|  NEQINTID   |:DDTO |////////////////////|
    *     +------+------+------+------+------+------+------+------+
    *   8 |  NEQSSID    |:PCID |:UADD |NEQLDA|NEQPDA|:SAID |:ESLA-|
    *     +------+------+------+------+------+------+------+------+
    *  10 |-(00F)|NEQIPT|//////|:FIBUA|///////////////////////////|
    *     +------+------+------+------+---------------------------+
    *  18 |NEQB24|NEQB25|/////////////////////////////////////////|
    *     +------+------+-------------+---------------------------+
    *  20 |:CHPID|////////////////////|         NEQCHPDS          |
    *     +------+--------------------+---------------------------+
    *  28
    *
    *** NEQBK - Node Element Qualifier Block

    *** Overlay for NEQSSID in NEQBK
    *
    *     +------+
    *   8 |:STRID| 9
    *     +------+
    *
    *** Overlay for NEQSSID in NEQBK

    *** Overlay for NEQDATA in NEQBK
    *
    *     +-------------------------------------------------------+
    *   0 |///////////////////////////////////////////////////////|
    *     +---------------------------+-------------+-------------+
    *   8 |         NEQNUMLP          |  NEQCPGID   |  NEQGCSID   |
    *     +---------------------------+-------------+-------------+
    *  10 |         NEQRSRVD          |        NEQECLVL-          |
    *     +--------------------+------+---------------------------+
    *  18 |      -(014)        |//////|         NEQLICVR          |
    *     +--------------------+------+---------------------------+
    *  20
    *
    *** Overlay for NEQDATA in NEQBK

    *** Overlay for NEQDATA in NEQBK
    *
    *     +------+------+-------------+---------------------------+
    *   0 |//////|//////|  NEQBYTE2   |///////////////////////////|
    *     +------+------+-------------+---------------------------+
    *   8 |//////|:PVBUA|/////////////////////////////////////////|
    *     +------+------+/////////////////////////////////////////|
    *     |///////////////////////////////////////////////////////|
    *     |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  20
    *
    *** Overlay for NEQDATA in NEQBK

    *** Overlay for NEQDATA in NEQBK
    *
    *     +------+------+-------------+------+------+------+------+
    *   0 |//////|(001) |  NEQDEIID   |:DEDDT|//////|(006) |(007) |
    *     +------+------+------+------+------+------+------+------+
    *   8 | NEQDESSID   |//////|:DEUAD|(00C) |:DEPDA|//////|(00F)-|
    *     +------+------+------+------+------+------+------+------+
    *  10 |-(00F)|//////|:DEFMT|:DELDA|///////////////////////////|
    *     +------+------+------+------+---------------------------+
    *  18 | NEQDESAID   |/////////////|         NEQDENLP          |
    *     +-------------+-------------+---------------------------+
    *  20
    *
    *** Overlay for NEQDATA in NEQBK

    *** Overlay for NEQDATA in NEQBK
    *
    *     +------+------+-------------+------+------+------+------+
    *   0 |//////|(001) |  NEQDFIID   |:DFDDT|//////|(006) |(007) |
    *     +------+------+-------------+------+------+------+------+
    *   8 | NEQDFSSID   |  NEQDFLPM   |     NEQDFHFCA      |(00F) |
    *     +------+------+------+------+--------------------+------+
    *  10 |//////|//////|//////|:DFLA |///////////////////////////|
    *     +------+------+------+------+---------------------------+
    *  18 | NEQDFSAID   |/////////////|         NEQDFNLP          |
    *     +-------------+-------------+---------------------------+
    *  20
    *
    *** Overlay for NEQDATA in NEQBK

NEQBK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    NEQBYTE2       0002
    NEQB24         0018
    NEQB25         0019
    NEQCHPDS       0024
    NEQCHPID       0020
    NEQCPGID       000C
    NEQDATA        0000
    NEQDDTO        0004
    NEQDEBY01      0001
    NEQDEDDT       0004
    NEQDEESLA      000F
    NEQDEFMT       0012
    NEQDEFMT0      0012 80
    NEQDEFMT1      0012 40
    NEQDEFMT5      0012 07
    NEQDEIID       0002
    NEQDELDA       0013
    NEQDENLP       001C
    NEQDEPDA       000D
    NEQDEPDID      000C
    NEQDEPMIT      0006
    NEQDESAID      0018
    NEQDESMIT      0007
    NEQDESSID      0008
    NEQDEUAD       000B
    NEQDFBY01      0001
    NEQDFDDT       0004
    NEQDFHCLA      000F
    NEQDFHFCA      000C
    NEQDFIID       0002
    NEQDFLA        0013
    NEQDFLPM       000A
    NEQDFNLP       001C
    NEQDFPMIT      0006
    NEQDFSAID      0018
    NEQDFSMIT      0007
    NEQDFSSID      0008
    NEQECHAN       0011 40
    NEQECLVL       0014
    NEQESLA        000F
    NEQFCHAN       0011 20
    NEQFIBRE       0011 08
    NEQFIBUA       0013
    NEQFLAGS       0000
    NEQFLDID       0000
    NEQFUNIT       0011 10
    NEQGCSID       000E
    NEQGENRL       0000 80
    NEQINTID       0002
    NEQIPT         0011
    NEQLDA         000C
    NEQLEN         0021 00000024
    NEQLICVR       001C
    NEQNUMLP       0008
    NEQPCHAN       0011 80
    NEQPCID        000A
    NEQPDA         000D
    NEQPVBUA       0009
    NEQRECSL       0001
    NEQRSRVD       0010
    NEQSAID        000E
    NEQSCNUM       000A 01
    NEQSIZE        0021 00000005
    NEQSPECF       0000 40
    NEQSPONE       000A 40
    NEQSPZER       000A 80
    NEQSSID        0008
    NEQSTRID       0008
    NEQUADD        000B

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:29:22 EDT.
Copyright IBM Corporation, 1990, 2020