Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

#### NEQBK

Prolog

Control Block Contents
NEQBK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### NEQBK Prolog

     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.
     COMMENTS   : Data map is hand drawn.

#### NEQBK Control Block Content

#### NEQBK DSECT

    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' General NEQ.
              .1.. ....      NEQSPECF       X'40' 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' Storage path zero for this
                                            cluster is configured in this
                                            storage director.
              .1.. ....      NEQSPONE       X'40' Storage path one for this
                                            cluster is configured in this
                                            storage director.
              .... ...1      NEQSCNUM       X'01' 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' Parallel Channel (including
                                            9034).
              .1.. ....      NEQECHAN       X'40' ESCON Channel.
              ..1. ....      NEQFCHAN       X'20' Fibre-extended channel
                                            (9034).
              ...1 ....      NEQFUNIT       X'10' Fibre-extended Control Unit
                                            (9035).
              .... 1...      NEQFIBRE       X'08' Fibre channel
    0012   18 Bitstring   14 *              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 *              Format Code.
    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
    0024   36 Signed       4 NEQCHPDS       Max number of CHPIDs for a device

#### NEQBK Storage Layout

    *** NEQBK - Node Element Qualifier Block
    *
    *     +------+------+-------------+------+--------------------+
    *   0 |:FLDID|:RECSL|  NEQINTID   |:DDTO |////////////////////|
    *     +------+------+------+------+------+------+------+------+
    *   8 |  NEQSSID    |:PCID |:UADD |NEQLDA|NEQPDA|:SAID |:ESLA-|
    *     +------+------+------+------+------+------+------+------+
    *  10 |-(00F)|NEQIPT|/////////////////////////////////////////|
    *     +------+------+/////////////////////////////////////////|
    *     |///////////////////////////////////////////////////////|
    *     +------+--------------------+---------------------------+
    *  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 |//////|//////|/////////////|///////////////////////////|
    *     +------+------+-------------+---------------------------+
    *   8 |//////|:PVBUA|/////////////////////////////////////////|
    *     +------+------+/////////////////////////////////////////|
    *     |///////////////////////////////////////////////////////|
    *     |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  20
    *
    *** Overlay for NEQDATA in NEQBK

#### NEQBK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    NEQCHPDS       0024
    NEQCHPID       0020
    NEQCPGID       000C
    NEQDATA        0000
    NEQDDTO        0004
    NEQECHAN       0011 40
    NEQECLVL       0014
    NEQESLA        000F
    NEQFCHAN       0011 20
    NEQFIBRE       0011 08
    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 V5R2.0. Last updated on 12 Apr 2006 at 17:06:50 EDT.
Copyright IBM Corporation, 1990, 2005