WWPN | Back to Index page

| Prolog Control Block Contents WWPN 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.

WWPN Prolog | Top of page

     NAME       : HCPFCPBK
     DESCRIPTION: Allows multiple WWPNs to be added to
                  an RDEV.
     DSECT      : WWPN
     FUNCTION   : Provide storage space for WWPNs attached to
                  FCPBK.

WWPN Control Block Content | Top of page

     WWPN DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      WWPN           Allows multiple WWPNs to be added to
    0000    0 Address      4 WWPNFWRD       Address of next WWPN
    0008    8 Dbl-Word     8 WWPNVAL        WWPN Device number
    0010   16 Bitstring    1 WWPNFLAG       WWPN Flag byte
              1... ....      WWPNACT        X'80' WWPNACT Bit for active
                                            state
    0011   17 Bitstring    3 WWPNDID        Device Identifier
    0014   20 Signed       4 WWPNHNDL       Port Handle
    0018   24 Dbl-Word     8 *              Reserved for IBM use
              00000020       WWPNBYSZ       *-WWPN WWPN size in bytes
              00000004       WWPNDSZ        ((*-WWPN)+7)/8 WWPN size in
                                            double-words

WWPN Storage Layout | Top of page

    *** WWPN - Allows multiple WWPNs to be added to
    *
    *     +---------------------------+---------------------------+
    *   0 |         WWPNFWRD          |///////////////////////////|
    *     +---------------------------+---------------------------+
    *   8 |                       WWPNVAL                         |
    *     +------+--------------------+---------------------------+
    *  10 |:NFLAG|      WWPNDID       |         WWPNHNDL          |
    *     +------+--------------------+---------------------------+
    *  18 |///////////////////////////////////////////////////////|
    *     +-------------------------------------------------------+
    *  20
    *
    *** WWPN - Allows multiple WWPNs to be added to

WWPN Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    WWPNACT        0010 80
    WWPNBYSZ       0018 00000020
    WWPNDID        0011
    WWPNDSZ        0018 00000004
    WWPNFLAG       0010
    WWPNFWRD       0000
    WWPNHNDL       0014
    WWPNVAL        0008

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:28:11 EDT.
Copyright IBM Corporation, 1990, 2020