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 7.3.0 Last updated on 22 Jun 2022 at 15:50:26 EDT.
Copyright IBM Corporation, 1990, 2022