IUCVPTBK Back to Index page
 
Prolog 
Control Block Contents 
   IUCVPTBK 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.


  IUCVPTBK Prolog Top of page
 
 NAME       : IUCVPTBK
 DESCRIPTION: Path descriptive information
 DSECT      : IUCVPTBK
 FUNCTION   : Describe information relating to a specific
              path.
 
 
  IUCVPTBK Control Block Content Top of page
 

 IUCVPTBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure IUCVPTBK Path descriptive information 0000 0 Address 4 IUCVPTEX ADDRESS OF THE PROGRAM EXIT 0004 4 Signed 4 IUCVPTUW USER FULLWORD 0008 8 Character 8 IUCVPTID ID OF PROGRAM WHO OWN'S THIS PATH 0010 16 Address 4 IUCVPTFW Next active conversation 0014 20 Address 4 IUCVPTBW Previous active conversation 0018 24 Signed 4 IUCVPTWU Workunit ID for conversation 001C 28 Bitstring 1 IUCVPTF1 Flags 1... .... IUCVPTCN X'80' IUCVPTCN ON = control name owns it OFF = non-control name owns .1.. .... IUCVPTPS X'40' IUCVPTPS ON = Persistent conversation OFF = non-persistent conv .... 1... IUCVPTCP X'08' IUCVPTCP ON = CPI-CI conversation .... .1.. IUCVPTIU X'04' IUCVPTIU ON = IUCV path OFF= APPC/VM path 001D 29 Bitstring 1 IUCVPTF2 Flags 1... .... IUCVPTDP X'80' IUCVPTDP ON = Drive PCA .1.. .... IUCVPTSA X'40' IUCVPTSA ON = Path successfully acpt'd ..1. .... IUCVPTRG X'20' IUCVPTRG Registered conversation ...1 .... IUCVPTIO X'10' IUCVPTIO Inbound/Outbound indicator ON = Inbound Conversation OFF = Outbound Conversation .... 1... IUCVPTPA X'08' IUCVPTPA ON = Path Active OFF = Path not active .... .1.. IUCVPTSP X'04' IUCVPTSP ON = SyncPt (protected) conv .... ..1. IUCVPTAP X'02' IUCVPTAP Conversation Accepted by PCA .... ...1 IUCVPTSV X'01' IUCVPTSV Path Severed 001E 30 Bitstring 1 IUCVPTF3 Flags 1... .... IUCVPTRP X'80' IUCVPTRP ON = Backout issued with Resync in Progress by PCA .1.. .... IUCVPTIN X'40' IUCVPTIN ON = PCA is initiator 001F 31 Character 1 * Reserved for future use 0020 32 Dbl-Word 8 IUCVPTRT Registry Token from SPM 0028 40 Address 4 IUCVPTDB Pointer to DEP Block 002C 44 Address 4 IUCVPTLU Pointer to LUWID block 0030 48 Signed 4 IUCVPTDL DEP block usable error Length 0034 52 Signed 4 IUCVPTRI Request ID from SPM 0038 56 Dbl-Word 8 * Reserved for future use 00000008 IUCVPTSZ (*-IUCVPTBK+7)/8 SIZE OF AREA IN DOUBLEWORDS 00000040 IUCVPTSB IUCVPTSZ*8 Size of area in bytes 0000001B IUCVPTLL 27 LUWID block Length
 
 
  IUCVPTBK Storage Layout Top of page
 
 
*** IUCVPTBK - Path descriptive information
*
*     +---------------------------+---------------------------+
*   0 |         IUCVPTEX          |         IUCVPTUW          |
*     +---------------------------+---------------------------+
*   8 |                       IUCVPTID                        |
*     +---------------------------+---------------------------+
*  10 |         IUCVPTFW          |         IUCVPTBW          |
*     +---------------------------+------+------+------+------+
*  18 |         IUCVPTWU          |:VPTF1|:VPTF2|:VPTF3|//////|
*     +---------------------------+------+------+------+------+
*  20 |                       IUCVPTRT                        |
*     +---------------------------+---------------------------+
*  28 |         IUCVPTDB          |         IUCVPTLU          |
*     +---------------------------+---------------------------+
*  30 |         IUCVPTDL          |         IUCVPTRI          |
*     +---------------------------+---------------------------+
*  38 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  40
*
*** IUCVPTBK - Path descriptive information
 
 
  IUCVPTBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
IUCVPTAP       001D 02
IUCVPTBW       0014
IUCVPTCN       001C 80
IUCVPTCP       001C 08
IUCVPTDB       0028
IUCVPTDL       0030
IUCVPTDP       001D 80
IUCVPTEX       0000
IUCVPTFW       0010
IUCVPTF1       001C
IUCVPTF2       001D
IUCVPTF3       001E
IUCVPTID       0008
IUCVPTIN       001E 40
IUCVPTIO       001D 10
IUCVPTIU       001C 04
IUCVPTLL       0038 0000001B
IUCVPTLU       002C
IUCVPTPA       001D 08
IUCVPTPS       001C 40
IUCVPTRG       001D 20
IUCVPTRI       0034
IUCVPTRP       001E 80
IUCVPTRT       0020
IUCVPTSA       001D 40
IUCVPTSB       0038 00000040
IUCVPTSP       001D 04
IUCVPTSV       001D 01
IUCVPTSZ       0038 00000008
IUCVPTUW       0004
IUCVPTWU       0018
 
This information is based on z/VM 6.4.0.
Last updated on 24 Aug 2016 at 09:21:42 EDT.
Copyright IBM Corporation, 1990, 2016