LDCBK Back to Index page
 
Prolog 
Control Block Contents 
   LDCBK 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.


  LDCBK Prolog Top of page
 
 NAME       : HCPLDCBK
 DESCRIPTION: ISFC Line Driver Constants
 DSECT      : LDCBK
 FUNCTION   : Map initialization parameters for an ISFC link device.
 LOCATED BY : Found in HCPFCA.
 CREATED BY : HCPFCA    part of the resident module.
 DELETED BY : Does not apply (data contained within a module).
 SERIALIZED : The ISFC global lock (HCPBDSGL).
 RELOCATION CONSIDERATIONS : None
 
 
  LDCBK Control Block Content Top of page
 

 LDCBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure LDCBK ISFC Line Driver Constants 0000 0 Signed 4 LDCENTAL ADD LINK ROUTINE ADDRESS 0004 4 Signed 4 LDCENTDL DELETE LINK ROUTINE ADDRESS 0008 8 Signed 4 LDCENTRS RESET ROUTINE ADDRESS 000C 12 Signed 4 LDCENTRD READ ROUTINE ADDRESS 0010 16 Signed 4 LDCENTRX READ COMPLETE ROUTINE ADDR 0014 20 Signed 4 LDCENTWR WRITE ROUTINE ADDRESS 0018 24 Signed 4 LDCENTWX WRITE COMPLETE ROUTINE ADDR 001C 28 Signed 4 LDCDEFBC DEFAULT BUFFER COUNT 0020 32 Signed 4 LDCMINBC MINIMUM BUFFER COUNT 0024 36 Signed 4 LDCMAXBC MAXIMUM BUFFER COUNT 0028 40 Bitstring 1 LDCTYPE DEVICE TYPE 0029 41 Bitstring 3 * RESERVED 002C 44 Signed 4 * Reserved 0030 48 Dbl-Word 8 * Reserved 00000038 LDCLN *-LDCBK LENGTH OF CONSTANTS (BYTE)
 
 
  LDCBK Storage Layout Top of page
 
          
*** LDCBK - ISFC Line Driver Constants
*
*     +---------------------------+---------------------------+
*   0 |         LDCENTAL          |         LDCENTDL          |
*     +---------------------------+---------------------------+
*   8 |         LDCENTRS          |         LDCENTRD          |
*     +---------------------------+---------------------------+
*  10 |         LDCENTRX          |         LDCENTWR          |
*     +---------------------------+---------------------------+
*  18 |         LDCENTWX          |         LDCDEFBC          |
*     +---------------------------+---------------------------+
*  20 |         LDCMINBC          |         LDCMAXBC          |
*     +------+--------------------+---------------------------+
*  28 |:TYPE |////////////////////|///////////////////////////|
*     +------+--------------------+---------------------------+
*  30 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  38
*
*** LDCBK - ISFC Line Driver Constants
 
 
  LDCBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
LDCDEFBC       001C
LDCENTAL       0000
LDCENTDL       0004
LDCENTRD       000C
LDCENTRS       0008
LDCENTRX       0010
LDCENTWR       0014
LDCENTWX       0018
LDCLN          0030 00000038
LDCMAXBC       0024
LDCMINBC       0020
LDCTYPE        0028
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:52:00 EDT.
Copyright IBM Corporation, 1990, 2022