Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM. |
ISFSYSTB
Control Block Contents
ISFSYSTB DSECT
ISFNAMTB DSECT
ISFVOLTB DSECT
ISFDEVTB DSECT
ISFXLSTB DSECT
ISFEXTAB DSECT
Cross Reference (Contains links to field and bit definitions)
ISFSYSTB Prolog
NAME : CSEBLOKS DESCRIPTION: Definition tables for Cross System Extensions DSECT : ISFSYSTB (primary) Notes : - Tables are built during system initialization and system configuration file processing. - Only ISFSYSTB is included in the PL/X version of this control block. Fields in ISFSYSTB are initialized using the Assembler version of the table, therefore initial values are not included in the PL/X version. HISTORY : The PLX portion of this block was created for PITS 2T0H788.
ISFSYSTB Control Block Content
ISFSYSTB DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFSYSTB Definition tables for Cross System 0000 0 Address 4 ISFSDTAB Devtype table 0004 4 Address 4 ISFSSYS# # of sys for XLINK 0008 8 Address 4 ISFXLKVI Ptr to XLINK volume inc 000C 12 Address 4 ISFXLKVX Ptr to XLINK volume exc 0010 16 Address 4 ISFXLNKI Ptr to XLINK include li 0014 20 Address 4 ISFXLNKX Ptr to XLINK exclude li 0018 24 Address 4 * Reserved for future IBM Use 001C 28 Address 4 * Reserved for future IBM Use 0020 32 Address 4 * Reserved for future IBM Use 0024 36 Address 4 * Reserved for future IBM Use 0028 40 Address 4 * Reserved for future IBM Use 002C 44 Address 4 * Reserved for future IBM Use 0030 48 Address 4 * Reserved for future IBM Use 0034 52 Address 4 * Reserved for future IBM Use 0038 56 Character 8 ISFSDATE Assembly date 0040 64 Character 8 ISFSTIME Assembly time 0048 72 Signed 4 ISFSSYSP This system's position in LINK INCLUDE list. 004C 76 Bitstring 1 ISFSSTAT I*1 STATUS FLAG BYTE 1... .... ISFSCVM X'80' CS communications active .1.. .... ISFSXLNK X'40' XLINK active ..1. .... ISFSXVI X'20' An XLINK_VOLUME_INCLUDE statement was issued. Used to determine whether or not all volumes should be included by default. 004D 77 Bitstring 3 * Reserved for future IBM Use 0050 80 Address 4 ISFSYSMN A(This system's SHPBK) 0054 84 Address 4 ISFSYSFN A(First SHPBK) 0058 88 Signed 4 ISFSYSNN Count of SHPBKs 005C 92 Signed 4 * Reserved for future IBM Use 0060 96 Dbl-Word 8 * Reserved for future IBM Use 0068 104 Address 4 ISFSYSIX A(CSEUSER include list) 006C 108 Address 4 ISFSYSOX A(CSEUSER exclude list) 00000070 ISFSYSTL *-ISFSYSTB Length of table
ISFNAMTB DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFNAMTB Definition tables for Cross System CSL layout of systemname table. DSECT is mapped on: ISFNTABI - table in HCPXSY 0000 0 Character 8 ISFNAME system name 00000008 ISFNLEN *-ISFNAMTB length of one entry 00000038 ISFINMAX 56 A (somewhat) arbitrary limit of the number of system names that we will allow for the XLINK_SYSTEM_INCLUDE list of systems. This limit is also imposed on the system names specified in the CSESYS macro in HCPSYS by the local assembler arithmetic variable &MAXSYS, which is defined in macro CSESYSLN.
ISFVOLTB DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFVOLTB Definition tables for Cross System CS link layout of volume table. DSECT is mapped on: ISFVTABI - internal table in this module ISFVTAB - the external table specified by the user 0000 0 Character 6 ISFVSER volume serial number 0006 6 Address 2 ISFVCYL ISFCYL this volid 0008 8 Address 2 ISFVTRK ISFTRK this volid 000A 10 Address 2 ISFVRECL ISFRECL this volid 000C 12 Address 2 ISFVRECS ISFRECS this volid 0010 16 Dbl-Word 8 * (0) 00000010 ISFVLEN *-ISFVOLTB length of one entry
ISFDEVTB DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFDEVTB Definition tables for Cross System CSL layout of device dependent table. DSECT mapped on: ISFDTABI - table in HCPXSY 0000 0 Bitstring 1 ISFDTYPE I*1 DEVTYPE 0001 1 Bitstring 1 ISFDCLAS Device class for 3380 0002 2 Signed 2 ISFDCYL ISFCYL 0004 4 Signed 2 ISFDTRK ISFTRACK 0006 6 Signed 2 ISFDRECL ISFRECL 0008 8 Signed 2 ISFDRECS ISFRECORDS 000A 10 Bitstring 1 ISFDOCL Original CLASS= value 000B 11 Bitstring 1 ISFDFLG Flag byte. This field is valid only during processing of the system config XLINK_DEVICE_DEFAULTS statements. A value of zero means that this entry has not been replaced by a config file statement. 000C 12 Address 4 ISFDFWD A(next ISFDEVTB). This field is valid only during processing of the system config XLINK_DEVICE_DEFAULTS statements. 0010 16 Dbl-Word 8 * (0) 00000010 ISFDLEN *-ISFDEVTB length of an entry
ISFXLSTB DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFXLSTB Definition tables for Cross System CSE layout of exclusion list table. 0000 0 Address 4 ISFXLFWD Forward pointer 0004 4 Address 4 * Reserved 0008 8 Character 8 ISFXL1ST (0) First possible item 0FF8 4088 Bitstring 8 ISFXLEND Set to X'FF' to mark end of . list 00000200 ISFXLLEN (*-ISFXLSTB)/8 Length (in dwords) of area
ISFEXTAB DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFEXTAB Definition tables for Cross System Extended CSE list format used for: - XLINK system inclusion and exclusion lists - XLINK volume inclusion and exclusion lists 0000 0 Address 4 ISFEXNXT Pointer to next chunk 0004 4 Address 4 ISFEXCNT Count of items in this chunk 0008 8 Address 4 ISFEXELN Length of individual entry 000C 12 Address 4 * Reserved for future IBM use 0010 16 Dbl-Word 8 ISFEXSTA (0) Start of entries 00000010 ISFEXLEN *-ISFEXTAB Length of header
ISFSYSTB Storage Layout
*** ISFSYSTB - Definition tables for Cross System * * +---------------------------+---------------------------+ * 0 | ISFSDTAB | ISFSSYS# | * +---------------------------+---------------------------+ * 8 | ISFXLKVI | ISFXLKVX | * +---------------------------+---------------------------+ * 10 | ISFXLNKI | ISFXLNKX | * +---------------------------+---------------------------+ * 18 |///////////////////////////|///////////////////////////| * +---------------------------+---------------------------+ * 20 |///////////////////////////|///////////////////////////| * +---------------------------+---------------------------+ * 28 |///////////////////////////|///////////////////////////| * +---------------------------+---------------------------+ * 30 |///////////////////////////|///////////////////////////| * +---------------------------+---------------------------+ * 38 | ISFSDATE | * +-------------------------------------------------------+ * 40 | ISFSTIME | * +---------------------------+------+--------------------+ * 48 | ISFSSYSP |:SSTAT|////////////////////| * +---------------------------+------+--------------------+ * 50 | ISFSYSMN | ISFSYSFN | * +---------------------------+---------------------------+ * 58 | ISFSYSNN |///////////////////////////| * +---------------------------+---------------------------+ * 60 |///////////////////////////////////////////////////////| * +---------------------------+---------------------------+ * 68 | ISFSYSIX | ISFSYSOX | * +---------------------------+---------------------------+ * 70 * *** ISFSYSTB - Definition tables for Cross System *** ISFNAMTB - Definition tables for Cross System * * +-------------------------------------------------------+ * 0 | ISFNAME | * +-------------------------------------------------------+ * 8 * *** ISFNAMTB - Definition tables for Cross System *** ISFVOLTB - Definition tables for Cross System * * +-----------------------------------------+-------------+ * 0 | ISFVSER | ISFVCYL | * +-------------+-------------+-------------+-------------+ * 8 | ISFVTRK | ISFVRECL | ISFVRECS |/////////////| * +-------------+-------------+-------------+-------------+ * 10 * *** ISFVOLTB - Definition tables for Cross System *** ISFDEVTB - Definition tables for Cross System * * +------+------+-------------+-------------+-------------+ * 0 |:DTYPE|:DCLAS| ISFDCYL | ISFDTRK | ISFDRECL | * +------+------+------+------+-------------+-------------+ * 8 | ISFDRECS |:DOCL |:DFLG | ISFDFWD | * +-------------+------+------+---------------------------+ * 10 * *** ISFDEVTB - Definition tables for Cross System *** ISFXLSTB - Definition tables for Cross System * * +---------------------------+---------------------------+ * 0 | ISFXLFWD |///////////////////////////| * +---------------------------+---------------------------+ * 8 | | * = ISFXL1ST = * | | * +-------------------------------------------------------+ * FF8 | ISFXLEND | * +-------------------------------------------------------+ *1000 * *** ISFXLSTB - Definition tables for Cross System *** ISFEXTAB - Definition tables for Cross System * * +---------------------------+---------------------------+ * 0 | ISFEXNXT | ISFEXCNT | * +---------------------------+---------------------------+ * 8 | ISFEXELN |///////////////////////////| * +---------------------------+---------------------------+ * *** ISFEXTAB - Definition tables for Cross System
ISFSYSTB Cross Reference
Symbol Dspl Value -------------- ---- ----- ISFDCLAS 0001 ISFDCYL 0002 ISFDFLG 000B ISFDFWD 000C ISFDLEN 0010 00000010 ISFDOCL 000A ISFDRECL 0006 ISFDRECS 0008 ISFDTRK 0004 ISFDTYPE 0000 ISFEXCNT 0004 ISFEXELN 0008 ISFEXLEN 0010 00000010 ISFEXNXT 0000 ISFEXSTA 0010 ISFINMAX 0000 00000038 ISFNAME 0000 ISFNLEN 0000 00000008 ISFSCVM 004C 80 ISFSDATE 0038 ISFSDTAB 0000 ISFSSTAT 004C ISFSSYS# 0004 ISFSSYSP 0048 ISFSTIME 0040 ISFSXLNK 004C 40 ISFSXVI 004C 20 ISFSYSFN 0054 ISFSYSIX 0068 ISFSYSMN 0050 ISFSYSNN 0058 ISFSYSOX 006C ISFSYSTL 006C 00000070 ISFVCYL 0006 ISFVLEN 0010 00000010 ISFVRECL 000A ISFVRECS 000C ISFVSER 0000 ISFVTRK 0008 ISFXLEND 0FF8 ISFXLFWD 0000 ISFXLKVI 0008 ISFXLKVX 000C ISFXLLEN 0FF8 00000200 ISFXLNKI 0010 ISFXLNKX 0014 ISFXL1ST 0008
This information is based on z/VM V4R1.0.
Last updated on 5 Jun 2001 at 12:47:24 EDT.
Copyright IBM Corporation, 1990, 2001