HP UX 11i v1 I/O Cards manual Zcom Header Structure

ZCOM Tables and Data Structures

ZCOM Header Structure

ZCOM Header Structure

The ZCOM Header structure holds the system parameters and pointers to other areas of the ZCOM memory tables as well as other information that pertains to the whole ZCOM subsystem. The layout of the ZCOM Header structure zheader_type is shown in Table 3-1.

Table 3-1	ZCOM Header Structure
Field Name	Field Description	Field Type	Size
			(Bytes)
HLABEL	Header label	char [4]	4
HZREVC	ZCOM rev code	uns.short	2
HTREVC	TTGEN rev code	uns.short	2
HNAME1	Name of TTGEN source file	char [256]	256
HNAME2	Name of TTGEN object file	char [256]	256
HSNAME	System name (79 characters max)	char [80]	80
HSSOFF	System starting offset	uns.long long	8
HSSSIZE	Total system size in bytes	uns.int	4
HBPSIZE	Buffer pool size in bytes	uns.int	4
HNDMAX	Total number of node table entries	uns.short	2
HZLMAX	Total number of ZLUs	uns.short	2
HTMZLU	Number of terminal ZLUs	uns.short	2
HSPZLU	Number of program ZLUs	uns.short	2
HSPZL1	First program ZLU number	uns.short	2
HLTDSZE	Size of LTDATA in LT Table	uns.short	2
HLTMAX	Number of logical terminal tables	uns.short	2
HPTMAX	Number of physical terminal tables	uns.short	2
HNCARD	Number of interface tables	uns.short	2
HNRESP	Number of response records	uns.short	2
HNLTQL	Number of LTT queue labels	uns.short	2
HNLTSL	Number of LTT storage labels	uns.short	2
HPNTBL	Pointer to 1st Node table entry	pointer	8

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