ACC Programmer’s Reference Guide
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First Edition February 2004 Release
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Contents
Zcom C I/F Library Routines
Contents
Contents
Zcom Subsystem
Introduction
Zcom Software Overview
Overview of Zcom Software Structure
Zcom Subsystem Components
Zcom Software Overview
Zcom Concepts
Definition and Features of ZLUs
Program ZLUs
Zcom Concepts
User Interface
References
Zcom Message Handling
Overview
ZLU Definition
Mapped ZLUs
Program Message Queueing
Message Queuing
Physical Terminal Table
Priorities
Multiplexing
Outbound Multiplexing
Inbound Multiplexing
PTZRVR=PZLU
Inbound Multiplexing
Terminal State
Terminal State
Error Handling
Error Handling Chapter
Zcom Tables and Data
Zcom Tables and Data Structures
Memory Organization
Memory Organization
Differences in 32-bit and 64-bit Data Structures
ACC Zcom product to implement its functionality. These data
Zcom Header Structure
Zcom Header Structure
Field Name Field Description Field Type Size Bytes
Hnresp
Hncard
Hnltql
Hnltsl
Hndsig
Hndpid
Hnidle
Hnhigh
Zcom Header Structure
Zcom Header Structure
Zcom Header Structure
Zcom Header Structure
Zcom Header Structure
Ttgen
Zcom Header Structure
Qlbgrp
Queue Label Table
Qlbnam
Qlbqnb
Storage Label Table
Zcom Header Structure
Node Entries Table
Node Entries Table
FLAGS.event
Stats Data Structure
FLAGS.valid
FLAGS.status
Host Link Information Structure
Node Entries Table
Individual ZLU Data Structure zlutype
ZLU Tables
Type Description
ZLU Type Values
ZLU Tables
Logical Terminal Tables
Logical Terminal Table Reserved Area
Field Name Field Description Size Type Bytes
Logical Terminal Table User Maintainable Area
SPARE2
10 Logical Terminal Table User Maintainable Area
System Status flags
Logical Terminal Tables
LTCWCT, LTTXCT, LTRXCT, Lterct Message and error counters
Logical Status Format Ltstat
LTINST, LTBRCH, LTWORK, Ltarea Terminal logical ID
Physical Terminal Tables System Area
Physical Terminal Tables
Physical Terminal Tables User Maintainable Area
Ptuser
Physical Terminal Tables
Physical Terminal Tables
Physical Terminal Tables
Terminal Status Field Ptdrst
Physical Terminal Tables
Physical Terminal Tables
Interface Table
Interface Table
Imaxterms
Iportn
63-32 31-2 27-18 17-1 13-12 10-6
Interface HPA Value Format Inhpa
Interface Card Status Ifstat
Symbol Value hex Meaning
Scheduler Event Flags Ischdl
Interface Table
Interface Table
CARD.MMP Structure
CARD.BSP Structure
Interface Table
Tmtail
Itxlstx Express Transmit List Headers
Interface Table
Zcomipstattxbx
Port Configuration Buffer Iportn
20 4-Channel E1/T1 ACC Card Format
31-30 29-26 26-22 21-20 19-16 15-11 10-0
Fmode
Timeslot Array Element Structure
Port Subchannel Configuration Structure
31-30 29-24 23-8
23 Subchannel Specification Array Element Structure
Itbs
INV
Interface Table
Optional E1/T1 Tunable Parameters
Bquota
Response Record Format
Response Records
Response Type Field
Symbol Value Meaning
Zcomrptypebuffer
Zcomrptyperemote
100
Free Queue Header Structure zfqhtype
Queue Header
Qlimit
Queue Header Structure zqhdtype
Qfdata
Qfunc
Chapter 103
Queue Flag Format
Symbol Value Meaning Hex
Chapter 105
Organization of Buffer Pool
Data Buffer Pool
Chapter 107
Buffer Pool Layout when first initialized
System flags length & status Uns.int
Linkage to the next buffer. zbhdtype. See -30 and Table
Reserved, not used Int
Pointer to next buffer on queue
Flag
32 Buffer flags Bfflag Field Format
Chapter 111
Message Header zmhdtype
Message Header
MID
MRQ
Message ID Header zmidtype
Message Type Mstype
37 Response code for all other message types
Response code for message type 2 and 10 Format
LPR XPS PGW BFR DEF ERR
LPR
Message Request Header zmrqtype
Request Value Description
Mrqcode Terminal request codes
118
System Event Message zeventtype Structure
Nodenum
Node Status Change Event Fields Zcomsetypenode
Nstat
Spare
Dynamic Reconfiguration Event
Cfgclass
CFGINFO1
Change in Card Status Event Zcomsetypecard
Chapter 123
HPA Table Entries
Zcom Kernel Data
HPA value of this interface Long
Reserved for future use Int
Chapter 125
HPA value of I/F card Hpano
Chapter 127
SYS structure Zcom system global information
Current Zcom system status
Current Zcom system status Higher Order Bits
Name Value hex State
Debug Level Field Format
Debug Level Field Values
Bit Name Value Meaning Hex
Chapter 131
132
Zcglock
Linfo Structure Fields
Zcmlock
Zcrlock
Super IFT spinlock Zcslock Data Structure
Lockp
Refcount
Zcom C I/F Library Routines
136
Initialization call
Zinit Zcom library access initialization
Interface configuration calls
Zsend Send data buffer to ZLU
ZLU information calls
ZLU Definition
Man Pages
Cancellation point
Getdevice
Fork unsafe
Chapter 143
Pointer to a data structure containing the full
Allocated memory when it is no longer needed
Device table. The device table is an array
Zdevtype elements
Multiprotocol ACC Utilities Reference
Device file, /opt/acc/cfg/zcomdevice
Zdgen1, malloc3C
Opt/acc/cfg/zcomdevice.txt
Ltfind
Laddr
Zap
Llen
Ibuf Return Param
Chapter 149
150
Ltqdget
152
Ltqdget
154
Ltqdput
156
Ltqdput
Zcom error codes and their meanings
158
Makezluname
Returned Comment Name
MYZLU01
Be returned
Parameter and from the same TTY, the same ZLU name will be
Chapter 161
Ptfind
Chapter 163
Async-signal unsafe
Async-cancel unsafe
Physical terminal table data will be placed
Pointer to a buffer into which the Zcom
Ierr != 0, then no data is moved into zptt
Len Length in bytes of zptt buffer
166
Chapter 167
Zclos
Zclos
Zcntl
Zmoderpterrs
Zmodenowait
Zmodedefstatus
Zmoderpterrswbuf
Multi-protocol ACC Programmers’ Reference Guide
Mhp
Return
Rstat
Param
Rtyp
174
Chapter 175
176
Chapter 177
Zcomerror
Not a cancellation
Point
Err Error number
Found, it uses the default message file default.msg
File zerrmsg.msg in /opt/acc/msg ZCOMMESSAGEPATH. If not
180
Zcomlname
Async-cancel safe
Zcomlog3x
Zcomlog
184
Zcomatchar
Zcomatzerror
Zcomatuchar
Zcomatsint
186
Chapter 187
ACC Programmers Reference Guide under ‘ZCOM Status Message
Zcomstatus
Chapter 189
Zconfig
Node Destination node
Cdata
Rdata
Return Param Response data
Chapter 193
Zcomzconfigsys
Zcomzconfigcntl
Zcomzconfigcard
Zcomzconfigport
DSC Control
Zcomsetypereconfig
Header.tag1 Header.tag2 Any values
Configuration Data header.config
No specific response data or error
Header.config
Data.setctl.cfgclass
Header.tag1 Header.tag2
Data.sysret.error
Data.setsys.sysname
Data.setsys.qlimit
Chapter 199
Header.tag1 Header.tag2 Any values Data.setcard.iftno
Link an interface to different hardware
Data.setcard.itype
Data.setcard.fname
Data.cardret.iftno
Data.cardret.error
Data.setport.portno
Data.setport.rcode
Data.setport.spare
Value Operating mode
Value Sync mode select
Data.setport.cnfg
Value Encoding modes
No Parity
Parity select
Odd parity
Even parity
0001 300
Value Port mode
Value Rate
0000 150
Fmod
Frame mode parameter
Value Port mode 0000 Reserved
Value Other port for clock synchronization Port
Value T1 Transmit Attenuation Z7330B only 15 dB 22.5 dB
Fast link-down option
Otherwise by default there is a delay to avoid
Makes the line go down whenever loss of T1/E1
Frame synchronization is detected by the Falc
JT G.706 mode Z7330B only
Long-haul mode Z7330B only
T1/ESF performance report messages suppressed
Reduced corner frequency Z7330B only
Data.portret.status
Data.portret.iftno Data.portret.portno
Chapter 211
212
Header.action
Configuration Data
Data.setportsc.iftno
Data.setportsc.portno
Receive subch number Receive fill mask
Transmit subch number Transmit fill mask Set to
Chapter 215
Data.setportsc.ptcfg-ptinfo.subchb.spec
Set to Mode
Data.setportsc.len
Data.setportsc.qlimit
Data.portscret.status
218
Chapter 219
220
Data.setterm.daddr
Data.setterm.zaddr
Data.setterm.iftno
Data.setterm.portno
Data.setterm.ptt
Response Data data.termret.zaddr
224
Chapter 225
Zeventrcvr
Chapter 227
228
Chapter 229
Zcomsetypenode
‘C’ structure for a Zcom Event Message is shown below
Chapter 231
232
Zgetshrcvrlist Get list of current shared receivers
Zgetshrcvrlist
Is terminated by an entry with a zlu value of 0.
Type of data specified by the mode parameter. The list
Maximum number of receivers in each type of shared
Receiver list is set to ZcMAXSHAREDRCVRS currently
Chapter 235
Zinfo
Zinfo
238
Chapter 239
Zinit
Calling zinit. See zrntimer3X for more information
Default program ZLU queue limit
Initialization phase, before any threads are generated
Following fields
242
Zltmg
Error codes and their meanings
Zltmx
246
Chapter 247
Zltqueue
Usage
Appln Queue Progra Returned Nmb Label
Globa
Ccccc
250
Chapter 251
Zltstore
Zltstore
Extension area
Logical terminal table, for the storage
Chapter 255
256
Zltup
258
Chapter 259
Zluopen
Async-signal
Async-cancel
Unsafe
Unsafe Fork unsafe
262
Chapter 263
Zmapr
Zmapr
Zname
Zname
Zcom address
Chapter 269
Zopen
Chapter 271
Pflag
Name
Limit
273
Zpeek
Chapter 275
Zport
Chapter 277
Stat
For Z7200A, Z7340A and Z7400A ACC Interface cards
Cnfg Configuration data 32 bits
Ecode Sync Mode Parity Clk Baud Pmode Pmode2 = Not Used
FM1 transition = FM0 transition =
Value Parity select No Parity Odd parity Even parity
Value Rate 0000 Use Baud2 1000 19,200
PmodeValue Port mode
T1 ESF
Chapter 283
284
Chapter 285
286
Zptup
288
Zqmve
290
Chapter 291
Zqsze
Zqhdp Return param
294
Chapter 295
Zread
Chapter 297
Subsection on ‘Message Header’ in the Multiprotocol ACC
Not require the returned message header. It is described
Programmers’ Reference Guide. See the data structure
Zmhdtype in zcomsys.h for more detail
No error
Ve Zcom error code
Rstat Return status
300
Chapter 301
302
Chapter 303
Not a cancellation point
Zrntimer
Ttgen configuration file. If an unknown node number is
Means setting the timeout values for ALL remote nodes
Specified, it is rejected with error -6 Zenode
Timeout processing is activated on 1-second intervals
306
Mhp-mid.ztagw2
Zsend
308
Null may be used if the return status is not required
310
Chapter 311
Mode=0 Mode=1 Mode=2 Mode=5
Mode=8
314
Chapter 315
Zsetql
Chapter 317
318
Chapter 319
320
Zsetrcvr
322
Chapter 323
Rzap
Chapter 325
Ztimr
Chapter 327
328