HP Advanced Communications Controllers (ACC) guide

ZCOM Subsystem

ZCOM Software Overview

Subsystem as separate products. The Protocol User’s Guides provided with these products must be used in conjunction with this Programmer’s Reference Guide when writing ZCOM application programs.

Figure 1-1 Overview of ZCOM Software Structure

Application

or Utility

Program

Application

or Utility

Program

. . . . . .

Application

or Utility

Program

X.25 TCP/IP	Other high
X.25 Level3	level
X.25 Level3	protocol
Prog. Accs.

	. . . . . .	Low level
	. . . . . .	ZCOM I/F
		ZCOM I/F

ZCOM HP-UX Drivers (LDM/DAM)

ZCOM Mux Kernel

ZCOM

ZCOM

ZCOM

ZCOM

Protocol

Protocol

Protocol

.

. . . . .

Protocol

Module

Module

Module

Module

(X.25)

HP9000

System

ACC Mux I/F

Mux datacomm interface to network

14

Chapter 1

Image 14

HP Advanced Communications Controllers (ACC) manual Overview of Zcom Software Structure

Contents

ACC Programmer’s Reference Guide Page Legal Notices Page Printing History First Edition February 2004 Release Related Documentation Software Manuals 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 Message Queuing Program Message Queueing Physical Terminal Table Priorities Multiplexing Outbound Multiplexing Inbound Multiplexing Inbound Multiplexing PTZRVR=PZLU 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 Field Name Field Description Field Type Size Bytes Zcom Header StructureZcom Header Structure Hnltql HncardHnresp Hnltsl Hnidle HndpidHndsig Hnhigh Zcom Header Structure Zcom Header Structure Zcom Header Structure Zcom Header Structure Zcom Header Structure Ttgen Zcom Header Structure Qlbnam Queue Label TableQlbgrp Qlbqnb Storage Label Table Zcom Header Structure Node Entries Table Node Entries Table FLAGS.valid Stats Data StructureFLAGS.event FLAGS.status Host Link Information Structure Node Entries Table ZLU Tables Individual ZLU Data Structure zlutype ZLU Type Values Type Description ZLU Tables Field Name Field Description Size Type Bytes Logical Terminal TablesLogical Terminal Table Reserved Area Logical Terminal Table User Maintainable Area 10 Logical Terminal Table User Maintainable Area SPARE2 System Status flags Logical Terminal Tables LTINST, LTBRCH, LTWORK, Ltarea Terminal logical ID LTCWCT, LTTXCT, LTRXCT, Lterct Message and error countersLogical Status Format Ltstat Physical Terminal Tables Physical Terminal Tables System Area 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 Interface HPA Value Format Inhpa 63-32 31-2 27-18 17-1 13-12 10-6 Symbol Value hex Meaning Interface Card Status Ifstat Scheduler Event Flags Ischdl Interface Table Interface Table CARD.MMP Structure CARD.BSP Structure Interface Table Itxlstx Express Transmit List Headers Tmtail Interface Table Zcomipstattxbx Port Configuration Buffer Iportn Fmode 20 4-Channel E1/T1 ACC Card Format31-30 29-26 26-22 21-20 19-16 15-11 10-0 Port Subchannel Configuration Structure Timeslot Array Element Structure Itbs 23 Subchannel Specification Array Element Structure31-30 29-24 23-8 INV Interface Table Optional E1/T1 Tunable Parameters Bquota Response Records Response Record Format Zcomrptypebuffer Symbol Value MeaningResponse Type Field Zcomrptyperemote 100 Queue Header Free Queue Header Structure zfqhtype Qfdata Queue Header Structure zqhdtypeQlimit Qfunc Chapter 103 Symbol Value Meaning Hex Queue Flag Format Chapter 105 Data Buffer Pool Organization of Buffer Pool Chapter 107 Buffer Pool Layout when first initialized Reserved, not used Int Linkage to the next buffer. zbhdtype. See -30 and TableSystem flags length & status Uns.int Pointer to next buffer on queue 32 Buffer flags Bfflag Field Format Flag Chapter 111 MID Message HeaderMessage Header zmhdtype MRQ Message ID Header zmidtype Message Type Mstype LPR XPS PGW BFR DEF ERR Response code for message type 2 and 10 Format37 Response code for all other message types LPR Message Request Header zmrqtype Mrqcode Terminal request codes Request Value Description 118 System Event Message zeventtype Structure Nstat Node Status Change Event Fields ZcomsetypenodeNodenum Spare CFGINFO1 Dynamic Reconfiguration EventCfgclass Change in Card Status Event Zcomsetypecard Chapter 123 HPA value of this interface Long Zcom Kernel DataHPA Table Entries Reserved for future use Int Chapter 125 HPA value of I/F card Hpano Chapter 127 SYS structure Zcom system global information Name Value hex State Current Zcom system statusCurrent Zcom system status Higher Order Bits Bit Name Value Meaning Hex Debug Level Field FormatDebug Level Field Values Chapter 131 132 Zcmlock Linfo Structure FieldsZcglock Zcrlock Refcount Super IFT spinlock Zcslock Data StructureLockp Zcom C I/F Library Routines 136 Zinit Zcom library access initialization Initialization call Interface configuration calls ZLU information calls Zsend Send data buffer to ZLU ZLU Definition Man Pages Fork unsafe Cancellation pointGetdevice Chapter 143 Device table. The device table is an array Allocated memory when it is no longer neededPointer to a data structure containing the full Zdevtype elements Device file, /opt/acc/cfg/zcomdevice Multiprotocol ACC Utilities Reference Opt/acc/cfg/zcomdevice.txt Zdgen1, malloc3C Ltfind Llen ZapLaddr Ibuf Return Param Chapter 149 150 Ltqdget 152 Ltqdget 154 Ltqdput 156 Zcom error codes and their meanings Ltqdput 158 MYZLU01 MakezlunameReturned Comment Name Parameter and from the same TTY, the same ZLU name will be Be returned Chapter 161 Ptfind Chapter 163 Async-cancel unsafe Async-signal unsafe Ierr != 0, then no data is moved into zptt Pointer to a buffer into which the ZcomPhysical terminal table data will be placed Len Length in bytes of zptt buffer 166 Chapter 167 Zclos Zclos Zcntl Zmodedefstatus ZmodenowaitZmoderpterrs Zmoderpterrswbuf Mhp Multi-protocol ACC Programmers’ Reference Guide Param RstatReturn Rtyp 174 Chapter 175 176 Chapter 177 Point ZcomerrorNot a cancellation File zerrmsg.msg in /opt/acc/msg ZCOMMESSAGEPATH. If not Err Error numberFound, it uses the default message file default.msg 180 Async-cancel safe Zcomlname Zcomlog3x Zcomlog 184 Zcomatuchar ZcomatzerrorZcomatchar Zcomatsint 186 Chapter 187 Zcomstatus ACC Programmers Reference Guide under ‘ZCOM Status Message Chapter 189 Zconfig Node Destination node Return Param Response data CdataRdata Chapter 193 Zcomzconfigcard ZcomzconfigcntlZcomzconfigsys Zcomzconfigport Zcomsetypereconfig DSC Control Configuration Data header.config Header.tag1 Header.tag2 Any values Data.setctl.cfgclass No specific response data or errorHeader.config Data.setsys.sysname Data.sysret.errorHeader.tag1 Header.tag2 Data.setsys.qlimit Chapter 199 Data.setcard.itype Link an interface to different hardwareHeader.tag1 Header.tag2 Any values Data.setcard.iftno Data.setcard.fname Data.cardret.error Data.cardret.iftno Data.setport.spare Data.setport.portnoData.setport.rcode Data.setport.cnfg Value Sync mode selectValue Operating mode Value Encoding modes Odd parity Parity selectNo Parity Even parity Value Rate Value Port mode0001 300 0000 150 Frame mode parameter Fmod Value T1 Transmit Attenuation Z7330B only 15 dB 22.5 dB Value Port mode 0000 ReservedValue Other port for clock synchronization Port Makes the line go down whenever loss of T1/E1 Otherwise by default there is a delay to avoidFast link-down option Frame synchronization is detected by the Falc T1/ESF performance report messages suppressed Long-haul mode Z7330B onlyJT G.706 mode Z7330B only Reduced corner frequency Z7330B only Data.portret.iftno Data.portret.portno Data.portret.status Chapter 211 212 Data.setportsc.iftno Configuration DataHeader.action Data.setportsc.portno Transmit subch number Transmit fill mask Set to Receive subch number Receive fill mask Chapter 215 Data.setportsc.len Set to ModeData.setportsc.ptcfg-ptinfo.subchb.spec Data.setportsc.qlimit Data.portscret.status 218 Chapter 219 220 Data.setterm.iftno Data.setterm.zaddrData.setterm.daddr Data.setterm.portno Data.setterm.ptt Response Data data.termret.zaddr 224 Chapter 225 Zeventrcvr Chapter 227 228 Chapter 229 ‘C’ structure for a Zcom Event Message is shown below Zcomsetypenode Chapter 231 232 Zgetshrcvrlist Zgetshrcvrlist Get list of current shared receivers Maximum number of receivers in each type of shared Type of data specified by the mode parameter. The listIs terminated by an entry with a zlu value of 0. Receiver list is set to ZcMAXSHAREDRCVRS currently Chapter 235 Zinfo Zinfo 238 Chapter 239 Zinit Initialization phase, before any threads are generated Default program ZLU queue limitCalling zinit. See zrntimer3X for more information Following fields 242 Zltmg Error codes and their meanings Zltmx 246 Chapter 247 Zltqueue Globa Appln Queue Progra Returned Nmb LabelUsage Ccccc 250 Chapter 251 Zltstore Zltstore Logical terminal table, for the storage Extension area Chapter 255 256 Zltup 258 Chapter 259 Zluopen Unsafe Async-cancelAsync-signal Unsafe Fork unsafe 262 Chapter 263 Zmapr Zmapr Zname Zname Zcom address Chapter 269 Zopen Chapter 271 Limit PflagName 273 Zpeek Chapter 275 Zport Chapter 277 For Z7200A, Z7340A and Z7400A ACC Interface cards Stat FM1 transition = FM0 transition = Cnfg Configuration data 32 bitsEcode Sync Mode Parity Clk Baud Pmode Pmode2 = Not Used Value Parity select No Parity Odd parity Even parity PmodeValue Port mode Value Rate 0000 Use Baud2 1000 19,200 T1 ESF Chapter 283 284 Chapter 285 286 Zptup 288 Zqmve 290 Chapter 291 Zqsze Zqhdp Return param 294 Chapter 295 Zread Chapter 297 Programmers’ Reference Guide. See the data structure Not require the returned message header. It is describedSubsection on ‘Message Header’ in the Multiprotocol ACC Zmhdtype in zcomsys.h for more detail Rstat Return status No errorVe Zcom error code 300 Chapter 301 302 Chapter 303 Zrntimer Not a cancellation point Specified, it is rejected with error -6 Zenode Means setting the timeout values for ALL remote nodesTtgen configuration file. If an unknown node number is Timeout processing is activated on 1-second intervals 306 Zsend Mhp-mid.ztagw2 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