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TOPS-20 Monitor Table Descriptions
Autopatch Number 22
April 1989
This document describes the internal
tables of the TOPS-20 operating system.
This manual is a revision and replaces
TOPS-20 Monitor Table Descriptions,
order number AA-V917C-RM.
OPERATING SYSTEM: TOPS-20 Version 7.0
SOFTWARE: TOPS-20 Version 7.0
First Printing, October 1980
Revised, May 1984
Revised, April 1986
Revised, April 1989
The information in this document is subject to change without notice
and should not be construed as a commitment by Digital Equipment
Corporation. Digital Equipment Corporation assumes no responsibility
for any errors that may appear in this document.
The software described in this document is furnished under a license
and may only be used or copied in accordance with the terms of such
license.
No responsibility is assumed for the use or reliability of software on
equipment that is not supplied by Digital Equipment Corporation or its
affiliated companies.
Copyright C 1980, 1984, 1986, 1989, Digital Equipment Corporation.
All Rights Reserved.
Printed in U.S.A.
The following are trademarks of Digital Equipment Corporation:
CI DECtape LA50 SITGO-10
DDCMP DECUS LN01 TOPS-10
DEC DECwriter LN03 TOPS-20
DECmail DELNI MASSBUS TOPS-20AN
DECnet DELUA PDP UNIBUS
DECnet-VAX HSC PDP-11/24 UETP
DECserver HSC-50 PrintServer VAX
DECserver 100 KA10 PrintServer 40 VAX/VMS
DECserver 200 KI Q-bus VT50
DECsystem-10 KL10 ReGIS
DECSYSTEM-20 KS10 RSX d i g i t a l
CONTENTS
PREFACE
AA . . . . . . . . . . . . . . . . . . . . . . . . 1
AC . . . . . . . . . . . . . . . . . . . . . . . . 2
AJ . . . . . . . . . . . . . . . . . . . . . . . . 3
AK . . . . . . . . . . . . . . . . . . . . . . . . 4
ALOC1 . . . . . . . . . . . . . . . . . . . . . . . 5
ALOC2 . . . . . . . . . . . . . . . . . . . . . . . 6
BAT . . . . . . . . . . . . . . . . . . . . . . . . 7
BD . . . . . . . . . . . . . . . . . . . . . . . . 9
BP . . . . . . . . . . . . . . . . . . . . . . . 10
BR . . . . . . . . . . . . . . . . . . . . . . . 11
BTB . . . . . . . . . . . . . . . . . . . . . . . 12
BU . . . . . . . . . . . . . . . . . . . . . . . 14
BUG-HLT/CHK/INF-STORAGE-AREA . . . . . . . . . . . 16
C1 . . . . . . . . . . . . . . . . . . . . . . . 17
CA . . . . . . . . . . . . . . . . . . . . . . . 18
CB-LATSRV . . . . . . . . . . . . . . . . . . . . 19
CB-LLMOP . . . . . . . . . . . . . . . . . . . . 21
CB-SCPAR . . . . . . . . . . . . . . . . . . . . 23
CC-LATSRV . . . . . . . . . . . . . . . . . . . . 24
CC-NIPAR . . . . . . . . . . . . . . . . . . . . 25
CD . . . . . . . . . . . . . . . . . . . . . . . 28
CDB . . . . . . . . . . . . . . . . . . . . . . . 29
CDBCAD . . . . . . . . . . . . . . . . . . . . . . 32
CDR-STORAGE-AREA . . . . . . . . . . . . . . . . . 34
CDS . . . . . . . . . . . . . . . . . . . . . . . 37
CF . . . . . . . . . . . . . . . . . . . . . . . 38
CFHSHT . . . . . . . . . . . . . . . . . . . . . . 39
CFHSTS . . . . . . . . . . . . . . . . . . . . . . 40
CFNNAM . . . . . . . . . . . . . . . . . . . . . . 41
CFSHNM . . . . . . . . . . . . . . . . . . . . . . 42
CFSHST . . . . . . . . . . . . . . . . . . . . . . 43
CFSOFN . . . . . . . . . . . . . . . . . . . . . . 44
CFS RESOURCE BLOCK . . . . . . . . . . . . . . . . 45
CFSSTR . . . . . . . . . . . . . . . . . . . . . . 48
CFS VOTER MESSAGE BUFFER . . . . . . . . . . . . . 49
CH-CTERMD . . . . . . . . . . . . . . . . . . . . 51
CH-D36COM . . . . . . . . . . . . . . . . . . . . 53
CH-LLMOP . . . . . . . . . . . . . . . . . . . . 54
CHNTAB . . . . . . . . . . . . . . . . . . . . . . 55
CICMST . . . . . . . . . . . . . . . . . . . . . . 56
CIDATA . . . . . . . . . . . . . . . . . . . . . . 57
CI RELATED VARIABLES . . . . . . . . . . . . . . . 58
CLASS-SCHEDULER-STORAGE . . . . . . . . . . . . . 61
CLUHST . . . . . . . . . . . . . . . . . . . . . . 63
CLUSTS . . . . . . . . . . . . . . . . . . . . . . 64
CM . . . . . . . . . . . . . . . . . . . . . . . 65
iii
CONNECT ID FORMAT . . . . . . . . . . . . . . . . 66
CSTnX . . . . . . . . . . . . . . . . . . . . . . 67
CST0 . . . . . . . . . . . . . . . . . . . . . . . 68
CST1 . . . . . . . . . . . . . . . . . . . . . . . 70
CST2 . . . . . . . . . . . . . . . . . . . . . . . 71
CST3 . . . . . . . . . . . . . . . . . . . . . . . 73
CST5 . . . . . . . . . . . . . . . . . . . . . . . 75
CT . . . . . . . . . . . . . . . . . . . . . . . . 76
DEV`DTB . . . . . . . . . . . . . . . . . . . . . 77
DEVCH1 . . . . . . . . . . . . . . . . . . . . . . 79
DEVCH2 . . . . . . . . . . . . . . . . . . . . . . 80
DEVCHR . . . . . . . . . . . . . . . . . . . . . . 81
DEVDSP . . . . . . . . . . . . . . . . . . . . . . 82
DEVNAM . . . . . . . . . . . . . . . . . . . . . . 83
DEVUNT . . . . . . . . . . . . . . . . . . . . . . 84
DIRECTORY . . . . . . . . . . . . . . . . . . . . 85
DIRECTORY CACHE . . . . . . . . . . . . . . . . . 94
DL . . . . . . . . . . . . . . . . . . . . . . . 95
DNA PARAMETER AND COUNTER DATA BASE . . . . . . . 96
DRMBBT . . . . . . . . . . . . . . . . . . . . . . 98
DRMCNT . . . . . . . . . . . . . . . . . . . . . . 99
DSKSIZ . . . . . . . . . . . . . . . . . . . . . . 100
DSKSZ`N . . . . . . . . . . . . . . . . . . . . . 101
DSKUTP . . . . . . . . . . . . . . . . . . . . . . 102
DST . . . . . . . . . . . . . . . . . . . . . . . 103
DTE-STORAGE-AREA . . . . . . . . . . . . . . . . . 104
DTEDTV . . . . . . . . . . . . . . . . . . . . . . 115
EC . . . . . . . . . . . . . . . . . . . . . . . 116
EL . . . . . . . . . . . . . . . . . . . . . . . 117
ENQ/DEQ-LOCK-BLOCK . . . . . . . . . . . . . . . . 119
ENQ/DEQ - STORAGE AREA . . . . . . . . . . . . . . 121
EPT . . . . . . . . . . . . . . . . . . . . . . . 123
ES . . . . . . . . . . . . . . . . . . . . . . . 127
ET . . . . . . . . . . . . . . . . . . . . . . . 129
EXEC-PG-MAP-TBL . . . . . . . . . . . . . . . . . 130
FA . . . . . . . . . . . . . . . . . . . . . . . 131
FB . . . . . . . . . . . . . . . . . . . . . . . 132
FDB . . . . . . . . . . . . . . . . . . . . . . . 133
FE-STORAGE-AREA . . . . . . . . . . . . . . . . . 138
FKBSPW . . . . . . . . . . . . . . . . . . . . . . 140
FKCNO . . . . . . . . . . . . . . . . . . . . . . 141
FKINT . . . . . . . . . . . . . . . . . . . . . . 142
FKINTB . . . . . . . . . . . . . . . . . . . . . . 144
FKJOB . . . . . . . . . . . . . . . . . . . . . . 145
FKJTQ . . . . . . . . . . . . . . . . . . . . . . 146
FKNBW . . . . . . . . . . . . . . . . . . . . . . 147
FKNR . . . . . . . . . . . . . . . . . . . . . . . 148
FKPGS . . . . . . . . . . . . . . . . . . . . . . 149
FKPGST . . . . . . . . . . . . . . . . . . . . . . 150
FKPT . . . . . . . . . . . . . . . . . . . . . . . 151
FKQ1 . . . . . . . . . . . . . . . . . . . . . . . 152
iv
FKQ2 . . . . . . . . . . . . . . . . . . . . . . . 153
FKSTA2 . . . . . . . . . . . . . . . . . . . . . . 154
FKSTAT . . . . . . . . . . . . . . . . . . . . . . 155
FKSWP . . . . . . . . . . . . . . . . . . . . . . 156
FKTIME . . . . . . . . . . . . . . . . . . . . . . 157
FKWSP . . . . . . . . . . . . . . . . . . . . . . 158
FL . . . . . . . . . . . . . . . . . . . . . . . 159
FREESPACE BLOCK HEADER/TRAILER . . . . . . . . . . 160
FREESPACE DESCRIPTOR . . . . . . . . . . . . . . . 161
FREESPACE-DESCRIPTOR INDEX TABLE . . . . . . . . . 162
FREESPACE HISTORY RECORD . . . . . . . . . . . . . 163
GB . . . . . . . . . . . . . . . . . . . . . . . 164
GTOKPR . . . . . . . . . . . . . . . . . . . . . . 165
HC . . . . . . . . . . . . . . . . . . . . . . . 167
HN . . . . . . . . . . . . . . . . . . . . . . . 168
HOM . . . . . . . . . . . . . . . . . . . . . . . 170
HOME . . . . . . . . . . . . . . . . . . . . . . . 173
HOMTAB . . . . . . . . . . . . . . . . . . . . . . 174
IA . . . . . . . . . . . . . . . . . . . . . . . 175
IB . . . . . . . . . . . . . . . . . . . . . . . 176
IDXFIL . . . . . . . . . . . . . . . . . . . . . . 177
IM . . . . . . . . . . . . . . . . . . . . . . . 179
INDEX . . . . . . . . . . . . . . . . . . . . . . 180
INIDEV . . . . . . . . . . . . . . . . . . . . . . 181
INIDV1 . . . . . . . . . . . . . . . . . . . . . . 182
INIDVT . . . . . . . . . . . . . . . . . . . . . . 183
IORB . . . . . . . . . . . . . . . . . . . . . . . 186
IPCF-MESSAGE-HEADER . . . . . . . . . . . . . . . 189
IPCF-PID-HEADER . . . . . . . . . . . . . . . . . 190
IPCF-STORAGE-AREA . . . . . . . . . . . . . . . . 191
JOB AREA . . . . . . . . . . . . . . . . . . . . . 192
JOBDIR . . . . . . . . . . . . . . . . . . . . . . 193
JOBNAM . . . . . . . . . . . . . . . . . . . . . . 194
JOBPNM . . . . . . . . . . . . . . . . . . . . . . 195
JOBPT . . . . . . . . . . . . . . . . . . . . . . 196
JOBRT . . . . . . . . . . . . . . . . . . . . . . 197
JOBRTL . . . . . . . . . . . . . . . . . . . . . . 198
JSB . . . . . . . . . . . . . . . . . . . . . . . 199
KB . . . . . . . . . . . . . . . . . . . . . . . 210
KDB . . . . . . . . . . . . . . . . . . . . . . . 211
LB . . . . . . . . . . . . . . . . . . . . . . . 216
LD . . . . . . . . . . . . . . . . . . . . . . . 217
LH . . . . . . . . . . . . . . . . . . . . . . . 218
LI . . . . . . . . . . . . . . . . . . . . . . . 219
LK . . . . . . . . . . . . . . . . . . . . . . . 220
LN . . . . . . . . . . . . . . . . . . . . . . . 221
LOGICAL-NAME-DEFINITION . . . . . . . . . . . . . 222
LOGICAL-NAMES-LIST . . . . . . . . . . . . . . . . 223
LPT-STORAGE-AREA . . . . . . . . . . . . . . . . . 224
LS . . . . . . . . . . . . . . . . . . . . . . . 230
LT . . . . . . . . . . . . . . . . . . . . . . . 231
v
MB . . . . . . . . . . . . . . . . . . . . . . . 232
MD-D36PAR . . . . . . . . . . . . . . . . . . . . 233
MD-NIPAR . . . . . . . . . . . . . . . . . . . . 234
MN . . . . . . . . . . . . . . . . . . . . . . . 235
MONITOR-STATISTICS . . . . . . . . . . . . . . . . 236
MSCCID . . . . . . . . . . . . . . . . . . . . . . 239
MSCINT . . . . . . . . . . . . . . . . . . . . . . 240
MSCOLD . . . . . . . . . . . . . . . . . . . . . . 241
MSCP SERVER COMMAND HEADER . . . . . . . . . . . . 242
MSCP SERVER STORAGE . . . . . . . . . . . . . . . 244
MSCTMO . . . . . . . . . . . . . . . . . . . . . . 246
MT . . . . . . . . . . . . . . . . . . . . . . . 247
MTA-STORAGE-AREA . . . . . . . . . . . . . . . . . 248
MTCUTB . . . . . . . . . . . . . . . . . . . . . . 256
NAMUTP . . . . . . . . . . . . . . . . . . . . . . 257
NE . . . . . . . . . . . . . . . . . . . . . . . 258
NF . . . . . . . . . . . . . . . . . . . . . . . . 259
NM . . . . . . . . . . . . . . . . . . . . . . . 260
NN . . . . . . . . . . . . . . . . . . . . . . . 261
NO-SCLINK . . . . . . . . . . . . . . . . . . . . 263
NO-SCPAR . . . . . . . . . . . . . . . . . . . . 264
NR . . . . . . . . . . . . . . . . . . . . . . . 265
NT . . . . . . . . . . . . . . . . . . . . . . . 266
NTCTAB . . . . . . . . . . . . . . . . . . . . . . 268
NX . . . . . . . . . . . . . . . . . . . . . . . 269
OA . . . . . . . . . . . . . . . . . . . . . . . 271
OFNLEN . . . . . . . . . . . . . . . . . . . . . . 272
PA . . . . . . . . . . . . . . . . . . . . . . . 273
PB-PHYKNI . . . . . . . . . . . . . . . . . . . . 274
PB-SCPAR . . . . . . . . . . . . . . . . . . . . 276
PC . . . . . . . . . . . . . . . . . . . . . . . 277
PCB (PORT CONTROL BLOCK) . . . . . . . . . . . . . 278
PHYCHT . . . . . . . . . . . . . . . . . . . . . . 280
PHYUNT . . . . . . . . . . . . . . . . . . . . . . 281
PI . . . . . . . . . . . . . . . . . . . . . . . 282
PIDCNT . . . . . . . . . . . . . . . . . . . . . . 283
PIDTBL . . . . . . . . . . . . . . . . . . . . . . 284
PL . . . . . . . . . . . . . . . . . . . . . . . 285
PR-NISRV . . . . . . . . . . . . . . . . . . . . 286
PR-NIUSR . . . . . . . . . . . . . . . . . . . . 287
PRMP . . . . . . . . . . . . . . . . . . . . . . . 288
PROCESS STORAGE AREA . . . . . . . . . . . . . . . 289
PS-PHYKNI . . . . . . . . . . . . . . . . . . . . 291
PS-SCPAR . . . . . . . . . . . . . . . . . . . . 294
PSB . . . . . . . . . . . . . . . . . . . . . . . 295
PT-IPCIDV . . . . . . . . . . . . . . . . . . . . 302
PT-PHYKNI . . . . . . . . . . . . . . . . . . . . 303
PT-SCPAR . . . . . . . . . . . . . . . . . . . . 304
PTYSTS . . . . . . . . . . . . . . . . . . . . . . 305
QA . . . . . . . . . . . . . . . . . . . . . . . 306
QB . . . . . . . . . . . . . . . . . . . . . . . 307
vi
Q-BLOCK . . . . . . . . . . . . . . . . . . . . . 308
QE . . . . . . . . . . . . . . . . . . . . . . . 310
QH-D36PAR . . . . . . . . . . . . . . . . . . . . 311
QH-PHYKNI . . . . . . . . . . . . . . . . . . . . 312
QL . . . . . . . . . . . . . . . . . . . . . . . 313
QP . . . . . . . . . . . . . . . . . . . . . . . 314
RB . . . . . . . . . . . . . . . . . . . . . . . 315
RC-D36PAR . . . . . . . . . . . . . . . . . . . . 316
RC-PHYKNI . . . . . . . . . . . . . . . . . . . . 318
RD . . . . . . . . . . . . . . . . . . . . . . . 321
RES-FREE-SPACE . . . . . . . . . . . . . . . . . . 323
RI . . . . . . . . . . . . . . . . . . . . . . . 326
RIDSTS (REQUEST-ID STATUS) . . . . . . . . . . . . 327
RM . . . . . . . . . . . . . . . . . . . . . . . 328
RS . . . . . . . . . . . . . . . . . . . . . . . 329
RT . . . . . . . . . . . . . . . . . . . . . . . 330
SA . . . . . . . . . . . . . . . . . . . . . . . . 331
SB-LATSRV . . . . . . . . . . . . . . . . . . . . 333
SB-PHYKNI . . . . . . . . . . . . . . . . . . . . 335
SB-SCPAR . . . . . . . . . . . . . . . . . . . . 336
SBLIST (SYSTEM BLOCK LIST) . . . . . . . . . . . . 337
SCA CONNECTION BLOCK . . . . . . . . . . . . . . . 338
SCA BUFFER RETURNED TO CLUDGR . . . . . . . . . . 343
SCA RING BUFFER ENTRY . . . . . . . . . . . . . . 345
SCDB . . . . . . . . . . . . . . . . . . . . . . . 350
SCDBTB . . . . . . . . . . . . . . . . . . . . . . 351
SCHED-VARIABLES . . . . . . . . . . . . . . . . . 352
SCOUNT . . . . . . . . . . . . . . . . . . . . . . 357
SDB . . . . . . . . . . . . . . . . . . . . . . . 358
SG-LLINKS . . . . . . . . . . . . . . . . . . . . 361
SJ . . . . . . . . . . . . . . . . . . . . . . . 362
SL . . . . . . . . . . . . . . . . . . . . . . . 363
SN . . . . . . . . . . . . . . . . . . . . . . . 365
SNAMES . . . . . . . . . . . . . . . . . . . . . . 366
SNBLKS . . . . . . . . . . . . . . . . . . . . . . 367
SPFLTS . . . . . . . . . . . . . . . . . . . . . . 368
SPT . . . . . . . . . . . . . . . . . . . . . . . 369
SPTD . . . . . . . . . . . . . . . . . . . . . . . 371
SPTH . . . . . . . . . . . . . . . . . . . . . . . 372
SPTO . . . . . . . . . . . . . . . . . . . . . . . 374
SPTO2 . . . . . . . . . . . . . . . . . . . . . . 375
SPTO3 . . . . . . . . . . . . . . . . . . . . . . 376
SPTO4 . . . . . . . . . . . . . . . . . . . . . . 377
SS . . . . . . . . . . . . . . . . . . . . . . . 378
SSIZE . . . . . . . . . . . . . . . . . . . . . . 379
ST . . . . . . . . . . . . . . . . . . . . . . . 380
STIMES . . . . . . . . . . . . . . . . . . . . . . 381
STRTAB . . . . . . . . . . . . . . . . . . . . . . 382
SV-LLINKS . . . . . . . . . . . . . . . . . . . . 383
SV-LLMOP . . . . . . . . . . . . . . . . . . . . 384
SWAP-FREE-SPACE (NON-EXTENDED) . . . . . . . . . . 386
vii
SYNMTB . . . . . . . . . . . . . . . . . . . . . . 387
SYS-STARTUP-VECTORS . . . . . . . . . . . . . . . 388
SYSERR-STORAGE-AREA . . . . . . . . . . . . . . . 389
SYSTEM BLOCK . . . . . . . . . . . . . . . . . . . 409
TR . . . . . . . . . . . . . . . . . . . . . . . 412
TT-LINE-DYN-DATA-BLK . . . . . . . . . . . . . . . 413
TTACTL . . . . . . . . . . . . . . . . . . . . . . 418
TTBUFS . . . . . . . . . . . . . . . . . . . . . . 419
TTCSAD . . . . . . . . . . . . . . . . . . . . . . 420
TTCSTM . . . . . . . . . . . . . . . . . . . . . 421
TTSPWD . . . . . . . . . . . . . . . . . . . . . . 422
TTSTAT . . . . . . . . . . . . . . . . . . . . . . 423
TTY-STORAGE-AREA . . . . . . . . . . . . . . . . . 425
UD . . . . . . . . . . . . . . . . . . . . . . . 427
UDB . . . . . . . . . . . . . . . . . . . . . . . 428
UDIORB . . . . . . . . . . . . . . . . . . . . . . 435
UDS . . . . . . . . . . . . . . . . . . . . . . . 436
UE . . . . . . . . . . . . . . . . . . . . . . . 437
UN . . . . . . . . . . . . . . . . . . . . . . . 438
UPT . . . . . . . . . . . . . . . . . . . . . . . 440
USER-PG-MAP-TBL . . . . . . . . . . . . . . . . . 443
VANA . . . . . . . . . . . . . . . . . . . . . . . 449
VN . . . . . . . . . . . . . . . . . . . . . . . 451
VRB . . . . . . . . . . . . . . . . . . . . . . . 452
VRPA . . . . . . . . . . . . . . . . . . . . . . . 453
VRQA . . . . . . . . . . . . . . . . . . . . . . . 454
WS . . . . . . . . . . . . . . . . . . . . . . . 456
XR . . . . . . . . . . . . . . . . . . . . . . . 457
APPENDIX A LISTING BY MONITOR MODULES
viii
PREFACE
This book describes the internal TOPS-20 monitor tables. The sample
table on the following page illustrates the information presented in
the book. In addition to the tables, this book also contains one
appendix which lists in alphabetical order the names of the monitor
modules and the tables defined in each.
Change bars in the margin identify new tables and/or changes to
| existing tables. These changes are the result of software changes for
| TOPS-20 V6, V6.1, and V7.0.
ix
MONITOR TABLES
SAMPLE !This is the title of the table.
Text description of the table
Defined in: STG !This describes where either the storage is
!defined or where the symbols are defined or both
Index: Fork number !This field (optional) describes any standard
!index that may exist for the table
Format
+-------------------------------------------------------+
STRG1: | POINT1 | POINT2 |
POINT3 | description of POINT1 | description of POINT2 |
|_______________________________________________________| / \
SYM1=n | Description of contents of SYM1 | |
|_______________________________________________________|
| . | LEN
| . |
| . | |
\ . \ \ /
STRG2: | flags | *
+-------------------------------------------------------+
0 1 2 35
+-------------------------------------------------------+
STRG2: | | | |
+-------------------------------------------------------+
Symbol Bits Pointer Content
BTO 0 BT%0 System about to crash
BT1 1 BT%1 System crashing
BT235 2-35 BT2%35 Location where system crashes
notes STRG1 and 2 are actual storage locations contained in the
monitor. POINT1, 2, and 3 are pointers to words or parts of words
usually defined by a DEFSTR macro. SYML is a symbol with a specific
value (n) usually to indicate displacements. LEN is the length of a
particular section of the table. Numbers are octal except where they
indicate bit positions and where they are indicated by D or a decimal
point.
"*" indicates further information on the word is found following the
table.
x
MONITOR TABLES
AA
This is the ACCEPT call's argument block, which is used by DECnet
Session Control and NSP.
Defined in: D36PAR
Format
ACCEPT Argument Block
+------------------------------------------------------------------------+
AASCB | SCB ID for new port |
|------------------------------------------------------------------------|
AAPID | NSP's port identifier |
|------------------------------------------------------------------------|
AAFLO | Flow control type |
|------------------------------------------------------------------------|
AAGOL | Data request goal |
|------------------------------------------------------------------------|
AASIZ | Max bytes allowed in a message segment |
|------------------------------------------------------------------------|
AASCV | Session control's entry address |
+------------------------------------------------------------------------+
1
MONITOR TABLES
AC
AC is the LAT Host Access Codes portion of the Host Node (HN) data
structure. It is a bit mask that defines what groups have access to
the host. Note that the bit mask is made up of PDP-11 style 8-bit
bytes. Therefore, group zero is represented by bit 7 -- the low order
bit in the first byte.
Defined in: LATSRV
Format
ACCESS CODES
+------------------------------------------------------------------------+
ACLNG | Access code string length in bytes |
|------------------------------------------------------------------------| /\
ACCOD | Storage for 256 bit bit-mask | ^D32
\ \ \/
+------------------------------------------------------------------------+
2
MONITOR TABLES
AJ
This is the DECnet Router adjancency block -- AJ.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
AJNXT | Pointer to next adjacency block |
|------------------------------------------------------------------------|
| | AJNTY | | | | | | | AJVER | AJECO | AJCUS |
| | | AJFLA | Version of | ECO number of | Customer |
| | | | neighbor's | neighbor's | version of | *
| | | | router | router | neighbor's |
| | | | | | router |
|------------------------------------------------------------------------|
AJNAH | Adjacency's hi-order address (NI) |
|------------------------------------------------------------------------|
| AJNAL | | AJNAA [+] | AJNAN [+] |
|Low order in string format <a1,a2> | | | Adjacency's node |
| | | | number |
|------------------------------------------------------------------------|
AJRTV | Pointer to this adjacency's routing vector |
|------------------------------------------------------------------------|
AJCBP | Circuit block for this adjacency |
|------------------------------------------------------------------------|
AJBSZ | Block size requested by neighbor |
|------------------------------------------------------------------------|
AJNHT | Neighbor's hello timer |
|------------------------------------------------------------------------|
AJTLR | Time last message received from adjacency |
|------------------------------------------------------------------------|
| AJPRI | AJARE | AJMPD | |
| Routers | Routers area | MPD (reserved) | |
|priority to be | (reserved | | |
| designated | field) | | |
| router (NI) | | | |
+------------------------------------------------------------------------+
Field AJSTA (0-1) Adjacency state
For field AJFLA(6-11):
AJPH4 6 Phase 4 node
AJVRQ 7 Verification requested by remote
AJBLO 8 Blocking is requested by this node
AJRJF 9 Reject flag
AJMTA 10 No multi-cast traffic accepted
----------
[+] AJADR is a concatenation of AJNAA and AJNAN.
3
MONITOR TABLES
AK
AK is the format of the DECnet logical link ACKNUM field. This
structure is expected to be used to pull apart a value held in a
register.
Defined in: LLINKS
Format
ACKNUM
+------------------------------------------------------------------------+
| | | | AKNUM |
| | | | The ACK number, we |
| | | | know this is |
| | | |rt-justified negative | *
| | | |if high bit of byte is |
| | | | set -- see LOADE |
| | | | macro (E is as in |
| | | | HRRE). |
+------------------------------------------------------------------------+
Field AKPNT (20-20) Flag set if field is present
Field AKQAL (21-23) Qualifier
AK$QAK=0 0 is ACK
AK$QNK=1 1 is NAK
AK$CAK=2 2 is cross-sub channel ACK
AK$CNK=3 3 is cross-sub channel NAK
4
MONITOR TABLES
ALOC1
Allocation 1 Table. This non-resident table, the size of the OFN area
in SPT, is used to help enforce disk quotas for each active directory.
Defined in: STG
Index: ALOCX portion of an OFN entry in the SPT
Format
+-------------------------------------------------------+ / \
ALOC1: | ADIRN | ODIRC | |
ALCWD | Directory No. | Directory OFN Count | |
|-------------------------------------------------------| |
| . | |
| . | NOFN
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
The right half of each slot in this table contains a count of all OFNs
for files from that directory.
5
MONITOR TABLES
ALOC2
Allocation 2 Table. This non-resident table, the size of the OFN area
in SPT, is used in disk quota enforcement for each active directory.
Defined in: STG
Index: ALOCX portion of an OFN entry in the SPT
Format
+-------------------------------------------------------+ / \
| PGLFT* | |
ALOC2: | Count of Pages Left for This Directory | |
| (may be negative) | |
|-------------------------------------------------------| |
| . | NOFN
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
An alternate use for this word is
PGPTR
Pointer to CFS data base entry when CFS is used.
6
MONITOR TABLES
BAT
Bad Allocation Table. The BAT Block is one sector in length (128
words). It consists of 4 words of header, followed by data; each 2
word data entry indicates the bad spots on the disk. The BAT Block is
found on section 2 of a disk pack.
Defined in: PROLOG
Format
+-------------------------------------------------------+ --
BATNAM | SIXBIT/BAT/ | |
=0 |-------------------------------------------------------| |
BATFRE | BATFR | | |
=1 | Free blocks left | | |
|-------------------------------------------------------| |
| |9 BTHCT 17| |
| | # of pairs | | Header
| | added by | |
| | mapper | | |
|-------------------------------------------------------| |
| BTMCT | |
| # of pairs added by monitor | --
|-------------------------------------------------------| --
| Bad Block information | * |
|-------------------------------------------------------| Data
| |9 ADD27 35| Pair
| | Address of starting sector | * |
|-------------------------------------------------------| --
| . |
| . |
| . |
| . |
\ . \
|-------------------------------------------------------| --
| | |
|-------------------------------------------------------| Data
| | Pair
|-------------------------------------------------------| --
BATCOD | Unlikely code 606060 |
=176 |-------------------------------------------------------|
BATBLK | Sector number of the BAT block |
=177 +-------------------------------------------------------+
7
MONITOR TABLES
BAT (Cont.)
Data Pair 0 8 18 20 21 22 35
+-------------------------------------------------------+
word 1 | BATNB | | BTKNM | | APRNM |
|Bad Blks Cnt| |Controller#|Type| Apr Serial # |
+-------------------------------------------------------+
Bits Pointer Content
0-8 BATNB Count of Bad Blks in Pair
18-20 BTKNB Massbus Controller #
21 BADT Type field in BAT Pair
23-35 APRNM APR Serial #
word 2
Bits
18-35 ADD18 Old style disk address of
starting sector
9-35 ADD27 New style address of
starting sector
8
MONITOR TABLES
BD
BD represents the format of the Buffer Segment Descriptor (BSD) used
to describe data buffers passed to and from the NI.
Defined in: PHYKNI
|
| Format
| +------------------------------------------------------------------------+
| | | | | BDSBA |
| | | | | Phys. seg. base addr. |
| |------------------------------------------------------------------------|
BDNXA | Physical next BSD address |
|------------------------------------------------------------------------|
BDSLN | Segment length |
|------------------------------------------------------------------------|
BDRES | Reserved for software |
+------------------------------------------------------------------------+
Field BDPAC (6-7) Packing mode
9
MONITOR TABLES
BP
This table contains the byte pointer and count structure used by
DECnet. Routines DNGUBY,DNPUBY, and all related DNGUnB require a
pointer to this type of structure. All byte pointers are section
local (for the moment).
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
BPBPT | Byte pointer to user string |
|------------------------------------------------------------------------|
BPBYT | Byte count left |
+------------------------------------------------------------------------+
10
MONITOR TABLES
BR
This is the NI% jsys internal buffer descriptor block.
Defined in: NIUSR
Format
+------------------------------------------------------------------------+
BRNXT | Pointer to next BR block |
|------------------------------------------------------------------------|
| BRBSZ | BRPRO |
| Buffer size | Protocol type |
|------------------------------------------------------------------------|
| BRCP1 | BRCP2 |
| Locked core page 1 | Locked core page 2 |
|------------------------------------------------------------------------| /\
BRBFA | Buffer address (Byte pointer) | 2
\ \ \/
|------------------------------------------------------------------------|
BRBID | Buffer ID |
|------------------------------------------------------------------------|
BRSTA | Return status |
|------------------------------------------------------------------------| /\
BRDAD | Destination Ethernet address | 2
\ \ \/
|------------------------------------------------------------------------| /\
BRSAD | Source Ethernet address | 2
\ \ \/
+------------------------------------------------------------------------+
11
MONITOR TABLES
BTB
Bit Table for Disk. This table has mapped into it pointers to the
file STRNAM:<ROOT-DIRECTORY> DSKBTTBL, when pages are allocated or
deallocated from the disk unit(s) belonging to structure, STRNAM. The
bit table file as shown below indicates which pages are assigned (bits
off) and which are available (bits on).
It consists of two parts; the top half contains the number of free
pages for each cylinder in the structure and the bottom half contains
a bit map (1 bit per page) for all pages of each cylinder in the
structure.
At initialization time, the following are assigned in the bit table
file:
o All of this structure's pages that belong to the Home blocks
o All of the pages in this structure's swapping space
o Those pages pointed to by the BAT blocks
Defined in: STG
Format
+-------------------------------------------------------+
| Free Pages on Cylinder 0 |
|-------------------------------------------------------|
| Free Pages on Cylinder 1 |
|-------------------------------------------------------|
| . |
| . |
\ . \
|-------------------------------------------------------|
| Free Pages on Cylinder n |
|-------------------------------------------------------|
| | \
| | Cylinder 0
\ \ /
|-------------------------------------------------------|
| | \
| | Cylinder 1
\ \ /
|-------------------------------------------------------|
| . |
| . |
\ . \
|-------------------------------------------------------|
| | \
| | Cylinder n
\ \ /
+-------------------------------------------------------+
12
MONITOR TABLES
BTB (Cont.)
NOTE
In the bit map each cylinder starts on a word boundary
and contains as many full words as are needed for all
of its pages.
For Systems which have sectioning, the BTB table does
not hold the maps for the disk bit table file.
Rather, the monitor maps the disk bit table file for a
structure into section 4 of the monitor's address
space when it needs to allocate or deallocate disk
pages. That is, the index block of this file is the
page table pointed to by the monitor's section pointer
for section 4.
13
MONITOR TABLES
BU
The data structure BU defines a bucket in the DECnet-36 node
name/number data base.
Defined in: SCLINK
Format
+------------------------------------------------------------------------+
BUNXT | Pointer to next bucket |
|------------------------------------------------------------------------| /\
BUNO1 | | <NO.LEN*NRNOPB>
\ \ \/
+------------------------------------------------------------------------+
14
MONITOR TABLES
BUG-HLT/CHK/INF-STORAGE-AREA
BUGHLT, BUGCHK, and BUGINF Storage Area. This resident storage is
used to hold such information as the push down list, PC, ACs and
dispatch address when a BUGHLT/BUGCHK/BUGINF occurs. BUGSEB holds the
pointer to the last queued up SYSERR block. (See SYSERR-STORAGE-AREA)
Defined in: STG
Format
+-------------------------------------------------------+
BUGHLT: | 0 (PC Stored here on BUGHLT)|
|-------------------------------------------------------|
| | JRST BUGH0 |
| |-------------------------------------------------------|
| XBUGHL: | Indirect Word for BUGHLTs |
| |-------------------------------------------------------|
| SVVEXM: | Save Valid Examine in BUGTYO |
| |-------------------------------------------------------|
| BUGLCK: | Lock on BUGxxx Routines |
| |-------------------------------------------------------|
| BUGCHK: | 0 (PC Stored here on BUGCHK)|
| |-------------------------------------------------------|
| | JRST BUGC0 |
| |-------------------------------------------------------|
| XBGCCH: | MSEC1,,BGCCHK |
| |-------------------------------------------------------|
| BUGINF: | 0 (PC Stored here on BUGINF)|
| |-------------------------------------------------------|
| | JRST BUGI0 |
| |-------------------------------------------------------|
| XBGCIN: | MSEC1,,BGCINF |
| |-------------------------------------------------------|
| BUGACS: | | / \
| \ ACs Saved on a BUGHLT \ # of
| \ (Contents of ACs at time of BUGHLT) \ ACs
| |-------------------------------------------------------| \ /
| BUGACU: | Place to Store Previous | / \
| \ Context ACs \ # of
| \ \ ACs
| |-------------------------------------------------------| \ /
| BUGPDL: | Push Down List | / \
| \ \ BUGPLN
| \ \ \ /
| |-------------------------------------------------------|
| BUGCNT: | Count of BUG Blocks in SYSERR Queue |
| | (Maximum of BUGMAX=20) |
| |-------------------------------------------------------|
| BUGNUM: | Number of BUGCHK/INFs since STARTUP |
15
MONITOR TABLES
BUG-HLT/CHK/INF-STORAGE-AREA (Cont.)
|-------------------------------------------------------|
BUGSEB: | Ptr to last queued up SYSERR Block |
| due to a BUGHLT/CHK/INF |
|-------------------------------------------------------|
BUGP1: | Temp Storage for BUGSTO Routine |
|-------------------------------------------------------|
BUGP2: | Temp Storage for BUGSTO Routine |
|-------------------------------------------------------|
BUGP3: | Temp Storage for BUGSTO Routine |
|-------------------------------------------------------|
BUGTMS: | Time to Store Next BUGTIM |
| (Length of Interval Is BUGINT = 5 min) |
|-------------------------------------------------------|/ \
| BUGTIM: | ASCII Time & Date Stored for BUGHLT | 4
| |-------------------------------------------------------|\ /
PISAV: | CONI PI at time of BUGHLT |
|-------------------------------------------------------|
PISVI: | Temp Copy of PISAV before |
| BUGLCK Acquired |
+-------------------------------------------------------+
16
MONITOR TABLES
C1
C1 is the format of the NI Read and Read/Clear Counters command.
Defined in: PHYKNI
Format
+------------------------------------------------------------------------+
C1RID | Request ID |
|------------------------------------------------------------------------|
C1PID | Process ID |
|------------------------------------------------------------------------|
C1BFA | Buffer address |
|------------------------------------------------------------------------|
C1SPI | Secondary portal ID |
|------------------------------------------------------------------------|
| | | C1FNC |
*| | | Function code |
+------------------------------------------------------------------------+
Field C1ZRO (0-0) Indicates counters should be zeroed
17
MONITOR TABLES
CA
This table contains field definitions for the CTERM character
attributes portion of the CTERM Characteristics Message.
Defined in: CTERMD
Format
Character attribute structure - right justified
+------------------------------------------------------------------------+
| | | | | | | |
| | | | | | | | *
+------------------------------------------------------------------------+
Field CAXXX (28-28) (Reserved Flag)
Field CASCF (29-29) Special Char Function (For O,R,U,V,W,X,DEL)
Field CACEC (30-31) Control Char Echo
.CACCX=0 No Echo
.CACCI=1 Image Echo
.CACCS=2 Standard Echo
.CACCB=3 Standard, then Image Echo
Field CADIS (32-32) Discard output if CLEAR OOB
Field CAINC (33-33) Include immed. HELLO OOB in input stream
Field CAOOB (34-35) Out of band handling
| .CAOOX=0 Not out of band
| .CAOOI=1 Immediate clear
| .CAOOD=2 Deferred clear
| .CAOOH=3 Immediate hello
18
MONITOR TABLES
CB-LATSRV
CB is the LAT circuit block data structure. There is one circuit
block for each LAT virtual circuit created since the last system
startup. There can be up to HNMXC connect blocks allocated at one
time. If that threshold has been reached when attempting to open a
new virtual circuit, the monitor reuses an inactive connect block if
any are available. Connect blocks are chained together; HN locations
HNQAC and HNQIC contain pointers to the first and last entries on the
active circuit (HNQAC) and inactive circuit (HNQIC) queues.
Defined in: LATSRV
Format
CIRCUIT BLOCK
+------------------------------------------------------------------------+ /\
CBLNK | Queue Link words (must be first words) | 2
\ \ \/
|------------------------------------------------------------------------|
| CBRID | CBLID |
| Circuit handle assigned by the | Local circuit index |
| remote | |
|------------------------------------------------------------------------|
* | | | | | CBCSB |
| | | Count since balanced |
|------------------------------------------------------------------------|
| CBSDC | CBTSQ |
| Number of slots with data waiting | Next transmit sequence number |
|------------------------------------------------------------------------|
| CBRSQ | CBLRA |
| Next expected receive sequence | Sequence number of last message |
| number | ack'd by remote node |
|------------------------------------------------------------------------|
CBTIM | Current value of circuit timer |
|------------------------------------------------------------------------|
| | CBRTC | CBKAV |
| | Current retransmit count | 2* Server Keep-alive |
| |------------------------------------------------------------------------|
CBKAT | TODCLK last time message receieved from server |
|------------------------------------------------------------------------|
| CBQUA | CBERR |
| Circuit quality | Reason code for last time circuit |
| | stopped |
|------------------------------------------------------------------------|
| CBDLL | |
| Number of transmit buffers in the | |
| DLL | |
19
MONITOR TABLES
CB-LATSRV (Cont.)
|------------------------------------------------------------------------| /\
CBXBQ | Queue of free transmit buffers | 2
\ \ \/
|------------------------------------------------------------------------| /\
CBAKQ | Unacknowledged queue header | 2
\ \ \/
|------------------------------------------------------------------------| /\
CBSBQ | Circuit slot queue | 2
\ \ \/
|------------------------------------------------------------------------| /\
CBDNI | NI address of remote server | 2
\ \ \/
|------------------------------------------------------------------------|
| CBMTF | CBRPV |
| Maximum transmit frame size for | Remote protocol version and ECO |
| circuit | |
|------------------------------------------------------------------------|
| CBMSL | CBNBF |
| Maximum slots allowed by remote | Additional transmit buffers |
| | allowed by remote |
|------------------------------------------------------------------------|
| CBCTI | CBKTI |
| Value of remote's circuit timer |Value of remote's keep-alive timer |
|------------------------------------------------------------------------|
| CBPTC | CBSTA |
| Product type code for remote node | Virtual circuit state |
|------------------------------------------------------------------------|
| CBNUM | CBRSC |
| Remote's system number | Remote's system name count |
|------------------------------------------------------------------------|
| CBRLC | |
| Remote's location text count | |
|------------------------------------------------------------------------| /\
CBSNM | Remote's system name | <<ML.SNM+4>/5>
\ \ \/
|------------------------------------------------------------------------| /\
CBLOC | Remote's location string | <<ML.LOC+4>/5>
\ \ \/
+------------------------------------------------------------------------+
For field CBFLG(0-2):
CBRRF 0 Reply requested flag
CBMRS 1 Must reply soon flag
CBMRN 2 Must reply now flag
20
MONITOR TABLES
CB-LLMOP
DECnet counters block.
Defined in: LLMOP
Format
+------------------------------------------------------------------------+
CBID | Requester ID for this block |
|------------------------------------------------------------------------|
CBBR | Bytes received |
|------------------------------------------------------------------------|
CBBX | Bytes transmitted |
|------------------------------------------------------------------------|
CBFR | Frames received |
|------------------------------------------------------------------------|
CBFX | Frames transmitted |
|------------------------------------------------------------------------|
CBMCB | Multicast bytes received |
|------------------------------------------------------------------------|
CBMCF | Multicast frames received |
|------------------------------------------------------------------------|
CBFXD | Frames xmitted, initially deferred |
|------------------------------------------------------------------------|
CBFXS | Frames xmitted, single collision |
|------------------------------------------------------------------------|
CBFXM | Frames xmitted, multiple collisions |
|------------------------------------------------------------------------|
CBXF | Transmit failures |
|------------------------------------------------------------------------|
CBXFM | Transmit failure bit MASK |
|------------------------------------------------------------------------|
CBCDF | Carrier detect check failed |
|------------------------------------------------------------------------|
CBRF | Receive failures |
|------------------------------------------------------------------------|
CBRFM | Receive failure bit mask |
|------------------------------------------------------------------------|
CBDUN | Discarded unknown |
|------------------------------------------------------------------------|
CBD01 | Discarded position 1 |
|------------------------------------------------------------------------|
CBD02 | Discarded position 2 |
|------------------------------------------------------------------------|
CBD03 | Discarded position 3 |
|------------------------------------------------------------------------|
CBD04 | Discarded position 4 |
|------------------------------------------------------------------------|
CBD05 | Discarded position 5 |
21
MONITOR TABLES
CB-LLMOP (Cont.)
|------------------------------------------------------------------------|
CBD06 | Discarded position 6 |
|------------------------------------------------------------------------|
CBD07 | Discarded position 7 |
|------------------------------------------------------------------------|
CBD08 | Discarded position 8 |
|------------------------------------------------------------------------|
CBD09 | Discarded position 9 |
|------------------------------------------------------------------------|
CBD10 | Discarded position 10 |
|------------------------------------------------------------------------|
CBD11 | Discarded position 11 |
|------------------------------------------------------------------------|
CBD12 | Discarded position 12 |
|------------------------------------------------------------------------|
CBD13 | Discarded position 13 |
|------------------------------------------------------------------------|
CBD14 | Discarded position 14 |
|------------------------------------------------------------------------|
CBD15 | Discarded position 15 |
|------------------------------------------------------------------------|
CBD16 | Discarded position 16 |
|------------------------------------------------------------------------|
CBFBE | Free buffer list empty |
|------------------------------------------------------------------------|
CBSBU | System buffer unavailable |
|------------------------------------------------------------------------|
CBUBU | User buffer unavailable |
|------------------------------------------------------------------------|
CBUFD | Unrecognized frame dest |
|------------------------------------------------------------------------|
CBXXX | This word actually reserved for ucode |
|------------------------------------------------------------------------|
CBUNI | Portal ID |
+------------------------------------------------------------------------+
22
MONITOR TABLES
CB-SCPAR
The DECnet-36 Connect Block is used to describe the information
present in the NSP connect initiate message.
Defined in: SCPAR
Format
The Internal Connect Block
+------------------------------------------------------------------------+
CBNUM | Node number |
|------------------------------------------------------------------------|
CBCIR | Loopback circuit ID |
|------------------------------------------------------------------------| /\
CBDST | Destination end user name | PB.LEN
\ \ \/
|------------------------------------------------------------------------| /\
CBSRC | Source end user name | PB.LEN
\ \ \/
|------------------------------------------------------------------------| /\
CBUID | Source user identification | <<^D39+3>/4>
\ \ \/
|------------------------------------------------------------------------| /\
CBPSW | Access verification password | <<^D39+3>/4>
\ \ \/
|------------------------------------------------------------------------| /\
CBACC | Account data | <<^D39+3>/4>
\ \ \/
|------------------------------------------------------------------------| /\
CBUDA | End user connect data | <<^D16+3>/4>
\ \ \/
|------------------------------------------------------------------------|
| CBUCT | CBPCT |
| User ID byte count | Password byte count |
|------------------------------------------------------------------------|
| CBACT | CBCCT |
| Account data byte count | User connect data count |
+------------------------------------------------------------------------+
23
MONITOR TABLES
CC-LATSRV
CC is the LAT circuit counters block. This data structure is part of
the Circuit Block (CB) data structure.
Defined in: LATSRV
Format
CIRCUIT COUNTERS
+------------------------------------------------------------------------+
CCRCV | Messages received |
|------------------------------------------------------------------------|
CCXMT | Messages transmitted |
|------------------------------------------------------------------------|
CCRTR | Messages retransmitted |
|------------------------------------------------------------------------|
CCSEQ | Receive message sequence errors |
|------------------------------------------------------------------------|
CCIMR | Illegal messages received |
|------------------------------------------------------------------------|
CCISR | Illegal slots received |
|------------------------------------------------------------------------|
CCRES | Resource errors |
|------------------------------------------------------------------------|
CCMSK | Illegal message error mask |
+------------------------------------------------------------------------+
24
MONITOR TABLES
CC-NIPAR
CC is the read channel counters block. There are two words in the
table for each entry. CC is used by NTCTRS for the SHOW COUNTERS and
SHOW and ZERO COUNTERS network management functions.
Defined in: NIPAR
Format
+------------------------------------------------------------------------+
| Network management data |
| |
|------------------------------------------------------------------------|
CCSLZ | Seconds since last zeroed |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCBYR | Bytes received |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCBYS | Bytes sent |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCDGR | Datagrams received |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCDGS | Datagrams sent |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCMBR | Multicast bytes received |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCMDR | Multicast datagrams received |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCDSD | Datagrams sent, initially deferred |
25
MONITOR TABLES
CC-NIPAR (Cont.)
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCDS1 | Datagrams sent, single collision |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCDSM | Datagrams sent multiple collisions |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCSF | Send failures |
|------------------------------------------------------------------------|
CCSFM | Send failure bit mask | *
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCRF | Receive failure |
|------------------------------------------------------------------------|
CCRFM | Receive failure bit mask | *
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCUFD | Unrecognized frame destination |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCDOV | Data overrun |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCSBU | System buffer unavailable |
|------------------------------------------------------------------------|
| Network management data |
| |
|------------------------------------------------------------------------|
CCUBU | User buffer unavailable |
+------------------------------------------------------------------------+
26
MONITOR TABLES
CC-NIPAR (Cont.)
0 23 24 25 26 27 28 29 30 31 32 35
+---------------------------------------------------------------+
CCSFM | | | | | | | | | | |
+---------------------------------------------------------------+
Symbol Bit Contents
CCLOC 24 Loss of carrier
CCXBP 25 Xmit buffer parity error
CCRFD 26 Remote failure to defer
CCXFL 27 Xmitted frame too long
CCOC 28 Open circuit
CCSC 29 Short circuit
CCCF 30 Collision detect check failed
CCEXC 31 Excessive collisions
0 26 27 28 29 30 31 32 35
+---------------------------------------------------------------+
CCRFM | | | | | | | |
+---------------------------------------------------------------+
Symbol Bit Contents
CCFLE 27 Free list parity error
CCNFB 28 No free buffers
CCFTL 29 Frame too long
CCFER 30 Framing error
CCBCE 31 Block check error
27
MONITOR TABLES
CD
This is the DECnet remote console command data area; the data buffer
is supplied by the user.
Defined in: LLMOP
Format
Remote Console Command Data Output MSD
+------------------------------------------------------------------------+ /\
CDMSD | | MD.LEN
\ \ \/
+------------------------------------------------------------------------+
28
MONITOR TABLES
CDB
Channel Data Block. This table, one per channel, contains channel
dependent instructions and data, pointers to the units (that is, UDBs)
belonging to the channel and information about the currently active
unit. When the channel interrupts, control passes (by way of a JSP
instruction) to CDBINT. The CDB address is stored in AC, P1, and the
principal analysis routine, PHYINT, is called.
Defined in: PHYPAR
Format
+-------------------------------------------------------+
CDBINT | 0(2-word PC stored on interrupt)|
|-------------------------------------------------------|
-5 | 0 |
|-------------------------------------------------------|
-4 | (Flags) 0 |
|-------------------------------------------------------|
-3 | 0,, .+1 |
|-------------------------------------------------------|
-2 | MOVEM P1, .+2+CDBSVQ |
|-------------------------------------------------------|
-1 | JSP P1, PHYINT |
|-------------------------------------------------------|
CDBSTS=0| Status and Configuration Information | *
|-------------------------------------------------------|
CDBMBW=1| Memory Bandwidth Scheduling Information |
|-------------------------------------------------------|
CDBODT | Overdue Timer when Data Transfer Active |
|-------------------------------------------------------|
CDBICP | EXEC Virtual Adrs (EPT Adrs) of |
| Interrupt Vector,, Data Logout Area |
|-------------------------------------------------------|
CDBIUN | Initial AOBJN Pointer to UDB Table |
|-------------------------------------------------------|
CDBCUN | Current AOBJN Pointer to UDB Table |
|-------------------------------------------------------|
CDBDSP | Unit Utilities Dispatch | Main Entry Dispatch |
| | (Channel Dispatch Table) | *
|-------------------------------------------------------|
CDBFCT | Fairness Count for Latency |
|-------------------------------------------------------|
CDBPAR | Channel Memory Parity Errors |
|-------------------------------------------------------|
CDBNXM | Channel NXMs |
|-------------------------------------------------------|
CDBXFR | Currently Transferring UDB |
|-------------------------------------------------------|
CDBCCL \ Channel Command List (3 words) \
29
MONITOR TABLES
CDB (Cont.)
|-------------------------------------------------------|
| | |
| CDBUDB | KDB or UDB Table (16 words) |
| \ \
|-------------------------------------------------------|
CDBSVQ | P1 Saved Here on Vector Interrupt Entry |
|-------------------------------------------------------|
CDBJEN | BLT 17, 17 (Interrupt Dismiss) |
|-------------------------------------------------------|
| DATA0 RH, CDBRST |
|-------------------------------------------------------|
| XJEN CDBINT |
|-------------------------------------------------------|
CDBRST | Location Used by CDBJEN |
|-------------------------------------------------------|
CDBCNI | Channel CONI at Start of Interrupt |
|-------------------------------------------------------|
CDBONR | Fork Who Has Channel in Maint. Mode |
|-------------------------------------------------------|
CDBADR | Number of This Channel (CHNTAB index) |
|-------------------------------------------------------|
CDBCS0 | Channel Status 0 at Error |
|-------------------------------------------------------|
CDBCS1 | Channel Status 1 |
|-------------------------------------------------------|
CDBCS2 | Channel Status 2 |
|-------------------------------------------------------|
CDBCC1 | First CCW |
|-------------------------------------------------------|
CDBCC2 | Second CCW |
|-------------------------------------------------------|
CDBOVR | Number of Overruns |
|-------------------------------------------------------|
CDBICR | Initial STCR When Device Started |
|-------------------------------------------------------|
CDBCL2 \ Alternate CCW List (3 words) \
|-------------------------------------------------------|
CDBIRB | IORB to start transfer for |
|-------------------------------------------------------|
CDBLUN | Last UDB which did transfer or positioning |
|-------------------------------------------------------|
CDBCAD | CCW for first command |
|-------------------------------------------------------|
| CCW for second command |
|-------------------------------------------------------|
CDBDDP \ CDB Device Dependent Block \
\ \
\ \
| | *
| |
+-------------------------------------------------------+
30
MONITOR TABLES
CDB (Cont.)
|
| 0 1 2 3 4 5 6 7 8 9 10 11 12 25 26 28 29 35
| +-------------------------------------------------------+
| CDBSTS | | | | | | | | | | | | | | | PIA | TYPE |
| +-------------------------------------------------------+
Symbol Bits Content
CS.OFL 0 Offline
CS.AC1 1 Primary command active
CS.AC2 2 Secondary command active
CS.MAI 3 Channel is in maint. mode
CS.MRQ 4 Maint. mode requested for a unit
CS.ERC 5 Error recovery in progress
CS.STK 6 Channel Support, Command Stacking
CS.ACL 7 Alternate CCW List is Current
CS.CWP 8 Channel write parity error detected on
this channel
CS.CIP 9 This is a CI port channel
CS.DEN 10 (CI port) DIAG TO TAKE
CHANNEL is enabled
| CS.NIP 12 This is an NI port channel
| 26-28 PIA field
| 29-35 Channel type field
CDBDSP
See Tables, UDS and CDS
CDBDDP
CDB Device Dependent Block for the RH20 Controller
|
| Defined in: PHYH2
|
| CDBDDP= +-------------------------------------------------------+
| RH2CNI | CONI RH2, T1 |
| |-------------------------------------------------------|
| RH2CNO | CONO RH2, T2 |
| |-------------------------------------------------------|
| RH2DTI | DATAI RH2, T1 |
| |-------------------------------------------------------|
| RH2DTO | DATAO RH2, T2 |
| +-------------------------------------------------------+
31
MONITOR TABLES
CDBCAD
This is the CDB Device Dependent Block for the CI or NI.
| Defined in: PHYPAR
0 5 6 17 18 36
CDBCAD= +--------------------------------------------------------+
CDBFG | CFSTA | | CSLDF | CSDMF |
+--------------------------------------------------------+
CFSTA
States of the Port:
Symbol Port States Port-state description
CHNUNK 0 Unknown (system startup)
CHNSTP 1 Stopped (and needs to be restarted)
CHNNRL 2 Needs to have microcode reloaded
CHNRIP 3 Microcode reload in progress
CHNNDM 4 Needs to have dump taken
CHNDIP 5 Dump in progress
CHNMAI 6 Maintenance mode (owned by diagnostic)
CHNDED 7 Dead (we are not trying to restart it)
CHNRUN 10 Running
CHNRLC 11 Microcode reload complete
CHNDMC 12 Microcode dump complete
CSLDF Last fork that loaded the port's microcode
CSDMF Last fork that dumped the port's microcode
0 1 14 15 17 18 35
CDBVER= +---------------------------------------------------------+
CDBCAD+1 | | | CDCHN | CDVER |
+---------------------------------------------------------+
Symbol Bits Contents
CDPRT 0 Port; 0 = CI; 1 = NI
CDCHN 15-17 RH20 channel number
CDVER 18-35 Microcode version number
32
MONITOR TABLES
CDBCAD (Cont.)
| +------------------------------------------------------------+
| CDBLGO= | Logout Word 0 |
| CDBCC1 | |
| |------------------------------------------------------------|
| CDBLG1= | Logout Word 2 |
| CDBCC2 | |
| |------------------------------------------------------------|
| CDBLG2= | Logout Word 3 |
| CDBICR | |
| |------------------------------------------------------------|
| CDBQRQ= | Non-0 if had to requeue a request |
| CDBRST | |
| |------------------------------------------------------------|
| CDBCTR= | Monotonic number,,Fork which owns counters |
| CDBCL2 | |
| |------------------------------------------------------------|
| CDBFQE= | Message,,datagram free queue error count |
| CDBCL2+1| |
| |------------------------------------------------------------|
| CDBECW= | CCW from PCB at error |
| CDBCL2+2| |
| +------------------------------------------------------------+
33
MONITOR TABLES
CDR-STORAGE-AREA
Card Readers (Physical) Storage Area. Most entries are CDRN words
long where CDRN equals the number of card readers on the system.
Defined in: STG
Format
+-------------------------------------------------------+ /\
CDRCT1: | Buffer Count | CDRN
\ \ \/
|-------------------------------------------------------| /\
CDRCKT: | Word for Scheduler Test | CDRN
\ \ \/
|-------------------------------------------------------| /\
CDRSTS: | Status Word |*CDRN
\ \ \/
|-------------------------------------------------------| /\
CDRST1: | Second Status Word | CDRN
\ \ \/
|-------------------------------------------------------| /\
CDRST2: | Third Status Word |*CDRN
\ \ \/
|-------------------------------------------------------| /\
CARDCT: | Count of Cards Read | CDRN
\ \ \/
|-------------------------------------------------------| /\
CARDER: | Number of "Hardware" Errors | CDRN
\ \ \/
|-------------------------------------------------------|
CDRLCK: | CDR Lock Word |
|-------------------------------------------------------|
CDRCNT: | Count of CDRs Opened |
|-------------------------------------------------------| /\ ---
CDUBAD: | Address of UBA Window | CDRN |
\ \ \/ |
|-------------------------------------------------------| /\ |
CD11A: | Address of UBA-11 Address | CDRN
\ \ \/ KS10
|-------------------------------------------------------| /\ only
CDERBF: | Error Status for Cardreader | CDRN
| | *16 |
\ \ \/ |
|-------------------------------------------------------| /\ |
CDUNIT: | Unit Number of Cardreader | CDRN |
\ \ \/ |
+-------------------------------------------------------+ ---
34
MONITOR TABLES
CDR-STORAGE-AREA (Cont.)
The Non-resident area contains:
+-------------------------------------------------------+ / \
CDRBUF: | | |
| Card Reader Buffer | 1 page
\ \ |
+-------------------------------------------------------+ \ /
0 17 8 9 20 35
+-------------------------------------------------------+
CDRSTS | CDFRK | | | CDERR |
entry | Owning Fork | | | Last Error Condition|
+-------------------------------------------------------+
Bits Pointer Content
0-17 CDFRK Owning fork
18 CDOL If one, cards in reader
19 CDBLK Waiting for a card
20-35 CDERR Last error condition
0 1 2 3 4 5 11 2 3 4 5 6 17 18 35
CDRSTS +-------------------------------------------------------+
entry | | | | | | | | | | | | |CDWRD |
+-------------------------------------------------------+
Bits Pointer Content
0 CDAII CDR opened in ASCII
1 CDATN CDR needs attention
2 CDMSG Suppress system messages
3 CDOPN CDR is open
4 CDER Error in this CDR
12 CDCNT Count of bytes now in buffer
13 CDEOF EOF button was pushed
14 CDBUF Buffer for process level
15 CDPIR Process needs interrupt
16 CDBFI Buffer for PI level
17 CDDON If one, doing a buffer by process
18-35 CDWRD Current internal storage word
35
MONITOR TABLES
CDR-STORAGE-AREA (Cont.)
0 1 2 3 4 5 6 7 11 12 17 8 9 20 35
CDRST2 +-------------------------------------------------------+
entry | | | | | | | | CDPSI | |CDSST |
+-------------------------------------------------------+
Symbol Bits Pointer Content
CD%SHA 0 CDSHA "Status has arrived" flag
1 CDMWS MTOPR is waiting for status to
arrive
CD%RLD 2 CDRLD Front end has reloaded
3 CDOFI Offline interrupt is pending
4 CDEFI End of file interrupt
already given
5-6 CDRTYP Type of card reader
7 CDEXST Existance of reader
12-17 CDPSI PSI chan. no. for on-line
transitions
20-35 CDSST Software status word
Symbol Bits Content
.DVFFE 28 Device has a
fatal, unre-
coverable error
.DVFLG 29 Error logging
info. follows
.DVFEF 30 EOF
.DVFIP 31 I/O in progress
.DVFSE 32 Software cond.
.DVFHE 33 Hardware error
.DVFOL 34 Offline
.DVFNX 35 Nonexistent device
36
MONITOR TABLES
CDS
Channel Dispatch Service Routine Table. This table contains vectored
addresses to channel dependent functions, and is given in its
generalized form. The channel dispatch table for the RH20 and RH11
begins at RH2DSP. See PHYPAR for definitions of arguments given and
returned on calls to these channel routines.
Defined in: PHYPAR
Format
+-------------------------------------------------------+
CDSINI=0 | Initialize and Build Data Structure |
|-------------------------------------------------------|
CDSSTK=1 |Stack Second Channel Command, Skip if OK(fails if RH11)|
|-------------------------------------------------------|
CDSSIO=2 | Start I/O on IORB (skip if started O.K.) |
|-------------------------------------------------------|
CDSPOS=3 | Do Positioning to Idle Unit (skips if O.K.) |
|-------------------------------------------------------|
CDSLTM=4 | Return Latency and Best Request (that is, best IORB) |
|-------------------------------------------------------|
CDSINT=5 | Interrupt Entry |
|-------------------------------------------------------|
CDSCCW=6 | Generate Single CCW Entry |
|-------------------------------------------------------|
CDSHNG=7 | Hung Reset |
|-------------------------------------------------------|
CDSRST=10| On Restart, Reset Channel and All Devices |
|-------------------------------------------------------|
CDSCHK=11| Periodic Check Entry, PIA, ... |
|-------------------------------------------------------|
CDSEXT=12| Check legality of a unit (skip if existent) |
|-------------------------------------------------------|
CDSSCA=13| Extract address from CCW entry |
+-------------------------------------------------------+
37
MONITOR TABLES
CF
This table defines the structure of the wait check tables.
Defined in: SCLINK
Format
0 1 11 12 13
+------------------------------------------------------------------------+
| | | | | CFTST | *
| | | | | Local address of tester function |
+------------------------------------------------------------------------+
Field CFIFI (0-0) The sign bit is reserved for IFIW flg
Field CFCHN (12-12) Set if a channel is req'd for this fcn
38
MONITOR TABLES
CFHSHT
This table is the CFS resource hash table and it contains the
addresses of CFS resource blocks. The hash number used to index into
the table is a combination of the root and qualifier of the resource.
Collisions are linked off of the forward pointer of each resource
block.
Defined in: STG
Index: Hash number calculated from root and qualifier of
resource
+-------------------------------------------------------+
| Address of CFS resource block | / \
|-------------------------------------------------------| |
| | |
| | |
| | |
| | |
| |
| | HSHLEN
| |
| | |
| | |
| | |
| | |
| | |
\ \ |
+-------------------------------------------------------+ \ /
39
MONITOR TABLES
CFHSTS
This table contains the status of each connection that CFS has. This
table is parallel to CFSHST.
Defined in: STG
0 17 18 35
+------------------------------------------------------+
| Connection state | Node type | * / \
| | | |
|------------------------------------------------------| |
| | |
| | |
| | |
| | |
| |
| | HSTSIZ
| |
| | |
| | |
| | |
| | |
| | |
\ \ |
+------------------------------------------------------+ \ /
Connection State:
-1 --- When connection is fully open
0 --- When connection is being opened
1B0 -- This bit is turned off when a disconnect happens and the
interlock is set.
1B17 - This bit is turned off to indicate a lack of credit.
Node Type:
-1 --- Full CFS node
0 --- Not full CFS node
40
MONITOR TABLES
CFNNAM
This table contains the node names of the processors to which CFS on
this system is connected.
Defined in: STG
+------------------------------------------------------+
\ 8-bit ASCII node name of CPU connected through CFS \ / \
\ \
|------------------------------------------------------| |
| | |
| | |
| | |
| | |
| |
| | HSTSIZ*2
| |
| | |
| | |
| | |
| | |
| | |
\ \ |
+------------------------------------------------------+ \ /
41
MONITOR TABLES
CFSHNM
This table contains the serial numbers of the processors to which CFS
on this system is connected. This table is parallel to CFSHST (where
the connect ID can be found for the connection).
Defined in: STG
+------------------------------------------------------+
| Processor serial number of CPU connected through CFS | / \
|------------------------------------------------------| |
| | |
| | |
| | |
| | |
| |
| | HSTSIZ
| |
| | |
| | |
| | |
| | |
| | |
\ \ |
+------------------------------------------------------+ \ /
42
MONITOR TABLES
CFSHST
This table contains the connection ID for each connection that CFS
has. The number of connections that CFS currently has is kept in
location CFSHCT. CFSHCM contains the count of full voting hosts.
Defined in: STG
+------------------------------------------------------+
| CID of connection or -1 if this is a listener | / \
|------------------------------------------------------| |
| | |
| | |
| | |
| | |
| |
| | HSTSIZ
| |
| | |
| | |
| | |
| | |
| | |
\ \ |
+------------------------------------------------------+ \ /
43
MONITOR TABLES
CFSOFN
This table, indexed by OFN, contains the address of the CFS resource
block which describes this system's access to that OFN.
Defined in: STG
Index: OFN
+------------------------------------------------------+
| Address of CFS resource block describing OFN | / \
|------------------------------------------------------| |
| | |
| | |
| | |
| | |
| |
| | NOFN
| |
| | |
| | |
| | |
| | |
| | |
\ \ |
+------------------------------------------------------+ \ /
44
MONITOR TABLES
CFS RESOURCE BLOCK
This is the format of the CFS resource block. This block fully
describes a resource known to CFS. The root and qualifier uniquely
describe the resource. The base address of the hash table (which
contains these resource blocks) is contained in CFHSHT.
| Defined in: CFSPAR
+-------------------------------------------------------+
HSHLNK=0 | Link to next resource block |
|-------------------------------------------------------|
HSHROT=1 | Root |
|-------------------------------------------------------|
HSHQAL=2 | Qualifier |
|-------------------------------------------------------|
HSHTIM=3 | Time stamp when the resource was granted |
|-------------------------------------------------------|
HSFLAG=4 | Flags for resource |*
|-------------------------------------------------------|
HSHCOD=5 | Unique code used for ID |
|-------------------------------------------------------|
HSHPST=6 |Post address for when resource is released (call-back) |
|-------------------------------------------------------|
| 11 | 17 | |
HSHVWD=7 | HSHLKF |HSHVCT | HSHUNQ |
| Lock field |Votes in | Vote code |
|-------------------------------------------------------|
HSHVRW=10 | | HSHDRC |*
| Reserved | Denial reason code |
|-------------------------------------------------------|
HSHNBT=11 | Node bit table (nodes to contact upon release) |
|-------------------------------------------------------|
HSHRET=12 | Return address used for removal (SHTADD or LNGADD) |
|-------------------------------------------------------|
HSHDVD=13 | HSHRHN | HSHVVL |
| Dest port number of commit| Vote code |
|-------------------------------------------------------|
HSHMSK=14 | HSHDLY | HSHFRK |
| Delay mask | Owning fork |
|-------------------------------------------------------|
HSHOPT=15 | Optional data from vote |
|-------------------------------------------------------|
HSHOP1=16 | Transaction number for optional data |
|-------------------------------------------------------|
HSHOKV=17 | Call-back routine for when a vote is OKed |
|-------------------------------------------------------|
HSHCDA=20 | Call-back routine for optional data in vote |
|-------------------------------------------------------|
HSHFCT=21 | Fairness timer |
45
MONITOR TABLES
CFS RESOURCE BLOCK (Cont.)
|-------------------------------------------------------|
HSHWTM=22 | Vote retry time |
|-------------------------------------------------------|
HSHBKP=23 | Back pointer |
|-------------------------------------------------------|
HSHBTT=25 | First word of hash bit table (for directory locks) |
|-------------------------------------------------------|
\ \
HSHDRI \ Additional words for hash bit table \
\ \
+-------------------------------------------------------+
+-------------------------------------------------------+
HSFLAG=4 | Flags for resource |
|-------------------------------------------------------|
Contents of HSFLAG
Symbol Bits Meaning
HSHWVT 0 If on, we are voting
HSHYES 1 Yes/No vote (1 if anyone said no)
HSHTYP 2-5 Type of entry
.HTPLH=0 Place-holder entry
.HTOAD=1 Owned for full sharing
.HTOSH=2 Owned Read-Only shared
.HTOEX=3 Owned exclusively
.HTOPM=4 Owned for Promiscous read
HSHTWF 6 "Token" wait flag
HSHRTY 7 Retry now bit
HSHLSG 8 Entry being released
HSHVRS 9 Vote restart flag
HSHLOS 10 Long/Short flag (1 if block is long)
HSHUGD 11 Voting for an upgrade
HSHODA 12 Optional data valid
HSHKPH 13 Don't purge this entry
HSHVTP 14-17 Type we are voting on
HSHDWT 18 If here, waiting for delay to be up
HSVUC 19 Bit to indicate vote must include HSHCOD
HSHLCL 20 Local exclusive
HSHRFF 21 For tokens only
HSHAVT 22 Vote on all nodes, even reduced CFS nodes
HSHBTF 23 If set, this is a bit-table file
HSHCNT 24-35 Count of sharers
46
MONITOR TABLES
CFS RESOURCE BLOCK (Cont.)
|-------------------------------------------------------|
HSHVRW=10 | | HSHDRC |
| Reserved | Denial reason code |
|-------------------------------------------------------|
Contents of field HSHDRC
Symbol Value Meaning
.CDDWT 1 We are in VOTDWT
.CDVUC 2 HSHCODs are unequal
.CDYUX 3 We are voting, HSHYES set, we have .HTOEX
.CDYUN 4 We are voting, HSHYES set, unequal access
.CDVDL 5 We are voting, HSHDLY set
.CDVLN 6 We are voting, tie, our serial bigger
.CDVUX 7 We are voting, tie, HSHUGD set, he wants .HTOEX
.CDVUN 10 We are voting, tie, HSHUGD set, unequal access
.CDOCT 11 We own resource, conflicting access, HSHCNT set
.CDOFC 12 We own resource, conflicting access, HSHFCT valid
47
MONITOR TABLES
CFSSTR
This table, indexed by structure number, contains the transaction
number for the structure free count of each structure.
Defined in: STG
Index: Structure number
+------------------------------------------------------+
| Transaction number for structure free count | / \
|------------------------------------------------------| |
| | |
| | |
| | |
| | |
| |
| | STRN
| |
| | |
| | |
| | |
| | |
| | |
\ \ |
+------------------------------------------------------+ \ /
48
MONITOR TABLES
CFS VOTER MESSAGE BUFFER
This is the format of the text area of the message packet sent by
CFS upon a vote request or reply. It does not include the SCA
header, which appears above the first word of the text area
(SCALEN).
Defined in: CFSSRV
+-------------------------------------------------------+
SCALEN=11 | CFFLG | CFCOD | CFUNQ |
| Flags | Opcode | Unique code |*
|-------------------------------------------------------|
CFROT=12 | Root |
|-------------------------------------------------------|
CFQAL=13 | Qualifier |
|-------------------------------------------------------|
CFTYP=14 | Access required or answer |
|-------------------------------------------------------|
CFDAT=15 | Optional data (OFNLEN or retry time) |
|-------------------------------------------------------|
CFDT1=16 | Transaction number for optional data |
|-------------------------------------------------------|
CFDST0=17 | Structure free count in bit table |
|-------------------------------------------------------|
CFDST1=20 | Transaction number for structure free count |
|-------------------------------------------------------|
CFVGRD=21 | CFGWD | CFDRC |
| Guard word (for debugging)| Denial reason code |
+-------------------------------------------------------+
+-------------------------------------------------------+
SCALEN=11 | CFFLG | CFCOD | CFUNQ |
| Flags | Opcode | Unique code |
+-------------------------------------------------------+
Contents of FLAGS field
Symbol Bits Meaning
CFODA 0 Optional data present
CFVUC 1 Vote to include HSHCOD
49
MONITOR TABLES
CFS VOTER MESSAGE BUFFER (Cont.)
Contents of OPCODE field
Symbol Value Meaning
.CFVOT 1 Vote request
.CFREP 2 Reply to vote request
.CFRFR 3 Resource freed
.CFCEZ 4 Seize resource
.CFBOW 5 Broadcast of OFN change
.CFBEF 6 Broadcast end-of-file info
.CFTAD 7 Time and date arrived
.CFSHT 10 Shutdown of system is pending
| .CFENQ 11 Cluster ENQ message
See the description of the HSHDRC field in the CFS Resouce Block table
for the possible value of the denial reason code field (CFDRC).
50
MONITOR TABLES
CH-CTERMD
This is the CTERM Connection Data Block. One CTERM Connection Data
Block exists for each active CTERM connection.
Defined in: CTERMD
Format
Per connection CTERM data base - same as CDB
+------------------------------------------------------------------------+
CHIMB | Address of CTERM message input buffer |
|------------------------------------------------------------------------|
CHUID | Unique ID (used for stale detection) |
|------------------------------------------------------------------------|
CHCO1 | Last CCOC word (1) sent to server |
|------------------------------------------------------------------------|
CHCO2 | Last CCOC word (2) sent to server |
|------------------------------------------------------------------------|
CHBR1 | Last break mask (word 1) sent to server |
|------------------------------------------------------------------------|
CHBR2 | Last break mask (word 2) sent to server |
|------------------------------------------------------------------------|
CHBR3 | Last break mask (word 3) sent to server |
|------------------------------------------------------------------------|
CHBR4 | Last break mask (word 4) sent to server |
|------------------------------------------------------------------------|
CHRFL | START-READ flags |
|------------------------------------------------------------------------|
| CHLIN | CHCHL |
| TOPS-20 TTY # | DECnet36 channel number |
|------------------------------------------------------------------------|
| CHINC | CHSTS |
| Count of bytes in input buffer | Current status of DECnet link |
|------------------------------------------------------------------------|
| CHSTA | CHSSZ |
| Current CTERM state for this TTY | Maximum protocol message size |
|------------------------------------------------------------------------|
| CHMAX | CHRLN |
| Maximum input buffer length | START-READ length |
|------------------------------------------------------------------------|
| CHRID | CHRBL |
| Remote host ID (node address) | ^R Buffer length (0<RBFCNT) |
|------------------------------------------------------------------------|
| | | | | | | | | | | | | | | | | *
| CHFLG | CHFL1 |
|------------------------------------------------------------------------| /\
CHRBF | | <<RBFCNT>/5>
\ \ \/
| |------------------------------------------------------------------------| /\
| | Remote username string | 10
| +------------------------------------------------------------------------+ \/
51
MONITOR TABLES
CH-CTERMD (Cont.)
For field CHFLG(0-17):
CHRDA 0 A read request is active in the server.
CHMRD 1 There is input data available in the server
CHSSD 2 Set "do not discard" in the next write message
CHDSO 3 Discard output (control-O is in effect)
CHRCX 4 CR-LF forced on in server's break mask
CHCLI 5 Clear input buffer
CHASR 6 Send another START-READ
CHCOC 7 Send CCOC words
CHTCI 8 Sending input characters to TTYSRV
CHCTM 9 CTERM INITIATE message has been received
CHBIN 10 Last message sent to server was Transparent (binary)
For field CHFL1(18-35):
CHEDT 18 Remote server supports editing
CHLWI 19 Remote server supports line width setting
CHRTI 20 Remote server supports remote TEXTI% prompts
52
MONITOR TABLES
CH-D36COM
This table defines the memory-manager data base for DECnet-36
pre-allocated message blocks and buffers.
Defined in: D36COM
Format
Core handler structure
+------------------------------------------------------------------------+
CHBOT | Pointer to free pool start |
|------------------------------------------------------------------------|
CHPTR | pointer to first free block |
|------------------------------------------------------------------------|
CHAVL | Number of available blocks |
|------------------------------------------------------------------------|
| CHLWM | CHREQ |
| Low water mark | Size requested |
|------------------------------------------------------------------------|
| | CHNUM | CHSIZ |
| | Total blocks, alloc & unalloc | Size of blocks |
+------------------------------------------------------------------------+
Field CHCON (0-0) Set if this block type subject to congestion
53
MONITOR TABLES
CH-LLMOP
This is the DECnet remote console LLMOP header MSD.
Defined in: LLMOP
Format
MSD for header
+------------------------------------------------------------------------+
CHIDD | ID word to hack for Transmit Complete |
|------------------------------------------------------------------------| /\
CHMSD | | MD.LEN
\ \ \/
|------------------------------------------------------------------------| /\
CHDAT | Room for Largest Remote Console header | <<RCH.LN+3>/4>
\ \ \/
+------------------------------------------------------------------------+
54
MONITOR TABLES
CHNTAB
Channel Table contains channel data block (CDB) pointers.
Defined in: STG
Index: Channel Number
Format
+-------------------------------------------------------+ / \
CHNTAB: | CDB Pointer | |
|-------------------------------------------------------| |
| . |
| . | CHNN
| . |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
55
MONITOR TABLES
CICMST
This table contains the status of the oldest MSCP driver command for
each connection. This is the status returned from the server. If the
number does not decrease after each GCS command, we assume the remote
is dead.
Defined in: PHYMSC
Index: Server connect id.
+-------------------------------------------------------+
CICMST | GCS count | / \
|-------------------------------------------------------| |
| | |
| | |
/ / CTABSZ
/ / |
| | |
| | |
+-------------------------------------------------------+ \ /
56
MONITOR TABLES
CIDATA
This table contains the state of the MSCP driver connection during
initialization and, after initialization, the status of the
connection.
Defined in: PHYMSC
Index: Server connect id.
+-------------------------------------------------------+
CIDATA | Status word | *
|-------------------------------------------------------|
| | / \
| | |
/ / |
/ / CTABSZ
| | |
| | |
+-------------------------------------------------------+ \ /
Status word: 0 1 2 3 4 5 6 7 8
+-------------------------------------------------------+
| | | | | | | | | |
+-------------------------------------------------------+
Symbol Bits Content
DT.TAP 0 Controller is a tape drive (must be sign bit)
DT.GAW 1 Node has gone away (connection broken)
DT.GCS 2 A GCS command is outstanding
DT.IDC 3 We have initiated a disconnect
DT.IRC 4 We have initiated a reconnect
DT.DIS 5 Other side has initiated a disconnect
DT.DI1 6 Already tried disconnect once
DT.NXU 7 First pass next unit test
DT.KL 8 Remote is KL
57
MONITOR TABLES
CI RELATED VARIABLES
| This is a list of various CI related variables in SCAMPI. They are
| not stored in this contiguous format.
|
| Defined in: SCAMPI
+-------------------------------------------------------+
TOPFQ: | Address of top of message free queue |
|-------------------------------------------------------|
BOTFQ: | Address of bottom of message free queue |
|-------------------------------------------------------|
FQCNT: | Count of buffers on message free queue |
|-------------------------------------------------------|
TOPDC: | Address of top of "don't care" queue |
|-------------------------------------------------------|
BOTDC: | Address of bottom of "don't care" queue |
|-------------------------------------------------------|
TOPDFQ: | Address of top of datagram free queue |
|-------------------------------------------------------|
BOTDFQ: | Address of bottom of datagram free queue |
|-------------------------------------------------------|
DFQCNT: | Count of buffers on datagram free queue |
|-------------------------------------------------------|
SBCNT: | Number of system blocks |
|-------------------------------------------------------|
NOTTAB: | Address of notification table |
|-------------------------------------------------------|
NOTEND: | Address of end of notification table |
|-------------------------------------------------------|
UNQBTS: | Uniqueness bits to be assigned to next CID |
|-------------------------------------------------------|
UNQRFL: | Number of times uniqueness bits have been recycled |
|-------------------------------------------------------|
NXTIDX: | Next free index into table of CID's |
|-------------------------------------------------------|
CIDRFL: | Number of times CIDTAB has been recycled |
|-------------------------------------------------------|
CIDTAB: | Base address of the CID address table |
|-------------------------------------------------------|
UBTTAB: | Base address of the CID uniqueness bits table |
|-------------------------------------------------------|
SBSTUK: |Bit mask indicating which systems are stuck on buffers |
| |-------------------------------------------------------|
| RAPTIM: | Timer for SCA |
| |-------------------------------------------------------|
| RAPINC: | Min. time increment in milliseconds between reap runs |
|-------------------------------------------------------|
RNGSW: | Indicates which ring buffer events are recorded |
58
MONITOR TABLES
CI RELATED VARIABLES (Cont.)
| |-------------------------------------------------------|
| | |/\
| SNDTAB: | Table of packets sent |.STLST
| | |\/
| |-------------------------------------------------------|
| | |/\
| RECTAB: | Table of packets received |.STLST
| | |\/
|-------------------------------------------------------|
LISTEN: | Number of listeners |
|-------------------------------------------------------|
RCBCNT: | Number of connections deleted by reaper |
|-------------------------------------------------------|
TMGCNT: | Count of systems timed out by idle chatter |
|-------------------------------------------------------|
TMGSBI: | Current system under investigation by idle chatter |
| |-------------------------------------------------------|
| TMGTIM: | Timeout period for idle chatter |
|-------------------------------------------------------|
MBPS: | Minimum message buffers per system block |
|-------------------------------------------------------|
MBCR: | Minimum datagram buffers per system block |
|-------------------------------------------------------|
MINMSG: | Minimum number of message buffers which should exist |
|-------------------------------------------------------|
MINDG: | Minimum number of datagram buffers which should exist |
|-------------------------------------------------------|
NMBCNT: | Count of times we ran out of message buffers |
|-------------------------------------------------------|
NDBCNT: | Count of times we ran out of datagram buffers |
|-------------------------------------------------------|
TOTMGB: | Total number of message buffers ever created |
|-------------------------------------------------------|
TOTDGB: | Total number of datagram buffers ever created |
| |-------------------------------------------------------|
| MBUST: | Number of times a small request was honored |
| | Even under message threshold |
| |-------------------------------------------------------|
| DBVST: | Number of times a small request was honored |
| | Even under datagram threshold |
|-------------------------------------------------------|
DMRCNT: | Number of message buffer requests deferred |
|-------------------------------------------------------|
DDRCNT: | Number of datagram buffer requests deferred |
|-------------------------------------------------------|
RMRCNT: | Number of message buffer requests refused |
|-------------------------------------------------------|
RDRCNT: | Number of datagram buffer requests refused |
59
MONITOR TABLES
CI RELATED VARIABLES (Cont.)
|-------------------------------------------------------|
ASRMR: | Average size of refused message request |
|-------------------------------------------------------|
ASRDR: | Average size of refused datagram request |
| |-------------------------------------------------------|
| LRGREQ: | Buffer requests of less than this size are small req. |
| |-------------------------------------------------------|
| MGTRSH: | MSG Threshold |
| | SC.ABF does not allocate a large request * |
| |-------------------------------------------------------|
| DGTRSH: | DG Threshold |
| | SC.ALD does not allocate a large request * |
| +-------------------------------------------------------+
|
| * A large reuest is any request larger than 2.
60
MONITOR TABLES
CLASS-SCHEDULER-STORAGE
This storage is used by the class scheduling algorithms.
Defined in: STG
Index: A number of the sections are indexed by either class (sections
of length MAXCLS) or by job number (sections of length NJOBS).
Format
+-------------------------------------------------------+
MJBUSE: | Highest job in use |
+-------------------------------------------------------+
RDRTIM: | Time to do next reorder |
+-------------------------------------------------------+
UTLTIM: | Time to compute utilization |
+-------------------------------------------------------+
UTLINT: | Interval to compute next utilization |
+-------------------------------------------------------+
OLDSLD: | Previous sold time |
+-------------------------------------------------------+
OLDIDL: | Previous idle time |
+-------------------------------------------------------+
CLASSF: | If non-zero, doing classy scheduling |
+-------------------------------------------------------+
CLSCTL: | Class control word | *
+-------------------------------------------------------+
CLSUTL: | | /\
| Class utilization | MAXCLS
\ . \ \/
+-------------------------------------------------------+
JOBCLS: | | /\
| Class per job | NJOBS
\ . \ \/
+-------------------------------------------------------+
JOBUTL: | | /\
| Job utilization | NJOBS
\ . \ \/
+-------------------------------------------------------+
JOBIRT: | | /\
| Job incremental runtime | NJOBS
\ . \ \/
+-------------------------------------------------------+
JOBDST: | | /\
| Job distance | NJOBS
\ \ \/
+-------------------------------------------------------+
CLSSHR: | | /\
| Class share | MAXCLS
\ . \ \/
61
MONITOR TABLES
CLASS-SCHEDULER-STORAGE (Cont.)
+-------------------------------------------------------+
CLSSWA: | | /\
| Windfall allocation (or -1) | MAXCLS
\ . \ \/
+-------------------------------------------------------+
CLSSHI: | | /\
| Share per member | MAXCLS
\ . \ \/
+-------------------------------------------------------+
CLSCNT: | CLGLC | | / \
| Count of processes | | MAXCLS
| on GOLST per class | | |
\ . \ \ /
+-------------------------------------------------------+
CLSDST: | | /\
| Class distance | MAXCLS
\ . \ \/
+-------------------------------------------------------+
CLSSUM: | | /\
| Integral of NRUN for classes | MAXCLS
\ . \ \/
+-------------------------------------------------------+
CLSIRT: | | /\
| Class incremental runtime | MAXCLS
\ . \ \/
+-------------------------------------------------------+
0 1 9 10 18 19 20 25 26 36
+-------------------------------------------------------+
CLSCTL | | CLSDF | CLSBT | | CLSKV | |
entry +-------------------------------------------------------+
Bits Pointer Content
0 CLSBD BATCH jobs to dregs queue
1-9 CLSDF Default class
10-18 CLSBT Batch class
19 CLSAC If on, class by accounts
20-25 CLSKV Current knob value
62
MONITOR TABLES
| CLUHST
|
| This table contains information CLUDGR uses when it receives a
| connection to its listener. CLUHST is a maximum of HSTSIZ words long.
| HSTSIZ is defined in STG.
|
| Defined in: CLULSN
|
| +-------------------------------------+ /|\
| CLUHST: | -1 if listening, or connect ID | |
| +-------------------------------------+ HSTSIZ
| \ \ |
| \ \ |
| +-------------------------------------+ \|/
63
MONITOR TABLES
| CLUSTS
|
| This table is kept in parallel with CLUHST. It contains the status
| word or it contains a connect ID if this entry is associated with a
| listener. CLUSTS is a maximum of HSTSIZ words long. HSTSIZ is
| defined in STG.
|
| Defined in: CLULSN
|
| +-------------------------------------+
| CLUSTS: | 36 bit status word for each host | /|\
| | or | |
| | Connect ID if entry for listener | |
| +-------------------------------------+ HSTSIZ
| \ \ |
| \ \ |
| +-------------------------------------+ \|/
|
| Name Bit Meaning
|
| CL%RDY 0 Set when connection is fully opened
| CL%OPN 1 Set when connection is being opened
| CL%DNY 2 Set when remote system is rejecting
| CLUDGR requests
| CL%LCL 3 Set when remote system has little credit
| left
| CL%NOS 4 Set when remote system is refusing SEND
| ALLs
| 5-17 Reserved for future expansion
| CIDBUF 18-35 Contains the count of buffers in use by
| this connection.
64
MONITOR TABLES
CM
CM is the common header used in all NI command blocks. The remainder
of a command block for a particular command is appended to the end of
the common header.
Defined in: PHYKNI
Format
+------------------------------------------------------------------------+
CMFLI | Forward link | *
|------------------------------------------------------------------------|
CMBLI | Backward link |
|------------------------------------------------------------------------|
CMVAD | Virtual address of entry |
|------------------------------------------------------------------------|
| | CMERR | | | | | | | | | CMOPC | CMTDR | |
| |Error code | CMFLG | Opcode | Time domain | |
| | including | | |reflectometry value| |
| | error bit | | | | |
| | at bottom | | | | |
+------------------------------------------------------------------------+
Field CMSRI (0-0) Send/receive indicator
For field CMFLG(7-14):
CMPAC 7 Packing mode for non-BSD
CMCRC 8 CRC included
CMPAD 9 Unused
CMB03 10 Unused
CMBSD 11 Buffer segment descriptor format
CMB05 12 Unused
CMCLR 13 Clear counters
CMRSP 14 Response needed
+------------------------------------------------------------------------+
CMFLI | CMERC |
| NISRV error code during command processing |
+------------------------------------------------------------------------+
65
MONITOR TABLES
CONNECT ID FORMAT
This is the format of a SCA connect ID. Each SYSAP can specify the
SYSAP ID to be of any value.
Defined in: SCAPAR
0 5 6 22 23 31 32 35
+--------------------------------------------------------+
| SID | UBITS | INDEX | |
|SYSAP ID| Uniqueness bits |CIDTAB index |unused |
+--------------------------------------------------------+
66
MONITOR TABLES
CSTnX
The CSTnX tables, where n ranges from 0 to 3, are the tables that
allow access to the core status tables, now residing in extended
sections. Each table holds 16 values, which allow indirect access to
each of the CSTs, instead of the indexed access that was used when the
CSTs were in section 0/1.
The values in the CSTnX tables are never changed and are determined
when the monitor is linked. CST5 is still in section 0/1, so there is
no need for a CST5X table.
Defined in: CSTnX
0 5 6 35
+-----------------------------------------------+
CSTnX: | 0 | Address of CSTn |
|-----------------------------------------------|
| 1 | Address of CSTn |
|-----------------------------------------------|
| 2 | Address of CSTn |
|-----------------------------------------------|
| 3 | Address of CSTn |
|-----------------------------------------------|
| . | |
| . | |
| . | |
|-----------------------------------------------|
| 17 | Address of CSTn |
+-----------------------------------------------+
67
MONITOR TABLES
CST0
Core Status Table 0 (sometimes referred to as CST). Each entry in
this table is principally defined by the pager. If the page is in
use, the entry contains the age stamp for the page; if the page is not
in use, the age stamp field is used to show the page's state.
Defined in: STG
Index: Physical page number
Format
+-------------------------------------------------------+
| CSTAGE | XGAGE | CFXRD | | | * / \
CST0: | Page State | | Fork # | | | |
| or Age | | | | | |
|-------------------------------------------------------| |
| . | |
| . |
| . | MAXCOR
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
68
MONITOR TABLES
CST0 (Cont.)
Symbol Bits Pointer Content
AGEMSK 0-8 CSTAGE If page in use, contents of
pager age register ( >= 100 )
at last age register reload
If page not in use, this field
indicates (right-justified) the
page state as follows:
PSRPQ = 0 On replaceable queue
PSDEL = 1 To be put on
replaceable queue
PSRDN = 2 Read completed
PSWIP = 4 Write in progress
PSRIP = 6 Read in progress
PSSPQ = 7 Page on special memory
queue
PSASN = 10 Page assign to process
if age field >=PSASN.
(The age field should
always be strictly
greater than 10 as
it is initialized to
100 and increases in
value as process
runs.)
9-14 XGAGE Age at last XGC (low bits only)
18 CSWRB CST write bit
19-32 CFXRD Number of fork which initiated
read if page not in use
(that is, age field < 10).
PSTFLD 33-34 CSTPST Special page state
PSTAVL=.MCPSA=0 Available for
RPLQ when freed
PSTSPM=.MCPSS=1 Place on SPMQ
when freed
PSTOFL=.MCPSO=2 Offline-action
as PSTSPM
PSTERR=.MCPSE=3 Offline due to
error action as
PSTSPM
CORMB 35 This is the "modified" bit which
is set by the pager on any write
reference. This bit is 1 if
the page has been written since
the last operation.
69
MONITOR TABLES
CST1
Core Status Table 1. This table is referenced only by the software
and is parallel to CST0. It contains the lock count which indicates
the number of system events requiring the page be locked in core (that
is, page table contains other core addresses) and the backup address
(next level of storage) for each page in core (1000000 if unassigned).
Defined in: STG
Index: Physical page number
Format
0 11 12 13 14 35
+-------------------------------------------------------+
CST1: | PLKMSK | | | * / \
| Lock count | | Backup Address | |
|-------------------------------------------------------| |
| . | |
| . |
| . | MAXCOR
| . |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
Symbol Bits Pointer Content
0-11 PLKMSK Lock count field-if non-zero,
the page is not
considered for swapping
PLKV 11 Page lock value in CST1
14-35 Backup address
70
MONITOR TABLES
CST2
CST2
Core Status Table 2 (Home Map Location). This table is referenced
only by the software and is parallel to CST0. It contains the home
map location for the page (that is, the page table which contains the
core address pointing to the page).
If the left half is 0, the home map is the SPT and the right half
contains the SPT index. If the left half is not 0, the home map is a
page table or index block, where PTN is the SPT index of that map and
PN is the page number within that map.
(See the SPT and SPTH table descriptions.)
Defined in: STG
Index: Physical page number
Format
+-------------------------------------------------------+
CST2: | PTN | PN | / \
|-------------------------------------------------------| |
| or | |
|-------------------------------------------------------| |
| 0 | SPTN | |
|-------------------------------------------------------| |
| or | |
|-------------------------------------------------------|
| zero if page not assigned | MAXCOR
|-------------------------------------------------------|
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
NOTE
The SPTN/PTN value (both SPT indexes) is used to
specify the kind of page represented in the CST2
table. For example, if the SPTN in the second format
above is greater than or equal to NOFN (length of the
OFN area), the process' page is a file page pointed to
by a shared pointer or fork overhead page. Otherwise
(that is, SPTN<NOFN), it's an index block page.
Likewise, if the PTN value in the first format above
is greater than or equal to NOFN, the page is a
71
MONITOR TABLES
CST2
private process page (that is, pointed to by a direct
pointer from the process' map). Otherwise (that is,
PTN<NOFN), it is a process' file page pointed to by an
indirect pointer through the file's own page table,
the index block. *
* In both of these cases when an index block is
involved (that is, SPTN/PTN< NOFN), it is common to
find in the monitor listings the symbolic notation,
OFN, replacing SPTN/PTN.
72
MONITOR TABLES
CST3
Core Status Table 3. This table is referenced only by the software
and is parallel to CST0. An entry in this table is used for a variety
of purposes, generally as a list pointer for groups of pages on
various queues.
For example, when on the replaceable queue, the left half and right
half contain backward and forward list pointers, respectively. When
on a swapping device queue, the right half contains a forward list
pointer and B0 is 1 if write and 0 if read.
Other queues threaded throughout this table are the deletion and
special memory queues.
When the page is in use (not linked on one of the queues), it contains
the local disk address for PHYSIO and the fork assigned to the page.
Defined in: STG
Index: Physical page number
Format
+-------------------------------------------------------+
CST3: | Backward List Pointer | Forward List Pointer | / \
|-------------------------------------------------------| |
| or | |
|-------------------------------------------------------| |
| | | Forward List Pointer | |
|-------------------------------------------------------| |
| or | |
|-------------------------------------------------------| |
| | CSTOFK | CSTLDA |* |
|Flags | Fork # | Local Disk Address |
|-------------------------------------------------------| MAXCOR
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
73
MONITOR TABLES
CST3 (Cont.)
0 1 2 3 14 15 35
+-------------------------------------------------------+
| | | | CSTOFK | CSTLDA |
| | | | Fork # | Local Disk Address |
+-------------------------------------------------------+
Symbol Bits Pointer Content
DWRBIT 0 Set if write in progress.
The bit is cleared by the
swapper when the write
completes.
SWPERR 1 Set if an unrecoverable
error occurred when this
page read in from disk/drum
DSKSWB 2 Swap to disk requested by
DDMP (periodic routine that
trickles file pages to the
disk) or by monitor when
certain monitor calls are
issued, for example, CLOSF
3-14 CSTOFK Process to which this page
is assigned (7777 is not
assigned).
15-35 CSTLDA Local disk address for
PHYSIO
74
MONITOR TABLES
CST5
Core Status Table 5. This table is referenced only by the software
and is parallel to CST0. It is a table of short IORBs. See the IORB
table for a description of the IRBSTS entry which describes the short
(1 word) IORB.
Defined in: STG
Index: Physical page number
Format
+-------------------------------------------------------+
CST5: | Flags | Next Disk IORB(short/long)| / \
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . |
| . | MAXCOR
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
75
MONITOR TABLES
CT
The CT structure is used to keep the information for a DECnet network
management counter. It is pointed to by a table, generated with the
COUNTER macro. This structure is read by the routine NTCTRS in
D36COM.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
| | CTHDR |
| | Counter width, number |
|------------------------------------------------------------------------|
CTRED | Instruction to execute to read the counter |
|------------------------------------------------------------------------|
CTCLR | Instruction to execute to clear the counter |
|------------------------------------------------------------------------|
CTBMC | Instruction to execute to get the bit map |
+------------------------------------------------------------------------+
Field CTBMF (0-0) Bit map flag
76
MONITOR TABLES
DEV`DTB
Device Dispatch Table. Each device has its own dispatch table that
conforms to the format described below. An error return dispatch
address is placed in those words which have no corresponding device
function. The naming convention for these tables is the device name
concatenated with DTB (that is, MTADTB, DSKDTB, and TTYDTB)
Defined in: PROLOG
Format
+-------------------------------------------------------+
DTBLH=0 | Length of DTB Block |
|-------------------------------------------------------|
DLUKD=1 | Directory Setup |
|-------------------------------------------------------|
NLUKD=2 | Name Lookup |
|-------------------------------------------------------|
ELUKD=3 | Extension Lookup |
|-------------------------------------------------------|
VLUKD=4 | Version Lookup |
|-------------------------------------------------------|
PLUKD=5 | Protection Insertion |
|-------------------------------------------------------|
ALUKD=6 | Account Insertion |
|-------------------------------------------------------|
SLUKD=7 | Status Modification |
|-------------------------------------------------------|
OPEND=10 | Open File |
|-------------------------------------------------------|
BIND=11 | Sequential Byte Input |
|-------------------------------------------------------|
BOUTD=12 | Sequential Byte Output |
|-------------------------------------------------------|
CLOSD=13 | Close File |
|-------------------------------------------------------|
REND=14 | Rename File |
|-------------------------------------------------------|
DELD=15 | Delete File |
|-------------------------------------------------------|
DMPID=16 | Dump Mode Input |
|-------------------------------------------------------|
DMPOD=17 | Dump Mode Output |
|-------------------------------------------------------|
MNTD=20 | Mount |
|-------------------------------------------------------|
DSMD=21 | Dismount |
|-------------------------------------------------------|
INDD=22 | Initialize a Directory |
77
MONITOR TABLES
DEV`DTB (Cont.)
|-------------------------------------------------------|
MTPD=23 | MTOPR Operations |
|-------------------------------------------------------|
GDSTD=24 | Get Device Status |
|-------------------------------------------------------|
SDSTD=25 | Set Device Status |
|-------------------------------------------------------|
RECOUT=26| Force Record Out (SOUTR) |
|-------------------------------------------------------|
RFTADD=27| Read File Time and Date |
|-------------------------------------------------------|
SFTADD=30| Set File Time and Date |
|-------------------------------------------------------|
JFNID=31 | Set JFN for Input |
|-------------------------------------------------------|
JFNOD=32 | Set JFN for Output |
|-------------------------------------------------------|
ATRD=33 | Check Attribute |
|-------------------------------------------------------|
RLJFD=34 | Release JFN |
+-------------------------------------------------------+
78
MONITOR TABLES
DEVCH1
Device Characteristics Table 1. This table contains a word of
information about each device unit in the system and is initialized
from the INIDVT table at system start up time.
Defined in: STG, MONSYM
Format
+-------------------------------------------------------+
DEVCH1: | Device Characteristics (word 2) | / \
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . | |
| . |
| . | NDEV
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
Symbol Bits Content
D1%SPL 0 Device is spooled
D1%ALC 1 Device is under control
of allocator
D1%VVL 2 Volume valid
D1%NIU 3 Device slot not is use
D1%INI 4 Device is being initialized
currently for structures
only)
D1%MTO 5 Device can do MTOPR without
JFN opened.
79
MONITOR TABLES
DEVCH2
Device Characteristcs Table 2. This table contains spool directory
information and is parallel to the DEVCH1 table.
Defined in: STG
Format
+-------------------------------------------------------+
DEVCH2: | Directory Number of Spool Directory | / \
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . | |
| . |
| . | NDEV
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
80
MONITOR TABLES
DEVCHR
Device Characteristics Table. This table contains indexed information
about each device unit and is initialized from the INIDVT table at
system startup time. See INIDVT table for bit definitions.
Defined in: STG
Format
0 8 9 17 18 35
+-------------------------------------------------------+
DEVCHR: | CHAR1* | TYPE | MODES | / \
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . | |
| . |
| . | NDEV
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
*CHAR1
Bit 5 can take on another meaning (that is, DV%OPN=1B5;
File Open on Device) than the one described in INIDVT.
NOTE
A resident word, DEVLCK (Free is -1), is used to lock
the data base in the DEVXXX Tables when they are being
manipulated.
81
MONITOR TABLES
DEVDSP
Device Dispatch Table Addresses. This table contains the device
dispatch table for each device unit and is initialized from the INIDVT
table at system startup time.
Defined in: STG
Format
+-------------------------------------------------------+
DEVDSP: | Device Type Index | Dispatch Table Address | / \
| (Not Referenced) | | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . | |
| . |
| . | NDEV
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
82
MONITOR TABLES
DEVNAM
Device Name Table. This table contains the SIXBIT device name for
each device unit. The generic device name is obtained from INIDVT,
modified to include unit number (if device has units) and stored in
this table at system start up time.
Defined in: STG
Format
+-------------------------------------------------------+
DEVNAM: | SIXBIT / Name / | / \
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . | |
| . |
| . | NDEV
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
83
MONITOR TABLES
DEVUNT
Device Unit Table. This table contains information about the job
associated with a unit, where the unit information in DEVUNT is built
at system startup utilizing data from the INIDVT table.
Defined in: STG
Format
+-------------------------------------------------------+
DEVUNT: |Assigner's Job#/Dev Free(-1)|Unit # or No Unit Dev(-1) | / \
| | or being controlled by | |
| | the allocator (-2) | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . | |
| . |
| . | NDEV
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
84
MONITOR TABLES
DIRECTORY
Directory Format. The following illustrations show the format of a
TOPS-20 directory.
Defined: PROLOG
Overview of a Directory
+-------------------------------------------------------+
| |
| Page 0 |
| |
|-------------------------------------------------------|
| |
| Page 1 |
| |
|-------------------------------------------------------|
| . |
| . |
| . |
| . |
| . |
| . |
| . |
| . |
| . |
|-------------------------------------------------------|
| |
| Page n |
| |
|-------------------------------------------------------|
| |
| |
| Symbol Table |
| |
| |
|-------------------------------------------------------|
| |
| |
| Reserved for Directory Expansion |
| |
| |
+-------------------------------------------------------+
85
MONITOR TABLES
DIRECTORY (Cont.)
First Page of a Directory
0 17 18 23 24
+-------------------------------------------------------+
| DRTYP | DRVER | DRHLN |
| Block Type TYDIR (400300) | Ver. # | Length of Header |
|-------------------------------------------------------|
| DRRPN | DRNUM |
| Relative Page # in DIR | Directory Number |
|-------------------------------------------------------|
| DRFFB |
.DRFFB=2| Pointer to First Free Block |
|-------------------------------------------------------|
| DRSBT |
| Address of start of Symbol Table |
|-------------------------------------------------------|
| DRSTP |
| Address of end of Symbol Table |
|-------------------------------------------------------|
| DRFTP |
| Address of Last Used Word+1 for Strings and FDBs |
|-------------------------------------------------------|
| DRFBT |
| Pointer to Free Bit Table |
|-------------------------------------------------------|
| DRDPW |
| Default File Protection |
|-------------------------------------------------------|
| DRPRT |*
| Default Directory Protection |
|-------------------------------------------------------|
| DRDBK |
| Backup Specification |
|-------------------------------------------------------|
| DRLIQ |
| Logged In Quota |
|-------------------------------------------------------|
| DRLOQ |
| Logged Out Quota |
|-------------------------------------------------------|
| DRDCA |
| Current Directory Allocation |
|-------------------------------------------------------|
| DRNAM |
| Pointer to Directory Name String |
|-------------------------------------------------------|
| DRPSW |
| Pointer to Password String |
86
MONITOR TABLES
DIRECTORY (Cont.)
|-------------------------------------------------------|
| DRPRV |
| Privilege Bits |
|-------------------------------------------------------|
| DRMOD |
| Mode Bits |
|-------------------------------------------------------|
| DRDAT |
| | Date and Time of Last Interactive LOGIN |
|-------------------------------------------------------|
| DRUGP |
| Pointer to User Group List |
|-------------------------------------------------------|
| DRDGP |
| Pointer to Directory Group List |
|-------------------------------------------------------|
| DRUDT |
| Date and Time of Last Update to Directory |
|-------------------------------------------------------|
| DRSDM | DRSDC |
| Max # of Subdirectories | Count of Subdirectories |
|-------------------------------------------------------|
| DRCUG |
| CRDIR allowed specifying these User Groups |
|-------------------------------------------------------|
| DRACT |
| Pointer to Dir. Default Account |
|-------------------------------------------------------|
| DRDNE |
| Default online expiration date/interval |
|-------------------------------------------------------|
| DRDFE |
| Default offline expiration date/interval |
|-------------------------------------------------------|
| | DRRNA |
| | Pointer to remote alias list |
| |-------------------------------------------------------|
| | | DRPEV |
| | Reserved | Password encryption ver. |
|-------------------------------------------------------|
| DRPDT |
| Creation date/time of password |
|-------------------------------------------------------|
| DRPED |
| Expiration date/time of password |
|-------------------------------------------------------|
| DRPUD | *
| Password use data |
87
MONITOR TABLES
DIRECTORY (Cont.)
|-------------------------------------------------------|
| DRPPN |
| TOPS-10 project-programmer number |
| |-------------------------------------------------------|
| | DRNIL |
| | Last non-interactive LOGIN date-time |
| |-------------------------------------------------------|
| | DRFIL | DRFNL |
| | Failed interactive | Failed non-interactive |
| | Login attempts | Login attempts |
| |-------------------------------------------------------|
| |
| Spare Words |
| |
| |
\ \
|-------------------------------------------------------|
| |
| Free Space for Strings and FDBs |
| |
\ \
+-------------------------------------------------------+
18 23 24 29 30 35
+-----------------------------------------------------------+
DRPRT | | DRPOW | DRPGP | DRPWL |
+-----------------------------------------------------------+
Bits Pointer Content
18-23 DRPOW Owner field
24-29 DRPGP Group field
30-35 DRPWL World field
+-----------------------------------------------------------+
DRPUD | DRPCU | DRPMU |
+-----------------------------------------------------------+
0-17 DRPCU Current password use count
18-36 DRPMU Maximum password use count
88
MONITOR TABLES
DIRECTORY (Cont.)
General format for all blocks
0 17 18 23 24 35
+----------------------------------------------------------+
| BLKTYP | BLKVER | BLKLEN |
| Type code | Ver. # | Length |
+----------------------------------------------------------+
Possible type codes are:
Code Value Type
.TYNAM 400001 Name Block
.TYEXT 400002 Extension Block
.TYACT 400003 Account Block
.TYUNS 400004 User Name Block
.TYFDB 400100 File Descriptor Block
.TYLAC 400200 Legal Account List
.TYDIR 400300 Directory
.TYSYM 400400 Symbol Table
.TYFRE 400500 Free Block
.TYFBT 400600 Free Storage Bittable
.TYGDB 400700 Group Descriptor Block
Subsequent Directory Pages
+-------------------------------------------------------+
| DRTYP | DRVER | DRHLN |
| .TYDIR (400300) | Ver. # | Length of Header |
|-------------------------------------------------------|
| DRRPN | DRNUM |
| Relative Page # in DIR | Directory Number |
|-------------------------------------------------------|
| DRFFB |
| Pointer to First Free Block |
|-------------------------------------------------------|
| |
| |
| Free Space for Strings and FDBs |
| |
| |
+-------------------------------------------------------+
89
MONITOR TABLES
DIRECTORY (Cont.)
Symbol Table
|-------------------------------------------------------|
| SYMTY | | SYMDN |
| .TYSYM (400400) | |Dir. # of Sym.Tbl.|
|-------------------------------------------------------|
| -1 |
|-------------------------------------------------------|
|SYMET| SYMAD | * \
|Type | Address of FDB | \
|-------------------------------------------------------| >
| SYMVL | /
| First 5 Characters of Name, Account or User | /
| Name for last writer/author in ASCII |
|-------------------------------------------------------|
| . |
| . |
| . |
| . |
| . |
| . |
| . |
| . |
|-------------------------------------------------------| \
| | \
|-------------------------------------------------------| >
| | /
+-------------------------------------------------------+ /
0 1 2 3 35
+-------------------------------------------------------+
|Type | Address of FDB |
+-------------------------------------------------------+
Bits Pointer Content
0-2 SYMET Entry Type
0 = .ETNAM Name
2 = .ETUNS User Name
4 = .ETACT Account
3-35 SYMAD Address of FDB
90
MONITOR TABLES
DIRECTORY (Cont.)
User Name String
+-------------------------------------------------------+
| UNTYP | | UNLEN |
| .TYUNS (400004) | Ver. # | Length |
|-------------------------------------------------------|
| UNSHR | |
| Share Count of User Name String |
|-------------------------------------------------------|
| UNVAL |
| ASCIZ User Name String |
+-------------------------------------------------------+
Name String
+-------------------------------------------------------+
| NMTYP | | NMLEN |
| .TYNAM (400001) | Ver. #| Length |
|-------------------------------------------------------|
| NMVAL |
| ASCIZ Name String |
| |
+-------------------------------------------------------+
Extension String
+-------------------------------------------------------+
| EXTYPE | |EXLEN |
| .TYEXT (400002) | Ver.# |Length |
|-------------------------------------------------------|
| |
| ASCIZ Extension String |
| |
+-------------------------------------------------------+
Account String
+-------------------------------------------------------+
| ACTYP | |ALLEN |
| .TYACT (400003) | Ver. # | Length |
|-------------------------------------------------------|
| ACSHR |
| Share Count |
|-------------------------------------------------------|
| ACVAL |
| ASCIZ Account String |
| |
+-------------------------------------------------------+
91
MONITOR TABLES
DIRECTORY (Cont.)
File Descriptor Block (FDB)
+-------------------------------------------------------+
| FBTYP | FBVER | FBLEN |
| .TYFDB (400100) | Ver. # | Length |
|-------------------------------------------------------|
| |
| |
\ See FDB Table for Details of this Block \
\ \
| |
| |
+-------------------------------------------------------+
Free Space
+-------------------------------------------------------+
| FRTYP | FRVER | FRLEN |
| .TYFRE (400500) | Ver. # | Length |
|-------------------------------------------------------|
| FRNFB |
| Pointer to Next Free Block or 0 if at end |
|-------------------------------------------------------|
| |
| |
\ Remainder of Free Block \
\ \
| |
| |
+-------------------------------------------------------+
Free Storage Bit Table
+-------------------------------------------------------+
| | | |
| .TYFBT (400600) | Ver. #| Length |
|-------------------------------------------------------|
| |
\ Bit Table Containing 1 Bit per Directory Page \
\ \
| 0 = No Room on the Page |
| 1 = There is Room on the Page |
+-------------------------------------------------------+
92
MONITOR TABLES
DIRECTORY (Cont.)
Group List
+-------------------------------------------------------+
| | | |
| .TYGDB (400700) | Ver. # | Length |
|-------------------------------------------------------|
| Group # | Group # |
|-------------------------------------------------------|
| Group # | 0 |
+-------------------------------------------------------+
93
MONITOR TABLES
DIRECTORY CACHE
This resident table contains the directory cache and a lock for the
cache. Every five words (excluding the lock) describes an entry.
Defined in: STG, PROLOG
Reference by: DIRECT
Format
+-------------------------------------------------------+
DIRCLK: | Directory cache lock |
|-------------------------------------------------------|
DIRCSH: | | / \
DCDIRN=0 | Directory number of this entry |--- |
|-------------------------------------------------------| | |
DCSTRN=1 | Structure information | Structure number | | |
| (l.half of SDBFLK in SDB) | | | |
|-------------------------------------------------------| |
DCSHRC=2 | Share count of the entry |normal|
|-------------------------------------------------------|entry |
DCSOFN=3 | OFN for this directory | |
|-------------------------------------------------------| | |
DCSTIM=4 | Time at which this entry was last referenced | | |
|-------------------------------------------------------|---
| . | DIRSCZ
| . | (^D25)
| . | *5
\ \
+-------------------------------------------------------+ \ /
94
MONITOR TABLES
DL
This is the DECnet data link block -- DL.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
DLNXT | Link to next data link block |
|------------------------------------------------------------------------|
DLUID | ID supplied by DNADLL user |
|------------------------------------------------------------------------|
DLDID | Device ID |
|------------------------------------------------------------------------|
| | | | | | DLKNO | *
| DLFLG | | Kontroller number (DTE only) |
|------------------------------------------------------------------------|
DLUNB | Pointer to the User-NI block |
|------------------------------------------------------------------------|
DLPID | Portal ID |
|------------------------------------------------------------------------|
DLLTP | Line table pointer |
|------------------------------------------------------------------------|
DLSLZ | (0) Seconds since last zeroed |
|------------------------------------------------------------------------|
DLBYR | (1000) Total bytes received |
|------------------------------------------------------------------------|
DLBYS | (1001) Total bytes sent |
|------------------------------------------------------------------------|
DLDBR | (1010) Total data blocks received |
|------------------------------------------------------------------------|
DLDBS | (1011) Total data blocks sent |
|------------------------------------------------------------------------|
DLUBU | (1065) User buffer unavailable |
+------------------------------------------------------------------------+
For field DLFLG(0-5):
DLRUN 0 Data link is running
DLEBU 1 Emergency buffer in use
DLLIU 2 Line in use by circuit
95
MONITOR TABLES
DNA PARAMETER AND COUNTER DATA BASE
This is the DNA parameters and counters data base description. The
entity data bases are pointed to by table PRMP.
Defined in: NTMAN
Each entity type (NODE, LINE) has a data base composed of two word
blocks associated with it. The two word blocks have the format:
0 3 4 8 9 14 15 20 21 35
+--------------------------------------------------+
Word 0 | NTTYP | NTLEN | NTROU | NTDEV | NTQUA |
+--------------------------------------------------+
Bits Pointer Content
0-3 NTTYP Data type
NT.FC=1 - Coded format
NT.FCM=2 - Coded multiple
NT.FAI=3 - Ascii image (8-bit)
NT.FDU=4 - Decimal, unsigned. Cannot be zero
NT.FDS=5 - Decimal, signed
NT.FH=6 - Hex integer
NT.FHI=7 - Hex, image
NT.FOC=10 - Octal
NT.FDM=11 - Decimal, milliseconds
NT.FVN=12 - Version number
NT.FNE=13 - Node entity ID
NT.FNN=14 - Ascii node name
NT.FCN=15 - Ascii circuit name
4-8 NTLEN Length
9-14 NTROU Index to routine to call
15-20 NTDEV Device applicability
NTD.R - DMR-11
| NTD.N - Ethernet (NIA20)
| NTD.C - Computer Interconnect (CI20)
| NTD.P - DDP (DUP11)
| NTD.K - KDP (KMC11/DUP11)
NTD.D - DTE-20 (UGH)
21-35 NTQUA Qualifier Parameter Number
96
MONITOR TABLES
DNA PARAMETER AND COUNTER DATA BASE (Cont.)
0 3 4 9 10 11 12 13 22 23 35
+--------------------------------------------------+
Word 1 | NTAPL | NTINF | NTSET | NTBUF | NTBSZ | NTSEQ |
+--------------------------------------------------+
Bits Pointer Contents
0-3 NTAPL Applicability restrictions
NTA.E - Executor
NTA.L - Loop nodes
NTA.R - Remote nodes
NTA.H - Home area nodes
4-9 NTINF Information type
NTI.C - Characteristics
NTI.S - Status
NTI.% - Summary
NTI.K - Circuit State
NTI.Q - This parameter is qualified
NTI.N - None. NOOP bit
10-11 NTSET Settability restrictions
NTS.=0 - Read and write
NTS.R=1 - Read only parameter
NTS.W=2 - Write only parameter
12 NTBUF Buffer Field
NTB.=0 - Parameter value fits into a word
NTB.B=1 - Parameter value too big
13-22 NTBSZ Buffer size needed (if needed)
23-35 SEQ Sequence or type of field
97
MONITOR TABLES
DRMBBT
Drum Bit Table. This bit table indicates which pages are in use and
which pages are available in the swapping area.
Defined in: STG
Format
+-------------------------------------------------------+ / \
DRMBBT: \ \ \ |
\ \Cylinder 0 |
| | / |
|-------------------------------------------------------| |
\ \ \ |
\ \Cylinder 1 |
| | / |
|-------------------------------------------------------| |
| . | |
| . |
| . | DRMMXB
| . | *
| . | DRMBSZ
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
|-------------------------------------------------------| |
\ \ \ |
\ \Cylinder n |
| | / |
+-------------------------------------------------------+ \ /
NOTE
The bit map for each cylinder starts on a word
boundary and contains as many full words as are needed
for all of its pages.
98
MONITOR TABLES
DRMCNT
Drum Count Table. This resident table, indexed by cylinder, records
the free page count for the drum (logical swapping area). The total
free page count for all the cylinders is kept in the storage word,
DRMFRE.
Defined in: STG
Format
+-------------------------------------------------------+ / \
DRMCNT: | Drum Free Page Count - Cylinder 0 | |
|-------------------------------------------------------| |
| . | |
| . | |
| . |
| . |DRMMXB
| . |
| . | |
\ . \ |
|-------------------------------------------------------| |
| Drum Free Page Count - Cylinder n | |
+-------------------------------------------------------+ \ /
99
MONITOR TABLES
DSKSIZ
Disk Size Pointer Table. This table contains pointers to the disk
size data tables. DSKSIZ is parallel to DSKUTP which contains codes
for the known disk types. When an entry is added to DSKUPT, a
corresponding entry must be added to DSKSIZ to point to the correct
size data for that type of disk.
Defined in: PHYSIO
Format
+-------------------------------------------------------+
DSKSIZ: | Pointer to RP04 Table (DSKSZ0) |
|-------------------------------------------------------|
| Pointer to RP05 Table (DSKSZ0) |
|-------------------------------------------------------|
| Pointer to RP06 Table (DSKSZ1) |
|-------------------------------------------------------|
| Pointer to RP07 Table (DSKSZ2) |
|-------------------------------------------------------|
| Pointer to RM03 Table (DSKSZ3) |
|-------------------------------------------------------|
| Pointer to RP20 Table (DSKSZ4) |
|-------------------------------------------------------|
| Pointer to RA80 Table (DSKSZ5) |
|-------------------------------------------------------|
| Pointer to RA81 Table (DSKSZ6) |
|-------------------------------------------------------|
| Pointer to RA60 Table (DSKSZ7) |
|-------------------------------------------------------|
| Pointer to RA82 Table (DSKSZ8)(Future) |
|-------------------------------------------------------|
| Pointer to RA62 Table (DSKSZ9)(Future) |
+-------------------------------------------------------+
100
MONITOR TABLES
DSKSZ`N
Disk Size Table (for type n). The resident table contains size data
(for disks) based on type.
n = 0 for RP04 and RP05
n = 1 for RP06
n = 2 for RP07
n = 3 for RM03
n = 4 for RP20
n = 5 for RA80
n = 6 for RA81
n = 7 for RA60
n = 8 for RA82 (future)
n = 9 for RA62 (future)
Defined in: STG
Format
DSKSZ`n: +-------------------------------------------------+
SEGPAG=0 | Sectors per Page |
|-------------------------------------------------|
SECCYL=1 | Sectors per Cylinder |
|-------------------------------------------------|
PAGCYL=2 | Pages per Cylinder |
|-------------------------------------------------|
CYLUNT=3 | Cylinders per Unit |
|-------------------------------------------------|
SECUNT=4 | Sectors per Unit |
|-------------------------------------------------|
BTWCYL=5 | No. of Bit Words in Bit Table per Cylinder |
|-------------------------------------------------|
LPPCYL=6 | Lost Sectors per Surface |
|-------------------------------------------------|
MINFPG=7 | Minimum Free Pages for Free Choice Allocation |
|-------------------------------------------------|
MAXFPU=10 | Pages per Unit for DSKASN turning point |
|-------------------------------------------------|
SECSRF=11 | Sectors per Surface |
|-------------------------------------------------|
USSECU=12 | Microseconds per LATOPT sector unit |
|-------------------------------------------------|
| TRECPP=13 | True Section per Page (RAxx disks only) |
| +-------------------------------------------------+
101
MONITOR TABLES
DSKUTP
Disk Unit Type. This table contains the unit types used by the file
system.
Defined in: PHYSIO
Format
+-------------------------------------------------------+ / \
DSKUTP: | RP04 Disk Unit Code (.UTRP4 = 1) | |
|-------------------------------------------------------| |
| RP05 Disk Unit Code (.UTRP5 = 5) | |
|-------------------------------------------------------| |
| RP06 Disk Unit Code (.UTRP6 = 6) | |
|-------------------------------------------------------| |
| RP07 Disk Unit Code (.UTRP7 = 7) | |
|-------------------------------------------------------| |
| RM03 Disk Unit Code (.UTRM3 = 11) | |
|-------------------------------------------------------| |
| RP20 Disk Unit Code (.UTP20 = 24) |
|-------------------------------------------------------| NDSKUT
| RA80 Disk Unit Code (.UTR80 = 27) | |
|-------------------------------------------------------| |
| RA81 Disk Unit Code (.UTR81 = 30) | |
|-------------------------------------------------------| |
| RA60 Disk Unit Code (.UTR60 = 31) | |
|-------------------------------------------------------| |
| RA82 Disk Unit Code (.UTR82 = 32)(Future) | |
|-------------------------------------------------------| |
| RA62 Disk Unit Code (.UTR62 = 33)(Future) | |
+-------------------------------------------------------+ \ /
102
MONITOR TABLES
DST
Drum Status Table. This table is indexed as a function of the drum
(swapping space) address. The DST holds the address of the next lower
level of storage (usually disk) for the page stored at that address on
the drum.
BWRBIT (bit 11) indicates if the page has been changed since being
read from the lower level storage. The page is only copied back on to
the lower level storage if BWRBIT is set (that is, page modified) when
the page is no longer in use. A slot no longer in use contains a -1.
The DST table is in an extended section and is pointed to by DSTLOC.
Defined in: STG, PROLOG
Index: Drum page number
Format
11 14 35
+-------------------------------------------------------+ / \
DST: | || | Storage Address | |
|-------------------------------------------------------| |
| . | |
| . | |
| . |
| . | NDST
| . |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
103
MONITOR TABLES
DTE-STORAGE-AREA
DTE Storage Area. This storage area contains storage for each DTE.
It contains the Communication Area for each processor in COMBAS, the
linked output packet queues (pointed to by DTEQS), the DTE input
buffers, and local storage (that is, ACs, PC, & PDL) for the DTE
Protocol Handler, DTESRV.
A packet in the COMQ area must be reformatted to RSX20F protocol and
stored in PKTADR before being sent over the DTE. The before and after
packet formats are described below.
Two single packets, SNGPK1 and SNGPK2 (already formatted as direct
packets to RSX20F protocol - See below) are set aside for the DTSNGL
routine. This routine is responsible for activating lines and sending
single characters over the DTE if the output buffer has only one
character.
Normally output buffer characters are sent by way of indirect packets
over the DTE, where the indirect packet (after being reformatted and
stored in PKTADR) is sent first followed by the line's output buffer
characters.
Defined in: STG
Format
+-------------------------------------------------------+
UPFLAG: | Word to Generate Continued Message |
|-------------------------------------------------------|
LOAD11: | Says if -11 Needs to Reload |
|-------------------------------------------------------|
LODFRK: | Handle of Monitor Fork Doing -11 Reboot |
|-------------------------------------------------------|
DTEDTE: | The Interrupting DTE |
|-------------------------------------------------------|
CTYUNT: | FE Physical Unit for TS TTY |
|-------------------------------------------------------| / \
DTEQS: | Drive Queue Header for DTE 1 | |
| (Ptr. to 1st Queued Packet in COMQ) |
\ . \ DTEN
| . |
| Driver Queue Header for DTE n | |
|-------------------------------------------------------| \ /
COMQ: | |*/ \
| | |
| Area for Queue Packets | |
| (=Packet Size * ^D20) |
\ \ QPKT1
| |
| | |
| |
104
MONITOR TABLES
DTE-STORAGE-AREA (Cont.)
|-------------------------------------------------------| \ /
COMH: | Queue Header (Points to 1st Free Packet in COMQ) |
|-------------------------------------------------------| / \
DTESTS: | DTE 1 Status Word |* |
| . |
\ . \ DTEN
| DTE n Status Word | |
|-------------------------------------------------------| \ /
DTEST1: | DTE 1 Secondary Status Word |*/ \
| . | |
\ . \ DTEN
| DTE n Secondary Status Word | |
|-------------------------------------------------------| \ /
DTETMR: | DTE 1 Timer Variable | / \
| . | |
\ . \ DTEN
| DTE n Timer Variable | |
|-------------------------------------------------------| \ /
DTBFWD: | Hdr. Word for DTE 1 Buf |
| (Ptr. to 2nd Input Buf,, Ptr. to 1st Input Buf) |
\ . \
| . |
| Header Word for DTE n Buffer |
|-------------------------------------------------------|
DTETRA: | Interrupt Return PC for DTE 1 |
| . |
|-------------------------------------------------------|
| . |
| Interrupt Return PC for DTE 2 |
|-------------------------------------------------------| / \
DTESKP: | | |
| |
\ Local PDL Stack \ DTESZ
| |
| | |
|-------------------------------------------------------| \ /
DTEACB: | | / \
\ Block to Save ACs \ |
| | 16
|-------------------------------------------------------| \ /
DTEIND: | Storage for Indirect Function for DTE 1 |*/ \
| . | |
\ . \ DTEN
| Storage for Indirect Function for DTE n | |
|-------------------------------------------------------| \ /
DTEEND: | DTE 1 Resident free space debugging storage | / \
| . | |
\ . \ DTEN
| DTE n Resident free space debugging storage | |
105
MONITOR TABLES
DTE-STORAGE-AREA (Cont.)
|-------------------------------------------------------| \ /
DTEOBL: | DTE 1 Pointer to section zero output block | / \
| . | |
\ . \ DTEN
| DTE n Pointer to section zero output block | |
|-------------------------------------------------------| \ /
DTEIBL: | DTE 1 Pointer to section zero input block | / \
| . | |
\ . \ DTEN
| DTE n Pointer to section zero input block | |
|-------------------------------------------------------| \ /
DTEDID: | DTE 1 Router's circuit ID list | / \
| . | |
\ . \ DTEN
| DTE n Router's circuit ID list | |
|-------------------------------------------------------| \ /
DCNCID: | DTE 1 DECnet callback ID list | / \
| . | |
\ . \ DTEN
| DTE n DECnet callback ID list | |
|-------------------------------------------------------| \ /
PKTADR: | Storage for Queue Packets |*/ \
| (One 3-Word Packet/RSX20F Protocol DTE) | |
\ \ PKTSZ1
| | |
|-------------------------------------------------------| \ /
COMBUF: | Processor # | Index into COMBAS to get to this | / \-- --
| 4 | Processor's Comm Area | | | |
|-------------------------------------------------------| | | |
| 3 | '' |DTEN+1 |
|-------------------------------------------------------| | |
| 2 | '' | |Header|
|-------------------------------------------------------| |Area |
| 1 | '' | | | |
|-------------------------------------------------------| | | |
| 0 | '' | | | |
|-------------------------------------------------------| \ / -- |
COMBAS: | KL10 "Owned" Area |--* |
|-------------------------------------------------------| | |
| "To" DTE1 Area | | |
|-------------------------------------------------------| | |
| "To" DTE2 Area | Master |
|-------------------------------------------------------| Process |
| . | Comm |
| . | Area |
| . | |
106
MONITOR TABLES
DTE-STORAGE-AREA (Cont.)
|-------------------------------------------------------| | Communi-
| "To" DTEn Area | | cation
|-------------------------------------------------------|-- Region
| |--
| DTE1 "Owned" Area | DTE1 |
| | Comm |
|-------------------------------------------------------| Area |
| "To" KL10 Area | | |
|-------------------------------------------------------| | |
| . | | |
| . | | |
| . | | |
|-------------------------------------------------------|-- |
| |-- |
| DTEn "Owned" Area | | DTEn |
| | | Comm |
|-------------------------------------------------------| | Area |
| "To" KL10 Area |-- --
|-------------------------------------------------------| / \
TAD11: \ Time Packet from -11 \ 3
|-------------------------------------------------------| \ /
\ \ / \
TO11TM: \ Time Packet to -11 \ 3
|-------------------------------------------------------| \ /
\ \ / \
\ KLINIK Data Base \ KLISIZ
|-------------------------------------------------------| \ /
RLDFRK: | System wide handle of reload fork |
|-------------------------------------------------------|
SNGPK1: | Single-Packet-1 Header Word |
|-------------------------------------------------------| / \
\ Packet Data (5 Words) \ 5
| | \ /
|-------------------------------------------------------|
SNGPK2: | Single-Packet-2 Header Word | *
|-------------------------------------------------------| / \
\ Packet Data (5 Words) \ 5
| | |
+-------------------------------------------------------+ \ /
107
MONITOR TABLES
DTE-STORAGE-AREA (Cont.)
COMQ area for queue packets where a packet (5 words in length) has the
form:
0 17 18 35
+-------------------------------------------------------+
| QINT | QLINK |
| Int loc for this function | Link to next packet |
|-------------------------------------------------------|
QNSPH | QFNC | QDEV |
| Function work for | DTE device code |
| this request | for this request |
|-------------------------------------------------------|
|0 QLIN 17| QMODE |19 QCNT 35|
| Device unit number | Data | Byte count or |
| |must be | byte |
| | byte | or 0 |
| | mode | |
|-------------------------------------------------------|
| QPNTR |
| Byte pointer for indirect operation or |
| Local 8-bit datum if QCNT = 0 |
|-------------------------------------------------------|
| QCOD |
| Unique code returned to interrupt routine, TTYINT |
+-------------------------------------------------------+
COMQ area is currently assembled for room of ^D20 packets.
108
MONITOR TABLES
DTE-STORAGE-AREA (Cont.)
0 1 2 3 4 5 6 17 18 29 30 35
+-------------------------------------------------------+
DTESTS | | | | | | | DTEB1 | DTEBC | DTEST |
entry +-------------------------------------------------------+
Bits Pointer Contents
0 DTERL If set, DTE exists
1 DTEBF Says which buffer is in use for
RSX20 protocol
2 DTBLK For MCB, to -10 is blocked on
free space
3 DTRLD If set, -11 is being reloaded
4 DTKAC If set, -11 is ill
5 DTSTI Status packet is split
6-17 DTEB1 Byte count of list transfer
18-29 DTEBC Byte count remaining for
subsequent transfer
31 DTIPU If set, protocol is running
32-35 DTEST DTE status
DTET10=1--KL10 is receiving
last fragment of message
DTE11=2--11 is receiving bytes
DTE11I=4--11 is receiving an
indirect queue entry
DTE1F=10--KL10 is receiving 1st
fragment of a message
109
MONITOR TABLES
DTE-STORAGE-AREA (Cont.)
DTEST1 is parallel to DTESTS and contains current operation data and
special request bits for "To" -11 conditions.
0 15 16 31 32 33 34 35
+-------------------------------------------------------+
DTEST1 |DT1FC |DT1DV | | | |
entry +-------------------------------------------------------+
Bits Pointer Contents
0-15 DT1FC Current function code
16-31 DT1DV Current device code
32 DT1TM -11 wants time of day
33 DT1ID Waiting for indirect setup
Storage for indirect packets:
0 7 8 15 16 17 35
+--------------------------------------------------------+
DTEIND | INUNT | INCNT | | |
entry +--------------------------------------------------------+
Bits Pointer Contents
0-7 INUNT Unit
8-15 INCNT Count
16 INVLD If set, says unit field is invalid
PKTADR is storage for currently activated DTE packets for each DTE
(packet taken from the linked list of packets on the queue in COMQ and
placed here). The packet has the following form:
0 15 16 31 32 35
+-------------------------------------------------------+
| HDCNT | HDFNC | |
| Count | Function | |
|-------------------------------------------------------|
| HDDEV | HDSPR | |
| Device code | Spare | |
|-------------------------------------------------------|
| 7|8 | HDDT1 | |
| HDLIN | HDDAT | Datum for a single | |
| Line # | Datum * | datum packet | |
+-------------------------------------------------------+
Datum could be a character (direct packet case) or
Max number of characters to be sent (indirect packet case)
110
MONITOR TABLES
DTE-STORAGE-AREA (Cont.)
COMBAS "Owned" Area Block Format
+-------------------------------------------------------+
| Flags | *
|-------------------------------------------------------|
| CMLNK |
| Pointer to next processor |
|-------------------------------------------------------|
| |
\ \
| |
|-------------------------------------------------------|
KPALIV | CMKAC |
=5 | Processor Keep Alive Count |
|-------------------------------------------------------|
CMPCW=6 | PC word |
|-------------------------------------------------------|
CMPIWD | CONI PI, word |
=7 |-------------------------------------------------------|
CMPGWD | CONI PAG, word |
=10 |-------------------------------------------------------|
CMPDWD | DATAI PAG, word |
=11 |-------------------------------------------------------|
CMAPRW | CONI APR, word |
=12 |-------------------------------------------------------|
CMDAPR | DATAI APR, word |
=13 |-------------------------------------------------------|
| |
\ \
| |
+-------------------------------------------------------+
0 1 3 4 5 6 11 12 16 17 19 20 35
Word 0 +-------------------------------------------------------+
| | | | CPVER | CMNPR | |CMNAM |
+-------------------------------------------------------+
Bits Pointer Contents
0 CMTEN Set if area belongs to KL10
1-3 CMVER Communication area version number
6-11 CPVER Protocol version number
12-16 CMNPR Number of processors represented
in this area (including owner)
17-19 CMSIZ Size of area in 8-word blocks
20-35 CMNAM Processor name (= serial number)
111
MONITOR TABLES
DTE-STORAGE-AREA (Cont.)
"To" Area Block Format
+-------------------------------------------------------+
| Flags | *
|-------------------------------------------------------|
| CMPPT |
| Pointer to "To" processor's owned communication area |
|-------------------------------------------------------|
| Flags | *
|-------------------------------------------------------|
|0 3|4 19|20 35|
|CMTMD | CMPCT | CMQCT |
| Mode | Piecemeal Ctr. (Bits | Count of words in |
| of |0-19 used by prot. ver.| current queue |
| xfer | VNMCB only) | |
|-------------------------------------------------------|
| CMRLF |
| Reload parameter for "To" processor |
|-------------------------------------------------------|
| CMKAK |
|Owning processor's copy of "To" processor's Keep Alive |
+-------------------------------------------------------+
0 1 2 3 4 10 11 16 17 19 20 35
+-------------------------------------------------------+
Word 0 | | | | | | | CNPNM |
+-------------------------------------------------------+
Bits Pointer Contents
0 CMPRO If set, it implies connected to
a KL10
1 CMDTE If set, there is a DTE connecting
this processor and owning
processor
2-3 CMDTN If CMDTE is set, this is the number
of that connecting DTE
11-16 CMVRR Protocol in use by the 2 processors
17-19 CMSIZ Size of "to" area in 8-word blocks
20-35 CMPNM "To" processor number
112
MONITOR TABLES
DTE-STORAGE-AREA (Cont.)
0 1 2 3 4 12 13 14 16 17 18 19 20 27 28 35
+-------------------------------------------------------+
Word 2 | | | | | | | | | | | CMOIC | CM1IC |
+-------------------------------------------------------+
Symbol Bits Pointer Contents
0 CMPWF Power fail indicator -11
1 CML11 Wants reload (set by -11)
2 CMINI Initialization bit for MCB
protocol only
3 CMTST Valid examine if set
(should always be set)
13 CMQP Set if using queued protocol
17 CMFWD -11 doing full word transfer
(set by -11)
CMIP 18 -11 doing indirect transfer
CMTOT 19 "Toit" bit. Set to 1 by KL10
in -11's section of -10's
Comm area after -11 sets
QMode bit or increments
Q-count, and after -10
processes the doorbell.
Cleared by KL10 after
receiving T010DN. Assures
-11 that the KL10 has not
lost a T010DN interrupt
20-27 CMOIC -11s wrap around count of
direct Q transfer
28-35 CM1IC KL10's wrap around count of
direct Q transfers.
0 7 8 16 17 24 25 31 32 35
SNGPK1 +-------------------------------------------------------+
/2 | Flags | Link to next packet | | *
|-------------------------------------------------------|
| Packed byte count | Function | |
|-------------------------------------------------------|
| Device | Spare | |
|-------------------------------------------------------|
| Line # | Datum | Line # | Datum | |
|-------------------------------------------------------|
| Line # | Datum | Line # | Datum | |
|-------------------------------------------------------|
| Line # | Datum | Line # | Datum | |
+-------------------------------------------------------+
113
MONITOR TABLES
DTE-STORAGE-AREA (Cont.)
0 1 2 3 16 17 31 32 35
+-------------------------------------------------------+
Header | | | | | | |
Word +-------------------------------------------------------+
Symbol Bits Contents
SNGONQ 0 On the DTE packet queue pointed
to by DTEQS
SNGAVL 1 Packet has space available
SNGACT 2 Packet active
(that is, DTE processing it)
16-31 Link to next packet
114
MONITOR TABLES
DTEDTV
DTE Protocol Device Dispatch Table. The entries with the dispatch
address TTYDTV are for the CTY, DL11, DH11 and DLS devices.
Defined in: STG
Format
+-------------------------------------------------------+
DTEDTV: | Reserved for Unknown Device |
|-------------------------------------------------------|
| TTYDTV |
|-------------------------------------------------------|
| TTYDTV |
|-------------------------------------------------------|
| TTYDTV |
|-------------------------------------------------------|
| TTYDTV |
|-------------------------------------------------------|
| LPTDTV |
|-------------------------------------------------------|
| CDRDTV |
|-------------------------------------------------------|
| 0 (Unknown Device) |
|-------------------------------------------------------|
| FEDTV |
+-------------------------------------------------------+
115
MONITOR TABLES
EC
This is the DECnet event communication block, a communications area
between a layer and NTMAN.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
| ECLOS | ECCNT |
| Count of "events lost" | Count of events on queue |
|------------------------------------------------------------------------|
| | | | | ECETY |
| * | | |ECLAY| | Entity type of DECnet device this |
| | | | | EC block belongs to |
|------------------------------------------------------------------------|
ECEID | Entity ID of DECnet device this EC block belongs to |
|------------------------------------------------------------------------|
| ECMAX | |
| Maximum number of events on queue | |
| allowed | |
+------------------------------------------------------------------------+
Field ECDEL (0-0) This EC block marked for deallocation
Field ECLAY (3-5) DECnet layer this EC block belongs to
116
MONITOR TABLES
EL
The DECnet EL structure (Link Block) holds all the NSP information
about this logical link.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+ /\
ELAPQ | Next in queue of all link blocks | QP.LEN
\ \ \/
|------------------------------------------------------------------------| /\
ELHBQ | Next in queue of links in a hash bucket | QP.LEN
\ \ \/
|------------------------------------------------------------------------| /\
ELJFQ | Next in queue of links needing jiffy service | QP.LEN
\ \ \/
|------------------------------------------------------------------------|
| | | | | | | | | ELSTA | | ELSIZ |
| ELFLG | NSP state | |Max size of a segment on this link | *
| | of this | | |
| | link | | |
|------------------------------------------------------------------------|
| ELLLA | ELRLA |
| Local link address | Remote link address |
|------------------------------------------------------------------------| /\
ELORQ | Queue header for MBs sent to ROUTER and expected to be returned to | QH.LEN
\ LLINKS \ \/
|------------------------------------------------------------------------|
ELCLC | Count of retries left, trying to close a port waiting for MBs to be |
| returned from ROUTER and children |
|------------------------------------------------------------------------|
| ELORC | | | ELDSG |
| Count of msgs out in ROUTER | | | Msg segment being |
| | | | timed for delay calc |
| | | | (must be segnum-size |
| | | | field for CMODxx) |
|------------------------------------------------------------------------|
ELDTM | Time msg was first sent |
|------------------------------------------------------------------------|
| ELNNM | |
| The remote's node number | |
|------------------------------------------------------------------------|
ELNDB | Ptr to NSP node block |
|------------------------------------------------------------------------|
ELTMA | Inactivity timer |
|------------------------------------------------------------------------|
ELSCV | Session control call vector base address |
|------------------------------------------------------------------------|
ELSCB | Session control block ID |
|------------------------------------------------------------------------|
ELCIM | Ptr to (R)CI message |
117
MONITOR TABLES
EL (Cont.)
|------------------------------------------------------------------------|
ELDIM | Ptr to DI message |
|------------------------------------------------------------------------| /\
ELNSL | The normal sublink block | ES.LEN
\ \ \/
|------------------------------------------------------------------------| /\
ELOSL | The other sublink block | ES.LEN
\ \ \/
|------------------------------------------------------------------------|
ELCIR | Output circuit for loopback connection |
|------------------------------------------------------------------------|
ELCHK | Address of this EL, for addr check |
+------------------------------------------------------------------------+
For field ELFLG(0-8):
ELOJQ 0 Link is on the jiffy-request queue
ELSNC 1 Set if not yet told SC about no conf
ELCNF 2 Set if we have confidence in link
ELSCM 3 Send connect ACK message next jiffy
ELSDM 4 Send disconnect confirm message next jiffy
ELABO 5 Aborting this logical link
ELDTO 6 Delay timer is for "other" sublink
Field ELVER (18-20) Version of remote NSP, see VER3.1,VER3.2
118
MONITOR TABLES
ENQ/DEQ-LOCK-BLOCK
Enqueue Lock-Block. Each resource is described in a lock-block. The
lock-block is created at the time of the first request.
Defined in: ENQ
Format
0 17 18 35
+-------------------------------------------------------+
0 | ENQLHC |
| Back Pointer to Last |
| Lock-Block on Hash Chain |
|-------------------------------------------------------|
1 | ENQNHC |
| Pointer to Next |
| Lock-Block on Hash Chain |
|-------------------------------------------------------|
2 | ENQLLQ |
| Back Pointer to |
| Last Q-Block on Lock Queue |
|-------------------------------------------------------|
3 | ENQNLQ |
| Forward Pointer to |
| First Q-Block on Lock Queue |
|-------------------------------------------------------|
| ENQFLG | | ENQLVL |
4 | Flags | Reserved | Level Number | *
| | | of this Lock |
|-------------------------------------------------------|
| ENQTR | ENQRR |
5 | Total Number of | Remaining Number of |
| Resources in this Pool | Resources in this Pool |
|-------------------------------------------------------|
| ENQTS |
6 | Time Stamp |
| Time of Last Request Locked |
|-------------------------------------------------------|
7 | ENQFBP |
| Free Block Pointer |
| to Free Q-Block |
|-------------------------------------------------------|
10 | ENQLT |
| Long Term Lock List |
| for System |
|-------------------------------------------------------|
| ENQOFN | ENQLEN |
11 | OFN, or -2, or -3, | Length of this |
| or 400000 + Job Number | Lock-Block |
119
MONITOR TABLES
ENQ/DEQ-LOCK-BLOCK (Cont.)
|-------------------------------------------------------|
| | ENQNMS | ENQHSH |
| 12 | Number of Words in | Hash value for this |
| | the Mask Block | Lock Block |
| |-------------------------------------------------------|
| | ENQAFP |
| 13 | Forward Pointer to Lock Block Action List |
| |-------------------------------------------------------|
| | ENQABP |
| 14 | Backward Pointer to Lock Block Action List |
| |-------------------------------------------------------|
| | ENQTXT ASCIZ String |
| 15 | or |
| | 500000,,0 + User Code |
| +-------------------------------------------------------+
The flags word must occur in the same position in both the Lock-Block
and the Q-Block. The flags word is used to distinguish a Lock-Block
from a Q-block.
|
| Defined in: ENQPAR
0 11 12 17 18 35
+-------------------------------------------------------+
Word 4 | ENQFLG | | ENQLVL |
| Flags | Reserved | Level # of this Lock |
+-------------------------------------------------------+
Symbol Bits Pointer Meaning
| 0-2 Unused
| EN.SDO=400 3 Scheduling pass needed on
| Lock-Block
| EN.CLL=200 4 Cluster-wide queue block or
| Cluster-wide lock-block
| EN.NOV=100 5 No vote for this lock-block
| Set during caching and for -1
| type locks
EN.LTL=40 6 Long Term Lock
EN.INV=20 7 This Q-Block is invisible
EN.LOK=10 8 The Q-Block has the Lock
Locked.
EN.TXT=4 9 This Block has a Text
String Identifier.
EN.EXC=2 10 Request is Exclusive
EN.LB=1 11 This is the Lock-Block
12-17 Reserved
18-35 ENQLVL Level # of this lock.
120
MONITOR TABLES
ENQ/DEQ - STORAGE AREA
Enqueue/Dequeue Storage Area. The non-resident local area for the
ENQ/DEQ Facilty is illustrated first followed by the resident bit
table, ENFKTB. A bit is set in the ENFKTB bit table if the fork
should be woken up or interrupted because it owns a lock. (The
Scheduler's wake-up test routine address is ENQTST.)
Defined in: STG
Format
+-------------------------------------------------------+ / \
HSHTBL: | |* |
| Hash table for |
| ENQ locks | HSHLEN* 2
| Two words per logical slot |
\ \ |
|-------------------------------------------------------| \ /
ENQLOK: | Data base lock for ENQ and DEQ |
| (-1 if free) |
|-------------------------------------------------------|
ENQLTL: | List of long term locks |
|-------------------------------------------------------|
ENQLTS: | Time of next garbage collection |
+-------------------------------------------------------+
Each logical slot in HSHTBL is two words long:
+-------------------------------------------------------+
HSHTBL: | Back Pointer |
|-------------------------------------------------------|
| Forward Pointer |
|-------------------------------------------------------|
| Back Pointer |
|-------------------------------------------------------|
| Forward Pointer |
+-------------------------------------------------------+
.
.
.
+-------------------------------------------------------+
| Back Pointer |
|-------------------------------------------------------|
| Forward Pointer |
+-------------------------------------------------------+
121
MONITOR TABLES
ENQ/DEQ - STORAGE AREA (Cont.)
| Resident storage
|
| +-------------------------------------------------------+
| ELBCSH: | Lock-Block Caching Flag (-1 if caching) |
| |-------------------------------------------------------|
ENFKTB: | Wake-up table (one bit per fork) |
| . |
\ . \
|-------------------------------------------------------|
LCKDBT: | Bit table for DIR lock ENQ/DEQ (one bit per fork) |
| . |
\ . \
+-------------------------------------------------------+
* The name (or identifying number) of a lock block is hashed to
provide a number. This number, module HSHLEN, then doubled, is used
as an index into HSHTBL. If the hashing algorithm yields the same
index for more than one lock block name, the lock blocks are linked
together; the HSHTBL entry is the linked list header.
122
MONITOR TABLES
EPT
Executive Process Table. This memory resident table pointed to by the
Executive Base Register (EBR), contains the vectored dispatch
addresses for system events. All device interrupts pass control to a
specific offset position in this table.
This table also includes the executive section map table, the time of
day clock and arithmetic trap instructions which are executed when
arithmetic conditions occur in executive mode.
Defined in: STG
Format
+-------------------------------------+
KIEPT: | Eight Channel Logout Areas |
| |
|Each: 0 Initial Channel Command |
| 1 Gets Channel Status Word |
| 2 Gets Last Updated Command |
| 3 Reserved for Channel's |
| Vectored Interrupt Location |
KIEPT+37\ \
|-------------------------------------|
40| |
| |
|Standard Priority Interrupt Instruc. |
57\ \
|-------------------------------------|
60| |
| Four Channel Block Fill Words |
63| |
|-------------------------------------|
64| |
| Reserved |
.| |
77\ \
|-------------------------------------|
SMTEPT=KIEPT+100| (if 2020 System) |
|-------------------------------------|
101| |
| |
| Reserved |
137\ \
123
MONITOR TABLES
EPT (Cont.)
|-------------------------------------|
| Four 8-word DTE20 Control Blocks |
DTEEBP=KIEPT+140| Each: 0 To -11 Byte Pointer |
DTETBP=KIEPT+141| 1 To -10 Byte Pointer |
DTEINT=KIEPT+142| 2 Interrupt Location |
143| 3 Reserved |
DTEEPW=KIEPT+144| 4 Examine Protection Word |
DTEERW=KIEPT+145| 5 Examine Relocation Word |
DTEDPW=KIEPT+146| 6 Deposit Protection Word |
DTEDRW=KIEPT+147| 7 Deposit Relocation Word |
|-------------------------------------|
| |
| DTE1 Control Block |
| |
|-------------------------------------|
| |
| DTE2 Control Block |
\ \
|-------------------------------------|
| |
| DTE3 Control Block |
177\ \
|-------------------------------------|
EPTMHI=KIEPT+200| |
| |
| Available to Software |
| |
417\ \
|-------------------------------------|
EPTTPI=KIEPT+420| LUUO from Executive Mode |
| (.LUTRP)* |
|-------------------------------------|
421| Executive Arithmetic Overflow Trap |
| Instruction (JFCL)* |
|-------------------------------------|
422| Executive Stack Overflow trap |
| Instruction (.PDOVT)* |
|-------------------------------------|
423| Executive Trap 3 Trap Instruction |
| (JFCL)* |
|-------------------------------------|
424| |
| Reserved |
437\ \
|-------------------------------------|
440| |
| Reserved for Software |
443\ \
124
MONITOR TABLES
EPT (Cont.)
|-------------------------------------|
DTEFLG=KIEPT+444| Operation Complete Flag |
|-------------------------------------|
DTECFK=KIEPT+445| Clock Interrupt Flag |
|-------------------------------------|
DTECKI=KIEPT+446| Clock Interrupt Instruction |
|-------------------------------------|
DTET11=KIEPT+447| "To" 11 Argument |
|-------------------------------------|
DTEF11=KIEPT+450| "From" 11 Argument |
|-------------------------------------|
DTECMD=KIEPT+451| Command Word |
|-------------------------------------|
DTESEQ=KIEPT+452| DTE20 Operation Sequence Number |
|-------------------------------------|
DTEOPR=KIEPT+453| Operation in Progress Flag |
|-------------------------------------|
DTECHR=KIEPT+454| Last Typed Character |
|-------------------------------------|
DTETMD=KIEPT+455| Monitor TTY Output Complete Flag |
|-------------------------------------|
DTEMTI=KIEPT+456| Monitor TTY Input Flag |
|-------------------------------------|
DTESWR=KIEPT+457| Console Switch Register |
|-------------------------------------|
460| |
| Reserved for Software |
477\ \
|-------------------------------------|
500| |
| Reserved |
507\ \
|-------------------------------------|
TIMBAS=KIEPT+510| |
| Time Base |
511| |
|-------------------------------------|
512| |
| Performance Analysis Count |
513| |
|-------------------------------------|
TIMVIL=KIEPT+514| Internal Counter Interrupt Instruc. |
|-------------------------------------|
MSECTB=KIEPT+540| EXEC SECTION 0 |
| |
| |
| |
577\ EXEC SECTION 37 \
125
MONITOR TABLES
EPT (Cont.)
|-------------------------------------|
EPTMLO=KIEPT+600| |
| |
EPTLBP=KIEPT+700|-------------------------------------|
| OWGBP Microcode Table Storage |
722|-------------------------------------|
| |
| |
| |
777\ Available to Software \
+-------------------------------------+
* These values are placed into the table when the EPT is
initialized at system startup.
126
MONITOR TABLES
ES
The DECnet Sublink Block is part of the link block. It holds the
information about the "normal" and the "other" sublinks.
The structure name ES is used instead of the more obvious NS (NSP
Sublink) to avoid a conflict with the other NS structure defined in
this universal file. The "E" stands for the new name for the NSP
layer: "End-to-end" layer.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
| | | | | | | | | | | | | | ESGOL | ESCGL |
| ESFLG | | | | | Data request |After-congestion | *
| | | | | | goal (9 for DDT | recovery goal |
| | | | | | ease) | |
|------------------------------------------------------------------------|
| ESXLD | ESXRD | ESXSD | |
| Xmit DRQS | Xmit DRQS |Xmit DRQS need | |
|outstanding to |outstanding to | to send to SC | |
| local SC | remote NSP | | |
|------------------------------------------------------------------------|
| ESRLD | ESRRD | ESRSD | |
| Receive DRQS | Receive DRQS | Receive DRQS | |
|outstanding to |outstanding to | need to send | |
| local SC | remote NSP | to SC | |
|------------------------------------------------------------------------|
| ESLMA | ESLAR | ESLMR |
| Last message number |Last ACK received (and | Last message received |
| assigned | processed) | |
|------------------------------------------------------------------------| /\
ESAKQ | Queue header for the to-be-acked Q | QH.LEN
\ \ \/
|------------------------------------------------------------------------| /\
ESRCQ | Queue header for the receive Q | QH.LEN
\ \ \/
|------------------------------------------------------------------------| /\
ESXMQ | Queue header for the xmit Q | QH.LEN
\ \ \/
|------------------------------------------------------------------------|
| ESCWS | ESCDA | ESDLT |
| Current window size | # of ACKs since last | ACK delay timer |
| | window change | |
+------------------------------------------------------------------------+
127
MONITOR TABLES
ES (Cont.)
For field ESFLG(0-11):
ESOTH 0 Set if this is other sublink
ESACK 1 Send ACK for this sublink next jiffy
ESNAK 2 Send NAK to PH2 NSP (turn ACK on too)
ESROF 3 Receive is off
ESROC 4 Receive off has changed
ESXOF 5 Xmit is off
ESBFR 6 Remote is "buffer-rich" on this link
ESDLY 7 ACK delaying allowed
Field ESRFL (13-14) Receive flow control type
Field ESXFL (16-17) Xmit flow control type
128
MONITOR TABLES
ET
For test and debug purposes, there is an extra function of the NTMAN
JSYS. This function logs an event or signal.
The function code is -5 (.NTTEV)
The entity ID and type for the event are taken from the standard words
in the NTMAN argument block.
Word .NTSEL points to a secondary argument block of the following
layout.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
| | | ETCNT | *
| | | Replication count |
|------------------------------------------------------------------------|
| ETCCL | ETCTY | ETDLN |
| Event class | Event | Data length in bytes |
| | type | |
|------------------------------------------------------------------------| /\
ETDAT | Space for data | <44/4>
\ \ \/
+------------------------------------------------------------------------+
Field ETSIG (0-0) Set if this is a signal
129
MONITOR TABLES
EXEC-PG-MAP-TBL
Executive Page Map Table. This 512-word memory resident table holds
or points to other tables that hold all of the mapping information
needed by the firmware to translate executive (monitor) virtual
addresses in a given section into physical memory addresses. It is
pointed to by an entry in the monitor's section table in the Executive
Process Table (EPT).
The four possible formats for an entry in this table (that is,
Immediate, shared, indirect or null pointers) are illustrated below.
The details of these four possible pointer words as well as the
mechanics of the virtual to physical translation process for a monitor
page is identical to that described for the User-Page Map Table (See
User-Pg-Map-Tbl)
Defined in: STG
Format
+-------------------------------------------------------+
MMAP: * | Immediate Pointer | / \
|-------------------------------------------------------| |
|0 2|3 8| |12 35| |
| Op |Access | | STGADR | |
|Code 1| Bits | | Storage Address | |
|-------------------------------------------------------| |
| or Shared Pointer | |
|-------------------------------------------------------| |
|0 2|3 8| |18 35| |
| Op |Access | | SPTX | |
| Code | Bits | | SPT. index | |
| 2 | | | (Holds Pg's Stor Adr.) |
|-------------------------------------------------------| Virtual
| or Indirect Pointer | Pg #
|-------------------------------------------------------| 0-777
|0 2|3 8|9 17|18 35 |
| Op |Access | IPPGN | SPTX | |
| Code | Bits | PN | SPT index | |
| 3 | | | (Holds Pg Tb's Stor. Adr) | |
|-------------------------------------------------------| |
| or Null Pointer | |
|-------------------------------------------------------| |
|0 2|3 8| | |
| Op |Access | 0 (Nonexistent Pg) | |
|Code 0| Bits | | |
|-------------------------------------------------------| |
\ . \ \ /
+-------------------------------------------------------+
* Currently MMAP is the monitor's page map table for section 0 and
section 1. The layout of the monitor's virtual address space for
section 0 is described in Appendix B of the Monitor Structures Book.
130
MONITOR TABLES
FA
This is the DECnet Filter argument block which is used to pass
arguments to the EV.FIL function of NMXEVT.
Defined in: D36PAR
Format
Filter argument block
+------------------------------------------------------------------------+
| FACCL | FACTY |
| Event class | Event type |
+------------------------------------------------------------------------+
131
MONITOR TABLES
FB
This is the Free Block pointer used by DECnet for maintaining a list
of free storage.
Defined in: D36COM
Format
+------------------------------------------------------------------------+
FBNXT | Forward pointer in a free block |
+------------------------------------------------------------------------+
132
MONITOR TABLES
FDB
File Description Block. All attributes of a file are stored in its
description block (FDB) maintained in the file's directory. An FDB is
built in the directory's free space area when a file is created. This
table is referenced by the DIR table.
Defined in: PROLOG, MONSYM
Format
+-------------------------------------------------------+
.FBHDR |0 17|18 23|24 35|
=0 | FBTYP | FBVER | FBLEN |
| .TYFDB (400100) | Ver. # | Length |
|-------------------------------------------------------|
.FBCTL |0 35|
=1 | FBFLG | *
| Flags |
|-------------------------------------------------------|
.FBEXL | 2|3 FBEXL |
=2 | | Link to FDB of Next Extension |
|-------------------------------------------------------|
.FBADR | FBADR |
=3 | Disk Address of File's Index Block |
|-------------------------------------------------------|
.FBPRT | FBPRT |
=4 | Protection of the file |
| 500000 | File Access Bits |
|-------------------------------------------------------|
.FBCRE | FBCRE |
=5 | Date and Time of Last Write to File |
|-------------------------------------------------------|
.FBAUT | FBAUT |
=6 | Pointer to Author String |
|-------------------------------------------------------|
.FBGEN | FBGEN |FBDRN | *
=7 | Generation Number | Dir.# (if it's a Dir File)|
|-------------------------------------------------------|
.FBACT | FBACT |
=10 | 500000,,0 + Account Number |
| or |
| Pointer to Account String |
|-------------------------------------------------------|
.FBBYV |0 5|6 11| |14 17|18 35| *
=11 | FBGNR | FBBSZ | |FBMOD | FBNPG |
|# Gens. |Byte Sz | | Mode | # of Pages in File |
|-------------------------------------------------------|
.FBSIZ | FBSIZ |
=12 | # of Bytes in File |
133
MONITOR TABLES
FDB (Cont.)
|-------------------------------------------------------|
.FBCRV | FBCRV |
=13 | Date and Time of Creation |
|-------------------------------------------------------|
.FBWRT | FBWRT |
=14 | Date and Time of Last User Write |
|-------------------------------------------------------|
.FBREF | FBREF |
=15 | Date and Time of Last Nonwrite Access |
|-------------------------------------------------------|
.FBCNT | FBNWR | FBNRF |
=16 | # of Writes | # of References |
|-------------------------------------------------------|
.FBBK0 | FBBK0 | *
=17 | Backup Word #1 |
|-------------------------------------------------------|
.FBBK1 | FBBK1 |
=20 | Backup Word #2 |
|-------------------------------------------------------|
.FBBK2 | FBBK2 |
=21 | Backup Word #3 |
|-------------------------------------------------------|
.FBBBT | FBBBT | *
=22 | Tape system flag bits |
|-------------------------------------------------------|
.FBNET | FBNET |
=23 | Date and time of online expiration |
|-------------------------------------------------------|
.FBUSW | FBUSW |
=24 | User Settable Word |
|-------------------------------------------------------|
.FBGNL | 2|3 FBGNL |
=25 | | Link to FDB of Next Generation |
|-------------------------------------------------------|
.FBNAM | FBNAM |
=26 | Pointer to File Name Block |
|-------------------------------------------------------|
.FBEXT | FBEXT |
=27 | Pointer to Extension Block |
|-------------------------------------------------------|
.FBLWR | |
=30 | Pointer to Last Writer String |
|-------------------------------------------------------|
.FBTDT | FBTDT |
=31 | Date and time of archive/collection tape write |
|-------------------------------------------------------|
.FBFET | FBFET |
=32 | Date and time of off-line expiration |
134
MONITOR TABLES
FDB (Cont.)
|-------------------------------------------------------|
.FBTP1 | ARTP1 |
=33 | Tape ID for first archive/collection run |
|-------------------------------------------------------|
.FBSS1 | TSN1 | TFN1 |
=34 | Saveset # for 1st tape | Tape file # in saveset |
|-------------------------------------------------------|
.FBTP2 | ARTP2 |
=35 | Tape ID for second archive/collection run |
|-------------------------------------------------------|
.FBSS2 | TSN2 | TFN2 |
=36 | Saveset # for 2nd tape | Tape file # in saveset |
+-------------------------------------------------------+
0 1 2 3 4 5 6 7 8 9 0 1 2 3 14 17 18 19 20 35
+-------------------------------------------------------+
.FBCTL | | | | | | | | | | | | | | | | | | | |
+-------------------------------------------------------+
Symbol Bits DEFSTR Content
FB%TMP 0 FBTMP File is temporary
FB%PRM 1 FBPRM File is permanent
FB%NEX 2 FBNEX No extension for this file
yet; file doesn't really exist.
FB%DEL 3 FBDEL File is deleted
FB%NXF 4 FBNXF File doesn't exist (first
write not complete)
FB%LNG 5 FBLNG Long file
FB%SHT 6 FBSHT Reserved for DEC
FB%DIR 7 FBDIR File is a directory
FB%NOD 8 FBNOD File is not saved by backup
system
FB%BAT 9 File may have bad pages
FB%SDR 10 FBSDR This directory has subdirectories
FB%ARC 11 FBARC File has archive status
FB%INV 12 FBINV File is invisible
FB%OFF 13 FBOFF File is off-line
FB%FCF 14-17 File class field
0 = .FBNRM Not an
RMS file
1 = .FBRMS RMS file
FB%NDL 18 File is not delete table
FB%WNC 19 Last write not closed
FB%FOR 20 FORTRAN data file
| FB%SEC 21 File is secure
| (ACJ consulted on each access)
135
MONITOR TABLES
FDB (Cont.)
0 17 18 35
+-------------------------------------------------------+
.FBGEN | FBGEN | FBDRN |
+-------------------------------------------------------+
Symbol Bits DEFSTR Content
FB%GEN 0-17 FBGEN Generation number
FB%DRN 18-35 FBDRN Directory number
0 5 6 11 2 3 14 17 18 35
+-------------------------------------------------------+
.FBBYV | | | | | |
+-------------------------------------------------------+
Symbol Bits DEFSTR Content
FB%RET 0-5 FBGNR Generation retention count
FB%BSZ 6-11 FBBSZ Byte size
FB%MOD 14-17 FBMOD Last OPENF mode
FB%PGC 18-38 FBNPG Page count
0 1 2 3 4 5 6 7 8 15 17 18 35
+------------------------------------------------------+
.FBBBT | | | | | | | | | | | | |
+------------------------------------------------------+
Symbol Bits DEFSTR Content
AR%RAR 1 K0RAR Request for file to be archived
AR%RIV 2 K0RIV System request for migration
AR%NDL 3 K0NDL Do not delete disk contents
after archiving
AR%NAR 4 K0NAR Resist migration
AR%EXM 5 K0EXM File is exempt from migration
AR%1ST 6 K01ST First pass is in progress
AR%RFL 7 K0RFL Restore failed
AR%WRN 8 User warned of file expiration
AR%RSN 15-17 K0RSN Reason file pushed off-line:
1 = .AREXP File expired
2 = .ARARR Archive requested
3 = .ARRIR Migration requested
AR%PSZ 18-35 ARPSZ Number of pages in file when
removed from disk
136
MONITOR TABLES
FDB (Cont.)
FBBK0 is used by DUMPER as follows:
0 1 17 18 35
+-------------------------------------------------------+
.FBBK0 | | | |
+-------------------------------------------------------+
Bits Contents
0 Indicator for interrupted incremental save
1-17 Count of incremental saves since last time
write count changed
18-35 Write count at last incremental save
NOTE
For additional information on the FDB see the Monitor
Call's Reference Manual.
137
MONITOR TABLES
FE-STORAGE-AREA
Front End Storage Area. Each entry is FEN words long (except the
lock--FELOCK), where FEN equals the number of front end devices.
Defined in: STG
Format
+-------------------------------------------------------+ / \
FEUDB0: | | FEFEM | FEFRK | * |
\ Flags | FE Alloc | Fork # Owning Device \ FEN
+-------------------------------------------------------+ \ /
FEUDB1: | FEICT | | FEFEI | / \
| Current Input | unused | Bytes Now in FE | FEN
\ Byte Count | | \ \ /
|-------------------------------------------------------| / \
FEUDB5: | | * |
\ Byte information \ FEN
|-------------------------------------------------------| \ /
FEUDB6: | | / \
\ Output output pointer \ FEN
|-------------------------------------------------------| \ /
FEUDB7: |0 11|12 23|24 35| / \
| FEIE1 | FEOEB | FEIEB | FEN
|Bytes remain. for|Bytes remain. for |Bytes remain. for | |
\ input level |output int. level | input int. level \ \ /
|-------------------------------------------------------|
|0 17|18 23|24 35| / \
| FEIBF | FEBSZ | FEOCT |
| Buffer Address | Byte Size | Output | FEN
\ | of Opening | Count \ \ /
|-------------------------------------------------------| / \
FEUDB4: | | FEN
\ Input Input Pointer \ \ /
|-------------------------------------------------------|
FELOCK: | Front end storage area lock |
+-------------------------------------------------------+
138
MONITOR TABLES
FE-STORAGE-AREA (Cont.)
0 1 2 3 4 5 6 17 18 35
+-------------------------------------------------------+
FEUDB0 | | | | | | FEFEM | FEFRK |
entry +-------------------------------------------------------+
Bit(s) Pointer Content
0 FEACT Output active bit
1-2 FEDTE DTE owning this device
3 FEBLK Unit is blocked
4 FEEOF Input EOF declared by FE
5 FEVDT FE assignment is valid
6-17 FEFEM FE Allocation
18-35 FEFRK Fork owning device
0 1 11 12 23 24 35
+-------------------------------------------------------+
FEUDB5 | | FEPRO | FEIBC | FEOE1 |
entry +-------------------------------------------------------+
Bit(s) Pointer Content
0 FEHNG Hung bit
1-11 FEPRO Count of input since last ack
12-23 FEIBC Count of bytes in interrupt buffer
24-35 FEOE1 Bytes remaining for output level
139
MONITOR TABLES
FKBSPW
This resident table contains pointers that comprise a linked list of
the current balance set members. The initial pointer to this list is
BSLST. The list is used by AJBALS to determine the status of the
current members of the balance set. Note that an entry may contain a
non-zero value without being a balance set member. Only entries found
by following the BSLST link are considered. If a fork is placed on
the balance set without hold time, it does not appear on this list.
Defined in: STG
Index: Fork number
Format
+------------------------------------------------------------+
FKBSPW: | FKGOLN | FKBLP Balance set list pointer | / \
+------------------------------------------------------------+ |
| . | |
| . | NFKS
\ . \ |
| . | |
| . | \ /
+------------------------------------------------------------+
When the fork is blocked, FKGOLN contains the block priority, which
may be one of the following:
FHV1 = 1
.
.
.
FHV7 = 7
When the fork is runnable, FKGOLN contains the GOLST position.
140
MONITOR TABLES
FKCNO
Fork Core Number Table. The left half of this table is used to hold
the SPT index for the second page of each fork's PSB table. (see
FKPGS table for SPT index for first page of each fork's PSB).
Defined in: STG, PROLOG
Index: Fork number
Format
+-------------------------------------------------------+
| FKCNO: | FKPS2 | FKJPT | / \
| | SPTn for 2nd pg of PSB | Page table for extended | |
| | | JSB (currently unused) | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
141
MONITOR TABLES
FKINT
Fork Interrupt Table. This table contains the pseudo-interrupt
communication register for each fork. The left half of each entry
contains bits recording the type of request. The symbols for these
requests have right half bit assignments (that is, bits 20-35) but are
tested against the left half of the table.
Defined in: STG
Index: Fork number
Format
0 18 19 26 27 35
+-------------------------------------------------------+
FKINT: | Bits | Unused | TRMCOD |* / \
|-------------------------------------------------------| |
| . | |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
Symbol Bits Pointer Content
FKPSI0 0 Interrupt Request(s) pending
FKPSI1 1 Fork not interruptable
NEWFK% 2 Initiate new fork
NEWJB% 3 Initiate new job
PSIIF% 4 Channel interrupt requested in FKINTB
PSIT1% 5 Terminal code Interrupt, Phase 1
PSIT2% 6 Terminal code Interrupt, Phase 2
SUSFK% 7 Suspend fork request
PSIWT% 8 Job was in wait state
PSILO% 9 Logout job request
FRZB1% 10 Direct freeze has been done
FRZB2% 11 Indirect freeze has been done
FRZBB%==FRZB1%+FRZB2% Both bits for external references
JTFRZ% 12 JSYS trap freeze
ABFRZ% 13 Address break freeze
FRZBA%==ABFRZ%+JTFRZ%+FRZBB% All types of freezes
PSICO% 14 Carrier off action request
142
MONITOR TABLES
FKINT (Cont.)
PSITL% 15 Time limit exceeded interrupt
PSIJT% 16 JSYS trap request
ADRBK% 17 Address break request
PSIPRI 18 Priority word set
PSIDP% 19 DAP% JSYS Attention
PSISC% 20 SCS% JSYS work queue entries
for this fork
UNUSED 21-26 Unused
27-35 TRMCOD Field for terminal
143
MONITOR TABLES
FKINTB
Fork Interrupt Table. This table contains the pseudo-interrupt
channel requests pending for each fork since the fork's last PSI
interrupt.
Defined in: STG
Index: Fork number
Format
+-------------------------------------------------------+
FKINTB: | Interrupt Channel Request(s) Pending | / \
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
144
MONITOR TABLES
FKJOB
Fork Job Table. This table holds each fork's job number and JSB
address (SPT index).
Defined in: STG
Index: Fork number
Format
+-------------------------------------------------------+
| FKJBN | FKJSB | / \
FKJOB: | Job Number | JSB (SPT Index) | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
145
MONITOR TABLES
FKJTQ
Fork JSYS Trap Queue. This doubly linked list is a JSYS Traps Queue
of forks waiting to program software interrupt (PSI) the monitor.
JTLST points to the top fork on the linked JSYS traps queue in FKJTQ.
When a fork tries JTLOCK (in the JSB) and some other fork has the
lock, the fork is added to FKJTQ and blocked. When the lock is
cleared, the queue is scanned for the first fork (if any) waiting on
the lock. That fork is removed from the queue and allowed to run.
Defined in: STG
Format
+-------------------------------------------------------+
| FKJTP | FKJTN |
FKJTQ: | Ptr. to Previous Entry | Ptr. to Next Entry | / \
|-------------------------------------------------------| |
| | |
| | |
| |
| | NFKS
| |
| | |
\ \ \ /
+-------------------------------------------------------+
146
MONITOR TABLES
FKNBW
This resident table saves the time of start of a balance set wait of a
fork.
Defined in: STG
Index: Fork number
Format
+-------------------------------------------------------+
FKNBW: | Time of start of BALSET wait | / \
+-------------------------------------------------------+ |
| . | |
| . | NFKS
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
147
MONITOR TABLES
FKNR
Fork Number of Reserve Pages Table. This table contains in the right
half the current reserve working set size for each fork. Also, it
contains the age stamp value at the last time local garbage collection
(removal of less frequently used pages) took place for the fork.
Defined in: STG
Index: Fork number
Format
0 8 9 17 18 35
+-------------------------------------------------------+
| FKXAGE | FKAGE * | FKWSS | / \
FKNR: |Age -Last XGC| Current Age | Reserve Working Set Size | |
|-------------------------------------------------------| |
| . | |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
* FKAGE was used prior to Release 4. It is currently set to 100
(octal) and not changed.
148
MONITOR TABLES
FKPGS
Fork Page and Process Storage Table. This table contains the page
table and PSB locations (SPT indexes) for each fork.
Defined in: STG
Index: Fork number
Format
+-------------------------------------------------------+
| FKUPT | FKPSB | / \
FKPGS: | Page Table (SPT Index) | PSB (SPT Index) * | |
| | for 1st page of PSB | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
* See FKCNO table description for SPT index for second page of PSB.
149
MONITOR TABLES
FKPGST
Fork BALSET Wait Satisfied Test Table. This table holds test routine
information for forks in a balance set wait state. The test routine
checks if wait satisfied has occurred.
For forks on a wait list (and therefore not in the balance set), this
table contains the time of day the fork entered the list.
Defined in: STG
Index: Fork number
Format
+-------------------------------------------------------+ / \
| FKPTD | FKPTR | |
| | Test Routine for | |
FKPGST: | Test Data | BALSET Wait Satisfied | |
|-------------------------------------------------------| |
| or | |
|-------------------------------------------------------| |
| Time of Day Entered a Wait List | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
150
MONITOR TABLES
FKPT
Fork List Pointer Table. This table gives the chain of forks for each
list of forks in the system. That is, it holds the linked list of
forks on TTILST, CLKLST, GOLST. A fork is either on one of the
wait-lists or the go-list. The right half contains the list pointer
to the next fork on the same list. The left half contains the runtime
at which the process associated with the particular fork runs out of
balance set hold time.
Defined in: STG
Index: Fork number
Format
+-------------------------------------------------------+
| FKBET | | / \
FKPT: | Time balance set hold | List Pointer | |
| elapses | | |
|-------------------------------------------------------| |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
Unused slots in this table are linked in a free list. Location FREFK
contains a pointer to the first slot in the free list.
151
MONITOR TABLES
FKQ1
Fork Run Queue Table 1. This table contains each fork's remaining run
quantum. When this quantum expires, the process is requeued to a
lower run position and given the the quantum associated with that run
queue.
Defined in: STG
Index: Fork number
Format
+-------------------------------------------------------+
FKQ1: | FKQTM | / \
| Fork's Remaining Run Quantum | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
152
MONITOR TABLES
FKQ2
Fork Run Queue Table 2. This table contains the queue level number
and fork location (that is, the list address such as TTILST or GOLST)
for each fork.
Defined in: STG
Index: Fork number
Format
0 1 2 5 6 11 12 17 18 35
+-------------------------------------------------------+ / \
FKQ2: | | | | | | | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
Bits Pointer Content
0 FKNTC Network topology change
interrupt enabled
1 PIBMP PI boost flag
2-5 FKFLG Fork flags
6-11 FKMNQ Max Q for fork
12-17 FKQN Queue level number
18-35 FKWTL Wait list address for blocked fork
153
MONITOR TABLES
FKSTA2
This table, indexed by fork number, contains the test data for a given
fork. It is similar to FKSTAT except that this table can contain a
full 36-bit test data word.
Defined in: STG
Index: Fork number
+-------------------------------------------------------+
| FKST2 |
| Test Data | / \
|-------------------------------------------------------| |
| | |
| | |
| | |
| | |
| |
| | NFKS
| |
| | |
| | |
| | |
| | |
| | |
\ \ |
+-------------------------------------------------------+ \ /
154
MONITOR TABLES
FKSTAT
Fork Status Table. This table has useful information when a fork
blocks and leaves the GOLST (that is, LH (FKPT) contains the list
address, WTLST).
The blocked fork's entry in this table contains the address of the
test routine which, when called, determines if wait satisfied has
occurred for the fork.
Defined in: STG
Index: Fork number
Format
+-------------------------------------------------------+ / \
| FKSTR | FKSTO | |
FKSTAT: | Test Data | Test Routine Address | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
155
MONITOR TABLES
FKSWP
This resident table contains fork information that is used primarily
by the working set manager in its decisions.
Defined in: STG, PROLOG
Index: Fork number
Format
+-------------------------------------------------------+
FKSWP: | flags | FKHST |* / \
+-------------------------------------------------------+ |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
0 1 2 3 4 5 6 7 8 17 18 35
+-------------------------------------------------------+
| | | | | | | | | FKGOLN | FKHST |
+-------------------------------------------------------+
Bits Pointer Content
0 FKWSL Working set loaded
1 FKBLK Fork blocked off if on GOLST
2 FKIBS Fork in balance set
3 BSWTB Fork in balance set wait
4 BSNSK NOSKED--on if fork is NOSKED
and not running
5 BSCRSK CRSKED--on if fork is CRSKED
and not running
6 FKIBH In balance set hold--on if fork
entered balance set since last
update to history
7 FKBSHF In balance set hold in AJBALS
algorithm
8 BSSPQ Special queue (system fork)
9 BSOVRD Override high priority
10 BSNST Last block was long
11 SCWAK% SCJSYS is waking
12 SCBLK% SCJSYS is blocked
13 FKSPL Inferior fork has been spliced
14 FKKIL Fork is being killed
15 FKOGL Fork is on GOLST
16-17 Unused
18-35 FKHST Fork history
156
MONITOR TABLES
FKTIME
Fork Time Table. This table gives the time of day (TODCLK) at which
each fork was put on its current run queue.
Defined in: STG
Index: Fork number
Format
+-------------------------------------------------------+
FKTIME: | Time When Fork Put on Run Queue | / \
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
157
MONITOR TABLES
FKWSP
Fork Working Set (In-Memory Size) Table. This table contains in the
right half the number of physical pages currently assigned to each
fork. The left half is used to hold the preload size as determined by
LDJOB when a fork enters the balance set.
Defined in: STG
Index: Fork number
Format
+-------------------------------------------------------+
| FKNWCE | FKCSIZ | / \
FKWSP: | # of pages to be loaded | Current Size | |
| (either # of pages of the | | |
| working set currently not | | |
| loaded or # of overhead | | |
| pages if not preloading | | |
| (NFKSPP=4) | | |
|-------------------------------------------------------| |
| . |
| . | NFKS
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
158
MONITOR TABLES
FL
FL is the format of the NI Flush Command Queue command.
Defined in: PHYKNI
Format
+------------------------------------------------------------------------+
FLCHK | Check word |
|------------------------------------------------------------------------|
FLPID | Portal ID |
+------------------------------------------------------------------------+
159
MONITOR TABLES
FREESPACE BLOCK HEADER/TRAILER
At a minimum, a header of length 3 is required (no trailer is ever
required). The header is infinitely expandable, as is any trailer.
While in the pool, blocks are manipulated by pointers that address the
first word past the header (thus the negative offsets for the header
definitions). Before a block is assigned to the user, the pointer is
SOS'd and the user area of the block overlays the header by one word.
(Specifically, the user area of the block begins with header word
FSPNXT.)
Unless the monitor has been assembled with the debug conditional, the
block header is three words long and no trailer is used.
Defined in: FREE
Format
+-------------------------------------------------------------+
FSPAPC= -7 | PC of block assigner |
|-------------------------------------------------------------|
FSPAJF= -6 | Job #,,fork # of block assigner |
|-------------------------------------------------------------|
FSPDPC= -5 | PC of block deassigner |
|-------------------------------------------------------------|
FSPDJF= -4 | Job #,,fork # of block deassigner |
|-------------------------------------------------------------|
FSPFLG= -3 | Flags,,unique code |
|-------------------------------------------------------------|
FSPSIZ= -2 | Size of block (including header/trailer) |
|-------------------------------------------------------------|
FSPNXT= -1 | Pointer to next block |
+-------------------------------------------------------------+
160
MONITOR TABLES
FREESPACE DESCRIPTOR
The free space descriptor is a block that contains information about
the individual free space pools and pointers to them. The address of
each descriptor is contained in the FSPTAB table.
Defined in: FREE
Format
+-------------------------------------------------------------+
FSPPFL=0 | Flags |
|-------------------------------------------------------------|
FSPLOK=1 | Pool lock |
|-------------------------------------------------------------|
FSPORG=2 | Origin address of freespace pool |
|-------------------------------------------------------------|
FSPEND=3 | Ending address of freespace pool |
|-------------------------------------------------------------|
FSPCNT=4 | Count of space remaining in pool |
|-------------------------------------------------------------|
FSPSML=5 | Smallest balance of free space achieved |
|-------------------------------------------------------------|
FSPBAP=6 | Pointer to block-accounting area |
|-------------------------------------------------------------|
FSPMTB=7 | Minimum total block size |
|-------------------------------------------------------------|
FSPFFB=10 | Pointer to first free block |
|-------------------------------------------------------------|
FSPRFB=11 | Randomized pointer to first free block |
|-------------------------------------------------------------|
FSPHDS=12 | Block header size |
|-------------------------------------------------------------|
FSPTRS=13 | Block trailer size |
|-------------------------------------------------------------|
FSPHTS=14 | Combined header and trailer size |
|-------------------------------------------------------------|
FSPBCS=15 | Smaller of header or trailer size |
|-------------------------------------------------------------|
FSPHBP=16 | History buffer address |
|-------------------------------------------------------------|
FSPHBX=17 | Max History transactions | Index to current hist rec |
+-------------------------------------------------------------+
FSPDSS = descriptor size in words
161
MONITOR TABLES
FREESPACE-DESCRIPTOR INDEX TABLE
This is the table that points to the swappable and JSB freespace
structures.
Defined in: FREE
Format
FSPTAB: +-------------------------------------------------------------+
| Pointer to freespace descriptor |
|-------------------------------------------------------------|
| Pointer to freespace descriptor |
|-------------------------------------------------------------|
| . |
| . |
| . |
|-------------------------------------------------------------|
| Pointer to freespace descriptor |
+-------------------------------------------------------------+
FSPTBL = Freespace-descriptor index-table size in words
162
MONITOR TABLES
FREESPACE HISTORY RECORD
The free space history record is a ring buffer that is used to record
free space transactions. There is one ring buffer for each free space
pool. Word FSPHBO in the free space descriptor contains the base
address of this buffer. The right half of word FSPHBX in the free
space descriptor contains the index to the current history record.
Defined in: FREE
Format
+-------------------------------------------------------------+
FSPHST=0 | Transaction Type (-1 = assign; 0 = deassign) |
|-------------------------------------------------------------|
FSPHPC=1 | PC of Caller |
|-------------------------------------------------------------|
FSPHJF=2 | Job,, Fork of Caller |
|-------------------------------------------------------------|
FSPHBA=3 | Block Address |
|-------------------------------------------------------------|
FSPHBS=4 | Block Size |
+-------------------------------------------------------------+
FSPHRC (200 decimal) is the number of history records in the history
buffer.
163
MONITOR TABLES
GB
The format of the LAT Service Block is shown below. There is one
service block for each service provided by the host. A host must
provide at least one service if it is to function as a LAT host. If
no services have been defined by the LCP interface at the time LAT
operations are started, a default service is defined with the same
name as the host node name.
Defined in: LATSRV
Format
SERVICE BLOCK
+------------------------------------------------------------------------+
GBRAT | Service Rating |
|------------------------------------------------------------------------|
| GBNC | GBLC |
| Count of bytes in service name | Count of bytes in service |
| | description |
|------------------------------------------------------------------------| /\
GBNAM | Storage for up to 16 bytes of service name | <<ML.SNM+4>/5>
\ \ \/
|------------------------------------------------------------------------| /\
GBHID | Storage for up to 64 bytes of service id | <<ML.SID+4>/5>
\ \ \/
+------------------------------------------------------------------------+
164
MONITOR TABLES
GTOKPR
This table is used by the access control code. It contains one entry
for each legal GETOK/GIVOK function.
Defined in: STG
Format
+-------------------------------------------------------+
GTOKPR: | DGOUSR -- User requests | / \
|-------------------------------------------------------| |
| DGOASD -- Assign device | |
|-------------------------------------------------------| |
| DGOCAP -- Enable/disable capabilities | |
|-------------------------------------------------------| |
| DGOCJB -- Create job | |
|-------------------------------------------------------| |
| DGOLOG -- Login | |
|-------------------------------------------------------| |
| DGOCFK -- Create fork | |
|-------------------------------------------------------| |
| DGOTBR -- Set terminal baud rate | |
|-------------------------------------------------------| |
| DGOLGO -- Logout | |
|-------------------------------------------------------|
| DGOENQ -- ENQ quota setting | MXGOKF
|-------------------------------------------------------|
| DGOCRD -- Create/modify directory | |
|-------------------------------------------------------| |
| DGOSMT -- Structure mount | |
|-------------------------------------------------------| |
| DGOMDD -- Enter MDDT | |
|-------------------------------------------------------| |
| DGOCLS -- Set class for job | |
|-------------------------------------------------------| |
| DGOCL0 -- Set class at login | |
|-------------------------------------------------------| |
| DGOMTA -- MT access | |
|-------------------------------------------------------| |
| DGOACC -- ACESS JSYS | |
|-------------------------------------------------------| |
| DGOOAD -- Assign device via OPENF | |
|-------------------------------------------------------| |
| DGODNA -- DECnet access | |
|-------------------------------------------------------| |
| DGOANA -- ARPAnet access | |
165
MONITOR TABLES
GTOKPR (Cont.)
|-------------------------------------------------------| |
| DGOATJ -- Attach job | |
| |-------------------------------------------------------| |
| | DGOINF -- INFO% monitor call | |
| |-------------------------------------------------------| |
| | DGOLAT -- LATOP% monitor call | |
| |-------------------------------------------------------| |
| | DGOCTM -- Incoming CTERM connections | |
| |-------------------------------------------------------| |
| | DGOTTM -- Allow TTMSG% | |
| |-------------------------------------------------------| |
| | DGOSMN -- Allow SMON% | |
| |-------------------------------------------------------| |
| | DGOMSY -- Allow HSYS% | |
| |-------------------------------------------------------| |
| | DGOSGT -- Allow SYSGT% | |
| |-------------------------------------------------------| |
| | DGOGTB -- Allow GETAB% | |
| |-------------------------------------------------------| |
| | DGOOPN -- OPENF% of secure file | |
| |-------------------------------------------------------| |
| | DGORNF -- RNAMF% of secure file | |
| |-------------------------------------------------------| |
| | DGODLF -- DELF%/DELNF% of secure file | |
| |-------------------------------------------------------| |
| | DGOTLK -- Allow TLINK% | |
| |-------------------------------------------------------| |
| | DGOCRL -- Allow CRLNM% (only some functions) | |
| |-------------------------------------------------------| |
| | DGODTC -- Allow DTACH% | |
| |-------------------------------------------------------|
| | DGOCFD -- Allow CHFDB% to set file secure | \ /
+-------------------------------------------------------+
166
MONITOR TABLES
HC
Data structure HC is the LAT circuit counters portion of the Host Node
(HN) data structure.
Defined in: LATSRV
Format
+------------------------------------------------------------------------+
HCRCV | Messages received |
|------------------------------------------------------------------------|
HCXMT | Messages transmitted |
|------------------------------------------------------------------------|
HCRTR | Messages retransmitted |
|------------------------------------------------------------------------|
HCSEQ | Receive message sequence errors |
|------------------------------------------------------------------------|
HCIMR | Illegal messages received |
|------------------------------------------------------------------------|
HCISR | Illegal slots received |
|------------------------------------------------------------------------|
HCRES | Resource errors |
|------------------------------------------------------------------------|
HCMSK | Illegal message error mask |
+------------------------------------------------------------------------+
167
MONITOR TABLES
HN
The HN (Host Node) data structure is used by LAT service to store
status and configuration information describing the local host.
TOPS-20 stores the address of this block in location LAHNDB.
Defined in: LATSRV
Format
HOST NODE Data Base
+------------------------------------------------------------------------+
| | | | | | | | | | | | | |
| HNFLG | | HNCFL | *
|------------------------------------------------------------------------|
| HNMXC | HNNCC |
|Maximum allocatable circuit blocks | Number of currently allocated |
| | circuit blocks |
|------------------------------------------------------------------------|
| HNMAC | HNNAC |
| Maximum number of active circuits |Number of currently active circuits |
|------------------------------------------------------------------------|
| HNMCO | HNCON |
| Maximum number of simultaneous | Current number of active connects |
| connects | |
|------------------------------------------------------------------------|
| HNNUM | HNLAS |
| Host number | LAT access state |
|------------------------------------------------------------------------|
| HNRLI | HNTIM |
|Virtual circuit message retransmit | Virtual circuit timer initial |
| limit | value (ms) |
|------------------------------------------------------------------------|
| HNMTI | HNRAT |
|Multicast timer initial value (sec)| Host node dynamic rating |
|------------------------------------------------------------------------|
| HNPRG | HNNRB |
| Host progress timer |Number of receive buffers allocated |
| |------------------------------------------------------------------------|
| | HNCMT | HNCMX |
| | Command message retry timer | Command message retry limit |
|------------------------------------------------------------------------|
HNHST| Address of state table |
|------------------------------------------------------------------------| /\
HNQAC| Queue header for active circuit blocks | 2
\ \ \/
|------------------------------------------------------------------------| /\
HNQIC| Queue header for inactive circuit blocks | 2
\ \ \/
168
MONITOR TABLES
HN (Cont.)
|------------------------------------------------------------------------| /\
HNNIQ| Interrupt level message queue | 2
\ \ \/
|------------------------------------------------------------------------| /\
HNSCQ| Scheduler level message queue | 2
\ \ \/
|------------------------------------------------------------------------|
HNPID| NI Portal ID |
|------------------------------------------------------------------------|
| HNNXI | HNNSV |
|Next circuit block index to assign | Number of offered services |
|------------------------------------------------------------------------|
HNLOK| Lock for HN data base |
|------------------------------------------------------------------------|
| HNNMC | HNIDC |
| Host node name count | Host identification string count |
|------------------------------------------------------------------------| /\
HNNAM| Host node name string | 2
\ \ \/
|------------------------------------------------------------------------| /\
HNID | Host identification string | <<ML.DSC+4>/5>
\ \ \/
|------------------------------------------------------------------------| /\
HNSMT| Start message template | <<<ML.HSM+3>/4>
| | +SBF.OF>
\ \ \/
|------------------------------------------------------------------------| /\
HNMCM| Copy of the multicast message | <<ML.HMC+3>/4>
\ \ \/
|------------------------------------------------------------------------| /\
HNSRV| Storage for service blocks | <GB.LEN*MXHSRV>
\ \ \/
+------------------------------------------------------------------------+
For field HNFLG(0-17):
HNRUN 0 NI run state
HNANY 1 Reconstruct of START message necessary
HNCIP 2 Virtual circuit connect in progress
For field HNCFL(28-35):
HNOTH 28 Something other than above changed
HNFIL 29
HNCLS 30 A host service class changed
HNSVD 31 A host service description changed
HNSVR 32 A host service rating changed
HNSVN 33 A host service name changed
HNNDD 34 Host Node Description changed
HNACS 35 Access Codes changed
169
MONITOR TABLES
HOM
Home Block. Block on each disk unit which contains vital statistics
that cannot be built in when a monitor is generated. These are
primarily parameters of the unit and the STR to which it belongs.
Defined in: DSKALC
Format
+-------------------------------------------------------+
HOMNAM=0 | SIXBIT/HOM/ |
|-------------------------------------------------------|
HOMID=1 | SIXBIT/Unit ID/ |
|-------------------------------------------------------|
| Physical Disk Address | Physical Disk Address |
HOMPHY=2 | of This Home Block | of Other Home Block |
|-------------------------------------------------------|
HOMSNM=3 | SIXBIT/Structure Name/ |
|-------------------------------------------------------|
HOMLUN=4 | # of Packs in STR | Logical Pack # Within STR |
|-------------------------------------------------------|
| Block # of | Block # of |
HOMHOM=5 | This Home Block | Other Home Block |
|-------------------------------------------------------|
HOMP4S=6 | # of Pages for Swapping on This Structure |
|-------------------------------------------------------|
HOMFST=7 | First Swapping Track on Unit |
|-------------------------------------------------------|
HOMRXB=10 | Address of Index Block of ROOT-DIRECTORY |
|-------------------------------------------------------|
| Address of Index Block of |
HOMBXB=11 | BACKUP-COPY-OF-ROOT-DIRECTORY |
|-------------------------------------------------------|
HOMFLG=12 | Flags |
|-------------------------------------------------------|
HOMSIZ=13 | Number of Sectors in This Unit |
|-------------------------------------------------------|
HOMBTB=14 | Number of Tracks in Structure |
|-------------------------------------------------------|
HOMMID=15 | Pack Unique Code |
|-------------------------------------------------------|
| |
\ Reserved for Expansion \
| |
| |
|-------------------------------------------------------|
HOMFE0=61 | Front End File System (sector #) |
|-------------------------------------------------------|
HOMFE1=62 | Front End File System (# of sectors) |
170
MONITOR TABLES
HOM (Cont.)
|-------------------------------------------------------|
| |
| |
\ Reserved for the Front End \
| |
| |
|-------------------------------------------------------|
HOMFE2=101| BOOTSTRAP.BIN Word One (Sector #) |
|-------------------------------------------------------|
HOMFE3=102| BOOTSTRAP.BIN Word Two (# of Sectors) |
|-------------------------------------------------------|
| |
\ Reserved for Expansion \
| |
| |
| |-------------------------------------------------------|
| HOMLS1=160| CPU Serial Number | CPU Serial Number |
| |-------------------------------------------------------|
| HOMLS2=161| CPU Serial Number | CPU Serial Number |
| |-------------------------------------------------------|
| HOMLS3=162| CPU Serial Number | CPU Serial Number |
| |-------------------------------------------------------|
| HOMLS4=163| CPU Serial Number | CPU Serial Number |
| |-------------------------------------------------------|
HOMSER=164| APR Serial # of CPU booked from this structure |
|-------------------------------------------------------|
HOMUID=165\ 12 Character Unit I.D. (PDP-11 Format) (3 words) \
|-------------------------------------------------------|
HOMOID=170\ 12 Character Owner I.D. (PDP-11 Format) (3 words) \
|-------------------------------------------------------|
HOMFSN=173\ 12 Character File System Name (PDP-11 Format)(3 words)\
|-------------------------------------------------------|
HOMCOD=176| 0 | CODHOM (707070) |
|-------------------------------------------------------|
HOMSLF=177| 0 | This Block # |
+-------------------------------------------------------+
171
MONITOR TABLES
HOM (Cont.)
PDB Format
+-------------------------------------------------------+
| High Serial Number |
|-------------------------------------------------------|
| Low Serial Number |
|-------------------------------------------------------|
| Non CI Processor Serial Number |
|-------------------------------------------------------|
0 | CI Processor Serial # | CI State |
|-------------------------------------------------------|
| | |
| | |
| | |
| | |
17 | | |
+-------------------------------------------------------+
172
MONITOR TABLES
HOME
Home Table. This table contains the disk pages for the HOME and BAT
blocks and the 11 Bootstrap program.
Defined in: STG
Format
+-------------------------------------------------------+ / \
HOME: | 0 (11 Bootstrap) | |
|-------------------------------------------------------| |
| 1 (Home Block ) | |
|-------------------------------------------------------| |
| 2 ( BAT Block ) | |
|-------------------------------------------------------| |
| 3 (PDB Block) | |
|-------------------------------------------------------| |
| 4 . | |
|-------------------------------------------------------| |
| 5 . |
|-------------------------------------------------------| NHOME
| 6 . |
|-------------------------------------------------------| |
| 7 . | |
|-------------------------------------------------------| |
| 10 . | |
|-------------------------------------------------------| |
| 11 . | |
|-------------------------------------------------------| |
| 12 (Secondary Home Block) | |
|-------------------------------------------------------| |
| 13 (Secondary Bat Block) | |
+-------------------------------------------------------+ \ /
173
MONITOR TABLES
HOMTAB
This table contains the logical to physical mapping (channel and unit)
per logical unit, and its length equals the maximum number of packs in
a structure.
Defined in: STG
Format
+--------------------------------------------------------+
HOMTAB: | Physical Channel | Physical Unit | / \
|--------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | HOMTBL
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ |
+--------------------------------------------------------+ \ /
174
MONITOR TABLES
IA
This structure is used by DECnet. The Connect Initiate and Connect
Confirm calls' argument format for T2. T1 holds the NSPpid for the
new logical link.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
| IAFLO | IASIZ |
| Flow control type | Max bytes allowed in a message |
| | segment |
+------------------------------------------------------------------------+
175
MONITOR TABLES
IB
The initialization block is the argument to all DECnet-36
initialization routines. It is set with NODE% jsys functions, and
read by the various DECnet layers during and after initialization.
Defined in: D36PAR
Format
Initialization Block
+------------------------------------------------------------------------+
* | | | IBRTR | | |
| | | | | |
|------------------------------------------------------------------------|
IBNAM | Executor node name (in sixbit) |
|------------------------------------------------------------------------|
IBADR | Executor node address (16-bit address) |
|------------------------------------------------------------------------|
IBMXA | Maximum address |
|------------------------------------------------------------------------|
IBMXB | Maximum buffers |
|------------------------------------------------------------------------|
IBDGL | Default goal |
|------------------------------------------------------------------------|
IBDBL | Default # of buffers per link |
|------------------------------------------------------------------------|
IBBIP | Buffer input percentage |
|------------------------------------------------------------------------|
IBBSZ | Buffer size |
+------------------------------------------------------------------------+
Field IBPH2 (0-0) Set if Phase II desired
Field IBRTR (2-5) Routing type
.RNT.L1 Level-1 router
.RNT.NR End node
Field IBFCM (6-7) Default flow control
176
MONITOR TABLES
IDXFIL
The Index Table File of the structure currently mapped for a process.
Each structure has an index table file. The file is indexed by 2*
directory number as each entry is two words long. For each directory
on the structure, an entry contains the address of the FDB for the
directory and the disk address of the index block for the directory.
The table, IDXFIL, in the PSB, is mapped from the index block of the
file, STRNAM:<ROOT-DIRECTORY>INDEX-TABLE.BIN. The file pointed to by
the IDXFIL map has the format shown below.
When a structure is mounted (physically) the system gets an OFN for
this file and stores it in entry, STRIDX, in the SDB table for that
structure. The table entries are created at this time (mount-time).
Defined in: PROLOG
Format
+-------------------------------------------------------+
| | / \
|-------------------------------------------------------| |
| . | |
| . | |
\ . \
|-------------------------------------------------------| Dir. #
|IDXSD |IDXFDB | *2
| Superior directory | Address of FDB for |
| | this directory | |
|-------------------------------------------------------| |
| IDXFG | IDXIB | |
| flags | Disk address of index block of directory | |
|-------------------------------------------------------| |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
177
MONITOR TABLES
IDXFIL (Cont.)
0 4 5 6 35
Word 2 +-------------------------------------------------------+
of pair | | | IDXIB |
+-------------------------------------------------------+
Symbol Bits Pointer Meaning
IDX%IV 5 If set, indicates that this
IDX entry is invalid.
(IDX%IV is set equal to 1,
but is positioned at bit 5)
6-35 IDXIB Disk address of index block
of directory.
178
MONITOR TABLES
IM
This is the DECnet LLMOP identify-self message block.
Defined in: LLMOP
Format
+------------------------------------------------------------------------+
IMIDD | Special ID word |
|------------------------------------------------------------------------| /\
IMMSD | MSD for System ID message | MD.LEN
\ \ \/
|------------------------------------------------------------------------| /\
IMDAT | Buffer for message | <<SID.SZ+3>/4>
\ \ \/
+------------------------------------------------------------------------+
179
MONITOR TABLES
INDEX
The Index Block (1 page) exists for each disk file and contains
pointers to where each of the file's pages resides on disk. If more
than one index block is needed for non-directory files, a super index
block (1 page) is created which points to the home disk address of
each index block. (Note that the maximum file size is 512*512 pages.)
When the file is referenced, an in-core copy of the index block is
maintained which keeps track of the file's active pages in the system.
(That is, whether the pages are in-core, on the swapping area, or on
disk.)
Format
+-------------------------------------------------------+
|0 8| |
| C | Storage address |
| H | |
|-------------------------------------------------------|
|0 E 8| |
| C | Storage address |
| K | |
|-------------------------------------------------------|
|0 8| |
| S | Storage address |
| U | |
|-------------------------------------------------------|
|0 M 8| |
| | Storage address |
| | |
|-------------------------------------------------------|
| | |
| | Storage address |
| | |
|-------------------------------------------------------|
| . |
| . |
| . |
\ . \
+-------------------------------------------------------+
180
MONITOR TABLES
INIDEV
Initialization Device Routines. This table contains calls to
initialize devices after loading the swappable monitor.
Defined in: STG
Format
+-------------------------------------------------------+
INIDEV: | CALL MTAINI |
|-------------------------------------------------------|
| CALL LPTINI (2020 only) |
|-------------------------------------------------------|
| CALL CDPINI (KL only) |
|-------------------------------------------------------|
| RET |
+-------------------------------------------------------+
181
MONITOR TABLES
INIDV1
Front End Initialization Device Routines.
Defined in: STG
Format
+-------------------------------------------------------+
INIDV1: | CALL FEINI (KL only) |
|-------------------------------------------------------|
| CALL CDRINI |
|-------------------------------------------------------|
| CALL LPTINI (KL only) |
|-------------------------------------------------------|
| RET |
+-------------------------------------------------------+
182
MONITOR TABLES
INIDVT
Device Initialization Table. This static table generated at assembly
time, contains a four word block for each type of device on the
system. It is used at system startup time to generate unit number of
entries per device type in the device tables, DEVCHR, DEVCH1, DEVNAM,
and DEVUNT. Thus, each unit of each device type has an entry in the
device tables.
Defined in: STG, MONSYM
Format
+-------------------------------------------------------+ / \
INIDVT: | SIXBIT/Name/ | |
|-------------------------------------------------------| |
| Device Type Index Number | Dispatch Adr. |
|-------------------------------------------------------| 4
| Char1| <TYPE>B17 | Modes |*
|-------------------------------------------------------| |
| CHAR2 + CHAR3 + Number of Units | |
|-------------------------------------------------------| \ /
| . |
| . |
| . |
| . |
| . |
| . |
\ . \
+-------------------------------------------------------+
CHAR1 can be a combination of the following:
Symbol Bit Meaning
DV%OUT 0 Can do output
DV%IN 1 Can do input
DV%DIR 2 Has a directory
DV%AS 3 Is assignable
DV%MDD 4 Is a multiple directory device
DV%AV * 5 Is available to this job
DV%ASN * 6 Is assigned by ASND
DV%MDV 7 Is a mountable device
DV%MNT * 8 Is mounted
183
MONITOR TABLES
INIDVT (Cont.)
TYPE is one of the following:
Symbol Value Meaning
.DVDSK 0 Disk
.DVMTA 2 Magtape
.DVPTP 5 Spooled PTP
.DVLPT 7 Spooled & physical line printer
.DVCDR 10 Spooled & physical card reader
.DVFE 11 Front End Device
.DVTTY 12 Terminal
.DVPTY 13 Pseudo TTY
.DVNUL 15 Null Device
.DVNET 16 ARPA network
.DVPLT 17 Spooled Plotter
.DVCDP 21 Spooled Card Punch
.DVTCP 25 TCP Device
MODES can be a combination of the following:
Symbol Bit Meaning
DV%M0 35 Can be opened in mode 0
DV%M1 34 " 1
DV%M2 33 " 2
DV%M3 32 " 3
DV%M4 31 " 4
DV%M5 30 " 5
DV%M6 29 " 6
DV%M7 28 " 7
DV%M10 27 " 10
DV%M11 26 " 11
DV%M12 25 " 12
DV%M13 24 " 13
DV%M14 23 " 14
DV%M15 22 " 15
DV%M16 21 " 16
DV%M17 20 " 17
184
MONITOR TABLES
INIDVT (Cont.)
CHAR2 can be a combination of the following:
Symbol Bit Meaning
D1%SPL 0 Is spooled
D1%ALC * 1 Is under control of allocator
D1%VVL * 2 Volume valid
D1%NIU * 3 Device slot not in use
D1%INI * 4 Device is being initialized
(currently for structures only)
D1%MTU 5 Device can do MTOPR without
JFN opened
* These bits are zero at assembly time and are set
by the monitor when appropriate in their corres-
ponding device tables. (DEVCHR or DEVCH1)
CHAR3 is either zero or DV%PSD (bit 18) which indicates pseudo-device.
185
MONITOR TABLES
IORB
I/O Request Block. Whenever a request for massbus I/O (that is, DSK
or MTA) occurs, an IORB is built for that request. It is of the long
form described below for magtape requests and special disk I/O.
However, the most common IORB format for disk I/O is a one word IORB,
consisting of just the status word, IRBSTS, and stored in the CST5
table.
Defined in: PHYPAR
Format
+-------------------------------------------------------|
| |IRLNK |*
IRBSTS=0| Status | Next IORB |0=IRBLNK
|-------------------------------------------------------|
IRBMOD=1| Mode, Priority, Density, Parity |*
|-------------------------------------------------------|
IRBCNT=2| Count of Hardware Bytes Transfered |
|-------------------------------------------------------|
| IRBTL |IRBHD |
IRBXFL=3| Transfer List Tail | Transfer List Head |
|-------------------------------------------------------|
IRBIVA=4| Address of Termination Routine |
|-------------------------------------------------------|
IRBADR=5| Physical Device Address (if needed) |
|-------------------------------------------------------|
IRBLEN=6| Device Dependent Data |*
| \
+-------------------------------------------------------+
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 17 18 35
+-------------------------------------------------------+
IRBSTS | | | | | | | | | | | | | | | | |
+-------------------------------------------------------+
Symbol Bits Pointer Content
IS.SHT 0 Short form (PAGEM)) request
IS.DON 1 Done with this job
IS.ERR 2 ISERR Error on this operation
IS.NRT 3 No more retries
IS.WGU 4 Wrong unit interrupted
IS.TPM 5 ISTPM Hit tape mark
IS.EOT 6 On write only, hit physical EOT
IS.WLK 7 Write locked
IS.IER 8 Inhibit error recovery
IS.DTE 9 Data error
IS.DVE 10 Hardware error on device
IS.BOT 11 Hit BOT
186
MONITOR TABLES
IORB (Cont.)
IS.RTL 12 Record too long (buffer too small)
IS.IEL 13 Inhibit error logging
14-17 ISFCN Function code
18-35 IRLNK When referring to link
Function Codes for ISFCN
Symbol Code Function
IRFRED 1 Read data
IRFRDF 2 Read data and format (count, key,
header)
IRFWRT 3 Write data
IRFWTF 4 Write format
IRFSEK 5 Seek
IRFFSB 6 Forward space block
IRFBSB 7 Backspace block
IRFWTM 10 Write tape mark
IRFERG 11 Erase gap
IRFREW 12 Rewind
IRFRUN 13 Rewind and unload
IRFRDR 14 Read reverse
IRFRCR 15 Recovery read
IRFWVC 16 Write with validity check
IRFRVC 17 Read with validity check
0 14 15 17 18 26 27 30 1 32 35
+-------------------------------------------------------+
IRBMOD | | | | | | |
+-------------------------------------------------------+
Bits Pointer Content
15-17 IRBDM Data Mode
27-30 IRBPRI Priority
31 IRBPAR Parity
32-35 IRBDN Density
Data Modes for IRBDM
Symbol Code Meaning
IRMWRD 1 Word mode
IRM6BT 2 Six bit
IRM7BT 3 Seven bit
IRM8BT 4 Eight bit
IRMHID 5 High density mode
187
MONITOR TABLES
IORB (Cont.)
If device is DSK, IRBLEN becomes:
+-------------------------------------------------------+
IRBLEN | Transfer List |
|-------------------------------------------------------|
| 0 |
+-------------------------------------------------------+
If device is MTA, IRBLEN=MTIRSD becomes:
0 8 9 17 18 35
+-------------------------------------------------------+
| IRFLG *| IRBUN |IRBPB |
MTIRSD | Flags | Unit No. |Ptr to Buffer of Page Ptrs |
|-------------------------------------------------------|
| | IRBOC |
| | Original Count |
| | (Copy of IRBCNT) |
|-------------------------------------------------------|
MTIRBL | Transfer List |
|_______________________________________________________|
| . |
\ . \
| . |
| . |
+-------------------------------------------------------+
Value of flags in IRFLG:
Bits Pointer Content
0 IRBFR Buffer ready for use
1 IRBFQ Current buffer flag
2 IRBFA Active flag, IORB being filled
or emptied by service routine
3 IRBAB IORB aborted due to an error
4 IRBFF IORB free
188
MONITOR TABLES
IPCF-MESSAGE-HEADER
IPCF Message header. This table describes the format of the message
header for message sent by the Inter-Process Communications Facility.
Defined in: IPCF
Format
0 17 18 35
+-------------------------------------------------------+
| MESLNK |
0 | Link to Next Message |
|-------------------------------------------------------|
| Reserved | MESLEN |
1 | | Length of This Block |
|-------------------------------------------------------|
2 | MESSJN | MESFLG |
| Sender's Job Number | Flags |
|-------------------------------------------------------|
3 | MESSPD |
| Sender's PID |
|-------------------------------------------------------|
4 | MESLDN |
| Logged in Directory # of Sender |
|-------------------------------------------------------|
5 | MESENB |
| Enabled Capabilities of Sender |
|-------------------------------------------------------|
6 | MESCDN |
| Connected Directory # of Sender |
|-------------------------------------------------------|
MESACT=7 | MESACT |
| Account String Block |
\ (length of MESALN = 10) \
|-------------------------------------------------------|
17| MESSLO: |
| Logical Location String |
| Block of MESLLN (2) |
|-------------------------------------------------------|
MESWDI=21| MESWDO |
\ Message \
| (PTN.PN in Page Mode) |
|-------------------------------------------------------|
MESWDI+1 | MSFTM |
| Mask into Fork Page Bit Table |
| (PAGE Mode only) |
|-------------------------------------------------------|
MESWDI+2 | MESPAC | MSFTI |
| Access Bits | Index into |
| of Page | Fork Bit Table |
+-------------------------------------------------------+
189
MONITOR TABLES
IPCF-PID-HEADER
IPCF Process ID Header. This contains overhead information for each
PID in use.
Defined in: IPCF
0 8 9 11 12 17 18 35
+-------------------------------------------------------+
| PIDUN | |
| Unique | Length of this block |
| (LH of PID) | |
|-------------------------------------------------------|
| PIDFLG* | PIDCHN | PIDFW |
| Flags | Chn | Fork Number of |
| | | Waiting Fork |
|-------------------------------------------------------|
| PIDRQ | PIDRC | PIDFO |
| Receive | Receive | Fork Number of |
| Quota | Count | Owner of this PID |
|-------------------------------------------------------|
| PIDKMP |
| PID to receive a message if this PID gets deleted |
|-------------------------------------------------------|
| PIDNL |
| Link to Newest Message |
|-------------------------------------------------------|
| PIDOL |
| Link to Oldest Message |
+-------------------------------------------------------+
0 18 35
+-------------------------------------------------------+
| |||| | PIDCHN | PIDFW |
| |||| | CHN | Fork Number of |
| |||| | | Waiting Fork |
+-------------------------------------------------------+
Symbol Value Content
PD%JWP 10 PID is a Job-wide PID
PD%DIS 4 PID is disabled
PD%CHN 2 Channel is set up to get
interrupts
PD%NOA 1 No access by other forks
190
MONITOR TABLES
IPCF-STORAGE-AREA
Inter-Process Communication Facility Storage Area. This non-resident
storage is described followed by the resident wake-up bit table
(PDFKTB). THe PID headers and messages are contained in the
Swap-free-space pool which immediately follows this table in
non-resident storage. See also the tables, PIDCNT and PIDTBL.
Defined in: STG
Format
+-------------------------------------------------------+ / \
SPIDTB: | | |
| Table of Commonly Used PIDS | SPDTBL=8
\ \ |
|-------------------------------------------------------| \ /
PIDLOK: | Lock on PID Free Pool and Data Structure |
|-------------------------------------------------------|
NXTPID: | Next Unique # to be used as LH of PID |
|-------------------------------------------------------|
INFOPD: | PID of SYSTEM INFO |
|-------------------------------------------------------|
INFOPV: | Public Value of SYSTEM INFO PID |
|-------------------------------------------------------|
PIDLST: | Number of First Free PID, 0 if none |
|-------------------------------------------------------|
PIDMXP: | Highest Page in Pages-In-Transit File |
|-------------------------------------------------------| / \
PIDPBT: | | |
| Bit Table of Pages-In-Transit File | PIDPBL
\ \ |
|-------------------------------------------------------| \ /
PIDFTB: | | / \
| TBL of PTN's of forks for pages in transit | |
| | PIDFTL
\ \ |
+-------------------------------------------------------+ \ /
+-------------------------------------------------------+
PDFKTB | | | | | . . |
|-------------------------------------------------------|
\ Bit Wakeup Table (1/Fork) \
+-------------------------------------------------------+
191
MONITOR TABLES
JOB AREA
This area contains the job specific information. It is the entire
JSVAR psect. The JOBMAP in the JSB points to all of the job area
storage. For this area, the monitor has indirect pointers in its page
table (MMAP) for its pages beginning at JSBPGA: (which is on a page
boundary) for the length of the job area. All of these pointers are
to a single location in the SPT (specifically SPT+NOFN). With this
arrangement, the job area for the current process can be changed to
the job area for another process by only changing the one location in
the SPT.
JBCOR contains a bit table which keeps track of which pages in the Job
Storage Area are in use (bit(s) = 0) and which are free (bit(s) = 1).
The first several pages of this Job Common Area is always allocated
for the JSB page plus expansion pages for the JFN blocks and for the
JSYS trap header word and trap blocks (See FKJTQ table). The first
non-reserved page begins at FREJPA (=626000). Pages are assigned from
the bit table, JBCOR, by the routine, ASGPAG, and are used for
temporary job pages such as file window pages, magtape buffer pages,
mapping a super index block, getting more space for the free block
storage linked in JSBFRE, and mapping EXE file directory pages.
Defined in: STG
Format
+-------------------------------------------------------+
JSBPGA: | | / \
| JSB area | 1
| (see JSB) | page
\ \ \ /
|-------------------------------------------------------| / \
JFNPGA: | | 3
| Pages continuing JFNs from the JSB | pages
\ \ \ /
JSJFNA: |-------------------------------------------------------|
JTBPG: | | / \
| JSYS trap blocks | 2
| First work used by NEWJTB | pages
\ \ \ /
|-------------------------------------------------------|
FREJPA: | | / \
| Job free storage | NJSBPG
| | (^D50)
| | pages
\ \ \ /
+-------------------------------------------------------+
192
MONITOR TABLES
JOBDIR
Job Directory Table. This table contains the number of the login
directory for each job.
Defined in: STG
Format
+-------------------------------------------------------+ / \
JOBDIR: | Reserved | Login Directory # | |
|-------------------------------------------------------| |
| . | |
| . |
| . | NJOBS
| . |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
193
MONITOR TABLES
JOBNAM
Job Name Table. This table contains an index into the subsystem name
tables (SNAMES, STIMES) indicating what subsystem, if any, each job is
running. The name index is for statistics only and is not used by the
monitor.
Defined in: STG
Index: Job number
Format
0 1 2
+-------------------------------------------------------+ / \
JOBNAM: | | | | | Name Index |* |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NJOBS
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
Symbol Bit Pointer Content
JWAKEF 0 HIBFL Flag used by HIBER JSYS.
If set, implies a wakeup
signal to THIBR
1 DIAFL Job has DIAG resources
1-2 SKPCT Skip count for NEWUTL
18-35 Name index
194
MONITOR TABLES
JOBPNM
Job Program Name. This non-resident table contains each job's program
name.
Defined in: STG
Index: Job number
Format
+-------------------------------------------------------+ / \
JOBPNM: | Job Program Name | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NJOBS
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
195
MONITOR TABLES
JOBPT
Job Process Table. This table contains the number of the controlling
terminal, or -1 for a detached job, and the index of the top fork of
the job.
Defined in: STG
Format
+-------------------------------------------------------+ / \
JOBPT: | Controlling Terminal | Top Fork Index | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NJOBS
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
Unused slots in this table are linked in a free list. Location FREJOB
contains a pointer to the first slot in the free list.
196
MONITOR TABLES
JOBRT
Job Runtime Table. This table contains the total runtime of each job
(sum of all forks) in milliseconds. If a word contains a -1, the job
does not exist.
Defined in: STG
Index: Job number
Format
+-------------------------------------------------------+ / \
JOBRT: | Runtime | |
|-------------------------------------------------------| |
| . | |
| . |
| . | NJOBS
| . |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
197
MONITOR TABLES
JOBRTL
Job Runtime Limit. This table contains the number of clocks (by way
of TIMER JSYS) in use by each job and a pointer to the runtime limit
TIMER block. A description of the TIMER block is described below.
(See RES-FREE-SPACE).
Defined in: STG, PROLOG
Index: Job number
Format
0 12 13
+-------------------------------------------------------+
| TIMCNT | JOBRTP | / \
JOBRTL: | # of Clks. in | Ptr to Runtime Limit Block | |
| Use | | |
|-------------------------------------------------------| |
| . | |
| . | |
| . |
| . | NJOBS
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
TIMER Run Timer Limit Block
+-------------------------------------------------------+
| TIMLNK |
| Link to next block |
|-------------------------------------------------------|
| TIMTIM |
| Time word (when clock should go off) |
|-------------------------------------------------------|
|0 5|6 17|18 35|
|TIMCHN | TIMJOB | TIMFRK |
| Channel|Job that set clock|Sys fork handle to be PSI'd|
|-------------------------------------------------------|
| TIMKNL |
| Back link to previous clock |
+-------------------------------------------------------+
198
MONITOR TABLES
JSB
Job Storage Block. Each job has a Job Storage Block which holds
per-job information such as the job's fork structure, line number of
controlling TTY, terminal interrupts enabled and accounting and
logical name information.
JSBFRE is the free block header. If a block of words (that is, <512
words) is required, it is allocated from the JSFREE area in the JSB.
Blocks in the JSFREE area are linked and when a block of words is
required, the free list is searched looking for a large enough block.
If the free list area in JSFREE is depleted, a new page (space outside
the JSB in the Job Storage Area) is allocated and its space added to
the free list for block usage. Blocks of words are assigned from the
free list, headed by JSBFRE by the routine, ASGFRE, and are used to
hold temporary storage such as name strings for JFN blocks, the
job-wide Logical Names List, and the Logical Name Definition Blocks.
JBCOR contains a bit table which keeps track of which pages in the job
area are in use. For further information see JOB AREA.
Defined in: STG
Format
+-------------------------------------------------------+
JSBPGA: | |
JOBMAP: | Object Map for Job-Common Area |
\ \
|-------------------------------------------------------|*/ \
SYSFK: | Job Fork Index to System Fork Index Table | |
| (1 Entry /Job Fork) | NUFKS
\ \ |
|-------------------------------------------------------| \ /
CTTAB: | Not Used | Controlling TTY | / \
| | #, or -1 | |
| | NUFKS
|-------------------------------------------------------| \ /
FKJTB: | Adr of JSYS Trap Block | / \
| (1 Entry /Job Fork) | |
| . | NUFKS
\ . \ |
|-------------------------------------------------------| \ /
FKPTRS: | Fork Pointers (Structure) Table | / \
| (1 Entry /Job Fork) | NUFKS
\ \ |
|-------------------------------------------------------| \ /
FKPSIE: | Terminal Interrupt Enabled Word Table | / \
| (1 Entry /Job Fork) | NUFKS
\ \ |
|-------------------------------------------------------| \ /
199
MONITOR TABLES
JSB (Cont.)
FKDPSI: | Deferred Terminal Interrupts Mask Table | / \
| (1 Entry /Job Fork) | NUFKS
\ \ |
|-------------------------------------------------------| \ /
FREJFK: | Free Job Fork Slot List |
|-------------------------------------------------------|
FKLOCK: | Lock for Fork Structure Modification |
|-------------------------------------------------------|
FLKCNT: | Nest Count for Fork Lock |
|-------------------------------------------------------|
FLKOWN: | Fork That Locked Fork Lock |
|-------------------------------------------------------|
FKTIMW: | TIMER word for lock timeout |
|-------------------------------------------------------|
FKCNT: | Count of Active Forks in This Job |
|-------------------------------------------------------|
| LSTLGN: | Last Interactive LOGIN Date and Time |
| |-------------------------------------------------------|
| NLDLGN: | Last Non-interactive LOGIN Date and Time |
|-------------------------------------------------------|
SRTTIM: | Data & Time Job Was Initialized |
|-------------------------------------------------------|
ARDFRT: | Job Default for Retrievals |
|-------------------------------------------------------|
CTRLTT: | Line Number of Controlling TTY |
|-------------------------------------------------------|
| GBLJNO: | Global Job Number |
| |-------------------------------------------------------|
TTSPSI: | Code Enabled Anywhere in This Job |
|-------------------------------------------------------|
TTSDPS: | Terminal Interrupt Code Deferred |
|-------------------------------------------------------|
TTJTIW: | Terminal Interrupt Enable Mask |
|-------------------------------------------------------|
| JBFLTM: | Time of Last Password Failure |
| |-------------------------------------------------------|
| JBFLCT: | Count of Password Failures in Interval |
| |-------------------------------------------------------|
CONSTO: | Console Time On (TODCLK units) |
|-------------------------------------------------------|
CTIMON: | Connect Time On (GTAD units) |
|-------------------------------------------------------|
CONCON: | Console Connect Time (for usage) |
|-------------------------------------------------------|
JBRUNT: | Job Run Time (for usage) |
|-------------------------------------------------------|
JBNODE: | Node Name (SIXBIT) |
|-------------------------------------------------------|
JBBNAM: | Batch Job Name (SIXBIT) |
200
MONITOR TABLES
JSB (Cont.)
|-------------------------------------------------------|
JBBSEQ: | Batch Sequence Number |
|-------------------------------------------------------|
ACCTSL: | Length of ACCTSR |
|-------------------------------------------------------| / \
ACCTSR: \ Account String \ MAXLW
|-------------------------------------------------------| \ /
ACCTSX: | Expiration Data of ACCTSR |
|-------------------------------------------------------| / \
CSHACT: \ Most recently Validated Account \ MAXLW
|-------------------------------------------------------| \ /
CSHUSR: | User for Whom Cached Account was Validated |
|-------------------------------------------------------|
CSHACX: | CSHACT Expiration Date |
|-------------------------------------------------------|
CSHCLS: | Class of Cached Account | / \
|-------------------------------------------------------| WPN
LLSR: | Logical Location | \ /
|-------------------------------------------------------| / \
JSSRM: \ Session Remark \ MAXLW+1
|-------------------------------------------------------| \ /
| | / \
USRNAM: \ User Name String \ MAXLW+1
|-------------------------------------------------------| \ /
JFNLCK: | Lock to Prevent Tampering with JFNs |
|-------------------------------------------------------|
| MAXJFN: | Maximum Number of JFNs for Job |
|-------------------------------------------------------|
ENQLST: | Forward Pointer to Q-Block |
|-------------------------------------------------------|
| Backward Pointer to Q-Block |
|-------------------------------------------------------|
ENQQOT: | ENQ Quotas & Counts | Reserved |
|-------------------------------------------------------|
TIMALC: | TIMER Clocks Limit |
|-------------------------------------------------------|
LNTABP: | Pointer to Logical Name Table (Tbl is in JSB Space) |
|-------------------------------------------------------|
LNMLCK: | Lock for Logical Name Data Base |
|-------------------------------------------------------|
NPRIVP: | Number of private pages in job |
|-------------------------------------------------------|
JOBUNT: | Connected Disk Unit |
|-------------------------------------------------------|
JBCLCK: | Lock for ASGPAG |
|-------------------------------------------------------| / \
JBCOR: | Page Allocation Bit Table for Job Storage Area | 4
\ \ \ /
201
MONITOR TABLES
JSB (Cont.)
|-------------------------------------------------------| --
JSBFRE: | Ptr. to 1st Free Block | 0 | |
|-------------------------------------------------------| |
| Lock | |
|-------------------------------------------------------|
| Space Counter |Job area
|-------------------------------------------------------| free
| Most Common Block Size | storage
|-------------------------------------------------------| header
| Max Top of Free Stor. | Min. Bottom of Free Stor.|
|-------------------------------------------------------| |
| Temp | |
|-------------------------------------------------------| |
| Temp | |
|-------------------------------------------------------| --
JSFREE: | Free Storage Area in Job Block (^D64 words) | / \
| | |
| [Free Blocks have Hdr. Wd of: | |
| Ptr. to Next Blk,, Length] | IJSFRE
\ \ |
|-------------------------------------------------------| \ /
JSSTRT: | | JSSTN |*/ \
JSSTRF=0| Flags | Structure Unique Code | |
|-------------------------------------------------------| |
| JSGRP | |
JSGRPS=1| AOBJN Pointer to List of Groups | |
|-------------------------------------------------------| |
| JSADN | JSSTMX |
JSADIR=2| **Unused** |Accessed DIR # for This STR| *STRN
|-------------------------------------------------------| |
JSFKMT=3| JSFMT | |
| Fork-mount bit word | |
|-------------------------------------------------------| |
| | |
| (4 Words per Structure) | |
\ \ |
|-------------------------------------------------------| \ /
JSSTLK: | Lock on the JSSTRT Block |
|-------------------------------------------------------|
| JSUC | JSDIR |
JSBSDN: | Connected STR Unique Code | Connected Directory # |
|-------------------------------------------------------|
|0 | |18 35|
JSBCDS: | JSCDF | |JSCDS |
|String Ptr. | |Ptr. to Connected |
|Valid if set| |Dir. Name String |
202
MONITOR TABLES
JSB (Cont.)
|-------------------------------------------------------|
MODES: | DDBMOD Word from LOGIN |
|-------------------------------------------------------|
GROUPS: | Groups to Which LOGIN User Belongs |
|-------------------------------------------------------|
RSCNPT: | RESCAN Pointer |
|-------------------------------------------------------|
RSCNBP: | Ptr. to RESCAN Buffer (max. buf. size is 777) |
|-------------------------------------------------------|
JBINFO: | PID of Private <SYSTEM>INFO for JOB |
|-------------------------------------------------------|
JSCDR: | Next Version # (or -1) | Adr. of Spool Set String |
| | for CDR |
|-------------------------------------------------------|
JSMTA1: | MTA Parity, Density, Mode, and Default Record Size |*
|-------------------------------------------------------|
JBFLAG: | Spooler Flags | |*
| (Sent on CLOSE/LOGOUT | General Job-wide Flags |
|-------------------------------------------------------|
JSLOPD: | PID to get LOGOUT message from CRJOB |
|-------------------------------------------------------|
JSLOJB: | Job # of Who Logged Out this Job |
|-------------------------------------------------------|
JSFSTK: | Stack of Things to be Done on Fork Cleanup |
|-------------------------------------------------------|
JSFLCK: | Lock for This JSFSTK Structure |
|-------------------------------------------------------|
CRJFLG: |Flag that this is CRJOB Startup.(Used by MEXEC & LOGIN)|
|-------------------------------------------------------|
| DCMAX | DCCUR |
DCNCNT: | Job's Network Link Quota| Current Count of Open Links|
|-------------------------------------------------------|
JSSRTM: | Runtime at Start of this Accounting Session |
|-------------------------------------------------------|
JSSCTM: | Console Time at Start of this Session |
|-------------------------------------------------------|
| JSSCTI: | Universal Date and Time at Start of Session |
| |-------------------------------------------------------|
JSATCT: | ATS HTN Quota,,Count |
|-------------------------------------------------------|
JOBSKD: | Special Job Scheduling Parameter |
|-------------------------------------------------------|
BATSTF: | Batch Stream Number and Flags Word |
| |-------------------------------------------------------|
| BATRID: | Batch Request ID |
+-------------------------------------------------------+
203
MONITOR TABLES
JSB (Cont.)
JFN0: +-------------------------------------------------------+ --
FILBYT: | Byte Pointer to Current Window | |
|New I/O = FILBFI - byte pointer to current input buffer| |
|-------------------------------------------------------| |
FILBFO: | Byte Pointer to Current Buffer | |
| New I/O = byte pointer to current output buffer | |
|-------------------------------------------------------| |
FILBYN: | Byte # of Current Byte | |
| New I/O = FILBNI - input byte number of current byte | |
|-------------------------------------------------------| |
FILBNO: | New I/O - Output Byte Number of Current Byte | |
|-------------------------------------------------------| |
FILACT: | Ptr to Account String or Account # | |
|-------------------------------------------------------| |
FILLEN: | Total File Length in Bytes | |
|-------------------------------------------------------| |
FILCNT: | Bytes Remaining in Current Buffer | |
| New I/O = FILBCI = Bytes remaining in | |
| Current Input Buffer | |
|-------------------------------------------------------| |
FILBCO: | Bytes Remaining | |
|-------------------------------------------------------| |
FILLCK: | File Lock Word | |
|-------------------------------------------------------| |
| | FLPGN | FLWPG | |
| FILWND: | Current Page # |Location of Current Window | |
| |-------------------------------------------------------| |
| FILSTS: | File Status Bits | Status | Mode |* |
| |-------------------------------------------------------| |
| FILST1: | Status |* |
| |-------------------------------------------------------| |
| | STR | FLDTB | |
| FILDEV: | Structure Number |DEV`DTB (i.e.Dev Disp. Tbl)| |
| |-------------------------------------------------------| |
| | FLFCO | FLSCS | |
| FILNLP: | Flow Control Option | Segment Size | |
| |-------------------------------------------------------| |
| | FLPTN | FLPTT | |
| FILOFN: | OFN for This File | OFN of Long File PT Table |
| |-------------------------------------------------------| JFN
| | FLMPC | FLTTW |
| FILLFW: | Count of Pages Mapped | Loc. of Page Table Table | BLOCK
| |-------------------------------------------------------|
| | FLDSB | FLDNO |
| FILDDN: |Ptr. to Device String Block| Directory # | |
| |-------------------------------------------------------| |
| | FLDIR | FLATL | |
| FILDNM: | Directory Name String | Ptr to Attribute List | |
| |-------------------------------------------------------| |
| | FLNSB | FLESB | |
| FILNEN: |File Name String Blk. Ptr. | Ext. String Blk. Ptr. | |
204
MONITOR TABLES
JSB (Cont.)
| |-------------------------------------------------------| |
| | ORG | FLVNO | |
| FILVER: | Fork # of JFN Originator | Version # | |
| |-------------------------------------------------------| |
| | FLDMS | FLNMS | |
| FILMS1: | Directory Wild Mask | Name Wild Mask | |
| |-------------------------------------------------------| |
| | FLEMS | | |
| FILMS2: | Extension Wild Mask | | |
| |-------------------------------------------------------| |
| FILFDB: | Address of FDB in the Directory | |
| |-------------------------------------------------------| |
| | FLUC | FLP0 | |
| FILCOD: | STR Unique Code | PTO OFN for Long File | |
| |-------------------------------------------------------| |
| | FLLNK | FLLND | |
FILNND: | DECnet Port # | Ptr to node name string | |
|-------------------------------------------------------| --
| Additional JFN Blocks |
\ . \
+-------------------------------------------------------+
Each JFN uses a block of 19 (MLJFN) words. (Since JFNs can grow
beyond the end of the JSB into successive pages, the JFN blocks must
be the last storage defined in the JSB.) MJFN is the maximum number of
JFNs.
These definitions are used in the above positions only during the
GTJFN procedure:
(1) FILTMP / Ptr. to temp string block for default ,, Ptr. to
temp string block
(2) FILPRT / Ptr. to protection string or protection number
(3) FILSKT / Arpanet connection no.,, Unused
FILOPT / Byte Ptr. to Store String in GTJFN
(4) FILLIB / For DECNET, Ptr to LL Block
(5) FILLNM / Ptr. to RDTEXT buffer ,, Ptr. to logical name
chain **
(6) FILBFO / For DECNET, Output Buffer Ptr.
(7) FILIDX / 0 ,, Index into device tables for original
devices GTJFNed
{(doesn't change during spooling)}
FILBFI / For DECNET, Ptr. to Input Buffer
(8) FILBCT / For DECNET, Ptr. to Counts
205
MONITOR TABLES
JSB (Cont.)
Logical Name Header Format
+-------------------------------------------------------+
| LNMCNT || LNMSTP |
| Depth Count || Step Counter |
|-------------------------------------------------------|
| LNMLNK | LNMPNT |
| Link to Next BLK | Logical Name String Ptr |
+-------------------------------------------------------+
Bits Pointer Content
0-17 LNMCNT Depth count for logical
names
18 LMMIDX Index into logical name
tables
19-35 LNMSTP Step counter at time of
chaining
0-17 LNMLNK Link to next chain block
18-35 LNMPNT Pointer to logical name
string
+-------------------------------------------------------+
FILSTS | flags | mode |
+-------------------------------------------------------+
Symbol Bits Pointer Contents
OPNF 0 File is open
READF 1 File is OK to read
WRTF 2 File is OK to write
XCTF 3 File is OK to execute
RNDF 4 File is OK to reset ptr.
(that is, not append)
NONXF 5 Non-existent File, delete
FDB on RLJFN
NWTF 6 No wait on DUMP I/O
LONGF 7 File is a long file
EOFF 8 End of file if read
attempted
ERRF 9 Bytes read may be wrong
NAMEF 10 Name is associated with
this JFN
ASTF 11 An * was typed in
ASGF/BLKF 12 JFN is being assigned or
service routine wants to
block; shares a bit
position with ASGF
HLTF 13 Halt if I/O error
WNDF 14 Window page has been set up
206
MONITOR TABLES
JSB (Cont.)
ENDF/TRNSL 15 File is past end of maximum
length.
Bit timeshared with ENDF to
say the JFN is in a trans-
itional state and may not
be accessed.
SIZE 16 Illegal to change size of byte
FRKF 17 File is restricted to fork
in LH(FILVER)
PASLSN 18 Set to skip line number
checking on ASCII files
SKIPBY 19 Set by BYTINA to remember
that it has to discard.
XQTAF 20 Quota exceeded Flag
FILDUD 21 Suppress DDMP action if set
FILINP 22 Direction of I/O is input
FILOUP 23 Direction of I/O is output
HLDF 24 Hold in balance set
RECF 25 End of record seen
ACRLFF 26 Add CRLF's after records on
input
CRNXT 27 Return CR next
LFNXT 28 Return LF next
FROSTF 29 Record has been frosted
18-35 IOMODE Mode File is opened in
| |-------------------------------------------------------|
| FILST1 | |
| +-------------------------------------------------------+
|
|
| Symbol Bits Pointer Contents
|
| FILNO 0 New output
| ASGF2 1 Shadow bit for ASGF
207
MONITOR TABLES
JSB (Cont.)
0 1 2 3 4 5 8 9 17 18 35
+-------------------------------------------------------+
SYSFK: | | | | | | | | |
+-------------------------------------------------------+
Bits Pointer Content
0 JRFN not in use
1 SFEXO Fork is Execute-Only if set
2 SFNVG Fork is not "virgin" if set
3 SFGXO Fork can PMAP into execute-only
forks
4 SFSRT Fork has been started
9-17 FKHCNT Count of handles on a given fork
18-35 System fork number
Work 0 of 4-word structure block (starts at JSSTRT)
0 1 2 3 17 18 35
+-------------------------------------------------------+
| | | | | JSSTN |
+-------------------------------------------------------+
Symbol Bits Pointer Content
0 JSSDM Structure is dismounted
1 JSMCI Mount count has been incremented
by structure
2 JSXCL Structure is mounted exclusively
by the structure
JSFRST 18-35 JSSTN Structure unique code
0 9 10 11 14 15 17 18 35
+-------------------------------------------------------+
JSMTA1 | | | JSMTD |JSMTM | JSMTR |
+-------------------------------------------------------+
Bits Pointer Content
10 JSMTP Default Parity
11-14 JSMTD Default Density
15-17 JSMTM Default Mode for transfers
18-35 JSMTR Default record size (hardware
bytes)
208
MONITOR TABLES
JSB (Cont.)
0 1 2 3 4 17 18 19 20 35
+-------------------------------------------------------+
JBFLAG | | | | | | | | | |
+-------------------------------------------------------+
Symbol Bits Pointer Content
SP%BAT 0 JSBAT Job is being controlled
by BATCH
SP%DFS 1 JSDFS Spooling is deferred
SP%ELO 2 JSELO Job executed LOGOUT JSYS
SP%FLO 3 JSFLO Job forced to LOGOUT by
top Fork error
SP%OLO 4 JSOLO Job logged out by other
job
18 JBMX Job has been in the
mini-exec
19 JBT20 Job is at TOPS-20 command
level
209
MONITOR TABLES
KB
KB contains the DECnet Counter Block Sub-fields.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
| | KBWID | KBTYP |
| | Counter width in bits | Counter Type (Number) |
|------------------------------------------------------------------------|
KBVAL | Counter Value |
|------------------------------------------------------------------------|
KBMSK | Bit Mask |
+------------------------------------------------------------------------+
Field KBBMF (0-0) Bit Map Flag
210
MONITOR TABLES
KDB
Kontroller Data Block (TM02/3, DX20, and CI nodes)
Defined in: PHYPAR, PHYM2, PHYP2, SCAPAR
Format
+-------------------------------------------------------+
KDBSTS=0 | Flags | Unit Type | *
|-------------------------------------------------------|
KDBIUN=1 | Initial AOBJN Word to UDB Table |
|-------------------------------------------------------|
KDBCUN=2 | Current AOBJN Word to UDB Table |
|-------------------------------------------------------|
KDBDSP=3 | Dispatch for Service Routine |
|-------------------------------------------------------|
KDBDDP=4 | | *
=KDBUDB | UDB Pointer Table |
\ \
|-------------------------------------------------------|
| |
| Device Dependent Code |
\ \
+-------------------------------------------------------+
0 1 2 3 4 17 18 35
+-------------------------------------------------------+
KDBSTS | | | | | | |
+-------------------------------------------------------+
Symbol Bits Pointer Content
KS.ACT 1 Controller Active if set
KS.HLT 2 Microcode is halted
KS.DSK 3 Controller for disks
18-35 Unit type (see unit
types in UDBSTS in UDB)
211
MONITOR TABLES
KDB (Cont.)
Device dependent sector for TM02/3
+-------------------------------------------------------+ / \
KDBUDB= | | |
KDBDDP | UDB Pointer Table | 8
\ \ \ /
|-------------------------------------------------------|
TM2ADR: | Massbus Address of TM02/3 |
|-------------------------------------------------------|
SAVUDB: | Current UDB (0 if none) |
| 2020 Only |
|-------------------------------------------------------|
TM.CNI: | CONI of RH goes here |
|-------------------------------------------------------|
TM.CS1: | DATAI RH control Register |
|-------------------------------------------------------|
TM.DBF: | DATAI RH Data Register |
|-------------------------------------------------------| / \
TM2REG: | Drive Registers go here | |
| | |
| | 12
| | |
| | |
\ \ \ /
+-------------------------------------------------------+
LK.TM2 = Length of TM02 KDB
Device Dependent Sector for TM78
+-------------------------------------------------------+
KDBUDB= | UDB Pointer Table |
KDBDDP | |
|-------------------------------------------------------|
TM8ADR | MASSBUS Address of TM78 |
|-------------------------------------------------------|
SAVUDB | Current UDB (0 if none) |
|-------------------------------------------------------|
SAVLSI | Last Interrupt Code |
|-------------------------------------------------------|
TM8XCW | CCW for Reading Extended Sense Info |
|-------------------------------------------------------|
TM8SCW | Saved CCW While Reading Extended Sense |
|-------------------------------------------------------|
TM8ACT | Count of Asynchronous Interrupts |
|-------------------------------------------------------|
TM8CNI | CONI of RH Goes Here |
|-------------------------------------------------------|
TM8CS1 | DATA1 RH Control Register |
212
MONITOR TABLES
KDB (Cont.)
|-------------------------------------------------------|
TM8DBF | DATA1 RH Data Register |
|-------------------------------------------------------|
TM8REG | Drive Registers Start Here: |
| |
DR.CR=0 | Drive Control Register |
|-------------------------------------------------------|
DR.ICD=1 | Interrupt code (Data XFER) Register |
|-------------------------------------------------------|
DR.FMT=2 | Record Count/Format Register |
|-------------------------------------------------------|
DR.ER=3 | Error Register |
|-------------------------------------------------------|
DR.AS=4 | Attention Summary Register |
|-------------------------------------------------------|
DR.BC=5 | Byte Count Register |
|-------------------------------------------------------|
DR.DT=6 | Drive Type Register |
|-------------------------------------------------------|
DR.SR=7 | Status Register |
|-------------------------------------------------------|
DR.SN=10 | Serial Number Register |
|-------------------------------------------------------|
DR.DG=11 | Diagnostic Register |
|-------------------------------------------------------|
DR.DG2=12 | Diagnostic Register |
|-------------------------------------------------------|
DR.ICN=13 | Interrupt Code (Non Data-XFER) Register |
|-------------------------------------------------------|
DR.ND0=14 | Non Data-XFER Command, Unit 0 Register |
|-------------------------------------------------------|
DR.ND1=15 | Command, Unit 1 Register |
|-------------------------------------------------------|
DR.ND2=16 | Command, Unit 2 Register |
|-------------------------------------------------------|
DR.ND3=17 | Command, Unit 3 Register |
|-------------------------------------------------------|
DR.IA=20 | Internal Address Register |
|-------------------------------------------------------|
DR.TMS=21 | TM Status Register |
|-------------------------------------------------------| / \
TM8REV | ROM Rev Levels | 2
\-------------------------------------------------------\ \ /
TM8XSN | Extended Sense Information | / \
\ \ 17
+-------------------------------------------------------+ \ /
213
MONITOR TABLES
KDB (Cont.)
Device dependent sector for DX20
+------------------------------------------------------+ / \
K.DUDB= | | |
KDBDDP | UDB Pointer Table | NUMDRV
\ \ |
|------------------------------------------------------| \ /
K.DXAD: | Massbus Address of DX20 |
|------------------------------------------------------|
K.STCT: | Number of Time Microcode Restarted |
|------------------------------------------------------|
K.STCL: | Clock Timer for Restarts on Overdues |
|------------------------------------------------------|
K.DNUM: | Number of Drives in Existence |
|------------------------------------------------------|
D.SAVQ: | Storage for Q1 on ATTN Interrupts |
|------------------------------------------------------|
K.DVER: | Microcode Version |
|------------------------------------------------------|
K.DREG: | | / \
| Drive Registers go here | |
| | REGNUM
\ \ |
|------------------------------------------------------| \ /
K.DEXS: | | / \
| Extended Status Table | |
| | (SNSNUM+3)/4
\ \ |
+------------------------------------------------------+ \ /
K.DCNI: | CONI of RH on Error |
|------------------------------------------------------|
K.DCS1: | DATAI of RH Control Register |
|------------------------------------------------------|
K.DDBF: | DATAI of RH Data Register |
|------------------------------------------------------|
214
MONITOR TABLES
KDB (Cont.)
LK.DX2 = Length of DX20 KDB
Device dependent sector for CI node
|-------------------------------------------------------| /|\
KDBUDB= | UDB Pointer Table | |
KDBDDP \ \ PRTMXU
|-------------------------------------------------------| |
KDBCID: | Controller ID | \|/
|-------------------------------------------------------| / \
| 8 8-bit Bytes | 2
|-------------------------------------------------------| \ /
KDBIAC: | Saved ACs for Initialization of a Node | /|\
| | |
| | 10
| | |
\ \ \|/
|-------------------------------------------------------|
| System Block |
| (See description elsewhere in this manual) |
| |
\ \
|-------------------------------------------------------|
215
MONITOR TABLES
LB
This is the loopback portion of a DECnet Request Block.
Defined in: LLMOP
Format
Message Block for Loopback
+------------------------------------------------------------------------+
LBAAD | Assistant Address |
|------------------------------------------------------------------------|
LBALV | Assistance Level |
+------------------------------------------------------------------------+
216
MONITOR TABLES
LD
This is the DECnet loopback data area; the data buffer is supplied by
the user.
Defined in: LLMOP
Format
Loopback Data Output MSD
+------------------------------------------------------------------------+ /\
LDMSD | | MD.LEN
\ \ \/
+------------------------------------------------------------------------+
217
MONITOR TABLES
LH
This is the DECnet Loopback LLMOP Header MSD.
Defined in: LLMOP
Format
MSD for header
+------------------------------------------------------------------------+
LHIDD | ID word to hack for Transmit Complete |
|------------------------------------------------------------------------| /\
LHMSD | | MD.LEN
\ \ \/
|------------------------------------------------------------------------| /\
LHDAT | Room for Largest Loopback header (Full Assist) | <<LHH.LN+3>/4>
\ \ \/
+------------------------------------------------------------------------+
218
MONITOR TABLES
LI
The following is the definition of the Line-ID (LI) that the DECnet
router maps into a line block address. This is used:
o On an initial open from the DLL to ROUTER;
o By router to determine any Kontroller specific peculiarities;
o By network management to communicate with ROUTER.
Defined in: D36PAR
Format
Line-ID
+------------------------------------------------------------------------+
| | | LIDEV | LIKON | LIUNI | LIDRP |
| | |Device type| Controller | Unit number | Drop number |
| | | |number (CPU# for | | (port for CI's) | *
| | | | DTE's and CI's) | | |
+------------------------------------------------------------------------+
Field LILXC (0-0) Bit indicating line ID (1) or circuit ID (0).
219
MONITOR TABLES
LK
LK represents the format of DECnet storage location NSPLKF, which is a
bit map of pending NSPLCF requests.
Defined in: LLINKS
Format
BITS IN NSPLKF
+------------------------------------------------------------------------+
| | | | | |
| LKFLG | | *
+------------------------------------------------------------------------+
For field LKFLG(0-5):
LKJIF 0 Jiffy service, must be sign bit for NSPJIF
LKCGT 1 Congestion-detected service
LKRLV 2 Congestion-relieved service
220
MONITOR TABLES
LN
LN is the definition of the DECnet-36 Loopback Node block. A block is
created every time a loopback node is defined for a circuit. The
blocks are chained together, and the first block on the chain is
pointed to by monitor location SCTLNL.
Defined in: SCLINK
Format
+------------------------------------------------------------------------+
LNNXT | Ptr to next loopback node block |
|------------------------------------------------------------------------|
LNNAM | Loopback node name |
|------------------------------------------------------------------------|
LNCIR | Loopback circuit |
+------------------------------------------------------------------------+
221
MONITOR TABLES
LOGICAL-NAME-DEFINITION
Logical Name Definition Block. The block format given below is used
for system and job-wide logical name definitions. The first
definition block for a logical name is pointed to by its Logical Name
List and is stored in the swappable free space if a system logical
name or in the JSB space if a job-wide logical name.
Defined in: LOGNAM
Reference by: LOGNAM
Format
+-------------------------------------------------------+
LNBLK=0 | PTR TO NEXT DEFINITION | SIZE OF THIS BLOCK |
| (OR ZERO IF NONE) | (USUALLY 12) |
|-------------------------------------------------------|
LNDEV=1 | ASCII BYTE PTR TO DEVICE BLOCK (IF ANY) |
|-------------------------------------------------------|
LNDIR=2 | ASCII BYTE PTR TO DIRECTORY BLOCK (IF ANY) |
| (-3 MEANS STAR WAS TYPED) |
|-------------------------------------------------------|
LNNAM=3 | ASCII BYTE POINTER TO NAME BLOCK (IF ANY) |
|-------------------------------------------------------|
LNEXT=4 | ASCII BYTE POINTER TO FILE TYPE (IF ANY) |
| (-2 MEANS A NULL FIELD WAS SPECIFIED) |
|-------------------------------------------------------|
LNVER=5 | 500000,,0 + GENERATION NUMBER (IF ANY) |
|-------------------------------------------------------|
LNACT=6 | 500000,,0 + ACCOUNT NUMBER -OR- |
| ASCII BYTE POINTER TO ACCOUNT STRING (IF ANY) |
|-------------------------------------------------------|
LNPRT=7 | 500000,,0 + FILE PROTECTION (IF ANY) |
|-------------------------------------------------------|
LNTMP=10| 0 IF PERMANENT OR -1 IF TEMPORARY (IF ANY) |
|-------------------------------------------------------|
LNATR=11| PREFIX VALUE OF CURRENT | PTR TO ATTRIBUTE CHAIN |
| PREFIX | |
+-------------------------------------------------------+
222
MONITOR TABLES
LOGICAL-NAMES-LIST
Logical Names List. The list described below is the format used for
the system logical names list (pointed to by SYLNTB) and the job wide
logical names list (pointed to by the JSB entry, LNTABP.)
The system logical names list is built in the swappable free space
from the entries in SYNMTB at system initialization time. (See
SWAP-FREE-SPACE and SYNMTB tables). A job's logical names list is
built in the JSB space the first time a logical name is created.
An entry in a logical names list has a pointer to the logical name
string (in ASCIZ) in the left half and a link to the first definition
block in the right half (See LOGICAL-NAME-DEFINITION description).
Defined in: STG
Format
+-------------------------------------------------------+
| # OF DEFINED LOG NAMES | SPACE ALLOCATED IN TABLE |
|-------------------------------------------------------|
| LOGICAL NAME BLK ADDR | LINK TO FIRST DEFINITION |
|-------------------------------------------------------|
| LOGICAL NAME BLK ADDR | LINK TO FIRST DEFINITION |
|-------------------------------------------------------|
| . |
| . |
\ . \
+-------------------------------------------------------+
223
MONITOR TABLES
LPT-STORAGE-AREA
Line Printer Storage Area. Each entry in the resident area is LPTN
words long, where LPTN equals the number of line printers on the
system.
Defined in: STG
Format
+-------------------------------------------------------+ / \
LPTTYP: \ Type of LPT Vector for Dev. Independence \ LPTN
|-------------------------------------------------------| \ /
| |*/ \
LPTSTS: \ Status Word \ LPTN
|-------------------------------------------------------| \ /
| |*/ \
LPTST1: \ Second Status Word \ LPTN
|-------------------------------------------------------| \ /
| |*/ \
LPTST2: \ Third Status Word \ LPTN
|-------------------------------------------------------| \ /
| |*/ \
LPTST3: \ Fourth Status Word \ LPTN
|-------------------------------------------------------| \ /
| |*/ \
LPTERR: \ Last Error Word \ LPTN
|-------------------------------------------------------| \ /
| | / \
LPTCNT: \ Buffer Counter \ LPTN
|-------------------------------------------------------| \ /
| |*/ \
LPTCLS: \ LPTCHK Clock Switch \ LPTN
|-------------------------------------------------------| \ /
| | / \
LPTCCW: \ BLKI/O Pointer \ LPTN
|-------------------------------------------------------| \ /
| | / \
LPTICT: \ Interrupt Byte Count \ LPTN
|-------------------------------------------------------| \ /
| | / \
LPTCKT: \ Interval for LPTTIM \ LPTN
|-------------------------------------------------------| \ /
| | / \
LPTLCK: \ Lock on Opening LPT \ LPTN
|-------------------------------------------------------| \ /
| |*/ \
PGDATA: \ Page Counter to be Sent to -11 \ LPTN
+-------------------------------------------------------+ \ /
224
MONITOR TABLES
LPT-STORAGE-AREA (Cont.)
The following LPT: storage items are in the nonresident area of the
monitor.
+-------------------------------------------------------+ / \
LPTBUF: | | LPTN * 2
\ 2 Buffers (each NLPBF=400 words) for each LPT: \ * NLPBF
|-------------------------------------------------------| \ /
| VFUOFN | RAMOFN | / \
LPTOFN: | VFU | RAM | |
\ OFN's to Prevent Opens for Write (1 entry/DTE) \ LPTN
|-------------------------------------------------------| \ /
| | / \
VFUFIL: | Swappable Storage Area for VFU File Names | LPFLSZ*
\ \ LPTN
|-------------------------------------------------------| \ /
| | / \
RAMFIL: | Swappable Storage Area for RAM File Names | LPFLSZ*
\ \ LPTN
+-------------------------------------------------------+ \ /
If the assembly flag, SMFLG, is set, indicating a 2020 monitor, then
the following additional storage is assembled in the resident area of
the monitor:
+-------------------------------------------------------+
L11A: | Holds Fake -11 Adr of Buf |
| (1 entry / LPT ) |
|-------------------------------------------------------|
LPWINA: | Address of Unibus Window |
|-------------------------------------------------------| / \
LPACS: | AC Storage During LPT Interrupt | |
| | 16
|-------------------------------------------------------| \ /
LPSTAK: | | / \
| PDL During LPT Interrupt | LPSLEN
\ \ |
|-------------------------------------------------------| \ /
LPXJEN: | XJEN Instr. for Dismissing LPT Interrupt |
|-------------------------------------------------------| / \
LPXPTB: | LPT Interrupt Instr. is XPCW to this 4-word Blk | LPTN(1)*4
+-------------------------------------------------------+ \ /
225
MONITOR TABLES
LPT-STORAGE-AREA (Cont.)
0 11 12 23 4 5 6 7 8 9 0 1 2 3 4 5
+-------------------------------------------------------+
LPTSTS: | LPTFE | LPTMX | | | | | | | | | | | | |
+-------------------------------------------------------+
Symbol Bits Pointer Content
LP%FE 0-11 LPTFE Bytes now in front end
LP%MX 12-23 LPTMX Max. bytes allowed in front end
LP%LHC 24 LPLHC Loading has completed flag for
RAM/VFU load
LP%HE 25 LPTHE Hard error on this LPT:
LP%OBF 26 LPOBF Output is being flushed
LP%MWS 27 LPMWS MTOPR is waiting for a status to
arrive
LP%ER 28 LPTER LPT had an error
LP%OL 29 LPTOL LPT on-line
LP%TBL 30 LPTBL LPT is over allocation
LP%TWT 31 LPTWT Request on Q.
LP%THN 32 LPTHN Line printer control failed
LP%OPN 33 LPOPN LPT is opened
LP%ALI 34 ALTI Interrupt buffer pointer
LP%ALP 35 ALTP Buffer Pointer
226
MONITOR TABLES
LPT-STORAGE-AREA (Cont.)
0 5 6 17 18 19 20 35
+-------------------------------------------------------+
LPTST1: | LPPSI | LPPAG | | | LPSST |
+-------------------------------------------------------+
Symbol Bits Pointer Content
LP%PSI 0-5 LPPSI Channel number on which
PSI's are desired
LP%PAG 6-17 LPPAG Page Counter
LP%LCP 18 LPLCP Lower case printer
LP%SHA 19 LPSHA Status has arrived
LP%SST 20-35 LPSST Software status word
Entry as follows:
Symbol Bits Content
.DVFFE 28 Device has a fatal,
unrecoverable error
.DVFLG 29 Error logging information
follows
.DVFEF 30 EOF
.DVFIP 31 I/O in progress
.DVFSE 32 Software condition
.DVFHE 33 Hardware error
.DVFOL 34 Offline
.DVFNX 35 Nonexistent device
0 1 12 13 28 29 30 35
+-------------------------------------------------------+
LPTST2: | | SAVBCT | SAVBUS | | |
+-------------------------------------------------------+
Bits Pointer Content
0 ARROWF Convert control to arrow character
1-12 SAVBCT Saved byte counter during arrow
13-28 SAVBUS Saved bus address register
29 LPTLOR On when loading ram
227
MONITOR TABLES
LPT-STORAGE-AREA (Cont.)
2020 only:
0 1 8 9 23 24 35
+-------------------------------------------------------+
LPTST3: | | SAVCHR | LPTCC | |
+-------------------------------------------------------+
Bits Pointer Content
0 LPXBIT On if printer exists
1-8 SAVCHR Saved LP buffer character
24-35 LPTCC Count of characters sent to
printer
0 17 18 19 20 35
+-------------------------------------------------------+
LPTERR: | LPFRK | | | LPERR |
+-------------------------------------------------------+
Symbol Bits Pointer Content
LP%FRK 0-17 LPFRK Fork ID of owning PSI process
LP%MSG 18 LPMSG If on, suppress standard
messages
LP%PCI 19 LPPCI Page counter has interrupted
LP%ERR 20-35 LPERR Last error indication
0 5 6 15 16 17 18 35
+-------------------------------------------------------+
LPTCLS: | LPBSZ | | | | |
+-------------------------------------------------------+
Symbol Bits Pointer Content
LP%BSZ 0-5 LPBSZ Byte size of OPENF
LP%RLD 16 LPRLD Front end was reloaded
LP%NOE 17 LPNOE Note occurrence of EOF
228
MONITOR TABLES
LPT-STORAGE-AREA (Cont.)
0 15 16 17 31 32 33 34 35
+-------------------------------------------------------+
PGDATA: | PGFNC | | PGCTR | | | | |
+-------------------------------------------------------+
Symbol Bits Pointer Content
0-15 PGFNC Function code: load page
counter
16 PGENB Enable interrupts
17-31 PGCTR Page counter value
LP%IRP 32 LPIRP Interrupt request pending
LP%RBR 33 LPRBR RAM or VFU being reloaded
LP%LTR 34 LPLTR Translation RAM requires
reloading
LP%LVF 35 LPLVF VFU requires reloading
229
MONITOR TABLES
LS
LS is used to extract DECnet link service flags from a register.
Defined in: LLINKS
Format
The LSFLAGS field of a link service message
+------------------------------------------------------------------------+
| | LSZRO | | |
| | Must | | | *
| |be zero| | |
+------------------------------------------------------------------------+
Field LSINT (32-33) Interpretation
LS.INR=0 Normal data request
LS.IOT=1 Other data request (2 & 3 reserved)
Field LSMOD (34-35) The on/off indicator
LS.MNC=0 No change, code uses JUMPE
LS.MOF=1 Turn sublink off (ignored on "other")
LS.MON=2 Turn sublink on (ignored on "other")
LS.MRS=3 Reserved
230
MONITOR TABLES
LT
This is the DECnet Line table structure.
Defined in: DNADLL
Format
+------------------------------------------------------------------------+
LTLID | Line ID |
|------------------------------------------------------------------------|
| | | | | LTPRO | LTCTY | LTDBF | LTBSZ |
| | | | | Protocol | Circuit | Default |Maximum receive buffer | *
| | | | | type | type | number of | size on this line |
| | | | | | | buffers | |
|------------------------------------------------------------------------|
| LTBNO | LTNBP |
| Number of buffers to post | Number of buffers posted |
+------------------------------------------------------------------------+
For field LTFLG(0-1):
LTDVE 0 Driver believes device is present
LTCAD 1 Channel address is DECnet (Ethernet only)
Field LTSTA (2-3) State of line
Field LTCON (4-5) Controller (normal/loopback)
231
MONITOR TABLES
MB
The following is the definition of the DECnet-36 Message Block. This
is the fundamental data structure used to represent an individual
message. The Message Block is divided up into a public section and
several private sections which belong to each of the layers of the
DECnet architecture.
Defined in: D36PAR
Format
The Public Section
+------------------------------------------------------------------------+
MBNXT | Ptr to next message. Must be full word for NSP, see BEGSTR QP in |
| LLINKS.MAC |
|------------------------------------------------------------------------|
MBFMS | Pointer to first MSD (DLLs expect this field to be right here) |
|------------------------------------------------------------------------|
MBMSN | DDCMP message number (DLLs expect this field to be right here) |
|------------------------------------------------------------------------|
| MBDST | MBSRC |
| Destination node | Source node |
|------------------------------------------------------------------------|
MBDS1 | First 32 bits of destination |
|------------------------------------------------------------------------|
MBSR1 | First 32 bits of source |
|------------------------------------------------------------------------|
| | | | | | | | | | MBVST | MBABS |
* | MBFLG | Visits count | Adjacency's block size |
|------------------------------------------------------------------------|
MBCHN | Loopback channel (Circuit ID) |
|------------------------------------------------------------------------|
MBPRC | Procedure processor (NSP & SC) |
|------------------------------------------------------------------------|
MBAR1 | Argument storage #1 (NSP & SC) |
|------------------------------------------------------------------------|
MBAR2 | Argument storage #2 (NSP & SC) |
|------------------------------------------------------------------------|
MBAR3 | Argument storage #3 (NSP & SC) |
+------------------------------------------------------------------------+
For field MBFLG(0-8):
MBOTH 0 On the "other" sublink
MBBOM 1 Beginning of message
MBEOM 2 End of message
MBEBF 3 Message block has been allocated from emergency
buffer free list
MBPH2 4 Phase II message
MBDON 5 "Synchronous" interlock done bit (NSP & SC)
MBLCL 6 Bound for the local NSP
MBUNR 7 Unreachable
232
MONITOR TABLES
MD-D36PAR
This is the DECnet-36 Message Segment Descriptor. Every Segment of
the message is described by this small block. In the typical case,
this descriptor resides in the owner's (the owner being a level of
DECnet) portion of the Message Block.
Defined in: D36PAR
Format
Input Meaning Output Meaning
+------------------------------------------------------------------------+ /\
MDNXT | Must be zero Ptr to next MSD | QP.LEN
\ \ \/
|------------------------------------------------------------------------|
MDPTR | ILDB ptr into msg IDPB ptr into msg |
|------------------------------------------------------------------------|
MDAUX | Not used ILDB ptr to beg of msg |
|------------------------------------------------------------------------|
MDBYT | Bytes left to read Bytes written so far |
|------------------------------------------------------------------------|
| MDVMC | | MDALL | *
| | | Allocated length in bytes |
|------------------------------------------------------------------------|
MDALA | Allocated address of segment's data |
+------------------------------------------------------------------------+
Field MDVMC (0-2) Virtual map context
VMC.XC=0 EXEC Context (Map through EPT)
VMC.US=1 USER Context (Map through UPT)
VMC.NO=2 DO NOT Map (Physical Address)
233
MONITOR TABLES
MD-NIPAR
MD is the Network Interconnect (NI) Message Segment Descriptor block.
Defined in: NIPAR
Format
Input Meaning Output Meaning
+------------------------------------------------------------------------+ /\
MDNXT | Must be zero Ptr to next MSD | 1
\ \ \/
|------------------------------------------------------------------------|
MDPTR | ILDB ptr into msg IDPB ptr into msg |
|------------------------------------------------------------------------|
MDAUX | Not used ILDB ptr to beg of msg |
|------------------------------------------------------------------------|
MDBYT | Bytes left to read Bytes written so far |
|------------------------------------------------------------------------|
| MDVMC | | MDALL | *
| | | Allocated length in bytes |
|------------------------------------------------------------------------|
MDALA | Allocated address of segment's data |
+------------------------------------------------------------------------+
Field MDVMC (0-2) Virtual map context
VMC.XC=0 EXEC Context (Map through EPT)
VMC.US=1 USER Context (Map through UPT)
VMC.NO=2 DO NOT Map (Physical Address)
234
MONITOR TABLES
MN
MN represents the format of the DECnet-36 MENUVER field of the connect
data. This field specifies what other connect data follows and what
version of Session Control is running on the other node.
Defined in: SCPAR
Format
MENUVER
+------------------------------------------------------------------------+
| | | | | |
* | | | | | |
+------------------------------------------------------------------------+
Field MNRPA (0-0) RQSTRID, PASSWRD, account fields are included
Field MNUSR (1-1) USRDATA included
Field MNRSV (2-4) Reserved field
Field MNVER (5-6) Version of session control
235
MONITOR TABLES
MONITOR-STATISTICS
This table is available through GTTAB and is used by WATCH and EXEC.
Defined in: STG
Format
+-------------------------------------------------------+
SKDTM0: | Time spent in SKDNUL with balance set empty |
|-------------------------------------------------------|
SKDTM1: | Time spent in SKDNUL with balance set non-empty |
|-------------------------------------------------------|
SKDTM2: | Time spent running scheduler |
|-------------------------------------------------------|
SPTTIM: | Time spend in pager trap code |
|-------------------------------------------------------|
DRMRD: | Number of drum reads |
|-------------------------------------------------------|
DRMWR: | Number of drum writes |
|-------------------------------------------------------|
DSKRD: | Number of disk reads |
|-------------------------------------------------------|
DSKWR: | Number of disk writes |
|-------------------------------------------------------|
TTYBKS: | Number of tty wakeups |
|-------------------------------------------------------|
TTINTS: | Number of terminal interrupts |
|-------------------------------------------------------|
BSTSUM: | Integral of NBPROC DT |
|-------------------------------------------------------|
RJTSUM: | Integral of NBPROC|NGOJOB DT |
|-------------------------------------------------------|
RJAV: | Exponential average of number runnable forks | / \
| | NRJAVS
| | =3
\ \ \ /
|-------------------------------------------------------|
DSKWT: | Sum of process disk wait times |
|-------------------------------------------------------|
DRMWT: | Sum of process drum wait times |
|-------------------------------------------------------|
NTTYIN: | Total number terminal input characters |
|-------------------------------------------------------|
NTTYOT: | Total number terminal output characters |
|-------------------------------------------------------|
NGCCOR: | Count of GCCORs |
|-------------------------------------------------------|
GCCTIM: | Integral of GCCOR time |
|-------------------------------------------------------|
NREMR: | Count of WS removals while runnable |
236
MONITOR TABLES
MONITOR-STATISTICS (Cont.)
|-------------------------------------------------------|
BSWT: | Sum of process wait times |
|-------------------------------------------------------|
SKDOVH: | Accumulated SCHED overhead time in HP units |
|-------------------------------------------------------|
SKDIDL: | Accumulated idle time in HP units |
|-------------------------------------------------------|
SKDSWP: | Accumulated swap-wait time in HP units |
|-------------------------------------------------------|
USRTIM: | Accumulated user time in milliseconds |
|-------------------------------------------------------|
HQFSUM: | Integral of NGQFK DT |
|-------------------------------------------------------|
LQFSUM: | Integral of NLQFK DT |
|-------------------------------------------------------|
DWRWT: | Sum of process disk write wait |
|-------------------------------------------------------|
NAJBAL: | Number of forced AJBALS calls |
|-------------------------------------------------------|
SNRSUM: | Integral of SUMNRN |
|-------------------------------------------------------|
RPQSUM: | Integral of NRPLQ |
|-------------------------------------------------------|
HSPTIM: | HP pager trap time |
|-------------------------------------------------------|
NCSWCH: | Number of context switches |
|-------------------------------------------------------|
BGNDTM: | Time doing background stuff (TTCH7, ....) |
|-------------------------------------------------------|
STRPCT: | System total page traps |
|-------------------------------------------------------|
SRPQSC: | System total "saves" from RPLQ |
|-------------------------------------------------------|
SGCCWR: | Number writes from GCCOR |
|-------------------------------------------------------|
NWSSUM: | Integral of number WS in memory |
|-------------------------------------------------------|
SKDFIL: | Integral of wait time with out swap waits |
|-------------------------------------------------------|
NWSLOD: | Count of WS loads |
|-------------------------------------------------------|
NREMJ: | Count of balance set removals while runnable |
|-------------------------------------------------------|
SXGCWR: | Number writes from XGC |
|-------------------------------------------------------|
TTWAKN: | Terminal input wakeup count |
|-------------------------------------------------------|
DSKRVC: | Skip reads count |
|-------------------------------------------------------|
CIPKSN | CI Packets Sent |
237
MONITOR TABLES
MONITOR-STATISTICS (Cont.)
|-------------------------------------------------------|
CIPKRC | CI Packets Received |
|-------------------------------------------------------|
SCAOSN | SCA Overhead messages sent |
|-------------------------------------------------------|
SCAORC | SCA Overhead messages received |
|-------------------------------------------------------|
MSCSNT | MSCP Driver messages sent |
|-------------------------------------------------------|
MSCRCV | MSCP Driver messages received |
|-------------------------------------------------------|
SVSEND | MSCP Server messages sent |
|-------------------------------------------------------|
SVRECV | MSCP Server messages received |
|-------------------------------------------------------|
CFSSND | CFS messages sent |
|-------------------------------------------------------|
CFSRCV | CFS messages received |
|-------------------------------------------------------|
SCSJSN | SCS% messages sent |
|-------------------------------------------------------|
SCSJRC | SCS% messages received |
|-------------------------------------------------------|
CMDQS | CI Command Q usage Q0 |
|-------------------------------------------------------|
| CI Command Q usage Q1 |
|-------------------------------------------------------|
| CI Command Q usage Q2 |
|-------------------------------------------------------|
| CI Command Q usage Q3 |
|-------------------------------------------------------|
IPSND | IP Datagrams sent |
|-------------------------------------------------------|
IPRCV | IP Datagrams received |
|-------------------------------------------------------|
DNASND | DECnet Datagrams sent |
|-------------------------------------------------------|
DNARCV | DECnet Datagrams received |
|-------------------------------------------------------|
SCSJDS | SCS% Datagrams sent |
|-------------------------------------------------------|
SCSJDR | SCS% Datagrams received |
|-------------------------------------------------------|
MSCDRC | MSCP Driver datagrams received |
|-------------------------------------------------------|
HSCELP | HSCP Error-log datagrams received (PPD byte 5) |
+-------------------------------------------------------+
238
MONITOR TABLES
MSCCID
This table keeps track of the current SCA connect id of each MSCP
driver connection.
Defined in: PHYMSC
Index: MSCP driver connect id
Format
+-------------------------------------------------------+ /|\
MSCCID | SCA connect-id | |
|-------------------------------------------------------| |
| . | |
| . | CTABSZ
| . | |
/ . / |
/ . / |
| . | |
|-------------------------------------------------------| \|/
Notes: Zero indicates unused.
-1,,-1 indicates an entry that is no longer connected.
Anything else is a valid connect id.
239
MONITOR TABLES
MSCINT
This table describes the time-out interval to wait for an MSCP driver
connect id.
Defined in: PHYMSC
Index: MSCP driver connect id
+-------------------------------------------------------+
MSCINT | Time-out interval | / \
|-------------------------------------------------------| |
| | |
| | |
/ / CTABSZ
/ / |
| | |
| | |
|-------------------------------------------------------| \ /
240
MONITOR TABLES
MSCOLD
This table contains old connect id values for driver MSCP and is
mainly for recovery purposes.
Defined in: PHYMSC
Index: MSCP driver connect-id
+-------------------------------------------------------+
MSCOLD | SCA connect-id | / \
|-------------------------------------------------------| |
| | |
| | |
/ / CTABSZ
/ / |
| | |
| | |
|-------------------------------------------------------| \ /
Notes: See MSCCID.
241
MONITOR TABLES
MSCP SERVER COMMAND HEADER
This header resides within the invisible SYSAP area of an SCA message
and contains command-specific information for the MSCP server.
Defined in: PHYMVR
+-------------------------------------------------------+
.QCRTN=-13 | Return address for this command |
|-------------------------------------------------------|
.QCNXT=-12 | Pointer to next queued command |
|-------------------------------------------------------|
.QCLST . | Pointer to previous queued command |
|-------------------------------------------------------|
.QCPID . | Virtual page for I/O |
|-------------------------------------------------------|
.QCSTS . | Status | *
|-------------------------------------------------------|
.QCIOR | IORB address |
|-------------------------------------------------------|
.QCDBD | Buffer name |
|-------------------------------------------------------|
.QCTMO | Time-out time |
|-------------------------------------------------------|
.QCDBG | Unused |
|-------------------------------------------------------|
.QCRT2 | Return address for returning packet to SCA |
| if the command is queued |
+-------------------------------------------------------+
0 1 2 3 8 9 17 18 35
+-------------------------------------------------------+
.QCSTS | | | | | | |
+-------------------------------------------------------+
Symbol Bits Meaning
MS.COQ 0 Command is queued
MS.ABT 1 Command is aborted
MS.CTO 2 Command is timed out
242
MONITOR TABLES
MSCP SERVER COMMAND HEADER (Cont.)
QCSTS 3-8 Command state, which can be:
STCMD==0 Treat as incoming command
STWAE==1 Waiting to allocate end
STWSR==2 Waiting to send data (retryable)
STWRR==3 Waiting to request data (retryable)
STWSE==4 Waiting to send end packet (IO only) state
STWSD==5 Wait for send data state
STWRD==6 Wait for receive data state
STIAC==7 IORB active (IO only) state
STWSB==10 Waiting to send buffer (IO only) state
STWRB==11 Waiting to request buffer (IO only) state
QCCNT 18-35 Timed retry counter
243
MONITOR TABLES
MSCP SERVER STORAGE
This storage contains variables used by the MSCP server module
(PHYMVR).
Defined in: STG, PHYMVR
+-------------------------------------------------------+
SVSTSW: | Status Word | *
|-------------------------------------------------------|
SVSLSX: | Index into SCDBTB for listener |
|-------------------------------------------------------|
SRVCHK: | Flags for periodic check |
|-------------------------------------------------------|
SRVCKT: | Next time to check |
|-------------------------------------------------------|
SVIRBH: | First free IORB |
|-------------------------------------------------------|
SVBDKN: | # of disks to broadcast Online |
|-------------------------------------------------------|
SVILCM: | # of illegal commands |
|-------------------------------------------------------|
SVLCMO: | Last server command routine address |
|-------------------------------------------------------|
SVPKIU: | # of packets in use |
|-------------------------------------------------------|
SVMKIU: | Max # of packets in use |
|-------------------------------------------------------|
SVCMIU: | # of commands in use |
|-------------------------------------------------------|
SVMCIU: | Max # of commands in use |
|-------------------------------------------------------|
SVIPIU: | I/O pages in use |
|-------------------------------------------------------|
SVMPIU: | Max I/O pages in use |
|-------------------------------------------------------|
SVBKNS: | Times requed because of nsked events |
|-------------------------------------------------------|
SVCMDL: | Table of command counts | /|\
| (parallel to MSSDSP) | |
| | NMSFCN
| | |
\ \ \|/
|-------------------------------------------------------|
SVCMRT: | Table of retried command counts |
| (parallel to MSSDSP) |
| |
| |
\ \
+-------------------------------------------------------+
244
MONITOR TABLES
MSCP SERVER STORAGE (Cont.)
0 1 2 35
+-------------------------------------------------------+
SVSTSW: | | | | |
+-------------------------------------------------------+
Symbol Bits Meaning
SVSINF 0 Server has been initialized
SVSILB 1 Do not issue more MSSCGL BUGINFs
SVSLIS 2 OK to open a listener
245
MONITOR TABLES
MSCTMO
This is the time left to wait for a remote MSCP driver connection.
Defined in: PHYMSC
Index: MSCP driver connect-id
+-------------------------------------------------------+ / \
MSCTMO | Time left | |
|-------------------------------------------------------| |
| | |
| | |
/ / CTABSZ
/ / |
| | |
| | |
+-------------------------------------------------------+ \ /
246
MONITOR TABLES
MT
NI Multi-cast address block. There is a block for each Multi-cast
address that has been enabled for the NI port. Multi-cast address
blocks are allocated at location MCTADR. There are NMTT (16) blocks
in the table. The word MTUSE contains the number of NI multi-cast
address blocks currently in use. The beginning of the table is
pointed to by channel block word PSMTT, that is, PSMTT points to
MCTADR.
Defined in: PHYKNI
Format
+------------------------------------------------------------------------+
MTHAD | High order address |
|------------------------------------------------------------------------|
| MTLAD | *
| Low order address |
+------------------------------------------------------------------------+
0 34 35
+------------------------------------------------------------------------+
MTLAD | | |
+------------------------------------------------------------------------+
Bit Symbol Contents
35 MTENA Enable bit
247
MONITOR TABLES
MTA-STORAGE-AREA
Magtape storage area; each entry (unless otherwise noted) is MTAN
words long where MTAN equals the number of magtape units on the
system.
Defined in: STG
Format
+-------------------------------------------------------+ / \
MTALCK: \ Lock Word \ MTAN
|-------------------------------------------------------| \ /
| |*/ \
MTASTS: \ Status of Unit \ MTAN
|-------------------------------------------------------| \ /
MTANR1: | Nonresident Storage for Magtape | / \
| | MTAN
\-------------------------------------------------------\ \ /
MTANR2: | Nonresident Storage for Magtape | / \
| | MTAN
\-------------------------------------------------------\ \ /
MTANR3: | Nonresident Storage for Magtape | / \
| | MTAN
\-------------------------------------------------------\ \ /
MTANR4: | Nonresident Storage for Magtape | / \
| | MTAN
\-------------------------------------------------------\ \ /
MTANR5: | Nonresident Storage for Magtape | / \
| | MTAN
\-------------------------------------------------------\ \ /
MTANR6: | Nonresident Storage for Magtape | / \
| | MTAN
\ \ \ /
|-------------------------------------------------------|*/ \
MTARS1: \ Resident Storage for Magtape \ MTAN
|-------------------------------------------------------| / \
MTPSFK: \ PSI | Fork # \ MTAN
|-------------------------------------------------------| \ /
MTCUTB: | CDB Table | UDB Table | / \
\ | (1 Entry/UDB) \ MTAN
|-------------------------------------------------------| \ /
| | / \
MTAPBF: | Space for Buffer Page Pointers | MTPBFL=
| |MTBUFN*MAXPPB
\ \ +MTAN
|-------------------------------------------------------| \ /
| | / \
MTIRBF: | Space for IORBs | MTABFL=
| | MTAN*MTBUFN*
\ \ MTIRBL
248
MONITOR TABLES
MTA-STORAGE-AREA (Cont.)
|-------------------------------------------------------| \ /
| | / \
MTIOWD: \ IOWD for Next Transfer \ MTAN
|-------------------------------------------------------| \ /
| | / \
MTBIOW: \ Backup IOWD for Next Transfer \ MTAN
|-------------------------------------------------------| \ /
| | / \
MTAOLS: \ Length of last Xfer | \ MTAN
|-------------------------------------------------------| \ /
| | / \
MTARCE: \ Total Error Count \ MTAN
|-------------------------------------------------------| \ /
REWCNT: | Number of Rewinding Units |
|-------------------------------------------------------|
MTERAS: | Rewrite Erase Counter |
|-------------------------------------------------------|
MTPNTR: | IOWD During Transfer |
|-------------------------------------------------------|
MTAUNT: | Unit Currently Attached to Controller |
|-------------------------------------------------------|
MTERRC: | Retry Counter |
|-------------------------------------------------------|
MTERFL: | State of Retry |
|-------------------------------------------------------|
MTACOM: | CONO Word of Current Operation |
|-------------------------------------------------------|
MTDINR: | Return Address for Data Interrupt |
|-------------------------------------------------------|
MTACLS: | Clock Routine Switch, 0 for No Clock Wanted |
|-------------------------------------------------------| / \
TLABBP: \ PNTR to Locked Buffer Page \ 2*MTAN
|-------------------------------------------------------| \ /
TLABR0: | | RCNT | / \
\ Resident flags | Record count info \ MTAN
|-------------------------------------------------------| \ /
MTAJB0: | JOB 0 flag for MTA unit came on line |
+-------------------------------------------------------+
249
MONITOR TABLES
MTA-STORAGE-AREA (Cont.)
The following MTA storage items are in the nonresident area of the
monitor and each item is MTAN words long.
0 17 18 35
+-------------------------------------------------------+*/ \
| | MTRS | MTAN
MTANR1: \ Flags, Density, Mode | Rec size in Hdw. Bytes \ \ /
|-------------------------------------------------------| / \
| MTBYT | MTBUF | MTAN
MTANR2: \ Initial LH of FILBYT | Ptr. to Buffer Pages List \ \ /
|-------------------------------------------------------| / \
| 0 5|6 11|12 17|18 23| | |
| MTHBW | MTUBW | MTCSB | MTCUB | | |
MTANR3: |Hdw.Byts|UserByts|Current | Current| | MTAN
| Per Wd | Per Wd |Service | User | | |
| | |Routine | Buffer | | |
| | |Buffer | | | \ /
|-------------------------------------------------------| / \
| MTCIRB | MTCUP | |
MTANR4: \ Current IORB in Use | Current User Page \ MTAN
|-------------------------------------------------------| \ /
| MTUBB | MTUBP | / \
MTANR5: \ User Bytes per Buffer | User Bytes per Page \ MTAN
|-------------------------------------------------------| \ /
| MTALTC | MTLIRB | / \
MTANR6: \ Last Transfer Count | Last Dump Mode IORB Adr. \ MTAN
|-------------------------------------------------------| \ /
| |*/ \
TLABL0: \ Flags \ MTAN
|-------------------------------------------------------| \ /
| TPERM | TPFRK | / \
TLABL1: \ Error codeset by MTCON | Tape fork for PSI \ MTAN
|-------------------------------------------------------| \ /
| TPJFN | TPLBLS | / \
TLABL2: \ Saved JFN | Tape label buffers in SWAP\ MTAN
|-------------------------------------------------------| \ /
| FSSAV | / \
TLABL3: \ Place to save file status \ MTAN
|-------------------------------------------------------| \ /
| flags, section # | TPMTRS |*/ \
TLABL4: \ | Place to save Rec Size \ MTAN
250
MONITOR TABLES
MTA-STORAGE-AREA (Cont.)
|-------------------------------------------------------| \ /
| |*/ \
TLABL5: \ Tape position info \ MTAN
|-------------------------------------------------------| \ /
| TPBSZ | TPRSZ | / \
TLABL6: \ File blocksize | File record size \ MTAN
|-------------------------------------------------------| \ /
| TPSCUP | TPIOB | / \
TLABL7: | Saves Cur. pg. PTR for | I/O buffer address | MTAN
\ TPSBYT | \ \ /
|-------------------------------------------------------| / \
| SVIOS | |
TLABL8: \ Place to save IOS \ MTAN
|-------------------------------------------------------| \ /
| SVBLK | / \
TLABL9: \ Place to save black address \ MTAN
|-------------------------------------------------------| \ /
| TPLRC | TPPRO |*/ \
TLAB10: \ Local Status | Protection \ MTAN
|-------------------------------------------------------| \ /
| TPOCT | TPOBY | / \
TLAB11: \ old TPFCNT | old TPFBYN \ MTAN
|-------------------------------------------------------| \ /
| TPFSN | / \
TLAB12: \ Sixbit volume set name \ MTAN
|-------------------------------------------------------| \ /
| TPEXPD | / \
TLAB13: \ Expiration date \ MTAN
|-------------------------------------------------------| \ /
| | / \
TLAB14: \ Sequence Numbers \ MTAN
|-------------------------------------------------------| \ /
TPFCNT: | MT filcnt | / \
\ \ MTAN
|-------------------------------------------------------| \ /
TPFBYN: | MT filbyn | / \
\ \ MTAN
|-------------------------------------------------------| \ /
TPFLEN: | MT fillen | / \
\ \ MTAN
|-------------------------------------------------------| \ /
TPFLNX: | Count of Bytes Expected in next Record | / \
\ \ MTAN
|-------------------------------------------------------| \ /
TPSBYT: | Pointer to where JCW should go when record is complete| / \
\ \ MTAN
+-------------------------------------------------------+ \ /
251
MONITOR TABLES
MTA-STORAGE-AREA (Cont.)
0 1 2 3 4 5 6 7 8 9 17 8 9 0 1 2 3 4 5 6 7 8 29 1 2 35
+-------------------------------------------------------+
MTASTS | | | | | | | | | | | | | | | | | | | | | | | | |
entry +-------------------------------------------------------+
Symbol Bits Content
OPN 0 Unit has been opened
OPND 2 Unit has been opened for
dum mode
DMPWT 3 Waiting for a dump mode
operation to finish
LTERR 4 Error Occurred on last
dump mode operation
BUFA 5 Buffers have been assigned
CLOF 6 CLOSF in progress
MTOWT 7 MTOPR in progress
MTIELW 8 Inhibit error logging
MTNOWT 9 Do not set MTOWT
MT%ILW 18 Write lock
MT%DVE 19 Hardware device error
MT%DAE 20 Data error
MT%SER 21 No error retry
MT%EOF 22 EOF
MT%IRL 23 Illegal record length
MT%BOT 24 Beginning of tape
MT%EOT 25 Physical end of tape
MT%EVP 26 Even Parity
MT%DEN 27-28 Density (0 is normal)
.MTLOD=1 Low Density
(200 BPI)
.MTMED=2 Medium Density
(556 BPI)
.MTHID=3 High Density
(800 BPI)
MT%CCT 29-31 Character Counter
MT%NSH 32 Mode or density not supported
by hardware
252
MONITOR TABLES
MTA-STORAGE-AREA (Cont.)
0 19 20 21 29 30 35
+-------------------------------------------------------+
MTARS1 | | | MTPPB |MTNIR/ |
entry | | | | MTANIR|
+-------------------------------------------------------+
Bits Pointer Content
20 ABORTF An error occurred and IORBs
aborted
21-29 MTPPB Number of pages per buffer
30-35 MTNIR Number of IORBs queued
30-35 MTANIR Absolute version of MTNIR
0 1 2 8 9 10 11 12 14 15 17 18 35
+-------------------------------------------------------+
TLABR0 | | | | | | | | | |
entry +-------------------------------------------------------+
Bits Pointer Content
0 TPVV Volume valid flag
1 TPNVV Tape not valid
2-8 TPUNIT Actual mta unit
9 SNEOT EOT seen while writing labels
11 TPEDB EBCDIC Volume
12-14 TPMTDM Place to save data mode
15-17 TPMHBW Place to save bytes/wd
18-35 RCNT Record count info
0 1 2 5 6 7 8 10 11 14 15 17 18 35
+-------------------------------------------------------+
MTANR1 | |MTFCN | | |MTSTC| MTDN |MTDM | MTRS |
entry +-------------------------------------------------------+
Bits Pointer Content
0-1 MTNTM Count of EOFs written
2-5 MTFCN Last function performed
6 MTPAR Parity
7 MTRBF Reading backwards flag
8-10 MTSTC CLOSF function counter
11-14 MTDN Density
15-17 MTDM Data mode
18-35 MTRS Record size in hardware bytes
253
MONITOR TABLES
MTA-STORAGE-AREA (Cont.)
0 5 6 12 3 4 5 6 7 8 9 0 1 2 3 4 25 27 28 31 32 35
+-------------------------------------------------------+
TLABL0 | | | | | | | | | | | | | | | | | |
entry +-------------------------------------------------------+
Bits Pointer Content
0-5 TPSTAT State code
6-12 TPLPCS Label processing code
13 TPBEGF Set if beginning of spanned record
14 TPNBL New block read
15 TPUED Use EBCDIC data if set
16 TPFVM If set, first volume is mounted
17 TPLCT User label count
18 HDR1 HDR1 data valid
19 HDR2 HDR2 data valid
20 RCCHK Record count check error (TLRCHK)
21 TPEOF EOF 1/2 seen in TLRCHK (also EOV)
22 TPT20 TOPS-20 volume
23 UVLD UVLD data valid
24 TPLBD Unlabeled/labeled operation
25-27 TPDNS MTA density - declared by MTCON
28-31 TPNUL # of user labels written
0 1 2 3 8 9 17 18 35
+-------------------------------------------------------+
TLABL4 | | | | TPPSI | TPFSEC | TPMTRS |
entry +-------------------------------------------------------+
Bits Pointer Content
0 TPEUT End of user labels encountered
1 TPAPP Open for append
2 TPDPN MT opened
3-8 TPPSI Tape PSI for EOV
9-17 TPFSEC File section number
18-35 TPMTRS Place to save record size
254
MONITOR TABLES
MTA-STORAGE-AREA (Cont.)
0 4 5 6 11 12 13 14 17 18 26 27 35
+-------------------------------------------------------+
TLABL5 | | | | | | | |
entry +-------------------------------------------------------+
Bits Pointer Content
5 TPDVS Defer volume switch if set
6-11 TPFRMT Record format type code
12-13 TPMOD Tape mode
14-17 TPRVN Relative volume number
18-26 FSEQ Tape file position (seq. #)
27-35 USRSEQ User requested seq. #
0 1 2 17 18 35
+-------------------------------------------------------+
TLABL10 | | TPLRC | TPPRO |
entry +-------------------------------------------------------+
Bits Pointer Content
0-1 TPXLB Extra label count
2-17 TPLRC Count of last read record
0-17 TPGDS Local status
18-35 TPPRO Save protection here
255
MONITOR TABLES
MTCUTB
This table contains the address of the CDB and the UDB for each tape
drive on the system or the entry contains a zero if the drive does not
exist.
Defined in: STG
Index: Tape drive number
Format
+-------------------------------------------------------+
MTCUTB: | CDB | UDB | / \
+-------------------------------------------------------+ |
| . | |
| . | MTAN
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
256
MONITOR TABLES
NAMUTP
Name Unit Type Pointers. This table contains pointers to unit type
names for disks (RP06, RM03, ...) and magtapes (TU45, TU77, ...).
Defined in: PHYSIO
Format
+-------------------------------------------------------+
NAMUTP: | POINT 7,[ASCIZ/ (Illegal Type: 0) /] |
|-------------------------------------------------------|
| POINT 7,[ASCIZ/RP04/] |
|-------------------------------------------------------|
| . |
| . |
| . |
\ . \
+-------------------------------------------------------+
257
MONITOR TABLES
NE
This is the DECnet network event block. An NE block contains all
information about an event.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
NENXT | Pointer to next NE block on queue |
|------------------------------------------------------------------------|
NETIM | Time of event |
|------------------------------------------------------------------------|
NECBK | Address of callback routine |
|------------------------------------------------------------------------|
NEECP | Pointer to event communications block |
|------------------------------------------------------------------------|
| NECCL | NECTY | NEDLN |
| Event class | Event | Data length in bytes |
| | type | |
|------------------------------------------------------------------------|
| NEETP | |
| Entity type | |
|------------------------------------------------------------------------|
NEEID | Entity ID |
|------------------------------------------------------------------------|
NEDAT | Fullword pointer to data string |
+------------------------------------------------------------------------+
258
MONITOR TABLES
NF
This is the DECnet NMX Interface Function Argument Block, whose
purpose is to implement a standard calling interface between Network
Management (NTMAN) and the DECnet Layers.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
NFEID | Entity ID |
|------------------------------------------------------------------------|
| NFBYT | NFPRM |
| Byte count | Parameter Number |
|------------------------------------------------------------------------|
| | | | NFETY | NFSEL | NFBLN | *
| | | |Entity Type| Selector | Buffer Length |
|------------------------------------------------------------------------|
NFQUA | Qualifier |
|------------------------------------------------------------------------|
NFBUF | Buffer Address or Parameter value |
|------------------------------------------------------------------------|
NFBPT | Byte pointer to data |
+------------------------------------------------------------------------+
Field NFBFF (0-0) Buffer Flag
Field NFUBF (1-1) User Buffer passed (for return KNOWN NODES)
Field NFQUF (2-2) Qualifier Flag
259
MONITOR TABLES
NM
This is the Network Services Section of a DECnet message.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
* | | | | | NMSGN | NMMGF | NMCNT |
| NMFLG |Message segment number |The MSGFLG field | Number of times |
| | |of the NSP header| we've sent |
| | | | message |
|------------------------------------------------------------------------|
NMTIM | Time stamp |
|------------------------------------------------------------------------|
NMPRT | Pointer to port block |
|------------------------------------------------------------------------|
| NMLLA | NMRLA |
| Local link address | Remote link address |
|------------------------------------------------------------------------| /\
NMMSD | Space for MSD | MD.LEN
\ \ \/
|------------------------------------------------------------------------| /\
NMORQ | ORQ queue link | QP.LEN
\ \ \/
|------------------------------------------------------------------------|
NMMAG | Magic word for DTESRV |
|------------------------------------------------------------------------| /\
NMHDR | NSP header room | <<NMH.LN+3>/4>
\ \ \/
|------------------------------------------------------------------------|
NMMK1 | First mark |
|------------------------------------------------------------------------|
NMMK2 | Second mark |
+------------------------------------------------------------------------+
For field NMFLG(0-5):
NMACK 0 Needs to be ACKed
NMRET 1 Return msg to SC
NMDLY 2 ACK delay allowed
260
MONITOR TABLES
NN
The DECnet node block contains all the information LLINKS has to know
about a node. There is a node block for all nodes that we have active
links to. The node block is created when someone tries to connect to
a node that does not yet have a node block associated with it.
When the number of active links goes to zero, the node block is
subject to possible deletion. If the number of node blocks is larger
than NNDMAX, then the now unused node block is deleted after its
counters are logged with a 3.2 (database reused) event.
The list of node blocks is pointed to by the queue header NMXNDQ.
Note that many counters are full words, even though they only have to
be 16 bits wide. This is so the OPSTR logic generates a single
read-modify-write instruction when updating them and spares us the
worry of interlocking this data base.
Defined in: LLINKS
Format
NETWORK NODE BLOCK
+------------------------------------------------------------------------+ /\
NNNXT | Ptr to next node block | QP.LEN
\ \ \/
|------------------------------------------------------------------------|
NNTLZ | Time (from DNGTIM) when last zeroed |
|------------------------------------------------------------------------|
| | | | | NNNOD |
| | | | Network node ID (2 bytes) (HWORD | *
| | | | for speed) |
|------------------------------------------------------------------------|
NNTMC | Message timeouts to node |
|------------------------------------------------------------------------|
NNRBC | User bytes received from node |
|------------------------------------------------------------------------|
NNXBC | User bytes transmitted to node |
|------------------------------------------------------------------------|
NNRMC | User msgs received from node |
|------------------------------------------------------------------------|
NNXMC | User msgs transmitted to node |
|------------------------------------------------------------------------|
NNTBR | Total # of bytes received from node |
|------------------------------------------------------------------------|
NNTBX | Total # of bytes transmitted to node |
|------------------------------------------------------------------------|
NNTMR | Total # of messages received from node |
|------------------------------------------------------------------------|
NNTMX | Total # of messages received from node |
261
MONITOR TABLES
NN (Cont.)
|------------------------------------------------------------------------|
NNRCC | Connect inits received from node |
|------------------------------------------------------------------------|
NNXCC | Connect inits transmitted to node |
|------------------------------------------------------------------------|
NNRRC | Rejects received from node |
|------------------------------------------------------------------------|
NNXRC | Rejects transmitted to node |
|------------------------------------------------------------------------|
NNLKC | Current active links to node |
|------------------------------------------------------------------------|
NNLKM | Max active links to node |
|------------------------------------------------------------------------|
NNCRC | Connect resource errors received |
|------------------------------------------------------------------------|
NNDLY | Estimated round-trip delay (msecs) |
|------------------------------------------------------------------------|
NNSLZ | Seconds since last zeroed (time stamp) |
|------------------------------------------------------------------------|
NNPSZ | Pipe size (= 3 * last message's visit count) |
+------------------------------------------------------------------------+
For field NNFLG(0-1):
NNGDL 0 Set if we've "got delay", see UPDELAY
Field NNMSG (2-2) Set if we've sent a 'link broken' message
for this node
262
MONITOR TABLES
NO-SCLINK
The NO defines a single node in a bucket in the DECnet-36 node
name/number data base.
Defined in: SCLINK
Format
Represents a single node
+------------------------------------------------------------------------+
NONAM | Node name |
|------------------------------------------------------------------------|
NOADR | Node address |
+------------------------------------------------------------------------+
263
MONITOR TABLES
NO-SCPAR
There is one node name block for each node. Node name blocks are kept
on doubly linked lists, with the head of each list in a vector
MAX-NODES long.
Defined in: SCPAR
Format
Node name
+------------------------------------------------------------------------+
NONXT | POINTER TO NEXT NODE |
|------------------------------------------------------------------------|
NOLST | POINTER TO LAST NODE |
|------------------------------------------------------------------------|
NOCID | CIRCUIT ID USED ONLY FOR LOOPBACK |
|------------------------------------------------------------------------|
NOCNT | COUNT OF BYTES IN NODE NAME (DOESN'T NEED FULL WORD, REST IS FREE) |
|------------------------------------------------------------------------| /\
NONAM | NODE NAME TEXT | <<^D6+3>/4>
\ \ \/
+------------------------------------------------------------------------+
264
MONITOR TABLES
NR
The NR is the NRT (Network Remote Terminal) Data Block (also referred
to as the NRB). One block is allocated for each active link to hold
data associating the DECnet link with a terminal data block (TDB).
Defined in: NRTSRV
Format
+------------------------------------------------------------------------+
NRTDB | Dynamic ptr to associated TDB |
|------------------------------------------------------------------------|
| | | | | | | NRCHN | NRSTS | *
| NRFLG | DECnet channel number | Current status of DECnet link |
|------------------------------------------------------------------------|
NRSJB | Pointer to this link's SJB |
|------------------------------------------------------------------------|
| NRSIZ | NRPSI |
|Max chars in a segment on this link| SCJSYS's original PSI mask for |
| | NETUSER link |
|------------------------------------------------------------------------|
| NRRID | NRINA |
| Remotes node ID | Inactivity timer for NETHOST link |
+------------------------------------------------------------------------+
For field NRFLG(0-5):
NRCFG 0 Set if config msg has been sent
NRREL 1 This NRB is being released
NRUSR 2 0=Nethost link, 1=User netlink
NRTRN 3 This NRB is in transition
NRDEA 4 Deallocate TDB
265
MONITOR TABLES
NT
The NT structure defines the format of the data blocks that are used
to store the characteristics, counters, and states associated with the
network management entities; these entities are nodes, circuits,
lines, and modules. The blocks are also passed between the various
layers of DECnet for the purpose of setting and reading parameters,
and reading counters.
Defined in: NTMAN
Format
+------------------------------------------------------------------------+
| NTTYP | NTLEN | NTROU | | | | | | | NTQUA |
| Data | Length | Index to | NTDEV | Qualifier Parameter Number | *
| type | |routine to | | |
| | | call | | |
|------------------------------------------------------------------------|
| | | | | | | | | | | | | NTBSZ | NTSEQ |
| NTAPL | NTINF | | |Buffer size needed |Sequence or type of field | *
| | | | | (if needed) | |
+------------------------------------------------------------------------+
For field NTTYP(0-4):
NT.FC 1 Coded format
NT.FCM 2 Coded multiple (this means special casing)
NT.FAI 3 ASCII image (8-bit)
NT.FDU 4 Decimal, unsigned. Cannot be zero.
NT.FDS 5 Decimal, signed
NT.FH 6 Hex integer
NT.FHI 7 Hex image
NT.FOC 8 Octal
NT.FDM 9 Internal data type only. Decimal, milliseconds.
NT.FVN 10 Internal data type only. Version number.
NT.FNE 11 Internal data type only. Node entity ID.
NT.FNN 12 Internal data type only. ASCII node name
NT.FCN 13 Internal data type only. ASCII circuit name
For field NTDEV(15-20):
NTD.R 15 DMR-11
NTD.N 16 Ethernet (KLNI)
NTD.C 17 Computer Interconnect (KLPI)
NTD.P 18 DDP
NTD.K 19 KDP
NTD.D 20 DTE-20 (UGH)
266
MONITOR TABLES
NT (Cont.)
For field NTAPL(0-3):
NTA.E 0 Executor
NTA.L 1 Loop nodes
NTA.R 2 Remote nodes
NTA.H 3 Home area nodes only
For field NTINF(4-9):
NTI.C 4 Characteristics (listed in spec as 'C')
NTI.S 5 Status (listed in spec as 'S')
NTI.% 6 Summary (listed in spec as '*')
NTI.K 7 Circuit State
NTI.Q 8 This parameter is qualified
NTI.N 9 None. noop bit, not necessary
Field NTSET (10-11) Settability restrictions
NTS. 0 0 means read and write
NTS.R 1 Read only parameter
NTS.W 2 Write only parameter
Field NTBUF (12-12) Buffer Field
267
MONITOR TABLES
NTCTAB
Network topology change fork table. This is the table used to notify
user processes of topology changes on the network.
Defined in: STG
Format
+-------------------------------------------------------+
NTCTAB: | Fork number | Interrupt channel | / \
+-------------------------------------------------------+ |
| . | |
| . | NTCMAX
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
268
MONITOR TABLES
NX
NX is block of "globals" used by DECnet NMX.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
| | | | | | | | | | | | NXPRM |
| NXFLG | | | | | Parameter/counter identifier | *
|------------------------------------------------------------------------|
NXNUM | Entity sequence number. (Node addr of line ID) |
|------------------------------------------------------------------------| /\
NXVAL | Maximum string size (32 bytes) | 8
\ \ \/
|------------------------------------------------------------------------|
NXMBY | Maximum number of bytes |
|------------------------------------------------------------------------|
NXADR | User virtual address of argument block |
|------------------------------------------------------------------------|
NXUUO | Saved calling UUO (need for STOTAC) |
|------------------------------------------------------------------------| /\
NXEID | String pointer to entity ID | BP.LEN
\ \ \/
|------------------------------------------------------------------------|
NXFNC | Function code |
|------------------------------------------------------------------------|
NXSEL | Selection criteria for function |
|------------------------------------------------------------------------| /\
NXDAT | String pointer field to data string | BP.LEN
\ \ \/
|------------------------------------------------------------------------|
NXERR | Error code |
+------------------------------------------------------------------------+
For field NXFLG(0-6):
NXWRM 0 Writing monitor's data base. 1=writing
NXWUS 1 Writing user's data string. 1=writing
NXZMC 2 Zeroing or clearing monitor core
NXCXP 3 Counter=1 or parameter=0
NXNIL 4 Not in layer. (I didn't bit)
NXECV 5 Do entity conversion
NXMCX 6 Buffer is in monitor context
Field NXNTY (9-11) Node type, if node
XP NX.EXN 1 Executor node
XP NX.REN 2 Remote node
XP NX.LPN 3 Loopback node
269
MONITOR TABLES
NX (Cont.)
Field NXLTY (12-14) Line type
XP NX.TST 0 Test bed driver (obsolete)
XP NX.DTE 1 DTE
XP NX.KDP 2 KDP
XP NX.DDP 3 DDP
XP NX.CIP 4 CI PORT
XP NX.NI 5 ETHERNET
XP NX.DMR 6 DMR
Field NXENT (15-17) Entity type
270
MONITOR TABLES
OA
Argument block used by DECnet Session Control and NSP. The OPEN
call's argument block.
Defined in: D36PAR
Format
OPEN Argument Block
+------------------------------------------------------------------------+
OASCB | SCB ID for new port |
|------------------------------------------------------------------------|
OANOD | Destination node |
|------------------------------------------------------------------------|
OAFLO | Flow control type |
|------------------------------------------------------------------------|
OAGOL | Data request goal |
|------------------------------------------------------------------------|
OASIZ | Max bytes allowed in a message segment |
|------------------------------------------------------------------------|
OASCV | Session control's entry address |
|------------------------------------------------------------------------|
OACIR | Loopback circuit |
+------------------------------------------------------------------------+
271
MONITOR TABLES
OFNLEN
Open File Length Table. This resident table contains the current file
byte size and file byte count for each open file. It is parallel to
the OFN areas of the SPT and SPTH tables.
Defined in: STG
Index: OFN number
Format
0 5 6 35
+-------------------------------------------------------+
| OFNBSZ | OFNBC | / \
OFNLEN: | Byte Size| File Byte Count | |
|-------------------------------------------------------| |
| | NOFN
| | |
| | |
\ \ \ /
+-------------------------------------------------------+
272
MONITOR TABLES
PA
The PA structure is used to keep the information for a DECnet network
management parameter. It is pointed to by a table, generated with the
PARAMETER macro. This structure is read by the routine NTPARM in
D36COM.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
PAPNR | Parameter Number |
|------------------------------------------------------------------------|
| | | | | | | PADEF |
| PAFLA | | Default value for parameter |
|------------------------------------------------------------------------|
| PAMAX | PAMIN |
| Maximum value that can be set | Minimum value that be set |
|------------------------------------------------------------------------|
PASET | Instruction to execute to set the parameter |
|------------------------------------------------------------------------|
PARED | Instruction to execute to read the parameter |
|------------------------------------------------------------------------|
PACLR | Instruction to execute to clear the parameter |
+------------------------------------------------------------------------+
For field PAFLA(0-4):
PANST 0 Cannot set this parameter
PANCL 1 Cannot clear this parameter
PANRD 2 Cannot read this parameter (Write only memory)
PABEX 3 Buffer from NTMAN expected
PADRC 4 Don't range check "set" value
273
MONITOR TABLES
PB-PHYKNI
This is the NI Port Block data structure. The port block is used by
both the monitor and the NI microcode to transfer and store control
and status information.
Defined in: PHYKNI
Format
+------------------------------------------------------------------------+
PBCQI | Command queue interlock |
|------------------------------------------------------------------------|
PBCQF | Command queue flink |
|------------------------------------------------------------------------|
PBCQB | Command queue blink |
|------------------------------------------------------------------------|
PBRS0 | Reserved for software |
|------------------------------------------------------------------------|
PBRQI | Response queue interlock |
|------------------------------------------------------------------------|
PBRQF | Response queue flink |
|------------------------------------------------------------------------|
PBRQB | Response queue blink |
|------------------------------------------------------------------------|
PBRS1 | Reserved |
|------------------------------------------------------------------------|
PBUQI | Unknown protocol type queue interlock |
|------------------------------------------------------------------------|
PBUQF | Unknown protocol type queue flink |
|------------------------------------------------------------------------|
PBUQB | Unknown protocol type queue blink |
|------------------------------------------------------------------------|
PBUQL | Unknown protocol type queue length |
|------------------------------------------------------------------------|
PBRS2 | Reserved |
|------------------------------------------------------------------------|
PBPTT | Protocol type table starting address |
|------------------------------------------------------------------------|
PBMTT | Multicast address table starting address |
|------------------------------------------------------------------------|
PBRS3 | Reserved |
|------------------------------------------------------------------------|
PBER0 | KLNI error logout 0 |
|------------------------------------------------------------------------|
PBER1 | KLNI error logout 1 |
|------------------------------------------------------------------------|
PBLAD | Address of channel logout word 1 |
|------------------------------------------------------------------------|
PBCLO | Contents of channel logout word 1 |
274
MONITOR TABLES
PB-PHYKNI (Cont.)
|------------------------------------------------------------------------|
PBPBA | Port control block base address |
|------------------------------------------------------------------------|
PBPIA | PI level assignment |
|------------------------------------------------------------------------|
PBIVA | Interrupt vector assignment |
|------------------------------------------------------------------------|
PBCCW | Channel command word |
|------------------------------------------------------------------------|
PBRCB | Pointer to read counters buffer |
+------------------------------------------------------------------------+
275
MONITOR TABLES
PB-SCPAR
DECnet-36 Process Descriptor Block. A "process block" is used to name
local and remote processes. There are two of these contained in the
Connect Block, one for the destination name and one for the source
name.
Defined in: SCPAR
Format
Process Descriptor Block
+------------------------------------------------------------------------+
| PBSIZ | PBFOR | PBOBJ |
| The length field | Format | Object type |
|------------------------------------------------------------------------|
| PBNCT | |
| Name byte count | |
|------------------------------------------------------------------------| /\
PBNAM | End user name | <<^D16+3>/4>
\ \ \/
|------------------------------------------------------------------------|
| PBGRP | PBUSR |
| GRPCODE | USRCODE (GRPCODE + USRCODE = PPN) |
+------------------------------------------------------------------------+
276
MONITOR TABLES
PC
PC is the read port counters block. There are two words in the table
for each entry. PC is used by NTCTRS for the SHOW COUNTERS and SHOW
and ZERO COUNTERS network management functions.
Defined in: NIPAR
Format
+------------------------------------------------------------------------+
| |
| |
|------------------------------------------------------------------------|
PCSLZ | Seconds since last zeroed |
|------------------------------------------------------------------------|
| |
| |
|------------------------------------------------------------------------|
PCBYR | Bytes received |
|------------------------------------------------------------------------|
| |
| |
|------------------------------------------------------------------------|
PCDGR | Datagrams received |
|------------------------------------------------------------------------|
| |
| |
|------------------------------------------------------------------------|
PCBYS | Bytes sent |
|------------------------------------------------------------------------|
| |
| |
|------------------------------------------------------------------------|
PCDGS | Datagrams sent |
|------------------------------------------------------------------------|
| |
| |
|------------------------------------------------------------------------|
PCUBU | User buffer unavailable |
+------------------------------------------------------------------------+
277
MONITOR TABLES
PCB (PORT CONTROL BLOCK)
The mechanism where the KL10 and the CI20 share the queue structures
is controlled by the Port Control Block. The Port Control Block is a
data structure that exists in the physical memory space of the KL10.
Both the KL10 and the CI20 read and write the data in the PCB. The
PCB contains the link words for the queues and other control
information.
|
| Defined in: SCAPAR
+------------------------------------------------------+
.PBBDT | Buffer Descriptor Table Starting Address |
+------------------------------------------------------+
.PBMQE | Message Free Queue Entry Length |
+------------------------------------------------------+
.PBDQE | Datagram Free Queue Entry Length |
+------------------------------------------------------+
| Reserved |
+------------------------------------------------------+
.PBQ3I | Command Queue 3 Interlock |
+------------------------------------------------------+
.PBQ3F | Command Queue 3 FLINK |
+------------------------------------------------------+
.PBQ3B | Command Queue 3 BLINK |
+------------------------------------------------------+
.PBQ2I | Command Queue 2 Interlock |
+------------------------------------------------------+
.PBQ2F | Command Queue 2 FLINK |
+------------------------------------------------------+
.PBQ2B | Command Queue 2 BLINK |
+------------------------------------------------------+
.PBQ1I | Command Queue 1 Interlock |
+------------------------------------------------------+
.PBQ1F | Command Queue 1 FLINK |
+------------------------------------------------------+
.PBQ1B | Command Queue 1 BLINK |
+------------------------------------------------------+
.PBQ0I | Command Queue 0 Interlock |
+------------------------------------------------------+
.PBQ0F | Command Queue 0 FLINK |
+------------------------------------------------------+
.PBQ0B | Command Queue 0 BLINK |
+------------------------------------------------------+
.PBRQI | Response Queue Interlock |
+------------------------------------------------------+
.PBRQF | Response Queue FLINK |
+------------------------------------------------------+
.PBRQB | Response Queue BLINK |
278
MONITOR TABLES
PCB (PORT CONTROL BLOCK) (Cont.)
+------------------------------------------------------+
.PBMFI | Message Free Queue Interlock |
+------------------------------------------------------+
.PBMFF | Message Free Queue FLINK |
+------------------------------------------------------+
.PBMFB | Message Free Queue BLINK |
+------------------------------------------------------+
.PBDFI | Datagram Free Queue Interlock |
+------------------------------------------------------+
.PBDFF | Datagram Free Queue FLINK |
+------------------------------------------------------+
.PBDFB | Datagram Free Queue BLINK |
+------------------------------------------------------+
| Reserved |
+------------------------------------------------------+
| Reserved |
+------------------------------------------------------+
| Reserved |
+------------------------------------------------------+
| Reserved |
+------------------------------------------------------+
.PBER0 | Port Error Word 0 |
+------------------------------------------------------+
.PBER1 | Port Error Word 1 |
+------------------------------------------------------+
.PBER2 | Port Error Word 2 |
+------------------------------------------------------+
.PBER3 | Port Error Word 3 |
+------------------------------------------------------+
.PBER4 | Port Error Word 4 |
+------------------------------------------------------+
.PBPBA | PCB Base Address |
+------------------------------------------------------+
.PBPIA | PI Level |
+------------------------------------------------------+
| Reserved to Port |
+------------------------------------------------------+
.PBCCW | Channel Command Word |
+------------------------------------------------------+
| Reserved to Port |
+------------------------------------------------------+
279
MONITOR TABLES
PHYCHT
PHYSIO Channel Dispatch Tables. This table contains the names of
function dispatch tables for all supported channel types.
Defined in: STG
Format
+-------------------------------------------------------+ / \
PHYCHT: | .CTRH2 | RH2DSP | |
|-------------------------------------------------------| |
| .CTCI | KLPDSP | |
|-------------------------------------------------------| -PHYCHL
| .CTNI | KNIDSP | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
280
MONITOR TABLES
PHYUNT
PHYSIO Unit Dispatch Tables. Table of known unit dispatch routines.
Defined in: STG
Format
+-------------------------------------------------------+
PHYUNT: | Type (DSK)=.UTRP4 | DSK Unit Dispatch Adr. | / \
| | = RP4DSP | |
|-------------------------------------------------------| |
| Type (MTA)=.UTTM2 | MTA Unit Dispatch Adr. | |
| | = TM2DSP | |
|-------------------------------------------------------| |
| Type (DX20A)=.UTDXA | DX20 Dispatch Adr. | -PHYUNL
| | = DXADSP | |
|-------------------------------------------------------| |
| Type (DX20B)=.UTDXB | DX20 Dispatch Adr. | |
| | = DXBDSP | |
|-------------------------------------------------------| |
| Type (TU78) =.UTTM7 | TU78 Dispatch Adr. | |
| | = TM8DSP | \ /
+-------------------------------------------------------+
281
MONITOR TABLES
PI
This is the format of the NI% JSYS global portal ID.
Defined in: NIUSR
Format
Structure for global portal IDs
+------------------------------------------------------------------------+
| | PIFRK | PIPID |
| | Job wide fork | Job wide portal |
| | number | ID |
+------------------------------------------------------------------------+
282
MONITOR TABLES
PIDCNT
Process ID Count Table. This non-resident table holds the send quota
and count and the PID quota and count for each job.
Defined in: STG
Index: Job number
Format
0 8 9 17 18 26 27 35
+-------------------------------------------------------+
PIDCNT: | PIDSQ | PIDSC | PIDPQ | PIDPC | / \
| Send quota | Send count | PID quota | PID count | |
|-------------------------------------------------------| |
| . | |
| . | NJOBS
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
283
MONITOR TABLES
PIDTBL
Process ID Table. This non-resident table is a table of halfword
entries, one entry per PID; the number of entries in the table is two
times the number of jobs. (The monitor is assuming an average of 2
PIDs per job.) If a PID is in use, the table entry contains the
address of the PID header. PID's not in use are linked together;
PIDLST is the free PID header.
Defined in: STG
+-------------------------------------------------------+
PIDTBL: | ADR of PID Header 1 or | ADR of PID Header 2 or | / \
| Link to Next Free PID | Link to Next Free PID | |
|-------------------------------------------------------| |
| . | |
| . | |
| . |
| . | PIDTBS
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
284
MONITOR TABLES
PL
This is the NI portal list structure. This structure contains a table
of pointers to all Ethernet portal blocks defined by NI% jsys users.
Defined in: NIUSR
Format
+------------------------------------------------------------------------+
| PLMAX | PLNUM |
| Highest portal defined so far |Total number of portals defined so |
| | far |
|------------------------------------------------------------------------| /\
PLLIS | The actual portal list | MAXPOR
\ \ \/
+------------------------------------------------------------------------+
285
MONITOR TABLES
PR-NISRV
This is the NI Portal Table block.
Defined in: NISRV
Format
+------------------------------------------------------------------------+
PRNXT | Pointer to next block (must be first) |
|------------------------------------------------------------------------|
| | | | PREXI | PRBSZ |
| PRFLG | External portal | Receive buffer size |
| | ID | |
|------------------------------------------------------------------------|
PRUID | What user wants on callback |
|------------------------------------------------------------------------|
| PRPMD | PRPRO |
| Packing mode | Protocol type (bytes swapped) |
|------------------------------------------------------------------------|
PRCHN | Ethernet channel block address |
|------------------------------------------------------------------------|
PRMUL | Bit vector of enabled multicasts |
|------------------------------------------------------------------------|
PRPOS | Callback address |
|------------------------------------------------------------------------|
PRCHK | Check word (address of this block) |
|------------------------------------------------------------------------|
PRFQA | Free queue header address |
|------------------------------------------------------------------------|
PROXM | Outstanding transmits |
|------------------------------------------------------------------------|
PRORC | Outstanding receives |
|------------------------------------------------------------------------|
PRTLZ | Time at which counters were zeroed |
|------------------------------------------------------------------------|
PRBYR | Bytes received |
|------------------------------------------------------------------------|
PRDGR | Datagrams received |
|------------------------------------------------------------------------|
PRBYS | Bytes sent |
|------------------------------------------------------------------------|
PRDGS | Datagrams sent |
|------------------------------------------------------------------------|
PRUBU | User buffer unavailable |
+------------------------------------------------------------------------+
For field PRFLG(0-8):
PRCLO 0 Portal is closing
PRPAD 1 Pad flag
286
MONITOR TABLES
PR-NIUSR
This is the NI Portal block. One exists for each Ethernet portal
defined by the NI% JSYS.
Defined in: NIUSR
Format
+------------------------------------------------------------------------+
PRNXT | Pointer to next portal |
|------------------------------------------------------------------------|
| PRUPD | | | | | | PRLFK | PRFRK |
| User's | PRFLG | Job wide | Fork number of owning fork |
| portal ID | | fork # | |
|------------------------------------------------------------------------|
PRCHK | Check word |
|------------------------------------------------------------------------|
| PRTCH | PRRCH | PRSCH |
| Transmit completion | Receive completion | Status change |
| interrupt channel | interrupt channel | interrupt channel |
|------------------------------------------------------------------------|
PRUNB | UN block pointer |
|------------------------------------------------------------------------|
PRPID | Monitor's portal ID |
|------------------------------------------------------------------------| /\
PRXQH | Transmitted queue header | XR.LEN
\ \ \/
|------------------------------------------------------------------------| /\
PRRQH | Receive queue header | XR.LEN
\ \ \/
|------------------------------------------------------------------------|
PRTRQ | Transmit quota |
|------------------------------------------------------------------------|
PRRCQ | Receive quota |
|------------------------------------------------------------------------|
PRTIP | Number of transmit buffers queued up to NISRV |
|------------------------------------------------------------------------|
PRRIP | Number of receive buffers queued up to NISRV |
+------------------------------------------------------------------------+
For field PRFLG(6-11):
PRCCP 6 Close complete
PRRPS 7 Receive PSI requested
PRTPS 8 Transmit PSI requested
PRSPS 9 Status change PSI requested
287
MONITOR TABLES
PRMP
This table contains pointers to the DNA parameter and counter data
bases. The format for the data bases is described in the DNA
Parameter and Counter Data Base table.
Defined in: NTMAN
Format
+-------------------------------------------------------+
PRMP: | NODE pointer |
+-------------------------------------------------------+
| LINE pointer |
+-------------------------------------------------------+
| LOGGING pointer |
+-------------------------------------------------------+
| CIRCUIT pointer |
+-------------------------------------------------------+
| MODULE pointer |
+-------------------------------------------------------+
| EVENT pointer |
+-------------------------------------------------------+
Each pointer has the format:
+-------------------------------------------------------+
| COUNT | ADDRESS |
+-------------------------------------------------------+
The COUNT is the negative of the number of parameters in the data
base, and ADDRESS is the address of the first block in the data base.
288
MONITOR TABLES
PROCESS STORAGE AREA
This area contains process specific information. It is the entire
PSVAR psect. The PSBMAP in the PSB points to all of this area. For
this area, the monitor has indirect pointers in its page table (MMAP)
for its pages beginning at PSSPSA: (which is on a page boundary) for
the length of the process storage area. All of these pointers are to
a single location in the SPT (specifically SPT+NOFN+1). With this
arrangement, the process storage area for the current process can be
changed to the process storage area for another process by only
changing the one location in the SPT.
Defined in: STG
Format
PSSPSA: +-------------------------------------------------------+
CXBPGA: | | / \
| Start of process special pages | 1
| Swapper, Map temporary page | page
\ \ \ /
|-------------------------------------------------------|
CPTPGA: | | / \
| Swapper, Map temporary page | 1
\ \ page
|-------------------------------------------------------| \ /
CPYPGA: | | / \
| Swapper, Map temporary page | 1
| End of process special pages | page
\ \ \ /
PSSPEA: |-------------------------------------------------------|
FPG0A: | | / \
| Fork utility page | 1
\ \ page
|-------------------------------------------------------| \ /
FPG1A: | | / \
| Fork utility page | 1
\ \ page
|-------------------------------------------------------| \ /
FPG2A: | | / \
| Fork utility page | 1
\ \ page
|-------------------------------------------------------| \ /
FPG3A: | | / \
| Fork utility page | 1
\ \ page
|-------------------------------------------------------| \ /
PSIPGA: | | / \
| PSI in progress storage | NPSIPG (2)
\ \ pages
289
MONITOR TABLES
PROCESS STORAGE AREA (Cont.)
|-------------------------------------------------------| \ /
IDXPGA: | | / \
| Index table is mapped here | NIDXPG
| (zero length if sections) | pages
\ \ \ /
|-------------------------------------------------------|
DIRPGA: | | / \
| Directory window |DRMASZ
| (zero length if sections) | pages
\ \ \ /
|-------------------------------------------------------| / \
DDTPXA: | |NDDTPG
| MDDT private segment | pages
\ \ \ /
|-------------------------------------------------------|
UPTPGA: | | / \
| User section 0 page table | 1
| (see USER-PG-MAP-TBL) | page
\ \ \ /
|-------------------------------------------------------|
HWPTA: | Hardware variables | / \
| (see UPT) | 1
PSBPGA: | overlaid with | page
| First page of PSB | |
\ (see PSB) \ \ /
|-------------------------------------------------------| / \
PS2PGA: | | 1
| Second page of PSB | page
\ \ \ /
+-------------------------------------------------------+
290
MONITOR TABLES
PS-PHYKNI
PS is the NI Port Storage block (channel block). There is one channel
block for each NI on the system. The first block is pointed to by
CHNBAS. At this time, only one channel block is allocated, and it is
allocated at location PRTSTG (CHNBAS points to PRTSTG).
Defined in: PHYKNI
Format
+------------------------------------------------------------------------+
PSNXT | Pointer to next channel block |
|------------------------------------------------------------------------|
PSPCB | Port control block base address (virtual) |
|------------------------------------------------------------------------|
PSPBA | Port control block physical base address |
|------------------------------------------------------------------------|
PSPTT | Virtual address of protocol type table |
|------------------------------------------------------------------------|
PSMTT | Virtual address of multicast address table |
|------------------------------------------------------------------------|
PSINT | Interrupt level control buffer |
|------------------------------------------------------------------------|
PSNON | Non-interrupt level control buffer |
|------------------------------------------------------------------------|
PSLPT | Load PTT table buffer address |
|------------------------------------------------------------------------|
PSLMT | Load multicast address table buffer address |
|------------------------------------------------------------------------|
PSWSI | Write station info buffer address |
|------------------------------------------------------------------------|
PSRSI | Read station info buffer address |
|------------------------------------------------------------------------| /\
PSUNK | Pseudo PTT for unknown protocol type queue | PT.LEN
\ \ \/
|------------------------------------------------------------------------|
| | | | | | | | | | |
| PSFLG | |
|------------------------------------------------------------------------|
PSSTA | Line state |
|------------------------------------------------------------------------|
PSHAD | Stored high order station address |
|------------------------------------------------------------------------|
PSLAD | Stored low order station address |
|------------------------------------------------------------------------| /\
PSSAD | Shadowed address | 2
\ \ \/
|------------------------------------------------------------------------|
PSHRA | Stored high order ROM address |
|------------------------------------------------------------------------|
PSLRA | Stored low order ROM address |
291
MONITOR TABLES
PS-PHYKNI (Cont.)
|------------------------------------------------------------------------|
| | | | | PSSVA | | | | | PSRSP | PSCHN | | |
| PSVAR | | PSVBT |Maximum number | | | |
| | | | of entries on | | | |
| | | | the response | | | |
| | | | que | | | |
|------------------------------------------------------------------------|
PSCHK | Check word, contains magic value |
|------------------------------------------------------------------------|
PSTLR | Time of last response |
|------------------------------------------------------------------------|
PSCNO | CONO KNI,(T1) |
|------------------------------------------------------------------------|
PSCNI | CONI KNI,T1 |
|------------------------------------------------------------------------|
PSDTO | DATAO KNI,T1 |
|------------------------------------------------------------------------|
PSDTI | DATAI KNI,T1 |
|------------------------------------------------------------------------|
PSCQA | CONO KNI,CO.BTS+CO.CQA or NOP |
|------------------------------------------------------------------------|
PSMXT | Number of multicasts transmitted |
|------------------------------------------------------------------------|
| PSUMA | PSUMI |
| Major version number | Minor version number |
|------------------------------------------------------------------------|
PSUED | Edit number |
|------------------------------------------------------------------------|
PSTPC | UDT of port crash |
|------------------------------------------------------------------------|
PSLAR | LAR at time of uCode crash |
|------------------------------------------------------------------------|
PSCRL | Left hand CRAM bits at time of crash |
|------------------------------------------------------------------------|
PSCRR | Right hand CRAM bits at time of crash |
|------------------------------------------------------------------------|
PSTLZ | Time at which port counters were zeroed |
|------------------------------------------------------------------------|
PSSHC | Address of shadow counters block |
+------------------------------------------------------------------------+
For field PSFLG(0-17):
PSSLS 0 1=Line state needs reported
PSWUL 1 1=Waiting for uCode to be loaded
PSSTP 2 1=Waiting for port restart
PSBIG 3 1=KNISTP BUGINF reported
PSLSI 4 1=Need to write station information
PSLMC 5 1=Need to do load multicast table command
PSLPP 6 1=Need to do load protocol table command
PSVAD 7 1=PSHAD/LAD is valid
292
MONITOR TABLES
PS-PHYKNI (Cont.)
For field PSVAR(0-3):
PSCRC 0 Allow receipt of frames with CRC errors
PSPMC 1 Station is in Promiscuous multicast mode
PSH40 2 H4000 mode if 1
PSPRM 3 Promiscious mode if 1
For field PSVBT(8-11):
PSVCR 8 PSCRC is valid
PSVPM 9 PSPMC is valid
PSVH4 10 PSH40 is valid
PSVPR 11 PSPRM is valid
Field PSCBA (24-26) CBUS address
0 1 17 18 26 27 35
+------------------------------------------------------------------------+
PSSTA | | | PSSST | PSEXS |
+------------------------------------------------------------------------+
Symbol Bits Meaning
PSRUN 1 Channel is running; should be 1b0
PSSST 18-26 Channel substate
PSEXS 27-35 Channel external state
293
MONITOR TABLES
PS-SCPAR
This is DECnet-36 PSI data passed back from SCLINK on a call to
SCTPSQ, the "Read PSI Queue" routine. The data is passed in T1 and
T2.
Defined in: SCPAR
Format
+------------------------------------------------------------------------+
| | | PSPSM |
| PSFLG | The PSI mask for this link | *
|------------------------------------------------------------------------|
| PSSTS | PSCHN |
| The status half-word | The channel number |
+------------------------------------------------------------------------+
For field PSFLG(0-17):
PSMOR 0 Set if more PSIs queued
294
MONITOR TABLES
PSB
Process Storage Block. Each process has a PSB which holds information
such as: the PC and ACs when not running; forks known to this
process, and accounting, PSI, paging and directory information. It
also holds trapping information and the hardware cells for the User
Process Table (See UPT Table). Page 2 of the PSB houses the push down
list used by the monitor when executing JSYSs (that is, in process
context). The PSBMAP map in the PSB points to all of the per-process
storage area (including the PSB itself). For further information, see
also the Process Storage Area.
Defined in: STG
Format
+-------------------------------------------------------+ / \
UACB: | AC block 1 saved here when JSYS starts | |
| (ACBAS points at last block saved) | NUACB
| | |
\ \ |
|-------------------------------------------------------| \ /
JOBNO: | Job # to Which Fork Belongs |
|-------------------------------------------------------|
JOBBIT: | SCHED Control Bits |
|-------------------------------------------------------|
FNPMAX: | Maximum Number of Pages in Working Set for This Fork |
|-------------------------------------------------------|
JOBCK0: | Variables for Scheduler Time Guarantee |
|-------------------------------------------------------|
JOBCK1: | Variables for Scheduler Time Guarantee |
|-------------------------------------------------------|
RUNT2: | Run Time Fractional Parts of a Millisecond |
|-------------------------------------------------------| / \
FKTAB: | Local Fork Handle to Job Handle Table | NLFKS/2
\ \ |
|-------------------------------------------------------| \ /
FORKN: | Job Fork # at Top Fork | This Fork |
|-------------------------------------------------------|
FKRT: | Fork Run Time |
|-------------------------------------------------------|
PRARGP: | Pointer to Process Arguments |
|-------------------------------------------------------|
MPP: | Monitor Saved Stack Pointer at Last JSYS |
|-------------------------------------------------------|
PRIMRY: | Primary I/O Indirection Pointers |
|-------------------------------------------------------|
SLOWF: | Slow MON Routine Flag |
|-------------------------------------------------------|
INTDF: | Defer Interrupts IF .GE. 0 |
295
MONITOR TABLES
PSB (Cont.)
|-------------------------------------------------------|
INTDFF: | SOS INTDF or JSYS PSISV1 |
|-------------------------------------------------------|
MJRSTF: | XJRSTF FFL or JSYS PSISV0 |
|-------------------------------------------------------|
ACBAS: | Current AC Stack Pointer |
|-------------------------------------------------------|
ITFFL: | Flags on Interrupt to MEXEC |
| (Must be contiguous with ITFPC) |
|-------------------------------------------------------|
ITFPC: | PC on Interrupt to MEXEC |
|-------------------------------------------------------|
TRPID: | IDENT of Page Causing Trap |
|-------------------------------------------------------|
TRPPTR: | Storage Address or Pointer Causing Trap |
|-------------------------------------------------------| / \
UAC: | User ACs (from AC block 1) | 20
\ Saved here when process not running \ \ /
|-------------------------------------------------------| / \
PAC: | Process ACs | |
\ EXEC AC's are saved here when process not running \ 20
|-------------------------------------------------------| \ /
PFL: | Process Flags (Must be contiguous with PPC) |
|-------------------------------------------------------|
PPC: | Process PC |
|-------------------------------------------------------|
NSKED: | No-Schedule Word |
|-------------------------------------------------------|
RSKED: | No-Schedule Trap JFCL/JSR RSKCHK |
|-------------------------------------------------------| / \
| | |
TRAPSK: | Stack Used During Pager Traps | NTSK=
\ \ 133
|-------------------------------------------------------| \ /
TRAPAP: | Page Trap Saved P |
|-------------------------------------------------------|
TRAPC: | Pager Trap Recursion Count |
|-------------------------------------------------------|
UTRSW: | Saved Page Fail Word for User |
|-------------------------------------------------------|
UTRPCT: | Count of Pager Traps for This Process |
|-------------------------------------------------------|
USWPCT: | Count of SWPINW Calls for This Process |
|-------------------------------------------------------|
PTTIM: | Time Spent in Pager Traps |
|-------------------------------------------------------|
LSTXGR: | Time (FKRT) of Last XGC |
|-------------------------------------------------------|
FKTLST: | Lost Time While Clock Turned Off |
296
MONITOR TABLES
PSB (Cont.)
|-------------------------------------------------------|
CRSKED: | In Critical Section if Non-0 |
|-------------------------------------------------------|
SKDFL: | Scheduler Temp (Return Flags) |
|-------------------------------------------------------|
SKDPC: | Scheduler Temp (Return) Must Stay With SKDFL |
|-------------------------------------------------------|
MONBK: | Interrupt to Monitor if non-zero |
|-------------------------------------------------------|
LSTIPC: | PC of Last JSP T2, ITRAP1 |
|-------------------------------------------------------|
PSIPT: | PSI Storage List Pointer |
|-------------------------------------------------------|
PIOLDS: | FKSTAT Prior To PSI if was Waiting |
|-------------------------------------------------------|
LEVCHN: | Level Table | Channel Table Addresses |
|-------------------------------------------------------|
PSISYS: | Non-0 if PSI System Off |
|-------------------------------------------------------|
MONCHN: | Channels Reserved by Monitor |
|-------------------------------------------------------|
PSICHA: | Channel Assigned to TERM Code | / \
\ \ NTERMI/6
|-------------------------------------------------------| \ /
PIMSK: | PSI Request Word Being Passed to PSI Service |
|-------------------------------------------------------|
PSIBW: | Break Waiting Word |
|-------------------------------------------------------|
FORCTC: | Channel Which Caused Forced Fork Termination |
|-------------------------------------------------------|
PSICHM: | Channel Enabled Word |
|-------------------------------------------------------|
SUPCHN: | Channels Reserved by Superior |
|-------------------------------------------------------|
ENSKR: | Scheduler Temp (Return) | / \
\ XPCW block \ 4
|-------------------------------------------------------| \ /
| Hardware Storage (UPT cells) |
UPTTPI=| |
HWPTA+ | (see UPT Table Description) |
420 | |
\ \
|-------------------------------------------------------|
PIOLD2: | FKSTA2 prior to PSI if was waiting |
| |
|-------------------------------------------------------|
PSIBIP: | Break in Progress Word (Levels) |
|-------------------------------------------------------|
ADRBRK: | Address Break Information |
297
MONITOR TABLES
PSB (Cont.)
|-------------------------------------------------------|
ADRBK1: | Address of Instruction Causing Address Break |
|-------------------------------------------------------|
ADRBAD: | Last Break Referenced this Address |
|-------------------------------------------------------|
FRKNOP: | NOP or MDDT breakpoint |
|-------------------------------------------------------|
PIFL: | Saved Flags (Must be with PIPC) |
|-------------------------------------------------------| / \
PIPC: | Saved PC during Initial PI Service | 3
\ (called with XPCW) \ |
|-------------------------------------------------------| \ /
FKTOFF: | Time at Which CPU Clock Turned Off |
|-------------------------------------------------------|
NWSCE: | Number of Entries in WS Cache |
|-------------------------------------------------------|
LSTXGT: | Time (TODCLK) of Last XGC |
|-------------------------------------------------------| / \
UMUUOW: \ Save MUUO Word for User \ 2
|-------------------------------------------------------| \ /
KIMUU1: \ Last UUO Word from User \ / \
|-------------------------------------------------------| 2
PSLEVT: | Address of User's Level Table | \ /
|-------------------------------------------------------|
PSCHNT: | Address of User's Channel Table |
|-------------------------------------------------------|
PSBITS: | Miscellaneous Per Process Bits |
|-------------------------------------------------------|
TRPDSP: | Dispatch for MON ILLEG MEM REF |
|-------------------------------------------------------|
HPSWRN: | Time to flag excessive high priority scheduling |
|-------------------------------------------------------|
DDPFRK: | 1 => this is DDMP fork |
|-------------------------------------------------------|
PSBSAB: | Address of DECnet SAB indirect table |
|-------------------------------------------------------|
SCSTMQ: | Head pointer for SCS% message queue |
|-------------------------------------------------------|
SCSBMQ: | Tail pointer for SCS% message queue |
|-------------------------------------------------------|
SCSTDQ: | Head pointer for SCS% datagram queue |
|-------------------------------------------------------|
SCSBDQ: | Tail pointer for SCS% datagram queue |
|-------------------------------------------------------|
SCSTXQ: | Head pointer for SCS% DMA xfer queue |
|-------------------------------------------------------|
SCSBXQ: | Tail pointer for SCS% DMA xfer queue |
|-------------------------------------------------------|
SCSTEQ: | Head pointer for SCS% event queue |
298
MONITOR TABLES
PSB (Cont.)
|-------------------------------------------------------|
SCSBEQ: | Tail pointer for SCS% event queue |
|-------------------------------------------------------|
SCSPS0: | PSI channels for msg avail,,dg available |
|-------------------------------------------------------|
SCSPS1: | PSI channels for DMA avail,,events |
|-------------------------------------------------------|
SCSTCQ: | Head pointer for CB queue |
|-------------------------------------------------------|
SCSBCQ: | Tail pointer for CB queue |
|-------------------------------------------------------|
SCSTXN: | Head pointer for list of DMA buffer names |
|-------------------------------------------------------|
SCSBXN: | Tail pointer for list of DMA buffer names |
|-------------------------------------------------------|
EVLNTH: | Entry Vector Length |
|-------------------------------------------------------|
EVADDR: | Entry Vector Address |
|-------------------------------------------------------|
PATLEV: | PA1050 Entry Vector Length |
|-------------------------------------------------------|
PATADR: | PA1050 Compatability Entry Vector Address |
|-------------------------------------------------------|
PATU40: | Where to Store C(40), Setup as UMOVEM 1,XX |
|-------------------------------------------------------|
PATUPC: | Where to Store PC, Setup as UMOVEM 1, XX |
|-------------------------------------------------------|
DMSLEV: | RMS Entry Vector Length |
|-------------------------------------------------------|
DMSADR: | RMS Entry Vector Address |
|-------------------------------------------------------|
DMSU40: | Where to Store C(40) on DMS Call |
|-------------------------------------------------------|
DMSUPC: | Where to Store PC of DMS Call |
|-------------------------------------------------------|
| ENQWRD: | Used for Cluster ENQ/DEQ |
| | (0=Not doing Cluster ENQ) |
| |-------------------------------------------------------|
CABMSK: | Capability Mask |
|-------------------------------------------------------|
CAPENB: | Capabilities Enabled |
|-------------------------------------------------------|
SNPPGS: | Count | Page # of First Page Locked|
|-------------------------------------------------------|
SNPLST: | Flags | Link to 1st BP for Fork |
|-------------------------------------------------------|
LSTERR: | Last Error Number |
|-------------------------------------------------------|
PDVS: | Pointer to PDV block |
299
MONITOR TABLES
PSB (Cont.)
|-------------------------------------------------------| / \
ERRSAV: \ Block of Error Parameters \ NERRSV
|-------------------------------------------------------| \ /
| | / \
PSBMAP: | Map for Process Area | |
| | PSBMSZ
| | |
\ \ |
|-------------------------------------------------------| \ /
JTBLK: | FKJTB + forkn for this fork |
|-------------------------------------------------------|
JTLCK: | Lock on JSYS Trap to Monitor (this) fork |
| Lock Protects JTTRW and Allows Only one |
| JSYS Trap Interrupt at a Time to This Monitor |
|-------------------------------------------------------|
JTTRW: | JSYS Trap Word (Set by interrupting fork) |
| Contains trapping instruction |
|-------------------------------------------------------|
JTTFK: | |JTFRK |
| | Forkn of Trapping Fork |
|-------------------------------------------------------|
| |12 17| |
JTMNW: | | JTMCN | JTNMI |
| | Monitor's| Forkn of Mon Interrupted |
| | PSI Chan | (PSI'd) |
|-------------------------------------------------------|
PNSKDC: | NOSKED's Done by DIAG & other Resource Managers |
|-------------------------------------------------------|
ARTHTR: | User-Specified Arithmetic Trap |
|-------------------------------------------------------|
PDOVTR: | Address of user's block for PDL overflow |
|-------------------------------------------------------|
CRTRGN: | Indicates Critical Region |
|-------------------------------------------------------|
STRWRD: | STRFLG | NOSTR |
| Flag for STR Info | # Mount Count Increments |
| | (for KSELF) |
|-------------------------------------------------------|
FKXORA: | Fork IDXORA During Creation of Structure |
|-------------------------------------------------------|
LOKH1: | Index of Highest Lock Held At This Time |
|-------------------------------------------------------|
DRLOC: | Location in Directory During Searches |
|-------------------------------------------------------|
DRINP: | Pointer to Input Name During Lookup |
|-------------------------------------------------------|
DRINL: | Length of Input String |
300
MONITOR TABLES
PSB (Cont.)
|-------------------------------------------------------|
DRMSK: | Mask of 0 Bits in Last Word of String |
|-------------------------------------------------------|
DRSCN: | Pointer to FDB Link During Lookup |
|-------------------------------------------------------|
| DRREC: | Count of Recognized Characters |
| | (Partial File Recognition) |
| |-------------------------------------------------------|
|0 17|18 |19 35|
DROFN: |DRLFDB |DRROF |DIROFN |
| Last FDB Checked by |Release|OFN of Current Mapped |
| FDBCHK | OFN | Directory |
|-------------------------------------------------------|
DRMAP: | Adr of Map Page when SEC2 |
|-------------------------------------------------------|
DIRCAD: | Cache Address of Last MAPDIR |
|-------------------------------------------------------|
IDXMAP: | Adr of IDX Tbl. Pg Map When Extended Addressing |
|-------------------------------------------------------|
|0 17|18 |19 35|
STRINF: |CURUC |IDXFLG |CURSTR |
| Unique Code of |XB File| Str. No. of Cur. |
| Currently Mapped Index| Mapped| Mapped Index File |
| File | | |
|-------------------------------------------------------|
| UPLIST: | Pointer to Portal List for NI% JSYS |
| |-------------------------------------------------------|
\ / / / / / / / / / / / / / / / / / / / / / / / / / / / \
|-------------------------------------------------------| / \
WSCSH: | (Begins at Top of Second PSB Page) | |
| Working Set Cache | WSCHCW
\ \ |
|-------------------------------------------------------| \ /
PIPDB: | PSI Routines stack | / \
| | |
| | NPIPDL
| | |
| | \ /
|-------------------------------------------------------| / \
| | |
PIAC: | Saved user ACs during | 20
| break start | |
|-------------------------------------------------------| \ /
\ / / / / / / / / / / / / / / / / / / / / / / / / / / / \
|-------------------------------------------------------| / \
UPDL: | User PDL for Monitor Calls | |
| UPDL is Defined as the End of this Page NUPDL | NUPDL
\ \ |
+-------------------------------------------------------+ \ /
301
MONITOR TABLES
PT-IPCIDV
The PT structure contains information about each TCP port.
Defined in: IPCIDV
Format
+------------------------------------------------------------------------+
| | | | | PTSTA |
| | | | | Port state |
| | | | | (DOWN,CONNECT,LISTEN,ACCEPT,RUN) | *
+------------------------------------------------------------------------+
Field PTOWN (0-0) Set if this is local port
Field PTHOS (1-1) Set if this port is hostile,
that is, not TOPS-20
302
MONITOR TABLES
PT-PHYKNI
This is the NI Protocol type table. There is a PT block for each
protocol enabled for the NI port -- up to NPTT (16) blocks. A table
of PT blocks is allocated by the monitor at location PTTADR. Channel
block word PSPTT points to the first PT block; that is, it points to
PTTADR.
Defined in: PHYKNI
Format
+------------------------------------------------------------------------+
| | | PTTYP | | |
| | | Protocol type | | | *
|------------------------------------------------------------------------|
PTFRQ | Free queue header address |
|------------------------------------------------------------------------|
PTVIR | Virtual address of free queue header |
+------------------------------------------------------------------------+
Field PTENA (0-0) Protocol is enabled
Field PTFRE (32-32) 1 means entry is free
303
MONITOR TABLES
PT-SCPAR
This is the DECnet-36 Port Table. The port table contains information
describing the state of a user's DECnet connection.
Defined in: SCPAR
Format
+------------------------------------------------------------------------+
| PTCON | PTINT | PTDAT | | | | | | | | |
|User's PSI |User's PSI |User's PSI | | | | | | | | |
| channel | channel | channel | | | | | | | | |
| for | for | for Data/ | | | | | | | | | *
| incoming | interrupt |Disconnect | | | | | | | | |
| CI or CC | messages | | | | | | | | | |
|------------------------------------------------------------------------|
| PTJFN | PTFRK |
| JFN associated with channel | Fork number |
|------------------------------------------------------------------------|
| PTSTS | |
| Link status | |
|------------------------------------------------------------------------|
PTDEV | Storage for DEV during a block |
+------------------------------------------------------------------------+
Field PTTYP (18-18) Open type: 0=Passive 1=Active
Field PTEMI (19-19) EOM has arrived
Field PTPSI (20-20) User has been "PSI"ed for data available
Field PTLWC (21-21) Link was connected indicator
Field PTBLK (22-22) This link is blocked (blocking I/O)
Field PTWAK (23-23) Wake the next process that tries to block
Field PTNRR (24-24) Null record received
304
MONITOR TABLES
PTYSTS
Pseudo Terminal Status Table. This table contains the PTY's status
word.
Defined in: STG
Index: PTY Number
Format
+-------------------------------------------------------+ / \
PTYSTS: | PTY Status Bits | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | NTTPTY
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
305
MONITOR TABLES
QA
This structure contains the data request count (in T2), an inter-layer
parameter passed by Session Control to NSP.
Defined in: D36PAR
Format
| 0 5
| +------------------------------------------------------------------------+
| | QAFLG | | QACNT |
| | | | THE DATA REQUEST COUNT BEING |
| | | | REQUESTED |
| +------------------------------------------------------------------------+
| QAOFF -- Set if the sublink is to be turned off
306
MONITOR TABLES
QB
This is the DECnet queue block.
Defined in: DNADLL
Format
+------------------------------------------------------------------------+
QBNXT | Pointer to next request in queue |
|------------------------------------------------------------------------|
| QBFCN | |
| Function requested | |
|------------------------------------------------------------------------|
QBDA1 | Function specific data |
|------------------------------------------------------------------------|
QBDA2 | Additional data |
|------------------------------------------------------------------------|
QBDLB | Associated data link block address |
+------------------------------------------------------------------------+
307
MONITOR TABLES
Q-BLOCK
| The information for each ENQ request is stored in a Q-BLOCK. Q-BLOCKs
| are doubly linked for each job; the list header is in ENQLST in the
| JSB. Also, Q-BLOCKs are doubly linked on a system wide list for each
| lock block; the list header is in the lock block.
|
| Defined in: ENQPAR
Format
0 17 18 35
+-------------------------------------------------------+
0 | ENQLJQ |
| Back Pointer to Last Q-BLOCK for job |
|-------------------------------------------------------|
1 | ENQNJQ |
| Forward Pointer to Next Q-BLOCK for job |
|-------------------------------------------------------|
2 | ENQLLQ |
| Back Pointer to Last Q-BLOCK |
|-------------------------------------------------------|
3 | ENQNLQ |
| Forward Pointer to Next Q-BLOCK |
|-------------------------------------------------------|
4 | ENQFLG |ENQCHN: |ENQFRK: |
| Flags | PSI | Fork to Interrupt | *
| | Channel | When Request Is Locked |
|-------------------------------------------------------|
5 | ENQNR |ENQID: |
| Number of Resources | Request ID Code |
| Requested from Pool | |
|-------------------------------------------------------|
6 | ENQLRQ |
| Back Pointer to Last Q-BLOCK of Request |
|-------------------------------------------------------|
7 | ENQFQ |
| Forward Pointer to Next Q-BLOCK of Request |
|-------------------------------------------------------|
10 | ENQLBP |
| Pointer to LOCK-BLOCK |
|-------------------------------------------------------|
11 | |ENQGRP |
| | Group Number of |
| Reserved | Sharable Request |
|-------------------------------------------------------|
12 | ENQNST |ENQJFN: |
| Nest Count | JFN of Request |
| | or -1, -2, or -3 |
|-------------------------------------------------------|
13 | ENQMSK |
| Pointer to MASK BLOCK |
+-------------------------------------------------------+
308
MONITOR TABLES
Q-BLOCK (Cont.)
The flags word must occur in the same position in both the Lock-Block
and the Q-Block. The flags word is used to distinguish a Lock-block
from a Q-block.
0 11 12 17 18 35
Word 4 +-------------------------------------------------------+
| ENQFLG Flags | ENQCHN | ENQFRK |
+-------------------------------------------------------+
Symbol Bits Pointer Contents
| EN.SDO=400 3 Scheduling pass needed on
| Lock-Block
| EN.CLL=200 4 Cluster-wide queue block or
| Cluster-wide lock-block
| EN.NOV=100 5 No vote for this lock-block
| Set during caching and for -1
| type locks
EN.LTL=40 6 Long Term Lock
EN.INV=20 7 This Q-Block is invisible
EN.LOK=10 8 The Q-Block has the Lock
Locked.
EN.TXT=4 9 This Block has a Text
String Identifier.
EN.EXC=2 10 Request is Exclusive
EN.LB=1 11 This is the Lock-Block
12-17 Reserved
18-35 ENQLVL Level number of this lock.
309
MONITOR TABLES
QE
QE describes the format of the header for all command, response, and
unknown protocal queue entries. The NI uCode expects this format.
Defined in: PHYKNI
Format
Queue entry
+------------------------------------------------------------------------+
QEFLI | Forward link |
|------------------------------------------------------------------------|
QEBLI | Backward link |
|------------------------------------------------------------------------|
QEVIR | Virtual address of entry |
|------------------------------------------------------------------------|
QEOPC | Queue entry operation code |
+------------------------------------------------------------------------+
310
MONITOR TABLES
QH-D36PAR
Structure QH, queue header, is used by the ENDQUE, DEQUE and RMVQUE
macros for manipulation of DECnet queues.
Defined in: D36PAR
Format
Queue Header
+------------------------------------------------------------------------+
QHBEG | Pointer to first entry in queue |
|------------------------------------------------------------------------|
QHEND | Pointer to last entry in queue |
|------------------------------------------------------------------------|
| QHMAX | QHCNT |
| Max length queue ever got | Current length of queue |
+------------------------------------------------------------------------+
311
MONITOR TABLES
QH-PHYKNI
QH defines the queue header format for the command, response, and
unknown protocol queues. The NI uCode expects the queue header to
have this format.
Defined in: PHYKNI
Format
Queue header definition
+------------------------------------------------------------------------+
QHIWD | Interlock word |
|------------------------------------------------------------------------|
QHFLI | Forward link |
|------------------------------------------------------------------------|
QHBLI | Backward link |
|------------------------------------------------------------------------|
QHLEN | Length of queue entries |
+------------------------------------------------------------------------+
312
MONITOR TABLES
QL
QL is the Queue Link definition used by LAT. All LAT queue entries
are linked together using this structure.
Defined in: LATSRV
Format
Halfword Queue Link Word
+------------------------------------------------------------------------+
QLFWD | Next forward queue element |
|------------------------------------------------------------------------|
QLBWD | Previous backward queue element |
+------------------------------------------------------------------------+
313
MONITOR TABLES
QP
Structure QP, queue pointer, is included to emphasize the fact that
the ENDQUE and DEQUE macros used by DECnet expect the forward pointer
in a block to be a full word - and to simplify the addition of
backward pointers should that become desirable.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
QPNXT | Pointer to next block on queue |
+------------------------------------------------------------------------+
314
MONITOR TABLES
RB
This is the DECnet low level MOP request block.
Defined in: LLMOP
Format
Common header portion of RB
+------------------------------------------------------------------------+
RBFWD | List chain pointer to next RB |
|------------------------------------------------------------------------|
RBSTT | Request State |
|------------------------------------------------------------------------|
| | | | | | | | | | RBICH | |
| RBFLG | | | Interrupt | |
| | | | Channel | | *
| | | | Number (0 | |
| | | | to 35) | |
|------------------------------------------------------------------------|
RBRNO | Receipt Number |
|------------------------------------------------------------------------|
RBCID | Channel Id |
|------------------------------------------------------------------------| /\
RBDST | Destination Address | 2
\ \ \/
|------------------------------------------------------------------------|
RBMSO | MSD Address for Output |
|------------------------------------------------------------------------|
RBMSI | MSD Address for Input |
|------------------------------------------------------------------------|
RBFRK | Fork Number |
|------------------------------------------------------------------------|
RBJOB | Job Number |
+------------------------------------------------------------------------+
For field RBFLG(0-17):
RBFTI 0 Transmit Request Initiated
RBFTC 1 Transmit Request Complete
RBFTF 2 Transmit Request Failed
RBFRC 3 Receive Response Complete
RBFRF 4 Receive Response Failed
RBABT 5 Abort this request
| Field RBAIC (18-18) Assign Interrupt Channel
| Field RBICH (29-34) Interrupt Channel
315
MONITOR TABLES
RC-D36PAR
This is the DECnet router circuit block, which contains all the
"per-circuit" data for Router-36.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
RCNXT | Pointer to next circuit block |
|------------------------------------------------------------------------|
RCLID | Circuit ID |
|------------------------------------------------------------------------|
RCDLB | Data link block address |
|------------------------------------------------------------------------| /\
RCAJQ | Queue of adjacencies belonging to this circuit | QH.LEN
\ \ \/
|------------------------------------------------------------------------|
| | | | | | | | | RCCST | RCDRT | |
| | RCFLG |RCSTA| Circuit cost | Timer before we | | *
| | | | assume DSR role | |
|------------------------------------------------------------------------|
RCTLS | Time last message of any type was sent |
|------------------------------------------------------------------------|
RCTLR | Time last routing message was sent |
|------------------------------------------------------------------------|
RCTLH | Time we sent the last hello (NI only) |
|------------------------------------------------------------------------|
RCTIN | Time we got protocol up from controller |
|------------------------------------------------------------------------|
RCTM3 | Hello message timer |
|------------------------------------------------------------------------|
| RCBSZ | RCRBS |
|Minimum of adjacencies' block sizes|Receive block size for this circuit |
|------------------------------------------------------------------------|
| RCMXR | RCNRO |
| Maximum routers allowed on this | Number of routers online |
| circuit | |
|------------------------------------------------------------------------|
RCDSH | ID of current designated router (NI only) |
|------------------------------------------------------------------------|
| RCDSL | RCPRI |
| ID of current designated router | Priority to be designated router |
| (NI only) | (NI only) |
|------------------------------------------------------------------------| /\
RCJSQ | Queue header for jiffy resend queue | QH.LEN
\ \ \/
|------------------------------------------------------------------------|
RCCMQ | Messages queued |
316
MONITOR TABLES
RC-D36PAR (Cont.)
|------------------------------------------------------------------------|
RCCLC | Local messages |
|------------------------------------------------------------------------|
RCSLZ | (0) Time stamp of when last zeroed. |
|------------------------------------------------------------------------|
RCCAP | (800) Arriving packets received (to NSP) |
|------------------------------------------------------------------------|
RCCDP | (801) Departing packets sent (from NSP) |
|------------------------------------------------------------------------|
RCCAL | (802) Arriving congestion loss (to NSP) |
|------------------------------------------------------------------------|
RCCTR | (810) Transit packets received |
|------------------------------------------------------------------------|
RCCTS | (811) Transit packets sent |
|------------------------------------------------------------------------|
RCCTL | (812) Transit congestion loss |
|------------------------------------------------------------------------|
RCCCD | (820) Circuit down events |
|------------------------------------------------------------------------|
RCAJD | Adjacency down |
|------------------------------------------------------------------------|
RCCIF | (821) Initialization failures |
|------------------------------------------------------------------------|
RCBSX | (xxxx) Adjacency block size exceeded /output |
+------------------------------------------------------------------------+
For field RCFLG(0-5):
RCBCT 0 Broadcast circuit (should be bit 0)
RCSRM 1 Send routing message flag
RCEBU 2 Emergency buffer is in use
RCSHM 3 Send hello message
RCDSR 4 We are the designated router
Field RCSTA (6-8) Circuit state
| Field RCCST (9-20) Circuit Cost
| Field RCDRT (21-29) Time before we assume DSR role
317
MONITOR TABLES
RC-PHYKNI
RC is the structure for the NI read counters block.
Defined in: PHYKNI
Format
+------------------------------------------------------------------------+
RCBR | Bytes received |
|------------------------------------------------------------------------|
RCBX | Bytes transmitted |
|------------------------------------------------------------------------|
RCFR | Frames received |
|------------------------------------------------------------------------|
RCFX | Frames transmitted |
|------------------------------------------------------------------------|
RCMCB | Multicast bytes received |
|------------------------------------------------------------------------|
RCMCF | Multicast frames received |
|------------------------------------------------------------------------|
RCFXD | Frames xmitted, initially deferred |
|------------------------------------------------------------------------|
RCFXS | Frames xmitted, single collision |
|------------------------------------------------------------------------|
RCFXM | Frames xmitted, multiple collisions |
|------------------------------------------------------------------------|
RCXF | Transmit failures |
|------------------------------------------------------------------------|
RCXFM | Transmit failure bit mask | *
|------------------------------------------------------------------------|
RCCDF | Carrier detect check failed |
|------------------------------------------------------------------------|
RCRF | Receive failures |
|------------------------------------------------------------------------|
RCRFM | Receive failure bit mask | *
|------------------------------------------------------------------------|
RCDUN | Discarded unknown |
|------------------------------------------------------------------------|
RCD01 | Discarded position 1 |
|------------------------------------------------------------------------|
RCD02 | Discarded position 2 |
|------------------------------------------------------------------------|
RCD03 | Discarded position 3 |
|------------------------------------------------------------------------|
RCD04 | Discarded position 4 |
|------------------------------------------------------------------------|
RCD05 | Discarded position 5 |
|------------------------------------------------------------------------|
RCD06 | Discarded position 6 |
318
MONITOR TABLES
RC-PHYKNI (Cont.)
|------------------------------------------------------------------------|
RCD07 | Discarded position 7 |
|------------------------------------------------------------------------|
RCD08 | Discarded position 8 |
|------------------------------------------------------------------------|
RCD09 | Discarded position 9 |
|------------------------------------------------------------------------|
RCD10 | Discarded position 10 |
|------------------------------------------------------------------------|
RCD11 | Discarded position 11 |
|------------------------------------------------------------------------|
RCD12 | Discarded position 12 |
|------------------------------------------------------------------------|
RCD13 | Discarded position 13 |
|------------------------------------------------------------------------|
RCD14 | Discarded position 14 |
|------------------------------------------------------------------------|
RCD15 | Discarded position 15 |
|------------------------------------------------------------------------|
RCD16 | Discarded position 16 |
|------------------------------------------------------------------------|
RCUFD | Unrecognized frame destination |
|------------------------------------------------------------------------|
RCDOV | Data overrun |
|------------------------------------------------------------------------|
RCSBU | System buffer unavailable |
|------------------------------------------------------------------------|
RCUBU | User buffer unavailable |
|------------------------------------------------------------------------|
RCRS0 | PLI reg rd par error,,PLI parity error |
|------------------------------------------------------------------------|
RCRS1 | MOVER parity error,,CBUS parity error |
|------------------------------------------------------------------------|
RCRS2 | EBUS parity error,,EBUS queue parity error |
|------------------------------------------------------------------------|
RCRS3 | Channel error,,Spur channel error |
|------------------------------------------------------------------------|
RCRS4 | Spur xmit attn error,,CBUS req timout error |
|------------------------------------------------------------------------|
RCRS5 | EBUS req timeout error,,CSR grnt timeout error |
|------------------------------------------------------------------------|
RCRS6 | Used buff parity error,,xmit buff parity error |
|------------------------------------------------------------------------|
RCRS7 | Reserved for uCode |
|------------------------------------------------------------------------|
RCRS8 | Reserved for uCode |
+------------------------------------------------------------------------+
319
MONITOR TABLES
RC-PHYKNI (Cont.)
0 23 24 25 26 27 28 29 30 31 32 35
+------------------------------------------------------------------------+
RCXFM | | | | | | | | | | |
+------------------------------------------------------------------------+
Symbol Bits Contents
RCLOC 24 Loss of carrier
RCXBP 25 Xmit buffer parity error
RCRFD 26 Remote failure to defer
RCXFL 27 Xmitted frame too long
RCOC 28 Open circuit
RCSC 29 Short circuit
RCCCF 30 Collision detect check failed
RCEXC 31 Excessive collisions
0 26 27 28 29 30 31 35
+------------------------------------------------------------------------+
RCRFM | | | | | | |
+------------------------------------------------------------------------+
Symbol Bits Contents
RCFLE 27 Free list parity error
RCNFB 28 No free buffers
RCFTL 29 Frame too long
RCFER 30 Framing error
RCBCE 31 Block check error
320
MONITOR TABLES
RD
RD represents the format of the NI Receive Datagram command.
Defined in: PHYKNI
Format
20 35
+------------------------------------------------------------------------+
| | RDSIZ |
| | Text length + CRC (bytes) |
|------------------------------------------------------------------------| /\
RDDA1 | Let program align the bytes | 2
\ \ \/
|------------------------------------------------------------------------| /\
RDSA1 | | 2
\ \ \/
| |------------------------------------------------------------------------|
| | |16 RDPTY |31 |
| | | Protocol type | |
| |------------------------------------------------------------------------|
| | |14 RDPBA 35|
| | | Physical address of receive buffer |
|------------------------------------------------------------------------| /\
RDVBA | Virtual address of receive buffer | 2
\ \ \/
|------------------------------------------------------------------------|
RDPID | Portal ID |
|------------------------------------------------------------------------|
RDRID | Request ID |
+------------------------------------------------------------------------+
0 3 4 35
+------------------------------------------------------------------------+
RDDA1 | | High-order destination address |
+------------------------------------------------------------------------+
321
MONITOR TABLES
RD (Cont.)
|
| 0 15 16 31 35
| +------------------------------------------------------------------------+
| RDDA1+1| | Low-order destination address | |
| +------------------------------------------------------------------------+
|
| 0 3 4 35
| +------------------------------------------------------------------------+
| RDSA1 | | High-order source address |
+------------------------------------------------------------------------+
0 15 16 31 35
+------------------------------------------------------------------------+
RDSA1+1| | Low-order source address | |
+------------------------------------------------------------------------+
322
MONITOR TABLES
RES-FREE-SPACE
Resident Free Space Storage.
The resident free space pool is used by TOPS-20 for allocating free
space for data structures such as UDBs, CDBs, KDBs, and SDBs; for
terminal messages and line dynamic data blocks; and for the TIMER JSYS
when it builds a job's run-time limit block. (See JOBRTL table).
Defined in: STG
There are 2 resident free spaces - one in section 0/1 and one in an
extended section. The following data structure describes each of the
free spaces. The locations RES0TB and RESNTB contain the addresses of
the data structures for section 0/1 space and extended space,
respectively.
+-------------------------------------------------------+
.REBAS | Starting address of free space |
|-------------------------------------------------------|
.REEND | Address of last word of free space |
|-------------------------------------------------------|
.RETOT | Total size of free space in blocks |
|-------------------------------------------------------|
.REPR1 | If space left is less than this, allocate P1 only |
|-------------------------------------------------------|
.REGRO | If space left is less than this, grow free space |
|-------------------------------------------------------|
.REBTB | Address of start of bit table |
|-------------------------------------------------------|
.REBTL | Length of bit table (words) |
|-------------------------------------------------------|
.RETFR | Total remaining unallocated blocks |
|-------------------------------------------------------|
.REFFB | Number of block just past end of free space |
|-------------------------------------------------------|
.REPMX | Number pools |
|-------------------------------------------------------|
.REQTA | Address of block containing quota for each pool |
|-------------------------------------------------------|
.REPFR |Address of block containing count of unallocated blocks|
+-------------------------------------------------------+
Offset .REBTB points to a bit table, each bit representing a 4-word
block of free space - bit on means block in use.
323
MONITOR TABLES
RES-FREE-SPACE (Cont.)
Data structure pointed to by offset .REQTA, indexed by pool number.
| +-------------------------------------------------------+
| | Quota for pool (Offset 0 unused) | / \
| |-------------------------------------------------------| |
| " | |
|-------------------------------------------------------| |
| " | |
|-------------------------------------------------------| RESQTL
| " | |
|-------------------------------------------------------| |
| " | |
|-------------------------------------------------------| |
| " | \ /
+-------------------------------------------------------+
Data structure pointed to by offset .REPFR, indexed by pool number.
| +-------------------------------------------------------+
| | Number of free blocks (Offset 0 unused) | / \
| |-------------------------------------------------------| |
| " | |
|-------------------------------------------------------| |
| " | |
|-------------------------------------------------------| RESQTL
| " | |
|-------------------------------------------------------| |
| " | |
|-------------------------------------------------------| |
| " | \ /
+-------------------------------------------------------+
Requests for Resident Free Space are given priority levels where:
.RESP1=0 Highest priority and monitor always tries to assign space.
Page faults are not allowed.
.RESP2=1 Second level priority where monitor does not assign space if
free storage would go below minimum (RESMIN). Page faults
are not allowed.
.RESP3=2 Lowest priority and requests for this level are made in
process context. Page faults are allowed.
324
MONITOR TABLES
RES-FREE-SPACE (Cont.)
Pool types and numbers as indicated by RESUTP are:
.RESGP=1 General resident free space pool
.RESTP=2 Terminal pool
.RESNP=3 Network pool
.RSTMP=4 TIMER pool
.RESUP=5 UNITS pool - used by PHYSIO and DSKALC
325
MONITOR TABLES
RI
This is the DECnet LLMOP request block, which is used to make the Job
0 (CHKR) fork generate a System ID message on the NI.
Defined in: LLMOP
Format
+------------------------------------------------------------------------+
RIQUE | Pointer to next item (Must be first!) |
|------------------------------------------------------------------------|
| RIREC | RICHN |
| Receipt number | Ethernet channel number |
|------------------------------------------------------------------------| /\
RISAD | Source Ethernet address | 2
\ \ \/
+------------------------------------------------------------------------+
326
MONITOR TABLES
RIDSTS (REQUEST-ID STATUS)
RIDSTS, indexed by CI node number, contains information regarding the
status of CI request-id polling. Also, if the remote node is an HSC,
RIDSTS contains information about our attempts to reset/start it.
|
| Defined in: PHYKLP
|
|
| +-------------------------------------------------------+ / \
| RIDSTS |||||||| ||| | IDNOR | IDSAD | * Node 0 |
| |-------------------------------------------------------| |
| \ \ | |
| \ \ | |
| \ \ | MAXNDS+1
| \ \ | |
| \ \ | |
| |-------------------------------------------------------| |
| | | Node 15 |
| +-------------------------------------------------------+ \ /
Bit Name Description
0 IDSNT Last Request-ID sent - 0 = path A, 1 = path B
1 IDPAO Path A Open - 0 = closed, 1 = open
2 IDPBO Path B Open - 0 = closed, 1 = open
3 IDNRA No-Response on Path A - 0 = response, 1 = no-response
4 IDNRB No-Response on Path B - 0 = response, 1 = no-response
5 IDTRY Last Try Status - 0 = first, 1 = second
6 IDWFR Waiting for a response (from our port) to sent
request-id
8 IDRST Reset-remote command has been sent
9 IDSTA Start-remote command to be sent
| 10 IDMAI Remote port is in maintenance mode
12-17 IDNOR Count of consecutive no-responses when we know the
other port is receiving our request-ids
| 20-35 IDSAD Starting address for remote node
327
MONITOR TABLES
RM
This is structure RM, the DECnet router message.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
RMOCP | Output circuit blk ptr |
|------------------------------------------------------------------------|
RMICP | Input circuit blk ptr |
|------------------------------------------------------------------------|
RMOAP | Output adjacency pointer |
|------------------------------------------------------------------------|
RMIAP | Input adjacency pointer |
|------------------------------------------------------------------------|
| | | | | | | | | | | | | | | | |
| | RMFST | | RMFLG | | *
|------------------------------------------------------------------------| /\
RMMSD | Room for RTR message descriptor | MD.LEN
\ \ \/
|------------------------------------------------------------------------| /\
RMHDR | RTR header room (** output only **) | <<RMH.LN+3>/4>
\ \ \/
|------------------------------------------------------------------------|
RMMK1 | First mark |
|------------------------------------------------------------------------|
RMMK2 | Second mark |
+------------------------------------------------------------------------+
For field RMFST(1-8):
RMMZ1 1 Reserved (must be zero)
RMEVL 2 Evolution bit (reserved)
RMMZ2 3 Reserved (must be zero)
RMRTS 4 Being returned to sender
RMRQR 5 Return requested
RMMZ3 6 Reserved (must be zero)
RMMB1 7 Reserved (must be one)
RMCTL 8 Control message (not data)
Field RMCTY (9-11) Control message type
For field RMFLG(12-16):
RMODN 12 Local NSP doesn't want this local message "ODN"ed
RMPH2 13 Message seems to be PHASE II
RMTRY 14 NSP wants Router to "TRYHARD" on the NI
RMTST 15 This is a test message
RMDRM 16 This message should be resent to multicast "All-Endnodes"
328
MONITOR TABLES
RS
RS defines the format of the NI Read Station command.
Defined in: PHYKNI
Format
+------------------------------------------------------------------------+
RSHAD | High order ethernet address |
|------------------------------------------------------------------------|
RSLAD | Low order ethernet address |
|------------------------------------------------------------------------|
| | | | | |
| | RSVAR | *
| | 16 23 24 29 30 35
|------------------------------------------------------------------------|
| | RSUCV | RSNMC | RSNPT |
| | uCode version | Number of | Number of |
| | | multicast | protocol |
| | | addresses | types |
| | | allowed | allowed |
+------------------------------------------------------------------------+
For field RSVAR(32-35):
RSNOP 32 Receive MOP mode (unused)
RSPMC 33 Unrelated multicast mode
RSH40 34 H4000 mode
RSPRM 35 Unrelated mode
329
MONITOR TABLES
RT
RT is the DECnet Receive Table Definition, which is used by the
receive message routines for determining how to process incoming
messages. There is an RT entry in MSGTBL for every type of message
that DECnet-36 expects to receive.
Defined in: LLINKS
Format
+------------------------------------------------------------------------+
| | | | | | | | RTRTN |
| | | | Local addr of routine to process | *
| | | | msg |
+------------------------------------------------------------------------+
For field RTFLG(0-5):
RTFLO 0 Msg type flow controlled, for CHKRSN
RTOTH 1 Set if this is "other" sublink
RTACK 2 Set if msg must include ACKNUM field
RTRSP 3 Set if sender expects a response
Field RTUPT (6-8) The "upto" field, mod 3 bits for DDT
330
MONITOR TABLES
SA
SA is the Session Control Argument Block (SAB) portion of a DECnet
message.
Defined in: D36PAR
Format
Start right after public portion of MB
+------------------------------------------------------------------------+
| | | | | | | | | | | SAERR | *
| SAFLG | SAMFG | | Place to store error return |
|------------------------------------------------------------------------|
| SANAG | SAAFN |
| Number of user arguments supplied | Function code |
|------------------------------------------------------------------------|
| SAAST | SAACH |
| Status variable | Channel or job number |
|------------------------------------------------------------------------|
SAAA1 | Argument one |
|------------------------------------------------------------------------|
SAAA2 | Argument two |
|------------------------------------------------------------------------|
SAAA3 | Argument three |
|------------------------------------------------------------------------|
SASBP | Pointer to string block |
|------------------------------------------------------------------------|
SACBP | Pointer to connect block |
|------------------------------------------------------------------------|
SABCT | Buffer byte count |
|------------------------------------------------------------------------| /\
SABPT | Buffer byte pointer (possibly extended) | 2
\ \ \/
|------------------------------------------------------------------------|
SASJB | Pointer to session control job block |
|------------------------------------------------------------------------|
SASLB | Pointer to session control link block |
|------------------------------------------------------------------------|
SASLT | Indirect table entry this SAB belongs in |
|------------------------------------------------------------------------|
SAHBA | Address of routine to perform HIBER |
|------------------------------------------------------------------------|
SAWKA | Address of routine to perform WAKE |
|------------------------------------------------------------------------|
SAUID | SLB's serial number - for stale detection |
+------------------------------------------------------------------------+
331
MONITOR TABLES
SA (Cont.)
For field SAFLG(0-5):
Symbol Bit Contents
SAWAI 0 Wait if user wants (check NS.WAI)
SAEOM 1 End of message flag
SABOM 2 Beginning of message flag
SAKCB 3 Keep connect block for life of link
SABLK 4 HIBER routine has blocked. Room for future MONUSR flags
For field SAMFG(6-11):
Symbol Bit Contents
SAEVA 6 User buffer in exec virtual addr space
SASAT 7 Data read satisfied Room for future monitor flags
332
MONITOR TABLES
SB-LATSRV
This is the LAT slot block data structure. There is one slot block
for each active slot (terminal) session. Slot blocks are created when
a slot session is started and released when the slot session is
terminated. Slot blocks are pointed to by the Connect Block queue
pointer CBSBQ.
Defined in: LATSRV
| Format
|
| SLOT BLOCK
| +------------------------------------------------------------------------+ /\
| SBLNK | Queue link word (must be first) | 2
| \ \ \/
| |------------------------------------------------------------------------|
| | | | | | | | | | | SBATS | *
| | SBFLG | Maximum attention slot size |
| |------------------------------------------------------------------------|
| | SBMDS | SBSTA |
| | Maximum slot data size | Slot state |
| |------------------------------------------------------------------------|
| | SBRID | SBLID |
| | Remote slot id | Local slot id |
| |------------------------------------------------------------------------|
| | SBXCR | SBRCR |
| | Transmit credits available to us | Receive credits still outstanding |
| |------------------------------------------------------------------------|
| | SBREA | SBSRC |
| | Reason code for stop or reject | Source slot name count |
| |------------------------------------------------------------------------|
| | SBPRC | SBSVC |
| | Port name count | Service name count |
| |------------------------------------------------------------------------|
| SBSRN | Server Name | <<ML.SLN+4>/5>
| |------------------------------------------------------------------------|
| SBPRN | Port Name | <<ML.SLN+4>/5>
| |------------------------------------------------------------------------|
| SBSVN | Service Name | <<ML.SLN+4>/5>
| |------------------------------------------------------------------------|
| SBTDB | Terminal data block |
| |------------------------------------------------------------------------|
| SBCBA | Circuit block address for this slot |
| |------------------------------------------------------------------------|
| SBPRA | Pending request block address |
| +------------------------------------------------------------------------+
333
MONITOR TABLES
| SB-LATSRV (Cont.)
| For field SBFLG(0-17):
| Symbol Bit Contents
| SBSDP 0 Slot data present (must be sign bit)
| SBREJ 1 Send REJECT Slot
| SBSTR 2 Send START Slot
| SBFOU 3 Flush output
| SBOUT 4 Output data available
| SBFCC 5 Flow control change
| SBSTO 6 Send STOP Slot(Must be last)
| SBDLP 7 This slot is a dialup line
334
MONITOR TABLES
SB-PHYKNI
This block exists in all NI Send Datagram commands; it starts after
the SN block. If the datagram is BSD style, SBBBA contains the
physical address of the first BSD. The other fields in this block may
be used by both BSD and non-BSD style sends.
Defined in: PHYKNI
Format
+------------------------------------------------------------------------+
SBBBA | Physical BSD base address |
|------------------------------------------------------------------------|
SBPID | Portal ID |
|------------------------------------------------------------------------|
SBMSD | MSD pointer |
|------------------------------------------------------------------------|
SBRID | Request ID |
|------------------------------------------------------------------------| /\
SBBFA | Buffer address | 2
\ \ \/
|------------------------------------------------------------------------| /\
SBRES | Pad out to 4 word boundary | 2
\ \ \/
+------------------------------------------------------------------------+
335
MONITOR TABLES
SB-SCPAR
The String Block is used by DECnet-36 to store the user's string-block
argument.
Defined in: SCPAR
Format
The Internal String Block
+------------------------------------------------------------------------+
| SBCNT | SBWDS |
| Count of bytes in block |The length in words of string block |
|------------------------------------------------------------------------| /\
SBDAT | SB.MAX 8-bit bytes of data | <<SB.MAX+3>/4>
\ \ \/
+------------------------------------------------------------------------+
336
MONITOR TABLES
SBLIST (SYSTEM BLOCK LIST)
The system block list, indexed by CI node number, contains the
addresses of the system blocks for nodes on the CI. These addresses
point to the device-dependent portion of the KDB for that CI node.
Defined in: SCAMPI
| +-------------------------------------------------------+ / \
| SBLIST | Address of system block for node 0 | |
| |-------------------------------------------------------| |
| | Address of system block for node 1 | |
| |-------------------------------------------------------| |
| | | |
| | . | |
| | . | C%SBLL
| | . | |
| | | |
| | | |
| |-------------------------------------------------------| |
| | Address of system block for node 15 | |
| +-------------------------------------------------------+ \ /
337
MONITOR TABLES
SCA CONNECTION BLOCK
This is the format of the connection block used by SCA to keep the
state of each connection which it is maintaining.
Defined in: SCAPAR
+=======================================================+ /|\
.CBANB=0 | Address of next connect block | |
|-------------------------------------------------------| |
.CBAPB=1 | Address of previous connect block | |
|-------------------------------------------------------| |
.CBSBA=2 | System block address | .CBLEN
|-------------------------------------------------------| |
.CBSBI=3 | CBDNOD | CBEXPR |* |
| Destination node number | Expected response | |
|-------------------------------------------------------| |
.CBSTS=4 | CBBKST | CBCNST |* |
| Connect block state | Connection state | |
|-------------------------------------------------------| |
.CBFLG=5 | Flags |* |
|-------------------------------------------------------| |
.CBSCI=6 | CBSCID | |
| Source connect ID | |
|-------------------------------------------------------| |
.CBDCI=7 | CBDCID | |
| Destination connect ID | |
|-------------------------------------------------------| |
.CBADR=10| SYSAP callback address | |
|-------------------------------------------------------| |
.CBBUF=11| CBIMB | CBIDB | |
| Message buffers to queue | Datagram buffers to queue | |
|-------------------------------------------------------| |
.CBNWQ=12| Next entry on work queue | |
|-------------------------------------------------------| |
.CBSPN=13\ \ |
\ Source process name \ |
\ \ |
|-------------------------------------------------------| |
.CBDPN=17\ \ |
\ Destination process name \ |
\ \ |
|-------------------------------------------------------| |
.CBDTA=23\ \ |
\ User supplied connect data \ |
\ \ |
|-------------------------------------------------------| |
.CBREA=27| CBDDRE | CBSDRE | |
| Dest. disconnect reason | Source disconnect reason | |
338
MONITOR TABLES
SCA CONNECTION BLOCK (Cont.)
|-------------------------------------------------------| |
.CBMCD=30| CBMNSC | CBMNRC | |
| Minimum send credit | Minimum receive credit | |
|-------------------------------------------------------| |
.CBSCD=31| Send credit | |
|-------------------------------------------------------| |
.CBRCD=32| Receive credit | |
|-------------------------------------------------------| |
.CBPRC=33| Pending receive credit | |
|-------------------------------------------------------| |
.CBRQC=34| Requeue credit | |
|-------------------------------------------------------| |
.CBRTC=35| Return credit | |
|-------------------------------------------------------| |
.CBNPO=36| CBNPO | CBRCNT | |
| Packets on port command Q | Reaping postponed count | |
|-------------------------------------------------------| |
.CBDGR=37| Number of datagram buffers on hardware queue | |
|-------------------------------------------------------| |
.CBCDD=40| CBCDD | |
| Number of dropped datagrams | |
|-------------------------------------------------------| |
.CBLCK=41| Interlock word for connect state | |
|-------------------------------------------------------| |
.CBPND=42| Interlock word for credit_request in progress | |
|-------------------------------------------------------| |
.CBJNB=43| CPJNB | |
| Address of next connection block for this fork | |
|-------------------------------------------------------| |
.CBJPB=44| CPJPB | |
| Address of previous connection block for this fork | |
|-------------------------------------------------------| |
.CBMGJ=45| CBMGJ | |
| Number of SCS% message receive buffers queued | |
|-------------------------------------------------------| |
.CBDGJ=46| CBDGJ | |
| Number of SCS% DG buffers queued | |
|-------------------------------------------------------| |
.CBFRK=47| CBFORK | CBJOB | |
| Job number of owner job | Fork number of owner fork | |
|-------------------------------------------------------| |
.CBTMQ=50| Pointer to top of message available queue (for SCS%) | |
|-------------------------------------------------------| |
.CBBMQ=51| CBBMQ | |
| Pointer to bot of message available queue (for SCS%) | |
|-------------------------------------------------------| |
.CBTDQ=52| CBTDQ | |
| Pointer to top of datagram available queue (for SCS%) | |
339
MONITOR TABLES
SCA CONNECTION BLOCK (Cont.)
|-------------------------------------------------------| |
.CBBDQ=53| CBBDQ | |
| Pointer to bot of datagram available queue (for SCS%) | |
|-------------------------------------------------------| |
.CBTXQ=54| CBTXQ | |
| Pointer to top of the DMA xfer complete queue | |
|-------------------------------------------------------| |
.CBBXQ=55| CBBXQ | |
| Pointer to bot of the DMA xfer complete queue | |
|-------------------------------------------------------| |
.CBTEQ=56| CBTEQ | |
| Pointer to top of the event queue | |
|-------------------------------------------------------| |
.CBBEQ=57| CBBEQ | |
| Pointer to bot of the event queue | |
|-------------------------------------------------------| |
.CBTBQ=60| CBTBQ | |
| Pointer to first buffer descriptor block | |
|-------------------------------------------------------| |
.CBBBQ=61| CBBBQ | |
| Pointer to last buffer descriptor block | |
|-------------------------------------------------------| |
.CBPS0=62| CBPMG | CBPDG | |
| PSI channel for messages | PSI channel for datagrams | |
|-------------------------------------------------------| |
.CBPS1=63| CBPDA | CBPEV | |
| PSI channel for DMA | PSI channel for events | |
+=======================================================+ \|/
+-------------------------------------------------------+
.CBSBI=3 | CBDNOD | CBEXPR |
| Destination node number | Expected response |
+-------------------------------------------------------|
Contents of field CBEXPR
Symbol Value Meaning
.STORS 1 Connect response
.STARS 3 Accept response
.STRRS 5 Reject response
.STDRS 7 Disconnect response
.STCRS 11 Credit response
340
MONITOR TABLES
SCA CONNECTION BLOCK (Cont.)
+-------------------------------------------------------+
.CBSTS=4 | CBBKST | CBCNST |
| Connect block state | Connection state |
+-------------------------------------------------------+
Contents of field CBBKST
Symbol Value Meaning
.BSFRE 1 Free
.BSALL 2 Allocate
.BSCNP 3 Connect pending
.BSACP 4 Accept pending
.BSRPN 5 Reject pending
.BSCRP 6 Credit pending
.BSDPN 7 Disconnect pending
Contents of field CBCNST
Symbol Value Meaning
.CSCLO 1 Closed (CLOSED)
.CSLIS 2 Listening (LISTENING)
.CSCSE 3 Connect request was sent (CONNECTSENT)
.CSCRE 4 Connect request was received (CONNECTREC)
.CSCAK 5 Connect response was received (CONNECTACK)
.CSACS 6 Accept request was sent (ACCEPTSENT)
.CSRJS 7 Reject request was sent (REJECTSENT)
.CSOPN 10 Connection is open (OPEN)
.CSDSE 11 Disconnect request was sent (DISCONNECTSENT)
.CSDRE 12 Disconnect request received (DISCONNECTREC)
.CSDAK 13 Disconnect response received (DISCONNECTACK)
.CSDMC 14 Waiting for disconnect response (DISCONNECTMATCH)
341
MONITOR TABLES
SCA CONNECTION BLOCK (Cont.)
0 13 14 35
+-------------------------------------------------------+
.CBFLG=5 | Flags | Reserved |
+-------------------------------------------------------+
Symbol Bits Contents
CBFNNC 0 Needs credit notify
CBFJSY 1 CB is for SCS% conn
CBFABT 2 CB has been aborted
CBFRAP 3 CB is to be reaped
CBFDCL 4 This was DC listener
CBFKIL 5 Fork has been killed
CBFMDC 6 Maint data CB
CBFCVC 7 Virtual circuit was closed
CBFSOB 8 Stuck on buffers
CBFPTC 9 Protocol completed
CBFERR 10 SC.ERR deferred
CBFDIS 11 SC.DIS deferred
CBFDRQ 12 SC.DRQ deferred
CBFSNM 13 SC.SNM deferred
342
MONITOR TABLES
| SCA BUFFER RETURNED TO CLUDGR
|
| This SCA message buffer gives CLUDGR the flexibility to be used for
| other functions, that can be added as they are needed. The buffer has
| the following setup for CLUDGR:
|
| Defined in: CLUPAR
|
|
| SCA buffer returned to CLUDGR (.SSMGR)
|
| +---------------------------------------------------+
| | |
| | Invisible SYSAP header |
| \ \
| +---------------------------------------------------+
| .CLFLI -1 | Word used by CLUDGR to link SCA buffer together |
| +---------------------------------------------------+
.PKFLI +>| |
0 ------+ | SCA and port header area |
\ \
+---------------------------------------------------+
.MHPKL | Packet length |
+---------------------------------------------------+
.MHUDA 0 | Packet # in group | # of packets total |
| (.CLPKT) | (.CLTPK) |
+---------------------------------------------------+
CLDFLG 1 | Flags (described below)| Remote request number |
| (.CLFLG) | (.CLREQ) |
+---------------------------------------------------+
CLDFUN 2 | Function code | Pointer to CLDATA |
| (.CLFUN) | (.CLPTR) |
+---------------------------------------------------+
CLDFRK 3 | Fork number | CI node to reply |
| (.CLFRK) | (.CLNOD) |
+---------------------------------------------------+
CLDUSR 4 | User number who requested this function |
| (.CLUSR) |
+---------------------------------------------------+
| Number of words needed to reassemble SCA buffers |
CLDLEN 5 | (.CLLEN) |
+---------------------------------------------------+
CLDATA 6 \ Function specific data \
\ \
+---------------------------------------------------+
343
MONITOR TABLES
SCA BUFFER RETURNED TO CLUDGR (Cont.)
CLDFLG Flags (Word 1)
Symbol Bits Description
CL%REQ 0 1=local CLUDGR to perform requested function
0=remote request
CL%PRV 1 1=remote user has WHEEL or OPERATOR privileges
enabled
CL%GAL 2 1=remote process is a GALAXY component
CL%ERR 3 1=remote system error for the given function
4-17 Unused
344
MONITOR TABLES
SCA RING BUFFER ENTRY
The SCA ring buffer is present in the monitor only if the monitor has
been built with the flags DEBUG and SCARNG non-zero. These flags are
found in PROLOG.MAC. Also, the bits that are set in the location
RNGSW ultimately controls which events get recorded in the ring
buffer.
The following is the format of an SCA ring buffer entry. The symbols
given are not offsets into the entire ring buffer. They are offsets
into a particular ring buffer entry. The pointer to the current ring
buffer position is stored in RNGADR and the address of the most recent
ring buffer entry is stored in RNGCUR. The top of the ring buffer is
stored in RNGTOP and the bottom address is in RNGBOT. The total
number of entries written is in RNGNUM and the total size of the ring
buffer is in RNGSIZ.
Defined in: SCAPAR
+=======================================================+
.REHED=0 | RNGHED |
| Entry header (-77,,-77) |
|-------------------------------------------------------|
.REECL=1 | RNGEVC | RNGLEN |*
| Event code | Length of entry |
|-------------------------------------------------------|
.REJRL=2 | Jacket routine label |
|-------------------------------------------------------|
.REFRL=3 | Feature routine label |
|-------------------------------------------------------|
.REPCC=4 | PC of caller to feature routine |
|-------------------------------------------------------|
.RETOD=5 | TODCLK |
|-------------------------------------------------------|
.REFEA=6 \ \
\ Feature specific data \
\ \
|-------------------------------------------------------|
| Address of start of this entry |
+=======================================================+
345
MONITOR TABLES
SCA RING BUFFER ENTRY (Cont.)
+-------------------------------------------------------+
.REECL=1 | RNGEVC | RNGLEN |
| Event code | Length of entry |
+-------------------------------------------------------+
Contents of field RNGEVC
Symbol Value Meaning
SYSSCA 1 SYSAP to SCA events
SCASYS 2 SCA to SYSAP
BUFMAN 3 Buffer manipulation
PKTEVT 4 Packet transaction
PITRAN 5 PI transition
PORTQU 6 Port queue manipulation
INTLOK 7 Interlocks
Contents of RNGSW - the flag word which controls event recording
Symbol Bit Meaning
RSYSCA 0 Record SYSAP to SCA events
RSCASY 1 Record SCA to SYSAP events
(callbacks)
RBUFMG 2 Record buffer management events
RPACKT 3 Record packet events (outgoing and
incoming)
RPITRN 4 Record PI transitions
RPRTQU 5 Record port queue events
RINTLK 6 Record interlocks
SCA ring buffer entry--Feature data (SYSSCA)
Below is the format of the feature specific data for the SYSAP to SCA
ring buffer entry.
+=======================================================+
.RESNN=6 | Node number |
|-------------------------------------------------------|
.RESCB=7 | Connect block address |
|-------------------------------------------------------|
.RESST=10 | .CBSTS (Block state,,Connect state) |
|-------------------------------------------------------|
.RESFL=11 | .CBFLG |
|-------------------------------------------------------|
.RESSI=12 | .CBSCI (Source connect ID) |
|-------------------------------------------------------|
.RESDI=13 | .CBDCI (Destination connect ID) |
+=======================================================+
346
MONITOR TABLES
SCA RING BUFFER ENTRY (Cont.)
SCA ring buffer entry--Feature data (SCASYS)
Below is the format of the feature specific data for the SCA to SYSAP
(callback) ring buffer entry.
+=======================================================+
.RECNN=6 | Node number |
|-------------------------------------------------------|
.RECCB=7 | Connect block address |
|-------------------------------------------------------|
.RECCR=10 | Callback reason code |
+=======================================================+
SCA ring buffer entry--Feature data (BUFMAN)
Below is the format of the feature specific data for the buffer
manipulation ring buffer entry. The .REBCT word can contain one of
three values. If the buffer is being returned, .REBCT contains a -1.
If the buffer is being created or allocated and it has been obtained
successfully, .REBCT contains the number of buffers. If the
allocation was not successful, .REBCT contains the number of refused
requests (RMRCNT for messages, RDRCNT for datagrams). Also, on an
unsuccessfull allocation attempt, the .REBAD word contains -1 since no
buffer was allocated. Otherwise, this word always contains a buffer
address, which is either the address of a newly created/allocated
buffer chain or the address of a buffer just returned.
+=======================================================+
.REBCT=6 | # of Buffers, or refused count, or -1 if returned |
|-------------------------------------------------------|
.REBAD=7 | Address of 1st buffer or -1 if can't allocate |
|-------------------------------------------------------|
.REBMC=10 | FQCNT (number of buffers on message free queue) |
|-------------------------------------------------------|
.REBMT=11 | TOPFQ (pointer to top of message free queue) |
|-------------------------------------------------------|
.REBMB=12 | BOTFQ (pointer to bottom of message free queue) |
|-------------------------------------------------------|
.REBDC=13 | DFQCNT (number of buffers on datagram free queue) |
|-------------------------------------------------------|
.REBDT=14 | TOPDFQ (pointer to top of datagram free queue) |
|-------------------------------------------------------|
.REBDB=15 | BOTDFQ (pointer to bottom of datagram free queue) |
+=======================================================+
347
MONITOR TABLES
SCA RING BUFFER ENTRY (Cont.)
SCA ring buffer entry--Feature data (PKTEVT)
Below is the format of the feature-specific data for the packet
transaction ring buffer entry. The flags word contains the PPD flag
bits (F.RTB, F.SPM, F.RSP). F.RSP tells you whether the packet was
locally or remotely generated (F.RSP) and indicates which connect ID
is the one from the local system. The mode of the packet is indicated
by F.SPM.
The message priority is the priority of the packet and ranges from a
high priority of 0 to a low of 3.
+=======================================================+
.REPNN=6 | Node number |
|-------------------------------------------------------|
.REPCB=7 | Connect block address |
|-------------------------------------------------------|
.REPAD=10 | Packet address |
|-------------------------------------------------------|
.REPFL=11 | Flags |
|-------------------------------------------------------|
.REPMP=12 | Message priority | Packet length |
|-------------------------------------------------------|
.REPTY=13 | MH$TYP (credit,,message type) |
|-------------------------------------------------------|
.REPSI=14 | MH$SCI (Source connect ID) |
|-------------------------------------------------------|
.REPDI=15 | MH$DCI (Destination connect ID) |
+=======================================================+
SCA ring buffer entry--Feature data (PITRAN)
Below is the format of the feature specific data for the PI transition
ring buffer entry.
+=======================================================+
.REPIC=6 | CHNCTL |
|-------------------------------------------------------|
.REPIF=7 | PIFLAG |
+=======================================================+
348
MONITOR TABLES
SCA RING BUFFER ENTRY (Cont.)
SCA ring buffer entry--Feature data (PORTQU)
| Below is the format of the feature specific data for the port queue
| manipulation ring buffer entry.
+=======================================================+
.REPQN=6 | Node number |
|-------------------------------------------------------|
.REPQF=7 | Flags | Buffer count |*
|-------------------------------------------------------|
.REPQB=10 | Buffer address |
+=======================================================+
+-------------------------------------------------------+
.REPQF=7 | Flags | Buffer count |
+-------------------------------------------------------+
Contents of flags field
Symbol Bit Meaning
RPQFLK 0 Link to port queue
RPQFMG 1 Message free queue used
SCA ring buffer entry--Feature data (INTLOK)
Below is the format of the feature specific data for the interlock
ring buffer entry.
+=======================================================+
.REICB=6 | Connect block address |
|-------------------------------------------------------|
.REICL=7 | Connect block lock value (.CBLCK) |
|-------------------------------------------------------|
.REIFL=10 | Connect block flags (.CBFLG) |
|-------------------------------------------------------|
.REISL=11 | Count of locked connect blocks on system block |
+=======================================================+
349
MONITOR TABLES
SCDB
The MSCP Server Connection Data Block, which SCDBTB points to.
Defined in: PHYMVR
+-------------------------------------------------------+
.SVCIS=0 | Status of connection | *
|-------------------------------------------------------|
.SVCID=1 | Connect ID |
. |-------------------------------------------------------|
.SVTMO . | Time of last message |
. |-------------------------------------------------------|
.SVTV | Time-out interval set by driver |
|-------------------------------------------------------|
.SVCMD | Head of command queue |
|-------------------------------------------------------|
.SVSCL | Last SCA error location |
|-------------------------------------------------------|
.SVSCE | Last SCA error code |
|-------------------------------------------------------|
.SVCME | Tail of command queue |
+-------------------------------------------------------+
0 5 6 35
+-------------------------------------------------------+
.SVCIS | | |
+-------------------------------------------------------+
Symbol Bits Meaning
SVSTA 0-5 State of the connection, which can be:
SCLIS==0 Null or listening. NOTE: Must be state 0
SCWOK==1 Waiting for OK to send
SCOKS==2 OK to send
SCDIS==3 Shutdown - Disconnect (SCA function .SSRID)
SCNOF==4 Shutdown - Node offline (SCA function .SSNWO)
SCPBC==5 Shutdown - Port error (SCA function .SSPBC)
SCFSD==6 Shutdown - Due to internal error or protocol
MCATN 6 Attention messages enabled
350
MONITOR TABLES
SCDBTB
Table of pointers to MSCP server connection data blocks.
Defined in: STG
+-------------------------------------------------------+
SCDBTB: | Address of server connection data block | /|\
| | |
| | |
| | CFSNUM
| | |
| | |
\ \ \|/
+-------------------------------------------------------+
351
MONITOR TABLES
SCHED-VARIABLES
This storage contains the variables used in the SCHED module. It
contains pointers to the GOLST and to the wait lists. Clock and other
parameters needed are also contained.
Defined in: STG, SCHED, APRSRV
Format
+-------------------------------------------------------+
SKDPDL: | Scheduler local PDL | / \
| | NSKDP
| | | =700
\ \ \ /
+-------------------------------------------------------+
SCKATM: | Alarm time - min. of all SCHED clocks |
+-------------------------------------------------------+
OLDTCK: | Alarm time - old time - used to calculate interval |
+-------------------------------------------------------+
PISC7R: | | / \
| | 4
| | |
\ \ \ /
+-------------------------------------------------------+
PI7AC1: | Temps at PISC7 | / \
| | 2
| | \ /
+-------------------------------------------------------+
ALARMT: | Min. time of forks on clklst |
+-------------------------------------------------------+
SKDTHS: | Time in SCHED so far this pass |
+-------------------------------------------------------+
SKDLST: | Last reading of HP clock |
+-------------------------------------------------------+
SKDLRT: | Runtime of last trip thru scheduling cycle |
| +-------------------------------------------------------+
| NULJBF: | Non-zero if running null job |
+-------------------------------------------------------+
SNPSV1: | Place to save AC while ck'ing PC for SNOOP break pt. |
+-------------------------------------------------------+
LSTPFK: | Last Fork Scheduled |
+-------------------------------------------------------+
LFORKX: | Last Fork Before Background Tasks |
+-------------------------------------------------------+
FORKX: | Index of currently running fork |
+-------------------------------------------------------+
FREJOB: | Pointer to list of free jobs |
+-------------------------------------------------------+
WTLST: | Pointer to waiting fork list |
352
MONITOR TABLES
SCHED-VARIABLES (Cont.)
+-------------------------------------------------------+
WT2LST: | Pointer to waiting forks to be waked by UNBLK1 |
+-------------------------------------------------------+
TTILST: | Pointer to list of forks waiting for TTY input |
+-------------------------------------------------------+
TTOLST: | Pointer to list of TTY output events |
+-------------------------------------------------------+
FRZLST: | Pointer to list waiting for unfreezing |
+-------------------------------------------------------+
TRMLST: | Pointer to list waiting for inferior fork termination |
+-------------------------------------------------------+
CLKLST: | Pointer to list waiting for Clock |
+-------------------------------------------------------+
JTLST: | JSYS traps queue |
+-------------------------------------------------------+
JTLSTL: |Linked list of forks wait on JTLCK to PSI some mon fork|
+-------------------------------------------------------+
GOLST: | Pointer to runnable fork list |
+-------------------------------------------------------+
JB0FLG: | Run JOB 0 request |
+-------------------------------------------------------+
FRECB: | Free core number bits |
+-------------------------------------------------------+
FREFK: | List of free forks |
+-------------------------------------------------------+
SYSIFG: | System has been initialized if not 0 |
+-------------------------------------------------------+
PWRDWN: | Power failure detected if .g. 0, done if .l. 0 |
| +-------------------------------------------------------+
| SPWFFL: | Spurious power fail if -1, restart if 0 |
+-------------------------------------------------------+
RLODPC: | PCs for keep alive reload | / \
| | 4
| | |
\ \ \ /
+-------------------------------------------------------+
FPTABL: | PAGEM dispatch for section numbers | / \
| | | HGHSEC
| | +1
\ \ \ /
+-------------------------------------------------------+
NBPROC: | Number of processes in balance set |
+-------------------------------------------------------+
NBWT: | Number waiting processes in balance set |
+-------------------------------------------------------+
NBSWP: | Number of forks in swap wait |
| +-------------------------------------------------------+
| NHOLDF: | Number of forks in balance set mold |
+-------------------------------------------------------+
MAXBP: | Max number of jobs in balance set |
353
MONITOR TABLES
SCHED-VARIABLES (Cont.)
+-------------------------------------------------------+
BSQNT0: | Value of BSQNT at start of last running |
+-------------------------------------------------------+
SUMNR: | Sum of reserve pages, all processes in memory |
+-------------------------------------------------------+
SUMBNR: | Sum of working sets in balance set |
+-------------------------------------------------------+
NWSEPG: | Number pages WSETs entering memory |
+-------------------------------------------------------+
BALSHC: | Count of pages in balance set because of sharing |
+-------------------------------------------------------+
NXTCNF: | Next fork to check - GCNO |
+-------------------------------------------------------+
RELCB: | Mask of core numbers released but not cleared |
+-------------------------------------------------------+
MAXNR: | Max value of SUMNR |
+-------------------------------------------------------+
MAXHNR: | Max NR of balance set holding forks |
+-------------------------------------------------------+
BSLST: | Pointer to list of balance set holding forks |
+-------------------------------------------------------+
NBSL: | Number of balance set holding forks |
+-------------------------------------------------------+
NEBAL: | Number of processes now entering balance set |
+-------------------------------------------------------+
REMFGS: | Flags set on REMBSJ/REMBSF |
+-------------------------------------------------------+
NPMAX: | Max number of pages in core for one proces |
+-------------------------------------------------------+
SNPMAX: | Small NPMAX for loaded conditions |
+-------------------------------------------------------+
IRJAV: | Nearest integer to RJAV |
+-------------------------------------------------------+
WSMTIM: | Time for next WSMGT |
+-------------------------------------------------------+
RWSOKF: | Flag - OK to do REMWS |
+-------------------------------------------------------+
NWSMEM: | Number WS in mem |
+-------------------------------------------------------+
NHQFK: | Number forks on non-maxq |
+-------------------------------------------------------+
NLQFK: | Number forks on maxq |
+-------------------------------------------------------+
SCHFLG: | Permanent scheduling flags |
+-------------------------------------------------------+
SKEDF1: | Start process by way of CH7 break in 1 |
+-------------------------------------------------------+
SKEDF3: | Process clock counted to 0 |
+-------------------------------------------------------+
SKEDFC: | Force clear of balance set and memory |
354
MONITOR TABLES
SCHED-VARIABLES (Cont.)
+-------------------------------------------------------+
INSKED: | In scheduler if non-zero |
+-------------------------------------------------------+
SSKED: | Last job running was NOSKED |
+-------------------------------------------------------+
SETPAG: | Temp for setting pager at SCDR |
+-------------------------------------------------------+
RSKCHK: | XPCW destination | / \
| | 4
| | |
\ \ \ /
+-------------------------------------------------------+
PSKED: | Page transfer completed and dismiss job |
| +-------------------------------------------------------+
QSKED: | Blocked fork now unblocked if .g. 0 |
+-------------------------------------------------------+
TSKED: | TTU output event if non-zero |
+-------------------------------------------------------+
BSKED: | Fork voluntarily left balance set if .g. 0 |
+-------------------------------------------------------+
NGOJOB: | Number of runnable jobs |
+-------------------------------------------------------+
RJTTIM: | Time at last update to RJTSUM |
+-------------------------------------------------------+
RJATIM: | Time of next RJAV update |
+-------------------------------------------------------+
RJAVS1: | RJTSUM at last RJAV update |
+-------------------------------------------------------+
SKDFST: | Minimize processing for fork scheduling |
+-------------------------------------------------------+
BKIDLF: | Flags in Background, |
| Charging IDLE |
|-------------------------------------------------------|
IDLFUG: | IDLE time (ms) for |
| Any Overflow of SKDIDL |
|-------------------------------------------------------|
GOLPWC: | Number of wait credit boosts after BSWT |
+-------------------------------------------------------+
SKDSHS: | Number of BKGND1 cycles |
| +-------------------------------------------------------+
| SKDSHQ: | Number of bad background decisions |
+-------------------------------------------------------+
SKDBRM: | Number of DISMT removals |
+-------------------------------------------------------+
SKDBSK: | Number of DISMT successes |
+-------------------------------------------------------+
MXQNB0: | Number of forks on MAXQ after NEWST3 |
+-------------------------------------------------------+
MXQGB0: | Subset of MXQNB0 that got special boost |
355
MONITOR TABLES
SCHED-VARIABLES (Cont.)
| +-------------------------------------------------------+ / \
| SKDSHN: | Count of times routine in SKDSHK | |
| | changes NGOJOB | NSHAKL
| \ \ \|/
+-------------------------------------------------------+
RJAVS2: | HQFSUM at last RJAV update |
+-------------------------------------------------------+
RJAVS3: | LQFSUM at last RJAV update |
+-------------------------------------------------------+
BSQNT: | Running job remaining quantum |
+-------------------------------------------------------+
TIM1: | SCHED fast clock |
+-------------------------------------------------------+
TIM2: | Second clock |
+-------------------------------------------------------+
FKT0: | Clock at start of running |
+-------------------------------------------------------+
FKT1: | Time used since SETRT |
+-------------------------------------------------------+
TIM0: | TODCLK atlast C1STAT |
+-------------------------------------------------------+
TODCLK: | Millisecond clock, monotonically increasing |
+-------------------------------------------------------+
TODPWL: | Time of day (in seconds) by power line clock |
+-------------------------------------------------------+
CHKTIM: | Time at which JOB 0 considered overdue |
+-------------------------------------------------------+
CHKDUE: | Count of consecutive overdues for JOB 0 |
+-------------------------------------------------------+
DDPTIM: | Time at which DDMP considered overdue |
+-------------------------------------------------------+
DDPDUE: | Count of consecutive overdues for DDMP |
+-------------------------------------------------------+
SCDRN1: | Run only job N if n .g. -1 |
+-------------------------------------------------------+
356
MONITOR TABLES
SCOUNT
Subsystem Counts. Each entry contains a count of times each subsystem
is invoked. This table is parallel to SNAMES.
Defined in: STG
Format
+-------------------------------------------------------+ / \
SCOUNT: | Count | |
|-------------------------------------------------------| |
| | |
| | |
| | |
| | |
| | NNAMES
| | |
| | |
| | |
| | |
+-------------------------------------------------------+ \ /
357
MONITOR TABLES
SDB
Structure Data Block. This block, one per structure, contains
information about the structure's units, master directory (that is,
Root-Directory), bit map for disk page allocation/deallocation, and
assigned swapping area. It also contains mount and open-file
information. SDBBLO is the name of the storage area reserved for
handling the SDB for the Public Structure (PS). Individual Structure
Data Blocks are pointed to by slots in STRTAB.
Defined in: STG
Format
+-------------------------------------------------------+
| STRNAM |
SDBNAM=0| Structure Name (in SIXBIT) |
|-------------------------------------------------------|
| STRNUM |
SDBNUM=1| Number of Units in Structure |
.|-------------------------------------------------------|
.| STRSIZ |
SDBSIZ .| Size (in sectors) of Each Unit in Structure |
|-------------------------------------------------------|
| STRSTS | STRJB |*
SDBSTS | Status Flags | Initing Fork Number |
|-------------------------------------------------------|
| STRRXB |
SDBRXB | Address of Root Directory Index Block |
|-------------------------------------------------------|
| STRBXB |
SDBBXB | Address of Backup Copy of Root Directory Index Block |
|-------------------------------------------------------|
| STRNSS |
SDBNSS | Number of Swapping Sectors per Unit |
|-------------------------------------------------------|
| STRFSS |
SDBFSS | First Swapping Sector per Unit |
|-------------------------------------------------------|
| STRBTB |
SDBBTB | OFN of Bit Table |
|-------------------------------------------------------|
| STRFC |
SDBFRC | Count of Free Pages on Structure |
|-------------------------------------------------------|
| STRRDO | STRIDX |
SDBIDX | OFN of Root Directory | Handle of Index Table |
|-------------------------------------------------------|
| STRLDN |
SDBLDN | Last Directory Number on This Structure |
358
MONITOR TABLES
SDB (Cont.)
|-------------------------------------------------------|
| STRLCA |
SDBLCA | Last Cylinder Assigned by DSKASN |
|-------------------------------------------------------|
| STRCYL |
SDBCYL | Total Cylinders in Structure |
|-------------------------------------------------------|
| STRB0 |
SDBBT0 | Length of Top Half of Bit Table |
|-------------------------------------------------------|
| STRB1 |
SDBBT1 | Length of Bottom Half of Bit Table |
|-------------------------------------------------------|
| STRTYP |
SDBTYP | Address of DSKSIZ Table for This Type of Disk |
|-------------------------------------------------------|
| STRUC |STRUS| STRLK |
SDBFLK | Unique Code in SDB |Str #| File Lock Count |
|-------------------------------------------------------|
| STRMC | STROF |
SDBCNT | Mount Count | Open File Count |
|-------------------------------------------------------|
| STRMI |
SDBPUC | Pack Unique Code for Media Identification |
|-------------------------------------------------------|
SDBOMF | |
| Original Minimum Free Page Limit |
|-------------------------------------------------------|
SDBMXF | |
| Boundary Above Which SDBMFP=SDBOMF |
|-------------------------------------------------------|
SDBMFP | |
| Min. Free Pgs. below which DSKASA Changes |
| Assignment Algorithm |
|-------------------------------------------------------|
SDBALS | Alias name |
|-------------------------------------------------------|
SDBTMR | STRTMR |
| Structure Offline Timer |
|-------------------------------------------------------| / \
| STRUDB | |
SDBUDB | Flags Pointer to UDB | |
| . | . | MXSTRU
| . | . | |
\ . | . \ |
+-------------------------------------------------------+ \ /
359
MONITOR TABLES
SDB (Cont.)
0 27 35
+-------------------------------------------------------+
SDBSTS | STRSTS | STRJB |
| Structure Status Flags | Initializing Job # |
+-------------------------------------------------------+
Symbol Bits Pointer Content
MS%PS 0 STPS Structure is login structure
MS%DIS 1 STDIS Structure is being dismounted
MS%DOM 2 STDOM Structure is domestic
MS%PPS 3 Protected Permanent Structure
MS%INI 4 Structure is being initialized
MS%LIM 5 Structure is limited
MS%NRS 6 STNRS Structure is not regulated
MS%RWS 7 Read after write for swapping
MS%RWD 8 Read after write for data
MS%ASG 9 Disk assignments are prohibited
(Bit table is bad)
MS%MXB 10 Bit table too large for monitor
address space
MS%CRY 11 Enable password encryption
MS%IDT 12 Enable password invalidation by
date
MS%IUS 13 Enable password invalidation by
use
| MS%DMP 14 Structure is dumpable
| MS%EXC 15 STEXL Exclude structure from
multi-system access
MS%IDX 16 STIDX Index table file OFN has been
set up
MS%CRD 17 STCRD Creating Root Directory on
this Structure
MS%OFS 18 STOFS Structure is offline
MS%BS 19 STBS Structure is boot structure
20-26 Reserved for future expansion
27-35 STRJB Initializing job (only legal
user while structure is being
initialized)
360
MONITOR TABLES
SG-LLINKS
The SG structure is used by DECnet for extracting the SEGNUM field
from an NSP header.
Defined in: LLINKS
Format
The SEGNUM field in an NSP header
| 24 35
+------------------------------------------------------------------------+
| | | | | SGNUM |
| | | | | Segment number | *
+------------------------------------------------------------------------+
Field SGDLY (21-21) ACK DELAY allowed
Field SGMBZ (22-23) Must be zero
361
MONITOR TABLES
SJ
SJ is the DECnet Session Control Job Block -- SJ. There is one
Session Control Job Block for every job with an open logical link on
the system.
Defined in: D36PAR
Format
Session Control Job Block
+------------------------------------------------------------------------+
SJNXT | Next job block in system |
|------------------------------------------------------------------------|
SJCHT | Ptr to SLB table (indexed by channel) |
|------------------------------------------------------------------------|
SJCHC | Count of spaces allocated in SLB table |
|------------------------------------------------------------------------|
SJPSJ | Pointer to system's pointer to the SJB |
|------------------------------------------------------------------------|
| | | | SJFRK | SJCTA | *
| SJFLG |(T20)Fork number |Number of CI timers active for job |
|------------------------------------------------------------------------| /\
SJSLT | Initial SLB table | SLT.LN
\ \ \/
|------------------------------------------------------------------------| /\
SJTXQ | Transaction queue of LLINKS calls | QH.LEN
\ \ \/
|------------------------------------------------------------------------| /\
SJPSQ | Queue of SLBs with PSIs outstanding | QH.LEN
\ \ \/
|------------------------------------------------------------------------|
| SJGOL | SJINQ |
| Input data request goal | Job input quota |
|------------------------------------------------------------------------|
| SJOTQ | SJINU |
| Job output quota |Buffers used toward input quota by |
| | job |
|------------------------------------------------------------------------|
| SJOTU | |
| Buffers used toward output quota | |
| by job | |
|------------------------------------------------------------------------|
SJSAB | SA block pointer |
|------------------------------------------------------------------------|
SJPRT | (T20)Pointer to the port indirect table |
|------------------------------------------------------------------------|
SJMXP | (T20)Number of slots in port table |
+------------------------------------------------------------------------+
For field SJFLG(0-8):
SJBLK 0 (T20)This fork is blocked
SJRST 1 Reset in progress
362
MONITOR TABLES
SL
This is the DECnet Session Control Link Block. It contains all the
per-logical link data.
Defined in: D36PAR
Format
Session control link block
+------------------------------------------------------------------------+
SLASQ | Next SLB on all SLBs queue |
|------------------------------------------------------------------------|
SLNXP | Next SLB with active PSI |
|------------------------------------------------------------------------|
SLJFQ | Next SLB with active jiffy request |
|------------------------------------------------------------------------|
SLSLB | Check pointer to this SLB |
|------------------------------------------------------------------------|
SLSJB | Pointer to job block (SJB) |
|------------------------------------------------------------------------|
SLCHN | Channel number (starts at 1) |
|------------------------------------------------------------------------|
| SLDOB | SLSOB |
| Destination object type | Source object type |
|------------------------------------------------------------------------|
| | | | | | | | | | | | | SLSTA | | | |
| | SLFLG | Session |SLXFL|SLRFL| | *
| | control | | | |
| | state | | | |
|------------------------------------------------------------------------|
| SLGOL | SLINQ |
| Receive data request goal | Input quota for link |
|------------------------------------------------------------------------|
| SLOTQ | SLINU |
| Output quota for link | Input buffers in use |
|------------------------------------------------------------------------|
| SLOTU | SLSST |
| Output buffers in use | Link status word |
|------------------------------------------------------------------------|
| SLPSM | |
| The PSI mask | |
|------------------------------------------------------------------------| /\
SLNSL | "Normal" sublink | SS.LEN
\ \ \/
|------------------------------------------------------------------------| /\
SLOSL | "Other" sublink | SS.LEN
\ \ \/
363
MONITOR TABLES
SL (Cont.)
|------------------------------------------------------------------------|
| SLDRR | SLRSN |
| Normal data requests to resend at | Reason code of disconnect or |
| clock level | reject (16 bits) |
|------------------------------------------------------------------------|
SLPID | NSPpid of port |
|------------------------------------------------------------------------|
| SLDNA | SLSIZ |
| Destination node address | Segment size in bytes |
|------------------------------------------------------------------------|
SLCTM | Connect initiate timer |
|------------------------------------------------------------------------|
SLWKA | Address of wakeup routine |
|------------------------------------------------------------------------|
SLCDM | Ptr to connect/disconnect message |
|------------------------------------------------------------------------|
SLCBP | Pointer to connect block for passive task |
|------------------------------------------------------------------------|
SLOTM | Ptr to partially filled output message |
|------------------------------------------------------------------------|
SLUID | Serial number - for stale detection |
|------------------------------------------------------------------------|
| SLBYS | SLBYR |
| User bytes sent | User bytes received |
|------------------------------------------------------------------------|
| SLPKS | SLPKR |
| Packets sent out | Packets recieved |
+------------------------------------------------------------------------+
For field SLFLG(0-17):
SLCCB 0 Check connect block
SLKCB 1 Keep connect block for life of link
SLPSI 2 PSI pending flag
SLPH2 3 Phase II has no resend capability
SLABO 4 Trying to close after abort & release
SLFSL 5 Free the SLB when done with all processing
SLBSY 6 SLB is busy (cannot be freed)
SLLBC 7 Link is being closed by NSP
SLJFR 8 Jiffy request outstanding
SLEOM 9 Last segment output was end of message
SLPAS 10 Set if this SLB belongs to a passive task
Field SLXFL (24-26) Transmit flow control option
Field SLRFL (27-29) Receive flow control option
364
MONITOR TABLES
SN
SN is the common portion of the NI Send Datagram command block for
both BSD and non-BSD style sends.
Defined in: PHYKNI
Format
| +------------------------------------------------------------------------+
| | |20 SNTXL 35|
| | | Text Length (bytes) |
| |------------------------------------------------------------------------|
| | |16 SNPTY 31| |
| | | Protocol Type | |
| |------------------------------------------------------------------------|
SNFRQ | Free queue header address |
|------------------------------------------------------------------------|
SNHAD | High order address |
|------------------------------------------------------------------------|
SNLAD | Low order |
+------------------------------------------------------------------------+
365
MONITOR TABLES
SNAMES
Subsystem Names. Each entry contains a subsystem program name.
Defined in: STG
Format
+-------------------------------------------------------+ / \
SNAMES: | SIXBIT/Name/ | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NNAMES
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
366
MONITOR TABLES
SNBLKS
Subsystem Blocks. Each entry contains the number of blocks for a
subsystem program. This table is parallel to SNAMES.
Defined in: STG
Format
+-------------------------------------------------------+ / \
SNBLKS: | Number of Blocks | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NNAMES
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
367
MONITOR TABLES
SPFLTS
Subsystem Page Faults. Each entry contains the accumulated number of
page faults of a subsystem program. This is a parallel table to
SNAMES.
Defined in: STG
Format
+-------------------------------------------------------+ / \
SPFLTS: | Accumulated Page Faults | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NNAMES
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
368
MONITOR TABLES
SPT
Special Pages Table. This table is pointed to by the firmware's SPT
Base Register (an AC in an AC Block reserved for hardware/firmware
registers) which is setup by the monitor at system initialization
time.
It is referenced directly by the paging firmware (bits 12-35 only)
when virtual to physical address translation takes place and shared
and indirect pointers are involved.
The first part of the table (of length NOFN) is used to point to index
blocks in memory (or swapping area) for open files and an index into
this part is often referred to as an OFN (Open File Number). The
remainder of the table is used to point to PSBs, JSBs, UPTs, UPTAs,
(User Page Map Tables), and shared file pages.
The ALOCX value in the OFN area is used as an index into the
allocation tables (ALOC1 & ALOC2) to obtain information about the
directory of the open file, (that is, pages left in quota). The share
count in the non - OFN area is indexed for each sharing of the page.
Unused SPT slots are kept in a free list. Location FRESPT contains a
pointer to the head of the free list.
Defined in: STG, PROLOG
Format
+-------------------------------------------------------+
SPT: |0 ALOCX 11|12 STGADR 35| / \ / \
| Index into | Storage Address | | |
| Allocation TBL | (Index Block Page) | | |
|-------------------------------------------------------| |
| . | OFN # |
| . | |
| . | | |
| . | | |
\ \ \ / |
|-------------------------------------------------------|
| SPTSHC 11|12 STGADR 35| SSPT
| Shared Count | Storage Address | (2560)
| | (Shared File Pg/Ovhd Pg/Page of | *
| | another Pg Tbl | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
\ \ |
+-------------------------------------------------------+ \ /
369
MONITOR TABLES
SPT (Cont.)
Storage Address
Symbol Bits Pointer Contents
12-35 STGADR Storage address
(Interpretation follows)
NCORTM 12-17 Non-Core Test Mask yielding
type of storage.
Bits <12-17>=0 =>
Bits <18-35>=Memory Pg Adr.
Bits <12-17> 0 =>
Bits <18-35>=Drum/DSK Adr.
DSKAB 14 Storage address is a disk
address
DSKNB 15 Temporary bit used with
DSKAB to say that disk
address is newly assigned.
DRMAB 16-17 Storage address is a drum
address
DRMOB 17 Used with DRMAB to indicate
that the swapping area has
overflowed to the disk file
system. (Since TOPS-20 cur-
rently uses only the disk file
system for swapping, a drum
storage address always
has bits 16 17 set.)
UAABC 17&35 Temporary bit used by the
monitor's page trap handler
when a copy-on-write page
trap has occurred. If the
page to be copied is a drum
address, it is faulted
in before these bits are used,
avoiding conflict over bit
17. These bits signify
to a lower level routine,
SWPIN, that the page just
gotten from the free list
has no backup address and
that it is to get a copy of
another page.
370
MONITOR TABLES
SPTD
This table is parallel to the OFN area of the SPT table and contains
the count and address of preallocated pages for an OFN. The system
may preallocate pages for an OFN to reduce assignment overhead.
| Defined in: STG, PROLOG
Index: OFN Number
+--------------------------------------------------------+ / \
|0 SPTCT 11|12 Storage Address 35| |
| Preallocation count | of next preallocated page | |
|--------------------------------------------------------| |
| . | NOFN
|---------------------------.----------------------------| |
| . | |
|---------------------------.----------------------------| |
| . | \ /
+--------------------------------------------------------+
371
MONITOR TABLES
SPTH
Special Pages Table Home Information. This table, parallel to the SPT
table is referenced only by the software and is divided into two
parts. The first part, indexed by OFN, is used to point to the home
address of each open file (that is, to its index block) and to hold
status information about each OFN.
The second part is used mainly to show the page's origin. For a
shared file, this is indicated by OFN ,, Page Number , where page
number is within open file, OFN. For PSBs, JSBs, and UPTs, the SPTH
word contains 0 ,, Fork Index. The free slots in this part are on a
list chained through the SPT where the free list pointer resides in
FRESPT.
| Defined in: STG, PROLOG
Format
+-------------------------------------------------------+
SPTH: | Flags |Home (DSK)Address of Index Block |* / \ / \
|-------------------------------------------------------| | |
| . | | |
| . | OFN # |
| . | | |
| . | | |
\ . \ \ / |
|-------------------------------------------------------| |
| OFN | Page Number | SSPT
|-------------------------------------------------------| |
| or | |
|-------------------------------------------------------| |
| 0 | Fork Index | |
|-------------------------------------------------------| |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
0 1 2 3 4 5 6 7 8 9 0 1 2 3 14 35
SPTH +-------------------------------------------------------+
OFN | | | | | | | | | | | | | | Address of Index Block |
entry +-------------------------------------------------------+
372
MONITOR TABLES
SPTH (Cont.)
Symbol Bits Content
| FILUB 0 Unrestricted bit
FILWB 1 File write bit in SPTH and ASOFN
argument
THAWB 2 Thawed bit
FILNB 3 "File new" bit
| SPTLKB 4 OFN is locked against modification
OFNWRB 5 OFN has been modified
OFNBAT 6 Index block contains a bad block
OFNERR 7 Error in file (that is, MPE)
OFNDMO 8 OFN is on a dismounted structure
OFNDUD 9 Suppress DDMP
OFN2XB 10 Second level XB
| OFNLAC 11 Lost access to this cached OFN
If a file is OPENed with thawed access (OF%THW), then both FILWB and
THAWB is set to 1. If OPENed with restricted access, then the THAWB
bit is on and the FILWB is off.
NOTE
A file is opened by searching the OFN part of SPTH for
the index block address. If the address is found and
the write and thawed bits are legal, it is a shared
opening and the same index is used. If the address is
not found, a new entry is made from one of the free
(-1) slots in SPTH.
373
MONITOR TABLES
SPTO
Special Pages Table O. This table is parallel to the OFN area of the
SPT table and contains the structure number and open file share count
for each open file. The OFN share count is indexed for each opening
of the file and for each shared page within the open file.
| Defined in: STG, PROLOG
Index: OFN Number
Format
+-------------------------------------------------------+ / \
| OFNSHC | STRX |* |
SPTO: | OFN Share Count | Structure # | |
|-------------------------------------------------------| |
| . | |
| . |
| . | NOFN
| . |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
Symbol Bits Pointer Content
OFNSCH 0-17 Share count for an OFN
17 OFSHR One unit of OFN share entry
STRX 18-35 STX Structure index (number)
374
MONITOR TABLES
SPTO2
Special Pages Table O2. This table is parallel to the OFN area of the
SPT table and contains various state information about the OFN. It is
used by CFS to maintain the page state.
| Defined in: STG, PROLOG
Index: OFN number
+--------------------------------------------------+ / \
| | OFOPC | | |
SPT02: | Count of normal opens | CFS flags |* |
|--------------------------------------------------| |
| | |
|------------------------.-------------------------| NOFN
| . |
|--------------------------------------------------| |
| | | |
|--------------------------------------------------| \ /
+--------------------------------------------------+
| Count of normal opens | CFS flags |
+--------------------------------------------------+
Contents of CFS flags
Symbol Bits Meaning
SPTFO 18 Force out in progress
SPTCDO 19 XB checksum already verifed
SPTSFD 20 XB needs checksum done on next swap in
SPTDSF 21 Need DDMP to verify the XB
SPTFR 22-23 Signal from CFS to do force-out
SPTSR 22 Sub-field of above (set = memory flush)
SPTNA 24 If set, don't preallocate pages for OFN
SPTMR 25 Preallocation meter bit
| OFNCSH 26 OFN is cached
| OFNMGB 27 Garbage collection pass 1 done
SPTST 34-35 OFN state (for CFS)
.SPSRD==:1 ;Read-only
.SPSWR==:2 ;Read/write
375
MONITOR TABLES
SPTO3
Special Pages Table 3. This table is parallel to the OFN area of the
SPT table and is available only under the DEBUG conditional. It
contains the number and the PC the system fork who last locked the
OFN.
Defined in: STG
Index: OFN number
Format
+-------------------------------------------------------+ / \
| SPTO3: | System Fork # | PC of fork | |
|-------------------------------------------------------| |
| . | |
| . | NOFN
| . | |
| . | |
| . | |
+-------------------------------------------------------+ \ /
376
MONITOR TABLES
SPTO4
This table contains information about OFNs. It is primarily used to
speed access to long files.
Defined in: STG
| +-----------------------------------------------------------------------+ / \
| | OFN which "own" this OFN,,file section number (for a second level OFN)| |
| | or | NOFN
| | 0 (for a short file or "super" OFN of a long file) | |
| | or | |
| | -1 (if the OFN is unassigned) | |
| +-----------------------------------------------------------------------+ |
| | . | |
| | . | |
| | . | |
| | . | |
| | . | |
| | . | |
| | . | |
| +-----------------------------------------------------------------------+ \ /
377
MONITOR TABLES
SS
This is the DECnet Session Control sublink block. There are two of
these in the SL block, one for the normal sublink and one for the
other sublink.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
| | | SSXDO | SSRDO |
| SSFLG |Sublink transmit | Sublink receive | *
| |DRQS outstanding |DRQS outstanding |
|------------------------------------------------------------------------| /\
SSINQ | Sublink input queue | QH.LEN
\ \ \/
+------------------------------------------------------------------------+
For field SSFLG(0-17):
SSOTH 0 Indicates this is the "other" sub-link
378
MONITOR TABLES
SSIZE
Subsystem Working Set Size. Each entry contains the working set size
integral for a subsystem program. This is a parallel table to SNAMES.
Defined in: STG
Format
+-------------------------------------------------------+ / \
SSIZE: | Working Set Size Integral | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NNAMES
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
379
MONITOR TABLES
ST
This is the SAB indirect table pointed to by PSBSAB.
Defined in: SCPAR
Format
+------------------------------------------------------------------------+
STNP | Normal priority |
|------------------------------------------------------------------------|
STP1 | PSI level 1 |
|------------------------------------------------------------------------|
STP2 | |
|------------------------------------------------------------------------|
STP3 | |
+------------------------------------------------------------------------+
380
MONITOR TABLES
STIMES
Subsystem Runtimes. Each entry contains the accumulated runtime of a
subsystem program. This is a parallel table to SNAMES.
Defined in: STG
Format
+-------------------------------------------------------+ / \
STIMES: | Accumulated Runtime | |
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . |
| . | NNAMES
| . |
| . | |
| . | |
| . | |
| . | |
\ . \ |
+-------------------------------------------------------+ \ /
381
MONITOR TABLES
STRTAB
Structure Data Block Table. This table contains pointers to each
structure data block in the system.
Defined in: STG
Index: Structure Number
Format
+-------------------------------------------------------+
STRTAB: | Pointer to SDB | / \
|-------------------------------------------------------| |
| . | |
| . | |
| . | |
| . | |
| . |
| . | STRN =
| | . | 64
| . |
| . | |
| . | |
| . | |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
382
MONITOR TABLES
SV-LLINKS
The SV structure is expected to be used by DECnet code to pull apart
the services field from a CI or CC message held in a register.
Defined in: LLINKS
Format
The Services Field of a CI or CC msg
| 0 31
+------------------------------------------------------------------------+
| SVFL1 | | |
| Filler 1, check for all zeroes | | | *
+------------------------------------------------------------------------+
Field SVOPT (32-33) The flow control option, see FCM.xx
Field SVFL2 (34-35) Filler 2, check for being "01"
SV$FL2=1 Number that SVFL2 must be
383
MONITOR TABLES
SV-LLMOP
This is the DECnet LLMOP generic server variable block. The
definition, structure and use of this block are shared between the
Loopback Protocol Server and the Remote Console Server.
Defined in: LLMOP
Format
Server Variable Block
+------------------------------------------------------------------------+
SVIFG | Initialization Flag |
|------------------------------------------------------------------------|
SVDLS | Data Link State |
|------------------------------------------------------------------------|
SVSTT | Server State |
|------------------------------------------------------------------------|
SVAST | Server Assistant State |
|------------------------------------------------------------------------|
| | | 13 17 19 35|
| |S| | SVICH | | SVNXR |
| |V| | Interrupt | | Next Receipt Number |
| |A| | Channel | | | *
| |I| | Number (0 | | |
| |C| | to 35) | | |
|------------------------------------------------------------------------|
SVQLK | Queue Lock |
|------------------------------------------------------------------------|
SVRQH | Request Queue Head |
|------------------------------------------------------------------------|
SVRQT | Request Queue Tail |
|------------------------------------------------------------------------|
SVRCT | Total Receive Count |
|------------------------------------------------------------------------|
SVTIC | Total Invalid Receive Count |
|------------------------------------------------------------------------|
SVUSF | Total of unsupported functions received |
|------------------------------------------------------------------------|
SVSRC | Server Receive Count |
|------------------------------------------------------------------------|
SVSIC | Server Invalid Receive Count |
|------------------------------------------------------------------------|
SVRRC | Requestor Receive Count |
|------------------------------------------------------------------------|
SVRIC | Requestor Invalid Receive Count |
|------------------------------------------------------------------------|
SVTTI | Total Transmit Initiated Count |
|------------------------------------------------------------------------|
SVTCT | Total Transmit Complete Count |
384
MONITOR TABLES
SV-LLMOP (Cont.)
|------------------------------------------------------------------------|
SVTTF | Total Transmit Failure Count |
|------------------------------------------------------------------------|
SVSTC | Server Transmit Count |
|------------------------------------------------------------------------|
SVRTC | Requestor Transmit Count |
|------------------------------------------------------------------------|
SVBPC | Buffer Post Count |
|------------------------------------------------------------------------|
SVLBC | Lost Buffer Count |
|------------------------------------------------------------------------|
SVIBN | Initial Buffer Number |
|------------------------------------------------------------------------| /\
SVMCA | Multicast Address | 2
\ \ \/
|------------------------------------------------------------------------|
SVCJN | Configurator Job Number |
|------------------------------------------------------------------------|
SVCFN | Configurator Fork Number |
|------------------------------------------------------------------------| /\
SVIXB | DLL Interface Block | UN.LEN
\ \ \/
|------------------------------------------------------------------------| /\
SVCCB | Start of Channel Counters Block | CC.LEN
\ \ \/
+------------------------------------------------------------------------+
Field SVAIC (0-0) Assign Interrupt Channel
Field SVICH (13-17) Interrupt Channel Number
Field SVNXR (19-35) Next Receipt Number
385
MONITOR TABLES
SWAP-FREE-SPACE (NON-EXTENDED)
Swappable Free Space Pool Format. This table describes the header
area that is used in the assignment and deassignment of swappable free
space (by ASGFRE) and the usage of this space when assigned.
Defined in: STG
Format
+-------------------------------------------------------+
SWPFRE: | Adr of 1st Free Block | Unused | / \
|-------------------------------------------------------| |
| Lock on Free Space | |
|-------------------------------------------------------| |
| Space Counter | |
|-------------------------------------------------------|
| Most Common Block Size | 7
|-------------------------------------------------------|
| Max Top of Free Area | Bottom of Free Area | |
|-------------------------------------------------------| |
| Temporary Work Space | |
|-------------------------------------------------------| |
| Temporary Work Space | \ /
|-------------------------------------------------------|
SWFREE: | Free Space Pool | / \
| | |
| Space for the Assignment of: | |
| System Wide Logical Name List and | SWFREL
| Definitions Blocks |
| USAGE JSYS Blocks | |
| Checkpoint Records | |
\ \ \ /
+-------------------------------------------------------+
386
MONITOR TABLES
SYNMTB
System Logical Name Table: This table contains pointers to the
initial ASCIZ strings for the system logical names.
Defined in: STG
Format
+-------------------------------------------------------------+
SYNMTB:| XWD[ASCIZ/SYS/],[ASCIZ/ <SUBSYS>/] |
|-------------------------------------------------------------|
| XWD[ASCIZ/HLP/],[ASCIZ/SYS:/] |
|-------------------------------------------------------------|
| XWD[ASCIZ/SYSTEM/],[ASCIZ/ <NEW-SYSTEM, <SYSTEM>/]|
|-------------------------------------------------------------|
| XWD[ASCIZ/EDITOR/],[ASCIZ/SYS:EDIT.EXE/] |
|-------------------------------------------------------------|
| XWD[ASCIZ/ACCOUNT],[ASCIZ/ /ACCOUNTS/] |
|-------------------------------------------------------------|
| XWD[ASCIZ/DEFAULT-EXEC/],[ASCIZ/SYSTEM:EXEC.EXE/] |
|-------------------------------------------------------------|
| XWD[ASCIZ/PS/],[ASCIZ/ :/] |
|-------------------------------------------------------------|
| XWD[ASCIZ/POBOX/],[ASCIZ/ :/] |
| |-------------------------------------------------------------|
| | XWD[ASCIZ/BS/],[ASCIZ/ :/] |
| |-------------------------------------------------------------|
| | XWD[ASCIZ/SPOOL/],[ASCIZ/ :<SPOOL>/] |
| |-------------------------------------------------------------|
| | XWD[ASCIZ/SERR/],[ASCIZ/ :<SYSTEM-ERROR>/] |
| |-------------------------------------------------------------|
| | XWD[ASCIZ/TGHA-DATA/],[ASCIZ/ :<SYSTEM>/] |
+-------------------------------------------------------------+
When six spaces precede the colon, SLNINI inserts the name
of the primary structure into that location.
387
MONITOR TABLES
SYS-STARTUP-VECTORS
System Startup Transfer Vectors. This table, in resident locations
140-147, contains the startup vectors for the monitor as well as
vectors to enter EDDT.
Defined in: STG
Format
SVECT=140
+-------------------------------------------------------+
EVDDT: | JRST DDTZ (EDDT) |
|-------------------------------------------------------|
| JRST SYSDDT (Reset and go to EDDT) |
|-------------------------------------------------------|
EVDDT2: | JRST DDTZ (Copy of EDDT in case |
| other clobbered) |
|-------------------------------------------------------|
EVSLOD: | JRST SYSLOD (Initialize disk file |
| system) |
|-------------------------------------------------------|
EVVSM: | JRST SYSVSM (Verify swappable |
| monitor on startup) |
|-------------------------------------------------------|
EVRST: | JRST SYSRST (Restart) |
|-------------------------------------------------------|
EVLDGO: | JRST SYSGO (Reload and start) |
|-------------------------------------------------------|
EVGO: | JRST SYSGO1 (Start) |
+-------------------------------------------------------+
388
MONITOR TABLES
SYSERR-STORAGE-AREA
SYSERR STORAGE AREA. In and out pointers into the buffer area are
maintained for JOB0 as well as pointers to the free and released
SYSERR blocks.
Defined in: STG, SERCOD
+-------------------------------------------------------+
SEBQIN: | Job 0 queue In-pointer |
|-------------------------------------------------------|
SEBJFN: | JFN for SYSERR.LOG File |
|-------------------------------------------------------|
SECHKF: | Flag to wake Job 0 SYSERR FORK |
|-------------------------------------------------------|
SEIETM: | Time after which failing to OPEN |
| SYSERR LOG File can try again |
|-------------------------------------------------------|
SERCNT: | Count of queued SYSERR blocks |
|-------------------------------------------------------|
SPRFLG: | -1 if SERCNT needs initializing |
+-------------------------------------------------------+
Although the In-pointer is in this storage area the corresponding
Out-pointer in SEBQUO is in a fixed place in lower core (that is,
location 24), so JOB 0 can queue up a BUGHLT block after a crash. One
can examine the last SYSERR block by adding to the right half of the
contents of SEBQUO, SEBDAT plus offset into SYSERR block.
| +-------------------------------------------------------+
| ALCLST: | Count of lost section 0 all locations |
| |-------------------------------------------------------|
| BUGLST: | Count of lost bug entries |
| |-------------------------------------------------------|
| SYELST | Count of lost syserr entries |
| +-------------------------------------------------------+
389
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
SYSERR BUFFER BLOCKS
SYSERR BLOCK FORMAT
+-------------------------------------------------------+
| SEBCDR |
0 | Pointer to Next Block |
|-------------------------------------------------------|
| SEBFN |
1 | Function to Call in Job 0 |
|-------------------------------------------------------|
| |SEBCOD|6 SEBSOF 17| |24 SEBSIZ |*
| | Code | Offset to Free | | Blk Size with |
| | String Space | | Header |
|-------------------------------------------------------|
SEBHED=3 | SEHCOD | | SEHLEN |*
| Event Code | |Block Length |
|-------------------------------------------------------|
| SEHTAD |
4 | Date and Time |
|-------------------------------------------------------|
| SEHUTM |
5 | Uptime |
|-------------------------------------------------------|
| SEHSER |
6 | APRID Word | *
| (Processor Serial Number) |
|-------------------------------------------------------|
7 | SEHCNT |
| Crash Spanning Counter |
|-------------------------------------------------------|
SEBDAT=10 | |
| Body of Error Block |
\ (Dependent on Event Type \
\ See Below) \
| |
| |
| |
| |
+-------------------------------------------------------+
390
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
0 2 3 4 5 6 17 18 23 24 35
Word +-------------------------------------------------------+
| |SEBCOD|6 SEBSOF 17| | SEBSIZ |
2 | | Code | Offset to Free | | Blk Size with |
| | | String Space | | Header |
+-------------------------------------------------------+
Bits Pointer Meaning
3-5 SEBCOD State Code
SBCFRE=0 on Free List
SBCREL=1 Released
SBCACT=2 Active
6-17 SEBSOF Offset to Free String Space
24-35 SEBSIZ Block Size Including Header
391
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
0 8 27 35
Word +-------------------------------------------------------+
2 | SEHCOD | | SEHLEN |
| Event Code | |Block Length |
+-------------------------------------------------------+
Bits Pointer Meaning
0-8 SEHCOD Event Code (that is, Block Type)
SEC%RL=101 System Reload
SEC%BG=102 BUGHLT/BUGCHK/BUGINF
SEC%MB=111 Massbus Device Error
SEC%CS=115 Configuration Status
Change (MTCON)
SEC%FE=130 Front End Error
SEC%11=131 F.E. Reload Entry
(Gives -11 Reboot Info.)
SEC%HS=133 Halt for KS10
SEC%PT=160 Processor Parity Trap
SEC%PI=161 Processor Parity Intrp.
SEC%P1=162 Parity for Extensible
Controllers
SB%BLK=163 Status Block
SEC%6S=232 DN64 event
SEC%KS=241 KLIPA Statistics Event
SEC%CI=242 CI Disk/Tape Endpacket
SEC%EL=243 MSCP Error Log Event
SEC%KP=244 KLIPA Error Event
SEC%KE=246 KLIPA Error-Log Packet
27-35 SEHLEN Block Length (Including Header)
RL%LEN - System Reload Block Length
BG%LEN - BUGHLT/CHK/INF Block Length
MB%LEN - Massbus Dev. Err Blk Length
CS%SIZ - Change Blk Length
FE%LEN - F.E. Errors Blk Length
R1%LEN - F.E. Reload Entry Blk Length
HS%LEN - KS10 Block Length
PT%LEN - Proc. Parity Trap Blk Length
PI%LEN - Proc. Parity Interrupt Blk Lgh
PI%LN2 - Extensible Controllers Blk Lgh
SB%MAX - Maximum Status Block Length
CI%LEN - CI Endpacket Blk Length
EL%LEN - MSCP Error Log Block Length
KP%LEN - KLIPA Error Block Length
KS%LEN - KLIPA Statistics Block Length
KE%LEN - KLIPA Error Log Block Length
Word 6 to End (Body of Error Block - Dependent on Event Type)
392
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
Event Type 101
System Reloaded Error Block Data
+-----------------------------------------------------+
RL%SVN=0 | ASCII Byte Pointer to System Name |
|-----------------------------------------------------|
RL%STD=1 | Time of System Build (Univ. Format) |
|-----------------------------------------------------|
RL%VER=2 | System Version Number |
|-----------------------------------------------------|
RL%SER=3 | APR Serial Number |
|-----------------------------------------------------|
RL%OPR=4 | ASCII Byte Pointer to "Why Reload" |
|-----------------------------------------------------|
RL%HLT=5 | BUGHLT Address (if Auto-Reloaded) |
|-----------------------------------------------------|
RL%FLG=6 | Flags |
|-----------------------------------------------------| / \
RL%SIZ=7 | Monitor Name (Text) | |
| | NSVNT=
| | 26.
| | |
|-----------------------------------------------------| \ /
| | / \
| "Why Reload" Answer String (Text) | |
| | RLBSZ=
| | 16.
+-----------------------------------------------------+ \ /
RL%LEN=61
393
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
Event type 102
BUGHLT/CHK/INF Error Block Data
+-----------------------------------------------------+
BG%SVN=0 | System Name (ASCIZ) |
|-----------------------------------------------------|
BG%SER=1 | APR Serial Number |
|-----------------------------------------------------|
BG%VER=2 | Monitor Version |
|-----------------------------------------------------|
BG%SDT=3 | TAD of Monitor Build |
|-----------------------------------------------------|
| Type (1,2 or 3) of BUG Call: |
BG%FLG=4 | (BG%CHK=1;BG%INF=2;BG%HLT=3) |
|-----------------------------------------------------|
BG%ADR=5 | Address of HLT/CHK |
|-----------------------------------------------------|
BG%JOB=6 | FORKX | Job Number |
|-----------------------------------------------------|
BG%USR=7 | User Number |
|-----------------------------------------------------|
BG%PNM=10 | Program Name (SIXBIT) |
|-----------------------------------------------------|
BG%MSG=11 | Message (ASCIZ) |
|-----------------------------------------------------| / \
BG%ACS=12 | ACS | |
\ \ 16.
|-----------------------------------------------------| \ /
BG%PIS=32 | PI Status |
|-----------------------------------------------------|
BG%RCT=33 | Register Count |
|-----------------------------------------------------|
BG%REG=34 | Registers (Maximum of 4) |
|-----------------------------------------------------|
BG%NAM=40 | SIXBIT Name of Check |
|-----------------------------------------------------|
BG%DAT=41 | Time and Date of BUGHLT/BUGCHK |
|-----------------------------------------------------|
BG%CNT=42 | Number of BUG Checks Since Startup |
|-----------------------------------------------------|
BG%APS=43 | APR Flags (CONI APR,) |
|-----------------------------------------------------|
BG%PGS=44 | Pager Flags (CONI PAG,) |
|-----------------------------------------------------|
BG%PGD=45 | Pager Data (DATAI PAG,) |
394
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
|-----------------------------------------------------|
BG%ERG=46 | Error Register |
|-----------------------------------------------------| / \
BG%SIZ=47 | | |
| String Area | |
| | 34.
| | |
\ \ |
BG%LEN=111+-----------------------------------------------------+ \ /
Event Type 111
MASS BUS DEV Error Data Block
+-------------------------------------------------------+
MB%NAM=0 | Device Name (if available) |
|-------------------------------------------------------|
MB%VID=1 | Volume ID (SIXBIT) |
|-------------------------------------------------------|
MB%TYP=2 | Channel,,Device Type - See PHYPAR |
|-------------------------------------------------------|
MB%LOC=3 | Location of Error - Sector or File,,Record |
|-------------------------------------------------------|
MB%FES=4 | Final Error State - Device Dependant |
|-------------------------------------------------------|
MB%CNI=5 | CONI Initial |
|-------------------------------------------------------|
MB%CIF=6 | CONI Final |
|-------------------------------------------------------|
MB%SEK=7 | Number of Seeks |
|-------------------------------------------------------|
MB%RED=10 | Number of Blocks/Frames Read |
|-------------------------------------------------------|
MB%WRT=11 | Number of Blocks/Frames Written |
|-------------------------------------------------------|
MB%FIL=12 | Filename (Pointer) |
|-------------------------------------------------------|
MB%USR=13 | User Making Request (directory number) |
|-------------------------------------------------------|
MB%PGM=14 | Program Running |
|-------------------------------------------------------|
MB%D1I=15 | DATAI PTCR Initial |
|-------------------------------------------------------|
MB%D1F=16 | DATAI PTCR Final |
|-------------------------------------------------------|
MB%D2I=17 | DATAI PBAR Initial |
|-------------------------------------------------------|
MB%D2F=20 | DATAI PBAR Final |
|-------------------------------------------------------|
MB%UDB=21 | Unit Data Block for JOB 0 BAT Blocks |
395
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
|-------------------------------------------------------|
MB%IRS=22 | IORB Status Word, IS.ERR if Hard (See PHYPAR) |
|-------------------------------------------------------|
MB%SRE=23 | Soft Read Errors |
|-------------------------------------------------------|
MB%SWE=24 | Soft Write Errors |
|-------------------------------------------------------|
MB%HRE=25 | Hard Read Errors |
|-------------------------------------------------------|
MB%HWE=26 | Hard Write Errors |
|-------------------------------------------------------|
MB%PS1=27 | Position, CYL if Disk, File if Tape |
|-------------------------------------------------------|
MB%PS2=30 | SURF/SEC or Record |
|-------------------------------------------------------|
MB%CS0=31 | Channel Logout 0 |
|-------------------------------------------------------|
MB%CS1=32 | Channel Logout 1 |
|-------------------------------------------------------|
MB%CS2=33 | Channel Logout 2 |
|-------------------------------------------------------|
MB%CC1=34 | First CCW |
|-------------------------------------------------------|
MB%CC2=35 | Second CCW |
|-------------------------------------------------------|
MB%MPE=36 | Count of MPE |
|-------------------------------------------------------|
MB%NXM=37 | Count of NXM |
|-------------------------------------------------------|
MB%FEC=40 | Final Error Count |
|-------------------------------------------------------|
MB%CAD=41 | Channel Address |
|-------------------------------------------------------|
MB%UAD=42 | Unit Address |
|-------------------------------------------------------|
MB%SPE=43 | Soft Positioning Errors |
|-------------------------------------------------------|
MB%HPE=44 | Hard Positioning Errors |
|-------------------------------------------------------|
MB%OVR=45 | Overruns |
|-------------------------------------------------------|
MB%ICR=46 | Initial TCR |
|-------------------------------------------------------|
MB%REG=47 | Units Massbus Registers in order with their: |
\ Final Contents,, Initial Error Contents \
| |
+-------------------------------------------------------+
MB%LEN=124
396
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
Event Type 115
Configuration Status Change (logged by MTCON)
+--------------------------------------------------------+
CS%OPW=0 | Operation Code |
| Codefield is CS%OPR=77B17 |
| Codes are: CS%ADV=0; Attach Device |
| CS%DDV=1; Detach Device |
|--------------------------------------------------------|
CS%HTP=1 | Hardware Type |
| Channel Type | Unit Type |
|--------------------------------------------------------|
CS%DNM=2 | Logical Device Name (SIXBIT) |
|--------------------------------------------------------|
CS%APS=3 | Device Address and Serial Number |
|--------------------------------------------------------|
CS%RSW=4 | Offset to Reason String |
+--------------------------------------------------------+
Event Type 130
Front End Errors Data Block
+--------------------------------------------------------+
FE%FJB=0 | Fork Number,,Job Number |
|--------------------------------------------------------|
FE%DIR=1 | Directory Numbers |
|--------------------------------------------------------|
FE%ID=2 | Front End Software Version |
|--------------------------------------------------------|
FE%NAM=3 | SIXBIT Name of Program |
|--------------------------------------------------------|
FE%DEV=4 | Protocol Device Code (1B0=Unknown) |
|--------------------------------------------------------|
FE%PTR=5 | -Length of Data,,Start of Data |
|--------------------------------------------------------|
FE%DTE=6 | DTE Number |
|--------------------------------------------------------|
FE%BYT=7 | Number of -11 Bytes in the Message |
+--------------------------------------------------------+
FE%LEN=10
397
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
Event Type 131
Front End Reload ERROR BLOCK DATA
+--------------------------------------------------------+
R1%NUM=0 | -11 Number |
|--------------------------------------------------------|
R1%STS=1 | Reload Status Bits |
|--------------------------------------------------------|
R1%FNM=2 | File Name Pointer |
|--------------------------------------------------------|
R1%ERW=3 | -11 Error Word |
|--------------------------------------------------------| / \
| | |
\ String Area \ 20
| | |
+--------------------------------------------------------+ \ /
R1%LEN=30
0 1 2 3 4 5 6 7 8 9 0 1 12 32 33 35
Word +--------------------------------------------------------+
R1%STS=1| | | | | | | | | | | | | | |
+--------------------------------------------------------+
Symbol Bits Contents
.R1GTF 0 GTJFN failed for Dump File
.R1OPF 1 OPENF failed for Dump File
.R1DPF 2 Dump failed
.R110E 3 To -10 Error on Dump
.R111E 4 To -11 Error on Dump
.R1ASF 5 ASGPAG failed on Dump
.R1RLF 6 Reload failed
.R1PDF 7 -11 didn't Power Down
.R1PUF 8 -11 didn't Power Up
.R1RMF 9 ROM did not ACKnowledge the -10
.R1BSF 10 -11 Boot Program didn't
make it to the -11
.R1NRL 11 -11 took more than 1 Min. to
Reload.
.R1RTC 33-35 Retry Count
398
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
0 1 2 17 18 19 20 35
Word +-------------------------------------------------------+
R1%ERW=3| | Fault Code | | Parity Register |
+-------------------------------------------------------+
Bits Contents
2-17 Fault code as 3 RAD50 characters
20-35 Parity Register Valid Only if it is Nonzero
Event Type 133
Halt for KS10
+--------------------------------------------------------+
HS%COD=0 | Halt Status Code (Phy. Loc. 0) |
|--------------------------------------------------------|
HS%PC=1 | Program Counter (Phy. Loc. 1) |
|--------------------------------------------------------|
HS%PTR=2 | Halt Status Block Offset Pointer |
|--------------------------------------------------------|
CS%PTR=3 | Clock Stop Blk Offset Pty. (Unused) |
|--------------------------------------------------------| / \
HS%HDZ=4 | | |
\ Halt Status Block \ HS%HSZ
| | =22
| | |
+--------------------------------------------------------+ \ /
HS%LEN=26
399
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
Halt Status Block
+--------------------------------------------------------+
HS%NUL=0 | Magnitude |
|--------------------------------------------------------|
HS%PC=1 | PC |
|--------------------------------------------------------|
HS%HR=2 | Current Instruction |
|--------------------------------------------------------|
HS%AR=3 | AR |
|--------------------------------------------------------|
HS%ARX=4 | ARX |
|--------------------------------------------------------|
HS%BR=5 | Base Register |
|--------------------------------------------------------|
HS%BRX=6 | Base Register Extension |
|--------------------------------------------------------|
HS%ONE=7 | Constant One |
|--------------------------------------------------------|
HS%EBR=10 | Exec Base Register |
|--------------------------------------------------------|
HS%UBR=11 | User Base Register |
|--------------------------------------------------------|
HS%MSK=12 | Mask |
|--------------------------------------------------------|
HS%FLG=13 | Microcode Status Flags |
|--------------------------------------------------------|
HS%PI=14 | PI Status |
|--------------------------------------------------------|
HS%X1=15 | 1 | 1 |
|--------------------------------------------------------|
HS%T0=16 | T0 |
|--------------------------------------------------------|
HS%T1=17 | T1 |
|--------------------------------------------------------|
HS%VMA=20 | VMA Flags VMA |
|--------------------------------------------------------|
HS%FE=21 | FE | SC |
+--------------------------------------------------------+
400
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
Event Type 160
Processor Parity Trap Error Block Data
+--------------------------------------------------------+
PT%PFW=0 | Page Fail Word |
|--------------------------------------------------------|
PT%BDW=1 | Bad Data Word |
|--------------------------------------------------------|
PT%GDW=2 | Good Data Word |
|--------------------------------------------------------|
PT%USR=3 | User Number |
|--------------------------------------------------------|
PT%JOB=4 | FORKX | JOBN |
|--------------------------------------------------------|
PT%PGM=5 | Program Name (SIXBIT) |
|--------------------------------------------------------|
PT%PMA=6 | Physical Memory Address |
|--------------------------------------------------------|
PT%TRY=7 | Flags | Retry Count |
|--------------------------------------------------------|
PT%EPA=10 | EPT Offset Physical Address |
|--------------------------------------------------------|
PT%EPD=11 | EPT Offset Data |
|--------------------------------------------------------|
PT%UPA=12 | UPT Offset Physical Address |
|--------------------------------------------------------|
PT%UPD=13 | UPT Offset Data |
+--------------------------------------------------------+
PT%LEN=14
0 1 2 3 4 17 18 35
Word +-------------------------------------------------------+
PT%TRY=7 | | | | | | | Retry Count |
+-------------------------------------------------------+
Symbol Bits Contents
PT%HRO 1 Hard Error
PT%CCP 2 Cache Failure
PT%CCH 3 Cache in Use
PT%ESW 4 Error on Sweep to Core
18-35 Retry Count
401
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
Event Type 161
Processor Parity Interrupt Error Data Block
+-------------------------------------------------------+
PI%CNI=0 | CONI APR |
|-------------------------------------------------------|
PI%ERA=1 | ERA |
|-------------------------------------------------------|
PI%FPC=2 | PC |
|-------------------------------------------------------|
PI%SWP=3 | Number of Errors This Sweep |
|-------------------------------------------------------|
PI%AAD=4 | Logical "AND" of Bad Addresses |
|-------------------------------------------------------|
PI%OAD=5 | Logical "OR" of Bad Addresses |
|-------------------------------------------------------|
PI%ADA=6 | Logical "AND" of Bad Data |
|-------------------------------------------------------|
PI%ODA=7 | Logical "OR" of Bad Data |
|-------------------------------------------------------| / \
PI%SBD=10 | SBUS DIAG Function Data | |
\ \ 10.
|-------------------------------------------------------| \ /
PI%ADD=22 | First 10. Bad Addresses | / \
\ \ 10.
|-------------------------------------------------------| \ /
PI%DAT=34 | First 10. Bad Data Words | / \
\ \ 10.
|-------------------------------------------------------| \ /
PI%CDA=46 | Core Ref of First 10. Bad Addresses | / \
\ \ 10.
|-------------------------------------------------------| \ /
PI%FFL=60 | Flags |
+-------------------------------------------------------+
PI%LEN=61
402
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
Event Type 162
Parity Format for Extensible Controllers
+-------------------------------------------------------+
PI%CN2=0 | CONI APR |
+-------------------------------------------------------+
PI%ER2=1 | ERA |
+-------------------------------------------------------+
PI%FL2=2 | flags |
+-------------------------------------------------------+
PI%PC2=3 | PC |
+-------------------------------------------------------+
PI%ERC=4 | Error count |
+-------------------------------------------------------+
PI%AA2=5 | logical "AND" of bad addresses |
+-------------------------------------------------------+
PI%OR2=6 | logical "OR" of bad addresses |
+-------------------------------------------------------+
PI%AD2=7 | Logical "AND" of bad data |
+-------------------------------------------------------+
PI%OD2=10 | Logical "OR" of bad data |
+-------------------------------------------------------+
PI%SB2=11 | -Count of controllers | first offset |
+-------------------------------------------------------+
PI%BAD=12 | | /\
\ First ten bad addresses \ 10.
| | \/
+-------------------------------------------------------+
PI%DA2=24 | | /\
\ First ten bad words \ 10.
| | \/
+-------------------------------------------------------+
PI%MDA=36 | | /\
\ Memory references of first ten words \ 10.
| | \/
+-------------------------------------------------------+
PI%SBA=50 | | /\
\ SBDIAG data \ PI%MXS
| | =100
| | \/
+-------------------------------------------------------+
403
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
Event Type 163
Status Block Entry
+-------------------------------------------------------+
SB%API=0 | APRID |
+-------------------------------------------------------+
SB%APR=1 | CONI APR |
+-------------------------------------------------------+
SB%PIC=2 | CONI PI |
+-------------------------------------------------------+
SB%PGD=3 | DATAI PAG |
+-------------------------------------------------------+
SB%PGC=4 | CONI PAG |
+-------------------------------------------------------+ / \
SB%UP0=5 | | 4
\ UPT locations 424-427 \ |
+-------------------------------------------------------+ \ /
SB%ERA=11 | RDERA |
+-------------------------------------------------------+
SB%RHC=12 | | /\
| CONI RH20 -- for all 8 possible | SB%RHL
\ \ =8
+-------------------------------------------------------+ \/
SB%DTC=22 | | /\
| CONI DTEN -- for all 4 possible | SB%DTL
\ \ =4
+-------------------------------------------------------+ \/
SB%EP0=26 | | / \
| EPT locations 0-37 | 40
\ \ |
+-------------------------------------------------------+ \ /
SB%EP1=66 | | / \
| EPT locations 140-177 | 40
\ \ |
+-------------------------------------------------------+ \ /
SB%UP1=126| | /\
| UPT locations 500-503 | 4
\ \ \/
+-------------------------------------------------------+
SB%6=132 | | /\
| AC block 6 REGS 0-3 and 12 | 5
\ \ \/
+-------------------------------------------------------+
SB%7=137 | | /\
| AC block 7 REGS 0-2 | 3
\ \ \/
+-------------------------------------------------------+
SB%SBD=142| | / \
| SBDIAG data | SB%SBL
\ \ =50
+-------------------------------------------------------+ \ /
SB%MAX=213
404
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
Event Type 241
KLIPA Statistics Entry
+-------------------------------------------------------+
KS%OFF=0 | Offset to Counters |
|-------------------------------------------------------|
KS%VER=1 | Microcode Version Word |*
|-------------------------------------------------------|
KS%AAK=2 | Path A Acks |
|-------------------------------------------------------|
KS%ANK=3 | Path A Nacks |
|-------------------------------------------------------|
KS%ANR=4 | Path A No-Responses |
|-------------------------------------------------------|
KS%BAK=5 | Path B Acks |
|-------------------------------------------------------|
KS%BNK=6 | Path B Nacks |
|-------------------------------------------------------|
KS%BNR=7 | Path B No-Responses |
|-------------------------------------------------------|
KS%DGD=10 | Datagrams Discarded |
|-------------------------------------------------------|
KS%PXM=11 | Packets Transmitted |
|-------------------------------------------------------|
KS%PRC=12 | Packets Received |
|-------------------------------------------------------|
KS%DPT=13 | Designated Port Word |
| |28 KS%PRT |
| | Designated Port |
|-------------------------------------------------------|
KS%CRC=14 | Packets Received With Crc Errors |
|-------------------------------------------------------|
KS%EW1=15 | KS%MPE | KS%CPE |
| Mover PAR Pre Errors | CBUS Parity Errors |
|-------------------------------------------------------|
KS%EW2=16 | KS%RPE | KS%DPE |
| Register PLIPE Errors | Data PLIPE Errors |
|-------------------------------------------------------|
KS%EW3=17 | KS%CHE | KS%EPE |
| Channels Errors | EBUS Parity Errors |
|-------------------------------------------------------|
KS%EW4=20 | KS%SCE | KS%CAT |
| Spurious Channel Errors | CBUS Available Timeouts |
|-------------------------------------------------------|
KS%EW5=21 | KS%SRA | KS%STA |
| Spurious Receive Atten. | Spurious Transmit Atten. |
|-------------------------------------------------------|
KS%EW6=22 | KS%TBP | KS%TTM |
| Xmit Buffer Parity Errors| Transmitter Timeouts |
+-------------------------------------------------------+
KS%LEN=23
405
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
0 11 14 15 17 18
Word +-------------------------------------------------------+
KS%VER=1 | | | | | |
|-------------------------------------------------------|
Symbol Bits Contents
KS%NI 0 O=CI, 1=NI
KS%RSN 11-14 Reason for Doing Read-Counters
0, Illegal
KS%CPE=1, CRAM Parity Error
KS%AGB=2, Wire A Went From Good to Bad
KS%ABG=3, Wire A Went From Bad to Good
KS%BGB=4, Wire B Went From Good to Bad
KS%BBG=5, Wire B Went From Bad to Good
KS%PER=6, Periodic Reading of Counters
KS%GUC=7, Get Microcode Version
KS%DIA=10, DIAG% Did It
KS%CHN 15-17 KLIPA Channel Number
KS%VSN 18-35 Microcode Version
Event Type 242
CI Disk/Tape Endpacket
+-------------------------------------------------------+
CI%NOD=0 | Port Number | Node Number |
|-------------------------------------------------------|
CI%VID=1 | Volume ID |
|-------------------------------------------------------|
CI%RED=2 | Blocks/Frames Read |
|-------------------------------------------------------|
CI%WRT=3 | Blocks/Frames Written |
|-------------------------------------------------------|
CI%PS1=4 | Position 1 |
|-------------------------------------------------------|
CI%PS2=5 | Position 2 |
|-------------------------------------------------------|
CI%UDB=6 | Required For Bat Block Logic |
|-------------------------------------------------------|
CI%LOC=7 | Linear Address From Error Block |
|-------------------------------------------------------| / \
CI%PAK=10 | | |
| Packet With Error Bit On | 9.
| | |
|-------------------------------------------------------| \ /
CI%LEN=21
406
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
Event Type 243
MSCP Error Log
+-------------------------------------------------------+
EL%NOD=0 | Port | Node |
|-------------------------------------------------------| / \
EL%PAK=1 | | |
| Data Packet | 96.
| | |
+-------------------------------------------------------+ \ /
EL%LEN=141
Event Type 244
KLIPA Error Event
+-------------------------------------------------------+
KP%CSR=0 | CONI Status |
|-------------------------------------------------------|
KP%VER=1 | Microcode Version |*
|-------------------------------------------------------|
KP%DSP=2 | Error Disposition |
|-------------------------------------------------------|
KP%CRA=3 | CRAM Address |
|-------------------------------------------------------|
KP%CRD=4 | CRAM Data (2 Words) |
|-------------------------------------------------------|
KP%LG0=6 | Logout Word 0 |
|-------------------------------------------------------|
KP%LG1=7 | Logout Word 1 |
|-------------------------------------------------------|
KP%LG2=10 | Logout Word 2 |
|-------------------------------------------------------|
KP%ECW=11 | Port's Error Word |
|-------------------------------------------------------|
KP%PE0=12 | Port's Error Logout Word 0 |
|-------------------------------------------------------|
KP%PE1=13 | Port's Error Logout Word 1 |
|-------------------------------------------------------|
KP%LEN=14
407
MONITOR TABLES
SYSERR-STORAGE-AREA (Cont.)
0 15 17
Word +-------------------------------------------------------+
KP%VER=1 | | | | |
+-------------------------------------------------------+
Symbol Bits Contents
KP%NI 0 Set if this is a KLNI
KP%CHN 15-17 Port's RH20 Channel
202
Event Type 246
KLIPA Error-Log Packet
+-------------------------------------------------------+
KE%SRC=0 | Source Word |*
+-------------------------------------------------------+
KE%LEN=1
15 17 18 35
Word +-------------------------------------------------------+
KE%SRC=0 | | | |
+-------------------------------------------------------+
Symbol Bits Contents
KE%CHN 15-17 KLIPA Channel Number
KE%NOD 18-35 HSC50 Node Number
408
MONITOR TABLES
SYSTEM BLOCK
There is a system block for each node on the CI that TOPS-20 has
detected. System block addresses are found in the table SBLIST. The
system block is the device-dependent portion of the KDB representing
the CI node.
|
| Defined in: SCAPAR
+-------------------------------------------------------+
| |
| |
| Device-independent portion of KDB |
| |
| |
| |
+-------------------------------------------------------+
.SBANB | Address of next system block |
|-------------------------------------------------------|
.SBAPB | Address of associated port control block |
|-------------------------------------------------------|
.SBACD | Address of associated channel data block |
|-------------------------------------------------------|
| | | SBVCST |
| .SBVCS | Closing/opening bits | Dest vir cir state * |
| |-------------------------------------------------------|
| Symbol Bit Contents Symbol Value Meaning
| SBNTC 0 Need to close VC.CLO 0 Closed
| VC
| SBOKO 1 OK to open VC VC.STS 1 Start sent
| SBWFI 2 Waiting for VC.STR 2 Start received
| new IDREC
| VC.OPN 3 Open
409
MONITOR TABLES
| SYSTEM BLOCK (Cont.)
| |-------------------------------------------------------|
| | SBCHN | SBDPA |
| .SBDSP | Channel number | Destination port |
| |-------------------------------------------------------|
| | SBDRQH |
| .SBDRQ | Datagram return queue header |
| |-------------------------------------------------------|
| | SBLMBH |
| .SBLMB | Local message buffer header |
| |-------------------------------------------------------|
.SBFCB | Pointer to first connection block |
|-------------------------------------------------------|
.SBLCB | Pointer to last connection block |
|-------------------------------------------------------|
.SBTWQ | FLINK for SCA work queue |
|-------------------------------------------------------|
.SQBWQ | BLINK for SCA work queue |
|-------------------------------------------------------|
.SBCLC | Count of locked connections |
|-------------------------------------------------------|
.SBQOR | Pointer to queue of outstanding requests |
|-------------------------------------------------------|
.SBDSS \ \
\ Destination system \
|-------------------------------------------------------|
| | SBMXMG | SBMXDG |
| .SBMMS | Max mess size (bytes) | Max DG size (Bytes) |
| |-------------------------------------------------------|
| | SBDTSW |
| .SBDST | Destination software type |
| |-------------------------------------------------------|
| | SBDVSW |
| .SBDSV | Destination software version |
| |-------------------------------------------------------|
| .SBDSE | Destination software edit level |
| |-------------------------------------------------------|
| | SBDTHW |
| .SBDHT | Destination hardware type |
| |-------------------------------------------------------|
| \ SBDVHW \
.SBDHV \ Destination hardware version \
\ \
\ \
|-------------------------------------------------------|
.SBNNM \ Destination port name \
\ \
|-------------------------------------------------------|
.SBDPC | Destination port characteristics |
|-------------------------------------------------------|
.SBDCR | Destination Port Code Revision Level |
410
MONITOR TABLES
| SYSTEM BLOCK (Cont.)
|-------------------------------------------------------|
.SBDPF | Destination Port Functionality |
|-------------------------------------------------------|
.SBDPS | Destination Port State |
|-------------------------------------------------------|
.SBTIM | TODCLK at last message from this remote |
|-------------------------------------------------------|
| .SBFLG | | | | Flags |*
| |-------------------------------------------------------|
|
| Symbol Bit Contents
| SBFTMG 0 Timed message
| SBFOVC 1 VC needs open
| SBFOFL 3 Node offline
|
| |-------------------------------------------------------|
| | SBSST |
| .SBSST | Start Sequence Timer |
| |-------------------------------------------------------|
| | SBOBB |
| .SBOBB | Out bound buffer for system block |
| +-------------------------------------------------------+
411
MONITOR TABLES
TR
DECnet Router test message data block.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+
TRTND | Node to test with |
|------------------------------------------------------------------------|
TRTSN | Serial number of message |
|------------------------------------------------------------------------|
TRTAF | Time when message reaches RTRFWD |
|------------------------------------------------------------------------|
TRTIC | Time at input complete |
|------------------------------------------------------------------------|
TRTOC | Time when output complete is received |
|------------------------------------------------------------------------|
TRTTD | Time given to DLL |
|------------------------------------------------------------------------|
TRTTA | Total time to turn around (TIC-TAF) |
|------------------------------------------------------------------------|
TRTED | Time to get from FWD to DLL (TTD-TAF) |
|------------------------------------------------------------------------|
TRTFD | Time from forward to output done (TTF-TOC) |
+------------------------------------------------------------------------+
412
MONITOR TABLES
TT-LINE-DYN-DATA-BLK
Teletype Line Dynamic Data Block. This block pointed to by the line's
entry in TTACTL, holds line specific data and is built when the line
becomes active. It is deallocated when the line becomes inactive.
There are two shortened forms of the dynamic data block, one used for
a SENDALL type of message and the other for sending a "ding" when any
character but CTRL/C is typed on an inactive line.
| Defined in: TTYDEF
Format
+-------------------------------------------------------+
TTFLG1=0 | Flags |*
|-------------------------------------------------------|
TTDAT1=1 | | TINTL |*
| Buffer Info & Term. Type | Internal Line Number |
|-------------------------------------------------------|
TTSAL1=2 | TLTYP | TSALT | TSALC |
| Line Type | Send All | Send All |*
| | Timeout Count | Character Count |
|-------------------------------------------------------|
TTSAL2=3 | |
| Send All Byte Pointer |
|-------------------------------------------------------|
TTDEV=4 | Device dependent word |
| (See Device modules for definitions) |
|-------------------------------------------------------|
TTBFRC=5 |0 7|8 11|12 15|16 25|26 35|
| TOWRN | TTNIN | TTNOU | TIMAX | TOMAX |
| Wake Up |# of |# of | Max bytes | Max bytes |
| Count | Input |Output |In Input Buf| In Output Buf |
| | Bufs | Bufs | | |
|-------------------------------------------------------|
TTOCT=6 | Number of Characters in Output Buffer |
|-------------------------------------------------------|
TTOOUT=7 | Pointer for Removing Char from Output Buffer |
|-------------------------------------------------------|
TTOIN=10 | Pointer for Entering Char into Output Buffer |
|-------------------------------------------------------|
TTDAT2=11 | Input Info. & Page Width |*
|-------------------------------------------------------|
TTICT=12 | Number Characters in Input Buffer |
|-------------------------------------------------------|
TTIOUT=13 | Pointer for Removing Char from Input Buffer |
|-------------------------------------------------------|
TTIIN=14 | Pointer for Entering Char into Input Buffer |
413
MONITOR TABLES
TT-LINE-DYN-DATA-BLK (Cont.)
|-------------------------------------------------------|
FCMOD1=15 | Control Character Output Control Words |
|--------- ---------|
FCMOD2=16 | Possible Values for each Char. (2 Bits/Char) |
| CCNONE = 0 Send nothing |
| CCIND = 1 Indicate via ^ |
| CCSEND = 2 Send Actual Code |
| CCSIM = 3 Simulate Format Action |
|-------------------------------------------------------|
TTDPSI=17 | Bit for Terminal Code Set if Deferred Interrupt |
|-------------------------------------------------------|
TTPSI=20 | Bit for Terminal Code Set if Interrupt |
|-------------------------------------------------------|
TTLINK=21 | Lines linked to (9 bits per line) |
|-------------------------------------------------------|
TTLPOS=22 | TPGPS | TLNPS |
| Cur Line Position in Page| Current Charcter Position |
| | within Line |
|-------------------------------------------------------|
| TTFLGS=23 |0 | |10 17| |32 35|
| |TOFLG | |TPLEN | | TTDUM |
| |^O was| | page length | |duplex |
| | typed| | | | mode |
|-------------------------------------------------------|
TTFORK=24 | TCJOB | TWFRK |
| Controlling Job Number | Fork Number in Input Wait |
| | on this Line |
|-------------------------------------------------------|
TTFRK1=25 | TTPSFK | TTPFK |
| PSI Fork # for | Fork which is Top Fork of |
| Non-controlling TTY | a SCTTY Tree (-1 if None)|
|-------------------------------------------------------|
TTCHR1=26 | Wake Up Character Mask (ASCII Codes 0-31.) |
|-------------------------------------------------------|
TTCHR2=27 | Wake Up Character Mask (ASCII Codes 32.-63.) |
|-------------------------------------------------------|
TTCHR3=30 | Wake Up Character Mask (ASCII Codes 64.-95.) |
|-------------------------------------------------------|
TTCHR4=31 | Wake Up Character Mask (ASCII Codes 96.-127.) |
414
MONITOR TABLES
TT-LINE-DYN-DATA-BLK (Cont.)
|-------------------------------------------------------|
TTFWTH=32 | | TTFCNT |*
| PSI Level Info | Byte Count |
|-------------------------------------------------------|
TTLINE=33 | Line Counter |
|-------------------------------------------------------|
TTLMAX=34 | Maximum of TTLINE |
|-------------------------------------------------------|
TTFLG2=35 |0 | 1 |2 4|5 11|12 18| |
|TTFLA | |TTETP |TTCH1 |TTCH2 | |
|First char | |Type |First |Second | |
|seen flag | | |char |char | |
|-------------------------------------------------------|
TTSVPD=36 | Saved Line Speed |
+-------------------------------------------------------+
TTDDLN=37
0 1 2 3 4 5 6 7 8 9 10 11 30 35
+-------------------------------------------------------+
TTFLG1 | | | | | | | | | | | | | | TTLCK |
+-------------------------------------------------------+
Symbol Bits Pointer Contents
TT%SAL 0 TTSAL Sendall being done to
this line
TT%SHT 1 TTSHT This is a short block
TT%MES 2 TTMES This is a system
message block
TT%OTP 3 TTOTP Output is enroute to
the line
TT%FWK 4 TTFWK Forced wakeup
TT%SFG 5 TTSFG CTRL/S was typed
TT%RFG 6 TTRFG Repeat last character
(BKJFN)
TT%WFG 7 TTWFG Blocked on input
TT%PRM 8 TTPRM Don't deallocate
dynamic data
TT%BAC 9 TTBAC Permanent and becoming
active
TT%NXO 10 TTNXO Is 0, no page output stop
TT%BKO 11 TTBKO Fork blocked for output
event
TT%NUS 12 TTNUS Net user state
TT%DD1 13 TTDD1 Device dependent bit
TT%NPM 14 TTNPM MCB NVT old page mode
TT%RXF 15 TTRXF Received XDN on line
TT%FLO 16 TTFLO Flushing output at TTSND
415
MONITOR TABLES
TT-LINE-DYN-DATA-BLK (Cont.)
TT%HPO 17 TTHPO High priority output
queued
TT%DAL 18 TTDAL Deallocate of block
requested
| TT%XFF 19 TTXFF Force XOFF/XON status
| to front-end
| TT%SEC 20 TTSEC Server should echo
| TT%WKC 21 TTWKC Wake-up set has changed
| TT%SPG 22 TTSPG Page stop is turned on
| in the server
| TT%BIN 23 TTBIN Current data mode is
| binary (0=ASCII)
| TT%NUL 24 TTNUL ASCII mode nul pass
| through
TT%LCK 30-35 TTLCK Count of locks on this
block
0 4 5 7 8 9 17 18 35
+-------------------------------------------------------+
TTDAT1 | | | | | TTINTL |
+-------------------------------------------------------+
Bit Pointer Contents
4-5 TYLMD Terminal data mode for last
input character
5-7 TTOCN Count of extra buffers
8 TTOMX Extra buffers in use
9-17 TTTYP Terminal type
18-35 TINTL Internal line number
(index into static data)
0 17 23 35
TTSAL1 +------------------------------------------------+
| TLTYP | TSALT | TSALC |
+------------------------------------------------+
Bit Pointer Contents
0-17 TLTYP Line type
18-23 TSALT Sendall timeout count
24-35 TSALC Sendall character count
416
MONITOR TABLES
TT-LINE-DYN-DATA-BLK (Cont.)
0 6 7 8 9 17 18 26 27 35
+-------------------------------------------------------+
TTDAT2 | | | | TYLCH | TPWID | |
+-------------------------------------------------------+
Bit Pointer Contents
0-8 TTUPC Unpause on page character
9-17 TYLCH Last char removed from input
buffer
18-26 TPWID Page width
27-35 TTPPC Pause/unpause on page character
0 5 6 11 12 17 18 35
+-------------------------------------------------------+
TTFWTH | | TTIPSI | TTOPSI | TTFCNT |
+-------------------------------------------------------+
Bit Pointer Contents
6-11 TTIPSI Input PSI level
12-17 TTOPSI Output PSI level
18-35 TTFCNT Byte count for wakeup
(0=> disabled for wakeup)
417
MONITOR TABLES
TTACTL
Teletype Active Line Table. This resident table contains a pointer to
each active line's dynamic data block.
Defined in: STG
Index: Line Number
Format
+-------------------------------------------------------+
TTACTL: | Address of dynamic data block if active | / \
| or -1 if becoming active | |
| or 0 if inactive | |
|-------------------------------------------------------| |
| . |
| . | NLINES
| . |
| . | |
| . | |
| . | |
\ \ \ /
+-------------------------------------------------------+
NOTE
Bit 0 can be on if the entry is an address. This
indicates the address is to a short message block.
418
MONITOR TABLES
TTBUFS
Teletype Buffers. This storage area contains the input and output
buffers for each line (TTY and PTY) on the system. Input and output
pointers to each buffer are kept in the line's dynamic data block.
These buffers are fixed length and are assigned on demand. When there
is no character activity, the buffers are deassigned.
Defined in: STG
Format
+-----------------------------------------------------+
TTBUFS: | Pointer to Next Buffer |
|-----------------------------------------------------|
| | / \
| | |
| |
| |Buffer
| |
| | \ /
|-----------------------------------------------------|
| . |
\ . \
|-----------------------------------------------------|
| Pointer to Next Buffer |
|-----------------------------------------------------|
| | / \
| | |
| |
| |Buffer
| |
| | \ /
|-----------------------------------------------------|
| . |
\ . \
+-----------------------------------------------------+
NOTE
The free buffers are linked and are pointed to by
TTFREB.
419
MONITOR TABLES
TTCSAD
Terminal Call Special Request Address Table. This resident table is
used to dispatch to a scheduler routine for a special line request.
Special line requests are made when the DTEQ routine is unable to
obtain space for a packet and cannot block to wait for the space.
(i.e. process is NOSKED, or request made at interrupt or scheduler
level). A special line request is made so that a packet will be
queued later by SCHED. (See Table, TTCSTM).
Defined in: STG
Index: Line Number
Format
0 6
+-------------------------------------------------------+
TTCSAD: | | |* / \
|-------------------------------------------------------| |
| . | |
| . | |
| . |
| . | NLINES
| . |
| | |
| | |
\ \ \ /
+-------------------------------------------------------+
Bit Routine Meaning
0 TTTOBL Turn on line
1 TTSMIO TTMSG action
2 TTCOF Carrier off check
| 3 TTCON1 Carrier on action
4 DZHV2 Hang up DZ line
5 NTYCOF Carrier off action
6 CKSALL Unhang stuck TTMSG line
7 CKNOIS Noisy line check
8-35 Reserved for future use
420
MONITOR TABLES
TTCSTM
Terminal Call Special Request Time Table. This resident table
parallels the TTCSAD table and holds the time the Scheduler is to call
the special request routine in TTCSAD.
Defined in: STG
Index: Line Number
Format
+-------------------------------------------------------+
TTCSTM: | Time for scheduler to call routine in TTCSAD | / \
|-------------------------------------------------------| |
| . | |
| . | |
| . |
| . | NLINES
| . |
| | |
| | |
| | |
\ \ \ /
+-------------------------------------------------------+
421
MONITOR TABLES
TTSPWD
Terminal Speed Word Table. This resident table contains the terminal
speeds for each terminal.
Defined in: STG
Index: Line number
Format
+-------------------------------------------------------+
TTSPWD: | TTISP Input Speed | TTOSP Output Speed | / \
|-------------------------------------------------------| |
| . | |
| . |
| . | NLINES
| . |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
422
MONITOR TABLES
TTSTAT
Teletype Status Table. This resident table contains the terminal
characteristic flags.
Defined in: STG
Index: Line Number
Format
+-------------------------------------------------------+
TTSTAT: | Terminal Characteristics Flags |* / \
|-------------------------------------------------------| |
| . | |
| . |
| . | NLINES
| . |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
0 1 2 3 4 5 6 7 8 10 13 15 17 8 9 20 27 28 35
+-------------------------------------------------------+
| | | | | | | | | | | | | TSFMC | TTFBB |
+-------------------------------------------------------+
Symbol Bits Pointer Contents
TT%FEM 0 TTFEM Line is remote
TT%NTS 1 TTNTS Don't send system mesg.
TT%FXO 2 TTFXO Line needs XON
TT%CON 3 TTCON Carrier is on
TT%FSP 4 TTFSP Line needs speed set
TT%FXF 5 TTFXF Line needs XOF
TT%IGI 6 TTIGI Ignore input when line
is inactive
TT%AUT 7 TTAUT Line is auto-speed
TT%XOC 8 TTXOC Line needs XON/XOFF
character (KS)
TT%FPK 8 TTFPK Waiting for FE post (KL)
TT%SHU 9 TTSHU Line is shut off
TT%WSO 10 TTWSO Line was shut off
TT%NTM 11 TTNTM Line does not want
miscellaneous terminal
messages
423
MONITOR TABLES
TTSTAT (Cont.)
TT%NUM 12 TTNUM Line does not want
nonprivileged TTMSG's
14-17 TTYSTY Line type which yields the
offset into the TTLINV table
18-19 TTNOI Count of noise characters
on inactive line
20-27 TSFMC Max count for front-end buffer
28-35 TTFBB Entry count in Big Buf
424
MONITOR TABLES
TTY-STORAGE-AREA
Teletype Storage Area. This resident area contains hung and special
line information, the Big Buffer, and information about the Big
Buffer. (See TT-LINE-DYN-DATA-BLK, TTACTL, TTBUFS, TTCSAD, TTCSTM,
TTLINV, TTSPWD, TTSTAT, and TTXXVT Tables).
Defined in: STG
Format
+-------------------------------------------------------+
CTYINT: | Unit No. on the .FEDLS Device by which the |
| Front End Knows the CTY |
|-------------------------------------------------------|
TCOERR: | TCOUT Sets this if Fails in Scheduler Context |
|-------------------------------------------------------|
JORLDF: | Interlock FE Reload Because CTY Hung |
|-------------------------------------------------------|
SALLCK: | SENDALL lock |
|-------------------------------------------------------|
SALCNT: | Count of Lines Doing SENDALL |
|-------------------------------------------------------|
SALBFR: | SENDALL Buffer Address |
|-------------------------------------------------------|
TTFREC: | Count of Free Buffers |
|-------------------------------------------------------|
TTFREB: | List of Free Buffers |
|-------------------------------------------------------| / \
TTSOQ: | Start Output Queue | |
| One Bit Per Line |NTSQWD
| | |
|-------------------------------------------------------| \ /
| | | /|\
| CHSOQ: | CTERM Start Output Queue |CHSQWD
| | 1 bit per line | |
| |-------------------------------------------------------| \ /
PTYSTM: | PTY Start Time |
|-------------------------------------------------------| / \
TNETRQ: | Bit Mask for Active Net | |
| User Lines |NTSQWD
| | |
| | \ /
|-------------------------------------------------------| / \
TQLNQ: | Bit Matrix for Line | |
| Function Queue |NTSQWD
| | |
425
MONITOR TABLES
TTY-STORAGE-AREA (Cont.)
|-------------------------------------------------------| \ /
| | | /|\
| SBBITS: | SBVECT Bit Mask |SBBWDS
| | 1 bit per line | |
| |-------------------------------------------------------| \ /
TTBIGI: | Input Index into Big Buffer |
|-------------------------------------------------------|
TTBIGO: | Output Index into Big Buffer |
|-------------------------------------------------------|
TTBIGC: | Char Count in Big Buffer |
|-------------------------------------------------------| / \
TTBBUF: | Big Buffer | |
| | |
| Storage for all TTY Input Chars. Before Being Placed | TTBSIZ
| Into Individual Input Line Buffers in TTBUFS Area | = 200
| | |
\ \ |
|-------------------------------------------------------| \ /
TTQCNT: | Count of Special Line Items |
|-------------------------------------------------------|
TTCQLN: | Control of Current Line Number |
|-------------------------------------------------------|
TTHNGL: | Line Being Examined for Hung |
|-------------------------------------------------------|
TTHNGT: | Time at Which Line Will be Defined as Hung |
|-------------------------------------------------------|
TTHNGN: | Last Hung Line | No. of Unhangs Done |
|-------------------------------------------------------|
LINKF: | Linked Output Character if not 0 |
|-------------------------------------------------------|
IMECHF: | Immediate Echo Output Char if not 0 |
|-------------------------------------------------------|
TTCHIC: | Input Character in TTCHI |
|-------------------------------------------------------|
426
MONITOR TABLES
UD
This is structure UD, the user data area of a DECnet message.
Defined in: D36PAR
Format
+------------------------------------------------------------------------+ /\
UDMSD | Space for MSD | MD.LEN
\ \ \/
|------------------------------------------------------------------------| /\
UDDAT | Room for 16 bytes always available | <<UDH.LN+3>/4>
\ \ \/
+------------------------------------------------------------------------+
427
MONITOR TABLES
UDB
Unit Data Block. This block, one per unit, contains information about
the current activity on the unit.
Defined in: PHYPAR
Format
+-------------------------------------------------------+
UDBSTS | Status and Configuration Information | *
|-------------------------------------------------------|
UDBST1 | Secondary Status Word | *
|-------------------------------------------------------|
UDBMBW | Memory Bandwidth Scheduling Information |
|-------------------------------------------------------|
UDBODT | Overdue Timer for Seeks and the Like |
|-------------------------------------------------------|
UDBERR | Error Recovery Status Word |
|-------------------------------------------------------|
UDBERP | Error Reporting Work Area if Nonzero |
|-------------------------------------------------------|
UDBDSP | Unit Routine Main Entry Dispatch |
|-------------------------------------------------------|
UDBCDB | Secondary CDB | Primary CDB |
|-------------------------------------------------------|
UDBADR | Secondary Unit Address | Primary Unit Address |
|-------------------------------------------------------|
UDBAKA | Current CDB | Current Chain Address |
|-------------------------------------------------------|
UDBVID | Volume ID |
|-------------------------------------------------------|
UDBSTR | Unit Within Structure | Structure Number |
|-------------------------------------------------------|
UDBKDB | Pointer to KDB, if any |
|-------------------------------------------------------|
UDBDSH | High Order Drive Serial Number |
|-------------------------------------------------------|
UDBDSN | Drive Serial Number |
|-------------------------------------------------------|
UDBSEK | Seeks |
|-------------------------------------------------------|
UDBRED | Reads (Sectors if Disk, Frames if Tape) |
|-------------------------------------------------------|
UDBWRT | Writes (Sectors if Disk, Frames if Tape) |
|-------------------------------------------------------|
UDBRCT | Actual read count |
|-------------------------------------------------------|
UDBWCT | Actual write count |
|-------------------------------------------------------|
UDBRVC | Actual Skip Read (Read Verify) Count |
428
MONITOR TABLES
UDB (Cont.)
|-------------------------------------------------------|
UDBSRE | Soft Read Errors |
|-------------------------------------------------------|
UDBSWE | Soft Write Errors |
|-------------------------------------------------------|
UDBHRE | Hard Read Errors |
|-------------------------------------------------------|
UDBHWE | Hard Write Errors |
|-------------------------------------------------------|
UDBPS1 | Current Cylinder (if Disk), File (if Tape) |
|-------------------------------------------------------|
UDBSP2 | Current Sector (if Disk), Record (if Tape) |
|-------------------------------------------------------|
UDBPWQ | Position Wait Queue Tail | Position Wait Queue Head |
|-------------------------------------------------------|
UDBTWQ | Transfer Wait Queue Tail | Transfer Wait Queue Head |
|-------------------------------------------------------|
UDBONR | Fork Which Owns This Unit (Maint. Mode) |
|-------------------------------------------------------|
UDBERC | Current Retry Count |
|-------------------------------------------------------|
UDBSPE | Soft Positioning Error |
|-------------------------------------------------------|
UDBHPE | Hard Positioning Error |
|-------------------------------------------------------|
UDBPNM | Program Name to Log on Error |
|-------------------------------------------------------|
UDBUDR | User Directory Number to Log on Error |
|-------------------------------------------------------|
UDBSIZ | Unit Size (Number of Cylinders) |
|-------------------------------------------------------|
UDBFCT | Seek Fairness Count |
|-------------------------------------------------------|
UDBCHB | IORB Used by Home Block Check |
|-------------------------------------------------------|
UDBFCR | Fairness Cnt. for Read Seek Preference |
|-------------------------------------------------------|
UDBSLV | Slave number if tape |
|-------------------------------------------------------|
UDBCHR | Characteristics word |
|-------------------------------------------------------|
UDB2ND | Pointer to UDB for Dynamic Alternate Port |
|-------------------------------------------------------|
UDBALT | Pointer to UDB for Static Alternate Port |
|-------------------------------------------------------|
UDBDDP | Device Dependent Parts for MTA or for DSK |
| |
| |
| |
\ \
+-------------------------------------------------------+
429
MONITOR TABLES
UDB (Cont.)
Device Dependent Parts for disks:
+-------------------------------------------------------+
UDBDDP= | HOMNAM SIXBIT/HOM/ |
UDBNAM | |
|-------------------------------------------------------|
UDBHID: | HOMID SIXBIT/Unit ID/ |
|-------------------------------------------------------|
UDBHM2: | Unused |
|-------------------------------------------------------|
UDBSNM: | HOMSNM SIXBIT/Structure Name/ |
|-------------------------------------------------------|
UDBLUN: | # of Parks in STR | Logical Park # in STR |
|-------------------------------------------------------|
UDBMID: | HOMMID Pack Unique Code |
|-------------------------------------------------------|
UDBDCF: | Don't care Flags word |
|-------------------------------------------------------|
UDBCOD: | HOMCOD 0 | CODHOM (707070) |
|-------------------------------------------------------|
UDBPDB= | Two-word Serial Number |
UDBSER | |
|-------------------------------------------------------|
UDBNPR: | Non-CI Processor Info |
| |-------------------------------------------------------| / \
| UDBP00: | Node 0 Info | |
| |-------------------------------------------------------|
| UDBP01: | Node 1 Info |*
| |-------------------------------------------------------|*
| . | . |*
| . | . |*
| . | . |*
| . | . |*
| |-------------------------------------------------------|
| UDBP15: | Node 15 Info |*
| |-------------------------------------------------------|
UDBDDD= | |
RP.CNI | CONI of RH |
|-------------------------------------------------------|
RP.CRC | DATAI of RH Control Register |
|-------------------------------------------------------|
RP.DBF | DATAI of RH Data Register |
|-------------------------------------------------------|
RP.CYL | Number of Cylinders per unit |
|-------------------------------------------------------|
RP.SCL | Number of Sectors per Cylinder |
|-------------------------------------------------------|
RP.SSF | Number of Sectors per Surface |
|-------------------------------------------------------|
RP.USU | Number of USEC per LA REG Unit |
430
MONITOR TABLES
UDB (Cont.)
|-------------------------------------------------------|
RP.USF | SSF * 64 (LA REG Unit) |
|-------------------------------------------------------|
RP.LST | Start of Last Page on a Cylinder |
|-------------------------------------------------------| / \
RP.REG | Drive Registers | |
| | |
| | |
| | 20
| | |
/ \ |
| | |
+-------------------------------------------------------+ \ /
L.RP4 = Length of RP04/5/6/7 UDB
| Words UDBP00 through UDBP15 have the following format:
|
| 0 33 34 35
| +------------------------------------------------------+
| | Node Server Number,, | | | |
| +------------------------------------------------------+
|
| Symbol Bit Meaning
|
| UDB%MA 33 Node in maintenance mode
| UDB%WA 34 Wire A is good
| UDB%WB 35 Wire B is good
431
MONITOR TABLES
UDB (Cont.)
Device Dependent Parts for Tapes:
+-------------------------------------------------------+
UDBDDP= | Frames Read in NRZJ (Magtape) |
UDBRNR | |
|-------------------------------------------------------|
UDBRPE | Frames Read in PE |
|-------------------------------------------------------|
UDBRGC | Frames Read in GCR |
|-------------------------------------------------------|
UDBRNR | Frames Written in NRZI |
|-------------------------------------------------------|
UDBWPE | Frames Written in PE |
|-------------------------------------------------------|
UDBWGC | Frames Written in GCR |
|-------------------------------------------------------|
UDBDDM= | Hardware-Determined Density |
TU6HDN | |
|-------------------------------------------------------|
TU6EPS | Error Position |
|-------------------------------------------------------|
TU6EBP | Error Byte Pointer |
|-------------------------------------------------------|
TU6EBC | Error Byte Counter |
|-------------------------------------------------------|
TU6ECL | Tape Cleaner Flag |
+-------------------------------------------------------+
LU.TM2 = Length of TM02 UDB
UDBPDB through UDBP15 is a copy of the PDB (processor data block)
which resides on sector 3 of a disk. It has the same format.
432
MONITOR TABLES
UDB (Cont.)
24 26 31 35
+-------------------------------------------------------+
UDBSTS | | | | |
+-------------------------------------------------------+
Symbol Bits Pointer Content
US.OFS 0 USOFL Offline or unsafe
US.CHB 1 Check home blocks before any
| normal I/O
US.POS 2 Positioning in progress
US.ACT 3 Active
US.BAT 4 Off if bad BAT blocks on this unit
US.BLK 5 Lock bit for this units BAT blocks
US.PGM 6 Dual port switch in (A or B)
(RP04,5,6)
US.MAI 7 Unit is in MAINT mode
US.MRQ 8 MAINT mode is requested on this
unit
US.BOT 9 Unit is at BOT
US.REW 10 Unit is rewinding
US.WLK 11 Unit is write locked
US.CIP 12 Unit is on a CI port
US.OIR 13 Operator intervention required.
Set at interrupt level, checked at
SCHED.
US.OMS 14 Once a minute message to operator.
Used in conjunction with US.OIR
US.PRQ 15 Positioning required on this unit
US.TAP 16 Tape type device
US.PSI 17 PSI online/offline/rewind done
transition occurred
US.DSK 18 Disk type device
US.OR1 19 1st overdue rewind timer bit
US.OR2 20 2nd overdue rewind timer bit
US.2PT 21 Drive may be dual-ported
between systems
US.TPD 22 Disk is offline to prevent
three ports
US.BDK 23 CI broadcast needed
US.RTY 24-26 Retry count field
US.CIA 27 CI available
US.UNA 28 Device unavailable (like 16 bit
disk)
31-35 USTYP Unit Type
433
MONITOR TABLES
UDB (Cont.)
Type Code for USTYP
Symbol Code Unit Symbol Code Unit
.UTRP4 1 RP04 .UTT70 17 TU70
.UTRS4 2 RS04 .UTT71 20 TU71
.UTT45 3 TU45 .UTT72 21 TU72
.UTTM2 4 TM02 (as unit) .UTT73 22 TU7X
.UTRP5 5 RP05 .UTDXB 23 DX20B for RP20
disks
.UTRP6 6 RP06 .UTP20 24 RP20
.UTRP7 7 RP07 .UTNOD 25 CI node w/o MSCP
server
.UTRP8 10 RP08 .UTHSC 26 HSC50
.UTRM3 11 RM03 .UTR80 27 RA80
.UTTM3 12 TM03 .UTR81 30 RA81
.UTT77 13 TU77 .UTR60 31 RA60
.UTTM7 14 TM78 .UTR82 32 RA82 (future)
.UTT78 15 TU78 .UTR62 33 RA62 (future)
.UTDXA 16 DX20A for tapes .UTTA7 34 TA78
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
+-------------------------------------------------------+
UDBST1 | | | | | | | | | | | | | | | | |
+-------------------------------------------------------+
Symbol Bits Content
U1.OFS 0 Forced offline dual ported disk
U1.FED 1 UDB ported to front-end
U1.DCD 2 Disk with don't care set
U1.DCU 3 UDB don't care set
U1.HBR 4 Home block read in progress
U1.PDW 5 PDW write in progress
U1.STC 6 Status change while reading
home blocks
therefore we must do it again
U1.DCR 7 Don't care about this dual
ported disk
(U1.DCD!U1.DCU composite)
U1.PHB 8 Primary Home block bad
U1.SHB 9 Secondary home block bad
U1.PDR 10 PDV read in progress
U1.VV 11 Volume valid
U1.ODT 12 Overdue IORB Indicator
U1.SOF 13 Structure timer is triggered
| U1.NOL 14 Unit not online; wait while
| searching for login structure
434
MONITOR TABLES
UDIORB
UDSKIO IORB Pool. The free IORBS are linked together in UDIORB and
this list is pointed to by UIOLST. Used for disk IORBs (long).
Defined in: STG
Format
+-------------------------------------------------------+ / \
UDIORB: | | |
| | |
\ \ |
|-------------------------------------------------------| |
| | |
| . | |
| . | NUIORB
| . | *
| | UIOLEN
\ \ |
|-------------------------------------------------------| |
| | |
| | |
\ | |
+-------------------------------------------------------+ \ /
435
MONITOR TABLES
UDS
Unit Dispatch Service Routine Table. This table, one per unit type,
contains vectored addresses to unit dependent functions, and is given
in its generalized form. The specific unit dispatch tables are RP4DSP
(in PHYP4) for the disk device, and TM2DSP (in PHYM2) for the magtape
device. See PHYPAR for definitions of arguments given and returned on
calls to these unit routines.
Defined in: PHYPAR
Format
+-------------------------------------------------------+
UDSINI=0 | Initialize |
|-------------------------------------------------------|
UDSSIO=1 | Start I/O on an IORB, skips if O.K. |
|-------------------------------------------------------|
UDSINT=2 |Interrupt Routine (called on interrupts for XFER done) |
|-------------------------------------------------------|
UDSERR=3 | Initiate Error Retry (skips if no more retrys) |
|-------------------------------------------------------|
UDSHNG=4 | Hung Reset (called from TIMER to reset hung devices) |
|-------------------------------------------------------|
UDSCNV=5 | Convert Unit Linear Address to CYL, SURF, SEC |
|-------------------------------------------------------|
UDSLTM=6 | Return Latency or Best Request |
|-------------------------------------------------------|
UDSPOS=7 | Start Positioning on IORB (skips if O.K.) |
|-------------------------------------------------------|
UDSATN=10| Attention Interrupt |
|-------------------------------------------------------|
UDSPRQ=11| Skip if Positioning Required |
|-------------------------------------------------------|
UDSSTK=12| Stack Second Command, Skip if OK |
|-------------------------------------------------------|
UDSEXT=13| Check Legality of Unit, Skip if Existant |
|-------------------------------------------------------|
UDSCCK=14| Check for Halted Microcode in Controllers |
|-------------------------------------------------------|
UDSPRL=15| Release Port |
+-------------------------------------------------------+
436
MONITOR TABLES
UE
This is an NI% user argument block (UN) extension, used for linking
message buffers on and off the LAT message queues.
Defined in: LATSRV
Format
+------------------------------------------------------------------------+
UELW0 | Queue Link Word for linking buffers to CB Qs |
|------------------------------------------------------------------------|
UELW1 | Queue Link Word for linking buffers to NI Qs |
+------------------------------------------------------------------------+
437
MONITOR TABLES
UN
UN is the common argument block passed by all users of NISRV, the
Network Interconnect Server.
Defined in: NIPAR
Format
| 0 2 3 4 5 6 7 8
| +------------------------------------------------------------------------+
| | | | | | | | | UNPRO |*
| | | | | | | | Protocol type |
|------------------------------------------------------------------------|
| UNTDR | UNPMS |
| Time Domain Reflectometry value | PI level mask |
|------------------------------------------------------------------------|
UNPID | Portal ID |
|------------------------------------------------------------------------|
UNUID | User's ID for this portal |
|------------------------------------------------------------------------|
UNRID | Request ID |
|------------------------------------------------------------------------|
UNSTA | Channel status |*
|------------------------------------------------------------------------|
UNCBA | Call back address (NU.OPN only) |
|------------------------------------------------------------------------| /\
UNBFA | Buffer address | 2
\ \ \/
|------------------------------------------------------------------------|
UNBSZ | Buffer size |
|------------------------------------------------------------------------| /\
UNSAD | Source Ethernet address | 2
\ \ \/
|------------------------------------------------------------------------| /\
UNDAD | Destination Ethernet address | 2
\ \ \/
|------------------------------------------------------------------------|
UNSPI | Secondary portal ID |*
|------------------------------------------------------------------------| /\
UNCAR | Current Ethernet address | 2
\ \ \/
|------------------------------------------------------------------------| /\
UNHAD | Hardware address | 2
\ \ \/
|------------------------------------------------------------------------|
| UNOXM | UNORC |
| # Outstanding transmits | # Outstanding receives |
+------------------------------------------------------------------------+
438
MONITOR TABLES
UN (Cont.)
| Field Bit Meaning
|
| UNCHN 0-2 Storage for the NI channel number
|
| UNPAD #3 Use padding for this portal (NU.OPN only)
|
| UNZRO #4 Zero counters after reading
|
| UNADS 5-6 Address space of xmit or rcv buffer
| UNA.EV=0 Exec virtual
| UNA.UV=1 User virtual
| UNA.PH=2 Physical
|
| UNPTR #7 UNDAD contains a byte pointer
|
| UNRSP #8 Response desired
0 1 17 18 26 27 35
+------------------------------------------------------------------------+
UNSTA | | | UNSST | UNEXS |
+------------------------------------------------------------------------+
Symbol Bit Contents
UNRUN 0-1 Channel is running; should be 1b0
UNSST 18-26 Channel substate
UNEXS 27-35 Channel external state
0 8 9 35
+------------------------------------------------------------------------+
UNSPI | UNEXI | |
+------------------------------------------------------------------------+
Symbol Bit Contents
UNEXI 0-8 External portal ID
439
MONITOR TABLES
UPT
User Process Table. A one page User Process Table is associated with
the process controller and with each fork in the system. (Those
associated with forks may be swapped out with the fork.) However,
there is only one UPT known to the hardware/firmware at any one time.
The UPT known is the one whose address is pointed to by the hardware
User Base Register (UBR), which is set-up when a process is chosen to
run. UPT contains the dispatch address for process events (i.e.,
traps) and the user's section map table.
Defined in: STG
Format
HWPTA: +-------------------------------------+
| |
| Available to Software |
| |
\ \
|-------------------------------------| / \
UPTPPM= | | |
HWPTA+400\ Reserved \ 20
| | |
|-------------------------------------| \ /
UPTTPI= | Address of LUUO Block |
KLLUUO=HWPTA+420| |
|-------------------------------------|
UPTOVI= |User Arith. Overflow Trap Instruction|
HWPTA+421| |
|-------------------------------------|
|User Stack Overflow Trap Instruction |
|-------------------------------------|
| User Trap 3 Trap Instruction |
|-------------------------------------|
KIMUFL= | MUUO flags | MUUO OP-AC |
FFL= HWPTA+424| | |
|-------------------------------------|
KIMUPC= | MUUO Old PC |
FPC= HWPTA+425| |
|-------------------------------------|
KIMUEF= | E of MUUO |
HWPTA+426| |
|-------------------------------------|
KIMPCW= | MUUO Process Context |
UPTPCW=HWPTA+427| |
440
MONITOR TABLES
UPT (Cont.)
|-------------------------------------|
UPTDSP= | Kernel No Trap MUUO New PC (word) |
HWPTA+430| |
|-------------------------------------|
| Kernel Trap MUUO New PC (word) |
|-------------------------------------|
|Supervisor No Trap MUUO New PC (word)|
|-------------------------------------|
| Supervisor Trap MUUO New PC (word) |
|-------------------------------------|
|Concealed No Trap MUUO New PC (word) |
|-------------------------------------|
| Concealed Trap MUUO New PC (word) |
|-------------------------------------|
| Public No Trap MUUO New PC (word) |
|-------------------------------------|
| Public Trap MUUO New PC (word) |
|-------------------------------------|
HWPTA+440| Reserved for software |
| |
\ \
|-------------------------------------|
UPTPFW= | Page Fail Word |
TRAPS0=HWPTA+500| |
|-------------------------------------|
UPTPFL= | Page Fail Flags |
TRAPFL=HWPTA+501| |
|-------------------------------------|
UPTPFO= | Page Fail Old PC |
TRAPPC=HWPTA+502| |
|-------------------------------------|
UPTPFN= | Page Fail New PC |
HWPTA+503| |
|-------------------------------------|
HWPTA+504| |
HWPTA+505| User Process Execution Time |
|-------------------------------------|
HWPTA+506| |
HWPTA+507| User Memory Reference Count |
|-------------------------------------|
HWPTA+510| |
| |
441
MONITOR TABLES
UPT (Cont.)
|-------------------------------------|
USSPTB= | User Super Section Table |
HWPTA+520| |
|-------------------------------------|
USECTB= | User Section 0 Pointer |
HWPTA+540| User Section 1 Pointer |
| . |
| . |
| . |
HWPTA+577\ User Section 37 Pointer \
|-------------------------------------|
HWPTA+600| |
| Available to software |
HWPTA+777\ \
+-------------------------------------+
Note: Approximately 1/4 of the UPT is used for hardware cells,
leaving the rest available to software. The monitor currently uses
this area to house the first page of the PSB table. (See PSB table
description.)
442
MONITOR TABLES
USER-PG-MAP-TBL
User Page Map Table. This 512-word swappable table, holds or points
to other tables that hold all of the mapping information needed by the
firmware to translate user mode virtual addresses in a given section
into physical memory addresses. It is pointed to by an entry in the
forks' section table in its User Process Table (UPT). (See UPT table
description.)
The User Page Map, indexed by a 9 bit virtual page number (1),
contains either the storage address for the virtual page if the page
exists (immediate pointer) or a pointer to where the storage address
resides in another table (shared or indirect pointer). The storage
address can be a memory, swapping area, or disk page address.
If the Storage address for the virtual page referenced by the process
contains a memory page address (i.e., Storage Address Bits <12-17>=0),
then the microcode, after copying this translation information along
with the page's access bits into the CPU's Hardware Page Table (2),
concatenates this memory page number with the index into the page to
compose the complete physical address.
If the storage address for the virtual page referenced does not
contain a memory address (i.e., Storage Address Bits <12-17> not equal
to 0), or the page is non-existant (i.e., Null Pointer word) or the
page is being illegally accessed, the microcode will cause a page trap
to the User Process Table (UPT). The monitor is then invoked to
perform the analysis and resolution of the trap condition.
Defined in: PROLOG
443
MONITOR TABLES
USER-PG-MAP-TBL (Cont.)
Format
UPTPGA: +-------------------------------------------------------+ / \
0| | |
| Immediate Pointer | |
|-------------------------------------------------------| |
|0 2| 3 8| | 12 35| |
| Op |Access Bits | | STGADR | |
| Code | | | Storage Address | |
| 1 | | | | |
|-------------------------------------------------------| |
| or | |
| | |
| Shared Pointer | |
|-------------------------------------------------------| |
|0 2 |3 8| |18 35| |
| Op | Access | | SPTX | |
| Code| Bits | | SPT. index |
| 2 | | | (Holds Pg's Stor Adr.) |Virtual
|-------------------------------------------------------| Pg#
| or |(0-777
| | octal)
| Indirect Pointer |
|-------------------------------------------------------| |
|0 2 |3 8 |9 17 |18 35 | |
| Op | Access | IPPGN | SPTX | |
| Code| Bits | PN | SPT index | |
| 3 | | | (Holds Pg Tbl's Stor. Adr)| |
|-------------------------------------------------------| |
| or | |
| | |
| Null Pointer | |
|-------------------------------------------------------| |
|0 2 |3 8| | |
|Op |Access Bits| 0 (Nonexistent Pg) | |
|Code | | | |
| 0 | 0 | | |
|-------------------------------------------------------| |
| . | |
| . | |
\ . \ \ /
+-------------------------------------------------------+
* UPTPGA is the monitor's symbol used when it wishes to
reference the current user's page map table for section 0.
(1) A fork's virtual 18-bit address within a section
is viewed as an address within a 512-word page,
(i.e., virtual page number - 9 bits), Index into
page 9-bits.
444
MONITOR TABLES
USER-PG-MAP-TBL (Cont.)
(2) This 512-word table is examined first by the
microcode for the virtual page translation
information. If not there, it then goes to
the fork's UPTA in memory.
0 2 3 4 5 6 7 8 9 35
+-------------------------------------------------------+
Page Pointer | | | | | | | |Dependent on Pointer Type in Bits <0-2>|
Word +-------------------------------------------------------+
Symbol Bits Meaning
PTRCOD 0-2 Operation Code for the page
pointer type
IMMCOD = 1 Immediate Pointer
SHRCOD = 2 Share Pointer
INDCOD = 3 Indirect
| PTPUB 3 Public Bit
PTWR 4 Write Access
PTKEEP 5 'Keep' Bit*
PTCACH 6 Cache Bit
PTCPY 7 Copy-on-Write (Software Only)
PTSECM 8 Section is mapped
PTLOK 9 Page is Locked (Immediate
Pointer only)
* Once the Keep bit is set in the hardware page table, the entry is
kept until one of the following conditions occurs:
1. DATAO PAG is executed with bit 3 reset in E
2. CONO PAG is executed
3. A reference to another section causes a refill that
overwrites the entry.
445
MONITOR TABLES
USER-PG-MAP-TBL (Cont.)
Pointer Types:
0 2 3 8 9 11 2 3 4 5 6 7 18 35
+-------------------------------------------------+
Immediate Pointer | 1 |Access Bits| | | | | | | | |
+-------------------------------------------------+
Symbol Bits Pointer Meaning
0-8 See above
STORAGE ADDRESS
12-35 STGADR Storage address
(Interpretation follows)
NCORTM 12-17 Non-Core Test Mask yielding
type of storage.
Bits <12-17>=0 =>
Bits <18-35>=Memory Pg Adr.
Bits <12-17> not equal 0 =>
Bits <18-35>=Drum/DSK Adr.
DSKAB 14 Storage address is a disk
address
DSKNB 15 Temporary bit used with DSKAB
to say that disk address is
newly assigned.
DRMAB 16 Storage address is a drum
address
DRMOB 17 Used with DRMAB to indicate
that the swapping area has
overflowed to the disk file
system. (Since TOPS-20
currently uses only the disk
file system for swapping, a
drum storage address will
always have bits 16 17 set.)
UAABC 17&35 Temporary bit used by the
monitor's page trap handler
when a copy-on-write page
trap has occurred. If the
page to be copied is a drum
address, it will be faulted
in before these bits are used,
avoiding conflict over bit 17.
These bits will signify to a
lower level routine, SWPIN,
that the page just gotten from
the free list has no backup
address and that it is to get
a copy of another page.
446
MONITOR TABLES
USER-PG-MAP-TBL (Cont.)
0 2 3 8 9 11 2 3 4 5 6 7 18 35
+-------------------------------------------------+
Null Pointer | 0 |Access Bits| | | | | | | | |
+-------------------------------------------------+
Symbol Bits Meaning
0-8 These bits will have a value
of 0 for the Null Pointer
case.
UAAB 17 Temporary bit used by the
monitor's page trap handler
to say that the page has no
assigned backup address on
disk/drum.
0 1 2 3 8 18 35
+---------------------------------------------------+
Shared Pointer | 2 |Access| | SPTX |
| | Bits| | SPT index |
+---------------------------------------------------+
Bits Pointer Meaning
0-8 See Above
18-35 SPTX The SPT index is used
to obtain from the SPT,
the page's storage
address.
447
MONITOR TABLES
USER-PG-MAP-TBL (Cont.)
0 1 2 3 8 9 17 18 35
+---------------------------------------------------+
Indirect Pointer | 3 |Access| IPPGN | SPTX |
| | Bits| Page # | SPT index |
+---------------------------------------------------+
Bits Pointer Meaning
0-8 See Above
9-17 IPPGN Page # whose value is used
as an offset into the Page
Table (pointed to by the
SPT table address plus the
SPT index in bits <18-35>)
to obtain the page's trans-
lation information.
18-35 SPTX The SPT index is used to
obtain from the SPT the
page table's storage
address. The table's
address plus the offset
specified in bits <9-17>
holds the virtual page's
translation information.
448
MONITOR TABLES
| VANA
|
| Vote Answer Area. The VANA is used by routines which compose the
| reply to an incoming vote (Request Message Set). VANA has the same
| format as VRQA with the exception that "Assorted Reserved Locations"
| is not used.
|
| Defined in: ENQSRV
|
|
| VANA: +-------------------------------------------------------+
| \ \
| \ \
| \ Header Area (Not Used) \
| \ \
| \ \
| |-------------------------------------------------------|
| | EBDOFF | EBPKTN | EBPNUM |
| .MHUDA |.MHUDA offset to data start| Total # msg | This msg # |
| |-------------------------------------------------------|
| | EBFLAG | EBCFSC | EBUNIQ |
| .EBFFW | Flags |Function |Unique code for message set|
| |-------------------------------------------------------|
| | EBNODE | EBFTYP | EBTOTT |
| .EBEOH | CI node number | Opcode |User words for this packet |
| |-------------------------------------------------------|
| | EBQFLG | | EBTYPE |
| .EBSOD | ENQFLG |Reserved | OFN or -2 or -3 |
| |-------------------------------------------------------|
| | EBSTRN |
| .EBFL1 | Structure name in Sixbit |
| |-------------------------------------------------------|
| | EBADDR |
| .EBFL2 | Storage Address (from SPTH) |
| |-------------------------------------------------------|
| | EBGRP | EBHASH |
| .EBGHV | Group number | Hash value for Lock-Block |
| |-------------------------------------------------------|
| | EBMBWS | EBTSWS |
| .EBWCT | # of words in Mask Block | # of words in Text String |
| |-------------------------------------------------------| /|\
| .EBSMB \ \ 15
| \ Mask Block \ Words
| \ \ \|/
| |-------------------------------------------------------| / \
| \ \ |
| \ ASCIZ String \ 50
| \ or \ Words
| \ 500000,,0 + User Code \ |
| \ \ \ /
449
MONITOR TABLES
| VANA (Cont.)
| |-------------------------------------------------------| /|\
| \ \ 3
| \ Additional Data Area \ Words
| \ \ \|/
| +-------------------------------------------------------+
|
450
MONITOR TABLES
VN
VN contains the DECnet NSP and Routing Version number words.
Defined in: D36PAR
Format
| 0 7 8 15 16 23
+------------------------------------------------------------------------+
| VNVER | VNECO | VNUCO | |
|Version number | ECO number |User ECO number| |
+------------------------------------------------------------------------+
451
MONITOR TABLES
| VRB
|
| Vote Request Buffer. VRB is used to send the reply back to the node
| which issued the vote request. All replies only require a single SCA
| message buffer.
|
| Defined in: ENQSRV
|
| +-------------------------------------------------------+
| \ \
| \ Port Header \
| \ and \
| \ SCA Header \
| \ \
| |-------------------------------------------------------|
| | EBDOFF | EBPKTN | EBPNUM |
| .MHUDA |.MHUDA offset to data start| Total # msg | This msg # |
| |-------------------------------------------------------|
| | EBFLAG | EBCFSC | EBUNIQ |
| .EBFFW | Flags |Function |Unique code for message set|
| |-------------------------------------------------------|
| | EBNODE | EBFTYP | EBTOTT |
| .EBEOH | CI node number | Opcode |User words for this packet |
| |-------------------------------------------------------|
| | EBQFLG | | EBTYPE |
| .EBSOD | ENQFLG |Reserved | OFN or -2 or -3 |
| |-------------------------------------------------------|
| | EBSTRN |
| .EBFL1 | Structure name in Sixbit |
| |-------------------------------------------------------|
| | EBADDR |
| .EBFL2 | Storage Address (from SPTH) |
| |-------------------------------------------------------|
| | EBGRP | EBHASH |
| .EBGHV | Group number | Hash value for Lock-Block |
| |-------------------------------------------------------|
| | EBMBWS | EBTSWS |
| .EBWCT | # of words in Mask Block | # of words in Text String |
| |-------------------------------------------------------|
| .EBAD1 | Additional Data word 1 |
| |-------------------------------------------------------|
| .EBAD2 | Additional Data word 2 |
| |-------------------------------------------------------|
| .EBAD3 | Additional Data word 3 |
| +-------------------------------------------------------+
|
452
MONITOR TABLES
| VRPA
|
| Vote Reply Area. VRPA is used to collect the replies to the vote
| request.
|
| Defined in: ENQSRV
|
| VRPA: +-------------------------------------------------------+
| | VPFLAG | | VPUNIQ |
| .VPWD0 | Flags |Reserved |Unique code for message set|
| |-------------------------------------------------------|
| .VPAD1 | Additional Data word 1 |
| |-------------------------------------------------------|
| .VPAD2 | Additional Data word 2 |
| |-------------------------------------------------------|
| .VPAD3 | Additional Data word 3 |
| +-------------------------------------------------------+
|
|
| +-------------------------------------------------------+
| | VPFLAG | | VPUNIQ |
| .VPWD0 | Flags |Reserved |Unique code for message set|
| +-------------------------------------------------------+
|
|
|
| Contents of VPFLAG:
|
| Symbol Bits Meaning
|
| VPNOV 0 No vote required for this lock
| VPNO 1 A "NO" reply was received from another node
| VPRTY 2 A cluster state change occurred
|
|
453
MONITOR TABLES
| VRQA
|
| Vote Request Area. VRQA is used by Interface Routines to compose the
| Request Message Set. The ten words of header exist so that the
| offsets exactly match the SCA message buffer in the Request Message
| Set.
|
| Defined in: ENQSRV
|
| VRQA: +-------------------------------------------------------+
| \ \
| \ \
| \ Assorted Reserved Locations \
| \ \
| \ \
| |-------------------------------------------------------|
| | EBDOFF | EBPKTN | EBPNUM |
| .MHUDA |.MHUDA offset to data start| Total # msg | This msg # |
| |-------------------------------------------------------|
| | EBFLAG | EBCFSC | EBUNIQ |
| .EBFFW | Flags |Function |Unique code for message set|
| |-------------------------------------------------------|
| | EBNODE | EBFTYP | EBTOTT |
| .EBEOH | CI node number | Opcode |User words for this packet |
| |-------------------------------------------------------|
| | EBQFLG | | EBTYPE |
| .EBSOD | ENQFLG |Reserved | OFN or -2 or -3 |
| |-------------------------------------------------------|
| | EBSTRN |
| .EBFL1 | Structure name in Sixbit |
| |-------------------------------------------------------|
| | EBADDR |
| .EBFL2 | Storage Address (from SPTH) |
| |-------------------------------------------------------|
| | EBGRP | EBHASH |
| .EBGHV | Group number | Hash value for Lock-Block |
| |-------------------------------------------------------|
| | EBMBWS | EBTSWS |
| .EBWCT | # of words in Mask Block | # of words in Text String |
| |-------------------------------------------------------|
| .EBSMB \ \ /|\
| \ Mask Block \ 15
| \ \ Words
| |-------------------------------------------------------| \|/
| \ \ /|\
| \ ASCIZ String \ 50
| \ or \ Words
| \ 500000,,0 + User Code \ |
| \ \ \|/
454
MONITOR TABLES
| VRQA (Cont.)
| |-------------------------------------------------------| /|\
| \ \ 3
| \ Additional Data Area \ Words
| \ \ \|/
| +-------------------------------------------------------+
|
|
| |-------------------------------------------------------|
| | EBFLAG | EBCFSC | EBUNIQ |
| .EBFFW | Flags |Function |Unique code for message set|
| |-------------------------------------------------------|
|
| Contents of EBFLAG:
|
| Symbol Bits Meaning
|
| EQNOV 0 No vote required for this lock
| EQNO 1 A "NO" reply was received from another node
| EQANS 2 This is a reply to a vote request
| EQBLN 3 Ignore level numbers for this vote
| EQTXT 4 The lock is described by a text string
|
|
| +-------------------------------------------------------+
| \ \
| \ \
| \ Assorted Reserved Locations \
| \ \
| \ \
| |-------------------------------------------------------|
|
|
| Contents of Port and SCA Header Section of VRQA:
|
| Symbol Location Meaning
|
| VOTUNI VRQA+0 Vote Unique Code
| VOTVCT VRQA+1 The count of outstanding replies
| VRBADR VRQA+2 The address of the vote reply buffer
| ASMPTR VRQA+3 Offset into VRQA used by EQMSG
| RPLYND VRQA+4 CFS host index to send reply to
| EQLBLT VRQA+5 Lock-Block Action List
| EQLBCT VRQA+6 Count of blocks on action list
| EQCSTF VRQA+7 Cluster state change flag
455
MONITOR TABLES
WS
WS defines the format for the NI Write Station Info command.
Defined in: PHYKNI
Format
+------------------------------------------------------------------------+
WSHAD | High order ethernet address |
|------------------------------------------------------------------------|
WSLAD | Low order ethernet address |
|------------------------------------------------------------------------|
| | | | | |
| | WSVAR |*
|------------------------------------------------------------------------|
| | WSRTY |
| | Error retry value |
|------------------------------------------------------------------------|
| WSFNC | |
|Function which invoked this command| |
+------------------------------------------------------------------------+
For field WSVAR(32-35):
WSCRC 32 Allow receipt of frames with CRC errors
WSPMC 33 Promiscious multicast mode
WSH40 34 H4000 mode
WSPRM 35 Promiscious mode
456
MONITOR TABLES
XR
The XR structure defines the format of the queue header for NI portal
block transmit and receive queues (see NI Portal Block -- PR).
Defined in: NIUSR
Format
Queue headers
+------------------------------------------------------------------------+
XRQUH | Pointer to first item |
|------------------------------------------------------------------------|
XRQUE | Pointer to last item |
+------------------------------------------------------------------------+
457
APPENDIX A
LISTING BY MONITOR MODULES
This appendix lists the TOPS-20 modules and the monitor tables defined
in each.
Defined in Table Title
| APRSRV SCHED-Variables
|
| CFSPAR CFS Resource Block
|
| CFSSRV CFS Voter Message Buffer
|
| CLULSN CLUHST
| CLUSTS
|
| CLUPAR CLUDGR Message Buffer
|
| CSTnX CSTnX
|
| CTERMD CA
| CH-CTERMD
|
| D36COM CH-D36COM
| FB
|
| D36PAR AA
| AJ
| BP
| CT
| DL
| EC
| EL
458
LISTING BY MONITOR MODULES
| ES
| ET
| FA
| IA
| IB
| KB
| LI
| MB
| MD-D36PAR
| NE
| NF
| NM
| NX
| OA
| PA
| QA
| QH-D36PAR
| QP
| RC-D36PAR
| RM
| SA
| SJ
| SL
| SS
| TR
| UD
| VN
|
| DNADLL LT
| QB
|
| DSKALC HOM
|
| ENQPAR ENQ/DEQ-LOCK-BLOCK
| Q-BLOCK
|
| ENQSRV VANA
| VRB
| VRPA
| VRQA
|
| FREE FREESPACE BLOCK HEADER/TRAILER
| FREESPACE DESCRIPTOR
| FREESPACE-DESCRIPTOR INDEX TABLE
| FREESPACE HISTORY RECORD
|
| IPCF IPCF-MESSAGE-HEADER
| IPCF-PID-HEADER
|
| IPCIDV PT-IPCIDV
459
LISTING BY MONITOR MODULES
| LATSRV AC
| CB-LATSRV
| CC-LATSRV
| GB
| HC
| HN
| QL
| SB-LATSRV
| UE
|
| LLINKS AK
| LK
| LS
| NN
| RT
| SG-LLINKS
| SV-LLINKS
|
| LLMOP CB-LLMOP
| CD
| CH-LLMOP
| IM
| LB
| LD
| LH
| RB
| RI
| SV-LLMOP
|
| LOGNAM LOGICAL-NAME-DEFINITION
|
| MONSYM DEVCH1
| FDB
| INIDVT
|
| NIPAR CC-NIPAR
| MD-NIPAR
| PC
| UN
|
| NISRV PR-NISRV
|
| NIUSR BR
| PI
| PL
| PR-NIUSR
| XR
|
| NRTSRV NR
460
LISTING BY MONITOR MODULES
| NTMAN DNA Parameter and Counter Data Base
| NT
| PRMP
|
| PHYKLP RIDSTS (Request-ID Status)
|
| PHYKNI BD
| C1
| CM
| FL
| MT
| PB-PHYKNI
| PS-PHYKNI
| PT-PHYKNI
| QE
| QH-PHYKNI
| RC-PHYKNI
| RD
| RS
| SB-PHYKNI
| SN
| WS
|
| PHYM2 KDB
|
| PHYMSC CICMST
| CIDATA
| MSCCID
| MSCINT
| MSCOLD
| MSCTMO
|
| PHYMVR MSCP Server Command Header
| MSCP SERVER STORAGE
| SCDB
|
| PHYP2 KDB
|
| PHYPAR CDB
| CDBCAD
| CDS
| IORB
| KDB
| UDB
| UDS
|
| PHYSIO DSKSIZ
| DSKUTP
| NAMUTP
461
LISTING BY MONITOR MODULES
| PROLOG BAT
| DEV`DTB
| DIRECTORY
| DIRECTORY CACHE
| DST
| FDB
| FKCNO
| FKSWP
| IDXFIL
| JOBRTL
| SPT
| SPTD
| SPTH
| SPTO
| SPTO2
| USER-PG-MAP-TBL
|
| SCAMPI CI Related Variables
| SBLIST (System Block List)
|
| SCAPAR Connect ID Format
| KDB
| PCB (Port Control Block)
| SCA Connection Block
| SCA Ring Buffer Entry
| System Block
|
| SCHED SCHED-VARIABLES
|
| SCLINK BU
| CF
| LN
| NO-SCLINK
|
| SCPAR CB-SCPAR
| MN
| NO-SCPAR
| PB-SCPAR
| PS-SCPAR
| PT-SCPAR
| SB-SCPAR
| ST
|
| SERCOD SYSERR-STORAGE-AREA
|
| STG ALOC1
| ALOC2
| BTB
| BUG-HLT/CHK/INF-STORAGE-AREA
| CDBCAD
462
LISTING BY MONITOR MODULES
| CDR-STORAGE-AREA
| CFHSHT
| CFHSTS
| CFNNAM
| CFSHNM
| CFSHST
| CFSOFN
| CFS Resource Block
| CFSSTR
| CHNTAB
| CLASS-SCHEDULER-STORAGE
| CST0
| CST1
| CST2
| CST3
| CST5
| DEVCH1
| DEVCH2
| DEVCHR
| DEVDSP
| DEVNAM
| DEVUNT
| DIRECTORY CACHE
| DRMBBT
| DRMCNT
| DSKSZ`n
| DST
| DTE-STORAGE-AREA
| DTEDTV
| ENQ/DEQ - STORAGE AREA
| EPT
| EXEC-PG-MAP-TBL
| FE-STORAGE-AREA
| FKBSPW
| FKCNO
| FKINT
| FKINTB
| FKJOB
| FKJTQ
| FKNBW
| FKNR
| FKPGS
| FKPGST
| FKPT
| FKQ1
| FKQ2
| FKSTA2
| FKSTAT
| FKSWP
| FKTIME
463
LISTING BY MONITOR MODULES
| FKWSP
| GTOKPR
| HOME
| HOMTAB
| INIDEV
| INIDV1
| INIDVT
| IPCF-STORAGE-AREA
| JOB AREA
| JOBDIR
| JOBNAM
| JOBPNM
| JOBPT
| JOBRT
| JOBRTL
| JSB
| LOGICAL-NAMES-LIST
| LPT-STORAGE-AREA
| MONITOR-STATISTICS
| MSCP SERVER STORAGE
| MTA-STORAGE-AREA
| MTCUTB
| NTCTAB
| OFNLEN
| PHYUNT
| PIDCNT
| PIDTBL
| PROCESS STORAGE AREA
| PSB
| PTYSTS
| RES-FREE-SPACE
| SCDBTB
| SCHED-VARIABLES
| SCOUNT
| SDB
| SNAMES
| SNBLKS
| SPFLTS
| SPT
| SPTD
| SPTH
| SPTO
| SPTO2
| SPTO3
| SPTO4
| SSIZE
| STIMES
| STRTAB
| SWAP-FREE-SPACE (NON-EXTENDED)
| SYNMTB
464
LISTING BY MONITOR MODULES
| SYS-STARTUP-VECTORS
| SYSERR-STORAGE-AREA
| TTACTL
| TTBUFS
| TTCSAD
| TTCSTM
| TTSPWD
| TTSTAT
| TTY-STORAGE-AREA
| UDIORB
| UPT
|
| TTYDEF TT-LINE-DYN-DATA-BLK
465