Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
SNABK
Control Block Contents
SNABK DSECT
Cross Reference (Contains links to field and bit definitions)
SNABK Prolog
NAME : HCPSNABK DESCRIPTION: SNA Resource Block STATUS : z/VM Version 6, Release 2.0 DSECT : SNABK FUNCTION : To contain information pertaining to a single SNA terminal (LU) connected through a VSM LOCATED BY : VSMRTREE is the anchor field for the SNABK radix tree structure. RDEVSNA Field of RDEV VSMSEVRQ Field of VSMBK, during portions of logoff SNASEVRQ Field of SNABK, during portions of logoff CREATED BY : HCPVCTCN During IUCV CONNECT for an LU DELETED BY : HCPVCZRL During SNA/CCS logoff processing HCPVCZRS During SNA/CCS logoff processing SERIALIZED : SNALOCK Shared-exclusive lock RELOCATION CONSIDERATIONS : None
SNABK Control Block Content
SNABK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure SNABK SNA Resource Block 0000 0 Character 16 SNANQLUN (0) Network Qualified Logical Unit Name 0000 0 Character 8 SNALUN Logical Unit Name 0008 8 Character 8 SNANWQFR NetWork QualiFieR for the logical unit name 0010 16 Dbl-Word 8 SNALOCK (3) SNABK lock 0028 40 Signed 4 SNARDEV Address of the RDEV 002C 44 Signed 4 SNAVSMBK Address of the VSMBK 0030 48 Signed 4 SNAINN Input WEIBK read chain address 0034 52 Signed 4 SNAOUT Output WEIBK write chain address 0038 56 Signed 4 SNAINNL Last in input WEIBK read chain 003C 60 Signed 4 SNAOUTL Last in output WEIBK write chain 0040 64 Signed 4 SNATRQBK Address of redisplay TRQBK 0044 68 Signed 4 SNABTRQ Address of batch write TRQBK 0048 72 Signed 4 SNASCOMQ COMBK queue of split tasks 004C 76 Signed 4 SNASEVRQ Next SNABK on pending sever queue 0050 80 Signed 2 SNACPATH IUCV pathid for CCS 0052 82 Signed 2 SNAVPATH IUCV pathid for the VSM 0054 84 Signed 2 SNAPACEV Pace value for the console 0056 86 Signed 2 SNAPACEC Current pace counter 0058 88 Signed 2 SNAWRST Count of WEIBKs needing restart 005A 90 Bitstring 1 SNAMODE Mode of operation 00000000 SNACONS X'00' SNACONS Console mode 00000001 SNACMS X'01' SNACMS CMS mode 00000002 SNAFSSM X'02' SNAFSSM Full-screen support mode 005B 91 Bitstring 1 SNAFLAG1 Status flags 1... .... SNAPFKEY X'80' SNAPFKEY PF key indicator .1.. .... SNABATCH X'40' SNABATCH Batching in progress ..1. .... SNABPND X'20' SNABPND Line still to be batched ...1 .... SNADISC X'10' SNADISC Disconnect state - release CB's .... 1... SNAERRSM X'08' SNAERRSM Error resume state .... .1.. SNASSPND X'04' SNASSPND User suspended .... ..1. SNAPRMT X'02' SNAPRMT Signal initial logon prompt .... ...1 SNASEVER X'01' SNASEVER Path has been SEVERed 005C 92 Bitstring 1 SNAFLAG2 Status flags 1... .... SNATRPND X'80' SNATRPND Redisplay timer request pending .1.. .... SNADIAL X'40' SNADIAL User DIALed to virtual machine ..1. .... SNAPFKIM X'20' SNAPFKIM Read gets immediate PF key data ...1 .... SNAPA1 X'10' SNAPA1 Notify user of PA1 key in FSSM .... 1... SNANPRTY X'08' SNANPRTY No priority messages to be sent .... .1.. SNAFORCE X'04' SNAFORCE User being forced by CCS .... ..1. SNA#CPFD X'02' SNA#CPFD #CP found by CCS .... ...1 SNAINITF X'01' SNAINITF Initialization finished 005D 93 Bitstring 1 SNAFLAG3 Status flags 1... .... SNAEXWT X'80' SNAEXWT CCS set on execution PSWWAIT bit .1.. .... SNAENTTY X'40' SNAENTTY Enhanced TTY device ..1. .... SNANOMSG X'20' SNANOMSG Suppress logoff/disc/drop msgs ...1 .... SNAIRAWT X'10' SNAIRAWT Wait for an IRA to complete to purge the SNABK .... 1... SNAIRADN X'08' SNAIRADN All IRAs are done, can purge SNABK .... .1.. SNABTPND X'04' SNABTPND Batch write timer request pending .... ..1. SNASVPND X'02' SNASVPND SEVER is/was pending for path .... ...1 SNAMORRD X'01' SNAMORRD Read pending until *MORE* cleared 005E 94 Bitstring 1 SNAFLAG4 Status flags 1... .... SNARLVSM X'80' SNARLVSM SYSVSMLK to be released by cleanup handler .1.. .... SNAEDISC X'40' SNAEDISC Error disconnect in progress ..1. .... SNAONTRE X'20' SNAONTRE SNABK is on the Radix Tree ...1 .... SNAFSPA1 X'10' SNAFSPA1 SNA/CCS FSSM guest hits PA1 key when SET RUN ON. .... 1... SNADING X'08' SNADING DIAL in progress .... .1.. SNAFSMRA X'04' SNAFSMRA A full screen mode request is active .... ..1. SNACLNUP X'02' SNACLNUP The actual cleanup has begun 005F 95 Bitstring 1 SNAFLAG5 Status flags 1... .... SNABUSY X'80' SNABUSY VSM is busy with CMS EW or CLR .1.. .... SNAFSCPS X'40' SNAFSCPS A Full-Screen Channel Program has been Started. Once this bit is turned on it stays on until a non-full-screen transaction is sent to the terminal. 0060 96 Signed 4 * (2) Reserved for future IBM use 0000000D SNASIZE (*-SNABK+7)/8 SNABK size in doublewords
SNABK Storage Layout
*** SNABK - SNA Resource Block * * +-------------------------------------------------------+ * 0 | SNALUN | * +-------------------------------------------------------+ * 8 | SNANWQFR | * +-------------------------------------------------------+ * 10 | | * = SNALOCK = * | | * +---------------------------+---------------------------+ * 28 | SNARDEV | SNAVSMBK | * +---------------------------+---------------------------+ * 30 | SNAINN | SNAOUT | * +---------------------------+---------------------------+ * 38 | SNAINNL | SNAOUTL | * +---------------------------+---------------------------+ * 40 | SNATRQBK | SNABTRQ | * +---------------------------+---------------------------+ * 48 | SNASCOMQ | SNASEVRQ | * +-------------+-------------+-------------+-------------+ * 50 | SNACPATH | SNAVPATH | SNAPACEV | SNAPACEC | * +-------------+------+------+------+------+------+------+ * 58 | SNAWRST |:MODE |:FLAG1|:FLAG2|:FLAG3|:FLAG4|:FLAG5| * +-------------+------+------+------+------+------+------+ * 60 |///////////////////////////////////////////////////////| * +-------------------------------------------------------+ * 68 * *** SNABK - SNA Resource Block
SNABK Cross Reference
Symbol Dspl Value -------------- ---- ----- SNA#CPFD 005C 02 SNABATCH 005B 40 SNABPND 005B 20 SNABTPND 005D 04 SNABTRQ 0044 SNABUSY 005F 80 SNACLNUP 005E 02 SNACMS 005A 00000001 SNACONS 005A 00000000 SNACPATH 0050 SNADIAL 005C 40 SNADING 005E 08 SNADISC 005B 10 SNAEDISC 005E 40 SNAENTTY 005D 40 SNAERRSM 005B 08 SNAEXWT 005D 80 SNAFLAG1 005B SNAFLAG2 005C SNAFLAG3 005D SNAFLAG4 005E SNAFLAG5 005F SNAFORCE 005C 04 SNAFSCPS 005F 40 SNAFSMRA 005E 04 SNAFSPA1 005E 10 SNAFSSM 005A 00000002 SNAINITF 005C 01 SNAINN 0030 SNAINNL 0038 SNAIRADN 005D 08 SNAIRAWT 005D 10 SNALOCK 0010 SNALUN 0000 SNAMODE 005A SNAMORRD 005D 01 SNANOMSG 005D 20 SNANPRTY 005C 08 SNANQLUN 0000 SNANWQFR 0008 SNAONTRE 005E 20 SNAOUT 0034 SNAOUTL 003C SNAPACEC 0056 SNAPACEV 0054 SNAPA1 005C 10 SNAPFKEY 005B 80 SNAPFKIM 005C 20 SNAPRMT 005B 02 SNARDEV 0028 SNARLVSM 005E 80 SNASCOMQ 0048 SNASEVER 005B 01 SNASEVRQ 004C SNASIZE 0060 0000000D SNASSPND 005B 04 SNASVPND 005D 02 SNATRPND 005C 80 SNATRQBK 0040 SNAVPATH 0052 SNAVSMBK 002C SNAWRST 0058
Copyright IBM Corporation, 1990, 2011