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galaxy-sources/mtrcfs.mac
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TITLE MTRCFS - CI/CFS support for MOUNTR
SUBTTL Preliminaries
;
;
; COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION
; 1984,1985
;
; THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED
; AND COPIED ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE
; AND WITH THE INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS
; SOFTWARE OR ANY OTHER COPIES THEREOF MAY NOT BE PROVIDED OR
; OTHERWISE MADE AVAILABLE TO ANY OTHER PERSON. NO TITLE TO
; AND OWNERSHIP OF THE SOFTWARE IS HEREBY TRANSFERRED.
;
; THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE
; WITHOUT NOTICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT
; BY DIGITAL EQUIPMENT CORPORATION.
;
; DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY
; OF ITS SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY
; DIGITAL.
SUBTTL Required files
SEARCH MTRMAC
SEARCH MONSYM
SEARCH MACSYM
SEARCH ACTSYM
SEARCH SERCOD
SEARCH GLXMAC
SEARCH QSRMAC
SEARCH ORNMAC
.REQUIRE SYS:MACREL
SALL ;Want clean listings
SUBTTL Version Information
CFSMAN==:0 ;Maintenance edit number
CFSDEV==:32 ;Development edit number
VERSIN (CFS) ;Generate edit number
IF2,<
PRINTX [Assembling MTRCFS]
> ;End IF2
SUBTTL Table of Contents
; Table of Contents for MTRCFS
;
;
; Section Page
; 1. Preliminaries. . . . . . . . . . . . . . . . . . . . . 1
; 2. Required files . . . . . . . . . . . . . . . . . . . . 2
; 3. Version Information. . . . . . . . . . . . . . . . . . 3
; 4. Table of Contents. . . . . . . . . . . . . . . . . . . 4
; 5. Revision History . . . . . . . . . . . . . . . . . . . 5
; 6. External Symbols . . . . . . . . . . . . . . . . . . . 6
; 7. Static data. . . . . . . . . . . . . . . . . . . . . . 7
; 8. Modifyable data area . . . . . . . . . . . . . . . . . 7
; 9. Port Initialization Routine
; 9.1. Description . . . . . . . . . . . . . . . . . 8
; 9.2. PRTINI. . . . . . . . . . . . . . . . . . . . 9
; 10. KSPT - Process SET PORT command from OPR . . . . . . . 10
; 11. Exit routines
; 11.1. EXERNR - EXit ERror No RSB. . . . . . . . . . 11
; 11.2. EXERRB - EXit with ERror and RSB. . . . . . . 11
; 11.3. EXNERB - EXit No Error and with RSB, header set 11
; 11.4. EXOARB - EXit with Operator Abort and RSB . . 11
; 11.5. EXEARB - EXit Error Abort with RSB. . . . . . 11
; 11.6. EXRSNR - EXit for ReSponse No RSP processing. 11
; 12. CIPTON - Process SET CI PORT AVAILABLE . . . . . . . . 12
; 13. Process SET CI PORT UNAVAILABLE
; 13.1. Description . . . . . . . . . . . . . . . . . 14
; 13.2. CIPTOF - Initial message generation . . . . . 15
; 13.3. Main loop through all disks . . . . . . . . . 16
; 13.4. CIPTRE - Clean up and set port unavailable. . 17
; 13.5. DISMNO - Dismount w/o OPR inquire . . . . . . 18
; 13.6. DISMER - Generate dismount error message. . . 18
; 13.7. DSMOPR - Dismount with OPR inquire. . . . . . 19
; 13.8. CIPTDU - Dual ported disk process . . . . . . 20
; 13.9. CLNREQ - Clean up request after checking OPR reply 21
; 13.10. STDUMS - Setup message to resolve dual port . 22
; 13.11. STREXC - Set structure exclusive with OPR help 23
; 13.12. SETEXC - Set structure exclusive if necessary 24
; 14. CIPTUN - Set disk DDB entry to indicate port operation 25
; 15. PPTRR - Parse OPR response to query. . . . . . . . . . 26
; 16. Channel Routines . . . . . . . . . . . . . . . . . . . 27
; 17. DIAG% Routines . . . . . . . . . . . . . . . . . . . . 28
; 18. Common File System Support
; 18.1. CFSCHK - Check to see whether CFS system. . . 29
SUBTTL Revision History
COMMENT \
***** Release 5.0 -- Begin Development edits *****
1 5.1015 4-mar-83
Create CFS support module.
2 5.1029 8-june-83
Add support for setting CI port offline
3 5.1029 8-june-83
Change references to DV.OFL to DV.UAV & DV.ONL to DV.AVA
to coincide with the changes in ORNMAC
4 5.1029 20-june-83
Add code changes recommended in code review.
5 5.1030 22-june-83
Fix code to handle inferior requests for dismount. The problem was
that the port rsb was not retained and therefore the request could not be
continued after a dismount.
6 5.1031 29-june-83
Add CFS support code
7 5.1033 6-july-83
Add plug for CFSCHK to determine whether CFS system or not.
10 5.1042 30-Sep-83
Fix code to handle inferior requests for dismount. The problem was
that the existing dismount code was not designed to handle an inferior
dismount request. The return from the dismount was always to the caller,
but in the case of port operation we want to return to scheduler on a
DISMOUNT query and set port code on error or success. Set SETFLG to zero
if non CFS. Move some routines to MOUNTR. Add code to set the disk
unavailable/available.
11 5.1044 14-Oct-83
In routine SETPFP, print the correct message in relationship to
AVAILABLE/UNAVAILAVLE when we are debugging. Always release the
dismount RSB after successfully completing a dismount. Clear SETFLG
at end of port operation. Make sure AC0 is not touch accidentally.
12 5.1045 19-Oct-83
In CIPTAV we delete a disk entry by calling DSFDEL, however the routine
is called within a literal and does not have code handle a +2 return.
Therefore on a +2 return MOUNTR starts to execute data in the literal pool.
13 5.1057 14-Nov-83
Add two line of code to set a structure unavailable after it has been
dismounted via setting the port unavailable.
14 5.1059 23-Nov-83
Add a new routine, CIPTDU, to check for dual ported disk drives and
tell the operator to set that dual ported drive single ported to a system.
15 5.1060 28-Nov-83
SETFLG is globally defined and does not always pertain to a particular
port operation. Set a bit, R%REP, in RSBIFL(RSB) to indicate a FORCE action
to a port operation.
16 5.1061 29-Nov-83
After setting the port unavailable, add a port entry to the devices-
status data dase to maintain a port's exclusivity across reloads.
17 5.1062 30-Nov-83
Make DIAGER an internal routine.
20 5.1066 9-Dec-83
Lots of changes:
1. Clean up: Add table of contents; Add an SALL instruction to
suppress macro expansions to make easier to understand listings.
Add lots of comments to clearify code.
2. Eliminate some 2 and 3 line error routines that are only used once
and place them in inline code as literals to make things clearer.
3. Make routine CIPT a continuation of the routine KSPT since KSPT always
jumps there anyway.
4. Eliminate some of the logic in CIPTON. If any disk drive is unavailable
due to port operation, set it back to available. (This assumes only
one CI and that is the only PORT that can set disk drives unavailable.)
5. Eliminate routine CIPTDN. Both the CIPTON and CIPTOF should exit through
CIPTEX.
6. Make routines CIPTR and KSCH local routines since noone else uses them.
7. Change messages for setting port unavailable.
21 5.1076 4-Feb-84
Lots of changes:
1. Check for port existance on SET PORT command
2. Tell of disk drives returned when setting port available.
3. When checking all disk drives, base the search on disk DDBs
4. Fix all references to DDB to use new DDB routines.
5. Add some references to the new $STOP macro to better describe cause for
failure causing halt.
6. Make the messages output more reasonable and consistant.
7. Create entirely new port initialization routine PRTINI.
22 5.1098 14-Feb-84
Make sure we have the correct RSB when SETPT is called. Loop through
DDB instead of DSK when printing disk information relating to port
operation.
23 5.1114 12-Mar-84
Number of changes:
1. Add the smarts to correctly determine if we have a CI port.
2. Add setting structures exclusive if setting port unavailable in CFS.
3. Make some general purpose exit routines to have better control of
exit conditions.
4. Rework main loop of setting CI port unavailable.
24 5.1115 12-Mar-84
Add check to set CFSB. Create routine CFSCHK to return if
another CFS node seen (indicating part of CFS configuration).
25 5.1126 2-Apr-84
Add code to set a structure shared when setting the port available.
26 5.1153 27-July-84
If the port operation is aborted, set the last disk drive and its
mounted structure back to its previous status based the DDB.
27 5.1166 15-Oct-84
Clear RSBDSK as part of the set up procedures for a port operation
because that location might contain previous data. In routine EXEARB, make
sure the DDB and DSK pointer in RSBDSK is not zero, before we try to do some
clean up.
30 5.1188 7-Dec-84
Add message to ask whether the system setting the CI available is part
of a single CI system. If yes do DIAG JSYS and reset disk drives, if no don't
do DIAG JSYS but do the latter.
31 5.1194 14-Jan-85
In routine DISMNO, clear AC 4 before the CALL MATCHS.
32 5.1195 22-Jan-84
Change message in edit 30. If yes skip DIAG else do DIAG and reset the
isk drives.
\ ;End of Revision History
SUBTTL External Symbols
EXTERN AREQ,ARET
EXTERN SAVEQR,SAVETR,STAKTR
EXTERN IOXCTR
EXTERN QSCNIR
EXTERN TMCT0
EXTERN ANY,PRTRSB
EXTERN STRDM2,STRDMS
EXTERN DSPFLG,DSKDSP
; Externals used from MTRDDB
EXTERNAL DSFCRE ;Create a DDB entry
EXTERNAL DSFGET ;Given pointer, get DDB entry
EXTERNAL DSFLOC ;Given spc. locate DDB entry
EXTERNAL DSFUDE ;Given pointer and new entry in DSFE, update it
EXTERNAL DSFNUP,DSFYUP ;No/Yes update disk on updates to DDB
EXTERNAL DSFGNX ;Get next DDB entry of specified type
EXTERNAL DSFE ;Globally used structure to hold DDB
EXTERN STOP,STOPNW ;Stop processing routines
EXTERN PSDR,PRQABT,WOMDAV
EXTERNAL BTACKT,BTNFO,BTWTO
EXTERNAL PORTST ;Port test variable used by MOUNTR to determine state
;of CI port
EXTERNAL DSMHDR ;Dismount TMCT style header
EXTERNAL DDSCIH ;Update all disks routine
EXTERNAL STRREF ;Routine to process operator refusal
EXTERNAL LSTERR ;Last error word
EXTERNAL CFSB ;CFS Built flag
EXTERNAL STSTR,NEWSTA ;Restore structure status
SUBTTL Static data
UNLNOT: ASCIZ/Port Unavailable Procedure Notice/
AVLNOT: ASCIZ/Port Available Procedure Notice/
SUBTTL Modifyable data area
DIAGLN==:3
DIAGBK: BLOCK DIAGLN ;Argument block for diag
CNFBLK: BLOCK .CFISO+1 ;Argument block for CNFIG% JSYS
;Equates
;DIAG
.DGENB==111 ;Disable/enable port function - not yet in MONSYM
.DSDUL==:5 ;A set port switch RSB type.
.DSEXC==:6 ;An exclusive RSB type
SUBTTL Port Initialization Routine -- Description
COMMENT %
The flow of the port initialization routine goes something like this:
Check for port entry in DDB
If entry exists then
begin
If available port then
begin
for all disk entries do
begin
get entry
clear unavailable due to port operation bit
end
else
perform diag to set port unavailable
end
else ;If port entry does not exist
begin
determine port existance
If port exists then
begin
create port entry as available
notify operator
end
end
Apologies to formal language enthusiasts...
NOTE: If port ever existed, continue to allow unavailable in case CI has
been on this system and is currently just busted or missing. In this case,
allowing the use of dual ported drives could be disasterous.
% ; End comment
SUBTTL Port Initialization Routine -- PRTINI
PRTINI:: SETZM PRTRSB ;We are not in a port unavailable procedure
SETZM PORTST ;Default port to available and exists
SETZM CFSB ;Default to not CFS built
MOVEI T1,.CFINF ;Get the function code
MOVEI T2,.CFISO+1 ;Get the length
MOVEM T2,CNFBLK+.CFLEN ;Set it in argument block
MOVEI T2,CNFBLK ;Get address of argument blok
CNFIG% ;Get the configuration information
ERJMP PRTIN0 ;Go to no port
MOVE T1,CNFBLK+.CFISO ;Get the software options
TXNE T1,CF%CFS ;Do we have CFS built?
SETOM CFSB ;Yes, set the flag
MOVE T1,CNFBLK+.CFIHO ;Get the bits
TXNN T1,CF%CI ;Do we have a CI?
PRTIN0: SETOM PORTST ;Set no port
; Check for port entry in DDB
MOVEI T1,.DVPRT ;Get the port type
MOVEM T1,DSFE+DSFTYP ;Save it
SETZ T1, ;Say we have no entries
CALL DSFGNX ;Get the next port entry
JRST PRTIN5 ;Go check for a port on the system
SKIPN PORTST ;Do we have a port?
CALL [SETOM DSFE+DSFPNT ;Say we have a port
CALL DSFUDE ;Update things to say so
$STOP <Can't update previously known port entry>
RET]
; Is port to be available or unavailable?
MOVE T2,DSFE+DSFFLG ;Get the flag word
TXNE T2,DSF%AV ;Is the port available?
JRST PRTIN3 ;No, go do the unavailable stuff
SETZM PORTST ;Set port available
; Port is available. Want to clear port unavailable due to port operation
; flag from all disk entries.
MOVEI T1,.DVDSK ;Get the disk type
MOVEM T1,DSFE+DSFTYP ;Set it as type
SETZ T1, ;Go for the first one
; Loop on all disk entries
PRTIN1: CALL DSFGNX ;Get the next entry
JRST PRTIN9 ;Must be done, go to the end
MOVE T2,DSFE+DSFFLG ;Get the flag word
TXZN T2,DSF%PO ;Clear the bit if needed
JRST PRTIN1 ;If not needed, go for another
MOVEM T2,DSFE+DSFFLG ;Otherwise set the bit
CALL DSFUDE ;Update the entry
CALL STOP
JRST PRTIN1 ;Go for another
; End of loop
; Do the port unavailable stuff
; Don't need to set DSF%PO in disk DDB entries; should already be done
PRTIN3: MOVEI T1,1 ;Get one
MOVEM T1,PORTST ;Set it as unavailable port
MOVE T1,[-DIAGLN,,DIAGBK] ;Size ,, block address
MOVEI T2,.DGENB ;Get function number
MOVEM T2,DIAGBK ;Store it in block
MOVE T2,DSFE+DSFSPC ;Get channel number
MOVEM T2,DIAGBK+1 ;Store it in block
SETZM DIAGBK+2 ;Assume setting disable
SKIPN TSTF ;Are we testing?
DIAG ;No, do the real thing
ERJMPR [TMCT <%IPort operation unsuccessful%_DIAG%% failure%_%J>
JRST PRTIN4] ;Go to send it
TMCT <%IPort set unavailable>
PRTIN4: MOVEI T3,[ASCIZ/Port Operation Completed/]
CALL BTWTO
JRST PRTIN9 ;Go to finish
; Check for a port on the system
PRTIN5: SKIPE PORTST ;Do we have the port
JRST PRTIN9 ;No, nothing more to do
; Create port entry as available
MOVEI T1,CIPORT ;Get the channel number for port
MOVEM T1,DSFE+DSFSPC ;And save it
SETZM DSFE+DSFFLG ;Set the defaults
SETO T1, ;Device exists but no status block
MOVEM T1,DSFE+DSFPNT ;Use that for pointer
CALL DSFCRE ;Create entry
JFCL ;Shouldn't happen
; Tell operator entry added
TMCT <%IPort set available>
MOVEI T3,[ASCIZ/Device added to Disk Data Base/]
CALL BTWTO
; JRST PRTIN9 ;Don't need to jump, already there
PRTIN9: RET ;And done
SUBTTL KSPT - Process SET PORT command from OPR
KSPT:: SKIPGE PORTST ;Do we have a port?
JRST [TMCT <%ICI PORT does not exist> ;No
JRST EXERNR] ;Go output the error
SKIPE PRTRSB ;Are we already in a port operation?
JRST [TMCT <%IAlready processing CI port operation>
JRST EXERNR] ;Go output the error
TXO F,PORTF ;Port operation in process
MOVEI T1,.PTSET ;Port type
CALL OPRSB## ;Get a status block for request
JRST [TMCT <%ISET PORT request denied%
Insufficient MOUNTR resources.%
Try again later.>
JRST EXERNR]
MOVEM RSB,PRTRSB ;Save the RSB and say we are processing
MOVE T1,RBUF+6 ;Get flag/channel word
MOVEM T1,RSBPRT(RSB) ;Save into the status block
LOAD T2,DV.CHN,RSBPRT(RSB) ;Get unit number
CAIE T2,-1 ;Channel specified? halfword field is
;-1 if not
JRST [TMCT<%ISET PORT command only supported for CI port> ;Yes
JRST EXERRB] ;Go output the error
TXNN T1,DV.CI ;CI channel specified?
JRST [TMCT<%IUnknown Port type.%_Only CI ports are supported>
JRST EXERRB] ;Go output the error
; Here we know the command calls for setting status of the CI port
SETZM RSBDSK(RSB) ;Clear any invalid information from previous
MOVX T1,R%PRT ;Indicate port operation
IORM T1,RSBIFL(RSB) ;Set it
MOVEI T1,CIPORT ;Get Channel number
HRRM T1,RSBPRT(RSB) ;Save it
HLL T2,RSBPRT(RSB) ;Get flags from status block
TXNN T2,DV.UAV ;available or unavailable?
JRST [SKIPE PORTST ;Available... is it already available?
JRST CIPTON ;No, so go do it
TMCT <%ICI Port already set available> ;Error message
JRST EXERRB] ;Output the error
SKIPG PORTST ;Is it already unavailable?
JRST CIPTOF ;Set unavailable (enable diag operations)
TMCT <%ICI Port already set unavailable> ;Error message
JRST EXERRB ;Go send message and quit
SUBTTL Exit routines -- EXERNR - EXit ERror No RSB
EXERNR: MOVEI T3,PTEMSG ;Get header
CALL BTACKT ;Tell of problem
RET ;Return, No RSB to delete
SUBTTL Exit routines -- EXERRB - EXit with ERror and RSB
EXERRB: MOVEI T3,PTEMSG ;Get error header
; continue with EXNERB below
SUBTTL Exit routines -- EXNERB - EXit No Error and with RSB, header set
EXNERB: CALL BTACKT ;Tell of the problem
TXZ F,PORTF ;Not in port operation
MOVE RSB,PRTRSB ;Get the port RSB for sure
SETZM PRTRSB ;And clear it, no longer processing port op.
ABTREQ (ABRTNR) ;Clear up RSB
CALL DDSCIH ;Update things
RET ;And done
SUBTTL Exit routines -- EXOARB - EXit with Operator Abort and RSB
EXOARB: TMCT <%IAborted by operator>
; continue with EXEARB below
SUBTTL Exit routines -- EXEARB - EXit Error Abort with RSB
EXEARB:
; Clean up disk and structure
MOVE RSB,PRTRSB ;Get the port RSB
HLRZ T1,RSBDSK(RSB) ;Get the DDB address
JUMPE T1,EXABOR ;No DDB, must not have started P.O. yet
CALL DSFGET ;Get the disk entry
$STOP <Disk drive went away while attempting to clean up abort port operation> ;No disk something is wrong
SETZ T2, ;Clear the unavailable due to P.O bit
STOR T2,DSF%PO,DSFE+DSFFLG ;store it in the DDB
CALL DSFUDE ;Update entry
$STOP <Bad pointer or bad data to DSFUDE..while aborting P.O.>
MOVE DSK,DSFE+DSFPNT ;Get DSK address
MOVE T1,DSKFLG(DSK) ;Get the disk flag
TXNN T1,MS%MNT ;Is it mounted?
JRST EXABOR ;No, all done
; Now for the structure
HLRZ STR,DSKP2(DSK) ;Get the SSB
MOVE T1,STRPNT(STR) ;Get the DDB pointer
CALL DSFGET ;Get the entry
$STOP <Bad DDB pointer to str entry>
CALL NEWSTA ;Get the status
JRST EXABOR ;Not there, all done
CALL STSTR ;Set it
JFCL
EXABOR: MOVEI T3,[ASCIZ/Port Unavailable Procedure Termination/]
JRST EXNERB ;Continue with procedure above
SUBTTL Exit routines -- EXRSNR - EXit for ReSponse No RSP processing
EXRSNR: PUSH P,T1 ;Save the return routine address
CALL BTNFO ;Set for no formatting
TXZ F,PORTF ;Clear port function flag
MOVEI T2,RSBWTB(RSB) ;Get the WTB address
MOVEI T3,UNLNOT ;Get address of notice
POP P,T1 ;Get back return routine address
CALLRET BTWTOR## ;Send wtor
PTEMSG: ASCIZ/Problem Setting Port/
SUBTTL CIPTON - Process SET CI PORT AVAILABLE
; JRSTed to only by KSPT
; AC usage:
; Q1 / 0 if diag successful
; -1 if diag found no CI
; Q2 / 0 if no disks changed
; -1 if disks set available
CIPTON: TMCT <%IIs there another TOPS-20 system currently running on the CI?
'RESPOND <number> Yes or No'%_>
MOVEI T1,CIPTAV ;Get return address
MOVEI T2,RSBWTB(RSB) ;Get the WTB address
MOVEI T3,AVLNOT ;Get address of notice
CALLRET BTWTOR## ;Send wtor
CIPTAV:MOVEI RSB,-RSBWTB(T2) ;Load RSB ac
CALL PSDR## ;Parse answer
JRST CIPTON ;Error, try again
JUMPE T1,[TMCT <%ICI port will not be in use until system is reloaded%_> ;Yes another TOPS-20 system running on CI
MOVEI T3,AVLNOT ;Get address of notice
CALL BTWTO## ;Tell the operator
JRST CIPTO2] ;Skip DIAG
SETZ Q1, ;Assume things will be ok
CALL SETPT ;Do diag
SKIPA ;Error
JRST CIPTO2 ;No error, continue on
; Had an error. If CI does not exist, then quit
MOVEI T1,.FHSLF ;Get my fork
GETER ;Get the error
ERJMP CIPTO1 ;Real error
HRRZ T2,T2 ;Get only the error
CAIE T2,DIAG14 ;Is it does not exist?
CIPTO1: JRST [TMCT <%IPort available operation unsuccessful%_DIAG%% failure%_%J>
TMCT <%Disks have not been set back to available%_>
JRST EXERRB] ;Go to error exit
SETO Q1, ;Mark things that DIAG doesn't count
;Still want to clean up disks if possible
CIPTO2: SETZ Q2, ;No disks found yet
TMCT <%IThe following disk drive(s) have been returned to available:%_>
CALL DSFNUP ;Hold up on updating disk data base
; Loop on all disk drives to fix unavailable due to port operation
; Assumptions made for this code:
; o There can be only one CI per system.
; o Only CI can make a disk unavailable due to port operation.
MOVEI T1,.DVDSK ;The type to look at is disks
MOVEM T1,DSFE+DSFTYP ;Set it as type to look for
SETZ T1, ;Set up for first disk
; Begin loop
CIPTO3: CALL DSFGNX ;Get next disk
JRST CIPTO5 ;Go clean up
MOVEM T1,Q3 ;Save the next disk DDB pointer
MOVE T2,DSFE+DSFFLG ;Get the flags
TXZN T2,DSF%PO ;Unavailable due to port operation?
JRST [CALL SETSHR ;No, check to see if it should be set shared
JRST CIPTBK] ;Go get next dsk entry
MOVEM T2,DSFE+DSFFLG ;Yes, already cleared bit, save it back
TXNN T2,DSF%AV ;Is the disk available now?
JRST [MOVE T2,DSFE+DSFSPC ;Yes, get the CKU
TMCT <%2K set available%_> ;Message for this disk
SETO Q2, ;Found a disk to set available!
JRST CIPTO4] ;Continue
CIPTO4: CALL DSFUDE ;Update the entry
CALL STOP ;Should not happen!
CIPTBK: MOVE T1,Q3 ;Get the next disk pointer
MOVEI T2,.DVDSK ;The type to look at is disks
MOVEM T2,DSFE+DSFTYP ;Set it as type to look for
JRST CIPTO3 ;Go get next dsk entry
; End of loop
; Send message to operator informing of successful completion
CIPTO5: SETZM PORTST ;Say things are available
MOVEI T1,.DVPRT ;Get the port type
MOVEM T1,DSFE+DSFTYP ;Save it
SETZ T1, ;Say we have no entries
CALL DSFGNX ;Get the next port entry
JRST CIPTO6 ;Don't care if not found
SETZRO DSF%AV,DSFE+DSFFLG ;Clear unavailable bit
CALL DSFUDE ;Update the entry
JFCL ;Really don't care at this point
CIPTO6: CALL DSFYUP ;Reenable updating DDB.
SKIPN Q2 ;Did we have any disk status changes?
JRST [TMCT <%INo disk drives set available%_> ;No.
JRST CIPTO7] ;Continue on
CIPTO7: SKIPE Q1 ;Did we really set the port?
JRST [TMCT <Port not found but status set to available>
JRST CIPTO8] ;Continue on
TMCT <Port set available> ;Completion message for available
CIPTO8: MOVEI T3,[ASCIZ/Port Available Operation Completed/]
JRST EXNERB ;Tell operator and exit
;SETSHR - Set a structure shared due to port available
;Accepts - DSFE for disk entry might not be perserved
;return - +1 always
SETSHR: MOVE T1,DSFE+DSFPNT ;Get the disk pointer
MOVE T2,DSKFLG(T1) ;Get the disk status
TXNN T2,MS%MNT ;Do we have a structure mounted on this disk
JRST SETSH2 ;No, go back to loop
; Get the SSB
HLRZ T2,DSKP2(T1) ;Get the SSB
SKIPN T2 ;Do we have a valid SSB?
$STOP <STRUCTURE IS MOUNTED ON DISK BUT NO SSB>
MOVE T1,STRFL1(T2) ;Get the status
TXNN T1,STR%EP ;Is it already shared
JRST SETSH2 ;Yes, all done
SETZRO STR%EP,STRFL1(T2) ;No, clear the exclusive due to P. O. bit
MOVE T1,STRPNT(T2) ;Get the structure DDB pointer
CALL DSFGET ;Get the entry
$STOP <CAN'T GET STRUCTURE DDB WHILE SETTING STR SHARED DURING P.O>
MOVE T1,DSFE+DSFFLG ;Get the structure status flag
TXNE T1,DSF%EX ;Is it exclusive?
JRST SETSH2 ;Yes, go back to loop
; Have to set the structure shared
MOVEI T1,DSFE+DSFSPC ;Get address of alias
MOVE T2,[POINT 7,MSTAL] ;Destination of ascii alias
CALL SIXSEV ;Translate it
MOVE T3,[POINT 7,MSTAL] ;Need pointer again
SETZ T4, ;Shared
MOVE T1,[2,,.MSCSM] ;length 2,,function
MOVEI T2,T3 ;Set up arg block address
MSTR ;Try to set exclusive
ERJMP [MOVEI T1,.FHSLF ;Didn't work, get self
GETER ;Get last error
HRRZ T1,T2 ;Get just error
CAIN T1,MSTX45 ;CFS error?
JRST SETSH2 ;Yes, just return to loop
MOVE T2,STRALI(STR) ;Error, get structure name
TMCT <Set Structure Shared failed during procedure%_>
TMCT <Problem with structure %2S:%_Error -%1J%_%U>
JRST SETSH2] ;Return back to loop with error
MOVE T1,DSFE+DSFSPC ;Get alias structure name
TMCT <Structure %1S set shared due to port available operation%_>
SETSH2: RET ;Go process the next disk
SUBTTL Process SET CI PORT UNAVAILABLE -- Description
COMMENT %
The flow of port unavailabe goes something like this:
Send message to operator describing the impact.
If abort then quit
START LOOP::
while more disks do
begin
If on channel 7 then
begin
Try to dismount without operator intervention
If not successful then exit loop and go process with intervention.
end
else
if CFS then
begin
If dual ported then
begin
if not port force procedure then exit loop and
process dual port (need intervnt)
dismount structure ignoring any need for operator assist
end
If mounted and structure not exclusive due to port operation then
begin
try to set exclusive
if not successful then exit loop and set exclusive with intervent.
set structure exclusive due to port operation
end (of if CFS)
end (of while more disks)
All exit loops return by reinitializing and starting the loop again at
START LOOP::
% ; End of comment
SUBTTL Process SET CI PORT UNAVAILABLE -- CIPTOF - Initial message generation
; JRSTed to only KSPT
CIPTOF: CALL DDSCIH ;Go update disks
CALL KSCH ;Show structures on channel
MOVEI T1,CIPTR ;Address of reply
JRST EXRSNR ;Go to exit with eventual return
; Here on operator reply to CI port unavailable procedure message
; Reentry point
CIPTR: TXO F,PORTF ;Set port function flag
MOVEI RSB,-RSBWTB(T2) ;Load RSB ac
CALL PPTRR ;Parse answer
JRST CIPTOF ;Error, try again
JUMPL T1,EXOARB ;Go do it if operator wants to abort
SKIPE TSTF## ;If private mountr
JRST CIPTRE ;Jump to diag call
; Continued on next page
SUBTTL Process SET CI PORT UNAVAILABLE -- Main loop through all disks
; continued from previous page
CIPTR0: SETZ T1, ;Want to start at the beginning
SKIPA ;Don't want to overwrite
; Beginning of the loop. AC RSB should contain the port RSB
CIPTR1: HLRZ T1,RSBDSK(RSB) ;Get the address of last examined DDB
MOVEI T2,.DVDSK ;Get the disk type
MOVEM T2,DSFE+DSFTYP ;Save the type
CALL DSFGNX ;Go get the next one
JRST CIPTRE ;No more, must be done
HRLM T1,RSBDSK(RSB) ;Save where we now are
MOVE T1,DSFE+DSFFLG ;Get the flag word
SKIPLE DSK,DSFE+DSFPNT ;Does this one point nowhere?
TXNE T1,DSF%PO ;No, is it already unavailable due to Port op?
JRST CIPTR1 ;Yes, go for next one
LDB T1,[POINT 12,DSKCKU(DSK),11] ;Get channel number
HRRZ T2,RSBPRT(RSB) ;Get channel number from port request
CAME T1,T2 ;Is it the requested channel?
JRST CIPTR2 ;No, go do other checks.
; Here when disk is on channel and we want to dismount
CALL DISMNO ;Go try to dismount structure without operator
JRST [SKIPN RSB ;No such luck, abort?
JRST EXEARB ;Yes, go finish up
JRST DSMOPR] ;Otherwise, leave loop for opr inquire
MOVE RSB,PRTRSB ;Restore port RSB
JRST CIPTR1 ;Go for next entry in loop
; Here for not channel 7 checks.
; First do dual port check
CIPTR2: SKIPN CFSB ;Are we CFS?
JRST CIPTR1 ;No, no further checks needed, go for next one
MOVE T1,DSKFLG(DSK) ;Get status
TXNN T1,MS%2PT ;Is is dual ported?
JRST CIPTR3 ;No, go do exclusive check
MOVE T1,RSBIFL(RSB) ;Get the flags
TXNN T1,R%REP ;Is it force?
JRST CIPTDU ;No, leave loop for opr inquire
CALL DISMNO ;Dismount and set disk unavailable
JRST [SKIPN RSB ;Dismount must succeed!
JRST EXEARB ;Known abort
ABTREQ (ABRTNR) ;Clear up RSB
JRST EXEARB] ;And abort
MOVE RSB,PRTRSB ;Restore port RSB
JRST CIPTR1 ;Go for next entry in loop
; Set structure exclusive.
CIPTR3: CALL SETEXC ;Try to set exclusive
JRST [CAIN T1,MSTX45 ;Is problem simply due to CFS?
JRST STREXC ;Yes, go try other
JRST EXEARB] ;Error abort
JRST CIPTR1 ;Everything OK. Continue loop
; End of loop, RSB must be that of port operation
; Here to reenter the loop
CIPTR9: CALL DDSCIH ;Go update things if needed
MOVE RSB,PRTRSB ;Get back the port RSB
JRST CIPTR0 ;Go back to the beginning of the loop
SUBTTL Process SET CI PORT UNAVAILABLE -- CIPTRE - Clean up and set port unavailable
CIPTRE: CALL SETPT ;Do diag
JRST [TMCT <%ICI Port unavailable operation unsuccessful%_DIAG%% failure%_%J>
JRST EXERRB] ;Go finish up as error
MOVEI T1,.DVPRT ;Get the port type
MOVEM T1,DSFE+DSFTYP ;Place it in the type word
HRRZ T1,RSBPRT(RSB) ;Get the channel number
MOVEM T1,DSFE+DSFSPC ;Place it in the spec. word
CALL DSFLOC ;Get the entry
CALL STOP ;Should not happen
MOVEI T2,1 ;Say unavailable due to port unavailabilty
STOR T2,DSF%PO,DSFE+DSFFLG ; store it
CALL DSFUDE ;Put it back on disk
$STOP <Previously legit DDB pointer failed to update entry correctly>
MOVEI T1,1 ;Get one
MOVEM T1,PORTST ;Set it
TMCT <%IPort set unavailable>
MOVEI T3,[ASCIZ/Port Unavailable Operation Completed/]
JRST EXNERB ;Go send the message and clean up
SUBTTL Process SET CI PORT UNAVAILABLE -- DISMNO - Dismount w/o OPR inquire
; This routine called from the unavailable loop will try to dismount the
; structure without operator intervention. It includes setting the disk drive
; unavailable, building an RSB for the dismount request if necessary,
; checking to see if dismount possible and doing so if so. If the
; structure is dismounted, then release RSB.
; Returns: +1 if not successful
; RSB / 0 if an error occurs that implies abort
; RSB / block for dismount request that needs to follow
; +2 if successful
DISMNO: CALL CIPTUN ;Set disk unav via port operation
MOVE T1,DSKFLG(DSK) ;Get status
TXNN T1,MS%MNT ;Is it mounted?
JRST DISM.9 ;No, go for successful return
; Get an RSB for the dismount request
MOVEI T1,.DSMST ;Set up a dismount request
CALL OPRSB##
JRST [TMCT <%IFailed to acquire RSB for dismount procedure>
JRST DISM.7] ;Return bad
; Complete building RSB for dismount request
MOVE T1,PRTRSB ;Get port RSB
MOVEM T1,RSBSUP(RSB) ;Save it in DSK RSB
MOVX T1,R%DSM ;Get dismount flag
IORM T1,RSBIFL(RSB) ;And set into rsb
SETZM RSBSTN(RSB) ;Zero structure name for matchs
MOVEI T1,RST.WM
STOR T1,RSBSTE ;Set state to waiting for dismount
MOVE T1,RSBSTA(RSB) ;Get structure alias
MOVE T2,RSBSTN(RSB) ;Get structure name
SETZ T4, ;No structure unique code
CALL MATCHS## ;Match request to structure
JRST DISM.8 ;No match, clean up RSB and return OK
; Should we do more for this error?
SKIPG STR ;Is structure mounted?
JRST DISM.8 ;No, clean up RSB and return OK
; Now do the dismount
STOR STR,RSBSS ;Store the structure addr into rsb
MOVEI T1,RSBSTA(RSB) ;Dismount it
MOVE T2,[POINT 7,MSTAL##]
CALL SIXSEV##
CALL STRSET## ;Set up for dismount
JRST [SKIPE LSTERR ;Something, any error?
JRST DISM.6 ;Yes, do the error processing
MOVE T1,PRTRSB ;No error, must think we need operator help
MOVE T1,RSBIFL(T1) ;Get the flags
TXNN T1,R%REP ;Is this a force?
RET ;No, just need operator help
JRST DISM.5] ;Yes, dismount anyway
DISM.5: CALL STRDMS## ;Dismount str without operator help
JRST DISM.6 ;Problem
JRST DISM.8 ;Success, go finish
DISM.6: CALL DISMER ;Generate dismount error message
DISM.7: SETZ RSB, ;Set the error
RET ;And return error
DISM.8: ABTREQ (ABRTNR) ;Mark RSB deleted for no reason
CALL PRQABT ;Get rid of this dismount RSB
DISM.9: RETSKP
SUBTTL Process SET CI PORT UNAVAILABLE -- DISMER - Generate dismount error message
DISMER: ABTREQ (LSTERR,ABT%IN) ;Didn't work, set error
MOVE T1,STRNAM(STR) ;Get the structure name
MOVE T2,STRALI(STR) ;Get the alias
TMCT <%IDismount structure failed during procedure%_>
TMCT <Problem with structure %1S: (Alias %2:)%_Error -%J%_%U>
CALL PRQABT ;Get rid of this dismount RSB
RET
SUBTTL Process SET CI PORT UNAVAILABLE -- DSMOPR - Dismount with OPR inquire
DSMOPR: MOVEI T1,DSMRPL ;Get end-action address
MOVE T2,STRALI(STR) ;Get alias
MOVE T3,STRNAM(STR) ;Get name
TMCTI <DSMHDR> ;Build message based on dismount header
JRST EXRSNR ;Send it and wait for reply
; Here on operator reply to dismount request
; Reentry point
DSMRPL: TXO F,PORTF ;Set we are in port operation
MOVEI RSB,-RSBWTB(T2) ;Load rsb ac
LOAD STR,RSBSS ;Get structure status block again
CALL PSDR## ;Parse operator response
JRST DSMOPR ;Bad response, try it again
JUMPE T1,DSMR.1 ;Skip this if yes
; Operator refuses to dismount
CALL STRREF ;Process refusal
CALL [ABTREQ(ABRTNR) ;Get rid of RSB
RET] ;Message already gen'd by STRREF
JRST EXOARB ;Exit with operator abort
; Operator ok'd dismount
DSMR.1: CALL STRDM2## ;Set str unavailable
SKIPA ;Can not set str unavailable
CALL STRDMS ;Go do the dismount
JRST [CALL DISMER ;Can't, go process error and clean things up
JRST EXEARB] ;Process the error and quit
ABTREQ(ABRTNR) ;Clear up RSB
CALL PRQABT ;And release
JRST CIPTR9 ;Go begin main loop again
SUBTTL Process SET CI PORT UNAVAILABLE -- CIPTDU - Dual ported disk process
; Disk is dual ported. Need to setup and ask the operator to set it single.
CIPTDU: HRRM DSK,RSBDSK(RSB) ;Save dsk/loop counter
MOVEI T1,.DSDUL ;Set up a switch request
CALL OPRSB##
JRST [TMCT <%IFailed to acquire RSB for dual port procedure>
JRST EXEARB] ;Error abort
MOVE T1,PRTRSB ;Get port RSB
MOVEM T1,RSBSUP(RSB) ;Save it in switch RSB
CIPTD0: TMCT <%I> ;Initialize the message
CIPTD1: CALL STDUMS ;Set up the meesage to be asked
MOVEI T1,CIPTD2 ;Address of reply
JRST EXRSNR ;Go send message and wait for reply
; Here when the operator has responded. Check his answer.
; Reentry point
CIPTD2: TXO F,PORTF ;Set port function flag
MOVEI RSB,-RSBWTB(T2) ;Load RSB ac
CALL PPTRR ;Parse answer
JRST CIPTD0 ;Error, try again
MOVE T2,PRTRSB ;Get address of port RSB
HRRZ DSK,RSBDSK(T2) ;Get DSB address
JUMPE T1,[MOVE T2,DSKFLG(DSK) ;Get status of disk
TXNN T2,MS%2PT ;Is operator fibbing, still dual ported?
JRST CIPTD3 ;No, continue on
TMCT <%IDisk drive not correctly ported.%_>
JRST CIPTD1] ;Go try again
CIPTD3: JRST CLNREQ ;Go clean up the request
SUBTTL Process SET CI PORT UNAVAILABLE -- CLNREQ - Clean up request after checking OPR reply
; This routine is JRSTed to by either the dual ported code or by structure
; exclusive code. It cleans up the RSB. If it was proceed, it was OK
; (assumed to be so to come here) and returns to the loop. If it was abort,
; it goes to the operator abort code. If it was force, it then tries to
; dismount the structure.
; Accepts: T1 / Result from PPTRR
; Returns: Either jumps back to beginning of loop or aborts due to error
CLNREQ: PUSH P,T1 ;Save the result of PPTRR for a min
ABTREQ(ABRTNR) ;Get rid of RSB
CALL PRQABT ;Clear up RSB
POP P,T1 ;Get back result
JUMPE T1,CLNRE9 ;Go back and proceed OK if operator did OK
JUMPL T1,EXOARB ;Abort if operator did that
; Here if force. Do dismount if needed and set unavailable
CALL DISMNO ;Try for the dismount
SKIPA ;If bad
JRST CLNRE9 ;Skip following if dismount ok
SKIPN RSB ;Do we have RSB?
JRST EXEARB ;No, trouble in river city. Abort
CALL STRDMS ;Do the dismount ignoring opr help
JRST [CALL DISMER ;Still trouble
JRST EXEARB] ;Error abort
CLNRE9: JRST CIPTR9 ;Go back to the loop
SUBTTL Process SET CI PORT UNAVAILABLE -- STDUMS - Setup message to resolve dual port
; Accepts - DSK / disk status block address
STDUMS: TMCT <The following dual ported disk drive must be resolved
to continue SET PORT CI UNAVAILABLE:%_>
MOVEI T1,DSKHDR## ;Get the header
TMCT <%1A>
SETZM DSPFLG ;Clear the display flag
MOVE T1,DSKFLG(DSK) ;Get the status of the disk
TXNN T1,MS%MNT ;Is there a structure mounted on this disk?
JRST [CALL WOFRE## ;No, print the unit
JRST STDUM1]
CALL WOMNT## ;Print the unit
STDUM1: CALL DSKDSP ;Print any special messages
TMCT <%_After the dual ported disk has been resolved
Type 'RESPOND <number> option' where 'option' is one of the following:%_
%5CABORT To cancel Port Unavailable Procedure.
%5CPROCEED The drive has been single ported to this system.
%5CFORCE To proceed and ignore the porting of this drive.
%5C The drive will be set unavailable.>
RET
SUBTTL Process SET CI PORT UNAVAILABLE -- STREXC - Set structure exclusive with OPR help
COMMENT %
if error to MSTR is not due to CFS then abort port request
otherwise do the same as the dual port code to get operator response.
%
STREXC: HRRM DSK,RSBDSK(RSB) ;Save DSK
MOVEI T1,.DSEXC ;Set up exclusive switch request
CALL OPRSB ;Get RSB
JRST [TMCT <%IFailed to acquire RSB for exclusive procedure>
JRST EXEARB] ;Error abort
MOVE T1,PRTRSB ;Get port RSB
MOVEM T1,RSBSUP(RSB) ;Save it in exclusive RSB
STREX1: MOVE T1,STRALI(STR) ;Get alias
TMCT <%IStructure %1S cannot be set exclusive to this system.
After this structure is dismounted from all other systems
Type 'RESPOND <number> option' where 'option' is one of the following:%_
%5CABORT To cancel Port Unavailable Procedure.
%5CPROCEED The structure can now be set exclusive to this system.
%5CFORCE To proceed, ignoring exclusive problem.
%5C The structure will be dismounted.>
MOVEI T1,STREXR ;Get return address
JRST EXRSNR ;Go send message and wait for reply
; The operator has responded. Check answer.
; Reentry point
STREXR: TXO F,PORTF ;Set in port function flag
MOVEI RSB,-RSBWTB(T2) ;Load RSB ac
CALL PPTRR ;Parse answer
JRST STREX1 ;Bad answer, go try again
SKIPE T1 ;Proceed?
JRST CLNREQ ;No, go clean up request
CALL SETEXC ;Try to set exclusive
SKIPA ;Can't, skip good return
JRST [SETZ T1, ;Set back as proceed
JRST CLNREQ] ;Go clean up request
CAIN T1,MSTX45 ;Is another system still using it?
JRST STREX1 ;Yes, operator goofed. Try again
ABTREQ(ABRTNR) ;Problem can't handle
CALL PRQABT ;Clear up RSB
JRST EXEARB ;Error abort
SUBTTL Process SET CI PORT UNAVAILABLE -- SETEXC - Set structure exclusive if necessary
; If successful, it will tell the operator. If not, it returns
; the error code in T1.
; Accepts: DSK / Address of DSB
; Returns: +1 on failure
; STR / Address of SSB
; T1 / Error code (MSTX45 if due to CFS problem)
; +2 if successful
SETEXC: MOVE T1,DSKFLG(DSK) ;Get status
TXNN T1,MS%MNT ;Disk part of a mounted structure?
JRST SETEX9 ;No, done with this one
LOAD STR,DSKSSA,(DSK) ;Get address of SSB
SKIPN STR ;Is it legit?
$STOP <Detected mounted disk with bad SSB pointer>
MOVE T2,STRFL1(STR) ;Get flags
TXOE T2,STR%EP ;Already exclusive due to PO?
JRST SETEX9 ;Yes, done with this one
MOVE T1,STRFLG(STR) ;Get structure flags
TXNE T1,MS%EXC ;Already set exclusive?
JRST SETEX8 ;Yes, go clean up setting bit
MOVEI T1,STRALI(STR) ;Get address of alias
MOVE T2,[POINT 7,MSTAL] ;Destination of ascii alias
CALL SIXSEV ;Translate it
MOVE T3,[POINT 7,MSTAL] ;Need pointer again
MOVX T4,MS%EXC ;Exclusive
MOVE T1,[2,,.MSCSM] ;length 2,,function
MOVEI T2,T3 ;Set up arg block address
MSTR ;Try to set exclusive
ERJMP [MOVEI T1,.FHSLF ;Didn't work, get self
GETER ;Get last error
HRRZ T1,T2 ;Get just error
CAIN T1,MSTX45 ;CFS error?
RET ;Yes, just return
MOVE T2,STRALI(STR) ;Error, get structure name
TMCT <%IStructure exclusive failed during procedure%_>
TMCT <Problem with structure %2S:%_Error -%1J%_%U>
RET] ;Return with error
SETEX8: SETONE STR%EP,STRFL1(STR) ;Set structure exclusive due to port op.
MOVE T1,STRALI(STR) ;Get structure name
TMCT <%IStructure %1S set exclusive due to port unavailable operation>
MOVEI T3,UNLNOT ;Get header
CALL BTWTO ;Send message
SETEX9: RETSKP ;And return good
SUBTTL CIPTUN - Set disk DDB entry to indicate port operation
CIPTUN: MOVE T1,DSKPNT(DSK) ;Get pointer to DDB entry
CALL DSFGET ;Get the entry
CALL STOP ;Should not happen!
MOVEI T2,1 ;Set the bit
STOR T2,DSF%PO,DSFE+DSFFLG ;Store it
CALL DSFUDE ;Update entry
CALL STOP ;Should not happen
MOVEI Q1,1 ;Say unavailable
MOVE Q2,DSKCKU(DSK) ;Get CKU
CALLRET WOMDAV## ;Tell operator
SUBTTL PPTRR - Parse OPR response to query
; Parse operator response to querry about type of procedure for
; to be used when setting port unavailable.
; Returns - T1 / -1=Abort 0=Proceed 1=Force
PPTRR: CALL COMNDI## ;Initialize for COMND jsys
MOVEI T2,[FLDDB. .CMKEY,,PPTRKS] ;Setup keyword parse
CALL COMNDX## ;Parse keyword
JRST [ MOVEI T1,[ASCIZ/Response must be ABORT, CONT, or FORCE/]
CALLRET RSPERR##] ;Incorrect response, give error
HRRZ T2,(T2) ;Get address of keyword processr
CALLRET (T2) ;Dispatch
PPTRKS:: PTRKSE,,PTRKSE
[ASCIZ/ABORT/],,PPTABT
[ASCIZ/FORCE/],,PPTFOR
[ASCIZ/PROCEED/],,PPTPRO
PTRKSE==.-PPTRKS-1
;PPTABT - Operator has changed mind. Abort the request.
;
PPTABT: SETO T1, ;Set to indicate abortion
RETSKP
;PPTPRO - Operator wishes to continue, but with caution
;
PPTPRO: SETZ T1, ;Set to indicate proceed
RETSKP
;PPTFOR - Operator wishes to continue, but without caution.
;
PPTFOR: MOVX T1,R%REP ;Get the reply bit
IORM T1,RSBIFL(RSB) ;Say it is FORCE
MOVEI T1,1 ;Return force
RETSKP
SUBTTL Channel Routines
;KSCH - Set up message with list of structures lost if port set unavailable
;
;Accepts: RSB of port operation
;
KSCH: SETZM ANY ;Mark a variable to indicate none
SETZM DSPFLG ;Clear the display flag
HRRZ T2,RSBPRT(RSB) ;Get channel number of request
TMCT <%ISetting CI Port %2O UNAVAILABLE.%_%_>
MOVEI T1,.DVDSK ;Get the disk type
MOVEM T1,DSFE+DSFTYP ;Save it
SETZ T1, ;Say we have no entries
KSCHLP: CALL DSFGNX ;Get the disk entry for DDB
JRST KSCHEN ;All done
PUSH P,T1 ;Save the pointer
SKIPN DSK,DSFE+DSFPNT ;Do we have a DSK?
JRST KSCH1 ;No get the next
MOVE T1,DSKFLG(DSK) ;Get status
TXNN T1,MS%MNT ;Is it mounted
JRST KSCH1 ;No, get next
HRRZ T2,RSBPRT(RSB) ;Get channel number of request
LDB T3,[POINT 12,DSKCKU(DSK),11] ;Get channel number
CAMN T3,T2 ;Is it the requested channel
JRST KSCH2 ;Yes, inform operator
SKIPN CFSB ;Are we a CFS system?
JRST KSCH1 ;No, get next
TXNN T1,MS%2PT ;Are we dual ported?
JRST KSCH1 ;NO, get next
KSCH2: SKIPN ANY ;First one?
JRST [TMCT <The following structure(s) need to be dismounted or removed.%_>
SETOM ANY ;We have at least one
MOVEI T2,DSKHDR## ;Get header for mounted drives
TMCT <%2A> ;and format the header.
JRST .+1]
TXNE T1,MS%MNT ;Is there a structure mounted on this structure
JRST [CALL WOMNT## ;Yes, print disk entry
JRST KSCH1]
CALL WOFRE## ;No, print the disk entry
KSCH1: MOVEI T1,.DVDSK ;Get the type
MOVEM T1,DSFE+DSFTYP ;Save it
POP P,T1 ;Get the pointer back
JRST KSCHLP ;Get next dsk
KSCHEN: SKIPN ANY ;Are there disks affected by ci removal
JRST [TMCT <%_There are no structures currently affected %
By setting the port unavailable.%_>
JRST .+1]
CALL DSKDSP ;Print any special messages
TMCT <%_Type 'RESPOND <number> option' where 'option' is one of the following:%_
%5CABORT To cancel Port Unavailable Procedure.
%5CPROCEED To follow normal port unavailable procedure verifying
%5C each structure change.
%5CFORCE To proceed with no further notification.
%5C Use this option with extreme caution.>
RET
SUBTTL DIAG% Routines
;SETPT - Enable/Disable Port
;Accepts: RSB of Port Operation
SETPT: MOVE T1,[-3,,DIAGBK] ;Size ,, block address
MOVEI T2,.DGENB ;Get function number
MOVEM T2,DIAGBK ;Store it in block
HRRZ T2,RSBPRT(RSB) ;Get channel number
MOVEM T2,DIAGBK+1 ;Store it in block
SETZM DIAGBK+2 ;Assume setting disable
HLL T2,RSBPRT(RSB) ;Get flags
TXNN T2,DV.UAV ;Do we really want to disable?
AOS DIAGBK+2 ;No, enable.
SKIPE TSTF## ;Are we testing?
JRST SETPFP ;Yes, then don't do diag.
DIAG
ERJMPR [RET] ;Return
RETSKP
SETPFP: TMCT <%IDIAG%% would happen here in a non-testing environment.>
MOVEI T3,[ASCIZ/Function Prohibited In Private Galaxy/]
CALL BTACKT
HLL T2,RSBPRT(RSB) ;Get flags
RETSKP
SUBTTL Common File System Support -- CFSCHK - Check to see whether CFS system
; Returns: +1 if not been connected in CFS configuration
; +2 if another CFS node has been found
CFSCHK:: MOVEI T1,.CFCIN ;Want to get CFS information
MOVEI T2,.CFCDO+1 ;Length of block
MOVEM T2,CNFBLK+.CFLEN ;Save it
MOVEI T2,CNFBLK ;Get address of argument block
CNFIG% ;Get configuration info
ERJMP [RET] ;And return no CFS
MOVE T1,CNFBLK+.CFCDO ;Get the bits
TXNN T1,CF%CFR ;Have we met another system?
RET ;No, no CFS
RETSKP ;Yes, CFS
END