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10,7/703mon/ethser.mac
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TITLE ETHSER - ETHERNET SERVICE ROUTINES V30
SUBTTL WILLIAM C. DAVENPORT/WXD 19-NOV-85
SEARCH F,S,MACSYM,ETHPRM
T20SYM
$RELOC
$HIGH
;
; H H H H
; | | | |
; H -- C -- C -- O -- C -- C -- H
; | | | |
; H H H H
;
; ETHER, THE CODE THAT PUTS YOU TO SLEEP.
;THIS MODULE IMPLEMENTS A DEVICE INDEPENDENT INTERFACE TO ETHERNET
;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY ONLY BE USED
; OR COPIED IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.
.CPYRT<1985,1986>
;COPYRIGHT (C) 1985,1986 BY
;DIGITAL EQUIPMENT CORPORATION, MAYNARD, MASS.
;ALL RIGHTS RESERVED.
XP VETHSR,30 ;ETHSER VERSION NUMBER
ENTRY ETHSER ;LOAD IF LIBRARY SEARCH
;LOOSE ENDS:
; MULTI-CHANNEL ETHERNET SUPPORT
; DYNAMIC KONTROLLER CONFIGURATION
SUBTTL TABLE OF CONTENTS
; TABLE OF CONTENTS FOR ETHSER
;
;
; SECTION PAGE
; 1. TABLE OF CONTENTS......................................... 2
; 2. ETHERNET SERVICE
; 2.1 INITIALIZATION.................................... 3
; 2.2 ONCE A SECOND CODE................................ 4
; 2.3 ETHERNET CHANNEL ONCE A SECOND CODE............... 5
; 2.4 ETHERNET PORTAL ONCE A SECOND CODE................ 6
; 2.5 ETHERNET KONTROLLER ONCE A SECOND CODE............ 7
; 3. ETHERNET USER SERVICE
; 3.1 FUNCTION DISPATCH................................. 8
; 3.2 OPEN PORTAL FUNCTION.............................. 13
; 3.3 CLOSE PORTAL FUNCTION............................. 15
; 3.4 RECEIVE DATAGRAM FUNCTION......................... 16
; 3.5 TRANSMIT DATAGRAM FUNCTION........................ 18
; 3.6 ENABLE MULTI-CAST ADDRESS FUNCTION................ 20
; 3.7 DISABLE MULTI-CAST ADDRESS FUNCTION............... 21
; 3.8 READ CHANNEL LIST FUNCTION........................ 22
; 3.9 READ CHANNEL INFORMATION FUNCTION................. 23
; 3.10 READ CHANNEL COUNTERS FUNCTION.................... 24
; 3.11 SET CHANNEL ADDRESS FUNCTION...................... 27
; 3.12 READ PORTAL LIST FUNCTION......................... 29
; 3.13 READ PORTAL INFORMATION FUNCTION.................. 30
; 3.14 READ PORTAL COUNTERS FUNCTION..................... 31
; 3.15 READ KONTROLLER LIST.............................. 33
; 3.16 READ KONTROLLER INFORMATION....................... 34
; 3.17 READ KONTROLLER COUNTERS.......................... 35
; 3.18 READ ETHERNET LIST................................ 38
; 3.19 READ ETHERNET INFORMATION......................... 39
; 3.20 REPORT PORTAL STATUS CHANGE....................... 40
; 3.21 CALL PORTAL USER.................................. 41
; 3.22 GENERATE AN EA BLOCK.............................. 42
; 3.23 RELEASE EA BLOCK.................................. 43
; 3.24 CALL ETHERNET KONTROLLER.......................... 44
; 4. ETHERNET CHANNEL SUPPORT
; 4.1 CREATE ETHERNET CHANNEL BLOCK..................... 45
; 4.2 GENERATE CHANNEL STATUS WORD...................... 46
; 4.3 FIND ETHERNET CHANNEL BLOCK....................... 47
; 5. ETHERNET PORTAL SUPPORT
; 5.1 GENERATE ETHERNET PORTAL ID....................... 48
; 5.2 GENERATE PORTAL STATUS WORD....................... 49
; 5.3 FIND ETHERNET PORTAL BLOCK........................ 50
; 5.4 ADD ETHERNET PORTAL BLOCK......................... 51
; 5.5 DELETE ETHERNET PORTAL BLOCK...................... 52
; 5.6 FIND MULTI-CAST ADDRESS........................... 53
; 5.7 ADD MULTI-CAST ADDRESS............................ 54
; 5.8 DELETE MULTI-CAST ADDRESS......................... 55
; 5.9 ENABLE PROTOCOL................................... 56
; 5.10 DISABLE PROTOCOL.................................. 59
; 5.11 PROTOCOL STATE TRANSTITION........................ 62
; 6. ETHERNET KONTROLLER SUPPORT
; 6.1 CREATE KONTROLLER BLOCK........................... 63
; 6.2 GENERATE KONTROLLER STATUS WORD................... 64
; 6.3 SELECT AN ETHERNET KONTROLLER..................... 65
; 6.4 FIND ETHERNET KONTROLLER BLOCK.................... 66
; 6.5 ADD ETHERNET KONTROLLER BLOCK..................... 67
; 7. ETHERNET INTERRUPT SERVICE
; 7.1 KONTROLLER INITIALIZATION......................... 68
; 7.2 KONTROLLER OFFLINE................................ 69
; 7.3 KONTROLLER ONLINE................................. 70
; 7.4 KONTROLLER FUNCTION DONE.......................... 71
; 8. ETHERNET SUPPORT
; 8.1 UPDATE ETHERNET COUNTERS.......................... 72
; 8.2 GENERATE TWO WORD GLOBAL BYTE POINTER............. 73
; 9. BYTE POINTERS............................................. 74
; 10. ETHERNET INFORMATION GETTAB TABLE......................... 75
; 11. THE END................................................... 76
SUBTTL ETHERNET SERVICE -- INITIALIZATION
;ROUTINE CALLED TO INITIALIZE ETHERNET SERVICE
;LINKAGE: (CALLED FROM SYSINI)
; PUSHJ P,ETHINI
;RETURNS:
; CPOPJ ALWAYS
ETHINI::SKIPE %EICHN ;SYSTEM RESTART?
POPJ P, ;YES, RETURN
PUSHJ P,SAVQ1## ;SAVE Q1
SE1ENT ;RUN IN SECTION 1
PUSHJ P,GENECB ;CREATE AN ETHERNET CHANNEL BLOCK
POPJ P, ;ERROR, RETURN
MOVX T1,ECSONL ;MARK CHANNEL AS ONLINE
IORM T1,ECBSTS(Q1) ;...
IFN FTDECNET,< ;IF DECNET SUPPORT
SKIPN [M.DECN##] ;IS DECNET LOADED?
JRST ETHIN1 ;NO, DON'T PRESET ETHERNET ADDRESS
MOVE T1,RTRHIO## ;GET HIGH ORDER DECNET ETHERNET ADDRESS
SETZ T2, ;CLEAR LOW ORDER ETHERNET ADDRESS
MOVE T3,RTRHOM## ;GET OUR DECNET AREA NUMBER
LSH T3,^D10 ;POSITION CORRECTLY
IOR T3,RTRADR## ;COMBINE WITH OUR DECNET NODE ADDRESS
ROTC T2,-^D8 ;GET LOW ORDER BYTE OF DECNET ADDRESS
DPB T3,[POINT 8,T2,15] ;AND INCLUDE HIGH ORDER BYTE OF ADDRESS
DMOVEM T1,ECBEAD(Q1) ;SAVE AS CHANNEL'S ETHERNET ADDRESS
ETHIN1:
>; END IFN FTDECNET
POPJ P, ;AND RETURN
SUBTTL ETHERNET SERVICE -- ONCE A SECOND CODE
;ROUTINE CALLED ONCE A SECOND BY CLOCK1
;LINKAGE:
; PUSHJ P,ETHSEC
;RETURNS:
; CPOPJ ALWAYS
ETHSEC::
IFN FTMP,<
SKPCPU (0) ;ARE WE ON POLICY CPU?
POPJ P, ;NO, RETURN
>; END IFN FTMP
PUSHJ P,SAVQ1## ;SAVE Q1
SE1ENT ;RUN IN SECTION 1
SKIPA Q1,%EICHN ;GET ADDRESS OF FIRST CHANNEL BLOCK
ETHSE1: MOVE Q1,ECBSYS(Q1) ;GET ADDRESS OF NEXT CHANNEL BLOCK
PJUMPE Q1,CPOPJ## ;IF END OF LIST, RETURN
PUSHJ P,ECBSEC ;DO CHANNEL ONCE A SECOND PROCESSING
JRST ETHSE1 ;LOOP BACK FOR ALL CHANNELS
SUBTTL ETHERNET SERVICE -- ETHERNET CHANNEL ONCE A SECOND CODE
;ROUTINE CALLED ONCE A SECOND FOR EACH ETHERNET CHANNEL
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; PUSHJ P,ECBSEC
;RETURNS:
; CPOPJ ALWAYS
ECBSEC: PUSHJ P,SAVQ## ;SAVE Q1-Q3
AOS ECBCTR+CC.SLZ(Q1) ;UPDATE SECONDS SINCE COUNTERS LAST ZEROED
SKIPA Q2,ECBEPB(Q1) ;GET ADDRESS OF FIRST PORTAL BLOCK
ECBSE1: MOVE Q2,EPBNXT(Q2) ;GET ADDRESS OF NEXT PORTAL BLOCK
JUMPE Q2,ECBSE2 ;IF END OF LIST, GO DO KONTROLLERS
MOVE Q3,EPBEKB(Q2) ;GET ADDRESS OF ASSIGNED KONTROLLER BLOCK
PUSHJ P,EPBSEC ;DO PORTAL ONCE A SECOND PROCESSING
JRST ECBSE1 ;LOOP BACK FOR ALL PORTALS
ECBSE2: SKIPA Q3,ECBEKB(Q1) ;GET ADDRESS OF FIRST KONTROLLER BLOCK
ECBSE3: MOVE Q3,EKBNXT(Q3) ;GET ADDRESS OF NEXT KONTROLLER BLOCK
PJUMPE Q3,CPOPJ## ;RETURN AT END OF LIST
PUSHJ P,EKBSEC ;DO KONTROLLER ONCE A SECOND PROCESSING
JRST ECBSE3 ;LOOP BACK FOR ALL KONTROLLERS
SUBTTL ETHERNET SERVICE -- ETHERNET PORTAL ONCE A SECOND CODE
;ROUTINE CALLED ONCE A SECOND FOR EACH ETHERNET PORTAL ON A CHANNEL
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,EPBSEC
;RETURNS:
; CPOPJ ALWAYS
EPBSEC: AOS EPBCTR+PC.SLZ(Q2) ;UPDATE SECONDS SINCE COUNTERS LAST ZEROED
LDB T1,EPPSTS ;GET CURRENT PROTOCOL STATE
MOVE T1,EPBTBL(T1) ;GET ADDRESS OF DISPATCH ROUTINE
PJRST (T1) ;DISPATCH BASED ON PROTOCOL STATE
;ONCE A SECOND DISPATCH TABLE BASED ON PROTOCOL STATE
EPBTBL: IFIW CPOPJ## ;(0) DISABLED
IFIW ETHEPT ;(1) DISABLED, WANT TO ENABLE
IFIW CPOPJ## ;(2) ENABLE IN PROGRESS
IFIW CPOPJ## ;(3) ENABLE IN PROGRESS, WANT TO DISABLE
IFIW CPOPJ## ;(4) ENABLED
IFIW ETHDPT ;(5) ENABLED, WANT TO DISABLE
IFIW CPOPJ## ;(6) DISABLE IN PROGRESS
SUBTTL ETHERNET SERVICE -- ETHERNET KONTROLLER ONCE A SECOND CODE
;ROUTINE CALLED ONCE A SECOND FOR EACH ETHERNET KONTROLLER ON A CHANNEL
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,EKBSEC
;RETURNS:
; CPOPJ ALWAYS
EKBSEC: AOS EKBCTR+KC.SLZ(Q3) ;UPDATE SECONDS SINCE COUNTERS LAST ZEROED
MOVX T1,EKSSEA ;NEED TO SET ETHERNET ADDRESS?
TDNN T1,EKBSTS(Q3) ;...
POPJ P, ;NO, RETURN
ANDCAM T1,EKBSTS(Q3) ;YES, CLEAR FLAG, WILL GET RESET IF NEEDED
PUSHJ P,SAVP3## ;SAVE P3
MOVEI T1,EK.SEA ;FUNCTION SET ETHERNET ADDRESS
PUSHJ P,GENEAB ;GENERATE AN EA BLOCK
PJRST EKBSCX ;GO RESET CLOCK LEVEL FLAGS AND RETURN
DMOVE T1,ECBEAD(Q1) ;GET CHANNEL'S ETHERNET ADDRESS
DMOVEM T1,.EAEAD(P3) ;STORE IN EA BLOCK
XMOVEI T1,ETCSCA ;GET ADDRESS OF COMPLETION ROUTINE
PUSHJ P,CALKON ;CALL KONTROLLER
JRST [PUSHJ P,GIVEAB ;ERROR, RELEASE EA BLOCK
PJRST EKBSCX] ;GO RESET CLOCK LEVEL FLAGS AND RETURN
POPJ P, ;RETURN
EKBSCX: MOVX T1,EKSSEA ;FLAG SET ETHERNET ADDRESS FUNCTION
IORM T1,EKBSTS(Q3) ;...
POPJ P, ;RETURN
SUBTTL ETHERNET USER SERVICE -- FUNCTION DISPATCH
;ROUTINE CALLED TO INTERFACE TO ETHERNET
;LINKAGE:
; T1/ FUNCTION CODE (NU.XXX)
; T2/ ADDRESS OF UN BLOCK
; PUSHJ P,ETHSER
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
DLLUNI::! ;TOPS-20 NAME FOR THIS
ETHSER::SKIPLE T1 ;RANGE CHECK FUNCTION CODE
CAILE T1,NU.MAX ;...
STOPCD [ERRRET (UNIFC%)],DEBUG,ETHIFC ;++INVALID FUNCTION CODE
PUSHJ P,SAVE4## ;SAVE P1-P4
PUSHJ P,SAVQ## ;AND Q1-Q3
SE1ENT ;RUN IN SECTION 1
MOVE P1,T1 ;SAVE FUNCTION CODE
MOVE P4,T2 ;AND ADDRESS OF UN BLOCK
MOVE P2,ETHDSF(P1) ;GET FUNCTION SPECIFIC FLAGS
TXNN P2,DF.PID ;VALID PORTAL ID REQUIRED?
JRST ETHSR1 ;NO, SKIP CHECK
LOAD T1,UNPID,(P4) ;GET PORTAL ID FROM UN BLOCK
PUSHJ P,FNDEPB ;FIND ETHERNET PORTAL BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
MOVX T1,EPSOPN ;GET PORTAL OPEN FLAG
TXNE P2,DF.OPN ;IS PORTAL REQUIRED TO BE OPEN?
TDNE T1,EPBSTS(Q2) ;YES, IS PORTAL CURRENTLY OPEN?
SKIPA ;YES, CONTINUE
ERRRET (UNPWS%) ;NO, PORTAL IS IN WRONG STATE
MOVE T1,EPBPTY(Q2) ;GET PROTOCOL TYPE CODE
CAXN T1,PT%INF ;IS THIS AN INFORMATION ONLY PORTAL?
TXNN P2,DF.NIP ;YES, VALID FUNCTION FOR INFORMATION PORTALS?
SKIPA ;YES, CONTINUE
ERRRET (UNIFC%) ;NO, INVALID FUNCTION FOR PORTAL
LDB T1,EPPSTS ;GET CURRENT PROTOCOL STATE
CAIE T1,.PSENA ;IS PROTOCOL ENABLED?
TXNN P2,DF.ENA ;NO, IS IT REQUIRED TO BE ENABLED?
SKIPA ;EITHER ENABLED, OR NOT REQUIRED TO BE
ERRRET (UNPWS%) ;YES, PORTAL IS IN WRONG STATE
;CONTINUED ON NEXT PAGE
;CONTINUED FROM PREVIOUS PAGE
ETHSR1: MOVE T1,ETHDSP(P1) ;GET ADDRESS OF FUNCTION SPECIFIC ROUTINE
PUSHJ P,(T1) ;CALL FUNCTION SPECIFIC ROUTINE
POPJ P, ;ERROR, ERROR CODE IN T1
CAIE P1,NU.OPN ;AN OPEN PORTAL FUNCTION?
TXNE P2,DF.PID ;NO, DID FUNCTION REQUIRE A PORTAL BLOCK?
SKIPA ;YES, UPDATE PORTAL RUN FLAG
PJRST CPOPJ1## ;NO, JUST RETURN
CAIN P1,NU.CLO ;CLOSE PORTAL FUNCTION?
SKIPA T1,[.PSDIS] ;YES, GET DISABLED PROTOCOL STATE
LDB T1,EPPSTS ;GET CURRENT PROTOCOL STATE
CAIE T1,.PSENA ;IS PROTOCOL ENABLED?
TDZA T1,T1 ;NO, CLEAR RUN FLAG
MOVEI T1,1 ;YES, SET RUN FLAG
STOR T1,UNRUN,(P4) ;STORE RUN FLAG
PJRST CPOPJ1## ;AND RETURN
;GENERIC ERROR RETURN WHICH RELEASES EA BLOCKS
ETHSRX: PUSH P,T1 ;SAVE ERROR CODE
PUSHJ P,GIVEAB ;RELEASE EA BLOCK
PJRST TPOPJ## ;RESTORE ERROR CODE AND RETURN
;ETHERNET FUNCTION DISPATCH TABLES
DEFINE FNC,<
XALL ;;LIST GENERATED TABLE
DISP 0, 0, ETHIFC ;;PLACE HOLDER
DISP 0, NU.OPN, ETHOPN ;;OPEN PORTAL
DISP DF.PID!DF.OPN, NU.CLO, ETHCLO ;;CLOSE PORTAL
DISP DF.PID!DF.OPN!DF.ENA!DF.NIP, NU.RCV, ETHRDG ;;RECEIVE DATAGRAM
DISP DF.PID!DF.OPN!DF.ENA!DF.NIP, NU.XMT, ETHXDG ;;TRANSMIT DATAGRAM
DISP DF.PID!DF.OPN!DF.NIP, NU.EMA, ETHEMA ;;ENABLE MULTI-CAST
DISP DF.PID!DF.OPN!DF.NIP, NU.DMA, ETHDMA ;;DISABLE MULTI-CAST
DISP 0, NU.RCL, ETHRCL ;;READ CHANNEL LIST
DISP 0, NU.RCI, ETHRCI ;;READ CHANNEL INFO
DISP DF.PID, NU.RCC, ETHRCC ;;READ CHANNEL COUNTERS
DISP 0, NU.SCA, ETHSCA ;;SET CHANNEL ADDRESS
DISP 0, NU.RPL, ETHRPL ;;READ PORTAL LIST
DISP 0, NU.RPI, ETHRPI ;;READ PORTAL INFO
DISP DF.PID, NU.RPC, ETHRPC ;;READ PORTAL COUNTERS
DISP 0, NU.RKL, ETHRKL ;;READ KONTROLLER LIST
DISP 0, NU.RKI, ETHRKI ;;READ KONTROLLER INFO
DISP DF.PID, NU.RKC, ETHRKC ;;READ KONTROLLER COUNTERS
SALL ;;TURN LISTING BACK OFF
>; END DEFINE FNC
;GENERATE FUNCTION FLAGS TABLE
DF.CID==400000,,000000 ;REQUIRE VALID CHANNEL ID
DF.PID==200000,,000000 ;REQUIRE VALID PORTAL ID
DF.KID==100000,,000000 ;REQUIRE VALID KONTROLLER ID
DF.OPN==040000,,000000 ;REQUIRE PORTAL TO BE OPEN
DF.ENA==020000,,000000 ;REQUIRE PORTAL TO BE ENABLED
DF.NIP==010000,,000000 ;NOT VALID FOR INFORMATION ONLY PORTALS
DEFINE DISP(FLAG,CODE,ADDR),<
FLAG ;CODE
>; END DEFINE DISP
ETHDSF: FNC ;GENERATE FUNCTION FLAGS TABLE
;GENERATE FUNCTION DISPATCH TABLE
DEFINE DISP(FLAG,CODE,ADDR),<
IF1,<IFN <CODE-<.-ETHDSP>>,<PRINTX ?Table ETHDSP entry CODE is out of order>>
IFIW ADDR ;CODE
>; END DEFINE DISP
ETHDSP: FNC ;GENERATE FUNCTION DISPATCH TABLE
IF1,<IFN <NU.MAX-<.-ETHDSP-1>>,<PRINTX ?Table ETHDSP is missing entries>>
SUBTTL ETHERNET USER SERVICE -- OPEN PORTAL FUNCTION
;HERE TO PROCESS AN OPEN PORTAL CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; PUSHJ P,ETHOPN
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHOPN: MOVEI T2,EPBLEN ;GET LENGTH OF PORTAL BLOCK
PUSHJ P,GETEWZ## ;ALLOCATE ZEROED CORE FOR PORTAL BLOCK
STOPCD [ERRRET (UNRES%)],DEBUG,ETHCCP ;++CAN'T CREATE PORTAL BLOCK
MOVE Q2,T1 ;SAVE ADDRESS IN Q2
LOAD T1,UNJCH,(P4) ;GET JCH OF PORTAL OWNER
MOVEM T1,EPBJCH(Q2) ;SAVE IN PORTAL BLOCK
LOAD T1,UNUID,(P4) ;GET CALLBACK ID
MOVEM T1,EPBCBI(Q2) ;SAVE IN PORTAL BLOCK
LOAD T1,UNCBA,(P4) ;GET CALLBACK ADDRESS
MOVEM T1,EPBCBA(Q2) ;SAVE IN PORTAL BLOCK
LOADE T1,UNPRO,(P4) ;GET REQUESTED PROTOCOL TYPE CODE
MOVEM T1,EPBPTY(Q2) ;STORE IN PORTAL BLOCK
JUMPL T1,ETHOPP ;JUMP IF PSEUDO-PROTOCOL TYPE
LOAD T1,UNPAD,(P4) ;GET PROTOCOL PADDING FLAG
DPB T1,EPPPAD ;STORE IN PORTAL BLOCK
SETZM T1,EPBCTR+PC.SLZ(Q2) ;CLEAR SECONDS SINCE COUNTERS LAST ZEROED
MOVX T1,EPSOPN ;MARK PORTAL AS CURRENTLY OPEN
IORM T1,EPBSTS(Q2) ;...
MOVEI T1,.PSDIS ;AND PROTOCOL AS DISABLED
DPB T1,EPPSTS ;...
LOAD T1,UNCHN,(P4) ;GET CHANNEL ID
PUSHJ P,FNDECB ;FIND ETHERNET CHANNEL BLOCK
JRST ETHOPX ;ERROR, ERROR CODE IN T1
PUSHJ P,GENPID ;GENERATE PORTAL ID
MOVEM T1,EPBPID(Q2) ;STORE IN PORTAL BLOCK
STOR T1,UNPID,(P4) ;ALSO STORE INTO UN BLOCK
PUSHJ P,ADDEPB ;ADD PORTAL TO ETHERNET CHANNEL
JRST ETHOPX ;ERROR, ERROR CODE IN T1
PUSHJ P,ETHEPT ;INITIATE ENABLE OF PROTOCOL
PJRST CPOPJ1## ;AND RETURN
ETHOPX: PUSH P,T1 ;SAVE ERROR CODE
MOVEI T1,EPBLEN ;GET LENGTH OF PORTAL BLOCK
MOVE T2,Q2 ;AND ADDRESS OF PORTAL BLOCK
PUSHJ P,GIVEWS## ;RELEASE CORE
PJRST TPOPJ## ;RESTORE ERROR CODE AND RETURN
;CONTINUED ON NEXT PAGE
;CONTINUED FROM PREVIOUS PAGE
ETHOPP: CAXE T1,PT%INF ;INFORMATION PROTOCOL TYPE?
ERRRET (UNIVP%,ETHOPX) ;NO, INVALID PROTOCOL TYPE
MOVX T1,EPSOPN ;MARK PORTAL AS CURRENTLY OPEN
IORM T1,EPBSTS(Q2) ;...
MOVEI T1,.PSENA ;AND PROTOCOL AS ENABLED
DPB T1,EPPSTS ;...
SETZ T1, ;USE CHANNEL 0 ID
PUSHJ P,FNDECB ;FIND ETHERNET CHANNEL BLOCK
JRST ETHOPX ;ERROR, ERROR CODE IN T1
PUSHJ P,GENPID ;GENERATE PORTAL ID
MOVEM T1,EPBPID(Q2) ;STORE IN PORTAL BLOCK
STOR T1,UNPID,(P4) ;ALSO STORE INTO UN BLOCK
PUSHJ P,ADDEPB ;ADD PORTAL TO INFORMATION CHANNEL
JRST ETHOPX ;ERROR, ERROR CODE IN T1
PJRST CPOPJ1## ;RETURN
SUBTTL ETHERNET USER SERVICE -- CLOSE PORTAL FUNCTION
;HERE TO PROCESS A CLOSE PORTAL CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETHCLO
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHCLO: MOVX T1,EPSOPN ;MARK PORTAL AS CLOSED
ANDCAM T1,EPBSTS(Q2) ;...
MOVE T1,EPBPTY(Q2) ;GET PROTOCOL TYPE CODE
JUMPL T1,ETHCLP ;JUMP IF PSEUDO-PROTOCOL TYPE
PUSHJ P,ETHDPT ;INITIATE DISABLE OF PROTOCOL
PJRST CPOPJ1## ;AND RETURN
ETHCLP: PUSHJ P,DELEPB ;DELETE PORTAL BLOCK FROM ETHERNET CHANNEL
JFCL ;SHOULDN'T FAIL
MOVEI T1,EPBLEN ;GET LENGTH OF PORTAL BLOCK
MOVE T2,Q2 ;AND ADDRESS OF PORTAL BLOCK
PUSHJ P,GIVEWS## ;RELEASE PORTAL BLOCK
PJRST CPOPJ1## ;AND RETURN
SUBTTL ETHERNET USER SERVICE -- RECEIVE DATAGRAM FUNCTION
;HERE TO PROCESS A POST RECEIVE DATAGRAM BUFFER CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETHRDG
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
IFN VMC.XC-UNA.EV,<PRINTX ? UN and MSD values for EXEC mapping disagree>
IFN VMC.US-UNA.UV,<PRINTX ? UN and MSD values for USER mapping disagree>
IFN VMC.NO-UNA.PH,<PRINTX ? UN and MSD values for PHYSICAL mapping disagree>
ETHRDG: PUSHJ P,SAVP3## ;SAVE P3
MOVEI T1,EK.RDG ;FUNCTION RECEIVE DATAGRAM
PUSHJ P,GENEAB ;GENERATE AN EA BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
LOAD T1,UNBSZ,(P4) ;GET DATAGRAM SIZE IN BYTES
JUMPE T1,ETHRD1 ;JUMP IF MSD STYLE RECEIVE
MOVEM T1,MD.BYT+.EAMSD(P3) ;SAVE IN MSD IN EA BLOCK
LOAD T1,UNADS,(P4) ;GET ADDRESS SPACE OF DATAGRAM
STOR T1,MDVMC,+.EAMSD(P3) ;STORE IN MSD
DMOVE T1,UN.BFA(P4) ;GET BYTE POINTER TO DATA
PUSHJ P,GTWGBP ;GENERATE A TWO WORD GLOBAL BYTE POINTER
MOVEM T1,MD.AUX+.EAMSD(P3) ;SAVE P&S PORTION OF BYTE POINTER
MOVEM T2,MD.ALA+.EAMSD(P3) ;AND ADDRESS PORTION OF BYTE POINTER
JRST ETHRD2 ;CONTINUE
ETHRD1: MOVE T1,UN.BFA(P4) ;GET ADDRESS OF FIRST MSD
MOVEM T1,MD.NXT+.EAMSD(P3) ;SAVE IN MSD OF EA BLOCK
ETHRD2: LOAD T2,UNRID,(P4) ;GET COMPLETION DATA
DMOVE T3,UN.BFA(P4) ;...
XMOVEI T1,ETCRDG ;GET ADDRESS OF COMPLETION ROUTINE
PUSHJ P,CALKON ;CALL KONTROLLER
PJRST ETHSRX ;ERROR, ERROR CODE IN T1
AOS EPBRBC(Q2) ;INCREMENT COUNT OF CURRENT RECEIVE BUFFERS
PJRST CPOPJ1## ;RETURN
;HERE TO PROCESS RECEIVE DATAGRAM COMPLETION INTERRUPT
;LINKAGE: (CALLED AT INTERRUPT LEVEL)
; T2/ USER'S REQUEST ID
; T3-T4/ USER'S ORIGINAL BUFFER POINTER
; P3/ ADDRESS OF EA BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETCRDG
;RETURNS:
; CPOPJ ALWAYS
ETCRDG: PUSHJ P,SAVP4## ;SAVE P4
XMOVEI P4,EPBCBU(Q2) ;GET ADDRESS OF CALLBACK UN BLOCK
STOR T2,UNRID,(P4) ;STORE USER'S REQUEST ID
DMOVEM T3,UN.BFA(P4) ;AND USER'S ORIGINAL BUFFER POINTER
SOS EPBRBC(Q2) ;DECREMENT COUNT OF CURRENT RECEIVE BUFFERS
MOVE T1,.EADPT(P3) ;GET PROTOCOL TYPE
STOR T1,UNPRO,(P4) ;STORE IN UN BLOCK
MOVE T1,.EADSZ(P3) ;GET SIZE OF RECEIVED DATAGRAM
STOR T1,UNBSZ,(P4) ;STORE IN UN BLOCK
DMOVE T1,.EADSA(P3) ;GET SOURCE ADDRESS OF DATAGRAM
DMOVEM T1,UN.SAD(P4) ;STORE IN UN BLOCK
DMOVE T1,.EADDA(P3) ;GET DESTINATION ADDRESS OF DATAGRAM
DMOVEM T1,UN.DAD(P4) ;STORE IN UN BLOCK
TXNN T1,<BYTE (8) 1,0,0,0> ;IS DESTINATION A MULTI-CAST ADDRESS?
JRST ETCRD1 ;NO, ACCEPT DATAGRAM
MOVE T3,EPBPTY(Q2) ;GET PROTOCOL TYPE
CAXN T3,PT%PRM ;PORTAL RUNNING IN PROMISCUOUS MODE?
JRST ETCRD1 ;YES, ACCEPT DATAGRAM
PUSHJ P,FNDMCA ;FIND MULTI-CAST ADDRESS BLOCK
SKIPA ;NONE, PORTAL NOT ENABLED FOR THIS ADDRESS
JRST ETCRD1 ;FOUND IT, CONTINUE
MOVEI T1,UNRAB% ;GET RECEIVE ABORTED ERROR CODE
MOVEM T1,.EADST(P3) ;STORE IN EA BLOCK
ETCRD1: MOVE T1,.EADSZ(P3) ;GET SIZE OF DATAGRAM IN BYTES
ADDM T1,EPBCTR+PC.BYR(Q2) ;UPDATE TOTAL BYTES RECEIVED
ADDM T1,%EIBYR ;...
AOS EPBCTR+PC.DGR(Q2) ;AND TOTAL DATAGRAMS RECEIVED
AOS %EIDGR ;...
MOVEI T1,NU.RCV ;GIVE USER RECEIVE DONE CALLBACK
MOVE T3,.EADST(P3) ;GET DATAGRAM STATUS
PUSHJ P,CALUSR ;GIVE CALLBACK
PJRST GIVEAB ;RELEASE EA BLOCK AND RETURN
SUBTTL ETHERNET USER SERVICE -- TRANSMIT DATAGRAM FUNCTION
;HERE TO PROCESS A TRANSMIT DATAGRAM CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETHXDG
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
IFN VMC.XC-UNA.EV,<PRINTX ? UN and MSD values for EXEC mapping disagree>
IFN VMC.US-UNA.UV,<PRINTX ? UN and MSD values for USER mapping disagree>
IFN VMC.NO-UNA.PH,<PRINTX ? UN and MSD values for PHYSICAL mapping disagree>
ETHXDG: PUSHJ P,SAVP3## ;SAVE P3
MOVEI T1,EK.XDG ;FUNCTION TRANSMIT DATAGRAM
PUSHJ P,GENEAB ;GENERATE AN EA BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
DMOVE T1,ECBEAD(Q1) ;GET SOURCE ETHERNET ADDRESS
DMOVEM T1,.EADSA(P3) ;STORE IN EA BLOCK
DMOVE T1,UN.DAD(P4) ;GET DESTINATION ETHERNET ADDRESS
DMOVEM T1,.EADDA(P3) ;STORE IN EA BLOCK
LOAD T1,UNBSZ,(P4) ;GET DATAGRAM SIZE IN BYTES
JUMPE T1,ETHXD1 ;JUMP IF MSD STYLE TRANSMIT
MOVEM T1,MD.BYT+.EAMSD(P3) ;SAVE IN MSD IN EA BLOCK
LOAD T1,UNADS,(P4) ;GET ADDRESS SPACE OF DATAGRAM
STOR T1,MDVMC,+.EAMSD(P3) ;STORE IN MSD
DMOVE T1,UN.BFA(P4) ;GET BYTE POINTER TO DATA
PUSHJ P,GTWGBP ;GENERATE A TWO WORD GLOBAL BYTE POINTER
MOVEM T1,MD.AUX+.EAMSD(P3) ;SAVE P&S PORTION OF BYTE POINTER
MOVEM T2,MD.ALA+.EAMSD(P3) ;AND ADDRESS PORTION OF BYTE POINTER
JRST ETHXD2 ;CONTINUE
ETHXD1: MOVE T1,UN.BFA(P4) ;GET ADDRESS OF FIRST MSD
MOVEM T1,MD.NXT+.EAMSD(P3) ;SAVE IN MSD OF EA BLOCK
ETHXD2: LOAD T2,UNRID,(P4) ;GET COMPLETION DATA
DMOVE T3,UN.BFA(P4) ;...
XMOVEI T1,ETCXDG ;GET ADDRESS OF COMPLETION ROUTINE
PUSHJ P,CALKON ;CALL KONTROLLER
PJRST ETHSRX ;ERROR, ERROR CODE IN T1
AOS EPBXBC(Q2) ;INCREMENT COUNT OF CURRENT TRANSMIT BUFFERS
PJRST CPOPJ1## ;RETURN
;HERE TO PROCESS TRANSMIT DATAGRAM COMPLETION INTERRUPT
;LINKAGE: (CALLED AT INTERRUPT LEVEL)
; T2/ USER'S REQUEST ID
; T3-T4/ USER'S ORIGINAL BUFFER POINTER
; P3/ ADDRESS OF EA BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETCXDG
;RETURNS:
; CPOPJ ALWAYS
ETCXDG: PUSHJ P,SAVP4## ;SAVE P4
XMOVEI P4,EPBCBU(Q2) ;GET ADDRESS OF CALLBACK UN BLOCK
STOR T2,UNRID,(P4) ;STORE USER'S REQUEST ID
DMOVEM T3,UN.BFA(P4) ;AND ORIGINAL BUFFER POINTER
SOS EPBXBC(Q2) ;DECREMENT COUNT OF CURRENT TRANSMIT BUFFERS
MOVE T1,.EADPT(P3) ;GET PROTOCOL TYPE
STOR T1,UNPRO,(P4) ;STORE IN UN BLOCK
MOVE T1,.EADSZ(P3) ;GET SIZE OF TRANSMITTED DATAGRAM
STOR T1,UNBSZ,(P4) ;STORE IN UN BLOCK
DMOVE T1,.EADDA(P3) ;GET DESTINATION ADDRESS OF DATAGRAM
DMOVEM T1,UN.DAD(P4) ;STORE IN UN BLOCK
DMOVE T1,.EADSA(P3) ;GET SOURCE ADDRESS OF DATAGRAM
DMOVEM T1,UN.SAD(P4) ;STORE IN UN BLOCK
MOVE T1,.EADSZ(P3) ;GET DATAGRAM SIZE IN BYTES
ADDM T1,EPBCTR+PC.BYX(Q2) ;UPDATE TOTAL BYTES TRANSMITTED
ADDM T1,%EIBYX ;...
AOS EPBCTR+PC.DGX(Q2) ;AND TOTAL DATAGRAMS TRANSMITTED
AOS %EIDGX ;...
MOVEI T1,NU.XMT ;GIVE USER TRANSMIT DONE CALLBACK
MOVE T3,.EADST(P3) ;GET DATAGRAM STATUS
PUSHJ P,CALUSR ;GIVE CALLBACK
PJRST GIVEAB ;RELEASE EA BLOCK AND RETURN
SUBTTL ETHERNET USER SERVICE -- ENABLE MULTI-CAST ADDRESS FUNCTION
;HERE TO PROCESS AN ENABLE MULTI-CAST ADDRESS CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETHEMA
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHEMA: DMOVE T1,UN.DAD(P4) ;GET MULTI-CAST ADDRESS FROM UN BLOCK
PJRST ADDMCA ;ADD MULTI-CAST ADDRESS TO PORTAL AND RETURN
SUBTTL ETHERNET USER SERVICE -- DISABLE MULTI-CAST ADDRESS FUNCTION
;HERE TO PROCESS A DISABLE MULTI-CAST ADDRESS CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETHDMA
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHDMA: DMOVE T1,UN.DAD(P4) ;GET MULTI-CAST ADDRESS FROM UN BLOCK
PJRST DELMCA ;DELETE MULTI-CAST ADDRESS BLOCK AND RETURN
SUBTTL ETHERNET USER SERVICE -- READ CHANNEL LIST FUNCTION
;HERE TO PROCESS A READ CHANNEL LIST CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; PUSHJ P,ETHRCL
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHRCL: XMOVEI Q1,%EICHN-ECBSYS ;GET FIRST-1 CHANNEL BLOCK ADDRESS
XMOVEI T1,ETXRCL ;AND ADDRESS OF READ CHANNEL LIST ROUTINE
PJRST ETHRXL ;READ CHANNEL LIST AND RETURN
;ROUTINE CALLED BY ETHRXL TO READ NEXT CHANNEL'S STATUS WORD
ETXRCL: MOVE Q1,ECBSYS(Q1) ;GET ADDRESS OF NEXT CHANNEL BLOCK
PJUMPE Q1,CPOPJ## ;RETURN IF AT END OF LIST
AOS (P) ;PRESET SKIP RETURN
PJRST GENCSW ;GENERATE CHANNEL STATUS WORD AND RETURN
SUBTTL ETHERNET USER SERVICE -- READ CHANNEL INFORMATION FUNCTION
;HERE TO PROCESS A READ CHANNEL INFORMATION CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; PUSHJ P,ETHRCI
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHRCI: LOAD T1,UNSID,(P4) ;GET CHANNEL ID
PUSHJ P,FNDECB ;FIND ETHERNET CHANNEL BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
PUSHJ P,GENCSW ;GENERATE CHANNEL STATUS WORD
STOR T1,UNSID,(P4) ;STORE FOR CALLER
DMOVE T1,ECBEAD(Q1) ;GET CURRENT CHANNEL ETHERNET ADDRESS
DMOVEM T1,UN.CAR(P4) ;STORE IN UN BLOCK
SETZB T1,T2 ;ZERO PRIMARY HARDWARE ETHERNET ADDRESS
SKIPE Q3,ECBEKB(Q1) ;GET ADDRESS OF PRIMARY ETHERNET KONTROLLER
DMOVE T1,EKBHEA(Q3) ;GET PRIMARY HARDWARE KONTROLLER ADDRESS
DMOVEM T1,UN.HAD(P4) ;STORE IN UN BLOCK
MOVEI T1,RCITLN ;GET LENGTH OF CHANNEL INFORMATION TABLE
XMOVEI T2,RCITAB ;AND ADDRESS OF CHANNEL INFORMATION TABLE
PJRST ETHRXI ;STORE CHANNEL INFORMATION AND RETURN
;TABLE OF INSTRUCTIONS FOR FETCHING CHANNEL INFORMATION
DEFINE INF(CODE,INST),<
IF1,<IFN <CODE-<.-RCITAB>>,<PRINTX ?Table RCITAB entry CODE is out of order>>
EXP INST ;;INSTRUCTION TO FETCH VALUE
>; END DEFINE INF
RCITAB: INF <CI.CNM>, <MOVE T1,ECBCID(Q1)> ;CHANNEL NUMBER
INF <CI.EAD+0>,<MOVE T1,ECBEAD+0(Q1)> ;CURRENT ETHERNET ADDRESS
INF <CI.EAD+1>,<MOVE T1,ECBEAD+1(Q1)> ;...
RCITLN==.-RCITAB ;LENGTH OF CHANNEL INFORMATION TABLE
IF1,<IFN <CI.LEN-<.-RCITAB>>,<PRINTX ?Table RCITAB is missing entries>>
SUBTTL ETHERNET USER SERVICE -- READ CHANNEL COUNTERS FUNCTION
;HERE TO PROCESS A READ CHANNEL COUNTERS CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,ETHRCC
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHRCC: PUSHJ P,SAVP3## ;SAVE P3
PUSHJ P,SAVQ## ;SAVE Q1-Q3
LOAD T1,UNSID,(P4) ;GET CHANNEL ID
PUSHJ P,FNDECB ;FIND ETHERNET CHANNEL BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
PUSHJ P,GENCSW ;GENERATE CHANNEL STATUS WORD
STOR T1,UNSID,(P4) ;STORE FOR CALLER
MOVEI T1,EK.RKC ;FUNCTION READ AND CLEAR KONTROLLER COUNTERS
PUSHJ P,GENEAB ;GENERATE AN EA BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
MOVEI T2,KC.LEN ;GET LENGTH OF COUNTERS AREA
MOVEM T2,.EACBS(P3) ;SAVE IN EA BLOCK
PUSHJ P,GETEWZ## ;GET BUFFER TO READ COUNTERS INTO
ERRRET (UNRES%,ETHSRX) ;RESOURCE ERROR, RETURN
MOVEM T1,.EACBA(P3) ;SAVE BUFFER ADDRESS IN EA BLOCK
LOAD T2,UNRID,(P4) ;GET COMPLETION DATA
LOAD T3,UNBSZ,(P4) ;...
LOAD T4,UNZRO,(P4) ;...
DPB T4,[POINT 1,T3,0] ;...
MOVE T4,UN.BFA(P4) ;...
PUSHJ P,ETXRCC ;INITIATE READING OF CHANNEL COUNTERS
PJRST CPOPJ1## ;AND RETURN
;CONTINUED ON NEXT PAGE
;CONTINUED FROM PREVIOUS PAGE
;HERE TO READ EACH KONTROLLER'S COUNTERS
ETXRCC: SKIPA Q3,ECBEKB(Q1) ;GET ADDRESS OF FIRST ETHERNET KONTROLLER
ETXRC1: MOVE Q3,EKBNXT(Q3) ;GET ADDRESS OF NEXT ETHERNET KONTROLLER
JUMPE Q3,ETCRCC ;IF NO MORE KONTROLLERS, RETURN COUNTERS
XMOVEI T1,ETXRC2 ;GET ADDRESS OF COMPLETION ROUTINE
PUSHJ P,CALKON ;CALL KONTROLLER
JRST ETXRC1 ;ERROR, LOOP BACK FOR NEXT KONTROLLER
POPJ P, ;RETURN
;HERE TO PROCESS READ AND CLEAR KONTROLLER COUNTERS COMPLETION INTERRUPT
ETXRC2: PUSH P,T2 ;SAVE CALLBACK INFORMATION
PUSH P,T3 ;...
PUSH P,T4 ;...
MOVEI T1,KC.LEN ;GET LENGTH OF COUNTERS AREA
MOVE T2,UKCUAP ;GET POINTER TO COUNTERS UPDATE ACTION TABLE
MOVE T3,.EACBA(P3) ;GET ADDRESS OF COUNTERS BUFFER
XMOVEI T4,EKBCTR(Q3) ;AND ADDRESS OF KONTROLLER COUNTERS BLOCK
PUSHJ P,UPDCTR ;UPDATE KONTROLLER'S COUNTERS
MOVEI T1,KC.LEN ;GET LENGTH OF COUNTERS AREA
MOVE T2,UKCUAP ;GET POINTER TO COUNTERS UPDATE ACTION TABLE
MOVE T3,.EACBA(P3) ;GET ADDRESS OF COUNTERS BUFFER
XMOVEI T4,ECBCTR(Q1) ;AND ADDRESS OF CHANNEL COUNTERS BLOCK
PUSHJ P,UPDCTR ;UPDATE CHANNEL'S COUNTERS
POP P,T4 ;RESTORE CALLBACK INFORMATION
POP P,T3 ;...
POP P,T2 ;...
JRST ETXRC1 ;LOOP BACK FOR ALL KONTROLLERS
;HERE TO PROCESS READ CHANNEL COUNTERS COMPLETION INTERRUPT
;LINKAGE: (CALLED AT INTERRUPT LEVEL)
; T2/ USER'S REQUEST ID
; T3/ LENGTH OF USER'S COUNTERS BUFFER (BIT 0 IS ZERO FLAG)
; T4/ ADDRESS OF USER'S COUNTERS BUFFER
; P3/ ADDRESS OF EA BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,ETCRCC
;RETURNS:
; CPOPJ ALWAYS
ETCRCC: PUSHJ P,SAVP4## ;SAVE P4
XMOVEI P4,EPBCBU(Q2) ;GET ADDRESS OF CALLBACK UN BLOCK
STOR T2,UNRID,(P4) ;STORE USER'S REQUEST ID
MOVEM T4,UN.BFA(P4) ;STORE ADDRESS OF USER'S COUNTERS BUFFER
LDB T4,[POINT 1,T3,0] ;GET ZERO FLAG
STOR T4,UNZRO,(P4) ;STORE IN UN BLOCK
TLZ T3,(1B0) ;CLEAR ZERO FLAG
CAILE T3,CC.LEN ;BUFFER LARGER THAN COUNTERS AREA?
MOVEI T3,CC.LEN ;YES, USE LENGTH OF COUNTERS AREA
STOR T3,UNBSZ,(P4) ;STORE NUMBER OF COUNTERS RETURNED
MOVE T1,T3 ;GET LENGTH OF USER BUFFER AREA
XMOVEI T2,ECBCTR(Q1) ;GET ADDRESS OF COUNTERS AREA
MOVE T3,UN.BFA(P4) ;AND ADDRESS OF USER BUFFER AREA
EXTEND T1,[XBLT] ;COPY COUNTERS TO USER BUFFER
LOAD T1,UNZRO,(P4) ;GET ZERO COUNTERS FLAG
JUMPE T1,ETCRC2 ;JUMP IF JUST READING COUNTERS
MOVEI T1,CC.LEN-1 ;ZERO CHANNEL COUNTERS BLOCK
XMOVEI T2,ECBCTR(Q1) ;...
XMOVEI T3,ECBCTR+1(Q1) ;...
SETZM ECBCTR(Q1) ;ZERO FIRST WORD OF BLOCK
EXTEND T1,[XBLT] ;ZERO REMAINDER
ETCRC2: MOVEI T1,NU.RCC ;GET READ CHANNEL COUNTERS CALLBACK
SETZ T3, ;AND VALID DATA STATUS RETURN CODE
PUSHJ P,CALUSR ;...
MOVEI T1,KC.LEN ;GET LENGTH OF COUNTERS BUFFER
MOVE T2,.EACBA(P3) ;AND ADDRESS OF BUFFER
PUSHJ P,GIVEWS## ;RELEASE COUNTERS BUFFER
PJRST GIVEAB ;RELEASE EA BLOCK AND RETURN
SUBTTL ETHERNET USER SERVICE -- SET CHANNEL ADDRESS FUNCTION
;HERE TO PROCESS A SET CHANNEL ADDRESS CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; PUSHJ P,ETHSCA
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHSCA: PUSHJ P,SAVP3## ;SAVE P3
LOAD T1,UNSID,(P4) ;GET CHANNEL ID
PUSHJ P,FNDECB ;FIND ETHERNET CHANNEL BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
PUSHJ P,GENCSW ;GENERATE CHANNEL STATUS WORD
STOR T1,UNSID,(P4) ;STORE FOR CALLER
DMOVE T1,UN.DAD(P4) ;GET NEW ETHERNET ADDRESS
TXNE T1,<BYTE (8) 1,0,0,0> ;IS THIS A MULTI-CAST ADDRESS?
ERRRET (UNICA%) ;YES, ILLEGAL CHANNEL ADDRESS
DMOVEM T1,ECBEAD(Q1) ;STORE NEW ETHERNET ADDRESS
ETHLOK ;INTERLOCK AGAINST SMP RACES
SKIPA Q3,ECBEKB(Q1) ;GET ADDRESS OF FIRST KONTROLLER BLOCK
ETHSA1: MOVE Q3,EKBNXT(Q3) ;GET ADDRESS OF NEXT KONTROLLER BLOCK
JUMPE Q3,ETHSA2 ;EXIT LOOP AT END OF LIST
MOVX T1,EKSSEA ;SET FLAG FOR CLOCK LEVEL TO SET ADDRESS
IORM T1,EKBSTS(Q3) ;...
JRST ETHSA1 ;LOOP BACK FOR ALL KONTROLLERS
ETHSA2: ETHULK ;RELEASE SMP INTERLOCK
PJRST CPOPJ1## ;AND RETURN
;HERE TO PROCESS SET ETHERNET ADDRESS COMPLETION INTERRUPT
;LINKAGE: (CALLED AT INTERRUPT LEVEL)
; P3/ ADDRESS OF EA BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETCSCA
;RETURNS:
; CPOPJ ALWAYS
ETCSCA: PUSHJ P,SAVP4## ;SAVE P4
ETHLOK ;INTERLOCK AGAINST SMP RACES
SKIPA Q2,ECBEPB(Q1) ;GET ADDRESS OF FIRST PORTAL BLOCK
ETCSA1: MOVE Q2,EPBNXT(Q2) ;GET ADDRESS OF NEXT PORTAL BLOCK
PJUMPE Q2,UNLETH## ;RETURN AT END OF LIST
CAME Q3,EPBEKB(Q2) ;THIS PORTAL USING THIS KONTROLLER?
JRST ETCSA2 ;NO, SKIP THIS PORTAL
XMOVEI P4,EPBCBU(Q2) ;GET ADDRESS OF CALLBACK UN BLOCK
SETZ T1, ;STORE REQUEST ID OF ZERO
STOR T1,UNRID,(P4) ;...
DMOVE T1,ECBEAD(Q1) ;GET NEW CHANNEL ADDRESS
DMOVEM T1,UN.DAD(P4) ;STORE IN UN BLOCK
MOVEI T1,NU.SCA ;GIVE USER SET CHANNEL ADDRESS CALLBACK
PUSHJ P,CALUSR ;GIVE CALLBACK
ETCSA2: JRST ETCSA1 ;LOOP BACK FOR ALL PORTALS
SUBTTL ETHERNET USER SERVICE -- READ PORTAL LIST FUNCTION
;HERE TO PROCESS A READ PORTAL LIST CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; PUSHJ P,ETHRPL
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHRPL: LOAD T1,UNSID,(P4) ;GET CHANNEL ID
PUSHJ P,FNDECB ;FIND ETHERNET CHANNEL BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
PUSHJ P,GENCSW ;GENERATE CHANNEL STATUS WORD
STOR T1,UNSID,(P4) ;STORE FOR CALLER
XMOVEI Q2,ECBEPB-EPBNXT(Q1) ;GET FIRST-1 PORTAL BLOCK ADDRESS
XMOVEI T1,ETXRPL ;AND ADDRESS OF READ PORTAL LIST ROUTINE
PJRST ETHRXL ;READ PORTAL LIST AND RETURN
;ROUTINE CALLED BY ETHRXL TO READ NEXT PORTAL'S STATUS WORD
ETXRPL: MOVE Q2,EPBNXT(Q2) ;GET ADDRESS OF NEXT PORTAL BLOCK
PJUMPE Q2,CPOPJ## ;RETURN IF AT END OF LIST
AOS (P) ;PRESET SKIP RETURN
PJRST GENPSW ;GENERATE PORTAL STATUS WORD AND RETURN
SUBTTL ETHERNET USER SERVICE -- READ PORTAL INFORMATION FUNCTION
;HERE TO PROCESS A READ PORTAL INFORMATION CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; PUSHJ P,ETHRPI
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHRPI: LOAD T1,UNSID,(P4) ;GET PORTAL ID
PUSHJ P,FNDEPB ;FIND ETHERNET PORTAL BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
PUSHJ P,GENPSW ;GENERATE PORTAL STATUS WORD
STOR T1,UNSID,(P4) ;STORE FOR CALLER
MOVX T1,EPSOPN ;IS PORTAL CURRENTLY OPEN?
TDNN T1,EPBSTS(Q2) ;...
ERRRET (UNPWS%) ;NO, PORTAL IS IN WRONG STATE
MOVEI T1,RPITLN ;GET LENGTH OF PORTAL INFORMATION TABLE
XMOVEI T2,RPITAB ;AND ADDRESS OF PORTAL INFORMATION TABLE
PJRST ETHRXI ;STORE PORTAL INFORMATION AND RETURN
;TABLE OF INSTRUCTIONS FOR FETCHING PORTAL INFORMATION
DEFINE INF(CODE,INST),<
IF1,<IFN <CODE-<.-RPITAB>>,<PRINTX ?Table RPITAB entry CODE is out of order>>
EXP INST ;;INSTRUCTION TO FETCH VALUE
>; END DEFINE INF
RPITAB: INF <PI.JCH>,<MOVE T1,EPBJCH(Q2)> ;JCH OF PORTAL OWNER
INF <PI.PIW>,<PUSHJ P,RPIPIW> ;PROTOCOL IDENTIFICATION WORD
INF <PI.CSW>,<PUSHJ P,GENCSW> ;CHANNEL STATUS WORD
INF <PI.KSW>,<PUSHJ P,GENKSW> ;KONTROLLER STATUS WORD
RPITLN==.-RPITAB ;LENGTH OF PORTAL INFORMATION TABLE
IF1,<IFN <PI.LEN-<.-RPITAB>>,<PRINTX ?Table RPITAB is missing entries>>
;ROUTINE TO COMPUTE PROTOCOL IDENTIFICATION WORD
RPIPIW: LDB T1,EPPPAD ;GET PADDING FLAG
ROT T1,-1 ;POSITION INTO SIGN BIT
ADD T1,EPBPTY(Q2) ;ADD IN PROTOCOL TYPE
POPJ P, ;AND RETURN
SUBTTL ETHERNET USER SERVICE -- READ PORTAL COUNTERS FUNCTION
;HERE TO PROCESS A READ PORTAL COUNTERS CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,ETHRPC
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHRPC: PUSHJ P,SAVP3## ;SAVE P3
PUSHJ P,SAVQ## ;SAVE Q1-Q3
MOVEI T1,EK.RPC ;FUNCTION READ AND CLEAR PORTAL COUNTERS
PUSHJ P,GENEAB ;GENERATE AN EA BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
LOAD T1,UNSID,(P4) ;GET PORTAL ID
PUSHJ P,FNDEPB ;FIND ETHERNET PORTAL BLOCK
PJRST ETHSRX ;ERROR, ERROR CODE IN T1
PUSHJ P,GENPSW ;GENERATE PORTAL STATUS WORD
STOR T1,UNSID,(P4) ;STORE FOR CALLER
MOVX T1,EPSOPN ;IS PORTAL CURRENTLY OPEN?
TDNN T1,EPBSTS(Q2) ;...
ERRRET (UNPWS%,ETHSRX) ;NO, PORTAL IS IN WRONG STATE
MOVEI T1,PC.LEN ;GET LENGTH OF COUNTERS AREA
MOVEM T1,.EACBS(P3) ;SAVE IN EA BLOCK
XMOVEI T1,EPBCTR(Q2) ;GET ADDRESS OF COUNTERS AREA
MOVEM T1,.EACBA(P3) ;SAVE IN EA BLOCK
LOAD T2,UNRID,(P4) ;GET COMPLETION DATA
LOAD T3,UNBSZ,(P4) ;...
LOAD T4,UNZRO,(P4) ;...
DPB T4,[POINT 1,T3,0] ;...
MOVE T4,UN.BFA(P4) ;...
XMOVEI T1,ETCRPC ;GET ADDRESS OF COMPLETION ROUTINE
PUSHJ P,CALKON ;CALL KONTROLLER
PUSHJ P,ETCRPC ;ERROR, GO RETURN COUNTERS
PJRST CPOPJ1## ;AND RETURN
;HERE TO PROCESS READ PORTAL COUNTERS COMPLETION INTERRUPT
;LINKAGE: (CALLED AT INTERRUPT LEVEL)
; T2/ USER'S REQUEST ID
; T3/ LENGTH OF USER'S COUNTERS BUFFER (BIT 0 IS ZERO FLAG)
; T4/ ADDRESS OF USER'S COUNTERS BUFFER
; P3/ ADDRESS OF EA BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETCRPC
;RETURNS:
; CPOPJ ALWAYS
ETCRPC: PUSHJ P,SAVP4## ;SAVE P4
XMOVEI P4,EPBCBU(Q2) ;GET ADDRESS OF CALLBACK UN BLOCK
STOR T2,UNRID,(P4) ;STORE USER'S REQUEST ID
MOVEM T4,UN.BFA(P4) ;STORE ADDRESS OF USER'S COUNTERS BUFFER
LDB T4,[POINT 1,T3,0] ;GET ZERO FLAG
STOR T4,UNZRO,(P4) ;STORE IN UN BLOCK
TLZ T3,(1B0) ;CLEAR ZERO FLAG
CAILE T3,PC.LEN ;BUFFER LARGER THAN COUNTERS AREA?
MOVEI T3,PC.LEN ;YES, USE LENGTH OF COUNTERS AREA
STOR T3,UNBSZ,(P4) ;STORE NUMBER OF COUNTERS RETURNED
MOVE T1,T3 ;GET LENGTH OF USER BUFFER AREA
MOVE T2,.EACBA(P3) ;GET ADDRESS OF COUNTERS AREA
MOVE T3,UN.BFA(P4) ;AND ADDRESS OF USER BUFFER AREA
EXTEND T1,[XBLT] ;COPY COUNTERS TO USER BUFFER
LOAD T1,UNZRO,(P4) ;GET ZERO COUNTERS FLAG
JUMPE T1,ETCRP2 ;JUMP IF JUST READING COUNTERS
MOVEI T1,PC.LEN-1 ;ZERO PORTAL COUNTERS BLOCK
MOVE T2,.EACBA(P3) ;...
XMOVEI T3,1(T2) ;...
SETZM (T2) ;ZERO FIRST WORD OF BLOCK
EXTEND T1,[XBLT] ;ZERO REMAINDER
ETCRP2: MOVEI T1,NU.RPC ;GET READ PORTAL COUNTERS CALLBACK
SETZ T3, ;AND VALID DATA STATUS RETURN CODE
PUSHJ P,CALUSR ;...
PJRST GIVEAB ;RELEASE EA BLOCK AND RETURN
SUBTTL ETHERNET USER SERVICE -- READ KONTROLLER LIST
;HERE TO PROCESS A READ KONTROLLER LIST CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; PUSHJ P,ETHRKL
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHRKL: LOAD T1,UNSID,(P4) ;GET CHANNEL ID
PUSHJ P,FNDECB ;FIND ETHERNET CHANNEL BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
PUSHJ P,GENCSW ;GENERATE CHANNEL STATUS WORD
STOR T1,UNSID,(P4) ;STORE FOR CALLER
XMOVEI Q3,ECBEKB-EKBNXT(Q1) ;GET FIRST-1 KONTROLLER BLOCK ADDRESS
XMOVEI T1,ETXRKL ;AND ADDRESS OF READ KONTROLLER LIST ROUTINE
PJRST ETHRXL ;READ KONTROLLER LIST AND RETURN
;ROUTINE CALLED BY ETHRXL TO READ NEXT KONTROLLER'S STATUS WORD
ETXRKL: MOVE Q3,EKBNXT(Q3) ;GET ADDRESS OF NEXT KONTROLLER BLOCK
PJUMPE Q3,CPOPJ## ;RETURN IF AT END OF LIST
AOS (P) ;PRESET SKIP RETURN
PJRST GENKSW ;GENERATE KONTROLLER STATUS WORD AND RETURN
SUBTTL ETHERNET USER SERVICE -- READ KONTROLLER INFORMATION
;HERE TO PROCESS A READ KONTROLLER INFORMATION CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; PUSHJ P,ETHRKI
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHRKI: LOAD T1,UNSID,(P4) ;GET KONTROLLER ID
PUSHJ P,FNDEKB ;FIND ETHERNET KONTROLLER BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
PUSHJ P,GENKSW ;GENERATE KONTROLLER STATUS WORD
STOR T1,UNSID,(P4) ;STORE FOR CALLER
MOVEI T1,RKITLN ;GET LENGTH OF KONTROLLER INFORMATION TABLE
XMOVEI T2,RKITAB ;AND ADDRESS OF KONTROLLER INFORMATION TABLE
PJRST ETHRXI ;STORE KONTROLLER INFORMATION AND RETURN
;TABLE OF INSTRUCTIONS FOR FETCHING KONTROLLER INFORMATION
DEFINE INF(CODE,INST),<
IF1,<IFN <CODE-<.-RKITAB>>,<PRINTX ?Table RKITAB entry CODE is out of order>>
EXP INST ;;INSTRUCTION TO FETCH VALUE
>; END DEFINE INF
RKITAB: INF <KI.CSW>, <PUSHJ P,GENCSW> ;CHANNEL STATUS WORD
INF <KI.CPU>, <LDB T1,EKPCPU> ;CPU NUMBER OF KONTROLLER
INF <KI.TYP>, <LDB T1,EKPKTY> ;KONTROLLER TYPE
INF <KI.KNO>, <LDB T1,EKPKNO> ;KONTROLLER NUMBER
INF <KI.HEA+0>,<MOVE T1,EKBHEA+0(Q3)> ;HARDWARE ETHERNET ADDRESS
INF <KI.HEA+1>,<MOVE T1,EKBHEA+1(Q3)> ;HARDWARE ETHERNET ADDRESS
RKITLN==.-RKITAB ;LENGTH OF KONTROLLER INFORMATION TABLE
IF1,<IFN <KI.LEN-<.-RKITAB>>,<PRINTX ?Table RKITAB is missing entries>>
SUBTTL ETHERNET USER SERVICE -- READ KONTROLLER COUNTERS
;HERE TO PROCESS A READ KONTROLLER COUNTERS CALL TO ETHSER
;LINKAGE:
; P4/ ADDRESS OF UN BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,ETHRKC
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHRKC: PUSHJ P,SAVP3## ;SAVE P3
LOAD T1,UNSID,(P4) ;GET KONTROLLER ID
PUSHJ P,FNDEKB ;FIND ETHERNET KONTROLLER BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
PUSHJ P,GENKSW ;GENERATE KONTROLLER STATUS WORD
STOR T1,UNSID,(P4) ;STORE FOR CALLER
MOVEI T1,EK.RKC ;FUNCTION READ AND CLEAR KONTROLLER COUNTERS
PUSHJ P,GENEAB ;GENERATE AN EA BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
MOVEI T2,KC.LEN ;GET LENGTH OF COUNTERS AREA
MOVEM T2,.EACBS(P3) ;SAVE IN EA BLOCK
PUSHJ P,GETEWZ## ;GET BUFFER TO READ COUNTERS INTO
ERRRET (UNRES%,ETHSRX) ;RESOURCE ERROR, RETURN
MOVEM T1,.EACBA(P3) ;SAVE BUFFER ADDRESS IN EA BLOCK
LOAD T2,UNRID,(P4) ;GET COMPLETION DATA
LOAD T3,UNBSZ,(P4) ;...
LOAD T4,UNZRO,(P4) ;...
DPB T4,[POINT 1,T3,0] ;...
MOVE T4,UN.BFA(P4) ;...
PUSHJ P,ETXRKC ;INITIATE READING OF KONTROLLER COUNTERS
PJRST CPOPJ1## ;AND RETURN
;CONTINUED ON NEXT PAGE
;CONTINUED FROM PREVIOUS PAGE
;HERE TO READ KONTROLLER'S COUNTERS
ETXRKC: XMOVEI T1,ETXRK1 ;GET ADDRESS OF COMPLETION ROUTINE
PUSHJ P,CALKON ;CALL KONTROLLER
PJRST ETCRKC ;ERROR, GO RETURN COUNTERS
POPJ P, ;RETURN
;HERE TO PROCESS READ AND CLEAR KONTROLLER COUNTERS COMPLETION INTERRUPT
ETXRK1: PUSH P,T2 ;SAVE CALLBACK INFORMATION
PUSH P,T3 ;...
PUSH P,T4 ;...
MOVEI T1,KC.LEN ;GET LENGTH OF COUNTERS AREA
MOVE T2,UKCUAP ;GET POINTER TO COUNTERS UPDATE ACTION TABLE
MOVE T3,.EACBA(P3) ;GET ADDRESS OF COUNTERS BUFFER
XMOVEI T4,EKBCTR(Q3) ;AND ADDRESS OF KONTROLLER COUNTERS BLOCK
PUSHJ P,UPDCTR ;UPDATE KONTROLLER'S COUNTERS
MOVEI T1,KC.LEN ;GET LENGTH OF COUNTERS AREA
MOVE T2,UKCUAP ;GET POINTER TO COUNTERS UPDATE ACTION TABLE
MOVE T3,.EACBA(P3) ;GET ADDRESS OF COUNTERS BUFFER
XMOVEI T4,ECBCTR(Q1) ;AND ADDRESS OF CHANNEL COUNTERS BLOCK
PUSHJ P,UPDCTR ;UPDATE CHANNEL'S COUNTERS
POP P,T4 ;RESTORE CALLBACK INFORMATION
POP P,T3 ;...
POP P,T2 ;...
PJRST ETCRKC ;GO RETURN KONTROLLER COUNTERS
;HERE TO PROCESS READ KONTROLLER COUNTERS COMPLETION INTERRUPT
;LINKAGE: (CALLED AT INTERRUPT LEVEL)
; T2/ USER'S REQUEST ID
; T3/ LENGTH OF USER'S COUNTERS BUFFER (BIT 0 IS ZERO FLAG)
; T4/ ADDRESS OF USER'S COUNTERS BUFFER
; P3/ ADDRESS OF EA BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETCRKC
;RETURNS:
; CPOPJ ALWAYS
ETCRKC: PUSHJ P,SAVP4## ;SAVE P4
XMOVEI P4,EPBCBU(Q2) ;GET ADDRESS OF CALLBACK UN BLOCK
STOR T2,UNRID,(P4) ;STORE USER'S REQUEST ID
MOVEM T4,UN.BFA(P4) ;STORE ADDRESS OF USER'S COUNTERS BUFFER
LDB T4,[POINT 1,T3,0] ;GET ZERO FLAG
STOR T4,UNZRO,(P4) ;STORE IN UN BLOCK
TLZ T3,(1B0) ;CLEAR ZERO FLAG
CAILE T3,KC.LEN ;BUFFER LARGER THAN COUNTERS AREA?
MOVEI T3,KC.LEN ;YES, USE LENGTH OF COUNTERS AREA
STOR T3,UNBSZ,(P4) ;STORE NUMBER OF COUNTERS RETURNED
MOVE T1,T3 ;GET LENGTH OF USER BUFFER AREA
XMOVEI T2,EKBCTR(Q3) ;GET ADDRESS OF COUNTERS AREA
MOVE T3,UN.BFA(P4) ;AND ADDRESS OF USER BUFFER AREA
EXTEND T1,[XBLT] ;COPY COUNTERS TO USER BUFFER
LOAD T1,UNZRO,(P4) ;GET ZERO COUNTERS FLAG
JUMPE T1,ETCRK2 ;JUMP IF JUST READING COUNTERS
MOVEI T1,KC.LEN-1 ;ZERO KONTROLLER COUNTERS
XMOVEI T2,EKBCTR(Q3) ;...
XMOVEI T3,EKBCTR+1(Q3) ;...
SETZM EKBCTR(Q3) ;ZERO FIRST WORD OF BLOCK
EXTEND T1,[XBLT] ;ZERO REMAINDER
ETCRK2: MOVEI T1,NU.RKC ;GET READ KONTROLLER COUNTERS CALLBACK
SETZ T3, ;AND VALID DATA STATUS RETURN CODE
PUSHJ P,CALUSR ;GIVE COMPLETION CALLBACK
MOVEI T1,KC.LEN ;GET LENGTH OF COUNTERS BUFFER
MOVE T2,.EACBA(P3) ;AND ADDRESS OF BUFFER
PUSHJ P,GIVEWS## ;RELEASE COUNTERS BUFFER
PJRST GIVEAB ;RELEASE EA BLOCK AND RETURN
SUBTTL ETHERNET USER SERVICE -- READ ETHERNET LIST
;HERE TO PROCESS A READ ETHERNET LIST CALL
;LINKAGE:
; T1/ ADDRESS OF ROUTINE TO RETURN NEXT STATUS WORD
; P4/ ADDRESS OF UN BLOCK
; PUSHJ P,ETHRXL
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHRXL: PUSHJ P,SAVE3## ;SAVE P1-P3
MOVE P3,T1 ;SAVE ADDRESS OF STATUS ROUTINE
LOAD P1,UNBSZ,(P4) ;GET SIZE OF USER BUFFER
JUMPLE P1,[ERRRET (UNIBS%)] ;ERROR, INVALID BUFFER SIZE
LOAD P2,UNBFA,(P4) ;GET ADDRESS OF USER BUFFER
JUMPLE P2,[ERRRET (UNIFB%)] ;ERROR, ILLEGALLY FORMATTED BUFFER
ETHLOK ;INTERLOCK AGAINST SMP RACES
ETHRL1: PUSHJ P,(P3) ;GET NEXT STATUS WORD
JRST ETHRL2 ;EXIT LOOP AT END OF LIST
JUMPLE P1,ETHRL2 ;EXIT LOOP IF NO MORE ROOM IN BUFFER
MOVEM T1,(P2) ;STORE STATUS WORD INTO USER BUFFER
XMOVEI P2,1(P2) ;INCREMENT USER BUFFER POINTER
SOJA P1,ETHRL1 ;LOOP THROUGH ALL STATUS WORDS
ETHRL2: ETHULK ;RELEASE SMP INTERLOCK
LOAD T1,UNBSZ,(P4) ;GET ORIGINAL SIZE OF USER BUFFER
SUB T1,P1 ;CALCULATE NUMBER OF ENTRIES STORED
STOR T1,UNBSZ,(P4) ;STORE INTO UN BLOCK
PJRST CPOPJ1## ;RETURN
SUBTTL ETHERNET USER SERVICE -- READ ETHERNET INFORMATION
;HERE TO PROCESS A READ ETHERNET INFORMATION CALL
;LINKAGE:
; T1/ LENGTH OF INFORMATION TABLE
; T2/ ADDRESS OF INFORMATION TABLE
; P4/ ADDRESS OF UN BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETHRXI
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ETHRXI: PUSHJ P,SAVE2## ;SAVE P1-P2
DMOVE P1,T1 ;SAVE SIZE AND ADDRESS OF INFORMATION TABLE
LOAD T3,UNBSZ,(P4) ;GET SIZE OF USER BUFFER
JUMPL T3,[ERRRET (UNIBS%)] ;ERROR, INVALID BUFFER SIZE
JUMPE T3,ETHRI2 ;JUMP IF NO BUFFER
LOAD T4,UNBFA,(P4) ;GET ADDRESS OF USER BUFFER
JUMPLE T4,[ERRRET (UNIFB%)] ;ERROR, ILLEGALLY FORMATTED BUFFER
ETHRI1: JUMPLE P1,ETHRI2 ;EXIT LOOP IF NO MORE TABLE ENTRIES
JUMPLE T3,ETHRI2 ;EXIT LOOP IF NO MORE ROOM IN BUFFER
XCT (P2) ;FETCH NEXT INFORMATION WORD
MOVEM T1,(T4) ;STORE INTO USER BUFFER
XMOVEI T4,1(T4) ;INCREMENT USER BUFFER POINTER
SOJ T3, ;DECREMENT USER COUNT
XMOVEI P2,1(P2) ;INCREMENT TABLE ADDRESS
SOJA P1,ETHRI1 ;LOOP BACK TO PROCESS ENTIRE TABLE
ETHRI2: LOAD T1,UNBSZ,(P4) ;GET ORIGINAL SIZE OF USER BUFFER
SUB T1,T3 ;CALCULATE NUMBER OF ENTRIES STORED
STOR T1,UNBSZ,(P4) ;STORE INTO UN BLOCK
PJRST CPOPJ1## ;RETURN
SUBTTL ETHERNET USER SERVICE -- REPORT PORTAL STATUS CHANGE
;ROUTINE TO REPORT CURRENT PORTAL STATUS BACK TO PORTAL USER
;LINKAGE: (MAY BE CALLED AT INTERRUPT LEVEL)
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,CALSTS
;RETURNS:
; CPOPJ ALWAYS
CALSTS: PUSHJ P,SAVP4## ;SAVE P4
XMOVEI P4,EPBCBU(Q2) ;GET ADDRESS OF CALLBACK UN BLOCK
SETZ T1, ;ZERO REQUEST ID FOR UNSOLICITED CALLBACK
STOR T1,UNRID,(P4) ;...
STOR T1,UNBSZ,(P4) ;ALSO CLEAR SIZE OF DATA BUFFER
DMOVE T1,ECBEAD(Q1) ;GET CURRENT CHANNEL ETHERNET ADDRESS
DMOVEM T1,UN.CAR(P4) ;STORE IN UN BLOCK
SETZB T1,T2 ;ZERO PRIMARY HARDWARE ETHERNET ADDRESS
SKIPE Q3 ;PROTOCOL HAVE AN ETHERNET KONTROLLER ASSIGNED?
DMOVE T1,EKBHEA(Q3) ;YES, GET ITS HARDWARE ADDRESS
DMOVEM T1,UN.HAD(P4) ;STORE IN UN BLOCK
MOVEI T1,NU.RCI ;GIVE READ CHANNEL INFORMATION CALLBACK
PJRST CALUSR ;CALL USER AND RETURN
SUBTTL ETHERNET USER SERVICE -- CALL PORTAL USER
;ROUTINE TO CALLBACK TO PORTAL USER
;LINKAGE:
; T1/ FUNCTION CODE (UN.XXX)
; T3/ FUNCTION SPECIFIC STATUS
; P4/ ADDRESS OF UN BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,CALUSR
;RETURNS:
; CPOPJ ALWAYS
CALUSR: MOVE T2,ECBCID(Q1) ;GET ETHERNET CHANNEL ID
STOR T2,UNCHN,(P4) ;STORE IN UN BLOCK
MOVE T2,EPBPID(Q2) ;GET PORTAL ID
STOR T2,UNPID,(P4) ;STORE INTO UN BLOCK
MOVE T2,EPBCBI(Q2) ;GET USER'S CALLBACK ID
STOR T2,UNUID,(P4) ;STORE INTO UN BLOCK
LDB T2,EPPSTS ;GET CURRENT PROTOCOL STATE
CAIE T2,.PSENA ;IS PROTOCOL ENABLED?
TDZA T2,T2 ;NO, CLEAR RUN FLAG
MOVEI T2,1 ;YES, SET RUN FLAG
STOR T2,UNRUN,(P4) ;STORE RUN FLAG
MOVE T2,P4 ;GET UN BLOCK ADDRESS
MOVE T4,EPBCBA(Q2) ;GET USER'S CALLBACK ADDRESS
PUSHJ P,(T4) ;CALLBACK USER
JFCL ;IGNORE NON-SKIP RETURN
POPJ P, ;RETURN
SUBTTL ETHERNET USER SERVICE -- GENERATE AN EA BLOCK
;ROUTINE CALLED TO GENERATE AN EA BLOCK FOR A PROTOCOL
;LINKAGE:
; T1/ KONTROLLER FUNCTION CODE (EK.XXX)
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,GENEAB
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS WITH:
; P3/ ADDRESS OF EA BLOCK
GENEAB: PUSH P,T1 ;SAVE FUNCTION CODE
MOVEI T2,.EALEN ;GET LENGTH OF EA BLOCK
PUSHJ P,GETEWZ## ;ALLOCATE ZEROED CORE FOR EA BLOCK
PJRST [POP P,(P) ;ERROR, CLEAR STACK
ERRRET (UNRES%)] ;AND GIVE ERROR RETURN
MOVE P3,T1 ;GET ADDRESS OF EA BLOCK
POP P,.EAFCN(P3) ;SAVE FUNCTION CODE IN EA BLOCK
MOVEM Q2,.EAFCP(P3) ;SAVE ADDRESS OF PORTAL BLOCK IN EA BLOCK
PJRST CPOPJ1## ;AND RETURN
SUBTTL ETHERNET USER SERVICE -- RELEASE EA BLOCK
;ROUTINE CALLED TO RELEASE AN EA BLOCK
;LINKAGE:
; P3/ ADDRESS OF EA BLOCK
; PUSHJ P,GIVEAB
;RETURNS:
; CPOPJ ALWAYS
GIVEAB: MOVEI T1,.EALEN ;GET LENGTH OF EA BLOCK
MOVE T2,P3 ;AND ADDRESS OF EA BLOCK
PJRST GIVEWS## ;RELEASE EA BLOCK AND RETURN
SUBTTL ETHERNET USER SERVICE -- CALL ETHERNET KONTROLLER
;ROUTINE TO CALL AN ETHERNET KONTROLLER
;LINKAGE:
; T1/ ADDRESS OF COMPLETION ROUTINE
; T2-T4/ FUNCTION COMPLETION DATA
; P3/ ADDRESS OF EA BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK (OR ZERO)
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,CALKON
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; T2-T4/ FUNCTION COMPLETION DATA
; CPOPJ1 ON SUCCESS
CALKON: JUMPE Q3,CALKOX ;JUMP IF NO KONTROLLER BLOCK
MOVEM T1,.EAFCA(P3) ;STORE FUNCTION COMPLETION ROUTINE ADDRESS
DMOVEM T2,.EAFCD(P3) ;STORE FUNCTION COMPLETION DATA
MOVEM T4,.EAFCD+2(P3) ;STORE FUNCTION COMPLETION DATA
MOVE T1,P3 ;GET ADDRESS OF EA BLOCK
MOVE T2,EKBKKB(Q3) ;AND ADDRESS OF KONTROLLER'S KONTROLLER BLOCK
SKIPE T3,Q2 ;HAVE AN ETHERNET PORTAL BLOCK?
MOVE T3,EPBKPB(Q2) ;YES, GET KONTROLLER'S PROTOCOL BLOCK
MOVE T4,EKBKDA(Q3) ;GET ADDRESS OF KONTROLLER'S DISPATCH ROUTINE
PUSHJ P,(T4) ;DISPATCH TO KONTROLLER
SKIPA ;ERROR, RESTORE FUNCTION COMPLETION DATA
PJRST CPOPJ1## ;SUCCESS, RETURN
DMOVE T2,.EAFCD(P3) ;RESTORE FUNCTION COMPLETION DATA
MOVE T4,.EAFCD+2(P3) ;...
POPJ P, ;AND RETURN
CALKOX: MOVE Q2,.EAFCP(P3) ;GET ADDRESS OF ETHERNET PORTAL BLOCK
PUSHJ P,(T1) ;CALL COMPLETION ROUTINE
PJRST CPOPJ1## ;AND RETURN
SUBTTL ETHERNET CHANNEL SUPPORT -- CREATE ETHERNET CHANNEL BLOCK
;ROUTINE TO CREATE AN ETHERNET CHANNEL BLOCK
;LINKAGE:
; PUSHJ P,GENECB
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS WITH:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
GENECB: MOVEI T2,ECBLEN ;GET SIZE OF ETHERNET CHANNEL BLOCK
PUSHJ P,GETEWZ## ;ALLOCATE ZEROED CORE FOR CHANNEL BLOCK
STOPCD [ERRRET (UNRES%)],DEBUG,ETHCCC ;++CAN'T CREATE CHANNEL BLOCK
MOVE Q1,T1 ;SAVE ADDRESS IN Q1
AOS T1,%EINEC ;INCREMENT NUMBER OF CHANNELS
SUBI T1,1 ;CONVERT COUNT INTO CHANNEL ID
MOVEM T1,ECBCID(Q1) ;SET CHANNEL ID
ETHLOK ;INTERLOCK AGAINST SMP RACES
XMOVEI T4,%EICHN-ECBSYS ;SET UP POINTER TO FIRST-1 CHANNEL BLOCK
GENEC1: MOVE T3,ECBSYS(T4) ;GET ADDRESS OF NEXT CHANNEL BLOCK
JUMPE T3,GENEC2 ;JUMP AT END OF CHANNEL LIST
MOVE T4,T3 ;SAVE POINTER TO PREVIOUS CHANNEL BLOCK
JRST GENEC1 ;LOOP BACK TO FIND END OF LIST
GENEC2: MOVEM Q1,ECBSYS(T4) ;LINK THIS CHANNEL AT END OF LIST
SETZM ECBSYS(Q1) ;...
ETHULK ;RELEASE SMP INTERLOCK
PJRST CPOPJ1## ;AND RETURN
SUBTTL ETHERNET CHANNEL SUPPORT -- GENERATE CHANNEL STATUS WORD
;ROUTINE TO GENERATE CHANNEL STATUS WORD
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; PUSHJ P,GENCSW
;RETURNS:
; CPOPJ ALWAYS WITH:
; T1/ CHANNEL STATUS WORD
;MUST PRESERVE T3-T4
GENCSW: SETZ T1, ;START WITH ZERO
MOVE T2,ECBSTS(Q1) ;GET CHANNEL STATUS
TXNE T2,ECSONL ;IS CHANNEL ONLINE?
TXO T1,ET.CON ;YES, SET ONLINE FLAG
MOVE T2,ECBCID(Q1) ;GET CHANNEL ID
DPB T2,[POINTR (T1,ET.CID)] ;STORE IN CHANNEL STATUS WORD
POPJ P, ;AND RETURN
SUBTTL ETHERNET CHANNEL SUPPORT -- FIND ETHERNET CHANNEL BLOCK
;ROUTINE TO FIND AN ETHERNET CHANNEL BLOCK GIVEN CHANNEL ID
;LINKAGE:
; T1/ CHANNEL ID
; PUSHJ P,FNDECB
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE
; CPOPJ1 ON SUCCESS WITH:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
FNDECB: ANDX T1,ET.CID ;MASK TO JUST CHANNEL ID
ETHLOK ;INTERLOCK AGAINST SMP RACES
SKIPA Q1,%EICHN ;GET ADDRESS OF FIRST ETHERNET CHANNEL BLOCK
FNDEC1: MOVE Q1,ECBSYS(Q1) ;GET ADDRESS OF NEXT ETHERNET CHANNEL BLOCK
JUMPE Q1,[ERRRET (UNNSC%,UNLETH##)] ;ERROR, NO SUCH CHANNEL
CAME T1,ECBCID(Q1) ;FOUND CORRECT CHANNEL BLOCK?
JRST FNDEC1 ;NO, LOOP THROUGH ALL CHANNELS
ETHULK ;RELEASE SMP INTERLOCK
PJRST CPOPJ1## ;RETURN
SUBTTL ETHERNET PORTAL SUPPORT -- GENERATE ETHERNET PORTAL ID
;ROUTINE TO GENERATE AN ETHERNET PORTAL ID
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,GENPID
;RETURNS:
; CPOPJ ALWAYS WITH:
; T1/ PORTAL ID
GENPID: SETZ T1, ;START WITH ZERO
MOVE T2,ECBCID(Q1) ;GET ETHERNET CHANNEL ID
DPB T2,PIPECN ;STORE IN PORTAL ID
DPB Q2,PIPEPB ;INCLUDE ETHERNET PORTAL BLOCK ADDRESS
POPJ P, ;AND RETURN
SUBTTL ETHERNET PORTAL SUPPORT -- GENERATE PORTAL STATUS WORD
;ROUTINE TO GENERATE PORTAL STATUS WORD
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,GENPSW
;RETURNS:
; CPOPJ ALWAYS WITH:
; T1/ PORTAL STATUS WORD
;MUST PRESERVE T3-T4
GENPSW: SETZ T1, ;START WITH ZERO
LDB T2,EPPSTS ;GET CURRENT PROTOCOL STATUS
CAIN T2,.PSENA ;IS PROTOCOL ENABLED?
TXO T1,ET.PON ;YES, MARK PROTOCOL AS ONLINE
MOVE T2,EPBPID(Q2) ;GET PORTAL ID
DPB T2,[POINTR (T1,ET.PID)] ;STORE IN PORTAL STATUS WORD
POPJ P, ;AND RETURN
SUBTTL ETHERNET PORTAL SUPPORT -- FIND ETHERNET PORTAL BLOCK
;ROUTINE TO FIND AN ETHERNET PORTAL BLOCK GIVEN PORTAL ID
;LINKAGE:
; T1/ PORTAL ID
; PUSHJ P,FNDEPB
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS WITH:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
FNDEPB: ANDX T1,ET.PID ;MASK TO JUST PORTAL ID
LDB Q2,PIPEPB ;GET ETHERNET PORTAL BLOCK ADDRESS
LDB T1,PIPECN ;GET ETHERNET CHANNEL ID
PUSHJ P,FNDECB ;FIND THE ETHERNET CHANNEL BLOCK
POPJ P, ;ERROR, ERROR CODE ALREADY IN T1
ETHLOK ;INTERLOCK AGAINST SMP RACES
SKIPA T1,ECBEPB(Q1) ;GET ADDRESS OF FIRST ETHERNET PORTAL BLOCK
FNDEP1: MOVE T1,EPBNXT(T1) ;GET ADDRESS OF NEXT ETHERNET PORTAL BLOCK
JUMPE T1,[ERRRET (UNNSP%,UNLETH##)] ;ERROR, NO SUCH PORTAL
CAME T1,Q2 ;FOUND CORRECT PORTAL BLOCK?
JRST FNDEP1 ;NO, LOOP THROUGH ALL PORTALS
MOVE Q3,EPBEKB(Q2) ;GET ADDRESS OF ETHERNET KONTROLLER BLOCK
ETHULK ;RELEASE SMP INTERLOCK
PJRST CPOPJ1## ;YES, RETURN
SUBTTL ETHERNET PORTAL SUPPORT -- ADD ETHERNET PORTAL BLOCK
;ROUTINE TO ADD AN ETHERNET PORTAL TO AN ETHERNET CHANNEL
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,ADDEPB
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
ADDEPB: ETHLOK ;INTERLOCK AGAINST SMP RACES
XMOVEI T4,ECBEPB-EPBNXT(Q1) ;SETUP POINTER TO FIRST PORTAL BLOCK
ADDEP1: MOVE T3,EPBNXT(T4) ;GET POINTER TO NEXT PORTAL BLOCK
JUMPE T3,ADDEP2 ;JUMP AT END OF PORTAL LIST
MOVE T1,EPBPTY(T3) ;GET THIS PORTAL'S PROTOCOL TYPE
CAMN T1,EPBPTY(Q2) ;CONFLICT WITH NEW PORTAL'S PROTOCOL TYPE?
AOJN T1,[ERRRET (UNPIU%,UNLETH##)] ;YES, ERROR IF NOT INFO PORTAL
MOVE T4,T3 ;SAVE POINTER TO PREVIOUS PORTAL BLOCK
JRST ADDEP1 ;LOOP BACK TO CHECK ALL PORTALS
ADDEP2: MOVEM Q2,EPBNXT(T4) ;POINT PREVIOUS PORTAL TO NEW PORTAL BLOCK
SETZM EPBNXT(Q2) ;TERMINATE LIST WITH THIS PORTAL BLOCK
ETHULK ;RELEASE SMP INTERLOCK
PJRST CPOPJ1## ;AND RETURN
SUBTTL ETHERNET PORTAL SUPPORT -- DELETE ETHERNET PORTAL BLOCK
;ROUTINE TO DELETE AN ETHERNET PORTAL FROM AN ETHERNET CHANNEL
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,DELEPB
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
DELEPB: ETHLOK ;INTERLOCK AGAINST SMP RACES
XMOVEI T4,ECBEPB-EPBNXT(Q1) ;SETUP POINTER TO FIRST PORTAL BLOCK
DELEP1: MOVE T3,EPBNXT(T4) ;GET POINTER TO NEXT PORTAL BLOCK
JUMPE T3,[ERRRET (UNNSP%,UNLETH##)] ;ERROR IF NO MORE PORTAL BLOCKS
CAMN T3,Q2 ;FOUND SUBJECT PORTAL BLOCK?
JRST DELEP2 ;YES, EXIT LOOP
MOVE T4,T3 ;SAVE POINTER TO PREVIOUS PORTAL BLOCK
JRST DELEP1 ;LOOP BACK TO CHECK ALL PORTALS
DELEP2: MOVE T3,EPBNXT(T3) ;GET POINTER TO NEXT PORTAL BLOCK
MOVEM T3,EPBNXT(T4) ;POINT PREVIOUS PORTAL TO NEXT PORTAL BLOCK
ETHULK ;RELEASE SMP INTERLOCK
PJRST CPOPJ1## ;AND RETURN
SUBTTL ETHERNET PORTAL SUPPORT -- FIND MULTI-CAST ADDRESS
;ROUTINE TO FIND A MULTI-CAST ADDRESS BELONGING TO A PORTAL
;LINKAGE:
; T1-T2/ MULTI-CAST ADDRESS
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,FNDMCA
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS WITH:
; T1/ ADDRESS OF MULTI-CAST ADDRESS BLOCK
FNDMCA: PUSHJ P,SAVE4## ;SAVE P1-P4
DMOVE P1,T1 ;SAVE MULTI-CAST ADDRESS
ETHLOK ;INTERLOCK AGAINST RACES
XMOVEI P4,EPBEMB-EMBNXT(Q2) ;SETUP POINTER TO FIRST MULTI-CAST BLOCK
FNDMC1: MOVE P3,EMBNXT(P4) ;GET POINTER TO NEXT MULTI-CAST BLOCK
JUMPE P3,[ERRRET (UNIMA%,UNLETH##)] ;ERROR IF END OF MULTI-CAST LIST
CAMN P1,EMBMCA(P3) ;MATCH SUBJECT MULTI-CAST ADDRESS?
CAME P2,EMBMCA+1(P3) ;...
SKIPA ;NO, CONTINUE SEARCHING
JRST FNDMC2 ;YES, EXIT LOOP
MOVE P4,P3 ;SAVE POINTER TO PREVIOUS MULTI-CAST BLOCK
JRST FNDMC1 ;LOOP BACK TO CHECK ALL MULTI-CAST BLOCKS
FNDMC2: MOVE T1,P3 ;GET ADDRESS OF MULTI-CAST ADDRESS BLOCK
ETHULK ;RELEASE SMP INTERLOCK
PJRST CPOPJ1## ;AND RETURN
SUBTTL ETHERNET PORTAL SUPPORT -- ADD MULTI-CAST ADDRESS
;ROUTINE TO ADD A MULTI-CAST ADDRESS TO A PORTAL
;LINKAGE:
; T1-T2/ MULTI-CAST ADDRESS
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,ADDMCA
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS WITH:
; T1/ ADDRESS OF MULTI-CAST ADDRESS BLOCK
ADDMCA: PUSHJ P,SAVE3## ;SAVE P1-P3
DMOVE P1,T1 ;SAVE MULTI-CAST ADDRESS
MOVEI T2,EMBLEN ;GET LENGTH OF MULTI-CAST ADDRESS BLOCK
PUSHJ P,GETEWZ## ;ALLOCATE ZEROED CORE FOR BLOCK
STOPCD [ERRRET (UNRES%)],DEBUG,ETHCCM ;++CAN'T CREATE MULTI-CAST BLOCK
MOVE P3,T1 ;SAVE ADDRESS OF MULTI-CAST BLOCK
DMOVEM P1,EMBMCA(P3) ;STORE MULTI-CAST ADDRESS
ETHLOK ;INTERLOCK AGAINST RACES
XMOVEI P2,EPBEMB-EMBNXT(Q2) ;SETUP POINTER TO FIRST MULTI-CAST BLOCK
ADDMC1: MOVE P1,EMBNXT(P2) ;GET POINTER TO NEXT MULTI-CAST BLOCK
JUMPE P1,ADDMC2 ;JUMP AT END OF MULTI-CAST LIST
DMOVE T1,EMBMCA(P1) ;GET MULTI-CAST ADDRESS
CAMN T1,EMBMCA(P3) ;MATCH SUBJECT MULTI-CAST ADDRESS?
CAME T2,EMBMCA+1(P3) ;...
SKIPA ;NO, CONTINUE SEARCHING
JRST ADDMC3 ;YES, EXIT LOOP
MOVE P2,P1 ;SAVE POINTER TO PREVIOUS MULTI-CAST BLOCK
JRST ADDMC1 ;LOOP BACK TO CHECK ALL MULTI-CAST BLOCKS
ADDMC2: MOVEM P3,EMBNXT(P2) ;LINK NEW BLOCK TO PREVIOUS MULTI-CAST BLOCK
MOVE T1,P3 ;GET ADDRESS OF NEW MULTI-CAST ADDRESS BLOCK
JRST ADDMC4 ;AND CONTINUE
ADDMC3: MOVEI T1,EMBLEN ;GET LENGTH OF MULTI-CAST BLOCK
MOVE T2,P3 ;AND ADDRESS OF BLOCK
PUSHJ P,GIVEWS## ;RELEASE DUPLICATE MULTI-CAST BLOCK
MOVE T1,P1 ;GET ADDRESS OF MULTI-CAST ADDRESS BLOCK
ADDMC4: ETHULK ;RELEASE SMP INTERLOCK
PJRST CPOPJ1## ;AND RETURN
SUBTTL ETHERNET PORTAL SUPPORT -- DELETE MULTI-CAST ADDRESS
;ROUTINE TO DELETE A MULTI-CAST ADDRESS FROM A PORTAL
;LINKAGE:
; T1-T2/ MULTI-CAST ADDRESS
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,DELMCA
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS
DELMCA: PUSHJ P,SAVE4## ;SAVE P1-P4
DMOVE P1,T1 ;SAVE MULTI-CAST ADDRESS
ETHLOK ;INTERLOCK AGAINST RACES
XMOVEI P4,EPBEMB-EMBNXT(Q2) ;SETUP POINTER TO FIRST MULTI-CAST BLOCK
DELMC1: MOVE P3,EMBNXT(P4) ;GET POINTER TO NEXT MULTI-CAST BLOCK
JUMPE P3,[ERRRET (UNIMA%,UNLETH##)] ;ERROR IF END OF MULTI-CAST LIST
CAMN P1,EMBMCA(P3) ;MATCH SUBJECT MULTI-CAST ADDRESS?
CAME P2,EMBMCA+1(P3) ;...
SKIPA ;NO, CONTINUE SEARCHING
JRST DELMC2 ;YES, EXIT LOOP
MOVE P4,P3 ;SAVE POINTER TO PREVIOUS MULTI-CAST BLOCK
JRST DELMC1 ;LOOP BACK TO CHECK ALL MULTI-CAST BLOCKS
DELMC2: MOVE T1,EMBNXT(P3) ;GET LINK TO NEXT BLOCK
MOVEM T1,EMBNXT(P4) ;UNLINK THIS MULTI-CAST ADDRESS BLOCK
MOVEI T1,EMBLEN ;GET LENGTH OF MULTI-CAST ADDRESS BLOCK
MOVE T2,P3 ;AND ADDRESS OF BLOCK
PUSHJ P,GIVEWS## ;DEALLOCATE MULTI-CAST ADDRESS BLOCK
ETHULK ;RELEASE SMP INTERLOCK
PJRST CPOPJ1## ;AND RETURN
SUBTTL ETHERNET PORTAL SUPPORT -- ENABLE PROTOCOL
;ROUTINE CALLED TO ENABLE A PROTOCOL
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,ETHEPT
;RETURNS:
; CPOPJ ALWAYS
ETHEPT: XMOVEI T1,EPTTB1 ;GET ADDRESS OF STATE TRANSITION TABLE
PJRST PSTDSP ;DISPATCH BASED ON PROTOCOL STATE
;ENABLE PROTOCOL STATE TRANSITION TABLE
EPTTB1: XWD .PSEIP, ETHEP1 ;(0) DISABLED
XWD .PSEIP, ETHEP1 ;(1) DISABLED, WANT TO ENABLE
XWD -1, CPOPJ## ;(2) ENABLE IN PROGRESS
XWD -1, CPOPJ## ;(3) ENABLE IN PROGRESS, WANT TO DISABLE
XWD -1, CPOPJ## ;(4) ENABLED
XWD -1, CPOPJ## ;(5) ENABLED, WANT TO DISABLE
XWD -1, CPOPJ## ;(6) DISABLE IN PROGRESS
;HERE TO START THE ENABLE OF A PROTOCOL
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,ETHEP1
;RETURNS:
; CPOPJ ALWAYS
ETHEP1: PUSHJ P,SAVP3## ;SAVE P3
PUSHJ P,SELEKB ;SELECT A KONTROLLER FOR THIS PROTOCOL
JRST ETHEP2 ;IF NONE, GO SET DISABLED, WANT TO ENABLE STATE
MOVEI T1,EK.EPT ;FUNCTION ENABLE PROTOCOL TYPE
PUSHJ P,GENEAB ;GENERATE AN EA BLOCK
PJRST ETHEP2 ;ERROR, GO SET DISABLED, WANT TO ENABLE STATE
MOVE T1,EPBPTY(Q2) ;GET PROTOCOL TYPE
MOVEM T1,.EAPTY(P3) ;STORE IN EA BLOCK
LDB T1,EPPPAD ;GET PROTOCOL PADDING FLAG
MOVEM T1,.EAPAD(P3) ;STORE IN EA BLOCK
MOVEM Q2,.EAPPB(P3) ;STORE ADDRESS OF PORTAL BLOCK
XMOVEI T1,ETCEPT ;GET ADDRESS OF COMPLETION ROUTINE
PUSHJ P,CALKON ;CALL KONTROLLER
JRST [PUSHJ P,GIVEAB ;ERROR, RELEASE EA BLOCK
PJRST ETHEP2] ;GO SET DISABLED, WANT TO ENABLE STATE
POPJ P, ;RETURN
ETHEP2: SETZB Q3,EPBEKB(Q2) ;ZERO KONTROLLER BLOCK ADDRESS
XMOVEI T1,EPTTB2 ;GET ADDRESS OF STATE TRANSITION TABLE
PJRST PSTDSP ;DISPATCH BASED ON PROTOCOL STATE
;ENABLE PROTOCOL PENDING STATE TRANSITION TABLE
EPTTB2: XWD -1, CPOPJ## ;(0) DISABLED
XWD -1, CPOPJ## ;(1) DISABLED, WANT TO ENABLE
XWD .PSDWE, CPOPJ## ;(2) ENABLE IN PROGRESS
XWD .PSDIS, ETCDP1 ;(3) ENABLE IN PROGRESS, WANT TO DISABLE
XWD -1, CPOPJ## ;(4) ENABLED
XWD -1, CPOPJ## ;(5) ENABLED, WANT TO DISABLE
XWD -1, CPOPJ## ;(6) DISABLE IN PROGRESS
;ROUTINE CALLED ON ENABLE PROTOCOL COMPLETION INTERRUPT
;LINKAGE: (CALLED AT INTERRUPT LEVEL)
; P3/ ADDRESS OF EA BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETCEPT
;RETURNS:
; CPOPJ ALWAYS
ETCEPT: XMOVEI T1,EPTTB3 ;GET ADDRESS OF STATE TRANSITION TABLE
PUSHJ P,PSTDSP ;DISPATCH BASED ON PROTOCOL STATE
PJRST GIVEAB ;RELEASE EA BLOCK AND RETURN
;ENABLE PROTOCOL DONE STATE TRANSITION TABLE
EPTTB3: XWD -1, ETHEPX ;(0) DISABLED
XWD -1, ETHEPX ;(1) DISABLED, WANT TO ENABLE
XWD .PSENA, ETCEP1 ;(2) ENABLE IN PROGRESS
XWD .PSEWD, ETCEP1 ;(3) ENABLE IN PROGRESS, WANT TO DISABLE
XWD -1, ETHEPX ;(4) ENABLED
XWD -1, ETHEPX ;(5) ENABLED, WANT TO DISABLE
XWD -1, ETHEPX ;(6) DISABLE IN PROGRESS
ETCEP1: MOVE T1,.EAPPB(P3) ;GET ADDRESS OF KONTROLLER'S PROTOCOL BLOCK
MOVEM T1,EPBKPB(Q2) ;SAVE IN PORTAL BLOCK
PUSHJ P,CALSTS ;GIVE USER STATUS CHANGE CALLBACK
LDB T1,EPPSTS ;GET CURRENT PORTAL STATUS
CAIN T1,.PSEWD ;ENABLED, WANT TO DISABLE?
PJRST ETHDPT ;YES, INITIATE DISABLE OF PROTOCOL
POPJ P, ;NO, RETURN
;HERE ON AN UNEXPECTED PROTOCOL STATE TRANSITION
ETHEPX: STOPCD CPOPJ##,DEBUG,ETHUES ;++UNEXPECTED ENABLE PROTOCOL STATE
SUBTTL ETHERNET PORTAL SUPPORT -- DISABLE PROTOCOL
;ROUTINE CALLED TO DISABLE A PROTOCOL
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,ETHDPT
;RETURNS:
; CPOPJ ALWAYS
ETHDPT: XMOVEI T1,DPTTB1 ;GET ADDRESS OF STATE TRANSITION TABLE
PJRST PSTDSP ;DISPATCH BASED ON PROTOCOL STATE
;DISABLE PROTOCOL STATE TRANSITION TABLE
DPTTB1: XWD -1, CPOPJ## ;(0) DISABLED
XWD .PSDIS, ETCDP1 ;(1) DISABLED, WANT TO ENABLE
XWD .PSEPD, CPOPJ## ;(2) ENABLE IN PROGRESS
XWD -1, CPOPJ## ;(3) ENABLE IN PROGRESS, WANT TO DISABLE
XWD .PSDIP, ETHDP1 ;(4) ENABLED
XWD .PSDIP, ETHDP1 ;(5) ENABLED, WANT TO DISABLE
XWD -1, CPOPJ## ;(6) DISABLE IN PROGRESS
;HERE TO START THE DISABLE OF A PROTOCOL
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,ETHDP1
;RETURNS:
; CPOPJ ALWAYS
ETHDP1: PUSHJ P,SAVP3## ;SAVE P3
PUSHJ P,CALSTS ;GIVE USER STATUS CHANGE CALLBACK
MOVEI T1,EK.DPT ;FUNCTION DISABLE PROTOCOL TYPE
PUSHJ P,GENEAB ;GENERATE AN EA BLOCK
PJRST ETHDP2 ;ERROR, GO SET ENABLED, WANT TO DISABLE STATE
MOVE T1,EPBPTY(Q2) ;GET PROTOCOL TYPE
MOVEM T1,.EAPTY(P3) ;STORE IN EA BLOCK
LDB T1,EPPPAD ;GET PROTOCOL PADDING FLAG
MOVEM T1,.EAPAD(P3) ;STORE IN EA BLOCK
MOVEM Q2,.EAPPB(P3) ;STORE ADDRESS OF PORTAL BLOCK
XMOVEI T1,ETCDPT ;GET ADDRESS OF COMPLETION ROUTINE
PUSHJ P,CALKON ;CALL KONTROLLER
JRST [PUSHJ P,GIVEAB ;ERROR, RELEASE EA BLOCK
PJRST ETHDP2] ;GO SET ENABLED, WANT TO DISABLE STATE
POPJ P, ;RETURN
ETHDP2: XMOVEI T1,DPTTB2 ;GET ADDRESS OF STATE TRANSITION TABLE
PJRST PSTDSP ;DISPATCH BASED ON PROTOCOL STATE
;DISABLE PROTOCOL PENDING STATE TRANSITION TABLE
DPTTB2: XWD -1, CPOPJ## ;(0) DISABLED
XWD -1, CPOPJ## ;(1) DISABLED, WANT TO ENABLE
XWD -1, CPOPJ## ;(2) ENABLE IN PROGRESS
XWD -1, CPOPJ## ;(3) ENABLE IN PROGRESS, WANT TO DISABLE
XWD -1, CPOPJ## ;(4) ENABLED
XWD -1, CPOPJ## ;(5) ENABLED, WANT TO DISABLE
XWD .PSEWD, CPOPJ## ;(6) DISABLE IN PROGRESS
;ROUTINE CALLED ON DISABLE PROTOCOL COMPLETION INTERRUPT
;LINKAGE: (CALLED AT INTERRUPT LEVEL)
; P3/ ADDRESS OF EA BLOCK
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETCDPT
;RETURNS:
; CPOPJ ALWAYS
ETCDPT: XMOVEI T1,DPTTB3 ;GET ADDRESS OF STATE TRANSITION TABLE
PUSHJ P,PSTDSP ;DISPATCH BASED ON PROTOCOL STATE
PJRST GIVEAB ;RELEASE EA BLOCK AND RETURN
;DISABLE PROTOCOL DONE STATE TRANSITION TABLE
DPTTB3: XWD -1, ETHDPX ;(0) DISABLED
XWD -1, ETHDPX ;(1) DISABLED, WANT TO ENABLE
XWD -1, ETHDPX ;(2) ENABLE IN PROGRESS
XWD -1, ETHDPX ;(3) ENABLE IN PROGRESS, WANT TO DISABLE
XWD -1, ETHDPX ;(4) ENABLED
XWD -1, ETHDPX ;(5) ENABLED, WANT TO DISABLE
XWD .PSDIS, ETCDP1 ;(6) DISABLE IN PROGRESS
ETCDP1: SETZB Q3,EPBEKB(Q2) ;ZERO KONTROLLER BLOCK ADDRESS
MOVX T1,EPSOPN ;IS PORTAL OPEN?
TDNE T1,EPBSTS(Q2) ;...
PJRST ETHEPT ;YES, GO TRY TO ENABLE PROTOCOL
PUSHJ P,SAVP4## ;SAVE P4
XMOVEI P4,EPBCBU(Q2) ;GET ADDRESS OF CALLBACK UN BLOCK
MOVE T1,EPBPTY(Q2) ;GET PROTOCOL TYPE CODE
STOR T1,UNPRO,(P4) ;STORE IN UN BLOCK
MOVEI T1,NU.CLO ;GIVE USER CLOSE PORTAL CALLBACK
PUSHJ P,CALUSR ;...
PUSHJ P,DELEPB ;DELETE PORTAL BLOCK FROM ETHERNET CHANNEL
JFCL ;DON'T CARE IF ERROR
MOVEI T1,EPBLEN ;GET LENGTH OF PORTAL BLOCK
MOVE T2,Q2 ;AND ADDRESS OF PORTAL BLOCK
PJRST GIVEWS## ;RELEASE PORTAL BLOCK AND RETURN
;HERE ON AN UNEXPECTED PROTOCOL STATE TRANSITION
ETHDPX: STOPCD CPOPJ##,DEBUG,ETHUDS ;++UNEXPECTED DISABLE PROTOCOL STATE
SUBTTL ETHERNET PORTAL SUPPORT -- PROTOCOL STATE TRANSTITION
;ROUTINE CALLED FOR PROTOCOL STATE TRANSITIONS
;LINKAGE:
; T1/ ADDRESS OF STATE TRANSITION TABLE
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,PSTDSP
;RETURNS:
; CPOPJ OR CPOPJ1 BASED ON TRANSITION ROUTINE
PSTDSP: ETHLOK ;INTERLOCK AGAINST SMP RACES
LDB T2,EPPSTS ;GET CURRENT PROTOCOL STATUS
CAILE T2,.PSMAX ;RANGE CHECK PROTOCOL STATUS
STOPCD UNLETH##,DEBUG,ETHIPS ;++INVALID PROTOCOL STATE
ADD T1,T2 ;COMPUTE DISPATCH TABLE OFFSET
HLRE T3,(T1) ;GET NEW PROTOCOL STATE
JUMPL T3,PSTDS1 ;JUMP IF NO CHANGE OF STATE
DPB T2,EPPPST ;SAVE PREVIOUS STATE
DPB T3,EPPSTS ;STORE UPDATED PROTOCOL STATUS
PSTDS1: ETHULK ;RELEASE SMP INTERLOCK
HRRZ T3,(T1) ;GET LOCAL ADDRESS OF ROUTINE
PJRST (T3) ;DISPATCH TO TRANSITION ROUTINE AND RETURN
SUBTTL ETHERNET KONTROLLER SUPPORT -- CREATE KONTROLLER BLOCK
;ROUTINE TO CREATE AN ETHERNET KONTROLLER BLOCK
;LINKAGE:
; PUSHJ P,GENEKB
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS WITH:
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
GENEKB: MOVEI T2,EKBLEN ;GET LENGTH OF ETHERNET KONTROLLER BLOCK
S0PSHJ AUTCOR## ;ALLOCATE ZEROED CORE FOR KONTROLLER BLOCK
ERRRET (UNRES%) ;ERROR, NO RESOURCES
MOVE Q3,T1 ;SAVE ADDRESS OF ETHERNET KONTROLLER BLOCK
AOS T1,%EINEK ;INCREMENT NUMBER OF KONTROLLERS
MOVEM T1,EKBKID(Q3) ;SET KONTROLLER ID
ETHLOK ;INTERLOCK AGAINST SMP RACES
XMOVEI T4,%EIKON-EKBSYS ;SET UP POINTER TO FIRST-1 KONTROLLER BLOCK
GENEK1: MOVE T3,EKBSYS(T4) ;GET ADDRESS OF NEXT KONTROLLER BLOCK
JUMPE T3,GENEK2 ;JUMP AT END OF KONTROLLER LIST
MOVE T4,T3 ;SAVE POINTER TO PREVIOUS KONTROLLER BLOCK
JRST GENEK1 ;LOOP BACK TO FIND END OF LIST
GENEK2: MOVEM Q3,EKBSYS(T4) ;LINK THIS KONTROLLER AT END OF LIST
SETZM EKBSYS(Q3) ;...
ETHULK ;RELEASE SMP INTERLOCK
PJRST CPOPJ1## ;AND RETURN
SUBTTL ETHERNET KONTROLLER SUPPORT -- GENERATE KONTROLLER STATUS WORD
;ROUTINE TO GENERATE KONTROLLER STATUS WORD
;LINKAGE:
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,GENKSW
;RETURNS:
; CPOPJ ALWAYS WITH:
; T1/ KONTROLLER STATUS WORD
;MUST PRESERVE T3-T4
GENKSW: SETZ T1, ;START WITH ZERO
MOVE T2,EKBSTS(Q3) ;GET KONTROLLER STATUS
TXNE T2,EKSONL ;IS KONTROLLER ONLINE?
TXO T1,ET.KON ;YES, MARK KONTROLLER AS ONLINE
MOVE T2,EKBKID(Q3) ;GET KONTROLLER ID
DPB T2,[POINTR (T1,ET.KID)] ;STORE IN KONTROLLER STATUS WORD
POPJ P, ;AND RETURN
SUBTTL ETHERNET KONTROLLER SUPPORT -- SELECT AN ETHERNET KONTROLLER
;ROUTINE TO SELECT AN ETHERNET KONTROLLER FOR AN ETHERNET PORTAL
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q2/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,SELEKB
;RETURNS:
; CPOPJ ON ERROR
; CPOPJ1 ON SUCCESS WITH:
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
SELEKB: ETHLOK ;INTERLOCK AGAINST SMP RACES
SETZ T2, ;USED TO REMEMBER FIRST USABLE KONTROLLER
SKIPA Q3,ECBEKB(Q1) ;GET ADDRESS OF FIRST KONTROLLER
SELEK1: MOVE Q3,EKBNXT(Q3) ;GET ADDRESS OF NEXT KONTROLLER
JUMPE Q3,[MOVE Q3,T2 ;IF NONE, GET REMEMBERED KONTROLLER'S ADDRESS
JRST SELEK2] ;AND EXIT LOOP
MOVX T1,EKSONL ;IS KONTROLLER ONLINE?
TDNN T1,EKBSTS(Q3) ;...
JRST SELEK1 ;NO, LOOP BACK TO CHECK NEXT KONTROLLER
SKIPN T2 ;ALREADY REMEMBERED FIRST USABLE KONTROLLER?
MOVE T2,Q3 ;NO, REMEMBER THIS KONTROLLER
LDB T1,EKPCPU ;GET CPU NUMBER OF ETHERNET KONTROLLER
CAME T1,.CPCPN## ;ACCESSIBLE BY THIS CPU?
JRST SELEK1 ;NO, LOOP BACK TO CHECK NEXT KONTROLLER
SELEK2: MOVEM Q3,EPBEKB(Q2) ;STORE KONTROLLER BLOCK ADDRESS IN PORTAL BLOCK
ETHULK ;RELEASE SMP INTERLOCK
PJUMPN Q3,CPOPJ1## ;AND RETURN
POPJ P, ;...
SUBTTL ETHERNET KONTROLLER SUPPORT -- FIND ETHERNET KONTROLLER BLOCK
;ROUTINE TO FIND AN ETHERNET KONTROLLER BLOCK GIVEN KONTROLLER ID
;LINKAGE:
; T1/ KONTROLLER ID
; PUSHJ P,FNDEKB
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS WITH:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
FNDEKB: ANDX T1,ET.KID ;MASK TO JUST KONTROLLER ID
ETHLOK ;INTERLOCK AGAINST SMP RACES
SKIPA Q1,%EICHN ;GET ADDRESS OF FIRST ETHERNET CHANNEL BLOCK
FNDEK1: MOVE Q1,ECBSYS(Q1) ;GET ADDRESS OF NEXT ETHERNET CHANNEL BLOCK
JUMPE Q1,[ERRRET (UNNSK%,UNLETH##)] ;ERROR, NO SUCH KONTROLLER
SKIPA Q3,ECBEKB(Q1) ;GET ADDRESS OF FIRST ETHERNET KONTROLLER BLOCK
FNDEK2: MOVE Q3,EKBNXT(Q3) ;GET ADDRESS OF NEXT ETHERNET KONTROLLER BLOCK
JUMPE Q3,FNDEK1 ;END OF KONTROLLER LIST, TRY NEXT CHANNEL
CAME T1,EKBKID(Q3) ;FOUND CORRECT KONTROLLER BLOCK?
JRST FNDEK2 ;NO, LOOP THROUGH ALL KONTROLLERS
ETHULK ;RELEASE SMP INTERLOCK
PJRST CPOPJ1## ;RETURN
SUBTTL ETHERNET KONTROLLER SUPPORT -- ADD ETHERNET KONTROLLER BLOCK
;ROUTINE TO ADD AN ETHERNET KONTROLLER TO AN ETHERNET CHANNEL
;LINKAGE:
; Q1/ ADDRESS OF ETHERNET CHANNEL BLOCK
; Q3/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ADDEKB
;RETURNS:
; CPOPJ ALWAYS
ADDEKB: ETHLOK ;INTERLOCK AGAINST SMP RACES
XMOVEI T4,ECBEKB-EKBNXT(Q1) ;SETUP POINTER TO FIRST KONTROLLER BLOCK
ADDEK1: MOVE T3,EKBNXT(T4) ;GET POINTER TO NEXT KONTROLLER BLOCK
JUMPE T3,ADDEK2 ;JUMP AT END OF KONTROLLER LIST
CAMN T3,Q3 ;KONTROLLER ALREADY IN LIST?
PJRST UNLETH## ;YES, RELEASE SMP INTERLOCK AND RETURN
MOVE T4,T3 ;SAVE POINTER TO PREVIOUS KONTROLLER BLOCK
JRST ADDEK1 ;LOOP BACK TO FIND END OF LIST
ADDEK2: MOVEM Q3,EKBNXT(T4) ;POINT PREVIOUS KONTROLLER TO NEW KONTROLLER
SETZM EKBNXT(Q3) ;TERMINATE LIST WITH THIS KONTROLLER BLOCK
MOVEM Q1,EKBECB(Q3) ;SAVE ADDRESS OF ETHERNET CHANNEL BLOCK
PJRST UNLETH## ;RELEASE SMP INTERLOCK AND RETURN
SUBTTL ETHERNET INTERRUPT SERVICE -- KONTROLLER INITIALIZATION
;ROUTINE CALLED BY DEVICE DRIVER WHEN A KONTROLLER IS INITIALIZED
;LINKAGE: (CALLED AT ONCE TIME)
; T1/ ADDRESS OF KONTROLLER'S KONTROLLER BLOCK
; T2/ ADDRESS OF KONTROLLER'S DISPATCH ROUTINE
; T3/ KONTROLLER TYPE,,KONTROLLER NUMBER
; PUSHJ P,ETKINI
;RETURNS:
; CPOPJ ON ERROR WITH:
; T1/ ERROR CODE (UNXXX%)
; CPOPJ1 ON SUCCESS WITH:
; T1/ ADDRESS OF ETHERNET KONTROLLER BLOCK
ETKINI::PUSHJ P,SAVE3## ;SAVE P1-P3
PUSHJ P,SAVQ## ;AND Q1-Q3
DMOVE P1,T1 ;SAVE KONTROLLER'S BLOCK AND ROUTINE ADDRESSES
MOVE P3,T3 ;SAVE KONTROLLER TYPE CODE
PUSHJ P,GENEKB ;CREATE AN ETHERNET KONTROLLER BLOCK
POPJ P, ;ERROR, ERROR CODE IN T1
MOVEM P1,EKBKKB(Q3) ;SAVE ADDRESS OF KONTROLLER'S KONTROLLER BLOCK
MOVEM P2,EKBKDA(Q3) ;AND ADDRESS OF KONTROLLER'S DISPATCH ROUTINE
MOVE T1,.CPCPN## ;GET OUR CPU NUMBER
DPB T1,EKPCPU ;SAVE IN KONTROLLER BLOCK
HLRZ T1,P3 ;GET KONTROLLER TYPE CODE
DPB T1,EKPKTY ;SAVE IN KONTROLLER BLOCK
HRRZ T1,P3 ;GET KONTROLLER NUMBER
DPB T1,EKPKNO ;SAVE IN KONTROLLER BLOCK
MOVE T1,Q3 ;GET ADDRESS OF ETHERNET KONTROLLER BLOCK
PJRST CPOPJ1## ;AND RETURN
SUBTTL ETHERNET INTERRUPT SERVICE -- KONTROLLER OFFLINE
;ROUTINE CALLED BY DEVICE DRIVER ON KONTROLLER OFFLINE
;LINKAGE:
; T1/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; PUSHJ P,ETKOFL
;RETURNS:
; CPOPJ ALWAYS
ETKOFL::PUSHJ P,SAVQ## ;SAVE Q1-Q3
MOVE Q3,T1 ;GET ADDRESS OF ETHERNET KONTROLLER BLOCK
MOVX T1,EKSONL ;MARK KONTROLLER AS OFFLINE
ANDCAM T1,EKBSTS(Q3) ;...
SKIPN Q1,EKBECB(Q3) ;GET ADDRESS OF ETHERNET CHANNEL BLOCK
POPJ P, ;NONE, JUST RETURN NOW
ETHLOK ;INTERLOCK AGAINST SMP RACES
SKIPA Q2,ECBEPB(Q1) ;GET ADDRESS OF FIRST ETHERNET PORTAL BLOCK
ETKOF1: MOVE Q2,EPBNXT(Q2) ;GET ADDRESS OF NEXT ETHERNET PORTAL BLOCK
JUMPE Q2,UNLETH## ;RETURN AT END OF PORTAL LIST
MOVE T1,EPBEKB(Q2) ;GET ADDRESS OF ASSIGNED KONTROLLER BLOCK
CAMN T1,Q3 ;MATCH OFFLINE KONTROLLER?
PUSHJ P,ETHDPT ;YES, INITIATE DISABLE OF PROTOCOL
JRST ETKOF1 ;LOOP BACK TO CHECK ALL PORTALS
SUBTTL ETHERNET INTERRUPT SERVICE -- KONTROLLER ONLINE
;ROUTINE CALLED BY DEVICE DRIVER ON KONTROLLER ONLINE
;LINKAGE:
; T1/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; T2-T3/ HARDWARE ETHERNET ADDRESS
; PUSHJ P,ETKONL
;RETURNS:
; CPOPJ ALWAYS
ETKONL::PUSHJ P,SAVQ## ;SAVE Q1-Q3
MOVE Q3,T1 ;GET ADDRESS OF ETHERNET KONTROLLER BLOCK
DMOVEM T2,EKBHEA(Q3) ;STORE HARDWARE ETHERNET ADDRESS
MOVX T1,EKSONL ;MARK KONTROLLER AS ONLINE
IORM T1,EKBSTS(Q3) ;...
SKIPE Q1,EKBECB(Q3) ;ALREADY ASSIGNED TO A CHANNEL?
JRST ETKON1 ;YES, DON'T NEED TO ADD KONTROLLER THEN
MOVE Q1,%EICHN ;GET ADDRESS OF ETHERNET CHANNEL BLOCK
PUSHJ P,ADDEKB ;ADD KONTROLLER TO CHANNEL
ETKON1: SKIPE ECBEAD(Q1) ;DOES CHANNEL HAVE AN ETHERNET ADDRESS?
JRST ETKON2 ;YES, SET KONTROLLER TO THAT ADDRESS
DMOVE T1,EKBHEA(Q3) ;NO, GET HARDWARE ADDRESS OF KONTROLLER
DMOVEM T1,ECBEAD(Q1) ;AND SET THAT UP AS CHANNEL'S ADDRESS
POPJ P, ;RETURN
ETKON2: MOVX T1,EKSSEA ;FLAG SET ETHERNET ADDRESS FUNCTION
IORM T1,EKBSTS(Q3) ;...
POPJ P, ;AND RETURN
SUBTTL ETHERNET INTERRUPT SERVICE -- KONTROLLER FUNCTION DONE
;ROUTINE CALLED BY DEVICE DRIVER ON KONTROLLER FUNCTION DONE
;LINKAGE:
; T1/ ADDRESS OF EA BLOCK
; T2/ ADDRESS OF ETHERNET KONTROLLER BLOCK
; T3/ ADDRESS OF ETHERNET PORTAL BLOCK
; PUSHJ P,ETKINT
;RETURNS:
; CPOPJ ALWAYS
ETKINT::PUSHJ P,SAVP3## ;SAVE P3
PUSHJ P,SAVQ## ;AND Q1-Q3
MOVE P3,T1 ;GET ADDRESS OF EA BLOCK
MOVE Q3,T2 ;AND ADDRESS OF ETHERNET KONTROLLER BLOCK
MOVE Q2,.EAFCP(P3) ;AND ADDRESS OF ETHERNET PORTAL BLOCK
MOVE Q1,EKBECB(Q3) ;GET ADDRESS OF ETHERNET CHANNEL BLOCK
DMOVE T2,.EAFCD(P3) ;GET COMPLETION DATA
MOVE T4,.EAFCD+2(P3) ;...
PJRST @.EAFCA(P3) ;DISPATCH TO COMPLETION ROUTINE AND RETURN
SUBTTL ETHERNET SUPPORT -- UPDATE ETHERNET COUNTERS
;ROUTINE CALLED TO UPDATE ETHERNET COUNTERS
;LINKAGE:
; T1/ LENGTH OF COUNTERS AREA
; T2/ ILDB BYTE POINTER TO UPDATE ACTION TABLE
; T3/ ADDRESS OF SOURCE COUNTERS AREA
; T4/ ADDRESS OF DESTINATION COUNTERS AREA
;RETURNS:
; CPOPJ ALWAYS
UPDCTR: PUSHJ P,SAVE2## ;SAVE P1-P2
DMOVE P1,T1 ;SAVE LENGTH AND BYTE POINTER TO ACTION TABLE
UPDCT1: ILDB T2,P2 ;GET UPDATE ACTION CODE
MOVE T1,(T3) ;GET VALUE OF NEXT COUNTER
XCT UPDCOD(T2) ;UPDATE COUNTER APPROPRIATELY
XMOVEI T3,1(T3) ;UPDATE SOURCE COUNTERS ADDRESS
XMOVEI T4,1(T4) ;AND DESTINATION COUNTERS ADDRESS
SOJG P1,UPDCT1 ;LOOP BACK FOR ALL COUNTERS
POPJ P, ;AND RETURN
;TABLE OF UPDATE ACTIONS
UPDCOD: ADDM T1,(T4) ;ADDITIVE COUNTER
IORM T1,(T4) ;ADDITIVE BITMAP
SUBTTL ETHERNET SUPPORT -- GENERATE TWO WORD GLOBAL BYTE POINTER
;ROUTINE TO GENERATE A TWO WORD GLOBAL BYTE POINTER FROM
;ANY VALID ONE OR TWO WORD BYTE POINTER
;LINKAGE:
; T1-T2/ BYTE POINTER
; PUSHJ P,GTWGBP
;RETURNS:
; CPOPJ ALWAYS WITH:
; T1-T2/ TWO WORD GLOBAL BYTE POINTER
GTWGBP::LDB T3,[POINT 6,T1,5] ;GET "P" FIELD OF BYTE POINTER
CAILE T3,44 ;IS THIS A ONE WORD GLOBAL BYTE POINTER?
JRST GTWGB2 ;YES, PROCESS SEPERATELY
TLNE T1,(1B12) ;IS IT A ONE WORD LOCAL BYTE POINTER?
JRST GTWGB1 ;NO, CONTINUE
LDB T2,[POINT 23,T1,35] ;YES, CONVERT INTO TWO WORD LOCAL
TLO T2,(1B0) ;...
TLO T1,(1B12) ;...
TDZ T1,[37,,777777] ;...
GTWGB1: TLNN T2,(1B0) ;IS IT ALREADY A TWO WORD GLOBAL BYTE POINTER?
POPJ P, ;YES, RETURN
HLRZ T3,T2 ;GET INDIRECT AND INDEX FIELDS
HRRZS T2 ;ISOLATE ADDRESS WITH ZERO SECTION NUMBER
DPB T3,[POINT 5,T2,5] ;STORE BACK INDIRECT AND INDEX FIELDS
POPJ P, ;AND RETURN
GTWGB2: MOVE T2,T1 ;SET UP ADDRESS PORTION OF BYTE POINTER
TLZ T2,(77B5) ;...
ROT T3,-1 ;COMPUTE TABLE OFFSET AND LH/RH FLAG
TLZN T3,(1B0) ;SELECT EITHER LEFT OR RIGHT HALF WORD
SKIPA T1,OWBTWB-22(T3) ;FETCH FIRST WORD OF BYTE POINTER
MOVS T1,OWBTWB-22(T3) ;...
HLLZS T1 ;KEEP JUST "P" AND "S" FIELDS
POPJ P, ;AND RETURN
;TABLE FOR CONVERTING FROM ONE WORD GLOBAL "P&S" VALUE TO NORMAL
;BYTE POINTER "P" AND "S" FIELDS
OWBTWB: 000000,,440600 ;44,,45
360600,,300600 ;46,,47
220600,,140600 ;50,,51
060600,,000600 ;52,,53
441000,,341000 ;54,,55
241000,,141000 ;56,,57
041000,,440700 ;60,,61
350700,,260700 ;62,,63
170700,,100700 ;64,,65
010700,,441100 ;66,,67
331100,,221100 ;70,,71
111100,,001100 ;72,,73
442200,,222200 ;74,,75
002200,,444400 ;76,,77
SUBTTL BYTE POINTERS
;BYTE POINTERS FOR PORTAL ID IN T1
PIPECN: POINTR (T1,PI.ECI) ;ETHERNET CHANNEL ID
PIPEPB: POINTR (T1,PI.EPB) ;ETHERNET PORTAL BLOCK ADDRESS
;BYTE POINTERS FOR ETHERNET PORTAL BLOCK
EPPPST: POINTR (EPBSTS(Q2),EPSPST) ;PREVIOUS PROTOCOL STATUS
EPPSTS: POINTR (EPBSTS(Q2),EPSSTS) ;CURRENT PROTOCOL STATUS
EPPPAD: POINTR (EPBSTS(Q2),EPSPAD) ;PROTOCOL PADDING BIT
;BYTE POINTERS FOR ETHERNET KONTROLLER BLOCK
EKPCPU: POINTR (EKBKTY(Q3),EKYCPU) ;CPU NUMBER OF KONTROLLER
EKPKTY: POINTR (EKBKTY(Q3),EKYKTY) ;KONTROLLER TYPE CODE
EKPKNO: POINTR (EKBKTY(Q3),EKYKNO) ;KONTROLLER NUMBER
;BYTE POINTERS TO COUNTERS UPDATE ACTION TABLES
UKCUAP: POINT 1,UKCUAT ;POINTER TO KONTROLLER ACTION TABLE
;UPDATE ACTION TABLES
UKCUAT: EXP 1B<KC.XFM>!1B<KC.RFM> ;TRANSMIT AND RECEIVE FAILURE MASKS
SUBTTL ETHERNET INFORMATION GETTAB TABLE
;GETTAB TABLE .GTETH(202) - ETHERNET INFORMATION
$LOW ;PUT INTO LOW SEGMENT
ETHGTB:: ;ETHERNET INFORMATION GETTAB TABLE
%EINEC: BLOCK 1 ;NUMBER OF ETHERNET CHANNELS ON SYSTEM
%EICHN: BLOCK 1 ;ADDRESS OF FIRST ETHERNET CHANNEL BLOCK
%EINEK: BLOCK 1 ;NUMBER OF ETHERNET KONTROLLERS ON SYSTEM
%EIKON: BLOCK 1 ;ADDRESS OF FIRST ETHERNET KONTROLLER BLOCK
%EISYS: ECBSYS,,EKBSYS ;OFFSETS TO SYSTEM WIDE LINK WORDS
%EISTS: ECBSTS,,EKBSTS ;OFFSETS TO STATUS WORDS
%EIBYR: BLOCK 1 ;TOTAL BYTES RECEIVED
%EIBYX: BLOCK 1 ;TOTAL BYTES TRANSMITTED
%EIDGR: BLOCK 1 ;TOTAL DATAGRAMS RECEIVED
%EIDGX: BLOCK 1 ;TOTAL DATAGRAMS TRANSMITTED
ETHMXL==:<.-ETHGTB-1>B26 ;MAXIMUM ENTRY IN TABLE FOR GETTAB UUO
$HIGH ;BACK TO HIGH SEGMENT
SUBTTL THE END
ETHLIT:!XLIST ;LITERALS
LIT
LIST
ETHEND:!END