Int 2F/AX=C000h

Novell ODI Link Support Layer (LSL.COM) - INSTALLATION CHECK

AX = C000h

Return:
AL = FFh if installed
DX:BX -> FAR entry point (see #02986,#02987,#02988)
ES:SI -> signature string "LINKSUP$"
Range:
AH=C0h to AH=FFh, selected by scanning for first free multiplex number

Note: On return, ES = DX for LSL v1.10 and v2.05; LSL makes use of this in its search for a previous installation

See Also: AX=5100h - AX=C000h"NESL"



(Table 02986)
Call LSL function "Request MLID Registration" with:.
BX = 0001h.
ES:SI -> registration??? record (see #02990).
DS:DI -> buffer for LSL information block (see #02991)

Return:
AX = completion code (0000h,8001h) (see #02989)
DS:DI buffer filled if successful
BX,CX corrupted

Note: See "Novell LAN Driver Developer's Guide, Volume III" for more details



(Table 02987)
Call LSL function "get support entry points" with:.
BX = 0002h.
ES:SI -> buffer for entry point record (see #02992)

Return:
ES:SI buffer filled


(Table 02988)
Call LSL function "Request MLID API entry point" with:
BX = 0003h

Return:
ES:SI -> MLID (Multiple Link Interface Driver) API entry point
(call with BX=function 00h-10h, not range-checked)

Note: LSL v1.10 and v2.05 execute BX=0003h for BX=0000h and any BX >= 0003h



(Table 02989)
Values for LSL completion code:
0000h  successful
8001h  out of resources
8002h  bad parameter
8003h  no more items
8004h  item not present
8005h  failed
8006h  receive overflow
8007h  canceled
8008h  bad command
8009h  duplicate entry
800Ah  no such handler
800Bh  no such driver

Format of LSL registration record:

Offset  Size    Description     (Table 02990)
00h    DWORD   -> ??? FAR function (to be called with ES:SI -> ??? and
returning AX = completion code)
04h    DWORD   -> ???
08h    DWORD   -> ??? data (at least 3Eh bytes)

Format of LSL information block:

Offset  Size    Description     (Table 02991)
00h    DWORD   -> ??? entry point (called with BX=function 00h-11h)
04h    WORD    ???
06h    WORD    ???

Note: Due to a fencepost error, LSL v2.05 (distributed with Novell DOS 7) will crash if the above entry point is called with BX=0012h


Format of entry point record:

Offset  Size    Description     (Table 02992)
00h    DWORD   pointer to protocol support entry point in LSL (see #02993)
04h    DWORD   pointer to general support entry point in LSL (see #02994)


(Table 02993)
Call protocol support entry point with:.
BX = function number
0000h ???
0001h ???
0002h ???
0003h "ScheduleAESEvent"
ES:SI -> AES ECB to be scheduled (see #02997)
Return:
ES,SI preserved
0004h "CancelAESEvent"
ES:SI -> ECB to be cancelled (see #02997)
Return:
ES,SI preserved
0005h "GetIntervalMarker"
Return:
DX:AX = current interval marker in milliseconds
all other registers preserved
0006h "RegisterStack"
AX = logical board number
ES:SI -> bound stack info structure (see #03007)
Return:
BX = assigned Stack ID if AX=0000h
0007h "DeRegisterStack"
AX = protocol stack's assigned Stack ID
0008h "RegisterDefaultStack"
AX = logical board number
ES:SI -> stack info structure (see #03008)
0009h "DeRegisterDefaultStack"
AX = logical board number
000Ah "RegisterPrescanStack"
AX = logical board number
ES:SI -> stack info structure (see #03008)
000Bh "DeRegisterPrescanStack"
AX = logical board number
000Ch "SendPacket"
ES:SI -> send ECB
Return:
Interrupts disabled
000Dh ???
000Eh ???
000Fh ???
0010h "GetStackIDFromName"
ES:SI -> counted NUL-terminated protocol name (max 15 chars)
Return:
BX = Stack ID if AX=0000h
0011h "GetPIDFromStackIDBoard"
AX = Stack ID for protocol
CX = logical board number
ES:SI -> 6-byte buffer for protocol ID
0012h "GetMLIDControlEntry"
AX = logical board number
Return:
ES:SI -> MLID control handler (see #02995) if AX=0000h
0013h "GetProtocolControlEntry"
AX = Stack ID or
FFFEh Prescan stack
CX = logical board number
FFFFh default protocol
CX = logical board number
Return:
ES:SI -> protocol stack control entry point if AX=0000h
(see #02996)
0014h "GetLSLStatistics"
Return:
AX = 0000h (successful)
ZF set
ES:SI -> LSL statistics table (see #02999)
0015h "BindStack"
AX = protocol stack's assigned Stack ID
CX = logical board number
0016h "UnbindStack"
AX = protocol stack's assigned Stack ID
CX = logical board number
0017h "AddProtocolID"
AX = frame type ID code
ES:SI -> 6-byte protocol ID
CX:DI -> counted NUL-terminated short protocol name (max 15 ch)
0018h "RelinquishControl"
Return:
After LSL performs any necessary background processing
0019h "GetLSLConfiguration"
Return:
AX = 0000h (successful)
ZF set
ES:SI -> LSL configuration table (see #02998)
001Ah "GetTickMarker"
Return:
AX = number of 55ms ticks since LSL loaded
BX destroyed

Return:
AX = completion code (see #02989)
ZF set if successful
SS:SP, DS, BP preserved; most other registers may be destroyed


(Table 02994)
Call general support entry point with:
BX = function number
0000h "Allocate Memory" (obsolete)
always returns AX=8008h (BAD_COMMAND)
0001h "Free Memory" (obsolete)
always returns AX=8008h (BAD_COMMAND)
0002h "Realloc Memory" (obsolete)
always returns AX=8008h (BAD_COMMAND)
0003h "Memory Statistics" (obsolete)
always returns AX=8008h (BAD_COMMAND)
0004h "Add Memory To Pool" (obsolete)
always returns AX=8008h (BAD_COMMAND)
0005h "AddGeneralService"
ES:SI -> General Service Control Block (see #03009)
0006h "RemoveGeneralService"
ES:SI -> General Service Control Block (see #03009)
0007h "GetNETcfgPath"
Return:
AX = 0000h (successful)
DS:DX -> ASCIZ pathname for NET.CFG
0008h U ???  (in LSL 1.10)
Return:
AX = 0000h
ES:SI -> ??? (a 22-byte data area)
000Ah "GetCriticalSectionStatus"
Return:
BX = total outstanding calls to "StartCriticalSection"
000Bh "ServiceEvents"
interrupts disabled
Return:
Interrupts disabled
0010h "GetStackECB"
DS:DI -> Lookahead structure (see #03010)
interrupts disabled
Return:
ES:SI -> ECB if successful (AX=0000h,ZF set)
interrupts disabled
8000h-FFFFh reserved for user general service providers

Return:
AX = completion code (see #02989)
ZF set if successful
SS:SP, DS, BP preserved


(Table 02995)
Call MLID control handler with:
AX = logical board number
BX = function number
0000h "GetMLIDConfiguration"
Return:
ES:SI -> MLID's configuration table if successful
(see #03002 for format)
0001h "GetMLIDStatistics"
Return:
ES:SI -> MLID's statistics table if successful
(see #03002 for format)
0002h "AddMulticastAddress"
ES:SI -> 6-byte multicast address to add
0003h "DeleteMulticastAddress"
ES:SI -> 6-byte multicast address to delete
0005h "MLIDShutdown"
CX = type
0000h permanent (also deregisters from LSL)
other temporary (shutdown hardware only)
0006h "MLIDReset" reinitialize board / restart from temp shutdown
0007h "Create Connection" (obsolete?)
???
0008h "Delete Connection" (obsolete?)
???
0009h "SetLookAheadSize"
CX = requested lookahead size (00h-80h)
000Ah "PromiscuousChange"
CX = what to receive promiscuously
bit 0:
MAC frames
bit 1:
Non-MAC frames
000Bh "RegisterReceiveMonitor"
CX = subfunction
0000h disable receive monitoring
else  enable receive monitoring
ES:SI -> monitor receive routine
ES:DI -> monitor transmit routine
000Ch "Driver Poll" (obsolete?)
???

Return:
AX = completion code (see #02989)
ZF set if successful

Note: Not all boards/MLIDs support function 0010h; see bit 13 in the MLID mode flags field of the MLID's configuration table



(Table 02996)
Call protocol stack control entry point with:.
BX = function number
0000h "GetProtocolStackConfiguration"
Return:
ES:SI -> protocol stack's configuration table
(see #03001)
0001h "GetProtocolStackStatistics"
Return:
ES:SI -> protocol stack's statistics table (see #03000)
0002h "BindToMLID"
CX = board number to bind to
ES:SI -> implementation-dependant parameter string
0003h "UnBindFromMLID"
CX = board number from which protocol should unbind
ES:SI -> optional implementation-dependant parameter string
0004h "MLIDDeRegistered"
CX = board number that has de-registered from LSL

Return:
AX = status
0000h successful
else implementation-dependant error codes
ZF set if successful
SS:SP, DS, BP preserved

Format of AES ECB:

Offset  Size    Description     (Table 02997)
00h    DWORD   "AESLink" pointer used by LSL for list management
04h    DWORD   number of milliseconds to wait
08h    DWORD   "AESStatus" (is set to 00000000h when AES ESR is invoked)
0Ch    DWORD   -> function to be invoked when time expires
ES:SI will point to this structure on entry,
DS, BP, and SS:SP must be preserved.

See Also: #03011

Format of LSL Configuration Table: Offset Size Description (Table 02998) 00h BYTE major version of configuration table 01h BYTE minor version of configuration table (decimal, 0-99) 02h 8 BYTEs reserved 0Ah BYTE LSL major version (decimal) 0Bh BYTE LSL minor version (decimal, 0-99) ---LSL 1.0x --- 0Ch 14 BYTEs reserved ---LSL 1.10+ --- 0Ch WORD maximum number of boards which LSL can handle 0Eh WORD maximum number of protocol IDs which LSL can handle 10h 12 BYTEs reserved

Format of LSL Statistics Table: Offset Size Description (Table 02999) 00h BYTE major version of statistics table format 01h BYTE minor version of statistics table format (decimal, 0-99) 02h WORD "GenericCounters" number of counters in static portion of table 04h DWORD "ValidCountersMask" bit mask indicating which generic counters are actually used. Bit 31 = TotalTxPackets, bit 30 is the next field, etc. 08h DWORD "TotalTxPackets" total SendPacket requests made 0Ch DWORD reserved 10h DWORD reserved 14h DWORD "AESEventsCount" number of completed AES events 18h DWORD "PostponedEvents" number of events postponed due to critical sections inside the MLIDs 1Ch DWORD "CancelAESFailures" number of times CancelAESEvent failed 20h DWORD reserved 24h DWORD reserved 28h DWORD "TotalRxPackets" total number of GetStackECB requests 2Ch DWORD "UnclaimedPackets" total number of packets not consumed by a protocol stack 30h WORD "NumberCustom" number of custom variables that follow 32h N DWORDs custom counters N DWORDs -> CustomCounterStrN (one per custom counter). Var length-prepended and NULL terminated string for Counter 0. .... Var length-prepended and NULL terminated string for Counter N-1

See Also: #03000 - #03006

Format of Protocol Stack Statistics Table: Offset Size Description (Table 03000) 00h BYTE statistics table major version 01h BYTE statistics table minor version (decimal, 0-99) 02h WORD number of generic counters following 04h DWORD "ValidCountersMask" (bitmask, bit 31 is TotalTxPackets) 08h DWORD TotalTxPackets 0Ch DWORD TotalRxPackets 10h DWORD IgnoredRxPackets 14h WORD number of custom counters 16h N DWORDs custom counters N DWORDs -> CustomCounterStrN (one per custom counter). Var length-prepended and NULL terminated string for Counter 0. .... Var length-prepended and NULL terminated string for Counter N-1

See Also: #02999 - #03006

Format of Protocol Stack Configuration Table: Offset Size Description (Table 03001) 00h BYTE configuration table major version 01h BYTE configuration table minor version (decimal, 0-99) 02h DWORD -> counted NUL-terminated long descriptive name for protocol 06h DWORD -> counted NUL-terminated short name for protocol (15 chars) 0Ah BYTE protocol stack major version 0Bh BYTE protocol stack minor version (decimal, 0-99) 0Ch 16 BYTEs reserved for future use

Format of MLID Configuration Table: Offset Size Description (Table 03002) 00h 26 BYTEs signature 'HardwareDriverMLID ' (8 spaces on end) 1Ah BYTE configuration table major version 1Bh BYTE configuration table minor version (decimal, 0-99) 1Ch 6 BYTEs node address 22h WORD MLID mode flags (see #03003) 24h WORD board number 26h WORD board instance (if more than one of same board installed) 28h WORD maximum packet size 2Ah WORD BestDataSize 2Ch WORD WorstDataSize 2Eh DWORD -> counted NUL-terminated long name for NIC 32h DWORD -> counted NUL-terminated short name for NIC (8 chars max) 36h DWORD -> counted NUL-terminated Frame and Media type 3Ah WORD reserved (0000h) 3Ch WORD frame type ID 3Eh WORD TransportTime (milliseconds) 40h DWORD -> SourceRouteHandler for TokenRing. (Used by ROUTE.COM) 44h WORD lookahead size 46h WORD line speed (Mbps if high bit clear, else Kbps) 48h WORD QueueDepth 4Ah 6 BYTEs reserved (0) 50h BYTE driver major version 51h BYTE driver minor version (decimal, 0-99) 52h WORD bus/multicast flags (see #03004) 54h WORD send retries 56h DWORD ConfigTableLink 5Ah WORD MLID sharing flags (see #03005) 5Ch WORD slot number 5Eh WORD I/O address 1 60h WORD I/O range 1 62h WORD I/O address 2 64h WORD I/O range 2 66h DWORD memory address 1 6Ah WORD memory size 1 6Ch DWORD memory address 2 70h WORD memory size 2 72h BYTE interrupt line 1 73h BYTE interrupt line 2 74h BYTE DMA line 1 75h BYTE DMA line 2

Bitfields for MLID mode flags: Bit(s) Description (Table 03003) 15 MLID supports Octet Reversal 14 node address is non-canonical 13 promiscuous mode is supported 12-8 reserved 7 LDataSize field in LookAhead structure supported 6 raw send supported 5 MLID needs to be polled by LSL 4 reserved (0) 3 multicasting is supported 2 not currently used by DOS ODI, set to 0. 1 network card uses DMA. 0 RealDriverBit, always set to 1.

Bitfields for bus/multicast flags: Bit(s) Description (Table 03004) 10-9 specialized multicast support. 00 = Group addressing is default for medium. 01 = Invalid. 10 = Filter group address in MLID.. 11 = Adapter filters group address. 2 supports Micro Channel cards 1 supports ISA cards 0 supports EISA cards

Bitfields for MLID sharing flags: Bit(s) Description (Table 03005) 8 NIC can share DMA2 7 NIC can share DMA1 6 NIC can share IRQ2 5 NIC can share IRQ1 4 NIC can share Memory2 3 NIC can share Memory1 2 NIC can share IO2 1 NIC can share IO1 0 MLID is currently shut down

Format of MLID Statistics Table: Offset Size Description (Table 03006) 00h BYTE driver statistics table major version 01h BYTE driver statistics table minor version (decimal, 0-99) 02h WORD number of generic counters (typically 13) 04h DWORD "ValidCountersMask" (bit mask, bit 31 is TotalTxCount) 08h DWORD TotalTxCount 0Ch DWORD TotalRxCount 10h DWORD NoECBAvailableCount 14h DWORD TxTooBigCount 18h DWORD TxTooSmallCount 1Ch DWORD RxOverflowCount 20h DWORD RxTooBigCount 24h DWORD RxTooSmallCount 28h DWORD TxMiscCount 2Ch DWORD RxMiscCount 30h DWORD TxRetryCount 34h DWORD RxChecksumErrorCount 38h DWORD RxMismatchCount 3Ch WORD number of custom counters 3Eh N DWORDs custom counters N DWORDs -> CustomCounterStrN (one per custom counter). Var length-prepended and NULL terminated string for Counter 0. .... Var length-prepended and NULL terminated string for Counter N-1

See Also: #02999 - #03000


Format of bound stack info structure:

Offset  Size    Description     (Table 03007)
00h    DWORD   -> protocol stack's short name (counted, NUL-terminated)
04h    DWORD   -> receive handler
08h    DWORD   -> control handler

Format of stack info structure:

Offset  Size    Description     (Table 03008)
00h    DWORD   -> receive handler
04h    DWORD   -> control handler

Format of General Service Control Block:

Offset  Size    Description     (Table 03009)
00h    DWORD   -> next GSCB (maintained internally by LSL)
04h    DWORD   -> entry point for general service handler
08h    WORD    command code for this general service (8000h-FFFFh)

Note: The control block must not be altered or deallocated until the general service is removed

Format of Lookahead structure: Offset Size Description (Table 03010) 00h DWORD -> Media header 04h DWORD -> lookahead buffer 08h WORD length of lookahead buffer 0Ah 6 BYTEs protocol ID 10h WORD logical board number 12h WORD lookahead size

Format of ODI ECB: Offset Size Description (Table 03011) 00h DWORD link to next ECB 04h DWORD link to previous ECB 08h WORD general status 0000h received successfully 8006h packet overflow 8007h reception aborted (data not valid) 0Ah DWORD -> event service routine or RETF (never 0000h:0000h)(see #03012) 0Eh WORD protocol stack identifier 10h 6 BYTEs protocol ID (sending only) 16h WORD MLID board number (sending only) 18h 6 BYTEs MAC destination address 1Eh 4 BYTEs driver workspace 22h 8 BYTEs protocol workspace 2Ah WORD total length of sent buffer 2Ch WORD fragment count 2Eh 2 WORDs segment,offset of first fragment buffer 32h WORD length of first fragment buffer. ...

See Also: #02997



(Table 03012)
Values event service routine is called with:.
ES:SI -> associated ODI ECB (see #03011).
Interrupts disabled

Return:
DS,BP,SS,SP preserved
interrupt disabled

Notes: The service routine may invoke any IPX/ODI function except CloseSocket. It is safe to send a packet and wait for completion if enough stack space is available

Category: Network - Int 2Fh - N

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