|
Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
SLMBK
Control Block Contents
SLMBK DSECT
Cross Reference (Contains links to field and bit definitions)
SLMBK Prolog
NAME : HCPSLMBK
DESCRIPTION: System LAN Management block
DSECT : SLMBK
FUNCTION :
The SLMBK holds the status of System LAN Management.
LOCATED BY -
HCPLANSL = Pointer to SLMBK
HCPLANSD = Area reserved for the SLMBK
CREATED BY :
Storage for the SLMBK is reserved in module HCPLAN
when it is compiled.
DELETED BY :
None
REFERENCES :
HCPLANBK COPY - LANBK represents a single Virtual LAN
HCPMLTBK COPY - MLTBK represents a multi-level table
SLMBK Control Block Content
SLMBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure SLMBK System LAN Management block
LAN Management Lock -
Notes : LKWRDSIZ == 3 doublewords.
0000 0 Dbl-Word 8 SLMLKWRD (3) Adapter Lockword
System LAN Management -
These fields are used to control and access the
independent Virtual LAN structures in the system.
The LAN Management Lock (SLMLKWRD) must be held
EXCLUSIVE to modify these fields.
The LAN Management LOCK (SLMLKWRD) must be held
SHARED to reference these fields.
Lock Hierarchy -
The following list is arranged to represent the sequence
in which these locks must be OBTAINED (when multiple
locks are required):
NICLKWRD - NIC (adapter) Lock
SLMLKWRD - System LAN Management Lock
LANLKWRD - LAN Lock
MSVLKWRD - MAC Services Lock
(1) QIOLOCK - QIOBK Lock
(1) SLMMACLK - MACADDR Table Lock
(1) SLMSWLCK - Switch Eligible Table Lock
(2) RDEVLOCK - RDEV Lock Address for VSWITCH OSA-E devs
VDEVLOCK - VDEV Lock Address for VSWITCH OSA-E devs
(2) LANCTLCK - LAN Controller Lock
ILMLKWRD - IP LAN Management lock
(1) SPBLOCK - VSWITCH Physical Ports Block
(1,2) Currently there are no conditions imposed on the
sequence in which these locks are obtained, as long
as the higher level and lower level locks are obtained
in the proper order.
These tiers show the order for obtaining virtual networking
locks. Jump in at an level, but from that point on, you
may obtain additional locks ONLY from a lower tier.
----------------------------------------------------------
Tier 1: NICLKWRD
----------------------------------------------------------
Tier 2: SLMLKWRD
----------------------------------------------------------
Tier 3: LANLKWRD
----------------------------------------------------------
Tier 4: MSVLKWRD
----------------------------------------------------------
Tier 5: QIOLOCK SLMMACLK SLMSWLCK SPBLOCK
----------------------------------------------------------
Tier 6: RDEVLOCK LANCTLCK
----------------------------------------------------------
Tier 7: VDEVLOCK ILMLKWRD
----------------------------------------------------------
0018 24 Address 4 SLMLANHD Pointer to the First LANBK
001C 28 Bitstring 4 * Reserved
0020 32 Signed 4 SLMPXCTR Count of PERSISTENT VM LAN
0024 36 Signed 4 SLMTXCTR Count of TRANSIENT VM LAN
0028 40 Signed 4 SLMPXMAX Limit for PERSISTENT VM LAN
002C 44 Signed 4 SLMTXMAX Limit for TRANSIENT VM LAN
0030 48 Bitstring 1 SLMCFLAG Control Flag:
1... .... SLMPXLIM X'80' SLMPXLIM - LIMIT PERSISTENT
(SLMPXMAX)
.1.. .... SLMTXLIM X'40' SLMTXLIM - LIMIT TRANSIENT
(SLMTXMAX)
..1. .... SLMMACRS X'20' SLMMACRS - MACIDRANGE
SYSTEM set
...1 .... SLMMACRU X'10' SLMMACRU - MACIDRANGE USER
set
0031 49 Bitstring 1 SLMACNT Accounting Flags:
1... .... SLMSYSAC X'80' SLMSYSAC - SYSTEM ACNT
default = ON
.1.. .... SLMUSRAC X'40' SLMUSRAC - USER ACNT
default = ON
0032 50 Bitstring 2 * Reserved
0034 52 Bitstring 3 SLMMACPF VMLAN MACADDR Prefix
Flag used to enable display of controller messages.
Set to X'37' = X'FF'-(SLMMSGON+SLMMSGHX+SLMMSGIN)
This is used as the "expected" value by tools such as ZAPCP.
0037 55 Bitstring 1 SLMMSGFL VSWITCH controller message disply
1... .... SLMMSGON X'80' SLMMSGON - Display
controller message info
.1.. .... SLMMSGHX X'40' SLMMSGHX - Display details
as hex data
.... 1... SLMMSGIN X'08' SLMMSGIN - Message is FROM
controller
MAC Address Table (serialized by SLMMACLK).
Notes : LKWRDSIZ == 3 doublewords.
0038 56 Dbl-Word 8 SLMMACLK (3) MACADDR Table Lockword Also
protects the SLMMSVBK chain.
BLOCKMAP DEFINE SLMMACTB (4)D
0050 80 Dbl-Word 8 SLMMACTB (4) Reserve a MLTBK here
Periodic Maintenance for VM LAN.
0070 112 Signed 4 SLMPMCTR Periodic Maintenance counter
0074 116 Signed 4 SLMPMFRQ Frequency of Maintenance (Number
of SRMTIMIN intervals to count
between calls)
0078 120 Bitstring 1 SLMFRMLK Spin Lock for SLMFRMQH
0079 121 Bitstring 1 SLMPM_ACTIVE Set (TS) during maintenance
007A 122 Bitstring 1 SLMDCINT Deferred Controller Assignment
Interval Time (# of 30 second
intervals to wait)
00000002 SLMDCA 2 Default Deferred Controller
INTV (30 to 60 seconds wait time)
007B 123 Bitstring 1 * Reserved for Future IBM Use
007C 124 Signed 4 SLMFRMMX Maximum recycled frame count
0080 128 Signed 4 SLMFRMCT Recycled Frame counter
0084 132 Address 4 SLMFRMQP Pointer to NDMBK recycle stack
Notes : SLMSWIPT/SLMSWICT access controlled by SLMSWLCK
0088 136 Address 4 SLMSWIPT Switch Eligible Table Pointer
008C 140 Signed 4 SLMSWICT Switch Eligible Table Counter
0090 144 Dbl-Word 8 * (0) Align lockword on doubleword
0090 144 Bitstring 24 SLMSWLCK Switch Eligible Table Lock
00A8 168 Address 4 SLMDIPHD First Delete in Progress Pointer
00AC 172 Signed 4 SLMDIPCT Delete in Progress Counter
00B0 176 Character 8 SLMPM_LANOWNER LANOWNER of most recent LANBK
00B8 184 Character 8 SLMPM_LANNAME LANNAME of most recent LANBK
00C0 192 Signed 8 SLMPM_OLDTOD Prior TOD clock
00C8 200 Signed 8 SLMPM_NEWTOD Current TOD clock
Timeout / Failover values for Guest Lan / VSWITCH
00D0 208 Dbl-Word 8 * (0) Align on doubleword
00D0 208 Signed 4 SLMOSATO VSWITCH OSA timeout (seconds)
00D4 212 Signed 4 SLMUSRTO User interface timeout (seconds)
00D8 216 Dbl-Word 8 SLMCONTR Controller hang time out value
00E0 224 Dbl-Word 8 SLMSETIP SETIP Throttle time out value
00E8 232 Bitstring 12 SLMMACRG (0) VMLAN MACIDRANGE values
00E8 232 Bitstring 3 SLMMACSB SYSTEM begin
00EB 235 Bitstring 3 SLMMACSE SYSTEM end
00EE 238 Bitstring 3 SLMMACUB USER begin
00F1 241 Bitstring 3 SLMMACUE USER end
00F4 244 Signed 4 SLM26CVR (0) Diag x26C Buffer Version
00F4 244 Signed 2 SLM26CSV - Service level version
00F6 246 Signed 2 SLM26CRV - Release level version
00F8 248 Address 4 SLMSWPHD Ptr to first SWPBK
00FC 252 Signed 2 SLMSWCTR SWPBK counter
00FE 254 Bitstring 1 SLMFLAG Reserved for IBM Internal Use
1... .... SLMALLOW X'80' SLMALLOW - Allow flag
00FF 255 Bitstring 1 * Reserved
0100 256 Dbl-Word 8 SLMRRTIM Trunk retry time out value
0108 264 Signed 4 SLMWTMGRS Managers waiting for VSWITCH
creation
010C 268 Signed 4 SLMVDEVN High water mark for VSWITCH
pseudo-virtual device number
0110 272 Address 4 SLMMSVBK HCPMSVBK VSWITCH chain anchor,
holding virtual MAC assignment
info. This chain, and the fields
in its MSVBKs is protected by the
SLMMACLK.
0114 276 Signed 4 * Reserved for future IBM use
End of the SLMBK.
0118 280 Dbl-Word 8 SLM$END (0) End of the SLMBK structure
00000118 SLMBKLN *-SLMBK Length of SLMBK in bytes
00000023 SLMBKSZ (*-SLMBK+7)/8 Size of SLMBK in
doublewords
PREFIX_LEN = 3
Start of Assembler Control Block
SLMBK Storage Layout
*** SLMBK - System LAN Management block
*
* +-------------------------------------------------------+
* 0 | |
* = SLMLKWRD =
* | |
* +---------------------------+---------------------------+
* 18 | SLMLANHD |///////////////////////////|
* +---------------------------+---------------------------+
* 20 | SLMPXCTR | SLMTXCTR |
* +---------------------------+---------------------------+
* 28 | SLMPXMAX | SLMTXMAX |
* +------+------+-------------+--------------------+------+
* 30 |:CFLAG|:ACNT |/////////////| SLMMACPF |:MSGFL|
* +------+------+-------------+--------------------+------+
* 38 | |
* = SLMMACLK =
* | |
* +-------------------------------------------------------+
* 50 | |
* = SLMMACTB =
* | |
* +---------------------------+---------------------------+
* 70 | SLMPMCTR | SLMPMFRQ |
* +------+------+------+------+---------------------------+
* 78 |:FRMLK|(079) |:DCINT|//////| SLMFRMMX |
* +------+------+------+------+---------------------------+
* 80 | SLMFRMCT | SLMFRMQP |
* +---------------------------+---------------------------+
* 88 | SLMSWIPT | SLMSWICT |
* +---------------------------+---------------------------+
* 90 | |
* = SLMSWLCK =
* | |
* +---------------------------+---------------------------+
* A8 | SLMDIPHD | SLMDIPCT |
* +---------------------------+---------------------------+
* B0 | SLMPM_LANOWNER |
* +-------------------------------------------------------+
* B8 | SLMPM_LANNAME |
* +-------------------------------------------------------+
* C0 | SLMPM_OLDTOD |
* +-------------------------------------------------------+
* C8 | SLMPM_NEWTOD |
* +---------------------------+---------------------------+
* D0 | SLMOSATO | SLMUSRTO |
* +---------------------------+---------------------------+
* D8 | SLMCONTR |
* +-------------------------------------------------------+
* E0 | SLMSETIP |
* +--------------------+--------------------+-------------+
* E8 | SLMMACSB | SLMMACSE | SLMMACUB- |
* +------+-------------+------+-------------+-------------+
* F0 |-(0EE)| SLMMACUE | SLM26CSV | SLM26CRV |
* +------+--------------------+-------------+------+------+
* F8 | SLMSWPHD | SLMSWCTR |:FLAG |//////|
* +---------------------------+-------------+------+------+
* 100 | SLMRRTIM |
* +---------------------------+---------------------------+
* 108 | SLMWTMGRS | SLMVDEVN |
* +---------------------------+---------------------------+
* 110 | SLMMSVBK |///////////////////////////|
* +---------------------------+---------------------------+
*
*** SLMBK - System LAN Management block
SLMBK Cross Reference
Symbol Dspl Value -------------- ---- ----- SLM$END 0118 SLMACNT 0031 SLMALLOW 00FE 80 SLMBKLN 0118 00000118 SLMBKSZ 0118 00000023 SLMCFLAG 0030 SLMCONTR 00D8 SLMDCA 007A 00000002 SLMDCINT 007A SLMDIPCT 00AC SLMDIPHD 00A8 SLMFLAG 00FE SLMFRMCT 0080 SLMFRMLK 0078 SLMFRMMX 007C SLMFRMQP 0084 SLMLANHD 0018 SLMLKWRD 0000 SLMMACLK 0038 SLMMACPF 0034 SLMMACRG 00E8 SLMMACRS 0030 20 SLMMACRU 0030 10 SLMMACSB 00E8 SLMMACSE 00EB SLMMACTB 0050 SLMMACUB 00EE SLMMACUE 00F1 SLMMSGFL 0037 SLMMSGHX 0037 40 SLMMSGIN 0037 08 SLMMSGON 0037 80 SLMMSVBK 0110 SLMOSATO 00D0 SLMPM_ACTIVE 0079 SLMPM_LANNAME 00B8 SLMPM_LANOWNER 00B0 SLMPM_NEWTOD 00C8 SLMPM_OLDTOD 00C0 SLMPMCTR 0070 SLMPMFRQ 0074 SLMPXCTR 0020 SLMPXLIM 0030 80 SLMPXMAX 0028 SLMRRTIM 0100 SLMSETIP 00E0 SLMSWCTR 00FC SLMSWICT 008C SLMSWIPT 0088 SLMSWLCK 0090 SLMSWPHD 00F8 SLMSYSAC 0031 80 SLMTXCTR 0024 SLMTXLIM 0030 40 SLMTXMAX 002C SLMUSRAC 0031 40 SLMUSRTO 00D4 SLMVDEVN 010C SLMWTMGRS 0108 SLM26CRV 00F6 SLM26CSV 00F4 SLM26CVR 00F4
Copyright IBM Corporation, 1990, 2009