SWIBK Back to Index page
 
Prolog 
Control Block Contents 
   SWIBK DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  SWIBK Prolog Top of page
  
 NAME       : HCPSWIBK
 DESCRIPTION: DSECTS and EQUATES for z/VM Virtual Switch
              functions.
 DSECT      : SWIBK
 FUNCTION   : z/VM Virtual Switch Eligible Controller
 LOCATED BY : Single threaded link list anchored from
              SLMSWIPT in the SLMBK pointed by HCPLANSD.
 CREATED BY : HCPSWIAC when a z/VM TCP/IP stack connects to
              the *VSWITCH CP System Service.
 DELETED BY : A SWIBK may be cleared for future reuse by
              HCPSWRSV, but is never deleted once allocated.
 REFERENCES : None.
 SERIALIZED : Switch Eligible Controller Table Lock,
              (SLMSWLCK).
              As noted below, some fields are serialized
              by execution on the SYSTEM VMDBK.
 COMPATIBILITY AND MIGRATION CONCERNS : None.
 RELOCATION CONSIDERATIONS : None
 NOTES      : None.
 
 
  SWIBK Control Block Content Top of page
  




 SWIBK DSECT
Top of page


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      SWIBK          DSECTS and EQUATES for z/VM Virtual Switch
0000    0 Address      4 SWIEFPTR       Next SWIBK
0004    4 Signed       4 *              Reserved for Future IBM Use
0008    8 Character    8 SWIEUSER       Switch participant user ID
0010   16 Signed       4 SWIEVMDBK      VMDBK address for controller
0014   20 Signed       2 SWIEPATH       IUCV Path ID
0016   22 Address      1 SWIEAVAIL      Ready flag
0017   23 Bitstring    1 SWIEFLAG       Controller flags EQU X'80' -
                                        Reserved for Future IBM Use
          .1.. ....      SWIECONTRLR    X'40' SWIECONTRLR - Received
                                        ControllerStatus update
          ..1. ....      SWIEMANAGER    X'20' SWIEMANAGER - Received
                                        ManagementID message
          ...1 ....      SWIEHEARTBEAT  X'10' SWIEHEARTBEAT - Sent
                                        Heartbeat message
          .... 1...      SWIEFORCE      X'08' SWIEFORCE - Force a
                                        Controller Stall X'04' - Reserved
          .... ..1.      SWIEFAILOVER   X'02' SWIEFAILOVER - Perform
                                        timeout chk for failover
          .... ...1      SWIESTALLED    X'01' SWIESTALLED - Controller is
                                        unresponsive
0018   24 Signed       4 SWIECOUNT      Count of active switches
001C   28 Signed       4 SWIEVDEVS      Start of VDEV range
0020   32 Signed       4 SWIEVDEVE      End of VDEV range
0024   36 Signed       4 SWIECAPAB      Controller Capabilities
          .... ....      SWIEStTransportIP
                                        X'80000000' SWIEStTransportIP
                                        (V4R4.0
          .... ....      SWIEStTransportL2
                                        X'40000000' SWIEStTransportL2
                                        (V5R1.0
          .... ....      SWIEStReleaseLevelInfo
                                        X'20000000'
                                        SWIEStReleaseLevelInfo (V
          .... ....      SWIEStSend_Grat_Arp
                                        X'10000000' SWIEStSend_Grat_Arp
                                        (V4R4
          .... ....      SWIEStGVRP     X'08000000' SWIEStGVRP (V5R2.0+
                                        level
          .... ....      SWIEStManagement
                                        X'04000000' SWIEStManagement
                                        (V5R3.0+
          .... ....      SWIEStLinkAggregation
                                        X'04000000' SWIEStLinkAggregation
                                        (V5
          .... ....      SWIEStSetAccessControl
                                        X'02000000'
                                        SWIEStSetAccessControl (V EQU
                                        X'01000000' Reserved EQU
                                        X'00800000' Reserved
          WIECAPAB       SWIEBridge     X'00400000' SWIEBridge (V6R2.0+
                                        level
          WIECAPAB       SWIEStVEPA     X'00200000' SWIEStVEPA (V6R3.0+
                                        level
          WIECAPAB       SWIEExpVlanData
                                        X'00100000' SWIEExpVlanData
                                        (VM65104+
          WIECAPAB       SWIESharedLinkAgg
                                        X'00080000' SWIESharedLinkAgg
                                        (VMnnnn
          WIECAPAB       SWIEPriorityQueuing
                                        X'00040000' SWIEPriorityQueuing
                                        (VM66
      Controller Activity Timestamps
      Serialized : The following fields are serialized by
                     execution on the SYSTEM VMDBK.
0028   40 Dbl-Word     8 SWIESTIME      Send-to-controller timestamp
0030   48 Dbl-Word     8 SWIERTIME      Receive-from-controller timestamp
0038   56 Dbl-Word     8 SWIECTIME      Last checked timestamp
0040   64 Dbl-Word     8 SWIEXTIME      Special send-to-controller
                                        timestamp *-- End SYSTEM
                                        Serialization
0048   72 Bitstring   20 SWIELEVEL      TCP/IP Stack Level String
005C   92 Signed       4 SWIEVDEVC      Current VDEV range start
          0000000C       SWIESIZE       (*-SWIBK+7)/8 size in double
                                        words
          00000060       SWIEBSIZ       SWIESIZE*8 size in bytes
          00000008       SWIEINIT       8 Default number of entries
 
 
  SWIBK Storage Layout Top of page
  
          
*** SWIBK - DSECTS and EQUATES for z/VM Virtual Switch
*
*     +---------------------------+---------------------------+
*   0 |         SWIEFPTR          |///////////////////////////|
*     +---------------------------+---------------------------+
*   8 |                       SWIEUSER                        |
*     +---------------------------+-------------+------+------+
*  10 |        SWIEVMDBK          |  SWIEPATH   |(016) |:EFLAG|
*     +---------------------------+-------------+------+------+
*  18 |        SWIECOUNT          |        SWIEVDEVS          |
*     +---------------------------+---------------------------+
*  20 |        SWIEVDEVE          |        SWIECAPAB          |
*     +---------------------------+---------------------------+
*  28 |                      SWIESTIME                        |
*     +-------------------------------------------------------+
*  30 |                      SWIERTIME                        |
*     +-------------------------------------------------------+
*  38 |                      SWIECTIME                        |
*     +-------------------------------------------------------+
*  40 |                      SWIEXTIME                        |
*     +-------------------------------------------------------+
*  48 |                                                       |
*     =                      SWIELEVEL                        =
*     |                           +---------------------------+
*  58 |                           |        SWIEVDEVC          |
*     +---------------------------+---------------------------+
*  60
*
*** SWIBK - DSECTS and EQUATES for z/VM Virtual Switch
 
 
  SWIBK Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
SWIEAVAIL      0016
SWIEBridge     0024 WIECAPAB
SWIEBSIZ       005C 00000060
SWIECAPAB      0024
SWIECONTRLR    0017 40
SWIECOUNT      0018
SWIECTIME      0038
SWIEExpVlanData
               0024 WIECAPAB
SWIEFAILOVER   0017 02
SWIEFLAG       0017
SWIEFORCE      0017 08
SWIEFPTR       0000
SWIEHEARTBEAT  0017 10
SWIEINIT       005C 00000008
SWIELEVEL      0048
SWIEMANAGER    0017 20
SWIEPriorityQueuing
               0024 WIECAPAB
SWIEPATH       0014
SWIERTIME      0030
SWIESharedLinkAgg
               0024 WIECAPAB
SWIEStGVRP     0024 00
SWIEStLinkAggregation
               0024 00
SWIEStManagement
               0024 00
SWIEStReleaseLevelInfo
               0024 00
SWIEStSend_Grat_Arp
               0024 00
SWIEStSetAccessControl
               0024 00
SWIEStTransportIP
               0024 00
SWIEStTransportL2
               0024 00
SWIEStVEPA     0024 WIECAPAB
SWIESIZE       005C 0000000C
SWIESTALLED    0017 01
SWIESTIME      0028
SWIEUSER       0008
SWIEVDEVC      005C
SWIEVDEVE      0020
SWIEVDEVS      001C
SWIEVMDBK      0010
SWIEXTIME      0040
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:56:41 EDT.
Copyright IBM Corporation, 1990, 2022