Programming Interface Information: The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM.

#### MRIODQDA

Prolog
Control Block Contents
Cross Reference

#### MRIODQDA Prolog

     DSECT NAME - IODQDA
     FUNCTION - Map a Monitor record.
     LOCATED BY -
            Through the Monitor Control Area
     REFERENCED CONTROL BLOCKS -
            MRRECHDR    Monitor Record Header
     NAME - MRIODQDA
     DESCRIPTIVE NAME - Monitor Event Record
                        Domain 6 - I/O Domain
                        Record 25 - QDIO Device Activation
     DESCRIPTION - Indicates that a QDIO device has been activated.
     NOTES -
      1.  This record is emitted for only real QDIO devices for which
          z/VM CP is maintaining shadow queues.  (If CP is not shadowing
          the queues, it doesn't see the I/O and therefore can't emit
          this record.)  Typically Linux guests would use shadow queues
          but z/VM TCP/IP would not.  z/VM TCP/IP drives its real QDIO
          devices using Diag X'98' and does not use shadow queues.

#### MRIODQDA Control Block Contents

    Offsets
    Dec  Hex  Type        Len  Name (Dim)             Description

       0   0  Structure    43  IODQDA                 Start of monitor record
       0   0  Character     0  IODQDA_MRHDR           Record header. See
                                                      MRRECHDR.
       0   0  Character    20  MRHDR
       0   0  Unsigned      2  MRHDRLEN
       2   2  Unsigned      2  MRHDRZER
       4   4  Unsigned      1  MRHDRDM
       5   5  Unsigned      1  *
       6   6  Unsigned      2  MRHDRRC
       8   8  Character     8  MRHDRTOD
      16  10  Character     4  *
      20  14  Character     0  MRHDR_END
      20  14  Unsigned      2  IODQDA_RDEVDEV         Real device number (data
                                                      dev)
      22  16  Character     8  IODQDA_VMDUSER         Owning user ID.
      30  1E  Unsigned      2  IODQDA_VDEVDEV         Owner virtual device
                                                      number.
      32  20  Unsigned      2  IODQDA_QDIOFMT         QDIO format type 0=QDIO
                                                      1=FCP 2=HIPERSOCKETS
      34  22  Unsigned      2  IODQDA_QDINPCT         Number of input queues.
      36  24  Unsigned      2  IODQDA_QDIOUTCT        Number of output queues.
      38  26  Bitstring     4  IODQDA_STATUS          status bits
              1... ....        IODQDA_QDIOQMCU         QDIO multi ctlunit support
              .1.. ....        IODQDA_QDIOEBSM         QEBSM Managed QDIO
                                                      Connection
              ..1. ....        IODQDA_VDEVMBSF         Multiple Buffer Streaming
                                                      Facility in use
              ...1 ....        IODQDA_QDICOMPQ         Last Input Queue is a
                                                      Completion Queue
              .... 1...        *
              .... .1..        *
              .... ..1.        *
              .... ...1        *
      38  26  Bitstring     1  *                      reserved for future IBM
      39  27  Bitstring     1  *                      reserved for future IBM
      40  28  Bitstring     1  *                      reserved for future IBM
      42  2A  Unsigned      1  IODQDA_RDEVOSAS        OSA Subtype - This field
                                                      indicates the type of network
                                                      device. Not a Network Device:
                                                      = 0 HiperSockets: IQD CHPID =
                                                      1 External Bridged = 6 IBM
                                                      RESERVED = 7 QDIO: OSA CHPID
                                                      = 2 OSE CHPID = 2 OSD CHPID =
                                                      2 OSN CHPID = 3 IBM RESERVED
                                                      = 4 IBM RESERVED = 5
      43  2B  Bitstring     1  *                      Reserved
      44  2C  Character     0  IODQDA_END

#### MRIODQDA Cross Reference

                          Hex           Hex
    Name                  Offset Length Value

    IODQDA                     0     43
    IODQDA_END                2C      0
    IODQDA_MRHDR               0      0
    IODQDA_QDICOMPQ           26           10
    IODQDA_QDINPCT            22      2
    IODQDA_QDIOEBSM           26           40
    IODQDA_QDIOFMT            20      2
    IODQDA_QDIOQMCU           26           80
    IODQDA_QDIOUTCT           24      2
    IODQDA_RDEVDEV            14      2
    IODQDA_RDEVOSAS           2A      1
    IODQDA_STATUS             26      4
    IODQDA_VDEVDEV            1E      2
    IODQDA_VDEVMBSF           26           20
    IODQDA_VMDUSER            16      8
    MRHDR                      0     20
    MRHDR_END                 14      0
    MRHDRDM                    4      1
    MRHDRLEN                   0      2
    MRHDRRC                    6      2
    MRHDRTOD                   8      8
    MRHDRZER                   2      2

    This information is
    based on z/VM V7R2.0.

    Last updated on 09 August 2020 at 16:21:40.

    Copyright IBM Corporation, 1990, 2020