MRIODATS

MRIODATS Prolog

 DSECT NAME - IODATS
 FUNCTION - Map a Monitor record.
 LOCATED BY -
        Through the Monitor Control Area
 REFERENCED CONTROL BLOCKS -
        MRRECHDR    Monitor Record Header
 NAME - MRIODATS
 DESCRIPTIVE NAME - Monitor Event Record
                    Domain 6 - I/O Domain
                    Record 9 - Attach Shared Device
 DESCRIPTION - Indicates that a Shared device has been attached
               to the system.




MRIODATS Control Block Contents
Offsets
Dec Hex  Type       Len  Name (Dim)          Description
 
  0   0  Structure   44  IODATS              Start of monitor record
  0   0  Character    0  IODATS_MRHDR        Record header. See MRRECHDR for
                                             details.
  0   0  Character   20  MRHDR               
  0   0  Unsigned     2  MRHDRLEN            record length in bytes
  2   2  Unsigned     2  MRHDRZER            field of zeros
  4   4  Unsigned     1  MRHDRDM             domain identifier
  5   5  Unsigned     1  *                   
  6   6  Unsigned     2  MRHDRRC             record identifier
  8   8  Character    8  MRHDRTOD            Time at which this record was
                                             built. In time-of-day (TOD) clock
                                             format. See IBM System 370 XA
                                             Principle of Operation for
                                             explanation of format.
 16  10  Character    4  *                   
 20  14  Character    0  MRHDR_END           End of header
 20  14  Bitstring    1  IODATS_RDEVTYPE     Device type code. Unique for
                                             each device within the class in
                                             IODATS_RDEVCLAS.
 21  15  Bitstring    1  IODATS_RDEVCLAS     Device class code. Unique for
                                             each class.
 22  16  Unsigned     2  IODATS_RDEVDVID     Device type number in packed
                                             decimal. See IODATS_RDEVDVIV for
                                             its source.
 24  18  Bitstring    1  IODATS_CALMODLN     Device model identifier. See
                                             IODATS_RDEVDVIV flag for its
                                             source.
 25  19  Bitstring    1  IODATS_RDEVLPM      Logical path mask
 26  1A  Unsigned     2  IODATS_RDEVDEV      Device number in packed decimal
 28  1C  Unsigned     4  IODATS_RDEVSID      Host subchannel id
 32  20  Character    8  IODATS_RDEVCHPS     Eight channel path ids for this
                                             device
 40  28  Unsigned     2  IODATS_RDEVCUID     control unit id in packed
                                             decimal. Applicable only when
                                             IODATS_RDEVCUIV = on.
 42  2A  Unsigned     1  IODATS_RDEVCUMN     Control unit model identifier.
                                             Applicable only when
                                             IODATS_RDEVCUIV = on.
 43  2B  Bitstring    1  IODATS_CALFLAGS     Flag byte
          1... ....      IODATS_RDEVDVIV     OFF = device model number (in
                                             IODATS_RDEVDVID) and model
                                             identifier (in IODATS_CALMODLN)
                                             were provided by user through the
                                             RDEVICE macro or device sensing at
                                             IPL time. ON = device type number
                                             and model identifier were provided
                                             by the device at device
                                             initialization time.
          .1.. ....      IODATS_RDEVCUIV     When on, IODATS_RDEVCUID and
                                             IODATS_RDEVCUMN contain valid
                                             control unit information
          ..1. ....      *                   
          ...1 ....      *                   
          .... 1...      *                   
          .... .1..      *                   
          .... ..1.      *                   
          .... ...1      *                   
 44  2C  Character    0  IODATS_END          




MRIODATS Cross Reference
                      Hex           Hex
Name                 Offset Length Value
 
IODATS                  0     44
IODATS_CALFLAGS        2B      1
IODATS_CALMODLN        18      1
IODATS_END             2C      0
IODATS_MRHDR            0      0
IODATS_RDEVCHPS        20      8
IODATS_RDEVCLAS        15      1
IODATS_RDEVCUID        28      2
IODATS_RDEVCUIV        2B           40
IODATS_RDEVCUMN        2A      1
IODATS_RDEVDEV         1A      2
IODATS_RDEVDVID        16      2
IODATS_RDEVDVIV        2B           80
IODATS_RDEVLPM         19      1
IODATS_RDEVSID         1C      4
IODATS_RDEVTYPE        14      1
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 V4R4.0.

Last updated on 22 Jul 2003 at 15:04:23.

Copyright IBM Corporation, 1990, 2003