MRIODATD

MRIODATD Prolog

 DSECT NAME - IODATD
 FUNCTION - Map a Monitor record.
 LOCATED BY -
        Through the Monitor Control Area
 REFERENCED CONTROL BLOCKS -
        MRRECHDR    Monitor Record Header
 NAME - MRIODATD
 DESCRIPTIVE NAME - Monitor Event Record
                    Domain 6 - I/O Domain
                    Record 5 - Attach Device
 DESCRIPTION - Indicates that a device has been attached to the
               system.

MRIODATD Control Block Contents

Offsets
Dec  Hex  Type        Len  Name (Dim)             Description
 
   0   0  Structure    44  IODATD                 Start of monitor record
   0   0  Character     0  IODATD_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  IODATD_RDEVTYPE        Device type code. Unique
                                                  for each device within the
                                                  class in IODATD_RDEVCLAS.
  21  15  Bitstring     1  IODATD_RDEVCLAS        Device class code. Unique
                                                  for each class.
  22  16  Unsigned      2  IODATD_RDEVDVID        Device type number in
                                                  packed decimal. See
                                                  IODATD_RDEVDVIV for its
                                                  source.
  24  18  Bitstring     1  IODATD_CALMODLN        Device model identifier.
                                                  See IODATD_RDEVDVIV flag for
                                                  its source.
  25  19  Bitstring     1  IODATD_RDEVLPM         Logical path mask
  26  1A  Unsigned      2  IODATD_RDEVDEV         Device number in packed
                                                  decimal
  28  1C  Unsigned      4  IODATD_RDEVSID         Host subchannel id
  32  20  Character     8  IODATD_RDEVCHPS        Eight channel path ids for
                                                  this device
  40  28  Unsigned      2  IODATD_RDEVCUID        control unit id in packed
                                                  decimal. Applicable only when
                                                  IODATD_RDEVCUIV = on.
  42  2A  Unsigned      1  IODATD_RDEVCUMN        Control unit model
                                                  identifier. Applicable only
                                                  when IODATD_RDEVCUIV = on.
  43  2B  Bitstring     1  IODATD_CALFLAGS        Flag byte
          1... ....        IODATD_RDEVDVIV         OFF = device model
                                                  identifier IODATD_RDEVDVID)
                                                  and model identifier (in
                                                  IODATD_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.. ....        IODATD_RDEVCUIV         When on, Control unit
                                                  information is supplied in
                                                  IODATD_RDEVCUID and
                                                  IODATD_RDEVCUMN.
          ..1. ....        *                       
          ...1 ....        *                       
          .... 1...        *                       
          .... .1..        *                       
          .... ..1.        *                       
          .... ...1        *                       
  44  2C  Character     0  IODATD_END             

MRIODATD Cross Reference

                      Hex           Hex
Name                 Offset Length Value
 
IODATD                     0     44
IODATD_CALFLAGS           2B      1
IODATD_CALMODLN           18      1
IODATD_END                2C      0
IODATD_MRHDR               0      0
IODATD_RDEVCHPS           20      8
IODATD_RDEVCLAS           15      1
IODATD_RDEVCUID           28      2
IODATD_RDEVCUIV           2B           40
IODATD_RDEVCUMN           2A      1
IODATD_RDEVDEV            1A      2
IODATD_RDEVDVID           16      2
IODATD_RDEVDVIV           2B           80
IODATD_RDEVLPM            19      1
IODATD_RDEVSID            1C      4
IODATD_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 V6R3.0.

Last updated on 22 Jul 2013 at 15:07:38.

Copyright IBM Corporation, 1990, 2013