Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRIODSON
PrologControl Block Contents
Cross Reference
MRIODSON Prolog
DSECT NAME - IODSON FUNCTION - Map a Monitor record. LOCATED BY - Through the Monitor Control Area REFERENCED CONTROL BLOCKS - MRRECHDR Monitor Record Header NAME - MRIODSON DESCRIPTIVE NAME - Monitor Event Record Domain 6 - I/O Domain Record 11- Vary On Subchannel DESCRIPTION - Indicates that a subchannel has been varied online
MRIODSON Control Block Contents
Offsets Dec Hex Type Len Name (Dim) Description 0 0 Structure 44 IODSON Start of monitor record 0 0 Character 0 IODSON_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 IODSON_RDEVTYPE Device type code. Unique for each device within the class in IODSON_RDEVCLAS. 21 15 Bitstring 1 IODSON_RDEVCLAS Device class code. Unique for each class. 22 16 Unsigned 2 IODSON_RDEVDVID Device type. See IODSON_RDEVDVIV for its source. 24 18 Bitstring 1 IODSON_CALMODLN Device model identifier. See IODSON_RDEVDVIV flag for its source. 25 19 Bitstring 1 IODSON_RDEVLPM Logical path mask 26 1A Unsigned 2 IODSON_RDEVDEV Device number 28 1C Unsigned 4 IODSON_RDEVSID Host subchannel id 32 20 Character 8 IODSON_RDEVCHPS Eight channel path ids for this device 40 28 Unsigned 2 IODSON_RDEVCUID control unit id. Applicable only when IODSON_RDEVCUIV = on. 42 2A Unsigned 1 IODSON_RDEVCUMN Control unit model identifier. Applicable only when IODSON_RDEVCUIV = on. 43 2B Bitstring 1 IODSON_CALFLAGS Flag Byte 1... .... IODSON_RDEVDVIV OFF = device model number (in IODSON_RDEVDVID) and model identifier (in IODSON_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.. .... IODSON_RDEVCUIV When on, Control unit information is supplied in IODSON_RDEVCUID and IODSON_RDEVCUMN. ..1. .... * ...1 .... * .... 1... * .... .1.. * .... ..1. * .... ...1 * 44 2C Character 0 IODSON_END
MRIODSON Cross Reference
Hex Hex Name Offset Length Value IODSON 0 44 IODSON_CALFLAGS 2B 1 IODSON_CALMODLN 18 1 IODSON_END 2C 0 IODSON_MRHDR 0 0 IODSON_RDEVCHPS 20 8 IODSON_RDEVCLAS 15 1 IODSON_RDEVCUID 28 2 IODSON_RDEVCUIV 2B 40 IODSON_RDEVCUMN 2A 1 IODSON_RDEVDEV 1A 2 IODSON_RDEVDVID 16 2 IODSON_RDEVDVIV 2B 80 IODSON_RDEVLPM 19 1 IODSON_RDEVSID 1C 4 IODSON_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 V6R1.0.
Last updated on 8 Oct 2009 at 21:08:13.
Copyright IBM Corporation, 1990, 2009