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Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRIODQDD
PrologControl Block Contents
Cross Reference
MRIODQDD Prolog
DSECT NAME - IODQDD
FUNCTION - Map a Monitor record.
LOCATED BY -
Through the Monitor Control Area
REFERENCED CONTROL BLOCKS -
MRRECHDR Monitor Record Header
NAME - MRIODQDD
DESCRIPTIVE NAME - Monitor Event Record
Domain 6 - I/O Domain
Record 27 - QDIO Device Deactivation
DESCRIPTION - Indicates deactivation of a QDIO device.
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.
2. The byte count fields in this record are not correct
if the QDIO device is an FCP device. This is because
of limits in the FCP protocol.
MRIODQDD Control Block Contents
Offsets
Dec Hex Type Len Name (Dim) Description
0 0 Structure 346 IODQDD Start of monitor record
0 0 Character 0 IODQDD_MRHDR Record header. See MRRECHDR.
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 Unsigned 2 IODQDD_RDEVDEV Real device number (data dev)
22 16 Unsigned *
24 18 Unsigned 4 IODQDD_QDIOCSGR Count of SIGA-r instructions
issued by guest.
28 1C Unsigned 4 IODQDD_QDIOCSGW Count of SIGA-w instructions
issued by guest.
32 20 Unsigned 4 IODQDD_QDIOCSGS Count of SIGA-s instructions
issued by guest.
36 24 Unsigned 4 IODQDD_RDEVVSSR Count of SIGA-r instructions
issued by CP.
40 28 Unsigned 4 IODQDD_RDEVVSSW Count of SIGA-w instructions
issued by CP.
44 2C Unsigned 4 IODQDD_RDEVVSSS Count of SIGA-w instructions
issued by CP.
48 30 Character 8 IODQDD_BFTOA QDIO buffers sent to adapter
(unsigned-64)
56 38 Character 8 IODQDD_BYTOA Bytes sent to adapter
(unsigned-64)
64 40 Character 8 IODQDD_BFFRA QDIO buffers taken from
adapter (unsigned-64)
72 48 Character 8 IODQDD_BYFRA Bytes taken from adapter
(unsigned-64)
80 50 Unsigned 4 IODQDD_RDEVVSIN Count of all PCI interrupts
for this device
84 54 Unsigned 4 IODQDD_RDEVVSIR Count of PCI interrupts that
require a response and cause an
input operation
88 58 Unsigned 4 IODQDD_RDEVVSID Count of PCI interrupts that
are discarded because they do
not require a response.
92 5C Character 48 IODQDD_QEBSM_FIELDS All QEBSM Counters
92 5C Unsigned 4 IODQDD_QSBSQBVM Count of SQBS instructions
issued by z/VM on behalf of a
guest.
96 60 Unsigned 4 IODQDD_QSBSQBPV Count of SQBS instructions
partially handled by z/VM.
100 64 Unsigned 4 IODQDD_QSBEQBVM Count of EQBS instructions
issued by z/VM on behalf of a
guest.
104 68 Unsigned 4 IODQDD_QSBEQBPV Count of EQBS instructions
partially handled by z/VM.
108 6C Unsigned 4 IODQDD_QSBLOCK Count of times CP Millicode
was unable to acquire the
QIOBK/QSD Lock
112 70 Unsigned 4 IODQDD_QSBFOBX Count of times there was no
available FOBLKs on a
processors available list.
116 74 Unsigned 4 IODQDD_QSBOLCK Count of times CP Millicode
was unabled to acquire thr
QIOBK/QSD Lock of a format 1
output queue.
120 78 Unsigned 4 IODQDD_QSBSIGWT Count of SIGA-wt instructions
issued by z/VM.
124 7C Unsigned 4 IODQDD_QSBSIGRT Count of SIGA-rt instructions
issued by z/VM.
128 80 Unsigned 4 IODQDD_QSBSIGLT Count of SIGA-lt instructions
issued by z/VM.
132 84 Unsigned 4 IODQDD_SUMOFPIN Count of times CP Millicode
had a problem pinning a guest
page.
136 88 Unsigned 4 IODQDD_SUMUNPIN Count of times CP Millicode
had a problem unpinning a guest
page.
140 8C Unsigned 1 IODQDD_RDEVOSAS OSA Subtype - This field
indicates the type of network
device.
Not a network device: = 0
HiperSockets:
IQD CHPID = 1
QDIO:
OSA CHPID = 2
OSE CHPID = 2
OSD CHPID = 2
OSN CHPID = 3
OSM CHPID = 4
OSX CHPID = 5
141 8D Character 207 IODQDD_RESVD Reserved.
348 15C Character 0 IODQDD_END
MRIODQDD Cross Reference
Hex Hex
Name Offset Length Value
IODQDD 0 346
IODQDD_BFFRA 40 8
IODQDD_BFTOA 30 8
IODQDD_BYFRA 48 8
IODQDD_BYTOA 38 8
IODQDD_END 15C 0
IODQDD_MRHDR 0 0
IODQDD_QDIOCSGR 18 4
IODQDD_QDIOCSGS 20 4
IODQDD_QDIOCSGW 1C 4
IODQDD_QEBSM_FIELDS 5C 48
IODQDD_QSBEQBPV 68 4
IODQDD_QSBEQBVM 64 4
IODQDD_QSBFOBX 70 4
IODQDD_QSBLOCK 6C 4
IODQDD_QSBOLCK 74 4
IODQDD_QSBSIGLT 80 4
IODQDD_QSBSIGRT 7C 4
IODQDD_QSBSIGWT 78 4
IODQDD_QSBSQBPV 60 4
IODQDD_QSBSQBVM 5C 4
IODQDD_RDEVDEV 14 2
IODQDD_RDEVOSAS 8C 1
IODQDD_RDEVVSID 58 4
IODQDD_RDEVVSIN 50 4
IODQDD_RDEVVSIR 54 4
IODQDD_RDEVVSSR 24 4
IODQDD_RDEVVSSS 2C 4
IODQDD_RDEVVSSW 28 4
IODQDD_RESVD 8D 207
IODQDD_SUMOFPIN 84 4
IODQDD_SUMUNPIN 88 4
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 10 Nov 2010 at 13:04:13.
Copyright IBM Corporation, 1990, 2010