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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. |
MRIODQDS
PrologControl Block Contents
Cross Reference
MRIODQDS Prolog
DSECT NAME - IODQDS
FUNCTION - Map a Monitor record.
LOCATED BY -
Through the Monitor Control Area
REFERENCED CONTROL BLOCKS -
MRRECHDR Monitor Record Header
NAME - MRIODQDS
DESCRIPTIVE NAME - Monitor Sample Record
Domain 6 - I/O Domain
Record 26 - QDIO Device Activity Sample
DESCRIPTION - Indicates activity on 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.
MRIODQDS Control Block Contents
Offsets
Dec Hex Type Len Name (Dim) Description
0 0 Structure 348 IODQDS Start of monitor record
0 0 Character 0 IODQDS_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 IODQDS_RDEVDEV Real device number (data dev)
22 16 Unsigned *
24 18 Unsigned 4 IODQDS_QDIOCSGR Count of SIGA-r instructions
issued by guest.
28 1C Unsigned 4 IODQDS_QDIOCSGW Count of SIGA-w instructions
issued by guest.
32 20 Unsigned 4 IODQDS_QDIOCSGS Count of SIGA-s instructions
issued by guest.
36 24 Unsigned 4 IODQDS_RDEVVSSR Count of SIGA-r instructions
issued by CP.
40 28 Unsigned 4 IODQDS_RDEVVSSW Count of SIGA-w instructions
issued by CP.
44 2C Unsigned 4 IODQDS_RDEVVSSS Count of SIGA-w instructions
issued by CP.
48 30 Character 8 IODQDS_BFTOA QDIO buffers sent to adapter
(unsigned-64)
56 38 Character 8 IODQDS_BYTOA Bytes sent to adapter
(unsigned-64)
64 40 Character 8 IODQDS_BFFRA QDIO buffers taken from
adapter (unsigned-64)
72 48 Character 8 IODQDS_BYFRA Bytes taken from adapter
(unsigned-64)
80 50 Unsigned 4 IODQDS_RDEVVSIN Count of all PCI interrupts
for this device
84 54 Unsigned 4 IODQDS_RDEVVSIR Count of PCI interrupts that
require a response and cause an
input operation
88 58 Unsigned 4 IODQDS_RDEVVSID Count of PCI interrupts that
are discarded because they do
not require a response.
92 5C Character 48 IODQDS_QEBSM_FIELDS All QEBSM Counters
92 5C Unsigned 4 IODQDS_QSBSQBVM Count of SQBS instructions
issued by z/VM on behalf of a
guest.
96 60 Unsigned 4 IODQDS_QSBSQBPV Count of SQBS instructions
partially handled by z/VM.
100 64 Unsigned 4 IODQDS_QSBEQBVM Count of EQBS instructions
issued by z/VM on behalf of a
guest.
104 68 Unsigned 4 IODQDS_QSBEQBPV Count of EQBS instructions
partially handled by z/VM.
108 6C Unsigned 4 IODQDS_QSBLOCK Count of times CP Millicode
was unable to acquire the
QIOBK/QSD Lock
112 70 Unsigned 4 IODQDS_QSBFOBX Count of times there was no
available FOBLKs on a
processors available list.
116 74 Unsigned 4 IODQDS_QSBOLCK Count of times CP Millicode
was unabled to acquire thr
QIOBK/QSD Lock of a format 1
output queue.
120 78 Unsigned 4 IODQDS_QSBSIGWT Count of SIGA-wt instructions
issued by z/VM.
124 7C Unsigned 4 IODQDS_QSBSIGRT Count of SIGA-rt instructions
issued by z/VM.
128 80 Unsigned 4 IODQDS_QSBSIGLT Count of SIGA-lt instructions
issued by z/VM.
132 84 Unsigned 4 IODQDS_SUMOFPIN Count of times CP Millicode
had a problem pinning a guest
page.
136 88 Unsigned 4 IODQDS_SUMUNPIN Count of times CP Millicode
had a problem unpinning a guest
page.
140 8C Character 208 IODQDS_RESVD Reserved.
348 15C Character 0 IODQDS_END
MRIODQDS Cross Reference
Hex Hex
Name Offset Length Value
IODQDS 0 348
IODQDS_BFFRA 40 8
IODQDS_BFTOA 30 8
IODQDS_BYFRA 48 8
IODQDS_BYTOA 38 8
IODQDS_END 15C 0
IODQDS_MRHDR 0 0
IODQDS_QDIOCSGR 18 4
IODQDS_QDIOCSGS 20 4
IODQDS_QDIOCSGW 1C 4
IODQDS_QEBSM_FIELDS 5C 48
IODQDS_QSBEQBPV 68 4
IODQDS_QSBEQBVM 64 4
IODQDS_QSBFOBX 70 4
IODQDS_QSBLOCK 6C 4
IODQDS_QSBOLCK 74 4
IODQDS_QSBSIGLT 80 4
IODQDS_QSBSIGRT 7C 4
IODQDS_QSBSIGWT 78 4
IODQDS_QSBSQBPV 60 4
IODQDS_QSBSQBVM 5C 4
IODQDS_RDEVDEV 14 2
IODQDS_RDEVVSID 58 4
IODQDS_RDEVVSIN 50 4
IODQDS_RDEVVSIR 54 4
IODQDS_RDEVVSSR 24 4
IODQDS_RDEVVSSS 2C 4
IODQDS_RDEVVSSW 28 4
IODQDS_RESVD 8C 208
IODQDS_SUMOFPIN 84 4
IODQDS_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 V5R2.0.
Last updated on 12 Dec 2005 at 15:27:14.
Copyright IBM Corporation, 1990, 2005