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 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 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 256 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_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 5C 256 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 V5R1.0.
Last updated on 03 Jun 2005 at 13:46:22.
Copyright IBM Corporation, 1990, 2004