Programming Interface Information:
The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM. |
MRIODQDA
PrologControl Block Contents
Cross Reference
MRIODQDA Prolog
DSECT NAME - IODQDA FUNCTION - Map a Monitor record. LOCATED BY - Through the Monitor Control Area REFERENCED CONTROL BLOCKS - MRRECHDR Monitor Record Header NAME - MRIODQDA DESCRIPTIVE NAME - Monitor Event Record Domain 6 - I/O Domain Record 25 - QDIO Device Activation DESCRIPTION - Indicates that a QDIO device has been activated. 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.
MRIODQDA Control Block Contents
Offsets Dec Hex Type Len Name (Dim) Description 0 0 Structure 44 IODQDA Start of monitor record 0 0 Character 0 IODQDA_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 IODQDA_RDEVDEV Real device number (data dev) 22 16 Character 8 IODQDA_VMDUSER Owning user ID. 30 1E Unsigned 2 IODQDA_VDEVDEV Owner virtual device number. 32 20 Unsigned 2 IODQDA_QDIOFMT QDIO format type 0=QDIO 1=FCP 2=HIPERSOCKETS 34 22 Unsigned 2 IODQDA_QDINPCT Number of input queues. 36 24 Unsigned 2 IODQDA_QDIOUTCT Number of output queues. 38 26 Bitstring 4 IODQDA_STATUS status bits 1... .... IODQDA_QDIOQMCU QDIO multi ctlunit support .1.. .... IODQDA_QDIOEBSM QEBSM Managed QDIO Connection ..1. .... * ...1 .... * .... 1... * .... .1.. * .... ..1. * .... ...1 * 39 27 Bitstring 1 * reserved for future IBM 40 28 Bitstring 1 * reserved for future IBM 41 29 Bitstring 1 * reserved for future IBM 42 2A Character 2 * reserved for future IBM 44 2C Character 0 IODQDA_END
MRIODQDA Cross Reference
Hex Hex Name Offset Length Value IODQDA 0 44 IODQDA_END 2C 0 IODQDA_MRHDR 0 0 IODQDA_QDINPCT 22 2 IODQDA_QDIOEBSM 26 40 IODQDA_QDIOFMT 20 2 IODQDA_QDIOQMCU 26 80 IODQDA_QDIOUTCT 24 2 IODQDA_RDEVDEV 14 2 IODQDA_STATUS 26 4 IODQDA_VDEVDEV 1E 2 IODQDA_VMDUSER 16 8 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 15:27:00.
Copyright IBM Corporation, 1990, 2005