z/VM: CP Commands and Utilities Reference - z/VM - IBM

QUERY VIRTUAL FCP
QIOASSIST status
The status is one of the following:
1102 z/VM: CP Commands and Utilities Reference
v QIOASSIST NOT AVAILABLE – indicates that the processor does not
support the queue-I/O assist (QDIO performance assist for V=V guests), or
z/VM is running in an environment where the queue-I/O assist is not
available. See the SET QIOAssist command for a list of requirements to use
the queue-I/O assist.
v QIOASSIST- ELIGIBLE – indicates the device is eligible to use the
queue-I/O assist (QDIO performance assist for V=V guests), when the virtual
machine begins using the device with no traces in effect.
v QIOASSIST DISABLED – indicates the device is not permitted to use the
queue-I/O assist (QDIO performance assist for V=V guests). The device must
have been attached to the virtual machine with the NOQIOAssist option
either on the CP ATTACH command or the system-directory DEDICATE
statement.
v QIOASSIST ACTIVE – indicates the queue-I/O assist (QDIO performance
assist for V=V guests) is active and in-use.
type
indicates the type of QDIO data queue:
INP Input
OUT Output
sync
indicates whether the program and CP versions of the QDIO data queue are
currently synchronized:
+ Input
– Output
priority
indicates the priority of the QDIO data queue. All input and output queues are
listed according to their queue priority, with the lowest number queues having
the highest priority.
IOCNT = nnnnnnnn
specifies the number of data transfers that have completed since the QDIO data
queue was last activated by the program, in decimal. CP increments the IOCNT
each time a QDIO data buffer changes from an adapter-owned state to a
program-owned state.
BYTES = nnnnnnnnnnnnnnnn
specifies the number of bytes transferred on that queue since device activation,
in hexadecimal.
ADP = nnn
specifies the number of QDIO data buffers currently pending or available for a
direct data transfer. This is the number of QDIO data buffers currently owned by
the adapter.
PROG = nnn
specifies the number of QDIO data buffers currently owned by the program
running in the virtual machine that have storage blocks allocated.
UNAVAIL = nnn
specifies the number of QDIO data buffers currently owned by the program
running in the virtual machine that have no storage blocks allocated.