IFAQUERY — SMF configuration query service

The requirements for the caller are:

None.

None.

There are no input register requirements for issuing the IFAQUERY macro.

None.

The standard form of the IFAQUERY macro is written as follows:

DETAILS=LOGSTREAM

An optional keyword input indicating the type of information that the SMF query service should return.

DEFAULT: LOGSTREAM.

RETCODE=retcode

An optional output parameter into which the return code is to be copied from GPR 15.

To code: Specify the RS-type address of a fullword field, or register (2) - (12) (ASM only).

RSNCODE=rsncode

An optional output parameter into which the reason code is to be copied from GPR 0.

To code: Specify the RS-type address of a fullword field, or address in register (2) - (12) (ASM only).

PLISTVER=plistver|IMPLIED_VERSION

An optional byte input decimal value in the "0-0" range that specifies the macro version. PLISTVER is the only parameter allowed on the list form of MF. This parameter determines which parameter list the system generates. PLISTVER is an optional input parameter on all forms of the macro, including the list form. When using PLISTVER, specify it on all macro forms used for a request and with the same value on all of the macro forms. The values can be:

• IMPLIED_VERSION, which is the lowest version that allows all parameters specified on the request to be processed. If you omit the PLISTVER parameter, IMPLIED_VERSION is the default.
• MAX, if you want the parameter list to be the largest size currently supported. This size might grow from release to release and affect the amount of storage that your program needs.

  If you can tolerate the size change, IBM® suggests that you always specify PLISTVER=MAX on the list form of the macro. Specifying MAX ensures that the list-form parameter list is always long enough to hold all the parameters you might specify on the execute form, when both are assembled with the same level of the system. In this way, MAX ensures that the parameter list does not overwrite nearby storage.

• 1, if you use the currently available parameters.

To code: Specify one of the following:

• IMPLIED_VERSION
• MAX
• 1

,MF=S

,MF=(L,mfctrl,mfattr, 0D)

MF=(E,fctrl,COMPLETE

An optional keyword input that specifies the macro form.

Use MF=S to specify the standard form of the macro, which builds an inline parameter list and generates the macro invocation to transfer control to the servIice. MF=S is the default.

Use MF=L to specify the list form of the macro. Use the list form together with the execute form of the macro for applications that require reentrant code. The list form defines an area of storage that the execute form uses to store the parameters. Only the PLISTVER parameter may be coded with the list form of the macro.

Use MF=E to specify the execute form of the macro. Use the execute form together with the list form of the macro for applications that require reentrant code. The execute form of the macro stores the parameters into the storage area defined by the list form, and generates the macro invocation to transfer control to the service.

,fctrl

The name of a storage area to contain the parameters. For MF=S and MF=E, this can be an RS-type address or an address in register (1) - (12).

mfattr

An optional 1- 60-character input string that you use to force boundary alignment of the parameter list. Use a value of 0F to force the parameter list to a word boundary, or 0D to force the parameter list to a doubleword boundary. If you do not code attr, the system provides a value of 0D.

COMPLETE

Specifies that the system is to check for required parameters and supply defaults for omitted optional parameters.

None.

The following table contains hexadecimal return and reason codes, the equate symbols associated with each reason code, and the meaning for each return and reason code.