z/OS MVS Programming: Sysplex Services Reference
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Parameter Descriptions

z/OS MVS Programming: Sysplex Services Reference
SA38-0658-00

The parameter descriptions for REQUEST=CROSS_INVALLIST are listed in alphabetical order. Default values are underlined:
REQUEST=CROSS_INVALLIST
Use this input parameter to specify that a cross-invalidate operation be performed against a given set of 1 to 4096 entries specified by a list of names in the BUFFER storage area or the buffers specified by BUFLIST. STARTINDEX and ENDINDEX determine the set of names provided by the user in the BUFFER or BUFLIST that will be processed by the request. Valid STARTINDEX and ENDINDEX values are 1-origin. The result of the operation is that with the exception of the connection specified by CONTOKEN, all connections that registered interest in the specified entries have interest deregistered and a cross-invalidate performed against their local caches.
,ANSAREA=NO_ANSAREA
,ANSAREA=ansarea
Use this output parameter to specify an answer area to contain information returned from the request if the request does not complete successfully. See the return and reason codes descriptions for this request to determine which fields in the answer area are valid for non-zero return codes.

The format of the answer area is described by the IXLYCAA mapping macro.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of an area (with a length of ANSLEN) where the information returned from the request will be put.

,ANSLEN=anslen
Use this input parameter to specify the size of the storage area specified by ANSAREA.

Use either CAALEVEL0LEN or CAALEVEL1LEN of the IXLYCAA mapping macro to determine the minimum size of the answer area. The answer area length must be at least large enough to accomodate the level of the IXLYCAA mapping appropriate to the requested function. When the value of PLISTVER is 0 — 3, the minimum answer area length is CAALEVEL0LEN; when the value of PLISTVER is 4 — 6, the minimum answer area length is CAALEVEL1LEN.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a 2-byte field that contains the length of the answer area (ANSAREA).

,BUFADDRSIZE=31
,BUFADDRSIZE=64
Use this input parameter to specify whether a 31-bit or a 64-bit address is specified by a BUFLIST entry.
31
The entry in BUFLIST is 31 bits in size.
64
The entry in BUFLIST is 64 bits in size.
,BUFADDRTYPE=VIRTUAL
,BUFADDRTYPE=REAL
Use this input parameter to specify whether the buffer addresses specified in the BUFLIST list are virtual storage or real storage addresses.
VIRTUAL
The buffer addresses are virtual storage addresses. The virtual storage can be pageable or nonpageable. See the PAGEABLE parameter for information about managing storage binds when specifying virtual storage addresses.
REAL
The buffer addresses are real storage addresses.

It is the caller's responsibility to manage the binds between the data buffer virtual storage and the real storage addresses provided. The caller must ensure that the data buffer virtual storage remains bound to the real storage addresses provided until the request completes.

,BUFALET=NO_BUFALET
,BUFALET=bufalet
Use this input parameter to specify an access list entry token (ALET) to be used in referencing all of the buffers specified by BUFLIST.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a 4-byte field that contains the ALET.

,BUFFER=buffer
Use this input parameter to specify a buffer area to contain the set of 16-byte structure entry names on which a cross-invalidate operation is to be performed.

Only 31-bit addressable virtual storage areas (below 2GB) are supported by the BUFFER specification. High virtual storage areas (above 2GB) can only be specified via the BUFLIST specification.

Requirements for the buffer length are as follows:
  • If you specify a buffer size of less than or equal to 4096 bytes, you must ensure that the buffer:
    • Is 256, 512, 1024, 2048, or 4096 bytes.
    • Starts on a 256-byte boundary.
    • Does not cross a 4096-byte boundary.
    • Does not start below storage address 512.
  • If you specify a buffer size of greater than 4096 bytes, you must ensure that the buffer:
    • Is a multiple of 4096 bytes.
    • Is less than or equal to 65536 bytes.
    • Starts on a 4096-byte boundary.
    • Does not start below storage address 512.

See the BUFSIZE parameter description for defining the size of the buffer. See z/OS MVS Programming: Sysplex Services Guide for more information on buffers.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of an area (with a length of BUFSIZE) to contain the structure entry names.

,BUFINCRNUM=bufincrnum
Use this input parameter to specify the number of 256-byte segments comprising each buffer in the BUFLIST list.

Valid BUFINCRNUM values are 1,2,4,8, or 16, which correspond to BUFLIST buffer sizes of 256, 512, 1024, 2048, and 4096 bytes respectively.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a 1-byte field that contains 1,2,4,8, or 16.

,BUFLIST=buflist
Use this input parameter to specify a list of buffers to hold the structure entry names identifying the entries on which a cross-invalidate operation is to be performed. BUFLIST specifies a 128-byte storage area that consists of a list of 1 to 16 buffer address elements.

Either 31-bit addressable (below 2GB) or 64-bit addressable (above 2GB) real or virtual storage areas are supported for the BUFLIST specification, depending on the specification for the BUFADDRTYPE and BUFFADDRSIZE keywords. However, pageable high shared virtual storage areas (above 2GB) may not be used.

The format of the list is a set of 8-byte elements. The BUFADDRSIZE keyword denotes whether four or eight bytes of the element are used.
  • If BUFADDRSIZE=31 is specified, then the first four bytes of each element are reserved space and the last four bytes contain the address of the buffer.
  • If BUFADDRSIZE=64 is specified, then the full eight bytes specify the address of the buffer.
The BUFLIST buffers must:
  • Reside in the same address space or data space as defined by BUFALET.
  • Be the same size: either 256, 512, 1024, 2048, or 4096 bytes as defined by BUFINCRNUM.
  • Start on a 256-byte boundary and not cross a 4096-byte boundary.
  • Not start below storage address 512.
Note: The buffers do not have to be contiguous in storage. XES treats BUFLIST buffers as a single buffer even if the buffers are not contiguous.

See the BUFNUM and BUFINCRNUM keyword descriptions for specifying the number and size of buffers.

See z/OS MVS Programming: Sysplex Services Guide for more information on buffers.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a 128-byte field that contains a list of buffer addresses.

,BUFNUM=bufnum
Use this input parameter to specify the number of buffers in the BUFLIST list. Valid BUFNUM values are from 1 to 16.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a 1-byte field that contains the number of buffers (1 to 16) in the list (BUFLIST)

,BUFSIZE=bufsize
Use this input parameter to specify the size of the BUFFER area. See the BUFFER parameter description for valid buffer sizes.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a fullword field that contains the size of the buffer (BUFFER) in bytes.

,BUFSTGKEY=CALLERS_KEY
,BUFSTGKEY=bufstgkey
Use this input parameter to specify a storage key that you define and use when referencing the buffer specified by BUFFER.

If you do not specify BUFSTGKEY, or if you specify BUFSTGKEY=CALLERS_KEY, all references to the buffer are in the caller's PSW key.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a 1-byte field that contains the storage key in the format kkkkxxxx, where kkkk is the key and xxxx is ignored.

,CONTOKEN=contoken
Use this input parameter to specify the connect token that was returned by the IXLCONN service in the IXLCONN answer area, mapped by IXLYCONA. The connect token uniquely identifies your connection to the cache structure, and must be specified on each IXLCACHE invocation.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a 16-byte field that contains the connect token.

,ENDINDEX=endindex
Use this input parameter to specify the index into the name elements in the buffer storage area or the buffers specified by BUFLIST of the last name element to be processed. The index value must be greater than or equal to the value specified for STARTINDEX.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a halfword field containing the ending index value.

ERRORACTION=CONTINUE
ERRORACTION=TERMINATE
Use this input parameter to specify whether processing is to continue with the next name element if an entry is not found.
CONTINUE
If an error occurs, processing is to continue with the next name element.
TERMINATE
If an error occurs, processing is to halt and the index of the name element that caused the error is returned in the answer area.
,MF=S
,MF=(L,mfctrl)
,MF=(L,mfctrl,mfattr)
,MF=(L,mfctrl,0D)
,MF=(E,mfctrl)
,MF=(E,mfctrl,COMPLETE)
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 service.

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 can 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 stores the parameters into the storage area defined by the list form, and generates the macro invocation to transfer control to the service.
,mfctrl
Use this output parameter to specify a storage area to contain the parameters.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of the parameter list.

,mfattr
Use this input parameter to specify the name of a 1- to 60-character string that can contain any value that is valid on an assembler DS pseudo-op. You can use this parameter to force boundary alignment of the parameter list. If you do not code mfattr, the system provides a value of 0D, which forces the parameter list to a doubleword boundary.
,COMPLETE
Use this input parameter to require that the system check for required parameters and supply defaults for omitted optional parameters.
Note: In the macro expansion you might see some defaults for optional parameters that are not documented here. The ones that are not documented do not have any effect on the macro. For example, if SMILE=var were an optional parameter and the default is SMILE=NO_SMILE then it would not be documented. However, if the default was SMILE=:-), then it would be documented because a value would be the default.
,MODE=SYNCSUSPEND
,MODE=SYNCECB
,MODE=SYNCEXIT
,MODE=SYNCTOKEN
,MODE=ASYNCECB
,MODE=ASYNCEXIT
,MODE=ASYNCTOKEN
Use this input parameter to specify:
  • Whether the request is to be performed synchronously or asynchronously
  • How you wish to be notified of request completion if the request is processed asynchronously.
See z/OS MVS Programming: Sysplex Services Guide for more information on understanding synchronous and asynchronous cache operations.
SYNCSUSPEND
The request processes synchronously. If necessary, the request is suspended until it can complete synchronously. To use this option, your program must be enabled for I/O and external interrupts.
SYNCECB
The request processes synchronously if possible. If the request processes asynchronously, the ECB specified by REQECB is posted when the request completes.
SYNCEXIT
The request processes synchronously if possible. If the request processes asynchronously, your complete exit is given control when the request completes.
SYNCTOKEN
The request processes synchronously if possible. If the request processes asynchronously, an asynchronous request token is returned to the area specified by REQTOKEN. Use the returned request token on the IXLFCOMP macro to determine whether your request has completed.
Note: ANSAREA is a required parameter when MODE=SYNCTOKEN is specified.
ASYNCECB
The request processes asynchronously. The ECB specified by REQECB is posted when the request completes.
ASYNCEXIT
The request processes asynchronously. Your complete exit is given control when the request completes.
ASYNCTOKEN
The request processes asynchronously. An asynchronous request token is returned to the area specified by REQTOKEN. Use the returned request token on the IXLFCOMP macro to determine whether your request has completed.
Note: ANSAREA is a required parameter when MODE=ASYNCTOKEN is specified.
,PLISTVER=IMPLIED_VERSION
,PLISTVER=MAX
,PLISTVER=plistver
Use this input parameter to specify the version of the macro. See Understanding IXLCACHE Version Support for a description of the options available with PLISTVER.
,REQDATA=NO_REQDATA
,REQDATA=reqdata
Use this input parameter with MODE=SYNCEXIT or MODE=ASYNCEXIT to pass any data you choose to the complete exit. The exit will get control only if the request is processed asynchronously.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of an 8-byte field that contains the data to be passed to the complete exit.

,REQECB=reqecb
Use this output parameter with either MODE=SYNCECB or MODE=ASYNCECB to specify the address of an ECB, which is to be posted when the request completes if the request was processed asynchronously.
Before coding REQECB, you must ensure that:
  • You initialize the ECB before you issue the request.
  • The ECB resides in either common storage or the home address space where IXLCONN was issued.
  • Any tasks that wait for the ECB to be posted reside in the home address space where IXLCONN was issued.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a 4-byte field that contains the address of the ECB to be posted when the request completes. The ECB must be aligned on a fullword boundary.

,REQID=NO_REQID
,REQID=reqid
Use this input parameter to specify a user-defined request identifier to be associated with the request. You can specify this request identifier on the IXLPURGE macro to cancel a request that has not yet been processed.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of an 8-byte field that contains the user-defined request identifier.

,REQTOKEN=reqtoken
Use this output parameter with either MODE=SYNCTOKEN or MODE=ASYNCTOKEN to specify the address of a storage area to receive the request token that is returned when the request will be processed asynchronously. This token, which uniquely identifies the request, must be used as input to the IXLFCOMP macro, which you use to determine if the request has completed.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a 16-byte field where the system will put the request token.

,RETCODE=retcode
Use this output parameter to specify a field to contain the return code. (The return code is also returned in register 15.)

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a 4-byte field that will contain the return code when the request has completed.

,RSNCODE=rsncode
Use this output parameter to specify a field to contain the reason code returned, if applicable. (The reason code is also returned in register 0.)

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a 4-byte field that will contain the reason code (if any) when the request has completed.

,STARTINDEX=startindex
Use this input parameter to specify the starting index for name element processing. Valid STARTINDEX values are from 1 to the value of ENDINDEX. The first name element has index number 1.

To Code: Specify the RS-type name or address (using a register from 2 to 12) of a halfword field containing the starting index value.

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