gtps1m3wSystem Macros

MSPIC-Control MPIF Device

Use this system macro with the Multi-Processor Interconnect Facility (MPIF) support programs to schedule device control functions other than the normal read or write channel programs generated by MPIF itself.

Required Authorizations
Key0 Restricted System Common Storage

X

Format




LEVEL=Dx
A core block reference word and associated file address reference word (D0-DF) must be specified.

SUBREG=sda_reg
This required parameter specifies the general register (R0 through R6) which contains the relevant symbolic device address (SDA).

TYPE
This required parameter specifies one of the following options of the MSPIC macro:

READ
Read Buffer.

HDEV
Deactivate the channel program for the specified SDA pair.

PRIME
Prime the specified SDA.

RELCC
Release the multiple system request block (MSRB).

CCW
Process the user-defined channel program (CCW). CCWs must be Format 1.
Note:
This option requires processing of a WAITC macro to very the results, and is therefore restricted to E-type programs.

TIMEOUT
Timeout value for SENSE ID channel program. 0 is the default value. This parameter must be 0 unless the TYPE parameter is coded as CCW.

CLEANUP
Specify one of the following:

YES
Clean-up all resources associated with a path.

NO
No cleanup requested.

NO is the default option. YES is only valid when the TYPE parameter is coded as HDEV.

Entry Requirements

Return Conditions

Programming Considerations

Examples

None.