The return code specifies the general result of the callable service. See Appendix A. ICSF and TSS Return and Reason Codes, for a list of return codes.

The reason code specifies the result of the callable service that is returned to the application program. Each return code has different reason codes that indicate specific processing problems. See Appendix A. ICSF and TSS Return and Reason Codes for a list of reason codes.

The length of the data that is passed to the installation exit. The length can be from X'00000000' to X'7FFFFFFF' (2 gigabytes). The data is identified in the exit_data parameter.

The data that is passed to the installation exit.

The number of keywords you are supplying in rule_array. The value must be 1.

Keyword that provides control information to callable services. The keyword is left-justified in an 8-byte field and padded on the right with blanks. The keyword must be in contiguous storage. These keywords are mutually exclusive:

The PCICC, PCIXCC, CEX2C, or CEX3C card to which this request is directed. Valid values are between 0 and 64.

The PCICC, PCIXCC, CEX2C, or CEX3C card serial number to which the request is directed. This parameter may be used instead of the target_pci_coprocessor. The length is 8 bytes. This parameter is updated with the serial number of the card if the request was successfully processed.

Length of CPRB and the request block in the request_block field. The maximum length allowed is 5,500 bytes.

PCICC, PCIXCC, CEX2C, or CEX3C command or query request for the target PCICC, PCIXCC, CEX2C, or CEX3C. This is the complete CPRB and request block to be processed by the PCICC, PCIXCC, CEX2C, or CEX3C.

Length of request data block in the request_data_block field. The maximum length allowed is 6,400 bytes. The length field must be a multiple of 4.

The data that accompanies the request_block field.

Length of CPRB and the reply block in the reply_block field. The maximum length allowed is 5,500 bytes. This field is updated on output with the actual length of the reply_block field.

Reply from the target PCICC, PCIXCC, CEX2C, or CEX3C. This is the CPRB and reply block that has been processed by the PCICC, PCIXCC, CEX2C, or CEX3C.

Length of reply block in the reply_data_block field. The maximum length allowed is 6,400 bytes. This field is updated on output with the actual length of the reply_data_block field. This length field must be a multiple of 4. For the ACPOINTS keyword, the minimum length is 2572 bytes.

The data that accompanies the reply_block field.

Length of the reply data being returned in the masks_data field. The length must be 32 bytes. This field is only valid when the input rule_array keyword is PCIMASKS, ACTIVECP XCPMASK, CX2MASK, CX3MASK. For all other rule_array keywords, this field is ignored.

The data being returned for all requests. The first 8 bytes indicate the count of the PCI cards online. The second 8 bytes indicate a bit mask of the actual PCI cards brought online. The third 8 bytes indicate the count of the PCI cards active. The fourth 8 bytes indicate a bit mask of the actual PCI cards that are active. For the ACTIVECP keyword, if the PCI card initialization failed, the appropriate return code and reason code is issued and the masks_data field will contain zeros.