Environment

The caller (issuer of the IEFSSREQ macro) must include the following mapping macros:

Data areas commonly referenced are mapped by the following mapping macros:

The caller must meet the following requirements:

Caller variable	Caller value
Minimum Authorization	Problem state, any PSW key
Dispatchable unit mode	Task
AMODE	24-bit or 31-bit
Cross memory mode	PASN=HASN=SASN
ASC mode	Primary
Interrupt status	Enabled for I/O and external interrupts
Locks	No locks held
Control Parameters	The SSOB, SSIB, IAZSSJP, and IAZJPSPL, control blocks can be in 24- or 31-bit virtual storage
Recovery	The caller should provide an ESTAE-type recovery environment. See z/OS MVS Programming: Assembler Services Guide for more information about an ESTAE-type recovery environment.

Figure 1 shows the environment at the time of the call for SSI function code 82, SPOOL Volume Information Subfunction.

Figure 1. Environment at Time of Call for SSI Function Code 82, SPOOL Volume Information Subfunction