{}
{  The purpose of this request is to complete the initialization of
{ the request block information, allocate the necessary areas in wired
{ memory, and set up those areas with the tables required to interface
{ to the PP.  Those tables include the portion of the request block
{ presented to the PP, the response buffer, the various block
{ descriptors, etc.  This procedure makes the monitor call to
{ iop$tape_queue_request.
{}
{       IOP$TAPE_QUEUE_REQUEST_SETUP (TAPE_REQUEST_P, STATUS)
{}
{ TAPE_REQUEST_P: (input) This parameter specifies the address of the
{       request block that exists in mainframe_pageable_heap.
{}
{ STATUS: (output) This parameter specifies the request status.
{       condition:
{               ioc$outstanding_io
{               ioc$tape_pp_q_locked
{               ioc$os_failure
{       identifier: ioc$physical_io
{}
