AM3270 Management Programming Manual

COMMON DEFINITIONS
SPI Standard Definitions
ZSPI-TKN-SSID specifies the subsystem ID. This token is required
in both the command and the response. The SSINIT procedure
initializes the command buffer with this token using the value
defined in the subsystem's DDL file. The value used for AM3270
is ZAM3-VAL-SSID. ZAM3-VAL-SSID has the following structure
definition:
def ZAM3-VAL-SSID tacl ssid.
02 Z-FILLER type character 8
value is ZSPI-VAL-TANDEM.
02 Z-OWNER redefines Z-FILLER
type ZSPI-DDL-CHAR8.
02 Z-NUM type ZSPI-DDL-INT
value is ZSPI-SSN-ZAM3.
02 Z-VSN type ZSPI-DDL-UINT
value is ZAM3-VAL-VERSION.
end.
ZSPI-TKN-USEDLEN specifies the length of the used portion of the
command message. The value of this token is used to verify that
the entire message has been read by the server. The value is
compared to the count-read value supplied by the file-system. If
the value of the ZSPI-TKN-USEDLEN is greater than the count-read
value, then the AM3270 subsystem rejects the command because the
command length was too long.
ZSPI-VAL-TANDEM indicates that the destination subsystem is on a
Tandem system. The requester must assign this value to the owner
field of the ZSPI-TKN-SSID token before sending a command to a
Tandem system.
5-8