Installation guide

68 DC 900-1564A
Synchronous Link Control (SLC) Programmer’s Guide
5.6 Get Buffer Report (Master, Reader, or Control Access Mode)
Table 5–9 is the DLI_PROT_GET_BUF_REPORT header format. See Section 4.4.1 on page 46
for a functional description and the report format associated with the response.
a
Requirements for non-DLI calls: ICP Header fields must be in network byte-order, Protocol
Header fields must be in client byte order, and the ICP Header
usICPCount field is required.
Table 5–9: DLI_PROT_GET_BUF_REPORT Header Format
Field Command Value (Write) Response Value (Read)
Freeway Header (network byte-order; used in DLI calls only):
usFWPacketType = FW_DATA = FW_DATA
usFWCommand = FW_ICP_WRITE = FW_ICP_READ
usFWStatus = 0 = 0
ICP Header
a
usICPClientID = 0 = 0
usICPServerID = 0 = 0
a
usICPCount = 16 (non-DLI calls only) = 16 + data size (non-DLI calls only)
usICPCommand = DLI_ICP_CMD_WRITE = DLI_ICP_CMD_READ
iICPStatus = Client memory order
(Table 5–2 on page 61)
= DLI_ICP_CMD_STATUS_OK or
negative error code (slc_errs.h file)
usICPParms[0] = 0 = ICP return node from Attach cmd
usICPParms[1] = 0 = 0
usICPParms[2] = 0 = 0
Protocol Header
a
usProtCommand = DLI_PROT_GET_BUF_REPORT = DLI_PROT_GET_BUF_REPORT
iProtModifier = 0 = 0
usProtLinkID = Link number = Link number
usProtCircuitID = 0 = 0
usProtSessionID = Session ID from Attach response = Session ID from Attach response
usProtSequence = 0 = 0
usProtXParms[0] = 0 = 0
usProtXParms[1] = 0 = 0