Demonstration Utilities
•Slot state flags
If the slot is not empty, the following fields are also present:
•Vendor ID
•Device ID
•Subsystem vendor ID
•Subsystem ID
•Revision ID
•Class, subclass, programming interface
•Header type
•
10.1.4.3Slot State
When the slot information structure is filled in as a result of a call, the HsStateFlags field contains a set of flags representing the current state of the slot. The following flags are defined:
Table 5. Slot State Flags
Flags | Meanings |
|
|
HS_STATE_DEVICE_PRESENT | A device is present in the slot |
|
|
HS_STATE_SW_CONNECTED | A device is present in the slot and software connected |
|
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HS_STATE_EXTRACTION_PENDING | Extraction request pending for the device in the slot |
|
|
HS_STATE_READY_FOR_EXTRACTION | Device is ready for extraction, the blue LED is lit |
|
|
10.1.5Slot Control Interface
Slot control capability is defined in the Redundant Host System Model, where the capabilities of the system are extended to allow software control of a board’s hardware connection state.
The system software adds drivers and services for this greater degree of control. This allows software to electrically isolate the board from the system until an operator is available to do so physically.
•Slot control enables:
•Capability to perform reset on the board
•Change the board’s power state to ON
•Checks the presence and health of the board
High Availability Software for the Intel® NetStructureTM ZT 4901 Technical Product Specification | 101 |
