DLPI Primitives
Local Management Primitives
The message consists one M_PROTO message block containing the structure shown below.
typedef struct { |
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ulong | dl_primitive; |
ulong | dl_addr_type; |
} dl_phys_addr_req_t; |
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Parameters |
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dl_primitive |
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DL_PHYS_ADDR_REQ dl_addr_type
type of address requested - factory physical address or current physical address
DL_FACT_PHYS_ADDR
DL_CURR_PHYS_ADDR
State
The message is valid in any attached state in which a local acknowledgement is not pending. For a style 2 provider, this would be after a PPA is attached using the DL_ATTACH_REQ. For a style 1 provider, the PPA is implicitly attached after the stream is opened.
New State
The resulting state is unchanged.
Response
The provider responds to the request with a DL_PHYS_ADDR_ACK if the request is supported. Otherwise, a DL_ERROR_ACK is returned.
Reasons for Failure
DL_NOTSUPPORTED
The primitive is known, but not supported by the DLS provider.
DL_OUTSTATE
The primitive was issued from an invalid state.
Chapter 2 | 79 |
