Method, System, and Apparatus for System Level Initialization

A method for link layer for component or system initialization comprising:

• initializing a physical layer to permit electrical transfer of information between a first and second agent;
• performing a link layer initialization for the first and second agent by exchanging a plurality of control flits for link layer control messages and initialization;
• and
• transmitting one or more control flits to initialize a component that adheres to a pTp architecture from an IO agent to a CPU.

A method for a link layer for component or system initialization comprising:

• initializing a physical layer to permit electrical transfer of information between a first and second agent;
• performing a link layer initialization for the first and second agent by exchanging a plurality of control flits for link layer control messages and initialization;
• and
• transmitting one or more control flits to initialize a component that adheres to a pTp architecture from an IO agent to a CPU.

A system that adheres to a pTp architecture and facilitates initialization comprising:

• A plurality of processor agents and memory agents coupled to a network fabric a physical layer that is initialized to permit electrical transfer of information between a first and second agent of either the plurality of processor agents or memory agents, coupled to the network fabric;
• a link layer initialization that is initialized for the first and second agent by exchanging a plurality of control flits for link layer control messages and initialization;
• and
• the physical layer to transmit one or more control flits to initialize a component that adheres to the pTp architecture.