System, Apparatus And Method For Synchronizing Multiple Virtual Link States Over A Package Interconnect

Abrégé

In one embodiment, an apparatus includes an arbitration circuit with virtual link state machines to virtualize link states associated with multiple communication protocol stacks. The apparatus further includes a physical circuit coupled to the arbitration circuit and to interface with a physical link, where the physical circuit, in response to a retraining of the physical link, is to cause a plurality of the virtual link state machines to synchronize with corresponding virtual link state machines associated with a second side of the physical link, and where at least one of the communication protocol stacks is to remain in a low power state during the retraining and the synchronization. Other embodiments are described and claimed.

Classes IPC  ?

• G06F 13/16 - Handling requests for interconnection or transfer for access to memory bus
• G06F 13/40 - Bus structure
• G06F 13/42 - Bus transfer protocol, e.g. handshake; Synchronisation