Intel Corporation

Yuvraj S Dhillon

Robert H Beers

Debendra Das Sharma

Robert G Blankenship

Venkatraman Iyer

Arvind A Kumar

Raj K Ramanujan

Yen-Cheng Liu

Simon P Johnson

Robert J Safranek

Herbert H Hum

Darren S Jue

Ashish Gupta

Vedaraman Geetha

Bahaa Fahim

Jeffrey Charles Swanson

Aaron T Spink

Fulvio Spagna

Rahul R Shah

Jeff Willey

Sitaraman V Iyer

William Harry Nale

Abhishek Das

Robert A Maddox

A physical layer (PHY) is coupled to a serial, differential link that is to include a number of lanes. The PHY includes a transmitter and a receiver to be coupled to each lane of the number of lanes. The transmitter coupled to each lane is configured to embed a clock with data to be transmitted over the lane, and the PHY periodically issues a blocking link state (BLS) request to cause an agent to enter a BLS to hold off link layer flit transmission for a duration. The PHY utilizes the serial, differential link during the duration for a PHY associated task selected from a group including an in-band reset, an entry into low power state, and an entry into partial width state.

High performance interconnect

An agent is provided to include state table storage to hold a set of state tables to represent a plurality of coherence protocol actions, where the set of state tables is to include at least one nested state table. The agent further includes protocol logic associated with the state table storage, the protocol logic to receive a coherence protocol message, and determine a coherence protocol action of the plurality of coherence protocol actions from the set of state tables based at least in part on the coherence protocol message.

Coherence protocol tables

A physical layer (PHY) is coupled to a serial, differential link that is to include a number of lanes. The PHY includes a transmitter and a receiver to be coupled to each lane of the number of lanes. The transmitter coupled to each lane is configured to embed a clock with data to be transmitted over the lane, and the PHY periodically issues a blocking link state (BLS) request to cause an agent to enter a BLS to hold off link layer flit transmission for a duration. The PHY utilizes the serial, differential link during the duration for a PHY associated task selected from a group including an in-band reset, an entry into low power state, and an entry into partial width state

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Hillsboro, OR, United States of America

Yuvraj S Dhillon