Intel Corporation

Maxim Dan

David J Harriman

Prashant Sethi

Robert E Gough

Reuven Rozic

Shanthanand Kutuva Rabindranath

Poh Thiam Teoh

Hooi Kar Loo

Shashitheren Kerisnan

Chee Siang Chow

Christopher Wing Hong Ngau

A flattening portal bridge (FPB) is provided to support addressing according to a first addressing scheme and a second, alternative addressing scheme. The FPB comprises a primary side and a secondary side, the primary side connects to a first set of devices addressed according to a first addressing scheme, and the secondary side connects to a second set of devices addressed according to a second addressing scheme. The first addressing scheme uses a unique bus number within a Bus/Device/Function (BDF) address space for each device in the first set of devices, and the second bus addressing scheme uses a unique bus-device number for each device in the second set of devices.

Flattening portal bridge

Aspects of the embodiments are directed to systems, methods, and devices for controlling power management entry. A PCIe root port controller can be configured to receive, at a downstream port of the root port controller, from an upstream switch port, a first power management entry request; reject the first power management entry request; transmit a negative acknowledgement message to the upstream switch port; initiate a timer for at least 20 microseconds; during the 20 microseconds, ignore any power management entry requests received from the upstream switch port; receive, after the expiration of the 20 microseconds, a subsequent power management entry request; accept the subsequent power management entry request; and transmit an acknowledgement of the acceptance of the subsequent power management entry request to the upstream switch port.

Timer control for peripheral component interconnect express components implemented with thunderbolt controllers

Described are embodiments of methods, apparatuses, and systems for PCIe tunneling across a multi-protocol I/O interconnect of a computer apparatus. A method for PCIe tunneling across the multi-protocol I/O interconnect may include establishing a first communication path between ports of a switching fabric of a multi-protocol I/O interconnect of a computer apparatus in response to a peripheral component interconnect express (PCIe) device being connected to the computer apparatus, and establishing a second communication path between the switching fabric and a PCIe controller. The method may further include routing, by the multi-protocol I/O interconnect, PCIe protocol packets of the PCIe device from the PCIe device to the PCIe controller over the first and second communication paths. Other embodiments may be described and claimed.

PCI express tunneling over a multi-protocol I/O interconnect

Growing community of inventors

Haifa, Israel

Maxim Dan