Nxp Usa, Inc.

Alexandru Marginean

Prabhjot Singh

Mohit Satsangi

David W Todd

Tommi Jorma Mikael Jokinen

Robert Freddie Linn-Moran

Amit Rao

David Schuchmann

Nutan Kishor Shivhare

Facilitating access to a PCIe configuration space of a PCIe function associated with a computer comprises receiving by a PCIe controller EP in the computer over a PCIe link a configuration request from a remote computer to access a PCIe configuration space. The PCIe controller then communicates over a communication fabric the configuration request to a dispatcher of the computer. The dispatcher determines from the configuration request, a PCIe function and operation indicated in the configuration request which is used to identify a respective subsystem to execute the configuration request and the configuration request is communicated to the respective subsystem based on the identification. The subsystem then executes the configuration request to facilitate access to the PCIe configuration space of the PCIe function by the remote computer and sharing of the PCIe function with the remote computer.

System and method to facilitate access by a remote computer to a PCIe configuration space

A host data processing system method, apparatus, and architecture are provided for sharing a PCIe EP device with one or more lendee data processing systems in a PCIe cluster by extracting an RID value from a received PCIe transaction message corresponding to a PCIe function at the PCIe endpoint device, and then processing the RID value to identify an interconnect target port value which corresponds to a first lendee data processing system which is sharing the PCIe endpoint device, and then routing the PCIe transaction message through an interconnect on the host data processing system using an interconnect target output port corresponding to the first interconnect target port value to deliver the PCIe transaction message to the first lendee data processing system.

ID-based transaction routing for PCIe endpoint lending

Growing community of inventors

Meilen, Switzerland

Alexandru Marginean