Xilinx, Inc.

Ellery Cochell

Ravi Nagarajarao Kurlagunda

Chandrasekhar S Thyamagondlu

Brian S Martin

Ravi S Sunkavalli

Kieran Mansley

Soren T Soe

Ripduman Sohan

Idris I Tarwala

Techniques and apparatus for dynamically modifying a kernel (and associated user-specified circuitry) for a dynamic region of a programmable integrated circuit (IC) without affecting (e.g., while allowing) operation of other kernels ((and other associated user-specified circuitry) in the programmable IC. Dynamically modifying a kernel may include, for example, unloading an existing kernel, loading a new kernel, or replacing a first kernel with a second kernel). In the case of networking (e.g., in a data center application) where the programmable IC may be part of a hardware acceleration card (e.g., a network interface card (NIC)), the kernel may be user code referred to as a 'plugin.'

Method for supporting multiple concurrent plugins in a programmable integrated circuit

Secure updating of programmable integrated circuits includes receiving, within the programmable integrated circuit, a configuration bitstream, inserting, using a processor of the programmable integrated circuit, a key into the configuration bitstream resulting in a modified configuration bitstream, encrypting, using the programmable integrated circuit, the modified configuration bitstream using the key resulting in an encrypted configuration bitstream, and storing the encrypted configuration bitstream in a boot memory for the programmable integrated circuit.

Secure update of programmable integrated circuits in data center computing environments

Bootstrapping a programmable integrated circuit (IC) based network interface card (NIC) can include implementing, within the programmable IC, a first circuitry by loading a first stage configuration bitstream, wherein the first circuitry includes a bus endpoint configured to communicate with a host computer via a communication bus, a platform processor, and a first bootloader. The platform processor, executing the first bootloader, loads a first firmware within the programmable IC. A second circuitry is implemented within the programmable IC by the platform processor executing the first firmware to load a second stage configuration bitstream. The second circuitry includes a NIC controller. The platform processor, executing the first firmware, loads a second firmware within the programmable IC. The second firmware is executable to configure the second circuitry.

Bootstrapping a programmable integrated circuit based network interface card

A device includes a platform implemented, at least in part, in a static region of programmable circuitry and a dynamic region of programmable circuitry configured to implement user-specified circuitry in communication with the platform. The platform is configured to establish and maintain a first communication link with a host data processing system and a second communication link with a network while at least a portion of the dynamic region of programmable circuitry is dynamically reconfigured.

Dynamically reconfigurable networking using a programmable integrated circuit

An integrated circuit (IC) can include a command queue having a plurality of slots corresponding to commands from a host processor for execution by a plurality of compute units of the IC and a command request register having a plurality of locations corresponding to the plurality of slots in the command queue. The command request register is configured to generate an interrupt indicating a new command stored within the command queue. The IC can include a controller configured to, in response to the interrupt from the command request register, determine a selected compute unit that is idle from the plurality of compute units to execute the new command. The IC can also include a compute unit direct memory access circuit configured to provide the new command to the available compute unit.

Growing community of inventors

Sunnyvale, CA, United States of America

Ellery Cochell