Programmable logic device configuration over communication fabrics

Patent metadata

Field	Value
Publication number	US-12222890-B2
Application number	US-202217846305-A
Country	US
Kind code	B2
Filing date	Jun 22, 2022
Priority date	Feb 1, 2019
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

A method of programming a fabric-coupled FPGA device includes instructing a communication fabric to establish a first logical partition segregating a first set of communication switch ports within the communication fabric that includes the management processor and a target device comprising a memory device configured to program a field-programmable gate array (FPGA). The method includes directing configuration data configured to program the FPGA to the target device over the first logical partition. The method includes instructing the communication fabric to remove the first logical partition in the communication fabric, wherein the configuration data remains stored at the target device after removal of the first logical partition. The method includes instructing the communication fabric to establish a second logical partition segregating a second set of communication switch ports within the communication fabric that includes a selected device and the target device that stores the configuration data.

First claim

What is claimed is:

1. A computing apparatus comprising:
one or more computer readable storage media;
program instructions stored on the one or more computer readable storage media, that based at least in part on execution by a management processor, direct the management processor to at least:
instruct a communication fabric to establish a first logical partition segregating a first set of communication switch ports within the communication fabric that includes the management processor and a target device comprising a memory device configured to program a field-programmable gate array (FPGA);
direct configuration data configured to program the FPGA to the target device over the first logical partition;
after transfer of the configuration data, instruct the communication fabric to remove the first logical partition in the communication fabric, wherein the configuration data remains stored at the target device after removal of the first logical partition; and
instruct the communication fabric to establish a second logical partition segregating a second set of communication switch ports within the communication fabric that includes at least a selected device and the target device that stores the configuration data.

2. The computing apparatus of claim 1 , wherein the selected device comprises a central processing unit (CPU), a data storage device, or a network interface element.

3. The computing apparatus of claim 1 , wherein the configuration data comprises a programming bitstream to program the FPGA into a programmed state, and wherein the programmed state comprises a target programmed state of programmable logic elements of the FPGA.

4. The computing apparatus of claim 1 , wherein the target device further comprises the FPGA.

5. The computing apparatus of claim 1 , wherein the management processor comprises a first Peripheral Component Interconnect Express (PCIe) root complex; and
wherein the selected device comprises a second PCIe root complex different that the first PCIe root complex.

6. The computing apparatus of claim 1 , wherein after the configuration data remains stored at the target device, the configuration data programs the FPGA into a programmed state responsive to a power cycling of at least the FPGA.

7. The computing apparatus of claim 1 , comprising further program instructions stored on the one or more computer readable storage media, that based at least in part on execution by the management processor, direct the management processor to at least:
receive a user command to establish a compute unit comprising the selected device and the FPGA, wherein the user command indicates the configuration data is to be deployed for the FPGA; and
establish the compute unit comprising at least the selected device and the target device.

8. The computing apparatus of claim 1 , wherein removal of the first logical partition in the communication fabric comprises de-establishing the first logical partition and placing the target device back into a pool of free devices while the configuration data remains stored at the target device while in the pool.

9. A method comprising:
instructing, by a management processor, a communication fabric to establish a first logical partition segregating a first set of communication switch ports within the communication fabric that includes the management processor and a target device comprising a memory device configured to program a field-programmable gate array (FPGA);
directing configuration data configured to program the FPGA to the target device over the first logical partition;
after transfer of the configuration data, instructing, by the management processor, the communication fabric to remove the first logical partition in the communication fabric, wherein the configuration data remains stored at the target device after removal of the first logical partition; and
instructing, by the management processor, the communication fabric to establish a second logical partition segregating a second set of communication switch ports within the communication fabric that includes at least a selected device and the target device configured according to the configuration data.

10. The method of claim 9 , wherein the selected device comprises one among a central processing unit (CPU), a data storage device, and a network interface element.

11. The method of claim 9 , wherein the configuration data comprises a programming bitstream to program the FPGA into a programmed state, and wherein the programmed state comprises a target programmed state of programmable logic elements of the FPGA.

12. The method of claim 9 , wherein the target device further comprises the FPGA.

13. The method of claim 9 , wherein the management processor comprises a first Peripheral Component Interconnect Express (PCIe) root complex; and
wherein the selected device comprises a second PCIe root complex different that the first PCIe root complex.

14. The method of claim 9 , wherein after the configuration data remains stored at the target device, the configuration data programs the FPGA into a programmed state responsive to a power cycling of at least the FPGA.

15. The method of claim 9 , comprising:
receiving a user command to establish a compute unit comprising the selected device and the FPGA, wherein the user command indicates the configuration data is to be deployed for the FPGA; and
establish the compute unit comprising at least the selected device and the target device.

16. The method of claim 9 , wherein removal of the first logical partition in the PCIe fabric comprises de-establishing the first logical partition and placing the target device back into a pool of free devices while the configuration data remains stored at the target device while in the pool.

17. A computing apparatus comprising:
a management processor configured to:
receive user commands to establish a compute unit among a plurality of physical computing components coupled by a communication fabric, wherein the user command identifies configuration data stored in a storage device accessible to the management processor; and
establish the compute unit by:
instructing the communication fabric to establish a first partition segregating a first set of communication switch ports within the communication fabric to include the management processor and a target device comprising a memory device configured to program a field-programmable gate array (FPGA);
directing at least the configuration data to the target device using the first partition;
after transfer of the configuration data over the first partition, instructing the communication fabric to de-establish the first partition including the management controller and the target device, wherein the configuration data remains stored at the target device after de-establishment of the first partition; and
instructing the communication fabric to establish a second partition segregating a second set of communication switch ports within the communication fabric including a selected device and the target device, the second partition within the communication fabric configured such that the selected device has visibility over the communication fabric to the target device that stores the configuration data.

18. The computing apparatus of claim 17 , wherein the selected device comprises a central processing unit (CPU), and wherein the configuration data comprises a programming bitstream to program the FPGA into the programming state comprising a target programmed state of programmable logic elements of the FPGA.

19.

Assignees

• Liqid Inc

Inventors

• Cannata James Scott
• Long Christopher R
• Clark Phillip
• Puri Sumit

Classifications

• G06F9/4411

  Configuring for operating with peripheral devices; Loading of device drivers · CPC title

• G06F2213/0026

  PCI express · CPC title

• G06F13/4282 Primary

  on a serial bus, e.g. I2C bus, SPI bus (on daisy chain buses G06F13/4247) · CPC title