Communication in multiprocessor using proxy sockets

• US 8,650,302 B2
• Filed: 09/14/2011
• Issued: 02/11/2014
• Est. Priority Date: 05/27/2004
• Status: Active Grant

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Shin, George, Brame, Richard, Jacobson, Michael
• Primary Examiner(s): NGUYEN, MINH CHAU
• Application Number:
  US13/232,379
• Publication Number:
  US 20120005349A1
• Time in Patent Office: 881 Days
• Field of Search: 709/226
• US Class Current: 709/226
• CPC Class Codes: G06F 11/2089 Redundant storage control functionality
• CPC Class Codes: G06F 9/5011 the resources being hardware resources other than CPUs, Servers and Terminals

Abstract

Systems and methods for implementing communication in a multiprocessor are disclosed. In one exemplary implementation a first processor receives a request to provide a communication resource for an application executing on the first processor to communicate with a remote application. In response to the communication request, the first processor opens a communication resource on a second processor, and manages communication operations between the application executing on the first processor and the remote application using the communication resource on the second processor.

Claims

1. A method of computing, comprising:

receiving, at a first processor, a request to open a communication resource for communicating with a device external to the first processor, wherein the request includes a proxy flag that identifies a first communication resource managed by the first processor or a second communication resource managed by a second processor;

demultiplexer module operable at the first processor for managing inter-processor communication between the first processor and the second processor, for selecting one of the first communication resource or the second communication resource based on information contained in the proxy flag; and

mapping the request to a selected communication resource.

2. The method of claim 1, wherein mapping the request to the selected communication resource comprises instantiating a first data table that includes a pointer to an entry point for communication operations with the selected communication resource.

3. The method of claim 2, further comprising setting, in the first data table, a data field that indicates the value of the proxy flag.

4. The method of claim 3, further comprising opening the selected communication resource.

5. The method of claim 4, further comprising returning a descriptor the selected communication resource.

6. The method of claim 5, further comprising:

receiving a communication request for further communication operations, wherein the communication request identifies the selected communication resource; and

sending the communication request to the selected communication resource.

7. The method of claim 1, wherein selecting one of the first communication resource or the second communication resource based on information contained in the proxy flag further comprises determining whether at least one of the first communication resource or the second resource is accepting communication requests.

8. The method of claim 1, wherein the proxy flag is received in a shared memory function call parameter.

9. A multiprocessor computer system, comprising:

a first computer processor operable to manage a first communication resource;

a second computer processor operable to manage a second communication resource and to communicate with the first computer processor; and

a demultiplexer device operable at the first computer processor to manage inter-processor communication between the first computer processor and the second computer processor, to receive a request to open a communication resource for communicating with a device external to the first computer processor, wherein the request includes a proxy flag that identities a first communication resource managed by the first computer processor or a second communication resource managed by the second computer processor;

to select one of the first communication resource or the second communication resource based on information contained in the proxy flag; and

to map the request to a selected communication resource.

10. The computer system of claim 9, wherein mapping the request to the selected communication resource comprises instantiating a first data table that includes a pointer to an entry point for communication operations with the selected communication resource.

11. The computer system of claim 10, wherein the demultiplexer module device is further adapted to set, in the first data table, a data field that indicates the value of the proxy flag.

12. The computer system of claim 11, wherein the demultiplexer module device is further adapted to open the selected communication resource.

13. The computer system of claim 10, wherein the demultiplexer module device is further adapted to return a descriptor for the selected communication resource.

14. The computer system of claim 13, wherein the demultiplexer module device is further adapted to receive a communication request for further communication operations, wherein the communication request identifies the selected communication resource;

and to send the communication request to the selected communication resource.

15. The computer system of claim 9, wherein selecting one of the first communication resource or the second communication resource based on information contained in the proxy flag further comprises determining whether at least one of the first communication resource or the second resource is accepting communication requests.

16. The computer system of claim 9, wherein the proxy flag is received in a shared memory function call parameter.

17. A non-transitory machine-readable medium that stores machine-readable instructions executable by a first processor to perform multiprocessor communication, the non-transitory machine-readable medium comprising:

machine-readable instructions that, when executed by the first processor, receive, at the first processor, a request to open a communication resource for communicating with a device external to the first processor, wherein the request includes a proxy flag that identifies a first communication resource managed by the first processor or a second communication resource managed by a second processor;

machine-readable instructions that, when executed by the first processor, to have a demultiplexer module operable at the first processor to managed inter-processor communication between the first processor and the second processor and select one of the first communication resource or the second communication resource based on information contained in the proxy flag; and

machine-readable instructions that, when executed by the first processor, map the request to is selected communication resource.

18. The non-transitory machine-readable medium of claim 17, wherein the machine-readable instructions that, when executed by the first processor, select one of the first communication resource or the second communication resource based on information contained in the proxy flag comprise machine-readable instructions that, when executed by the first processor, determine whether at least one of the first communication resource or the second resource is accepting communication requests.

19. The non-transitory machine-readable medium of claim 17, wherein the proxy flag is received in a shared memory function call parameter.

20. The non-transitory machine-readable medium of claim 17, wherein the machine-readable instructions that, when executed by the first processor, map the request to the selected communication resource comprise machine-readable instructions that, when executed by the first processor, instantiate a first data table that includes a pointer to an entry point for communication operations with the selected communication resource.