System, device and method for media data offload processing

• US 20040073716A1
• Filed: 10/14/2002
• Published: 04/15/2004
• Est. Priority Date: 10/14/2002
• Status: Abandoned Application

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Dubal, Scott P., Boom, Douglas D., Montecalvo, Mark V., Connor, Patrick L.
• Application Number:
  US10/270,703
• Publication Number:
  US 20040073716A1
• Time in Patent Office: Days
• US Class Current: 709/250
• CPC Class Codes: H04L 69/12 Protocol engines

Abstract

Described are a system and method of forwarding data packets from a network interface controller (NIC) to one or more media decoding devices. The NIC may comprise an I/O interface to transmit to communicate with either a host processing system and the one or more media decoding devices. Data packets received at the NIC may be forwarded to the one or more media decoding devices independently of the host processing system.

Claims

1. A system comprising:

a host processing system;

one or more media decoding devices; and

a network interface controller, the network interface controller comprising;

a network interface to receive data packets from a data transmission medium;

an I/O interface to communicate with the host processing system and the one or more media decoding devices; and

a forwarding engine to forward media data in received data packets to the one or more media decoding devices independently of the host processing system.

2. The system of claim 1, wherein the system further comprises a switch comprising a plurality of ports, at least one port being coupled to the I/O interface and at least one port being coupled to the one or more media decoding devices.

3. The system of claim 1, wherein the network interface controller further comprises a physical layer device coupled to the network interface to receive the data packets from a twisted wire pair transmission medium.

4. The system of claim 1, wherein the network interface controller further comprises a physical layer device coupled to the network interface to receive the data packets from an optical transmission medium.

5. The system of claim 1, wherein the network interface controller further comprises a physical layer device coupled to the network interface to receive the data packets from a wireless transmission medium.

6. A network interface controller comprising:

a network interface to receive data packets from a data transmission medium;

a forwarding engine to;

receive from a host processing system session information associated with a media event; and

forward media data in data packets associated with the session information to a destination media decoding device independently of the host processing system.

7. The network interface controller of claim 6, wherein the data forwarding engine further comprises logic to associate a received data packet with the destination media decoding device from among a plurality of media decoding devices based upon the session information.

8. The network interface controller of claim 7, wherein the network interface controller further comprises logic to initiate a direct memory access transaction to forward media data to the destination media decoding device.

9. The network interface controller of claim 6, wherein the network interface controller comprises logic to decrypt at least a portion of media data in data packets associated with the session information.

10. The network interface controller of claim 6, wherein the data forwarding engine further comprises:

logic to associate a plurality of data packets with a destination media decoding device based upon the session information;

logic to combine media data portions of the plurality of data packets into a data structure; and

logic to forward the data structure to the destination media decoding device independently of the host processing system.

11. The network interface controller of claim 6, wherein the forwarding engine further comprises logic to associate the received data packets with the media event based upon a comparison of at least a portion of the session information with a portion of information in the received data packets.

12. The network interface controller of claim 11, wherein the portion of information in the received data packets comprises a session identifier.

13. The network interface controller of claim 11, wherein the portion of information in the received data packets comprises a TCP/IP header.

14. A method comprising:

detecting a media event; and

transmitting session information associated with the media event to a network interface controller, the session information associating at least some data packets received at the network interface controller with one or more destination media decoding devices.

15. The method of claim 14, the method further comprising:

associating the media event with one or more media encoding formats; and

detecting the presence of one or more media decoding devices capable of processing media data encoded in the one or more media encoding formats.

16. The method of claim 14, wherein the session information comprises information to associate media data in received data packets with an address of a destination media decoding device.

17. The method of claim 14, the method further comprising transmitting output information to at least one of the destination media decoding device, the output information identifying a media encoding format associated with media data in data packets to be forwarded to the destination media decoding device.

18. An article comprising:

a storage medium comprising machine-readable instructions stored thereon to;

detect a media event; and

initiate transmission of session information associated with the media event to a network interface controller, the session information associating at least some data packets received at the network interface controller with one or more destination media decoding devices.

19. The article of claim 18, wherein the storage medium further comprises machine-readable instructions stored thereon to:

associate the media event with one or more media encoding formats; and

detect the presence of one or more media decoding devices capable of processing media data encoded in the one or more media encoding formats.

20. The article of claim 18, wherein the session information comprises information to associate media data in received data packets with an address of a destination media decoding device.

21. The article of claim 18, wherein the storage medium further comprises machine-readable instructions stored thereon to initiate transmission of output information to at least one of the destination media decoding device, the output information identifying a media encoding format associated with media data in data packets to be forwarded to the destination media decoding device.

22. A method comprising:

receiving session information from a host processing system;

receiving data packets from a transmission medium;

associating at least some of the received data packets with the session information; and

forwarding portions of the associated data packets to one or more destination media decoding devices independently of the host processing system.

23. The method of claim 22, the method further comprising decrypting the portions of the associated data packets prior to forwarding to the one or more destination media decoding devices.

24. The method of claim 22, the method further comprising associating the at least some of the received data packets with the session information based, at least in part, TCP/IP information in the received data packets.

25. The method of claim 22, wherein the data forwarding engine further comprises logic to associate a received data packet with the destination media decoding device from among a plurality of media decoding devices based upon the session information.

26. The method of claim 22, wherein forwarding a portion of a received data packet associated with a destination media decoding device further comprises initiating a direct memory access transaction to forward media data in the received data packet to the destination media decoding device.

27. The method of claim 22, the method further comprising:

associating a plurality of received data packets with a destination media decoding device based upon the session information;

combining media data portions of the plurality of data packets into a data structure; and

forwarding the data structure to the destination media decoding device independently of the host processing system.

28. An article comprising:

a storage medium comprising machine-readable instructions stored thereon to;

receive session information from a host processing system;

associate at least some received data packets with the session information; and

initiate forwarding portions of the associated data packets to one or more destination media decoding devices independently of the host processing system.

29. The article of claim 28, wherein the storage medium further comprises machine-readable instructions stored thereon to decrypt the portions of the associated data packets.

30. The article of claim 28, wherein the storage medium further comprises machine-readable instructions stored thereon to associate the at least some of the received data packets with the session information based on, at least in part, TCP/IP information in the received data packets.

31. The article of claim 28, wherein the storage medium further comprises machine-readable instructions stored thereon to associate a received data packet with a destination media decoding device from among a plurality of media decoding devices based upon the session information.

32. The article of claim 31, wherein storage medium further comprises machine-readable instructions stored thereon to initiate a direct memory access transaction to forward media data in the received data packet to the destination media decoding device.

33. The article of claim 28, wherein the storage medium further comprises machine-readable instructions stored thereon to:

associate a plurality of received data packets with a destination media decoding device based upon the session information;

combine media data portions of the plurality of data packets into a data structure; and

forward the data structure to the destination media decoding device independently of the host processing system.