Acceleration of data packet transmission

• US 20060245358A1
• Filed: 04/29/2005
• Published: 11/02/2006
• Est. Priority Date: 04/29/2005
• Status: Abandoned Application

• Current Assignee: Qualcomm Atheros Incorporated (Qualcomm, Inc.)
• Original Assignee: Qualcomm Atheros Incorporated (Qualcomm, Inc.)
• Inventors: Beverly, Harlan Titus
• Application Number:
  US11/118,454
• Publication Number:
  US 20060245358A1
• Time in Patent Office: Days
• US Class Current: 370/235
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/13 in a LAN segment, e.g. ring or bus
• CPC Class Codes: H04L 47/193 at the transport layer, e.g. TCP related
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 47/2433 Allocation of priorities to traffic types
• CPC Class Codes: H04L 47/34 ensuring sequence integrity, e.g. using sequence numbers
• CPC Class Codes: H04L 49/90 Buffering arrangements
• CPC Class Codes: H04L 67/131 Protocols for games, networked simulations or virtual reality
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/12 Protocol engines

Abstract

An improved method of accelerating packet transmission through a network is disclosed. More specifically, methods and systems are described for the offloading of packets transmitted in a UDP format with a ULP that allows the packets to retain characteristics of packets transmitted under the TCP format. This is useful in accelerating data transmitted in any ULP format and therefore provides a degree of flexibility previously unknown in the art. In addition, methods and systems are provided for a virtualized API which allows data to be transferred through the traditional network device if the new device is not present but directs the traffic through the new device when it is present. Also, a packet abstraction layer is disclosed which uses information from the state field to run the overlay function to map the formats of the incoming and outgoing packets into the format native to the new device.

Claims

1. A method of accelerating the transmission of packets through a network comprising:

offloading packets transmitted through a network in UDP format; and

offloading an upper layer protocol of said packets, wherein said upper layer protocol provides said packets with increased functionality.

2. The method of claim 1 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

3. The method of claim 1 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

4. The method of claim 1 wherein said network is two or more computers communicatively coupled.

5. A method of accelerating the transmission of packets through a network comprising:

means for offloading packets transmitted through a network in UDP format; and

means for including and offloading with said packets an upper layer protocol which provides said packets with increased functionality.

6. The method of claim 5 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

7. The method of claim 5 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

8. The method of claim 5 wherein said network is two or more computers communicatively coupled.

9. A method of accelerating the transmission of packets through a network comprising:

packets containing data, wherein said packets are transmitted through a network to an application, wherein said packets are formatted according to the user datagram protocol;

offloading or accelerating said packets to a device; and

offloading or accelerating an upper layer protocol providing increased functionality in connection with the offloading or acceleration of said packets.

10. The method of claim 9 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

11. The method of claim 9 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

12. The method of claim 9 wherein said network is two or more computers communicatively coupled.

13. The method of claim 9 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

14. A method of accelerating the transmission of packets through a network comprising:

packets containing data, wherein said packets are transmitted through a network to an application, wherein said packets are formatted according to the user datagram protocol;

means for offloading or accelerating said packets to a device; and

means for offloading or accelerating an upper layer protocol providing increased functionality in connection with the offloading or accelerating of said packets.

15. The method of claim 14 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

16. The method of claim 14 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

17. The method of claim 14 wherein said network is two or more computers communicatively coupled.

18. The method of claim 14 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

19. A method of delivering data packets over a network comprising:

sending data from an application, wherein said data requires packetization prior to delivery through a network;

prior to said packetization, detecting whether said packets may be transmitted through a device capable of accelerating the transmission of said packets;

when said device is detected, transmitting said packets through said device so that said packets are transmitted to said application more rapidly than if said packets were not transmitted through said device.

20. The method of claim 19 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

21. The method of claim 19 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

22. The method of claim 19 wherein said network is two or more computers communicatively coupled.

23. The method of claim 19 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

24. The method of claim 19 wherein said application is one or more of video gaming and streaming video.

25. A method of delivering data packets over a network comprising:

sending data from an application, wherein said data requires packetization prior to delivery through a network;

prior to said packetization, detecting whether said packets are transmitted through a device capable of accelerating the transmission of said packets;

when said device is detected, transmitting said packets through said device so that said packets are transmitted to said network more rapidly with less burden on the computer to which said device is attached than if said packets were not transmitted through said device.

26. The method of claim 25 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

27. The method of claim 25 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

28. The method of claim 25 wherein said network is two or more computers communicatively coupled.

29. The method of claim 25 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

30. The method of claim 25 wherein said application is one or more of video gaming and streaming video and audio.

31. A method of delivering data packets over a network comprising:

means for transmitting packets through a network;

prior to transmission of said packet by an application, means for detecting whether said packets are transmitted through a device capable of accelerating the transmission of said packets;

when said device is detected, means for transmitting said packets through said device so that said packets are transmitted to said network more rapidly than if said packets were not transmitted through said device.

32. The method of claim 31 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

33. The method of claim 31 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

34. The method of claim 31 wherein said network is two or more computers communicatively coupled.

35. The method of claim 31 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

36. The method of claim 31 wherein said application is one or more of video gaming and streaming video and audio.

37. A method of improving the speed with which packets are transmitted through a network comprising:

receiving packets intended for an application through a device, wherein said packets are first processed through a network stack;

obtaining the State_ID of the connection of said packet;

mapping the original format of said packet into the native format of said device;

interpreting and processing said packets in said native format using a core engine;

delivering processed data from said packets to an application or an API in a manner useful to said application or said API.

38. The method of claim 37 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

39. The method of claim 37 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

40. The method of claim 37 wherein said network is two or more computers communicatively coupled.

41. The method of claim 37 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

42. The method of claim 37 wherein said application is one or more of video gaming and streaming video and audio.

43. The method of claim 37 wherein said State_ID is entered into a State_ID table.

44. A method of improving the speed with which packets are received from a network comprising:

means for receiving packets intended for an application through a device, wherein said packets are first processed through a network stack;

means for obtaining the State_ID of the connection of said packet;

means for mapping the original format of said packet into the native format of said device;

means for interpreting and processing said packets in said native format using a core engine;

means for delivering processed data from said packets to an application or an API in a manner useful to said application or said API.

45. The method of claim 44 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

46. The method of claim 44 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

47. The method of claim 44 wherein said network is two or more computers communicatively coupled.

48. The method of claim 44 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

49. The method of claim 44 wherein said application is one or more of video gaming and streaming video and audio.

50. The method of claim 44 wherein said State_ID is entered into a State_ID table

51. A method of accelerating the transmission of a packet through a network comprising:

a packet transmitted through a network, wherein said packet is transmitted in a UDP format with a specific ULP, wherein said ULP is native to at least one device through which said packets are transmitted;

operating an application containing API calls to said UDP and said ULP.

52. The method of claim 51 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

53. The method of claim 51 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

54. The method of claim 51 wherein said network is two or more computers communicatively coupled.

55. The method of claim 51 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

56. The method of claim 51 wherein said application is one or more of video gaming and streaming video and audio.

57. A method for virtualizing an application programming interface comprising:

detecting whether or not a device is present on a network and, if present, directing packets through said device;

translating API calls for said packets into a format native to, or recognized by, said device.

58. The method of claim 57 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

59. The method of claim 57 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

60. The method of claim 57 wherein said network is two or more computers communicatively coupled.

61. The method of claim 57 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

62. A packet abstraction layer comprising:

obtaining the state of a connection for which data is to be transmitted;

when receiving said data, using said state to map the format of the packet within which said data is contained into the format native to the device within which the packet abstraction layer resides; and

when transmitting said data, using said state to format native to the device within which the packet abstraction layer resides to the format that is expected by a link partner.

63. The packet abstraction layer of claim 62 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

64. The packet abstraction layer of claim 62 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

65. A system for accelerating the transmission of packets through a network comprising:

a network; and

packets transmitted through said network wherein said packets are offloaded in UDP format and said packets include an upper layer protocol which provides said packets with increased functionality.

66. The system of claim 65 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

67. The system of claim 65 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

68. The system of claim 65 wherein said network is two or more computers communicatively coupled.

69. A system for accelerating the transmission of packets through a network comprising:

a network;

an application;

a device communicatively coupled with said network;

wherein data is presented from said application to said device, and therafter, said device offloads the upper layer protocol and the user datagram protocol to create packets which are transmitted through said network.

70. The system of claim 69 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

71. The method of claim 69 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

72. The method of claim 69 wherein said network is two or more computers communicatively coupled.

73. The method of claim 69 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

74. The system of claim 69 wherein said application is one or more of video gaming and streaming video and audio.

75. A system for accelerating the transmission of packets through a network comprising:

a network;

an application;

a device communicatively coupled with said network;

wherein packets are presented from said network to said device, and therafter, said device removes the upper layer protocol and the user datagram protocol to reveal the data which is transmitted to said application.

76. The system of claim 75 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

77. The method of claim 75 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

78. The method of claim 75 wherein said network is two or more computers communicatively coupled.

79. The method of claim 75 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

80. The system of claim 75 wherein said application is one or more of video gaming and streaming video and audio.

81. A system for delivering data packets over a network comprising:

a network;

an application operating on a computer communicatively connected to said network;

a device communicatively connected to said network;

wherein a packet containing data useful to said application is sent through said network, and, prior to receipt of said data by said application, a method is provided for detecting whether said packets are transmitted through a device capable of accelerating the transmission of said packets and, when said device is detected, routing said packets through said device so that said data is transmitted to said application more rapidly than if said packets were not routed through said device.

82. The system of claim 81 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

83. The system of claim 81 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

84. The system of claim 81 wherein said network is two or more computers communicatively coupled.

85. The system of claim 81 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

86. The system of claim 81 wherein said application is one or more of video gaming and streaming video and audio

87. A system for improving the speed with which packets are transmitted through a network comprising:

a network;

an application operating on a computer communicatively connected to said network;

a device communicatively connected to said network, wherein packets sent through said network to said application pass through said device and, within said device,

packets are first processed through a network stack;

a State_ID of the connection of said packet is obtained;

the original format of said packet is mapped into the native format of said device; and

said packets are interpreted in said native format using a core engine.

88. The system of claim 87 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

89. The system of claim 87 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

90. The system of claim 87 wherein said network is two or more computers communicatively coupled.

91. The system of claim 87 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

92. The system of claim 87 wherein said application is one or more of video gaming and streaming video and audio.

93. The system of claim 87 wherein said State_ID is entered into a State_ID table

94. A system for accelerating the transmission of a packet through a network comprising:

a network;

a packet transmitted through said network, wherein said packet is transmitted in a UDP format with a specific ULP, and wherein said ULP is native to at least one device through which said packets are transmitted; and

an application containing API calls to said UDP and said ULP.

95. The system of claim 94 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

96. The system of claim 94 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

97. The system of claim 94 wherein said network is two or more computers communicatively coupled.

98. The system of claim 94 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.

99. The system of claim 94 wherein said application is one or more of video gaming and streaming video and audio.

100. A system for virtualizing an application programming interface comprising:

a network;

packets transmitted through said network;

a device capable of translating information within said packets into a format native to, or recognized by, said device; and

a means for detecting whether or not said device is present on said network and, if present, directing said packets through said device.

101. The system of claim 100 wherein said packet is a datagram consisting of a message transmitted over a packet-switched network and contains the destination address for said packet in addition to the data contained therein.

102. The system of claim 100 wherein said network is one or more networks selected from the group consisting of the Internet, an intranet, a wide area network and a local area network.

103. The system of claim 100 wherein said network is two or more computers communicatively coupled.

104. The system of claim 100 wherein said device is one or more components selected from the group consisting of an ASIC, a FPGA, a structured ASIC, a device embedded on a larger chip, a PCI card, a PCI-express card, a PCMCIA card, other expansion cards, a motherboard, a stand-alone device, software running on an embedded device, a PowerPC processor and software.