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Multi-queue single-FIFO architecture for quality of service oriented systems

  • US 20050157709A1
  • Filed: 01/20/2004
  • Published: 07/21/2005
  • Est. Priority Date: 01/20/2004
  • Status: Active Grant
First Claim
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1. A multi-queue network apparatus for quality of service oriented communication, comprising:

  • a host system comprising a system memory and a peripheral bus, the system memory including a plurality of queues each of which is configured to store data packets to be transmitted; and

    a peripheral module comprising;

    an arbiter, adapted to interface with the peripheral bus, maintaining a plurality of next access pointers targeting each queue within the system memory, respectively, determining which queue is to be serviced next contingent upon a quality of service policy, and fetching at least one data packet identified by the chosen queue'"'"'s next access pointer;

    a FIFO buffer, connected to the arbiter, storing and managing the fetched data packet in a first-in-first-out manner; and

    physical layer interface logic, connected to the FIFO buffer, accepting therefrom each data packet, if available, and preparing the data packet for transmission on a physical medium.

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