Memory management for high speed media access control
AssigneeQUALCOMM Incorporated
InventorsSubrahmanyam Dravida, Sriram Narayan
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Abstract
Aspects disclosed herein address the need in the art for memory management for high speed media access control. A packet buffer may store packets with a first data structure, comprising the packet length, sequence number, and a pointer to a second data structure. Packet data may be stored in a linked list of one or more second data structures. Transmit and receive queues may be formed using linked lists or arrays of the first data structures. Memory locations for storing first and second data structures may be kept in lists indicating free locations for the respective data structure types. A flexible memory architecture is disclosed in which two configurations may be selected. Various other aspects are also presented.
Claims21
A method, comprising:
- selecting a first or second mode;
- the first mode comprising:
- storing in a first memory one or more parameters for each of a plurality of communication flows;
- and
- storing in a second memory packets for each of the plurality of communication flows;
- the second mode comprising:
- storing in the first memory a pointer for each of the plurality of communication flows, each pointer indicating a location associated with the respective communication flow;
- storing in the second memory a plurality of sets of one or more parameters for each of the plurality of communication flows, each set of one or more parameters stored in the location indicated by the pointer associated with the respective communication flow;
- and
- configuring a memory interface operable with a third memory to be operative to store packets for each of the plurality of communication flows.
An apparatus, comprising:
- a packet buffer comprising a first data structure and a second data structure,
- wherein the first data structure comprises a length of a first packet, a sequence number of the first packet, and a location of the second data structure in the packet buffer, and
- wherein the second data structure comprises data from the first packet.
A device, comprising:
- a first data structure stored in a memory, the first data structure comprising a length of a first packet and a sequence number of the first packet;
- and
- a second data structure stored in a memory, the second data structure comprising data from the first packet,
- wherein the first data structure further comprises a memory location of the second data structure.
A wireless communication device for memory management for high speed media access control, comprising:
- a first memory storing in a first data structure a length of a packet, a sequence number of the packet, and a data pointer;
- and
- a second memory storing in a second data structure a header and data from the first packet, wherein the header and data associated with the first packet are located by the use of the data pointer, wherein the first and second data structures are different.
Dependencies are inferred from the claim text.