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US 7,480,310 B2Granted
Flexible DMA descriptor support
AssigneeBroadcom Corporation
InventorGovind Malalur
Life of this patent
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Abstract
A method of processing DMA operations includes providing a DMA descriptor, with the DMA descriptor including a reload field therein. The DMA descriptor is then processed, and a location of a next DMA descriptor is identified based upon a condition of the reload field.
Claims21
A method of handling packets in a network device, said method comprising the steps of:
- inserting a stack-specific tag into an incoming packet;
- processing the packet in a stack of network devices in accordance with tag information in the stack-specific tag;
- and
- performing a DMA operation within the network device, said DMA operation pertaining to packet handling within the network device,
- wherein said step of performing a DMA operation comprises the steps of
- providing a DMA descriptor, and
- processing said DMA descriptor.
4 more elements
A network device for handling packets, said network device comprising:
- a tag insertion unit for inserting a stack specific tag into a packet;
- a processing unit for processing the packet in a stack of network devices in accordance with tag information in the stack-specific tag;
- a DMA unit containing DMA descriptor information therein;
- and a DMA processing unit for processing the DMA descriptor.
1 more element
Dependencies are inferred from the claim text.