Intel(R) IQ80315 I/O Processor DMA and XOR Library APIs and ...
Intel(R) IQ80315 I/O Processor DMA and XOR Library APIs and ...
Intel(R) IQ80315 I/O Processor DMA and XOR Library APIs and ...
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<strong>Intel</strong> ® GW80314 I/O <strong>Processor</strong> <strong>DMA</strong> <strong>and</strong> <strong>XOR</strong> <strong>Library</strong><strong>Library</strong> Function PrototypesItemDescriptionOutputPurposeOperationthe number of descriptors returnedReturn Frames completed frames to the channel Free Stack• Get chainHead<strong>DMA</strong><strong>XOR</strong>[4] value for first descriptor in chain• Get chainTail<strong>DMA</strong><strong>XOR</strong>[4] for alst descriptor in chain• Traverse <strong>DMA</strong> channel chain from head to tail, removing descriptors from post queue<strong>and</strong> placing them in free queue.• Adjust chainHead<strong>DMA</strong><strong>XOR</strong>[4]• Return number of descriptors returnedE.2.10void * lib_q_get(XorDma_80314_Type * mgr, enum CHANNELchannel)ItemDescriptionPrototype void * lib_q_get(XorDma_80314_Type * mgr, enum CHANNEL channel)InputOutputPurposeOperationmgr: The XorDma_80314_Type usedchannel: either Channel 0, 1, 2, or 3Return a pointer to the Frame removed from the channel queueRetrieve frame on FIFO sequence from queue.• Get Frame using FIFO• Adjust state of queue to reflect removed frame<strong>APIs</strong> <strong>and</strong> Testbench White Paper 75
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