发明名称 |
Method and system for optimizing DMA channel selection |
摘要 |
A host bus adapter coupled to a network and a host computing system is provided. The host bus adapter includes a direct memory access ("DMA")mode detection module that receives a DMA channel identifier information from an arbitration module that receives requests from plural DMA channels, wherein the DMA mode detection module includes a DMA counter that counts a number of times a single DMA channel is exclusively serviced by the arbitration module and if the DMA counter value is equal to a threshold value, then the DMA mode detection module enables a single channel mode during which standard transaction rules are ignored for determining DMA request lengths for transferring data. The single channel mode is enabled for a certain duration. The host bus adapter includes a rule based segmentation logic that may be enabled and/or disabled by host bus adapter firmware and/or detection of a single channel mode condition.
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申请公布号 |
US2006053236(A1) |
申请公布日期 |
2006.03.09 |
申请号 |
US20040935919 |
申请日期 |
2004.09.08 |
申请人 |
SONKSEN BRADLEY S;CHU KUANGFU D;GANDHI RAJENDRA R |
发明人 |
SONKSEN BRADLEY S.;CHU KUANGFU D.;GANDHI RAJENDRA R. |
分类号 |
G06F13/28 |
主分类号 |
G06F13/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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