发明名称 |
Single DMA transfers from device drivers to network adapters |
摘要 |
Methods and arrangements of data communications are discussed. Embodiments include transformations, code, state machines or other logic to provide data communications. An embodiment may involve receiving from a protocol stack a request for a buffer to hold data. The data may consist of all or part of a payload of a packet. The embodiment may also involve allocating space in a buffer for the data and for a header of a packet. The protocol stack may store the data in a portion of the buffer and hand down the buffer to a network device driver. The embodiment may also involve the network device driver transferring the entire packet from the buffer to a communications adapter in a single direct memory access (DMA) operation.
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申请公布号 |
US8054848(B2) |
申请公布日期 |
2011.11.08 |
申请号 |
US20090468741 |
申请日期 |
2009.05.19 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CARDONA OMAR;CUNNINGHAM JAMES B.;DE LEON, III BALTAZAR;MESSING JEFFREY P. |
分类号 |
H04L12/28 |
主分类号 |
H04L12/28 |
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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