Invention Grant
US09460024B2 Latency reduction for direct memory access operations involving address translation
有权
用于涉及地址转换的直接存储器访问操作的延迟减少
- Patent Title: Latency reduction for direct memory access operations involving address translation
- Patent Title (中): 用于涉及地址转换的直接存储器访问操作的延迟减少
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Application No.: US13906004Application Date: 2013-05-30
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Publication No.: US09460024B2Publication Date: 2016-10-04
- Inventor: Bhavesh Davda , Benjamin Charles Serebrin
- Applicant: VMware, Inc.
- Applicant Address: US CA Palo Alto
- Assignee: VMware, Inc.
- Current Assignee: VMware, Inc.
- Current Assignee Address: US CA Palo Alto
- Main IPC: G06F13/28
- IPC: G06F13/28 ; G06F12/10 ; G06F12/14

Abstract:
Latency reduction for direct memory access operations involving address translation is disclosed. Example methods disclosed herein to perform direct memory access (DMA) operations include initializing a ring of descriptors, the descriptors to index respective buffers for storing received data in a first memory. Such example methods also include causing prefetching of a first address translation associated with a second descriptor in the ring of descriptors to be performed after a first DMA operation is performed to store first received data in a first buffer indexed by a first descriptor in the ring of descriptors and before second received data to be stored in the first memory is received, the first address translation being associated with a second DMA operation for storing the second received data in the first memory.
Public/Granted literature
- US20140281055A1 LATENCY REDUCTION FOR DIRECT MEMORY ACCESS OPERATIONS INVOLVING ADDRESS TRANSLATION Public/Granted day:2014-09-18
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