Title:
TRANSMISSION CONTROL METHOD AND DEVICE FOR DIRECT MEMORY ACCESS
Document Type and Number:
WIPO Patent Application WO/2017/000822
Kind Code:
A1
Abstract:
Disclosed are a transmission control method and device for direct memory access. The transmission control method for direct memory access comprises: when a DMA transmission request for transmitting a target DMA task is received; according to a priority corresponding to the target DMA task, selecting a target channel for same; and in the case where other DMA tasks exist in the DMA channel, by querying the task types and priorities of other DMA tasks in an occupied channel and the task type of the target DMA task and comparing the task types and priorities of other DMA tasks in the occupied channel and the task type of the target DMA task, controlling transmission data of the DMA channel according to the comparison result. By means of the present invention, data transmission can be reasonably planned according to the priority and task type of a DMA task, and an urgent DMA task can even be preferentially processed as well, thereby improving the processing efficiency and quality of service of a computer system.
Inventors:
CHEN HAO (CN)
XU HUIFENG (CN)
GUO HAITAO (CN)
XU HUIFENG (CN)
GUO HAITAO (CN)
Application Number:
PCT/CN2016/086758
Publication Date:
January 05, 2017
Filing Date:
June 22, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F13/28
Foreign References:
| CN104123252A | 2014-10-29 | |||
| CN104298628A | 2015-01-21 | |||
| CN103678199A | 2014-03-26 |
Other References:
See also references of EP 3255553A4
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