Title:
NVME DEVICE, AND METHODS FOR READING AND WRITING NVME DATA
Document Type and Number:
WIPO Patent Application WO/2018/076793
Kind Code:
A1
Abstract:
An NVMe device and methods for reading and writing NVMe data. The method comprises: a transceiver receiving a NVMe command written into a SQ by a host; when a SQ control module detects a change in the SQ in a SQ cache, sending the NVMe command within the SQ to a SSD controller; the SSD controller executing the NVMe command and writing a generated NVMe command response into a CQ by means of a CQ control module; and the SSD controller informing the host to read the CQ by means of triggering interruption, so that the host processes the NVMe command response within the CQ. As both the SQ and the CQ are located in an NVMe device, the CPU can directly read the NVMe response command within the CQ or directly write the NVMe command into the SQ, thereby further reducing the consumption of CPU resources. In addition, the NVMe device being designed in such waycan support CCIX by hardware, thereby realizing a uniform software memory and the heterogeneous computing of I/O operations.
Inventors:
CHANG SHENG (CN)
Application Number:
PCT/CN2017/092815
Publication Date:
May 03, 2018
Filing Date:
July 13, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F13/16
Foreign References:
| CN105892945A | 2016-08-24 | |||
| CN104111907A | 2014-10-22 | |||
| CN104246742A | 2014-12-24 | |||
| CN105589661A | 2016-05-18 | |||
| US20140331001A1 | 2014-11-06 |
Other References:
See also references of EP 3462326A4
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