Method and device for improving state of obtained descriptor, computer device and storage medium

Abstract

The invention discloses a method and device for improving the state of an obtained descriptor, a computer device and a storage medium. The method comprises the following steps: judging whether a Nandflash controller channel has new data information or not; if yes, storing the state of the Nandflash controller descriptor into the hardware BUFF; updating the read pointer and the write pointer by hardware; judging whether the read pointer is equal to the write pointer; if not, the hardware notifying the Nandflash controller to acquire the state of the descriptor; and processing the obtained descriptor state and releasing the corresponding descriptor channel. According to the method, the state of the Nandflash controller descriptor is stored in the hardware BUFF, hardware can actively triggerinterruption to inform the Nandflash controller to obtain a descriptor state in the hardware BUFF; according to the method and the device, so the utilization rate of Nandflash controller channels is increased. The state of obtaining the descriptors is more timely. The method and the device do not depend on cyclic query of a CPU on each Nandflash controller channel, the efficiency of obtaining thedescriptors is greatly improved, and the performance of the solid state disk is further improved.

Description

technical field [0001] The invention relates to a solid-state hard disk, more specifically to a method, device, computer equipment and storage medium for improving the acquisition of descriptor states. Background technique [0002] In SSD (Solid State Drive), the descriptor status is used to display the status of the NAND descriptor operation. Acquiring the descriptor status in time can effectively improve the processing speed of NAND information, and at the same time, it can release the processed channels in time to improve Utilization of the NFC channel (Nandflash controller channel). [0003] At present, the schematic diagram of obtaining the descriptor state query of the solid-state hard disk is as follows: figure 1 As shown, in the SSD, the descriptor status of each NFC channel is cyclically inquired to obtain the descriptor status. Before the processing of the descriptor state is completed, the NFC channel will always be occupied. Only when the descriptor state is ob...

AI Technical Summary

Problems solved by technology

The above execution method will cause the CPU to query each channel in turn, which wastes CPU. At the same time, each channel cannot fill in the next descriptor before the descriptor is completed, and it cannot be processed in time when the descriptors in other channels are completed first, so Obtaining the descriptor state is slow, the descriptor acquisition efficiency is low, and the NFC channel utilization is low

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