Shenzhen Epostar Electronics Limited Co.

Ke-Wei Chan

Hung-Chih Hsieh

Di-Hsien Ngu

A command processing method and a storage controller are provided. The command processing method includes performing a command merging process on commands sequentially received by a command queue. The command merging process includes an initialization step and multiple iterations. The initialization step includes transmitting the commands from the command queue to a continuity checking pool (CCP), transmitting an initial command of the commands from the CCP to a continuity list (CL) and setting a range of the CL. Each of the iterations includes transmitting the commands from the command queue to the CCP; determining whether the commands in the CCP and the range of the CL conform to a continuity condition; and when the commands in the CCP and the range conform to the continuity condition, appending the first command to the CL and resetting the range of the CL according to the first command.

Command processing method and storage controller using the same

A data management method and a storage controller are provided. The method includes: receiving write sectors corresponding to a write command and transmitting the write sectors to a partial block buffer or a full block buffer; when the write sectors corresponding to a first block are transmitted to the partial block buffer, starting a timer corresponding to the first block; when the partial block buffer receives first write sectors corresponding to the first block and the first write sectors and the write sectors corresponding to the first block in the partial block buffer form a full first block, the first block is transmitted to the full block buffer before or when the timer is expired; and when the timer is expired and the full first block is not yet formed in the partial block buffer, performing a read-modify-write operation according to the write sectors corresponding to the first block.

Data management method and storage controller using the same

A command processing method and a storage controller using the same are provided. The command processing method includes: receiving a plurality of I/O commands; categorizing the I/O commands into a plurality of groups according to a processor effort index of the I/O commands; selecting a first group from the groups, resetting a timer and obtaining an expiration time corresponding to the first group according to the I/O commands of the first group, and executing the I/O commands of the first group; and selecting a second group from the groups and resetting the timer when the expiration time of the first group expires, wherein when the processor effort index of the first group is less than a threshold, a clock frequency of the processor is lowered before the expiration time expires.

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Hsinchu, Taiwan

Ke-Wei Chan