System and method for performing a direct memory access at a predetermined address in a flash storage

摘要

A flash storage device provides direct memory access based on a first communication protocol. A host selects the first communication protocol and provides a request to the flash storage device for a direct memory access. Additionally, the host provides data blocks to the flash storage device for the direct memory access. In the first communication protocol, the host need not provide an address to the flash storage device for the direct memory access. The flash storage device stores the data blocks at sequential addresses starting at a predetermined address in the flash storage device. Another host may then select a second communication protocol and transfer the data blocks in the flash storage by using the second communication protocol.

主权项

1. A method of transferring data in a flash storage device, the method comprising:
receiving a select signal from a host, the select signal indicating a selection between a first communication protocol and a second communication protocol; receiving a first request for a first direct memory access from the host by the flash storage device, the first direct memory access corresponding to at least one of the first communication protocol or the second communication protocol based on the received select signal; obtaining a predetermined address from a memory in the flash storage device in response to the first request; and performing the first direct memory access at sequential addresses in flash storage in the flash storage device starting at the predetermined address.