METHOD OF ACCESSING NVMeoF MEMORY REGION OF A REMOTE TARGET DEVICE BY A HOST CPU

A method of accessing a Non-Volatile Memory express (NVMe) memory region of a remote target device by a host Central Processing Unit (CPU), the method comprising:

• establishing, by the host CPU, a NVMeoF transport connection with the remote target device;
• sending, by the host CPU, a NVMeoF connect command that creates an admin submission queue in the remote target device when the NVMeoF transport connection is established with the remote target device;
• sending, by the host CPU, a vendor-specific command that requests access to the NVMeoF memory region of the remote target device to the remote target device when the admin submission queue is created in the remote target device;
• receiving, by the host CPU, an access privilege comprising at least one of a memory region address and a key of the NVMeoF memory region of the remote target device in response to the vendor-specific command;
• accessing, by the host CPU, the NVMeoF memory region of the remote target device by sending Remote Direct Memory Access (RDMA) write or RDMA read operations;
• and
• receiving, by the host CPU, at least one of a RDMA acknowledgement and a RDMA read response from the remote target device when accessing the NVMeoF memory region of the remote target device is completed.

A host Central Processing Unit (CPU) that accesses a Non-Volatile Memory express over Fabrics (NVMeoF) memory region of a remote target device, the host CPU comprising:

• a processor;
• and
• a memory communicatively coupled to the processor, wherein the memory stores processor-executable instructions, which on execution, cause the processor to:
• establish a NVMeoF transport connection with the remote target device;
• create an admin queue by sending a NVMeoF connect command to the remote target device when the NVMeoF transport connection is established with the remote target device;
• access the NVMeoF memory region of the remote target device by sending PropertyGet/PropertySet commands to an admin submission queue of the remote target device;
• receive one of (a) PropertyGet/PropertySet completion queue entries from the remote target device when accessing the NVMeoF memory region of the remote target device is completed, or (b) Remote Direct Memory Access (RDMA) write or RDMA read requests from the remote target device in response to PropertyGet/PropertySet submission queue entries;
• and
• receive completion queue entries from the remote target device when the accessing of the NVMeoF memory region of the remote target device is completed.