Memory storage device including a configurable data transfer trigger

A method for triggering a data transfer from a storage device to a host device, the method comprising:

• receiving, by the storage device, a host command from the host device to retrieve data from storage memory;
• assigning, by the storage device, a bitmap for the host command;
• executing, by the storage device, one or more operations associated with the host command to retrieve one or more chunks of the data from the storage memory;
• changing, by the storage device, a state of a corresponding bit from among one or more specified bits in the bitmap in response to an execution completion of a corresponding operation from among the one or more operations;
• monitoring, by the storage device, the specified bits of the bitmap;
• and
• triggering, by the storage device, a data transfer of the one or more chunks of the data in a constrained order in response to the specified bits of the bitmap having a changed state from an initial state.

A storage device comprising:

• a storage controller to execute one or more operations associated with a host command received from a host device over a storage interface, the one or more operations to retrieve one or more chunks of data associated with the host command from storage memory;
• and
• a bitmap circuit to track a constrained order of the one or more chunks of data to be transferred to the host device, the bitmap circuit comprising:
• an assigned bitmap comprising one or more specified bits corresponding to the constrained order;
• a compare bitmap circuit to generate a compare bitmap according to a count value and a start position indicating the one or more specified bits in the assigned bitmap;
• and
• a trigger bitmap circuit to compare the assigned bitmap with the compare bitmap to determine a state of the specified bits in the assigned bitmap, and to trigger a data transfer of the one or more chunks of data to the host device in the constrained order according to the state of the specified bits,
• wherein the trigger bitmap circuit is to trigger the data transfer in response to the specified bits having a changed state from an initial state.