Apparatus and Methods for Providing Quality of Service over a Virtual Interface for Solid-State Storage

An apparatus comprising:

• a hardware-based processor;
• a memory coupled to the processor and configured to maintain processor-executable instructions that, responsive to execution, implement an application on the apparatus;
• a host interface configured to enable the application to access data in solid-state storage operably coupled to the apparatus;
• and
• a storage media switch that provides a storage media interface and a Quality of Service (QoS) manager implemented to:
• receive, via the host interface and from the application, an input/output (I/O) command for data access that is associated with an identifier of a virtual interface associated with a namespace through which data of the solid-state storage is accessible;
• determine, based on the I/O command, an amount of the data of the solid-state storage that the I/O command will access through the namespace;
• determine whether the amount of data that the I/O command will access through the namespace exceeds a predefined threshold for data access through the namespace over a duration of time;
• and
• release, via the storage media interface, the I/O command to the solid-state storage in response to determining that the amount of data that the I/O command will access does not exceed the predefined threshold.

A System-on-Chip (SoC) comprising:

• a storage media interface configured to enable access to solid-state storage;
• a host interface configured to enable communication with a host device;
• a hardware-based processor;
• a memory configured to store processor-executable instructions that, responsive to execution by the hardware-based processor, implement a Quality of Service (QoS) manager to:
• receive, via the host interface and from the host device, an input/output (I/O) command for data access that is associated with an identifier of a virtual interface associated with a namespace through which data of the solid-state storage is accessible;
• determine, based on the I/O command, an amount of the data of the solid-state storage that the I/O command will access through the namespace;
• determine whether the amount of data that the I/O command will access through the namespace exceeds a predefined threshold for data access through the namespace over a duration of time;
• and
• release, via a storage media interface, the I/O command to the solid-state storage in response to determining that the amount of data that the I/O command will access does not exceed the predefined threshold;
• or
• delay the release of the I/O command to the solid-state storage in response to determining that the amount of data that the I/O command will access meets or exceeds the predefined threshold.