Abstract: A memory card, for use with a host system, combines both: (i) non-volatile memory express (NVMe) data storage such as a solid state drive (SSD) with (ii) dynamic random access memory (DRAM) conforming to the computer express link (CXL) protocol. The SSD and CXL DRAM share a common controller. CXL memory requests from the host system are handled according to the CXL.io protocol. NVMe data requests are wrapped into a CXL request packet. The common front end identifies the NVMe data request(s) within the CXL packet, parses the NVMe data request, and routes the request to the NVMe memory. A host operating system software driver intercepts the NVMe memory requests and wraps them into the CXL request packet.

Abstract: Systems and methods are disclosed for deterministically validating an SSD device, based on the occurrence of a triggering firmware event. In some implementations, a method is provided. The method comprising receiving an ID of a triggering firmware event from a computing device and receiving data of a cross feature event from the computing device. A storage device may execute a plurality of NVMe commands as part of a test to generate a plurality of firmware events. An ID of each of the plurality of firmware events is compared to the ID of the triggering firmware event and in response to an ID of one of the plurality of firmware events matching the ID of the triggering firmware event, the one of the plurality of firmware events may be identified as the triggering firmware event and an indication of the match may be generated. At least part of the data of the cross feature event is transmitted to the storage device to cause execution of the cross feature event during execution of the triggering firmware event.

Abstract: In one embodiment, an apparatus is provided. The apparatus includes a first interface configured to communicate with a computing device. The apparatus also includes a second interface configured to communicate with a data storage device. The apparatus further includes a processing device coupled to the first interface and the second interface. The processing device is configured to receive, from the computing device via the first interface, a request to measure a set of performance metrics for the data storage device. The processing device is also configured to identify a set of commands used to measure the set of performance metrics for the data storage device. The processing device is further configured to determine whether the set of commands has been performed by the data storage device.

Abstract: Systems and methods are disclosed for deterministically validating an SSD device, based on the occurrence of a triggering firmware event. In some implementations, a method is provided. The method comprising receiving an ID of a triggering firmware event from a computing device and receiving data of a cross feature event from the computing device. A storage device may execute a plurality of NVMe commands as part of a test to generate a plurality of firmware events. An ID of each of the plurality of firmware events is compared to the ID of the triggering firmware event and in response to an ID of one of the plurality of firmware events matching the ID of the triggering firmware event, the one of the plurality of firmware events may be identified as the triggering firmware event and an indication of the match may be generated. At least part of the data of the cross feature event is transmitted to the storage device to cause execution of the cross feature event during execution of the triggering firmware event.

Abstract: In one embodiment, an apparatus is provided. The apparatus includes a first interface configured to communicate with a computing device. The apparatus also includes a second interface configured to communicate with a data storage device. The apparatus further includes a processing device coupled to the first interface and the second interface. The processing device is configured to receive, from the computing device via the first interface, a request to measure a set of performance metrics for the data storage device. The processing device is also configured to identify a set of commands used to measure the set of performance metrics for the data storage device. The processing device is further configured to determine whether the set of commands has been performed by the data storage device.