Selective completion synchronization in P2P CXL transactions

A data storage device, comprising:

• one or more Compute Express Link (CXL) memory devices;
• and
• a controller coupled to the one or more CXL memory devices, wherein the controller is configured to:
• receive a plurality of write commands to write data to a CXL memory device of the one or more CXL memory devices,
• perform at least one posted write command of the plurality of write commands;
• evaluate at least one condition of the data storage device;
• determine whether to perform a sync-point operation based on the evaluating, wherein the sync-point operation validates whether the at least one posted write command was actually written to the CXL memory device;
• and
• perform the sync-point operation, wherein the sync-point operation comprises performing at least one non-posted write command of the plurality of write commands or a deferrable write command.

A data storage device, comprising:

• means to store data using a Compute Express Link (CXL);
• and
• a controller coupled to the means to store data, wherein the controller is configured to:
• receive a plurality of write commands to write data to the means to store data,
• perform at least one posted write command of the plurality of write commands;
• evaluate at least one condition of the data storage device;
• determine whether to perform a sync-point operation based on the evaluating, wherein the sync-point operation validates whether the at least one posted write command was actually written to the means to store data;
• and
• perform the sync-point operation, wherein the sync-point operation comprises performing a non-posted write command of the plurality of write commands or a deferrable write command, wherein the at least one condition comprises one or more of:
• a number of write commands performed since a last performance of the sync-point operation is greater than or equal to a first threshold;
• and
• a time elapsed since the last performance of the sync-point operation is greater than or equal to a second threshold.