On Fri, 15 Jul 2022, Dave Jiang wrote:
However, the spec leaves a gap WRT master passphrase usages. The spec does not define any ways to retrieve the status of if the support of master passphrase is available for the device, nor does the commands that utilize master passphrase will return a specific error that indicates master passphrase is not supported. If using a device does not support master passphrase and a command is issued with a master passphrase, the error message returned by the device will be ambiguos.
In general I think that the 2.0 spec is brief at *best* wrt to these topics. Even if a lot is redundant, there should be an explicit equivalent to the theory of operation found in https://pmem.io/documents/NVDIMM_DSM_Interface-V1.8.pdf Thanks, Davidlohr
