The following features are not supported in the NVMe Target Controller IP.
- Controller memory buffer (CMB).
- Boot partition.
- Queue depths not in the power of two.
- Non-contiguous SQ/CQs.
- Vendor specific arbitration.
- Weighted round robin (WRR) arbitration.
- Variable metadata format per namespace.
- NVM subsystem reset feature.
- Index/data pair registers and access.
- Mixture of commands with different metadata options.
- Advanced optional features, like power management, reservations, HMB, RPMB, device self-test, telemetry, sanitize, boot partitions, etc.
- Optional admin commands.
- Optional I/O commands.
- Error checks other than specified in this specification are not supported.