The IntelliProp IPC-NV171B-BR NVMe-to-NVMe Bridge utilizes the IntelliProp NVMe Host Accelerator Core and the IntelliProp NVMe Target Core to create an NVMe protocol bridge. The bridge is architected such that the command submissions, completion notifications and data transmissions may be either passed through without interruption or intercepted for analysis or modification. The architecture implements a ”sandbox” area in the bridge so that IntelliProp customers may implement their own custom RTL and/or firmware in the bridge.
The protocol interface is compliant to the NVM Express 1.4C specification and is fully verified using a coverage driven methodology in pseudo random simulation.
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NVMe-to-NVMe Bridge IP Core Applications
The IPC-NV171B-BR sandbox provides a “bump in the wire” that allows the customer to insert customer specific algorithms such as:
- High performance read/write caching
- Data Deduplication
- LBA Remapping
- Namespace manipulation
- Data encryption
- Data compression
- Endpoint aggregation
NVMe-to-NVMe Bridge IP Core Features
- Fully compliant to the NVM Express 1.4C industry specification
- Automated initialization process with PCIe Hard Block
- Automated command submission and completion
- Scalable I/O queue depth
- Support for 256 outstanding I/O commands
- Processor or State Machine driven interface
- Submission queue command context error prevention
- Support for block sizes from 512 byte to 16kB
- Application layer (command based) interface with Processor interface
Provided with the NVMe-to-NVMe Bridge IP Core
| Documentation: | Comprehensive User Documentation |
| Design File Formats: | Encrypted Verilog |
| Constraints Files: | Provided per FPGA |
| Verification: | ModelSim verification model |
| Instantiation Templates: | Verilog (VHDL wrappers available) |
| Reference Designs & Application Notes: | Synthesis and place and route scripts |
| Additional Items: | Reference Design |
| Simulation Tool Used: | ModelSim (contact IntelliProp for latest versions supported) |
| Support: | The purchased core is delivered and warranted against defects for 6 months from the date of delivery. Phone and email technical support is included for 6 months from the delivery date. |
| Notes: | Other simulators are available. Please contact IntelliProp for more information. |
Functional Description
The IntelliProp NVMe Bridge, IPC-NV171B-BR, implements a protocol bridge by receiving and parsing commands via the IntelliProp NVMe Target Core and forwarding them to the IntelliProp NVMe Host Accelerator Core for delivery to the NVMe SSD Endpoint. Customizable bridging logic between these two cores facilitates command management, including forwarding and tracking outstanding commands and routing data accesses appropriately, while a Sandbox area provides visibility and flexibility into the buffered data as it is transferred between the Host and the Target. Registers in the bridging logic provide firmware with a mechanism to control data movement, to manually issue individual commands, and to control status and behavior of the bridging function. A processor or other management agent is expected to receive and properly complete administrative commands from the NVMe Target Core, while I/O commands are executed autonomously by the bridging logic. As a result, the NVMe Bridge provides transparency between the Host and the Endpoint SSD, while offering the designer flexibility in command and data manipulation.