NVMe over TCP IP core - End-to-End NVMe-oF TCP connectivity with no CPU!

Overview

Key Features

• NVMe/TCP (NVMe over TCP) host controller (Initiator), based on NVMe-oF specification rev 1.1 and NVMe specification rev 1.4
• Access one NVMe SSD on the target (Subsystem), selected by NVMe name (NQN)
• Command: Write and Read
• High performance:
  • NVMeTCP25G-IP: Write = 2500MB/s, Read = 2600MB/s (1MB buffer)
  • NVMeTCP10G-IP: Write = 1200MB/s, Read = 1200MB/s (1MB buffer)
• Data interface: Memory-mapped interface
• Data size per command: Fixed at 4 Kbytes
• Maximum command: 256 or less, limited by Read buffer size for Read command
• Configurable Read buffer size: 32Kbytes (up to 8 Read Cmd) - 1Mbytes (up to 256 Read Cmd)
• Supported NVMe/TCP target:
  • IOCCSZ (I/O Queue Command Capsule Support Size): More than or equal to 4160 (1040h)
  • MQES (Maximum Queue Entries Supported): More than or equal to 256 (100h)
  • MAXCMD (Maximum Outstanding Commands): More than or equal to 256 (100h)
  • Authentication: Not required
• Networking: 10Gb Ethernet speed in the same network for transferring ARP request/reply packet by using jumbo frame packet
• Ethernet MAC interface: 64-bit AXI4 Stream interface at 156.25 MHz
• User clock frequency: 156.25 MHz, the same clock as EMAC interface
• Available reference design: KCU105/ZCU102/ZCU106 board
• Customized service
  • NVMe/TCP Target in different network that cannot transfer ARP packet to get Target MAC address
  • The network that does not support jumbo frame packet

Block Diagram

Technical Specifications