Network interface device

A network interface controller comprising:

• a network interface configured to interface with a network, the network interface configured to receive data from the network and transmit to the network;
• a host interface configured to interface with a host device, the host interface configured to receive data from the host device and transmit data to the host device;
• and
• data path circuitry configured to cause data to be at least one of moved into or out of the network interface controller, the data path circuitry comprising:
• a host data path unit (DPU.Host) configured to communicate with the host device;
• a network data path unit (DPU.Net) configured to communicate with the network;
• first circuitry for providing one or more data processing operations;
• and
• interface circuitry supporting a plurality of channels, the plurality of channels comprising:
• command channels configured to pass messages from user logic to the DPU.Host and the DPU.Net to receive command information from a plurality of data path circuitry user instances, the command information indicating a path for associated data through the data path circuitry and one or more parameters for the one or more data processing operations provided by the first circuitry;
• event channels configured for passing command completion messages from the DPU. Host and the DPU.Net to the user logic;
• and
• data channels providing the associated data to the plurality of data path circuitry user instances.