Network interface controller with direct connection to host memory

摘要

A network interface device for a host computer includes a network interface, configured to transmit and receive data packets to and from a network. Packet processing logic transfers data to and from the data packets transmitted and received via the network interface by direct memory access (DMA) from and to a system memory of the host computer. A memory controller includes a first memory interface configured to be connected to the system memory and a second memory interface, configured to be connected to a host complex of the host computer. Switching logic alternately couples the first memory interface to the packet processing logic in a DMA configuration and to the second memory interface in a pass-through configuration.

主权项

1. A network interface device for a host computer, the device comprising:
a network interface, configured to transmit and receive data packets to and from a network; packet processing logic, configured to transfer data to and from the data packets transmitted and received via the network interface by direct memory access (DMA) from and to a system memory of the host computer; and a memory controller, comprising:
a first memory interface configured to be connected to the system memory;a second memory interface, configured to be connected to a host complex of the host computer; andswitching logic, which alternately couples the first memory interface to the packet processing logic in a DMA configuration and to the second memory interface in a pass-through configuration.