Certain aspects of a method and system for a system-on-a-chip (SoC) device with integrated support for Ethernet, TCP, iSCSI, RDMA, and network application acceleration are provided. Aspects of the method may include storing on a multifunction host bus adapter (MHBA) chip that handles a plurality of protocols, at least a portion of received data for at least one of a plurality of network connections. The MHBA chip may be configured for handling the received data based on one of the plurality of protocols that is associated with the received data. The received data for the at least one of the plurality of network connections may be processed within the MHBA chip. The one of the plurality of protocols may include an Ethernet protocol, a transmission control protocol (TCP), an Internet protocol (IP), an Internet small computer system interface (iSCSI) protocol, and/or a remote direct memory access (RDMA) protocol.