Patent ID: 7962628

Claim:
A computer program product stored in a computer readable storage device having computer readable instructions embodied therein for directing a computer system to establish a data communication connection between data processing systems, comprising: first instructions for receiving, in a host system of a first data processing system, a request for establishing a connection with a second data processing system; second instructions for forwarding the request to an offload network adapter associated with the first data processing system, wherein forwarding the request to the offload network adapter includes generating a connection establishment request descriptor based on the received request and writing the connection establishment request descriptor to an input descriptor table in an input/output accessible memory in the host system, and wherein the input descriptor table is read by the offload network adapter and written to by the host system to submit control and data interface requests; third instructions for establishing, within the offload network adapter, the connection with the second data processing system, wherein a data structure describing the connection is generated within the offload network adapter; and fourth instructions for informing the host system of the established connection after the connection is established within the offload network adapter, wherein informing the host system of the established connection after the connection is established within the offload network adapter includes determining whether a delay criteria has been met and writing a connection completion response descriptor to an output descriptor table in the input/output accessible memory in the host system in response to determining that the delay criteria has been met, and wherein the delay criteria is a predetermined number of connections being established since a last connection complete response descriptor was written to the output descriptor table; and wherein the output descriptor table is read by the host system and written to by the offload network adapter to indicate results of previous requests and to notify the host system of data arrivals.