Abstract: A high speed data communications method and system is provided whereby multiple groups of software interfaces are used to link a Distributed Systems Services Unit to a Network Provider which connects to an Input/Output Interface Module which relates to external interfaces of a Network. The interfaces permit the capability of buffer sharing and lock pool sharing, in addition to improved Connection Library Element Interfaces which reduce the overhead that was previously required and further enables faster data transfer operations with reduced latency.

Abstract: An improved high-speed data communications system is provided having software functions which permit a Network Data Path Interface to work in conjunction with a Distributed System Service application and a Network Provider application for enhancing data transfers to a Input/Output module and Network Processor. The improved Network Data Path Interface functions involve transmitting data outward to Channel Adapters via the use of shared buffers which can be re-used after utilization, and also receiving data by the sharing of buffers between a Distributed System Service application software unit, a Network Provider unit, and the Network Data Path Interface, enabling data to be received by the Network Provider for transferral to the Distributed System Service application unit.

Abstract: An Output Interface function for a Cooperative Service Interface which allows export of data from a Distributed System Services unit (DSS) to a Network Provider unit (NP) whereby lock pools are shared as well as buffer pools in each unit. Copying of exported data from said DSS to said NP is eliminated by use of an image buffer pool in said Network Provider (NP) (Which holds pointers to data in memory) and which can export the data to an external I/O port.

Abstract: An Input Interface functions for a Cooperative Service Interface unit and enables data from a network to be placed in a designated input buffer of a Network Provider (NP) which can convey pointers to a Distributed System Service (DSS) unit's image buffer pool for access of the data by said DSS from memory. Sharing of buffer pools and lock pools lessen the overhead and latency which would normally burden such data transfers.