Enhancing a PCI-X split completion transaction by aligning cachelines with an allowable disconnect boundary's ending address

摘要

A method for processing a PCI-X transaction in a bridge is disclosed, wherein data is retrieved from a memory device and is stored in a bridge then delivered to a requesting device. The method may comprise the acts of allocating a buffer in the bridge for the PCI-X transaction, retrieving data from a memory device, wherein the data comprises a plurality of cachelines, storing the plurality of cachelines in the buffer, wherein the plurality of cachelines are tracked and marked for delivery as the plurality of cachelines are received in the buffer, and delivering the plurality of cachelines to the requesting device in address order, the plurality of cachelines transmitted to the requesting device when one of the plurality of cachelines in the buffer aligns to an ending address of an allowable disconnect boundary (ADB) and the remaining cachelines are in address order.