Mechanism for reducing data copying overhead in protected memory

Details Mechanism for reducing data copying overhead in protected memory Mechanism for reducing data copying overhead in protected memory

1995-11-06

1998-07-07

Swann, Tod R.

395842, G06F 1314

Patent

active

057781800

ABSTRACT:
A method and an apparatus for reducing data copying overhead associated with protected memory operating systems. In an ATM (Asynchronous Transfer Method) network, the present invention's NIC (network interface circuit) demultiplexes the information in the header of the incoming packet and routes the packet directly to its final destination using the present invention's concept of targeted buffer rings. Thus, instead of having the packet be DMA'd to a buffer in a descriptor ring in the kernel, it may be routed directly to the buffer ring of the destination process.

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