Boolean and movement accelerator

Details Boolean and movement accelerator Boolean and movement accelerator

1998-06-05

2000-11-07

Ray, Gopal C.

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

712223, 708230, G06F 1300, G06F 700, H03K 1900

Patent

active

06145043&

ABSTRACT:
An application accelerator (AA) unit that in one embodiment is part of an I/O processor (IOP) integrated circuit. The AAU includes logic circuitry for improving the performance of storage applications such as Redundant Array of Inexpensive Disks (RAID). A boolean unit performs operations such as exclusive-or (XOR) on multiple blocks of data to form the image parity block which is written to the redundant disk array. The AAU is associated with a memory-mapped programming interface that allows software executed by a core processor in the IOP to utilize the AAU for accelerating RAID storage applications as well as local memory DMA-type transfers, using the descriptor construct.

REFERENCES:
patent: 5838892 (1998-11-01), Wilson

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