Routing direct memory access requests using doorbell addresses

Details Routing direct memory access requests using doorbell addresses Routing direct memory access requests using doorbell addresses

2005-12-01

2009-08-11

Patel, Niketa I (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Direct memory accessing

C710S004000, C710S023000, C709S212000

Reexamination Certificate

active

07574536

ABSTRACT:
An infrastructure element can receive a first DMA request including a first address and the data, generate a meta request that comprises a resource key value and a doorbell address, and transmit the meta request via the infrastructure using the doorbell address. A remote DMA adapter can receive the meta request at the doorbell address and generate a remote direct memory access request message using the resource key, the first address and the data from the received meta request.

REFERENCES:
patent: 6598144 (2003-07-01), Bailey et al.
patent: 6742075 (2004-05-01), Bailey et al.

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