Data processing system, method and interconnect fabric supporting destination data tagging
First Claim
1. A method of data processing in a data processing system, said method comprising:
- receiving, at an originating master that originated an operation by issuing a write-type request, a combined response to said write-type request;
the originating master receiving from a snooper responsible for servicing said write-type request a destination tag identifying a route to said snooper; and
in response to receipt of the combined response and the destination tag, the originating master initiating a data transfer of the operation, said data transfer including a data payload and a data tag identifying said route provided within the destination tag.
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Abstract
A data processing system includes a plurality of communication links and a plurality of processing units including a local master processing unit. The local master processing unit includes interconnect logic that couples the processing unit to one or more of the plurality of communication links and an originating master coupled to the interconnect logic. The originating master originates an operation by issuing a write-type request on at least one of the one or more communication links, receives from a snooper in the data processing system a destination tag identifying a route to the snooper, and, responsive to receipt of the combined response and the destination tag, initiates a data transfer including a data payload and a data tag identifying the route provided within the destination tag.
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Citations
7 Claims
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1. A method of data processing in a data processing system, said method comprising:
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receiving, at an originating master that originated an operation by issuing a write-type request, a combined response to said write-type request; the originating master receiving from a snooper responsible for servicing said write-type request a destination tag identifying a route to said snooper; and in response to receipt of the combined response and the destination tag, the originating master initiating a data transfer of the operation, said data transfer including a data payload and a data tag identifying said route provided within the destination tag. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification