Broadcast and unicast communication between non-coherent processors using coherent address operations

摘要

Non-address data is received for transmission on a non-transitory communication medium communicably coupling a plurality of devices, wherein the communication medium includes an address component and a data transport component separate from the address component. At least a portion of the non-address data is inserted into a portion of an address command. An indicator is set in the address command to notify a receiver that the information received in the address command over the address component is not associated with a memory address. The address command containing the non-address data is then sent over the address component of the communication medium.

主权项

1. A computer program product for transmission of non-address data over an address bus of a communication medium, the computer program product comprising:
a machine readable storage medium having machine usable program code embodied therewith, the machine usable program code comprising a machine usable program code configured to: receive non-address data to be transmitted on a non-transitory communication medium communicably coupling an interface to a plurality of devices, wherein the non-transitory communication medium includes an address bus and a data transport bus separate from the address bus; insert a first portion of the non-address data into a portion of a first address command having a plurality of fields during a first phase of communication over the address bus; set a first indicator in a first field of the first address command, the first indicator for notifying a receiver that information received in the first address command over the address bus is not memory address data; set a second field of the first address command to a second indicator to indicate the first phase of communication that the first portion of the non-address data is communicated over the address bus; and transmit the first address command over the address bus.