摘要:
A scheduler provided according to an aspect of the present invention provides higher priority for data units in a low priority queue upon occurrence of a starvation condition, and to packets in a high priority queue otherwise. The scheduler permits retransmission of a data unit in the lower priority queue when in the starvation condition, but clears the starvation condition when the data unit is retransmitted a pre-specified number of times. As a result, the data units in the higher priority queue would continue to be processed, thereby avoiding a deadlock at least in certain situations.
摘要:
A digital processing system employing multiple arbiters, all designed to allocate a resource to a same entity in response to a same condition. In an embodiment, the entities needing the resource may send a request to all the arbiters, and the specific entity to which the resource is allocated, receives indication of the allocation from a closest one of the arbiters. As a result, the latency in receipt of indication of allocation may be reduced. The features are described in the context of a bus as a resource.
摘要:
A digital processing system employing multiple arbiters, all designed to allocate a resource to a same entity in response to a same condition. In an embodiment, the entities needing the resource may send a request to all the arbiters, and the specific entity to which the resource is allocated, receives indication of the allocation from a closest one of the arbiters. As a result, the latency in receipt of indication of allocation may be reduced. The features are described in the context of a bus as a resource.
摘要:
A scheduler provided according to an aspect of the present invention provides higher priority for data units in a low priority queue upon occurrence of a starvation condition, and to packets in a high priority queue otherwise. The scheduler permits retransmission of a data unit in the lower priority queue when in the starvation condition, but clears the starvation condition when the data unit is retransmitted a pre-specified number of times. As a result, the data units in the higher priority queue would continue to be processed, thereby avoiding a deadlock at least in certain situations.