Method and controller for requesting queue arbitration and coalescing memory access commands

摘要

Controller and method for requesting arbitration of a queue. The controller comprises a coalescing engine for determining a number of commands in a queue and requesting arbitration of the queue when a coalescing condition is satisfied. The method comprises determining the number of commands in a queue and requesting arbitration of the queue when a coalescing condition is satisfied.

主权项

1. A method for requesting arbitration of a selected queue from a plurality of queues on a host in a system, the system comprising a controller, the method comprising:
receiving memory access commands in a selected queue of the plurality of queues, the memory access commands being intended for processing by the controller; coalescing the memory access commands in the selected queue until a threshold number of commands has been coalesced, the threshold number of commands being greater than one and equal to or less than a maximum number of commands that can be processed by the controller in an operation; inhibiting arbitration of the selected queue while the number of coalesced commands is below the threshold number of commands; and in response to the threshold number of commands having been coalesced, requesting arbitration of the selected queue.