1. An apparatus usable, at least in part, in association with at least one host, the apparatus comprising: circuitry to provide, at least in part, at least one indication that at least one portion of data is available for processing by at least one data processor, the at least one indication to be provided, at least in part, prior to an entirety of the at least one portion of the data being available for the processing by the at least one data processor, the at least one data processor to begin the processing in response, at least in part, to the at least one indication; the circuitry also to provide information in at least one descriptor, the at least one descriptor to be written in at least one memory location, the information to be logically set to indicate, at least in part, whether the at least one descriptor is valid, the at least one descriptor being associated with the at least one portion of the data; wherein, after the at least one descriptor has been processed at least in part, the at least one descriptor is to be modified by resetting the information to indicate, at least in part, that the at least one descriptor is available to be overwritten, at least in part, and after the resetting, the at least one descriptor, as modified, is to overwrite the at least one memory location; and also wherein: determination by the circuitry that the information indicates, at least in part, that the at least one descriptor is no longer valid, is to result, at least in part, in the at least one data processor discontinuing processing of the at least one descriptor and the at least one portion of the data that is associated with the at least one descriptor; and the circuitry is to provide, at least in part, the at least one indication by writing the at least one indication into at least one circular ring data structure entry in a circular ring data structure prior to, at least in part, an initiation, at least in part, by circuitry of writing of the at least one portion of the data, the at least one descriptor, and the information.