IMPLEMENTING HARDWARE AUTO DEVICE OPERATIONS INITIATOR

摘要

A method and controller for implementing hardware auto device op initiator in a data storage system, and a design structure on which a subject controller circuit resides are provided. The controller includes an inline hardware engine receiving host commands, and assessing a received command for starting without firmware involvement. The inline hardware engine builds one or more chains of hardware command blocks to perform the received command and starts executing the chain or chains for the received command.

主权项

1. A controller for implementing hardware auto device op initiator in a computer system comprising:
an inline hardware engine for receiving host commands; said inline hardware engine assessing a received command using enable settings and starting without firmware involvement; said inline hardware engine building one or more chains of hardware command blocks to perform the received command; and said inline hardware engine starting executing the one or more chains for the received command and executing the received command with firmware being involved only once with a number of interactions between hardware and firmware being reduced.