公开(公告)号：US20050050245A1

公开(公告)日：2005-03-03

申请号：US10651887

申请日：2003-08-29

Applicant: Eddie Miller ,  David Duckman ,  Jim Butler ,  Daming Jin ,  John Tang

Inventor： Eddie Miller ,  David Duckman ,  Jim Butler ,  Daming Jin ,  John Tang

IPC: G06F20060101 ,  G06F13/28 ,  G06F13/38

CPC classification number: G06F13/385 ,  G06F13/28

Abstract: A method and system for allowing a host device (e.g., server) to perform programmed direct accesses to peripheral memory (e.g., flash) located on a peripheral device (e.g., HBA), without the assistance of a microprocessor located on the peripheral device. In a preferred embodiment, new host registers are implemented within controller circuitry of the peripheral device, the host registers being configured to be recognized by host software executed by host. The host device reads and writes to the host registers, which causes appropriate controller hardware to access the peripheral nonvolatile memory accordingly. By creating and implementing the new host registers, an enhanced controller is created that allows a host device to directly access peripheral memory, without peripheral processor assistance.

Abstract translation: 一种用于允许主机设备（例如，服务器）在位于外围设备上的微处理器的帮助下对位于外围设备（例如，HBA）上的外围存储器（例如，闪存）进行编程的直接访问的方法和系统。 在优选实施例中，新的主机寄存器被实现在外围设备的控制器电路内，主机寄存器被配置为由主机执行的主机软件识别。 主机设备读取和写入主机寄存器，这导致适当的控制器硬件相应地访问外设非易失性存储器。 通过创建和实现新的主机寄存器，创建一个增强的控制器，允许主机设备直接访问外围存储器，而无需外设处理器的帮助。