公开(公告)号：EP0551191A1

公开(公告)日：1993-07-14

申请号：EP93300076.2

申请日：1993-01-06

申请人： DIGITAL EQUIPMENT CORPORATION

发明人： Chmielecki, Stanley, Jr. ,  Itkowsky, Frank A., Jr. ,  Koning, G Paul ,  Washabaugh, Douglas M ,  Ramakrishnan, Kadangode K

IPC分类号： G06F5/06 ,  G06F13/12

CPC分类号： G06F5/12 ,  G06F13/128 ,  G06F13/24 ,  G06F2205/064 ,  G06F2205/126

摘要： An apparatus and method for transferring data in a data processing system to and from a host system (11). A communication adapter (10) or input/output controller device is provided in which queues (36) are utilized to transfer information between the adapter or controller and the host system (11). In order to minimize the amount of time a system or I/O bus or network is used during transfer of data between the adapter or controller and the host system, and reduce the amount of work that must be performed by the host system (11), the number of interrupts by the adapter (10) or controller of the host system is limited to the minimum amount necessary by using an interrupt arm mechanism (44) and by keeping track of completion indices stored in the host system.

摘要翻译： 用于在数据处理系统和从主机系统（11）传递环数据的装置和方法。 一种通信适配器（10）或输入/输出控制器装置是在其中的队列（36）被用来传输适配器或控制器和主机系统（11）之间的信息提供。 为了最小化的时间的系统或I / O总线或网络适配器或控制器和主机系统之间的数据传送期间使用的量，以及减少的工作量并必须由主机系统执行（11） ，中断通过所述适配器（10）或主机系统的控制器的数量是通过使用必要中断臂机构（44）和通过跟踪存储在主机系统完成索引限于最小量。