公开(公告)号：US20090055831A1

公开(公告)日：2009-02-26

申请号：US11844434

申请日：2007-08-24

申请人： Ellen M. Bauman ,  Shawn M. Lambeth ,  Timothy J. Schimke ,  Lee A. Sendelbach

发明人： Ellen M. Bauman ,  Shawn M. Lambeth ,  Timothy J. Schimke ,  Lee A. Sendelbach

IPC分类号： G06F9/455

CPC分类号： G06F9/5077

摘要： In an embodiment, a network adapter has a physical port that is multiplexed to multiple logical ports, which have default queues. The adapter also has other queues, which can be allocated to any logical port, and resources, which map tuples to queues. The tuples are derived from data in packets received via the physical port. The adapter determines which queue should receive a packet based on the received tuple and the resources. If the received tuple matches a resource, then the adapter stores the packet to the corresponding queue; otherwise, the adapter stores the packet to the default queue for the logical port specified by the packet. In response to receiving an allocation request from a requesting partition, if no resources are idle, a resource is selected for preemption that is already allocated to a selected partition. The selected resource is then allocated to the requesting partition.

摘要翻译： 在一个实施例中，网络适配器具有被复用到具有默认队列的多个逻辑端口的物理端口。 适配器还具有可以分配给任何逻辑端口的其他队列，以及将元组映射到队列的资源。 元组是通过物理端口接收的数据包中的数据导出的。 适配器根据接收的元组和资源确定哪个队列应该接收数据包。 如果接收到的元组与资源匹配，则适配器将数据包存储到相应的队列中; 否则，适配器将数据包存储到由数据包指定的逻辑端口的默认队列。 响应于从请求分区接收分配请求，如果没有资源空闲，则选择已经分配给所选分区的抢占资源。 然后将所选择的资源分配给请求分区。

公开(公告)号：US6101557A

公开(公告)日：2000-08-08

申请号：US87637

申请日：1998-05-29

申请人： Paul Edward Movall ,  Charles Scott Graham ,  Shawn M. Lambeth ,  Daniel Frank Moertl

发明人： Paul Edward Movall ,  Charles Scott Graham ,  Shawn M. Lambeth ,  Daniel Frank Moertl

IPC分类号： G06F13/14 ,  G06F13/36 ,  G06F13/40 ,  G06F13/00

CPC分类号： G06F13/4068

摘要： A method, device and system for configuring multifunction I/O device adapters connected to a bus utilizes a slot owner configuration register to identify the ownership of each function slot within the multi-function I/O device adapter. An intelligent I/O device adapter or controller within the multi-function I/O device adapter may control other I/O adapters located in other function slots through the information provided in the slot owner configuration register. Ownership of each slot is initially set, upon power up, to the host unit or processor complex. Thereafter, each intelligent I/O device adapter or controller determines the presence of adapters at other function slots to be controlled, and records this information in the slot owner configuration register.

摘要翻译： 用于配置连接到总线的多功能I / O设备适配器的方法，设备和系统利用插槽所有者配置寄存器来识别多功能I / O设备适配器内的每个功能插槽的所有权。 多功能I / O设备适配器中的智能I / O设备适配器或控制器可以通过插槽所有者配置寄存器中提供的信息来控制位于其他功能插槽中的其他I / O适配器。 每个插槽的所有权在上电时初始设置为主机单元或处理器组合。 此后，每个智能I / O设备适配器或控制器确定在要控制的其他功能插槽中存在适配器，并将该信息记录在插槽所有者配置寄存器中。

公开(公告)号：US5016160A

公开(公告)日：1991-05-14

申请号：US284958

申请日：1988-12-15

申请人： Shawn M. Lambeth ,  Lee P. Prissel ,  William D. Tarara

发明人： Shawn M. Lambeth ,  Lee P. Prissel ,  William D. Tarara

IPC分类号： G06F13/12 ,  G06F13/28 ,  G06F13/36

CPC分类号： G06F13/28

摘要： A computer system has a system memory, a central processing unit, an input/output controller, and at least one device. When the central processing unit wants data transferred to/from system memory from/to the device, it sends Indirect DAta Address Word (IDAW) commands to the I/O controller. Instead of performing a direct memory access (DMA) operation for each IDAW command, the I/O controller starts an IDAW look ahead procedure. In this procedure, the I/O controller checks to see if the system addresses of the system memory specified in the IDAW commands are contiguous. If so, the procedure combines IDAWs that specify contiguous system addresses up to the maximum DMA transfer length. Using this procedure, the number of DMA operations sent to the system memory is minimized, and the computer system has more efficient data transfer operations.