公开(公告)号：US07945699B2

公开(公告)日：2011-05-17

申请号：US12325941

申请日：2008-12-01

申请人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

发明人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

IPC分类号： G06F15/16 ,  G06F12/00

CPC分类号： H04L49/9063 ,  G06F5/10 ,  H04L29/06 ,  H04L29/12009 ,  H04L29/12018 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9042 ,  H04L61/10 ,  H04L67/10 ,  H04L67/325 ,  H04L67/327 ,  H04L67/34 ,  H04L69/08 ,  H04L69/12 ,  H04L69/16 ,  H04L69/161 ,  H04L69/162 ,  H04L69/163 ,  H04L69/166 ,  H04L69/22 ,  H04L69/32 ,  H04Q3/0029 ,  H04Q2213/13093 ,  H04Q2213/13103 ,  H04Q2213/13204 ,  H04Q2213/13299 ,  H04Q2213/1332 ,  H04Q2213/13345

摘要： A Network Interface device (NI device) coupled to a host computer receives a multi-packet message from a network (for example, the Internet) and DMAs the data portions of the various packets directly into a destination in application memory on the host computer. The address of the destination is determined by supplying a first part of the first packet to an application program such that the application program returns the address of the destination. The address is supplied by the host computer to the NI device so that the NI device can DMA the data portions of the various packets directly into the destination. In some embodiments the NI device is an expansion card added to the host computer, whereas in other embodiments the NI device is a part of the host computer.

摘要翻译： 耦合到主计算机的网络接口设备（NI设备）从网络（例如，因特网）接收多分组消息，并且将各种分组的数据部分直接DMA到主计算机上的应用存储器中的目的地。 通过将第一分组的第一部分提供给应用程序来确定目的地的地址，使得应用程序返回目的地的地址。 地址由主机提供给NI设备，以便NI设备可以将各种数据包的数据部分直接DMA到目的地。 在一些实施例中，NI设备是添加到主计算机的扩展卡，而在其他实施例中，NI设备是主计算机的一部分。

公开(公告)号：US07089326B2

公开(公告)日：2006-08-08

申请号：US10093042

申请日：2002-05-06

申请人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

发明人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

IPC分类号： G06F15/173

CPC分类号： H04L69/16 ,  H04L29/06 ,  H04L49/90 ,  H04L49/901 ,  H04L67/325 ,  H04L67/327 ,  H04L69/161 ,  H04L69/163 ,  H04L69/166 ,  H04L69/22

摘要： A network interface device provides a fast-path that avoids most host TCP and IP protocol processing for most messages. The host retains a fallback slow-path processing capability. In one embodiment, generation of a response to a TCP/IP packet received onto the network interface device is accelerated by determining the TCP and IP source and destination information from the incoming packet, retrieving an appropriate template header, using a finite state machine to fill in the TCP and IP fields in the template header without sequential TCP and IP protocol processing, combining the filled-in template header with a data payload to form a packet, and then outputting the packet from the network interface device by pushing a pointer to the packet onto a transmit queue. A transmit sequencer retrieves the pointer from the transmit queue and causes the corresponding packet to be output from the network interface device.

公开(公告)号：US06434620B1

公开(公告)日：2002-08-13

申请号：US09384792

申请日：1999-08-27

申请人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

发明人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

IPC分类号： G06F1516

CPC分类号： H04L47/193 ,  G06F13/28 ,  G06F13/4022 ,  G06F13/4221 ,  H04L29/06 ,  H04L29/0653 ,  H04L29/12009 ,  H04L29/12018 ,  H04L45/66 ,  H04L45/745 ,  H04L47/10 ,  H04L47/36 ,  H04L47/50 ,  H04L47/6225 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9021 ,  H04L49/9042 ,  H04L49/9052 ,  H04L49/9063 ,  H04L49/9068 ,  H04L49/9073 ,  H04L49/9094 ,  H04L61/10 ,  H04L67/10 ,  H04L67/325 ,  H04L67/327 ,  H04L67/34 ,  H04L69/08 ,  H04L69/12 ,  H04L69/16 ,  H04L69/161 ,  H04L69/162 ,  H04L69/163 ,  H04L69/166 ,  H04L69/22 ,  H04L69/32

摘要： An intelligent network interface card (INIC) or communication processing device (CPD) works with a host computer for data communication. The device provides a fast-path that avoids protocol processing for most messages, greatly accelerating data transfer and offloading time-intensive processing tasks from the host CPU. The host retains a fallback processing capability for messages that do not fit fast-path criteria, with the device providing assistance such as validation even for slow-path messages, and messages being selected for either fast-path or slow-path processing. A context for a connection is defined that allows the device to move data, free of headers, directly to or from a destination or source in the host. The context can be passed back to the host for message processing by the host. The device contains specialized hardware circuits that are much faster at their specific tasks than a general purpose CPU. A preferred embodiment includes a trio of pipelined processors devoted to transmit, receive and utility processing, providing full duplex communication for four Fast Ethernet nodes.

摘要翻译： 智能网络接口卡（INIC）或通信处理设备（CPD）与主机进行数据通信。 该设备提供了一条快速路径，避免了大多数消息的协议处理，大大加速了数据传输，并从主机CPU卸载了耗时的处理任务。 主机保留对不符合快速路径标准的消息的后备处理能力，该设备提供诸如即使对于慢路径消息进行验证的协助，以及为快速路径或慢速路径处理选择的消息。 定义了一个连接的上下文，允许设备将头文件的数据直接移动到主机中的目的地或源代码。 上下文可以传回主机以进行主机的消息处理。 该设备包含专门的硬件电路，其特定任务比通用CPU快得多。 优选实施例包括专用于发送，接收和公用处理的三路流水线处理器，为四个快速以太网节点提供全双工通信。

公开(公告)号：US08539112B2

公开(公告)日：2013-09-17

申请号：US13108729

申请日：2011-05-16

申请人： Peter K. Craft ,  Clive M. Philbrick ,  Laurence B. Boucher ,  David A. Higgen ,  Stephen E. J. Blightman ,  Daryl D. Starr

发明人： Peter K. Craft ,  Clive M. Philbrick ,  Laurence B. Boucher ,  David A. Higgen ,  Stephen E. J. Blightman ,  Daryl D. Starr

IPC分类号： H04L29/06

CPC分类号： G06F5/10 ,  H04L29/12009 ,  H04L29/12018 ,  H04L49/901 ,  H04L49/9042 ,  H04L61/10 ,  H04L67/145 ,  H04L67/325 ,  H04L67/327 ,  H04L67/34 ,  H04L69/161 ,  H04L69/162 ,  H04L69/163 ,  H04L69/166 ,  H04L69/22 ,  H04L69/327 ,  H04Q3/0029 ,  H04Q2213/13093 ,  H04Q2213/13103 ,  H04Q2213/13204 ,  H04Q2213/13216 ,  H04Q2213/13299 ,  H04Q2213/1332 ,  H04Q2213/13345

摘要： A host CPU runs a network protocol processing stack that provides instructions not only to process network messages but also to allocate processing of certain network messages to a specialized network communication device, offloading some of the most time consuming protocol processing from the host CPU to the network communication device. By allocating common and time consuming network processes to the device, while retaining the ability to handle less time intensive and more varied processing on the host stack, the network communication device can be relatively simple and cost effective. The host CPU, operating according to instructions from the stack, and the network communication device together determine whether and to what extent a given message is processed by the host CPU or by the network communication device.

摘要翻译： 主机CPU运行网络协议处理堆栈，其不仅提供处理网络消息的指令，而且还将特定网络消息的处理分配给专用网络通信设备，从主机CPU卸载一些最耗时的协议处理到网络 通讯装置 通过向设备分配通用和耗时的网络进程，同时保留在主机堆栈上处理较少时间和更多变化的处理的能力，网络通信设备可以相对简单且成本有效。 根据来自堆栈的指令操作的主机CPU和网络通信设备一起确定主机CPU或由网络通信设备处理给定消息是否以及在何种程度上。

公开(公告)号：US07853723B2

公开(公告)日：2010-12-14

申请号：US11701705

申请日：2007-02-02

申请人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

发明人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

IPC分类号： G06F15/16

CPC分类号： H04L29/06 ,  H04L69/16 ,  H04L69/161 ,  H04L69/162 ,  H04L69/163 ,  H04L69/166 ,  H04L69/32

摘要： A system for protocol processing in a computer network has a TCP/IP Offload Network Interface Device (TONID) associated with a host computer. The TONID provides a fast-path that avoids protocol processing for most large multi-packet messages, greatly accelerating data communication. The TONID also assists the host for those message packets that are chosen for processing by host software layers. A communication control block for a message is defined that allows DMA controllers of the TONID to move data, free of headers, directly to or from a destination or source in the host. The context is stored in the TONID as a communication control block (CCB) that can be passed back to the host for message processing by the host. The TONID contains specialized hardware circuits that are much faster at their specific tasks than a general purpose CPU. A preferred embodiment includes a trio of pipelined processors with separate processors devoted to transmit, receive and management processing, with full duplex communication for four fast Ethernet nodes.

摘要翻译： 用于计算机网络中的协议处理的系统具有与主计算机相关联的TCP / IP卸载网络接口设备（TONID）。 TONID提供了一种快速路径，可避免大多数大数据包消息的协议处理，大大加速了数据通信。 TONID还协助主机为主机软件层进行处理的那些消息包。 定义了消息的通信控制块，允许TONID的DMA控制器将头文件中的数据直接移动到主机中的目的地或源代码。 上下文作为通信控制块（CCB）存储在TONID中，该控制块可以被传回主机以进行主机的消息处理。 TONID包含专门的硬件电路，其特定任务比通用CPU快得多。 优选实施例包括三个流水线处理器，其具有专用于发送，接收和管理处理的独立处理器，具有用于四个快速以太网节点的全双工通信。

公开(公告)号：US07502869B2

公开(公告)日：2009-03-10

申请号：US10724588

申请日：2003-11-28

申请人： Laurence B. Boucher ,  Clive M. Philbrick ,  Daryl D. Starr ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen

发明人： Laurence B. Boucher ,  Clive M. Philbrick ,  Daryl D. Starr ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen

IPC分类号： G06F15/16 ,  G06F3/00 ,  G06F13/00 ,  H04Q7/00

CPC分类号： H04L67/325 ,  G06F5/10 ,  H04L29/06 ,  H04L45/00 ,  H04L45/245 ,  H04L49/90 ,  H04L49/9063 ,  H04L49/9073 ,  H04L67/327 ,  H04L69/08 ,  H04L69/12 ,  H04L69/16 ,  H04L69/161 ,  H04L69/162 ,  H04L69/163 ,  H04L69/165 ,  H04L69/166 ,  H04L69/168 ,  H04L69/22 ,  H04L69/32 ,  H04Q3/0029 ,  H04Q2213/13093 ,  H04Q2213/13103 ,  H04Q2213/13204 ,  H04Q2213/13299 ,  H04Q2213/1332 ,  H04Q2213/13345

摘要： A system for protocol processing in a computer network has an intelligent network interface card (INIC) or communication processing device (CPD) associated with a host computer. The CPD provides a fast-path that avoids protocol processing for most large multipacket messages, greatly accelerating data communication. The CPD also assists the host CPU for those message packets that are chosen for processing by host software layers. A context for a message is defined that allows DMA controllers of the CPD to move data, free of headers, directly to or from a destination or source in the host. The context can be stored as a communication control block (CCB) that is controlled by either the CPD or by the host CPU. The CPD contains specialized hardware circuits that process media access control, network and transport layer headers of a packet received from the network, saving the host CPU from that processing for fast-path messages.

摘要翻译： 计算机网络中用于协议处理的系统具有与主计算机相关联的智能网络接口卡（INIC）或通信处理设备（CPD）。 CPD提供了一种快速路径，避免了大多数大型多包消息的协议处理，大大加速了数据通信。 CPD还协助主机CPU处理由主机软件层进行处理的那些消息包。 消息的上下文被定义为允许CPD的DMA控制器将数据（没有头部）直接移动到主机中的目标或源的目标或源。 上下文可以存储为由CPD或主机CPU控制的通信控制块（CCB）。 CPD包含专门的硬件电路，处理从网络接收到的数据包的媒体访问控制，网络和传输层报头，保存主机CPU免受快速路径消息的处理。

公开(公告)号：US07461160B2

公开(公告)日：2008-12-02

申请号：US10881271

申请日：2004-06-29

申请人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

发明人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

IPC分类号： G06F15/16 ,  G06F12/00

CPC分类号： H04L49/9063 ,  G06F5/10 ,  H04L29/06 ,  H04L29/12009 ,  H04L29/12018 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9042 ,  H04L61/10 ,  H04L67/10 ,  H04L67/325 ,  H04L67/327 ,  H04L67/34 ,  H04L69/08 ,  H04L69/12 ,  H04L69/16 ,  H04L69/161 ,  H04L69/162 ,  H04L69/163 ,  H04L69/166 ,  H04L69/22 ,  H04L69/32 ,  H04Q3/0029 ,  H04Q2213/13093 ,  H04Q2213/13103 ,  H04Q2213/13204 ,  H04Q2213/13299 ,  H04Q2213/1332 ,  H04Q2213/13345

摘要： A Network Interface device (NI device) coupled to a host computer receives a multi-packet message from a network (for example, the Internet) and DMAs the data portions of the various packets directly into a destination in application memory on the host computer. The address of the destination is determined by supplying a first part of the first packet to an application program such that the application program returns the address of the destination. The address is supplied by the host computer to the NI device so that the NI device can DMA the data portions of the various packets directly into the destination. In some embodiments the NI device is an expansion card added to the host computer, whereas in other embodiments the NI device is a part of the host computer.

摘要翻译： 耦合到主计算机的网络接口设备（NI设备）从网络（例如，因特网）接收多分组消息，并且将各种分组的数据部分直接DMA到主计算机上的应用存储器中的目的地。 通过将第一分组的第一部分提供给应用程序来确定目的地的地址，使得应用程序返回目的地的地址。 地址由主机提供给NI设备，以便NI设备可以将各种数据包的数据部分直接DMA到目的地。 在一些实施例中，NI设备是添加到主计算机的扩展卡，而在其他实施例中，NI设备是主计算机的一部分。

公开(公告)号：US07337241B2

公开(公告)日：2008-02-26

申请号：US10260878

申请日：2002-09-27

申请人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

发明人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

IPC分类号： G06F15/16

CPC分类号： H04L29/06 ,  H04L69/10 ,  H04L69/16 ,  H04L69/161 ,  H04L69/22 ,  H04L69/32

摘要： A system for protocol processing in a computer network has an intelligent network interface card (INIC) or communication processing device (CPD) associated with a host computer. The INIC provides a fast-path that avoids protocol processing for most large multi-packet messages, greatly accelerating data communication. The INIC also assists the host for those message packets that are chosen for processing by host software layers. A communication control block for a message is defined that allows DMA controllers of the INIC to move data, free of headers, directly to or from a destination or source in the host. The context is stored in the INIC as a communication control block (CCB) that can be passed back to the host for message processing by the host. The INIC contains specialized hardware circuits that are much faster at their specific tasks than a general purpose CPU. A preferred embodiment includes a trio of pipelined processors with separate processors devoted to transmit, receive and management processing, with full duplex communication for four fast Ethernet nodes.

摘要翻译： 计算机网络中用于协议处理的系统具有与主计算机相关联的智能网络接口卡（INIC）或通信处理设备（CPD）。 INIC提供了一种快速路径，避免了大多数大数据包消息的协议处理，大大加速了数据通信。 INIC还协助主机处理由主机软件层进行处理的消息包。 定义了消息的通信控制块，允许INIC的DMA控制器将头文件的数据直接移动到主机中的目的地或源的目的地或来源。 上下文作为通信控制块（CCB）存储在INIC中，该控制块可以被传送回主机以进行主机的消息处理。 INIC包含专门的硬件电路，其特定任务比通用CPU快得多。 优选实施例包括三个流水线处理器，其具有专用于发送，接收和管理处理的独立处理器，具有用于四个快速以太网节点的全双工通信。

公开(公告)号：US07167927B2

公开(公告)日：2007-01-23

申请号：US10085802

申请日：2002-02-26

申请人： Clive M. Philbrick ,  Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Daryl D. Starr

发明人： Clive M. Philbrick ,  Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Daryl D. Starr

IPC分类号： G06F15/16

CPC分类号： H04L67/325 ,  H04L29/06 ,  H04L49/90 ,  H04L49/901 ,  H04L67/327 ,  H04L69/08 ,  H04L69/12 ,  H04L69/16 ,  H04L69/161 ,  H04L69/163 ,  H04L69/166 ,  H04L69/22 ,  H04L69/32

摘要： A network interface device has a fast-path ACK generating and transmitting mechanism. ACKs are generated using a finite state machine (FSM). The FSM retrieves a template header and fills in TCP and IP fields in the template. The FSM is not a stack, but rather fills in the TCP and IP fields without performing transport layer processing and network layer processing sequentially as separate tasks. The filled-in template is placed into a buffer and a pointer to the buffer is pushed onto a high-priority transmit queue. Pointers for ordinary data packets are pushed onto a low-priority transmit queue. A transmit sequencer outputs a packet by popping a transmit queue, obtaining a pointer, and causing information pointed to by the pointer to be output from the network interface device as a packet. The sequencer pops the high-priority queue in preference to the low-priority queue, thereby accelerating ACK generation and transmission.

公开(公告)号：US06965941B2

公开(公告)日：2005-11-15

申请号：US10023240

申请日：2001-12-17

申请人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

发明人： Laurence B. Boucher ,  Stephen E. J. Blightman ,  Peter K. Craft ,  David A. Higgen ,  Clive M. Philbrick ,  Daryl D. Starr

IPC分类号： G06F5/10 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04L29/12 ,  H04Q3/00 ,  G06F15/16

CPC分类号： H04L69/169 ,  G06F5/10 ,  H04L29/06 ,  H04L29/12009 ,  H04L29/12018 ,  H04L45/00 ,  H04L45/245 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9063 ,  H04L49/9094 ,  H04L61/10 ,  H04L61/25 ,  H04L67/10 ,  H04L67/325 ,  H04L67/327 ,  H04L67/34 ,  H04L69/08 ,  H04L69/12 ,  H04L69/16 ,  H04L69/161 ,  H04L69/162 ,  H04L69/163 ,  H04L69/165 ,  H04L69/166 ,  H04L69/168 ,  H04L69/18 ,  H04L69/22 ,  H04L69/32 ,  H04Q3/0029 ,  H04Q2213/13093 ,  H04Q2213/13103 ,  H04Q2213/13204 ,  H04Q2213/13299 ,  H04Q2213/1332 ,  H04Q2213/13345

摘要： A network interface device provides a fast-path that avoids most host TCP and IP protocol processing for most messages. The host retains a fallback slow-path processing capability. In one embodiment, generation of a response to a TCP/IP packet received onto the network interface device is accelerated by determining the TCP and IP source and destination information from the incoming packet, retrieving an appropriate template header, using a finite state machine to fill in the TCP and IP fields in the template header without sequential TCP and IP protocol processing, combining the filled-in template header with a data payload to form a packet, and then outputting the packet from the network interface device by pushing a pointer to the packet onto a transmit queue. A transmit sequencer retrieves the pointer from the transmit queue and causes the corresponding packet to be output from the network interface device.

摘要翻译： 网络接口设备提供快速路径，避免大多数主机TCP和IP协议处理大多数消息。 主机保留后备慢路处理能力。 在一个实施例中，通过从传入分组确定TCP和IP源和目的地信息，使用有限状态机来填充适当的模板头，来加速对接收到网络接口设备上的TCP / IP分组的响应的产生 在没有顺序TCP和IP协议处理的模板报头中的TCP和IP字段中，将填充的模板报头与数据有效载荷组合以形成分组，然后通过将指针推送到网络接口设备来输出分组 分组到传输队列。 发送定序器从发送队列检索指针，并使相应的数据包从网络接口设备输出。