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1. 发明授权

US08959095B2 Hashing algorithm for network receive filtering 有权
标题翻译：用于网络接收过滤的哈希算法
公开(公告)号：US08959095B2
公开(公告)日：2015-02-17
申请号：US13162421
申请日：2011-06-16
申请人： Steve L. Pope , Derek Roberts , David J. Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
发明人： Steve L. Pope , Derek Roberts , David J. Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
IPC分类号： G06F17/30 , H04L12/747 , H04L12/741 , H04L12/861 , H04L29/06 , H04L12/851 , H04L12/863
CPC分类号： G06F17/30867 , G06F17/30864 , H04L45/742 , H04L45/745 , H04L47/2441 , H04L47/621 , H04L49/90 , H04L67/10 , H04L69/16 , H04L69/161 , H04L69/162 , H04L69/163 , H04L69/164 , H04L69/22 , Y10S707/922
摘要： Roughly described, a network interface device is assigned a maximum extent-of-search. A hash function is applied to the header information of each incoming packet, to generate a hash code for the packet. The hash code designates a particular subset of the table within which the particular header information should be found, and an iterative search is made within that subset. If the search locates a matching entry before the search limit is exceeded, then the incoming data packet is delivered to the receive queue identified in the matching entry. But if the search reaches the search limit before a matching entry is located, then device delivers the packet to a default queue, such as a kernel queue, in the host computer system. The kernel is then responsible for delivering the packet to the correct endpoint.
摘要翻译：大致描述了网络接口设备被分配最大的搜索范围。散列函数被应用于每个输入分组的报头信息，以产生分组的哈希码。哈希代码指定在其中应当找到特定头部信息的表的特定子集，并且在该子集内进行迭代搜索。如果搜索在超出搜索限制之前找到匹配的条目，则传入数据包将被传递到匹配条目中标识的接收队列。但是，如果在找到匹配的条目之前搜索达到搜索限制，则设备会将数据包传递到主机系统中的默认队列（如内核队列）。然后，内核负责将数据包传递到正确的端点。

2. 发明申请

US20140059221A1 PACKET VALIDATION IN VIRTUAL NETWORK INTERFACE ARCHITECTURE 有权
标题翻译：虚拟网络接口架构中的分组验证
公开(公告)号：US20140059221A1
公开(公告)日：2014-02-27
申请号：US13765579
申请日：2013-02-12
申请人： Steve L. Pope , David J. Riddoch , Ching Yu , Derek Roberts
发明人： Steve L. Pope , David J. Riddoch , Ching Yu , Derek Roberts
IPC分类号： H04L29/06 , H04L12/863
CPC分类号： H04L63/10 , H04L47/50 , H04L49/90 , H04L49/901 , H04L49/9031 , H04L49/9063
摘要： Roughly described, a network interface device receiving data packets from a computing device for transmission onto a network, the data packets having a certain characteristic, transmits the packet only if the sending queue has authority to send packets having that characteristic. The data packet characteristics can include transport protocol number, source and destination port numbers, source and destination IP addresses, for example. Authorizations can be programmed into the NIC by a kernel routine upon establishment of the transmit queue, based on the privilege level of the process for which the queue is being established. In this way, a user process can use an untrusted user-level protocol stack to initiate data transmission onto the network, while the NIC protects the remainder of the system or network from certain kinds of compromise.
摘要翻译：大体上描述了一种从计算设备接收数据包以便传输到网络上的网络接口设备，具有一定特性的数据分组仅在发送队列具有发送具有该特性的分组的权限时发送分组。数据包特征可以包括传输协议号，源和目的端口号，源和目的IP地址。基于建立队列的进程的权限级别，可以通过内核例程在建立传输队列时将授权编程到NIC中。以这种方式，用户进程可以使用不受信任的用户级协议栈来发起到网络上的数据传输，而NIC保护系统或网络的其余部分免受某些种类的折中。

3. 发明授权

US08930557B2 Data transmission with constant data rate 有权
标题翻译：数据传输速率恒定
公开(公告)号：US08930557B2
公开(公告)日：2015-01-06
申请号：US10548121
申请日：2004-03-03
申请人： Steve L. Pope , Derek Roberts , David J. Riddoch , David Clarke
发明人： Steve L. Pope , Derek Roberts , David J. Riddoch , David Clarke
IPC分类号： G06F15/16 , H04L12/801
CPC分类号： H04L47/10
摘要： A method for forming data received from a data source into frames for transmission over a data link according to a protocol in which data is carried as data frames and in which once transmission of the data frame begun the entirety of the data frame must be transmitted at no less than a pre-set data rate, the method comprising: including in a frame traffic data formed from data received for transmission from the data source, and if insufficient data received for transmission from the data source is available to transmit the frame at the pre-set data rate, including in the frame padding data, the padding data being of a predetermined format distinguishable from the traffic data.
摘要翻译：一种用于形成从数据源接收的数据到根据数据作为数据帧传送数据的协议的数据链路传输的数据帧的方法，并且其中数据帧的一次发送开始整个数据帧必须在不少于预设的数据速率，该方法包括：在帧中包括由从数据源接收的数据形成的业务数据，以及如果从数据源发送的数据不足可用于在包括在帧填充数据中的预设数据速率，填充数据是与业务数据区分开的预定格式。

4. 发明申请

US20110173514A1 DATA PROTOCOL 有权
标题翻译：数据协议
公开(公告)号：US20110173514A1
公开(公告)日：2011-07-14
申请号：US13053112
申请日：2011-03-21
申请人： Steve L. Pope , Derek Roberts , David Riddoch , David Clarke
发明人： Steve L. Pope , Derek Roberts , David Riddoch , David Clarke
IPC分类号： G06F11/14 , H03M13/09 , G06F11/08
CPC分类号： H04L1/0061 , H04L1/007 , H04L1/0078
摘要： A method of transmitting data according to a data transmission protocol wherein the data is transmitted as a plurality of data frames and each data frame includes an error checking field comprising at least two sub-fields, the data of the first sub-field being formed by a first error checking method performed on data of the frame and the data of the second sub-field being formed by a second error checking method performed on the said data of the frame, the first and second methods being such that the data of the first sub-field has different error checking properties from those of the data of the second sub-field.
摘要翻译：一种根据数据传输协议发送数据的方法，其中数据作为多个数据帧发送，每个数据帧包括包括至少两个子场的错误检查字段，第一子字段的数据由对所述帧的数据执行的第一错误检查方法和通过对所述帧的所述数据执行的第二错误检查方法形成的所述第二子字段的数据，所述第一和第二方法使得所述第一子字段具有与第二子字段的数据不同的错误检查属性。

5. 发明授权

US07496699B2 DMA descriptor queue read and cache write pointer arrangement 有权
标题翻译： DMA描述符队列读取和缓存写入指针排列
公开(公告)号：US07496699B2
公开(公告)日：2009-02-24
申请号：US11156228
申请日：2005-06-17
申请人： Steve L. Pope , Derek Roberts , David Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
发明人： Steve L. Pope , Derek Roberts , David Riddoch , Ching Yu , John Mingyung Chiang , Der-Ren Chu
IPC分类号： G06F3/00 , G06F13/28 , G06F12/00
CPC分类号： H04L49/901 , G06F13/28 , G06F13/385 , H04L49/90
摘要： Method and apparatus for retrieving buffer descriptors from a host memory for use by a peripheral device. In an embodiment, a peripheral device such as a NIC includes a plurality of buffer descriptor caches each corresponding to a respective one of a plurality of host memory descriptor queues, and a plurality of queue descriptors each corresponding to a respective one of the host memory descriptor queues. Each of the queue descriptors includes a host memory read address pointer for the corresponding descriptor queue, and this same read pointer is used to derive algorithmically the descriptor cache write addresses at which to write buffer descriptors retrieved from the corresponding host memory descriptor queue.
摘要翻译：用于从主机存储器检索缓冲器描述符以供外围设备使用的方法和装置。在一个实施例中，诸如NIC的外围设备包括多个缓冲区描述符缓存，每个对应于多个主机存储器描述符队列中的相应一个的多个缓冲区描述符缓存，以及多个队列描述符，每个对应于主机存储器描述符队列每个队列描述符包括用于对应的描述符队列的主机存储器读地址指针，并且该相同的读指针用于从算法上导出描述符高速缓存写地址，在该地址处写入从相应主机存储器描述符队列检索的缓冲器描述符。

6. 发明申请

US20110264758A1 USER-LEVEL STACK 有权
标题翻译：用户级堆栈
公开(公告)号：US20110264758A1
公开(公告)日：2011-10-27
申请号：US13173349
申请日：2011-06-30
申请人： STEVE L. POPE , DAVID J. RIDDOCH
发明人： STEVE L. POPE , DAVID J. RIDDOCH
IPC分类号： G06F15/167
CPC分类号： G06F13/10
摘要： A method for transmitting data by means of a data processing system, the system being capable of supporting an operating system and at least one application and having access to a memory and a network interface device capable of supporting a communication link over a network with another network interface device, the method comprising the steps of: forming by means of the application data to be transmitted; requesting by means of the application a non-operating-system functionality of the data processing system to send the data to be transmitted; responsive to that request: writing the data to be transmitted to an area of the memory; and initiating by means of direct communication between the non-operating-system functionality and the network interface device a transmission operation of at least some of the data over the network; and subsequently accessing the memory by means of the operating system and performing at least part of a transmission operation of at least some of the data over the network by means of the network interface device.
摘要翻译：一种用于通过数据处理系统发送数据的方法，该系统能够支持操作系统和至少一个应用并具有访问存储器和能够通过网络与另一网络支持通信链路的网络接口设备接口装置，所述方法包括以下步骤：通过要发送的应用数据形成; 通过应用程序请求数据处理系统的非操作系统功能来发送要发送的数据; 响应于该请求：将要发送的数据写入存储器的区域; 以及通过所述非操作系统功能和所述网络接口设备之间的直接通信来启动所述网络中的至少一些所述数据的传输操作; 随后通过操作系统访问存储器，并通过网络接口设备通过网络执行至少一些数据的传输操作的至少一部分。

7. 发明授权

US09043671B2 Data protocol 有权
标题翻译：数据协议
公开(公告)号：US09043671B2
公开(公告)日：2015-05-26
申请号：US13053112
申请日：2011-03-21
申请人： Steve L. Pope , Derek Roberts , David Riddoch , David Clarke
发明人： Steve L. Pope , Derek Roberts , David Riddoch , David Clarke
IPC分类号： H03M13/00 , H04L1/00
CPC分类号： H04L1/0061 , H04L1/007 , H04L1/0078
摘要： A method of transmitting data according to a data transmission protocol wherein the data is transmitted as a plurality of data frames and each data frame includes an error checking field comprising at least two sub-fields, the data of the first sub-field being formed by a first error checking method performed on data of the frame and the data of the second sub-field being formed by a second error checking method performed on the said data of the frame, the first and second methods being such that the data of the first sub-field has different error checking properties from those of the data of the second sub-field.
摘要翻译：一种根据数据传输协议发送数据的方法，其中数据作为多个数据帧发送，每个数据帧包括包括至少两个子场的错误检查字段，第一子字段的数据由对所述帧的数据执行的第一错误检查方法和通过对所述帧的所述数据执行的第二错误检查方法形成的所述第二子字段的数据，所述第一和第二方法使得所述第一子字段具有与第二子字段的数据不同的错误检查属性。

8. 发明申请

US20140105208A1 FEED PROCESSING 审中-公开
标题翻译：进料加工
公开(公告)号：US20140105208A1
公开(公告)日：2014-04-17
申请号：US13789353
申请日：2013-03-07
申请人： Steve L. Pope , David J. Riddoch
发明人： Steve L. Pope , David J. Riddoch
IPC分类号： H04L12/18
CPC分类号： H04L12/1804 , G06F13/385 , G06F2213/0058 , G06F2213/3808 , H04L49/90
摘要： A data processing system comprising: a processing subsystem supporting a plurality of consumers, each consumer being arranged to process messages received into a corresponding receive queue; a network interface device supporting a virtual interface for each of the receive queues; and a hardware accelerator coupled to the processing subsystem by the network interface device and configured to parse one or more streams of data packets received from a network so as to, for each consumer: identify in the data packets messages having one or more of a set of characteristics associated with the consumer; and frame the identified messages in a new stream of data packets addressed to a network endpoint associated with the virtual interface of the consumer so as to cause said new stream of data packets to be delivered into the receive queue of the consumer.
摘要翻译：一种数据处理系统，包括：支持多个消费者的处理子系统，每个消费者被配置为处理接收到相应接收队列中的消息; 支持每个接收队列的虚拟接口的网络接口设备; 以及硬件加速器，其通过所述网络接口设备耦合到所述处理子系统并且被配置为解析从网络接收的一个或多个数据分组流，以便针对每个消费者：在所述数据分组中识别具有一个或多个集合的消息与消费者相关的特征; 并将所识别的消息在寻址到与消费者的虚拟接口相关联的网络端点的数据分组的新流中进行帧化，以使所述新的数据分组流被传送到消费者的接收队列中。

9. 发明申请

US20130145035A1 TCP PROCESSING FOR DEVICES 审中-公开
标题翻译： TCP处理设备
公开(公告)号：US20130145035A1
公开(公告)日：2013-06-06
申请号：US13754792
申请日：2013-01-30
申请人： Steve L. Pope , Davis J. Riddoch
发明人： Steve L. Pope , Davis J. Riddoch
IPC分类号： H04L29/06
CPC分类号： H04L65/60 , H04L69/161 , H04L69/22
摘要： A data processing system comprising: a host processing device supporting a host transport engine operable to establish one or more transport streams over a network with a remote peer, the host transport engine maintaining state for each transport stream; and device hardware comprising: a device application; a device transport engine operable to perform transport processing of a transport stream on behalf of the device application; wherein the host transport engine is configured to, on establishing a first transport stream for termination at the device application, pass sufficient state to the device transport engine so as to permit the device transport engine to perform transport processing of the first transport stream.
摘要翻译：一种数据处理系统，包括：主机处理装置，其支持主机传输引擎，所述主机传输引擎可操作以通过网络与远程对等体建立一个或多个传输流，所述主机传输引擎维护每个传输流的状态; 以及设备硬件，包括：设备应用; 可操作以代表设备应用执行传输流的传输处理的设备传输引擎; 其中所述主机传输引擎被配置为在建立用于在所述设备应用中终止的第一传输流时，将足够的状态传递到所述设备传输引擎，以允许所述设备传输引擎执行所述第一传输流的传输处理。

10. 发明授权

US08380882B2 Packet validation in virtual network interface architecture 有权
公开(公告)号：US08380882B2
公开(公告)日：2013-02-19
申请号：US12612078
申请日：2009-11-04
申请人： Steve L. Pope , David J. Riddoch , Ching Yu , Derek Roberts
发明人： Steve L. Pope , David J. Riddoch , Ching Yu , Derek Roberts
IPC分类号： G06F15/16
CPC分类号： H04L63/10 , H04L47/50 , H04L49/90 , H04L49/901 , H04L49/9031 , H04L49/9063
摘要： Roughly described, a network interface device receiving data packets from a computing device for transmission onto a network, the data packets having a certain characteristic, transmits the packet only if the sending queue has authority to send packets having that characteristic. The data packet characteristics can include transport protocol number, source and destination port numbers, source and destination IP addresses, for example. Authorizations can be programmed into the NIC by a kernel routine upon establishment of the transmit queue, based on the privilege level of the process for which the queue is being established. In this way, a user process can use an untrusted user-level protocol stack to initiate data transmission onto the network, while the NIC protects the remainder of the system or network from certain kinds of compromise.

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