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1. 发明授权

US09537878B1 Network adaptor configured for connection establishment offload 有权
标题翻译：配置为连接建立卸载的网络适配器
公开(公告)号：US09537878B1
公开(公告)日：2017-01-03
申请号：US14569584
申请日：2014-12-12
申请人： Chelsio Communications, Inc.
发明人： Asgeir Thor Eiriksson , Chandrasekhar Srinivasaiah , Wael Noureddine
IPC分类号： G06F15/16 , H04L29/06
CPC分类号： H04L63/1416 , H04L63/1458 , H04L69/163
摘要： Coupling circuitry couples a network to a host. The host operating system is configured for transfer of data between the host and at least one peer via the network using at least one stateful connection to a peer according to a connection-oriented protocol. The coupling circuitry processes received connection attempt indications by attempting to establish a stateful connection to an indicated peer. For a genuine attempt by a peer to establish a stateful connection with the host, the coupling circuitry interoperates with the peer to perform establishment-phase protocol processing of the attempted stateful connection. For each of the established stateful connections, the coupling circuitry operates to cause a state of that established stateful connection to be provided from the coupling circuitry to the host, wherein the operating system of the host handles data transfer phase protocol processing of that established stateful connection.
摘要翻译：耦合电路将网络耦合到主机。主机操作系统被配置为根据面向连接的协议，使用至少一个与对等体的状态连接，经由网络在主机与至少一个对等体之间传输数据。耦合电路通过尝试建立到所指示的对等体的状态连接来处理接收到的连接尝试指示。为了对等体与主机建立有状态连接的真实尝试，耦合电路与对等体进行互操作，以执行尝试的有状态连接的建立阶段协议处理。对于所建立的有状态连接中的每一个，耦合电路操作以使得所建立的状态连接的状态从耦合电路提供给主机，其中主机的操作系统处理该建立的状态连接的数据传输阶段协议处理。

2. 发明授权

US09357003B1 Failover and migration for full-offload network interface devices 有权
公开(公告)号：US09357003B1
公开(公告)日：2016-05-31
申请号：US14513170
申请日：2014-10-13
申请人： Chelsio Communications, Inc.
发明人： Asgeir Thor Eiriksson , Wael Noureddine , Balekudru A. Krishna
IPC分类号： G06F15/16 , H04L29/08
CPC分类号： H04L67/104 , H04L65/1013 , H04L67/141 , H04L69/14 , H04L69/163 , H04L69/22 , H04L69/40
摘要： A method and apparatus are provided for communication of a host having a first network interface device and a second network interface device coupled thereto. The first network interface device is configured to operate a transport layer network connection between the host and a peer. The host is configured to, while the first network device is operating the transport layer network connection with the peer, independently determine connection information that describes the transport layer network connection being operated by the first network interface device. The second network interface device is caused to operate the transport layer network connection with the peer based at least in part on the connection information maintained by the host.

3. 发明授权

US09628370B1 Method for efficient routing in a network interface card 有权
公开(公告)号：US09628370B1
公开(公告)日：2017-04-18
申请号：US15179710
申请日：2016-06-10
申请人： Chelsio Communications, Inc.
发明人： Wael Noureddine , Asgeir Thor Eiriksson
IPC分类号： H04L12/40 , H04L12/761 , H04L12/707 , H04L29/08
CPC分类号： H04L45/16 , G06F13/4022 , G06F15/1735 , H04L45/24 , H04L67/2861 , H04L67/2866
摘要： Packet switching is facilitated between a source and a destination through a network interface card. In accordance with an aspect, a NIC is configured to switch ingress packets—coming from the network—selectively to one or multiple destinations (in a NIC which is capable of replicating packets) on the host computer, and alternatively or additionally (in a NIC which is capable of replicating packets) back to one or multiple destinations on the network. In multi-port NICs, this capability effectively allows a NIC to perform the basic functions of a standalone network switch as well as additional useful functions.

4. 发明授权

US09413695B1 Multi-function interconnect having a plurality of switch building blocks 有权
标题翻译：多功能互连具有多个开关结构块
公开(公告)号：US09413695B1
公开(公告)日：2016-08-09
申请号：US13622288
申请日：2012-09-18
申请人： Chelsio Communications, Inc.
发明人： Wael Noureddine , Asgeir Thor Eiriksson
IPC分类号： H04L12/50 , H04L12/935
CPC分类号： H04L49/309 , H04L49/35
摘要： A multi-port L2 to L7 switch may be implemented using multi-port switch building blocks such as a multi-port intelligent network interface card (NIC), without necessitating a dedicated switch. It is, for example, possible to build a 16-node switched interconnect from 16 4-port building blocks. Such a multi-port L2 to L7 switch may be used as a storage/compute cluster interconnect, where it replaces one or more external switches. The multi-port switch may utilize routing protocols such as IS-IS and OSPF. It may further support ACL, TCP proxy (L4 switching), iSCSI switching (L7 switching), and multi-function gateway capability, translating between different protocols such as iSCSI/FCoE/FC/SAS, etc.
摘要翻译：可以使用诸如多端口智能网络接口卡（NIC）的多端口交换机构建块来实现多端口L2到L7交换机，而不需要专用交换机。例如，可以从16个4端口构建块构建16节点交换互连。这种多端口L2到L7交换机可以用作存储/计算集群互连，其中它替换一个或多个外部交换机。多端口交换机可以使用IS-IS和OSPF等路由协议。可以进一步支持ACL，TCP代理（L4交换），iSCSI交换（L7交换）和多功能网关功能，在不同协议（如iSCSI / FCoE / FC / SAS等）之间进行转换。

5. 发明授权

US11025752B1 Method to integrate co-processors with a protocol processing pipeline 有权
公开(公告)号：US11025752B1
公开(公告)日：2021-06-01
申请号：US14804007
申请日：2015-07-20
申请人： Chelsio Communications, Inc.
发明人： Asgeir Thor Eiriksson , Wael Noureddine
IPC分类号： H04L29/06 , H04L29/08
摘要： A network adaptor (or NIC) is equipped with multi-level protocol processing capability and is implemented with a protocol processing pipeline that has multiple tap points to enable the integration of co-processors to operate with the NIC. The capability leverages the protocol processing pipeline and all the existing NIC software while at the same time enabling the integration of value added co-processors to customize and enhance the NIC capabilities.

6. 发明授权

US09444754B1 Method for congestion control in a network interface card 有权
标题翻译：网络接口卡中拥塞控制的方法
公开(公告)号：US09444754B1
公开(公告)日：2016-09-13
申请号：US14276947
申请日：2014-05-13
申请人： Chelsio Communications, Inc.
发明人： Wael Noureddine
IPC分类号： H04L12/24 , H04L12/801
CPC分类号： H04L47/35 , H04L47/11 , H04L47/31
摘要： Congestion detection is implemented on the ingress direction, egress direction, or both directions in a network interface controller. Congestion notification is facilitated between a source and a destination through a network interface controller. In accordance with an aspect, a NIC is configured to label ingress packets—coming from the network—in relation to the presence of congestion. In accordance with another aspect, the NIC is configured to label egress packets—going to the network—in relation to the presence of congestion. A full offload NIC is equipped to operate on the packet labels in the presence of congestion and to react appropriately if it is on the receiving end, sending end, or both.
摘要翻译：拥塞检测在网络接口控制器中的入口方向，出口方向或两个方向上实现。通过网络接口控制器在源和目的地之间促进拥塞通知。根据一个方面，NIC被配置为标记来自网络的入口分组 - 与拥塞的存在有关。根据另一方面，NIC被配置为对出现拥塞的出口标签进入网络。配备完整的卸载网卡，在拥塞的情况下对数据包标签进行操作，如果在接收端，发送端或两者都有适当的反应。

7. 发明授权

US08886821B1 Failover and migration for full-offload network interface devices 有权
标题翻译：全卸载网络接口设备的故障切换和迁移
公开(公告)号：US08886821B1
公开(公告)日：2014-11-11
申请号：US13690976
申请日：2012-11-30
申请人： Chelsio Communications, Inc.
发明人： Asgeir Thor Eiriksson , Wael Noureddine , Balekudru A. Krishna
IPC分类号： G06F15/16 , H04L29/06 , H04L29/14
CPC分类号： H04L67/104 , H04L65/1013 , H04L67/141 , H04L69/14 , H04L69/163 , H04L69/22 , H04L69/40
摘要： A method and apparatus are provided for communication of a host having a first network interface device and a second network interface device coupled thereto. The first network interface device is configured to operate a transport layer network connection between the host and a peer. The host is configured to, while the first network device is operating the transport layer network connection with the peer, independently determine connection information that describes the transport layer network connection being operated by the first network interface device. The second network interface device is caused to operate the transport layer network connection with the peer based at least in part on the connection information maintained by the host.
摘要翻译：提供了一种用于通信具有第一网络接口设备和耦合到其的第二网络接口设备的主机的方法和设备。第一网络接口设备被配置为操作主机和对等体之间的传输层网络连接。主机被配置为当第一网络设备正在与对等体操作传输层网络连接时，独立地确定描述由第一网络接口设备操作的传输层网络连接的连接信息。使第二网络接口设备至少部分地基于由主机维护的连接信息来与对等体操作传输层网络连接。

8. 发明授权

US08856947B1 Intrusion detection and prevention processing within network interface circuitry 有权
标题翻译：网络接口电路内的入侵检测和预防处理
公开(公告)号：US08856947B1
公开(公告)日：2014-10-07
申请号：US14099577
申请日：2013-12-06
申请人： Chelsio Communications, Inc.
发明人： Asgeir Thor Eiriksson , Wael Noureddine , Anamaya Sullerey
IPC分类号： H04L29/06
CPC分类号： H04L63/1408 , H04L63/0236 , H04L63/1425 , H04L67/1002
摘要： A network interface controller (NIC) is configured to couple a host to a network. The NIC coupled to the host via a host bus, and the host is configured to operate a plurality of virtual machines. The NIC is configured to receive at least one data frame, the at least one data frame including at least a source network address and indication of at least one destination network address; determine if the received data frame is a frame on which additional processing should occur; based on a result of the determining step, cause the frame to be provided to the host, via the host bus, for the host to perform the additional processing; and receive, via the host bus, the frame on which additional processing has been performed and steer the frame to a destination based on the at least one destination address.
摘要翻译：网络接口控制器（NIC）被配置为将主机耦合到网络。 NIC通过主机总线耦合到主机，并且主机被配置为操作多个虚拟机。 NIC被配置为接收至少一个数据帧，所述至少一个数据帧至少包括源网络地址和至少一个目的地网络地址的指示; 确定接收到的数据帧是否是应该发生附加处理的帧; 基于所述确定步骤的结果，通过所述主机总线使所述主机提供所述主机以执行所述附加处理; 并且经由所述主机总线接收已经执行了附加处理的帧，并且基于所述至少一个目的地地址将所述帧转向目的地。

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