-
公开(公告)号：US20160182373A1
公开(公告)日：2016-06-23
申请号：US14580801
申请日：2014-12-23
申请人： Ren Wang , Namakkal N. Venkatesan , Aamer Jaleel , Tsung-Yuan C. Tai , Sameh Gobriel , Christian Maciocco
发明人： Ren Wang , Namakkal N. Venkatesan , Aamer Jaleel , Tsung-Yuan C. Tai , Sameh Gobriel , Christian Maciocco
IPC分类号： H04L12/743 , H04L12/747 , H04L29/06
CPC分类号： H04L45/7453 , H04L45/742 , H04L69/22
摘要： Technologies for managing network flow lookups of a network device include a network controller and a target device, each communicatively coupled to the network device. The network device includes a cache for a processor of the network device and a main memory. The network device additionally includes a multi-level hash table having a first-level hash table stored in the cache of the network device and a second-level hash table stored in the main memory of the network device. The network device is configured to determine whether to store a network flow hash corresponding to a network flow indicating the target device in the first-level or second-level hash table based on a priority of the network flow provided to the network device by the network controller.
摘要翻译： 用于管理网络设备的网络流查找的技术包括网络控制器和目标设备，每个通信地耦合到网络设备。 网络设备包括用于网络设备的处理器的缓存和主存储器。 网络设备还包括具有存储在网络设备的高速缓存中的第一级散列表的多级散列表和存储在网络设备的主存储器中的第二级散列表。 网络设备被配置为基于由网络提供给网络设备的网络流的优先级来确定是否将与指示目标设备的网络流相对应的网络流哈希存储在第一级或第二级哈希表中 控制器。
-
公开(公告)号：US20160182351A1
公开(公告)日：2016-06-23
申请号：US14580792
申请日：2014-12-23
申请人： Ren Wang , Sameh Gobriel , Christian Maciocco , Tsung-Yuan C. Tai , Ben-Zion Friedman , Hang T. Nguyen , Namakkal N. Venkatesan , Michael A. O'Hanlon , Shrikant M. Shah , Sanjeev Jain
发明人： Ren Wang , Sameh Gobriel , Christian Maciocco , Tsung-Yuan C. Tai , Ben-Zion Friedman , Hang T. Nguyen , Namakkal N. Venkatesan , Michael A. O'Hanlon , Shrikant M. Shah , Sanjeev Jain
IPC分类号： H04L12/757 , H04L12/721 , H04L12/727
CPC分类号： H04L67/2852 , H04L41/0893 , H04L45/38 , H04L45/745 , H04L45/7453 , H04L49/00
摘要： Technologies for identifying a cache line of a network packet for eviction from an on-processor cache of a network device communicatively coupled to a network controller. The network device is configured to determine whether a cache line of the cache corresponding to the network packet is to be evicted from the cache based on a determination that the network packet is not needed subsequent to processing the network packet, and provide an indication that the cache line is to be evicted from the cache based on an eviction policy received from the network controller.
摘要翻译： 用于识别网络分组的高速缓存行的技术，用于从通信地耦合到网络控制器的网络设备的处理器上的缓存驱逐。 网络设备被配置为基于在处理网络分组之后不需要网络分组的确定来确定与网络分组相对应的高速缓存行是否要从高速缓存中逐出，并提供指示 基于从网络控制器接收到的逐出策略，缓存行将从缓存中逐出。
-
公开(公告)号：US20210004328A1
公开(公告)日：2021-01-07
申请号：US17027248
申请日：2020-09-21
申请人： Ren Wang , Andrew J. Herdrich , Yen-cheng Liu , Herbert H. Hum , Jong Soo Park , Christopher J. Hughes , Namakkal N. Venkatesan , Adrian C. Moga , Aamer Jaleel , Zeshan A. Chishti , Mesut A. Ergin , Jr-shian Tsai , Alexander W. Min , Tsung-yuan C. Tai , Christian Maciocco , Rajesh Sankaran
发明人： Ren Wang , Andrew J. Herdrich , Yen-cheng Liu , Herbert H. Hum , Jong Soo Park , Christopher J. Hughes , Namakkal N. Venkatesan , Adrian C. Moga , Aamer Jaleel , Zeshan A. Chishti , Mesut A. Ergin , Jr-shian Tsai , Alexander W. Min , Tsung-yuan C. Tai , Christian Maciocco , Rajesh Sankaran
IPC分类号： G06F12/0842 , G06F12/0831 , G06F12/0893 , G06F12/109 , G06F12/0813 , G06F9/455
摘要： Methods and apparatus implementing Hardware/Software co-optimization to improve performance and energy for inter-VM communication for NFVs and other producer-consumer workloads. The apparatus include multi-core processors with multi-level cache hierarchies including and L1 and L2 cache for each core and a shared last-level cache (LLC). One or more machine-level instructions are provided for proactively demoting cachelines from lower cache levels to higher cache levels, including demoting cachelines from L1/L2 caches to an LLC. Techniques are also provided for implementing hardware/software co-optimization in multi-socket NUMA architecture system, wherein cachelines may be selectively demoted and pushed to an LLC in a remote socket. In addition, techniques are disclosure for implementing early snooping in multi-socket systems to reduce latency when accessing cachelines on remote sockets.
-
公开(公告)号：US20170163575A1
公开(公告)日：2017-06-08
申请号：US14960993
申请日：2015-12-07
IPC分类号： H04L12/861 , H04L12/743 , H04L12/741 , H04L12/721
CPC分类号： H04L49/9094 , H04L45/38 , H04L45/54 , H04L45/7453
摘要： Methods and apparatus to support multiple-writer/multiple-reader concurrency for software flow/packet classification on general purpose multi-core systems. A flow table with rows mapped to respective hash buckets with multiple entry slots is implemented in memory of a host platform with multiple cores, with each bucket being associated with a version counter. Multiple writer and reader threads are run on the cores, with writers providing updates to the flow table data. In connection with inserting new key data, a determination is made to which buckets will be changed, and access rights to those buckets are acquired prior to making any changes. For example, under a flow table employing cuckoo hashing, access rights are acquired to buckets along a full cuckoo path. Once the access rights are obtained, a writer is enabled to update data in the applicable buckets to effect entry of the new key data, while other writer threads are prevented from changing any of these buckets, but may concurrently insert or modify key data in other buckets.
-
公开(公告)号：US10218647B2
公开(公告)日：2019-02-26
申请号：US14960993
申请日：2015-12-07
IPC分类号： H04L12/861 , H04L12/721 , H04L12/743 , H04L12/741
摘要： Methods and apparatus to support multiple-writer/multiple-reader concurrency for software flow/packet classification on general purpose multi-core systems. A flow table with rows mapped to respective hash buckets with multiple entry slots is implemented in memory of a host platform with multiple cores, with each bucket being associated with a version counter. Multiple writer and reader threads are run on the cores, with writers providing updates to the flow table data. In connection with inserting new key data, a determination is made to which buckets will be changed, and access rights to those buckets are acquired prior to making any changes. For example, under a flow table employing cuckoo hashing, access rights are acquired to buckets along a full cuckoo path. Once the access rights are obtained, a writer is enabled to update data in the applicable buckets to effect entry of the new key data, while other writer threads are prevented from changing any of these buckets, but may concurrently insert or modify key data in other buckets.
-
公开(公告)号：US20140071866A1
公开(公告)日：2014-03-13
申请号：US13612142
申请日：2012-09-12
IPC分类号： H04W52/02
CPC分类号： H04W52/0229 , Y02D70/1262 , Y02D70/142 , Y02D70/146 , Y02D70/164
摘要： Devices and methods for optimizing semi-active workloads are described herein. A network interface device may be configured to offload data packet acknowledgment responsibilities of a host platform by transmitting, to the sender of the packets, acknowledgements of packets received throughout a time duration. Upon completion of the time duration, the network interface device may trigger the host platform to perform batch processing of the data packets received during the time duration.
摘要翻译： 本文描述了用于优化半主动工作负载的设备和方法。 网络接口设备可以被配置为通过在整个持续时间内向分组的发送者发送接收到的分组的确认来卸载主机平台的数据分组确认责任。 在完成持续时间后，网络接口设备可以触发主机平台对持续时间内接收的数据分组执行批处理。
-
7.发明申请公开(公告)号：US20160241475A1
公开(公告)日：2016-08-18
申请号：US14750921
申请日：2015-06-25
申请人： Ren Wang , Dong Zhou , Bruce Richardson , George W. Kennedy , Christian Maciocco , Sameh Gobriel , Tsung-Yuan C. Tai
发明人： Ren Wang , Dong Zhou , Bruce Richardson , George W. Kennedy , Christian Maciocco , Sameh Gobriel , Tsung-Yuan C. Tai
IPC分类号： H04L12/743 , H04L12/851
CPC分类号： H04L45/7453 , H04L47/21 , H04L47/2483
摘要： Technologies for supporting concurrency of a flow lookup table at a network device. The flow lookup table includes a plurality of candidate buckets that each includes one or more entries. The network device includes a flow lookup table write module configured to perform a displacement operation of a key/value pair to move the key/value pair from one bucket to another bucket via an atomic instruction and increment a version counter associated with the buckets affected by the displacement operation. The network device additionally includes a flow lookup table read module to check the version counters during a lookup operation on the flow lookup table to determine whether a displacement operation is affecting the presently read value of the buckets. Other embodiments are described herein and claimed.
摘要翻译： 支持网络设备上流查询表并发的技术。 流查找表包括多个候选桶，每个候选桶包括一个或多个条目。 网络设备包括：流查找表写入模块，被配置为执行键/值对的位移操作，以通过原子指令将键/值对从一个桶移动到另一个桶，并且增加与受影响的桶相关联的版本计数器 排量操作。 网络设备另外包括流查询表读取模块，用于在对查找表的查找操作期间检查版本计数器，以确定位移操作是否影响当前读取的值的值。 其他实施例在本文中被描述并被要求保护。
-
公开(公告)号：US09155046B2
公开(公告)日：2015-10-06
申请号：US13612142
申请日：2012-09-12
IPC分类号： H04W52/02
CPC分类号： H04W52/0229 , Y02D70/1262 , Y02D70/142 , Y02D70/146 , Y02D70/164
摘要： Devices and methods for optimizing semi-active workloads are described herein. A network interface device may be configured to offload data packet acknowledgment responsibilities of a host platform by transmitting, to the sender of the packets, acknowledgements of packets received throughout a time duration. Upon completion of the time duration, the network interface device may trigger the host platform to perform batch processing of the data packets received during the time duration.
摘要翻译： 本文描述了用于优化半主动工作负载的设备和方法。 网络接口设备可以被配置为通过在整个持续时间内向分组的发送者发送接收到的分组的确认来卸载主机平台的数据分组确认责任。 在完成持续时间后，网络接口设备可以触发主机平台对持续时间内接收的数据分组执行批处理。
-
公开(公告)号：US20180083866A1
公开(公告)日：2018-03-22
申请号：US15270377
申请日：2016-09-20
申请人： Sameh Gobriel , Ren Wang , Eric K. Mann , Christian Maciocco , Tsung-Yuan C. Tai
发明人： Sameh Gobriel , Ren Wang , Eric K. Mann , Christian Maciocco , Tsung-Yuan C. Tai
IPC分类号： H04L12/721 , H04L12/851 , H04L12/863 , H04L12/751 , H04L12/715
CPC分类号： H04L47/6215 , H04L47/2441 , H04L49/205
摘要： Methods and apparatus for facilitating efficient Quality of Service (QoS) support for software-based packet processing by offloading QoS rate-limiting to NIC hardware. Software-based packet processing is performed on packet flows received at a compute platform, such as a general purpose server, and/or packet flows generated by local applications running on the compute platform. The packet processing includes packet classification that associates packets with packet flows using flow IDs, and identifying a QoS class for the packet and packet flow. NIC Tx queues are dynamically configured or pre-configured to effect rate limiting for forwarding packets enqueued in the NIC Tx queues. New packet flows are detected, and mapping data is created to map flow IDs associated with flows to the NIC Tx queues used to forward the packets associated with the flows.
-
公开(公告)号：US20160241474A1
公开(公告)日：2016-08-18
申请号：US14750918
申请日：2015-06-25
申请人： Ren Wang , Dong Zhou , Christian Maciocco , Sameh Gobriel , Tsung-Yuan C. Tai
发明人： Ren Wang , Dong Zhou , Christian Maciocco , Sameh Gobriel , Tsung-Yuan C. Tai
IPC分类号： H04L12/743 , H04L12/771 , H04L12/741 , H04L12/715
CPC分类号： H04L45/7453 , H04L45/46 , H04L45/54 , H04L45/56
摘要： Technologies for modular forwarding table scalability of a software cluster switch includes a plurality of computing nodes. Each of the plurality of computing nodes includes a global partition table (GPT) to determine an egress computing node for a network packet received at an ingress computing node of the software cluster switch based on a flow identifier of the network packet. The GPT includes a set mapping index that corresponds to a result of a hash function applied to the flow identifier and a hash function index that identifies a hash function of a hash function family whose output results in a node identifier that corresponds to the egress computing node to which the ingress computing node forwards the network packet. Other embodiments are described herein and claimed.
摘要翻译： 软件集群交换机的模块化转发表可扩展性的技术包括多个计算节点。 多个计算节点中的每一个包括全局分区表（GPT），用于基于网络分组的流标识来确定在软件集群交换机的入口计算节点处接收到的网络分组的出口计算节点。 GPT包括对应于应用于流标识符的散列函数的结果的集合映射索引以及标识散列函数族的散列函数的散列函数索引，所述散列函数索引的输出导致与出口计算节点相对应的节点标识符 入口计算节点转发网络分组。 其他实施例在本文中被描述并被要求保护。
-
-
-
-
-
-
-
-
-
搜索结果
134 条记录 (耗时 0.031 秒)
