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1. 发明申请

US20230052672A1 QUEUE BYPASSING INTERRUPT HANDLING 有权
公开(公告)号：US20230052672A1
公开(公告)日：2023-02-16
申请号：US17398701
申请日：2021-08-10
申请人： International Business Machines Corporation
发明人： Matthew R. Ochs , Andre Laurent Albot , Hemanta Kumar Dutta
IPC分类号： G06F9/48 , G06F13/40 , G06F13/24
摘要： Within an interrupt routing structure, an interrupt handler is registered, the registering comprising storing a pointer to the interrupt handler in the interrupt routing structure. Responsive to determining that a received interrupt comprises a queuing bypass flag in a set state, the interrupt handler is executed, the executing bypassing an interrupt queueing mechanism.

2. 发明申请

US20210208926A1 SUPPRESSING INTERRUPTS TO AN APPLICATION THREAD 有权
公开(公告)号：US20210208926A1
公开(公告)日：2021-07-08
申请号：US16732856
申请日：2020-01-02
申请人： International Business Machines Corporation
发明人： Dirk Michel , Bret R. Olszewski , Matthew R. Ochs
IPC分类号： G06F9/48
摘要： In a computing system, an application thread is executed on a hardware thread. Based on a configuration of the computing system, a first threshold is determined comprising a threshold percentage of execution time spent servicing a set of interrupts to the application thread relative to a total execution time for the hardware thread. For the hardware thread, a length of a first time period spent servicing an interrupt in the set of interrupts and a length of a second time period spent executing the application thread are measured. A cumulative percentage of execution time spent in the first time period relative to execution time spent in the first time period and the second time period is calculated. Responsive to the cumulative percentage being above the threshold percentage, interrupt servicing on the hardware thread is disabled.

3. 发明申请

US20170324661A1 MULTICAST MESSAGE FILTERING IN VIRTUAL ENVIRONMENTS 审中-公开
公开(公告)号：US20170324661A1
公开(公告)日：2017-11-09
申请号：US15661836
申请日：2017-07-27
申请人： International Business Machines Corporation
发明人： Omar Cardona , James B. Cunningham , Baltazar De Leon, III , Matthew R. Ochs
IPC分类号： H04L12/741 , H04L29/06 , G06F9/455 , G06F9/54 , H04L12/18 , H04L12/58
CPC分类号： H04L45/745 , G06F9/45558 , G06F9/542 , G06F2009/45595 , G06F2209/543 , H04L12/185 , H04L51/12 , H04L63/0227
摘要： Various systems, processes, and products may be used to filter multicast messages in virtual environments. In particular implementations, a system, process, and product for filtering multicast messages in virtual environments may include the ability to, responsive to receiving a multicast message including a destination address, examine a local filtering store of the network adapter for a multicast filtering address matching the destination address. The message is sent to respective virtual machines if the destination address matches the multicast filtering address found in the local filtering store for the respective virtual machines. Responsive to determining that the destination address does not match any multicast filtering address found in the local filtering store, a determination is made whether the local filtering store is full and, if so, the multicast message is dropped.

4. 发明授权

US09356863B2 Communications over multiple protocol interfaces in a computing environment 有权
标题翻译：在计算环境中通过多个协议接口进行通信
公开(公告)号：US09356863B2
公开(公告)日：2016-05-31
申请号：US14919443
申请日：2015-10-21
申请人： International Business Machines Corporation
发明人： Perinkulum I. Ganesh , Dimpu K. Nath , Matthew R. Ochs
IPC分类号： H04L12/741 , H04L12/781 , H04L29/06 , H04L29/08
CPC分类号： H04L61/6086 , H04L45/52 , H04L45/74 , H04L67/42 , H04L69/22 , H04L69/329 , H04L2012/5652
摘要： According to one aspect of the present disclosure, a system for communications over multiple protocol interfaces in a computing environment includes a processor and a memory storing interface logic executable by the processor to: identify a first communications protocol of a network interface for egress data packet communications; responsive to the identified first communications protocol of the network interface differing from a second communications protocol to be used for the data packet communications, derive fragmentation data according to a data packet fragmentation protocol corresponding to the second communications protocol; generate an application layer header for the data packet communications; store values of the fragmentation data in select fields of the application layer header; fragment the data packet communications according to the data packet fragmentation protocol; and transmit the data packet communications including the application layer header over the identified network interface.
摘要翻译：根据本公开的一个方面，一种用于在计算环境中通过多个协议接口进行通信的系统包括处理器和存储器，其存储可由所述处理器执行的接口逻辑，以便：识别用于出口数据分组通信的网络接口的第一通信协议 ; 响应于所识别的与要用于数据分组通信的第二通信协议不同的网络接口的第一通信协议，根据与第二通信协议相对应的数据分组分段协议导出分段数据; 生成用于数据包通信的应用层报头; 存储应用层头部的选择字段中的分段数据的值; 根据数据包分片协议分段数据包通信; 并通过所识别的网络接口发送包括应用层报头的数据分组通信。

5. 发明授权

US09286171B2 Priming failover of stateful offload adapters 有权
标题翻译：启动状态卸载适配器的故障转移
公开(公告)号：US09286171B2
公开(公告)日：2016-03-15
申请号：US14103937
申请日：2013-12-12
申请人： International Business Machines Corporation
发明人： Omar Cardona , Matthew R. Ochs , Vikramjit Sethi
IPC分类号： G06F11/00 , G06F11/20 , G06F15/173
CPC分类号： G06F11/203 , G06F11/1658 , G06F11/2005 , G06F11/2033 , G06F15/17331
摘要： Mechanisms, in a data processing system comprising a first adapter and second adapter, for performing a failover operation from the first adapter to the second adapter are provided. The mechanisms detect that an imminent failure of the first adapter is likely to occur and initiate a failover priming operation in the first adapter and second adapter in response to detecting the imminent failure. The failover priming operation configures ingress and egress buffers of the second adapter to have a similar configuration to ingress and egress buffers of the first adapter. The mechanisms migrate processing of ingress data traffic to the second adapter prior to failure of the first adapter such that the first adapter processes egress data traffic from the data processing system and the second adapter processes ingress data traffic to the data processing system.
摘要翻译：提供了在包括第一适配器和第二适配器的数据处理系统中用于执行从第一适配器到第二适配器的故障转移操作的机制。这些机制检测到可能发生第一适配器即将发生的故障，并响应于检测到即将发生的故障，在第一适配器和第二适配器中启动故障转移启动操作。故障转移启动操作将第二个适配器的入口和出口缓冲区配置为具有与第一个适配器的入口和出口缓冲区类似的配置。这些机制在第一适配器故障之前将入口数据业务处理迁移到第二适配器，使得第一适配器处理来自数据处理系统的出口数据业务，并且第二适配器处理到数据处理系统的入口数据业务。

6. 发明申请

US20160043948A1 COMMUNICATIONS OVER MULTIPLE PROTOCOL INTERFACES IN A COMPUTING ENVIRONMENT 有权
标题翻译：计算环境中多个协议接口的通信
公开(公告)号：US20160043948A1
公开(公告)日：2016-02-11
申请号：US14919443
申请日：2015-10-21
申请人： International Business Machines Corporation
发明人： Perinkulum I. Ganesh , Dimpu K. Nath , Matthew R. Ochs
IPC分类号： H04L12/741 , H04L12/781
CPC分类号： H04L61/6086 , H04L45/52 , H04L45/74 , H04L67/42 , H04L69/22 , H04L69/329 , H04L2012/5652
摘要： According to one aspect of the present disclosure, a system for communications over multiple protocol interfaces in a computing environment includes a processor and a memory storing interface logic executable by the processor to: identify a first communications protocol of a network interface for egress data packet communications; responsive to the identified first communications protocol of the network interface differing from a second communications protocol to be used for the data packet communications, derive fragmentation data according to a data packet fragmentation protocol corresponding to the second communications protocol; generate an application layer header for the data packet communications; store values of the fragmentation data in select fields of the application layer header; fragment the data packet communications according to the data packet fragmentation protocol; and transmit the data packet communications including the application layer header over the identified network interface.
摘要翻译：根据本公开的一个方面，一种用于在计算环境中通过多个协议接口进行通信的系统包括处理器和存储器，其存储可由所述处理器执行的接口逻辑，以便：识别用于出口数据分组通信的网络接口的第一通信协议 ; 响应于所识别的与要用于数据分组通信的第二通信协议不同的网络接口的第一通信协议，根据与第二通信协议相对应的数据分组分段协议导出分段数据; 生成用于数据包通信的应用层报头; 存储应用层头部的选择字段中的分段数据的值; 根据数据包分片协议分段数据包通信; 并通过所识别的网络接口发送包括应用层报头的数据分组通信。

7. 发明申请

US20150169418A1 Priming Failover of Stateful Offload Adapters 有权
标题翻译：启动状态卸载适配器的故障切换
公开(公告)号：US20150169418A1
公开(公告)日：2015-06-18
申请号：US14103937
申请日：2013-12-12
申请人： International Business Machines Corporation
发明人： Omar Cardona , Matthew R. Ochs , Vikramjit Sethi
IPC分类号： G06F11/20 , G06F15/173
CPC分类号： G06F11/203 , G06F11/1658 , G06F11/2005 , G06F11/2033 , G06F15/17331
摘要： Mechanisms, in a data processing system comprising a first adapter and second adapter, for performing a failover operation from the first adapter to the second adapter are provided. The mechanisms detect that an imminent failure of the first adapter is likely to occur and initiate a failover priming operation in the first adapter and second adapter in response to detecting the imminent failure. The failover priming operation configures ingress and egress buffers of the second adapter to have a similar configuration to ingress and egress buffers of the first adapter. The mechanisms migrate processing of ingress data traffic to the second adapter prior to failure of the first adapter such that the first adapter processes egress data traffic from the data processing system and the second adapter processes ingress data traffic to the data processing system.
摘要翻译：提供了在包括第一适配器和第二适配器的数据处理系统中用于执行从第一适配器到第二适配器的故障转移操作的机制。这些机制检测到可能发生第一适配器即将发生的故障，并响应于检测到即将发生的故障，在第一适配器和第二适配器中启动故障转移启动操作。故障转移启动操作将第二个适配器的入口和出口缓冲区配置为具有与第一个适配器的入口和出口缓冲区类似的配置。这些机制在第一适配器故障之前将入口数据业务处理迁移到第二适配器，使得第一适配器处理来自数据处理系统的出口数据业务，并且第二适配器处理到数据处理系统的入口数据业务。

8. 发明申请

US20150095472A1 Resource Affinity Via Dynamic Reconfiguration for Multi-Queue Network Adapters 审中-公开
标题翻译：通过动态重新配置多队列网络适配器的资源亲和力
公开(公告)号：US20150095472A1
公开(公告)日：2015-04-02
申请号：US14566253
申请日：2014-12-10
申请人： International Business Machines Corporation
发明人： Omar Cardona , James B. Cunningham , Matthew R. Ochs , Rakesh Sharma
IPC分类号： H04L29/12 , H04L12/24
CPC分类号： H04L61/2015 , G06F9/505 , H04L41/082
摘要： A mechanism is provided for providing resource affinity for multi-queue network adapters via dynamic reconfiguration. A device driver allocates an initial queue pair within a memory. The device driver determines whether workload of the data processing system has risen above a predetermined high threshold. Responsive to the workload rising above the predetermined high threshold, the device driver allocates and initializes an additional queue pair in the memory. The device driver programs a receive side scaling (RSS) mechanism in a network adapter to allow for dynamic insertion of an additional processing engine associated with the additional queue pair. The device driver enables transmit tuple hashing to the additional queue pair.
摘要翻译：提供了一种通过动态重新配置为多队列网络适配器提供资源亲和力的机制。设备驱动程序在内存中分配初始队列对。设备驱动程序确定数据处理系统的工作负荷是否已经升高到高于预定的高阈值。响应于高于预定高阈值的工作负载，设备驱动程序在存储器中分配和初始化附加的队列对。设备驱动程序在网络适配器中编程接收侧缩放（RSS）机制，以允许动态插入与附加队列对相关联的附加处理引擎。设备驱动程序使传输元组哈希附加到附加队列对。

9. 发明授权

US11620154B2 Suppressing interrupts to an application thread 有权
公开(公告)号：US11620154B2
公开(公告)日：2023-04-04
申请号：US16732856
申请日：2020-01-02
申请人： International Business Machines Corporation
发明人： Dirk Michel , Bret R. Olszewski , Matthew R. Ochs
IPC分类号： G06F9/48
摘要： In a computing system, an application thread is executed on a hardware thread. Based on a configuration of the computing system, a first threshold is determined comprising a threshold percentage of execution time spent servicing a set of interrupts to the application thread relative to a total execution time for the hardware thread. For the hardware thread, a length of a first time period spent servicing an interrupt in the set of interrupts and a length of a second time period spent executing the application thread are measured. A cumulative percentage of execution time spent in the first time period relative to execution time spent in the first time period and the second time period is calculated. Responsive to the cumulative percentage being above the threshold percentage, interrupt servicing on the hardware thread is disabled.

10. 发明授权

US11121972B2 Multicast message filtering in virtual environments 有权
公开(公告)号：US11121972B2
公开(公告)日：2021-09-14
申请号：US16524036
申请日：2019-07-27
申请人： International Business Machines Corporation
发明人： Omar Cardona , James B. Cunningham , Baltazar De Leon, III , Matthew R. Ochs
IPC分类号： H04L29/06 , G06F9/455 , H04L12/741 , H04L12/18 , G06F9/54 , H04L12/58
摘要： Various systems, processes, and products may be used to filter multicast messages in virtual environments. In one implementation, a multicast filtering address is received by a network adapter. A frequency of use of the multicast filtering address is determined and, based on the frequency of use of the multicast filtering address, the multicast filtering address is stored in either a multicast filtering store of the network adapter or a local filtering store of a respective virtual machine.

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