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公开(公告)号：US10223307B2
公开(公告)日：2019-03-05
申请号：US15623429
申请日：2017-06-15
IPC分类号： G06F13/28 , G06F13/42 , G06F12/1027 , G06F12/1009 , G06F12/1081
摘要： Embodiments include a technique for management of data transactions, where the technique includes receiving, at a link interface, a packet from an I/O device, wherein the packet includes address information, and performing, by a host bridge, an address translation for the address information included in the packet. The technique also includes responsive to performing the address translation, determining a target page associated with a translated address of the packet is for at least one of a payload target page or a signaling target page, and appending a flag to a command based at least in part on the target page being associated with the translated address of the packet. The technique includes transmitting the command to an ordering controller for ordering the packet.
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公开(公告)号：US10223305B2
公开(公告)日：2019-03-05
申请号：US15193905
申请日：2016-06-27
IPC分类号： G06F13/42 , G06F15/16 , G06F13/28 , G06F12/1009 , G06F12/0891 , G06F13/40
摘要： A computing system includes a processor and a memory unit that stores program instructions. The system purges an entry from an address translation cache in response to the processor executing the program instructions to perform issuing, via an operating system running on the computing system, a command indicating a request to perform an I/O transaction requiring a translation entry. A host bridge monitors a total data length of the address translation entry to be transferred during the I/O transaction. An address translation entry is selected from an address translation table, loaded into the address translation cache, and data corresponding to the I/O transaction is transferred using the selected address translation entry. The host bridge automatically purges the selected address translation entry from the address translation cache in response to determining the transferred amount of data matches the total data length for the address translation entry.
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23.发明授权公开(公告)号：US09965350B2
公开(公告)日：2018-05-08
申请号：US15281690
申请日：2016-09-30
IPC分类号： G06F11/10 , G06F12/126
CPC分类号： G06F11/1004 , G06F12/0875 , G06F12/1027 , G06F12/1081 , G06F12/126 , G06F2212/1008 , G06F2212/1041 , G06F2212/40 , G06F2212/69 , G06F2212/70
摘要： A method of maintaining a device table cache (DTC) included in a Synchronous input/output (I/O) computing system includes issuing, with a processor executing an operating system running on the Synchronous I/O computing system, a Synchronous I/O command indicating a request to perform a device table entry transaction including a plurality of device table entries. The method also includes determining, with a host bridge processor, based on device table information, whether the device table entry transaction is associated with a cyclic redundancy check (CRC) transaction, and pinning, with the host bridge processor, a device table entry from a device table based on the determination.
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公开(公告)号：US20170097866A1
公开(公告)日：2017-04-06
申请号：US15178788
申请日：2016-06-10
发明人： David F. Craddock , Beth A. Glendening , Matthew J. Kalos , Matthias Klein , Eric N. Lais , Peter G. Sutton , Harry M. Yudenfriend
IPC分类号： G06F11/07
CPC分类号： G06F11/0793 , G06F11/0745 , G06F11/0766 , G06F11/08 , G06F11/14 , G06F13/00
摘要： Aspects include receiving, at an operating system (OS) executing on a server, a notification that an error was detected during execution of a synchronous I/O operation issued by the OS to a persistent storage control unit (SCU). The notification is received from firmware executing on the server and it includes a command response block that includes error condition information about the error. The method can also include selecting, by the OS, a recovery operation for the synchronous I/O operation. The selecting is based on the error condition information about the error in the command response block. The selected recovery option is performed by the OS.
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公开(公告)号：US20170046277A1
公开(公告)日：2017-02-16
申请号：US14929454
申请日：2015-11-02
发明人： Matthias Klein , Marco Kraemer , Carsten Otte , Christoph Raisch
CPC分类号： G06F12/122 , G06F9/5077 , G06F9/52 , G06F12/1009 , G06F12/1027 , G06F12/123 , G06F12/1425 , G06F12/1466 , G06F12/1483 , G06F2212/1024 , G06F2212/1052 , G06F2212/152 , G06F2212/621 , G06F2212/657
摘要： A method for accessing data blocks stored in a computer system. The method may include hardware components for controlling access to a memory unit of the computer system. The memory unit includes a page table and an operating system, where each data block of the data blocks is accessed via a virtual address. The method further includes: adding an entry in the page table for each data block of a first set of the data blocks, the page table represents the virtual address; checking that a first entry of the added entries represents a first virtual address, in response to receiving a request of a first data block via the first virtual address by a memory management unit of the computer system; and obtaining a first physical address of the first data block from the hardware components, and the added entry is provided without indication of the first physical address.
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公开(公告)号：US20160217077A1
公开(公告)日：2016-07-28
申请号：US14606432
申请日：2015-01-27
发明人： Ekaterina M. Ambroladze , Timothy C. Bronson , Garrett M. Drapala , Michael Fee , Matthias Klein , Pak-kin Mak , Robert J. Sonnelitter, III , Gary E. Strait
IPC分类号： G06F12/08
CPC分类号： G06F12/0855 , G06F12/0833 , G06F2212/1021 , G06F2212/608 , G06F2212/621
摘要： Maintaining store order with high throughput in a distributed shared memory system. A request is received for a first ordered data store and a coherency check is initiated. A signal is sent that pipelining of a second ordered data store can be initiated. If a delay condition is encountered during the coherency check for the first ordered data store, rejection of the first ordered data store is signaled. If a delay condition is not encountered during the coherency check for the first ordered data store, a signal is sent indicating a readiness to continue pipelining of the second ordered data store.
摘要翻译： 在分布式共享存储器系统中维护具有高吞吐量的存储顺序。 接收到针对第一有序数据存储的请求，并且启动一致性检查。 发送信号，可以启动第二个有序数据存储的流水线。 如果在第一有序数据存储器的一致性检查期间遇到延迟条件，则发信号通知第一有序数据存储器的拒绝。 如果在第一有序数据存储器的一致性检查期间没有遇到延迟条件，则发送指示准备继续流水线化第二有序数据存储的信号。
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公开(公告)号：US09183041B2
公开(公告)日：2015-11-10
申请号：US13624216
申请日：2012-09-21
发明人： Norbert Hagspiel , Matthias Klein
CPC分类号： G06F9/467 , G06F13/161
摘要： According to one aspect of the present disclosure a system and technique for input/output traffic backpressure prediction is disclosed. The system includes a processor unit and logic executable by the processor unit to: determine, for each of a plurality of memory transactions, a traffic value corresponding to a time for performing the respective memory transactions; responsive to determining the traffic value for a respective memory transaction, determine a median value based on the determined traffic values; determine whether successive median values are incrementing; and responsive to a quantity of successively incrementing median values exceeding a threshold, indicate a prediction of a backpressure condition.
摘要翻译： 根据本公开的一个方面，公开了一种用于输入/输出业务背压预测的系统和技术。 该系统包括处理器单元和可由处理器单元执行的逻辑，用于：对于多个存储器事务中的每一个，确定对应于用于执行各个存储器事务的时间的业务值; 响应于确定相应存储器事务的业务值，基于所确定的业务量确定中值; 确定连续中值是否递增; 并且响应于超过阈值的连续增加的中值的量，指示背压状态的预测。
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公开(公告)号：US20150160962A1
公开(公告)日：2015-06-11
申请号：US14101498
申请日：2013-12-10
CPC分类号： G06F9/45558 , G06F9/45533 , G06F9/4856 , G06F9/5077 , G06F12/1009 , G06F2009/4557 , G06F2009/45583 , G06F2009/45595 , H04L67/1008
摘要： A process can be scheduled between first and second hosts that using a virtual file system that is shared between the hosts can be used. The process, running on a first hypervisor of the first host, can be scheduled to run on a second hypervisor of the second host. A file can be created that includes the data content of the process address space for the file. The file can be mapped address space of the virtual file system. Data from the physical memory of the first host can be transferred to physical memory of the second host using page fault routines.
摘要翻译： 可以在第一和第二主机之间安排进程，使用可以使用主机之间共享的虚拟文件系统。 运行在第一主机的第一虚拟机管理程序上的进程可被安排在第二主机的第二管理程序上运行。 可以创建一个包含文件的进程地址空间的数据内容的文件。 该文件可以映射虚拟文件系统的地址空间。 来自第一主机的物理存储器的数据可以使用页面故障例程传送到第二主机的物理存储器。
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29.发明授权公开(公告)号：US11853212B2
公开(公告)日：2023-12-26
申请号：US17713267
申请日：2022-04-05
发明人： Tu-An T. Nguyen , Matthias Klein , Gregory William Alexander , Jason D. Kohl , Vesselina Papazova
IPC分类号： G06F12/0802
CPC分类号： G06F12/0802 , G06F2212/60
摘要： Embodiments are for preemptive tracking of remote requests for decentralized hot cache line fairness tracking. Authority is requested for a cache line in conjunction with querying for outstanding requests for the cache line. One or more responses are received regarding the outstanding requests for the cache line. In response to receiving the one or more responses regarding the outstanding requests and in advance of receiving the authority for the cache line, the outstanding requests are preemptively tracked in a requested structure associated with the cache line.
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公开(公告)号：US20230315638A1
公开(公告)日：2023-10-05
申请号：US17713264
申请日：2022-04-05
发明人： Tu-An T. Nguyen , Matthias Klein , Gregory William Alexander , Jason D. Kohl , Winston Herring , Timothy Bronson , CHRISTIAN JACOBI
IPC分类号： G06F12/084 , G06F12/0815 , G06F12/0897 , G06F9/38 , G06F9/34
CPC分类号： G06F12/084 , G06F12/0815 , G06F9/34 , G06F9/3816 , G06F12/0897
摘要： Embodiments are for using a decentralized hot cache line tracking fairness mechanism. In response to receiving an incoming request to access a cache line, a determination is made to grant access to the cache line based on a requested state and a serviced state used for maintaining the cache line, a structure comprising the requested and serviced states. In response to the determination to grant access to the cache line, the requested state and the serviced state are transferred along with data of the cache line.
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