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1. 发明授权

US07590819B2 Compact memory management unit 有权
标题翻译：紧凑型内存管理单元
公开(公告)号：US07590819B2
公开(公告)日：2009-09-15
申请号：US11124536
申请日：2005-05-09
申请人： Stephen B. Johnson , Brad D. Besmer , Timothy E. Hoglund , Jana L. Richards
发明人： Stephen B. Johnson , Brad D. Besmer , Timothy E. Hoglund , Jana L. Richards
IPC分类号： G06F12/00 , G06F9/26 , G06F9/34
CPC分类号： G06F12/0292
摘要： A memory management unit (MMU) for a device controller that provides enhanced functionality while maintaining a small physical size or footprint, such that the die size required to manufacture the memory management unit circuitry within the device controller integrated circuit device remains small notwithstanding such enhanced functionality. This compact/tiny MMU provides virtual memory addressing and memory error detection functionality while maintaining a small physical die size. The small physical die size with enhanced functionality is obtained by improvements in translating virtual to physical addressing without use of extensive translation tables, which themselves would otherwise consume memory and associated die real estate. In addition, the MMU allows a firmware image containing code and data segments to be run-time swapped between internal shared context RAM and external memory.
摘要翻译：一种用于设备控制器的存储器管理单元（MMU），其在保持小的物理尺寸或占地面积的同时提供增强的功能，使得制造设备控制器集成电路设备内的存储器管理单元电路所需的管芯尺寸仍然很小，尽管具有这种增强的功能。这种紧凑型/微型MMU提供虚拟内存寻址和内存错误检测功能，同时保持较小的物理裸片大小。具有增强功能的小型物理尺寸通过改进虚拟到物理寻址的改进而获得，而不使用广泛的翻译表，其本身将消耗存储器和相关的裸片空间。此外，MMU允许包含代码和数据段的固件映像在内部共享上下文RAM和外部存储器之间进行运行时交换。

2. 发明授权

US07054972B2 Apparatus and method for dynamically enabling and disabling interrupt coalescing in data processing system 有权
标题翻译：在数据处理系统中动态启用和禁用中断合并的装置和方法
公开(公告)号：US07054972B2
公开(公告)日：2006-05-30
申请号：US10319206
申请日：2002-12-13
申请人： Owen N. Parry , Brad D. Besmer , Stephen B. Johnson
发明人： Owen N. Parry , Brad D. Besmer , Stephen B. Johnson
IPC分类号： G06F13/24
CPC分类号： G06F13/24
摘要： An apparatus and method for dynamically enabling and disabling interrupt coalescing in a data processing system. The present invention involves consistently monitoring IO load on an IOP of an IO adapter. The firmware on the IO adapter may have a global variable that stores counters for PCI function registers. Each counter tracks the number of outstanding IOs of a corresponding PCI function register. The counter is incremented whenever a new IO is received and is decremented upon posting the completed message back to the OS. A timer interrupt is generated periodically so that an ISR may be periodically performed. In the ISR, the maximum value stored of each counter seen since last timer interrupt is analyzed. When the maximum value stored is greater than a predetermined threshold value, the interrupt coalescing is enabled.
摘要翻译：一种用于在数据处理系统中动态地启用和禁用中断合并的装置和方法。本发明涉及持续监视IO适配器的IOP上的IO负载。 IO适配器上的固件可能有一个全局变量，用于存储PCI功能寄存器的计数器。每个计数器跟踪相应PCI功能寄存器的未完成IO的数量。每当接收到新的IO时，计数器递增，并且在将完成的消息发回操作系统后递减。周期性地产生定时中断，以便周期性地执行ISR。在ISR中，分析从上一次定时器中断以来看到的每个计数器存储的最大值。当存储的最大值大于预定阈值时，中断合并被使能。

3. 发明授权

US07155569B2 Method for raid striped I/O request generation using a shared scatter gather list 有权
公开(公告)号：US07155569B2
公开(公告)日：2006-12-26
申请号：US10184667
申请日：2002-06-28
申请人： Stephen B. Johnson , Brad D. Besmer
发明人： Stephen B. Johnson , Brad D. Besmer
IPC分类号： G06F13/14
CPC分类号： G06F3/0601 , G06F2003/0697
摘要： A code efficient transfer method in response to a single host I/O request generates a single scatter gather list. The disk array controller transforms the single host I/O request into multiple physical I/O requests. Each of these multiple physical I/O requests uses the single scatter gather list to perform the data transfer operation. Each physical I/O request corresponds to the data transfer of one data stripe. The data stripe is an initial or header stripe of about 0.5K or a stripe of at least 64K.

4. 发明授权

US07007036B2 Method and apparatus for embedding configuration data 失效
公开(公告)号：US07007036B2
公开(公告)日：2006-02-28
申请号：US10109285
申请日：2002-03-28
申请人： Christopher J. McCarty , Stephen B. Johnson , Brad D. Besmer
发明人： Christopher J. McCarty , Stephen B. Johnson , Brad D. Besmer
IPC分类号： G06F7/00
CPC分类号： G06F9/44505 , Y10S707/99931 , Y10S707/99943
摘要： The present invention provides an apparatus and a method for embedding information from a first configuration data set having data structures into an embedded processing system, wherein embedding the information maintains user-defined variables. Embedding information includes comparing a first identifier from the first configuration data set with a second identifier from a second configuration data set having data structures to determine if the first identifier differs from the second identifier. In response to a determination of the first identifier differing from the second identifier, a decision is made to merge the first configuration data set with the second configuration data set to form a merged configuration data set. Afterwards, the merged configuration data set is written to the embedded processing system, wherein the merged configuration data set includes maintained user-defined variables.

5. 发明申请

US20130268492A1 Method and System for Efficient Write Journal Entry Management for a Distributed File System 有权
标题翻译：分布式文件系统高效写入日志管理的方法和系统
公开(公告)号：US20130268492A1
公开(公告)日：2013-10-10
申请号：US13896186
申请日：2013-05-16
申请人： Paul E. Soulier , Brad D. Besmer
发明人： Paul E. Soulier , Brad D. Besmer
IPC分类号： G06F17/30
CPC分类号： G06F17/30191 , G06F17/30194
摘要： The present invention is directed to a method and system for efficient write journal entry management maintaining minimum write journal information stored in a nonvolatile memory through utilizing an additional structure in a fast volatile memory. The method and system may manage write journaling of a file volume including multiple fixed sized regions and assign a persistent 1-bit synchronization status (the write journal information) to each data region. In addition, a non-persistent I/O counter (the additional structure) for each region to manage the persistent 1-bit synchronization status during run-time. The present invention may provide a mechanism to determine when write I/O operations have not successfully completed to a specific region of the file volume.
摘要翻译：本发明涉及一种用于通过利用快速易失性存储器中的附加结构来保存存储在非易失性存储器中的最小写入日志信息的用于高效写入日记帐入口管理的方法和系统。方法和系统可以管理包括多个固定大小区域的文件卷的写入日志记录，并将持久性1位同步状态（写入日志信息）分配给每个数据区域。另外还有一个用于每个区域的非持久I / O计数器（附加结构），用于在运行期间管理持久的1位同步状态。本发明可以提供一种用于确定何时写入I / O操作未成功完成到文件卷的特定区域的机制。

6. 发明授权

US08219719B1 SAS controller with persistent port configuration 有权
标题翻译：具有持久端口配置的SAS控制器
公开(公告)号：US08219719B1
公开(公告)日：2012-07-10
申请号：US13021890
申请日：2011-02-07
申请人： Owen Parry , Brad D. Besmer , Ming-Jen Wang
发明人： Owen Parry , Brad D. Besmer , Ming-Jen Wang
IPC分类号： G06F3/00 , G06F13/00
CPC分类号： G06F13/385 , G06F3/0605 , G06F3/0632 , G06F3/0634 , G06F3/0676 , G06F11/3041 , G06F11/3051 , G06F2213/0028
摘要： An apparatus and method are disclosed for maintaining consistent port and PHY configuration information in an SAS controller when connected SAS devices are rebooted, reset or otherwise temporarily disconnected. Configuration information is stored in non-volatile memory, and restored by a methodology to prevent port conflicts.
摘要翻译：公开了一种用于在连接的SAS设备重新启动，重新设置或以其他方式暂时断开连接时在SAS控制器中维持一致的端口和PHY配置信息的装置和方法。配置信息存储在非易失性存储器中，并通过一种方法进行恢复，以防止端口冲突。

7. 发明授权

US07500070B2 Methods and apparatus for improved RAID 1 mirror re-synchronization 失效
标题翻译：改进RAID 1镜像重新同步的方法和设备
公开(公告)号：US07500070B2
公开(公告)日：2009-03-03
申请号：US11508473
申请日：2006-08-23
申请人： Jason B. Schilling , Brad D. Besmer
发明人： Jason B. Schilling , Brad D. Besmer
IPC分类号： G06F13/00
CPC分类号： G06F11/2082
摘要： Systems and methods for improving performance of a re-synchronization process in a RAID level 1 storage system. In one aspect a local cache memory associated with the second or mirrored disk drive is enabled during the re-synchronization operation but left disabled during normal operation processing host requests. The cache is flushed to the persistent medium of the second disk drive before resuming normal I/O request processing. In another aspect normal I/O request processing is interleaved with portions of the processing for re-synchronization of the mirrored disk drive. Normal I/O request processing proceeds for a first period of time. Re-synchronization processing for a portion of the mirrored information then proceeds (with local cache memory of the mirrored disk drive enabled) for a second period of time.
摘要翻译：用于提高RAID 1级存储系统中重新同步过程性能的系统和方法。在一个方面，在重新同步操作期间启用与第二或镜像磁盘驱动器相关联的本地高速缓冲存储器，但在正常操作处理主机请求期间被禁用。在恢复正常的I / O请求处理之前，缓存被刷新到第二个磁盘驱动器的持久介质。在另一方面，正常I / O请求处理与用于镜像磁盘驱动器的重新同步的处理的部分进行交织。正常I / O请求处理在第一时间段内进行。然后，针对一部分镜像信息的再同步处理继续（启用镜像磁盘驱动器的本地高速缓存），持续第二时间段。

8. 发明申请

US20140052908A1 METHODS AND STRUCTURE FOR NORMALIZING STORAGE PERFORMANCE ACROSS A PLURALITY OF LOGICAL VOLUMES 有权
标题翻译：通过多个逻辑卷正常化存储性能的方法和结构
公开(公告)号：US20140052908A1
公开(公告)日：2014-02-20
申请号：US13586133
申请日：2012-08-15
申请人： Nilesh S. Govande , Jameer Babasaheb Mulani , Brad D. Besmer , Susan Gray
发明人： Nilesh S. Govande , Jameer Babasaheb Mulani , Brad D. Besmer , Susan Gray
IPC分类号： G06F12/02
CPC分类号： G06F3/061 , G06F3/0628 , G06F3/0631 , G06F3/067 , G06F3/0673 , G06F12/02
摘要： Methods and structure are disclosed for normalizing storage performance across a plurality of logical volumes. One embodiment is a storage controller. The storage controller is adapted to couple with a plurality of host systems and a storage device. The storage controller is adapted to receive one or more requests to create logical volumes for the plurality of hose systems, and adapted to identify a plurality of performance zones for storage areas of the storage device. The performance zones exhibit different performance criteria for one or more of: reading data from the storage device and writing data to the storage device. The storage controller is further adapted to allocate storage from each of the plurality of performance zones for each of the plurality of logical volumes such that the performance criteria for accessing the storage device is distributed substantially uniformly across the plurality of logical volumes.
摘要翻译：公开了用于在多个逻辑卷上归一化存储性能的方法和结构。一个实施例是存储控制器。存储控制器适于与多个主机系统和存储设备耦合。存储控制器适于接收一个或多个请求以为多个软管系统创建逻辑卷，并且适于识别用于存储设备的存储区域的多个性能区域。性能区域对于以下中的一个或多个呈现不同的性能标准：从存储设备读取数据并将数据写入存储设备。存储控制器还适于为多个逻辑卷中的每一个为多个性能区域中的每一个分配存储，使得用于访问存储设备的性能标准基本上均匀地分布在多个逻辑卷上。

9. 发明申请

US20080052574A1 Circuits and associated methods for improved debug and test of an application integrated circuit 失效
标题翻译：用于改进应用集成电路调试和测试的电路和相关方法
公开(公告)号：US20080052574A1
公开(公告)日：2008-02-28
申请号：US11508585
申请日：2006-08-23
申请人： Paul J. Smith , Brad D. Besmer , Guy W. Kendall
发明人： Paul J. Smith , Brad D. Besmer , Guy W. Kendall
IPC分类号： G01R31/28
CPC分类号： G01R31/31703 , G01R31/31724
摘要： Circuits and associated methods for testing internal operation of an application integrated circuit. Features and aspects hereof add configurable test interrupt circuits to an application circuit design to permit dynamic, configurable interrupt generation from an integrated circuit based on conditions determined from monitoring of internal signals of the application circuit. The internal signals that may be tested and used to generate test interrupts are those not exposed to the external processor interface of the integrated circuit and thus may be configured to interrupt based on any internal state of the application specific functional circuits of the integrated circuit.
摘要翻译：用于测试应用集成电路内部操作的电路和相关方法。此处的特征和方面将可配置的测试中断电路添加到应用电路设计，以允许基于从监视应用电路的内部信号确定的条件从集成电路产生动态的可配置中断。可以测试和用于产生测试中断的内部信号是不暴露于集成电路的外部处理器接口的内部信号，因此可以被配置为基于集成电路的专用功能电路的任何内部状态进行中断。

10. 发明申请

US20080052457A1 Methods and apparatus for improved raid 1 mirror re-synchronization 失效
标题翻译：改进raid 1镜像重新同步的方法和装置
公开(公告)号：US20080052457A1
公开(公告)日：2008-02-28
申请号：US11508473
申请日：2006-08-23
申请人： Jason B. Schilling , Brad D. Besmer
发明人： Jason B. Schilling , Brad D. Besmer
IPC分类号： G06F13/00 , G06F12/16
CPC分类号： G06F11/2082
摘要： Systems and methods for improving performance of a re-synchronization process in a RAID level 1 storage system. In one aspect a local cache memory associated with the second or mirrored disk drive is enabled during the re-synchronization operation but left disabled during normal operation processing host requests. The cache is flushed to the persistent medium of the second disk drive before resuming normal I/O request processing. In another aspect normal I/O request processing is interleaved with portions of the processing for re-synchronization of the mirrored disk drive. Normal I/O request processing proceeds for a first period of time. Re-synchronization processing for a portion of the mirrored information then proceeds (with local cache memory of the mirrored disk drive enabled) for a second period of time.
摘要翻译：用于提高RAID 1级存储系统中重新同步过程性能的系统和方法。在一个方面，在重新同步操作期间启用与第二或镜像磁盘驱动器相关联的本地高速缓冲存储器，但在正常操作处理主机请求期间被禁用。在恢复正常的I / O请求处理之前，缓存被刷新到第二个磁盘驱动器的持久介质。在另一方面，正常I / O请求处理与用于镜像磁盘驱动器的重新同步的处理的部分交错。正常I / O请求处理在第一时间段内进行。然后，针对一部分镜像信息的再同步处理继续（启用镜像磁盘驱动器的本地高速缓存），持续第二时间段。

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