Selecting direct memory access engines in an adaptor input/output (I/O) requests received at the adaptor
    1.
    发明授权
    Selecting direct memory access engines in an adaptor input/output (I/O) requests received at the adaptor 有权
    在适配器上接收的适配器输入/输出(I / O)请求中选择直接内存访问引擎

    公开(公告)号:US08904058B2

    公开(公告)日:2014-12-02

    申请号:US13118093

    申请日:2011-05-27

    IPC分类号: G06F13/28 G06F13/00 G06F9/50

    摘要: Provided are a computer program product, system, and method for selecting Direct Memory Access (DMA) engines in an adaptor for processing Input/Output requests received at the adaptor. A determination is made of an assignment of a plurality of processors to the DMA engines, wherein each processor is assigned to use one of the DMA engines. I/O request related work for a received I/O request directed to the storage is processed by determining the DMA engine assigned to the processor processing the I/O request related work and accessing the determined DMA engine to perform the I/O related work.

    摘要翻译: 提供了一种用于在适配器中选择直接存储器访问(DMA)引擎以用于处理在适配器处接收的输入/输出请求的计算机程序产品,系统和方法。 确定将多个处理器分配给DMA引擎,其中分配每个处理器以使用DMA引擎之一。 通过确定分配给处理器的处理I / O请求相关工作的DMA引擎并访问确定的DMA引擎来执行与I / O相关的工作来处理针对存储器的接收的I / O请求的I / O请求相关工作 。

    SELECTING DIRECT MEMORY ACCESS ENGINES IN AN ADAPTOR FOR PROCESSING INPUT/OUTPUT (I/O) REQUESTS RECEIVED AT THE ADAPTOR
    2.
    发明申请
    SELECTING DIRECT MEMORY ACCESS ENGINES IN AN ADAPTOR FOR PROCESSING INPUT/OUTPUT (I/O) REQUESTS RECEIVED AT THE ADAPTOR 有权
    在适配器中选择直接存储器访问引擎,用于处理在适配器中接收的输入/输出(I / O)请求

    公开(公告)号:US20120303842A1

    公开(公告)日:2012-11-29

    申请号:US13118093

    申请日:2011-05-27

    IPC分类号: G06F13/28

    摘要: Provided are a computer program product, system, and method for selecting Direct Memory Access (DMA) engines in an adaptor for processing Input/Output requests received at the adaptor. A determination is made of an assignment of a plurality of processors to the DMA engines, wherein each processor is assigned to use one of the DMA engines. I/O request related work for a received I/O request directed to the storage is processed by determining the DMA engine assigned to the processor processing the I/O request related work and accessing the determined DMA engine to perform the I/O related work.

    摘要翻译: 提供了一种用于在适配器中选择直接存储器访问(DMA)引擎以用于处理在适配器处接收的输入/输出请求的计算机程序产品,系统和方法。 确定将多个处理器分配给DMA引擎,其中分配每个处理器以使用DMA引擎之一。 通过确定分配给处理器的处理I / O请求相关工作的DMA引擎并访问确定的DMA引擎来执行与I / O相关的工作来处理针对存储器的接收的I / O请求的I / O请求相关工作 。

    INTER-PROCESSOR FAILURE DETECTION AND RECOVERY
    3.
    发明申请
    INTER-PROCESSOR FAILURE DETECTION AND RECOVERY 有权
    处理器故障检测和恢复

    公开(公告)号:US20120089861A1

    公开(公告)日:2012-04-12

    申请号:US12902501

    申请日:2010-10-12

    IPC分类号: G06F11/07 G06F11/00

    CPC分类号: G06F11/0757 G06F11/0724

    摘要: An approach to detecting processor failure in a multi-processor environment is disclosed. The approach may include having each CPU in the system responsible for monitoring another CPU in the system. A CPUn reads a timestampn+1 created by CPUn+1 which CPUn is monitoring from a shared memory location. The CPUn reads its own timestampn and compares the two timestamps to calculate a delta value. If the delta value is above a threshold, the CPUn determines that CPUn+1 has failed and initiates error handling for the CPUs in the system. One CPU may be designated a master CPU, and be responsible for beginning the error handling process. In such embodiments, the CPUn may initiate error handling by notifying the master CPU that CPUn+1 has failed. If CPUn+1 is the master CPU, the CPUn may take additional steps to initiate error handling, and may broadcast a non-critical interrupt to all CPUs, triggering error handling.

    摘要翻译: 公开了一种在多处理器环境中检测处理器故障的方法。 该方法可以包括使系统中的每个CPU负责监视系统中的另一个CPU。 CPUn读取CPUn + 1创建的时间戳+1,CPUn正在从共享内存位置进行监控。 CPUn读取自己的时间戳,并比较两个时间戳来计算增量值。 如果增量值高于阈值,CPUn确定CPUn + 1失败,并启动系统中CPU的错误处理。 一个CPU可能被指定为主CPU,并负责开始错误处理过程。 在这种实施例中,CPUn可以通过通知主CPU CPUn + 1失败来启动错误处理。 如果CPUn + 1是主CPU,CPUn可能会采取额外的步骤来启动错误处理,并可能会向所有CPU广播非关键中断,从而触发错误处理。

    Inter-processor failure detection and recovery
    4.
    发明授权
    Inter-processor failure detection and recovery 有权
    处理器间故障检测和恢复

    公开(公告)号:US08850262B2

    公开(公告)日:2014-09-30

    申请号:US12902501

    申请日:2010-10-12

    IPC分类号: G06F11/00 G06F11/07

    CPC分类号: G06F11/0757 G06F11/0724

    摘要: An approach to detecting processor failure in a multi-processor environment is disclosed. The approach may include having each CPU in the system responsible for monitoring another CPU in the system. A CPUn reads a timestampn+1 created by CPUn+1 which CPUn is monitoring from a shared memory location. The CPUn reads its own timestampn and compares the two timestamps to calculate a delta value. If the delta value is above a threshold, the CPUn determines that CPUn+1 has failed and initiates error handling for the CPUs in the system. One CPU may be designated a master CPU, and be responsible for beginning the error handling process. In such embodiments, the CPUn may initiate error handling by notifying the master CPU that CPUn+1 has failed. If CPUn+1 is the master CPU, the CPUn may take additional steps to initiate error handling, and may broadcast a non-critical interrupt to all CPUs, triggering error handling.

    摘要翻译: 公开了一种在多处理器环境中检测处理器故障的方法。 该方法可以包括使系统中的每个CPU负责监视系统中的另一个CPU。 CPUn读取CPUn + 1创建的时间戳+1,CPUn正在从共享内存位置进行监控。 CPUn读取自己的时间戳,并比较两个时间戳来计算增量值。 如果增量值高于阈值,CPUn确定CPUn + 1失败,并启动系统中CPU的错误处理。 一个CPU可能被指定为主CPU,并负责开始错误处理过程。 在这种实施例中,CPUn可以通过通知主CPU CPUn + 1失败来启动错误处理。 如果CPUn + 1是主CPU,CPUn可能会采取额外的步骤来启动错误处理,并可能会向所有CPU广播非关键中断,从而触发错误处理。

    Systems and methods for detecting supported small form-factor pluggable (SFP) devices
    7.
    发明授权
    Systems and methods for detecting supported small form-factor pluggable (SFP) devices 有权
    用于检测支持的小型可插拔(SFP)设备的系统和方法

    公开(公告)号:US08769173B2

    公开(公告)日:2014-07-01

    申请号:US12904721

    申请日:2010-10-14

    IPC分类号: G06F13/12 G06F13/00

    摘要: Systems and methods for detecting supported small form-factor pluggable (SFP) devices in an adapter are provided. One system includes multiple ports, each port configured to be coupled to a SFP device, a tracking device configured to store data representing a list of supported SFP devices for the adapter, and a processor coupled to each of the plurality of ports and the tracking device. The processor is configured to scan each port at start-up, determine if any of the ports is coupled to a non-supported SFP device, and disable any ports that are coupled to a non-supported SFP device. One method includes scanning each port at start-up, determining if any of the ports is coupled to a non-supported SFP device, and disabling any ports that are coupled to a non-supported SFP device. Also provided are computer storage mediums including computer code for performing the above method.

    摘要翻译: 提供了用于检测适配器中支持的小型可插拔(SFP)设备的系统和方法。 一个系统包括多个端口,每个端口被配置为耦合到SFP设备,跟踪设备被配置为存储表示用于适配器的支持的SFP设备的列表的数据,以及耦合到多个端口中的每个端口的跟踪设备 。 处理器配置为在启动时扫描每个端口,确定是否有任何端口耦合到不支持的SFP设备,并禁用耦合到不支持SFP设备的任何端口。 一种方法包括在启动时扫描每个端口,确定是否有任何端口耦合到不支持的SFP设备,以及禁用耦合到不支持SFP设备的任何端口。 还提供了包括用于执行上述方法的计算机代码的计算机存储介质。

    MULTIPLE CRC INSERTION IN AN OUTPUT DATA STREAM
    8.
    发明申请
    MULTIPLE CRC INSERTION IN AN OUTPUT DATA STREAM 有权
    输出数据流中的多个CRC插入

    公开(公告)号:US20090210769A1

    公开(公告)日:2009-08-20

    申请号:US12030938

    申请日:2008-02-14

    IPC分类号: H03M13/00

    摘要: A computer program product, apparatus, and method for inserting multiple CRCs in an output data stream from a channel subsystem to a control unit are provided. The computer program product includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method. The method includes receiving a message to transmit from the channel subsystem to the control unit. The method also includes determining a first CRC insertion position, and receiving a first CRC calculated over a first block of data in the message. The method additionally includes inserting the first calculated CRC at the first CRC insertion position, and determining a second CRC insertion position. The method further includes receiving a second CRC calculated over a second block of data in the message, and inserting the second calculated CRC at the second CRC insertion position.

    摘要翻译: 提供了一种用于在从信道子系统到控制单元的输出数据流中插入多个CRC的计算机程序产品,装置和方法。 计算机程序产品包括可由处理电路读取的有形存储介质,并且存储由处理电路执行以执行方法的指令。 该方法包括接收从信道子系统发送到控制单元的消息。 该方法还包括确定第一CRC插入位置,以及接收通过消息中的第一数据块计算的第一CRC。 该方法还包括在第一CRC插入位置插入第一计算的CRC,以及确定第二CRC插入位置。 该方法还包括接收通过消息中的第二数据块计算的第二CRC,以及将第二计算CRC插入到第二CRC插入位置。

    PROVIDING EXTENDED MEASUREMENT DATA IN AN I/O PROCESSING SYSTEM
    10.
    发明申请
    PROVIDING EXTENDED MEASUREMENT DATA IN AN I/O PROCESSING SYSTEM 有权
    在I / O处理系统中提供扩展的测量数据

    公开(公告)号:US20090210582A1

    公开(公告)日:2009-08-20

    申请号:US12030951

    申请日:2008-02-14

    IPC分类号: G06F3/00

    CPC分类号: G06F13/124

    摘要: An article of manufacture, an apparatus, and a method for providing extended measurement word data from a control unit to a channel subsystem of an I/O processing system are disclosed. The article of manufacture includes at least one computer usable medium having computer readable program code logic. The computer readable program code logic performs a method including receiving a command message from the channel subsystem at the control unit, and initiating a timing calculation sequence of a plurality of time values in response to receiving the command message at the control unit. The computer readable program code logic also populates extended measurement word data at the control unit including the plurality of time values, and outputs the extended measurement word data from the control unit to the channel subsystem.

    摘要翻译: 公开了一种用于从控制单元向I / O处理系统的通道子系统提供扩展测量字数据的制造品,设备和方法。 该制品包括具有计算机可读程序代码逻辑的至少一个计算机可用介质。 计算机可读程序代码逻辑执行一种方法,包括在控制单元处从通道子系统接收命令消息,以及响应于在控制单元处接收到命令消息,启动多个时间值的定时计算序列。 计算机可读程序代码逻辑还在包括多个时间值的控制单元处填充扩展测量字数据,并将扩展测量字数据从控制单元输出到通道子系统。