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    Method and device for selectively stopping dma operation, and data processing system
    1.
    发明专利
    Method and device for selectively stopping dma operation, and data processing system 有权
    用于选择性地停止DMA操作的方法和设备，以及数据处理系统

    公开(公告)号：JP2007287140A

    公开(公告)日：2007-11-01

    申请号：JP2007098505

    申请日：2007-04-04

    Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

    Inventor： THURBER STEVE MARK ,  CARL ALFRED BENDER ,  ADARUBERUTO GIRERUMO YANESU ,  PATRICK ALLEN BATSUKURANDO

    IPC: G06F13/28

    CPC classification number: G06F13/28 ,  G06F12/1081

    Abstract: PROBLEM TO BE SOLVED: To provide a mechanism for temporarily stopping DMA operation selected in a physical I/O adapter in order to allow data to migrate between physical pages which receive accesses by the physical I/O adapter.
    SOLUTION: When receiving a request for DMA to the physical page in a system memory from the I/O adapter, migration in progress display (MIP) bit in a transformation control entry (TCE) pointing to the physical page is examined. The MIP bit expresses whether or not migration to other locations in the system memory with respect to the physical page referred to in the TCE is in process. When the MIP bit expresses that the migration of the physical page is in progress, DMA from the I/O adapter is temporarily stopped, whereas other DMA operation to other physical pages in the system memory from other I/O adapters are permitted to continue.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种临时停止在物理I / O适配器中选择的DMA操作的机制，以便允许数据在物理I / O适配器接收的物理页之间迁移。 解决方案：当从I / O适配器接收到系统内存中的物理页面的DMA请求时，将检查指向物理页面的转换控制条目（TCE）中的迁移进度显示（MIP）位。 MIP位表示是否正在处理相对于TCE中引用的物理页面迁移到系统存储器中的其他位置。 当MIP位表示物理页面的迁移正在进行时，来自I / O适配器的DMA暂时停止，而允许来自其他I / O适配器的系统内存中的其他物理页面的其他DMA操作可以继续。 版权所有（C）2008，JPO＆INPIT

    Method, apparatus, and computer program for failover operation
    3.
    发明专利
    Method, apparatus, and computer program for failover operation 有权
    方法，装置和计算机程序，用于故障操作

    公开(公告)号：JP2012118974A

    公开(公告)日：2012-06-21

    申请号：JP2011245896

    申请日：2011-11-09

    Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

    Inventor： GREGORY M NORDSTORM ,  J ROBERT HERRING ,  PATRICK ALLEN BATSUKURANDO ,  WILLIAM ALAN THOMPSON

    IPC: G06F13/14 ,  G06F11/20 ,  G06F13/38

    CPC classification number: G06F11/2005 ,  G06F11/2007 ,  G06F13/4022 ,  G06F2213/0026

    Abstract: PROBLEM TO BE SOLVED: To provide a failover operation for a connection between a PCIE bridge and an input/output (IO) device.SOLUTION: A first set of bussed bits is exchanged between a first PCIE bridge and a first IO device over a first link using a first set of lanes of the first PCIE bridge. In response to detecting a failure in the first link, the first set of lanes is swapped with a second set of lanes of the first PCIE bridge over a second link using the second set of lanes. The second link connects a second PCIE bridge with a second IO device. In response to detecting the failure in the first link, at an IO device end, the first set of lanes is switched with the second set of lanes for exchanging the second set of bussed bits between the first PCIE bridge and the first IO device over the second link using the second set of lanes.

    Abstract translation: 要解决的问题：为PCIE网桥和输入/输出（IO）设备之间的连接提供故障转移操作。 解决方案：使用第一PCIE桥的第一组通道，通过第一链路在第一PCIE桥和第一IO设备之间交换第一组总线位。 响应于检测到第一链路中的故障，使用第二组通道在第二链路上用第一PCIE桥的第二组通道交换第一组通道。 第二个链路将第二个PCIE网桥连接到第二个IO设备。 响应于检测到第一链路中的故障，在IO设备端，第一组通道与第二组通道交换，用于在第一PCIE桥和第一IO设备之间交换第二组总线位， 使用第二组通道的第二个链接。 版权所有（C）2012，JPO＆INPIT

    SECONDARY INPUT AND OUTPUT BUS HAVING EXTENSION SLOT CAPABILITY AND HOT PLUGGING FUNCTION
    4.
    发明专利
    SECONDARY INPUT AND OUTPUT BUS HAVING EXTENSION SLOT CAPABILITY AND HOT PLUGGING FUNCTION 失效

    公开(公告)号：JPH1074177A

    公开(公告)日：1998-03-17

    申请号：JP12513497

    申请日：1997-05-15

    Applicant: IBM

    Inventor： PATRICK ALLEN BATSUKURANDO ,  RICHARD ALLEN KELLY ,  DANNY MAABUIN NIIRU

    IPC: G06F1/26 ,  G06F13/36 ,  G06F13/40

    Abstract: PROBLEM TO BE SOLVED: To change a specific adaptor card without reducing the total electric power of a computer system by preparing a single connector slot to accept a card that executes a specific function of an input/output device, a memory, etc. SOLUTION: A PCI bridge chip 203 performs the interrupt processing, the transfer of messages, the arbitration, the snooping, etc. Furthermore, a logic and a function are added to attain the conversion of a bus protocol between a system bus and an input/output bus 202. The bus 202 is connected to at least a driver/receiver module 204 which offers an interface between an actual adaptor slot 206 including a connector and the additional logic and the bus 202. The slot 206 accepts an input/output device 208. In such a constitution, a user can replace a specific adaptor card with another without turning off the system power supply.

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