公开(公告)号：US20110258352A1

公开(公告)日：2011-10-20

申请号：US12764002

申请日：2010-04-20

申请人： James B. WILLIAMS ,  Shawn Adam Clayton ,  Maria Clara Gutierrez ,  Alexander Nicolson, IV ,  James Winston Smart ,  John Leland Wood ,  David James Duckman ,  Carl John Lindeborg ,  William Irving Leavitt

发明人： James B. WILLIAMS ,  Shawn Adam Clayton ,  Maria Clara Gutierrez ,  Alexander Nicolson, IV ,  James Winston Smart ,  John Leland Wood ,  David James Duckman ,  Carl John Lindeborg ,  William Irving Leavitt

IPC分类号： G06F13/14 ,  G06F13/28 ,  G06F13/20

CPC分类号： G06F13/16 ,  G06F13/385 ,  G06F13/4068 ,  G06F13/4282 ,  Y02D10/14 ,  Y02D10/151

摘要： A system for enabling input/out virtualization for a device is disclosed. In one embodiment, the system includes a plurality of host CPUs; a multi-root switch connected to each of the plurality of host CPUs via respective buses; and an inline PCI virtualizing device connected to the multi-root switch via a front-side bus and the device via a back-side bus, the inline PCI virtualizing device including a plurality sets of registers, each of the plurality sets of registers accessible by a corresponding host CPU of the plurality of host CPUs and implementing functionalities of the device.

摘要翻译： 公开了一种用于启用设备的输入/输出虚拟化的系统。 在一个实施例中，系统包括多个主机CPU; 通过相应总线连接到多个主机CPU中的每一个的多根交换机; 以及通过前端总线和设备经由背面总线连接到多根交换机的在线PCI虚拟化设备，所述在线PCI虚拟化设备包括多组寄存器，所述多组寄存器中的每一组可由 多个主机CPU的对应主机CPU，并实现该设备的功能。

公开(公告)号：US07644191B2

公开(公告)日：2010-01-05

申请号：US10987429

申请日：2004-11-12

申请人： Alexander Nicolson, IV ,  Gregory John Scherer

发明人： Alexander Nicolson, IV ,  Gregory John Scherer

IPC分类号： G06F3/00

CPC分类号： G06F13/126

摘要： A 32-word command IOCB format is disclosed. A conventional 8-word format is supported, although in both cases 32-word command IOCBs are used. When the conventional 8-word format is used, the host sets the LE bit=1 and writes a conventional 8-word command IOCB into words 0-7 of the 32-word command IOCB. The firmware performs a DMA operation and reads the LE bit. With the LE bit=1, the firmware knows to read only words 0-7. When the new 32-word format is used, the host sets the LE bit=0 and writes a 32-word IOCB command into the 32-word command IOCB, including command and response buffer pointers, one or more data buffer pointers, and perhaps the command buffer. The firmware performs a DMA operation and reads the LE bit. With the LE bit=0, the firmware knows to read all 32 words of the command IOCB.

摘要翻译： 公开了32字命令IOCB格式。 支持常规的8字格式，尽管在这两种情况下都使用32字命令IOCB。 当使用传统的8字格式时，主机设置LE位= 1，并将传统的8字命令IOCB写入32字命令IOCB的字0-7。 固件执行DMA操作并读取LE位。 当LE位= 1时，固件知道只读0-7字。 当使用新的32字格式时，主机设置LE位= 0，并将32字IOCB命令写入32字命令IOCB，包括命令和响应缓冲区指针，一个或多个数据缓冲区指针，也许 命令缓冲区。 固件执行DMA操作并读取LE位。 当LE位= 0时，固件知道读取命令IOCB的所有32个字。

公开(公告)号：US09852087B2

公开(公告)日：2017-12-26

申请号：US12764002

申请日：2010-04-20

申请人： James B. Williams ,  Shawn Adam Clayton ,  Maria Clara Gutierrez ,  Alexander Nicolson, IV ,  James Winston Smart ,  John Leland Wood ,  David James Duckman ,  Carl John Lindeborg ,  William Irving Leavitt

发明人： James B. Williams ,  Shawn Adam Clayton ,  Maria Clara Gutierrez ,  Alexander Nicolson, IV ,  James Winston Smart ,  John Leland Wood ,  David James Duckman ,  Carl John Lindeborg ,  William Irving Leavitt

IPC分类号： G06F13/00 ,  G06F13/16 ,  G06F13/38 ,  G06F13/40 ,  G06F13/42

CPC分类号： G06F13/16 ,  G06F13/385 ,  G06F13/4068 ,  G06F13/4282 ,  Y02D10/14 ,  Y02D10/151

摘要： A system for enabling input/out virtualization for a device is disclosed. In one embodiment, the system includes a plurality of host CPUs; a multi-root switch connected to each of the plurality of host CPUs via respective buses; and an inline PCI virtualizing device connected to the multi-root switch via a front-side bus and the device via a back-side bus, the inline PCI virtualizing device including a plurality sets of registers, each of the plurality sets of registers accessible by a corresponding host CPU of the plurality of host CPUs and implementing functionalities of the device.