公开(公告)号：US09735871B2

公开(公告)日：2017-08-15

申请号：US14957621

申请日：2015-12-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhong Zhang ,  Sheng Li ,  Yu Hu ,  Xiaoyu Ge ,  Yongyao Li ,  Xin Qiu

IPC: H04B10/50 ,  H04B10/2507 ,  H04B10/079 ,  H04B10/80 ,  G06F13/42

CPC classification number: H04B10/2507 ,  G06F13/4282 ,  H04B10/0799 ,  H04B10/50 ,  H04B10/801

Abstract: A method, an apparatus, and a communication node for suppressing output noises of peripheral component interconnect express (PCIe) devices in optical fiber communication is provided. The communication node includes a PCIe chip and a detection and control circuit connected to a transmitting end of the PCIe chip. The PCIe chip transmits an electrical signal by a transmitter of a first lane. The detection and control circuit detects a differential-mode voltage of the electrical signal. If the differential-mode voltage is lower than a first threshold, the detection and control circuit controls an optical module connected to the PCIe chip not to transmit an optical signal through the first lane of the optical module. When a PCIe system includes the communication node, output noises of the transmitter is suppressed, and a normal optical fiber communication link is ensured.

公开(公告)号：US09384110B2

公开(公告)日：2016-07-05

申请号：US14141154

申请日：2013-12-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoyu Ge

IPC: G06F11/30 ,  G06F13/10 ,  G06F13/42 ,  G06F11/00

CPC classification number: G06F11/3041 ,  G06F11/004 ,  G06F11/3027 ,  G06F11/3055 ,  G06F11/3089 ,  G06F13/105 ,  G06F13/4221 ,  G06F2213/0026 ,  G06F2213/4004

Abstract: Embodiments of the present invention relate to a peripheral component interconnect express endpoint device accessing method, a computer system, and an apparatus. A state of an access request sent by a processor is monitored, and a simulation response message for the access request is sent to the processor when it is determined that the PCIe endpoint device sends no response message for the access request. Therefore, according to the simulation response message, the processor can confirm completion of the procedure corresponding to the previously sent access request, and shut down a timer for timing the access request and clear the buffered access request, thereby keeping normal processing in the processor and avoiding the MCE resetting problem that arises from accumulation of access requests in the processor.

公开(公告)号：US09323635B2

公开(公告)日：2016-04-26

申请号：US14706667

申请日：2015-05-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoyu Ge

IPC: G06F11/30 ,  G06F13/10 ,  G06F13/42 ,  G06F11/00

CPC classification number: G06F11/3041 ,  G06F11/004 ,  G06F11/3027 ,  G06F11/3055 ,  G06F11/3089 ,  G06F13/105 ,  G06F13/4221 ,  G06F2213/0026 ,  G06F2213/4004

Abstract: Embodiments of the present invention relate to a peripheral component interconnect express endpoint device accessing method, a computer system, and an apparatus. A state of an access request sent by a processor is monitored, and a simulation response message for the access request is sent to the processor when it is determined that the PCIe endpoint device sends no response message for the access request. Therefore, according to the simulation response message, the processor can confirm completion of the procedure corresponding to the previously sent access request, and shut down a timer for timing the access request and clear the buffered access request, thereby keeping normal processing in the processor and avoiding the MCE resetting problem that arises from accumulation of access requests in the processor.

Abstract translation: 本发明的实施例涉及外围组件互连快速终端设备访问方法，计算机系统和设备。 监视由处理器发送的访问请求的状态，并且当确定PCIe端点设备不发送针对访问请求的响应消息时，向处理器发送用于访问请求的模拟响应消息。 因此，根据仿真响应消息，处理器可以确认与先前发送的访问请求相对应的过程的完成，并且关闭用于定时访问请求的定时器并清除缓冲的访问请求，从而在处理器中保持正常处理， 避免了处理器中访问请求的累积引起的MCE重置问题。