公开(公告)号：US20190317774A1

公开(公告)日：2019-10-17

申请号：US16456931

申请日：2019-06-28

申请人： Vinay Raghav ,  Prashant Sethi ,  Robert Gough ,  Reuven Rozic ,  Uri Soloveychik

发明人： Vinay Raghav ,  Prashant Sethi ,  Robert Gough ,  Reuven Rozic ,  Uri Soloveychik

IPC分类号： G06F9/4401 ,  G06F13/38 ,  G06F1/3215

摘要： Automatic-switching and deployment of software (SW)- or firmware (FW)-based USB4 connection managers (CMs) and associated methods, apparatus, software and firmware. A handshake is defined between BIOS and an operating system (OS) to discover supported CM capability and dynamically switch from a FW CM to a SW CM and visa verse if there is a mismatch. In addition, a mechanism is defined to deploy the correct FW or SW CM driver based on class code, 2-part or 4-part ID. Support for continued USB4 operation during an OS upgrade or downgrade is provided, while ensuring that the best possible CM solution is used based on the advertised platform and OS capability. USB4 controllers support a pass-through mode under which the host controller FW redirects control packets sent between an SW CM and a USB4 fabric, and a FW CM mode under which control packets are communicated between the host controller FW and the USB4 fabric to configure USB4 peripheral devices and/or USB4 hubs in the USB4 fabric.

公开(公告)号：US20190155361A1

公开(公告)日：2019-05-23

申请号：US16258355

申请日：2019-01-25

申请人： Dmitriy Berchanskiy ,  Vinay Raghav ,  Udaya Natarajan ,  Huimin Chen

发明人： Dmitriy Berchanskiy ,  Vinay Raghav ,  Udaya Natarajan ,  Huimin Chen

IPC分类号： G06F1/329 ,  G06F1/3287 ,  G06F1/3228 ,  G06F1/26

摘要： Embodiments may include systems and methods for communication including a communication port with a first lane and a second lane, a first power controller and a second power controller coupled to the communication port. The first power controller is to control, at a first time instance, the first lane to operate in a first power state selected from a first set of power states for the first lane. The second power controller is to control, at a second time instance, the second lane to operate in a second power state selected from a second set of power states for the second lane, wherein the first power state is different from the second power state. Other embodiments may be described and/or claimed.

公开(公告)号：US20190042281A1

公开(公告)日：2019-02-07

申请号：US15987863

申请日：2018-05-23

申请人： Vinay Raghav ,  Reuven Rozic ,  David J. Harriman

发明人： Vinay Raghav ,  Reuven Rozic ,  David J. Harriman

IPC分类号： G06F9/445 ,  G06F13/10 ,  G06F13/42

摘要： Aspects of the embodiments include systems, methods, devices, and computer program products to receive, from the downstream component, an indication of an extended capability; determining, from the indication, one or more configuration parameters for the downstream component; applying the one or more configuration parameters; and performing data signal or control signal transmissions across the PCIe-compliant link with the downstream component based, at least in part, on the applied one or more configuration parameters. The extended capabilities can be indicated by a DVSEC extended capability definition received from a downstream device. The extended capabilities of the downstream component can indicate the number of buses, the port type, the expandability capability, the D3Cold support status, the host router indicator, and/or the safe eject requirements of the downstream component.