公开(公告)号：US20130132683A1

公开(公告)日：2013-05-23

申请号：US13713614

申请日：2012-12-13

Applicant: Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David J. Harriman ,  Mark B. Rosenbluth ,  Ajay V. Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert G. Blankenship ,  Ohad Falik ,  Avi Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

Inventor： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David J. Harriman ,  Mark B. Rosenbluth ,  Ajay V. Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert G. Blankenship ,  Ohad Falik ,  Avi Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC: G06F12/08

CPC classification number: G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

Abstract: A method and apparatus forenhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

公开(公告)号：US08437343B1

公开(公告)日：2013-05-07

申请号：US13477310

申请日：2012-05-22

Applicant: Mahesh Wagh ,  David J. Harriman

Inventor： Mahesh Wagh ,  David J. Harriman

IPC: H04L12/50 ,  H04Q11/00 ,  G06F13/00

CPC classification number: G06F13/4282 ,  G06F1/3253 ,  G06F13/385 ,  H04Q2213/13003 ,  Y02D10/151 ,  Y02D50/20

Abstract: In one embodiment, a converged protocol stack can be used to unify communications from a first communication protocol to a second communication protocol to provide for data transfer across a physical interconnect. This stack can be incorporated in an apparatus that includes a protocol stack for a first communication protocol including transaction and link layers, and a physical (PHY) unit coupled to the protocol stack to provide communication between the apparatus and a device coupled to the apparatus via a physical link. This PHY unit may include a physical unit circuit according to the second communication protocol. Other embodiments are described and claimed.

公开(公告)号：US20130061077A1

公开(公告)日：2013-03-07

申请号：US13611930

申请日：2012-09-12

Applicant: Woojong Han ,  Madhu Athreya ,  Ken Shoemaker ,  Arvind Mandhani ,  Mahesh Wagh ,  Ticky Thakkar

Inventor： Woojong Han ,  Madhu Athreya ,  Ken Shoemaker ,  Arvind Mandhani ,  Mahesh Wagh ,  Ticky Thakkar

IPC: G06F1/32

CPC classification number: G06F1/3234 ,  G06F1/3203 ,  G06F1/3243 ,  Y02D10/152

Abstract: In one embodiment, the present invention includes a method for sending a first link handshake signal between a first subsystem and a power management unit (PMU) of a system on a chip (SoC) to request entry into a power saving state for the first subsystem, sending a second link handshake signal between the first subsystem and the PMU to acknowledge the request, and placing the first subsystem into the power saving state without further signaling between the PMU and the first subsystem. Other embodiments are described and claimed.

公开(公告)号：US20120203950A1

公开(公告)日：2012-08-09

申请号：US13449302

申请日：2012-04-17

Applicant: Mahesh Wagh ,  Jasmin Ajanovic

Inventor： Mahesh Wagh ,  Jasmin Ajanovic

IPC: G06F12/10 ,  G06F12/08

CPC classification number: G06F12/08 ,  G06F12/023 ,  G06F12/10 ,  G06F12/1009 ,  G06F12/1027 ,  G06F12/121 ,  G06F2212/152

Abstract: Methods and apparatus relating to improving address translation caching and/or input/output (I/O) cache performance in virtualized environments are described. In one embodiment, a hint provided by an endpoint device may be utilized to update information stored in an I/O cache. Such information may be utilized for implementation of a more efficient replacement policy in an embodiment. Other embodiments are also disclosed.

Abstract translation: 描述了在虚拟化环境中改进地址转换缓存和/或输入/输出（I / O）缓存性能的方法和装置。 在一个实施例中，由端点设备提供的提示可用于更新存储在I / O高速缓存中的信息。 这样的信息可以用于在实施例中实现更有效的替换策略。 还公开了其他实施例。

公开(公告)号：US08099523B2

公开(公告)日：2012-01-17

申请号：US13073219

申请日：2011-03-28

Applicant: Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

Inventor： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Abraham Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC: G06F3/00

CPC classification number: G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

Abstract: A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

Abstract translation: 这里描述了用于增强/扩展串行点对点互连架构的方法和装置，例如外围组件互连Express（PCIe）。 提供了时间和地点缓存提示和预取提示，以改进系统范围的缓存和预取。 包括用于仲裁系统设备/资源之间的所有权的原子操作的消息代码，以便有效地访问/拥有共享数据。 提供的松散的事务排序，同时将对应的事务优先级保持到内存位置，以确保数据完整性和高效的内存访问。 包括有功功率子状态及其设置以允许更有效的电源管理。 并且，提供设备本地存储器在主机地址空间中的缓存以及设备本地存储器地址空间中的系统存储器的缓存，以提高存储器访问的带宽和延迟。

公开(公告)号：US20110238882A1

公开(公告)日：2011-09-29

申请号：US13073149

申请日：2011-03-28

Applicant: Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Avi (Abraham) Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

Inventor： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Avi (Abraham) Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC: G06F13/14

CPC classification number: G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

Abstract: A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

公开(公告)号：US20110072164A1

公开(公告)日：2011-03-24

申请号：US12883781

申请日：2010-09-16

Applicant: Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Avi (Abraham) Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

Inventor： Jasmin Ajanovic ,  Mahesh Wagh ,  Prashant Sethi ,  Debendra Das Sharma ,  David Harriman ,  Mark Rosenbluth ,  Ajay Bhatt ,  Peter Barry ,  Scott Dion Rodgers ,  Anil Vasudevan ,  Sridhar Muthrasanallur ,  James Akiyama ,  Robert Blankenship ,  Ohad Falik ,  Avi (Abraham) Mendelson ,  Ilan Pardo ,  Eran Tamari ,  Eliezer Weissmann ,  Doron Shamia

IPC: G06F3/00 ,  G06F13/42

CPC classification number: G06F12/0831 ,  G06F1/3203 ,  G06F1/324 ,  G06F1/3253 ,  G06F12/0815 ,  G06F13/385 ,  G06F13/4045 ,  G06F13/4068 ,  G06F13/4265 ,  G06F2212/621 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/151

Abstract: A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.

公开(公告)号：US07861027B2

公开(公告)日：2010-12-28

申请号：US12156320

申请日：2008-05-30

Applicant: Ken Shoemaker ,  Mahesh Wagh ,  Woojong Han ,  Madhu Athreya ,  Arvind Mandhani ,  Shreekant S. Thakkar

Inventor： Ken Shoemaker ,  Mahesh Wagh ,  Woojong Han ,  Madhu Athreya ,  Arvind Mandhani ,  Shreekant S. Thakkar

IPC: G06F13/42 ,  G06F13/20 ,  G06F13/36

CPC classification number: G06F13/404 ,  G06F13/385 ,  G06F13/4022 ,  G06F13/4027 ,  G06F13/4045

Abstract: In one embodiment, the present invention includes an apparatus having an adapter to communicate according to a personal computer (PC) protocol and a second protocol. A first interface coupled to the adapter is to perform address translation and ordering of transactions received from upstream of the adapter. The first interface is coupled in turn via one or more physical units to heterogeneous resources, each of which includes an intellectual property (IP) core and a shim, where the shim is to implement a header of the PC protocol for the IP core to enable its incorporation into the apparatus without modification. Other embodiments are described and claimed.

Abstract translation: 在一个实施例中，本发明包括具有根据个人计算机（PC）协议和第二协议进行通信的适配器的装置。 耦合到适配器的第一接口是对从适配器的上游接收的事务执行地址转换和排序。 第一接口依次通过一个或多个物理单元耦合到异构资源，每个资源包括知识产权（IP）核心和垫片，其中垫片将实现用于IP核的PC协议的报头以使能 无需修改即可并入设备。 描述和要求保护其他实施例。

公开(公告)号：US07849243B2

公开(公告)日：2010-12-07

申请号：US12009970

申请日：2008-01-23

Applicant: Mahesh Wagh

Inventor： Mahesh Wagh

IPC: G06F3/00

CPC classification number: G06F13/385 ,  G06F13/4269 ,  H04L12/12 ,  Y02D50/30 ,  Y02D50/40

Abstract: In one embodiment, the present invention includes a method for transmitting a packet from a transmitter to a receiver along an interconnect and terminating transmission of the packet at a packet disconnect boundary, which has a length less than a payload length of the packet. After such termination, another packet such as a higher priority packet can be transmitted, or a remainder of the original packet may be transmitted as a separate packet. Other embodiments are described and claimed.

Abstract translation: 在一个实施例中，本发明包括一种用于沿着互连从发射机向接收机发送分组的方法，并且在分组断开边界处终止分组的传输，分组断开边界的长度小于分组的有效载荷长度。 在这种终止之后，可以发送诸如较高优先级分组的另一分组，或者原始分组的剩余部分可以作为单独分组发送。 描述和要求保护其他实施例。

公开(公告)号：US20090296740A1

公开(公告)日：2009-12-03

申请号：US12156409

申请日：2008-05-30

Applicant: Mahesh Wagh ,  Jasmin Ajanovic

Inventor： Mahesh Wagh ,  Jasmin Ajanovic

IPC: H04J3/24

CPC classification number: H04L69/22

Abstract: In one embodiment, the present invention includes a method for generating a prefix header with an opcode field and a prefix specific field for a first packet to be transmitted from a transmitter, and transmitting the packet from the transmitter with the prefix header, which is followed by a header. Other embodiments are described and claimed.

Abstract translation: 在一个实施例中，本发明包括一种用于产生具有操作码字段的前缀报头和用于要从发送器发送的第一分组的前缀特定字段的方法，并且从发送器发送具有跟随的前缀报头的分组 通过标题 描述和要求保护其他实施例。