公开(公告)号：US11775359B2

公开(公告)日：2023-10-03

申请号：US17469610

申请日：2021-09-08

Applicant: Apple Inc.

Inventor： Cahya Adiansyah Masputra ,  Eric Tsz Leung Cheng ,  Wei Shen ,  Francesco Dimambro ,  Sandeep Nair

IPC: G06F9/44 ,  G06F9/54 ,  G06F9/46 ,  G06F9/455 ,  G06F21/53

CPC classification number: G06F9/545 ,  G06F9/45558 ,  G06F9/468 ,  G06F21/53 ,  G06F2009/45587

Abstract: Methods and apparatuses for cross-layer processing. In some embodiments, kernel processes are executed at a higher privilege and priority than user space processes, thus cross-layer communication that spans both kernel and user space may introduce system vulnerabilities and/or consume limited resources in an undesirable manner. Unlike kernel space networking architectures that have to accommodate generic use cases, user space networking architectures are application specific, run in their own memory allocations, and can be terminated without affecting other user space applications 602 and/or kernel space operation. Various aspects described herein provide application specific, non-generic functionality without kernel assistance. Exemplary embodiments for buffer cloning, packet aggregation and “just in time” transformations, are illustrative of the broader concepts enabled by the present disclosure.

公开(公告)号：US11212373B2

公开(公告)日：2021-12-28

申请号：US16236032

申请日：2018-12-28

Applicant: Apple Inc.

Inventor： Cahya Adiansyah Masputra ,  Wei Shen ,  Sandeep Nair ,  Olivier Mardinian ,  Darrin Jewell

IPC: G06F21/00 ,  H04L29/06 ,  H04L12/46 ,  G06F9/54 ,  G06F9/48 ,  G06F9/50 ,  G06F12/10 ,  G06F13/16 ,  G06F3/06 ,  G06F9/46 ,  G06F12/02 ,  H04L12/859 ,  H04L12/851 ,  H04L12/863 ,  H04L12/935 ,  H04L12/861 ,  G06F9/455 ,  H04L12/801 ,  H04L12/841 ,  G06F9/52 ,  H04L12/26 ,  G06F16/23 ,  G06F21/52 ,  H04L12/833 ,  H04L12/835 ,  H04L12/823 ,  H04L12/865 ,  G06F21/56 ,  G06F16/22 ,  H04L29/12 ,  H04L29/08 ,  H04L1/00

Abstract: Methods and apparatus for efficient data transfer within a user space network stack. Unlike prior art monolithic networking stacks, the exemplary networking stack architecture described hereinafter includes various components that span multiple domains (both in-kernel, and non-kernel). For example, unlike traditional “socket” based communication, disclosed embodiments can transfer data directly between the kernel and user space domains. Direct transfer reduces the per-byte and per-packet costs relative to socket based communication. A user space networking stack is disclosed that enables extensible, cross-platform-capable, user space control of the networking protocol stack functionality. The user space networking stack facilitates tighter integration between the protocol layers (including TLS) and the application or daemon. Exemplary systems can support multiple networking protocol stack instances (including an in-kernel traditional network stack).

公开(公告)号：US11178259B2

公开(公告)日：2021-11-16

申请号：US16146533

申请日：2018-09-28

Applicant: Apple Inc.

Inventor： Cahya Adiansyah Masputra ,  Sandeep Nair ,  Karan Sanghi ,  Mingzhe Zhang ,  Jason McElrath

IPC: H04L29/06 ,  H04L12/46 ,  G06F9/54 ,  G06F9/48 ,  G06F9/50 ,  G06F12/10 ,  G06F13/16 ,  G06F3/06 ,  G06F9/46 ,  G06F12/02 ,  H04L12/859 ,  H04L12/851 ,  H04L12/863 ,  H04L12/935 ,  H04L12/861 ,  G06F9/455 ,  H04L12/801 ,  H04L12/841 ,  G06F9/52 ,  H04L12/26 ,  G06F16/23 ,  G06F21/52 ,  H04L12/833 ,  H04L12/835 ,  H04L12/823 ,  H04L12/865 ,  G06F21/56 ,  G06F16/22 ,  H04L29/12 ,  H04L29/08 ,  H04L1/00

Abstract: Methods and apparatus for efficient data transfer within a user space network stack. Unlike prior art monolithic networking stacks, the exemplary networking stack architecture described hereinafter includes various components that span multiple domains (both in-kernel, and non-kernel). For example, unlike traditional “socket” based communication, disclosed embodiments can transfer data directly between the kernel and user space domains. Direct transfer reduces the per-byte and per-packet costs relative to socket based communication. A user space networking stack is disclosed that enables extensible, cross-platform-capable, user space control of the networking protocol stack functionality. The user space networking stack facilitates tighter integration between the protocol layers (including TLS) and the application or daemon. Exemplary systems can support multiple networking protocol stack instances (including an in-kernel traditional network stack).

公开(公告)号：US11843683B2

公开(公告)日：2023-12-12

申请号：US16368368

申请日：2019-03-28

Applicant: Apple Inc.

Inventor： Cahya Adiansyah Masputra ,  Sandeep Nair ,  Darrin Jewell

IPC: H04L69/16 ,  H04L69/163 ,  H04L69/164 ,  H04L12/46 ,  G06F9/54 ,  H04L9/40 ,  G06F9/48 ,  G06F9/50 ,  G06F12/10 ,  G06F13/16 ,  G06F3/06 ,  G06F9/46 ,  G06F12/02 ,  H04L47/2475 ,  H04L47/2483 ,  H04L47/6295 ,  H04L49/00 ,  H04L49/9047 ,  H04L69/00 ,  G06F9/455 ,  H04L47/193 ,  H04L47/283 ,  G06F9/52 ,  H04L43/0864 ,  G06F16/23 ,  G06F21/52 ,  H04L47/24 ,  H04L47/30 ,  H04L47/32 ,  H04L47/6275 ,  G06F21/56 ,  H04L69/22 ,  G06F16/22 ,  H04L61/103 ,  H04L61/2503 ,  H04L67/146 ,  H04L69/18 ,  H04L1/00

CPC classification number: H04L69/162 ,  G06F3/0604 ,  G06F3/0631 ,  G06F3/0644 ,  G06F3/0673 ,  G06F9/45558 ,  G06F9/461 ,  G06F9/4881 ,  G06F9/5005 ,  G06F9/5016 ,  G06F9/5022 ,  G06F9/52 ,  G06F9/542 ,  G06F9/545 ,  G06F12/023 ,  G06F12/10 ,  G06F13/1668 ,  G06F16/2228 ,  G06F16/2365 ,  G06F21/52 ,  G06F21/568 ,  H04L12/4641 ,  H04L43/0864 ,  H04L47/193 ,  H04L47/2458 ,  H04L47/2475 ,  H04L47/2483 ,  H04L47/283 ,  H04L47/30 ,  H04L47/32 ,  H04L47/6275 ,  H04L47/6295 ,  H04L49/30 ,  H04L49/9052 ,  H04L61/103 ,  H04L61/2542 ,  H04L63/166 ,  H04L67/146 ,  H04L69/02 ,  H04L69/161 ,  H04L69/163 ,  H04L69/164 ,  H04L69/18 ,  H04L69/22 ,  G06F9/50 ,  G06F2009/45595 ,  G06F2209/5011 ,  G06F2212/657 ,  G06F2221/032 ,  G06F2221/034 ,  H04L1/0061

Abstract: Methods and apparatus for active queue management in user space networking stacks. Unlike prior art monolithic networking stacks, the exemplary networking stack architecture described hereinafter includes various components that span multiple domains (both in-kernel, and non-kernel). For example, unlike traditional “socket” based communication, disclosed embodiments can transfer data directly between the kernel and user space domains. Additionally, user space networking stacks require a new flow control methodology that is responsive to networking congestion and/or packet loss. For example, embodiments of the present disclosure introduce a flow advisory table that may, for example, utilize an eventing methodology for active queue management in addition to, or alternatively then, legacy active queue management. Exemplary systems can support multiple networking protocol stack instances (including an in-kernel traditional network stack) as well as flow advisory tables (and legacy active queue management).

公开(公告)号：US11558348B2

公开(公告)日：2023-01-17

申请号：US16935982

申请日：2020-07-22

Applicant: Apple Inc.

Inventor： Cahya Adiansyah Masputra ,  Eric Tsz Leung Cheng ,  Sandeep Nair ,  Wei Shen

IPC: H04L29/06 ,  H04L9/40 ,  H04L69/16

Abstract: Methods and apparatus for emerging use case support in user space networking architectures. In one embodiment, an apparatus configured to segregate packet data based on a packet type is disclosed. The exemplary embodiment provides a custom data type registry that enables the definition, addition, removal, modification, and/or prioritization of custom packet processing rules. Variants of the registry may support custom ethertype packets, network packets, and/or transport packets. In another embodiment, mechanisms for enabling an intermediary packet processing stage are described. Intermediary packet processing may enable user space system extensions that support e.g., packet filtering, packet modification, and/or other forms of packet processing.

公开(公告)号：US20210099427A1

公开(公告)日：2021-04-01

申请号：US16935982

申请日：2020-07-22

Applicant: Apple Inc.

Inventor： Cahya Adiansyah Masputra ,  Eric Tsz Leung Cheng ,  Sandeep Nair ,  Wei Shen

IPC: H04L29/06

Abstract: Methods and apparatus for emerging use case support in user space networking architectures. In one embodiment, an apparatus configured to segregate packet data based on a packet type is disclosed. The exemplary embodiment provides a custom data type registry that enables the definition, addition, removal, modification, and/or prioritization of custom packet processing rules. Variants of the registry may support custom ethertype packets, network packets, and/or transport packets. In another embodiment, mechanisms for enabling an intermediary packet processing stage are described. Intermediary packet processing may enable user space system extensions that support e.g., packet filtering, packet modification, and/or other forms of packet processing.

公开(公告)号：US11824962B2

公开(公告)日：2023-11-21

申请号：US17498574

申请日：2021-10-11

Applicant: Apple Inc.

Inventor： Cahya Adiansyah Masputra ,  Sandeep Nair ,  Darrin Jewell ,  Prabhakar Lakhera ,  Thomas Francis Pauly ,  Joshua Verweyst Graessley ,  Wei Shen ,  Olivier Mardinian

IPC: H04L29/06 ,  H04L69/16 ,  H04L69/163 ,  H04L69/164 ,  H04L12/46 ,  G06F9/54 ,  H04L9/40 ,  G06F9/48 ,  G06F9/50 ,  G06F12/10 ,  G06F13/16 ,  G06F3/06 ,  G06F9/46 ,  G06F12/02 ,  H04L47/2475 ,  H04L47/2483 ,  H04L47/6295 ,  H04L49/00 ,  H04L49/9047 ,  H04L69/00 ,  G06F9/455 ,  H04L47/193 ,  H04L47/283 ,  G06F9/52 ,  H04L43/0864 ,  G06F16/23 ,  G06F21/52 ,  H04L47/24 ,  H04L47/30 ,  H04L47/32 ,  H04L47/6275 ,  G06F21/56 ,  H04L69/22 ,  G06F16/22 ,  H04L61/103 ,  H04L61/2503 ,  H04L67/146 ,  H04L69/18 ,  H04L1/00

CPC classification number: H04L69/162 ,  G06F3/0604 ,  G06F3/0631 ,  G06F3/0644 ,  G06F3/0673 ,  G06F9/45558 ,  G06F9/461 ,  G06F9/4881 ,  G06F9/5005 ,  G06F9/5016 ,  G06F9/5022 ,  G06F9/52 ,  G06F9/542 ,  G06F9/545 ,  G06F12/023 ,  G06F12/10 ,  G06F13/1668 ,  G06F16/2228 ,  G06F16/2365 ,  G06F21/52 ,  G06F21/568 ,  H04L12/4641 ,  H04L43/0864 ,  H04L47/193 ,  H04L47/2458 ,  H04L47/2475 ,  H04L47/2483 ,  H04L47/283 ,  H04L47/30 ,  H04L47/32 ,  H04L47/6275 ,  H04L47/6295 ,  H04L49/30 ,  H04L49/9052 ,  H04L61/103 ,  H04L61/2542 ,  H04L63/166 ,  H04L67/146 ,  H04L69/02 ,  H04L69/161 ,  H04L69/163 ,  H04L69/164 ,  H04L69/18 ,  H04L69/22 ,  G06F9/50 ,  G06F2009/45595 ,  G06F2209/5011 ,  G06F2212/657 ,  G06F2221/032 ,  G06F2221/034 ,  H04L1/0061

Abstract: Methods and apparatus for efficient data transfer within a user space network stack. Unlike prior art monolithic networking stacks, the exemplary networking stack architecture described hereinafter includes various components that span multiple domains (both in-kernel, and non-kernel). For example, unlike traditional “socket” based communication, disclosed embodiments can transfer data directly between the kernel and user space domains. Direct transfer reduces the per-byte and per-packet costs relative to socket based communication. A user space networking stack is disclosed that enables extensible, cross-platform-capable, user space control of the networking protocol stack functionality. The user space networking stack facilitates tighter integration between the protocol layers (including TLS) and the application or daemon. Exemplary systems can support multiple networking protocol stack instances (including an in-kernel traditional network stack).

公开(公告)号：US11799986B2

公开(公告)日：2023-10-24

申请号：US17480964

申请日：2021-09-21

Applicant: Apple Inc.

Inventor： Cahya Adiansyah Masputra ,  Eric Tze Leung Cheng ,  Sandeep Nair ,  Wei Shen

IPC: H04L67/63 ,  H04L41/0896 ,  H04L47/2475 ,  G06F9/54

CPC classification number: H04L67/63 ,  G06F9/545 ,  H04L41/0896 ,  H04L47/2475

Abstract: Methods and apparatus for thread-level execution in non-kernel space. Most modern consumer usage scenarios are focused on user experience for only a few network connections; in many such cases, background network applications and/or stale network connections could be de-prioritized and/or even terminated without adverse effect. The exemplary “polylithic” non-kernel space networking architecture concurrently runs multiple instances of a network stack in non-kernel space. Thread execution for each instance can be individually managed by the operating system (OS). Disclosed embodiments dynamically determine receive (RX) mitigation and/or receive side scaling with consistent hashing.

公开(公告)号：US11477123B2

公开(公告)日：2022-10-18

申请号：US16936228

申请日：2020-07-22

Applicant: Apple Inc.

Inventor： Cahya Adiansyah Masputra ,  Eric Tsz Leung Cheng ,  Sandeep Nair ,  Wei Shen

IPC: H04L47/2425 ,  H04L67/141 ,  H04L47/2441 ,  H04L47/2491 ,  H04L12/28 ,  H04L47/24 ,  H04L47/80 ,  H04L67/61 ,  H04L12/64

Abstract: Methods and apparatus for low latency operation in user space networking architectures. In one embodiment, an apparatus configured to enable low latency data transfer is disclosed. The exemplary embodiment provides a multiplexer that allocates a fixed portion of network bandwidth for low latency traffic. Low latency traffic is routed without the benefit of general-purpose packet processing. In one embodiment, network extensions for low latency operations are described. Specifically, an agent is described that enables low latency applications to negotiate for low latency access. In one embodiment, mechanisms for providing channel event notifications are described. Channel event notifications enable corrective action/packet processing by the low latency application. In one embodiment, mechanisms for providing interface advisory information are described. Interface advisory information may be provided asynchronously to assist in low latency operation.

公开(公告)号：US11368560B2

公开(公告)日：2022-06-21

申请号：US16368214

申请日：2019-03-28

Applicant: Apple Inc.

Inventor： Cahya Adiansyah Masputra ,  Karan Sanghi ,  Mingzhe Zhang ,  Jason McElrath ,  Sandeep Nair

IPC: G06F7/02 ,  H04L69/16 ,  H04L69/163 ,  H04L69/164 ,  H04L12/46 ,  G06F9/54 ,  H04L9/40 ,  G06F9/48 ,  G06F9/50 ,  G06F12/10 ,  G06F13/16 ,  G06F3/06 ,  G06F9/46 ,  G06F12/02 ,  H04L47/2475 ,  H04L47/2483 ,  H04L47/6295 ,  H04L49/00 ,  H04L49/9047 ,  H04L69/00 ,  G06F9/455 ,  H04L47/193 ,  H04L47/283 ,  G06F9/52 ,  H04L43/0864 ,  G06F16/23 ,  G06F21/52 ,  H04L47/24 ,  H04L47/30 ,  H04L47/32 ,  H04L47/6275 ,  G06F21/56 ,  H04L69/22 ,  G06F16/22 ,  H04L61/103 ,  H04L61/2503 ,  H04L67/146 ,  H04L69/18 ,  H04L1/00

Abstract: Methods and apparatus for efficient data transfer within a user space network stack. Unlike prior art monolithic networking stacks, the exemplary networking stack architecture described hereinafter includes various components that span multiple domains (both in-kernel, and non-kernel). For example, unlike traditional “socket” based communication, disclosed embodiments can transfer data directly between the kernel and user space domains. Direct transfer reduces the per-byte and per-packet costs relative to socket based communication. A user space networking stack is disclosed that enables extensible, cross-platform-capable, user space control of the networking protocol stack functionality. The user space networking stack facilitates tighter integration between the protocol layers (including TLS) and the application or daemon. Exemplary systems can support multiple networking protocol stack instances (including an in-kernel traditional network stack).