公开(公告)号：US10228869B1

公开(公告)日：2019-03-12

申请号：US15716010

申请日：2017-09-26

Applicant: Amazon Technologies, Inc.

Inventor： Guy Nakibly ,  Benzi Denkberg ,  Ofer Frishman ,  Erez Izenberg ,  Uri Leder ,  Nafea Bshara

IPC: G06F9/48 ,  G06F3/06 ,  H04L12/911 ,  G06F9/50 ,  H04L29/08

Abstract: Techniques for controlling access to shared resources may include receiving multiple requests to access shared information associated with an identifier. For each of the requests, an entry in a linked list can be allocated to the request, and each entry can be associated with the identifier. The shared information associated with the identifier can be retrieved, and stored in each entry associated with the identifier. A conflict indicator is set in each entry to indicate whether the shared information is available for the request corresponding to the entry. The shared information stored in each entry is provided for each request after the conflict indicator in the corresponding entry indicates the shared information is available for the request.

公开(公告)号：US10177795B1

公开(公告)日：2019-01-08

申请号：US15394635

申请日：2016-12-29

Applicant: Amazon Technologies, Inc.

Inventor： Ofer Frishman ,  Erez Izenberg ,  Guy Nakibly

IPC: H03M13/00 ,  H04L29/06 ,  G06F12/12 ,  G06F12/0813 ,  G06F11/10 ,  H03M13/09

Abstract: Systems and methods in accordance with various embodiments of the present disclosure provide approaches for mapping entries to a cache using a function, such as cyclic redundancy check (CRC). The function can calculate a colored cache index based on a main memory address. The function may cause consecutive address cache indexes to be spread throughout the cache according to the indexes calculated by the function. In some embodiments, each data context may be associated with a different function, enabling different types of packets to be processed while sharing the same cache, reducing evictions of other data contexts and improving performance. Various embodiments can identify a type of packet as the packet is received, and lookup a mapping function based on the type of packet. The function can then be used to lookup the corresponding data context for the packet from the cache, for processing the packet.

公开(公告)号：US09928207B1

公开(公告)日：2018-03-27

申请号：US14869107

申请日：2015-09-29

Applicant: Amazon Technologies, Inc.

Inventor： Adi Habusha ,  Nafea Bshara ,  Itay Poleg ,  Erez Izenberg ,  Guy Nakibly ,  Matthew Shawn Wilson

IPC: G06F13/00 ,  G06F13/42 ,  G06F13/40 ,  G06F13/38

CPC classification number: G06F13/4282 ,  G06F13/385 ,  G06F13/4022 ,  G06F13/404 ,  G06F13/4221

Abstract: Provided are systems and methods for generating transactions with a configurable port. In some implementations, a peripheral device is provided. The peripheral device comprises a configurable port. In some implementations, the configurable port may be configured to receive a first transaction. In these implementations, the first transactions may include an address. The address may include a transaction attribute. In some implementations, the configurable port may extract the transaction attribute and a transaction address from the address. The configurable port may further generate a second transaction that includes the transaction attribute and the transaction address. The configurable port may also transmit the second transaction.

公开(公告)号：US11892967B2

公开(公告)日：2024-02-06

申请号：US17901720

申请日：2022-09-01

Applicant: Amazon Technologies, Inc.

Inventor： Erez Izenberg ,  Leah Shalev ,  Nafea Bshara ,  Guy Nakibly ,  Georgy Machulsky

IPC: G06F15/167 ,  H04L69/22 ,  G06F16/22

CPC classification number: G06F15/167 ,  G06F16/22 ,  H04L69/22

Abstract: Apparatus and methods are disclosed herein for remote, direct memory access (RDMA) technology that enables direct memory access from one host computer memory to another host computer memory over a physical or virtual computer network according to a number of different RDMA protocols. In one example, a method includes receiving remote direct memory access (RDMA) packets via a network adapter, deriving a protocol index identifying an RDMA protocol used to encode data for an RDMA transaction associated with the RDMA packets, applying the protocol index to a generate RDMA commands from header information in at least one of the received RDMA packets, and performing an RDMA operation using the RDMA commands.

公开(公告)号：US11836103B1

公开(公告)日：2023-12-05

申请号：US17455138

申请日：2021-11-16

Applicant: Amazon Technologies, Inc.

Inventor： Guy Nakibly ,  Roi Ben Haim ,  Erez Izenberg ,  Adi Habusha ,  Yaniv Shapira

IPC: G06F13/40 ,  G06F13/42

CPC classification number: G06F13/4027 ,  G06F13/4221 ,  G06F2213/0026

Abstract: Systems and methods are provided to differentiate different types of traffic going through the same physical channel such that the traffic flow for different traffic types does not impact each other. The physical channel can be configured to support a plurality of virtual channels. Each transaction that needs to be communicated through the physical channel can be classified into a certain traffic type, and each traffic type can be assigned to a virtual channel. Each transaction can be communicated on a respective virtual channel based on the corresponding traffic type. If the traffic flow through a first virtual channel for a transaction slows down, the traffic flow through a second virtual channel for another transaction can continue without getting impacted by the slow down on the first virtual channel.

公开(公告)号：US11436183B2

公开(公告)日：2022-09-06

申请号：US17139621

申请日：2020-12-31

Applicant: Amazon Technologies, Inc.

Inventor： Erez Izenberg ,  Leah Shalev ,  Nafea Bshara ,  Guy Nakibly ,  Georgy Machulsky

IPC: G06F15/167 ,  H04L69/22 ,  G06F16/22

Abstract: Apparatus and methods are disclosed herein for remote, direct memory access (RDMA) technology that enables direct memory access from one host computer memory to another host computer memory over a physical or virtual computer network according to a number of different RDMA protocols. In one example, a method includes receiving remote direct memory access (RDMA) packets via a network adapter, deriving a protocol index identifying an RDMA protocol used to encode data for an RDMA transaction associated with the RDMA packets, applying the protocol index to a generate RDMA commands from header information in at least one of the received RDMA packets, and performing an RDMA operation using the RDMA commands.

公开(公告)号：US10790862B2

公开(公告)日：2020-09-29

申请号：US16241275

申请日：2019-01-07

Applicant: Amazon Technologies, Inc.

Inventor： Ofer Frishman ,  Erez Izenberg ,  Guy Nakibly

IPC: H03M13/00 ,  H04L29/06 ,  G06F12/12 ,  G06F12/0813 ,  G06F11/10 ,  H03M13/09 ,  G06F12/0864 ,  G06F12/084 ,  G06F12/0842

Abstract: Systems and methods in accordance with various embodiments of the present disclosure provide approaches for mapping entries to a cache using a function, such as cyclic redundancy check (CRC). The function can calculate a colored cache index based on a main memory address. The function may cause consecutive address cache indexes to be spread throughout the cache according to the indexes calculated by the function. In some embodiments, each data context may be associated with a different function, enabling different types of packets to be processed while sharing the same cache, reducing evictions of other data contexts and improving performance. Various embodiments can identify a type of packet as the packet is received, and lookup a mapping function based on the type of packet. The function can then be used to lookup the corresponding data context for the packet from the cache, for processing the packet.

公开(公告)号：US20200151137A1

公开(公告)日：2020-05-14

申请号：US16702187

申请日：2019-12-03

Applicant: Amazon Technologies, Inc.

Inventor： Erez Izenberg ,  Leah Shalev ,  Nafea Bshara ,  Guy Nakibly ,  Georgy Machulsky

IPC: G06F15/167 ,  G06F16/22 ,  H04L29/06

Abstract: Apparatus and methods are disclosed herein for remote, direct memory access (RDMA) technology that enables direct memory access from one host computer memory to another host computer memory over a physical or virtual computer network according to a number of different RDMA protocols. In one example, a method includes receiving remote direct memory access (RDMA) packets via a network adapter, deriving a protocol index identifying an RDMA protocol used to encode data for an RDMA transaction associated with the RDMA packets, applying the protocol index to a generate RDMA commands from header information in at least one of the received RDMA packets, and performing an RDMA operation using the RDMA commands.

公开(公告)号：US10298496B1

公开(公告)日：2019-05-21

申请号：US15716036

申请日：2017-09-26

Applicant: Amazon Technologies, Inc.

Inventor： Guy Nakibly ,  Benzi Denkberg ,  Erez Izenberg ,  Nafea Bshara ,  Uri Leder ,  Ofer Frishman

IPC: H04L12/747 ,  H04L12/861 ,  G06F12/0802 ,  H04L29/06 ,  H04L12/931

Abstract: A data or packet processing device such as a network interface controller may include cache control logic that is configured to receive a first request for processing a first data packet associated with the queue identifier, and obtain a set of memory descriptors associated with the queue identifier from the memory. The set of descriptors can be stored in the cache. When a second request for processing a second data packet associated with the queue identifier is received, the cache control logic can determine that the cache is storing memory descriptors for processing the second data packet, and provide the memory descriptors used for processing the second packet.

公开(公告)号：US20190129796A1

公开(公告)日：2019-05-02

申请号：US16160782

申请日：2018-10-15

Applicant: Amazon Technologies, Inc.

Inventor： Ron Diamant ,  Nafea Bshara ,  Yaniv Shapira ,  Guy Nakibly

IPC: G06F11/10 ,  G06F11/20

Abstract: A method for calculating a plurality (M) of redundancy blocks for multiple (N) data blocks of a plurality (D) of words each, the method comprises: receiving the number (M) of redundancy blocks by a calculator that comprises multiple (R) calculation units; configuring the calculator according to M and R; concurrently calculating, if M equals R, by the multiple (R) calculation units of the calculator, R sets of parity vectors, each set includes a plurality (D) of parity vectors; and calculating the plurality (M) of the redundancy blocks based on the R sets of parity vectors.