公开(公告)号：US20240411680A1

公开(公告)日：2024-12-12

申请号：US18330007

申请日：2023-06-06

Applicant: Mellanox Technologies, Ltd.

Inventor： Gil Kremer ,  Roee Moyal ,  Igor Voks ,  Liel Peled ,  Eliel Peretz ,  Ariel Shahar

IPC: G06F12/02

Abstract: Apparatuses, systems, and techniques for dynamic memory allocation using a shared free list. A user tag is received, and a hashed user tag is generated. A first reference to an entry in a second data structure is identified in a first data structure using the hashed user tag. The entry includes multiple user tags. Responsive to determining that the multiple user tags do not include the user tag, a memory address is identified in a third data structure. The memory address is removed from the third data structure. Memory is allocated for a user context associated with the user tag at the memory address. The user tag is added to the second data structure.

公开(公告)号：US20240311183A1

公开(公告)日：2024-09-19

申请号：US18479784

申请日：2023-10-02

Applicant: Mellanox Technologies, Ltd.

Inventor： Natan Manevich ,  Ariel Shahar ,  Wojciech Wasko ,  Dotan David Levi ,  Roee Moyal ,  Eliel Peretz

IPC: G06F9/48 ,  G06F9/54

CPC classification number: G06F9/4881 ,  G06F9/542

Abstract: A work descriptor identifying a plurality of workflow tasks to be performed by a hardware device is generated by a host system. A plurality of timestamp logging tasks are added to the work descriptor. Each of the plurality of timestamp logging tasks corresponds to one of the plurality of workflow tasks and instructs the hardware device to log a timestamp in response to an event associated with a respective workflow task. The work descriptor with the plurality of timestamp logging tasks is stored in a work queue of the host system. The work queue is accessible by the hardware device.

公开(公告)号：US20240211426A1

公开(公告)日：2024-06-27

申请号：US18598382

申请日：2024-03-07

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Daniel Marcovitch ,  Dotan David Levi ,  Eyal Srebro ,  Eliel Peretz ,  Roee Moyal ,  Richard Graham ,  Gil Bloch ,  Sean Pieper

IPC: G06F13/42 ,  G06F7/76

CPC classification number: G06F13/42 ,  G06F7/76

Abstract: Devices, methods, and systems are provided. In one example, a device is described to include a device interface that receives data from at least one data source; a data shuffle unit that collects the data received from the at least one data source, receives a descriptor that describes a data shuffle operation to perform on the data received from the at least one data source, performs the data shuffle operation on the collected data to produce shuffled data, and provides the shuffled data to at least one data target.

公开(公告)号：US20240146664A1

公开(公告)日：2024-05-02

申请号：US17979018

申请日：2022-11-02

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Gal Yefet ,  Daniel Marcovitch ,  Roee Moyal ,  Gil Bloch ,  Ariel Shahar ,  Yossef Itigin

IPC: H04L47/625 ,  H04L47/62 ,  H04L47/6275

CPC classification number: H04L47/6255 ,  H04L47/6225 ,  H04L47/6275

Abstract: In one embodiment, a system includes a memory to store a work queue including work queue entry slots, a processing device to write work queue entries to the work queue in a consecutive and cyclic manner, and a network device including a network interface to share packet over a network, and packet processing circuitry to read the work queue entries from the work queue in a consecutive and cyclic manner, the work queue entries indicating work to be performed associated with the packets, dequeue respective ones of the work queue entries read from the work queue responsively to reading the respective work queue entries from the work queue, add the work queue entries to an execution database used to track execution of the work queue entries, and execute the work queue entries in the execution database.

公开(公告)号：US11934332B2

公开(公告)日：2024-03-19

申请号：US17590339

申请日：2022-02-01

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Daniel Marcovitch ,  Dotan David Levi ,  Eyal Srebro ,  Eliel Peretz ,  Roee Moyal ,  Richard Graham ,  Gil Bloch ,  Sean Pieper

IPC: G06F13/42 ,  G06F7/76

CPC classification number: G06F13/42 ,  G06F7/76

Abstract: Devices, methods, and systems are provided. In one example, a device is described to include a device interface that receives data from at least one data source; a data shuffle unit that collects the data received from the at least one data source, receives a descriptor that describes a data shuffle operation to perform on the data received from the at least one data source, performs the data shuffle operation on the collected data to produce shuffled data, and provides the shuffled data to at least one data target.

公开(公告)号：US20230362097A1

公开(公告)日：2023-11-09

申请号：US17990552

申请日：2022-11-18

Applicant: Mellanox Technologies, Ltd.

Inventor： Natan Manevich ,  Dotan David Levi ,  Alex Vaynman ,  Roee Moyal ,  Alex Rosenbaum ,  Stanislav Raitsyn ,  Yuval Atias

IPC: H04L47/25 ,  H04L47/22

CPC classification number: H04L47/25 ,  H04L47/22

Abstract: Aspects of the present disclosure are directed to systems, methods, and computer readable media for dynamic data transfer rate control. One method includes alternating a network device between a plurality of supported data transfer rates that are supported by the network device to achieve an unsupported data transfer rate that is not supported by the network device. Another method includes adding one or more dummy work descriptors to a data stream, and transmitting the data stream including the one or more dummy work descriptors at a supported data transfer rate that is supported by a network device to achieve an effective unsupported data transfer rate that is not supported by the network device.

公开(公告)号：US11762773B2

公开(公告)日：2023-09-19

申请号：US17863453

申请日：2022-07-13

Applicant: Mellanox Technologies, Ltd.

Inventor： Daniel Marcovitch ,  Gil Bloch ,  Richard Graham ,  Ariel Shahar ,  Roee Moyal ,  Igor Voks

IPC: G06F12/0813 ,  G06F12/06 ,  G06F9/54 ,  G06F9/50

CPC classification number: G06F12/0813 ,  G06F9/5011 ,  G06F9/544 ,  G06F12/063 ,  G06F2209/508

Abstract: A network device in a communication network includes a controller and processing circuitry. The controller is configured to manage execution of an operation whose execution depends on inputs from a group of one or more work-request initiators. The processing circuitry is configured to read one or more values, which are set by the work-request initiators in one or more memory locations that are accessible to the work-request initiators and to the network device, and to trigger execution of the operation in response to verifying that the one or more values read from the one or more memory locations indicate that the work-request initiators in the group have provided the respective inputs.

公开(公告)号：US20220352998A1

公开(公告)日：2022-11-03

申请号：US17246730

申请日：2021-05-03

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Dotan David Levi ,  Wojciech Wasko ,  Natan Manevich ,  Roee Moyal ,  Eliel Peretz ,  Eran Ben Elisha ,  Ariel Almog ,  Teferet Geula ,  Amit Mandelbaum

IPC: H04J3/06 ,  H04L12/26 ,  H04L29/08

Abstract: In one embodiment, an event processing system includes a clock configured to provide time values, and event processing circuitry, which is configured to generate a confidence level indicative of a degree of confidence of an accuracy of a timestamp, the timestamp being generated for an event responsively to a time value indicative of when an operation associated with the event occurred.

公开(公告)号：US11088966B2

公开(公告)日：2021-08-10

申请号：US16672682

申请日：2019-11-04

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Adi Menachem ,  Alex Shpiner ,  Noam Bloch ,  Eitan Zahavi ,  Idan Burstein ,  Dror Bohrer ,  Roee Moyal

IPC: H04L1/00 ,  H04L12/931 ,  H04L12/861 ,  H04L12/851 ,  H04L12/935

Abstract: A network adapter includes a host interface and circuitry. The host interface is configured to connect locally between the network adapter and a host via a bus. The circuitry is configured to receive from one or more source nodes, over a communication network to which the network adapter is coupled, multiple packets destined to the host, and temporarily store the received packets in a queue of the network adapter, to send the stored packets from the queue to the host over the bus, to monitor a performance attribute of the bus, and in response to detecting, based at least on the monitored performance attribute, an imminent overfilling state of the queue, send a congestion notification to at least one of the source nodes from which the received packets originated.

公开(公告)号：US20190171612A1

公开(公告)日：2019-06-06

申请号：US16224834

申请日：2018-12-19

Applicant: Mellanox Technologies, Ltd.

Inventor： Ariel Shahar ,  Roee Moyal ,  Ali Ayoub ,  Michael Kegan

IPC: G06F15/173 ,  G06F15/167 ,  G06F13/28 ,  H04L9/32 ,  H04L9/06

Abstract: A network adapter includes a network interface that communicates packets over a network, a host interface connected locally to a host processor and to a host memory, and processing circuitry, coupled between the network interface and the host interface, and is configured to receive in a common queue, via the host interface, (i) a processing work item specifying a source buffer in the host memory, a data processing operation, and a first address in the host memory, and (ii) an RDMA write work item specifying the first address, and a second address in a remote memory. In response to the processing work item, the processing circuitry reads data from the source buffer, applies the data processing operation, and stores the processed data in the first address. In response to the RDMA write work item the processing circuitry transmits the processed data, over the network, for storage in the second address.