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    Selective retransmission of packets
    1.
    发明授权
    Selective retransmission of packets 有权

    公开(公告)号：US11870590B2

    公开(公告)日：2024-01-09

    申请号：US17107990

    申请日：2020-12-01

    Applicant: MELLANOX TECHNOLOGIES, LTD.

    Inventor： Idan Burstein ,  Roee Moyal ,  Ariel Shahar ,  Noam Bloch ,  Ran Koren

    IPC: H04L1/18 ,  H04L1/1829 ,  G06F15/173

    CPC classification number: H04L1/1829 ,  G06F15/17331

    Abstract: A method for data transfer includes transmitting a sequence of data packets from a first computer over a network to a second computer in a single RDMA data transfer transaction. Upon receipt of a second packet in the sequence without previously having received the first packet, the second computer sends a NAK packet over the network to the first computer, indicating that the first packet was not received. A retransmission mode is selected responsively to the type of the transaction, such that when the transaction is of a first type, the first packet is retransmitted from the first computer to the second computer in response to the NAK packet without retransmitting the second packet, and when the transaction is of a second type, both the first and second packets are retransmitted from the first computer to the second computer in response to the NAK packet.

    System for improving input / output performance
    4.
    发明授权
    System for improving input / output performance 有权

    公开(公告)号：US11327909B1

    公开(公告)日：2022-05-10

    申请号：US17079536

    申请日：2020-10-26

    Applicant: MELLANOX TECHNOLOGIES, LTD.

    Inventor： Eliav Bar-Ilan ,  Oren Duer ,  Amir Ancel ,  Yossi Kendel ,  Idan Burstein

    IPC: G06F13/16 ,  G06F12/123

    Abstract: In one embodiment, data communication apparatus includes a network interface including one or more ports for connection to a packet data network and configured to receive content transfer requests from at least one remote device over the network, a storage sub-system to be connected to local peripheral storage devices, and including at least one peripheral interface, and a memory sub-system including a cache and RAM, and processing circuitry to manage transfer of content between the remote device(s) and the local peripheral storage devices via the peripheral interface(s) and the cache, responsively to the content transfer requests, while pacing commencement of serving of respective ones of the content transfer requests responsively to a metric of the storage sub-system so that while ones of the content transfer requests are being served, other ones of the content transfer requests pending serving are queued in at least one pending queue.

    Adjusting rate of outgoing data requests for avoiding incast congestion
    5.
    发明授权
    Adjusting rate of outgoing data requests for avoiding incast congestion 有权

    公开(公告)号：US11102129B2

    公开(公告)日：2021-08-24

    申请号：US16559640

    申请日：2019-09-04

    Applicant: Mellanox Technologies, Ltd.

    Inventor： Idan Burstein ,  Noam Bloch ,  Roee Moyal ,  Ariel Shahar ,  Yamin Friedman ,  Yuval Shpigelman

    IPC: H04L12/28 ,  H04L12/801 ,  H04L12/927 ,  H04L12/863 ,  H04L29/08 ,  H04L12/841

    Abstract: A network adapter includes circuitry and one or more ports. The ports connect to a communication network including multiple network elements. The circuitry accesses outbound messages that are pending to be sent over the communication network to multiple remote nodes via the ports. At least some of the outbound messages request the remote nodes to send respective amounts of data back to the network adapter. Based on the amounts of data requested by the outbound messages, the circuitry forecasts a bandwidth of inbound response traffic, which is expected to traverse a selected network element in response to the outbound messages toward the network adapter, determines a schedule for transmitting the outbound messages to the remote nodes so that the forecasted bandwidth meets a bandwidth supported by the selected network element, and transmits the outbound messages to the remote nodes in accordance with the determined schedule.

    Receive queue with stride-based data scattering
    6.
    发明授权
    Receive queue with stride-based data scattering 有权

    公开(公告)号：US10210125B2

    公开(公告)日：2019-02-19

    申请号：US15460251

    申请日：2017-03-16

    Applicant: Mellanox Technologies, Ltd.

    Inventor： Idan Burstein

    IPC: G06F13/40 ,  G06F9/54

    Abstract: A method for communication includes posting in a queue a sequence of work items pointing to buffer consisting of multiple strides of a common, fixed size in a memory. A NIC receives data packets from a network containing data to be pushed to the memory. The NIC reads from the queue a first work item pointing to a first buffer and writes data from a first packet to a first number of the strides in the first buffer without consuming all of the strides in the first buffer. The NIC then writes at least a part of the data from a second packet to the remaining strides in the first buffer. When all the strides in the first buffer have been consumed, the NIC reads from the queue a second work item pointing to a second buffer, and writes further data to the strides in the second buffer.

    Address translation services for direct accessing of local memory over a network fabric
    7.
    发明授权
    Address translation services for direct accessing of local memory over a network fabric 有权

    公开(公告)号：US10031857B2

    公开(公告)日：2018-07-24

    申请号：US14953462

    申请日：2015-11-30

    Applicant: MELLANOX TECHNOLOGIES LTD.

    Inventor： Adi Menachem ,  Shlomo Raikin ,  Idan Burstein ,  Michael Kagan

    IPC: G06F13/36 ,  G06F12/1009 ,  G06F12/1027 ,  G06F13/38 ,  G06F13/28

    Abstract: A method in a system that includes first and second devices that communicate with one another over a fabric that operates in accordance with a fabric address space, and in which the second device accesses a local memory via a local connection and not over the fabric, includes sending from the first device to a translation agent (TA) a translation request that specifies an untranslated address in an address space according to which the first device operates, for directly accessing the local memory of the second device. A translation response that specifies a respective translated address in the fabric address space, which the first device is to use instead of the untranslated address is received by the first device. The local memory of the second device is directly accessed by the first device over the fabric by converting the untranslated address to the translated address.

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