公开(公告)号：US11262824B2

公开(公告)日：2022-03-01

申请号：US16735450

申请日：2020-01-06

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Dag Georg Moxnes ,  Line Holen

IPC: G06F1/24 ,  G06F9/455 ,  H04L67/10 ,  G06F9/4401

Abstract: Systems and methods for supporting coordinated link up handling following a switch reset in a high performance computing environment. Systems and methods can ensure that when a switch of a fabric is rebooted, HCA ports connected to that switch will be set in Active state at the same time even though link training times for different ports may vary with up to several seconds.

公开(公告)号：US11082365B2

公开(公告)日：2021-08-03

申请号：US16779022

申请日：2020-01-31

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Dag Georg Moxnes ,  Line Holen ,  Bjørn Dag Johnsen

IPC: H04L12/931 ,  H04L12/933 ,  H04L12/947 ,  H04L29/08 ,  G06F9/451 ,  G06F16/22 ,  H04L12/753 ,  H04L12/24 ,  H04L12/26 ,  H04L12/935 ,  H04L12/751 ,  G06F9/455 ,  H04L29/06 ,  H04L12/44

Abstract: System and method for supporting scalable representation of switch port status in a high performance computing environment. In accordance with an embodiment, a scalable representation of switch port status can be provided. By adding a scalable representation of switch port status at each switch (both physical and virtual)—instead of getting all switch port changes individually, the scalable representation of switch port status can combine a number of ports that can scale by just using a few bits of information for each port's status.

公开(公告)号：US10348645B2

公开(公告)日：2019-07-09

申请号：US15412985

申请日：2017-01-23

Applicant: Oracle International Corporation

Inventor： Line Holen ,  Dag Georg Moxnes ,  Bjørn Dag Johnsen

IPC: H04L12/947 ,  H04L29/08 ,  G06F9/451 ,  H04L12/24 ,  H04L12/26 ,  H04L12/933 ,  H04L12/935 ,  H04L12/751 ,  H04L12/931 ,  G06F17/30 ,  G06F9/455 ,  H04L29/06 ,  H04L12/44

Abstract: System and method for supporting a flexible framework for extendable SMA attributes in a high performance computing environment. In accordance with an embodiment, an information attribute can provide for enhancements in a number of areas. For example, in addition to indicating which version of an interface a queried node supports, the information attribute can additionally provide a mask indicating which vendor specific SMA attributes the node supports. In this way, a subnet manager can identify a version of an interface at each node in a subnet, as well as each node's SMA attribute capabilities. In turn, this allows nodes to run different versions of an interface within a same subnet, without introducing confusion.

公开(公告)号：US20180309587A1

公开(公告)日：2018-10-25

申请号：US16023021

申请日：2018-06-29

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Line Holen ,  Dag Georg Moxnes

IPC: H04L12/18

CPC classification number: H04L12/185 ,  H04L12/1886

Abstract: Systems and methods for providing explicit multicast local identifier assignment for per-partition default multicast local identifiers defined as subnet manager policy input in a high performance computing environment. In accordance with an embodiment, an explicit multicast local identifier (MLID) assignment policy can be provided (as, e.g., administrative input) that explicitly defines which MLIDs will be used for which partitions in a subnet. Further, an MLID assignment policy can also define which dedicated MLIDs will be associated with given multicast group idnetifiers (for example, partition independent MLIDs). By employing such an MLID assignment policy, a new or restarted master subnet manger can observe and verify the MLIDs used for existing partitions, instead of generating new MGID to MLID mappings. In this way, changes in MLID associations for any corresponding MGID can be avoided as a result of master SM restarts or failovers, or any subnet-merge operations.

公开(公告)号：US20180278578A1

公开(公告)日：2018-09-27

申请号：US15927451

申请日：2018-03-21

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Line Holen ,  Dag Georg Moxnes

IPC: H04L29/12 ,  H04L12/931 ,  H04L29/08 ,  H04L12/755 ,  H04L12/18 ,  G06F17/30 ,  G06F9/455

Abstract: Systems and methods for providing dual multicast local identifiers (MLIDs) per multicast group to facilitate both full and limited partition members in a high performance computing environment. In accordance with an embodiment, in order to avoid the need for the above special handling of P_Key access violations, as well as to ensure complete isolation between limited partition members in terms of multicast traffic, two MLIDs can be allocated to a single MCG, in accordance with an embodiment. A first MLID can be allocated and used by end-ports for sending from full partition members to both full and limited partition members. Additionally, a second MLID can be allocated and used by end-ports for sending from limited partition members to full partition members. Using this scheme, a limited partition member can avoid sending multicast packets to other limited partition members in the MCG.

公开(公告)号：US09401963B2

公开(公告)日：2016-07-26

申请号：US14189442

申请日：2014-02-25

Applicant: Oracle International Corporation

Inventor： Bjørn Dag Johnsen ,  Line Holen ,  Dag Georg Moxnes

IPC: G06F15/173 ,  H04L29/08 ,  H04L29/06 ,  H04L12/24 ,  H04L12/863 ,  H04L29/12

CPC classification number: H04L67/16 ,  H04L41/0806 ,  H04L47/50 ,  H04L61/2069 ,  H04L63/1408 ,  H04L63/1458

Abstract: A system and method can support subnet management in a network environment, such as an engineered system for middleware and application execution or a middleware machine environment. A subnet manager (SM) can retrieve information for setting up a reliable connection (RC) between a subnet administrator (SA) and a client node in a subnet. Furthermore, the system can set up one or more connection states for a port associated with the SM node to establish the RC connection between the port associated with the SM node and a port associated with said client node. Then, the SM can activate the port associated with said client node.

Abstract translation: 系统和方法可以支持网络环境中的子网管理，例如用于中间件和应用程序执行的工程系统或中间件机器环境。 子网管理器（SM）可以检索在子网管理员（SA）和子网中的客户端节点之间建立可靠连接（RC）的信息。 此外，系统可以为与SM节点相关联的端口建立一个或多个连接状态，以建立与SM节点相关联的端口与与所述客户机节点相关联的端口之间的RC连接。 然后，SM可以激活与所述客户端节点相关联的端口。

公开(公告)号：US11968132B2

公开(公告)日：2024-04-23

申请号：US16104495

申请日：2018-08-17

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Line Holen ,  Dag Georg Moxnes

IPC: H04L49/356 ,  H04L45/02 ,  H04L45/16 ,  H04L45/48 ,  H04L49/201 ,  H04L67/025 ,  H04L67/1097 ,  H04L67/51 ,  H04L67/563 ,  H04L67/564 ,  H04L67/568 ,  H04L69/24

CPC classification number: H04L49/358 ,  H04L45/02 ,  H04L45/16 ,  H04L45/48 ,  H04L49/201 ,  H04L67/025 ,  H04L67/1097 ,  H04L67/51 ,  H04L67/563 ,  H04L67/564 ,  H04L67/568 ,  H04L69/24

Abstract: Systems and methods for using queue pair 1 (QP1) for receiving multicast based announcements in multiple partitions in a high performance computing. In accordance with an embodiment, by extending the scope of QP1 to also include receiving and sending multicast packets in any partition defined for the port, it is possible to implement generic MC based announcement and discovery without requiring the complexity of unique QPs for individual partitions, nor any update of QP configuration as a consequence of change of partition membership.

公开(公告)号：US20210058313A1

公开(公告)日：2021-02-25

申请号：US17089617

申请日：2020-11-04

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Line Holen ,  Dag Georg Moxnes

IPC: H04L12/755 ,  H04L12/931 ,  H04L12/24 ,  H04L12/761 ,  H04L12/753

Abstract: Systems and methods for path record handling in a fabric without host stack cooperation in a high performance computing environment. In a case where the subnet manager has determined “homogenous subnet/fabric” or “semi-homogenous subnet/fabric” status for the current topology, but is still receiving path queries, the subnet manager can use the relevant status to avoid any route evaluation and generate path record either only based on the configuration status of the requesting port in the homogenous case, or by comparing the configuration status of both ports in the semi-homogenous case.

公开(公告)号：US20180324092A1

公开(公告)日：2018-11-08

申请号：US16040107

申请日：2018-07-19

Applicant: Oracle International Corporation

Inventor： Bjørn Dag Johnsen ,  Dag Georg Moxnes ,  Bartosz Bogdanski ,  Pramod Venkatesh ,  Line Holen

IPC: H04L12/713 ,  H04L12/931 ,  H04L12/937 ,  H04L12/741 ,  H04L12/933 ,  H04L12/753

Abstract: Systems and methods for supporting dual-port virtual router in a high performance computing environment. In accordance with an embodiment, a dual port router abstraction can provide a simple way for enabling subnet-to-subnet router functionality to be defined based on a switch hardware implementation. A virtual dual-port router can logically be connected outside a corresponding switch port. This virtual dual-port router can provide an InfiniBand specification compliant view to a standard management entity, such as a Subnet Manager. In accordance with an embodiment, a dual-ported router model implies that different subnets can be connected in a way where each subnet fully controls the forwarding of packets as well as address mappings in the ingress path to the subnet.

公开(公告)号：US20180278491A1

公开(公告)日：2018-09-27

申请号：US15927444

申请日：2018-03-21

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Line Holen ,  Dag Georg Moxnes

IPC: H04L12/24 ,  H04L12/753

Abstract: Systems and methods for InfiniBand fabric optimizations to minimize SA access and startup failover times. A system can comprise one or more microprocessors, a first subnet, the first subnet comprising a plurality of switches, a plurality of host channel adapters, a plurality of hosts, and a subnet manager, the subnet manager running on one of the one or more switches and the plurality of host channel adapters. The subnet manager can be configured to determine that the plurality of hosts and the plurality of switches support a same set of capabilities. On such determination, the subnet manager can configure an SMA flag, the flag indicating that a condition can be set for each of the host channel adapter ports.