公开(公告)号：US20200021484A1

公开(公告)日：2020-01-16

申请号：US16582229

申请日：2019-09-25

Applicant: Oracle International Corporation

Inventor： Harald Høeg ,  Bjørn Dag Johnsen ,  Line Holen

IPC: H04L12/24 ,  H04L29/08 ,  H04L29/12 ,  G06F9/50 ,  G06F9/48 ,  G06F13/40 ,  G06F12/0806 ,  H04L29/06 ,  G06F9/455 ,  H04L12/911 ,  H04L12/715 ,  H04L12/46 ,  H04L12/931

Abstract: Systems and methods for host-side configuration of a host channel adapter (HCA). An exemplary embodiment can provide a HCA, including a control circuit with a processor and a memory, and at least one port operative to connect the HCA to a network fabric. Additionally, the HCA can include a subnet management agent (SMA) that executes on the HCA, and a software driver for the HCA that includes a control application programming interface (API) that exposes functionality to hyper-privileged software executing on a host. The hyper-privileged software can set, through the control API, configurable variables stored in the memory of the HCA. Based on the value of the set variables, the HCA can operate in one of a legacy mode or one or more other modes.

公开(公告)号：US10461947B2

公开(公告)日：2019-10-29

申请号：US16022998

申请日：2018-06-29

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Bartosz Bogdanski ,  Line Holen

IPC: H04L12/18 ,  H04L12/761 ,  H04L12/947 ,  H04L12/861 ,  H04L12/753 ,  H04L12/751 ,  G06F9/455 ,  H04L12/24 ,  H04L12/931 ,  H04L12/713

Abstract: Systems and methods for providing default multicast local identifier values per subnet partition as additional subnet management agent attributes in a high performance computing environment. In accordance with an embodiment, a single multicast local identifier can be associated with multiple multicast group identifiers when the multiple multicast group identifiers are associated with a same subnet partition. That is, a default MLID for each subnet partition (i.e. either all subnet partitions or those subnet partitions that are defined to have multicast communication) can be provided. A subnet node can have a default multicast local identifier table for storing default multicast local identifiers. A relationship between the partition key table of the node and the default multicast local identifier table of the nod can map default assigned multicast local identifiers to relevant partitions.

公开(公告)号：US10432414B2

公开(公告)日：2019-10-01

申请号：US15927448

申请日：2018-03-21

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Bjørn Dag Johnsen ,  Bartosz Bogdanski ,  Line Holen

IPC: H04L12/18 ,  H04L12/24 ,  H04L12/753 ,  G06F16/22 ,  H04L12/761 ,  H04L12/805 ,  H04L12/933 ,  G06F9/455 ,  H04L12/755 ,  H04L12/931 ,  H04L29/12 ,  H04L29/08 ,  H04L29/06 ,  H04L12/935

Abstract: Systems and methods for providing multicast group (MCG) membership relative to partition membership in a high performance computing environment. In accordance with an embodiment, by allowing a subnet manager of a local subnet to be instructed that all ports that are members of the relevant partition should be set up as members for a specific multicast group, the SM can perform a more efficient multicast-routing process. It is also possible to limit the IB client interaction with subnet administration conventionally required to handle join and leave operations. Additionally, subnet manager overhead can be reduced by creating a spanning tree for the routing of multicast packets that includes each of the partition members added to the multicast group, instead of creating a spanning tree after each multicast group join request is received, as conventionally required.

公开(公告)号：US20190260675A1

公开(公告)日：2019-08-22

申请号：US16399195

申请日：2019-04-30

Applicant: Oracle International Corporation

Inventor： Bjørn Dag Johnsen ,  Bartosz Bogdanski ,  Line Holen

IPC: H04L12/741 ,  H04L12/937 ,  H04L12/18 ,  H04L12/931 ,  H04L29/12 ,  H04L12/751 ,  H04L12/815 ,  H04L12/24 ,  G06F9/455 ,  H04L12/733 ,  H04L12/46 ,  H04L12/713 ,  H04L12/721 ,  H04L12/761 ,  H04L29/06 ,  H04L12/933 ,  H04L12/753

Abstract: Systems and methods for supporting unique multicast forwarding across multiple connected subnets in a high performance computing environment. In accordance with an embodiment, by enforcing that incoming (i.e., incoming on a router port of a subnet) multicast packets have SGIDs (source global identifiers) that correspond to a restricted set of source subnet numbers when entering the ingress router ports to a local subnet, it is possible to ensure that multicast packets sent from one subnet are never returned to the same subnet through a different set of connected router ports (i.e., avoid looping multicast packets).

公开(公告)号：US10355992B2

公开(公告)日：2019-07-16

申请号：US15413149

申请日：2017-01-23

Applicant: Oracle International Corporation

Inventor： Line Holen ,  Bjørn Dag Johnsen ,  Bartosz Bogdański

IPC: H04L12/741 ,  H04L12/24 ,  H04L12/815 ,  H04L12/937 ,  H04L29/06 ,  H04L12/46 ,  H04L12/931 ,  H04L29/12 ,  H04L12/751 ,  H04L12/18 ,  H04L12/753 ,  H04L12/933 ,  G06F9/455 ,  H04L12/761 ,  H04L12/721 ,  H04L12/713

Abstract: Systems and methods for supporting SMP connectivity checks across virtual router in a high performance computing environment. In accordance with an embodiment, SMA model enhancements allow for the possibility to send a packet (i.e., SMP) that is addressed to a local router port. The SMA where the packet is addressed can receive the packet, and then apply a new attribute that defines that the requested information is on a remote node (e.g., connected by a physical link across subnets). In accordance with an embodiment, the SMA can operate as a proxy (receives a SMP and sends another request), or the SMA can modify the original packet and send it on as an inter-subnet packet.

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：US20190141166A1

公开(公告)日：2019-05-09

申请号：US16238345

申请日：2019-01-02

Applicant: Oracle International Corporation

Inventor： Bjørn Dag Johnsen ,  Harald Høeg ,  Line Holen

IPC: H04L29/08 ,  H04L12/715 ,  H04L12/24 ,  H04L29/12 ,  H04L12/46 ,  G06F9/48 ,  G06F13/40 ,  G06F12/0806 ,  H04L29/06 ,  H04L12/931 ,  G06F9/455 ,  G06F9/50 ,  H04L12/911

Abstract: Systems and methods for using a virtual machine fabric profiles to reduce virtual machine downtime during migration. An exemplary embodiment can provide a subnet manager (SM) and a virtual machine fabric profile that is accessible by the subnet manager, and where the virtual machine fabric profile includes a virtual host channel adapter (vHCA) configuration. The SM can receive a request to preregister the vHCA with a first physical host channel adapter (HCA) while the vHCA is already actively registered with a second physical HCA. The subnet manager can send the vHCA configuration to the first physical HCA for preregistration. After preregistration, the virtual link between the vHCA and a vSwitch of the first physical HCA can be left unestablished, until the SM determines that a virtual link between the vHCA and a vSwitch on the second physical HCA has been disconnected.

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。