Oracle International Corporation

Prabhunandan Narasimhamurthy

Bjorn Dag Johnsen

Arvind Srinivasan

Line Holen

Bartosz Bogdański

Ankita Bhandary

Bartosz Bogdanski

Dag Georg Moxnes

Bjørn Dag Johnsen

Predrag Hodoba

System and method for supporting configurable legacy P_Key table abstraction using a bitmap based hardware implementation in a high performance computing environment. A mapping table in DRAM can be provided through the use of a software based SMA that implements the mapping table. With this mapping table, it is possible to provide a legacy compliant view of a bit map based P_Key table. Such a legacy compliant view can be called a virtual P_Key table, or a configurable legacy P_Key table abstraction.

System and method for supporting configurable legacy P_Key table abstraction using a bitmap based hardware implementation in a high performance computing environment

Systems and methods for supporting SMA level abstractions at router ports for enablement of data traffic in a high performance computing environment. In accordance with an embodiment, a subnet manager in a local subnet is responsible for enabling data traffic between subnets in a high performance computing environment. The SM can configure and set a data attribute at a switch port configured as a router port such that incoming data packets can be checked against the attribute to determine whether the data packet's destination is allowed or disallowed to receive inter-subnet data traffic.

System and method for supporting SMA level abstractions at router ports for enablement of data traffic in a high performance computing environment

Systems and methods for supporting SMA level abstractions at router ports for GRH to LRH mapping tables in a high performance computing environment. Ingress port mapping of GRH to new LRH can be reduced to minimally include DGID to DLID mapping. By further reducing the complexity by assuming all packets received at a subnet are addressed to a correct subnet (and also taking into account that correct subnet destination can be checked independently of the individual mapping entries), the DGID address can be simplified to a DGUID address, allowing for additional mappings within a same memory size.

System and method for supporting SMA level abstractions at router ports for GRH to LRH mapping tables in a high performance computing environment

Systems and methods for supporting SMA level handling to ensure subnet integrity in a high performance computing environment. In accordance with an embodiment, in order to ensure subnet integrity, a SMA at an entry port can operate such that all incoming packets are forwarded to an embedded processor (firmware) no matter where the packet is addressed. Each incoming packet can thus be filtered by an embedded processor. If the packet is valid (for example, includes a second receiver flag and is addressed appropriately), the packet can be allowed. However, if some portion of the validation fails, the packet can be dropped before being allowed entry into the subnet, thus ensuring the integrity of the subnet from erroneous and/or dangerous packets.

System and method for supporting SMA level handling to ensure subnet integrity in a high performance computing environment

A system and method can support subnet management in a network environment. A network switch in the network environment can provide a transactional interface, wherein the transactional interface allows a user to interact with the network environment using a transaction. The transactional interface allows a user to group one or more operations in the transaction, and ensures that no conflicting operations are included in the transaction.

System and method for providing a transactional command line interface (CLI) in a network environment

A system and method can support network management in a network environment. The network environment can include a plurality of configuration daemons (CDs), wherein each CD resides on a switch in the network environment. The CD operates to receive a configuration file that includes a list of known management key (M_Key) values. Furthermore, the CD operates to store the configuration file, and make the configuration file available to a local subnet manager (SM) on the switch, wherein the local SM is associated with a currently used M_Key value. Then, the CD operates to update the local SM with a new M_Key, after receiving an instruction from a master CD that is associated with a master SM in the network environment.

System and method for supporting state synchronization in a network environment

A system and method can support network management in a network environment. The network environment can include a plurality of configuration daemons (CDs), wherein a master CD is an active CD on a switch with a master subnet manager (SM). The master CD operates to perform consistency check on one or more states associated with one or more peer CDs in the network environment, and replicate a configuration file to the one or more peer CDs, wherein the configuration file includes at least one management key (M_Key) value.

Growing community of inventors

Santa Clara, CA, United States of America

Prabhunandan Narasimhamurthy