Failover mechanisms in RDMA operations

RS Blackmore, FC Chang, P Chaudhary… - US Patent …, 2011 - Google Patents
In remote direct memory access transfers in a multinode data processing system in which
the nodes communicate with one another through communication adapters coupled to a …

Arbitration system for a shared DMA logic on a network adapter with a large number of competing priority requests having predicted latency field

KK Ramakrishnan, M Ben-Nun, PJ Roman - US Patent 5,794,073, 1998 - Google Patents
In accordance with principles of the invention, there is provided an arbitration system for
multiple requesters of a shared data transfer resource, such as a system bus or a peripheral …

Early interrupt notification in RDMA and in DMA operations

R Blackmore, L Helmer, P Heywood… - US Patent App. 11 …, 2006 - Google Patents
In a multinode data processing system in which data is transferred, via direct memory access
(DMA) or in remote direct memory access (RDMA), from a source node to at least one …

RDMA server (OSI) global TCE tables

RS Blackmore, P Chaudhary, JE Goscinski… - US Patent …, 2008 - Google Patents
In remote direct memory access (RDMA) transfers in a multinode data processing system in
which the nodes communicate with one another through communication adapters coupled …

Efficient zero copy transfer of messages between nodes in a data processing system

C Bender, W Carroll, N Dange, J Houston… - US Patent App. 10 …, 2005 - Google Patents
A system and method are provided which permit the direct transfer of information in
message packet format directly from memory locations within one node of a data processing …

Interface internet protocol fragmentation of large broadcast packets in an environment with an unaccommodating maximum transfer unit

FC Chang, P Chaudhary, JM Doxtader - US Patent 7,522,597, 2009 - Google Patents
In a multinode data processing system in which the nodes communicate with one another
through communication adapters coupled to a switch or network, a method is provided for …

Error recovery for data processing systems transferring message packets through communications adapters

C Bender, J Houston, G Salyer - US Patent App. 10/685,119, 2005 - Google Patents
A method and system are provided for error recovery in the process of message packet
transfer using communications adapters connected between data processing nodes and a …

Remote direct memory access with striping over an unreliable datagram transport

R Blackmore, P Chaudhary, J Goscinski… - US Patent App. 11 …, 2006 - Google Patents
In a multinode data processing system in which nodes exchange information over a network
or through a switch, a structure and mechanism are provided which enables data packets to …

System for performing DMA transfer with a pipeline control switching such that the first storage area contains location of a buffer for subsequent transfer

J Sethuram, H Sadger, KC Kahn, F Mighani - US Patent 5,828,903, 1998 - Google Patents
The present invention teaches a new system for transferring data between a network and
hosts coupled to the network. The system uses an adapter, that is coupled between the host …

Non-disruptive failover of RDMA connection

H Shankar, H Liu, H Li - US Patent 8,627,136, 2014 - Google Patents
BACKGROUND RDMA technology reduces processor workload in the transmission and
reception of data across a network between two computer nodes by transferring data directly …