Patent application number | Description | Published |
20080219150 | AUTO-NEGOTIATION BY NODES ON AN INFINIBAND FABRIC - A method and system for digital communication wherein nodes exchange messages at a first data rate in order to coordinate testing at a second, higher data rate. After testing is completed, the nodes exchange test results at the first data rate, and if conditions are satisfactory for operation at the second data rate user data are transmitted at the second data rate. Otherwise, user data are transmitted at the first data rate. | 09-11-2008 |
20110029847 | PROCESSING OF DATA INTEGRITY FIELD - A network communication device includes a host interface, which is coupled to communicate with a host processor, having a memory, so as to receive a work request to convey one or more data blocks over a network. The work request specifies a memory region of a given data size, and at least one data integrity field (DIF), having a given field size, is associated with the data blocks. Network interface circuitry is configured to execute an input/output (I/O) data transfer operation responsively to the work request so as to transfer to or from the memory a quantity of data that differs from the data size of the memory region by a multiple of the field size, while adding the at least one DIF to the transferred data or removing the at least one DIF from the transferred data. | 02-03-2011 |
20110116512 | Dynamically-Connected Transport Service - A method of communication includes receiving, in a network interface device, first and second requests from an initiator process running on an initiator host to transmit, respectively, first and second data to first and second target processes running on one or more target nodes, via a packet network. A single dynamically-connected initiator context is allocated for serving both the first and second requests. A first connect packet referencing the dynamically-connected (DC) initiator context is directed to the first target process so as to open a first dynamic connection with the first target process, followed by transmission of the first data over the first dynamic connection. The first dynamic connection is closed after the transmission of the first data, and a second connect packet is transmitted so as to open a second dynamic connection with the second target process, followed by transmission of the second data. | 05-19-2011 |
20110119673 | CROSS-CHANNEL NETWORK OPERATION OFFLOADING FOR COLLECTIVE OPERATIONS - A Network Interface (NI) includes a host interface, which is configured to receive from a host processor of a node one or more cross-channel work requests that are derived from an operation to be executed by the node. The NI includes a plurality of work queues for carrying out transport channels to one or more peer nodes over a network. The NI further includes control circuitry, which is configured to accept the cross-channel work requests via the host interface, and to execute the cross-channel work requests using the work queues by controlling an advance of at least a given work queue according to an advancing condition, which depends on a completion status of one or more other work queues, so as to carry out the operation. | 05-19-2011 |
20110173352 | Power Reduction on Idle Communication Lanes - A method for communication includes establishing a full-duplex communication link between first and second nodes. The link includes multiple first lanes for conveying first communication traffic in a first link direction and multiple second lanes for conveying second communication traffic in a second link direction. Signals are exchanged between the first and second nodes to indicate a requested change in lane activity in the first link direction. Responsively to the signals, a number of the first lanes that are active is changed so that the first node conveys the first communication traffic to the second node over a first number of the first lanes, while the second node conveys the second communication traffic to the first node over a second number of the second lanes, which is different from the first number. | 07-14-2011 |
20130114599 | PACKET STEERING - A method for steering packets, including receiving a packet and determining parameters to be used in steering the packet to a specific destination, in one or more initial steering stages, based on one or more packet specific attributes. The method further includes determining an identity of the specific destination of the packet in one or more subsequent steering stages, governed by the parameters determined in the one or more initial stages and one or more packet specific attributes, and forwarding the packet to the determined specific destination. | 05-09-2013 |
20130159568 | Recovering dropped instructions in a network interface controller - A method for operating a peripheral device includes receiving at the peripheral device service orders, which are identified with respective service instances and are submitted to the peripheral device over the bus by software applications running on a host processor, which write copies of the service orders to a memory. The received service orders are queued for execution by the peripheral device. When one or more of the service orders have been dropped from the queue prior to execution, a recovery of a selected service instance is initiated by submitting a read request from the peripheral device to the memory over the bus to receive a copy of any unexecuted service order associated with the service instance. | 06-20-2013 |
20140129784 | METHODS AND SYSTEMS FOR POLLING MEMORY OUTSIDE A PROCESSOR THREAD - A system and method of monitoring a memory address is disclosed which may replace a polling operation on a memory by determining a memory address to monitor, notifying a cache controller of the memory address, and cause execution on a polling thread to wait. The cache controller may then monitor the memory address and notify the processor to resume execution of the thread. While the processor is waiting to be notified, it may enter a power save state or allow more time to be allocated to other threads being executed. | 05-08-2014 |
20140324939 | CROSS-CHANNEL NETWORK OPERATION OFFLOADING FOR COLLECTIVE OPERATIONS - A Network Interface (NI) includes a host interface, which is configured to receive from a host processor of a node one or more cross-channel work requests that are derived from an operation to be executed by the node. The NI includes a plurality of work queues for carrying out transport channels to one or more peer nodes over a network. The NI further includes control circuitry, which is configured to accept the cross-channel work requests via the host interface, and to execute the cross-channel work requests using the work queues by controlling an advance of at least a given work queue according to an advancing condition, which depends on a completion status of one or more other work queues, so as to carry out the operation. | 10-30-2014 |