Abstract: Proxy nodes perform TCP/IP processing on behalf of application nodes, utilize lightweight protocols to communicate with application nodes, and communicate with network nodes and network clients using Transmission Control Protocol/Internet Protocol (TCP/IP).

Abstract: An apparatus and method related to performing Remote Direct Memory Access Request (“RDMA”) is presented. In one embodiment, the apparatus comprises Remote direct memory access (“RDMA”) logic that executes a direct memory access (“DMA”) request from the remote peer. The apparatus further comprising a protection checking logic to verify a key and a target address in the DMA request and conversion logic to convert the target address to an input/output virtual address (“IOVA”) if the conversion is required. The IOVA is to be translated to the host physical address by an address translation unit at another hardware subsystem.

Abstract: A data network and a method for providing prioritized data movement between endpoints connected by multiple logical channels. Such a data network may include a first node comprising a first plurality of first-in, first-out (FIFO) queues arranged for high priority to low priority data movement operations; and a second node operatively connected to the first node by multiple control and data channels, and comprising a second plurality of FIFO queues arranged in correspondence with the first plurality of FIFO queues for high priority to low priority data movement operations via the multiple control and data channels; wherein an I/O transaction is accomplished by one or more control channels and data channels created between the first node and the second node for moving commands and data for the I/O transaction during the data movement operations, in the order from high priority to low priority.

Abstract: A data network and a method for providing prioritized data movement between endpoints connected by multiple logical channels. Such a data network may include a first node comprising a first plurality of first-in, first-out (FIFO) queues arranged for high priority to low priority data movement operations; and a second node operatively connected to the first node by multiple control and data channels, and comprising a second plurality of FIFO queues arranged in correspondence with the first plurality of FIFO queues for high priority to low priority data movement operations via the multiple control and data channels; wherein an I/O transaction is accomplished by one or more control channels and data channels created between the first node and the second node for moving commands and data for the I/O transaction during the data movement operations, in the order from high priority to low priority.

Abstract: An apparatus and a system may include an adaptation module, a plurality of Direct Transport Interfaces (DTIs), a DTI accelerator, and a Transport Control Protocol/Internet Protocol (TCP/IP) accelerator. The adaptation module may provide a translated sockets call from an application program to one of the DTIs, where an included set of memory structures may couple the translated sockets call to the DTI accelerator, which may in turn couple the set of memory structures to the TCP/IP accelerator. An article may include data causing a machine to perform a method including: receiving an application program sockets call at the adaptation module, deriving a translated sockets call from the application program sockets call, receiving the translated sockets call at a DTI, coupling the translated sockets call to a DTI accelerator using a set of memory structures in the DTI, and coupling the set of memory structures to a TCP/IP accelerator.

Abstract: An apparatus and a system may include an adaptation module, a plurality of Direct Transport Interfaces (DTIs), a DTI accelerator, and a Transport Control Protocol/Internet Protocol (TCP/IP) accelerator. The adaptation module may provide a translated sockets call from an application program to one of the DTIs, where an included set of memory structures may couple the translated sockets call to the DTI accelerator, which may in turn couple the set of memory structures to the TCP/IP accelerator. An article may include data causing a machine to perform a method including: receiving an application program sockets call at the adaptation module, deriving a translated sockets call from the application program sockets call, receiving the translated sockets call at a DTI, coupling the translated sockets call to a DTI accelerator using a set of memory structures in the DTI, and coupling the set of memory structures to a TCP/IP accelerator.

Abstract: Proxy nodes perform TCP/IP processing on behalf of application nodes, utilize lightweight protocols to communicate with application nodes, and communicate with network nodes and network clients using Transmission Control Protocol/Internet Protocol (TCP/IP).

Abstract: A virtual connection created between an application program and a selected I/O device is used as a communications medium for controlling I/O processing of the I/O device by the application program. The virtual connection is implemented as a system area network connecting a process of the application program and the I/O device. The application program registers the application program's memory that the application program shares with the I/O device (i.e., gives access rights to the I/O device) with the system area network. Once the virtual connection is created and initialized, the application program uses the virtual connection to send request messages for I/O services to the I/O device and to receive reply messages from the I/O device. The I/O device uses the virtual connection to obtain source data from the application program's memory for I/O write operations and to transfer data to the application program's memory for I/O read operations.

Abstract: A first host system directs an I/O device to transfer data directly between a requesting application program's buffers on a second host system and an I/O unit coupled to the I/O device without the need to pass through the first host system. Since the first host system retains control of the I/O request, it maintains security and protection features at the same time as realizing increases in performance gained from not having to participate in the actual data transfer. This direct movement capability supports peer-to-peer operation where a number of different I/O units, each with its own physical memory addressing domain, require access to the same I/O device. The direct movement capability is also useful in clustered systems. Clustered host systems are allowed direct access to an I/O device for data transfer without intervention by the host system owning the I/O device.