International Business Machines Corporation

International Business Corporation

Stephen R Valley

Bruce H Ratcliff

Arthur James Stagg

Steven G Glassen

Jerry Wayne Stevens

Eugene P Hefferon

Michael E Baskey

Anthony R Sager

Chin Lee

Paul M Gioquindo

Angelo Macchiano

Donald W Schmidt

Patricia G Driever

Jeffrey Douglas Haggar

Richard P Tarcza

Frank William Brice

Ping T Chan

Ying-Yeung Li

George B Markos

Daniel Francis Casper

Hugh Edward Hockett

Leslie W Wyman

Jeffrey Alan Frey

Lap Thiet Huynh

Constantinos Kassimis

Jeffrey M Turner

Allan Samuel Meritt

Mooheng Zee

Maurice Isrel

Balachandar Rajaraman

Ingo Adlung

Nishant Ranjan

Abhishek Chakraborty

Kimberly Tekavec Bailey

Friedemann Baitinger

Francis Gassert

Thomas Donald Moore

Frank W Brice

Dan Vangor

Sudhir Alluri

Frances C Garofalo

Venkateshwarlu Kachem

Suhas D Mane

Sumesh K Naduvalath

Forrest A Schumacher

Frederick C Wong

Margaret Dubowsky

Kenneth J Oakes

Utz Bacher

Michael J Cadigan, Jr

John Scott Houston

Theodore Joseph Bohizic

Jeffrey Robert Warren

Dennis Ray Musselwhite

Richard T Brandle

Edward Zebrowski, Jr

Michael W Stayton

Gary R Morrill

Douglas N Lin

Michael S Cirulli

Aleksandra Brand

Daniel P Glaser

Embodiments herein describe techniques for establishing data constructs for a data device that enable communication between a host and a shared adapter. A shared adapter facilitates communication with one or more hosts coupled to a NIC. To do so, a host can establish the data device in each operating system that wishes to communicate with the shared adapter. This can include establishing data constructs such as storage block pages, queue indexes, and interrupt registers in the host memory. The host can then transmit a queue description record (QDR) to the shared adapter so the adapter can configure the queues and has the addresses of the data constructs in the host memory.

Data constructs for a shared network adapter

The embodiments herein describe configuring a data device that enables communication between a host and a shared network adapter. The data device can include data connections between the host and the shared network adapter. The data device can have both control queues in a control plane and data queues in a data plane. The control queues can be activated first in order to issue control commands to configure the data plane in the shared network adapter.

Configuration of data connections between a host and a shared network adapter

Embodiments herein relate to a master process being executed by a processor to control an upgrade to an application process. For instance, the master process initializes an environment for operating an application process and starting an execution of the application process within the environment. Further, the master process upgrades a code of the application process while the master process maintains the environment and the execution of the application process.

Concurrent code application in a stateful computing environment

An integrated hybrid system is provided. The hybrid system includes compute components of different types and architectures that are integrated and managed by a single point of control to provide federation and the presentation of the compute components as a single logical computing platform.

Management of a data network of a computing environment

A data connection of a shared resource is placed in isolation mode to remove its ability to communicate with other data connections of the shared resource. This ability to isolate the data connection is dynamic in that it can be turned on/off at any time. This provides increased data security for the entities using the data connection.

Data isolation in shared resource environments

Data received over a shared network interface is directly placed by the shared network interface in a designated memory area of a host. In providing this direct memory access, the incoming data packets are split, such that the headers are separated from the data. The headers are placed in a designated area of a memory buffer of the host. Additionally, the data is stored in contiguous locations within the buffer. This receive and store is performed without interruption to the host. Then, at a defined time, the host is interrupted to indicate the receipt and direct storage of the data.

Direct memory access with minimal host interruption

The emulation of a data processing I/O protocol employs a process which obviates the need to consider hardware specific functionality for which emulation is not an optimal solution. The particular protocol described in exemplary fashion herein is the OSA protocol as defined by Open System Adapter standards. The use of this emulation is also seen to leave in place all of the software tools otherwise employed.

Input/output processor (IOP) based emulation

A method for Ethernet virtualization using assisted frame correction. The method comprises receiving at a host adapter data packets from a network, storing the received data packets in host memory, storing the received data packets in a hardware queue located on the host adapter, setting a status indicator reflecting the status of the data packets based on results of the checking, and sending the status indicator to the host memory.

Ethernet virtualization using assisted frame correction

The emulation of an adapter for I/O to link a host data processing system to a local area network provides advantages of memory to memory transfer which results in higher data transfer rates while at the same time providing a mechanism for working with two data transfer vectors in an overlapping fashion.

Emulated Z-series queued direct I/O

Input/output processor (IOP) based zSeries emulation

An article of manufacture, method and system are provided for facilitating input/output (I/O) processing of at least one guest processing system. The article of manufacture includes at least one computer-usable medium having computer-readable program code logic to facilitate the I/O processing of the at least one guest processing system. The computer-readable program code logic when executing performing the following: emulating on a native system an I/O architecture for the at least one guest processing system, the emulating including: providing multiple device managers for a plurality of I/O devices of the I/O architecture; providing at least one communications adapter process interfacing the multiple device managers to the at least one network driver process; and wherein the multiple device managers translate I/O messages in at least one guest processing system format to messages in native system format for processing by the at least one communications adapter process, thereby facilitating I/O processing.

Facilitating input/output processing of one or more guest processing systems

Creating a unique identification for each stack in partitions of a host data computer such that a plurality of partitions may share a single adapter card during an Input/Output operation wherein the adapter card is exchanging data between the host and a Local Area Network. The adapter card includes a unique identifier pool for maintaining values of unique identifiers which are available for identifying the stacks. A deleted unique identifier for a stack may be reused by newly created stacks and may be reassigned to a recreated stack, if still available, when the stack had previously been deleted by the operating system, but is then recreated.

Shared resource support for internet protocols

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Valatie, NY, United States of America

Stephen R Valley