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Equipment for controlling access of facilities according to the type of application

A technology for controlling pairs and facilities, applied in transmission systems, storage systems, digital transmission systems, etc., can solve problems such as logical partitions not being used

Inactive Publication Date: 2004-10-13
IBM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although logical partitioning is well known in the art, logical partitioning has not been applied to system area networks, such as InifiniBand network architectures

Method used

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  • Equipment for controlling access of facilities according to the type of application
  • Equipment for controlling access of facilities according to the type of application
  • Equipment for controlling access of facilities according to the type of application

Examples

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Embodiment Construction

[0029] The present invention provides an apparatus, system and method for controlling access to system resources based on usage classes. A preferred embodiment of the invention will be described in terms of the InifiniBand architecture, which is one possible system area network on which the invention can be used. A description of InfiniBand networks will therefore be provided with reference to Figures 1-11.

[0030] Referring now to the drawings and in particular to FIG. 1, there is illustrated a diagram of a distributed computer system in accordance with a preferred embodiment of the present invention. The distributed computer system represented in FIG. 1 takes the form of a system area network (SAN) 100 and is provided for illustrative purposes only, as the embodiments of the invention described below can be implemented on various other types and configurations of computer systems above is realized. For example, computer systems implementing the invention can range from a ...

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Abstract

An apparatus, system and method for controlling access to facilities based on usage class of a requestor are provided. With the apparatus, system and method, a two level protection mechanism is provided for protecting host channel adapter (HCA) facilities from unauthorized access. With the present invention, a first level of access is provided through virtual address translation and a mechanism for determining if the requestor of access may access a system memory address space page associated with a real address to which the virtual address maps. A second level of access is provided through the allocation of usage classes and determining a required usage class for accessing an HCA facility.

Description

technical field [0001] The present invention relates to an apparatus, system and method for controlling access to facilities according to usage classes. More specifically, the present invention provides a mechanism for controlling access to a host channel adapter facility associated with a logical portion based on a usage class associated with an access requestor. Background technique [0002] In a system area network (SAN) such as an InfiniBand (IB) network, hardware provides a messaging mechanism that can be used for input / output devices (I / O) and interprocess communication (IPC) between computing nodes in general . A process executing on a device accesses the SAN messaging hardware by posting send / receive messages to a send / receive work queue on the SAN Channel Adapter (CA). These processes are also called "consumers". [0003] The send / receive work queue (WQ) is assigned to a consumer as a queue pair (QP). The message can be sent via 5 different transfer types. Reli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/14H04L12/56
CPCG06F12/1491
Inventor 理查德·L·阿恩特布鲁斯·L·比克马戴维·F·克拉多克罗纳德·E·富斯托马斯·A·格雷格布鲁斯·M·沃克
Owner IBM CORP
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