Multiple queue pair access with single doorbell

Details Multiple queue pair access with single doorbell Multiple queue pair access with single doorbell

2001-11-26

2009-06-02

Nguyen, Van H (Department: 2195)

Electrical computers and digital processing systems: virtual mac

Task management or control

C718S102000, C710S022000, C710S039000, C709S245000, C709S250000

Reexamination Certificate

active

07543290

ABSTRACT:
A method for controlling access by processes running on a host device to a communication network includes assigning to each of the processes a respective doorbell address on a network interface adapter that couples the host device to the network and allocating instances of a communication service on the network, to be provided via the adapter, to the processes. Upon receiving a request submitted by a given one of the processes to its respective doorbell address to access one of the allocated service instances, the adapter conveys the data over the network using the specified instance of the service, subject to verifying, based on the doorbell address to which the request was submitted, that the specified instance was allocated to the given process.

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Elnozahy et al., “The Performance of Consistent Checkpointing”, Rice University Department of Computer Science, IEEE, 1992, pp. 39-47.
Miller et al., “Operating System Structure and Processor Architecture for a Large Distributed Single Address Space”, Computer Science and Engineering Department of Arizona State University, 1998.
Nagatsuka et al., Machine Translation for Japanese Patent JP 20000099331A, Apr. 2000.
The Infiniband™ (IB) Architecture Specification, Release 1.0, Oct. 2000 (available at: www.infinibandta.org).
U.S. Appl. No. 60/283,108, entitled: Host Channel Adapter EAS rev.02, filed Apr. 11, 2001.

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