Invention Grant
US08904058B2 Selecting direct memory access engines in an adaptor input/output (I/O) requests received at the adaptor
有权
在适配器上接收的适配器输入/输出（I / O）请求中选择直接内存访问引擎
- Patent Title: Selecting direct memory access engines in an adaptor input/output (I/O) requests received at the adaptor
- Patent Title (中): 在适配器上接收的适配器输入/输出（I / O）请求中选择直接内存访问引擎
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Application No.: US13118093Application Date: 2011-05-27
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Publication No.: US08904058B2Publication Date: 2014-12-02
- Inventor: Charles S. Cardinell , Roger G. Hathorn , Matthew J. Kalos , Timothy J. Van Patten
- Applicant: Charles S. Cardinell , Roger G. Hathorn , Matthew J. Kalos , Timothy J. Van Patten
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Konrad Raynes Davda & Victor LLP
- Agent David W. Victor
- Main IPC: G06F13/28
- IPC: G06F13/28 ; G06F13/00 ; G06F9/50
Abstract:
Provided are a computer program product, system, and method for selecting Direct Memory Access (DMA) engines in an adaptor for processing Input/Output requests received at the adaptor. A determination is made of an assignment of a plurality of processors to the DMA engines, wherein each processor is assigned to use one of the DMA engines. I/O request related work for a received I/O request directed to the storage is processed by determining the DMA engine assigned to the processor processing the I/O request related work and accessing the determined DMA engine to perform the I/O related work.
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