Invention Grant
US07975090B2 Method for efficient I/O controller processor interconnect coupling supporting push-pull DMA read operations
失效
支持推挽DMA读取操作的高效I / O控制器处理器互连耦合方法
- Patent Title: Method for efficient I/O controller processor interconnect coupling supporting push-pull DMA read operations
- Patent Title (中): 支持推挽DMA读取操作的高效I / O控制器处理器互连耦合方法
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Application No.: US12498899Application Date: 2009-07-07
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Publication No.: US07975090B2Publication Date: 2011-07-05
- Inventor: Florian Auernhammer
- Applicant: Florian Auernhammer
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Scully, Scott, Murphy & Presser, P.C.
- Agent Stephen Kaufman, Esq.
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F13/36
Abstract:
A system for I/O controller-processor interconnect coupling supporting a push-pull DMA read operation, in one aspect, may comprise a processor interconnect comprising a plurality of caches and memory subsystems and an I/O controller coupled with the processor interconnect. The I/O controller may comprise a plurality of DMA read request queues, a DMA read slot pool comprising a plurality of DMA read slots, and an expander logic determining a priority of requests in said request queues.
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