Invention Grant
- Patent Title: Method and system for communication using multiple DMA channels
- Patent Title (中): 使用多个DMA通道进行通信的方法和系统
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Application No.: US13660928Application Date: 2012-10-25
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Publication No.: US08677044B1Publication Date: 2014-03-18
- Inventor: Rajendra R. Gandhi , Kathy K. Caballero , Kuangfu David Chu
- Applicant: QLOGIC, Corporation
- Applicant Address: US CA Aliso Viejo
- Assignee: QLOGIC, Corporation
- Current Assignee: QLOGIC, Corporation
- Current Assignee Address: US CA Aliso Viejo
- Agency: Klein, O'Neill & Singh, LLP
- Main IPC: G06F13/28
- IPC: G06F13/28 ; G06F13/00

Abstract:
Method and system for sending data from a memory of a computing system interfacing with a device is provided. An input/output control block (IOCB) from the computing system for transferring the data from the memory of the computing system is received by the device. The device then allocates a plurality of DMA channels to the IOCB for transferring the data from the memory of the computing system when a number of pending input/output (I/O) requests when the IOCB is received is less than a number of available direct memory access (DMA) channels to receive the data from the memory of the computing system.
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