按数据链路的不同,可以将RTL8201内部划分为远程DMA(remote,DMA)通道和本地DMA(local DMA)通道两部分。本地DMA完成控制器与网线的数据交换,主处理器收发数据只需对远程DMA操作。
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After the transfer, you use the data in that structure to copy the string itself into your buffer in the local store using another DMA transfer, and wait for it to complete.
传输之后,使用那个结构中的数据来将字符串自身复制到本地存储的缓存区内,方法是借助另一个dma传输并等待它完成。
The SPE can't hold that much data at once in the 256kb local store, but it can DMA over one chunk at a time for processing.
SPE不能在256kb本地存储中一次保存这么多数据,但是它可以采用dma方式一次获取一部分数据进行处理。
By mapping multiple SPUs into a single process, it becomes possible to use DMA to transfer data between the local store of two SPUs directly.
通过将多个SPU映射到一个进程中,就可以使用DMA来在两个SPU的本地存储之间直接传输数据。
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