You have to have some buffers.

你必须有一些缓冲。

Queue DMA GETs for all buffers.

对所有缓冲区的DMA GET进行排队。

Set related memory buffers.

设置相关的内存缓冲区。

The size of the receive buffers.

接收缓存的大小。

Buffers have a limited amount of space.

缓冲区具有有限的空间。