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    SubjectRe: Network inteface w/ DMA
    > can send/receive packets via ISA DMA. Is there any way of telling kernel
    > to pass a DMA-able memory only to the dev->hard_start_xmit()

    No you need to use bounce buffers. Theres an example in the z85230 driver
    on - thats a sync card using bounce
    buffers when needed

    > (The rx side is easy because the skb is allocated in the device's
    > own interrupt routine and I can use alloc_skb(..., ...|GFP_DMA) here).

    Be aware that all the atomic memory pools may not contain any ISA DMA memory
    and that may be a stable state. ie dont do it , or if you do have
    a bounce buffer fallback

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      Last update: 2005-03-22 13:44    [W:0.024 / U:0.100 seconds]
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