Quoting todd-lkml@osogrande.com:
> dave, all,
>
> not sure i understand what you're proposing, but while we're at it,
> why not also make the api for apps to allocate a buffer in userland
> that (for nics that support it) the nic can dma directly into? it
I believe thats exactly what David was referring to - reverse
direction sendfile() so to speak..
> seems likely notification that the buffer was used would have to
> travel through the kernel, but it would be nice to save the
> interrupts altogether.
However, I dont think what youre saving are interrupts as
much as the extra copy, but I could be wrong..
thanks,
Nivedita
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This archive was generated by hypermail 2b29 : Sun Sep 15 2002 - 22:00:35 EST