[Click] user level todevice and infinitesource
Eddie Kohler
kohler at cs.ucla.edu
Tue Oct 19 12:02:33 EDT 2004
John Bicket wrote:
> I'm trying to hook up a config like this:
>
> InfiniteSource() -> ... -> ToDevice()
>
>
> Is there a way for todevice to not try to send a packet when there are
> no buffers for it? Whenever I try this, I just get tons of
>
> ToDevice(ath0) send: No buffer space available
>
> fron stderr, since the kernel device queue is getting full.
>
> --john
Hi John,
I've done a little bit of looking at the relevant kernel code, and I think it
might be possible to select() a packet socket (suhc as that used by ToDevice)
for writing.
Eddie
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