Date: Tue, 04 Jun 2002 09:22:13 -0700 From: Lars Eggert <larse@ISI.EDU> To: Luigi Rizzo <rizzo@icir.org> Cc: net@FreeBSD.ORG Subject: Re: Dummynet WFQ Message-ID: <3CFCE935.8090603@isi.edu> References: <3CFB9BC4.9080506@isi.edu> <20020603122913.A78688@iguana.icir.org> <3CFCE101.3040108@isi.edu> <3CFCE1CF.2070001@isi.edu> <20020604090719.A88701@iguana.icir.org>
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Luigi Rizzo wrote:
> BTW if you use polling, you have to be careful in the place where you
> put the call to if_tx_rdy() to make sure that it catches the tx queue
> becoming empty only once and not at every polling cycle.
How about at the very end of sis_intr(), as a new "else" branch of the
queue length check, like this:
if (ifp->if_snd.ifq_head != NULL)
sis_start(ifp);
+
else
+
if_tx_ready(ifp);
That doesn't seem to be in the codepath that gets executed on each poll,
right?
> p.s. the soekris boxes are becoming popular, aren't they!
They are amazing, I'm really glad the folks on freebsd-small have
pointed us at them. Only downside is that you go blind if you look at
the case for too long :-)
Lars
--
Lars Eggert <larse@isi.edu> USC Information Sciences Institute
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