Date: Mon, 25 Mar 2002 14:08:06 -0800 From: Lars Eggert <larse@ISI.EDU> To: Lars Eggert <larse@ISI.EDU> Cc: Matthew Luckie <mjl@nlanr.net>, freebsd-net@freebsd.org Subject: Re: ip_output and ENOBUFS Message-ID: <3C9F9FC6.2070609@isi.edu> References: <Pine.BSF.4.21.0203251356350.88720-100000@mave.nlanr.net> <3C9F9F5B.4090409@isi.edu>
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Lars Eggert wrote:
> Matthew Luckie wrote:
>
>>>> Is there a mechanism to tell when ip_output should be called again?
>>>> Ideally, I would block until such time as i could send it via ip_output
>>>
>>>
>>> You probably get that because the outbound interface queue gets full,
>>> so you want to block your caller until space becomes available there.
>>> There currently is no such mechanism (AFAIK, and talking about
>>> -STABLE here), but it's not too much work to add.
>>
>>
>> if you could suggest a few modifications that would be required, i'd like
>> to pursue this further.
>
>
> Look at tsleep/wakeup on ifnet of if_snd.
^^
or
Sorry, big fingers.
--
Lars Eggert <larse@isi.edu> Information Sciences Institute
http://www.isi.edu/larse/ University of Southern California
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