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Date:      Wed, 13 Sep 2000 23:34:37 -0400 (EDT)
From:      Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
To:        Bosko Milekic <bmilekic@dsuper.net>
Cc:        Garrett Wollman <wollman@khavrinen.lcs.mit.edu>, freebsd-net@FreeBSD.ORG
Subject:   Re: Clusters larger than PAGE_SIZE and contigmalloc()
Message-ID:  <200009140334.XAA05176@khavrinen.lcs.mit.edu>
In-Reply-To: <Pine.BSF.4.21.0009132234580.397-100000@jehovah.technokratis.com>
References:  <200009140222.WAA04696@khavrinen.lcs.mit.edu> <Pine.BSF.4.21.0009132234580.397-100000@jehovah.technokratis.com>

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<<On Wed, 13 Sep 2000 23:03:02 -0400 (EDT), Bosko Milekic <bmilekic@dsuper.net> said:

>I wouldn't actually push for allocating mbufs themselves to that
>layer, simply because this isn't the only place we'd need to allocate
>mbufs from - but I don't think that's what you meant by the above anyway.

No, that's precisely what I meant.  Only the network interface driver
can tell what the precise requirements are for its buffers.  (Remember
the Amiga with its ``chip'' and ``fast'' memory?)  Furthermore,
anything which isn't either a packet about to be (re-)transmitted or a
packet just received doesn't belong in an mbuf.

-GAWollman

--
Garrett A. Wollman   | O Siem / We are all family / O Siem / We're all the same
wollman@lcs.mit.edu  | O Siem / The fires of freedom 
Opinions not those of| Dance in the burning flame
MIT, LCS, CRS, or NSA|                     - Susan Aglukark and Chad Irschick


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