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Date: Thu, 01 May 1997 16:26:17 -0700
From: Julian Elischer <julian@whistle.com>
Organization: Whistle Communications
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To: Mark Tinguely <tinguely@plains.nodak.edu>
CC: freebsd-atm@FreeBSD.ORG, freebsd-hackers@FreeBSD.ORG
Subject: Re: custom free for external mbuf
References: <199705012208.RAA03104@plains.nodak.edu>
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Mark Tinguely wrote:
> 
> back in October, I said that I wanted to add a permanent association
> between an external mbuf and the external buffer. I call this M_PERM.
> below is a context diff from 2.2.1-RELEASE. I have a card that holds
> hundreds of mbufs until the ATM card gets data, then they will pass
> through some networks stack and when released they get requeued to
> the ATM card. I want to lower the cost of making/breaking the mbuf
> to external connection, and besides since I hold so many mbufs in the
> ATM queue, I do not want to have other devices fighting the card for
> resources.
> 
> 
[... chop ...]
you should also talk with Matt Thomas (Mr. DEC chips)
as he has some changes and such he'd like to see in there too.

julian