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Date:      Tue, 18 Dec 2001 12:58:16 -0600
From:      Jonathan Lemon <jlemon@flugsvamp.com>
To:        Julian Elischer <julian@elischer.org>
Cc:        Jonathan Lemon <jlemon@flugsvamp.com>, Bruce Evans <bde@zeta.org.au>, Luigi Rizzo <rizzo@aciri.org>, arch@FreeBSD.ORG
Subject:   Re: swi_net
Message-ID:  <20011218125816.N377@prism.flugsvamp.com>
In-Reply-To: <Pine.BSF.4.21.0112181017000.36281-100000@InterJet.elischer.org>
References:  <20011218104750.M377@prism.flugsvamp.com> <Pine.BSF.4.21.0112181017000.36281-100000@InterJet.elischer.org>

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On Tue, Dec 18, 2001 at 10:19:23AM -0800, Julian Elischer wrote:
> Netgraph in -current uses netisr routines to run its 
> dequeueing system (different to -stable which uses it as a netisr
> from interrupt scope as per normal).

Thats fine - I'm not removing netisrs completely.  I just wanted
to add the ability to do direct dispatching as well.  This is useful
for non-interrupt driven execution, since the packet would get pushed
through the stack as far as possible.

Also, I wasn't able to remove ngintr() from -stable, since it uses
non-standard queue handling.  There are a few other cases like this
as well; they are still handled in the normal fashion.

One thing to note is that so far, I haven't seen any benefit of using
a direct dispatch over the netisr approach; but then again, it may be
that I'm simply not stressing my system enough.
-- 
Jonathan

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