From owner-freebsd-net Wed Mar 27 10:40:15 2002 Delivered-To: freebsd-net@freebsd.org Received: from rwcrmhc51.attbi.com (rwcrmhc51.attbi.com [204.127.198.38]) by hub.freebsd.org (Postfix) with ESMTP id 8DC9E37B416 for ; Wed, 27 Mar 2002 10:40:10 -0800 (PST) Received: from InterJet.elischer.org ([12.232.206.8]) by rwcrmhc51.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with ESMTP id <20020327184010.FGOK2626.rwcrmhc51.attbi.com@InterJet.elischer.org>; Wed, 27 Mar 2002 18:40:10 +0000 Received: from localhost (localhost.elischer.org [127.0.0.1]) by InterJet.elischer.org (8.9.1a/8.9.1) with ESMTP id KAA47804; Wed, 27 Mar 2002 10:38:04 -0800 (PST) Date: Wed, 27 Mar 2002 10:38:04 -0800 (PST) From: Julian Elischer To: Luigi Rizzo Cc: Archie Cobbs , freebsd-net@FreeBSD.ORG Subject: Re: ip_output and ENOBUFS In-Reply-To: <20020327101358.B22365@iguana.icir.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Wed, 27 Mar 2002, Luigi Rizzo wrote: > On Wed, Mar 27, 2002 at 09:53:00AM -0800, Archie Cobbs wrote: > ... > > > managed and can be extended to point to additional ifnet state that > > > does not fit in the immutable one... > > > > Why is it important to avoid changing 'struct ifnet' ? > > backward compatibility with binary-only drivers ... > Not that i care too much (in the end it is for the benefit of > a limited set of people which could as well not upgrade, vs. > preventing useful functionality to be added in a safe way), > but some people do and i can see their point. > On the other hand, this also means we can never progress if not > on major releases or unless changes slip in unnoticed... It is possible to hang extra info off the ifnet structure if one is careful. just not IN it.. > > cheers > luigi > > > -Archie > > > > __________________________________________________________________________ > > Archie Cobbs * Packet Design * http://www.packetdesign.com > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-net" in the body of the message > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message