From owner-freebsd-net@FreeBSD.ORG Wed May 21 21:45:22 2008 Return-Path: Delivered-To: net@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 140E71065674; Wed, 21 May 2008 21:45:22 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from cyrus.watson.org (cyrus.watson.org [209.31.154.42]) by mx1.freebsd.org (Postfix) with ESMTP id C7CA68FC13; Wed, 21 May 2008 21:45:21 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from fledge.watson.org (fledge.watson.org [209.31.154.41]) by cyrus.watson.org (Postfix) with ESMTP id 985F946B17; Wed, 21 May 2008 17:45:20 -0400 (EDT) Date: Wed, 21 May 2008 22:45:20 +0100 (BST) From: Robert Watson X-X-Sender: robert@fledge.watson.org To: arch@FreeBSD.org In-Reply-To: <20080310122338.T29929@fledge.watson.org> Message-ID: <20080521224350.T63482@fledge.watson.org> References: <20080310122338.T29929@fledge.watson.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: net@FreeBSD.org Subject: Re: netatm removal warning X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2008 21:45:22 -0000 On Mon, 10 Mar 2008, Robert Watson wrote: > This is another of those boring e-mails about kernel subsystems that still > require Giant. Sorry about that! > > As previously published, netatm is a non-MPSAFE protocol stack largely > superseded by our two other ATM stacks, netnatm and the netgraph/atm (both > MPSAFE). netatm is currently non-functional and uncompileable because it > depends on the Giant compatibility shims for the protocol stack, which were > removed in FreeBSD 7.0. We left the code in place in case to make it easier > for any interested third parties to distribute patches against it (in > particular, patches to make it MPSAFE). > > The current plan is that we will remove the netatm code from HEAD and > RELENG_7 before FreeBSD 7.1. A specific schedue for 7.1 hasn't been > published yet, but in order to give plenty of warning, here's the proposed > netatm removal schedule: > > 10 March 2008 E-mail warning to arch@/net@ > 10 April 2008 E-mail warning to arch@/net@ > 10 May 2008 Removal of netatm from HEAD > 20 May 2008 Removal of netatm from RELENG_7 > > Obviously, netatm will remain in the revision control history should anyone > wish to ressurect it after that date. However, I suspect that those > interested in ATM on FreeBSD have long since been using Harti's netgraph ATM > framework. Somehow the dates slipped pasted more quickly than I had hoped -- this is the HEADS UP that, on a slightly delayed schedule, I will be trimming netatm from the src tree for HEAD, and then a week or two later, from RELENG_7. Assuming all goes well, this should result in no functional change at all. Robert N M Watson Computer Laboratory University of Cambridge