From owner-svn-src-head@FreeBSD.ORG Tue May 12 18:26:48 2009 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DA6E41065673; Tue, 12 May 2009 18:26:48 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id AC71D8FC1F; Tue, 12 May 2009 18:26:48 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id 51EE946B49; Tue, 12 May 2009 14:26:48 -0400 (EDT) Received: from jhbbsd.hudson-trading.com (unknown [209.249.190.8]) by bigwig.baldwin.cx (Postfix) with ESMTPA id 307A38A025; Tue, 12 May 2009 14:26:47 -0400 (EDT) From: John Baldwin To: Stanislav Sedov Date: Tue, 12 May 2009 12:17:05 -0400 User-Agent: KMail/1.9.7 References: <200905121607.n4CG78wX026915@svn.freebsd.org> In-Reply-To: <200905121607.n4CG78wX026915@svn.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200905121217.06048.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Tue, 12 May 2009 14:26:47 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.95 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=4.2 tests=AWL,BAYES_00,RDNS_NONE autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r192018 - head/sys/arm/at91 X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 May 2009 18:26:50 -0000 On Tuesday 12 May 2009 12:07:08 pm Stanislav Sedov wrote: > Author: stas > Date: Tue May 12 16:07:08 2009 > New Revision: 192018 > URL: http://svn.freebsd.org/changeset/base/192018 > > Log: > - Implement detach path. > - Release memory and DMA resources on stop. > - Unload the associated DMA maps after transmit is complete. Most NIC drivers that I am familiar with do not destroy DMA resources (tags and maps) during stop() and then create them during if_init(). Instead, they create those during attach() and detach(). They do tend to populate the RX ring with buffers during if_init() and free all of the mbus during stop() though. -- John Baldwin