From owner-svn-src-all@freebsd.org Tue Dec 20 20:50:15 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9E9A4C89DD4; Tue, 20 Dec 2016 20:50:15 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from mail.baldwin.cx (bigwig.baldwin.cx [96.47.65.170]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id E5F3B1A48; Tue, 20 Dec 2016 20:50:14 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from ralph.baldwin.cx (c-73-231-226-104.hsd1.ca.comcast.net [73.231.226.104]) by mail.baldwin.cx (Postfix) with ESMTPSA id CF11F10AA28; Tue, 20 Dec 2016 15:50:13 -0500 (EST) From: John Baldwin To: Ruslan Bukin Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r310330 - in head: share/man/man4 sys/conf sys/dev/xdma Date: Tue, 20 Dec 2016 12:50:11 -0800 Message-ID: <1904181.V85ZRTRTAB@ralph.baldwin.cx> User-Agent: KMail/4.14.10 (FreeBSD/11.0-PRERELEASE; KDE/4.14.10; amd64; ; ) In-Reply-To: <201612201802.uBKI27oN091165@repo.freebsd.org> References: <201612201802.uBKI27oN091165@repo.freebsd.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.4.3 (mail.baldwin.cx); Tue, 20 Dec 2016 15:50:13 -0500 (EST) X-Virus-Scanned: clamav-milter 0.99.2 at mail.baldwin.cx X-Virus-Status: Clean X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Dec 2016 20:50:15 -0000 On Tuesday, December 20, 2016 06:02:07 PM Ruslan Bukin wrote: > Author: br > Date: Tue Dec 20 18:02:07 2016 > New Revision: 310330 > URL: https://svnweb.freebsd.org/changeset/base/310330 > > Log: > Add xDMA -- the DMA abstraction layer, initial verison. > > xDMA is a DMA framework designed to abstract the interaction > between device drivers and DMA engines. > > Project wiki: https://wiki.freebsd.org/xdma > > Sponsored by: DARPA, AFRL > Differential Revision: https://reviews.freebsd.org/D8807 It probably would have been a good idea to get some design review of this on arch@ before committing. In particular, I believe from earlier discussions that you want to build a general framework that things like ioat(4) can hook into. arch@ would give you a broader audience for working out the abstractions and interfaces. -- John Baldwin