From owner-svn-doc-head@freebsd.org Tue Oct 13 06:28:36 2015 Return-Path: Delivered-To: svn-doc-head@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 E767FA126F6; Tue, 13 Oct 2015 06:28:36 +0000 (UTC) (envelope-from bjk@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 947411DA4; Tue, 13 Oct 2015 06:28:36 +0000 (UTC) (envelope-from bjk@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id t9D6SZ67001226; Tue, 13 Oct 2015 06:28:35 GMT (envelope-from bjk@FreeBSD.org) Received: (from bjk@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id t9D6SZRc001225; Tue, 13 Oct 2015 06:28:35 GMT (envelope-from bjk@FreeBSD.org) Message-Id: <201510130628.t9D6SZRc001225@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: bjk set sender to bjk@FreeBSD.org using -f From: Benjamin Kaduk Date: Tue, 13 Oct 2015 06:28:35 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r47544 - head/en_US.ISO8859-1/htdocs/news/status X-SVN-Group: doc-head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-doc-head@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: SVN commit messages for the doc tree for head List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 Oct 2015 06:28:37 -0000 Author: bjk Date: Tue Oct 13 06:28:35 2015 New Revision: 47544 URL: https://svnweb.freebsd.org/changeset/doc/47544 Log: Add ioat(4) report from cem. Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2015-07-2015-09.xml Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2015-07-2015-09.xml ============================================================================== --- head/en_US.ISO8859-1/htdocs/news/status/report-2015-07-2015-09.xml Mon Oct 12 12:05:18 2015 (r47543) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2015-07-2015-09.xml Tue Oct 13 06:28:35 2015 (r47544) @@ -83,4 +83,65 @@ Miscellaneous + + ioat(4) driver import + + + + + Jim + Harris + + jimharris@FreeBSD.org + + + + + Conrad + Meyer + + cem@FreeBSD.org + + + + + Wikipedia + article on IOAT + Commit + importing ioat(4) + + + +

A new driver, ioat(4), was added to the tree. ioat(4) + supports Intel's I/O Acceleration Technology devices which are found + on some Intel server systems.

+ +

These devices are DMA offload engines, which can accelerate + some I/O-heavy applications by offloading memory copies from the main + CPU to the I/OAT unit. This acceleration is not transparent; + applications must be adapted to take advantage of the hardware.

+ +

Some I/OAT models support more advanced copying modes, like + XOR; these modes are not yet supported in the ioat(4) driver.

+ + + + Intel Corporation + + + EMC / Isilon Storage Division + + + + +

Further testing, especially on a range of device models other + than BDXDE (looking for volunteers here).

+ + + +

Support for the more advanced copy modes.

+ + + +