From owner-svn-doc-all@freebsd.org Tue Dec 29 06:56:14 2015 Return-Path: Delivered-To: svn-doc-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 BD7BEA55C6C; Tue, 29 Dec 2015 06:56:14 +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 72AEA1F16; Tue, 29 Dec 2015 06:56:14 +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 tBT6uDrc018172; Tue, 29 Dec 2015 06:56:13 GMT (envelope-from bjk@FreeBSD.org) Received: (from bjk@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id tBT6uDUQ018171; Tue, 29 Dec 2015 06:56:13 GMT (envelope-from bjk@FreeBSD.org) Message-Id: <201512290656.tBT6uDUQ018171@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: bjk set sender to bjk@FreeBSD.org using -f From: Benjamin Kaduk Date: Tue, 29 Dec 2015 06:56:13 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r47921 - 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-all@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "SVN commit messages for the entire doc trees \(except for " user" , " projects" , and " translations" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Dec 2015 06:56:14 -0000 Author: bjk Date: Tue Dec 29 06:56:13 2015 New Revision: 47921 URL: https://svnweb.freebsd.org/changeset/doc/47921 Log: Add report on ioat(4) improvements from cem Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml ============================================================================== --- head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml Tue Dec 29 06:49:42 2015 (r47920) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml Tue Dec 29 06:56:13 2015 (r47921) @@ -212,4 +212,45 @@ EMC / Isilon Storage Division + + + ioat(4) driver enhancements + + + + + Conrad + Meyer + + cem@FreeBSD.org + + + + + Wikipedia on I/OAT + Last quarter's ioat(4) report + + + +

I/OAT DMA engines are bulk memory operation offload + engines built into some Intel Server/Storage platform + CPUs.

+ +

This quarter, several enhancements were made to the driver. + The driver now avoids memory allocation in locked paths, which + should avoid deadlocking in memory pressure scenarios. Support + for Broadwell-EP devices has been added. The + "blockfill" operation and a non-contiguous 8 KB copy + operation have been added to the API. The driver can recover from + various programming errors by resetting the hardware.

+ + + EMC / Isilon Storage Division + + + +

XOR and other advanced ("RAID") operation support.

+ + +