From owner-svn-doc-head@freebsd.org Tue Dec 29 07:01:45 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 8D6D4A55E92; Tue, 29 Dec 2015 07:01:45 +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 437CA11C3; Tue, 29 Dec 2015 07:01:45 +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 tBT71iEq020547; Tue, 29 Dec 2015 07:01:44 GMT (envelope-from bjk@FreeBSD.org) Received: (from bjk@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id tBT71iVi020524; Tue, 29 Dec 2015 07:01:44 GMT (envelope-from bjk@FreeBSD.org) Message-Id: <201512290701.tBT71iVi020524@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 07:01:44 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r47922 - 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, 29 Dec 2015 07:01:45 -0000 Author: bjk Date: Tue Dec 29 07:01:44 2015 New Revision: 47922 URL: https://svnweb.freebsd.org/changeset/doc/47922 Log: Add report on NTB driver 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 06:56:13 2015 (r47921) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml Tue Dec 29 07:01:44 2015 (r47922) @@ -253,4 +253,52 @@ + + + ntb_hw(4)/if_ntb(4) driver synced up to Linux + + + + + Conrad + Meyer + + cem@FreeBSD.org + + + + + Jon Mason's NTB wiki + Intel NTB whitepaper + + + +

ntb_hw(4) is now up-to-date with the Linux NTB driver as + of the work-in-progress 4.4 kernel (and actually, contains some + fixes that haven't landed in the mainline Linux tree yet but will + land in 4.5). Only Back-to-back ("B2B") configurations + are supported at this time. Going forward, newer hardware may + only support the B2B configuration.

+ +

if_ntb(4) is mostly up-to-date with the Linux NTB netdevice + driver. Notably absent is support for changing the MTU at + runtime.

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

Improving if_ntb(4) to avoid using the entire Base + Address Register (BAR) when very large BAR sizes are configured + (e.g., 512 GB).

+ + + +

Improving pmap_mapdev(9) to somehow allocate only + superpage mappings for large BARs, on platforms that support + superpages. (NTB BARs can be as large as 512 GB.)

+ + +