From owner-svn-doc-all@FreeBSD.ORG Tue Apr 14 21:13:43 2015 Return-Path: Delivered-To: svn-doc-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id F1E107CA; Tue, 14 Apr 2015 21:13:42 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::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 C42BF1C2; Tue, 14 Apr 2015 21:13:42 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t3ELDg9S008178; Tue, 14 Apr 2015 21:13:42 GMT (envelope-from bjk@FreeBSD.org) Received: (from bjk@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t3ELDg1d008177; Tue, 14 Apr 2015 21:13:42 GMT (envelope-from bjk@FreeBSD.org) Message-Id: <201504142113.t3ELDg1d008177@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: bjk set sender to bjk@FreeBSD.org using -f From: Benjamin Kaduk Date: Tue, 14 Apr 2015 21:13:42 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r46539 - 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, 14 Apr 2015 21:13:43 -0000 Author: bjk Date: Tue Apr 14 21:13:41 2015 New Revision: 46539 URL: https://svnweb.freebsd.org/changeset/doc/46539 Log: Add PCIe hot-plug report Approved by: hrs (mentor, implicit) Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2015-01-2015-03.xml Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2015-01-2015-03.xml ============================================================================== --- head/en_US.ISO8859-1/htdocs/news/status/report-2015-01-2015-03.xml Tue Apr 14 21:06:08 2015 (r46538) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2015-01-2015-03.xml Tue Apr 14 21:13:41 2015 (r46539) @@ -905,4 +905,64 @@ WITHOUT_FORTH=y + + Adding PCIe Hot-plug Support + + + + + John-Mark + Gurney + + jmg@FreeBSD.org + + + + + PCIe Hot-plug Perforce Branch + + + +

PCI Express (PCIe) hot-plug is used on both laptops and + servers to allow peripheral devices to be added or removed + while the system is running. Laptops commonly include + hot-pluggable PCIe as either an ExpressCard slot or + a Thunderbolt interface. ExpressCard has built-in USB support + that is already supported by &os;, but ExpressCard PCIe + devices like Gigabit Ethernet adapters and eSATA cards are + only supported when they are present at boot, and removal may + cause &os; to crash.

+ +

The goal of this project is to allow these devices to + be inserted and removed while &os; is running. The work + will provide the basic infrastructure to support adding and + removing devices, though it is expected that additional work + will be needed to update individual drivers to support + hot-plug.

+ +

Current testing is focused on getting a simple UART + device functional. Basic hot swap is functional.

+ + + The &os; Foundation + + + +

Get suspend/resume functional by saving/restoring the necessary + registers.

+ + + +

Make sure that upon suspend, devices are removed so that + if they are replaced while the machine is suspended, the + new devices will be detected.

+ + + +

Improve how state transitions are handled, possibly by + using a proper state machine.

+ + + +