svn commit: r47620 - head/en_US.ISO8859-1/htdocs/news/status
Benjamin Kaduk <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.cvs.doc |
|---|---|
| Message-ID | <[email protected]> |
Author: bjk
Date: Sun Oct 18 21:54:09 2015
New Revision: 47620
URL: https://svnweb.freebsd.org/changeset/doc/47620
Log:
Add PCIe Hot-Plug report from jmg
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 Sun Oct 18 21:35:18 2015 (r47619)
+++ head/en_US.ISO8859-1/htdocs/news/status/report-2015-07-2015-09.xml Sun Oct 18 21:54:09 2015 (r47620)
@@ -3117,4 +3117,73 @@
</help>
</project>
+ <project cat='kern'>
+ <title>Adding PCIe Hot-plug Support</title>
+
+ <contact>
+ <person>
+ <name>
+ <given>John-Mark</given>
+ <common>Gurney</common>
+ </name>
+ <email>[email protected]</email>
+ </person>
+ </contact>
+
+ <links>
+ <url href="http://p4db.FreeBSD.org/depotTreeBrowser.cgi?FSPC=//depot/projects/pciehotplug">PCIe
+ Hot-plug Perforce Branch</url>
+ <url href="https://svnweb.FreeBSD.org/changeset/base/r281874">Commit
+ adding bridge save/restore.</url>
+ <url href="https://github.com/FreeBSDFoundation/freebsd/tree/pciehp">Github
+ branch with patches</url>
+ </links>
+
+ <body>
+ <p>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 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 their removal may cause &os; to crash.</p>
+
+ <p>The goal of this project is to allow these devices to be
+ inserted and removed while &os; is running. This 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.</p>
+
+ <p>Current testing is focused on getting a simple UART device
+ functional. Basic hot swap is currently functional.</p>
+
+ <p>A set of the patches for the work done in this project is
+ now available on github.com.
+ </p>
+ </body>
+
+ <sponsor>
+ The FreeBSD Foundation
+ </sponsor>
+
+ <help>
+ <task>
+ <p>Get suspend/resume functional by save/restoring the necessary
+ registers. This should be addressed by r281874.</p>
+ </task>
+
+ <task>
+ <p>Make sure that upon suspend, devices are removed so that we
+ are not fooled if they are replaced with different devices while
+ the machine is suspended.</p>
+ </task>
+
+ <task>
+ <p>Improve how state transitions are handled, possibly by
+ using a proper state machine.</p>
+ </task>
+ </help>
+ </project>
+
</report>
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