svn commit: r47922 - 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: 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 @@
</task>
</help>
</project>
+
+ <project cat='kern'>
+ <title>ntb_hw(4)/if_ntb(4) driver synced up to Linux</title>
+
+ <contact>
+ <person>
+ <name>
+ <given>Conrad</given>
+ <common>Meyer</common>
+ </name>
+ <email>[email protected]</email>
+ </person>
+ </contact>
+
+ <links>
+ <url href="https://github.com/jonmason/ntb/wiki">Jon Mason's NTB wiki</url>
+ <url href="https://www-ssl.intel.com/content/dam/www/public/us/en/documents/white-papers/xeon-c5500-c3500-non-transparent-bridge-paper.pdf">Intel NTB whitepaper</url>
+ </links>
+
+ <body>
+ <p>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.</p>
+
+ <p>if_ntb(4) is mostly up-to-date with the Linux NTB netdevice
+ driver. Notably absent is support for changing the MTU at
+ runtime.</p>
+ </body>
+
+ <sponsor>EMC / Isilon Storage Division</sponsor>
+
+ <help>
+ <task>
+ <p>Improving if_ntb(4) to avoid using the entire Base
+ Address Register (BAR) when very large BAR sizes are configured
+ (e.g., 512 GB).</p>
+ </task>
+
+ <task>
+ <p>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.)</p>
+ </task>
+ </help>
+ </project>
</report>
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