svn commit: r47544 - 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 Oct 13 06:28:35 2015
New Revision: 47544
URL: https://svnweb.freebsd.org/changeset/doc/47544
Log:
Add ioat(4) report from cem.
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 Mon Oct 12 12:05:18 2015 (r47543)
+++ head/en_US.ISO8859-1/htdocs/news/status/report-2015-07-2015-09.xml Tue Oct 13 06:28:35 2015 (r47544)
@@ -83,4 +83,65 @@
<description>Miscellaneous</description>
</category>
+ <project cat='kern'>
+ <title>ioat(4) driver import</title>
+
+ <contact>
+ <person>
+ <name>
+ <given>Jim</given>
+ <common>Harris</common>
+ </name>
+ <email>[email protected]</email>
+ </person>
+
+ <person>
+ <name>
+ <given>Conrad</given>
+ <common>Meyer</common>
+ </name>
+ <email>[email protected]</email>
+ </person>
+ </contact>
+
+ <links>
+ <url href="https://en.wikipedia.org/wiki/I/O_Acceleration_Technology">Wikipedia
+ article on IOAT</url>
+ <url href="https://svnweb.FreeBSD.org/base?view=revision&revision=r287117">Commit
+ importing ioat(4)</url>
+ </links>
+
+ <body>
+ <p>A new driver, ioat(4), was added to the tree. ioat(4)
+ supports Intel's I/O Acceleration Technology devices which are found
+ on some Intel server systems.</p>
+
+ <p>These devices are DMA offload engines, which can accelerate
+ some I/O-heavy applications by offloading memory copies from the main
+ CPU to the I/OAT unit. This acceleration is not transparent;
+ applications must be adapted to take advantage of the hardware.</p>
+
+ <p>Some I/OAT models support more advanced copying modes, like
+ XOR; these modes are not yet supported in the ioat(4) driver.</p>
+ </body>
+
+ <sponsor>
+ Intel Corporation
+ </sponsor>
+ <sponsor>
+ EMC / Isilon Storage Division
+ </sponsor>
+
+ <help>
+ <task>
+ <p>Further testing, especially on a range of device models other
+ than BDXDE (looking for volunteers here).</p>
+ </task>
+
+ <task>
+ <p>Support for the more advanced copy modes.</p>
+ </task>
+ </help>
+ </project>
+
</report>
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