svn commit: r47921 - 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 06:56:13 2015
New Revision: 47921
URL: https://svnweb.freebsd.org/changeset/doc/47921
Log:
Add report on ioat(4) 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 06:49:42 2015 (r47920)
+++ head/en_US.ISO8859-1/htdocs/news/status/report-2015-10-2015-12.xml Tue Dec 29 06:56:13 2015 (r47921)
@@ -212,4 +212,45 @@
<sponsor>EMC / Isilon Storage Division</sponsor>
</project>
+
+ <project cat='kern'>
+ <title>ioat(4) driver enhancements</title>
+
+ <contact>
+ <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 on I/OAT</url>
+ <url href="https://www.FreeBSD.org/news/status/report-2015-07-2015-09.html#ioat%284%29-Driver-Import">Last quarter's ioat(4) report</url>
+ </links>
+
+ <body>
+ <p> I/OAT DMA engines are bulk memory operation offload
+ engines built into some Intel Server/Storage platform
+ CPUs.</p>
+
+ <p>This quarter, several enhancements were made to the driver.
+ The driver now avoids memory allocation in locked paths, which
+ should avoid deadlocking in memory pressure scenarios. Support
+ for Broadwell-EP devices has been added. The
+ "blockfill" operation and a non-contiguous 8 KB copy
+ operation have been added to the API. The driver can recover from
+ various programming errors by resetting the hardware.</p>
+ </body>
+
+ <sponsor>EMC / Isilon Storage Division</sponsor>
+
+ <help>
+ <task>
+ <p>XOR and other advanced ("RAID") operation support.</p>
+ </task>
+ </help>
+ </project>
</report>
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