svn commit: r47921 - head/en_US.ISO8859-1/htdocs/news/status

Tue Dec 29 06:56:14 UTC 2015

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>cem at FreeBSD.org</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>
