cxl: Export AFU error buffer via sysfs
Export the "AFU Error Buffer" via sysfs attribute (afu_err_buf). AFU
error buffer is used by the AFU to report application specific
errors. The contents of this buffer are AFU specific and are intended to
be interpreted by the application interacting with the afu.
Suggested-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/testing/sysfs-class-cxl
index d46bba8..45e9ce3 100644
--- a/Documentation/ABI/testing/sysfs-class-cxl
+++ b/Documentation/ABI/testing/sysfs-class-cxl
@@ -6,6 +6,17 @@
Slave contexts (eg. /sys/class/cxl/afu0.0s):
+What: /sys/class/cxl/<afu>/afu_err_buf
+Date: September 2014
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ AFU Error Buffer contents. The contents of this file are
+ application specific and depends on the AFU being used.
+ Applications interacting with the AFU can use this attribute
+ to know about the current error condition and take appropriate
+ action like logging the event etc.
+
+
What: /sys/class/cxl/<afu>/irqs_max
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org