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-rw-r--r--Documentation/ABI/testing/sysfs-class-cxl37
1 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/testing/sysfs-class-cxl
index 9ea01068a16c..3680364b4048 100644
--- a/Documentation/ABI/testing/sysfs-class-cxl
+++ b/Documentation/ABI/testing/sysfs-class-cxl
@@ -81,6 +81,43 @@ Description: read only
this this kernel supports.
+AFU configuration records (eg. /sys/class/cxl/afu0.0/cr0):
+
+An AFU may optionally export one or more PCIe like configuration records, known
+as AFU configuration records, which will show up here (if present).
+
+What: /sys/class/cxl/<afu>/cr<config num>/vendor
+Date: February 2015
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Hexadecimal value of the vendor ID found in this AFU
+ configuration record.
+
+What: /sys/class/cxl/<afu>/cr<config num>/device
+Date: February 2015
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Hexadecimal value of the device ID found in this AFU
+ configuration record.
+
+What: /sys/class/cxl/<afu>/cr<config num>/vendor
+Date: February 2015
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Hexadecimal value of the class code found in this AFU
+ configuration record.
+
+What: /sys/class/cxl/<afu>/cr<config num>/config
+Date: February 2015
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ This binary file provides raw access to the AFU configuration
+ record. The format is expected to match the either the standard
+ or extended configuration space defined by the PCIe
+ specification.
+
+
+
Master contexts (eg. /sys/class/cxl/afu0.0m)
What: /sys/class/cxl/<afu>m/mmio_size