cxl: Update CXL ABI documentation
This fixes two typos and explains where shared attributes are stored.
Signed-off-by: Philippe Bergheaud <felix@linux.vnet.ibm.com>
Acked-by: Michael Neuling <mikey@neuling.org>
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 554405e..2ab97527 100644
--- a/Documentation/ABI/testing/sysfs-class-cxl
+++ b/Documentation/ABI/testing/sysfs-class-cxl
@@ -1,3 +1,9 @@
+Note: Attributes that are shared between devices are stored in the directory
+pointed to by the symlink device/.
+Example: The real path of the attribute /sys/class/cxl/afu0.0s/irqs_max is
+/sys/class/cxl/afu0.0s/device/irqs_max, i.e. /sys/class/cxl/afu0.0/irqs_max.
+
+
Slave contexts (eg. /sys/class/cxl/afu0.0s):
What: /sys/class/cxl/<afu>/irqs_max
@@ -67,7 +73,7 @@
Description: read only
Decimal value of the current version of the kernel/user API.
-What: /sys/class/cxl/<afu>/api_version_com
+What: /sys/class/cxl/<afu>/api_version_compatible
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
@@ -75,7 +81,6 @@
this this kernel supports.
-
Master contexts (eg. /sys/class/cxl/afu0.0m)
What: /sys/class/cxl/<afu>m/mmio_size
@@ -106,7 +111,7 @@
Description: read only
Identifies the CAIA Version the card implements.
-What: /sys/class/cxl/<card>/psl_version
+What: /sys/class/cxl/<card>/psl_revision
Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only