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-rw-r--r--Documentation/ABI/testing/sysfs-bus-cxl34
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl
index e76c3600607f..fff2581b8033 100644
--- a/Documentation/ABI/testing/sysfs-bus-cxl
+++ b/Documentation/ABI/testing/sysfs-bus-cxl
@@ -28,6 +28,23 @@ Description:
Payload in the CXL-2.0 specification.
+What: /sys/bus/cxl/devices/memX/ram/qos_class
+Date: May, 2023
+KernelVersion: v6.8
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) For CXL host platforms that support "QoS Telemmetry"
+ this attribute conveys a comma delimited list of platform
+ specific cookies that identifies a QoS performance class
+ for the volatile partition of the CXL mem device. These
+ class-ids can be compared against a similar "qos_class"
+ published for a root decoder. While it is not required
+ that the endpoints map their local memory-class to a
+ matching platform class, mismatches are not recommended
+ and there are platform specific performance related
+ side-effects that may result. First class-id is displayed.
+
+
What: /sys/bus/cxl/devices/memX/pmem/size
Date: December, 2020
KernelVersion: v5.12
@@ -38,6 +55,23 @@ Description:
Payload in the CXL-2.0 specification.
+What: /sys/bus/cxl/devices/memX/pmem/qos_class
+Date: May, 2023
+KernelVersion: v6.8
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) For CXL host platforms that support "QoS Telemmetry"
+ this attribute conveys a comma delimited list of platform
+ specific cookies that identifies a QoS performance class
+ for the persistent partition of the CXL mem device. These
+ class-ids can be compared against a similar "qos_class"
+ published for a root decoder. While it is not required
+ that the endpoints map their local memory-class to a
+ matching platform class, mismatches are not recommended
+ and there are platform specific performance related
+ side-effects that may result. First class-id is displayed.
+
+
What: /sys/bus/cxl/devices/memX/serial
Date: January, 2022
KernelVersion: v5.18