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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:22 +0000
commitb20732900e4636a467c0183a47f7396700f5f743 (patch)
tree42f079ff82e701ebcb76829974b4caca3e5b6798 /Documentation/ABI/testing/sysfs-bus-cxl
parentAdding upstream version 6.8.12. (diff)
downloadlinux-b20732900e4636a467c0183a47f7396700f5f743.tar.xz
linux-b20732900e4636a467c0183a47f7396700f5f743.zip
Adding upstream version 6.9.7.upstream/6.9.7
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-cxl')
-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 fff2581b80..3f5627a121 100644
--- a/Documentation/ABI/testing/sysfs-bus-cxl
+++ b/Documentation/ABI/testing/sysfs-bus-cxl
@@ -552,3 +552,37 @@ Description:
attribute is only visible for devices supporting the
capability. The retrieved errors are logged as kernel
events when cxl_poison event tracing is enabled.
+
+
+What: /sys/bus/cxl/devices/regionZ/accessY/read_bandwidth
+ /sys/bus/cxl/devices/regionZ/accessY/write_banwidth
+Date: Jan, 2024
+KernelVersion: v6.9
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) The aggregated read or write bandwidth of the region. The
+ number is the accumulated read or write bandwidth of all CXL memory
+ devices that contributes to the region in MB/s. It is
+ identical data that should appear in
+ /sys/devices/system/node/nodeX/accessY/initiators/read_bandwidth or
+ /sys/devices/system/node/nodeX/accessY/initiators/write_bandwidth.
+ See Documentation/ABI/stable/sysfs-devices-node. access0 provides
+ the number to the closest initiator and access1 provides the
+ number to the closest CPU.
+
+
+What: /sys/bus/cxl/devices/regionZ/accessY/read_latency
+ /sys/bus/cxl/devices/regionZ/accessY/write_latency
+Date: Jan, 2024
+KernelVersion: v6.9
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) The read or write latency of the region. The number is
+ the worst read or write latency of all CXL memory devices that
+ contributes to the region in nanoseconds. It is identical data
+ that should appear in
+ /sys/devices/system/node/nodeX/accessY/initiators/read_latency or
+ /sys/devices/system/node/nodeX/accessY/initiators/write_latency.
+ See Documentation/ABI/stable/sysfs-devices-node. access0 provides
+ the number to the closest initiator and access1 provides the
+ number to the closest CPU.