diff options
| author | Ben Widawsky <bwidawsk@kernel.org> | 2022-04-25 11:36:48 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2022-07-25 12:18:06 -0700 |
| commit | 80d10a6cee05029cae9d9d6e8ddb799ea6d01e0c (patch) | |
| tree | 05d8108d59eda1975c1cdf4bff267261ad36ca82 /Documentation/ABI | |
| parent | dd5ba0ebbdc414f4dda4dc4ec076f46fb6f26ffd (diff) | |
cxl/region: Add interleave geometry attributes
Add ABI to allow the number of devices that comprise a region to be
set as well as the interleave granularity for the region.
Signed-off-by: Ben Widawsky <bwidawsk@kernel.org>
[djbw: reword changelog]
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20220624041950.559155-11-dan.j.williams@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-cxl | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl index f4515a1c74fe..df347174fb37 100644 --- a/Documentation/ABI/testing/sysfs-bus-cxl +++ b/Documentation/ABI/testing/sysfs-bus-cxl @@ -303,3 +303,24 @@ Description: (RW) Write a unique identifier for the region. This field must be set for persistent regions and it must not conflict with the UUID of another region. + + +What: /sys/bus/cxl/devices/regionZ/interleave_granularity +Date: May, 2022 +KernelVersion: v5.20 +Contact: linux-cxl@vger.kernel.org +Description: + (RW) Set the number of consecutive bytes each device in the + interleave set will claim. The possible interleave granularity + values are determined by the CXL spec and the participating + devices. + + +What: /sys/bus/cxl/devices/regionZ/interleave_ways +Date: May, 2022 +KernelVersion: v5.20 +Contact: linux-cxl@vger.kernel.org +Description: + (RW) Configures the number of devices participating in the + region is set by writing this value. Each device will provide + 1/interleave_ways of storage for the region. |