Hi Vishal, With the QoS class series merged to the v6.8 kernel, can you please review and apply this series to ndctl if acceptable?
v9: - Rename cxl_region_qos_class_matches() to cxl_region_qos_class_mismatch() (Vishal) - Rename ->qos_enforce to ->enforce_qos (Vishal) - Rename json output qos_class_mismatched to qos_class_mismatch (Vishal) v8: - Move qos_class comparison to libcxl. (Vishal) - Move check to validate_decoder(). (Vishal) - Update test to pick decoder that will always work. (Vishal) - Fix script style. (Vishal) v7: - Removed qos restriction flag entirely (Alison) - Added check for invalid qos_class when doing json output - Change -q to -Q (Vishal) - Add qos_class_mismatched to region output for cxl list (Vishal) - Add -Q test in cxl-qos-class.sh test (Vishal) - Change verify behavior to only do qos matching with -Q (Vishal/Dan) v6: - Check return value of create_region_validate_qos_class() (Wonjae) v5: - split out test from cxl-topology.sh (Vishal) v4: - Update against changes in kernel from multi to single qos_class entry - Add test in cxl-topology.sh (Dan) - See individual patch log for details v3: - Rebase against latest ndctl/pending branch. The series adds support for the kernel enabling of QoS class in the v6.8 kernel. The kernel exports a qos_class token for the root decoders (CFMWS) and as well as for the CXL memory devices. The qos_class exported for a device is calculated by the driver during device probe. Currently a qos_class is exported for the volatile partition (ram) and another for the persistent partition (pmem). In the future qos_class will be exported for DCD regions. Display of qos_class is through the CXL CLI list command with -vvv for extra verbose. A qos_class check as also been added for region creation. A warning is emitted when the qos_class of a memory range of a CXL memory device being included in the CXL region assembly does not match the qos_class of the root decoder. Options are available to suppress the warning or to fail the region creation. This enabling provides a guidance on flagging memory ranges being used is not optimal for performance for the CXL region to be formed.
