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1729808c54
Add emulation to support Set Feature mailbox command to cxl_test. The only feature supported is the device patrol scrub feature. The set feature allows activation of patrol scrub for the cxl_test emulated device. The command does not support partial data transfer even though the spec allows it. This restriction is to reduce complexity of the emulation given the patrol scrub feature is very minimal. Link: https://patch.msgid.link/r/20250307205648.1021626-8-dave.jiang@intel.com Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Li Ming <ming.li@zohomail.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>