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08c6d46621
Emulate the UFS HID extended feature. Host interacts via five attributes (IDN 0x35-0x39): bDefragOperation trigger: Disable / Analysis / Defrag dHIDAvailableSize fragmented 4KB units (published by analysis) dHIDSize host-requested defrag target (4KB units) bHIDProgressRatio 0-100%; reading 100 resets HID bHIDState current state; terminal-state read resets HID Successful user-data SCSI WRITE commands increment an internal fragment counter; HID analysis publishes the counter through dHIDAvailableSize. Defrag operates on min(dHIDSize, dHIDAvailableSize), so a small dHIDSize yields a partial defrag. bDefragOperation auto-clears on terminal state. The state machine advances from ufs_process_idle(); transitions occur only while the device is idle. Signed-off-by: Keoseong Park <keosung.park@samsung.com> Reviewed-by: Jeuk Kim <jeuk20.kim@samsung.com> Signed-off-by: Jeuk Kim <jeuk20.kim@samsung.com>