Du_mgr not working for integrated QAT C62x coprocessors [Xeon server]

Device utilization "du_mgr" utility is not working for QAT engines.

I am getting the following error:
**Cmd:**
du_mgr start 1a:00.0

**Output:**
ADF_UIO_PROXY err: du_user_ioctl: Failed to execute ioctl command
ADF_UIO_PROXY err: icp_adf_userDuStart: Failed to start device utilization

**Dmesg log:**
DU Start is not supported by VF driver.

**Kernel version:**
5.4.158

**QAT drivers version:**
4.10.0

**QAT Engine version**
0.5.44

**CPU:**
Vendor ID: GenuineIntel
CPU family: 6
Model: 86
Model name: Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz

=================
There is 2 QAT acceleration device(s) in the system:
qat_dev0 - type: c6xx, inst_id: 0, node_id: 0, bsf: 0000:19:00.0, #accel: 4 #engines: 8 state: up
qat_dev1 - type: c6xx, inst_id: 1, node_id: 0, bsf: 0000:1a:00.0, #accel: 4 #engines: 8 state: up