NVIDIA Tesla L20 /sys/bus/pci/devices/{id}/v1rtfnl/mdev_supported_types Can’t Found

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1

Hello bros, Please help me,
In Kylin server 2503 OS, GPU = L20. version=570.148

nvidia-smi

7c052065e1de96ceb8f644302c12038f
7c052065e1de96ceb8f644302c12038f1920×1080 236 KB

lsmod | grep nvidia

48f31e5bef2311f0d5283e338b0bebe7
48f31e5bef2311f0d5283e338b0bebe71920×1080 218 KB

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lspci | grep NVIDIA

a1:00.0 3D controller: NVIDIA Corporation Device 26ba (rev a1)

ls /sys/bus/pci/devices/0000:05:00.0/virtfn0/mdev supported types/

ls: cannot access ‘/sys/bus/pci/devices/0000:05:00.0/virtfno/mdev supported types/’: No such file or directory