Checking the GenWQE device driver setup

7.1 LPAR mode z/VM guest

Perform these tasks if GenWQE does not work as expected.

Procedure

Confirm that the device driver is loaded.
```
# lsmod | grep genwqe
genwqe_card 88997 0
crc_itu_t 1910 1 genwqe_card
```
If the genwqe_card module is not listed in the command output, load it with modprobe.
Hint: Use the following command to find out whether the device driver is compiled into the kernel:
```
# cat /lib/modules/$(uname -r)/modules.builtin | grep genwqe
```
Confirm that GenWQE device nodes have been created and that the nodes have the required permissions.
Verify that all required environment variables are set to suitable values and that no variables override correct default settings.
```
# env | grep ZLIB
```

You can find debug information in the Linux® source tree at /sys/kernel/debug/genwqe and at /sys/class/genwqe