Hi & welcome to the forums!
What FC adapter is it, that you have installed in your server? What does “lspci -nn” report (also note the numeric IDs in square brackets)?
Can you unload the driver (“rmmod qla2xxx”)? That’d be an indicator that the module is indeed not in use. And it’d allow to manually (re-)load it, specifying debug parameters.
When looking at the output from “modinfo qla2xxx”, you should see “parm: ql2xextended_error_logging:Option to enable extended error logging”, with one of the possible values being " 0x10000000 - Device Discovery" and another being “0x40000000 - Module Init & Probe” (all the values are bit flags, so to activate more than one debug level, you need to add the individual numbers. 0x7fffffff is “enable all”, which would be quite verbose on an active adapter).
So either add that parameter to a new entry in /etc/modprobe.d/99-local.conf and reload the module or directly invoke “modprobe qla2xxx ql2xextended_error_logging=0x50000000”, maybe you’ll see more descriptive infos in “dmesg” output. (I just tested that on a machine without supported adapter, but would get none but a single module load message, even with 0x7fffffff.)
Please also note the list of supported PCI ids at the top of the “modinfo” output - is your adapter’s ID included?