New iwm wireless driver stopped working (9560)

[Mark Johnston]

On Sun, Nov 10, 2019 at 10:18:14PM +0800, Ben Woods wrote:
> Hi everyone,
> 
> Since Mark recently committed the new iwm driver discussed at the bug
> report below, I had been happily using my built in wireless card.
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227044#c24
> 
> However, as of today it has stopped working - the card no longer shows up
> under "sysctl net.wlan.devices".
> 
> Since I am running the exact same code as when it was working, the only
> thing I can think of that could have changed it is that I had rebooted this
> laptop into Windows, and Intel driver update was waiting - I applied it.
> This might have flashed the firmware on the device.

The firmware is always reloaded by iwm at device initialization time.

> Any ideas what could cause this or how to troubleshoot it? The pciconf
> looks the same as when I reported it on the above bug report.

Does anything get printed to dmesg when you kldload if_iwm?