Re: New laptop: AC 9461/9560: iwm or iwlwifi?

On Mon, Dec 19, 2022 at 10:07:50PM +0000, you (Bjoern A. Zeeb) sent the following to [freebsd-wireless] :
> You could try a devctl reset ... between detach and set driver.
> 
> Also you could try to stop the iwm0 (wlan0) before detaching and see if
> that gets a clean(er) shutdown (service netif destroy wlan0 && devctl
> detach ...)

I rebooted with both wlans_ entries in rc.conf but not having any
devmatch_blocklist active.
wlan0 got autocreated with iwm0 as parent and is fuctioning.
So at least having 2 wlans_ entries doesn't seem to hurt.
Also if_iwlwifi.ko is listed in the kldstat output:

# kldstat | grep -e wlan -e wi-fi -e wifi -e iwm
 3    1 0xffffffff82141000     3130 wlan_xauth.ko
17    1 0xffffffff850c7000    880c8 if_iwlwifi.ko
18    1 0xffffffff85150000    17310 if_iwm.ko
21    1 0xffffffff85200000   28fee8 iwm9000fw.ko

I stopped wlan0 and performed the devctl reset in between the detach and
set driver steps but still wasn't successful:

# service netif stop wlan0 && devctl detach pci0:0:20:3 && devctl reset pci0:0:20:3 && devctl set driver pci0:0:20:3 iwlwifi

wlan0 got destroyed and the following was logged in /var/log/messages:

Dec 19 22:31:42 harbinger wpa_supplicant[73966]: wlan0: CTRL-EVENT-DISCONNECTED bssid=72:a7:41:9b:4f:da reason=3 locally_generated=1
Dec 19 22:31:42 harbinger wpa_supplicant[73966]: wlan0: CTRL-EVENT-DSCP-POLICY clear_all
Dec 19 22:31:42 harbinger syslogd: last message repeated 1 times
Dec 19 22:31:42 harbinger wpa_supplicant[73966]: wlan0: CTRL-EVENT-TERMINATING
Dec 19 22:31:42 harbinger kernel: [680] wlan0: link state changed to DOWN
Dec 19 22:31:42 harbinger rtsold[63523]: <rtsock_input_ifannounce> interface wlan0 removed
Dec 19 22:31:42 harbinger kernel: [680] iwm0: detached
Dec 19 22:31:42 harbinger kernel: [680] pci0:0:20:3: Transition from D0 to D3
Dec 19 22:31:42 harbinger root[97472]: /etc/rc.d/netif: WARNING: wlan0 does not exist.  Skipped.
Dec 19 22:31:42 harbinger kernel: [681] pci0:0:20:3: Transition from D0 to D3
Dec 19 22:31:42 harbinger kernel: [681] iwlwifi0: <iwlwifi> mem 0xea238000-0xea23bfff irq 16 at device 20.3 on pci0
Dec 19 22:31:42 harbinger kernel: [681] iwlwifi0: HW_REV=0xFFFFFFFF, PCI issues?
Dec 19 22:31:42 harbinger kernel: [681] device_attach: iwlwifi0 attach returned 5

Despite pci0:0:20:3 seeemingly "attached" to iwlwifi0 I can't seem to
get wlan0 created using iwlwifi as parent.

HTH

-- 
Marco van Lienen -- FreeBSD enthusiast
https://keybase.io/scarcry , GnuPG fingerprint: A025 D8AA AC1B D2FC 380D 4FC1 8EA0 0BA8 8580 E6CB
"The Tuck Pendleton machine...zero defects."