On Mon, 19 Dec 2022, Marco wrote:
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.
So you by any chance have any power saving sysctl (or tunables) set?
I see two transiotions from D0 to D3 logged but nothing taking the
device out of D3 gets logged (could be an omission elsewhere).
Can you show a
pciconf -lBbcevV iwlwifi0
or
pciconf -lBbcevV pci0:0:20:3
(which ever one works in that state)?
/bz
--
Bjoern A. Zeeb r15:7
