On Fri, 1 Apr 2022, Oleksandr Kryvulia wrote:
01.04.22 03:59, Bjoern A. Zeeb пишет:
Sorry, I think I have to roll this back.
I assume you are on GENERIC?
Yes, GENERIC-NODEBUG.
I assume iwm(4) normally is loaded as a module along with firmware
and works fine?
Yes, iwm(4) works fine, I'm sending this message over it.
Ignoring the above hint.iwm... if you move if_iwm.ko out of
/boot/kernel temporary and run kldxref /boot/kernel and reboot
on a recent main or stable/13, what happens without you doing any
devctl? Is iwlfiwi auto-loaded? does pciconf show the BAR enabled
then?
# mv /boot/kernel/if_iwm.ko /home/o.kryvulia/
# kldxref /boot/kernel
# shutdown -p now
Power on and boot:
Autoloading module: if_iwlwifi
Intel(R) Wireless WiFi based driver for FreeBSD
Autoloading module: ig4
Autoloading module: pchtherm
pchtherm0: <CannonLake-LP Thermal Subsystem> mem 0xdd643000-0xdd643fff at
device 18.0 on pci0
iwlwifi0: <iwlwifi> mem 0xdd638000-0xdd63bfff at device 20.3 on pci0
iwlwifi0: HW_REV=0xFFFFFFFF, PCI issues?
device_attach: iwlwifi0 attach returned 5
pciconf shows the same:
none3@pci0:0:20:3: class=0x028000 rev=0x30 hdr=0x00 vendor=0x8086
device=0x9df0 subvendor=0x8086 subdevice=0x0034
vendor = 'Intel Corporation'
device = 'Cannon Point-LP CNVi [Wireless-AC]'
class = network
bar [10] = type Memory, range 64, base 0xdd638000, size 16384, disabled
cap 01[c8] = powerspec 3 supports D0 D3 current D3
cap 05[d0] = MSI supports 1 message, 64 bit
cap 10[40] = PCI-Express 2 root endpoint max data 128(128) FLR RO NS
max read 128
cap 11[80] = MSI-X supports 16 messages
Table in map 0x10[0x2000], PBA in map 0x10[0x3000]
ecap 0000[100] = unknown 0
ecap 0018[14c] = LTR 1
ecap 000b[164] = Vendor [1] ID 0010 Rev 0 Length 20
Okay, can I ask you for one last test. Can you boot -s (to single
user) and check the full pciconf there and then simply exit and let
to boot continue back to iwm. You may need to mount -uw / in order to
save the full pciconf output.
iwlwifi tends to disable resources on detach, so we could se an
aftermath problem here even on attach failure. I just want to make
sure given the device is in D3 that we do boot up and are good before
any wifi driver attaches.
Later,
Bjoern
--
Bjoern A. Zeeb r15:7
