01.04.22 14:53, Bjoern A. Zeeb пишет:
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


I'v got it solved for now. The reason was inhw.pci.do_power_nodriver=3 which was setted in both /boot/loader.conf and /etc/sysctl.conf.

iwlwifi0@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, enabled
   cap 01[c8] = powerspec 3  supports D0 D3  current D0
   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, enabled
                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

Thank you for your help and sorry for wasted time.


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