Date: Fri, 1 Apr 2022 14:34:16 +0300 From: Oleksandr Kryvulia <shuriku@shurik.kiev.ua> To: wireless@freebsd.org Subject: Re: iwlwifi failed to attach Message-ID: <2c64cf74-ec67-5e6d-e36d-df1bb2c5a402@shurik.kiev.ua> In-Reply-To: <alpine.BSF.2.00.2204010044480.68830@ai.fobar.qr> References: <85f3cdd5-9bcc-426b-55e8-f3964de87c52@shurik.kiev.ua> <alpine.BSF.2.00.2203291300170.68830@ai.fobar.qr> <87e39641-f6c2-3306-e89d-fe6ba5a8ff39@shurik.kiev.ua> <alpine.BSF.2.00.2203291324050.68830@ai.fobar.qr> <89fa7191-30aa-e550-0e5d-d061c985c5ab@shurik.kiev.ua> <alpine.BSF.2.00.2204010044480.68830@ai.fobar.qr>
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01.04.22 03:59, Bjoern A. Zeeb пишет: > On Tue, 29 Mar 2022, Oleksandr Kryvulia wrote: > >>> iwm(4) is likely compiled into the kernel... forgive me. You can >>> proabbly >>> try >>> hint.iwm.disabled="1" >>> or >>> hint.iwm.0.disabled="1" >>> >>> in loader.conf and see if that helps or compile a kernel without iwm >>> and iwmfw to test. >> Ok, boot with iwm disabled: >> >> root@thinkpad:/ # kldstat -v | grep -e 'iw[ml]' >> 26 1 0xffffffff83b3f000 88070 if_iwlwifi.ko >> (/boot/kernel/if_iwlwifi.ko) >> 526 pci/lkpi_iwl_hw_card_ids >> >> pciconf -lBbcevV: > > what's the reason iwlwifi did not auto-attach if iwm is not avail? > >> 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 > > why is the bar disabled? That should not be the case I believe on a > normal FreeBSD boot. Even if no driver is attached or supported > pci(4) will still enable resources on boot. I have hw.pci.do_power_nodriver=3 in loader.conf, but changing it to 0 make no difference. > > >> 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 >> >> Attach iwlwifi: >> >> root@thinkpad:/ # devctl set driver pci0:0:20:3 iwlwifi >> devctl: Failed to set pci0:0:20:3 driver to iwlwifi: Input/output error >> >> dmesg -a: >> >> iwlwifi0: <iwlwifi> mem 0xdd638000-0xdd63bfff at device 20.3 on pci0 >> iwlwifi0: HW_REV=0xFFFFFFFF, PCI issues? >> device_attach: iwlwifi0 attach returned 5 > > That's EIO from the failure in iwl_trans_pcie_alloc(). > > 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
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