Re: Problem (maybe a solution) loading iwi firmware: firmware_get: failed to load firmware image iwi_bss

Sam Leffler wrote:
> Erik Nørgaard wrote:
>> The new_iwi has not been backported to -stable yet. I tried to use just
>> the iwi-firmware-kmod port, disabling dhcp on that interface and
>> configuring manually, loading modules in order: firmware, iwi_bss and
>> if_iwi.
> 
> Either you've mis-typed the above or you are incorrect.

Sorry, I think I misunderstood it. I thought the objective of the
new_iwi was to get everything in base thus depreciating the installation
of net/iwi-firmware-kmod.

>> Still, I can not get it working, output from dmesg:
>>
>>
>>   iwi0: <Intel(R) PRO/Wireless 2200BG> mem 0xb0107000-0xb0107fff irq 10
>>      at device 10.0 on pci6
>>   iwi0: Ethernet address: 00:16:6f:93:c9:75
>>
>> This appears fine after I load if_iwi no further errors. But then
>> configuring with
>>
>>   # ifconfig iwi0 10.35.4.64/24 ssid MYAP mode 11g channel 6
>>
>> The following error appears:
>>
>>   Interrupt storm detected on "irq5:"; throttling interrupt source
>>   iwi0: timeout waiting for iwi_bss firmware initialization to complete
>>   iwi0: could not load boot firmware iwi_bss
>>   firmware_get: failed to load firmware image iwi_bss
>>   iwi0: could not load firmware
>>
>> I do get the interface configured but with "no carrier". I unload and
>> reload if_iwi and configure again:
>>
>>   iwi0: detached
>>   iwi0: <Intel(R) PRO/Wireless 2200BG> mem 0xb0107000-0xb0107fff irq 10
>>      at  device 10.0 on pci6
>>   iwi0: Ethernet address: 00:16:6f:93:c9:75
>>   firmware_get: failed to load firmware image iwi_bss
>>   iwi0: could not load firmware
>>
>> Note the interupt storm when the module is first loaded, but not the
>> second time.
>>
>> Why on irq 5 when the iwi0 is on irq 10? Looking at my devices, lspci -v
>> output below, there is an USB controler on irq 5 _and_ 10. Could some
>> with the iwi problems some how propagate?
>>
>> As seen below the bus is ICH6 based.
>>
>> Any hints? Thanks, Erik
> 
> Figure out why you are not loading firmware properly.  The firmware is
> packaged as normal loadable modules you can actually pre-load them using
> kldload.  Check things loaded normally with kdlstat and/or check the
> console log msgs.  My guess is you are not loading the correct firmware
> modules.  I think there's a debugging knob/sysctl for firmware(9) but
> can't remember it off hand.

First, the iwi_bss module is not loaded automatically if none of the
modules firmware, iwi_bss and if_iwi are present,

  # kldload if_iwi

will load firmware, but not iwi_bss. It does not change anything
manually loading firmware and/or iwi_bss before if_iwi or loading
iwi_bss after, manually configuring iwi0 with ifconfig always causes the
error:

  firmware_get: failed to load firmware image iwi_bss
  iwi0: could not load firmware

I am wondering if this could be caused by the ICH6 bus? I have other
problems with the bus, usb does not work although the devices are
registered and as mentioned there seem to be a conflict of irq's.

I can't find a firmware debug knob, but setting debug.iwi=1 just adds
two lines to the dmesg:

iwi_newstate: INIT -> INIT flags 0x0
iwi0: timeout waiting for iwi_bss firmware initialization to complete
iwi0: could not load boot firmware iwi_bss
iwi_newstate: INIT -> INIT flags 0x0

Thanks, Erik
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