Re: Wifi connection issues with Intel?

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On 11.06.2014 13:33, Josh Boyer wrote:
On Wed, Jun 11, 2014 at 12:35:36PM +0200, poma wrote:
On 11.06.2014 10:18, poma wrote:
On 11.06.2014 04:34, Richard Shaw wrote:
On Tue, Jun 10, 2014 at 6:09 PM, poma <pomidorabelisima@xxxxxxxxx> wrote:

Firmware, kernel module or userspace? :)


   # uname -r
3.14.5-200.fc20.x86_64

No clue on firmware, I'm not exactly sure how to check which is being
loaded...


Did you mention an exact hardware in question?


02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6235 (rev
24)
Subsystem: Intel Corporation Centrino Advanced-N 6235 AGN
Flags: bus master, fast devsel, latency 0, IRQ 48
Memory at f0200000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [c8] Power Management version 3
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [e0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number c8-f7-33-ff-ff-f4-2d-ba
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi


BTW how are you sure RF environment ain't changed?


Nothing new has come in or left the house since the problem...

Thanks,
Richard


- KERNEL:
$ curl -s https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.6 | grep iwlwifi

So pick up kernel-3.14.6-200.fc20.x86_64.rpm
http://koji.fedoraproject.org/koji/buildinfo?buildID=531773

You can also try with kernel-core-3.15.0-1.fc21.x86_64.rpm
http://alt.fedoraproject.org/pub/alt/rawhide-kernel-nodebug/x86_64/


- FIRMWARE:
$ modinfo -F firmware iwlwifi

# yum --enablerepo updates-testing install iwl6000g2b-firmware

$ rpm -qf /usr/lib/firmware/iwlwifi-6000g2b-6.ucode
iwl6000g2b-firmware-17.168.5.2-38.fc20.noarch

According to
http://wireless.kernel.org/en/users/Drivers/iwlwifi#Firmware
Intel® Centrino® Advanced-N 6235 goes with iwlwifi-6000g2b-ucode-18.168.6.1.tgz
i.e. iwlwifi-6000g2b-6.ucode
also stated within firmware itself:
https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/iwlwifi-6000g2b-6.ucode
"IWL.6000g2b.fw.v18.168.6.1.build.0"

However in Fedora it is packaged as "17" i.e. iwl6000g2b-firmware-17.168.5.2-38.fc20.noarch

Probably because I forgot to increment the version number.

Josh, do these two firmwares should be in their own packages as "18"?

No.


Intel® Centrino® Advanced-N 6235 - iwlwifi-6000g2b-ucode-18.168.6.1
i.e. iwlwifi-6000g2b-6.ucode - "IWL.6000g2b fw v18.168.6.1 build 0"
in iwl6000g2b-firmware-18.168.6.1-1.f$releasever.noarch.rpm

and

Intel® Centrino® Advanced-N 6205 - iwlwifi-6000g2a-ucode-18.168.6.1
i.e. iwlwifi-6000g2a-6.ucode - "IWL.6000g2a fw v18.168.6.1 build 0"
in iwl6000g2a-firmware-18.168.6.1-1.f$releasever.noarch.rpm

e.g.

- Intel® Centrino® Advanced-N 6235

1. Rename
iwl6000g2b-firmware-17.168.5.2-38.fc20.noarch
to
iwl6000g2b5-firmware-17.168.5.2-38.fc20.noarch
/usr/lib/firmware/iwlwifi-6000g2b-5.ucode

2. Create
iwl6000g2b6-firmware-18.168.6.1-1.f20.noarch.rpm
/usr/lib/firmware/iwlwifi-6000g2b-6.ucode


- Intel® Centrino® Advanced-N 6205

3. Rename
iwl6000g2a-firmware-17.168.5.3-38.fc20.noarch
to
iwl6000g2a5-firmware-17.168.5.3-38.fc20.noarch
/usr/lib/firmware/iwlwifi-6000g2a-5.ucode

4. Create
iwl6000g2a6-firmware-18.168.6.1-1.f20.noarch.rpm
/usr/lib/firmware/iwlwifi-6000g2a-6.ucode

No.  That's really pointless work and makes the linux-firmware package
even more complicated that it already is.

The firmware is getting installed and it's correct.  Most times people
don't need to worry about which firmware they have, and if they do they
can consult the WHENCE file installed in /usr/share/doc/linux-firmware/.

josh


IF I correctly understood
http://wireless.kernel.org/en/users/Drivers/iwlwifi#Firmware
Fedora is shipping at least one unnecessary firmware version compared to the kernels used,
e.g. for
Intel® Centrino® Advanced-N 6205
IS required only iwlwifi-6000g2a-6.ucode - kernel 3.2+
and NOT iwlwifi-6000g2a-5.ucode - kernel 2.6.35+

iwlwifi-6000g2b-[56].ucode is a bit more complex case because it refers to four devices i.e.
Intel® Centrino® Advanced-N 6230
Intel® Centrino® Wireless-N 1030
Intel® Centrino® Wireless-N 130
Intel® Centrino® Advanced-N 6235

IF I correctly understood
http://wireless.kernel.org/en/users/Drivers/iwlwifi#Firmware
even the module itself "incorrectly" advertises some of the firmwares,

$ modinfo -F firmware iwlwifi
iwlwifi-100-5.ucode
iwlwifi-1000-5.ucode
iwlwifi-135-6.ucode
iwlwifi-105-6.ucode
iwlwifi-2030-6.ucode
iwlwifi-2000-6.ucode
iwlwifi-5150-2.ucode
iwlwifi-5000-5.ucode
iwlwifi-6000g2b-6.ucode
iwlwifi-6000g2a-5.ucode  <-
iwlwifi-6050-5.ucode
iwlwifi-6000-4.ucode
iwlwifi-7265-8.ucode
iwlwifi-3160-8.ucode
iwlwifi-7260-8.ucode
iwlwifi-8000-8.ucode

Comment by you folks at Intel? :)


poma


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