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KZQN7737
n00b
Joined: 13 Feb 2024
Posts: 27
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 Posted: Fri Mar 08, 2024 11:05 pm Post subject: IWL firmware embedded in Kernel for Comet Lake PCH CNVi WiFi |
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Greetings.
I have wlp0s20f3 network wifi card available while I'm chrooted in minimal gentoo livecd.
ip link:
| Code: |
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: wlp0s20f3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000 link/ether c4:75:ab:4d:ce:07 brd ff:ff:ff:ff:ff:ff
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Although, when I'm in my booted kernel I have some mysterious sit@NONE instead.
(Seeing this on my system for the first time in 4 years of being on various Linux distributions, such as Ubuntu, Linux Mint, Fedora, Arch)
| Code: |
ip link && ip addr:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 brd 127.255.255.255 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host proto kernel_lo valid_lft forever preferred_lft forever 2: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000 link/sit 0.0.0.0 brd 0.0.0.0 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 brd 127.255.255.255 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host proto kernel_lo valid_lft forever preferred_lft forever 2: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000 link/sit 0.0.0.0 brd 0.0.0.0
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I've read:
https://wiki.gentoo.org/wiki/Iwlwifi
My IWLWIFI kernel parameters are chosen to be embedded into kernel instead of building as a loadable kernel module. Generally I don't have support for modules and chose to build the kernel LKM-free (you can see no <m>'s chosen in my .config).
| Quote: | In this case replace iwlwifi-xxxx.ucode with the exact firmware name. Some attention seems to be needed for FW_LOADER_USER_HELPER_FALLBACK.
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I've seen and downloaded the latest firmware through wget:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
However, I don't understand what particular iwlwifi-xxxx.ucode firmware should I include in my kernel for this device:
lspci | grep Network:
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00:14.3 Network controller: Intel Corporation Comet Lake PCH-LP CNVi WiFi
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How do I find out its' precise model so it would fit in to the table from documentaion IWLwifi article:
https://web.archive.org/web/20190305085430/https://wireless.wiki.kernel.org/en/users/Drivers/iwlwifi
Or https://www.intel.com/content/www/us/en/support/articles/000005511/wireless.html
?
Unfortunately, I was not able to find the information regarding that, so I ask for help.
My .config:
http://dpaste.com/DHRNRJGD6
Regards. |
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grknight
Retired Dev
Joined: 20 Feb 2015
Posts: 1661
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| Posted: Fri Mar 08, 2024 11:18 pm Post subject: |
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| KZQN7737 wrote: | | However, I don't understand what particular iwlwifi-xxxx.ucode firmware should I include in my kernel for this device: |
The firmware file necessary will change from kernel version to kernel version. This is one reason a module is recommended here for this driver.
The particular name will show up when booting a certain kernel due to a Gentoo addition (unless that was disabled). If you want to keep this as built-in, you will have to recognize when a firmware is deemed obsolete and no longer connects |
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