gerdesj , 1 month ago

Please do a little research before trying random stuff. After checking to see if you are actually using the iwlwifi module, why not find out a bit about whether the mentioned param. is available to you and what it does:

Am I using the module. If the output from this is blank, then no:

<span style="color:#323232;">$ lsmod | grep iwlwifi
</span><span style="color:#323232;">iwlwifi               622592  1 iwlmvm
</span><span style="color:#323232;">cfg80211             1331200  3 iwlmvm,iwlwifi,mac80211
</span><span style="color:#323232;">
</span>

Also verify with lspci -k as above:

<span style="color:#323232;">$ lspci -k | grep iwlwifi -A2 -B2
</span><span style="color:#323232;">        DeviceName: WLAN
</span><span style="color:#323232;">        Subsystem: Intel Corporation Raptor Lake PCH CNVi WiFi
</span><span style="color:#323232;">        Kernel driver in use: iwlwifi
</span><span style="color:#323232;">        Kernel modules: iwlwifi
</span><span style="color:#323232;">00:15.0 Serial bus controller: Intel Corporation Alder Lake PCH Serial IO I2C Controller #0 (rev 01)
</span><span style="color:#323232;">        Subsystem: Hewlett-Packard Company Alder Lake PCH Serial IO I2C Controller
</span><span style="color:#323232;">
</span>

<span style="color:#323232;"># modinfo iwlwifi
</span><span style="color:#323232;">   ...
</span><span style="color:#323232;">parm:           swcrypto:using crypto in software (default 0 [hardware]) (int)
</span><span style="color:#323232;">parm:           11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
</span><span style="color:#323232;">parm:           amsdu_size:amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, 4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0) (int)
</span><span style="color:#323232;">parm:           fw_restart:restart firmware in case of error (default true) (bool)
</span><span style="color:#323232;">parm:           nvm_file:NVM file name (charp)
</span><span style="color:#323232;">parm:           uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint)
</span><span style="color:#323232;">parm:           enable_ini:0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined,Debug INI TLV FW debug infrastructure (default: 16) (uint)
</span><span style="color:#323232;">parm:           bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
</span><span style="color:#323232;">parm:           led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
</span><span style="color:#323232;">parm:           power_save:enable WiFi power management (default: disable) (bool)
</span><span style="color:#323232;">parm:           power_level:default power save level (range from 1 - 5, default: 1) (int)
</span><span style="color:#323232;">parm:           disable_11ac:Disable VHT capabilities (default: false) (bool)
</span><span style="color:#323232;">parm:           remove_when_gone:Remove dev from PCIe bus if it is deemed inaccessible (default: false) (bool)
</span><span style="color:#323232;">parm:           disable_11ax:Disable HE capabilities (default: false) (bool)
</span><span style="color:#323232;">parm:           disable_11be:Disable EHT capabilities (default: false) (bool)
</span><span style="color:#323232;">
</span>

sysfs is a pseudo filesystem with lots of info in it. cat the files here:

<span style="color:#323232;">$ ls -l /sys/module/iwlwifi/parameters/
</span><span style="color:#323232;">
</span>

… to see what your current values are set at. You can install sysfstools and run this for a neat report:

<span style="color:#323232;">$ systool -vm iwlwifi
</span><span style="color:#323232;">Module = "iwlwifi"
</span><span style="color:#323232;">
</span><span style="color:#323232;">  Attributes:
</span><span style="color:#323232;">     ...
</span><span style="color:#323232;">  Parameters:
</span><span style="color:#323232;">    11n_disable         = "0"
</span><span style="color:#323232;">    amsdu_size          = "0"
</span><span style="color:#323232;">    bt_coex_active      = "Y"
</span><span style="color:#323232;">    disable_11ac        = "N"
</span><span style="color:#323232;">    disable_11ax        = "N"
</span><span style="color:#323232;">    disable_11be        = "N"
</span><span style="color:#323232;">    enable_ini          = "16"
</span><span style="color:#323232;">    fw_restart          = "Y"
</span><span style="color:#323232;">    led_mode            = "0"
</span><span style="color:#323232;">    nvm_file            = "(null)"
</span><span style="color:#323232;">    power_level         = "0"
</span><span style="color:#323232;">    power_save          = "N"
</span><span style="color:#323232;">    remove_when_gone    = "N"
</span><span style="color:#323232;">    swcrypto            = "0"
</span><span style="color:#323232;">    uapsd_disable       = "3"
</span><span style="color:#323232;">
</span>