Changes between Version 139 and Version 140 of wireless/wifi


Ignore:
Timestamp:
02/09/2026 06:52:10 PM (35 hours ago)
Author:
Tim Harvey
Comment:

added details about ath12k firmware and cma requirements

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  • wireless/wifi

    v139 v140  
    11421142Ath12k is a Linux driver for Qualcomm 802.11BE devices. 802.11BE is often called WiFi7.
    11431143
    1144 The proper firmware files are required depending on the WiFi Card.
     1144The proper firmware files are required depending on the !WiFi Card and while some of these files are packaged and/or available on [https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/ linux-firmware.git ] a vendor specific board configuration file (board.bin) is needed. Contact the vendor of the card for this file.
     1145
     1146Additionally these cards typically require a large amount of contiguous memory used for DMA (typically 100M). The Linux DMA Contiguous Memory Allocator (CMA) kernel configuration needs to be enabled (CONFIG_DMA_CMA=y). As long as DMA_CMA is configured you can override the size configured in the kernel with a kernel parameter, for example 'cma=100M' passed in via bootargs.
    11451147
    11461148See more information for the Compex ath12k card: [wiki:FSA#Card:CompexWLTB7002E25M.2B-KeyM-KeyWiFi7radio Compex WLTB7002E25]