Changes between Version 73 and Version 74 of wireless/wifi


Ignore:
Timestamp:
05/25/2022 11:10:37 PM (4 months ago)
Author:
Cale Collins
Comment:

added note in increasing CMA for ath11k

Legend:

Unmodified
Added
Removed
Modified
  • wireless/wifi

    v73 v74  
    857857reboot
    858858}}}
    859 
    860859* Verify the interface is available using the command "ls /sys/class/net".
     860
     861More CMA mememory may need to be alocated. 
     862
     863In dmesg check for messages reguarding inadiquate CMA:
     864
     865{{{
     866[    7.533137] cma: cma_alloc: reserved: alloc failed, req-size: 512 pages, ret: -12
     867[    7.541360] cma: cma_alloc: reserved: alloc failed, req-size: 512 pages, ret: -12
     868[    7.549628] cma: cma_alloc: reserved: alloc failed, req-size: 512 pages, ret: -12
     869[    7.557880] cma: cma_alloc: reserved: alloc failed, req-size: 512 pages, ret: -12
     870[    7.566108] cma: cma_alloc: reserved: alloc failed, req-size: 256 pages, ret: -12
     871[    7.574106] cma: cma_alloc: reserved: alloc failed, req-size: 512 pages, ret: -12
     872[    7.582373] cma: cma_alloc: reserved: alloc failed, req-size: 512 pages, ret: -12
     873[    7.590731] cma: cma_alloc: reserved: alloc failed, req-size: 256 pages, ret: -12
     874[    7.598641] cma: cma_alloc: reserved: alloc failed, req-size: 512 pages, ret: -12
     875[    7.606884] cma: cma_alloc: reserved: alloc failed, req-size: 256 pages, ret: -12
     876
     877}}}
     878
     879To remedy:
     880
     881{{{#!bash
     882#in U-boot
     883setenv bootargs ${bootargs} cma=128M
     884saveenv
     885}}}
     886
     887
    861888
    862889Speed testing was bottlenecked by the router being used.  WLE3000H2 maxed out it's throughput.