[OpenWrt-Devel] Status of DFS in OpenWrt -> ath9k

[Matti Laakso]

Hi,

> for me it seems that DFS is broken in current trunk for ath9k.
> I use trunk and compiled ar71xx. With the following configuration on a
> Ubiquity Nanostation locoM5
>
> ---------
> config wifi-device 'radio0'
> 	option type 'mac80211'
> 	option hwmode '11na'
> 	option path 'pci0000:00/0000:00:00.0'
> 	option htmode 'HT20'
> 	option country 'DE'
> 	option channel '104'
> 	option txpower '20'
>
> config wifi-iface
>         option device 'radio0'
>         option encryption 'none'
>         option network 'wifi'
>         option mode 'ap'
>         option ssid 'OpenWRT'
>         option ifname 'wlan0'
> ---------
>
> All DFS channel attempts fail with
> 	start_dfs_cac() failed, -1


At least on r40878 and ath10k DFS is currently working. The only
difference in my config compared to yours is

option hwmode '11a'

(11na is obsolete). CONFIG_PACKAGE_ATH_DFS and CONFIG_ATH_USER_REGD are
enabled, otherwise default build settings.

Matti
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