ath12k: WCN7851 and QCN9274 monitor mode not working

[Kang Yang]

On 8/19/2024 5:14 PM, Florian Schmidt wrote:
> Hi,
> 
> I am trying to use ath12k in monitor mode with cards WCN7851 and QCN9274 without success.
> 
> When switching the interface to monitor, iw always fail with the following response:
> command failed: Operation not supported (-95)
> 
> But ''iw phy show’’ reports that the interface support monitor mode.

This flag is set by mac80211 in ieee80211_register_hw():

/* mac80211 always supports monitor */
hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);

Our upstream code currently doesn't support it yet.

> 
> I tried with many kernels, using todays firmware from the ath12k-firmware repository, the 6.10.5 kernel and the ath-pending kernel and always get the same result.
> 
> Is there any way to get monitor mode to work on Qualcom WiFi 7 chips?

No, we haven't upstream related patch-set yet.

Indeed we have some patch-sets under review now.

Not sure when we can upstream all of them.


> 
> Thank you.
>