Re: [PATCH 0/4] cfg80211/mac80211: Add support to configure and monitor txrate threshold

[Arend van Spriel <arend.vanspriel@broadcom.com>]

On 6/13/2018 5:10 PM, Toke Høiland-Jørgensen wrote:
> Tamizh Chelvam Raja <tamizhr@qti.qualcomm.com> writes:
>
>>> This patchsets introduced new NL command and api to support
>>> configuring txrate threshold for the connected stations and api to
>>> notify userspace application upon crossing the configured txrate threshold.
>>> This will be useful for the application which requires station's
>>> current capability change information.
>>
>> What is the intended use case? Asking mostly out of curiosity :)
>
>> [Tamizh] This is to monitor txrate change for a station. By notifying
>> userspace when the txrate for a station goes out of configured
>> threshold, It can take steering decisions on the particular station.
>
> Yeah, I got that part. I was curious as to what (userspace) application
> you were planning to use this for? I.e., what kind of steering
> decisions? :)

It sounds like network initiated handover as opposed to station roaming. 
Suspect the user-space application referred to here is a proprietary 
application. At plumbers conf I attended a couple of years ago there was 
an idea to have a network management application controlling multiple 
hostapd instances for this type of functionality, but not sure if that 
project ever got of the ground.

Regards,
Arend