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Re: [PATCHv2 1/2] nl80211: vendor-cmd: qca: add command for ap power save

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vnaralas@xxxxxxxxxxxxxx writes:

> On 2020-10-22 13:30, Arend Van Spriel wrote:
>> On 10/21/2020 7:19 PM, Kalle Valo wrote:
>>> vnaralas@xxxxxxxxxxxxxx writes:
>>>
>>>> On 2020-09-29 13:10, Kalle Valo wrote:
>>>>> Johannes Berg <johannes@xxxxxxxxxxxxxxxx> writes:
>>>>>
>>>>>> On Mon, 2020-08-24 at 13:56 +0530, Venkateswara Naralasetty wrote:
>>>>>>> AP power save feature is to save power in AP mode, where AP goes
>>>>>>> to power save mode when no stations associate to it and comes out
>>>>>>> of power save when any station associate to AP.
>>>>>>
>>>>>> Why do you think this requires a vendor command? I mean, that seems
>>>>>> like
>>>>>> fairly reasonable - even by default - behaviour?
>>>>>
>>>>> I have not studied the details, but doesn't AP power save break
>>>>> normal
>>>>> functionality? For example, I would guess probe requests from
>>>>> clients
>>>>> would be lost. So there's a major drawback when enabling this,
>>>>> right?
>>>>
>>>> This AP power save feature will not break any functionality, Since
>>>> one
>>>> chain is always active and all other chains will be disabled when
>>>> this
>>>> feature is enabled. AP can still be able to beacon and receive probe
>>>> request from the clients. The only drawback is reduced network range
>>>> when this feature is enabled. Hence, we don't want to enable it by
>>>> default.
>>>
>>> Yeah, we really would not want to enable that by default. But what
>>> should be the path forward, a vendor command or a proper nl80211
>>> command? Any opinions?
>>
>> I would go for a proper nl80211 command or just add an attribute for
>> use in NL80211_CMD_START_AP or deal with NL80211_CMD_SET_POWERSAVE
>> when operating in AP mode.
>>
> Sure, I will go with the existing NL80211_CMD_SET_POWERSAVE and I will
> send next version.

Better to wait first so that we have concensus on this. And need to
check if NL80211_CMD_SET_POWERSAVE is even suitable for AP mode.

-- 
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https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches



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