[PATCH v2] ath10k: Implement get_expected_throughput callback

akolli at codeaurora.org akolli at codeaurora.org
Sun Apr 15 23:30:32 PDT 2018

On 2018-04-14 01:54, Peter Oh wrote:
> On 04/13/2018 06:48 AM, Kalle Valo wrote:
>> Sven Eckelmann <sven.eckelmann at openmesh.com> writes:
>>> But of course, I cannot say much about how the rate control from QCA 
>>> works and
>>> in which form these information are already available.
>>> If you want to know the average PHY rate then wouldn't it be better 
>>> to report
>>> the rates to one of the upper layers and let them to the averaging? 
>>> Similar to
>>> what there already is for NL80211_STA_INFO_CHAIN_SIGNAL
>>> (NL80211_STA_INFO_CHAIN_SIGNAL_AVG) just for 
>>> NL80211_STA_INFO_RX_BITRATE. Not sure whether this makes sense or 
>>> whether
>>> someone has an use-case for it.
>> Sounds like a good idea, but I don't see it preventing to apply this
>> patch. We can always change the implementation later as this is just
>> communication between ath10k and mac80211, right?
> I agree with Sven on the usage or expectation of
> get_expected_throughput cabllback.
> It's not really ab expected throughput implementation.
> However I'm with Kalle about approving this patch as Sven also
> mentioned "here sounds a little bit like in "Our medical doctor would
> ideally not decapitate each patient but we have at least an MD"".
> I could improve it once merged since there are more members in
> ath10k_per_peer_tx_stats useful such as succ_bytes, failed_bytes,
> duration, and etc.

On each packet sent successfully, driver has the success_bytes details.
Throughput calculation can be done using these bytes and tx rate 
(tx_rate * bytes),
send this average value to mac80211. is this you are thinking of?


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