[Make-wifi-fast] [PATCH RFC/RFT 4/4] mac80211: Apply Airtime-based Queue Limit (AQL) on packet dequeue

Toke Høiland-Jørgensen toke at redhat.com
Wed Sep 25 08:52:39 EDT 2019

Yibo Zhao <yiboz at codeaurora.org> writes:

> On 2019-09-25 16:11, Toke Høiland-Jørgensen wrote:
>> Yibo Zhao <yiboz at codeaurora.org> writes:
>>> So if it is going to work together with virtual time based mechanism 
>>> in
>>> the future, the Tx criteria will be met both of below conditions,
>>>         1. Lower than g_vt
>>>         2. Lower than IEEE80211_AIRTIME_QUEUE_LIMIT
>>> Are we going to maintain two kinds of airtime that one is from
>>> estimation and the other is basically from FW reporting?
>> Yes, that was my plan. For devices that don't have FW reporting of
>> airtime, we can fall back to the estimation; but if we do have FW
>> reporting that is most likely going to be more accurate, so better to
>> use that for fairness...
> Do you mean we will use airtime reported by FW to calculate 
> local->airtime_queued in case we have FW reporting airtime?

No, the opposite; if the firmware can't report airtime, we can use the
estimated values to feed into report_airtime() for the fairness


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