[Make-wifi-fast] [PATCH v2 4/4] mac80211: Use Airtime-based Queue Limits (AQL) on packet dequeue

Sebastian Moeller moeller0 at gmx.de
Sat Oct 19 07:37:07 EDT 2019

> On Oct 18, 2019, at 16:15, Johannes Berg <johannes at sipsolutions.net> wrote:
> On Thu, 2019-10-17 at 18:11 -0700, Kan Yan wrote:
>> I don't think it is hard to take care of extra header size for frames
>> with VLAN tags
> VLAN tags are payload as far as wifi is concerned, so no need to take
> that into account ...

	Ah, good to know; but just out of curiosity is any of the following 7 Byte Preamble + 1 Byte start of frame delimiter (SFD) + 12 Byte inter frame gap (IFG) actually packaged into ethernet frames inside 802.11 packets? I would have guessed that at least the IFG would be dropped as it does not really exist as "data"?
	I realise that for the intended purpose of airtime fairness over-estinating the overhead is more benign than under-estimating it, so I really only am curious about what ends up on the wifi packets data payload.

Best Regards

P.S.: I shortened the CC list, as I am sure the interest in the extent of my lack of knowledge is limited...

> johannes

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