[Make-wifi-fast] [PATCH RFC v3 0/4] Move TXQ scheduling into mac80211

Toke Høiland-Jørgensen toke at toke.dk
Mon Sep 10 07:16:19 EDT 2018

Johannes Berg <johannes at sipsolutions.net> writes:

> On Sat, 2018-09-08 at 00:22 +0200, Toke Høiland-Jørgensen wrote:
>> - I didn't get rid of the register_airtime() callback. As far as I can tell,
>>   only iwlwifi uses the tx_time field in the struct tx_info. Which means that
>>   we *could* probably use it for this and just make the other drivers set it;
>>   but I'm not sure what effects that would have in relation to WMM-AC for
>>   those drivers, so I chickened out. Will have to try it out, I guess; but it
>>   also depends on whether ath10k needs to be able to report airtime
>>   asynchronously anyway. So I'll hold off on that for a bit more.
> I don't think you need to be concerned, the reporting through this has
> no immediate effect as the driver would also have to set the feature
> flag (NL80211_FEATURE_SUPPORTS_WMM_ADMISSION) for userspace to be able
> to use WMM admission TSPECs, and getting tx_tspec->admitted_time to be
> non-zero in ieee80211_sta_tx_wmm_ac_notify().

Great! In that case I'll try moving the reporting go through the tx_info
struct and check that it works for ath9k :)


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