[Make-wifi-fast] [PATCH RFC v3 1/4] mac80211: Add TXQ scheduling API
toke at toke.dk
Mon Sep 10 09:08:56 EDT 2018
Johannes Berg <johannes at sipsolutions.net> writes:
> On Mon, 2018-09-10 at 14:39 +0200, Toke Høiland-Jørgensen wrote:
>> > From then on, right now we basically just try to refill the hardware
>> > queue from the TXQ whenever the hardware releases frames from that
>> > queue. If there are none, we fall back to putting them on the hardware
>> > queue from the wake signal.
>> OK. So if the TXQ is ineligible to dequeue packets, but still have them
>> queued, there would need to be a signal (such as wake_txq()) when it
>> becomes eligible again, right?
> Right. It wouldn't have to be wake_txq, but that seems as appropriate as
> anything else.
> If we were to use ieee80211_airtime_may_transmit(), we'd have to have
> something that tells us "I previously told you it may not transmit, but
> now I changed my mind" :-)
Yes, exactly. Hmm, I'll see what I can come up with :)
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