[Make-wifi-fast] [PATCH RFC v3 1/4] mac80211: Add TXQ scheduling API

Johannes Berg johannes at sipsolutions.net
Mon Sep 10 08:46:27 EDT 2018

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" :-)


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