[Make-wifi-fast] [RFC/RFT 5/5] ath9k: Count RX airtime in airtime deficit

[Toke Høiland-Jørgensen]

Adrian Chadd <adrian at freebsd.org> writes:

> [snip]
>
> I also found one of my notes in my version of this - how can we
> estimate the duration of an A-MPDU, when we only get hardware
> de-encapsulated frames?

Well in my case I'm sidestepping this by getting the TX duration from a
register in the hardware. There seems to be registers containing the
duration spent on each step in the retry chain; I simply sum these.

-Toke