[Make-wifi-fast] [v3] ath9k: Switch to using mac80211 intermediate software queues.

[Kalle Valo]

Toke Høiland-Jørgensen wrote:
> This switches ath9k over to using the mac80211 intermediate software
> queueing mechanism for data packets. It removes the queueing inside the
> driver, except for the retry queue, and instead pulls from mac80211 when
> a packet is needed. The retry queue is used to store a packet that was
> pulled but can't be sent immediately.
> 
> The old code path in ath_tx_start that would queue packets has been
> removed completely, as has the qlen limit tunables (since there's no
> longer a queue in the driver to limit).
> 
> Based on Tim's original patch set, but reworked quite thoroughly.
> 
> Cc: Tim Shepard <shep at alum.mit.edu>
> Cc: Felix Fietkau <nbd at nbd.name>
> Signed-off-by: Toke Høiland-Jørgensen <toke at toke.dk>

Nice work. Because this is such a significant change, and to maximise testing
time, I'm planning to queue this for 4.9 (so I would apply this to ath-next in
3-4 weeks after the merge window closes). But anyone who wants to test this can
use master-pending branch from my ath.git tree (uses wireless-testing as the
baseline). Sounds good?

Testing and review feedback very welcome!

-- 
Sent by pwcli
https://patchwork.kernel.org/patch/9216993/