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Subject: [PATCH RFC/RFT 0/4] Add Airtime Queue Limits (AQL) to mac80211
From:   =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= <toke@redhat.com>
To:     Johannes Berg <johannes@sipsolutions.net>
Cc:     linux-wireless@vger.kernel.org,
        make-wifi-fast@lists.bufferbloat.net,
        John Crispin <john@phrozen.org>,
        Lorenzo Bianconi <lorenzo@kernel.org>,
        Felix Fietkau <nbd@nbd.name>
Date:   Thu, 19 Sep 2019 14:22:44 +0200
Message-ID: <156889576422.191202.5906619710809654631.stgit@alrua-x1>
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This series is a first attempt at porting the Airtime Queue Limits concept =
from
the out-of-tree ath10k implementation[0] to mac80211. I limited the scope o=
f
this RFC to ath10k, but it should be straight forward to enable other drive=
rs
(they just need to provide a last TX bitrate).

Unfortunately I don't currently have access to hardware to test this, so I'=
m
posting it here in the hope that someone else will take it for a spin. Do n=
ote
that this means that the series is completely untested (although it should
compile :)).

Also note that the series does make a couple of assumptions, as explained i=
n the
individual patches. In particular, it relies on fields surviving in
ieee80211_tx_info; Johannes, care to comment on whether this is a valid
assumption (and whether you're OK with what I'm doing to that struct in the
first patch)?

The series is also available in my git repo here:
https://git.kernel.org/pub/scm/linux/kernel/git/toke/linux.git/log/?h=3Dmac=
80211-aql-01


[0] https://chromium-review.googlesource.com/c/chromiumos/third_party/kerne=
l/+/588190/13/drivers/net/wireless-4.2/ath/ath10k/mac.c#3845

---

Toke H=C3=B8iland-J=C3=B8rgensen (4):
      mac80211: Rearrange ieee80211_tx_info to make room for tx_time_est
      mac80211: Add API function to set the last TX bitrate for a station
      ath10k: Pass last TX bitrate up to mac80211
      mac80211: Apply Airtime-based Queue Limit (AQL) on packet dequeue


 drivers/net/wireless/ath/ath10k/htt_rx.c |    1 +
 include/net/mac80211.h                   |   32 ++++++++++++++++++++-----
 net/mac80211/debugfs.c                   |   24 +++++++++++++++++++
 net/mac80211/ieee80211_i.h               |   11 +++++++++
 net/mac80211/sta_info.c                  |    9 +++++++
 net/mac80211/sta_info.h                  |    2 ++
 net/mac80211/status.c                    |   22 +++++++++++++++++
 net/mac80211/tx.c                        |   38 ++++++++++++++++++++++++++=
+++-
 8 files changed, 131 insertions(+), 8 deletions(-)