From: Kan Yan <kyan@google.com>
To: johannes@sipsolutions.net
Cc: linux-wireless@vger.kernel.org,
make-wifi-fast@lists.bufferbloat.net, toke@redhat.com,
nbd@nbd.name, yiboz@codeaurora.org, Kan Yan <kyan@google.com>
Subject: [PATCH v2 0/2] Implement Airtime-based Queue Limit (AQL)
Date: Sun, 6 Oct 2019 21:31:18 -0700 [thread overview]
Message-ID: <20191007043120.67567-1-kyan@google.com> (raw)
This patch series implements Airtime-based Queue Limit (AQL) in the mac80211 and Ath10k driver. It is based on an earlier version from the ChromiumOS tree[0].
This version has been tested with QCA9884 platform with 4.14 kernel. Tests show AQL is able to reduce latency by an order of magnitude in a congested environment without negative impact on the throughput.
[0] https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/1703105/7
Kan Yan (2):
mac80211: Implement Airtime-based Queue Limit (AQL)
ath10k: Enable Airtime-based Queue Limit (AQL)
drivers/net/wireless/ath/ath10k/htt_rx.c | 1 +
drivers/net/wireless/ath/ath10k/mac.c | 8 ++-
drivers/net/wireless/ath/ath10k/txrx.c | 13 +++-
include/net/cfg80211.h | 7 +++
include/net/mac80211.h | 29 +++++++++
net/mac80211/debugfs.c | 78 ++++++++++++++++++++++++
net/mac80211/debugfs_sta.c | 44 +++++++++----
net/mac80211/ieee80211_i.h | 4 ++
net/mac80211/main.c | 8 ++-
net/mac80211/sta_info.c | 20 ++++++
net/mac80211/sta_info.h | 4 ++
net/mac80211/tx.c | 58 +++++++++++++++---
12 files changed, 247 insertions(+), 27 deletions(-)
--
Changes from v1:
- Fix checkpatch error.
- Keep iterate the list of active_txq until an eligible txq's deficit become non-negative in ieee80211_next_txq(), instead of break the loop after one iteration.
- Enforce the AQL limit in ath10k's pulling mode in ath10k_htt_rx_tx_fetch_ind()
next reply other threads:[~2019-10-07 4:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-07 4:31 Kan Yan [this message]
2019-10-07 4:31 ` [PATCH v2 1/2] mac80211: Implement Airtime-based Queue Limit (AQL) Kan Yan
2019-10-07 19:33 ` Johannes Berg
2019-10-09 8:18 ` Yibo Zhao
2019-10-09 22:44 ` Kan Yan
2019-10-10 1:55 ` Yibo Zhao
2019-10-07 4:31 ` [PATCH v2 2/2] ath10k: Enable " Kan Yan
2019-10-09 13:17 ` Kalle Valo
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