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()
