diff options
Diffstat (limited to 'package/kernel/mac80211/patches/subsys/331-mac80211-improve-AQL-tx-time-estimation.patch')
-rw-r--r-- | package/kernel/mac80211/patches/subsys/331-mac80211-improve-AQL-tx-time-estimation.patch | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/package/kernel/mac80211/patches/subsys/331-mac80211-improve-AQL-tx-time-estimation.patch b/package/kernel/mac80211/patches/subsys/331-mac80211-improve-AQL-tx-time-estimation.patch deleted file mode 100644 index 529ad13902..0000000000 --- a/package/kernel/mac80211/patches/subsys/331-mac80211-improve-AQL-tx-time-estimation.patch +++ /dev/null @@ -1,80 +0,0 @@ -From: Felix Fietkau <nbd@nbd.name> -Date: Sat, 11 Jun 2022 16:34:32 +0200 -Subject: [PATCH] mac80211: improve AQL tx time estimation - -If airtime cannot be calculated because of missing or unsupported rate info, -use the smallest possible non-zero value for estimated tx time. -This improves handling of these cases by preventing queueing of as many packets -as the driver/hardware queue can hold for these stations. -Also slightly improve limiting queueing by explicitly rounding up small values. - -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - ---- a/include/net/mac80211.h -+++ b/include/net/mac80211.h -@@ -1107,20 +1107,24 @@ struct ieee80211_tx_info { - }; - }; - -+#define IEEE80211_TX_TIME_EST_UNIT 4 -+ -+static inline u16 -+ieee80211_info_get_tx_time_est(struct ieee80211_tx_info *info) -+{ -+ return info->tx_time_est * IEEE80211_TX_TIME_EST_UNIT; -+} -+ - static inline u16 - ieee80211_info_set_tx_time_est(struct ieee80211_tx_info *info, u16 tx_time_est) - { - /* We only have 10 bits in tx_time_est, so store airtime - * in increments of 4us and clamp the maximum to 2**12-1 - */ -- info->tx_time_est = min_t(u16, tx_time_est, 4095) >> 2; -- return info->tx_time_est << 2; --} -+ tx_time_est = DIV_ROUND_UP(tx_time_est, IEEE80211_TX_TIME_EST_UNIT); -+ info->tx_time_est = min_t(u16, tx_time_est, BIT(10) - 1); - --static inline u16 --ieee80211_info_get_tx_time_est(struct ieee80211_tx_info *info) --{ -- return info->tx_time_est << 2; -+ return ieee80211_info_get_tx_time_est(info); - } - - /** ---- a/net/mac80211/status.c -+++ b/net/mac80211/status.c -@@ -999,6 +999,8 @@ static void __ieee80211_tx_status(struct - NULL, - skb->len, - false); -+ if (!airtime) -+ airtime = IEEE80211_TX_TIME_EST_UNIT; - - ieee80211_register_airtime(txq, airtime, 0); - } ---- a/net/mac80211/tx.c -+++ b/net/mac80211/tx.c -@@ -3798,13 +3798,12 @@ encap_out: - - airtime = ieee80211_calc_expected_tx_airtime(hw, vif, txq->sta, - skb->len, ampdu); -- if (airtime) { -- airtime = ieee80211_info_set_tx_time_est(info, airtime); -- ieee80211_sta_update_pending_airtime(local, tx.sta, -- txq->ac, -- airtime, -- false); -- } -+ if (!airtime) -+ airtime = IEEE80211_TX_TIME_EST_UNIT; -+ -+ airtime = ieee80211_info_set_tx_time_est(info, airtime); -+ ieee80211_sta_update_pending_airtime(local, tx.sta, txq->ac, -+ airtime, false); - } - - return skb; |