diff options
Diffstat (limited to 'package/kernel/mac80211/patches/subsys/374-mac80211-move-A-MPDU-session-check-from-minstrel_ht-.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/374-mac80211-move-A-MPDU-session-check-from-minstrel_ht-.patch | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/subsys/374-mac80211-move-A-MPDU-session-check-from-minstrel_ht-.patch b/package/kernel/mac80211/patches/subsys/374-mac80211-move-A-MPDU-session-check-from-minstrel_ht-.patch new file mode 100644 index 0000000000..4e3242e6a9 --- /dev/null +++ b/package/kernel/mac80211/patches/subsys/374-mac80211-move-A-MPDU-session-check-from-minstrel_ht-.patch @@ -0,0 +1,126 @@ +From: Felix Fietkau <nbd@nbd.name> +Date: Thu, 17 Jun 2021 17:56:54 +0200 +Subject: [PATCH] mac80211: move A-MPDU session check from minstrel_ht to + mac80211 + +This avoids calling back into tx handlers from within the rate control module. +Preparation for deferring rate control until tx dequeue + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + +--- a/include/net/mac80211.h ++++ b/include/net/mac80211.h +@@ -6160,6 +6160,11 @@ enum rate_control_capabilities { + * otherwise the NSS difference doesn't bother us. + */ + RATE_CTRL_CAPA_VHT_EXT_NSS_BW = BIT(0), ++ /** ++ * @RATE_CTRL_CAPA_AMPDU_TRIGGER: ++ * mac80211 should start A-MPDU sessions on tx ++ */ ++ RATE_CTRL_CAPA_AMPDU_TRIGGER = BIT(1), + }; + + struct rate_control_ops { +--- a/net/mac80211/rc80211_minstrel_ht.c ++++ b/net/mac80211/rc80211_minstrel_ht.c +@@ -1153,29 +1153,6 @@ minstrel_downgrade_prob_rate(struct mins + } + + static void +-minstrel_aggr_check(struct ieee80211_sta *pubsta, struct sk_buff *skb) +-{ +- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; +- struct sta_info *sta = container_of(pubsta, struct sta_info, sta); +- u16 tid; +- +- if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO) +- return; +- +- if (unlikely(!ieee80211_is_data_qos(hdr->frame_control))) +- return; +- +- if (unlikely(skb->protocol == cpu_to_be16(ETH_P_PAE))) +- return; +- +- tid = ieee80211_get_tid(hdr); +- if (likely(sta->ampdu_mlme.tid_tx[tid])) +- return; +- +- ieee80211_start_tx_ba_session(pubsta, tid, 0); +-} +- +-static void + minstrel_ht_tx_status(void *priv, struct ieee80211_supported_band *sband, + void *priv_sta, struct ieee80211_tx_status *st) + { +@@ -1477,10 +1454,6 @@ minstrel_ht_get_rate(void *priv, struct + struct minstrel_priv *mp = priv; + u16 sample_idx; + +- if (!(info->flags & IEEE80211_TX_CTL_AMPDU) && +- !minstrel_ht_is_legacy_group(MI_RATE_GROUP(mi->max_prob_rate))) +- minstrel_aggr_check(sta, txrc->skb); +- + info->flags |= mi->tx_flags; + + #ifdef CPTCFG_MAC80211_DEBUGFS +@@ -1894,6 +1867,7 @@ static u32 minstrel_ht_get_expected_thro + + static const struct rate_control_ops mac80211_minstrel_ht = { + .name = "minstrel_ht", ++ .capa = RATE_CTRL_CAPA_AMPDU_TRIGGER, + .tx_status_ext = minstrel_ht_tx_status, + .get_rate = minstrel_ht_get_rate, + .rate_init = minstrel_ht_rate_init, +--- a/net/mac80211/tx.c ++++ b/net/mac80211/tx.c +@@ -3933,6 +3933,29 @@ void ieee80211_txq_schedule_start(struct + } + EXPORT_SYMBOL(ieee80211_txq_schedule_start); + ++static void ++ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata, ++ struct sta_info *sta, ++ struct sk_buff *skb) ++{ ++ struct rate_control_ref *ref = sdata->local->rate_ctrl; ++ u16 tid; ++ ++ if (!ref || !(ref->ops->capa & RATE_CTRL_CAPA_AMPDU_TRIGGER)) ++ return; ++ ++ if (!sta || !sta->sta.ht_cap.ht_supported || ++ !sta->sta.wme || skb_get_queue_mapping(skb) == IEEE80211_AC_VO || ++ skb->protocol == sdata->control_port_protocol) ++ return; ++ ++ tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK; ++ if (likely(sta->ampdu_mlme.tid_tx[tid])) ++ return; ++ ++ ieee80211_start_tx_ba_session(&sta->sta, tid, 0); ++} ++ + void __ieee80211_subif_start_xmit(struct sk_buff *skb, + struct net_device *dev, + u32 info_flags, +@@ -3963,6 +3986,8 @@ void __ieee80211_subif_start_xmit(struct + skb_get_hash(skb); + } + ++ ieee80211_aggr_check(sdata, sta, skb); ++ + if (sta) { + struct ieee80211_fast_tx *fast_tx; + +@@ -4226,6 +4251,8 @@ static void ieee80211_8023_xmit(struct i + + memset(info, 0, sizeof(*info)); + ++ ieee80211_aggr_check(sdata, sta, skb); ++ + tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK; + tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]); + if (tid_tx) { |