36471ac3e4
Add a function to allow drivers to query the pending AQL airtime for a given txq, for both unicast and broadcast. This will be used for mt76 to limit buffering in AP mode for power-save stations. Signed-off-by: Felix Fietkau <nbd@nbd.name>
60 lines
1.8 KiB
Diff
60 lines
1.8 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Mon, 23 Mar 2026 10:14:22 +0000
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Subject: [PATCH] wifi: mac80211: add ieee80211_txq_aql_pending()
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Add a function to allow drivers to query the pending AQL airtime
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for a given txq, for both unicast and broadcast.
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This will be used for mt76 to limit buffering in AP mode for power-save
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stations.
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/include/net/mac80211.h
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+++ b/include/net/mac80211.h
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@@ -6603,6 +6603,17 @@ bool
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ieee80211_txq_airtime_check(struct ieee80211_hw *hw, struct ieee80211_txq *txq);
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/**
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+ * ieee80211_txq_aql_pending - get pending AQL airtime for a txq
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+ *
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+ * @hw: pointer obtained from ieee80211_alloc_hw()
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+ * @txq: pointer obtained from station or virtual interface
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+ *
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+ * Return: pending airtime (in usec) for the given txq.
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+ */
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+u32 ieee80211_txq_aql_pending(struct ieee80211_hw *hw,
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+ struct ieee80211_txq *txq);
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+
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+/**
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* ieee80211_iter_keys - iterate keys programmed into the device
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* @hw: pointer obtained from ieee80211_alloc_hw()
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* @vif: virtual interface to iterate, may be %NULL for all
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--- a/net/mac80211/tx.c
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+++ b/net/mac80211/tx.c
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@@ -4185,6 +4185,24 @@ bool ieee80211_txq_airtime_check(struct
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}
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EXPORT_SYMBOL(ieee80211_txq_airtime_check);
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+u32 ieee80211_txq_aql_pending(struct ieee80211_hw *hw,
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+ struct ieee80211_txq *txq)
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+{
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+ struct ieee80211_local *local = hw_to_local(hw);
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+ struct sta_info *sta;
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+
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+ if (!txq->sta)
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+ return atomic_read(&local->aql_bc_pending_airtime);
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+
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+ sta = container_of(txq->sta, struct sta_info, sta);
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+
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+ if (unlikely(txq->tid == IEEE80211_NUM_TIDS))
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+ return 0;
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+
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+ return atomic_read(&sta->airtime[txq->ac].aql_tx_pending);
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+}
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+EXPORT_SYMBOL(ieee80211_txq_aql_pending);
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+
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static bool
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ieee80211_txq_schedule_airtime_check(struct ieee80211_local *local, u8 ac)
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{
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