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authorMichal Kazior <michal.kazior@tieto.com>2016-03-17 09:51:05 (GMT)
committerKalle Valo <kvalo@qca.qualcomm.com>2016-03-21 16:29:17 (GMT)
commit750eeed89cf3c466df302e4707491b015531e26c (patch)
tree33141fb0f44940559e038df702c129efc5fbc269 /drivers
parent9d71d47eed20f34620e54e29bcc90f959d5873b8 (diff)
downloadlinux-750eeed89cf3c466df302e4707491b015531e26c.tar.xz
ath10k: fix pull-push tx threshold handling
This prevents tx hangs or hiccups if pull-push supporting firmware defines per-txq thresholds or switches modes dynamically. Fixes: 299468782d94 ("ath10k: implement wake_tx_queue") Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath/ath10k/mac.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 1bc4bf1..ed00853 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3770,7 +3770,8 @@ void ath10k_mac_tx_push_pending(struct ath10k *ar)
/* Prevent aggressive sta/tid taking over tx queue */
max = 16;
- while (max--) {
+ ret = 0;
+ while (ath10k_mac_tx_can_push(hw, txq) && max--) {
ret = ath10k_mac_tx_push_txq(hw, txq);
if (ret < 0)
break;
@@ -4023,14 +4024,13 @@ static void ath10k_mac_op_wake_tx_queue(struct ieee80211_hw *hw,
struct ath10k *ar = hw->priv;
struct ath10k_txq *artxq = (void *)txq->drv_priv;
- if (ath10k_mac_tx_can_push(hw, txq)) {
- spin_lock_bh(&ar->txqs_lock);
- if (list_empty(&artxq->list))
- list_add_tail(&artxq->list, &ar->txqs);
- spin_unlock_bh(&ar->txqs_lock);
+ spin_lock_bh(&ar->txqs_lock);
+ if (list_empty(&artxq->list))
+ list_add_tail(&artxq->list, &ar->txqs);
+ spin_unlock_bh(&ar->txqs_lock);
+ if (ath10k_mac_tx_can_push(hw, txq))
tasklet_schedule(&ar->htt.txrx_compl_task);
- }
ath10k_htt_tx_txq_update(hw, txq);
}