[RFC,v3,11/11] ath10k: remove htt pending TX count for high latency
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Message ID 20170917194013.8658-12-erik.stromdahl@gmail.com
State New
Headers show

Commit Message

Erik Stromdahl Sept. 17, 2017, 7:40 p.m. UTC
High latency chipsest does not seem to send any
HTT_T2H_MSG_TYPE_TX_COMPL_IND for outgoing frames.

This means that htt->num_pending_tx will never be
decremented and we will eventually hit the maximum
limit. All outgoing packets will then be discarded.

Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
---
 drivers/net/wireless/ath/ath10k/htt_tx.c | 6 ++++++
 1 file changed, 6 insertions(+)

Patch
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diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index 82d01139ff92..c74fc137ac67 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -153,6 +153,9 @@  void ath10k_htt_tx_txq_update(struct ieee80211_hw *hw,
 
 void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
 {
+	if (htt->ar->is_high_latency)
+		return;
+
 	lockdep_assert_held(&htt->tx_lock);
 
 	htt->num_pending_tx--;
@@ -162,6 +165,9 @@  void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
 
 int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt)
 {
+	if (htt->ar->is_high_latency)
+		return 0;
+
 	lockdep_assert_held(&htt->tx_lock);
 
 	if (htt->num_pending_tx >= htt->max_num_pending_tx)