Return-path: Received: from mail-lf0-f68.google.com ([209.85.215.68]:37178 "EHLO mail-lf0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751562AbdIQTkf (ORCPT ); Sun, 17 Sep 2017 15:40:35 -0400 Received: by mail-lf0-f68.google.com with SMTP id q132so3528966lfe.4 for ; Sun, 17 Sep 2017 12:40:34 -0700 (PDT) From: Erik Stromdahl To: kvalo@qca.qualcomm.com, linux-wireless@vger.kernel.org, ath10k@lists.infradead.org Cc: Erik Stromdahl Subject: [RFC v3 11/11] ath10k: remove htt pending TX count for high latency Date: Sun, 17 Sep 2017 21:40:13 +0200 Message-Id: <20170917194013.8658-12-erik.stromdahl@gmail.com> (sfid-20170917_214038_527776_717AA1A3) In-Reply-To: <20170917194013.8658-1-erik.stromdahl@gmail.com> References: <20170917194013.8658-1-erik.stromdahl@gmail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: 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 --- drivers/net/wireless/ath/ath10k/htt_tx.c | 6 ++++++ 1 file changed, 6 insertions(+) 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) -- 2.14.1