00f64ed660
This backports encap offload support from upstream. On some ath10k devices there can be about 10% improvement on tx throughput. Users can turn it on by setting frame_mode=2. Signed-off-by: Zhijun You <hujy652@gmail.com>
70 lines
2.5 KiB
Diff
70 lines
2.5 KiB
Diff
From 2587d5198aa5adcbd8896aae4a2404dc13d48637 Mon Sep 17 00:00:00 2001
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From: Sergey Ryazanov <ryazanov.s.a@gmail.com>
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Date: Wed, 18 May 2022 10:27:26 +0300
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Subject: ath10k: improve tx status reporting
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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We use ieee80211_tx_status() to report each completed tx frame.
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Internally, this function calls sta_info_get_by_addrs(), what has a
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couple of drawbacks:
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1. additional station lookup causes a performance degradation;
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2. mac80211 can not properly account Ethernet encapsulated frames due
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to the inability to properly determine the destination (station) MAC
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address since ieee80211_tx_status() assumes the frame has a 802.11
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header.
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The latter is especially destructive if we want to use hardware frames
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encapsulation.
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To fix both of these issues, replace ieee80211_tx_status() with
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ieee80211_tx_status_ext() call and feed it station pointer from the tx
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queue associated with the transmitted frame.
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Tested-on: QCA9888 hw2.0 PCI 10.4-3.9.0.2-00131
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Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00157-QCARMSWPZ-1
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Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
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Tested-by: Oldřich Jedlička <oldium.pro@gmail.com> # TP-Link Archer C7 v4 & v5 (QCA9563 + QCA9880)
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Tested-by: Edward Matijevic <motolav@gmail.com> # TP-Link Archer C2600 (IPQ8064 + QCA9980 10.4.1.00030-1)
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Tested-by: Edward Matijevic <motolav@gmail.com> # QCA9377 PCI in Sta mode
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Tested-by: Zhijun You <hujy652@gmail.com> # NETGEAR R7800 (QCA9984 10.4-3.9.0.2-00159)
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Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
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Link: https://lore.kernel.org/r/20220516032519.29831-2-ryazanov.s.a@gmail.com
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---
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drivers/net/wireless/ath/ath10k/txrx.c | 15 ++++++++++++++-
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1 file changed, 14 insertions(+), 1 deletion(-)
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--- a/drivers/net/wireless/ath/ath10k/txrx.c
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+++ b/drivers/net/wireless/ath/ath10k/txrx.c
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@@ -43,6 +43,7 @@ out:
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int ath10k_txrx_tx_unref(struct ath10k_htt *htt,
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const struct htt_tx_done *tx_done)
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{
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+ struct ieee80211_tx_status status;
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struct ath10k *ar = htt->ar;
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struct device *dev = ar->dev;
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struct ieee80211_tx_info *info;
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@@ -128,7 +129,19 @@ int ath10k_txrx_tx_unref(struct ath10k_h
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info->status.is_valid_ack_signal = true;
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}
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- ieee80211_tx_status(htt->ar->hw, msdu);
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+ memset(&status, 0, sizeof(status));
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+ status.skb = msdu;
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+ status.info = info;
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+
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+ rcu_read_lock();
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+
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+ if (txq)
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+ status.sta = txq->sta;
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+
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+ ieee80211_tx_status_ext(htt->ar->hw, &status);
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+
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+ rcu_read_unlock();
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+
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/* we do not own the msdu anymore */
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return 0;
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