6.4-stable review patch. If anyone has any objections, please let me know.
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From: Peter Chiu chui-hao.chiu@mediatek.com
[ Upstream commit f39d499345dddb8382986fd5a2a0e84a63b1a6d5 ]
Concurrent binding/non-binding skbs could be handled anywhere which leads to mixed byte counting, so switch to use PPDU TxS reporting regardless Tx paths when WED is active.
Fixes: 43eaa3689507 ("wifi: mt76: add PPDU based TxS support for WED device") Co-developed-by: Ryder Lee ryder.lee@mediatek.com Signed-off-by: Ryder Lee ryder.lee@mediatek.com Signed-off-by: Peter Chiu chui-hao.chiu@mediatek.com Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- .../wireless/mediatek/mt76/mt76_connac_mac.c | 2 -- .../net/wireless/mediatek/mt76/mt7915/init.c | 6 ++++ .../net/wireless/mediatek/mt76/mt7915/mmio.c | 30 ++----------------- drivers/net/wireless/mediatek/mt76/tx.c | 9 +++++- 4 files changed, 16 insertions(+), 31 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c index 49b2b1f3ffa87..e415ac5e321f1 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c @@ -522,8 +522,6 @@ void mt76_connac2_mac_write_txwi(struct mt76_dev *dev, __le32 *txwi, q_idx = wmm_idx * MT76_CONNAC_MAX_WMM_SETS + mt76_connac_lmac_mapping(skb_get_queue_mapping(skb));
- /* counting non-offloading skbs */ - wcid->stats.tx_bytes += skb->len; /* mt7915 WA only counts WED path */ if (is_mt7915(dev) && mtk_wed_device_active(&dev->mmio.wed)) wcid->stats.tx_packets++; diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c index ac2049f49bb38..927a98a315ae8 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -499,6 +499,12 @@ mt7915_mac_init_band(struct mt7915_dev *dev, u8 band) set = FIELD_PREP(MT_WTBLOFF_TOP_RSCR_RCPI_MODE, 0) | FIELD_PREP(MT_WTBLOFF_TOP_RSCR_RCPI_PARAM, 0x3); mt76_rmw(dev, MT_WTBLOFF_TOP_RSCR(band), mask, set); + + /* MT_TXD5_TX_STATUS_HOST (MPDU format) has higher priority than + * MT_AGG_ACR_PPDU_TXS2H (PPDU format) even though ACR bit is set. + */ + if (mtk_wed_device_active(&dev->mt76.mmio.wed)) + mt76_set(dev, MT_AGG_ACR4(band), MT_AGG_ACR_PPDU_TXS2H); }
static void diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c index 45f3558bf31c1..2fa059af23ded 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c @@ -545,8 +545,6 @@ static u32 mt7915_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val) static int mt7915_mmio_wed_offload_enable(struct mtk_wed_device *wed) { struct mt7915_dev *dev; - struct mt7915_phy *phy; - int ret;
dev = container_of(wed, struct mt7915_dev, mt76.mmio.wed);
@@ -554,43 +552,19 @@ static int mt7915_mmio_wed_offload_enable(struct mtk_wed_device *wed) dev->mt76.token_size = wed->wlan.token_start; spin_unlock_bh(&dev->mt76.token_lock);
- ret = wait_event_timeout(dev->mt76.tx_wait, - !dev->mt76.wed_token_count, HZ); - if (!ret) - return -EAGAIN; - - phy = &dev->phy; - mt76_set(dev, MT_AGG_ACR4(phy->mt76->band_idx), MT_AGG_ACR_PPDU_TXS2H); - - phy = dev->mt76.phys[MT_BAND1] ? dev->mt76.phys[MT_BAND1]->priv : NULL; - if (phy) - mt76_set(dev, MT_AGG_ACR4(phy->mt76->band_idx), - MT_AGG_ACR_PPDU_TXS2H); - - return 0; + return !wait_event_timeout(dev->mt76.tx_wait, + !dev->mt76.wed_token_count, HZ); }
static void mt7915_mmio_wed_offload_disable(struct mtk_wed_device *wed) { struct mt7915_dev *dev; - struct mt7915_phy *phy;
dev = container_of(wed, struct mt7915_dev, mt76.mmio.wed);
spin_lock_bh(&dev->mt76.token_lock); dev->mt76.token_size = MT7915_TOKEN_SIZE; spin_unlock_bh(&dev->mt76.token_lock); - - /* MT_TXD5_TX_STATUS_HOST (MPDU format) has higher priority than - * MT_AGG_ACR_PPDU_TXS2H (PPDU format) even though ACR bit is set. - */ - phy = &dev->phy; - mt76_clear(dev, MT_AGG_ACR4(phy->mt76->band_idx), MT_AGG_ACR_PPDU_TXS2H); - - phy = dev->mt76.phys[MT_BAND1] ? dev->mt76.phys[MT_BAND1]->priv : NULL; - if (phy) - mt76_clear(dev, MT_AGG_ACR4(phy->mt76->band_idx), - MT_AGG_ACR_PPDU_TXS2H); }
static void mt7915_mmio_wed_release_rx_buf(struct mtk_wed_device *wed) diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c index 72b3ec715e47a..e9b9728458a9b 100644 --- a/drivers/net/wireless/mediatek/mt76/tx.c +++ b/drivers/net/wireless/mediatek/mt76/tx.c @@ -121,6 +121,7 @@ int mt76_tx_status_skb_add(struct mt76_dev *dev, struct mt76_wcid *wcid, struct sk_buff *skb) { + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct mt76_tx_cb *cb = mt76_tx_skb_cb(skb); int pid; @@ -134,8 +135,14 @@ mt76_tx_status_skb_add(struct mt76_dev *dev, struct mt76_wcid *wcid, return MT_PACKET_ID_NO_ACK;
if (!(info->flags & (IEEE80211_TX_CTL_REQ_TX_STATUS | - IEEE80211_TX_CTL_RATE_CTRL_PROBE))) + IEEE80211_TX_CTL_RATE_CTRL_PROBE))) { + if (mtk_wed_device_active(&dev->mmio.wed) && + ((info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) || + ieee80211_is_data(hdr->frame_control))) + return MT_PACKET_ID_WED; + return MT_PACKET_ID_NO_SKB; + }
spin_lock_bh(&dev->status_lock);