This is a note to let you know that I've just added the patch titled
wifi: mt76: mt7915: rework tx bytes counting when WED is active
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-mt76-mt7915-rework-tx-bytes-counting-when-wed-i.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 52cb1046c8b4b1016e493d3a27858ed89e19cce4
Author: Peter Chiu <chui-hao.chiu@xxxxxxxxxxxx>
Date: Wed May 10 12:53:18 2023 +0800
wifi: mt76: mt7915: rework tx bytes counting when WED is active
[ 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@xxxxxxxxxxxx>
Signed-off-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx>
Signed-off-by: Peter Chiu <chui-hao.chiu@xxxxxxxxxxxx>
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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);
