[PATCH AUTOSEL 6.14 075/642] wifi: mt76: only mark tx-status-failed frames as ACKed on mt76x0/2

[Sasha Levin]

From: Felix Fietkau <nbd at nbd.name>

[ Upstream commit 0c5a89ceddc1728a40cb3313948401dd70e3c649 ]

The interrupt status polling is unreliable, which can cause status events
to get lost. On all newer chips, txs-timeout is an indication that the
packet was either never sent, or never acked.
Fixes issues with inactivity polling.

Link: https://patch.msgid.link/20250311103646.43346-6-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd at nbd.name>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt76.h       | 1 +
 drivers/net/wireless/mediatek/mt76/mt76x0/pci.c | 3 ++-
 drivers/net/wireless/mediatek/mt76/mt76x0/usb.c | 3 ++-
 drivers/net/wireless/mediatek/mt76/mt76x2/pci.c | 3 ++-
 drivers/net/wireless/mediatek/mt76/mt76x2/usb.c | 3 ++-
 drivers/net/wireless/mediatek/mt76/tx.c         | 3 ++-
 6 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 05651efb549ec..8714418f3906c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -491,6 +491,7 @@ struct mt76_hw_cap {
 #define MT_DRV_RX_DMA_HDR		BIT(3)
 #define MT_DRV_HW_MGMT_TXQ		BIT(4)
 #define MT_DRV_AMSDU_OFFLOAD		BIT(5)
+#define MT_DRV_IGNORE_TXS_FAILED	BIT(6)
 
 struct mt76_driver_ops {
 	u32 drv_flags;
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c b/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c
index b456ccd00d581..11c16d1fc70fc 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c
@@ -156,7 +156,8 @@ mt76x0e_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	static const struct mt76_driver_ops drv_ops = {
 		.txwi_size = sizeof(struct mt76x02_txwi),
 		.drv_flags = MT_DRV_TX_ALIGNED4_SKBS |
-			     MT_DRV_SW_RX_AIRTIME,
+			     MT_DRV_SW_RX_AIRTIME |
+			     MT_DRV_IGNORE_TXS_FAILED,
 		.survey_flags = SURVEY_INFO_TIME_TX,
 		.update_survey = mt76x02_update_channel,
 		.set_channel = mt76x0_set_channel,
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c
index b031c500b7415..90e5666c0857d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c
@@ -214,7 +214,8 @@ static int mt76x0u_probe(struct usb_interface *usb_intf,
 			 const struct usb_device_id *id)
 {
 	static const struct mt76_driver_ops drv_ops = {
-		.drv_flags = MT_DRV_SW_RX_AIRTIME,
+		.drv_flags = MT_DRV_SW_RX_AIRTIME |
+			     MT_DRV_IGNORE_TXS_FAILED,
 		.survey_flags = SURVEY_INFO_TIME_TX,
 		.update_survey = mt76x02_update_channel,
 		.set_channel = mt76x0_set_channel,
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c
index 727bfdd00b400..2303019670e2c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c
@@ -22,7 +22,8 @@ mt76x2e_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	static const struct mt76_driver_ops drv_ops = {
 		.txwi_size = sizeof(struct mt76x02_txwi),
 		.drv_flags = MT_DRV_TX_ALIGNED4_SKBS |
-			     MT_DRV_SW_RX_AIRTIME,
+			     MT_DRV_SW_RX_AIRTIME |
+			     MT_DRV_IGNORE_TXS_FAILED,
 		.survey_flags = SURVEY_INFO_TIME_TX,
 		.update_survey = mt76x02_update_channel,
 		.set_channel = mt76x2e_set_channel,
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c
index a4f4d12f904e7..84ef80ab4afbf 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c
@@ -30,7 +30,8 @@ static int mt76x2u_probe(struct usb_interface *intf,
 			 const struct usb_device_id *id)
 {
 	static const struct mt76_driver_ops drv_ops = {
-		.drv_flags = MT_DRV_SW_RX_AIRTIME,
+		.drv_flags = MT_DRV_SW_RX_AIRTIME |
+			     MT_DRV_IGNORE_TXS_FAILED,
 		.survey_flags = SURVEY_INFO_TIME_TX,
 		.update_survey = mt76x02_update_channel,
 		.set_channel = mt76x2u_set_channel,
diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c
index af0c50c983ec1..513916469ca2f 100644
--- a/drivers/net/wireless/mediatek/mt76/tx.c
+++ b/drivers/net/wireless/mediatek/mt76/tx.c
@@ -100,7 +100,8 @@ __mt76_tx_status_skb_done(struct mt76_dev *dev, struct sk_buff *skb, u8 flags,
 		return;
 
 	/* Tx status can be unreliable. if it fails, mark the frame as ACKed */
-	if (flags & MT_TX_CB_TXS_FAILED) {
+	if (flags & MT_TX_CB_TXS_FAILED &&
+	    (dev->drv->drv_flags & MT_DRV_IGNORE_TXS_FAILED)) {
 		info->status.rates[0].count = 0;
 		info->status.rates[0].idx = -1;
 		info->flags |= IEEE80211_TX_STAT_ACK;
-- 
2.39.5