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wifi: mt76: only mark tx-status-failed frames as ACKed on mt76x0/2

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[ 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@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Felix Fietkau
2025-03-11 11:36:43 +01:00
committed by Greg Kroah-Hartman
parent 17e3ab067d
commit d9776ce173
6 changed files with 11 additions and 5 deletions
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1
drivers/net/wireless/mediatek/mt76/mt76.h
View File

@@ -439,6 +439,7 @@ 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;

3
drivers/net/wireless/mediatek/mt76/mt76x0/pci.c
View File

@@ -152,7 +152,8 @@ 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,
.tx_prepare_skb = mt76x02_tx_prepare_skb,

3
drivers/net/wireless/mediatek/mt76/mt76x0/usb.c
View File

@@ -210,7 +210,8 @@ 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,
.tx_prepare_skb = mt76x02u_tx_prepare_skb,

3
drivers/net/wireless/mediatek/mt76/mt76x2/pci.c
View File

@@ -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,
.tx_prepare_skb = mt76x02_tx_prepare_skb,

3
drivers/net/wireless/mediatek/mt76/mt76x2/usb.c
View File

@@ -29,7 +29,8 @@ 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,
.tx_prepare_skb = mt76x02u_tx_prepare_skb,

3
drivers/net/wireless/mediatek/mt76/tx.c
View File

@@ -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;