5.15-stable review patch. If anyone has any objections, please let me know.
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From: Felix Fietkau nbd@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@nbd.name Signed-off-by: Sasha Levin sashal@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 27f04fb2796d7..5a90fa556203f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -345,6 +345,7 @@ 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 b795e7245c075..3255f9c0ef71f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c @@ -151,7 +151,8 @@ 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, diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c index f2b2fa7338457..7a4d62bff28ff 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c @@ -209,7 +209,8 @@ 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, diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c b/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c index 5cd0379d86de8..4e369bd87c900 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, .tx_prepare_skb = mt76x02_tx_prepare_skb, diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c index 9369515f36a3a..09b01e09bcfe0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c @@ -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, diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c index 134a735a06329..3fbf0153d13ca 100644 --- a/drivers/net/wireless/mediatek/mt76/tx.c +++ b/drivers/net/wireless/mediatek/mt76/tx.c @@ -93,7 +93,8 @@ __mt76_tx_status_skb_done(struct mt76_dev *dev, struct sk_buff *skb, u8 flags, __skb_unlink(skb, &dev->status_list);
/* 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;