2024-03-20 11:09:56

by Shayne Chen

[permalink] [raw]
Subject: [PATCH 02/10] wifi: mt76: mt7996: disable rx header translation for BMC entry

When a BMC wtbl of station interface is correctly set with peer address,
HW will do rx header translation for broadcast data packets, which makes
mac80211 unable to find the corresponding ieee80211_sta and drop the
packets. To fix this, disable HW rx header translation for BMC entry.

Signed-off-by: Shayne Chen <[email protected]>
---
drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
index df6be2091615..fd0cc945b22a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
@@ -1778,10 +1778,10 @@ mt7996_mcu_sta_hdr_trans_tlv(struct mt7996_dev *dev, struct sk_buff *skb,
else
hdr_trans->from_ds = true;

- wcid = (struct mt76_wcid *)sta->drv_priv;
- if (!wcid)
+ if (!sta)
return;

+ wcid = (struct mt76_wcid *)sta->drv_priv;
hdr_trans->dis_rx_hdr_tran = !test_bit(MT_WCID_FLAG_HDR_TRANS, &wcid->flags);
if (test_bit(MT_WCID_FLAG_4ADDR, &wcid->flags)) {
hdr_trans->to_ds = true;
@@ -2154,6 +2154,9 @@ int mt7996_mcu_add_sta(struct mt7996_dev *dev, struct ieee80211_vif *vif,
if (!enable)
goto out;

+ /* starec hdr trans */
+ mt7996_mcu_sta_hdr_trans_tlv(dev, skb, vif, sta);
+
/* tag order is in accordance with firmware dependency. */
if (sta) {
/* starec hdrt mode */
@@ -2178,8 +2181,6 @@ int mt7996_mcu_add_sta(struct mt7996_dev *dev, struct ieee80211_vif *vif,
mt7996_mcu_sta_muru_tlv(dev, skb, vif, sta);
/* starec bfee */
mt7996_mcu_sta_bfee_tlv(dev, skb, vif, sta);
- /* starec hdr trans */
- mt7996_mcu_sta_hdr_trans_tlv(dev, skb, vif, sta);
}

ret = mt7996_mcu_add_group(dev, vif, sta);
--
2.39.2