This is a note to let you know that I've just added the patch titled
wifi: mt76: mt7996: fix definition of tx descriptor
to the 6.13-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-mt7996-fix-definition-of-tx-descriptor.patch
and it can be found in the queue-6.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8775e95b1db48abadb96b55e605d920dd6aa28e8
Author: Benjamin Lin <benjamin-jw.lin@xxxxxxxxxxxx>
Date: Tue Jan 14 18:10:23 2025 +0800
wifi: mt76: mt7996: fix definition of tx descriptor
[ Upstream commit 14749fe2ed360c92c1a2a76dac0b77f759234981 ]
For mt7992 chipsets, the definition of TXD.DW6.BIT10~15 has different
interpretations on different frame types. Driver only needs to fill
MSDU_CNT for non-management frames.
Fixes: 408566db8cad ("wifi: mt76: connac: add new definition of tx descriptor")
Co-developed-by: Shayne Chen <shayne.chen@xxxxxxxxxxxx>
Signed-off-by: Shayne Chen <shayne.chen@xxxxxxxxxxxx>
Signed-off-by: Benjamin Lin <benjamin-jw.lin@xxxxxxxxxxxx>
Link: https://patch.msgid.link/20250114101026.3587702-6-shayne.chen@xxxxxxxxxxxx
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
index 0d21414e2c884..f590902fdeea3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
@@ -819,6 +819,7 @@ void mt7996_mac_write_txwi(struct mt7996_dev *dev, __le32 *txwi,
struct ieee80211_key_conf *key, int pid,
enum mt76_txq_id qid, u32 changed)
{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_vif *vif = info->control.vif;
u8 band_idx = (info->hw_queue & MT_TX_HW_QUEUE_PHY) >> 2;
@@ -886,8 +887,9 @@ void mt7996_mac_write_txwi(struct mt7996_dev *dev, __le32 *txwi,
val = MT_TXD6_DIS_MAT | MT_TXD6_DAS;
if (is_mt7996(&dev->mt76))
val |= FIELD_PREP(MT_TXD6_MSDU_CNT, 1);
- else
+ else if (is_8023 || !ieee80211_is_mgmt(hdr->frame_control))
val |= FIELD_PREP(MT_TXD6_MSDU_CNT_V2, 1);
+
txwi[6] = cpu_to_le32(val);
txwi[7] = 0;
@@ -897,7 +899,6 @@ void mt7996_mac_write_txwi(struct mt7996_dev *dev, __le32 *txwi,
mt7996_mac_write_txwi_80211(dev, txwi, skb, key);
if (txwi[1] & cpu_to_le32(MT_TXD1_FIXED_RATE)) {
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
bool mcast = ieee80211_is_data(hdr->frame_control) &&
is_multicast_ether_addr(hdr->addr1);
u8 idx = MT7996_BASIC_RATES_TBL;
