[PATCH 5.16 0540/1017] mt76: mt7921s: fix missing fc type/sub-type for 802.11 pkts

Greg Kroah-Hartman
2022-04-05T12:42:38Z

From: Deren Wu <deren.wu@mediatek.com>

[ Upstream commit 355c060d5f38a784822d544e969121a273bcf545 ]

For non-mmio devices, should set fc values to proper txwi config

Fixes: 48fab5bbef40 ("mt76: mt7921: introduce mt7921s support")
Tested-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Leon Yen <Leon.Yen@mediatek.com>
Signed-off-by: Leon Yen <Leon.Yen@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 12 +++++++++---
drivers/net/wireless/mediatek/mt76/mt7921/mac.h | 3 +++
2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index ea5ae0fc8f54..57fd626b40da 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -836,9 +836,15 @@ mt7921_mac_write_txwi_80211(struct mt7921_dev *dev, __le32 *txwi,
txwi[3] |= cpu_to_le32(val);
}

- val = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
- FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype);
- txwi[7] |= cpu_to_le32(val);
+ if (mt76_is_mmio(&dev->mt76)) {
+ val = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
+ FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype);
+ txwi[7] |= cpu_to_le32(val);
+ } else {
+ val = FIELD_PREP(MT_TXD8_L_TYPE, fc_type) |
+ FIELD_PREP(MT_TXD8_L_SUB_TYPE, fc_stype);
+ txwi[8] |= cpu_to_le32(val);
+ }
}

void mt7921_mac_write_txwi(struct mt7921_dev *dev, __le32 *txwi,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.h b/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
index 544a1c33126a..12e1cf8abe6e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
@@ -284,6 +284,9 @@ enum tx_mcu_port_q_idx {
#define MT_TXD7_HW_AMSDU BIT(10)
#define MT_TXD7_TX_TIME GENMASK(9, 0)

+#define MT_TXD8_L_TYPE GENMASK(5, 4)
+#define MT_TXD8_L_SUB_TYPE GENMASK(3, 0)
+
#define MT_TX_RATE_STBC BIT(13)
#define MT_TX_RATE_NSS GENMASK(12, 10)
#define MT_TX_RATE_MODE GENMASK(9, 6)
--
2.34.1