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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Sean Wang <sean.wang@mediatek.com>,
        Leon Yen <Leon.Yen@mediatek.com>,
        Deren Wu <deren.wu@mediatek.com>,
        Lorenzo Bianconi <lorenzo@kernel.org>,
        Felix Fietkau <nbd@nbd.name>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.16 0540/1017] mt76: mt7921s: fix missing fc type/sub-type for 802.11 pkts
Date:   Tue,  5 Apr 2022 09:24:13 +0200
Message-Id: <20220405070410.318118777@linuxfoundation.org>
In-Reply-To: <20220405070354.155796697@linuxfoundation.org>
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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