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Date:   Wed, 9 Feb 2022 10:50:10 +0100
From:   Lorenzo Bianconi <lorenzo@kernel.org>
To:     Deren Wu <Deren.Wu@mediatek.com>
Cc:     Felix Fietkau <nbd@nbd.name>,
        Lorenzo Bianconi <lorenzo.bianconi@redhat.com>,
        Sean Wang <sean.wang@mediatek.com>,
        Soul Huang <Soul.Huang@mediatek.com>,
        YN Chen <YN.Chen@mediatek.com>,
        Leon Yen <Leon.Yen@mediatek.com>,
        Eric-SY Chang <Eric-SY.Chang@mediatek.com>,
        KM Lin <km.lin@mediatek.com>,
        Robin Chiu <robin.chiu@mediatek.com>,
        CH Yeh <ch.yeh@mediatek.com>, Posh Sun <posh.sun@mediatek.com>,
        Eric Liang <Eric.Liang@mediatek.com>,
        Stella Chang <Stella.Chang@mediatek.com>,
        Evelyn Tsai <evelyn.tsai@mediatek.com>,
        Ryder Lee <ryder.lee@mediatek.com>,
        Shayne Chen <shayne.chen@mediatek.com>,
        linux-wireless <linux-wireless@vger.kernel.org>,
        linux-mediatek <linux-mediatek@lists.infradead.org>
Subject: Re: [PATCH v2] mt76: mt7921s: fix missing fc type/sub-type for
 802.11 pkts
Message-ID: <YgOOUlK3ecD4nnP4@lore-desk>
References: <41839f21510756e08919ae7930212817e37f40f0.1644370695.git.deren.wu@mediatek.com>
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> From: Deren Wu <deren.wu@mediatek.com>
>=20
> For non-mmio devices, should set fc values to proper txwi config
>=20
> 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>

> ---
> v2: remove is_mmio which is just used once
> ---
>  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(-)
>=20
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/ne=
t/wireless/mediatek/mt76/mt7921/mac.c
> index d17558349a17..f0ebee670131 100644
> --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
> +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
> @@ -912,9 +912,15 @@ mt7921_mac_write_txwi_80211(struct mt7921_dev *dev, =
__le32 *txwi,
>  		txwi[3] |=3D cpu_to_le32(val);
>  	}
> =20
> -	val =3D FIELD_PREP(MT_TXD7_TYPE, fc_type) |
> -	      FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype);
> -	txwi[7] |=3D cpu_to_le32(val);
> +	if (mt76_is_mmio(&dev->mt76)) {
> +		val =3D FIELD_PREP(MT_TXD7_TYPE, fc_type) |
> +		      FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype);
> +		txwi[7] |=3D cpu_to_le32(val);
> +	} else {
> +		val =3D FIELD_PREP(MT_TXD8_L_TYPE, fc_type) |
> +		      FIELD_PREP(MT_TXD8_L_SUB_TYPE, fc_stype);
> +		txwi[8] |=3D cpu_to_le32(val);
> +	}
>  }
> =20
>  void mt7921_mac_write_txwi(struct mt7921_dev *dev, __le32 *txwi,
> diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.h b/drivers/ne=
t/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)
> =20
> +#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)
> --=20
> 2.18.0
>=20

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