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Thu, 26 Mar 2026 17:12:36 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface From: Javier Tia Date: Thu, 26 Mar 2026 15:12:29 -0600 Subject: [PATCH v4 5/9] wifi: mt76: mt7925: advertise EHT 320MHz capabilities for 6GHz band Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260326-mt7927-wifi-support-v4-v4-5-8ab465addcfe@jetm.me> To: Felix Fietkau , Lorenzo Bianconi , Ryder Lee , Shayne Chen , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , Ming Yen Hsieh , Deren Wu Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Marcin FM , Cristian-Florin Radoi , George Salukvadze , Evgeny Kapusta <3193631@gmail.com>, Samu Toljamo , Ariel Rosenfeld , Chapuis Dario , =?utf-8?q?Thibaut_Fran=C3=A7ois?= , =?utf-8?q?=E5=BC=A0=E6=97=AD=E6=B6=B5?= X-Mailer: b4 0.15.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=4614; i=floss@jetm.me; h=from:subject:message-id; bh=7sKfSMgYBAE2lHy4UYHmoX7t5FfxzJIRdxoV8d7AnaQ=; b=owEB7QES/pANAwAKAbXuwwuoZ3cfAcsmYgBpxaE4FpgpvSgVsJlA1KXsjKuNHsYnoCuE/gDkz 7V15J/XoMGJAbMEAAEKAB0WIQSbE7ILzw7eI0VKk8m17sMLqGd3HwUCacWhOAAKCRC17sMLqGd3 H2yJC/9ok/ueHwBJgN/EQwe1zahjF/ofm+2BtKnzj6N9qcsh1q1yGOjnuBsT2tVOhl50u6n3adi qp0341r4RtDTEGrgzIKWyrhYzbc15N06rRL1USHzesggBWwRG/AGudHwkS/ufUiik0sPomAmPe6 UuIVoBfpeS3LUDrq5O8hMayHQ8Dzyzefy4PJxFg/kYZZAKSBva2yO/6JU4UzL1DPLm55PgjjcKm nCUndD4VCTPFf+HFnlrXMbFa7F9NAa7X2d5qNquVaouOhBCF0BGoqYG67pC6V7cuIsy9Y6q72lN kOQvO7p+W9BUFJ8wsq5YF2e4KDnwyS4a5qg3EYLBQam77y1N386cXjaFb0oYzV/yqcNbqOHuGkF rx2z8VbcWBj2KPaGFxVL/rxQcVLnN8J/1U4VO1hICEvHpWaOF8h89Ex0C0SAHEkU9zpFTHXU0oM oOOOF3/u/zYdDVtFhaPEVJHYTp8IWkLTbvYM8ekDvAK4rwQLVPGWPJRb/UmpoiPkKeW7g= X-Developer-Key: i=floss@jetm.me; a=openpgp; fpr=9B13B20BCF0EDE23454A93C9B5EEC30BA867771F In-Reply-To: <20260326-mt7927-wifi-support-v4-v4-0-8ab465addcfe@jetm.me> References: <20260326-mt7927-wifi-support-v4-v4-0-8ab465addcfe@jetm.me> mt7925_init_eht_caps() only populates EHT MCS/NSS maps for BW <=3D 80 and BW =3D 160, but never sets BW =3D 320. This means iw phy shows no 320MHz MCS map entries even though the hardware supports 320MHz operation in the 6GHz band. Add the missing 320MHz capability bits for 6GHz: - PHY_CAP0: IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ - PHY_CAP1: beamformee SS for 320MHz - PHY_CAP2: sounding dimensions for 320MHz - PHY_CAP6: MCS15 support for 320MHz width - MCS/NSS: populate bw._320 maps for 6GHz band Introduce is_320mhz_supported() to gate 320MHz on MT7927 only, since MT7925 does not support 320MHz operation. Tested-by: Marcin FM Tested-by: Cristian-Florin Radoi Tested-by: George Salukvadze Tested-by: Evgeny Kapusta <3193631@gmail.com> Tested-by: Samu Toljamo Tested-by: Ariel Rosenfeld Tested-by: Chapuis Dario Tested-by: Thibaut Fran=C3=A7ois Tested-by: =E5=BC=A0=E6=97=AD=E6=B6=B5 Signed-off-by: Javier Tia --- drivers/net/wireless/mediatek/mt76/mt76_connac.h | 5 +++++ drivers/net/wireless/mediatek/mt76/mt7925/main.c | 22 ++++++++++++++++++++= +- 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac.h b/drivers/net= /wireless/mediatek/mt76/mt76_connac.h index 813d61bffc2c..393a7952f86b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac.h +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac.h @@ -177,6 +177,11 @@ static inline bool is_mt7925(struct mt76_dev *dev) return mt76_chip(dev) =3D=3D 0x7925; } =20 +static inline bool is_320mhz_supported(struct mt76_dev *dev) +{ + return mt76_chip(dev) =3D=3D 0x7927; +} + static inline bool is_mt7920(struct mt76_dev *dev) { return mt76_chip(dev) =3D=3D 0x7920; diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/main.c b/drivers/net= /wireless/mediatek/mt76/mt7925/main.c index f128a198f81d..cfce851a94e2 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/main.c @@ -183,6 +183,10 @@ mt7925_init_eht_caps(struct mt792x_phy *phy, enum nl80= 211_band band, IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER | IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; =20 + if (band =3D=3D NL80211_BAND_6GHZ && is_320mhz_supported(&phy->dev->mt76)) + eht_cap_elem->phy_cap_info[0] |=3D + IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ; + eht_cap_elem->phy_cap_info[0] |=3D u8_encode_bits(u8_get_bits(sts - 1, BIT(0)), IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK); @@ -193,10 +197,20 @@ mt7925_init_eht_caps(struct mt792x_phy *phy, enum nl8= 0211_band band, u8_encode_bits(sts - 1, IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK); =20 + if (band =3D=3D NL80211_BAND_6GHZ && is_320mhz_supported(&phy->dev->mt76)) + eht_cap_elem->phy_cap_info[1] |=3D + u8_encode_bits(sts - 1, + IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK); + eht_cap_elem->phy_cap_info[2] =3D u8_encode_bits(sts - 1, IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK) | u8_encode_bits(sts - 1, IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK); =20 + if (band =3D=3D NL80211_BAND_6GHZ && is_320mhz_supported(&phy->dev->mt76)) + eht_cap_elem->phy_cap_info[2] |=3D + u8_encode_bits(sts - 1, + IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK); + eht_cap_elem->phy_cap_info[3] =3D IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK | IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK | @@ -217,7 +231,8 @@ mt7925_init_eht_caps(struct mt792x_phy *phy, enum nl802= 11_band band, u8_encode_bits(u8_get_bits(0x11, GENMASK(1, 0)), IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK); =20 - val =3D width =3D=3D NL80211_CHAN_WIDTH_160 ? 0x7 : + val =3D width =3D=3D NL80211_CHAN_WIDTH_320 ? 0xf : + width =3D=3D NL80211_CHAN_WIDTH_160 ? 0x7 : width =3D=3D NL80211_CHAN_WIDTH_80 ? 0x3 : 0x1; eht_cap_elem->phy_cap_info[6] =3D u8_encode_bits(u8_get_bits(0x11, GENMASK(4, 2)), @@ -239,6 +254,11 @@ mt7925_init_eht_caps(struct mt792x_phy *phy, enum nl80= 211_band band, eht_nss->bw._160.rx_tx_mcs9_max_nss =3D val; eht_nss->bw._160.rx_tx_mcs11_max_nss =3D val; eht_nss->bw._160.rx_tx_mcs13_max_nss =3D val; + if (band =3D=3D NL80211_BAND_6GHZ && is_320mhz_supported(&phy->dev->mt76)= ) { + eht_nss->bw._320.rx_tx_mcs9_max_nss =3D val; + eht_nss->bw._320.rx_tx_mcs11_max_nss =3D val; + eht_nss->bw._320.rx_tx_mcs13_max_nss =3D val; + } } =20 int mt7925_init_mlo_caps(struct mt792x_phy *phy) --=20 2.53.0