wifi: mt76: mt7996: add EHT capability init

Add EHT mac and phy capability init for mt7996 chipsets.
Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Co-developed-by: MeiChia Chiu <meichia.chiu@mediatek.com>
Signed-off-by: MeiChia Chiu <meichia.chiu@mediatek.com>
Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7996/init.c

@@ -152,10 +152,12 @@ mt7996_init_wiphy(struct ieee80211_hw *hw)
 	struct mt7996_phy *phy = mt7996_hw_phy(hw);
 	struct mt76_dev *mdev = &phy->dev->mt76;
 	struct wiphy *wiphy = hw->wiphy;
+	u16 max_subframes = phy->dev->has_eht ? IEEE80211_MAX_AMPDU_BUF_EHT :
+						IEEE80211_MAX_AMPDU_BUF_HE;
 
 	hw->queues = 4;
-	hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
-	hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
+	hw->max_rx_aggregation_subframes = max_subframes;
+	hw->max_tx_aggregation_subframes = max_subframes;
 	hw->netdev_features = NETIF_F_RXCSUM;
 
 	hw->radiotap_timestamp.units_pos =
@@ -213,7 +215,7 @@ mt7996_init_wiphy(struct ieee80211_hw *hw)
 
 	mt76_set_stream_caps(phy->mt76, true);
 	mt7996_set_stream_vht_txbf_caps(phy);
-	mt7996_set_stream_he_caps(phy);
+	mt7996_set_stream_he_eht_caps(phy);
 
 	wiphy->available_antennas_rx = phy->mt76->antenna_mask;
 	wiphy->available_antennas_tx = phy->mt76->antenna_mask;
@@ -699,7 +701,102 @@ mt7996_init_he_caps(struct mt7996_phy *phy, enum nl80211_band band,
 }
 
 static void
-__mt7996_set_stream_he_caps(struct mt7996_phy *phy,
+mt7996_init_eht_caps(struct mt7996_phy *phy, enum nl80211_band band,
+		     struct ieee80211_sband_iftype_data *data,
+		     enum nl80211_iftype iftype)
+{
+	struct ieee80211_sta_eht_cap *eht_cap = &data->eht_cap;
+	struct ieee80211_eht_cap_elem_fixed *eht_cap_elem = &eht_cap->eht_cap_elem;
+	struct ieee80211_eht_mcs_nss_supp *eht_nss = &eht_cap->eht_mcs_nss_supp;
+	enum nl80211_chan_width width = phy->mt76->chandef.width;
+	int nss = hweight8(phy->mt76->antenna_mask);
+	int sts = hweight16(phy->mt76->chainmask);
+	u8 val;
+
+	if (!phy->dev->has_eht)
+		return;
+
+	eht_cap->has_eht = true;
+
+	eht_cap_elem->mac_cap_info[0] =
+		IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS |
+		IEEE80211_EHT_MAC_CAP0_OM_CONTROL;
+
+	eht_cap_elem->phy_cap_info[0] =
+		IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ |
+		IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI |
+		IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER |
+		IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
+
+	eht_cap_elem->phy_cap_info[0] |=
+		u8_encode_bits(u8_get_bits(sts - 1, BIT(0)),
+			       IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK);
+
+	eht_cap_elem->phy_cap_info[1] =
+		u8_encode_bits(u8_get_bits(sts - 1, GENMASK(2, 1)),
+			       IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK) |
+		u8_encode_bits(sts - 1,
+			       IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK) |
+		u8_encode_bits(sts - 1,
+			       IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK);
+
+	eht_cap_elem->phy_cap_info[2] =
+		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) |
+		u8_encode_bits(sts - 1, IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK);
+
+	eht_cap_elem->phy_cap_info[3] =
+		IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK |
+		IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK |
+		IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK |
+		IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK |
+		IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK |
+		IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK |
+		IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK;
+
+	eht_cap_elem->phy_cap_info[4] =
+		u8_encode_bits(min_t(int, sts - 1, 2),
+			       IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK);
+
+	eht_cap_elem->phy_cap_info[5] =
+		IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK |
+		u8_encode_bits(IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US,
+			       IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK) |
+		u8_encode_bits(u8_get_bits(0x11, GENMASK(1, 0)),
+			       IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK);
+
+	val = width == NL80211_CHAN_WIDTH_320 ? 0xf :
+	      width == NL80211_CHAN_WIDTH_160 ? 0x7 :
+	      width == NL80211_CHAN_WIDTH_80 ? 0x3 : 0x1;
+	eht_cap_elem->phy_cap_info[6] =
+		u8_encode_bits(u8_get_bits(0x11, GENMASK(4, 2)),
+			       IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK) |
+		u8_encode_bits(val, IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK);
+
+	eht_cap_elem->phy_cap_info[7] =
+		IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
+		IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
+		IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ |
+		IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
+		IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
+		IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ;
+
+	val = u8_encode_bits(nss, IEEE80211_EHT_MCS_NSS_RX) |
+	      u8_encode_bits(nss, IEEE80211_EHT_MCS_NSS_TX);
+#define SET_EHT_MAX_NSS(_bw, _val) do {				\
+		eht_nss->bw._##_bw.rx_tx_mcs9_max_nss = _val;	\
+		eht_nss->bw._##_bw.rx_tx_mcs11_max_nss = _val;	\
+		eht_nss->bw._##_bw.rx_tx_mcs13_max_nss = _val;	\
+	} while (0)
+
+	SET_EHT_MAX_NSS(80, val);
+	SET_EHT_MAX_NSS(160, val);
+	SET_EHT_MAX_NSS(320, val);
+#undef SET_EHT_MAX_NSS
+}
+
+static void
+__mt7996_set_stream_he_eht_caps(struct mt7996_phy *phy,
 				struct ieee80211_supported_band *sband,
 				enum nl80211_band band)
 {
@@ -720,6 +817,7 @@ __mt7996_set_stream_he_caps(struct mt7996_phy *phy,
 
 		data[n].types_mask = BIT(i);
 		mt7996_init_he_caps(phy, band, &data[n], i);
+		mt7996_init_eht_caps(phy, band, &data[n], i);
 
 		n++;
 	}
@@ -728,18 +826,18 @@ __mt7996_set_stream_he_caps(struct mt7996_phy *phy,
 	sband->n_iftype_data = n;
 }
 
-void mt7996_set_stream_he_caps(struct mt7996_phy *phy)
+void mt7996_set_stream_he_eht_caps(struct mt7996_phy *phy)
 {
 	if (phy->mt76->cap.has_2ghz)
-		__mt7996_set_stream_he_caps(phy, &phy->mt76->sband_2g.sband,
+		__mt7996_set_stream_he_eht_caps(phy, &phy->mt76->sband_2g.sband,
 						NL80211_BAND_2GHZ);
 
 	if (phy->mt76->cap.has_5ghz)
-		__mt7996_set_stream_he_caps(phy, &phy->mt76->sband_5g.sband,
+		__mt7996_set_stream_he_eht_caps(phy, &phy->mt76->sband_5g.sband,
 						NL80211_BAND_5GHZ);
 
 	if (phy->mt76->cap.has_6ghz)
-		__mt7996_set_stream_he_caps(phy, &phy->mt76->sband_6g.sband,
+		__mt7996_set_stream_he_eht_caps(phy, &phy->mt76->sband_6g.sband,
 						NL80211_BAND_6GHZ);
 }
 

drivers/net/wireless/mediatek/mt76/mt7996/main.c

@@ -890,7 +890,7 @@ mt7996_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
 
 	mt76_set_stream_caps(phy->mt76, true);
 	mt7996_set_stream_vht_txbf_caps(phy);
-	mt7996_set_stream_he_caps(phy);
+	mt7996_set_stream_he_eht_caps(phy);
 
 	mutex_unlock(&dev->mt76.mutex);
 

drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h

@@ -514,7 +514,7 @@ void mt7996_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps);
 void mt7996_stats_work(struct work_struct *work);
 int mt76_dfs_start_rdd(struct mt7996_dev *dev, bool force);
 int mt7996_dfs_init_radar_detector(struct mt7996_phy *phy);
-void mt7996_set_stream_he_caps(struct mt7996_phy *phy);
+void mt7996_set_stream_he_eht_caps(struct mt7996_phy *phy);
 void mt7996_set_stream_vht_txbf_caps(struct mt7996_phy *phy);
 void mt7996_update_channel(struct mt76_phy *mphy);
 int mt7996_init_debugfs(struct mt7996_phy *phy);