From e63db6d35f79c1434139db103e6373500da253cf Mon Sep 17 00:00:00 2001 From: Ben Greear Date: Wed, 4 Aug 2021 06:43:33 -0700 Subject: [PATCH] mt76: mt7915: fix he_mcs capabilities for 160mhz At 160, this chip can only do 2x2 NSS. Fix the features accordingly, verified it shows up properly in iw phy foo info now. Signed-off-by: Ben Greear Signed-off-by: Felix Fietkau --- drivers/net/wireless/mediatek/mt76/mt7915/init.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c index bfe1345..a5b871e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -646,12 +646,19 @@ mt7915_init_he_caps(struct mt7915_phy *phy, enum nl80211_band band, { int i, idx = 0, nss = hweight8(phy->mt76->chainmask); u16 mcs_map = 0; + u16 mcs_map_160 = 0; for (i = 0; i < 8; i++) { if (i < nss) mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2)); else mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2)); + + /* Can do 1/2 of NSS streams in 160Mhz mode. */ + if (i < nss / 2) + mcs_map_160 |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2)); + else + mcs_map_160 |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2)); } for (i = 0; i < NUM_NL80211_IFTYPES; i++) { @@ -753,10 +760,10 @@ mt7915_init_he_caps(struct mt7915_phy *phy, enum nl80211_band band, he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map); he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map); - he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map); - he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map); - he_mcs->rx_mcs_80p80 = cpu_to_le16(mcs_map); - he_mcs->tx_mcs_80p80 = cpu_to_le16(mcs_map); + he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map_160); + he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map_160); + he_mcs->rx_mcs_80p80 = cpu_to_le16(mcs_map_160); + he_mcs->tx_mcs_80p80 = cpu_to_le16(mcs_map_160); mt7915_set_stream_he_txbf_caps(he_cap, i, nss); -- 2.7.4