Driver should not directly write WTBL to prevent overwritten issues. With this fix, when driver needs to adjust its behavior for compatibility, especially concerning older 11g/n devices, by enabling or disabling CTS protection frames, often for hidden SSIDs or to manage legacy clients. Fixes: e34235ccc5e3 ("wifi: mt76: mt7615: enable use_cts_prot support") Signed-off-by: Ryder Lee --- .../net/wireless/mediatek/mt76/mt7615/mac.c | 15 ------ .../net/wireless/mediatek/mt76/mt7615/main.c | 7 +-- .../net/wireless/mediatek/mt76/mt7615/mcu.c | 47 +++++++++++++++++++ .../wireless/mediatek/mt76/mt7615/mt7615.h | 5 +- .../net/wireless/mediatek/mt76/mt7615/regs.h | 2 - 5 files changed, 53 insertions(+), 23 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c index bd56cdb02..d3478390f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c @@ -1167,21 +1167,6 @@ void mt7615_mac_set_rates(struct mt7615_phy *phy, struct mt7615_sta *sta, } EXPORT_SYMBOL_GPL(mt7615_mac_set_rates); -void mt7615_mac_enable_rtscts(struct mt7615_dev *dev, - struct ieee80211_vif *vif, bool enable) -{ - struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; - u32 addr; - - addr = mt7615_mac_wtbl_addr(dev, mvif->sta.wcid.idx) + 3 * 4; - - if (enable) - mt76_set(dev, addr, MT_WTBL_W3_RTS); - else - mt76_clear(dev, addr, MT_WTBL_W3_RTS); -} -EXPORT_SYMBOL_GPL(mt7615_mac_enable_rtscts); - static int mt7615_mac_wtbl_update_key(struct mt7615_dev *dev, struct mt76_wcid *wcid, struct ieee80211_key_conf *key, diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c index 727266892..fc619acbb 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c @@ -583,9 +583,6 @@ static void mt7615_bss_info_changed(struct ieee80211_hw *hw, } } - if (changed & BSS_CHANGED_ERP_CTS_PROT) - mt7615_mac_enable_rtscts(dev, vif, info->use_cts_prot); - if (changed & BSS_CHANGED_BEACON_ENABLED && info->enable_beacon) { mt7615_mcu_add_bss_info(phy, vif, NULL, true); mt7615_mcu_sta_add(phy, vif, NULL, true); @@ -598,6 +595,10 @@ static void mt7615_bss_info_changed(struct ieee80211_hw *hw, BSS_CHANGED_BEACON_ENABLED)) mt7615_mcu_add_beacon(dev, hw, vif, info->enable_beacon); + if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) + mt7615_mcu_set_protection(phy, vif, info->ht_operation_mode, + info->use_cts_prot); + if (changed & BSS_CHANGED_PS) mt76_connac_mcu_set_vif_ps(&dev->mt76, vif); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c index fc0054f8b..ff57ede87 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c @@ -2564,3 +2564,50 @@ int mt7615_mcu_set_roc(struct mt7615_phy *phy, struct ieee80211_vif *vif, return mt76_mcu_send_msg(&dev->mt76, MCU_CE_CMD(SET_ROC), &req, sizeof(req), false); } + +int mt7615_mcu_set_protection(struct mt7615_phy *phy, struct ieee80211_vif *vif, + u8 ht_mode, bool use_cts_prot) +{ + struct mt7615_dev *dev = phy->dev; + struct { + u8 prot_idx; + u8 band; + u8 rsv[2]; + + bool long_nav; + bool prot_mm; + bool prot_gf; + bool prot_bw40; + bool prot_rifs; + bool prot_bw80; + bool prot_bw160; + u8 prot_erp_mask; + } __packed req = { + .prot_idx = 0x2, + .band = phy != &dev->phy, + }; + + switch (ht_mode & IEEE80211_HT_OP_MODE_PROTECTION) { + case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: + case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: + req.prot_mm = true; + req.prot_gf = true; + fallthrough; + case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: + req.prot_bw40 = true; + break; + } + + if (ht_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) + req.prot_gf = true; + + if (use_cts_prot) { + struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; + u8 i = mvif->mt76.omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : mvif->mt76.omac_idx; + + req.prot_erp_mask = BIT(i); + } + + return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(PROTECT_CTRL), &req, + sizeof(req), true); +} diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h index c93fd245c..391928405 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h @@ -467,8 +467,6 @@ void mt7615_mac_reset_counters(struct mt7615_phy *phy); void mt7615_mac_cca_stats_reset(struct mt7615_phy *phy); void mt7615_mac_set_scs(struct mt7615_phy *phy, bool enable); void mt7615_mac_enable_nf(struct mt7615_dev *dev, bool ext_phy); -void mt7615_mac_enable_rtscts(struct mt7615_dev *dev, - struct ieee80211_vif *vif, bool enable); void mt7615_mac_sta_poll(struct mt7615_dev *dev); int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi, struct sk_buff *skb, struct mt76_wcid *wcid, @@ -523,7 +521,8 @@ int mt7615_mcu_set_sku_en(struct mt7615_phy *phy, bool enable); int mt7615_mcu_apply_rx_dcoc(struct mt7615_phy *phy); int mt7615_mcu_apply_tx_dpd(struct mt7615_phy *phy); int mt7615_dfs_init_radar_detector(struct mt7615_phy *phy); - +int mt7615_mcu_set_protection(struct mt7615_phy *phy, struct ieee80211_vif *vif, + u8 ht_mode, bool use_cts_prot); int mt7615_mcu_set_roc(struct mt7615_phy *phy, struct ieee80211_vif *vif, struct ieee80211_channel *chan, int duration); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h index eb3c24d51..e4133e918 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h @@ -455,8 +455,6 @@ enum mt7615_reg_base { #define MT_WTBL_RIUCR3_RATE6 GENMASK(19, 8) #define MT_WTBL_RIUCR3_RATE7 GENMASK(31, 20) -#define MT_WTBL_W3_RTS BIT(22) - #define MT_WTBL_W5_CHANGE_BW_RATE GENMASK(7, 5) #define MT_WTBL_W5_SHORT_GI_20 BIT(8) #define MT_WTBL_W5_SHORT_GI_40 BIT(9) -- 2.45.2