linux-kernel - [PATCH 6.7 284/713] wifi: mt76: mt7925: fix SAP no beacon issue in 5Ghz and 6Ghz band

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Date: Sun, 24 Mar 2024 18:40:10 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: "rong.yan" <rong.yan@...iatek.com>,
	Ming Yen Hsieh <mingyen.hsieh@...iatek.com>,
	Felix Fietkau <nbd@....name>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.7 284/713] wifi: mt76: mt7925: fix SAP no beacon issue in 5Ghz and 6Ghz band

From: "rong.yan" <rong.yan@...iatek.com>

[ Upstream commit 243cecc857735344473ea33a713cd5c2ec1fe347 ]

Driver should configure basic rate and phy mode for SAP mode.

Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips")
Signed-off-by: rong.yan <rong.yan@...iatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@...iatek.com>
Signed-off-by: Felix Fietkau <nbd@....name>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 .../net/wireless/mediatek/mt76/mt76_connac_mcu.h    |  3 +++
 drivers/net/wireless/mediatek/mt76/mt7925/mcu.c     | 13 ++++++++++---
 drivers/net/wireless/mediatek/mt76/mt7925/mcu.h     |  3 ++-
 3 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
index 0563b1b22f485..c2241b068635f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
@@ -925,6 +925,9 @@ enum {
 	PHY_TYPE_INDEX_NUM
 };
 
+#define HR_DSSS_ERP_BASIC_RATE			GENMASK(3, 0)
+#define OFDM_BASIC_RATE				(BIT(6) | BIT(8) | BIT(10))
+
 #define PHY_TYPE_BIT_HR_DSSS			BIT(PHY_TYPE_HR_DSSS_INDEX)
 #define PHY_TYPE_BIT_ERP			BIT(PHY_TYPE_ERP_INDEX)
 #define PHY_TYPE_BIT_OFDM			BIT(PHY_TYPE_OFDM_INDEX)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
index 2e52f9281ab73..322198b20c0d3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
@@ -2047,9 +2047,9 @@ mt7925_mcu_bss_basic_tlv(struct sk_buff *skb,
 	struct cfg80211_chan_def *chandef = ctx ? &ctx->def : &phy->chandef;
 	enum nl80211_band band = chandef->chan->band;
 	struct mt76_connac_bss_basic_tlv *basic_req;
-	u8 idx, basic_phy;
 	struct tlv *tlv;
 	int conn_type;
+	u8 idx;
 
 	tlv = mt76_connac_mcu_add_tlv(skb, UNI_BSS_INFO_BASIC, sizeof(*basic_req));
 	basic_req = (struct mt76_connac_bss_basic_tlv *)tlv;
@@ -2060,8 +2060,10 @@ mt7925_mcu_bss_basic_tlv(struct sk_buff *skb,
 
 	basic_req->phymode_ext = mt7925_get_phy_mode_ext(phy, vif, band, sta);
 
-	basic_phy = mt76_connac_get_phy_mode_v2(phy, vif, band, sta);
-	basic_req->nonht_basic_phy = cpu_to_le16(basic_phy);
+	if (band == NL80211_BAND_2GHZ)
+		basic_req->nonht_basic_phy = cpu_to_le16(PHY_TYPE_ERP_INDEX);
+	else
+		basic_req->nonht_basic_phy = cpu_to_le16(PHY_TYPE_OFDM_INDEX);
 
 	memcpy(basic_req->bssid, vif->bss_conf.bssid, ETH_ALEN);
 	basic_req->phymode = mt76_connac_get_phy_mode(phy, vif, band, sta);
@@ -2165,6 +2167,11 @@ mt7925_mcu_bss_bmc_tlv(struct sk_buff *skb, struct mt792x_phy *phy,
 
 	bmc = (struct bss_rate_tlv *)tlv;
 
+	if (band == NL80211_BAND_2GHZ)
+		bmc->basic_rate = cpu_to_le16(HR_DSSS_ERP_BASIC_RATE);
+	else
+		bmc->basic_rate = cpu_to_le16(OFDM_BASIC_RATE);
+
 	bmc->short_preamble = (band == NL80211_BAND_2GHZ);
 	bmc->bc_fixed_rate = idx;
 	bmc->mc_fixed_rate = idx;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h
index 3c41e21303b1f..0218fd2a0eb01 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.h
@@ -334,7 +334,8 @@ struct bss_req_hdr {
 struct bss_rate_tlv {
 	__le16 tag;
 	__le16 len;
-	u8 __rsv1[4];
+	u8 __rsv1[2];
+	__le16 basic_rate;
 	__le16 bc_trans;
 	__le16 mc_trans;
 	u8 short_preamble;
-- 
2.43.0