Received-SPF: pass (google.com: domain of linux-kernel+bounces-112949-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99;
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Cc: Wen Gong <quic_wgong@quicinc.com>,
	Baochen Qiang <quic_bqiang@quicinc.com>,
	Kalle Valo <quic_kvalo@quicinc.com>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 6.8 062/715] wifi: ath11k: add support to select 6 GHz regulatory type
Date: Sun, 24 Mar 2024 18:24:01 -0400
Message-ID: <20240324223455.1342824-63-sashal@kernel.org>
In-Reply-To: <20240324223455.1342824-1-sashal@kernel.org>
References: <20240324223455.1342824-1-sashal@kernel.org>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

From: Wen Gong <quic_wgong@quicinc.com>

[ Upstream commit e3d373ec4f02bf41379d91707e3e3f2a46464cd7 ]

There are 3 types of regulatory rules for AP mode and 6 type for
station mode. Add wmi_vdev_type and ieee80211_ap_reg_power to
select the exact reg rules.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.23

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20231218085844.2658-2-quic_bqiang@quicinc.com
Stable-dep-of: cf2df0080bd5 ("wifi: ath11k: fix a possible dead lock caused by ab->base_lock")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/reg.c | 70 +++++++++++++++++++++------
 drivers/net/wireless/ath/ath11k/reg.h |  6 ++-
 drivers/net/wireless/ath/ath11k/wmi.c |  3 +-
 3 files changed, 62 insertions(+), 17 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/reg.c b/drivers/net/wireless/ath/ath11k/reg.c
index b4fd4d2107c71..78b99ab10c634 100644
--- a/drivers/net/wireless/ath/ath11k/reg.c
+++ b/drivers/net/wireless/ath/ath11k/reg.c
@@ -618,25 +618,68 @@ ath11k_reg_update_weather_radar_band(struct ath11k_base *ab,
 	*rule_idx = i;
 }
 
+enum wmi_reg_6ghz_ap_type
+ath11k_reg_ap_pwr_convert(enum ieee80211_ap_reg_power power_type)
+{
+	switch (power_type) {
+	case IEEE80211_REG_LPI_AP:
+		return WMI_REG_INDOOR_AP;
+	case IEEE80211_REG_SP_AP:
+		return WMI_REG_STANDARD_POWER_AP;
+	case IEEE80211_REG_VLP_AP:
+		return WMI_REG_VERY_LOW_POWER_AP;
+	default:
+		return WMI_REG_MAX_AP_TYPE;
+	}
+}
+
 struct ieee80211_regdomain *
 ath11k_reg_build_regd(struct ath11k_base *ab,
-		      struct cur_regulatory_info *reg_info, bool intersect)
+		      struct cur_regulatory_info *reg_info, bool intersect,
+		      enum wmi_vdev_type vdev_type,
+		      enum ieee80211_ap_reg_power power_type)
 {
 	struct ieee80211_regdomain *tmp_regd, *default_regd, *new_regd = NULL;
-	struct cur_reg_rule *reg_rule;
+	struct cur_reg_rule *reg_rule, *reg_rule_6ghz;
 	u8 i = 0, j = 0, k = 0;
 	u8 num_rules;
 	u16 max_bw;
-	u32 flags;
+	u32 flags, reg_6ghz_number, max_bw_6ghz;
 	char alpha2[3];
 
 	num_rules = reg_info->num_5ghz_reg_rules + reg_info->num_2ghz_reg_rules;
 
-	/* FIXME: Currently taking reg rules for 6 GHz only from Indoor AP mode list.
-	 * This can be updated after complete 6 GHz regulatory support is added.
-	 */
-	if (reg_info->is_ext_reg_event)
-		num_rules += reg_info->num_6ghz_rules_ap[WMI_REG_INDOOR_AP];
+	if (reg_info->is_ext_reg_event) {
+		if (vdev_type == WMI_VDEV_TYPE_STA) {
+			enum wmi_reg_6ghz_ap_type ap_type;
+
+			ap_type = ath11k_reg_ap_pwr_convert(power_type);
+
+			if (ap_type == WMI_REG_MAX_AP_TYPE)
+				ap_type = WMI_REG_INDOOR_AP;
+
+			reg_6ghz_number = reg_info->num_6ghz_rules_client
+					[ap_type][WMI_REG_DEFAULT_CLIENT];
+
+			if (reg_6ghz_number == 0) {
+				ap_type = WMI_REG_INDOOR_AP;
+				reg_6ghz_number = reg_info->num_6ghz_rules_client
+						[ap_type][WMI_REG_DEFAULT_CLIENT];
+			}
+
+			reg_rule_6ghz = reg_info->reg_rules_6ghz_client_ptr
+					[ap_type][WMI_REG_DEFAULT_CLIENT];
+			max_bw_6ghz = reg_info->max_bw_6ghz_client
+					[ap_type][WMI_REG_DEFAULT_CLIENT];
+		} else {
+			reg_6ghz_number = reg_info->num_6ghz_rules_ap[WMI_REG_INDOOR_AP];
+			reg_rule_6ghz =
+				reg_info->reg_rules_6ghz_ap_ptr[WMI_REG_INDOOR_AP];
+			max_bw_6ghz = reg_info->max_bw_6ghz_ap[WMI_REG_INDOOR_AP];
+		}
+
+		num_rules += reg_6ghz_number;
+	}
 
 	if (!num_rules)
 		goto ret;
@@ -683,13 +726,10 @@ ath11k_reg_build_regd(struct ath11k_base *ab,
 			 * per other BW rule flags we pass from here
 			 */
 			flags = NL80211_RRF_AUTO_BW;
-		} else if (reg_info->is_ext_reg_event &&
-			   reg_info->num_6ghz_rules_ap[WMI_REG_INDOOR_AP] &&
-			   (k < reg_info->num_6ghz_rules_ap[WMI_REG_INDOOR_AP])) {
-			reg_rule = reg_info->reg_rules_6ghz_ap_ptr[WMI_REG_INDOOR_AP] +
-				   k++;
-			max_bw = min_t(u16, reg_rule->max_bw,
-				       reg_info->max_bw_6ghz_ap[WMI_REG_INDOOR_AP]);
+		} else if (reg_info->is_ext_reg_event && reg_6ghz_number &&
+			   k < reg_6ghz_number) {
+			reg_rule = reg_rule_6ghz + k++;
+			max_bw = min_t(u16, reg_rule->max_bw, max_bw_6ghz);
 			flags = NL80211_RRF_AUTO_BW;
 		} else {
 			break;
diff --git a/drivers/net/wireless/ath/ath11k/reg.h b/drivers/net/wireless/ath/ath11k/reg.h
index f28902f85e419..989b27b16bea0 100644
--- a/drivers/net/wireless/ath/ath11k/reg.h
+++ b/drivers/net/wireless/ath/ath11k/reg.h
@@ -34,7 +34,11 @@ void ath11k_reg_free(struct ath11k_base *ab);
 void ath11k_regd_update_work(struct work_struct *work);
 struct ieee80211_regdomain *
 ath11k_reg_build_regd(struct ath11k_base *ab,
-		      struct cur_regulatory_info *reg_info, bool intersect);
+		      struct cur_regulatory_info *reg_info, bool intersect,
+		      enum wmi_vdev_type vdev_type,
+		      enum ieee80211_ap_reg_power power_type);
 int ath11k_regd_update(struct ath11k *ar);
 int ath11k_reg_update_chan_list(struct ath11k *ar, bool wait);
+enum wmi_reg_6ghz_ap_type
+ath11k_reg_ap_pwr_convert(enum ieee80211_ap_reg_power power_type);
 #endif
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 8a65fa04b48d9..75c79c99faa9f 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -7151,7 +7151,8 @@ static int ath11k_reg_chan_list_event(struct ath11k_base *ab,
 	    !ath11k_reg_is_world_alpha((char *)reg_info->alpha2))
 		intersect = true;
 
-	regd = ath11k_reg_build_regd(ab, reg_info, intersect);
+	regd = ath11k_reg_build_regd(ab, reg_info, intersect,
+				     WMI_VDEV_TYPE_AP, IEEE80211_REG_LPI_AP);
 	if (!regd) {
 		ath11k_warn(ab, "failed to build regd from reg_info\n");
 		goto fallback;
-- 
2.43.0