openwrt/package/kernel/mac80211/patches/ath11k/0039-wifi-ath11k-push-MU-MIMO-params-from-hostapd-to-hard.patch

From 38dfe775d0abf511341f37c1cb77b919a3ad410b Mon Sep 17 00:00:00 2001
From: Muna Sinada <quic_msinada@quicinc.com>
Date: Fri, 24 Feb 2023 12:28:04 +0200
Subject: [PATCH] wifi: ath11k: push MU-MIMO params from hostapd to hardware

In the previous behaviour only HE IE in management frames are changed
regarding MU-MIMO configurations and not in hardware. Adding push of
MU-MIMO configurations to the hardware as well.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00356-QCAHKSWPL_SILICONZ-1

Co-developed-by: Anilkumar Kolli <quic_akolli@quicinc.com>
Signed-off-by: Anilkumar Kolli <quic_akolli@quicinc.com>
Signed-off-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1666128501-12364-3-git-send-email-quic_msinada@quicinc.com
---
 drivers/net/wireless/ath/ath11k/mac.c | 200 ++++++++++++++++----------
 drivers/net/wireless/ath/ath11k/wmi.h |   3 +
 2 files changed, 130 insertions(+), 73 deletions(-)

--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -2696,6 +2696,117 @@ static int ath11k_setup_peer_smps(struct
 					 ath11k_smps_map[smps]);
 }
 
+static bool ath11k_mac_set_he_txbf_conf(struct ath11k_vif *arvif)
+{
+	struct ath11k *ar = arvif->ar;
+	u32 param, value;
+	int ret;
+
+	if (!arvif->vif->bss_conf.he_support)
+		return true;
+
+	param = WMI_VDEV_PARAM_SET_HEMU_MODE;
+	value = 0;
+	if (arvif->vif->bss_conf.he_su_beamformer) {
+		value |= FIELD_PREP(HE_MODE_SU_TX_BFER, HE_SU_BFER_ENABLE);
+		if (arvif->vif->bss_conf.he_mu_beamformer &&
+		    arvif->vdev_type == WMI_VDEV_TYPE_AP)
+			value |= FIELD_PREP(HE_MODE_MU_TX_BFER, HE_MU_BFER_ENABLE);
+	}
+
+	if (arvif->vif->type != NL80211_IFTYPE_MESH_POINT) {
+		value |= FIELD_PREP(HE_MODE_DL_OFDMA, HE_DL_MUOFDMA_ENABLE) |
+			 FIELD_PREP(HE_MODE_UL_OFDMA, HE_UL_MUOFDMA_ENABLE);
+
+		if (arvif->vif->bss_conf.he_full_ul_mumimo)
+			value |= FIELD_PREP(HE_MODE_UL_MUMIMO, HE_UL_MUMIMO_ENABLE);
+
+		if (arvif->vif->bss_conf.he_su_beamformee)
+			value |= FIELD_PREP(HE_MODE_SU_TX_BFEE, HE_SU_BFEE_ENABLE);
+	}
+
+	ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, param, value);
+	if (ret) {
+		ath11k_warn(ar->ab, "failed to set vdev %d HE MU mode: %d\n",
+			    arvif->vdev_id, ret);
+		return false;
+	}
+
+	param = WMI_VDEV_PARAM_SET_HE_SOUNDING_MODE;
+	value =	FIELD_PREP(HE_VHT_SOUNDING_MODE, HE_VHT_SOUNDING_MODE_ENABLE) |
+		FIELD_PREP(HE_TRIG_NONTRIG_SOUNDING_MODE,
+			   HE_TRIG_NONTRIG_SOUNDING_MODE_ENABLE);
+	ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
+					    param, value);
+	if (ret) {
+		ath11k_warn(ar->ab, "failed to set vdev %d sounding mode: %d\n",
+			    arvif->vdev_id, ret);
+		return false;
+	}
+	return true;
+}
+
+static bool ath11k_mac_vif_recalc_sta_he_txbf(struct ath11k *ar,
+					      struct ieee80211_vif *vif,
+					      struct ieee80211_sta_he_cap *he_cap)
+{
+	struct ath11k_vif *arvif = (void *)vif->drv_priv;
+	struct ieee80211_he_cap_elem he_cap_elem = {0};
+	struct ieee80211_sta_he_cap *cap_band = NULL;
+	struct cfg80211_chan_def def;
+	u32 param = WMI_VDEV_PARAM_SET_HEMU_MODE;
+	u32 hemode = 0;
+	int ret;
+
+	if (!vif->bss_conf.he_support)
+		return true;
+
+	if (vif->type != NL80211_IFTYPE_STATION)
+		return false;
+
+	if (WARN_ON(ath11k_mac_vif_chan(vif, &def)))
+		return false;
+
+	if (def.chan->band == NL80211_BAND_2GHZ)
+		cap_band = &ar->mac.iftype[NL80211_BAND_2GHZ][vif->type].he_cap;
+	else
+		cap_band = &ar->mac.iftype[NL80211_BAND_5GHZ][vif->type].he_cap;
+
+	memcpy(&he_cap_elem, &cap_band->he_cap_elem, sizeof(he_cap_elem));
+
+	if (HECAP_PHY_SUBFME_GET(he_cap_elem.phy_cap_info)) {
+		if (HECAP_PHY_SUBFMR_GET(he_cap->he_cap_elem.phy_cap_info))
+			hemode |= FIELD_PREP(HE_MODE_SU_TX_BFEE, HE_SU_BFEE_ENABLE);
+		if (HECAP_PHY_MUBFMR_GET(he_cap->he_cap_elem.phy_cap_info))
+			hemode |= FIELD_PREP(HE_MODE_MU_TX_BFEE, HE_MU_BFEE_ENABLE);
+	}
+
+	if (vif->type != NL80211_IFTYPE_MESH_POINT) {
+		hemode |= FIELD_PREP(HE_MODE_DL_OFDMA, HE_DL_MUOFDMA_ENABLE) |
+			  FIELD_PREP(HE_MODE_UL_OFDMA, HE_UL_MUOFDMA_ENABLE);
+
+		if (HECAP_PHY_ULMUMIMO_GET(he_cap_elem.phy_cap_info))
+			if (HECAP_PHY_ULMUMIMO_GET(he_cap->he_cap_elem.phy_cap_info))
+				hemode |= FIELD_PREP(HE_MODE_UL_MUMIMO,
+						     HE_UL_MUMIMO_ENABLE);
+
+		if (FIELD_GET(HE_MODE_MU_TX_BFEE, hemode))
+			hemode |= FIELD_PREP(HE_MODE_SU_TX_BFEE, HE_SU_BFEE_ENABLE);
+
+		if (FIELD_GET(HE_MODE_MU_TX_BFER, hemode))
+			hemode |= FIELD_PREP(HE_MODE_SU_TX_BFER, HE_SU_BFER_ENABLE);
+	}
+
+	ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id, param, hemode);
+	if (ret) {
+		ath11k_warn(ar->ab, "failed to submit vdev param txbf 0x%x: %d\n",
+			    hemode, ret);
+		return false;
+	}
+
+	return true;
+}
+
 static void ath11k_bss_assoc(struct ieee80211_hw *hw,
 			     struct ieee80211_vif *vif,
 			     struct ieee80211_bss_conf *bss_conf)
@@ -2706,6 +2817,7 @@ static void ath11k_bss_assoc(struct ieee
 	struct ieee80211_sta *ap_sta;
 	struct ath11k_peer *peer;
 	bool is_auth = false;
+	struct ieee80211_sta_he_cap  he_cap;
 	int ret;
 
 	lockdep_assert_held(&ar->conf_mutex);
@@ -2723,6 +2835,9 @@ static void ath11k_bss_assoc(struct ieee
 		return;
 	}
 
+	/* he_cap here is updated at assoc success for sta mode only */
+	he_cap  = ap_sta->deflink.he_cap;
+
 	ath11k_peer_assoc_prepare(ar, vif, ap_sta, &peer_arg, false);
 
 	rcu_read_unlock();
@@ -2750,6 +2865,12 @@ static void ath11k_bss_assoc(struct ieee
 		return;
 	}
 
+	if (!ath11k_mac_vif_recalc_sta_he_txbf(ar, vif, &he_cap)) {
+		ath11k_warn(ar->ab, "failed to recalc he txbf for vdev %i on bss %pM\n",
+			    arvif->vdev_id, bss_conf->bssid);
+		return;
+	}
+
 	WARN_ON(arvif->is_up);
 
 	arvif->aid = vif->cfg.aid;
@@ -3199,6 +3320,8 @@ static void ath11k_mac_op_bss_info_chang
 		ether_addr_copy(arvif->bssid, info->bssid);
 
 	if (changed & BSS_CHANGED_BEACON_ENABLED) {
+		if (info->enable_beacon)
+			ath11k_mac_set_he_txbf_conf(arvif);
 		ath11k_control_beaconing(arvif, info);
 
 		if (arvif->is_up && vif->bss_conf.he_support &&
@@ -5389,6 +5512,10 @@ static int ath11k_mac_copy_he_cap(struct
 
 		he_cap_elem->mac_cap_info[1] &=
 			IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_MASK;
+		he_cap_elem->phy_cap_info[0] &=
+			~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
+		he_cap_elem->phy_cap_info[0] &=
+			~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G;
 
 		he_cap_elem->phy_cap_info[5] &=
 			~IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK;
@@ -6023,69 +6150,6 @@ ath11k_mac_setup_vdev_create_params(stru
 	}
 }
 
-static u32
-ath11k_mac_prepare_he_mode(struct ath11k_pdev *pdev, u32 viftype)
-{
-	struct ath11k_pdev_cap *pdev_cap = &pdev->cap;
-	struct ath11k_band_cap *cap_band = NULL;
-	u32 *hecap_phy_ptr = NULL;
-	u32 hemode = 0;
-
-	if (pdev->cap.supported_bands & WMI_HOST_WLAN_2G_CAP)
-		cap_band = &pdev_cap->band[NL80211_BAND_2GHZ];
-	else
-		cap_band = &pdev_cap->band[NL80211_BAND_5GHZ];
-
-	hecap_phy_ptr = &cap_band->he_cap_phy_info[0];
-
-	hemode = FIELD_PREP(HE_MODE_SU_TX_BFEE, HE_SU_BFEE_ENABLE) |
-		 FIELD_PREP(HE_MODE_SU_TX_BFER, HECAP_PHY_SUBFMR_GET(hecap_phy_ptr)) |
-		 FIELD_PREP(HE_MODE_UL_MUMIMO, HECAP_PHY_ULMUMIMO_GET(hecap_phy_ptr));
-
-	/* TODO WDS and other modes */
-	if (viftype == NL80211_IFTYPE_AP) {
-		hemode |= FIELD_PREP(HE_MODE_MU_TX_BFER,
-			  HECAP_PHY_MUBFMR_GET(hecap_phy_ptr)) |
-			  FIELD_PREP(HE_MODE_DL_OFDMA, HE_DL_MUOFDMA_ENABLE) |
-			  FIELD_PREP(HE_MODE_UL_OFDMA, HE_UL_MUOFDMA_ENABLE);
-	} else {
-		hemode |= FIELD_PREP(HE_MODE_MU_TX_BFEE, HE_MU_BFEE_ENABLE);
-	}
-
-	return hemode;
-}
-
-static int ath11k_set_he_mu_sounding_mode(struct ath11k *ar,
-					  struct ath11k_vif *arvif)
-{
-	u32 param_id, param_value;
-	struct ath11k_base *ab = ar->ab;
-	int ret = 0;
-
-	param_id = WMI_VDEV_PARAM_SET_HEMU_MODE;
-	param_value = ath11k_mac_prepare_he_mode(ar->pdev, arvif->vif->type);
-	ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
-					    param_id, param_value);
-	if (ret) {
-		ath11k_warn(ab, "failed to set vdev %d HE MU mode: %d param_value %x\n",
-			    arvif->vdev_id, ret, param_value);
-		return ret;
-	}
-	param_id = WMI_VDEV_PARAM_SET_HE_SOUNDING_MODE;
-	param_value =
-		FIELD_PREP(HE_VHT_SOUNDING_MODE, HE_VHT_SOUNDING_MODE_ENABLE) |
-		FIELD_PREP(HE_TRIG_NONTRIG_SOUNDING_MODE,
-			   HE_TRIG_NONTRIG_SOUNDING_MODE_ENABLE);
-	ret = ath11k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
-					    param_id, param_value);
-	if (ret) {
-		ath11k_warn(ab, "failed to set vdev %d HE MU mode: %d\n",
-			    arvif->vdev_id, ret);
-		return ret;
-	}
-	return ret;
-}
-
 static void ath11k_mac_op_update_vif_offload(struct ieee80211_hw *hw,
 					     struct ieee80211_vif *vif)
 {
@@ -6754,7 +6818,6 @@ ath11k_mac_vdev_start_restart(struct ath
 	struct ath11k_base *ab = ar->ab;
 	struct wmi_vdev_start_req_arg arg = {};
 	const struct cfg80211_chan_def *chandef = &ctx->def;
-	int he_support = arvif->vif->bss_conf.he_support;
 	int ret = 0;
 
 	lockdep_assert_held(&ar->conf_mutex);
@@ -6795,15 +6858,6 @@ ath11k_mac_vdev_start_restart(struct ath
 		spin_lock_bh(&ab->base_lock);
 		arg.regdomain = ar->ab->dfs_region;
 		spin_unlock_bh(&ab->base_lock);
-
-		if (he_support) {
-			ret = ath11k_set_he_mu_sounding_mode(ar, arvif);
-			if (ret) {
-				ath11k_warn(ar->ab, "failed to set he mode vdev %i\n",
-					    arg.vdev_id);
-				return ret;
-			}
-		}
 	}
 
 	arg.channel.passive |= !!(chandef->chan->flags & IEEE80211_CHAN_NO_IR);
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -2897,8 +2897,11 @@ struct rx_reorder_queue_remove_params {
 #define HE_DL_MUOFDMA_ENABLE	1
 #define HE_UL_MUOFDMA_ENABLE	1
 #define HE_DL_MUMIMO_ENABLE	1
+#define HE_UL_MUMIMO_ENABLE	1
 #define HE_MU_BFEE_ENABLE	1
 #define HE_SU_BFEE_ENABLE	1
+#define HE_MU_BFER_ENABLE	1
+#define HE_SU_BFER_ENABLE	1
 
 #define HE_VHT_SOUNDING_MODE_ENABLE		1
 #define HE_SU_MU_SOUNDING_MODE_ENABLE		1