recipes-wifi/linux-mt76/files/patches-3.x/0092-mtk-mt76-mt7996-handle-mapping-for-hw-and-phy.patch

From e006a5bd3426c65015ad3437cc840f36e4a30c54 Mon Sep 17 00:00:00 2001
From: Shayne Chen <shayne.chen@mediatek.com>
Date: Tue, 5 Dec 2023 13:56:51 +0800
Subject: [PATCH 092/193] mtk: mt76: mt7996: handle mapping for hw and phy

We've used mt7996_band_phy() to do mapping from ieee80211_hw to mt7996_phy,
and this patch is a temporal workaround for opposite direction.
This is a preliminary patch to add MLO support for mt7996 chipsets.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
---
 mac80211.c    | 11 ++++++++++-
 mt76.h        | 10 ++++++++++
 mt7996/mac.c  |  7 +++++--
 mt7996/main.c | 45 +++++++++++++++++++++++++++++++++++----------
 4 files changed, 60 insertions(+), 13 deletions(-)

diff --git a/mac80211.c b/mac80211.c
index ec73fe0..0363227 100644
--- a/mac80211.c
+++ b/mac80211.c
@@ -823,9 +823,13 @@ EXPORT_SYMBOL_GPL(mt76_has_tx_pending);
 struct mt76_channel_state *
 mt76_channel_state(struct mt76_phy *phy, struct ieee80211_channel *c)
 {
+	struct mt76_phy *ori_phy = phy;
 	struct mt76_sband *msband;
 	int idx;
 
+	if (phy->main_phy)
+		phy = phy->main_phy;
+begin:
 	if (c->band == NL80211_BAND_2GHZ)
 		msband = &phy->sband_2g;
 	else if (c->band == NL80211_BAND_6GHZ)
@@ -834,6 +838,11 @@ mt76_channel_state(struct mt76_phy *phy, struct ieee80211_channel *c)
 		msband = &phy->sband_5g;
 
 	idx = c - &msband->sband.channels[0];
+	/* TODO: mlo: this is a temp solution, need to come up with a more clever one */
+	if (idx < 0 || idx >= msband->sband.n_channels) {
+		phy = ori_phy;
+		goto begin;
+	}
 	return &msband->chan[idx];
 }
 EXPORT_SYMBOL_GPL(mt76_channel_state);
@@ -1098,7 +1107,7 @@ mt76_rx_convert(struct mt76_dev *dev, struct sk_buff *skb,
 	}
 
 	*sta = wcid_to_sta(mstat.wcid);
-	*hw = mt76_phy_hw(dev, mstat.phy_idx);
+	*hw = mt76_main_hw(dev->phys[mstat.phy_idx]);
 }
 
 static void
diff --git a/mt76.h b/mt76.h
index 36e92df..9fa411c 100644
--- a/mt76.h
+++ b/mt76.h
@@ -843,6 +843,7 @@ struct mt76_vif {
 struct mt76_phy {
 	struct ieee80211_hw *hw;
 	struct mt76_dev *dev;
+	struct mt76_phy *main_phy;
 	void *priv;
 
 	unsigned long state;
@@ -1321,6 +1322,15 @@ mt76_phy_hw(struct mt76_dev *dev, u8 phy_idx)
 	return mt76_dev_phy(dev, phy_idx)->hw;
 }
 
+static inline struct ieee80211_hw *
+mt76_main_hw(struct mt76_phy *phy)
+{
+	if (phy->main_phy)
+		return mt76_dev_phy(phy->dev, phy->main_phy->band_idx)->hw;
+
+	return mt76_dev_phy(phy->dev, phy->band_idx)->hw;
+}
+
 static inline u8 *
 mt76_get_txwi_ptr(struct mt76_dev *dev, struct mt76_txwi_cache *t)
 {
diff --git a/mt7996/mac.c b/mt7996/mac.c
index c4cd5bc..f9aa0e5 100644
--- a/mt7996/mac.c
+++ b/mt7996/mac.c
@@ -2394,7 +2394,10 @@ void mt7996_mac_work(struct work_struct *work)
 
 	mt76_tx_status_check(mdev, false);
 
-	ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
+	if (mphy->main_phy && !test_bit(MT76_STATE_RUNNING, &mphy->main_phy->state))
+		return;
+
+	ieee80211_queue_delayed_work(mt76_main_hw(mphy), &mphy->mac_work,
 				     MT7996_WATCHDOG_TIME);
 }
 
@@ -2813,7 +2816,7 @@ mt7996_scan_send_probe(struct mt7996_phy *phy, struct cfg80211_ssid *ssid,
 	skb_set_queue_mapping(skb, IEEE80211_AC_VO);
 
 	rcu_read_lock();
-	if (!ieee80211_tx_prepare_skb(hw, vif, skb,
+	if (!ieee80211_tx_prepare_skb(mt76_main_hw(phy->mt76), vif, skb,
 				      phy->scan_chan->band,
 				      NULL)) {
 		rcu_read_unlock();
diff --git a/mt7996/main.c b/mt7996/main.c
index 3f0c0ec..bfa78e3 100644
--- a/mt7996/main.c
+++ b/mt7996/main.c
@@ -173,6 +173,7 @@ static void mt7996_stop(struct ieee80211_hw *hw, bool suspend)
 		mutex_lock(&dev->mt76.mutex);
 		mt7996_mcu_set_radio_en(phy, false);
 		clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
+		phy->mt76->main_phy = NULL;
 		mutex_unlock(&dev->mt76.mutex);
 	}
 }
@@ -542,7 +543,14 @@ static int __mt7996_set_channel(struct mt7996_phy *phy,
 	phy->noise = 0;
 
 out:
-	ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
+	clear_bit(MT76_RESET, &phy->mt76->state);
+	mutex_unlock(&dev->mt76.mutex);
+
+	if (phy->mt76 == phy->mt76->main_phy)
+		mt76_txq_schedule_all(phy->mt76);
+
+	ieee80211_queue_delayed_work(mt76_main_hw(phy->mt76),
+				     &phy->mt76->mac_work,
 				     MT7996_WATCHDOG_TIME);
 
 	return ret;
@@ -552,11 +560,11 @@ int mt7996_set_channel(struct mt7996_phy *phy, struct cfg80211_chan_def *chandef
 {
 	int ret;
 
-	ieee80211_stop_queues(phy->mt76->hw);
+	ieee80211_stop_queues(mt76_main_hw(phy->mt76));
 	ret = __mt7996_set_channel(phy, chandef);
 	if (ret)
 		return ret;
-	ieee80211_wake_queues(phy->mt76->hw);
+	ieee80211_wake_queues(mt76_main_hw(phy->mt76));
 
 	return 0;
 }
@@ -729,6 +737,7 @@ static void mt7996_configure_filter(struct ieee80211_hw *hw,
 			MT_WF_RFCR1_DROP_CFEND |
 			MT_WF_RFCR1_DROP_CFACK;
 	u32 flags = 0;
+	u8 band;
 
 #define MT76_FILTER(_flag, _hw) do {					\
 		flags |= *total_flags & FIF_##_flag;			\
@@ -761,12 +770,26 @@ static void mt7996_configure_filter(struct ieee80211_hw *hw,
 			     MT_WF_RFCR_DROP_CTL_RSV);
 
 	*total_flags = flags;
-	mt76_wr(dev, MT_WF_RFCR(phy->mt76->band_idx), phy->rxfilter);
 
-	if (*total_flags & FIF_CONTROL)
-		mt76_clear(dev, MT_WF_RFCR1(phy->mt76->band_idx), ctl_flags);
-	else
-		mt76_set(dev, MT_WF_RFCR1(phy->mt76->band_idx), ctl_flags);
+	/* configure rx filter to all affliated phy */
+	for (band = 0; band < __MT_MAX_BAND; band++) {
+		struct mt7996_phy *tmp;
+
+		if (!hw->wiphy->bands[band])
+			continue;
+
+		tmp = dev->mt76.phys[band]->priv;
+		if (tmp->mt76->main_phy != phy->mt76)
+			continue;
+
+		tmp->rxfilter = phy->rxfilter;
+		mt76_wr(dev, MT_WF_RFCR(tmp->mt76->band_idx), phy->rxfilter);
+
+		if (*total_flags & FIF_CONTROL)
+			mt76_clear(dev, MT_WF_RFCR1(tmp->mt76->band_idx), ctl_flags);
+		else
+			mt76_set(dev, MT_WF_RFCR1(tmp->mt76->band_idx), ctl_flags);
+	}
 
 	mutex_unlock(&dev->mt76.mutex);
 }
@@ -2187,7 +2210,7 @@ mt7996_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	phy->scan_chan_idx = 0;
 	mutex_unlock(&phy->dev->mt76.mutex);
 
-	ieee80211_queue_delayed_work(hw, &phy->scan_work, 0);
+	ieee80211_queue_delayed_work(mt76_main_hw(phy->mt76), &phy->scan_work, 0);
 
 	return 0;
 }
@@ -2204,7 +2227,8 @@ mt7996_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 			continue;
 
 		phy = mt7996_band_phy(hw, band);
-		if (!(test_bit(MT76_SCANNING, &phy->mt76->state)))
+		if (!(test_bit(MT76_SCANNING, &phy->mt76->state) &&
+		      phy->mt76->main_phy == hw->priv))
 			continue;
 
 		cancel_delayed_work_sync(&phy->scan_work);
@@ -2225,6 +2249,7 @@ mt7996_add_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *conf)
 	wiphy_info(hw->wiphy, "%s: add %u\n", __func__, conf->def.chan->hw_value);
 	mutex_lock(&phy->dev->mt76.mutex);
 
+	phy->mt76->main_phy = hw->priv;
 	if (ctx->assigned) {
 		mutex_unlock(&phy->dev->mt76.mutex);
 		return -ENOSPC;
-- 
2.45.2