mt76: mt7615: enable beacon hw filter for runtime-pm

In order to reduce number of received interrupts and power consumption,
enable hw beacon filter if runtime-pm is enabled
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7615/mac.c

@@ -1929,8 +1929,31 @@ void mt7615_pm_power_save_work(struct work_struct *work)
 				   MT7615_PM_TIMEOUT);
 }
 
+static void
+mt7615_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct mt7615_phy *phy = priv;
+	struct mt7615_dev *dev = phy->dev;
+	bool ext_phy = phy != &dev->phy;
+
+	if (mt7615_mcu_set_bss_pm(dev, vif, dev->pm.enable))
+		return;
+
+	if (dev->pm.enable) {
+		vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
+		mt76_set(dev, MT_WF_RFCR(ext_phy),
+			 MT_WF_RFCR_DROP_OTHER_BEACON);
+	} else {
+		vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
+		mt76_clear(dev, MT_WF_RFCR(ext_phy),
+			   MT_WF_RFCR_DROP_OTHER_BEACON);
+	}
+}
+
 int mt7615_pm_set_enable(struct mt7615_dev *dev, bool enable)
 {
+	struct mt76_phy *mphy = dev->phy.mt76;
+
 	if (!mt7615_firmware_offload(dev) || !mt76_is_mmio(&dev->mt76))
 		return -EOPNOTSUPP;
 
@@ -1940,6 +1963,9 @@ int mt7615_pm_set_enable(struct mt7615_dev *dev, bool enable)
 		goto out;
 
 	dev->pm.enable = enable;
+	ieee80211_iterate_active_interfaces(mphy->hw,
+					    IEEE80211_IFACE_ITER_RESUME_ALL,
+					    mt7615_pm_interface_iter, mphy->priv);
 out:
 	mt7615_mutex_release(dev);
 

drivers/net/wireless/mediatek/mt76/mt7615/main.c

@@ -209,6 +209,18 @@ static int mt7615_add_interface(struct ieee80211_hw *hw,
 	}
 
 	ret = mt7615_mcu_add_dev_info(dev, vif, true);
+	if (ret)
+		goto out;
+
+	if (dev->pm.enable) {
+		ret = mt7615_mcu_set_bss_pm(dev, vif, true);
+		if (ret)
+			goto out;
+
+		vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
+		mt76_set(dev, MT_WF_RFCR(ext_phy),
+			 MT_WF_RFCR_DROP_OTHER_BEACON);
+	}
 out:
 	mt7615_mutex_release(dev);
 
@@ -234,6 +246,13 @@ static void mt7615_remove_interface(struct ieee80211_hw *hw,
 
 	mt7615_free_pending_tx_skbs(dev, msta);
 
+	if (dev->pm.enable) {
+		bool ext_phy = phy != &dev->phy;
+
+		mt7615_mcu_set_bss_pm(dev, vif, false);
+		mt76_clear(dev, MT_WF_RFCR(ext_phy),
+			   MT_WF_RFCR_DROP_OTHER_BEACON);
+	}
 	mt7615_mcu_add_dev_info(dev, vif, false);
 
 	rcu_assign_pointer(dev->mt76.wcid[idx], NULL);

drivers/net/wireless/mediatek/mt76/mt7615/mcu.c

@@ -3460,43 +3460,8 @@ int mt7615_mcu_apply_tx_dpd(struct mt7615_phy *phy)
 	return ret;
 }
 
-#ifdef CONFIG_PM
-int mt7615_mcu_set_hif_suspend(struct mt7615_dev *dev, bool suspend)
-{
-	struct {
-		struct {
-			u8 hif_type; /* 0x0: HIF_SDIO
-				      * 0x1: HIF_USB
-				      * 0x2: HIF_PCIE
-				      */
-			u8 pad[3];
-		} __packed hdr;
-		struct hif_suspend_tlv {
-			__le16 tag;
-			__le16 len;
-			u8 suspend;
-		} __packed hif_suspend;
-	} req = {
-		.hif_suspend = {
-			.tag = cpu_to_le16(0), /* 0: UNI_HIF_CTRL_BASIC */
-			.len = cpu_to_le16(sizeof(struct hif_suspend_tlv)),
-			.suspend = suspend,
-		},
-	};
-
-	if (mt76_is_mmio(&dev->mt76))
-		req.hdr.hif_type = 2;
-	else if (mt76_is_usb(&dev->mt76))
-		req.hdr.hif_type = 1;
-
-	return __mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_HIF_CTRL,
-				   &req, sizeof(req), true);
-}
-EXPORT_SYMBOL_GPL(mt7615_mcu_set_hif_suspend);
-
-static int
-mt7615_mcu_set_bss_pm(struct mt7615_dev *dev, struct ieee80211_vif *vif,
-		      bool enable)
+int mt7615_mcu_set_bss_pm(struct mt7615_dev *dev, struct ieee80211_vif *vif,
+			  bool enable)
 {
 	struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
 	struct {
@@ -3536,6 +3501,40 @@ mt7615_mcu_set_bss_pm(struct mt7615_dev *dev, struct ieee80211_vif *vif,
 				   &req, sizeof(req), false);
 }
 
+#ifdef CONFIG_PM
+int mt7615_mcu_set_hif_suspend(struct mt7615_dev *dev, bool suspend)
+{
+	struct {
+		struct {
+			u8 hif_type; /* 0x0: HIF_SDIO
+				      * 0x1: HIF_USB
+				      * 0x2: HIF_PCIE
+				      */
+			u8 pad[3];
+		} __packed hdr;
+		struct hif_suspend_tlv {
+			__le16 tag;
+			__le16 len;
+			u8 suspend;
+		} __packed hif_suspend;
+	} req = {
+		.hif_suspend = {
+			.tag = cpu_to_le16(0), /* 0: UNI_HIF_CTRL_BASIC */
+			.len = cpu_to_le16(sizeof(struct hif_suspend_tlv)),
+			.suspend = suspend,
+		},
+	};
+
+	if (mt76_is_mmio(&dev->mt76))
+		req.hdr.hif_type = 2;
+	else if (mt76_is_usb(&dev->mt76))
+		req.hdr.hif_type = 1;
+
+	return __mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD_HIF_CTRL,
+				   &req, sizeof(req), true);
+}
+EXPORT_SYMBOL_GPL(mt7615_mcu_set_hif_suspend);
+
 static int
 mt7615_mcu_set_wow_ctrl(struct mt7615_phy *phy, struct ieee80211_vif *vif,
 			bool suspend, struct cfg80211_wowlan *wowlan)

drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h

@@ -640,6 +640,8 @@ int mt7615_driver_own(struct mt7615_dev *dev);
 int mt7615_init_debugfs(struct mt7615_dev *dev);
 int mt7615_mcu_wait_response(struct mt7615_dev *dev, int cmd, int seq);
 
+int mt7615_mcu_set_bss_pm(struct mt7615_dev *dev, struct ieee80211_vif *vif,
+			  bool enable);
 int mt7615_mcu_set_hif_suspend(struct mt7615_dev *dev, bool suspend);
 void mt7615_mcu_set_suspend_iter(void *priv, u8 *mac,
 				 struct ieee80211_vif *vif);