Merge tag 'wireless-next-2024-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Kalle Valo says:

====================
wireless-next patches for v6.9

The second "new features" pull request for v6.9.  Lots of iwlwifi and
stack changes this time. And naturally smaller changes to other drivers.

We also twice merged wireless into wireless-next to avoid conflicts
between the trees.

Major changes:

stack

* mac80211: negotiated TTLM request support

* SPP A-MSDU support

* mac80211: wider bandwidth OFDMA config support

iwlwifi

* kunit tests

* bump FW API to 89 for AX/BZ/SC devices

* enable SPP A-MSDUs

* support for new devices

ath12k

* refactoring in preparation for Multi-Link Operation (MLO) support

* 1024 Block Ack window size support

* provide firmware wmi logs via a trace event

ath11k

* 36 bit DMA mask support

* support 6 GHz station power modes: Low Power Indoor (LPI), Standard
  Power) SP and Very Low Power (VLP)

rtl8xxxu

* TP-Link TL-WN823N V2 support
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 169 insertions, 42 deletions

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
index 03307da67c2c..fd92d23c43d9 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
@@ -6,6 +6,7 @@
  */
 
 #include <asm/byteorder.h>
+#include <linux/average.h>
 
 #define RTL8XXXU_DEBUG_REG_WRITE	0x01
 #define RTL8XXXU_DEBUG_REG_READ		0x02
@@ -1858,6 +1859,8 @@ struct rtl8xxxu_priv {
 	int next_mbox;
 	int nr_out_eps;
 
+	/* Ensure no added or deleted stas while iterating */
+	struct mutex sta_mutex;
 	struct mutex h2c_mutex;
 	/* Protect the indirect register accesses of RTL8710BU. */
 	struct mutex syson_indirect_access_mutex;
@@ -1892,7 +1895,6 @@ struct rtl8xxxu_priv {
 	u8 pi_enabled:1;
 	u8 no_pape:1;
 	u8 int_buf[USB_INTR_CONTENT_LENGTH];
-	u8 rssi_level;
 	DECLARE_BITMAP(tx_aggr_started, IEEE80211_NUM_TIDS);
 	DECLARE_BITMAP(tid_tx_operational, IEEE80211_NUM_TIDS);
 
@@ -1913,11 +1915,15 @@ struct rtl8xxxu_priv {
 	DECLARE_BITMAP(cam_map, RTL8XXXU_MAX_SEC_CAM_NUM);
 };
 
+DECLARE_EWMA(rssi, 10, 16);
+
 struct rtl8xxxu_sta_info {
 	struct ieee80211_sta *sta;
 	struct ieee80211_vif *vif;
 
 	u8 macid;
+	struct ewma_rssi avg_rssi;
+	u8 rssi_level;
 };
 
 struct rtl8xxxu_vif {
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 3b954c2fe448..66bf92c164c3 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -3593,7 +3593,7 @@ static int rtl8xxxu_set_mac(struct rtl8xxxu_priv *priv, int port_num)
 		reg = REG_MACID1;
 		break;
 	default:
-		WARN_ONCE("%s: invalid port_num\n", __func__);
+		WARN_ONCE(1, "%s: invalid port_num\n", __func__);
 		return -EINVAL;
 	}
 
@@ -3618,7 +3618,7 @@ static int rtl8xxxu_set_bssid(struct rtl8xxxu_priv *priv, const u8 *bssid, int p
 		reg = REG_BSSID1;
 		break;
 	default:
-		WARN_ONCE("%s: invalid port_num\n", __func__);
+		WARN_ONCE(1, "%s: invalid port_num\n", __func__);
 		return -EINVAL;
 	}
 
@@ -4991,10 +4991,11 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	struct rtl8xxxu_vif *rtlvif = (struct rtl8xxxu_vif *)vif->drv_priv;
 	struct rtl8xxxu_priv *priv = hw->priv;
 	struct device *dev = &priv->udev->dev;
+	struct rtl8xxxu_sta_info *sta_info;
 	struct ieee80211_sta *sta;
 	struct rtl8xxxu_ra_report *rarpt;
+	u8 val8, macid;
 	u32 val32;
-	u8 val8;
 
 	rarpt = &priv->ra_report;
 
@@ -5017,6 +5018,7 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 				rcu_read_unlock();
 				goto error;
 			}
+			macid = rtl8xxxu_get_macid(priv, sta);
 
 			if (sta->deflink.ht_cap.ht_supported)
 				dev_info(dev, "%s: HT supported\n", __func__);
@@ -5037,14 +5039,15 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 				bw = RATE_INFO_BW_40;
 			else
 				bw = RATE_INFO_BW_20;
+
+			sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv;
+			sta_info->rssi_level = RTL8XXXU_RATR_STA_INIT;
 			rcu_read_unlock();
 
 			rtl8xxxu_update_ra_report(rarpt, highest_rate, sgi, bw);
 
-			priv->rssi_level = RTL8XXXU_RATR_STA_INIT;
-
 			priv->fops->update_rate_mask(priv, ramask, 0, sgi,
-						     bw == RATE_INFO_BW_40, 0);
+						     bw == RATE_INFO_BW_40, macid);
 
 			rtl8xxxu_write8(priv, REG_BCN_MAX_ERR, 0xff);
 
@@ -5737,7 +5740,7 @@ static void rtl8xxxu_update_beacon_work_callback(struct work_struct *work)
 
 	if (vif->bss_conf.csa_active) {
 		if (ieee80211_beacon_cntdwn_is_complete(vif)) {
-			ieee80211_csa_finish(vif);
+			ieee80211_csa_finish(vif, 0);
 			return;
 		}
 		schedule_delayed_work(&priv->update_beacon_work,
@@ -6317,6 +6320,76 @@ static void rtl8188e_c2hcmd_callback(struct work_struct *work)
 	}
 }
 
+#define rtl8xxxu_iterate_vifs_atomic(priv, iterator, data)			\
+	ieee80211_iterate_active_interfaces_atomic((priv)->hw,			\
+			IEEE80211_IFACE_ITER_NORMAL, iterator, data)
+
+struct rtl8xxxu_rx_update_rssi_data {
+	struct rtl8xxxu_priv *priv;
+	struct ieee80211_hdr *hdr;
+	struct ieee80211_rx_status *rx_status;
+	u8 *bssid;
+};
+
+static void rtl8xxxu_rx_update_rssi_iter(void *data, u8 *mac,
+					 struct ieee80211_vif *vif)
+{
+	struct rtl8xxxu_rx_update_rssi_data *iter_data = data;
+	struct ieee80211_sta *sta;
+	struct ieee80211_hdr *hdr = iter_data->hdr;
+	struct rtl8xxxu_priv *priv = iter_data->priv;
+	struct rtl8xxxu_sta_info *sta_info;
+	struct ieee80211_rx_status *rx_status = iter_data->rx_status;
+	u8 *bssid = iter_data->bssid;
+
+	if (!ether_addr_equal(vif->bss_conf.bssid, bssid))
+		return;
+
+	if (!(ether_addr_equal(vif->addr, hdr->addr1) ||
+	      ieee80211_is_beacon(hdr->frame_control)))
+		return;
+
+	sta = ieee80211_find_sta_by_ifaddr(priv->hw, hdr->addr2,
+					   vif->addr);
+	if (!sta)
+		return;
+
+	sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv;
+	ewma_rssi_add(&sta_info->avg_rssi, -rx_status->signal);
+}
+
+static inline u8 *get_hdr_bssid(struct ieee80211_hdr *hdr)
+{
+	__le16 fc = hdr->frame_control;
+	u8 *bssid;
+
+	if (ieee80211_has_tods(fc))
+		bssid = hdr->addr1;
+	else if (ieee80211_has_fromds(fc))
+		bssid = hdr->addr2;
+	else
+		bssid = hdr->addr3;
+
+	return bssid;
+}
+
+static void rtl8xxxu_rx_update_rssi(struct rtl8xxxu_priv *priv,
+				    struct ieee80211_rx_status *rx_status,
+				    struct ieee80211_hdr *hdr)
+{
+	struct rtl8xxxu_rx_update_rssi_data data = {};
+
+	if (ieee80211_is_ctl(hdr->frame_control))
+		return;
+
+	data.priv = priv;
+	data.hdr = hdr;
+	data.rx_status = rx_status;
+	data.bssid = get_hdr_bssid(hdr);
+
+	rtl8xxxu_iterate_vifs_atomic(priv, rtl8xxxu_rx_update_rssi_iter, &data);
+}
+
 int rtl8xxxu_parse_rxdesc16(struct rtl8xxxu_priv *priv, struct sk_buff *skb)
 {
 	struct ieee80211_hw *hw = priv->hw;
@@ -6376,18 +6449,26 @@ int rtl8xxxu_parse_rxdesc16(struct rtl8xxxu_priv *priv, struct sk_buff *skb)
 			skb_queue_tail(&priv->c2hcmd_queue, skb);
 			schedule_work(&priv->c2hcmd_work);
 		} else {
+			struct ieee80211_hdr *hdr;
+
 			phy_stats = (struct rtl8723au_phy_stats *)skb->data;
 
 			skb_pull(skb, drvinfo_sz + desc_shift);
 
 			skb_trim(skb, pkt_len);
 
-			if (rx_desc->phy_stats)
+			hdr = (struct ieee80211_hdr *)skb->data;
+			if (rx_desc->phy_stats) {
 				priv->fops->parse_phystats(
 					priv, rx_status, phy_stats,
 					rx_desc->rxmcs,
-					(struct ieee80211_hdr *)skb->data,
+					hdr,
 					rx_desc->crc32 || rx_desc->icverr);
+				if (!rx_desc->crc32 && !rx_desc->icverr)
+					rtl8xxxu_rx_update_rssi(priv,
+								rx_status,
+								hdr);
+			}
 
 			rx_status->mactime = rx_desc->tsfl;
 			rx_status->flag |= RX_FLAG_MACTIME_START;
@@ -6484,10 +6565,15 @@ int rtl8xxxu_parse_rxdesc24(struct rtl8xxxu_priv *priv, struct sk_buff *skb)
 		} else {
 			struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 
-			if (rx_desc->phy_stats)
+			if (rx_desc->phy_stats) {
 				priv->fops->parse_phystats(priv, rx_status, phy_stats,
 							   rx_desc->rxmcs, hdr,
 							   rx_desc->crc32 || rx_desc->icverr);
+				if (!rx_desc->crc32 && !rx_desc->icverr)
+					rtl8xxxu_rx_update_rssi(priv,
+								rx_status,
+								hdr);
+			}
 
 			rx_status->mactime = rx_desc->tsfl;
 			rx_status->flag |= RX_FLAG_MACTIME_START;
@@ -7111,6 +7197,7 @@ static void rtl8xxxu_refresh_rate_mask(struct rtl8xxxu_priv *priv,
 				       int signal, struct ieee80211_sta *sta,
 				       bool force)
 {
+	struct rtl8xxxu_sta_info *sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv;
 	struct ieee80211_hw *hw = priv->hw;
 	u16 wireless_mode;
 	u8 rssi_level, ratr_idx;
@@ -7119,7 +7206,7 @@ static void rtl8xxxu_refresh_rate_mask(struct rtl8xxxu_priv *priv,
 	u8 go_up_gap = 5;
 	u8 macid = rtl8xxxu_get_macid(priv, sta);
 
-	rssi_level = priv->rssi_level;
+	rssi_level = sta_info->rssi_level;
 	snr = rtl8xxxu_signal_to_snr(signal);
 	snr_thresh_high = RTL8XXXU_SNR_THRESH_HIGH;
 	snr_thresh_low = RTL8XXXU_SNR_THRESH_LOW;
@@ -7144,18 +7231,16 @@ static void rtl8xxxu_refresh_rate_mask(struct rtl8xxxu_priv *priv,
 	else
 		rssi_level = RTL8XXXU_RATR_STA_LOW;
 
-	if (rssi_level != priv->rssi_level || force) {
+	if (rssi_level != sta_info->rssi_level || force) {
 		int sgi = 0;
 		u32 rate_bitmap = 0;
 
-		rcu_read_lock();
 		rate_bitmap = (sta->deflink.supp_rates[0] & 0xfff) |
 				(sta->deflink.ht_cap.mcs.rx_mask[0] << 12) |
 				(sta->deflink.ht_cap.mcs.rx_mask[1] << 20);
 		if (sta->deflink.ht_cap.cap &
 		    (IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_SGI_20))
 			sgi = 1;
-		rcu_read_unlock();
 
 		wireless_mode = rtl8xxxu_wireless_mode(hw, sta);
 		switch (wireless_mode) {
@@ -7236,7 +7321,7 @@ static void rtl8xxxu_refresh_rate_mask(struct rtl8xxxu_priv *priv,
 			break;
 		}
 
-		priv->rssi_level = rssi_level;
+		sta_info->rssi_level = rssi_level;
 		priv->fops->update_rate_mask(priv, rate_bitmap, ratr_idx, sgi, txbw_40mhz, macid);
 	}
 }
@@ -7329,40 +7414,60 @@ static void rtl8xxxu_track_cfo(struct rtl8xxxu_priv *priv)
 	rtl8xxxu_set_atc_status(priv, abs(cfo_average) >= CFO_TH_ATC);
 }
 
-static void rtl8xxxu_watchdog_callback(struct work_struct *work)
+static void rtl8xxxu_ra_iter(void *data, struct ieee80211_sta *sta)
 {
-	struct ieee80211_vif *vif;
-	struct rtl8xxxu_priv *priv;
-	int i;
+	struct rtl8xxxu_sta_info *sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv;
+	struct rtl8xxxu_priv *priv = data;
+	int signal = -ewma_rssi_read(&sta_info->avg_rssi);
 
-	priv = container_of(work, struct rtl8xxxu_priv, ra_watchdog.work);
-	for (i = 0; i < ARRAY_SIZE(priv->vifs); i++) {
-		vif = priv->vifs[i];
+	priv->fops->report_rssi(priv, rtl8xxxu_get_macid(priv, sta),
+				rtl8xxxu_signal_to_snr(signal));
+	rtl8xxxu_refresh_rate_mask(priv, signal, sta, false);
+}
 
-		if (!vif || vif->type != NL80211_IFTYPE_STATION)
-			continue;
+struct rtl8xxxu_stas_entry {
+	struct list_head list;
+	struct ieee80211_sta *sta;
+};
 
-		int signal;
-		struct ieee80211_sta *sta;
+struct rtl8xxxu_iter_stas_data {
+	struct rtl8xxxu_priv *priv;
+	struct list_head list;
+};
 
-		rcu_read_lock();
-		sta = ieee80211_find_sta(vif, vif->bss_conf.bssid);
-		if (!sta) {
-			struct device *dev = &priv->udev->dev;
+static void rtl8xxxu_collect_sta_iter(void *data, struct ieee80211_sta *sta)
+{
+	struct rtl8xxxu_iter_stas_data *iter_stas = data;
+	struct rtl8xxxu_stas_entry *stas_entry;
 
-			dev_dbg(dev, "%s: no sta found\n", __func__);
-			rcu_read_unlock();
-			continue;
-		}
-		rcu_read_unlock();
+	stas_entry = kmalloc(sizeof(*stas_entry), GFP_ATOMIC);
+	if (!stas_entry)
+		return;
 
-		signal = ieee80211_ave_rssi(vif);
+	stas_entry->sta = sta;
+	list_add_tail(&stas_entry->list, &iter_stas->list);
+}
 
-		priv->fops->report_rssi(priv, rtl8xxxu_get_macid(priv, sta),
-					rtl8xxxu_signal_to_snr(signal));
+static void rtl8xxxu_watchdog_callback(struct work_struct *work)
+{
+
+	struct rtl8xxxu_iter_stas_data iter_data;
+	struct rtl8xxxu_stas_entry *sta_entry, *tmp;
+	struct rtl8xxxu_priv *priv;
 
-		rtl8xxxu_refresh_rate_mask(priv, signal, sta, false);
+	priv = container_of(work, struct rtl8xxxu_priv, ra_watchdog.work);
+	iter_data.priv = priv;
+	INIT_LIST_HEAD(&iter_data.list);
+
+	mutex_lock(&priv->sta_mutex);
+	ieee80211_iterate_stations_atomic(priv->hw, rtl8xxxu_collect_sta_iter,
+					  &iter_data);
+	list_for_each_entry_safe(sta_entry, tmp, &iter_data.list, list) {
+		list_del_init(&sta_entry->list);
+		rtl8xxxu_ra_iter(priv, sta_entry->sta);
+		kfree(sta_entry);
 	}
+	mutex_unlock(&priv->sta_mutex);
 
 	if (priv->fops->set_crystal_cap)
 		rtl8xxxu_track_cfo(priv);
@@ -7504,10 +7609,15 @@ static int rtl8xxxu_sta_add(struct ieee80211_hw *hw,
 	struct rtl8xxxu_vif *rtlvif = (struct rtl8xxxu_vif *)vif->drv_priv;
 	struct rtl8xxxu_priv *priv = hw->priv;
 
+	mutex_lock(&priv->sta_mutex);
+	ewma_rssi_init(&sta_info->avg_rssi);
 	if (vif->type == NL80211_IFTYPE_AP) {
+		sta_info->rssi_level = RTL8XXXU_RATR_STA_INIT;
 		sta_info->macid = rtl8xxxu_acquire_macid(priv);
-		if (sta_info->macid >= RTL8XXXU_MAX_MAC_ID_NUM)
+		if (sta_info->macid >= RTL8XXXU_MAX_MAC_ID_NUM) {
+			mutex_unlock(&priv->sta_mutex);
 			return -ENOSPC;
+		}
 
 		rtl8xxxu_refresh_rate_mask(priv, 0, sta, true);
 		priv->fops->report_connect(priv, sta_info->macid, H2C_MACID_ROLE_STA, true);
@@ -7523,6 +7633,7 @@ static int rtl8xxxu_sta_add(struct ieee80211_hw *hw,
 			break;
 		}
 	}
+	mutex_unlock(&priv->sta_mutex);
 
 	return 0;
 }
@@ -7534,13 +7645,19 @@ static int rtl8xxxu_sta_remove(struct ieee80211_hw *hw,
 	struct rtl8xxxu_sta_info *sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv;
 	struct rtl8xxxu_priv *priv = hw->priv;
 
+	mutex_lock(&priv->sta_mutex);
 	if (vif->type == NL80211_IFTYPE_AP)
 		rtl8xxxu_release_macid(priv, sta_info->macid);
+	mutex_unlock(&priv->sta_mutex);
 
 	return 0;
 }
 
 static const struct ieee80211_ops rtl8xxxu_ops = {
+	.add_chanctx = ieee80211_emulate_add_chanctx,
+	.remove_chanctx = ieee80211_emulate_remove_chanctx,
+	.change_chanctx = ieee80211_emulate_change_chanctx,
+	.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
 	.tx = rtl8xxxu_tx,
 	.wake_tx_queue = ieee80211_handle_wake_tx_queue,
 	.add_interface = rtl8xxxu_add_interface,
@@ -7734,7 +7851,7 @@ static int rtl8xxxu_probe(struct usb_interface *interface,
 			untested = 0;
 		break;
 	case 0x2357:
-		if (id->idProduct == 0x0109)
+		if (id->idProduct == 0x0109 || id->idProduct == 0x0135)
 			untested = 0;
 		break;
 	case 0x0b05:
@@ -7767,6 +7884,7 @@ static int rtl8xxxu_probe(struct usb_interface *interface,
 	mutex_init(&priv->usb_buf_mutex);
 	mutex_init(&priv->syson_indirect_access_mutex);
 	mutex_init(&priv->h2c_mutex);
+	mutex_init(&priv->sta_mutex);
 	INIT_LIST_HEAD(&priv->tx_urb_free_list);
 	spin_lock_init(&priv->tx_urb_lock);
 	INIT_LIST_HEAD(&priv->rx_urb_pending_list);
@@ -8027,6 +8145,9 @@ static const struct usb_device_id dev_table[] = {
 	.driver_info = (unsigned long)&rtl8192fu_fops},
 {USB_DEVICE_AND_INTERFACE_INFO(USB_VENDOR_ID_REALTEK, 0x318b, 0xff, 0xff, 0xff),
 	.driver_info = (unsigned long)&rtl8192fu_fops},
+/* TP-Link TL-WN823N V2 */
+{USB_DEVICE_AND_INTERFACE_INFO(0x2357, 0x0135, 0xff, 0xff, 0xff),
+	.driver_info = (unsigned long)&rtl8192fu_fops},
 #ifdef CONFIG_RTL8XXXU_UNTESTED
 /* Still supported by rtlwifi */
 {USB_DEVICE_AND_INTERFACE_INFO(USB_VENDOR_ID_REALTEK, 0x8176, 0xff, 0xff, 0xff),