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* [PATCH 00/15] mac80211 MLO updates
@ 2022-06-01  7:39 Johannes Berg
  2022-06-01  7:39 ` [PATCH 01/15] mac80211: split bss_info_changed method Johannes Berg
                   ` (14 more replies)
  0 siblings, 15 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless

Hi,

Here's the next (large) set of mac80211 MLO updates, though it's of
course still _far_ from complete :-)

Next on my list:
 - auth/assoc
 - datapath

johannes



^ permalink raw reply	[flat|nested] 31+ messages in thread

* [PATCH 01/15] mac80211: split bss_info_changed method
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01 19:31   ` Jeff Johnson
  2022-10-18  8:47   ` Wen Gong
  2022-06-01  7:39 ` [PATCH 02/15] mac80211: add per-link configuration pointer Johannes Berg
                   ` (13 subsequent siblings)
  14 siblings, 2 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

Split the bss_info_changed method to vif_cfg_changed and
link_info_changed, with the latter getting a link ID.
Also change the 'changed' parameter to u64 already, we
know we need that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/admtek/adm8211.c         |   2 +-
 drivers/net/wireless/ath/ar5523/ar5523.c      |   2 +-
 drivers/net/wireless/ath/ath10k/mac.c         |   2 +-
 drivers/net/wireless/ath/ath11k/mac.c         |   2 +-
 drivers/net/wireless/ath/ath5k/mac80211-ops.c |   2 +-
 drivers/net/wireless/ath/ath9k/htc_drv_main.c |   2 +-
 drivers/net/wireless/ath/ath9k/main.c         |   2 +-
 drivers/net/wireless/ath/carl9170/main.c      |   2 +-
 drivers/net/wireless/ath/wcn36xx/main.c       |   6 +-
 drivers/net/wireless/atmel/at76c50x-usb.c     |   2 +-
 drivers/net/wireless/broadcom/b43/main.c      |   4 +-
 .../net/wireless/broadcom/b43legacy/main.c    |   2 +-
 .../broadcom/brcm80211/brcmsmac/mac80211_if.c |   2 +-
 drivers/net/wireless/intel/iwlegacy/common.c  |   7 +-
 drivers/net/wireless/intel/iwlegacy/common.h  |   2 +-
 drivers/net/wireless/intel/iwlwifi/dvm/agn.h  |   2 +-
 drivers/net/wireless/intel/iwlwifi/dvm/rxon.c |   2 +-
 .../net/wireless/intel/iwlwifi/mvm/mac80211.c |   6 +-
 drivers/net/wireless/intersil/p54/main.c      |   2 +-
 drivers/net/wireless/mac80211_hwsim.c         |   6 +-
 .../net/wireless/marvell/libertas_tf/main.c   |   2 +-
 drivers/net/wireless/marvell/mwl8k.c          |   2 +-
 .../net/wireless/mediatek/mt76/mt7603/main.c  |   2 +-
 .../net/wireless/mediatek/mt76/mt7615/main.c  |   2 +-
 drivers/net/wireless/mediatek/mt76/mt76x02.h  |   2 +-
 .../net/wireless/mediatek/mt76/mt76x02_util.c |   2 +-
 .../net/wireless/mediatek/mt76/mt7915/main.c  |   2 +-
 .../net/wireless/mediatek/mt76/mt7921/main.c  |   2 +-
 drivers/net/wireless/mediatek/mt7601u/main.c  |   2 +-
 drivers/net/wireless/purelifi/plfxlc/mac.c    |   5 +-
 drivers/net/wireless/ralink/rt2x00/rt2x00.h   |   2 +-
 .../net/wireless/ralink/rt2x00/rt2x00mac.c    |   2 +-
 .../wireless/realtek/rtl818x/rtl8180/dev.c    |   2 +-
 .../wireless/realtek/rtl818x/rtl8187/dev.c    |   2 +-
 .../wireless/realtek/rtl8xxxu/rtl8xxxu_core.c |   2 +-
 drivers/net/wireless/realtek/rtlwifi/core.c   |   2 +-
 drivers/net/wireless/realtek/rtw88/mac80211.c |   2 +-
 drivers/net/wireless/realtek/rtw89/mac80211.c |   2 +-
 drivers/net/wireless/rsi/rsi_91x_mac80211.c   |   2 +-
 drivers/net/wireless/silabs/wfx/sta.c         |   2 +-
 drivers/net/wireless/silabs/wfx/sta.h         |   2 +-
 drivers/net/wireless/st/cw1200/sta.c          |   4 +-
 drivers/net/wireless/st/cw1200/sta.h          |   2 +-
 drivers/net/wireless/ti/wl1251/main.c         |   2 +-
 drivers/net/wireless/ti/wlcore/main.c         |   2 +-
 drivers/net/wireless/zydas/zd1211rw/zd_mac.c  |   4 +-
 drivers/staging/vt6655/device_main.c          |   2 +-
 drivers/staging/vt6656/main_usb.c             |   2 +-
 include/net/mac80211.h                        |  28 +++-
 net/mac80211/cfg.c                            |  31 ++--
 net/mac80211/chan.c                           |   9 +-
 net/mac80211/driver-ops.h                     |  35 ++++-
 net/mac80211/ibss.c                           |   2 +-
 net/mac80211/ieee80211_i.h                    |   6 +-
 net/mac80211/iface.c                          |   5 +-
 net/mac80211/main.c                           |  80 +++++++++-
 net/mac80211/mesh.c                           |   6 +-
 net/mac80211/mlme.c                           |  16 +-
 net/mac80211/offchannel.c                     |   8 +-
 net/mac80211/sta_info.c                       |   2 +-
 net/mac80211/tdls.c                           |   2 +-
 net/mac80211/trace.h                          | 138 +++++++++++-------
 net/mac80211/util.c                           |   4 +-
 net/mac80211/vht.c                            |   2 +-
 64 files changed, 324 insertions(+), 172 deletions(-)

diff --git a/drivers/net/wireless/admtek/adm8211.c b/drivers/net/wireless/admtek/adm8211.c
index 2db9c948c0fc..6bee16b207d1 100644
--- a/drivers/net/wireless/admtek/adm8211.c
+++ b/drivers/net/wireless/admtek/adm8211.c
@@ -1311,7 +1311,7 @@ static int adm8211_config(struct ieee80211_hw *dev, u32 changed)
 static void adm8211_bss_info_changed(struct ieee80211_hw *dev,
 				     struct ieee80211_vif *vif,
 				     struct ieee80211_bss_conf *conf,
-				     u32 changes)
+				     u64 changes)
 {
 	struct adm8211_priv *priv = dev->priv;
 
diff --git a/drivers/net/wireless/ath/ar5523/ar5523.c b/drivers/net/wireless/ath/ar5523/ar5523.c
index 4cd06a0942d4..6f937d2cc126 100644
--- a/drivers/net/wireless/ath/ar5523/ar5523.c
+++ b/drivers/net/wireless/ath/ar5523/ar5523.c
@@ -1273,7 +1273,7 @@ static int ar5523_write_associd(struct ar5523 *ar, struct ieee80211_vif *vif)
 static void ar5523_bss_info_changed(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
 				    struct ieee80211_bss_conf *bss,
-				    u32 changed)
+				    u64 changed)
 {
 	struct ar5523 *ar = hw->priv;
 	int error;
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 409777a15dcb..bc0135868792 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -6034,7 +6034,7 @@ static void ath10k_recalculate_mgmt_rate(struct ath10k *ar,
 static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
 				    struct ieee80211_bss_conf *info,
-				    u32 changed)
+				    u64 changed)
 {
 	struct ath10k *ar = hw->priv;
 	struct ath10k_vif *arvif = (void *)vif->drv_priv;
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 7ec0df2fc107..be102357317b 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -3091,7 +3091,7 @@ static int ath11k_mac_config_obss_pd(struct ath11k *ar,
 static void ath11k_mac_op_bss_info_changed(struct ieee80211_hw *hw,
 					   struct ieee80211_vif *vif,
 					   struct ieee80211_bss_conf *info,
-					   u32 changed)
+					   u64 changed)
 {
 	struct ath11k *ar = hw->priv;
 	struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
diff --git a/drivers/net/wireless/ath/ath5k/mac80211-ops.c b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
index 0df0fa1da181..8da232e81518 100644
--- a/drivers/net/wireless/ath/ath5k/mac80211-ops.c
+++ b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
@@ -250,7 +250,7 @@ ath5k_config(struct ieee80211_hw *hw, u32 changed)
 
 static void
 ath5k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		       struct ieee80211_bss_conf *bss_conf, u32 changes)
+		       struct ieee80211_bss_conf *bss_conf, u64 changes)
 {
 	struct ath5k_vif *avf = (void *)vif->drv_priv;
 	struct ath5k_hw *ah = hw->priv;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 3a5ec4da6a38..14d713e03872 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -1509,7 +1509,7 @@ static void ath9k_htc_choose_set_bssid(struct ath9k_htc_priv *priv)
 static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
 				       struct ieee80211_bss_conf *bss_conf,
-				       u32 changed)
+				       u64 changed)
 {
 	struct ath9k_htc_priv *priv = hw->priv;
 	struct ath_hw *ah = priv->ah;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 56c2681e5192..729f8ee9644d 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1863,7 +1863,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
 static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 				   struct ieee80211_vif *vif,
 				   struct ieee80211_bss_conf *bss_conf,
-				   u32 changed)
+				   u64 changed)
 {
 #define CHECK_ANI				\
 	(BSS_CHANGED_ASSOC |			\
diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index e28a5f3085c0..3d881028bd00 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -1032,7 +1032,7 @@ static void carl9170_op_configure_filter(struct ieee80211_hw *hw,
 static void carl9170_op_bss_info_changed(struct ieee80211_hw *hw,
 					 struct ieee80211_vif *vif,
 					 struct ieee80211_bss_conf *bss_conf,
-					 u32 changed)
+					 u64 changed)
 {
 	struct ar9170 *ar = hw->priv;
 	struct ath_common *common = &ar->common;
diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index 72ba2e2fc93a..5f5006ac4ba8 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -872,7 +872,7 @@ void wcn36xx_set_default_rates_v1(struct wcn36xx_hal_supported_rates_v1 *rates)
 static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif,
 				     struct ieee80211_bss_conf *bss_conf,
-				     u32 changed)
+				     u64 changed)
 {
 	struct wcn36xx *wcn = hw->priv;
 	struct sk_buff *skb = NULL;
@@ -880,8 +880,8 @@ static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
 	enum wcn36xx_hal_link_state link_state;
 	struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
 
-	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
-		    vif, changed);
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%llx\n",
+		    vif, (unsigned long long)changed);
 
 	mutex_lock(&wcn->conf_mutex);
 
diff --git a/drivers/net/wireless/atmel/at76c50x-usb.c b/drivers/net/wireless/atmel/at76c50x-usb.c
index 7582761c61e2..24e609c1f523 100644
--- a/drivers/net/wireless/atmel/at76c50x-usb.c
+++ b/drivers/net/wireless/atmel/at76c50x-usb.c
@@ -2033,7 +2033,7 @@ static int at76_config(struct ieee80211_hw *hw, u32 changed)
 static void at76_bss_info_changed(struct ieee80211_hw *hw,
 				  struct ieee80211_vif *vif,
 				  struct ieee80211_bss_conf *conf,
-				  u32 changed)
+				  u64 changed)
 {
 	struct at76_priv *priv = hw->priv;
 
diff --git a/drivers/net/wireless/broadcom/b43/main.c b/drivers/net/wireless/broadcom/b43/main.c
index 17bcec5f3ff7..e3121a9d0579 100644
--- a/drivers/net/wireless/broadcom/b43/main.c
+++ b/drivers/net/wireless/broadcom/b43/main.c
@@ -366,7 +366,7 @@ static int b43_wireless_core_start(struct b43_wldev *dev);
 static void b43_op_bss_info_changed(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
 				    struct ieee80211_bss_conf *conf,
-				    u32 changed);
+				    u64 changed);
 
 static int b43_ratelimit(struct b43_wl *wl)
 {
@@ -4097,7 +4097,7 @@ static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates)
 static void b43_op_bss_info_changed(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
 				    struct ieee80211_bss_conf *conf,
-				    u32 changed)
+				    u64 changed)
 {
 	struct b43_wl *wl = hw_to_b43_wl(hw);
 	struct b43_wldev *dev;
diff --git a/drivers/net/wireless/broadcom/b43legacy/main.c b/drivers/net/wireless/broadcom/b43legacy/main.c
index eec3af9c3745..96d5a034c09b 100644
--- a/drivers/net/wireless/broadcom/b43legacy/main.c
+++ b/drivers/net/wireless/broadcom/b43legacy/main.c
@@ -2806,7 +2806,7 @@ static void b43legacy_update_basic_rates(struct b43legacy_wldev *dev, u32 brates
 static void b43legacy_op_bss_info_changed(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
 				    struct ieee80211_bss_conf *conf,
-				    u32 changed)
+				    u64 changed)
 {
 	struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
 	struct b43legacy_wldev *dev;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
index e6cd638a85d6..fd3c131c622c 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
@@ -582,7 +582,7 @@ static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
 static void
 brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
 			struct ieee80211_vif *vif,
-			struct ieee80211_bss_conf *info, u32 changed)
+			struct ieee80211_bss_conf *info, u64 changed)
 {
 	struct brcms_info *wl = hw->priv;
 	struct bcma_device *core = wl->wlc->hw->d11core;
diff --git a/drivers/net/wireless/intel/iwlegacy/common.c b/drivers/net/wireless/intel/iwlegacy/common.c
index b01945415be6..6975f0297f03 100644
--- a/drivers/net/wireless/intel/iwlegacy/common.c
+++ b/drivers/net/wireless/intel/iwlegacy/common.c
@@ -5311,13 +5311,13 @@ il_beacon_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 
 void
 il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			struct ieee80211_bss_conf *bss_conf, u32 changes)
+			struct ieee80211_bss_conf *bss_conf, u64 changes)
 {
 	struct il_priv *il = hw->priv;
 	int ret;
 
 	mutex_lock(&il->mutex);
-	D_MAC80211("enter: changes 0x%x\n", changes);
+	D_MAC80211("enter: changes 0x%llx\n", (unsigned long long)changes);
 
 	if (!il_is_alive(il)) {
 		D_MAC80211("leave - not alive\n");
@@ -5438,7 +5438,8 @@ il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	}
 
 	if (changes && il_is_associated(il) && vif->cfg.aid) {
-		D_MAC80211("Changes (%#x) while associated\n", changes);
+		D_MAC80211("Changes (%#llx) while associated\n",
+			   (unsigned long long)changes);
 		ret = il_send_rxon_assoc(il);
 		if (!ret) {
 			/* Sync active_rxon with latest change. */
diff --git a/drivers/net/wireless/intel/iwlegacy/common.h b/drivers/net/wireless/intel/iwlegacy/common.h
index 40877ef1fbf2..d1383b4f0f05 100644
--- a/drivers/net/wireless/intel/iwlegacy/common.h
+++ b/drivers/net/wireless/intel/iwlegacy/common.h
@@ -1947,7 +1947,7 @@ il_get_hw_mode(struct il_priv *il, enum nl80211_band band)
 int il_mac_config(struct ieee80211_hw *hw, u32 changed);
 void il_mac_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
 void il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			     struct ieee80211_bss_conf *bss_conf, u32 changes);
+			     struct ieee80211_bss_conf *bss_conf, u64 changes);
 void il_tx_cmd_protection(struct il_priv *il, struct ieee80211_tx_info *info,
 			  __le16 fc, __le32 *tx_flags);
 
diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/agn.h b/drivers/net/wireless/intel/iwlwifi/dvm/agn.h
index abb8696ba294..411a6f6638b4 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/agn.h
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/agn.h
@@ -92,7 +92,7 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed);
 void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
 			     struct ieee80211_vif *vif,
 			     struct ieee80211_bss_conf *bss_conf,
-			     u32 changes);
+			     u64 changes);
 void iwlagn_config_ht40(struct ieee80211_conf *conf,
 			struct iwl_rxon_context *ctx);
 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rxon.c b/drivers/net/wireless/intel/iwlwifi/dvm/rxon.c
index 17a14970edec..45e382fe45a2 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/rxon.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/rxon.c
@@ -1383,7 +1383,7 @@ static void iwlagn_chain_noise_reset(struct iwl_priv *priv)
 void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
 			     struct ieee80211_vif *vif,
 			     struct ieee80211_bss_conf *bss_conf,
-			     u32 changes)
+			     u64 changes)
 {
 	struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 	struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index b5257b4fd000..586208506275 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -2181,7 +2181,7 @@ static void iwl_mvm_protect_assoc(struct iwl_mvm *mvm,
 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 					     struct ieee80211_vif *vif,
 					     struct ieee80211_bss_conf *bss_conf,
-					     u32 changes)
+					     u64 changes)
 {
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	int ret;
@@ -2590,7 +2590,7 @@ static void
 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
 				 struct ieee80211_vif *vif,
 				 struct ieee80211_bss_conf *bss_conf,
-				 u32 changes)
+				 u64 changes)
 {
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 
@@ -2621,7 +2621,7 @@ iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif,
 				     struct ieee80211_bss_conf *bss_conf,
-				     u32 changes)
+				     u64 changes)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 
diff --git a/drivers/net/wireless/intersil/p54/main.c b/drivers/net/wireless/intersil/p54/main.c
index a9dfe6a3da0d..cc6769a4fec7 100644
--- a/drivers/net/wireless/intersil/p54/main.c
+++ b/drivers/net/wireless/intersil/p54/main.c
@@ -449,7 +449,7 @@ static int p54_get_stats(struct ieee80211_hw *dev,
 static void p54_bss_info_changed(struct ieee80211_hw *dev,
 				 struct ieee80211_vif *vif,
 				 struct ieee80211_bss_conf *info,
-				 u32 changed)
+				 u64 changed)
 {
 	struct p54_common *priv = dev->priv;
 
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index b034d34745ab..1bd96b504956 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2101,15 +2101,15 @@ static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
 					    struct ieee80211_vif *vif,
 					    struct ieee80211_bss_conf *info,
-					    u32 changed)
+					    u64 changed)
 {
 	struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 	struct mac80211_hwsim_data *data = hw->priv;
 
 	hwsim_check_magic(vif);
 
-	wiphy_dbg(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
-		  __func__, changed, vif->addr);
+	wiphy_dbg(hw->wiphy, "%s(changed=0x%llx vif->addr=%pM)\n",
+		  __func__, (unsigned long long)changed, vif->addr);
 
 	if (changed & BSS_CHANGED_BSSID) {
 		wiphy_dbg(hw->wiphy, "%s: BSSID changed: %pM\n",
diff --git a/drivers/net/wireless/marvell/libertas_tf/main.c b/drivers/net/wireless/marvell/libertas_tf/main.c
index 02a1e1f547d8..21c3e0bdc444 100644
--- a/drivers/net/wireless/marvell/libertas_tf/main.c
+++ b/drivers/net/wireless/marvell/libertas_tf/main.c
@@ -417,7 +417,7 @@ static void lbtf_op_configure_filter(struct ieee80211_hw *hw,
 static void lbtf_op_bss_info_changed(struct ieee80211_hw *hw,
 			struct ieee80211_vif *vif,
 			struct ieee80211_bss_conf *bss_conf,
-			u32 changes)
+			u64 changes)
 {
 	struct lbtf_private *priv = hw->priv;
 	struct sk_buff *beacon;
diff --git a/drivers/net/wireless/marvell/mwl8k.c b/drivers/net/wireless/marvell/mwl8k.c
index 5f1bcfb5e3f6..7eef3a74d124 100644
--- a/drivers/net/wireless/marvell/mwl8k.c
+++ b/drivers/net/wireless/marvell/mwl8k.c
@@ -5163,7 +5163,7 @@ mwl8k_bss_info_changed_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 
 static void
 mwl8k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-		       struct ieee80211_bss_conf *info, u32 changed)
+		       struct ieee80211_bss_conf *info, u64 changed)
 {
 	if (vif->type == NL80211_IFTYPE_STATION)
 		mwl8k_bss_info_changed_sta(hw, vif, info, changed);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/main.c b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
index 1f14ecda1f55..088c0a4cf774 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
@@ -297,7 +297,7 @@ mt7603_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
 
 static void
 mt7603_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			struct ieee80211_bss_conf *info, u32 changed)
+			struct ieee80211_bss_conf *info, u64 changed)
 {
 	struct mt7603_dev *dev = hw->priv;
 	struct mt7603_vif *mvif = (struct mt7603_vif *)vif->drv_priv;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index d992fdea0f32..277c22a4d049 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -576,7 +576,7 @@ static void mt7615_configure_filter(struct ieee80211_hw *hw,
 static void mt7615_bss_info_changed(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
 				    struct ieee80211_bss_conf *info,
-				    u32 changed)
+				    u64 changed)
 {
 	struct mt7615_dev *dev = mt7615_hw_dev(hw);
 	struct mt7615_phy *phy = mt7615_hw_phy(hw);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02.h b/drivers/net/wireless/mediatek/mt76/mt76x02.h
index f76fd22ee035..74ad418f5a70 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02.h
@@ -187,7 +187,7 @@ void mt76x02_sw_scan_complete(struct ieee80211_hw *hw,
 void mt76x02_sta_ps(struct mt76_dev *dev, struct ieee80211_sta *sta, bool ps);
 void mt76x02_bss_info_changed(struct ieee80211_hw *hw,
 			      struct ieee80211_vif *vif,
-			      struct ieee80211_bss_conf *info, u32 changed);
+			      struct ieee80211_bss_conf *info, u64 changed);
 void mt76x02_reconfig_complete(struct ieee80211_hw *hw,
 			       enum ieee80211_reconfig_type reconfig_type);
 
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
index 5bd0a0bae688..a0e2d042751b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
@@ -636,7 +636,7 @@ EXPORT_SYMBOL_GPL(mt76x02_sta_ps);
 void mt76x02_bss_info_changed(struct ieee80211_hw *hw,
 			      struct ieee80211_vif *vif,
 			      struct ieee80211_bss_conf *info,
-			      u32 changed)
+			      u64 changed)
 {
 	struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
 	struct mt76x02_dev *dev = hw->priv;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
index 05327b0b6fc3..fbeac9aa2af6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
@@ -573,7 +573,7 @@ mt7915_update_bss_color(struct ieee80211_hw *hw,
 static void mt7915_bss_info_changed(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
 				    struct ieee80211_bss_conf *info,
-				    u32 changed)
+				    u64 changed)
 {
 	struct mt7915_phy *phy = mt7915_hw_phy(hw);
 	struct mt7915_dev *dev = mt7915_hw_dev(hw);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index 8532033794bd..63583605d1cd 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -637,7 +637,7 @@ static void mt7921_configure_filter(struct ieee80211_hw *hw,
 static void mt7921_bss_info_changed(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
 				    struct ieee80211_bss_conf *info,
-				    u32 changed)
+				    u64 changed)
 {
 	struct mt7921_phy *phy = mt7921_hw_phy(hw);
 	struct mt7921_dev *dev = mt7921_hw_dev(hw);
diff --git a/drivers/net/wireless/mediatek/mt7601u/main.c b/drivers/net/wireless/mediatek/mt7601u/main.c
index 671d8897ae76..6c9c7a61c5c9 100644
--- a/drivers/net/wireless/mediatek/mt7601u/main.c
+++ b/drivers/net/wireless/mediatek/mt7601u/main.c
@@ -132,7 +132,7 @@ mt76_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
 
 static void
 mt7601u_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			 struct ieee80211_bss_conf *info, u32 changed)
+			 struct ieee80211_bss_conf *info, u64 changed)
 {
 	struct mt7601u_dev *dev = hw->priv;
 
diff --git a/drivers/net/wireless/purelifi/plfxlc/mac.c b/drivers/net/wireless/purelifi/plfxlc/mac.c
index 90e552532701..b546a963b0a3 100644
--- a/drivers/net/wireless/purelifi/plfxlc/mac.c
+++ b/drivers/net/wireless/purelifi/plfxlc/mac.c
@@ -587,12 +587,13 @@ static void plfxlc_op_configure_filter(struct ieee80211_hw *hw,
 static void plfxlc_op_bss_info_changed(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
 				       struct ieee80211_bss_conf *bss_conf,
-				       u32 changes)
+				       u64 changes)
 {
 	struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
 	int associated;
 
-	dev_dbg(plfxlc_mac_dev(mac), "changes: %x\n", changes);
+	dev_dbg(plfxlc_mac_dev(mac), "changes: %llx\n",
+		(unsigned long long)changes);
 
 	if (mac->type != NL80211_IFTYPE_ADHOC) { /* for STATION */
 		associated = is_valid_ether_addr(bss_conf->bssid);
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00.h b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
index 9f6fc40649be..918e0477bb7d 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
@@ -1479,7 +1479,7 @@ int rt2x00mac_get_stats(struct ieee80211_hw *hw,
 void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
 				struct ieee80211_vif *vif,
 				struct ieee80211_bss_conf *bss_conf,
-				u32 changes);
+				u64 changes);
 int rt2x00mac_conf_tx(struct ieee80211_hw *hw,
 		      struct ieee80211_vif *vif, u16 queue,
 		      const struct ieee80211_tx_queue_params *params);
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
index 660554a01894..6205d22765c7 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
@@ -574,7 +574,7 @@ EXPORT_SYMBOL_GPL(rt2x00mac_get_stats);
 void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
 				struct ieee80211_vif *vif,
 				struct ieee80211_bss_conf *bss_conf,
-				u32 changes)
+				u64 changes)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
 	struct rt2x00_intf *intf = vif_to_intf(vif);
diff --git a/drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c b/drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c
index 025619cd14e8..10e8fdc31879 100644
--- a/drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c
+++ b/drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c
@@ -1500,7 +1500,7 @@ static void rtl8180_conf_erp(struct ieee80211_hw *dev,
 static void rtl8180_bss_info_changed(struct ieee80211_hw *dev,
 				     struct ieee80211_vif *vif,
 				     struct ieee80211_bss_conf *info,
-				     u32 changed)
+				     u64 changed)
 {
 	struct rtl8180_priv *priv = dev->priv;
 	struct rtl8180_vif *vif_priv;
diff --git a/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c b/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c
index eb68b2d3caa1..8ab65c888baf 100644
--- a/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c
+++ b/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c
@@ -1251,7 +1251,7 @@ static void rtl8187_conf_erp(struct rtl8187_priv *priv, bool use_short_slot,
 static void rtl8187_bss_info_changed(struct ieee80211_hw *dev,
 				     struct ieee80211_vif *vif,
 				     struct ieee80211_bss_conf *info,
-				     u32 changed)
+				     u64 changed)
 {
 	struct rtl8187_priv *priv = dev->priv;
 	struct rtl8187_vif *vif_priv;
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 0239e12ec8a5..65c4cb1e030c 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -4558,7 +4558,7 @@ rtl8xxxu_wireless_mode(struct ieee80211_hw *hw, struct ieee80211_sta *sta)
 
 static void
 rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			  struct ieee80211_bss_conf *bss_conf, u32 changed)
+			  struct ieee80211_bss_conf *bss_conf, u64 changed)
 {
 	struct rtl8xxxu_priv *priv = hw->priv;
 	struct device *dev = &priv->udev->dev;
diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
index 5177eb02740e..2f7fd8888d3a 100644
--- a/drivers/net/wireless/realtek/rtlwifi/core.c
+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
@@ -1040,7 +1040,7 @@ EXPORT_SYMBOL_GPL(rtl_update_beacon_work_callback);
 static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
 				    struct ieee80211_bss_conf *bss_conf,
-				    u32 changed)
+				    u64 changed)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
diff --git a/drivers/net/wireless/realtek/rtw88/mac80211.c b/drivers/net/wireless/realtek/rtw88/mac80211.c
index 52e2c93d02f0..3ef839035bcf 100644
--- a/drivers/net/wireless/realtek/rtw88/mac80211.c
+++ b/drivers/net/wireless/realtek/rtw88/mac80211.c
@@ -355,7 +355,7 @@ static void rtw_conf_tx(struct rtw_dev *rtwdev,
 static void rtw_ops_bss_info_changed(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif,
 				     struct ieee80211_bss_conf *conf,
-				     u32 changed)
+				     u64 changed)
 {
 	struct rtw_dev *rtwdev = hw->priv;
 	struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
diff --git a/drivers/net/wireless/realtek/rtw89/mac80211.c b/drivers/net/wireless/realtek/rtw89/mac80211.c
index 6fc125deba28..4cbd2615c636 100644
--- a/drivers/net/wireless/realtek/rtw89/mac80211.c
+++ b/drivers/net/wireless/realtek/rtw89/mac80211.c
@@ -336,7 +336,7 @@ static void rtw89_station_mode_sta_assoc(struct rtw89_dev *rtwdev,
 static void rtw89_ops_bss_info_changed(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
 				       struct ieee80211_bss_conf *conf,
-				       u32 changed)
+				       u64 changed)
 {
 	struct rtw89_dev *rtwdev = hw->priv;
 	struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv;
diff --git a/drivers/net/wireless/rsi/rsi_91x_mac80211.c b/drivers/net/wireless/rsi/rsi_91x_mac80211.c
index d4b3834388ab..1dff3d263382 100644
--- a/drivers/net/wireless/rsi/rsi_91x_mac80211.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mac80211.c
@@ -783,7 +783,7 @@ static void rsi_switch_channel(struct rsi_hw *adapter,
 static void rsi_mac80211_bss_info_changed(struct ieee80211_hw *hw,
 					  struct ieee80211_vif *vif,
 					  struct ieee80211_bss_conf *bss_conf,
-					  u32 changed)
+					  u64 changed)
 {
 	struct rsi_hw *adapter = hw->priv;
 	struct rsi_common *common = adapter->priv;
diff --git a/drivers/net/wireless/silabs/wfx/sta.c b/drivers/net/wireless/silabs/wfx/sta.c
index 3fc55c0c0b4d..6fb4ba1282c9 100644
--- a/drivers/net/wireless/silabs/wfx/sta.c
+++ b/drivers/net/wireless/silabs/wfx/sta.c
@@ -506,7 +506,7 @@ static void wfx_enable_beacon(struct wfx_vif *wvif, bool enable)
 }
 
 void wfx_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			  struct ieee80211_bss_conf *info, u32 changed)
+			  struct ieee80211_bss_conf *info, u64 changed)
 {
 	struct wfx_dev *wdev = hw->priv;
 	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
diff --git a/drivers/net/wireless/silabs/wfx/sta.h b/drivers/net/wireless/silabs/wfx/sta.h
index c69b2227e9ac..d9c6bd632b20 100644
--- a/drivers/net/wireless/silabs/wfx/sta.h
+++ b/drivers/net/wireless/silabs/wfx/sta.h
@@ -36,7 +36,7 @@ void wfx_leave_ibss(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
 int wfx_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		u16 queue, const struct ieee80211_tx_queue_params *params);
 void wfx_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
-			  struct ieee80211_bss_conf *info, u32 changed);
+			  struct ieee80211_bss_conf *info, u64 changed);
 int wfx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta);
 int wfx_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta);
 void wfx_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
diff --git a/drivers/net/wireless/st/cw1200/sta.c b/drivers/net/wireless/st/cw1200/sta.c
index 3f48def51ebc..8eaeb39217ee 100644
--- a/drivers/net/wireless/st/cw1200/sta.c
+++ b/drivers/net/wireless/st/cw1200/sta.c
@@ -1796,14 +1796,14 @@ static int cw1200_set_btcoexinfo(struct cw1200_common *priv)
 void cw1200_bss_info_changed(struct ieee80211_hw *dev,
 			     struct ieee80211_vif *vif,
 			     struct ieee80211_bss_conf *info,
-			     u32 changed)
+			     u64 changed)
 {
 	struct cw1200_common *priv = dev->priv;
 	bool do_join = false;
 
 	mutex_lock(&priv->conf_mutex);
 
-	pr_debug("BSS CHANGED:  %08x\n", changed);
+	pr_debug("BSS CHANGED:  %llx\n", (unsigned long long)changed);
 
 	/* TODO: BSS_CHANGED_QOS */
 	/* TODO: BSS_CHANGED_TXPOWER */
diff --git a/drivers/net/wireless/st/cw1200/sta.h b/drivers/net/wireless/st/cw1200/sta.h
index 706dab8e73bf..05e3ab7ccef1 100644
--- a/drivers/net/wireless/st/cw1200/sta.h
+++ b/drivers/net/wireless/st/cw1200/sta.h
@@ -103,7 +103,7 @@ void cw1200_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
 void cw1200_bss_info_changed(struct ieee80211_hw *dev,
 			     struct ieee80211_vif *vif,
 			     struct ieee80211_bss_conf *info,
-			     u32 changed);
+			     u64 changed);
 int cw1200_ampdu_action(struct ieee80211_hw *hw,
 			struct ieee80211_vif *vif,
 			struct ieee80211_ampdu_params *params);
diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c
index bdc93c4f54ba..340ab4985fe2 100644
--- a/drivers/net/wireless/ti/wl1251/main.c
+++ b/drivers/net/wireless/ti/wl1251/main.c
@@ -1077,7 +1077,7 @@ static int wl1251_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
 static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
 				       struct ieee80211_bss_conf *bss_conf,
-				       u32 changed)
+				       u64 changed)
 {
 	struct wl1251 *wl = hw->priv;
 	struct sk_buff *beacon, *skb;
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index ad9560bd9512..d365bdce2a10 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -4580,7 +4580,7 @@ static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
 static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
 				       struct ieee80211_bss_conf *bss_conf,
-				       u32 changed)
+				       u64 changed)
 {
 	struct wl1271 *wl = hw->priv;
 	struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
diff --git a/drivers/net/wireless/zydas/zd1211rw/zd_mac.c b/drivers/net/wireless/zydas/zd1211rw/zd_mac.c
index 3ef8533205f9..cd2a4cbcc9d6 100644
--- a/drivers/net/wireless/zydas/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zydas/zd1211rw/zd_mac.c
@@ -1278,12 +1278,12 @@ static void set_rts_cts(struct zd_mac *mac, unsigned int short_preamble)
 static void zd_op_bss_info_changed(struct ieee80211_hw *hw,
 				   struct ieee80211_vif *vif,
 				   struct ieee80211_bss_conf *bss_conf,
-				   u32 changes)
+				   u64 changes)
 {
 	struct zd_mac *mac = zd_hw_mac(hw);
 	int associated;
 
-	dev_dbg_f(zd_mac_dev(mac), "changes: %x\n", changes);
+	dev_dbg_f(zd_mac_dev(mac), "changes: %llx\n", (unsigned long long)changes);
 
 	if (mac->type == NL80211_IFTYPE_MESH_POINT ||
 	    mac->type == NL80211_IFTYPE_ADHOC ||
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index 741e1b9d6677..f995c592fd09 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -1396,7 +1396,7 @@ static int vnt_config(struct ieee80211_hw *hw, u32 changed)
 
 static void vnt_bss_info_changed(struct ieee80211_hw *hw,
 				 struct ieee80211_vif *vif,
-				 struct ieee80211_bss_conf *conf, u32 changed)
+				 struct ieee80211_bss_conf *conf, u64 changed)
 {
 	struct vnt_private *priv = hw->priv;
 
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 3ab8a7bb9715..897ee0f7fc6b 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -745,7 +745,7 @@ static int vnt_config(struct ieee80211_hw *hw, u32 changed)
 
 static void vnt_bss_info_changed(struct ieee80211_hw *hw,
 				 struct ieee80211_vif *vif,
-				 struct ieee80211_bss_conf *conf, u32 changed)
+				 struct ieee80211_bss_conf *conf, u64 changed)
 {
 	struct vnt_private *priv = hw->priv;
 
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 1520922d21a5..831f14b7ca69 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -273,8 +273,8 @@ struct ieee80211_vif_chanctx_switch {
 /**
  * enum ieee80211_bss_change - BSS change notification flags
  *
- * These flags are used with the bss_info_changed() callback
- * to indicate which BSS parameter changed.
+ * These flags are used with the bss_info_changed(), link_info_changed()
+ * and vif_cfg_changed() callbacks to indicate which parameter(s) changed.
  *
  * @BSS_CHANGED_ASSOC: association status changed (associated/disassociated),
  *	also implies a change in the AID.
@@ -3524,6 +3524,22 @@ struct ieee80211_prep_tx_info {
  *	for association indication. The @changed parameter indicates which
  *	of the bss parameters has changed when a call is made. The callback
  *	can sleep.
+ *	Note: this callback is called if @vif_cfg_changed or @link_info_changed
+ *	are not implemented.
+ *
+ * @vif_cfg_changed: Handler for configuration requests related to interface
+ *	(MLD) parameters from &struct ieee80211_vif_cfg that vary during the
+ *	lifetime of the interface (e.g. assoc status, IP addresses, etc.)
+ *	The @changed parameter indicates which value changed.
+ *	The callback can sleep.
+ *
+ * @link_info_changed: Handler for configuration requests related to link
+ *	parameters from &struct ieee80211_bss_conf that are related to an
+ *	individual link. e.g. legacy/HT/VHT/... rate information.
+ *	The @changed parameter indicates which value changed, and the @link_id
+ *	parameter indicates the link ID. Note that the @link_id will be 0 for
+ *	non-MLO connections.
+ *	The callback can sleep.
  *
  * @prepare_multicast: Prepare for multicast filter configuration.
  *	This callback is optional, and its return value is passed
@@ -4032,7 +4048,13 @@ struct ieee80211_ops {
 	void (*bss_info_changed)(struct ieee80211_hw *hw,
 				 struct ieee80211_vif *vif,
 				 struct ieee80211_bss_conf *info,
-				 u32 changed);
+				 u64 changed);
+	void (*vif_cfg_changed)(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif,
+				u64 changed);
+	void (*link_info_changed)(struct ieee80211_hw *hw,
+				  struct ieee80211_vif *vif,
+				  u64 link_id, u32 changed);
 
 	int (*start_ap)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
 	void (*stop_ap)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 040a766b8c19..ffd26db89f33 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -39,7 +39,8 @@ static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
 		memcpy(sdata->vif.bss_conf.mu_group.position,
 		       params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
 		       WLAN_USER_POSITION_LEN);
-		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
+		ieee80211_link_info_change_notify(sdata, 0,
+						  BSS_CHANGED_MU_GROUPS);
 		/* don't care about endianness - just check for 0 */
 		memcpy(&membership, params->vht_mumimo_groups,
 		       WLAN_MEMBERSHIP_LEN);
@@ -1337,7 +1338,7 @@ static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
 		err |= BSS_CHANGED_HE_BSS_COLOR;
 	}
 
-	ieee80211_bss_info_change_notify(sdata, err);
+	ieee80211_link_info_change_notify(sdata, 0, err);
 	return 0;
 }
 
@@ -1418,7 +1419,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
 	sdata->beacon_rate_set = false;
 	sdata->vif.cfg.ssid_len = 0;
 	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
+	ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_BEACON_ENABLED);
 
 	if (sdata->wdev.cac_started) {
 		chandef = sdata->vif.bss_conf.chandef;
@@ -2351,7 +2352,7 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
 	if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
 		conf->ht_opmode = nconf->ht_opmode;
 		sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
-		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
+		ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_HT);
 	}
 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
 		conf->dot11MeshHWMPactivePathToRootTimeout =
@@ -2506,7 +2507,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 		changed |= BSS_CHANGED_P2P_PS;
 	}
 
-	ieee80211_bss_info_change_notify(sdata, changed);
+	ieee80211_link_info_change_notify(sdata, 0, changed);
 
 	return 0;
 }
@@ -2547,7 +2548,7 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
 		return -EINVAL;
 	}
 
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
+	ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_QOS);
 
 	return 0;
 }
@@ -2696,7 +2697,7 @@ static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
 	memcpy(sdata->vif.bss_conf.mcast_rate, rate,
 	       sizeof(int) * NUM_NL80211_BANDS);
 
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
+	ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_MCAST_RATE);
 
 	return 0;
 }
@@ -3030,7 +3031,7 @@ static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
 	/* tell the driver upon association, unless already associated */
 	if (sdata->u.mgd.associated &&
 	    sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
-		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
+		ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_CQM);
 
 	return 0;
 }
@@ -3055,7 +3056,7 @@ static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
 	/* tell the driver upon association, unless already associated */
 	if (sdata->u.mgd.associated &&
 	    sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
-		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
+		ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_CQM);
 
 	return 0;
 }
@@ -3393,7 +3394,7 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
 	if (err)
 		return err;
 
-	ieee80211_bss_info_change_notify(sdata, changed);
+	ieee80211_link_info_change_notify(sdata, 0, changed);
 
 	if (sdata->deflink.csa_block_tx) {
 		ieee80211_wake_vif_queues(local, sdata,
@@ -3681,7 +3682,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 					  params->count, params->block_tx);
 
 	if (changed) {
-		ieee80211_bss_info_change_notify(sdata, changed);
+		ieee80211_link_info_change_notify(sdata, 0, changed);
 		drv_channel_switch_beacon(sdata, &params->chandef);
 	} else {
 		/* if the beacon didn't change, we can finalize immediately */
@@ -3984,7 +3985,7 @@ static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
 
 	ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
 	if (ret == 0)
-		ieee80211_bss_info_change_notify(sdata, changed);
+		ieee80211_link_info_change_notify(sdata, 0, changed);
 
 	return ret;
 }
@@ -4393,7 +4394,7 @@ ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
 	sdata->vif.bss_conf.he_bss_color.enabled = enable;
 	changed |= BSS_CHANGED_HE_BSS_COLOR;
 
-	ieee80211_bss_info_change_notify(sdata, changed);
+	ieee80211_link_info_change_notify(sdata, 0, changed);
 
 	if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
 		struct ieee80211_sub_if_data *child;
@@ -4403,8 +4404,8 @@ ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
 			if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
 				child->vif.bss_conf.he_bss_color.color = color;
 				child->vif.bss_conf.he_bss_color.enabled = enable;
-				ieee80211_bss_info_change_notify(child,
-								 BSS_CHANGED_HE_BSS_COLOR);
+				ieee80211_link_info_change_notify(child, 0,
+								  BSS_CHANGED_HE_BSS_COLOR);
 			}
 		}
 		mutex_unlock(&sdata->local->iflist_mtx);
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 67131ca3f649..5d8b49f20198 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -799,8 +799,7 @@ static int ieee80211_assign_vif_chanctx(struct ieee80211_sub_if_data *sdata,
 
 	if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
 	    sdata->vif.type != NL80211_IFTYPE_MONITOR)
-		ieee80211_bss_info_change_notify(sdata,
-						 BSS_CHANGED_IDLE);
+		ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_IDLE);
 
 	ieee80211_check_fast_xmit_iface(sdata);
 
@@ -1188,7 +1187,7 @@ ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata)
 	ieee80211_recalc_radar_chanctx(local, new_ctx);
 
 	if (changed)
-		ieee80211_bss_info_change_notify(sdata, changed);
+		ieee80211_link_info_change_notify(sdata, 0, changed);
 
 out:
 	ieee80211_vif_chanctx_reservation_complete(sdata);
@@ -1533,8 +1532,8 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)
 			ieee80211_vif_update_chandef(sdata,
 						     &sdata->deflink.reserved_chandef);
 			if (changed)
-				ieee80211_bss_info_change_notify(sdata,
-								 changed);
+				ieee80211_link_info_change_notify(sdata, 0,
+								  changed);
 
 			ieee80211_recalc_txpower(sdata, false);
 		}
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index fd2882348211..15ab8d00815b 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -147,10 +147,27 @@ static inline int drv_config(struct ieee80211_local *local, u32 changed)
 	return ret;
 }
 
-static inline void drv_bss_info_changed(struct ieee80211_local *local,
-					struct ieee80211_sub_if_data *sdata,
-					struct ieee80211_bss_conf *info,
-					u32 changed)
+static inline void drv_vif_cfg_changed(struct ieee80211_local *local,
+				       struct ieee80211_sub_if_data *sdata,
+				       u64 changed)
+{
+	might_sleep();
+
+	if (!check_sdata_in_driver(sdata))
+		return;
+
+	trace_drv_vif_cfg_changed(local, sdata, changed);
+	if (local->ops->vif_cfg_changed)
+		local->ops->vif_cfg_changed(&local->hw, &sdata->vif, changed);
+	else if (local->ops->bss_info_changed)
+		local->ops->bss_info_changed(&local->hw, &sdata->vif,
+					     &sdata->vif.bss_conf, changed);
+	trace_drv_return_void(local);
+}
+
+static inline void drv_link_info_changed(struct ieee80211_local *local,
+					 struct ieee80211_sub_if_data *sdata,
+					 int link_id, u64 changed)
 {
 	might_sleep();
 
@@ -172,9 +189,13 @@ static inline void drv_bss_info_changed(struct ieee80211_local *local,
 	if (!check_sdata_in_driver(sdata))
 		return;
 
-	trace_drv_bss_info_changed(local, sdata, info, changed);
-	if (local->ops->bss_info_changed)
-		local->ops->bss_info_changed(&local->hw, &sdata->vif, info, changed);
+	trace_drv_link_info_changed(local, sdata, link_id, changed);
+	if (local->ops->link_info_changed)
+		local->ops->link_info_changed(&local->hw, &sdata->vif,
+					      link_id, changed);
+	else if (local->ops->bss_info_changed)
+		local->ops->bss_info_changed(&local->hw, &sdata->vif,
+					     &sdata->vif.bss_conf, changed);
 	trace_drv_return_void(local);
 }
 
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 066f7c5adeec..3b68e9f4345b 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -1851,7 +1851,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 		| IEEE80211_HT_PARAM_RIFS_MODE;
 
 	changed |= BSS_CHANGED_HT | BSS_CHANGED_MCAST_RATE;
-	ieee80211_bss_info_change_notify(sdata, changed);
+	ieee80211_link_info_change_notify(sdata, 0, changed);
 
 	sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
 	sdata->deflink.needed_rx_chains = local->rx_chains;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index f0a8bb444033..20153957cdee 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1836,7 +1836,11 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
-				      u32 changed);
+				      u64 changed);
+void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
+				     u64 changed);
+void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
+				       int link_id, u64 changed);
 void ieee80211_configure_filter(struct ieee80211_local *local);
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
 
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 2ee34d898821..978dfa48e098 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -80,7 +80,8 @@ void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
 {
 	if (__ieee80211_recalc_txpower(sdata) ||
 	    (update_bss && ieee80211_sdata_running(sdata)))
-		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_TXPOWER);
+		ieee80211_link_info_change_notify(sdata, 0,
+						  BSS_CHANGED_TXPOWER);
 }
 
 static u32 __ieee80211_idle_off(struct ieee80211_local *local)
@@ -1281,7 +1282,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 		if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
 		    sdata->vif.type != NL80211_IFTYPE_NAN)
 			changed |= ieee80211_reset_erp_info(sdata);
-		ieee80211_bss_info_change_notify(sdata, changed);
+		ieee80211_link_info_change_notify(sdata, 0, changed);
 
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_STATION:
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 0c81ae492df4..6165b90bf0e2 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -199,15 +199,84 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 	return ret;
 }
 
+#define BSS_CHANGED_VIF_CFG_FLAGS (BSS_CHANGED_ASSOC |\
+				   BSS_CHANGED_IDLE |\
+				   BSS_CHANGED_IBSS |\
+				   BSS_CHANGED_ARP_FILTER |\
+				   BSS_CHANGED_SSID)
+
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
-				      u32 changed)
+				      u64 changed)
 {
 	struct ieee80211_local *local = sdata->local;
 
+	might_sleep();
+
 	if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
 		return;
 
-	drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed);
+	if (WARN_ON_ONCE(changed & (BSS_CHANGED_BEACON |
+				    BSS_CHANGED_BEACON_ENABLED) &&
+			 sdata->vif.type != NL80211_IFTYPE_AP &&
+			 sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+			 sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
+			 sdata->vif.type != NL80211_IFTYPE_OCB))
+		return;
+
+	if (WARN_ON_ONCE(sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE ||
+			 sdata->vif.type == NL80211_IFTYPE_NAN ||
+			 (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
+			  !sdata->vif.bss_conf.mu_mimo_owner &&
+			  !(changed & BSS_CHANGED_TXPOWER))))
+		return;
+
+	if (!check_sdata_in_driver(sdata))
+		return;
+
+	if (changed & BSS_CHANGED_VIF_CFG_FLAGS) {
+		trace_drv_vif_cfg_changed(local, sdata, changed);
+		if (local->ops->vif_cfg_changed)
+			local->ops->vif_cfg_changed(&local->hw, &sdata->vif, changed);
+	}
+
+	if (changed & ~BSS_CHANGED_VIF_CFG_FLAGS) {
+		/* FIXME: should be for each link */
+		trace_drv_link_info_changed(local, sdata, 0, changed);
+		if (local->ops->link_info_changed)
+			local->ops->link_info_changed(&local->hw, &sdata->vif,
+						      0, changed);
+	}
+
+	if (local->ops->bss_info_changed)
+		local->ops->bss_info_changed(&local->hw, &sdata->vif,
+					     &sdata->vif.bss_conf, changed);
+	trace_drv_return_void(local);
+}
+
+void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
+				     u64 changed)
+{
+	struct ieee80211_local *local = sdata->local;
+
+	WARN_ON_ONCE(changed & ~BSS_CHANGED_VIF_CFG_FLAGS);
+
+	if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+		return;
+
+	drv_vif_cfg_changed(local, sdata, changed);
+}
+
+void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
+				       int link_id, u64 changed)
+{
+	struct ieee80211_local *local = sdata->local;
+
+	WARN_ON_ONCE(changed & BSS_CHANGED_VIF_CFG_FLAGS);
+
+	if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+		return;
+
+	drv_link_info_changed(local, sdata, link_id, changed);
 }
 
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
@@ -387,8 +456,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
 
 	/* Configure driver only if associated (which also implies it is up) */
 	if (ifmgd->associated)
-		ieee80211_bss_info_change_notify(sdata,
-						 BSS_CHANGED_ARP_FILTER);
+		ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_ARP_FILTER);
 
 	sdata_unlock(sdata);
 
@@ -557,6 +625,10 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
 	if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove)))
 		return NULL;
 
+	if (WARN_ON(!!ops->link_info_changed != !!ops->vif_cfg_changed ||
+		    (ops->link_info_changed && ops->bss_info_changed)))
+		return NULL;
+
 	/* check all or no channel context operations exist */
 	i = !!ops->add_chanctx + !!ops->remove_chanctx +
 	    !!ops->change_chanctx + !!ops->assign_vif_chanctx +
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index f60e257cba95..13722a7f2254 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -1057,7 +1057,7 @@ int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 	}
 
 	ieee80211_recalc_dtim(local, sdata);
-	ieee80211_bss_info_change_notify(sdata, changed);
+	ieee80211_link_info_change_notify(sdata, 0, changed);
 
 	netif_carrier_on(sdata->dev);
 	return 0;
@@ -1081,7 +1081,7 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
 	sdata->vif.bss_conf.enable_beacon = false;
 	sdata->beacon_rate_set = false;
 	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
+	ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_BEACON_ENABLED);
 
 	/* remove beacon */
 	bcn = rcu_dereference_protected(ifmsh->beacon,
@@ -1581,7 +1581,7 @@ static void mesh_bss_info_changed(struct ieee80211_sub_if_data *sdata)
 		if (ieee80211_mesh_rebuild_beacon(sdata))
 			return;
 
-	ieee80211_bss_info_change_notify(sdata, changed);
+	ieee80211_link_info_change_notify(sdata, 0, changed);
 }
 
 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index fd1b97e1e990..e172bdfe9b0a 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1835,7 +1835,7 @@ void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata)
 
 	if (sdata->vif.bss_conf.ps != ps_allowed) {
 		sdata->vif.bss_conf.ps = ps_allowed;
-		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_PS);
+		ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_PS);
 	}
 }
 
@@ -2031,7 +2031,7 @@ __ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata)
 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata)
 {
 	if (__ieee80211_sta_handle_tspec_ac_params(sdata))
-		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
+		ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_QOS);
 }
 
 static void ieee80211_sta_handle_tspec_ac_params_wk(struct work_struct *work)
@@ -2920,7 +2920,7 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata,
 		sta_info_destroy_addr(sdata, auth_data->bss->bssid);
 
 		eth_zero_addr(sdata->deflink.u.mgd.bssid);
-		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
+		ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_BSSID);
 		sdata->u.mgd.flags = 0;
 		mutex_lock(&sdata->local->mtx);
 		ieee80211_vif_release_channel(sdata);
@@ -2949,7 +2949,7 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata,
 		sta_info_destroy_addr(sdata, assoc_data->bss->bssid);
 
 		eth_zero_addr(sdata->deflink.u.mgd.bssid);
-		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
+		ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_BSSID);
 		sdata->u.mgd.flags = 0;
 		sdata->vif.bss_conf.mu_mimo_owner = false;
 
@@ -4387,7 +4387,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 					       elems->pwr_constr_elem,
 					       elems->cisco_dtpc_elem);
 
-	ieee80211_bss_info_change_notify(sdata, changed);
+	ieee80211_link_info_change_notify(sdata, 0, changed);
 free:
 	kfree(elems);
 }
@@ -5697,7 +5697,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
 		 * tell driver about BSSID, basic rates and timing
 		 * this was set up above, before setting the channel
 		 */
-		ieee80211_bss_info_change_notify(sdata,
+		ieee80211_link_info_change_notify(sdata, 0,
 			BSS_CHANGED_BSSID | BSS_CHANGED_BASIC_RATES |
 			BSS_CHANGED_BEACON_INT);
 
@@ -5865,7 +5865,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 
  err_clear:
 	eth_zero_addr(sdata->deflink.u.mgd.bssid);
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
+	ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_BSSID);
 	ifmgd->auth_data = NULL;
 	mutex_lock(&sdata->local->mtx);
 	ieee80211_vif_release_channel(sdata);
@@ -6212,7 +6212,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	return 0;
  err_clear:
 	eth_zero_addr(sdata->deflink.u.mgd.bssid);
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
+	ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_BSSID);
 	ifmgd->assoc_data = NULL;
  err_free:
 	kfree(assoc_data);
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index 6cd3df1eb687..2ed4e2325914 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -118,8 +118,8 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local)
 			set_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
 				&sdata->state);
 			sdata->vif.bss_conf.enable_beacon = false;
-			ieee80211_bss_info_change_notify(
-				sdata, BSS_CHANGED_BEACON_ENABLED);
+			ieee80211_link_info_change_notify(
+				sdata, 0, BSS_CHANGED_BEACON_ENABLED);
 		}
 
 		if (sdata->vif.type == NL80211_IFTYPE_STATION &&
@@ -155,8 +155,8 @@ void ieee80211_offchannel_return(struct ieee80211_local *local)
 		if (test_and_clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
 				       &sdata->state)) {
 			sdata->vif.bss_conf.enable_beacon = true;
-			ieee80211_bss_info_change_notify(
-				sdata, BSS_CHANGED_BEACON_ENABLED);
+			ieee80211_link_info_change_notify(
+				sdata, 0, BSS_CHANGED_BEACON_ENABLED);
 		}
 	}
 	mutex_unlock(&local->iflist_mtx);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 115efa830673..9a70d846d0dd 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -630,7 +630,7 @@ ieee80211_recalc_p2p_go_ps_allowed(struct ieee80211_sub_if_data *sdata)
 
 	if (allow_p2p_go_ps != sdata->vif.bss_conf.allow_p2p_go_ps) {
 		sdata->vif.bss_conf.allow_p2p_go_ps = allow_p2p_go_ps;
-		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_P2P_PS);
+		ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_P2P_PS);
 	}
 }
 
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index 8a2ec9c31240..11a3b950b490 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -1335,7 +1335,7 @@ iee80211_tdls_recalc_ht_protection(struct ieee80211_sub_if_data *sdata,
 		return;
 
 	sdata->vif.bss_conf.ht_operation_mode = opmode;
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
+	ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_HT);
 }
 
 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 74ef7e71e1ef..7284f0bf8a99 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -390,22 +390,71 @@ TRACE_EVENT(drv_config,
 	)
 );
 
-TRACE_EVENT(drv_bss_info_changed,
+TRACE_EVENT(drv_vif_cfg_changed,
 	TP_PROTO(struct ieee80211_local *local,
 		 struct ieee80211_sub_if_data *sdata,
-		 struct ieee80211_bss_conf *info,
-		 u32 changed),
+		 u64 changed),
 
-	TP_ARGS(local, sdata, info, changed),
+	TP_ARGS(local, sdata, changed),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
 		VIF_ENTRY
-		__field(u32, changed)
+		__field(u64, changed)
 		__field(bool, assoc)
 		__field(bool, ibss_joined)
 		__field(bool, ibss_creator)
 		__field(u16, aid)
+		__dynamic_array(u32, arp_addr_list,
+				sdata->vif.cfg.arp_addr_cnt > IEEE80211_BSS_ARP_ADDR_LIST_LEN ?
+					IEEE80211_BSS_ARP_ADDR_LIST_LEN :
+					sdata->vif.cfg.arp_addr_cnt)
+		__field(int, arp_addr_cnt)
+		__dynamic_array(u8, ssid, sdata->vif.cfg.ssid_len)
+		__field(int, s1g)
+		__field(bool, idle)
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		VIF_ASSIGN;
+		__entry->changed = changed;
+		__entry->aid = sdata->vif.cfg.aid;
+		__entry->assoc = sdata->vif.cfg.assoc;
+		__entry->ibss_joined = sdata->vif.cfg.ibss_joined;
+		__entry->ibss_creator = sdata->vif.cfg.ibss_creator;
+
+		__entry->arp_addr_cnt = sdata->vif.cfg.arp_addr_cnt;
+		memcpy(__get_dynamic_array(arp_addr_list),
+		       sdata->vif.cfg.arp_addr_list,
+		       sizeof(u32) * (sdata->vif.cfg.arp_addr_cnt > IEEE80211_BSS_ARP_ADDR_LIST_LEN ?
+					IEEE80211_BSS_ARP_ADDR_LIST_LEN :
+					sdata->vif.cfg.arp_addr_cnt));
+		memcpy(__get_dynamic_array(ssid),
+		       sdata->vif.cfg.ssid,
+		       sdata->vif.cfg.ssid_len);
+		__entry->s1g = sdata->vif.cfg.s1g;
+		__entry->idle = sdata->vif.cfg.idle;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT  VIF_PR_FMT " changed:%#llx",
+		LOCAL_PR_ARG, VIF_PR_ARG, (unsigned long long)__entry->changed
+	)
+);
+
+TRACE_EVENT(drv_link_info_changed,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata,
+		 int link_id, u64 changed),
+
+	TP_ARGS(local, sdata, link_id, changed),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		VIF_ENTRY
+		__field(u64, changed)
+		__field(int, link_id)
 		__field(bool, cts)
 		__field(bool, shortpre)
 		__field(bool, shortslot)
@@ -424,15 +473,8 @@ TRACE_EVENT(drv_bss_info_changed,
 		__field(u32, channel_width)
 		__field(u32, channel_cfreq1)
 		__field(u32, channel_cfreq1_offset)
-		__dynamic_array(u32, arp_addr_list,
-				sdata->vif.cfg.arp_addr_cnt > IEEE80211_BSS_ARP_ADDR_LIST_LEN ?
-					IEEE80211_BSS_ARP_ADDR_LIST_LEN :
-					sdata->vif.cfg.arp_addr_cnt)
-		__field(int, arp_addr_cnt)
 		__field(bool, qos)
-		__field(bool, idle)
 		__field(bool, ps)
-		__dynamic_array(u8, ssid, sdata->vif.cfg.ssid_len)
 		__field(bool, hidden_ssid)
 		__field(int, txpower)
 		__field(u8, p2p_oppps_ctwindow)
@@ -442,49 +484,37 @@ TRACE_EVENT(drv_bss_info_changed,
 		LOCAL_ASSIGN;
 		VIF_ASSIGN;
 		__entry->changed = changed;
-		__entry->aid = sdata->vif.cfg.aid;
-		__entry->assoc = sdata->vif.cfg.assoc;
-		__entry->ibss_joined = sdata->vif.cfg.ibss_joined;
-		__entry->ibss_creator = sdata->vif.cfg.ibss_creator;
-		__entry->shortpre = info->use_short_preamble;
-		__entry->cts = info->use_cts_prot;
-		__entry->shortslot = info->use_short_slot;
-		__entry->enable_beacon = info->enable_beacon;
-		__entry->dtimper = info->dtim_period;
-		__entry->bcnint = info->beacon_int;
-		__entry->assoc_cap = info->assoc_capability;
-		__entry->sync_tsf = info->sync_tsf;
-		__entry->sync_device_ts = info->sync_device_ts;
-		__entry->sync_dtim_count = info->sync_dtim_count;
-		__entry->basic_rates = info->basic_rates;
-		memcpy(__entry->mcast_rate, info->mcast_rate,
+		__entry->link_id = link_id;
+		__entry->shortpre = sdata->vif.bss_conf.use_short_preamble;
+		__entry->cts = sdata->vif.bss_conf.use_cts_prot;
+		__entry->shortslot = sdata->vif.bss_conf.use_short_slot;
+		__entry->enable_beacon = sdata->vif.bss_conf.enable_beacon;
+		__entry->dtimper = sdata->vif.bss_conf.dtim_period;
+		__entry->bcnint = sdata->vif.bss_conf.beacon_int;
+		__entry->assoc_cap = sdata->vif.bss_conf.assoc_capability;
+		__entry->sync_tsf = sdata->vif.bss_conf.sync_tsf;
+		__entry->sync_device_ts = sdata->vif.bss_conf.sync_device_ts;
+		__entry->sync_dtim_count = sdata->vif.bss_conf.sync_dtim_count;
+		__entry->basic_rates = sdata->vif.bss_conf.basic_rates;
+		memcpy(__entry->mcast_rate, sdata->vif.bss_conf.mcast_rate,
 		       sizeof(__entry->mcast_rate));
-		__entry->ht_operation_mode = info->ht_operation_mode;
-		__entry->cqm_rssi_thold = info->cqm_rssi_thold;
-		__entry->cqm_rssi_hyst = info->cqm_rssi_hyst;
-		__entry->channel_width = info->chandef.width;
-		__entry->channel_cfreq1 = info->chandef.center_freq1;
-		__entry->channel_cfreq1_offset = info->chandef.freq1_offset;
-		__entry->arp_addr_cnt = sdata->vif.cfg.arp_addr_cnt;
-		memcpy(__get_dynamic_array(arp_addr_list),
-		       sdata->vif.cfg.arp_addr_list,
-		       sizeof(u32) * (sdata->vif.cfg.arp_addr_cnt > IEEE80211_BSS_ARP_ADDR_LIST_LEN ?
-					IEEE80211_BSS_ARP_ADDR_LIST_LEN :
-					sdata->vif.cfg.arp_addr_cnt));
-		__entry->qos = info->qos;
-		__entry->idle = sdata->vif.cfg.idle;
-		__entry->ps = info->ps;
-		memcpy(__get_dynamic_array(ssid),
-		       sdata->vif.cfg.ssid,
-		       sdata->vif.cfg.ssid_len);
-		__entry->hidden_ssid = info->hidden_ssid;
-		__entry->txpower = info->txpower;
-		__entry->p2p_oppps_ctwindow = info->p2p_noa_attr.oppps_ctwindow;
-	),
-
-	TP_printk(
-		LOCAL_PR_FMT  VIF_PR_FMT " changed:%#x",
-		LOCAL_PR_ARG, VIF_PR_ARG, __entry->changed
+		__entry->ht_operation_mode = sdata->vif.bss_conf.ht_operation_mode;
+		__entry->cqm_rssi_thold = sdata->vif.bss_conf.cqm_rssi_thold;
+		__entry->cqm_rssi_hyst = sdata->vif.bss_conf.cqm_rssi_hyst;
+		__entry->channel_width = sdata->vif.bss_conf.chandef.width;
+		__entry->channel_cfreq1 = sdata->vif.bss_conf.chandef.center_freq1;
+		__entry->channel_cfreq1_offset = sdata->vif.bss_conf.chandef.freq1_offset;
+		__entry->qos = sdata->vif.bss_conf.qos;
+		__entry->ps = sdata->vif.bss_conf.ps;
+		__entry->hidden_ssid = sdata->vif.bss_conf.hidden_ssid;
+		__entry->txpower = sdata->vif.bss_conf.txpower;
+		__entry->p2p_oppps_ctwindow = sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT  VIF_PR_FMT " link_id:%d, changed:%#llx",
+		LOCAL_PR_ARG, VIF_PR_ARG, __entry->link_id,
+		(unsigned long long)__entry->changed
 	)
 );
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 9cbc09e6d84e..2a279dc3e457 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1699,8 +1699,8 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
 	    sdata->vif.type != NL80211_IFTYPE_NAN) {
 		sdata->vif.bss_conf.qos = enable_qos;
 		if (bss_notify)
-			ieee80211_bss_info_change_notify(sdata,
-							 BSS_CHANGED_QOS);
+			ieee80211_link_info_change_notify(sdata, 0,
+							  BSS_CHANGED_QOS);
 	}
 }
 
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index ac97584b3a0b..7daca8352deb 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -665,7 +665,7 @@ void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
 	       mgmt->u.action.u.vht_group_notif.position,
 	       WLAN_USER_POSITION_LEN);
 
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
+	ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_MU_GROUPS);
 }
 
 void ieee80211_update_mu_groups(struct ieee80211_vif *vif,
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 02/15] mac80211: add per-link configuration pointer
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
  2022-06-01  7:39 ` [PATCH 01/15] mac80211: split bss_info_changed method Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 03/15] mac80211: pass link ID where already present Johannes Berg
                   ` (12 subsequent siblings)
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

Add pointers so we can start using link_id throughout the
code, even if for now only link ID 0 is valid, pointing
to the "built-in" bss_conf, which is used by drivers that
are not aware of MLD.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/mac80211.h     |  3 +++
 net/mac80211/ieee80211_i.h |  1 +
 net/mac80211/iface.c       | 23 +++++++++++++++++++++--
 3 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 831f14b7ca69..e4868bccb446 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1739,6 +1739,8 @@ struct ieee80211_vif_cfg {
  * @cfg: vif configuration, see &struct ieee80211_vif_cfg
  * @bss_conf: BSS configuration for this interface, either our own
  *	or the BSS we're associated to
+ * @link_conf: in case of MLD, the per-link BSS configuration,
+ *	indexed by link ID
  * @addr: address of this interface
  * @p2p: indicates whether this AP or STA interface is a p2p
  *	interface, i.e. a GO or p2p-sta respectively
@@ -1773,6 +1775,7 @@ struct ieee80211_vif {
 	enum nl80211_iftype type;
 	struct ieee80211_vif_cfg cfg;
 	struct ieee80211_bss_conf bss_conf;
+	struct ieee80211_bss_conf *link_conf[IEEE80211_MLD_MAX_NUM_LINKS];
 	u8 addr[ETH_ALEN] __aligned(2);
 	bool p2p;
 
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 20153957cdee..397b111f006d 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1031,6 +1031,7 @@ struct ieee80211_sub_if_data {
 	} u;
 
 	struct ieee80211_link_data deflink;
+	struct ieee80211_link_data *link[IEEE80211_MLD_MAX_NUM_LINKS];
 
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct {
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 978dfa48e098..04ee525394e9 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1012,6 +1012,23 @@ static void ieee80211_set_default_queues(struct ieee80211_sub_if_data *sdata)
 	sdata->vif.cab_queue = IEEE80211_INVAL_HW_QUEUE;
 }
 
+static void ieee80211_sdata_init(struct ieee80211_local *local,
+				 struct ieee80211_sub_if_data *sdata)
+{
+	sdata->local = local;
+
+	/*
+	 * Initialize the default link, so we can use link_id 0 for non-MLD,
+	 * and that continues to work for non-MLD-aware drivers that use just
+	 * vif.bss_conf instead of vif.link_conf.
+	 *
+	 * Note that we never change this, so if link ID 0 isn't used in an
+	 * MLD connection, we get a separate allocation for it.
+	 */
+	sdata->vif.link_conf[0] = &sdata->vif.bss_conf;
+	sdata->link[0] = &sdata->deflink;
+}
+
 int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
 {
 	struct ieee80211_sub_if_data *sdata;
@@ -1031,12 +1048,13 @@ int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
 		return -ENOMEM;
 
 	/* set up data */
-	sdata->local = local;
 	sdata->vif.type = NL80211_IFTYPE_MONITOR;
 	snprintf(sdata->name, IFNAMSIZ, "%s-monitor",
 		 wiphy_name(local->hw.wiphy));
 	sdata->wdev.iftype = NL80211_IFTYPE_MONITOR;
 
+	ieee80211_sdata_init(local, sdata);
+
 	ieee80211_set_default_queues(sdata);
 
 	ret = drv_add_interface(local, sdata);
@@ -2074,7 +2092,8 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
 	/* initialise type-independent data */
 	sdata->wdev.wiphy = local->hw.wiphy;
-	sdata->local = local;
+
+	ieee80211_sdata_init(local, sdata);
 
 	ieee80211_init_frag_cache(&sdata->frags);
 
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 03/15] mac80211: pass link ID where already present
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
  2022-06-01  7:39 ` [PATCH 01/15] mac80211: split bss_info_changed method Johannes Berg
  2022-06-01  7:39 ` [PATCH 02/15] mac80211: add per-link configuration pointer Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 04/15] mac80211: make channel context code MLO-aware Johannes Berg
                   ` (11 subsequent siblings)
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

In a few cases we already have the link ID in the APIs,
pass it already even if it cannot be non-zero yet.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/cfg.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index ffd26db89f33..b9a03548c89a 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1338,7 +1338,7 @@ static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
 		err |= BSS_CHANGED_HE_BSS_COLOR;
 	}
 
-	ieee80211_link_info_change_notify(sdata, 0, err);
+	ieee80211_link_info_change_notify(sdata, params->link_id, err);
 	return 0;
 }
 
@@ -1419,7 +1419,8 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
 	sdata->beacon_rate_set = false;
 	sdata->vif.cfg.ssid_len = 0;
 	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
-	ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_BEACON_ENABLED);
+	ieee80211_link_info_change_notify(sdata, link_id,
+					  BSS_CHANGED_BEACON_ENABLED);
 
 	if (sdata->wdev.cac_started) {
 		chandef = sdata->vif.bss_conf.chandef;
@@ -3985,7 +3986,7 @@ static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
 
 	ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
 	if (ret == 0)
-		ieee80211_link_info_change_notify(sdata, 0, changed);
+		ieee80211_link_info_change_notify(sdata, link_id, changed);
 
 	return ret;
 }
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 04/15] mac80211: make channel context code MLO-aware
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (2 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 03/15] mac80211: pass link ID where already present Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2023-02-14  7:57   ` Wen Gong
  2022-06-01  7:39 ` [PATCH 05/15] mac80211: remove sta_info_tx_streams() Johannes Berg
                   ` (10 subsequent siblings)
  14 siblings, 1 reply; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

Make the channel context code MLO aware, along with some
functions that it uses, so that the chan.c file is now
MLD-clean and no longer uses deflink/bss_conf/etc.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/ath/ath10k/mac.c         |   2 +
 drivers/net/wireless/ath/ath11k/mac.c         |   2 +
 drivers/net/wireless/ath/ath9k/main.c         |   2 +
 .../net/wireless/intel/iwlwifi/mvm/mac80211.c |   2 +
 drivers/net/wireless/mac80211_hwsim.c         |   2 +
 drivers/net/wireless/silabs/wfx/sta.c         |   2 +
 drivers/net/wireless/silabs/wfx/sta.h         |   2 +
 drivers/net/wireless/ti/wlcore/main.c         |   2 +
 include/net/mac80211.h                        |   4 +
 net/mac80211/cfg.c                            |  52 +-
 net/mac80211/chan.c                           | 642 +++++++++++-------
 net/mac80211/debug.h                          |  14 +
 net/mac80211/driver-ops.h                     |   8 +-
 net/mac80211/eht.c                            |   4 +-
 net/mac80211/he.c                             |   6 +-
 net/mac80211/ibss.c                           |   8 +-
 net/mac80211/ieee80211_i.h                    |  51 +-
 net/mac80211/iface.c                          |  15 +-
 net/mac80211/mesh_plink.c                     |   4 +-
 net/mac80211/mlme.c                           |  28 +-
 net/mac80211/ocb.c                            |   6 +-
 net/mac80211/rate.c                           |   8 +-
 net/mac80211/rate.h                           |   7 +-
 net/mac80211/rx.c                             |   8 +-
 net/mac80211/tdls.c                           |   4 +-
 net/mac80211/trace.h                          |  17 +-
 net/mac80211/util.c                           |  39 +-
 net/mac80211/vht.c                            |  36 +-
 28 files changed, 586 insertions(+), 391 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index bc0135868792..b9155e7b910a 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -8885,6 +8885,7 @@ ath10k_mac_op_change_chanctx(struct ieee80211_hw *hw,
 static int
 ath10k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 				 struct ieee80211_vif *vif,
+				 unsigned int link_id,
 				 struct ieee80211_chanctx_conf *ctx)
 {
 	struct ath10k *ar = hw->priv;
@@ -8964,6 +8965,7 @@ ath10k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 static void
 ath10k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
 				   struct ieee80211_vif *vif,
+				   unsigned int link_id,
 				   struct ieee80211_chanctx_conf *ctx)
 {
 	struct ath10k *ar = hw->priv;
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index be102357317b..42c4584b4df1 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -7071,6 +7071,7 @@ static int ath11k_start_vdev_delay(struct ieee80211_hw *hw,
 static int
 ath11k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 				 struct ieee80211_vif *vif,
+				 unsigned int link_id,
 				 struct ieee80211_chanctx_conf *ctx)
 {
 	struct ath11k *ar = hw->priv;
@@ -7160,6 +7161,7 @@ ath11k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 static void
 ath11k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
 				   struct ieee80211_vif *vif,
+				   unsigned int link_id,
 				   struct ieee80211_chanctx_conf *ctx)
 {
 	struct ath11k *ar = hw->priv;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 729f8ee9644d..c3d5d9795424 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2596,6 +2596,7 @@ static void ath9k_change_chanctx(struct ieee80211_hw *hw,
 
 static int ath9k_assign_vif_chanctx(struct ieee80211_hw *hw,
 				    struct ieee80211_vif *vif,
+				    unsigned int link_id,
 				    struct ieee80211_chanctx_conf *conf)
 {
 	struct ath_softc *sc = hw->priv;
@@ -2627,6 +2628,7 @@ static int ath9k_assign_vif_chanctx(struct ieee80211_hw *hw,
 
 static void ath9k_unassign_vif_chanctx(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif,
+				       unsigned int link_id,
 				       struct ieee80211_chanctx_conf *conf)
 {
 	struct ath_softc *sc = hw->priv;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 586208506275..5d3cedc146be 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -4235,6 +4235,7 @@ static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
 }
 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
 				      struct ieee80211_vif *vif,
+				      unsigned int link_id,
 				      struct ieee80211_chanctx_conf *ctx)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
@@ -4308,6 +4309,7 @@ static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
 
 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
 					 struct ieee80211_vif *vif,
+					 unsigned int link_id,
 					 struct ieee80211_chanctx_conf *ctx)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 1bd96b504956..0918f9dfec00 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2723,6 +2723,7 @@ static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
 
 static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
 					     struct ieee80211_vif *vif,
+					     unsigned int link_id,
 					     struct ieee80211_chanctx_conf *ctx)
 {
 	hwsim_check_magic(vif);
@@ -2733,6 +2734,7 @@ static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
 
 static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
 						struct ieee80211_vif *vif,
+						unsigned int link_id,
 						struct ieee80211_chanctx_conf *ctx)
 {
 	hwsim_check_magic(vif);
diff --git a/drivers/net/wireless/silabs/wfx/sta.c b/drivers/net/wireless/silabs/wfx/sta.c
index 6fb4ba1282c9..c47b9150097d 100644
--- a/drivers/net/wireless/silabs/wfx/sta.c
+++ b/drivers/net/wireless/silabs/wfx/sta.c
@@ -680,6 +680,7 @@ void wfx_change_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *
 }
 
 int wfx_assign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			   unsigned int link_id,
 			   struct ieee80211_chanctx_conf *conf)
 {
 	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
@@ -692,6 +693,7 @@ int wfx_assign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 }
 
 void wfx_unassign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			      unsigned int link_id,
 			      struct ieee80211_chanctx_conf *conf)
 {
 	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
diff --git a/drivers/net/wireless/silabs/wfx/sta.h b/drivers/net/wireless/silabs/wfx/sta.h
index d9c6bd632b20..3109d257fe94 100644
--- a/drivers/net/wireless/silabs/wfx/sta.h
+++ b/drivers/net/wireless/silabs/wfx/sta.h
@@ -48,8 +48,10 @@ int wfx_add_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *conf
 void wfx_remove_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *conf);
 void wfx_change_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *conf, u32 changed);
 int wfx_assign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			   unsigned int link_id,
 			   struct ieee80211_chanctx_conf *conf);
 void wfx_unassign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			      unsigned int link_id,
 			      struct ieee80211_chanctx_conf *conf);
 
 /* Hardware API Callbacks */
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index d365bdce2a10..b476f244a20e 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -4701,6 +4701,7 @@ static void wlcore_op_change_chanctx(struct ieee80211_hw *hw,
 
 static int wlcore_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 					struct ieee80211_vif *vif,
+					unsigned int link_id,
 					struct ieee80211_chanctx_conf *ctx)
 {
 	struct wl1271 *wl = hw->priv;
@@ -4751,6 +4752,7 @@ static int wlcore_op_assign_vif_chanctx(struct ieee80211_hw *hw,
 
 static void wlcore_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
 					   struct ieee80211_vif *vif,
+					   unsigned int link_id,
 					   struct ieee80211_chanctx_conf *ctx)
 {
 	struct wl1271 *wl = hw->priv;
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index e4868bccb446..4b3d19d88954 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -261,11 +261,13 @@ enum ieee80211_chanctx_switch_mode {
  * done.
  *
  * @vif: the vif that should be switched from old_ctx to new_ctx
+ * @link_id: the link ID that's switching
  * @old_ctx: the old context to which the vif was assigned
  * @new_ctx: the new context to which the vif must be assigned
  */
 struct ieee80211_vif_chanctx_switch {
 	struct ieee80211_vif *vif;
+	unsigned int link_id;
 	struct ieee80211_chanctx_conf *old_ctx;
 	struct ieee80211_chanctx_conf *new_ctx;
 };
@@ -4262,9 +4264,11 @@ struct ieee80211_ops {
 			       u32 changed);
 	int (*assign_vif_chanctx)(struct ieee80211_hw *hw,
 				  struct ieee80211_vif *vif,
+				  unsigned int link_id,
 				  struct ieee80211_chanctx_conf *ctx);
 	void (*unassign_vif_chanctx)(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif,
+				     unsigned int link_id,
 				     struct ieee80211_chanctx_conf *ctx);
 	int (*switch_vif_chanctx)(struct ieee80211_hw *hw,
 				  struct ieee80211_vif_chanctx_switch *vifs,
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index b9a03548c89a..e76565cb6292 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -844,9 +844,10 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 		sdata = wiphy_dereference(local->hw.wiphy,
 					  local->monitor_sdata);
 		if (sdata) {
-			ieee80211_vif_release_channel(sdata);
-			ret = ieee80211_vif_use_channel(sdata, chandef,
-					IEEE80211_CHANCTX_EXCLUSIVE);
+			ieee80211_link_release_channel(sdata->link[0]);
+			ret = ieee80211_link_use_channel(sdata->link[0],
+							 chandef,
+							 IEEE80211_CHANCTX_EXCLUSIVE);
 		}
 	} else if (local->open_count == local->monitors) {
 		local->_oper_chandef = *chandef;
@@ -1187,10 +1188,12 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	}
 
 	mutex_lock(&local->mtx);
-	err = ieee80211_vif_use_channel(sdata, &params->chandef,
-					IEEE80211_CHANCTX_SHARED);
+	err = ieee80211_link_use_channel(sdata->link[params->beacon.link_id],
+					 &params->chandef,
+					 IEEE80211_CHANCTX_SHARED);
 	if (!err)
-		ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
+		ieee80211_link_copy_chanctx_to_vlans(sdata->link[params->beacon.link_id],
+						     false);
 	mutex_unlock(&local->mtx);
 	if (err) {
 		sdata->vif.bss_conf.beacon_int = prev_beacon_int;
@@ -1300,7 +1303,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 
 error:
 	mutex_lock(&local->mtx);
-	ieee80211_vif_release_channel(sdata);
+	ieee80211_link_release_channel(sdata->link[params->beacon.link_id]);
 	mutex_unlock(&local->mtx);
 
 	return err;
@@ -1437,8 +1440,8 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
 	ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
 
 	mutex_lock(&local->mtx);
-	ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
-	ieee80211_vif_release_channel(sdata);
+	ieee80211_link_copy_chanctx_to_vlans(sdata->link[link_id], true);
+	ieee80211_link_release_channel(sdata->link[link_id]);
 	mutex_unlock(&local->mtx);
 
 	return 0;
@@ -2405,8 +2408,8 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
 	sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
 
 	mutex_lock(&sdata->local->mtx);
-	err = ieee80211_vif_use_channel(sdata, &setup->chandef,
-					IEEE80211_CHANCTX_SHARED);
+	err = ieee80211_link_use_channel(sdata->link[0], &setup->chandef,
+					 IEEE80211_CHANCTX_SHARED);
 	mutex_unlock(&sdata->local->mtx);
 	if (err)
 		return err;
@@ -2420,7 +2423,7 @@ static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
 
 	ieee80211_stop_mesh(sdata);
 	mutex_lock(&sdata->local->mtx);
-	ieee80211_vif_release_channel(sdata);
+	ieee80211_link_release_channel(sdata->link[0]);
 	kfree(sdata->u.mesh.ie);
 	mutex_unlock(&sdata->local->mtx);
 
@@ -3149,8 +3152,8 @@ static int ieee80211_start_radar_detection(struct wiphy *wiphy,
 	sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
 	sdata->deflink.needed_rx_chains = local->rx_chains;
 
-	err = ieee80211_vif_use_channel(sdata, chandef,
-					IEEE80211_CHANCTX_SHARED);
+	err = ieee80211_link_use_channel(sdata->link[0], chandef,
+					 IEEE80211_CHANCTX_SHARED);
 	if (err)
 		goto out_unlock;
 
@@ -3178,7 +3181,7 @@ static void ieee80211_end_cac(struct wiphy *wiphy,
 		cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work);
 
 		if (sdata->wdev.cac_started) {
-			ieee80211_vif_release_channel(sdata);
+			ieee80211_link_release_channel(sdata->link[0]);
 			sdata->wdev.cac_started = false;
 		}
 	}
@@ -3382,7 +3385,7 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
 		if (sdata->deflink.reserved_ready)
 			return 0;
 
-		return ieee80211_vif_use_reserved_context(sdata);
+		return ieee80211_link_use_reserved_context(sdata->link[0]);
 	}
 
 	if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
@@ -3647,16 +3650,16 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 	if (err)
 		goto out;
 
-	err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
-					    chanctx->mode,
-					    params->radar_required);
+	err = ieee80211_link_reserve_chanctx(sdata->link[0], &params->chandef,
+					     chanctx->mode,
+					     params->radar_required);
 	if (err)
 		goto out;
 
 	/* if reservation is invalid then this will fail */
 	err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
 	if (err) {
-		ieee80211_vif_unreserve_chanctx(sdata);
+		ieee80211_link_unreserve_chanctx(sdata->link[0]);
 		goto out;
 	}
 
@@ -3666,7 +3669,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 
 	err = ieee80211_set_csa_beacon(sdata, params, &changed);
 	if (err) {
-		ieee80211_vif_unreserve_chanctx(sdata);
+		ieee80211_link_unreserve_chanctx(sdata->link[0]);
 		goto out;
 	}
 
@@ -3925,9 +3928,9 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
 	int ret = -ENODATA;
 
 	rcu_read_lock();
-	chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+	chanctx_conf = rcu_dereference(sdata->vif.link_conf[link_id]->chanctx_conf);
 	if (chanctx_conf) {
-		*chandef = sdata->vif.bss_conf.chandef;
+		*chandef = sdata->vif.link_conf[link_id]->chandef;
 		ret = 0;
 	} else if (local->open_count > 0 &&
 		   local->open_count == local->monitors &&
@@ -3984,7 +3987,8 @@ static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
 	int ret;
 	u32 changed = 0;
 
-	ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
+	ret = ieee80211_link_change_bandwidth(sdata->link[link_id], chandef,
+					      &changed);
 	if (ret == 0)
 		ieee80211_link_info_change_notify(sdata, link_id, changed);
 
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 5d8b49f20198..4f25660d0eeb 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -15,12 +15,12 @@
 static int ieee80211_chanctx_num_assigned(struct ieee80211_local *local,
 					  struct ieee80211_chanctx *ctx)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_link_data *link;
 	int num = 0;
 
 	lockdep_assert_held(&local->chanctx_mtx);
 
-	list_for_each_entry(sdata, &ctx->assigned_vifs, assigned_chanctx_list)
+	list_for_each_entry(link, &ctx->assigned_links, assigned_chanctx_list)
 		num++;
 
 	return num;
@@ -29,12 +29,12 @@ static int ieee80211_chanctx_num_assigned(struct ieee80211_local *local,
 static int ieee80211_chanctx_num_reserved(struct ieee80211_local *local,
 					  struct ieee80211_chanctx *ctx)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_link_data *link;
 	int num = 0;
 
 	lockdep_assert_held(&local->chanctx_mtx);
 
-	list_for_each_entry(sdata, &ctx->reserved_vifs, reserved_chanctx_list)
+	list_for_each_entry(link, &ctx->reserved_links, reserved_chanctx_list)
 		num++;
 
 	return num;
@@ -67,12 +67,14 @@ static bool ieee80211_can_create_new_chanctx(struct ieee80211_local *local)
 }
 
 static struct ieee80211_chanctx *
-ieee80211_vif_get_chanctx(struct ieee80211_sub_if_data *sdata)
+ieee80211_vif_get_chanctx(struct ieee80211_sub_if_data *sdata,
+			  unsigned int link_id)
 {
+	struct ieee80211_bss_conf *link_conf = sdata->vif.link_conf[link_id];
 	struct ieee80211_local *local __maybe_unused = sdata->local;
 	struct ieee80211_chanctx_conf *conf;
 
-	conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
+	conf = rcu_dereference_protected(link_conf->chanctx_conf,
 					 lockdep_is_held(&local->chanctx_mtx));
 	if (!conf)
 		return NULL;
@@ -80,21 +82,27 @@ ieee80211_vif_get_chanctx(struct ieee80211_sub_if_data *sdata)
 	return container_of(conf, struct ieee80211_chanctx, conf);
 }
 
+static struct ieee80211_chanctx *
+ieee80211_link_get_chanctx(struct ieee80211_link_data *link)
+{
+	return ieee80211_vif_get_chanctx(link->sdata, link->link_id);
+}
+
 static const struct cfg80211_chan_def *
 ieee80211_chanctx_reserved_chandef(struct ieee80211_local *local,
 				   struct ieee80211_chanctx *ctx,
 				   const struct cfg80211_chan_def *compat)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_link_data *link;
 
 	lockdep_assert_held(&local->chanctx_mtx);
 
-	list_for_each_entry(sdata, &ctx->reserved_vifs,
+	list_for_each_entry(link, &ctx->reserved_links,
 			    reserved_chanctx_list) {
 		if (!compat)
-			compat = &sdata->deflink.reserved_chandef;
+			compat = &link->reserved_chandef;
 
-		compat = cfg80211_chandef_compatible(&sdata->deflink.reserved_chandef,
+		compat = cfg80211_chandef_compatible(&link->reserved_chandef,
 						     compat);
 		if (!compat)
 			break;
@@ -108,20 +116,23 @@ ieee80211_chanctx_non_reserved_chandef(struct ieee80211_local *local,
 				       struct ieee80211_chanctx *ctx,
 				       const struct cfg80211_chan_def *compat)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_link_data *link;
 
 	lockdep_assert_held(&local->chanctx_mtx);
 
-	list_for_each_entry(sdata, &ctx->assigned_vifs,
+	list_for_each_entry(link, &ctx->assigned_links,
 			    assigned_chanctx_list) {
-		if (sdata->deflink.reserved_chanctx != NULL)
+		struct ieee80211_bss_conf *link_conf =
+			link->sdata->vif.link_conf[link->link_id];
+
+		if (link->reserved_chanctx)
 			continue;
 
 		if (!compat)
-			compat = &sdata->vif.bss_conf.chandef;
+			compat = &link_conf->chandef;
 
 		compat = cfg80211_chandef_compatible(
-				&sdata->vif.bss_conf.chandef, compat);
+				&link_conf->chandef, compat);
 		if (!compat)
 			break;
 	}
@@ -157,7 +168,7 @@ ieee80211_chanctx_can_reserve_chandef(struct ieee80211_local *local,
 	if (ieee80211_chanctx_combined_chandef(local, ctx, def))
 		return true;
 
-	if (!list_empty(&ctx->reserved_vifs) &&
+	if (!list_empty(&ctx->reserved_links) &&
 	    ieee80211_chanctx_reserved_chandef(local, ctx, def))
 		return true;
 
@@ -193,13 +204,19 @@ ieee80211_find_reservation_chanctx(struct ieee80211_local *local,
 	return NULL;
 }
 
-static enum nl80211_chan_width ieee80211_get_sta_bw(struct sta_info *sta)
+static enum nl80211_chan_width ieee80211_get_sta_bw(struct sta_info *sta,
+						    unsigned int link_id)
 {
-	enum ieee80211_sta_rx_bandwidth width = ieee80211_sta_cap_rx_bw(sta);
+	enum ieee80211_sta_rx_bandwidth width =
+		ieee80211_sta_cap_rx_bw(sta, link_id);
+
+	/* no effect if this STA has no presence on this link */
+	if (!sta->sta.link[link_id])
+		return NL80211_CHAN_WIDTH_20_NOHT;
 
 	switch (width) {
 	case IEEE80211_STA_RX_BW_20:
-		if (sta->sta.deflink.ht_cap.ht_supported)
+		if (sta->sta.link[link_id]->ht_cap.ht_supported)
 			return NL80211_CHAN_WIDTH_20;
 		else
 			return NL80211_CHAN_WIDTH_20_NOHT;
@@ -227,7 +244,8 @@ static enum nl80211_chan_width ieee80211_get_sta_bw(struct sta_info *sta)
 }
 
 static enum nl80211_chan_width
-ieee80211_get_max_required_bw(struct ieee80211_sub_if_data *sdata)
+ieee80211_get_max_required_bw(struct ieee80211_sub_if_data *sdata,
+			      unsigned int link_id)
 {
 	enum nl80211_chan_width max_bw = NL80211_CHAN_WIDTH_20_NOHT;
 	struct sta_info *sta;
@@ -238,7 +256,7 @@ ieee80211_get_max_required_bw(struct ieee80211_sub_if_data *sdata)
 		    !(sta->sdata->bss && sta->sdata->bss == sdata->bss))
 			continue;
 
-		max_bw = max(max_bw, ieee80211_get_sta_bw(sta));
+		max_bw = max(max_bw, ieee80211_get_sta_bw(sta, link_id));
 	}
 	rcu_read_unlock();
 
@@ -246,27 +264,28 @@ ieee80211_get_max_required_bw(struct ieee80211_sub_if_data *sdata)
 }
 
 static enum nl80211_chan_width
-ieee80211_get_chanctx_max_required_bw(struct ieee80211_local *local,
-				      struct ieee80211_chanctx_conf *conf)
+ieee80211_get_chanctx_vif_max_required_bw(struct ieee80211_sub_if_data *sdata,
+					  struct ieee80211_chanctx_conf *conf)
 {
-	struct ieee80211_sub_if_data *sdata;
 	enum nl80211_chan_width max_bw = NL80211_CHAN_WIDTH_20_NOHT;
+	struct ieee80211_vif *vif = &sdata->vif;
+	int link_id;
 
-	rcu_read_lock();
-	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-		struct ieee80211_vif *vif = &sdata->vif;
+	for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
 		enum nl80211_chan_width width = NL80211_CHAN_WIDTH_20_NOHT;
+		struct ieee80211_bss_conf *link_conf =
+			sdata->vif.link_conf[link_id];
 
-		if (!ieee80211_sdata_running(sdata))
+		if (!link_conf)
 			continue;
 
-		if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) != conf)
+		if (rcu_access_pointer(link_conf->chanctx_conf) != conf)
 			continue;
 
 		switch (vif->type) {
 		case NL80211_IFTYPE_AP:
 		case NL80211_IFTYPE_AP_VLAN:
-			width = ieee80211_get_max_required_bw(sdata);
+			width = ieee80211_get_max_required_bw(sdata, link_id);
 			break;
 		case NL80211_IFTYPE_STATION:
 			/*
@@ -274,8 +293,8 @@ ieee80211_get_chanctx_max_required_bw(struct ieee80211_local *local,
 			 * point, so take the width from the chandef, but
 			 * account also for TDLS peers
 			 */
-			width = max(vif->bss_conf.chandef.width,
-				    ieee80211_get_max_required_bw(sdata));
+			width = max(link_conf->chandef.width,
+				    ieee80211_get_max_required_bw(sdata, link_id));
 			break;
 		case NL80211_IFTYPE_P2P_DEVICE:
 		case NL80211_IFTYPE_NAN:
@@ -283,7 +302,7 @@ ieee80211_get_chanctx_max_required_bw(struct ieee80211_local *local,
 		case NL80211_IFTYPE_ADHOC:
 		case NL80211_IFTYPE_MESH_POINT:
 		case NL80211_IFTYPE_OCB:
-			width = vif->bss_conf.chandef.width;
+			width = link_conf->chandef.width;
 			break;
 		case NL80211_IFTYPE_WDS:
 		case NL80211_IFTYPE_UNSPECIFIED:
@@ -293,12 +312,36 @@ ieee80211_get_chanctx_max_required_bw(struct ieee80211_local *local,
 		case NL80211_IFTYPE_P2P_GO:
 			WARN_ON_ONCE(1);
 		}
+
+		max_bw = max(max_bw, width);
+	}
+
+	return max_bw;
+}
+
+static enum nl80211_chan_width
+ieee80211_get_chanctx_max_required_bw(struct ieee80211_local *local,
+				      struct ieee80211_chanctx_conf *conf)
+{
+	struct ieee80211_sub_if_data *sdata;
+	enum nl80211_chan_width max_bw = NL80211_CHAN_WIDTH_20_NOHT;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+		enum nl80211_chan_width width;
+
+		if (!ieee80211_sdata_running(sdata))
+			continue;
+
+		width = ieee80211_get_chanctx_vif_max_required_bw(sdata, conf);
+
 		max_bw = max(max_bw, width);
 	}
 
 	/* use the configured bandwidth in case of monitor interface */
 	sdata = rcu_dereference(local->monitor_sdata);
-	if (sdata && rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) == conf)
+	if (sdata &&
+	    rcu_access_pointer(sdata->vif.link_conf[0]->chanctx_conf) == conf)
 		max_bw = max(max_bw, conf->def.width);
 
 	rcu_read_unlock();
@@ -350,7 +393,7 @@ static u32 _ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
 }
 
 /* calling this function is assuming that station vif is updated to
- * lates changes by calling ieee80211_vif_update_chandef
+ * lates changes by calling ieee80211_link_update_chandef
  */
 static void ieee80211_chan_bw_change(struct ieee80211_local *local,
 				     struct ieee80211_chanctx *ctx,
@@ -363,29 +406,38 @@ static void ieee80211_chan_bw_change(struct ieee80211_local *local,
 	rcu_read_lock();
 	list_for_each_entry_rcu(sta, &local->sta_list,
 				list) {
+		struct ieee80211_sub_if_data *sdata = sta->sdata;
 		enum ieee80211_sta_rx_bandwidth new_sta_bw;
+		unsigned int link_id;
 
 		if (!ieee80211_sdata_running(sta->sdata))
 			continue;
 
-		if (rcu_access_pointer(sta->sdata->vif.bss_conf.chanctx_conf) !=
-		    &ctx->conf)
-			continue;
+		for (link_id = 0; link_id < ARRAY_SIZE(sta->sdata->link); link_id++) {
+			struct ieee80211_bss_conf *link_conf =
+				sdata->vif.link_conf[link_id];
+
+			if (!link_conf)
+				continue;
 
-		new_sta_bw = ieee80211_sta_cur_vht_bw(sta);
+			if (rcu_access_pointer(link_conf->chanctx_conf) != &ctx->conf)
+				continue;
 
-		/* nothing change */
-		if (new_sta_bw == sta->sta.deflink.bandwidth)
-			continue;
+			new_sta_bw = ieee80211_sta_cur_vht_bw(sta, link_id);
 
-		/* vif changed to narrow BW and narrow BW for station wasn't
-		 * requested or vise versa */
-		if ((new_sta_bw < sta->sta.deflink.bandwidth) == !narrowed)
-			continue;
+			/* nothing change */
+			if (new_sta_bw == sta->sta.link[link_id]->bandwidth)
+				continue;
+
+			/* vif changed to narrow BW and narrow BW for station wasn't
+			 * requested or vise versa */
+			if ((new_sta_bw < sta->sta.link[link_id]->bandwidth) == !narrowed)
+				continue;
 
-		sta->sta.deflink.bandwidth = new_sta_bw;
-		rate_control_rate_update(local, sband, sta,
-					 IEEE80211_RC_BW_CHANGED);
+			sta->sta.link[link_id]->bandwidth = new_sta_bw;
+			rate_control_rate_update(local, sband, sta, link_id,
+						 IEEE80211_RC_BW_CHANGED);
+		}
 	}
 	rcu_read_unlock();
 }
@@ -508,9 +560,14 @@ bool ieee80211_is_radar_required(struct ieee80211_local *local)
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-		if (sdata->deflink.radar_required) {
-			rcu_read_unlock();
-			return true;
+		unsigned int link_id;
+
+		for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
+			if (sdata->link[link_id] &&
+			    sdata->link[link_id]->radar_required) {
+				rcu_read_unlock();
+				return true;
+			}
 		}
 	}
 	rcu_read_unlock();
@@ -531,15 +588,27 @@ ieee80211_chanctx_radar_required(struct ieee80211_local *local,
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+		unsigned int link_id;
+
 		if (!ieee80211_sdata_running(sdata))
 			continue;
-		if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) != conf)
-			continue;
-		if (!sdata->deflink.radar_required)
-			continue;
+		for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
+			struct ieee80211_bss_conf *link_conf =
+				sdata->vif.link_conf[link_id];
 
-		required = true;
-		break;
+			if (!link_conf)
+				continue;
+
+			if (rcu_access_pointer(link_conf->chanctx_conf) != conf)
+				continue;
+			if (!sdata->link[link_id]->radar_required)
+				continue;
+			required = true;
+			break;
+		}
+
+		if (required)
+			break;
 	}
 	rcu_read_unlock();
 
@@ -559,8 +628,8 @@ ieee80211_alloc_chanctx(struct ieee80211_local *local,
 	if (!ctx)
 		return NULL;
 
-	INIT_LIST_HEAD(&ctx->assigned_vifs);
-	INIT_LIST_HEAD(&ctx->reserved_vifs);
+	INIT_LIST_HEAD(&ctx->assigned_links);
+	INIT_LIST_HEAD(&ctx->reserved_links);
 	ctx->conf.def = *chandef;
 	ctx->conf.rx_chains_static = 1;
 	ctx->conf.rx_chains_dynamic = 1;
@@ -686,21 +755,32 @@ void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+		int link_id;
 
 		if (!ieee80211_sdata_running(sdata))
 			continue;
-		if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) != conf)
-			continue;
+
 		if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
 			continue;
 
-		if (!compat)
-			compat = &sdata->vif.bss_conf.chandef;
+		for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
+			struct ieee80211_bss_conf *link_conf =
+				sdata->vif.link_conf[link_id];
 
-		compat = cfg80211_chandef_compatible(
-				&sdata->vif.bss_conf.chandef, compat);
-		if (WARN_ON_ONCE(!compat))
-			break;
+			if (!link_conf)
+				continue;
+
+			if (rcu_access_pointer(link_conf->chanctx_conf) != conf)
+				continue;
+
+			if (!compat)
+				compat = &link_conf->chandef;
+
+			compat = cfg80211_chandef_compatible(&link_conf->chandef,
+							     compat);
+			if (WARN_ON_ONCE(!compat))
+				break;
+		}
 	}
 
 	/* TDLS peers can sometimes affect the chandef width */
@@ -748,9 +828,11 @@ static void ieee80211_recalc_radar_chanctx(struct ieee80211_local *local,
 	drv_change_chanctx(local, chanctx, IEEE80211_CHANCTX_CHANGE_RADAR);
 }
 
-static int ieee80211_assign_vif_chanctx(struct ieee80211_sub_if_data *sdata,
-					struct ieee80211_chanctx *new_ctx)
+static int ieee80211_assign_link_chanctx(struct ieee80211_link_data *link,
+					 struct ieee80211_chanctx *new_ctx)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+	unsigned int link_id = link->link_id;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_chanctx_conf *conf;
 	struct ieee80211_chanctx *curr_ctx = NULL;
@@ -759,29 +841,29 @@ static int ieee80211_assign_vif_chanctx(struct ieee80211_sub_if_data *sdata,
 	if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_NAN))
 		return -ENOTSUPP;
 
-	conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
+	conf = rcu_dereference_protected(sdata->vif.link_conf[link_id]->chanctx_conf,
 					 lockdep_is_held(&local->chanctx_mtx));
 
 	if (conf) {
 		curr_ctx = container_of(conf, struct ieee80211_chanctx, conf);
 
-		drv_unassign_vif_chanctx(local, sdata, curr_ctx);
+		drv_unassign_vif_chanctx(local, sdata, link_id, curr_ctx);
 		conf = NULL;
-		list_del(&sdata->assigned_chanctx_list);
+		list_del(&link->assigned_chanctx_list);
 	}
 
 	if (new_ctx) {
-		ret = drv_assign_vif_chanctx(local, sdata, new_ctx);
+		ret = drv_assign_vif_chanctx(local, sdata, link_id, new_ctx);
 		if (ret)
 			goto out;
 
 		conf = &new_ctx->conf;
-		list_add(&sdata->assigned_chanctx_list,
-			 &new_ctx->assigned_vifs);
+		list_add(&link->assigned_chanctx_list,
+			 &new_ctx->assigned_links);
 	}
 
 out:
-	rcu_assign_pointer(sdata->vif.bss_conf.chanctx_conf, conf);
+	rcu_assign_pointer(sdata->vif.link_conf[link_id]->chanctx_conf, conf);
 
 	sdata->vif.cfg.idle = !conf;
 
@@ -820,60 +902,64 @@ void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
 	rcu_read_lock();
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
 		u8 needed_static, needed_dynamic;
+		unsigned int link_id;
 
 		if (!ieee80211_sdata_running(sdata))
 			continue;
 
-		if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) !=
-						&chanctx->conf)
-			continue;
-
 		switch (sdata->vif.type) {
-		case NL80211_IFTYPE_P2P_DEVICE:
-		case NL80211_IFTYPE_NAN:
-			continue;
 		case NL80211_IFTYPE_STATION:
 			if (!sdata->u.mgd.associated)
 				continue;
 			break;
-		case NL80211_IFTYPE_AP_VLAN:
-			continue;
 		case NL80211_IFTYPE_AP:
 		case NL80211_IFTYPE_ADHOC:
 		case NL80211_IFTYPE_MESH_POINT:
 		case NL80211_IFTYPE_OCB:
 			break;
 		default:
-			WARN_ON_ONCE(1);
+			continue;
 		}
 
-		switch (sdata->deflink.smps_mode) {
-		default:
-			WARN_ONCE(1, "Invalid SMPS mode %d\n",
-				  sdata->deflink.smps_mode);
-			fallthrough;
-		case IEEE80211_SMPS_OFF:
-			needed_static = sdata->deflink.needed_rx_chains;
-			needed_dynamic = sdata->deflink.needed_rx_chains;
-			break;
-		case IEEE80211_SMPS_DYNAMIC:
-			needed_static = 1;
-			needed_dynamic = sdata->deflink.needed_rx_chains;
-			break;
-		case IEEE80211_SMPS_STATIC:
-			needed_static = 1;
-			needed_dynamic = 1;
-			break;
-		}
+		for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
+			struct ieee80211_link_data *link = sdata->link[link_id];
+			struct ieee80211_bss_conf *link_conf =
+				sdata->vif.link_conf[link_id];
+
+			if (!link_conf)
+				continue;
+
+			if (rcu_access_pointer(link_conf->chanctx_conf) != &chanctx->conf)
+				continue;
+
+			switch (link->smps_mode) {
+			default:
+				WARN_ONCE(1, "Invalid SMPS mode %d\n",
+					  link->smps_mode);
+				fallthrough;
+			case IEEE80211_SMPS_OFF:
+				needed_static = link->needed_rx_chains;
+				needed_dynamic = link->needed_rx_chains;
+				break;
+			case IEEE80211_SMPS_DYNAMIC:
+				needed_static = 1;
+				needed_dynamic = link->needed_rx_chains;
+				break;
+			case IEEE80211_SMPS_STATIC:
+				needed_static = 1;
+				needed_dynamic = 1;
+				break;
+			}
 
-		rx_chains_static = max(rx_chains_static, needed_static);
-		rx_chains_dynamic = max(rx_chains_dynamic, needed_dynamic);
+			rx_chains_static = max(rx_chains_static, needed_static);
+			rx_chains_dynamic = max(rx_chains_dynamic, needed_dynamic);
+		}
 	}
 
 	/* Disable SMPS for the monitor interface */
 	sdata = rcu_dereference(local->monitor_sdata);
 	if (sdata &&
-	    rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) == &chanctx->conf)
+	    rcu_access_pointer(sdata->vif.link_conf[0]->chanctx_conf) == &chanctx->conf)
 		rx_chains_dynamic = rx_chains_static = local->rx_chains;
 
 	rcu_read_unlock();
@@ -898,9 +984,12 @@ void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
 }
 
 static void
-__ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
-				      bool clear)
+__ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
+				       bool clear)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+	unsigned int link_id = link->link_id;
+	struct ieee80211_bss_conf *link_conf = sdata->vif.link_conf[link_id];
 	struct ieee80211_local *local __maybe_unused = sdata->local;
 	struct ieee80211_sub_if_data *vlan;
 	struct ieee80211_chanctx_conf *conf;
@@ -916,7 +1005,7 @@ __ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
 	 * channel context pointer for a while, possibly pointing
 	 * to a channel context that has already been freed.
 	 */
-	conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
+	conf = rcu_dereference_protected(link_conf->chanctx_conf,
 					 lockdep_is_held(&local->chanctx_mtx));
 	WARN_ON(!conf);
 
@@ -924,32 +1013,34 @@ __ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
 		conf = NULL;
 
 	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
-		rcu_assign_pointer(vlan->vif.bss_conf.chanctx_conf, conf);
+		rcu_assign_pointer(vlan->vif.link_conf[link_id]->chanctx_conf,
+				   conf);
 }
 
-void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
-					 bool clear)
+void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
+					  bool clear)
 {
-	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_local *local = link->sdata->local;
 
 	mutex_lock(&local->chanctx_mtx);
 
-	__ieee80211_vif_copy_chanctx_to_vlans(sdata, clear);
+	__ieee80211_link_copy_chanctx_to_vlans(link, clear);
 
 	mutex_unlock(&local->chanctx_mtx);
 }
 
-int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata)
+int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link)
 {
-	struct ieee80211_chanctx *ctx = sdata->deflink.reserved_chanctx;
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+	struct ieee80211_chanctx *ctx = link->reserved_chanctx;
 
 	lockdep_assert_held(&sdata->local->chanctx_mtx);
 
 	if (WARN_ON(!ctx))
 		return -EINVAL;
 
-	list_del(&sdata->reserved_chanctx_list);
-	sdata->deflink.reserved_chanctx = NULL;
+	list_del(&link->reserved_chanctx_list);
+	link->reserved_chanctx = NULL;
 
 	if (ieee80211_chanctx_refcount(sdata->local, ctx) == 0) {
 		if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER) {
@@ -974,17 +1065,18 @@ int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata)
 	return 0;
 }
 
-int ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
-				  const struct cfg80211_chan_def *chandef,
-				  enum ieee80211_chanctx_mode mode,
-				  bool radar_required)
+int ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
+				   const struct cfg80211_chan_def *chandef,
+				   enum ieee80211_chanctx_mode mode,
+				   bool radar_required)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_chanctx *new_ctx, *curr_ctx, *ctx;
 
 	lockdep_assert_held(&local->chanctx_mtx);
 
-	curr_ctx = ieee80211_vif_get_chanctx(sdata);
+	curr_ctx = ieee80211_link_get_chanctx(link);
 	if (curr_ctx && local->use_chanctx && !local->ops->switch_vif_chanctx)
 		return -ENOTSUPP;
 
@@ -998,11 +1090,11 @@ int ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
 			if (!curr_ctx ||
 			    (curr_ctx->replace_state ==
 			     IEEE80211_CHANCTX_WILL_BE_REPLACED) ||
-			    !list_empty(&curr_ctx->reserved_vifs)) {
+			    !list_empty(&curr_ctx->reserved_links)) {
 				/*
-				 * Another vif already requested this context
+				 * Another link already requested this context
 				 * for a reservation. Find another one hoping
-				 * all vifs assigned to it will also switch
+				 * all links assigned to it will also switch
 				 * soon enough.
 				 *
 				 * TODO: This needs a little more work as some
@@ -1011,13 +1103,13 @@ int ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
 				 * provided some channel context juggling was
 				 * performed.
 				 *
-				 * Consider ctx1..3, vif1..6, each ctx has 2
-				 * vifs. vif1 and vif2 from ctx1 request new
+				 * Consider ctx1..3, link1..6, each ctx has 2
+				 * links. link1 and link2 from ctx1 request new
 				 * different chandefs starting 2 in-place
 				 * reserations with ctx4 and ctx5 replacing
-				 * ctx1 and ctx2 respectively. Next vif5 and
-				 * vif6 from ctx3 reserve ctx4. If vif3 and
-				 * vif4 remain on ctx2 as they are then this
+				 * ctx1 and ctx2 respectively. Next link5 and
+				 * link6 from ctx3 reserve ctx4. If link3 and
+				 * link4 remain on ctx2 as they are then this
 				 * fails unless `replace_ctx` from ctx5 is
 				 * replaced with ctx3.
 				 */
@@ -1027,7 +1119,7 @@ int ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
 					    IEEE80211_CHANCTX_REPLACE_NONE)
 						continue;
 
-					if (!list_empty(&ctx->reserved_vifs))
+					if (!list_empty(&ctx->reserved_links))
 						continue;
 
 					curr_ctx = ctx;
@@ -1042,7 +1134,7 @@ int ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
 			if (!curr_ctx ||
 			    (curr_ctx->replace_state ==
 			     IEEE80211_CHANCTX_WILL_BE_REPLACED) ||
-			    !list_empty(&curr_ctx->reserved_vifs))
+			    !list_empty(&curr_ctx->reserved_links))
 				return -EBUSY;
 
 			new_ctx = ieee80211_alloc_chanctx(local, chandef, mode);
@@ -1061,25 +1153,27 @@ int ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
-	list_add(&sdata->reserved_chanctx_list, &new_ctx->reserved_vifs);
-	sdata->deflink.reserved_chanctx = new_ctx;
-	sdata->deflink.reserved_chandef = *chandef;
-	sdata->deflink.reserved_radar_required = radar_required;
-	sdata->deflink.reserved_ready = false;
+	list_add(&link->reserved_chanctx_list, &new_ctx->reserved_links);
+	link->reserved_chanctx = new_ctx;
+	link->reserved_chandef = *chandef;
+	link->reserved_radar_required = radar_required;
+	link->reserved_ready = false;
 
 	return 0;
 }
 
 static void
-ieee80211_vif_chanctx_reservation_complete(struct ieee80211_sub_if_data *sdata)
+ieee80211_link_chanctx_reservation_complete(struct ieee80211_link_data *link)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_ADHOC:
 	case NL80211_IFTYPE_AP:
 	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_OCB:
 		ieee80211_queue_work(&sdata->local->hw,
-				     &sdata->deflink.csa_finalize_work);
+				     &link->csa_finalize_work);
 		break;
 	case NL80211_IFTYPE_STATION:
 		ieee80211_queue_work(&sdata->local->hw,
@@ -1100,23 +1194,28 @@ ieee80211_vif_chanctx_reservation_complete(struct ieee80211_sub_if_data *sdata)
 }
 
 static void
-ieee80211_vif_update_chandef(struct ieee80211_sub_if_data *sdata,
-			     const struct cfg80211_chan_def *chandef)
+ieee80211_link_update_chandef(struct ieee80211_link_data *link,
+			      const struct cfg80211_chan_def *chandef)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+	unsigned int link_id = link->link_id;
 	struct ieee80211_sub_if_data *vlan;
 
-	sdata->vif.bss_conf.chandef = *chandef;
+	sdata->vif.link_conf[link_id]->chandef = *chandef;
 
 	if (sdata->vif.type != NL80211_IFTYPE_AP)
 		return;
 
 	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
-		vlan->vif.bss_conf.chandef = *chandef;
+		vlan->vif.link_conf[link_id]->chandef = *chandef;
 }
 
 static int
-ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata)
+ieee80211_link_use_reserved_reassign(struct ieee80211_link_data *link)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+	unsigned int link_id = link->link_id;
+	struct ieee80211_bss_conf *link_conf = sdata->vif.link_conf[link_id];
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_vif_chanctx_switch vif_chsw[1] = {};
 	struct ieee80211_chanctx *old_ctx, *new_ctx;
@@ -1127,10 +1226,10 @@ ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata)
 	lockdep_assert_held(&local->mtx);
 	lockdep_assert_held(&local->chanctx_mtx);
 
-	new_ctx = sdata->deflink.reserved_chanctx;
-	old_ctx = ieee80211_vif_get_chanctx(sdata);
+	new_ctx = link->reserved_chanctx;
+	old_ctx = ieee80211_link_get_chanctx(link);
 
-	if (WARN_ON(!sdata->deflink.reserved_ready))
+	if (WARN_ON(!link->reserved_ready))
 		return -EBUSY;
 
 	if (WARN_ON(!new_ctx))
@@ -1144,23 +1243,24 @@ ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata)
 		return -EINVAL;
 
 	chandef = ieee80211_chanctx_non_reserved_chandef(local, new_ctx,
-				&sdata->deflink.reserved_chandef);
+				&link->reserved_chandef);
 	if (WARN_ON(!chandef))
 		return -EINVAL;
 
-	if (sdata->vif.bss_conf.chandef.width != sdata->deflink.reserved_chandef.width)
+	if (link_conf->chandef.width != link->reserved_chandef.width)
 		changed = BSS_CHANGED_BANDWIDTH;
 
-	ieee80211_vif_update_chandef(sdata, &sdata->deflink.reserved_chandef);
+	ieee80211_link_update_chandef(link, &link->reserved_chandef);
 
 	ieee80211_change_chanctx(local, new_ctx, old_ctx, chandef);
 
 	vif_chsw[0].vif = &sdata->vif;
 	vif_chsw[0].old_ctx = &old_ctx->conf;
 	vif_chsw[0].new_ctx = &new_ctx->conf;
+	vif_chsw[0].link_id = link->link_id;
 
-	list_del(&sdata->reserved_chanctx_list);
-	sdata->deflink.reserved_chanctx = NULL;
+	list_del(&link->reserved_chanctx_list);
+	link->reserved_chanctx = NULL;
 
 	err = drv_switch_vif_chanctx(local, vif_chsw, 1,
 				     CHANCTX_SWMODE_REASSIGN_VIF);
@@ -1171,11 +1271,11 @@ ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata)
 		goto out;
 	}
 
-	list_move(&sdata->assigned_chanctx_list, &new_ctx->assigned_vifs);
-	rcu_assign_pointer(sdata->vif.bss_conf.chanctx_conf, &new_ctx->conf);
+	list_move(&link->assigned_chanctx_list, &new_ctx->assigned_links);
+	rcu_assign_pointer(link_conf->chanctx_conf, &new_ctx->conf);
 
 	if (sdata->vif.type == NL80211_IFTYPE_AP)
-		__ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
+		__ieee80211_link_copy_chanctx_to_vlans(link, false);
 
 	ieee80211_check_fast_xmit_iface(sdata);
 
@@ -1187,25 +1287,27 @@ ieee80211_vif_use_reserved_reassign(struct ieee80211_sub_if_data *sdata)
 	ieee80211_recalc_radar_chanctx(local, new_ctx);
 
 	if (changed)
-		ieee80211_link_info_change_notify(sdata, 0, changed);
+		ieee80211_link_info_change_notify(sdata, link_id, changed);
 
 out:
-	ieee80211_vif_chanctx_reservation_complete(sdata);
+	ieee80211_link_chanctx_reservation_complete(link);
 	return err;
 }
 
 static int
-ieee80211_vif_use_reserved_assign(struct ieee80211_sub_if_data *sdata)
+ieee80211_link_use_reserved_assign(struct ieee80211_link_data *link)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+	unsigned int link_id = link->link_id;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_chanctx *old_ctx, *new_ctx;
 	const struct cfg80211_chan_def *chandef;
 	int err;
 
-	old_ctx = ieee80211_vif_get_chanctx(sdata);
-	new_ctx = sdata->deflink.reserved_chanctx;
+	old_ctx = ieee80211_vif_get_chanctx(sdata, link_id);
+	new_ctx = link->reserved_chanctx;
 
-	if (WARN_ON(!sdata->deflink.reserved_ready))
+	if (WARN_ON(!link->reserved_ready))
 		return -EINVAL;
 
 	if (WARN_ON(old_ctx))
@@ -1219,16 +1321,16 @@ ieee80211_vif_use_reserved_assign(struct ieee80211_sub_if_data *sdata)
 		return -EINVAL;
 
 	chandef = ieee80211_chanctx_non_reserved_chandef(local, new_ctx,
-				&sdata->deflink.reserved_chandef);
+				&link->reserved_chandef);
 	if (WARN_ON(!chandef))
 		return -EINVAL;
 
 	ieee80211_change_chanctx(local, new_ctx, new_ctx, chandef);
 
-	list_del(&sdata->reserved_chanctx_list);
-	sdata->deflink.reserved_chanctx = NULL;
+	list_del(&link->reserved_chanctx_list);
+	link->reserved_chanctx = NULL;
 
-	err = ieee80211_assign_vif_chanctx(sdata, new_ctx);
+	err = ieee80211_assign_link_chanctx(link, new_ctx);
 	if (err) {
 		if (ieee80211_chanctx_refcount(local, new_ctx) == 0)
 			ieee80211_free_chanctx(local, new_ctx);
@@ -1237,19 +1339,20 @@ ieee80211_vif_use_reserved_assign(struct ieee80211_sub_if_data *sdata)
 	}
 
 out:
-	ieee80211_vif_chanctx_reservation_complete(sdata);
+	ieee80211_link_chanctx_reservation_complete(link);
 	return err;
 }
 
 static bool
-ieee80211_vif_has_in_place_reservation(struct ieee80211_sub_if_data *sdata)
+ieee80211_link_has_in_place_reservation(struct ieee80211_link_data *link)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
 	struct ieee80211_chanctx *old_ctx, *new_ctx;
 
 	lockdep_assert_held(&sdata->local->chanctx_mtx);
 
-	new_ctx = sdata->deflink.reserved_chanctx;
-	old_ctx = ieee80211_vif_get_chanctx(sdata);
+	new_ctx = link->reserved_chanctx;
+	old_ctx = ieee80211_link_get_chanctx(link);
 
 	if (!old_ctx)
 		return false;
@@ -1289,7 +1392,7 @@ static int ieee80211_chsw_switch_vifs(struct ieee80211_local *local,
 				      int n_vifs)
 {
 	struct ieee80211_vif_chanctx_switch *vif_chsw;
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_link_data *link;
 	struct ieee80211_chanctx *ctx, *old_ctx;
 	int i, err;
 
@@ -1310,16 +1413,16 @@ static int ieee80211_chsw_switch_vifs(struct ieee80211_local *local,
 			goto out;
 		}
 
-		list_for_each_entry(sdata, &ctx->reserved_vifs,
+		list_for_each_entry(link, &ctx->reserved_links,
 				    reserved_chanctx_list) {
-			if (!ieee80211_vif_has_in_place_reservation(
-					sdata))
+			if (!ieee80211_link_has_in_place_reservation(link))
 				continue;
 
-			old_ctx = ieee80211_vif_get_chanctx(sdata);
-			vif_chsw[i].vif = &sdata->vif;
+			old_ctx = ieee80211_link_get_chanctx(link);
+			vif_chsw[i].vif = &link->sdata->vif;
 			vif_chsw[i].old_ctx = &old_ctx->conf;
 			vif_chsw[i].new_ctx = &ctx->conf;
+			vif_chsw[i].link_id = link->link_id;
 
 			i++;
 		}
@@ -1345,7 +1448,7 @@ static int ieee80211_chsw_switch_ctxs(struct ieee80211_local *local)
 		if (ctx->replace_state != IEEE80211_CHANCTX_REPLACES_OTHER)
 			continue;
 
-		if (!list_empty(&ctx->replace_ctx->assigned_vifs))
+		if (!list_empty(&ctx->replace_ctx->assigned_links))
 			continue;
 
 		ieee80211_del_chanctx(local, ctx->replace_ctx);
@@ -1362,7 +1465,7 @@ static int ieee80211_chsw_switch_ctxs(struct ieee80211_local *local)
 		if (ctx->replace_state != IEEE80211_CHANCTX_REPLACES_OTHER)
 			continue;
 
-		if (!list_empty(&ctx->replace_ctx->assigned_vifs))
+		if (!list_empty(&ctx->replace_ctx->assigned_links))
 			continue;
 
 		ieee80211_del_chanctx(local, ctx);
@@ -1374,7 +1477,6 @@ static int ieee80211_chsw_switch_ctxs(struct ieee80211_local *local)
 
 static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)
 {
-	struct ieee80211_sub_if_data *sdata, *sdata_tmp;
 	struct ieee80211_chanctx *ctx, *ctx_tmp, *old_ctx;
 	struct ieee80211_chanctx *new_ctx = NULL;
 	int err, n_assigned, n_reserved, n_ready;
@@ -1400,6 +1502,8 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)
 	 */
 
 	list_for_each_entry(ctx, &local->chanctx_list, list) {
+		struct ieee80211_link_data *link;
+
 		if (ctx->replace_state != IEEE80211_CHANCTX_REPLACES_OTHER)
 			continue;
 
@@ -1417,12 +1521,12 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)
 		n_reserved = 0;
 		n_ready = 0;
 
-		list_for_each_entry(sdata, &ctx->replace_ctx->assigned_vifs,
+		list_for_each_entry(link, &ctx->replace_ctx->assigned_links,
 				    assigned_chanctx_list) {
 			n_assigned++;
-			if (sdata->deflink.reserved_chanctx) {
+			if (link->reserved_chanctx) {
 				n_reserved++;
-				if (sdata->deflink.reserved_ready)
+				if (link->reserved_ready)
 					n_ready++;
 			}
 		}
@@ -1439,13 +1543,13 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)
 		}
 
 		ctx->conf.radar_enabled = false;
-		list_for_each_entry(sdata, &ctx->reserved_vifs,
+		list_for_each_entry(link, &ctx->reserved_links,
 				    reserved_chanctx_list) {
-			if (ieee80211_vif_has_in_place_reservation(sdata) &&
-			    !sdata->deflink.reserved_ready)
+			if (ieee80211_link_has_in_place_reservation(link) &&
+			    !link->reserved_ready)
 				return -EAGAIN;
 
-			old_ctx = ieee80211_vif_get_chanctx(sdata);
+			old_ctx = ieee80211_link_get_chanctx(link);
 			if (old_ctx) {
 				if (old_ctx->replace_state ==
 				    IEEE80211_CHANCTX_WILL_BE_REPLACED)
@@ -1456,7 +1560,7 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)
 				n_vifs_ctxless++;
 			}
 
-			if (sdata->deflink.reserved_radar_required)
+			if (link->reserved_radar_required)
 				ctx->conf.radar_enabled = true;
 		}
 	}
@@ -1499,6 +1603,8 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)
 	 * context(s).
 	 */
 	list_for_each_entry(ctx, &local->chanctx_list, list) {
+		struct ieee80211_link_data *link, *link_tmp;
+
 		if (ctx->replace_state != IEEE80211_CHANCTX_REPLACES_OTHER)
 			continue;
 
@@ -1507,32 +1613,34 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)
 			goto err;
 		}
 
-		list_for_each_entry(sdata, &ctx->reserved_vifs,
+		list_for_each_entry(link, &ctx->reserved_links,
 				    reserved_chanctx_list) {
+			struct ieee80211_sub_if_data *sdata = link->sdata;
+			struct ieee80211_bss_conf *link_conf =
+				sdata->vif.link_conf[link->link_id];
 			u32 changed = 0;
 
-			if (!ieee80211_vif_has_in_place_reservation(sdata))
+			if (!ieee80211_link_has_in_place_reservation(link))
 				continue;
 
-			rcu_assign_pointer(sdata->vif.bss_conf.chanctx_conf,
+			rcu_assign_pointer(link_conf->chanctx_conf,
 					   &ctx->conf);
 
 			if (sdata->vif.type == NL80211_IFTYPE_AP)
-				__ieee80211_vif_copy_chanctx_to_vlans(sdata,
-								      false);
+				__ieee80211_link_copy_chanctx_to_vlans(link,
+								       false);
 
 			ieee80211_check_fast_xmit_iface(sdata);
 
-			sdata->deflink.radar_required = sdata->deflink.reserved_radar_required;
+			link->radar_required = link->reserved_radar_required;
 
-			if (sdata->vif.bss_conf.chandef.width !=
-			    sdata->deflink.reserved_chandef.width)
+			if (link_conf->chandef.width != link->reserved_chandef.width)
 				changed = BSS_CHANGED_BANDWIDTH;
 
-			ieee80211_vif_update_chandef(sdata,
-						     &sdata->deflink.reserved_chandef);
+			ieee80211_link_update_chandef(link, &link->reserved_chandef);
 			if (changed)
-				ieee80211_link_info_change_notify(sdata, 0,
+				ieee80211_link_info_change_notify(sdata,
+								  link->link_id,
 								  changed);
 
 			ieee80211_recalc_txpower(sdata, false);
@@ -1543,17 +1651,17 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)
 		ieee80211_recalc_radar_chanctx(local, ctx);
 		ieee80211_recalc_chanctx_min_def(local, ctx);
 
-		list_for_each_entry_safe(sdata, sdata_tmp, &ctx->reserved_vifs,
+		list_for_each_entry_safe(link, link_tmp, &ctx->reserved_links,
 					 reserved_chanctx_list) {
-			if (ieee80211_vif_get_chanctx(sdata) != ctx)
+			if (ieee80211_link_get_chanctx(link) != ctx)
 				continue;
 
-			list_del(&sdata->reserved_chanctx_list);
-			list_move(&sdata->assigned_chanctx_list,
-				  &ctx->assigned_vifs);
-			sdata->deflink.reserved_chanctx = NULL;
+			list_del(&link->reserved_chanctx_list);
+			list_move(&link->assigned_chanctx_list,
+				  &ctx->assigned_links);
+			link->reserved_chanctx = NULL;
 
-			ieee80211_vif_chanctx_reservation_complete(sdata);
+			ieee80211_link_chanctx_reservation_complete(link);
 		}
 
 		/*
@@ -1563,31 +1671,29 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)
 		 * reservation for originally requested interface has already
 		 * succeeded at this point.
 		 */
-		list_for_each_entry_safe(sdata, sdata_tmp, &ctx->reserved_vifs,
+		list_for_each_entry_safe(link, link_tmp, &ctx->reserved_links,
 					 reserved_chanctx_list) {
-			if (WARN_ON(ieee80211_vif_has_in_place_reservation(
-					sdata)))
+			if (WARN_ON(ieee80211_link_has_in_place_reservation(link)))
 				continue;
 
-			if (WARN_ON(sdata->deflink.reserved_chanctx != ctx))
+			if (WARN_ON(link->reserved_chanctx != ctx))
 				continue;
 
-			if (!sdata->deflink.reserved_ready)
+			if (!link->reserved_ready)
 				continue;
 
-			if (ieee80211_vif_get_chanctx(sdata))
-				err = ieee80211_vif_use_reserved_reassign(
-						sdata);
+			if (ieee80211_link_get_chanctx(link))
+				err = ieee80211_link_use_reserved_reassign(link);
 			else
-				err = ieee80211_vif_use_reserved_assign(sdata);
+				err = ieee80211_link_use_reserved_assign(link);
 
 			if (err) {
-				sdata_info(sdata,
-					   "failed to finalize (re-)assign reservation (err=%d)\n",
-					   err);
-				ieee80211_vif_unreserve_chanctx(sdata);
+				link_info(link,
+					  "failed to finalize (re-)assign reservation (err=%d)\n",
+					  err);
+				ieee80211_link_unreserve_chanctx(link);
 				cfg80211_stop_iface(local->hw.wiphy,
-						    &sdata->wdev,
+						    &link->sdata->wdev,
 						    GFP_KERNEL);
 			}
 		}
@@ -1613,21 +1719,26 @@ static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)
 
 err:
 	list_for_each_entry(ctx, &local->chanctx_list, list) {
+		struct ieee80211_link_data *link, *link_tmp;
+
 		if (ctx->replace_state != IEEE80211_CHANCTX_REPLACES_OTHER)
 			continue;
 
-		list_for_each_entry_safe(sdata, sdata_tmp, &ctx->reserved_vifs,
+		list_for_each_entry_safe(link, link_tmp, &ctx->reserved_links,
 					 reserved_chanctx_list) {
-			ieee80211_vif_unreserve_chanctx(sdata);
-			ieee80211_vif_chanctx_reservation_complete(sdata);
+			ieee80211_link_unreserve_chanctx(link);
+			ieee80211_link_chanctx_reservation_complete(link);
 		}
 	}
 
 	return err;
 }
 
-static void __ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata)
+static void __ieee80211_link_release_channel(struct ieee80211_link_data *link)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+	unsigned int link_id = link->link_id;
+	struct ieee80211_bss_conf *link_conf = sdata->vif.link_conf[link_id];
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_chanctx_conf *conf;
 	struct ieee80211_chanctx *ctx;
@@ -1635,38 +1746,38 @@ static void __ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata)
 
 	lockdep_assert_held(&local->chanctx_mtx);
 
-	conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
+	conf = rcu_dereference_protected(link_conf->chanctx_conf,
 					 lockdep_is_held(&local->chanctx_mtx));
 	if (!conf)
 		return;
 
 	ctx = container_of(conf, struct ieee80211_chanctx, conf);
 
-	if (sdata->deflink.reserved_chanctx) {
-		if (sdata->deflink.reserved_chanctx->replace_state ==
-		    IEEE80211_CHANCTX_REPLACES_OTHER &&
-		    ieee80211_chanctx_num_reserved(local,
-						   sdata->deflink.reserved_chanctx) > 1)
+	if (link->reserved_chanctx) {
+		if (link->reserved_chanctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER &&
+		    ieee80211_chanctx_num_reserved(local, link->reserved_chanctx) > 1)
 			use_reserved_switch = true;
 
-		ieee80211_vif_unreserve_chanctx(sdata);
+		ieee80211_link_unreserve_chanctx(link);
 	}
 
-	ieee80211_assign_vif_chanctx(sdata, NULL);
+	ieee80211_assign_link_chanctx(link, NULL);
 	if (ieee80211_chanctx_refcount(local, ctx) == 0)
 		ieee80211_free_chanctx(local, ctx);
 
-	sdata->deflink.radar_required = false;
+	link->radar_required = false;
 
 	/* Unreserving may ready an in-place reservation. */
 	if (use_reserved_switch)
 		ieee80211_vif_use_reserved_switch(local);
 }
 
-int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
-			      const struct cfg80211_chan_def *chandef,
-			      enum ieee80211_chanctx_mode mode)
+int ieee80211_link_use_channel(struct ieee80211_link_data *link,
+			       const struct cfg80211_chan_def *chandef,
+			       enum ieee80211_chanctx_mode mode)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+	unsigned int link_id = link->link_id;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_chanctx *ctx;
 	u8 radar_detect_width = 0;
@@ -1686,14 +1797,14 @@ int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
 	if (ret > 0)
 		radar_detect_width = BIT(chandef->width);
 
-	sdata->deflink.radar_required = ret;
+	sdata->link[link_id]->radar_required = ret;
 
 	ret = ieee80211_check_combinations(sdata, chandef, mode,
 					   radar_detect_width);
 	if (ret < 0)
 		goto out;
 
-	__ieee80211_vif_release_channel(sdata);
+	__ieee80211_link_release_channel(link);
 
 	ctx = ieee80211_find_chanctx(local, chandef, mode);
 	if (!ctx)
@@ -1703,9 +1814,9 @@ int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
 		goto out;
 	}
 
-	ieee80211_vif_update_chandef(sdata, chandef);
+	ieee80211_link_update_chandef(link, chandef);
 
-	ret = ieee80211_assign_vif_chanctx(sdata, ctx);
+	ret = ieee80211_assign_link_chanctx(link, ctx);
 	if (ret) {
 		/* if assign fails refcount stays the same */
 		if (ieee80211_chanctx_refcount(local, ctx) == 0)
@@ -1717,14 +1828,15 @@ int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
 	ieee80211_recalc_radar_chanctx(local, ctx);
  out:
 	if (ret)
-		sdata->deflink.radar_required = false;
+		link->radar_required = false;
 
 	mutex_unlock(&local->chanctx_mtx);
 	return ret;
 }
 
-int ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata)
+int ieee80211_link_use_reserved_context(struct ieee80211_link_data *link)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_chanctx *new_ctx;
 	struct ieee80211_chanctx *old_ctx;
@@ -1733,8 +1845,8 @@ int ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata)
 	lockdep_assert_held(&local->mtx);
 	lockdep_assert_held(&local->chanctx_mtx);
 
-	new_ctx = sdata->deflink.reserved_chanctx;
-	old_ctx = ieee80211_vif_get_chanctx(sdata);
+	new_ctx = link->reserved_chanctx;
+	old_ctx = ieee80211_link_get_chanctx(link);
 
 	if (WARN_ON(!new_ctx))
 		return -EINVAL;
@@ -1743,16 +1855,16 @@ int ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata)
 		    IEEE80211_CHANCTX_WILL_BE_REPLACED))
 		return -EINVAL;
 
-	if (WARN_ON(sdata->deflink.reserved_ready))
+	if (WARN_ON(link->reserved_ready))
 		return -EINVAL;
 
-	sdata->deflink.reserved_ready = true;
+	link->reserved_ready = true;
 
 	if (new_ctx->replace_state == IEEE80211_CHANCTX_REPLACE_NONE) {
 		if (old_ctx)
-			return ieee80211_vif_use_reserved_reassign(sdata);
+			return ieee80211_link_use_reserved_reassign(link);
 
-		return ieee80211_vif_use_reserved_assign(sdata);
+		return ieee80211_link_use_reserved_assign(link);
 	}
 
 	/*
@@ -1784,10 +1896,13 @@ int ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata)
 	return 0;
 }
 
-int ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
-				   const struct cfg80211_chan_def *chandef,
-				   u32 *changed)
+int ieee80211_link_change_bandwidth(struct ieee80211_link_data *link,
+				    const struct cfg80211_chan_def *chandef,
+				    u32 *changed)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+	unsigned int link_id = link->link_id;
+	struct ieee80211_bss_conf *link_conf = sdata->vif.link_conf[link_id];
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_chanctx_conf *conf;
 	struct ieee80211_chanctx *ctx;
@@ -1799,18 +1914,18 @@ int ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
 		return -EINVAL;
 
 	mutex_lock(&local->chanctx_mtx);
-	if (cfg80211_chandef_identical(chandef, &sdata->vif.bss_conf.chandef)) {
+	if (cfg80211_chandef_identical(chandef, &link_conf->chandef)) {
 		ret = 0;
 		goto out;
 	}
 
 	if (chandef->width == NL80211_CHAN_WIDTH_20_NOHT ||
-	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) {
+	    link_conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) {
 		ret = -EINVAL;
 		goto out;
 	}
 
-	conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
+	conf = rcu_dereference_protected(link_conf->chanctx_conf,
 					 lockdep_is_held(&local->chanctx_mtx));
 	if (!conf) {
 		ret = -EINVAL;
@@ -1845,7 +1960,7 @@ int ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
 		break;
 	}
 
-	ieee80211_vif_update_chandef(sdata, chandef);
+	ieee80211_link_update_chandef(link, chandef);
 
 	ieee80211_recalc_chanctx_chantype(local, ctx);
 
@@ -1856,19 +1971,24 @@ int ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
 	return ret;
 }
 
-void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata)
+void ieee80211_link_release_channel(struct ieee80211_link_data *link)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+
 	WARN_ON(sdata->dev && netif_carrier_ok(sdata->dev));
 
 	lockdep_assert_held(&sdata->local->mtx);
 
 	mutex_lock(&sdata->local->chanctx_mtx);
-	__ieee80211_vif_release_channel(sdata);
+	__ieee80211_link_release_channel(link);
 	mutex_unlock(&sdata->local->chanctx_mtx);
 }
 
-void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata)
+void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link)
 {
+	struct ieee80211_sub_if_data *sdata = link->sdata;
+	unsigned int link_id = link->link_id;
+	struct ieee80211_bss_conf *link_conf = sdata->vif.link_conf[link_id];
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_sub_if_data *ap;
 	struct ieee80211_chanctx_conf *conf;
@@ -1880,9 +2000,9 @@ void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata)
 
 	mutex_lock(&local->chanctx_mtx);
 
-	conf = rcu_dereference_protected(ap->vif.bss_conf.chanctx_conf,
+	conf = rcu_dereference_protected(ap->vif.link_conf[link_id]->chanctx_conf,
 					 lockdep_is_held(&local->chanctx_mtx));
-	rcu_assign_pointer(sdata->vif.bss_conf.chanctx_conf, conf);
+	rcu_assign_pointer(link_conf->chanctx_conf, conf);
 	mutex_unlock(&local->chanctx_mtx);
 }
 
diff --git a/net/mac80211/debug.h b/net/mac80211/debug.h
index d90a8f9cc3fd..3302e8da0314 100644
--- a/net/mac80211/debug.h
+++ b/net/mac80211/debug.h
@@ -1,4 +1,8 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Portions
+ * Copyright (C) 2022 Intel Corporation
+ */
 #ifndef __MAC80211_DEBUG_H
 #define __MAC80211_DEBUG_H
 #include <net/cfg80211.h>
@@ -130,6 +134,16 @@ do {									\
 #define sdata_dbg(sdata, fmt, ...)					\
 	_sdata_dbg(1, sdata, fmt, ##__VA_ARGS__)
 
+#define link_info(link, fmt, ...)					\
+	_sdata_info((link)->sdata, "[link %d] " fmt, (link)->link_id,	\
+		    ##__VA_ARGS__)
+#define link_err(link, fmt, ...)					\
+	_sdata_err((link)->sdata, "[link %d] " fmt, (link)->link_id,	\
+		   ##__VA_ARGS__)
+#define link_dbg(link, fmt, ...)					\
+	_sdata_dbg(1, (link)->sdata, "[link %d] " fmt, (link)->link_id,	\
+		   ##__VA_ARGS__)
+
 #define ht_dbg(sdata, fmt, ...)						\
 	_sdata_dbg(MAC80211_HT_DEBUG,					\
 		   sdata, fmt, ##__VA_ARGS__)
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 15ab8d00815b..9238283a8237 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -938,6 +938,7 @@ static inline void drv_change_chanctx(struct ieee80211_local *local,
 
 static inline int drv_assign_vif_chanctx(struct ieee80211_local *local,
 					 struct ieee80211_sub_if_data *sdata,
+					 unsigned int link_id,
 					 struct ieee80211_chanctx *ctx)
 {
 	int ret = 0;
@@ -945,11 +946,12 @@ static inline int drv_assign_vif_chanctx(struct ieee80211_local *local,
 	if (!check_sdata_in_driver(sdata))
 		return -EIO;
 
-	trace_drv_assign_vif_chanctx(local, sdata, ctx);
+	trace_drv_assign_vif_chanctx(local, sdata, link_id, ctx);
 	if (local->ops->assign_vif_chanctx) {
 		WARN_ON_ONCE(!ctx->driver_present);
 		ret = local->ops->assign_vif_chanctx(&local->hw,
 						     &sdata->vif,
+						     link_id,
 						     &ctx->conf);
 	}
 	trace_drv_return_int(local, ret);
@@ -959,6 +961,7 @@ static inline int drv_assign_vif_chanctx(struct ieee80211_local *local,
 
 static inline void drv_unassign_vif_chanctx(struct ieee80211_local *local,
 					    struct ieee80211_sub_if_data *sdata,
+					    unsigned int link_id,
 					    struct ieee80211_chanctx *ctx)
 {
 	might_sleep();
@@ -966,11 +969,12 @@ static inline void drv_unassign_vif_chanctx(struct ieee80211_local *local,
 	if (!check_sdata_in_driver(sdata))
 		return;
 
-	trace_drv_unassign_vif_chanctx(local, sdata, ctx);
+	trace_drv_unassign_vif_chanctx(local, sdata, link_id, ctx);
 	if (local->ops->unassign_vif_chanctx) {
 		WARN_ON_ONCE(!ctx->driver_present);
 		local->ops->unassign_vif_chanctx(&local->hw,
 						 &sdata->vif,
+						 link_id,
 						 &ctx->conf);
 	}
 	trace_drv_return_void(local);
diff --git a/net/mac80211/eht.c b/net/mac80211/eht.c
index 96c9486bf2fe..2d9c6e845ce4 100644
--- a/net/mac80211/eht.c
+++ b/net/mac80211/eht.c
@@ -71,6 +71,6 @@ ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
 
 	eht_cap->has_eht = true;
 
-	sta->deflink.cur_max_bandwidth = ieee80211_sta_cap_rx_bw(sta);
-	sta->sta.deflink.bandwidth = ieee80211_sta_cur_vht_bw(sta);
+	sta->deflink.cur_max_bandwidth = ieee80211_sta_cap_rx_bw(sta, 0);
+	sta->sta.deflink.bandwidth = ieee80211_sta_cur_vht_bw(sta, 0);
 }
diff --git a/net/mac80211/he.c b/net/mac80211/he.c
index 1a61f7552edd..20448dda8c4d 100644
--- a/net/mac80211/he.c
+++ b/net/mac80211/he.c
@@ -3,7 +3,7 @@
  * HE handling
  *
  * Copyright(c) 2017 Intel Deutschland GmbH
- * Copyright(c) 2019 - 2020 Intel Corporation
+ * Copyright(c) 2019 - 2022 Intel Corporation
  */
 
 #include "ieee80211_i.h"
@@ -153,8 +153,8 @@ ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
 
 	he_cap->has_he = true;
 
-	sta->deflink.cur_max_bandwidth = ieee80211_sta_cap_rx_bw(sta);
-	sta->sta.deflink.bandwidth = ieee80211_sta_cur_vht_bw(sta);
+	sta->deflink.cur_max_bandwidth = ieee80211_sta_cap_rx_bw(sta, 0);
+	sta->sta.deflink.bandwidth = ieee80211_sta_cur_vht_bw(sta, 0);
 
 	if (sband->band == NL80211_BAND_6GHZ && he_6ghz_capa)
 		ieee80211_update_from_he_6ghz_capa(he_6ghz_capa, sta);
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 3b68e9f4345b..2ca75f2d3023 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -301,8 +301,8 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	radar_required = err;
 
 	mutex_lock(&local->mtx);
-	if (ieee80211_vif_use_channel(sdata, &chandef,
-				      ifibss->fixed_channel ?
+	if (ieee80211_link_use_channel(sdata->link[0], &chandef,
+				       ifibss->fixed_channel ?
 					IEEE80211_CHANCTX_SHARED :
 					IEEE80211_CHANCTX_EXCLUSIVE)) {
 		sdata_info(sdata, "Failed to join IBSS, no channel context\n");
@@ -371,7 +371,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 		RCU_INIT_POINTER(ifibss->presp, NULL);
 		kfree_rcu(presp, rcu_head);
 		mutex_lock(&local->mtx);
-		ieee80211_vif_release_channel(sdata);
+		ieee80211_link_release_channel(sdata->link[0]);
 		mutex_unlock(&local->mtx);
 		sdata_info(sdata, "Failed to join IBSS, driver failure: %d\n",
 			   err);
@@ -725,7 +725,7 @@ static void ieee80211_ibss_disconnect(struct ieee80211_sub_if_data *sdata)
 						BSS_CHANGED_IBSS);
 	drv_leave_ibss(local, sdata);
 	mutex_lock(&local->mtx);
-	ieee80211_vif_release_channel(sdata);
+	ieee80211_link_release_channel(sdata->link[0]);
 	mutex_unlock(&local->mtx);
 }
 
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 397b111f006d..92ed1e3c2980 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -787,8 +787,8 @@ struct ieee80211_chanctx {
 	struct list_head list;
 	struct rcu_head rcu_head;
 
-	struct list_head assigned_vifs;
-	struct list_head reserved_vifs;
+	struct list_head assigned_links;
+	struct list_head reserved_links;
 
 	enum ieee80211_chanctx_replace_state replace_state;
 	struct ieee80211_chanctx *replace_ctx;
@@ -909,6 +909,12 @@ struct ieee80211_link_data_ap {
 };
 
 struct ieee80211_link_data {
+	struct ieee80211_sub_if_data *sdata;
+	unsigned int link_id;
+
+	struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
+	struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
+
 	/* multicast keys only */
 	struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
 					NUM_DEFAULT_MGMT_KEYS +
@@ -989,9 +995,6 @@ struct ieee80211_sub_if_data {
 	struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
 	struct mac80211_qos_map __rcu *qos_map;
 
-	struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
-	struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
-
 	/* used to reconfigure hardware SM PS */
 	struct work_struct recalc_smps;
 
@@ -2119,8 +2122,10 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_supported_band *sband,
 				    const struct ieee80211_vht_cap *vht_cap_ie,
 				    struct sta_info *sta);
-enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
-enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
+enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta,
+							unsigned int link_id);
+enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta,
+							 unsigned int link_id);
 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
 enum ieee80211_sta_rx_bandwidth
 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
@@ -2470,26 +2475,26 @@ bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
 
 int __must_check
-ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
-			  const struct cfg80211_chan_def *chandef,
-			  enum ieee80211_chanctx_mode mode);
+ieee80211_link_use_channel(struct ieee80211_link_data *link,
+			   const struct cfg80211_chan_def *chandef,
+			   enum ieee80211_chanctx_mode mode);
 int __must_check
-ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
-			      const struct cfg80211_chan_def *chandef,
-			      enum ieee80211_chanctx_mode mode,
-			      bool radar_required);
+ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
+			       const struct cfg80211_chan_def *chandef,
+			       enum ieee80211_chanctx_mode mode,
+			       bool radar_required);
 int __must_check
-ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
-int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
+ieee80211_link_use_reserved_context(struct ieee80211_link_data *link);
+int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link);
 
 int __must_check
-ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
-			       const struct cfg80211_chan_def *chandef,
-			       u32 *changed);
-void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
-void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
-void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
-					 bool clear);
+ieee80211_link_change_bandwidth(struct ieee80211_link_data *link,
+				const struct cfg80211_chan_def *chandef,
+				u32 *changed);
+void ieee80211_link_release_channel(struct ieee80211_link_data *link);
+void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link);
+void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
+					  bool clear);
 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
 			       struct ieee80211_chanctx *ctx);
 
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 04ee525394e9..1764068a18d1 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -471,7 +471,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do
 		chandef = sdata->vif.bss_conf.chandef;
 		WARN_ON(local->suspended);
 		mutex_lock(&local->mtx);
-		ieee80211_vif_release_channel(sdata);
+		ieee80211_link_release_channel(sdata->link[0]);
 		mutex_unlock(&local->mtx);
 		cfg80211_cac_event(sdata->dev, &chandef,
 				   NL80211_RADAR_CAC_ABORTED,
@@ -1027,6 +1027,7 @@ static void ieee80211_sdata_init(struct ieee80211_local *local,
 	 */
 	sdata->vif.link_conf[0] = &sdata->vif.bss_conf;
 	sdata->link[0] = &sdata->deflink;
+	sdata->deflink.sdata = sdata;
 }
 
 int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
@@ -1077,8 +1078,8 @@ int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
 	mutex_unlock(&local->iflist_mtx);
 
 	mutex_lock(&local->mtx);
-	ret = ieee80211_vif_use_channel(sdata, &local->monitor_chandef,
-					IEEE80211_CHANCTX_EXCLUSIVE);
+	ret = ieee80211_link_use_channel(sdata->link[0], &local->monitor_chandef,
+					 IEEE80211_CHANCTX_EXCLUSIVE);
 	mutex_unlock(&local->mtx);
 	if (ret) {
 		mutex_lock(&local->iflist_mtx);
@@ -1122,7 +1123,7 @@ void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
 	synchronize_net();
 
 	mutex_lock(&local->mtx);
-	ieee80211_vif_release_channel(sdata);
+	ieee80211_link_release_channel(sdata->link[0]);
 	mutex_unlock(&local->mtx);
 
 	drv_remove_interface(local, sdata);
@@ -1228,7 +1229,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 	case NL80211_IFTYPE_AP_VLAN:
 		/* no need to tell driver, but set carrier and chanctx */
 		if (sdata->bss->active) {
-			ieee80211_vif_vlan_copy_chanctx(sdata);
+			ieee80211_link_vlan_copy_chanctx(sdata->link[0]);
 			netif_carrier_on(dev);
 			ieee80211_set_vif_encap_ops(sdata);
 		} else {
@@ -1681,8 +1682,8 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 		  ieee80211_csa_finalize_work);
 	INIT_WORK(&sdata->deflink.color_change_finalize_work,
 		  ieee80211_color_change_finalize_work);
-	INIT_LIST_HEAD(&sdata->assigned_chanctx_list);
-	INIT_LIST_HEAD(&sdata->reserved_chanctx_list);
+	INIT_LIST_HEAD(&sdata->deflink.assigned_chanctx_list);
+	INIT_LIST_HEAD(&sdata->deflink.reserved_chanctx_list);
 
 	switch (type) {
 	case NL80211_IFTYPE_P2P_GO:
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 42ba7424589e..a6cb1db50f1d 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2008, 2009 open80211s Ltd.
- * Copyright (C) 2019, 2021 Intel Corporation
+ * Copyright (C) 2019, 2021-2022 Intel Corporation
  * Author:     Luis Carlos Cobo <luisca@cozybit.com>
  */
 #include <linux/gfp.h>
@@ -464,7 +464,7 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata,
 	if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
 		rate_control_rate_init(sta);
 	else
-		rate_control_rate_update(local, sband, sta, changed);
+		rate_control_rate_update(local, sband, sta, 0, changed);
 out:
 	spin_unlock_bh(&sta->mesh->plink_lock);
 }
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index e172bdfe9b0a..ca9e0d83e2a4 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -479,7 +479,7 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata,
 		return -EINVAL;
 	}
 
-	ret = ieee80211_vif_change_bandwidth(sdata, &chandef, changed);
+	ret = ieee80211_link_change_bandwidth(&sdata->deflink, &chandef, changed);
 
 	if (ret) {
 		sdata_info(sdata,
@@ -1248,7 +1248,7 @@ static void ieee80211_chswitch_work(struct work_struct *work)
 		if (sdata->deflink.reserved_ready)
 			goto out;
 
-		ret = ieee80211_vif_use_reserved_context(sdata);
+		ret = ieee80211_link_use_reserved_context(&sdata->deflink);
 		if (ret) {
 			sdata_info(sdata,
 				   "failed to use reserved channel context, disconnecting (err=%d)\n",
@@ -1354,7 +1354,7 @@ ieee80211_sta_abort_chanswitch(struct ieee80211_sub_if_data *sdata)
 	mutex_lock(&local->mtx);
 
 	mutex_lock(&local->chanctx_mtx);
-	ieee80211_vif_unreserve_chanctx(sdata);
+	ieee80211_link_unreserve_chanctx(&sdata->deflink);
 	mutex_unlock(&local->chanctx_mtx);
 
 	if (sdata->deflink.csa_block_tx)
@@ -1496,8 +1496,8 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 		goto drop_connection;
 	}
 
-	res = ieee80211_vif_reserve_chanctx(sdata, &csa_ie.chandef,
-					    chanctx->mode, false);
+	res = ieee80211_link_reserve_chanctx(&sdata->deflink, &csa_ie.chandef,
+					     chanctx->mode, false);
 	if (res) {
 		sdata_info(sdata,
 			   "failed to reserve channel context for channel switch, disconnecting (err=%d)\n",
@@ -1942,7 +1942,7 @@ void ieee80211_dfs_cac_timer_work(struct work_struct *work)
 
 	mutex_lock(&sdata->local->mtx);
 	if (sdata->wdev.cac_started) {
-		ieee80211_vif_release_channel(sdata);
+		ieee80211_link_release_channel(&sdata->deflink);
 		cfg80211_cac_event(sdata->dev, &chandef,
 				   NL80211_RADAR_CAC_FINISHED,
 				   GFP_KERNEL);
@@ -2483,7 +2483,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	ifmgd->flags = 0;
 	mutex_lock(&local->mtx);
-	ieee80211_vif_release_channel(sdata);
+	ieee80211_link_release_channel(&sdata->deflink);
 
 	sdata->vif.bss_conf.csa_active = false;
 	sdata->deflink.u.mgd.csa_waiting_bcn = false;
@@ -2923,7 +2923,7 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata,
 		ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_BSSID);
 		sdata->u.mgd.flags = 0;
 		mutex_lock(&sdata->local->mtx);
-		ieee80211_vif_release_channel(sdata);
+		ieee80211_link_release_channel(&sdata->deflink);
 		mutex_unlock(&sdata->local->mtx);
 	}
 
@@ -2954,7 +2954,7 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata,
 		sdata->vif.bss_conf.mu_mimo_owner = false;
 
 		mutex_lock(&sdata->local->mtx);
-		ieee80211_vif_release_channel(sdata);
+		ieee80211_link_release_channel(&sdata->deflink);
 		mutex_unlock(&sdata->local->mtx);
 
 		if (abandon)
@@ -5497,8 +5497,8 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
 	 * on incompatible channels, e.g. 80+80 and 160 sharing the
 	 * same control channel) try to use a smaller bandwidth.
 	 */
-	ret = ieee80211_vif_use_channel(sdata, &chandef,
-					IEEE80211_CHANCTX_SHARED);
+	ret = ieee80211_link_use_channel(&sdata->deflink, &chandef,
+					 IEEE80211_CHANCTX_SHARED);
 
 	/* don't downgrade for 5 and 10 MHz channels, though. */
 	if (chandef.width == NL80211_CHAN_WIDTH_5 ||
@@ -5507,8 +5507,8 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
 
 	while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) {
 		ifmgd->flags |= ieee80211_chandef_downgrade(&chandef);
-		ret = ieee80211_vif_use_channel(sdata, &chandef,
-						IEEE80211_CHANCTX_SHARED);
+		ret = ieee80211_link_use_channel(&sdata->deflink, &chandef,
+						 IEEE80211_CHANCTX_SHARED);
 	}
  out:
 	mutex_unlock(&local->mtx);
@@ -5868,7 +5868,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 	ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_BSSID);
 	ifmgd->auth_data = NULL;
 	mutex_lock(&sdata->local->mtx);
-	ieee80211_vif_release_channel(sdata);
+	ieee80211_link_release_channel(&sdata->deflink);
 	mutex_unlock(&sdata->local->mtx);
 	kfree(auth_data);
 	return err;
diff --git a/net/mac80211/ocb.c b/net/mac80211/ocb.c
index ab2658ad73ce..468c741a9aeb 100644
--- a/net/mac80211/ocb.c
+++ b/net/mac80211/ocb.c
@@ -186,8 +186,8 @@ int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
 	sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
 
 	mutex_lock(&sdata->local->mtx);
-	err = ieee80211_vif_use_channel(sdata, &setup->chandef,
-					IEEE80211_CHANCTX_SHARED);
+	err = ieee80211_link_use_channel(sdata->link[0], &setup->chandef,
+					 IEEE80211_CHANCTX_SHARED);
 	mutex_unlock(&sdata->local->mtx);
 	if (err)
 		return err;
@@ -229,7 +229,7 @@ int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata)
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_OCB);
 
 	mutex_lock(&sdata->local->mtx);
-	ieee80211_vif_release_channel(sdata);
+	ieee80211_link_release_channel(sdata->link[0]);
 	mutex_unlock(&sdata->local->mtx);
 
 	skb_queue_purge(&sdata->skb_queue);
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index f22381127948..b268088585eb 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -90,14 +90,17 @@ void rate_control_tx_status(struct ieee80211_local *local,
 }
 
 void rate_control_rate_update(struct ieee80211_local *local,
-				    struct ieee80211_supported_band *sband,
-				    struct sta_info *sta, u32 changed)
+			      struct ieee80211_supported_band *sband,
+			      struct sta_info *sta, unsigned int link_id,
+			      u32 changed)
 {
 	struct rate_control_ref *ref = local->rate_ctrl;
 	struct ieee80211_sta *ista = &sta->sta;
 	void *priv_sta = sta->rate_ctrl_priv;
 	struct ieee80211_chanctx_conf *chanctx_conf;
 
+	WARN_ON(link_id != 0);
+
 	if (ref && ref->ops->rate_update) {
 		rcu_read_lock();
 
@@ -113,6 +116,7 @@ void rate_control_rate_update(struct ieee80211_local *local,
 		spin_unlock_bh(&sta->rate_ctrl_lock);
 		rcu_read_unlock();
 	}
+
 	drv_sta_rc_update(local, sta->sdata, &sta->sta, changed);
 }
 
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index 79b44d3db171..fbc8bdb54c43 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -3,6 +3,7 @@
  * Copyright 2002-2005, Instant802 Networks, Inc.
  * Copyright 2005, Devicescape Software, Inc.
  * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
+ * Copyright (C) 2022 Intel Corporation
  */
 
 #ifndef IEEE80211_RATE_H
@@ -31,8 +32,10 @@ void rate_control_tx_status(struct ieee80211_local *local,
 
 void rate_control_rate_init(struct sta_info *sta);
 void rate_control_rate_update(struct ieee80211_local *local,
-				    struct ieee80211_supported_band *sband,
-				    struct sta_info *sta, u32 changed);
+			      struct ieee80211_supported_band *sband,
+			      struct sta_info *sta,
+			      unsigned int link_id,
+			      u32 changed);
 
 static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
 					   struct sta_info *sta, gfp_t gfp)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 21e7424f261a..1774d0f9feaa 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3369,7 +3369,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 
 			sband = rx->local->hw.wiphy->bands[status->band];
 
-			rate_control_rate_update(local, sband, rx->sta,
+			rate_control_rate_update(local, sband, rx->sta, 0,
 						 IEEE80211_RC_SMPS_CHANGED);
 			cfg80211_sta_opmode_change_notify(sdata->dev,
 							  rx->sta->addr,
@@ -3391,11 +3391,11 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 			if (chanwidth == IEEE80211_HT_CHANWIDTH_20MHZ)
 				max_bw = IEEE80211_STA_RX_BW_20;
 			else
-				max_bw = ieee80211_sta_cap_rx_bw(rx->sta);
+				max_bw = ieee80211_sta_cap_rx_bw(rx->sta, 0);
 
 			/* set cur_max_bandwidth and recalc sta bw */
 			rx->sta->deflink.cur_max_bandwidth = max_bw;
-			new_bw = ieee80211_sta_cur_vht_bw(rx->sta);
+			new_bw = ieee80211_sta_cur_vht_bw(rx->sta, 0);
 
 			if (rx->sta->sta.deflink.bandwidth == new_bw)
 				goto handled;
@@ -3406,7 +3406,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 				ieee80211_sta_rx_bw_to_chan_width(rx->sta);
 			sta_opmode.changed = STA_OPMODE_MAX_BW_CHANGED;
 
-			rate_control_rate_update(local, sband, rx->sta,
+			rate_control_rate_update(local, sband, rx->sta, 0,
 						 IEEE80211_RC_BW_CHANGED);
 			cfg80211_sta_opmode_change_notify(sdata->dev,
 							  rx->sta->addr,
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index 11a3b950b490..86a13ef31ef1 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -1268,10 +1268,10 @@ static void iee80211_tdls_recalc_chanctx(struct ieee80211_sub_if_data *sdata,
 			enum ieee80211_sta_rx_bandwidth bw;
 
 			bw = ieee80211_chan_width_to_rx_bw(conf->def.width);
-			bw = min(bw, ieee80211_sta_cap_rx_bw(sta));
+			bw = min(bw, ieee80211_sta_cap_rx_bw(sta, 0));
 			if (bw != sta->sta.deflink.bandwidth) {
 				sta->sta.deflink.bandwidth = bw;
-				rate_control_rate_update(local, sband, sta,
+				rate_control_rate_update(local, sband, sta, 0,
 							 IEEE80211_RC_BW_CHANGED);
 				/*
 				 * if a TDLS peer BW was updated, we need to
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 7284f0bf8a99..5c941fe4d70a 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -1625,6 +1625,7 @@ struct trace_chandef_entry {
 
 struct trace_switch_entry {
 	struct trace_vif_entry vif;
+	unsigned int link_id;
 	struct trace_chandef_entry old_chandef;
 	struct trace_chandef_entry new_chandef;
 } __packed;
@@ -1664,6 +1665,7 @@ TRACE_EVENT(drv_switch_vif_chanctx,
 
 				SWITCH_ENTRY_ASSIGN(vif.vif_type, vif->type);
 				SWITCH_ENTRY_ASSIGN(vif.p2p, vif->p2p);
+				SWITCH_ENTRY_ASSIGN(link_id, link_id);
 				strncpy(local_vifs[i].vif.vif_name,
 					sdata->name,
 					sizeof(local_vifs[i].vif.vif_name));
@@ -1704,40 +1706,45 @@ TRACE_EVENT(drv_switch_vif_chanctx,
 DECLARE_EVENT_CLASS(local_sdata_chanctx,
 	TP_PROTO(struct ieee80211_local *local,
 		 struct ieee80211_sub_if_data *sdata,
+		 unsigned int link_id,
 		 struct ieee80211_chanctx *ctx),
 
-	TP_ARGS(local, sdata, ctx),
+	TP_ARGS(local, sdata, link_id, ctx),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
 		VIF_ENTRY
 		CHANCTX_ENTRY
+		__field(unsigned int, link_id)
 	),
 
 	TP_fast_assign(
 		LOCAL_ASSIGN;
 		VIF_ASSIGN;
 		CHANCTX_ASSIGN;
+		__entry->link_id = link_id;
 	),
 
 	TP_printk(
-		LOCAL_PR_FMT VIF_PR_FMT CHANCTX_PR_FMT,
-		LOCAL_PR_ARG, VIF_PR_ARG, CHANCTX_PR_ARG
+		LOCAL_PR_FMT VIF_PR_FMT " link_id:%d" CHANCTX_PR_FMT,
+		LOCAL_PR_ARG, VIF_PR_ARG, __entry->link_id, CHANCTX_PR_ARG
 	)
 );
 
 DEFINE_EVENT(local_sdata_chanctx, drv_assign_vif_chanctx,
 	TP_PROTO(struct ieee80211_local *local,
 		 struct ieee80211_sub_if_data *sdata,
+		 unsigned int link_id,
 		 struct ieee80211_chanctx *ctx),
-	TP_ARGS(local, sdata, ctx)
+	TP_ARGS(local, sdata, link_id, ctx)
 );
 
 DEFINE_EVENT(local_sdata_chanctx, drv_unassign_vif_chanctx,
 	TP_PROTO(struct ieee80211_local *local,
 		 struct ieee80211_sub_if_data *sdata,
+		 unsigned int link_id,
 		 struct ieee80211_chanctx *ctx),
-	TP_ARGS(local, sdata, ctx)
+	TP_ARGS(local, sdata, link_id, ctx)
 );
 
 TRACE_EVENT(drv_start_ap,
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 2a279dc3e457..4ec96170a679 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2255,7 +2255,8 @@ static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local)
 }
 
 static void ieee80211_assign_chanctx(struct ieee80211_local *local,
-				     struct ieee80211_sub_if_data *sdata)
+				     struct ieee80211_sub_if_data *sdata,
+				     unsigned int link_id)
 {
 	struct ieee80211_chanctx_conf *conf;
 	struct ieee80211_chanctx *ctx;
@@ -2264,11 +2265,11 @@ static void ieee80211_assign_chanctx(struct ieee80211_local *local,
 		return;
 
 	mutex_lock(&local->chanctx_mtx);
-	conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
+	conf = rcu_dereference_protected(sdata->vif.link_conf[link_id]->chanctx_conf,
 					 lockdep_is_held(&local->chanctx_mtx));
 	if (conf) {
 		ctx = container_of(conf, struct ieee80211_chanctx, conf);
-		drv_assign_vif_chanctx(local, sdata, ctx);
+		drv_assign_vif_chanctx(local, sdata, link_id, ctx);
 	}
 	mutex_unlock(&local->chanctx_mtx);
 }
@@ -2474,7 +2475,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 		sdata = wiphy_dereference(local->hw.wiphy,
 					  local->monitor_sdata);
 		if (sdata && ieee80211_sdata_running(sdata))
-			ieee80211_assign_chanctx(local, sdata);
+			ieee80211_assign_chanctx(local, sdata, 0);
 	}
 
 	/* reconfigure hardware */
@@ -2484,12 +2485,16 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 
 	/* Finally also reconfigure all the BSS information */
 	list_for_each_entry(sdata, &local->interfaces, list) {
+		unsigned int link;
 		u32 changed;
 
 		if (!ieee80211_sdata_running(sdata))
 			continue;
 
-		ieee80211_assign_chanctx(local, sdata);
+		for (link = 0; link < ARRAY_SIZE(sdata->vif.link_conf); link++) {
+			if (sdata->vif.link_conf[link])
+				ieee80211_assign_chanctx(local, sdata, link);
+		}
 
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_AP_VLAN:
@@ -3975,7 +3980,7 @@ void ieee80211_dfs_cac_cancel(struct ieee80211_local *local)
 
 		if (sdata->wdev.cac_started) {
 			chandef = sdata->vif.bss_conf.chandef;
-			ieee80211_vif_release_channel(sdata);
+			ieee80211_link_release_channel(sdata->link[0]);
 			cfg80211_cac_event(sdata->dev,
 					   &chandef,
 					   NL80211_RADAR_CAC_ABORTED,
@@ -4401,7 +4406,7 @@ void ieee80211_recalc_dtim(struct ieee80211_local *local,
 static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local,
 					 struct ieee80211_chanctx *ctx)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_link_data *link;
 	u8 radar_detect = 0;
 
 	lockdep_assert_held(&local->chanctx_mtx);
@@ -4409,20 +4414,26 @@ static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local,
 	if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED))
 		return 0;
 
-	list_for_each_entry(sdata, &ctx->reserved_vifs, reserved_chanctx_list)
-		if (sdata->deflink.reserved_radar_required)
-			radar_detect |= BIT(sdata->deflink.reserved_chandef.width);
+	list_for_each_entry(link, &ctx->reserved_links, reserved_chanctx_list)
+		if (link->reserved_radar_required)
+			radar_detect |= BIT(link->reserved_chandef.width);
 
 	/*
 	 * An in-place reservation context should not have any assigned vifs
 	 * until it replaces the other context.
 	 */
 	WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER &&
-		!list_empty(&ctx->assigned_vifs));
+		!list_empty(&ctx->assigned_links));
+
+	list_for_each_entry(link, &ctx->assigned_links, assigned_chanctx_list) {
+		struct ieee80211_sub_if_data *sdata = link->sdata;
 
-	list_for_each_entry(sdata, &ctx->assigned_vifs, assigned_chanctx_list)
-		if (sdata->deflink.radar_required)
-			radar_detect |= BIT(sdata->vif.bss_conf.chandef.width);
+		if (!link->radar_required)
+			continue;
+
+		radar_detect |=
+			BIT(sdata->vif.link_conf[link->link_id]->chandef.width);
+	}
 
 	return radar_detect;
 }
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index 7daca8352deb..27d260be9123 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -313,7 +313,7 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
 			sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
 	}
 
-	sta->sta.deflink.bandwidth = ieee80211_sta_cur_vht_bw(sta);
+	sta->sta.deflink.bandwidth = ieee80211_sta_cur_vht_bw(sta, 0);
 
 	switch (vht_cap->cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK) {
 	case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
@@ -330,19 +330,21 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
 }
 
 /* FIXME: move this to some better location - parses HE/EHT now */
-enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta)
+enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta,
+							unsigned int link_id)
 {
-	struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.deflink.vht_cap;
-	struct ieee80211_sta_he_cap *he_cap = &sta->sta.deflink.he_cap;
-	struct ieee80211_sta_eht_cap *eht_cap = &sta->sta.deflink.eht_cap;
+	struct ieee80211_bss_conf *link_conf = sta->sdata->vif.link_conf[link_id];
+	struct ieee80211_link_sta *link_sta = sta->sta.link[link_id];
+	struct ieee80211_sta_vht_cap *vht_cap = &link_sta->vht_cap;
+	struct ieee80211_sta_he_cap *he_cap = &link_sta->he_cap;
+	struct ieee80211_sta_eht_cap *eht_cap = &link_sta->eht_cap;
 	u32 cap_width;
 
 	if (he_cap->has_he) {
 		u8 info;
 
 		if (eht_cap->has_eht &&
-		    sta->sdata->vif.bss_conf.chandef.chan->band ==
-		    NL80211_BAND_6GHZ) {
+		    link_conf->chandef.chan->band == NL80211_BAND_6GHZ) {
 			info = eht_cap->eht_cap_elem.phy_cap_info[0];
 
 			if (info & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ)
@@ -351,8 +353,7 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta)
 
 		info = he_cap->he_cap_elem.phy_cap_info[0];
 
-		if (sta->sdata->vif.bss_conf.chandef.chan->band ==
-				NL80211_BAND_2GHZ) {
+		if (link_conf->chandef.chan->band == NL80211_BAND_2GHZ) {
 			if (info & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)
 				return IEEE80211_STA_RX_BW_40;
 			else
@@ -369,7 +370,7 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta)
 	}
 
 	if (!vht_cap->vht_supported)
-		return sta->sta.deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
+		return link_sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
 				IEEE80211_STA_RX_BW_40 :
 				IEEE80211_STA_RX_BW_20;
 
@@ -466,14 +467,15 @@ ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width)
 }
 
 /* FIXME: rename/move - this deals with everything not just VHT */
-enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta)
+enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta,
+							 unsigned int link_id)
 {
-	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	struct ieee80211_bss_conf *link_conf = sta->sdata->vif.link_conf[link_id];
+	enum nl80211_chan_width bss_width = link_conf->chandef.width;
 	enum ieee80211_sta_rx_bandwidth bw;
-	enum nl80211_chan_width bss_width = sdata->vif.bss_conf.chandef.width;
 
-	bw = ieee80211_sta_cap_rx_bw(sta);
-	bw = min(bw, sta->deflink.cur_max_bandwidth);
+	bw = ieee80211_sta_cap_rx_bw(sta, link_id);
+	bw = min(bw, sta->link[link_id]->cur_max_bandwidth);
 
 	/* Don't consider AP's bandwidth for TDLS peers, section 11.23.1 of
 	 * IEEE80211-2016 specification makes higher bandwidth operation
@@ -629,7 +631,7 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 		break;
 	}
 
-	new_bw = ieee80211_sta_cur_vht_bw(sta);
+	new_bw = ieee80211_sta_cur_vht_bw(sta, 0);
 	if (new_bw != sta->sta.deflink.bandwidth) {
 		sta->sta.deflink.bandwidth = new_bw;
 		sta_opmode.bw = ieee80211_sta_rx_bw_to_chan_width(sta);
@@ -692,7 +694,7 @@ void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 
 	if (changed > 0) {
 		ieee80211_recalc_min_chandef(sdata);
-		rate_control_rate_update(local, sband, sta, changed);
+		rate_control_rate_update(local, sband, sta, 0, changed);
 	}
 }
 
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 05/15] mac80211: remove sta_info_tx_streams()
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (3 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 04/15] mac80211: make channel context code MLO-aware Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 06/15] mac80211: refactor some sta_info link handling Johannes Berg
                   ` (9 subsequent siblings)
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

The function is unused since commit 52b4810bed83 ("mac80211: Remove
support for changing AP SMPS mode") so we can just remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/sta_info.c | 35 -----------------------------------
 net/mac80211/sta_info.h |  1 -
 2 files changed, 36 deletions(-)

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 9a70d846d0dd..6f6d83def8b8 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -2093,41 +2093,6 @@ int sta_info_move_state(struct sta_info *sta,
 	return 0;
 }
 
-u8 sta_info_tx_streams(struct sta_info *sta)
-{
-	struct ieee80211_sta_ht_cap *ht_cap = &sta->sta.deflink.ht_cap;
-	u8 rx_streams;
-
-	if (!sta->sta.deflink.ht_cap.ht_supported)
-		return 1;
-
-	if (sta->sta.deflink.vht_cap.vht_supported) {
-		int i;
-		u16 tx_mcs_map =
-			le16_to_cpu(sta->sta.deflink.vht_cap.vht_mcs.tx_mcs_map);
-
-		for (i = 7; i >= 0; i--)
-			if ((tx_mcs_map & (0x3 << (i * 2))) !=
-			    IEEE80211_VHT_MCS_NOT_SUPPORTED)
-				return i + 1;
-	}
-
-	if (ht_cap->mcs.rx_mask[3])
-		rx_streams = 4;
-	else if (ht_cap->mcs.rx_mask[2])
-		rx_streams = 3;
-	else if (ht_cap->mcs.rx_mask[1])
-		rx_streams = 2;
-	else
-		rx_streams = 1;
-
-	if (!(ht_cap->mcs.tx_params & IEEE80211_HT_MCS_TX_RX_DIFF))
-		return rx_streams;
-
-	return ((ht_cap->mcs.tx_params & IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK)
-			>> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT) + 1;
-}
-
 static struct ieee80211_sta_rx_stats *
 sta_get_last_rx_stats(struct sta_info *sta)
 {
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index aa6950aa49a9..134a7dad0ac4 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -891,7 +891,6 @@ u32 sta_get_expected_throughput(struct sta_info *sta);
 
 void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
 			  unsigned long exp_time);
-u8 sta_info_tx_streams(struct sta_info *sta);
 
 void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta);
 void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta);
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 06/15] mac80211: refactor some sta_info link handling
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (4 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 05/15] mac80211: remove sta_info_tx_streams() Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 07/15] mac80211: use IEEE80211_MLD_MAX_NUM_LINKS Johannes Berg
                   ` (8 subsequent siblings)
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

Refactor the code a bit to initialize a link belonging
to a station, and (later) free all allocated links.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/sta_info.c | 79 +++++++++++++++++++++++++++++------------
 1 file changed, 56 insertions(+), 23 deletions(-)

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 6f6d83def8b8..f20ce7bbcb39 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -245,6 +245,20 @@ struct sta_info *sta_info_get_by_idx(struct ieee80211_sub_if_data *sdata,
 	return NULL;
 }
 
+static void sta_info_free_links(struct sta_info *sta)
+{
+	unsigned int link_id;
+
+	for (link_id = 0; link_id < ARRAY_SIZE(sta->link); link_id++) {
+		if (!sta->link[link_id])
+			continue;
+		free_percpu(sta->link[link_id]->pcpu_rx_stats);
+
+		if (sta->link[link_id] != &sta->deflink)
+			kfree(sta->link[link_id]);
+	}
+}
+
 /**
  * sta_info_free - free STA
  *
@@ -287,7 +301,8 @@ void sta_info_free(struct ieee80211_local *local, struct sta_info *sta)
 #ifdef CONFIG_MAC80211_MESH
 	kfree(sta->mesh);
 #endif
-	free_percpu(sta->deflink.pcpu_rx_stats);
+
+	sta_info_free_links(sta);
 	kfree(sta);
 }
 
@@ -333,6 +348,40 @@ static int sta_prepare_rate_control(struct ieee80211_local *local,
 	return 0;
 }
 
+static int sta_info_init_link(struct sta_info *sta,
+			      unsigned int link_id,
+			      struct link_sta_info *link_info,
+			      struct ieee80211_link_sta *link_sta,
+			      gfp_t gfp)
+{
+	struct ieee80211_local *local = sta->local;
+	struct ieee80211_hw *hw = &local->hw;
+	int i;
+
+	link_info->sta = sta;
+	link_info->link_id = link_id;
+
+	if (ieee80211_hw_check(hw, USES_RSS)) {
+		link_info->pcpu_rx_stats =
+			alloc_percpu_gfp(struct ieee80211_sta_rx_stats, gfp);
+		if (!link_info->pcpu_rx_stats)
+			return -ENOMEM;
+	}
+
+	sta->link[link_id] = link_info;
+	sta->sta.link[link_id] = link_sta;
+
+	link_info->rx_stats.last_rx = jiffies;
+	u64_stats_init(&link_info->rx_stats.syncp);
+
+	ewma_signal_init(&link_info->rx_stats_avg.signal);
+	ewma_avg_signal_init(&link_info->status_stats.avg_ack_signal);
+	for (i = 0; i < ARRAY_SIZE(link_info->rx_stats_avg.chain_signal); i++)
+		ewma_signal_init(&link_info->rx_stats_avg.chain_signal[i]);
+
+	return 0;
+}
+
 struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 				const u8 *addr, gfp_t gfp)
 {
@@ -345,12 +394,11 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	if (!sta)
 		return NULL;
 
-	if (ieee80211_hw_check(hw, USES_RSS)) {
-		sta->deflink.pcpu_rx_stats =
-			alloc_percpu_gfp(struct ieee80211_sta_rx_stats, gfp);
-		if (!sta->deflink.pcpu_rx_stats)
-			goto free;
-	}
+	sta->local = local;
+	sta->sdata = sdata;
+
+	if (sta_info_init_link(sta, 0, &sta->deflink, &sta->sta.deflink, gfp))
+		return NULL;
 
 	spin_lock_init(&sta->lock);
 	spin_lock_init(&sta->ps_lock);
@@ -378,12 +426,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 
 	/* TODO link specific alloc and assignments for MLO Link STA */
 
-	/* For non MLO STA, link info can be accessed either via deflink
-	 * or link[0]
-	 */
-	sta->link[0] = &sta->deflink;
-	sta->sta.link[0] = &sta->sta.deflink;
-
 	/* Extended Key ID needs to install keys for keyid 0 and 1 Rx-only.
 	 * The Tx path starts to use a key as soon as the key slot ptk_idx
 	 * references to is not NULL. To not use the initial Rx-only key
@@ -393,11 +435,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	BUILD_BUG_ON(ARRAY_SIZE(sta->ptk) <= INVALID_PTK_KEYIDX);
 	sta->ptk_idx = INVALID_PTK_KEYIDX;
 
-	sta->local = local;
-	sta->sdata = sdata;
-	sta->deflink.rx_stats.last_rx = jiffies;
-
-	u64_stats_init(&sta->deflink.rx_stats.syncp);
 
 	ieee80211_init_frag_cache(&sta->frags);
 
@@ -407,10 +444,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	sta->reserved_tid = IEEE80211_TID_UNRESERVED;
 
 	sta->last_connected = ktime_get_seconds();
-	ewma_signal_init(&sta->deflink.rx_stats_avg.signal);
-	ewma_avg_signal_init(&sta->deflink.status_stats.avg_ack_signal);
-	for (i = 0; i < ARRAY_SIZE(sta->deflink.rx_stats_avg.chain_signal); i++)
-		ewma_signal_init(&sta->deflink.rx_stats_avg.chain_signal[i]);
 
 	if (local->ops->wake_tx_queue) {
 		void *txq_data;
@@ -532,7 +565,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	if (sta->sta.txq[0])
 		kfree(to_txq_info(sta->sta.txq[0]));
 free:
-	free_percpu(sta->deflink.pcpu_rx_stats);
+	sta_info_free_links(sta);
 #ifdef CONFIG_MAC80211_MESH
 	kfree(sta->mesh);
 #endif
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 07/15] mac80211: use IEEE80211_MLD_MAX_NUM_LINKS
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (5 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 06/15] mac80211: refactor some sta_info link handling Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 08/15] mac80211: validate some driver features for MLO Johannes Berg
                   ` (7 subsequent siblings)
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

Remove MAX_STA_LINKS and use IEEE80211_MLD_MAX_NUM_LINKS
instead to unify between the station and other data structures.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/mac80211.h  | 4 +---
 net/mac80211/sta_info.h | 2 +-
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 4b3d19d88954..66a18dc4462f 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2061,8 +2061,6 @@ struct ieee80211_sta_txpwr {
 	enum nl80211_tx_power_setting type;
 };
 
-#define MAX_STA_LINKS			15
-
 /**
  * struct ieee80211_link_sta - station Link specific info
  * All link specific info for a STA link for a non MLD STA(single)
@@ -2190,7 +2188,7 @@ struct ieee80211_sta {
 
 	bool multi_link_sta;
 	struct ieee80211_link_sta deflink;
-	struct ieee80211_link_sta *link[MAX_STA_LINKS];
+	struct ieee80211_link_sta *link[IEEE80211_MLD_MAX_NUM_LINKS];
 
 	/* must be last */
 	u8 drv_priv[] __aligned(sizeof(void *));
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 134a7dad0ac4..2ff3d5fd0cbf 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -710,7 +710,7 @@ struct sta_info {
 
 	bool multi_link_sta;
 	struct link_sta_info deflink;
-	struct link_sta_info *link[MAX_STA_LINKS];
+	struct link_sta_info *link[IEEE80211_MLD_MAX_NUM_LINKS];
 
 	/* keep last! */
 	struct ieee80211_sta sta;
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 08/15] mac80211: validate some driver features for MLO
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (6 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 07/15] mac80211: use IEEE80211_MLD_MAX_NUM_LINKS Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 09/15] mac80211: refactor some link setup code Johannes Berg
                   ` (6 subsequent siblings)
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

If MLO is enabled by the driver then validate a set of
capabilities that mac80211 will initially not support
in MLO. This might change if features are implemented.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/main.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 6165b90bf0e2..c5553d68d779 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -951,6 +951,48 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 		    (!local->ops->start_nan || !local->ops->stop_nan)))
 		return -EINVAL;
 
+	if (hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO) {
+		/*
+		 * For drivers capable of doing MLO, assume modern driver
+		 * or firmware facilities, so software doesn't have to do
+		 * as much, e.g. monitoring beacons would be hard if we
+		 * might not even know which link is active at which time.
+		 */
+		if (WARN_ON(!local->use_chanctx))
+			return -EINVAL;
+
+		if (WARN_ON(!local->ops->link_info_changed))
+			return -EINVAL;
+
+		if (WARN_ON(!ieee80211_hw_check(hw, HAS_RATE_CONTROL)))
+			return -EINVAL;
+
+		if (WARN_ON(!ieee80211_hw_check(hw, AMPDU_AGGREGATION)))
+			return -EINVAL;
+
+		if (WARN_ON(ieee80211_hw_check(hw, HOST_BROADCAST_PS_BUFFERING)))
+			return -EINVAL;
+
+		if (WARN_ON(ieee80211_hw_check(hw, SUPPORTS_PS) &&
+			    !ieee80211_hw_check(hw, SUPPORTS_DYNAMIC_PS)))
+			return -EINVAL;
+
+		if (WARN_ON(!ieee80211_hw_check(hw, MFP_CAPABLE)))
+			return -EINVAL;
+
+		if (WARN_ON(!ieee80211_hw_check(hw, CONNECTION_MONITOR)))
+			return -EINVAL;
+
+		if (WARN_ON(ieee80211_hw_check(hw, NEED_DTIM_BEFORE_ASSOC)))
+			return -EINVAL;
+
+		if (WARN_ON(ieee80211_hw_check(hw, TIMING_BEACON_ONLY)))
+			return -EINVAL;
+
+		if (WARN_ON(!ieee80211_hw_check(hw, AP_LINK_PS)))
+			return -EINVAL;
+	}
+
 #ifdef CONFIG_PM
 	if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume))
 		return -EINVAL;
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 09/15] mac80211: refactor some link setup code
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (7 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 08/15] mac80211: validate some driver features for MLO Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 10/15] mac80211: add link_id to vht.c code for MLO Johannes Berg
                   ` (5 subsequent siblings)
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

We don't need to setup lists and work structs every time
we switch the interface type, factor that out into a new
ieee80211_link_init() function and use it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/iface.c | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 1764068a18d1..fa684d76a169 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1012,6 +1012,27 @@ static void ieee80211_set_default_queues(struct ieee80211_sub_if_data *sdata)
 	sdata->vif.cab_queue = IEEE80211_INVAL_HW_QUEUE;
 }
 
+static void ieee80211_link_init(struct ieee80211_sub_if_data *sdata,
+				unsigned int link_id,
+				struct ieee80211_link_data *link,
+				struct ieee80211_bss_conf *link_conf)
+{
+	sdata->vif.link_conf[link_id] = link_conf;
+	sdata->link[link_id] = link;
+
+	link->sdata = sdata;
+	link->link_id = link_id;
+
+	INIT_WORK(&link->csa_finalize_work,
+		  ieee80211_csa_finalize_work);
+	INIT_WORK(&link->color_change_finalize_work,
+		  ieee80211_color_change_finalize_work);
+	INIT_LIST_HEAD(&link->assigned_chanctx_list);
+	INIT_LIST_HEAD(&link->reserved_chanctx_list);
+	INIT_DELAYED_WORK(&link->dfs_cac_timer_work,
+			  ieee80211_dfs_cac_timer_work);
+}
+
 static void ieee80211_sdata_init(struct ieee80211_local *local,
 				 struct ieee80211_sub_if_data *sdata)
 {
@@ -1025,9 +1046,7 @@ static void ieee80211_sdata_init(struct ieee80211_local *local,
 	 * Note that we never change this, so if link ID 0 isn't used in an
 	 * MLD connection, we get a separate allocation for it.
 	 */
-	sdata->vif.link_conf[0] = &sdata->vif.bss_conf;
-	sdata->link[0] = &sdata->deflink;
-	sdata->deflink.sdata = sdata;
+	ieee80211_link_init(sdata, 0, &sdata->deflink, &sdata->vif.bss_conf);
 }
 
 int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
@@ -1678,12 +1697,6 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 	skb_queue_head_init(&sdata->status_queue);
 	INIT_WORK(&sdata->work, ieee80211_iface_work);
 	INIT_WORK(&sdata->recalc_smps, ieee80211_recalc_smps_work);
-	INIT_WORK(&sdata->deflink.csa_finalize_work,
-		  ieee80211_csa_finalize_work);
-	INIT_WORK(&sdata->deflink.color_change_finalize_work,
-		  ieee80211_color_change_finalize_work);
-	INIT_LIST_HEAD(&sdata->deflink.assigned_chanctx_list);
-	INIT_LIST_HEAD(&sdata->deflink.reserved_chanctx_list);
 
 	switch (type) {
 	case NL80211_IFTYPE_P2P_GO:
@@ -2100,8 +2113,6 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
 	INIT_LIST_HEAD(&sdata->key_list);
 
-	INIT_DELAYED_WORK(&sdata->deflink.dfs_cac_timer_work,
-			  ieee80211_dfs_cac_timer_work);
 	INIT_DELAYED_WORK(&sdata->dec_tailroom_needed_wk,
 			  ieee80211_delayed_tailroom_dec);
 
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 10/15] mac80211: add link_id to vht.c code for MLO
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (8 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 09/15] mac80211: refactor some link setup code Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 11/15] mac80211: add link_id to eht.c " Johannes Berg
                   ` (4 subsequent siblings)
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

Update the code in vht.c and add the link_id parameter where
necessary.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 .../net/wireless/intel/iwlwifi/mvm/mac80211.c |   2 +-
 include/net/mac80211.h                        |   3 +-
 net/mac80211/cfg.c                            |   5 +-
 net/mac80211/ibss.c                           |   2 +-
 net/mac80211/ieee80211_i.h                    |  18 +--
 net/mac80211/iface.c                          |   6 +-
 net/mac80211/mesh_plink.c                     |   2 +-
 net/mac80211/mlme.c                           |   6 +-
 net/mac80211/rate.c                           |   2 +-
 net/mac80211/rx.c                             |   2 +-
 net/mac80211/tdls.c                           |   2 +-
 net/mac80211/vht.c                            | 122 +++++++++---------
 12 files changed, 92 insertions(+), 80 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 5d3cedc146be..2539dc5aaa3f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1776,7 +1776,7 @@ static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
 		 * the data received from firmware as if it came from the
 		 * action frame, so no conversion is needed.
 		 */
-		ieee80211_update_mu_groups(vif,
+		ieee80211_update_mu_groups(vif, 0,
 					   (u8 *)&notif->membership_status,
 					   (u8 *)&notif->user_position);
 	}
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 66a18dc4462f..a3621900fbe4 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -6548,6 +6548,7 @@ ieee80211_vif_type_p2p(struct ieee80211_vif *vif)
  * ieee80211_update_mu_groups - set the VHT MU-MIMO groud data
  *
  * @vif: the specified virtual interface
+ * @link_id: the link ID for MLO, otherwise 0
  * @membership: 64 bits array - a bit is set if station is member of the group
  * @position: 2 bits per group id indicating the position in the group
  *
@@ -6556,7 +6557,7 @@ ieee80211_vif_type_p2p(struct ieee80211_vif *vif)
  * matching GroupId management frame.
  * Calls to this function need to be serialized with RX path.
  */
-void ieee80211_update_mu_groups(struct ieee80211_vif *vif,
+void ieee80211_update_mu_groups(struct ieee80211_vif *vif, unsigned int link_id,
 				const u8 *membership, const u8 *position);
 
 void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif,
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index e76565cb6292..27eb281f53b6 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1767,7 +1767,7 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 	/* VHT can override some HT caps such as the A-MSDU max length */
 	if (params->vht_capa)
 		ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
-						    params->vht_capa, sta);
+						    params->vht_capa, sta, 0);
 
 	if (params->he_capa)
 		ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
@@ -1788,7 +1788,8 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 		/* returned value is only needed for rc update, but the
 		 * rc isn't initialized here yet, so ignore it
 		 */
-		__ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
+		__ieee80211_vht_handle_opmode(sdata, sta, 0,
+					      params->opmode_notif,
 					      sband->band);
 	}
 
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 2ca75f2d3023..87815a3624f3 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -1068,7 +1068,7 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata,
 						   &chandef);
 			memcpy(&cap_ie, elems->vht_cap_elem, sizeof(cap_ie));
 			ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
-							    &cap_ie, sta);
+							    &cap_ie, sta, 0);
 			if (memcmp(&cap, &sta->sta.deflink.vht_cap, sizeof(cap)))
 				rates_updated |= true;
 		}
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 92ed1e3c2980..5be96b0bbd96 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -2121,29 +2121,31 @@ void
 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_supported_band *sband,
 				    const struct ieee80211_vht_cap *vht_cap_ie,
-				    struct sta_info *sta);
+				    struct sta_info *sta, unsigned int link_id);
 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta,
 							unsigned int link_id);
 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta,
 							 unsigned int link_id);
-void ieee80211_sta_set_rx_nss(struct sta_info *sta);
+void ieee80211_sta_set_rx_nss(struct sta_info *sta, unsigned int link_id);
 enum ieee80211_sta_rx_bandwidth
 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
-enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
+enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta,
+						  unsigned int link_id);
 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
+				 unsigned int link_id,
 				 struct ieee80211_mgmt *mgmt);
 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
-                                  struct sta_info *sta, u8 opmode,
-				  enum nl80211_band band);
+				  struct sta_info *sta, unsigned int link_id,
+				  u8 opmode, enum nl80211_band band);
 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
-				 struct sta_info *sta, u8 opmode,
-				 enum nl80211_band band);
+				 struct sta_info *sta, unsigned int link_id,
+				 u8 opmode, enum nl80211_band band);
 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
 				      struct ieee80211_sta_vht_cap *vht_cap);
 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
 				     u16 vht_mask[NL80211_VHT_NSS_MAX]);
 enum nl80211_chan_width
-ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta);
+ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta, unsigned int link_id);
 
 /* HE */
 void
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index fa684d76a169..c5be60ee12d8 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1496,14 +1496,14 @@ static void ieee80211_iface_process_skb(struct ieee80211_local *local,
 			sta = sta_info_get_bss(sdata, mgmt->sa);
 
 			if (sta)
-				ieee80211_vht_handle_opmode(sdata, sta, opmode,
-							    band);
+				ieee80211_vht_handle_opmode(sdata, sta, 0,
+							    opmode, band);
 
 			mutex_unlock(&local->sta_mtx);
 			break;
 		}
 		case WLAN_VHT_ACTION_GROUPID_MGMT:
-			ieee80211_process_mu_groups(sdata, mgmt);
+			ieee80211_process_mu_groups(sdata, 0, mgmt);
 			break;
 		default:
 			WARN_ON(1);
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index a6cb1db50f1d..fb7e8a9600ca 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -442,7 +442,7 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata,
 		changed |= IEEE80211_RC_BW_CHANGED;
 
 	ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
-					    elems->vht_cap_elem, sta);
+					    elems->vht_cap_elem, sta, 0);
 
 	ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, elems->he_cap,
 					  elems->he_cap_len,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index ca9e0d83e2a4..643ef0ae786e 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3570,7 +3570,8 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 
 	if (elems->vht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
 		ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
-						    elems->vht_cap_elem, sta);
+						    elems->vht_cap_elem,
+						    sta, 0);
 
 	if (elems->he_operation && !(ifmgd->flags & IEEE80211_STA_DISABLE_HE) &&
 	    elems->he_cap) {
@@ -4377,7 +4378,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	}
 
 	if (sta && elems->opmode_notif)
-		ieee80211_vht_handle_opmode(sdata, sta, *elems->opmode_notif,
+		ieee80211_vht_handle_opmode(sdata, sta, 0,
+					    *elems->opmode_notif,
 					    rx_status->band);
 	mutex_unlock(&local->sta_mtx);
 
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index b268088585eb..402e898b75c3 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -37,7 +37,7 @@ void rate_control_rate_init(struct sta_info *sta)
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_chanctx_conf *chanctx_conf;
 
-	ieee80211_sta_set_rx_nss(sta);
+	ieee80211_sta_set_rx_nss(sta, 0);
 
 	if (!ref)
 		return;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 1774d0f9feaa..e6b16ebbdb48 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3403,7 +3403,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 			rx->sta->sta.deflink.bandwidth = new_bw;
 			sband = rx->local->hw.wiphy->bands[status->band];
 			sta_opmode.bw =
-				ieee80211_sta_rx_bw_to_chan_width(rx->sta);
+				ieee80211_sta_rx_bw_to_chan_width(rx->sta, 0);
 			sta_opmode.changed = STA_OPMODE_MAX_BW_CHANGED;
 
 			rate_control_rate_update(local, sband, rx->sta, 0,
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index 86a13ef31ef1..4fc120c64022 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -308,7 +308,7 @@ ieee80211_tdls_chandef_vht_upgrade(struct ieee80211_sub_if_data *sdata,
 	/* IEEE802.11ac-2013 Table E-4 */
 	u16 centers_80mhz[] = { 5210, 5290, 5530, 5610, 5690, 5775 };
 	struct cfg80211_chan_def uc = sta->tdls_chandef;
-	enum nl80211_chan_width max_width = ieee80211_sta_cap_chan_bw(sta);
+	enum nl80211_chan_width max_width = ieee80211_sta_cap_chan_bw(sta, 0);
 	int i;
 
 	/* only support upgrading non-narrow channels up to 80Mhz */
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index 27d260be9123..acfe1459535f 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -116,16 +116,16 @@ void
 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_supported_band *sband,
 				    const struct ieee80211_vht_cap *vht_cap_ie,
-				    struct sta_info *sta)
+				    struct sta_info *sta, unsigned int link_id)
 {
-	struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.deflink.vht_cap;
+	struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.link[link_id]->vht_cap;
 	struct ieee80211_sta_vht_cap own_cap;
 	u32 cap_info, i;
 	bool have_80mhz;
 
 	memset(vht_cap, 0, sizeof(*vht_cap));
 
-	if (!sta->sta.deflink.ht_cap.ht_supported)
+	if (!sta->sta.link[link_id]->ht_cap.ht_supported)
 		return;
 
 	if (!vht_cap_ie || !sband->vht_cap.vht_supported)
@@ -295,10 +295,10 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
 	switch (vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
 	case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
 	case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
-		sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
+		sta->link[link_id]->cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
 		break;
 	default:
-		sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_80;
+		sta->link[link_id]->cur_max_bandwidth = IEEE80211_STA_RX_BW_80;
 
 		if (!(vht_cap->vht_mcs.tx_highest &
 				cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE)))
@@ -310,10 +310,11 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
 		 * above) between 160 and 80+80 yet.
 		 */
 		if (cap_info & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK)
-			sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
+			sta->link[link_id]->cur_max_bandwidth =
+				IEEE80211_STA_RX_BW_160;
 	}
 
-	sta->sta.deflink.bandwidth = ieee80211_sta_cur_vht_bw(sta, 0);
+	sta->sta.link[link_id]->bandwidth = ieee80211_sta_cur_vht_bw(sta, link_id);
 
 	switch (vht_cap->cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK) {
 	case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
@@ -391,16 +392,17 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta,
 	return IEEE80211_STA_RX_BW_80;
 }
 
-enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta)
+enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta,
+						  unsigned int link_id)
 {
-	struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.deflink.vht_cap;
+	struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.link[link_id]->vht_cap;
 	u32 cap_width;
 
 	if (!vht_cap->vht_supported) {
-		if (!sta->sta.deflink.ht_cap.ht_supported)
+		if (!sta->sta.link[link_id]->ht_cap.ht_supported)
 			return NL80211_CHAN_WIDTH_20_NOHT;
 
-		return sta->sta.deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
+		return sta->sta.link[link_id]->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
 				NL80211_CHAN_WIDTH_40 : NL80211_CHAN_WIDTH_20;
 	}
 
@@ -415,15 +417,17 @@ enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta)
 }
 
 enum nl80211_chan_width
-ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta)
+ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta, unsigned int link_id)
 {
-	enum ieee80211_sta_rx_bandwidth cur_bw = sta->sta.deflink.bandwidth;
-	struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.deflink.vht_cap;
+	enum ieee80211_sta_rx_bandwidth cur_bw =
+		sta->sta.link[link_id]->bandwidth;
+	struct ieee80211_sta_vht_cap *vht_cap =
+		&sta->sta.link[link_id]->vht_cap;
 	u32 cap_width;
 
 	switch (cur_bw) {
 	case IEEE80211_STA_RX_BW_20:
-		if (!sta->sta.deflink.ht_cap.ht_supported)
+		if (!sta->sta.link[link_id]->ht_cap.ht_supported)
 			return NL80211_CHAN_WIDTH_20_NOHT;
 		else
 			return NL80211_CHAN_WIDTH_20;
@@ -497,18 +501,18 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta,
 	return bw;
 }
 
-void ieee80211_sta_set_rx_nss(struct sta_info *sta)
+void ieee80211_sta_set_rx_nss(struct sta_info *sta, unsigned int link_id)
 {
 	u8 ht_rx_nss = 0, vht_rx_nss = 0, he_rx_nss = 0, eht_rx_nss = 0, rx_nss;
 	bool support_160;
 
 	/* if we received a notification already don't overwrite it */
-	if (sta->sta.deflink.rx_nss)
+	if (sta->sta.link[link_id]->rx_nss)
 		return;
 
-	if (sta->sta.deflink.eht_cap.has_eht) {
+	if (sta->sta.link[link_id]->eht_cap.has_eht) {
 		int i;
-		const u8 *rx_nss_mcs = (void *)&sta->sta.deflink.eht_cap.eht_mcs_nss_supp;
+		const u8 *rx_nss_mcs = (void *)&sta->sta.link[link_id]->eht_cap.eht_mcs_nss_supp;
 
 		/* get the max nss for EHT over all possible bandwidths and mcs */
 		for (i = 0; i < sizeof(struct ieee80211_eht_mcs_nss_supp); i++)
@@ -517,10 +521,10 @@ void ieee80211_sta_set_rx_nss(struct sta_info *sta)
 						       IEEE80211_EHT_MCS_NSS_RX));
 	}
 
-	if (sta->sta.deflink.he_cap.has_he) {
+	if (sta->sta.link[link_id]->he_cap.has_he) {
 		int i;
 		u8 rx_mcs_80 = 0, rx_mcs_160 = 0;
-		const struct ieee80211_sta_he_cap *he_cap = &sta->sta.deflink.he_cap;
+		const struct ieee80211_sta_he_cap *he_cap = &sta->sta.link[link_id]->he_cap;
 		u16 mcs_160_map =
 			le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_160);
 		u16 mcs_80_map = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80);
@@ -551,23 +555,23 @@ void ieee80211_sta_set_rx_nss(struct sta_info *sta)
 			he_rx_nss = rx_mcs_80;
 	}
 
-	if (sta->sta.deflink.ht_cap.ht_supported) {
-		if (sta->sta.deflink.ht_cap.mcs.rx_mask[0])
+	if (sta->sta.link[link_id]->ht_cap.ht_supported) {
+		if (sta->sta.link[link_id]->ht_cap.mcs.rx_mask[0])
 			ht_rx_nss++;
-		if (sta->sta.deflink.ht_cap.mcs.rx_mask[1])
+		if (sta->sta.link[link_id]->ht_cap.mcs.rx_mask[1])
 			ht_rx_nss++;
-		if (sta->sta.deflink.ht_cap.mcs.rx_mask[2])
+		if (sta->sta.link[link_id]->ht_cap.mcs.rx_mask[2])
 			ht_rx_nss++;
-		if (sta->sta.deflink.ht_cap.mcs.rx_mask[3])
+		if (sta->sta.link[link_id]->ht_cap.mcs.rx_mask[3])
 			ht_rx_nss++;
 		/* FIXME: consider rx_highest? */
 	}
 
-	if (sta->sta.deflink.vht_cap.vht_supported) {
+	if (sta->sta.link[link_id]->vht_cap.vht_supported) {
 		int i;
 		u16 rx_mcs_map;
 
-		rx_mcs_map = le16_to_cpu(sta->sta.deflink.vht_cap.vht_mcs.rx_mcs_map);
+		rx_mcs_map = le16_to_cpu(sta->sta.link[link_id]->vht_cap.vht_mcs.rx_mcs_map);
 
 		for (i = 7; i >= 0; i--) {
 			u8 mcs = (rx_mcs_map >> (2 * i)) & 3;
@@ -583,12 +587,12 @@ void ieee80211_sta_set_rx_nss(struct sta_info *sta)
 	rx_nss = max(vht_rx_nss, ht_rx_nss);
 	rx_nss = max(he_rx_nss, rx_nss);
 	rx_nss = max(eht_rx_nss, rx_nss);
-	sta->sta.deflink.rx_nss = max_t(u8, 1, rx_nss);
+	sta->sta.link[link_id]->rx_nss = max_t(u8, 1, rx_nss);
 }
 
 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
-				  struct sta_info *sta, u8 opmode,
-				  enum nl80211_band band)
+				  struct sta_info *sta, unsigned int link_id,
+				  u8 opmode, enum nl80211_band band)
 {
 	enum ieee80211_sta_rx_bandwidth new_bw;
 	struct sta_opmode_info sta_opmode = {};
@@ -603,8 +607,8 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 	nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT;
 	nss += 1;
 
-	if (sta->sta.deflink.rx_nss != nss) {
-		sta->sta.deflink.rx_nss = nss;
+	if (sta->sta.link[link_id]->rx_nss != nss) {
+		sta->sta.link[link_id]->rx_nss = nss;
 		sta_opmode.rx_nss = nss;
 		changed |= IEEE80211_RC_NSS_CHANGED;
 		sta_opmode.changed |= STA_OPMODE_N_SS_CHANGED;
@@ -613,28 +617,28 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 	switch (opmode & IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK) {
 	case IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ:
 		/* ignore IEEE80211_OPMODE_NOTIF_BW_160_80P80 must not be set */
-		sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_20;
+		sta->link[link_id]->cur_max_bandwidth = IEEE80211_STA_RX_BW_20;
 		break;
 	case IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ:
 		/* ignore IEEE80211_OPMODE_NOTIF_BW_160_80P80 must not be set */
-		sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_40;
+		sta->link[link_id]->cur_max_bandwidth = IEEE80211_STA_RX_BW_40;
 		break;
 	case IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ:
 		if (opmode & IEEE80211_OPMODE_NOTIF_BW_160_80P80)
-			sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
+			sta->link[link_id]->cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
 		else
-			sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_80;
+			sta->link[link_id]->cur_max_bandwidth = IEEE80211_STA_RX_BW_80;
 		break;
 	case IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ:
 		/* legacy only, no longer used by newer spec */
-		sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
+		sta->link[link_id]->cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
 		break;
 	}
 
-	new_bw = ieee80211_sta_cur_vht_bw(sta, 0);
-	if (new_bw != sta->sta.deflink.bandwidth) {
-		sta->sta.deflink.bandwidth = new_bw;
-		sta_opmode.bw = ieee80211_sta_rx_bw_to_chan_width(sta);
+	new_bw = ieee80211_sta_cur_vht_bw(sta, link_id);
+	if (new_bw != sta->sta.link[link_id]->bandwidth) {
+		sta->sta.link[link_id]->bandwidth = new_bw;
+		sta_opmode.bw = ieee80211_sta_rx_bw_to_chan_width(sta, link_id);
 		changed |= IEEE80211_RC_BW_CHANGED;
 		sta_opmode.changed |= STA_OPMODE_MAX_BW_CHANGED;
 	}
@@ -647,54 +651,56 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 }
 
 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
+				 unsigned int link_id,
 				 struct ieee80211_mgmt *mgmt)
 {
-	struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
+	struct ieee80211_bss_conf *link_conf = sdata->vif.link_conf[link_id];
 
-	if (!sdata->vif.bss_conf.mu_mimo_owner)
+	if (!link_conf->mu_mimo_owner)
 		return;
 
 	if (!memcmp(mgmt->u.action.u.vht_group_notif.position,
-		    bss_conf->mu_group.position, WLAN_USER_POSITION_LEN) &&
+		    link_conf->mu_group.position, WLAN_USER_POSITION_LEN) &&
 	    !memcmp(mgmt->u.action.u.vht_group_notif.membership,
-		    bss_conf->mu_group.membership, WLAN_MEMBERSHIP_LEN))
+		    link_conf->mu_group.membership, WLAN_MEMBERSHIP_LEN))
 		return;
 
-	memcpy(bss_conf->mu_group.membership,
+	memcpy(link_conf->mu_group.membership,
 	       mgmt->u.action.u.vht_group_notif.membership,
 	       WLAN_MEMBERSHIP_LEN);
-	memcpy(bss_conf->mu_group.position,
+	memcpy(link_conf->mu_group.position,
 	       mgmt->u.action.u.vht_group_notif.position,
 	       WLAN_USER_POSITION_LEN);
 
-	ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_MU_GROUPS);
+	ieee80211_link_info_change_notify(sdata, link_id, BSS_CHANGED_MU_GROUPS);
 }
 
-void ieee80211_update_mu_groups(struct ieee80211_vif *vif,
+void ieee80211_update_mu_groups(struct ieee80211_vif *vif, unsigned int link_id,
 				const u8 *membership, const u8 *position)
 {
-	struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+	struct ieee80211_bss_conf *link_conf = vif->link_conf[link_id];
 
-	if (WARN_ON_ONCE(!vif->bss_conf.mu_mimo_owner))
+	if (WARN_ON_ONCE(!link_conf->mu_mimo_owner))
 		return;
 
-	memcpy(bss_conf->mu_group.membership, membership, WLAN_MEMBERSHIP_LEN);
-	memcpy(bss_conf->mu_group.position, position, WLAN_USER_POSITION_LEN);
+	memcpy(link_conf->mu_group.membership, membership, WLAN_MEMBERSHIP_LEN);
+	memcpy(link_conf->mu_group.position, position, WLAN_USER_POSITION_LEN);
 }
 EXPORT_SYMBOL_GPL(ieee80211_update_mu_groups);
 
 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
-				 struct sta_info *sta, u8 opmode,
-				 enum nl80211_band band)
+				 struct sta_info *sta, unsigned int link_id,
+				 u8 opmode, enum nl80211_band band)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
 
-	u32 changed = __ieee80211_vht_handle_opmode(sdata, sta, opmode, band);
+	u32 changed = __ieee80211_vht_handle_opmode(sdata, sta, link_id,
+						    opmode, band);
 
 	if (changed > 0) {
 		ieee80211_recalc_min_chandef(sdata);
-		rate_control_rate_update(local, sband, sta, 0, changed);
+		rate_control_rate_update(local, sband, sta, link_id, changed);
 	}
 }
 
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 11/15] mac80211: add link_id to eht.c code for MLO
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (9 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 10/15] mac80211: add link_id to vht.c code for MLO Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 12/15] mac80211: HT: make ieee80211_ht_cap_ie_to_sta_ht_cap() MLO-aware Johannes Berg
                   ` (3 subsequent siblings)
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

Update the code in eht.c and add the link_id parameter where
necessary.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/cfg.c         |  2 +-
 net/mac80211/eht.c         | 12 ++++++++----
 net/mac80211/ieee80211_i.h |  3 ++-
 net/mac80211/mlme.c        |  2 +-
 4 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 27eb281f53b6..0afff3b0aeee 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1782,7 +1782,7 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 						    params->he_capa_len,
 						    params->eht_capa,
 						    params->eht_capa_len,
-						    sta);
+						    sta, 0);
 
 	if (params->opmode_notif_used) {
 		/* returned value is only needed for rc update, but the
diff --git a/net/mac80211/eht.c b/net/mac80211/eht.c
index 2d9c6e845ce4..de762a803c38 100644
--- a/net/mac80211/eht.c
+++ b/net/mac80211/eht.c
@@ -12,9 +12,11 @@ ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_supported_band *sband,
 				    const u8 *he_cap_ie, u8 he_cap_len,
 				    const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
-				    u8 eht_cap_len, struct sta_info *sta)
+				    u8 eht_cap_len, struct sta_info *sta,
+				    unsigned int link_id)
 {
-	struct ieee80211_sta_eht_cap *eht_cap = &sta->sta.deflink.eht_cap;
+	struct ieee80211_sta_eht_cap *eht_cap =
+		&sta->sta.link[link_id]->eht_cap;
 	struct ieee80211_he_cap_elem *he_cap_ie_elem = (void *)he_cap_ie;
 	u8 eht_ppe_size = 0;
 	u8 mcs_nss_size;
@@ -71,6 +73,8 @@ ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
 
 	eht_cap->has_eht = true;
 
-	sta->deflink.cur_max_bandwidth = ieee80211_sta_cap_rx_bw(sta, 0);
-	sta->sta.deflink.bandwidth = ieee80211_sta_cur_vht_bw(sta, 0);
+	sta->link[link_id]->cur_max_bandwidth =
+		ieee80211_sta_cap_rx_bw(sta, link_id);
+	sta->sta.link[link_id]->bandwidth =
+		ieee80211_sta_cur_vht_bw(sta, link_id);
 }
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 5be96b0bbd96..c59dc8f6126b 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -2577,5 +2577,6 @@ ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_supported_band *sband,
 				    const u8 *he_cap_ie, u8 he_cap_len,
 				    const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
-				    u8 eht_cap_len, struct sta_info *sta);
+				    u8 eht_cap_len, struct sta_info *sta,
+				    unsigned int link_id);
 #endif /* IEEE80211_I_H */
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 643ef0ae786e..459780169e23 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3599,7 +3599,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 							    elems->he_cap_len,
 							    elems->eht_cap,
 							    elems->eht_cap_len,
-							    sta);
+							    sta, 0);
 
 			bss_conf->eht_support = sta->sta.deflink.eht_cap.has_eht;
 		} else {
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 12/15] mac80211: HT: make ieee80211_ht_cap_ie_to_sta_ht_cap() MLO-aware
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (10 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 11/15] mac80211: add link_id to eht.c " Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 13/15] mac80211: make some SMPS code MLD-aware Johannes Berg
                   ` (2 subsequent siblings)
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

Update ieee80211_ht_cap_ie_to_sta_ht_cap() to handle per-link
data.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/cfg.c         |  2 +-
 net/mac80211/ht.c          | 13 +++++++------
 net/mac80211/ibss.c        |  2 +-
 net/mac80211/ieee80211_i.h |  2 +-
 net/mac80211/mesh_plink.c  |  2 +-
 net/mac80211/mlme.c        |  2 +-
 6 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 0afff3b0aeee..cc332b31d219 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1762,7 +1762,7 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 
 	if (params->ht_capa)
 		ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
-						  params->ht_capa, sta);
+						  params->ht_capa, sta, 0);
 
 	/* VHT can override some HT caps such as the A-MSDU max length */
 	if (params->vht_capa)
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index ac94dd69c0a2..22677df83ed8 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -138,7 +138,7 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
 				       struct ieee80211_supported_band *sband,
 				       const struct ieee80211_ht_cap *ht_cap_ie,
-				       struct sta_info *sta)
+				       struct sta_info *sta, unsigned int link_id)
 {
 	struct ieee80211_sta_ht_cap ht_cap, own_cap;
 	u8 ampdu_info, tx_mcs_set_cap;
@@ -243,11 +243,12 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
 		sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_3839;
 
  apply:
-	changed = memcmp(&sta->sta.deflink.ht_cap, &ht_cap, sizeof(ht_cap));
+	changed = memcmp(&sta->sta.link[link_id]->ht_cap,
+			 &ht_cap, sizeof(ht_cap));
 
-	memcpy(&sta->sta.deflink.ht_cap, &ht_cap, sizeof(ht_cap));
+	memcpy(&sta->sta.link[link_id]->ht_cap, &ht_cap, sizeof(ht_cap));
 
-	switch (sdata->vif.bss_conf.chandef.width) {
+	switch (sdata->vif.link_conf[link_id]->chandef.width) {
 	default:
 		WARN_ON_ONCE(1);
 		fallthrough;
@@ -264,9 +265,9 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
 		break;
 	}
 
-	sta->sta.deflink.bandwidth = bw;
+	sta->sta.link[link_id]->bandwidth = bw;
 
-	sta->deflink.cur_max_bandwidth =
+	sta->link[link_id]->cur_max_bandwidth =
 		ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
 				IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20;
 
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 87815a3624f3..09c11c067cbf 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -1051,7 +1051,7 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata,
 		memcpy(&htcap_ie, elems->ht_cap_elem, sizeof(htcap_ie));
 		rates_updated |= ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
 								   &htcap_ie,
-								   sta);
+								   sta, 0);
 
 		if (elems->vht_operation && elems->vht_cap_elem &&
 		    sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_20 &&
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index c59dc8f6126b..e75496a99299 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -2065,7 +2065,7 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
 				       struct ieee80211_supported_band *sband,
 				       const struct ieee80211_ht_cap *ht_cap_ie,
-				       struct sta_info *sta);
+				       struct sta_info *sta, unsigned int link_id);
 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 			  const u8 *da, u16 tid,
 			  u16 initiator, u16 reason_code);
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index fb7e8a9600ca..b64614cd314d 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -438,7 +438,7 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata,
 	sta->sta.deflink.supp_rates[sband->band] = rates;
 
 	if (ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
-					      elems->ht_cap_elem, sta))
+					      elems->ht_cap_elem, sta, 0))
 		changed |= IEEE80211_RC_BW_CHANGED;
 
 	ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 459780169e23..30423b2d4eee 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3566,7 +3566,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 	/* Set up internal HT/VHT capabilities */
 	if (elems->ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_HT))
 		ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
-						  elems->ht_cap_elem, sta);
+						  elems->ht_cap_elem, sta, 0);
 
 	if (elems->vht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
 		ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 13/15] mac80211: make some SMPS code MLD-aware
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (11 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 12/15] mac80211: HT: make ieee80211_ht_cap_ie_to_sta_ht_cap() MLO-aware Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 14/15] mac80211: make ieee80211_he_cap_ie_to_sta_he_cap() MLO-aware Johannes Berg
  2022-06-01  7:39 ` [PATCH 15/15] mac80211: correct link config data in tracing Johannes Berg
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

Start making some SMPS related code MLD-aware. This isn't
really done yet, but again cuts down our 'deflink' reliance.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/dvm/lib.c  |  4 +--
 .../net/wireless/intel/iwlwifi/mvm/utils.c    |  2 +-
 drivers/net/wireless/realtek/rtw88/main.c     |  4 +--
 include/net/mac80211.h                        |  3 +-
 net/mac80211/cfg.c                            | 19 ++++++++----
 net/mac80211/debugfs_netdev.c                 |  2 +-
 net/mac80211/ht.c                             | 29 ++++++++++---------
 net/mac80211/ieee80211_i.h                    |  4 ++-
 net/mac80211/iface.c                          |  2 +-
 net/mac80211/mlme.c                           |  2 +-
 net/mac80211/util.c                           |  5 ++--
 11 files changed, 45 insertions(+), 31 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/lib.c b/drivers/net/wireless/intel/iwlwifi/dvm/lib.c
index 40d790b36d85..1dc974e2c511 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/lib.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/lib.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /******************************************************************************
  *
- * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2008 - 2014, 2022 Intel Corporation. All rights reserved.
  *****************************************************************************/
 #include <linux/etherdevice.h>
 #include <linux/kernel.h>
@@ -441,7 +441,7 @@ static void iwlagn_bt_traffic_change_work(struct work_struct *work)
 		priv->current_ht_config.smps = smps_request;
 		for_each_context(priv, ctx) {
 			if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION)
-				ieee80211_request_smps(ctx->vif, smps_request);
+				ieee80211_request_smps(ctx->vif, 0, smps_request);
 		}
 	}
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
index 3ee5ea3484be..14b2de65bd84 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
@@ -304,7 +304,7 @@ void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			smps_mode = IEEE80211_SMPS_DYNAMIC;
 	}
 
-	ieee80211_request_smps(vif, smps_mode);
+	ieee80211_request_smps(vif, 0, smps_mode);
 }
 
 static bool iwl_wait_stats_complete(struct iwl_notif_wait_data *notif_wait,
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index b151af13e310..a5d541b71ab9 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -1596,9 +1596,9 @@ static void rtw_vif_smps_iter(void *data, u8 *mac,
 		return;
 
 	if (rtwdev->hal.txrx_1ss)
-		ieee80211_request_smps(vif, IEEE80211_SMPS_STATIC);
+		ieee80211_request_smps(vif, 0, IEEE80211_SMPS_STATIC);
 	else
-		ieee80211_request_smps(vif, IEEE80211_SMPS_OFF);
+		ieee80211_request_smps(vif, 0, IEEE80211_SMPS_OFF);
 }
 
 void rtw_set_txrx_1ss(struct rtw_dev *rtwdev, bool txrx_1ss)
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index a3621900fbe4..e7e91b283cab 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -6210,13 +6210,14 @@ void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif,
 /**
  * ieee80211_request_smps - request SM PS transition
  * @vif: &struct ieee80211_vif pointer from the add_interface callback.
+ * @link_id: link ID for MLO, or 0
  * @smps_mode: new SM PS mode
  *
  * This allows the driver to request an SM PS transition in managed
  * mode. This is useful when the driver has more information than
  * the stack about possible interference, for example by bluetooth.
  */
-void ieee80211_request_smps(struct ieee80211_vif *vif,
+void ieee80211_request_smps(struct ieee80211_vif *vif, unsigned int link_id,
 			    enum ieee80211_smps_mode smps_mode);
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index cc332b31d219..cf63542d40fa 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2917,6 +2917,7 @@ static int ieee80211_testmode_dump(struct wiphy *wiphy,
 #endif
 
 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
+				 unsigned int link_id,
 				 enum ieee80211_smps_mode smps_mode)
 {
 	const u8 *ap;
@@ -2930,8 +2931,8 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
 	if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
 		return -EINVAL;
 
-	old_req = sdata->deflink.u.mgd.req_smps;
-	sdata->deflink.u.mgd.req_smps = smps_mode;
+	old_req = sdata->link[link_id]->u.mgd.req_smps;
+	sdata->link[link_id]->u.mgd.req_smps = smps_mode;
 
 	if (old_req == smps_mode &&
 	    smps_mode != IEEE80211_SMPS_AUTOMATIC)
@@ -2943,10 +2944,10 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
 	 * the new value until we associate.
 	 */
 	if (!sdata->u.mgd.associated ||
-	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
+	    sdata->vif.link_conf[link_id]->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
 		return 0;
 
-	ap = sdata->deflink.u.mgd.bssid;
+	ap = sdata->link[link_id]->u.mgd.bssid;
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
@@ -2970,7 +2971,7 @@ int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
 	err = ieee80211_send_smps_action(sdata, smps_mode,
 					 ap, ap);
 	if (err)
-		sdata->deflink.u.mgd.req_smps = old_req;
+		sdata->link[link_id]->u.mgd.req_smps = old_req;
 	else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
 		ieee80211_teardown_tdls_peers(sdata);
 
@@ -2982,6 +2983,7 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	unsigned int link_id;
 
 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
 		return -EOPNOTSUPP;
@@ -2998,7 +3000,12 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 
 	/* no change, but if automatic follow powersave */
 	sdata_lock(sdata);
-	__ieee80211_request_smps_mgd(sdata, sdata->deflink.u.mgd.req_smps);
+	for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
+		if (!sdata->link[link_id])
+			continue;
+		__ieee80211_request_smps_mgd(sdata, link_id,
+					     sdata->link[link_id]->u.mgd.req_smps);
+	}
 	sdata_unlock(sdata);
 
 	if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index bd398b631763..dfb194e15018 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -256,7 +256,7 @@ static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
 		return -EOPNOTSUPP;
 
 	sdata_lock(sdata);
-	err = __ieee80211_request_smps_mgd(sdata, smps_mode);
+	err = __ieee80211_request_smps_mgd(sdata, 0, smps_mode);
 	sdata_unlock(sdata);
 
 	return err;
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 22677df83ed8..111828b559a0 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -542,30 +542,33 @@ int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
 
 void ieee80211_request_smps_mgd_work(struct work_struct *work)
 {
-	struct ieee80211_sub_if_data *sdata =
-		container_of(work, struct ieee80211_sub_if_data,
-			     deflink.u.mgd.request_smps_work);
-
-	sdata_lock(sdata);
-	__ieee80211_request_smps_mgd(sdata,
-				     sdata->deflink.u.mgd.driver_smps_mode);
-	sdata_unlock(sdata);
+	struct ieee80211_link_data *link =
+		container_of(work, struct ieee80211_link_data,
+			     u.mgd.request_smps_work);
+
+	sdata_lock(link->sdata);
+	__ieee80211_request_smps_mgd(link->sdata, link->link_id,
+				     link->u.mgd.driver_smps_mode);
+	sdata_unlock(link->sdata);
 }
 
-void ieee80211_request_smps(struct ieee80211_vif *vif,
+void ieee80211_request_smps(struct ieee80211_vif *vif, unsigned int link_id,
 			    enum ieee80211_smps_mode smps_mode)
 {
 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+	struct ieee80211_link_data *link = sdata->link[link_id];
 
 	if (WARN_ON_ONCE(vif->type != NL80211_IFTYPE_STATION))
 		return;
 
-	if (sdata->deflink.u.mgd.driver_smps_mode == smps_mode)
+	if (WARN_ON(!link))
 		return;
 
-	sdata->deflink.u.mgd.driver_smps_mode = smps_mode;
-	ieee80211_queue_work(&sdata->local->hw,
-			     &sdata->deflink.u.mgd.request_smps_work);
+	if (link->u.mgd.driver_smps_mode == smps_mode)
+		return;
+
+	link->u.mgd.driver_smps_mode = smps_mode;
+	ieee80211_queue_work(&sdata->local->hw, &link->u.mgd.request_smps_work);
 }
 /* this might change ... don't want non-open drivers using it */
 EXPORT_SYMBOL_GPL(ieee80211_request_smps);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index e75496a99299..0948d074c4b9 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -2422,8 +2422,10 @@ u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
 			    struct ieee802_11_elems *elems,
 			    enum nl80211_band band, u32 *basic_rates);
 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
+				 unsigned int link_id,
 				 enum ieee80211_smps_mode smps_mode);
-void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
+void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
+			   unsigned int link_id);
 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
 
 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index c5be60ee12d8..ea75d5d5cb6a 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1657,7 +1657,7 @@ static void ieee80211_recalc_smps_work(struct work_struct *work)
 	struct ieee80211_sub_if_data *sdata =
 		container_of(work, struct ieee80211_sub_if_data, recalc_smps);
 
-	ieee80211_recalc_smps(sdata);
+	ieee80211_recalc_smps(sdata, 0);
 }
 
 /*
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 30423b2d4eee..cdbf7a5dc2ba 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2337,7 +2337,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 	ieee80211_recalc_ps(local);
 	mutex_unlock(&local->iflist_mtx);
 
-	ieee80211_recalc_smps(sdata);
+	ieee80211_recalc_smps(sdata, 0);
 	ieee80211_recalc_ps_vif(sdata);
 
 	netif_carrier_on(sdata->dev);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 4ec96170a679..ecda655e7481 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2803,7 +2803,8 @@ void ieee80211_resume_disconnect(struct ieee80211_vif *vif)
 }
 EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect);
 
-void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata)
+void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
+			   unsigned int link_id)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_chanctx_conf *chanctx_conf;
@@ -2811,7 +2812,7 @@ void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata)
 
 	mutex_lock(&local->chanctx_mtx);
 
-	chanctx_conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
+	chanctx_conf = rcu_dereference_protected(sdata->vif.link_conf[link_id]->chanctx_conf,
 						 lockdep_is_held(&local->chanctx_mtx));
 
 	/*
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 14/15] mac80211: make ieee80211_he_cap_ie_to_sta_he_cap() MLO-aware
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (12 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 13/15] mac80211: make some SMPS code MLD-aware Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  2022-06-01  7:39 ` [PATCH 15/15] mac80211: correct link config data in tracing Johannes Berg
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

Add the link_id parameter and adjust the code accordingly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/cfg.c         |  2 +-
 net/mac80211/he.c          | 16 +++++++++-------
 net/mac80211/ieee80211_i.h |  2 +-
 net/mac80211/mesh_plink.c  |  2 +-
 net/mac80211/mlme.c        |  2 +-
 5 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index cf63542d40fa..bc243716bda0 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1774,7 +1774,7 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 						  (void *)params->he_capa,
 						  params->he_capa_len,
 						  (void *)params->he_6ghz_capa,
-						  sta);
+						  sta, 0);
 
 	if (params->eht_capa)
 		ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
diff --git a/net/mac80211/he.c b/net/mac80211/he.c
index 20448dda8c4d..e48e9a021622 100644
--- a/net/mac80211/he.c
+++ b/net/mac80211/he.c
@@ -10,7 +10,7 @@
 
 static void
 ieee80211_update_from_he_6ghz_capa(const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
-				   struct sta_info *sta)
+				   struct sta_info *sta, unsigned int link_id)
 {
 	enum ieee80211_smps_mode smps_mode;
 
@@ -49,7 +49,7 @@ ieee80211_update_from_he_6ghz_capa(const struct ieee80211_he_6ghz_capa *he_6ghz_
 		break;
 	}
 
-	sta->sta.deflink.he_6ghz_capa = *he_6ghz_capa;
+	sta->sta.link[link_id]->he_6ghz_capa = *he_6ghz_capa;
 }
 
 static void ieee80211_he_mcs_disable(__le16 *he_mcs)
@@ -108,9 +108,9 @@ ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
 				  struct ieee80211_supported_band *sband,
 				  const u8 *he_cap_ie, u8 he_cap_len,
 				  const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
-				  struct sta_info *sta)
+				  struct sta_info *sta, unsigned int link_id)
 {
-	struct ieee80211_sta_he_cap *he_cap = &sta->sta.deflink.he_cap;
+	struct ieee80211_sta_he_cap *he_cap = &sta->sta.link[link_id]->he_cap;
 	struct ieee80211_sta_he_cap own_he_cap;
 	struct ieee80211_he_cap_elem *he_cap_ie_elem = (void *)he_cap_ie;
 	u8 he_ppe_size;
@@ -153,11 +153,13 @@ ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
 
 	he_cap->has_he = true;
 
-	sta->deflink.cur_max_bandwidth = ieee80211_sta_cap_rx_bw(sta, 0);
-	sta->sta.deflink.bandwidth = ieee80211_sta_cur_vht_bw(sta, 0);
+	sta->link[link_id]->cur_max_bandwidth =
+		ieee80211_sta_cap_rx_bw(sta, link_id);
+	sta->sta.link[link_id]->bandwidth =
+		ieee80211_sta_cur_vht_bw(sta, link_id);
 
 	if (sband->band == NL80211_BAND_6GHZ && he_6ghz_capa)
-		ieee80211_update_from_he_6ghz_capa(he_6ghz_capa, sta);
+		ieee80211_update_from_he_6ghz_capa(he_6ghz_capa, sta, link_id);
 
 	ieee80211_he_mcs_intersection(&own_he_cap.he_mcs_nss_supp.rx_mcs_80,
 				      &he_cap->he_mcs_nss_supp.rx_mcs_80,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 0948d074c4b9..c3387ffe27f5 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -2153,7 +2153,7 @@ ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
 				  struct ieee80211_supported_band *sband,
 				  const u8 *he_cap_ie, u8 he_cap_len,
 				  const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
-				  struct sta_info *sta);
+				  struct sta_info *sta, unsigned int link_id);
 void
 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
 				const struct ieee80211_he_spr *he_spr_ie_elem);
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index b64614cd314d..e24bd48bc915 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -447,7 +447,7 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata,
 	ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, elems->he_cap,
 					  elems->he_cap_len,
 					  elems->he_6ghz_capa,
-					  sta);
+					  sta, 0);
 
 	if (bw != sta->sta.deflink.bandwidth)
 		changed |= IEEE80211_RC_BW_CHANGED;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index cdbf7a5dc2ba..b6ee8da07663 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3579,7 +3579,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 						  elems->he_cap,
 						  elems->he_cap_len,
 						  elems->he_6ghz_capa,
-						  sta);
+						  sta, 0);
 
 		bss_conf->he_support = sta->sta.deflink.he_cap.has_he;
 		if (elems->rsnx && elems->rsnx_len &&
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* [PATCH 15/15] mac80211: correct link config data in tracing
  2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
                   ` (13 preceding siblings ...)
  2022-06-01  7:39 ` [PATCH 14/15] mac80211: make ieee80211_he_cap_ie_to_sta_he_cap() MLO-aware Johannes Berg
@ 2022-06-01  7:39 ` Johannes Berg
  14 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01  7:39 UTC (permalink / raw)
  To: linux-wireless; +Cc: Johannes Berg

From: Johannes Berg <johannes.berg@intel.com>

We need to no longer use bss_conf here, but the per-link data.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/trace.h | 48 +++++++++++++++++++++++---------------------
 1 file changed, 25 insertions(+), 23 deletions(-)

diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 5c941fe4d70a..4c6c02dd697d 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -481,34 +481,36 @@ TRACE_EVENT(drv_link_info_changed,
 	),
 
 	TP_fast_assign(
+		struct ieee80211_bss_conf *link_conf = sdata->vif.link_conf[link_id];
+
 		LOCAL_ASSIGN;
 		VIF_ASSIGN;
 		__entry->changed = changed;
 		__entry->link_id = link_id;
-		__entry->shortpre = sdata->vif.bss_conf.use_short_preamble;
-		__entry->cts = sdata->vif.bss_conf.use_cts_prot;
-		__entry->shortslot = sdata->vif.bss_conf.use_short_slot;
-		__entry->enable_beacon = sdata->vif.bss_conf.enable_beacon;
-		__entry->dtimper = sdata->vif.bss_conf.dtim_period;
-		__entry->bcnint = sdata->vif.bss_conf.beacon_int;
-		__entry->assoc_cap = sdata->vif.bss_conf.assoc_capability;
-		__entry->sync_tsf = sdata->vif.bss_conf.sync_tsf;
-		__entry->sync_device_ts = sdata->vif.bss_conf.sync_device_ts;
-		__entry->sync_dtim_count = sdata->vif.bss_conf.sync_dtim_count;
-		__entry->basic_rates = sdata->vif.bss_conf.basic_rates;
-		memcpy(__entry->mcast_rate, sdata->vif.bss_conf.mcast_rate,
+		__entry->shortpre = link_conf->use_short_preamble;
+		__entry->cts = link_conf->use_cts_prot;
+		__entry->shortslot = link_conf->use_short_slot;
+		__entry->enable_beacon = link_conf->enable_beacon;
+		__entry->dtimper = link_conf->dtim_period;
+		__entry->bcnint = link_conf->beacon_int;
+		__entry->assoc_cap = link_conf->assoc_capability;
+		__entry->sync_tsf = link_conf->sync_tsf;
+		__entry->sync_device_ts = link_conf->sync_device_ts;
+		__entry->sync_dtim_count = link_conf->sync_dtim_count;
+		__entry->basic_rates = link_conf->basic_rates;
+		memcpy(__entry->mcast_rate, link_conf->mcast_rate,
 		       sizeof(__entry->mcast_rate));
-		__entry->ht_operation_mode = sdata->vif.bss_conf.ht_operation_mode;
-		__entry->cqm_rssi_thold = sdata->vif.bss_conf.cqm_rssi_thold;
-		__entry->cqm_rssi_hyst = sdata->vif.bss_conf.cqm_rssi_hyst;
-		__entry->channel_width = sdata->vif.bss_conf.chandef.width;
-		__entry->channel_cfreq1 = sdata->vif.bss_conf.chandef.center_freq1;
-		__entry->channel_cfreq1_offset = sdata->vif.bss_conf.chandef.freq1_offset;
-		__entry->qos = sdata->vif.bss_conf.qos;
-		__entry->ps = sdata->vif.bss_conf.ps;
-		__entry->hidden_ssid = sdata->vif.bss_conf.hidden_ssid;
-		__entry->txpower = sdata->vif.bss_conf.txpower;
-		__entry->p2p_oppps_ctwindow = sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow;
+		__entry->ht_operation_mode = link_conf->ht_operation_mode;
+		__entry->cqm_rssi_thold = link_conf->cqm_rssi_thold;
+		__entry->cqm_rssi_hyst = link_conf->cqm_rssi_hyst;
+		__entry->channel_width = link_conf->chandef.width;
+		__entry->channel_cfreq1 = link_conf->chandef.center_freq1;
+		__entry->channel_cfreq1_offset = link_conf->chandef.freq1_offset;
+		__entry->qos = link_conf->qos;
+		__entry->ps = link_conf->ps;
+		__entry->hidden_ssid = link_conf->hidden_ssid;
+		__entry->txpower = link_conf->txpower;
+		__entry->p2p_oppps_ctwindow = link_conf->p2p_noa_attr.oppps_ctwindow;
 	),
 
 	TP_printk(
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 31+ messages in thread

* Re: [PATCH 01/15] mac80211: split bss_info_changed method
  2022-06-01  7:39 ` [PATCH 01/15] mac80211: split bss_info_changed method Johannes Berg
@ 2022-06-01 19:31   ` Jeff Johnson
  2022-06-01 19:39     ` Johannes Berg
  2022-10-18  8:47   ` Wen Gong
  1 sibling, 1 reply; 31+ messages in thread
From: Jeff Johnson @ 2022-06-01 19:31 UTC (permalink / raw)
  To: Johannes Berg, linux-wireless; +Cc: Johannes Berg

On 6/1/2022 12:39 AM, Johannes Berg wrote:
> From: Johannes Berg <johannes.berg@intel.com>
> 
> Split the bss_info_changed method to vif_cfg_changed and
> link_info_changed, with the latter getting a link ID.
> Also change the 'changed' parameter to u64 already, we
> know we need that.

[snip]

> -	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
> -		    vif, changed);
> +	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%llx\n",
> +		    vif, (unsigned long long)changed);

just curious about the typecasting.

https://www.kernel.org/doc/html/latest/core-api/printk-formats.html 
indicates we should always be able to use %lld or %llx for u64 hence no 
typecasting should be needed


^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 01/15] mac80211: split bss_info_changed method
  2022-06-01 19:31   ` Jeff Johnson
@ 2022-06-01 19:39     ` Johannes Berg
  0 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2022-06-01 19:39 UTC (permalink / raw)
  To: Jeff Johnson, linux-wireless

On Wed, 2022-06-01 at 12:31 -0700, Jeff Johnson wrote:
> On 6/1/2022 12:39 AM, Johannes Berg wrote:
> > From: Johannes Berg <johannes.berg@intel.com>
> > 
> > Split the bss_info_changed method to vif_cfg_changed and
> > link_info_changed, with the latter getting a link ID.
> > Also change the 'changed' parameter to u64 already, we
> > know we need that.
> 
> [snip]
> 
> > -	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
> > -		    vif, changed);
> > +	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%llx\n",
> > +		    vif, (unsigned long long)changed);
> 
> just curious about the typecasting.
> 
> https://www.kernel.org/doc/html/latest/core-api/printk-formats.html 
> indicates we should always be able to use %lld or %llx for u64 hence no 
> typecasting should be needed
> 

Hm. I think you're probably right - I used powerpc 20 years ago and it
had 'unsigned long' for u64, but I guess that changed a LONG time ago...
Yep, commit fe333321e2a71 (Jan 2009). Sorry, old habits die hard. :(

johannes

^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 01/15] mac80211: split bss_info_changed method
  2022-06-01  7:39 ` [PATCH 01/15] mac80211: split bss_info_changed method Johannes Berg
  2022-06-01 19:31   ` Jeff Johnson
@ 2022-10-18  8:47   ` Wen Gong
  2022-10-18  8:50     ` Johannes Berg
  1 sibling, 1 reply; 31+ messages in thread
From: Wen Gong @ 2022-10-18  8:47 UTC (permalink / raw)
  To: Johannes Berg, linux-wireless; +Cc: Johannes Berg, ath11k, ath12k

On 6/1/2022 3:39 PM, Johannes Berg wrote:
> From: Johannes Berg <johannes.berg@intel.com>
>
> Split the bss_info_changed method to vif_cfg_changed and
> link_info_changed, with the latter getting a link ID.
> Also change the 'changed' parameter to u64 already, we
> know we need that.
>
> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
> ---
>   
...
> diff --git a/net/mac80211/main.c b/net/mac80211/main.c
> index 0c81ae492df4..6165b90bf0e2 100644
> --- a/net/mac80211/main.c
> +++ b/net/mac80211/main.c
> @@ -199,15 +199,84 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
>   	return ret;
>   }
>   
> +#define BSS_CHANGED_VIF_CFG_FLAGS (BSS_CHANGED_ASSOC |\
> +				   BSS_CHANGED_IDLE |\
> +				   BSS_CHANGED_IBSS |\
> +				   BSS_CHANGED_ARP_FILTER |\
> +				   BSS_CHANGED_SSID)
> +
>   void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
> -				      u32 changed)
> +				      u64 changed)
>   {
>   	struct ieee80211_local *local = sdata->local;
>   
> +	might_sleep();
> +
>   	if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
>   		return;
>   
> -	drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed);
> +	if (WARN_ON_ONCE(changed & (BSS_CHANGED_BEACON |
> +				    BSS_CHANGED_BEACON_ENABLED) &&
> +			 sdata->vif.type != NL80211_IFTYPE_AP &&
> +			 sdata->vif.type != NL80211_IFTYPE_ADHOC &&
> +			 sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
> +			 sdata->vif.type != NL80211_IFTYPE_OCB))
> +		return;
> +
> +	if (WARN_ON_ONCE(sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE ||
> +			 sdata->vif.type == NL80211_IFTYPE_NAN ||
> +			 (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
> +			  !sdata->vif.bss_conf.mu_mimo_owner &&
> +			  !(changed & BSS_CHANGED_TXPOWER))))
> +		return;
> +
> +	if (!check_sdata_in_driver(sdata))
> +		return;
> +
> +	if (changed & BSS_CHANGED_VIF_CFG_FLAGS) {
> +		trace_drv_vif_cfg_changed(local, sdata, changed);
> +		if (local->ops->vif_cfg_changed)
> +			local->ops->vif_cfg_changed(&local->hw, &sdata->vif, changed);
> +	}
> +
> +	if (changed & ~BSS_CHANGED_VIF_CFG_FLAGS) {
> +		/* FIXME: should be for each link */
> +		trace_drv_link_info_changed(local, sdata, 0, changed);
> +		if (local->ops->link_info_changed)
> +			local->ops->link_info_changed(&local->hw, &sdata->vif,
> +						      0, changed);
Hi Johannes,

I think you/someone will change here later for the "/* FIXME: should be 
for each link */", right?

It lead error/kernel crash as below while reconfig single MLO link which 
link id is 2.
When test with single MLO link which link id is 0, not found 
error/kernel crash.

I think it is because the sdata->vif.bss_conf link id is 0, but
the actual MLO link id is 2 when error/kernel crash happened.

Now I did a temp workaround to skip the crash.
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 061b5460799d..46249b9919ac 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -243,7 +243,8 @@ void ieee80211_bss_info_change_notify(struct 
ieee80211_sub_if_data *sdata,
local->ops->vif_cfg_changed(&local->hw, &sdata->vif, ch);
         }

-       if (changed & ~BSS_CHANGED_VIF_CFG_FLAGS) {
+       if (((!sdata->vif.valid_links) || (sdata->vif.valid_links & 
BIT(0))) &&
+           changed & ~BSS_CHANGED_VIF_CFG_FLAGS) {
                 u64 ch = changed & ~BSS_CHANGED_VIF_CFG_FLAGS;

                 /* FIXME: should be for each link */

kernel crash:
[  779.959413] BUG: kernel NULL pointer dereference, address: 
0000000000000000
[  779.959418] #PF: supervisor read access in kernel mode
[  779.959421] #PF: error_code(0x0000) - not-present page
[  779.959424] PGD 0 P4D 0
[  779.959429] Oops: 0000 [#1] PREEMPT SMP PTI
[  779.959433] CPU: 2 PID: 2603 Comm: kworker/2:0 Kdump: loaded Tainted: 
G        W  OE     5.19.0-rc6+ #4
[  779.959438] Hardware name: LENOVO 418065C/418065C, BIOS 83ET63WW 
(1.33 ) 07/29/2011
[  779.959442] Workqueue: events_freezable ieee80211_restart_work [mac80211]
[  779.959493] RIP: 0010:ath12k_mac_link_info_changed+0x31/0xc70 [ath12k]
[  779.959517] Code: 89 e5 41 57 41 56 49 89 d6 41 55 49 89 fd 41 54 49 
89 f4 53 48 89 cb 48 83 ec 48 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 
c0 <48> 8b 06 83 e1 40 48 89 45 a0 48 8b 40 08 48 89 45 a8 0f b6 46 08
[  779.959521] RSP: 0018:ffffbb7f4318bcf0 EFLAGS: 00010246
[  779.959525] RAX: 0000000000000000 RBX: 00000000021424fe RCX: 
00000000021424fe
[  779.959528] RDX: ffffa0878dd95bd8 RSI: 0000000000000000 RDI: 
ffffa08792b6a080
[  779.959531] RBP: ffffbb7f4318bd60 R08: ffffffffc0e8db90 R09: 
c00000010005e8a2
[  779.959534] R10: 0000000000000000 R11: ffffbb7f4318b6b0 R12: 
0000000000000000
[  779.959536] R13: ffffa08792b6a080 R14: ffffa0878dd95bd8 R15: 
ffffa08792b6a080
[  779.959539] FS:  0000000000000000(0000) GS:ffffa088ba280000(0000) 
knlGS:0000000000000000
[  779.959542] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  779.959545] CR2: 0000000000000000 CR3: 0000000103030006 CR4: 
00000000000606e0
[  779.959548] Call Trace:
[  779.959551]  <TASK>
[  779.959557]  ath12k_mac_op_link_info_changed+0x47/0x60 [ath12k]
[  779.959575]  ieee80211_bss_info_change_notify+0x182/0x2a0 [mac80211]
[  779.959617]  ieee80211_reconfig+0xc40/0x1570 [mac80211]
[  779.959672]  ? _raw_spin_unlock_irqrestore+0x27/0x43
[  779.959678]  ? try_to_del_timer_sync+0x53/0x80
[  779.959686]  ieee80211_restart_work+0xfe/0x160 [mac80211]
[  779.959726]  process_one_work+0x227/0x440
[  779.959732]  worker_thread+0x31/0x3e0
[  779.959736]  ? process_one_work+0x440/0x440
[  779.959739]  kthread+0xfe/0x130
[  779.959744]  ? kthread_complete_and_exit+0x20/0x20
[  779.959749]  ret_from_fork+0x22/0x30
[  779.959758]  </TASK>
[  779.959760] Modules linked in: michael_mic ath12k(OE) qmi_helpers 
qrtr_mhi mhi(E) qrtr mac80211(OE) cfg80211(OE) libarc4 rfcomm bnep 
nls_iso8859_1 intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal 
intel_powerclamp coretemp kvm_intel kvm irqbypass snd_ctl_led 
crct10dif_pclmul ghash_clmulni_intel snd_hda_codec_conexant 
snd_hda_codec_hdmi snd_hda_codec_generic aesni_intel snd_hda_intel 
snd_intel_dspcfg snd_hda_codec crypto_simd cryptd rapl intel_cstate 
snd_hda_core snd_hwdep uvcvideo thinkpad_acpi videobuf2_vmalloc 
videobuf2_memops videobuf2_v4l2 nvram ledtrig_audio videobuf2_common 
videodev snd_pcm platform_profile snd_seq_midi snd_seq_midi_event mc 
btusb i915 btrtl btbcm btintel bluetooth cec rc_core snd_rawmidi 
drm_buddy ecdh_generic ecc snd_seq ttm drm_display_helper snd_seq_device 
snd_timer drm_kms_helper snd i2c_algo_bit fb_sys_fops syscopyarea 
sysfillrect sysimgblt soundcore mei_me mei at24 joydev input_leds 
serio_raw mac_hid wmi_bmof sch_fq_codel parport_pc ppdev lp parport drm
[  779.959856]  ip_tables x_tables autofs4 crc32_pclmul sdhci_pci e1000e 
firewire_ohci i2c_i801 ptp ahci pps_core psmouse libahci i2c_smbus 
firewire_core cqhci lpc_ich sdhci crc_itu_t wmi video
[  779.959883] CR2: 0000000000000000
> +	}
> +
> +	if (local->ops->bss_info_changed)
> +		local->ops->bss_info_changed(&local->hw, &sdata->vif,
> +					     &sdata->vif.bss_conf, changed);
> +	trace_drv_return_void(local);
> +}
> +
...

^ permalink raw reply related	[flat|nested] 31+ messages in thread

* Re: [PATCH 01/15] mac80211: split bss_info_changed method
  2022-10-18  8:47   ` Wen Gong
@ 2022-10-18  8:50     ` Johannes Berg
  2022-10-18  8:52       ` Wen Gong
  0 siblings, 1 reply; 31+ messages in thread
From: Johannes Berg @ 2022-10-18  8:50 UTC (permalink / raw)
  To: Wen Gong, linux-wireless; +Cc: ath11k, ath12k

On Tue, 2022-10-18 at 16:47 +0800, Wen Gong wrote:
> 
> > +	if (changed & ~BSS_CHANGED_VIF_CFG_FLAGS) {
> > +		/* FIXME: should be for each link */
> > +		trace_drv_link_info_changed(local, sdata, 0, changed);
> > +		if (local->ops->link_info_changed)
> > +			local->ops->link_info_changed(&local->hw, &sdata->vif,
> > +						      0, changed);
> 
> I think you/someone will change here later for the "/* FIXME: should be 
> for each link */", right?

Maybe. I'm not actually sure it's really needed, it depends how we use
this in the future.

> It lead error/kernel crash as below while reconfig single MLO link which 
> link id is 2.
> When test with single MLO link which link id is 0, not found 
> error/kernel crash.

I'm not surprised, I just worked on fixing reconfig in the last few
days, will post it after some more review/testing.

So I think that might not need changes *here*, but rather a proper FW
restart. Which I haven't tested in AP mode though -- was the crash in AP
mode?

johannes

^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 01/15] mac80211: split bss_info_changed method
  2022-10-18  8:50     ` Johannes Berg
@ 2022-10-18  8:52       ` Wen Gong
  2022-10-18  8:53         ` Johannes Berg
  0 siblings, 1 reply; 31+ messages in thread
From: Wen Gong @ 2022-10-18  8:52 UTC (permalink / raw)
  To: Johannes Berg, linux-wireless; +Cc: ath11k, ath12k

On 10/18/2022 4:50 PM, Johannes Berg wrote:
> On Tue, 2022-10-18 at 16:47 +0800, Wen Gong wrote:
>>> +	if (changed & ~BSS_CHANGED_VIF_CFG_FLAGS) {
>>> +		/* FIXME: should be for each link */
>>> +		trace_drv_link_info_changed(local, sdata, 0, changed);
>>> +		if (local->ops->link_info_changed)
>>> +			local->ops->link_info_changed(&local->hw, &sdata->vif,
>>> +						      0, changed);
>> I think you/someone will change here later for the "/* FIXME: should be
>> for each link */", right?
> Maybe. I'm not actually sure it's really needed, it depends how we use
> this in the future.
>
>> It lead error/kernel crash as below while reconfig single MLO link which
>> link id is 2.
>> When test with single MLO link which link id is 0, not found
>> error/kernel crash.
> I'm not surprised, I just worked on fixing reconfig in the last few
> days, will post it after some more review/testing.
Thanks.
> So I think that might not need changes *here*, but rather a proper FW
> restart. Which I haven't tested in AP mode though -- was the crash in AP
> mode?
It is crash in station mode.
> johannes

^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 01/15] mac80211: split bss_info_changed method
  2022-10-18  8:52       ` Wen Gong
@ 2022-10-18  8:53         ` Johannes Berg
  2022-10-18  9:50           ` Wen Gong
  0 siblings, 1 reply; 31+ messages in thread
From: Johannes Berg @ 2022-10-18  8:53 UTC (permalink / raw)
  To: Wen Gong, linux-wireless; +Cc: ath11k, ath12k

On Tue, 2022-10-18 at 16:52 +0800, Wen Gong wrote:
> On 10/18/2022 4:50 PM, Johannes Berg wrote:
> > On Tue, 2022-10-18 at 16:47 +0800, Wen Gong wrote:
> > > > +	if (changed & ~BSS_CHANGED_VIF_CFG_FLAGS) {
> > > > +		/* FIXME: should be for each link */
> > > > +		trace_drv_link_info_changed(local, sdata, 0, changed);
> > > > +		if (local->ops->link_info_changed)
> > > > +			local->ops->link_info_changed(&local->hw, &sdata->vif,
> > > > +						      0, changed);
> > > I think you/someone will change here later for the "/* FIXME: should be
> > > for each link */", right?
> > Maybe. I'm not actually sure it's really needed, it depends how we use
> > this in the future.
> > 
> > > It lead error/kernel crash as below while reconfig single MLO link which
> > > link id is 2.
> > > When test with single MLO link which link id is 0, not found
> > > error/kernel crash.
> > I'm not surprised, I just worked on fixing reconfig in the last few
> > days, will post it after some more review/testing.
> Thanks.
> > So I think that might not need changes *here*, but rather a proper FW
> > restart. Which I haven't tested in AP mode though -- was the crash in AP
> > mode?
> It is crash in station mode.

try this?

https://p.sipsolutions.net/0652bbbbe350b126.txt

johannes

^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 01/15] mac80211: split bss_info_changed method
  2022-10-18  8:53         ` Johannes Berg
@ 2022-10-18  9:50           ` Wen Gong
  2022-10-18  9:51             ` Johannes Berg
  0 siblings, 1 reply; 31+ messages in thread
From: Wen Gong @ 2022-10-18  9:50 UTC (permalink / raw)
  To: Johannes Berg, linux-wireless; +Cc: ath11k, ath12k

On 10/18/2022 4:53 PM, Johannes Berg wrote:
> On Tue, 2022-10-18 at 16:52 +0800, Wen Gong wrote:
>> On 10/18/2022 4:50 PM, Johannes Berg wrote:
>>> On Tue, 2022-10-18 at 16:47 +0800, Wen Gong wrote:
>>>>> +	if (changed & ~BSS_CHANGED_VIF_CFG_FLAGS) {
>>>>> +		/* FIXME: should be for each link */
>>>>> +		trace_drv_link_info_changed(local, sdata, 0, changed);
>>>>> +		if (local->ops->link_info_changed)
>>>>> +			local->ops->link_info_changed(&local->hw, &sdata->vif,
>>>>> +						      0, changed);
>>>> I think you/someone will change here later for the "/* FIXME: should be
>>>> for each link */", right?
>>> Maybe. I'm not actually sure it's really needed, it depends how we use
>>> this in the future.
>>>
>>>> It lead error/kernel crash as below while reconfig single MLO link which
>>>> link id is 2.
>>>> When test with single MLO link which link id is 0, not found
>>>> error/kernel crash.
>>> I'm not surprised, I just worked on fixing reconfig in the last few
>>> days, will post it after some more review/testing.
>> Thanks.
>>> So I think that might not need changes *here*, but rather a proper FW
>>> restart. Which I haven't tested in AP mode though -- was the crash in AP
>>> mode?
>> It is crash in station mode.
> try this?
>
> https://p.sipsolutions.net/0652bbbbe350b126.txt
>
> johannes

Conflict happened while run "git am" the patch.

Because missing the  "changed |= BSS_CHANGED_EHT_PUNCTURING;" in my 
local code,

also it is missing in 
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git/tree/net/mac80211/util.c

Maybe "changed |= BSS_CHANGED_EHT_PUNCTURING;" is only existed in your 
local code?


^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 01/15] mac80211: split bss_info_changed method
  2022-10-18  9:50           ` Wen Gong
@ 2022-10-18  9:51             ` Johannes Berg
  2022-10-18 10:10               ` Wen Gong
  0 siblings, 1 reply; 31+ messages in thread
From: Johannes Berg @ 2022-10-18  9:51 UTC (permalink / raw)
  To: Wen Gong, linux-wireless; +Cc: ath11k, ath12k

On Tue, 2022-10-18 at 17:50 +0800, Wen Gong wrote:
> > 
> > https://p.sipsolutions.net/0652bbbbe350b126.txt
> 
> Conflict happened while run "git am" the patch.
> 
> Because missing the  "changed |= BSS_CHANGED_EHT_PUNCTURING;" in my 
> local code,
> 
> also it is missing in 
> https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git/tree/net/mac80211/util.c
> 
> Maybe "changed |= BSS_CHANGED_EHT_PUNCTURING;" is only existed in your 
> local code?
> 

Ah yes, we didn't upstream that because there's still this discussion
about handling puncturing. But you can probably apply around that.

johannes

^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 01/15] mac80211: split bss_info_changed method
  2022-10-18  9:51             ` Johannes Berg
@ 2022-10-18 10:10               ` Wen Gong
  2022-10-19  4:32                 ` Wen Gong
  0 siblings, 1 reply; 31+ messages in thread
From: Wen Gong @ 2022-10-18 10:10 UTC (permalink / raw)
  To: Johannes Berg, linux-wireless; +Cc: ath11k, ath12k

On 10/18/2022 5:51 PM, Johannes Berg wrote:
> On Tue, 2022-10-18 at 17:50 +0800, Wen Gong wrote:
>>> https://p.sipsolutions.net/0652bbbbe350b126.txt
>> Conflict happened while run "git am" the patch.
>>
>> Because missing the  "changed |= BSS_CHANGED_EHT_PUNCTURING;" in my
>> local code,
>>
>> also it is missing in
>> https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git/tree/net/mac80211/util.c
>>
>> Maybe "changed |= BSS_CHANGED_EHT_PUNCTURING;" is only existed in your
>> local code?
>>
> Ah yes, we didn't upstream that because there's still this discussion
> about handling puncturing. But you can probably apply around that.
>
> johannes

Yes, after apply it.

and apply "commit 3d901102922723eedce6ef10ebd03315a7abb8a5 wifi: 
mac80211: implement link switching" to

fix build error because my local code is not latest.

it is built success, I will try it later.


^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 01/15] mac80211: split bss_info_changed method
  2022-10-18 10:10               ` Wen Gong
@ 2022-10-19  4:32                 ` Wen Gong
  2022-12-15 15:04                   ` Wen Gong
  0 siblings, 1 reply; 31+ messages in thread
From: Wen Gong @ 2022-10-19  4:32 UTC (permalink / raw)
  To: Johannes Berg, linux-wireless; +Cc: ath11k, ath12k

On 10/18/2022 6:10 PM, Wen Gong wrote:
> On 10/18/2022 5:51 PM, Johannes Berg wrote:
>> On Tue, 2022-10-18 at 17:50 +0800, Wen Gong wrote:
>>>> https://p.sipsolutions.net/0652bbbbe350b126.txt
>>> Conflict happened while run "git am" the patch.
>>>
>>> Because missing the  "changed |= BSS_CHANGED_EHT_PUNCTURING;" in my
>>> local code,
>>>
>>> also it is missing in
>>> https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git/tree/net/mac80211/util.c 
>>>
>>>
>>> Maybe "changed |= BSS_CHANGED_EHT_PUNCTURING;" is only existed in your
>>> local code?
>>>
>> Ah yes, we didn't upstream that because there's still this discussion
>> about handling puncturing. But you can probably apply around that.
>>
>> johannes
>
> Yes, after apply it.
>
> and apply "commit 3d901102922723eedce6ef10ebd03315a7abb8a5 wifi: 
> mac80211: implement link switching" to
>
> fix build error because my local code is not latest.
>
> it is built success, I will try it later.
>
Hi johannes,

After above change, no error/kernel crash happened while reconfig single 
MLO link which link id is 2.


^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 01/15] mac80211: split bss_info_changed method
  2022-10-19  4:32                 ` Wen Gong
@ 2022-12-15 15:04                   ` Wen Gong
  0 siblings, 0 replies; 31+ messages in thread
From: Wen Gong @ 2022-12-15 15:04 UTC (permalink / raw)
  To: Johannes Berg, linux-wireless; +Cc: ath11k, ath12k

On 10/19/2022 12:32 PM, Wen Gong wrote:
> On 10/18/2022 6:10 PM, Wen Gong wrote:
>> On 10/18/2022 5:51 PM, Johannes Berg wrote:
>>> On Tue, 2022-10-18 at 17:50 +0800, Wen Gong wrote:
>>>>> https://p.sipsolutions.net/0652bbbbe350b126.txt
>>>> Conflict happened while run "git am" the patch.
>>>>
>>>> Because missing the  "changed |= BSS_CHANGED_EHT_PUNCTURING;" in my
>>>> local code,
>>>>
>>>> also it is missing in
>>>> https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git/tree/net/mac80211/util.c 
>>>>
>>>>
>>>> Maybe "changed |= BSS_CHANGED_EHT_PUNCTURING;" is only existed in your
>>>> local code?
>>>>
>>> Ah yes, we didn't upstream that because there's still this discussion
>>> about handling puncturing. But you can probably apply around that.
>>>
>>> johannes
>>
>> Yes, after apply it.
>>
>> and apply "commit 3d901102922723eedce6ef10ebd03315a7abb8a5 wifi: 
>> mac80211: implement link switching" to
>>
>> fix build error because my local code is not latest.
>>
>> it is built success, I will try it later.
>>
> Hi johannes,
>
> After above change, no error/kernel crash happened while reconfig 
> single MLO link which link id is 2.

Hi Johannes,

I see this patch https://p.sipsolutions.net/0652bbbbe350b126.txt is not 
merged to 
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git/tree/net/mac80211/util.c

will your merge it later?



^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 04/15] mac80211: make channel context code MLO-aware
  2022-06-01  7:39 ` [PATCH 04/15] mac80211: make channel context code MLO-aware Johannes Berg
@ 2023-02-14  7:57   ` Wen Gong
  2023-02-14  8:04     ` Johannes Berg
  0 siblings, 1 reply; 31+ messages in thread
From: Wen Gong @ 2023-02-14  7:57 UTC (permalink / raw)
  To: Johannes Berg, linux-wireless, ath11k; +Cc: Johannes Berg

On 6/1/2022 3:39 PM, Johannes Berg wrote:
> From: Johannes Berg <johannes.berg@intel.com>
>
> Make the channel context code MLO aware, along with some
> functions that it uses, so that the chan.c file is now
> MLD-clean and no longer uses deflink/bss_conf/etc.
>
> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
...
> diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
> index f22381127948..b268088585eb 100644
> --- a/net/mac80211/rate.c
> +++ b/net/mac80211/rate.c
> @@ -90,14 +90,17 @@ void rate_control_tx_status(struct ieee80211_local *local,
>   }
>   
>   void rate_control_rate_update(struct ieee80211_local *local,
> -				    struct ieee80211_supported_band *sband,
> -				    struct sta_info *sta, u32 changed)
> +			      struct ieee80211_supported_band *sband,
> +			      struct sta_info *sta, unsigned int link_id,
> +			      u32 changed)
>   {
>   	struct rate_control_ref *ref = local->rate_ctrl;
>   	struct ieee80211_sta *ista = &sta->sta;
>   	void *priv_sta = sta->rate_ctrl_priv;
>   	struct ieee80211_chanctx_conf *chanctx_conf;
>   
> +	WARN_ON(link_id != 0);
> +
>   	if (ref && ref->ops->rate_update) {
>   		rcu_read_lock();
>   

Why link_id must = 0 here?

Now I hit a warning here.

[421752.744684] wlan0: [link 1] AP 02:03:7f:01:52:26 changed bandwidth, 
new config is 6435.000 MHz, width 1 (6435.000/0 MHz)
[421752.744760] ------------[ cut here ]------------
[421752.744762] WARNING: CPU: 4 PID: 3844301 at net/mac80211/rate.c:104 
rate_control_rate_update+0xe2/0x100 [mac80211]
[421752.744833] Modules linked in: tls cpuid rfcomm ccm michael_mic cmac 
algif_hash algif_skcipher af_alg qrtr_mhi bnep intel_rapl_msr 
intel_rapl_common snd_hda_codec_realtek snd_hda_codec_generic 
ledtrig_audio edac_mce_amd snd_hda_codec_hdmi snd_hda_intel 
snd_intel_dspcfg qrtr snd_hda_codec kvm_amd snd_hda_core binfmt_misc 
ath12k snd_hwdep kvm snd_pcm mhi irqbypass qmi_helpers nls_iso8859_1 
snd_seq_midi crct10dif_pclmul btusb snd_seq_midi_event 
ghash_clmulni_intel mac80211 snd_rawmidi btrtl aesni_intel crypto_simd 
snd_seq cryptd btbcm btintel snd_seq_device rapl input_leds bluetooth 
joydev wmi_bmof serio_raw snd_timer cfg80211 k10temp ecdh_generic ecc 
snd libarc4 ccp soundcore ucsi_acpi typec_ucsi typec mac_hid cm32181 
industrialio sch_fq_codel msr parport_pc ppdev lp parport ramoops 
reed_solomon drm efi_pstore ip_tables x_tables autofs4 ax88179_178a 
usbnet mii hid_generic usbhid hid crc32_pclmul nvme ahci i2c_piix4 
libahci nvme_core wmi video
[421752.744982] CPU: 4 PID: 3844301 Comm: kworker/u32:2 Kdump: loaded 
Tainted: G        W          6.0.0-rc2+ #3
[421752.744989] Hardware name: AMD Celadon-RN/Celadon-RN, BIOS RCD0080A 
09/04/2019
[421752.744993] Workqueue: phy0 ieee80211_iface_work [mac80211]
[421752.745048] RIP: 0010:rate_control_rate_update+0xe2/0x100 [mac80211]
[421752.745100] Code: e8 f3 a3 33 d0 48 8b 73 50 44 89 f1 4c 89 ea 4c 89 
ff e8 71 16 fe ff 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 de 24 20 
d1 <0f> 0b e9 4c ff ff ff 0f 0b e8 c0 a3 33 d0 eb dd 0f 1f 40 00 66 2e
[421752.745104] RSP: 0018:ffffadc0911efab0 EFLAGS: 00010202
[421752.745109] RAX: 0000000000000000 RBX: ffff9e8619b20000 RCX: 
0000000000000001
[421752.745112] RDX: ffff9e8619b20000 RSI: ffff9e8412ac3610 RDI: 
ffff9e8412ac08e0
[421752.745115] RBP: ffffadc0911efaf8 R08: 0000000000000001 R09: 
c000000100b1fe35
[421752.745117] R10: ffff9e8412ac04f0 R11: ffffadc0911ef9c0 R12: 
0000000000000000
[421752.745120] R13: ffff9e8619b20ab0 R14: 0000000000000001 R15: 
ffff9e8412ac08e0
[421752.745123] FS:  0000000000000000(0000) GS:ffff9e86ff700000(0000) 
knlGS:0000000000000000
[421752.745127] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[421752.745130] CR2: 00007f03cdb34538 CR3: 00000002f020a000 CR4: 
0000000000350ee0
[421752.745133] Call Trace:
[421752.745137]  <TASK>
[421752.745147]  ieee80211_chan_bw_change+0x100/0x130 [mac80211]
[421752.745213]  ieee80211_change_chanctx+0x51/0x2a0 [mac80211]
[421752.745263]  ieee80211_recalc_chanctx_chantype+0x133/0x180 [mac80211]
[421752.745287]  ieee80211_link_change_bandwidth+0xf5/0x180 [mac80211]
[421752.745306]  ieee80211_rx_mgmt_beacon+0xc82/0x1b30 [mac80211]
[421752.745333]  ? update_load_avg+0x224/0x770
[421752.745338]  ? update_load_avg+0x224/0x770
[421752.745339]  ? native_send_call_func_single_ipi+0x1e/0x30
[421752.745344]  ieee80211_sta_rx_queued_mgmt+0x173/0xad0 [mac80211]
[421752.745364]  ? newidle_balance+0x256/0x410
[421752.745367]  ? preempt_count_add+0x7c/0xc0
[421752.745370]  ? _raw_spin_lock_irqsave+0x28/0x60
[421752.745375]  ieee80211_iface_work+0x2fc/0x400 [mac80211]
[421752.745395]  process_one_work+0x227/0x440
[421752.745398]  worker_thread+0x31/0x3e0
[421752.745400]  ? process_one_work+0x440/0x440
[421752.745402]  kthread+0xfe/0x130
[421752.745404]  ? kthread_complete_and_exit+0x20/0x20
[421752.745407]  ret_from_fork+0x22/0x30
[421752.745412]  </TASK>
[421752.745412] ---[ end trace 0000000000000000 ]---

...

>   

^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 04/15] mac80211: make channel context code MLO-aware
  2023-02-14  7:57   ` Wen Gong
@ 2023-02-14  8:04     ` Johannes Berg
  2023-02-14  8:09       ` Wen Gong
  0 siblings, 1 reply; 31+ messages in thread
From: Johannes Berg @ 2023-02-14  8:04 UTC (permalink / raw)
  To: Wen Gong, linux-wireless, ath11k

On Tue, 2023-02-14 at 15:57 +0800, Wen Gong wrote:
> 
> >   void rate_control_rate_update(struct ieee80211_local *local,
> > -				    struct ieee80211_supported_band *sband,
> > -				    struct sta_info *sta, u32 changed)
> > +			      struct ieee80211_supported_band *sband,
> > +			      struct sta_info *sta, unsigned int link_id,
> > +			      u32 changed)
> >   {
> >   	struct rate_control_ref *ref = local->rate_ctrl;
> >   	struct ieee80211_sta *ista = &sta->sta;
> >   	void *priv_sta = sta->rate_ctrl_priv;
> >   	struct ieee80211_chanctx_conf *chanctx_conf;
> >   
> > +	WARN_ON(link_id != 0);
> > +
> >   	if (ref && ref->ops->rate_update) {
> >   		rcu_read_lock();
> >   
> 
> Why link_id must = 0 here?
> 

The whole software rate scaling hasn't been adjusted for MLO yet.

johannes

^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 04/15] mac80211: make channel context code MLO-aware
  2023-02-14  8:04     ` Johannes Berg
@ 2023-02-14  8:09       ` Wen Gong
  2023-02-14  8:13         ` Johannes Berg
  0 siblings, 1 reply; 31+ messages in thread
From: Wen Gong @ 2023-02-14  8:09 UTC (permalink / raw)
  To: Johannes Berg, linux-wireless, ath11k

On 2/14/2023 4:04 PM, Johannes Berg wrote:
> On Tue, 2023-02-14 at 15:57 +0800, Wen Gong wrote:
>>>    void rate_control_rate_update(struct ieee80211_local *local,
>>> -				    struct ieee80211_supported_band *sband,
>>> -				    struct sta_info *sta, u32 changed)
>>> +			      struct ieee80211_supported_band *sband,
>>> +			      struct sta_info *sta, unsigned int link_id,
>>> +			      u32 changed)
>>>    {
>>>    	struct rate_control_ref *ref = local->rate_ctrl;
>>>    	struct ieee80211_sta *ista = &sta->sta;
>>>    	void *priv_sta = sta->rate_ctrl_priv;
>>>    	struct ieee80211_chanctx_conf *chanctx_conf;
>>>    
>>> +	WARN_ON(link_id != 0);
>>> +
>>>    	if (ref && ref->ops->rate_update) {
>>>    		rcu_read_lock();
>>>    
>> Why link_id must = 0 here?
>>
> The whole software rate scaling hasn't been adjusted for MLO yet.

Got it. Thanks.

So I guess this WARN_ON will be change later.

>
> johannes

^ permalink raw reply	[flat|nested] 31+ messages in thread

* Re: [PATCH 04/15] mac80211: make channel context code MLO-aware
  2023-02-14  8:09       ` Wen Gong
@ 2023-02-14  8:13         ` Johannes Berg
  0 siblings, 0 replies; 31+ messages in thread
From: Johannes Berg @ 2023-02-14  8:13 UTC (permalink / raw)
  To: Wen Gong, linux-wireless, ath11k

On Tue, 2023-02-14 at 16:09 +0800, Wen Gong wrote:
> On 2/14/2023 4:04 PM, Johannes Berg wrote:
> > On Tue, 2023-02-14 at 15:57 +0800, Wen Gong wrote:
> > > >    void rate_control_rate_update(struct ieee80211_local *local,
> > > > -				    struct ieee80211_supported_band *sband,
> > > > -				    struct sta_info *sta, u32 changed)
> > > > +			      struct ieee80211_supported_band *sband,
> > > > +			      struct sta_info *sta, unsigned int link_id,
> > > > +			      u32 changed)
> > > >    {
> > > >    	struct rate_control_ref *ref = local->rate_ctrl;
> > > >    	struct ieee80211_sta *ista = &sta->sta;
> > > >    	void *priv_sta = sta->rate_ctrl_priv;
> > > >    	struct ieee80211_chanctx_conf *chanctx_conf;
> > > >    
> > > > +	WARN_ON(link_id != 0);
> > > > +
> > > >    	if (ref && ref->ops->rate_update) {
> > > >    		rcu_read_lock();
> > > >    
> > > Why link_id must = 0 here?
> > > 
> > The whole software rate scaling hasn't been adjusted for MLO yet.
> 
> Got it. Thanks.
> 
> So I guess this WARN_ON will be change later.
> 

Since you're running into it, you should probably think about addressing
this ... I'm not going to, our hardware doesn't use this code.

johannes

^ permalink raw reply	[flat|nested] 31+ messages in thread

end of thread, other threads:[~2023-02-14  8:14 UTC | newest]

Thread overview: 31+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-06-01  7:39 [PATCH 00/15] mac80211 MLO updates Johannes Berg
2022-06-01  7:39 ` [PATCH 01/15] mac80211: split bss_info_changed method Johannes Berg
2022-06-01 19:31   ` Jeff Johnson
2022-06-01 19:39     ` Johannes Berg
2022-10-18  8:47   ` Wen Gong
2022-10-18  8:50     ` Johannes Berg
2022-10-18  8:52       ` Wen Gong
2022-10-18  8:53         ` Johannes Berg
2022-10-18  9:50           ` Wen Gong
2022-10-18  9:51             ` Johannes Berg
2022-10-18 10:10               ` Wen Gong
2022-10-19  4:32                 ` Wen Gong
2022-12-15 15:04                   ` Wen Gong
2022-06-01  7:39 ` [PATCH 02/15] mac80211: add per-link configuration pointer Johannes Berg
2022-06-01  7:39 ` [PATCH 03/15] mac80211: pass link ID where already present Johannes Berg
2022-06-01  7:39 ` [PATCH 04/15] mac80211: make channel context code MLO-aware Johannes Berg
2023-02-14  7:57   ` Wen Gong
2023-02-14  8:04     ` Johannes Berg
2023-02-14  8:09       ` Wen Gong
2023-02-14  8:13         ` Johannes Berg
2022-06-01  7:39 ` [PATCH 05/15] mac80211: remove sta_info_tx_streams() Johannes Berg
2022-06-01  7:39 ` [PATCH 06/15] mac80211: refactor some sta_info link handling Johannes Berg
2022-06-01  7:39 ` [PATCH 07/15] mac80211: use IEEE80211_MLD_MAX_NUM_LINKS Johannes Berg
2022-06-01  7:39 ` [PATCH 08/15] mac80211: validate some driver features for MLO Johannes Berg
2022-06-01  7:39 ` [PATCH 09/15] mac80211: refactor some link setup code Johannes Berg
2022-06-01  7:39 ` [PATCH 10/15] mac80211: add link_id to vht.c code for MLO Johannes Berg
2022-06-01  7:39 ` [PATCH 11/15] mac80211: add link_id to eht.c " Johannes Berg
2022-06-01  7:39 ` [PATCH 12/15] mac80211: HT: make ieee80211_ht_cap_ie_to_sta_ht_cap() MLO-aware Johannes Berg
2022-06-01  7:39 ` [PATCH 13/15] mac80211: make some SMPS code MLD-aware Johannes Berg
2022-06-01  7:39 ` [PATCH 14/15] mac80211: make ieee80211_he_cap_ie_to_sta_he_cap() MLO-aware Johannes Berg
2022-06-01  7:39 ` [PATCH 15/15] mac80211: correct link config data in tracing Johannes Berg

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