1 files changed, 162 insertions, 70 deletions

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 2d1e3fd9b526..9e923ecb0891 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -241,7 +241,10 @@ const struct htt_rx_ring_tlv_filter ath11k_mac_mon_status_filter_default = {
 #define ath11k_a_rates (ath11k_legacy_rates + 4)
 #define ath11k_a_rates_size (ARRAY_SIZE(ath11k_legacy_rates) - 4)
 
-#define ATH11K_MAC_SCAN_TIMEOUT_MSECS 200 /* in msecs */
+#define ATH11K_MAC_SCAN_CMD_EVT_OVERHEAD		200 /* in msecs */
+
+/* Overhead due to the processing of channel switch events from FW */
+#define ATH11K_SCAN_CHANNEL_SWITCH_WMI_EVT_OVERHEAD	10 /* in msecs */
 
 static const u32 ath11k_smps_map[] = {
 	[WLAN_HT_CAP_SM_PS_STATIC] = WMI_PEER_SMPS_STATIC,
@@ -3612,6 +3615,7 @@ static int ath11k_mac_op_hw_scan(struct ieee80211_hw *hw,
 	struct scan_req_params arg;
 	int ret = 0;
 	int i;
+	u32 scan_timeout;
 
 	mutex_lock(&ar->conf_mutex);
 
@@ -3681,6 +3685,26 @@ static int ath11k_mac_op_hw_scan(struct ieee80211_hw *hw,
 		ether_addr_copy(arg.mac_mask.addr, req->mac_addr_mask);
 	}
 
+	/* if duration is set, default dwell times will be overwritten */
+	if (req->duration) {
+		arg.dwell_time_active = req->duration;
+		arg.dwell_time_active_2g = req->duration;
+		arg.dwell_time_active_6g = req->duration;
+		arg.dwell_time_passive = req->duration;
+		arg.dwell_time_passive_6g = req->duration;
+		arg.burst_duration = req->duration;
+
+		scan_timeout = min_t(u32, arg.max_rest_time *
+				(arg.num_chan - 1) + (req->duration +
+				ATH11K_SCAN_CHANNEL_SWITCH_WMI_EVT_OVERHEAD) *
+				arg.num_chan, arg.max_scan_time);
+	} else {
+		scan_timeout = arg.max_scan_time;
+	}
+
+	/* Add a margin to account for event/command processing */
+	scan_timeout += ATH11K_MAC_SCAN_CMD_EVT_OVERHEAD;
+
 	ret = ath11k_start_scan(ar, &arg);
 	if (ret) {
 		ath11k_warn(ar->ab, "failed to start hw scan: %d\n", ret);
@@ -3689,10 +3713,8 @@ static int ath11k_mac_op_hw_scan(struct ieee80211_hw *hw,
 		spin_unlock_bh(&ar->data_lock);
 	}
 
-	/* Add a 200ms margin to account for event/command processing */
 	ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
-				     msecs_to_jiffies(arg.max_scan_time +
-						      ATH11K_MAC_SCAN_TIMEOUT_MSECS));
+				     msecs_to_jiffies(scan_timeout));
 
 exit:
 	kfree(arg.chan_list);
@@ -4215,10 +4237,11 @@ static void ath11k_sta_rc_update_wk(struct work_struct *wk)
 	const u8 *ht_mcs_mask;
 	const u16 *vht_mcs_mask;
 	const u16 *he_mcs_mask;
-	u32 changed, bw, nss, smps;
+	u32 changed, bw, nss, smps, bw_prev;
 	int err, num_vht_rates, num_he_rates;
 	const struct cfg80211_bitrate_mask *mask;
 	struct peer_assoc_params peer_arg;
+	enum wmi_phy_mode peer_phymode;
 
 	arsta = container_of(wk, struct ath11k_sta, update_wk);
 	sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
@@ -4239,6 +4262,7 @@ static void ath11k_sta_rc_update_wk(struct work_struct *wk)
 	arsta->changed = 0;
 
 	bw = arsta->bw;
+	bw_prev = arsta->bw_prev;
 	nss = arsta->nss;
 	smps = arsta->smps;
 
@@ -4252,26 +4276,57 @@ static void ath11k_sta_rc_update_wk(struct work_struct *wk)
 			   ath11k_mac_max_he_nss(he_mcs_mask)));
 
 	if (changed & IEEE80211_RC_BW_CHANGED) {
-		/* Send peer assoc command before set peer bandwidth param to
-		 * avoid the mismatch between the peer phymode and the peer
-		 * bandwidth.
-		 */
-		ath11k_peer_assoc_prepare(ar, arvif->vif, sta, &peer_arg, true);
-
-		peer_arg.is_assoc = false;
-		err = ath11k_wmi_send_peer_assoc_cmd(ar, &peer_arg);
-		if (err) {
-			ath11k_warn(ar->ab, "failed to send peer assoc for STA %pM vdev %i: %d\n",
-				    sta->addr, arvif->vdev_id, err);
-		} else if (wait_for_completion_timeout(&ar->peer_assoc_done, 1 * HZ)) {
+		/* Get the peer phymode */
+		ath11k_peer_assoc_h_phymode(ar, arvif->vif, sta, &peer_arg);
+		peer_phymode = peer_arg.peer_phymode;
+
+		ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac update sta %pM peer bw %d phymode %d\n",
+			   sta->addr, bw, peer_phymode);
+
+		if (bw > bw_prev) {
+			/* BW is upgraded. In this case we send WMI_PEER_PHYMODE
+			 * followed by WMI_PEER_CHWIDTH
+			 */
+			ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac BW upgrade for sta %pM new BW %d, old BW %d\n",
+				   sta->addr, bw, bw_prev);
+
+			err = ath11k_wmi_set_peer_param(ar, sta->addr, arvif->vdev_id,
+							WMI_PEER_PHYMODE, peer_phymode);
+
+			if (err) {
+				ath11k_warn(ar->ab, "failed to update STA %pM peer phymode %d: %d\n",
+					    sta->addr, peer_phymode, err);
+				goto err_rc_bw_changed;
+			}
+
 			err = ath11k_wmi_set_peer_param(ar, sta->addr, arvif->vdev_id,
 							WMI_PEER_CHWIDTH, bw);
+
 			if (err)
 				ath11k_warn(ar->ab, "failed to update STA %pM peer bw %d: %d\n",
 					    sta->addr, bw, err);
 		} else {
-			ath11k_warn(ar->ab, "failed to get peer assoc conf event for %pM vdev %i\n",
-				    sta->addr, arvif->vdev_id);
+			/* BW is downgraded. In this case we send WMI_PEER_CHWIDTH
+			 * followed by WMI_PEER_PHYMODE
+			 */
+			ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "mac BW downgrade for sta %pM new BW %d,old BW %d\n",
+				   sta->addr, bw, bw_prev);
+
+			err = ath11k_wmi_set_peer_param(ar, sta->addr, arvif->vdev_id,
+							WMI_PEER_CHWIDTH, bw);
+
+			if (err) {
+				ath11k_warn(ar->ab, "failed to update STA %pM peer bw %d: %d\n",
+					    sta->addr, bw, err);
+				goto err_rc_bw_changed;
+			}
+
+			err = ath11k_wmi_set_peer_param(ar, sta->addr, arvif->vdev_id,
+							WMI_PEER_PHYMODE, peer_phymode);
+
+			if (err)
+				ath11k_warn(ar->ab, "failed to update STA %pM peer phymode %d: %d\n",
+					    sta->addr, peer_phymode, err);
 		}
 	}
 
@@ -4352,6 +4407,7 @@ static void ath11k_sta_rc_update_wk(struct work_struct *wk)
 		}
 	}
 
+err_rc_bw_changed:
 	mutex_unlock(&ar->conf_mutex);
 }
 
@@ -4505,6 +4561,34 @@ exit:
 	return ret;
 }
 
+static u32 ath11k_mac_ieee80211_sta_bw_to_wmi(struct ath11k *ar,
+					      struct ieee80211_sta *sta)
+{
+	u32 bw = WMI_PEER_CHWIDTH_20MHZ;
+
+	switch (sta->deflink.bandwidth) {
+	case IEEE80211_STA_RX_BW_20:
+		bw = WMI_PEER_CHWIDTH_20MHZ;
+		break;
+	case IEEE80211_STA_RX_BW_40:
+		bw = WMI_PEER_CHWIDTH_40MHZ;
+		break;
+	case IEEE80211_STA_RX_BW_80:
+		bw = WMI_PEER_CHWIDTH_80MHZ;
+		break;
+	case IEEE80211_STA_RX_BW_160:
+		bw = WMI_PEER_CHWIDTH_160MHZ;
+		break;
+	default:
+		ath11k_warn(ar->ab, "Invalid bandwidth %d for %pM\n",
+			    sta->deflink.bandwidth, sta->addr);
+		bw = WMI_PEER_CHWIDTH_20MHZ;
+		break;
+	}
+
+	return bw;
+}
+
 static int ath11k_mac_op_sta_state(struct ieee80211_hw *hw,
 				   struct ieee80211_vif *vif,
 				   struct ieee80211_sta *sta,
@@ -4590,6 +4674,12 @@ static int ath11k_mac_op_sta_state(struct ieee80211_hw *hw,
 		if (ret)
 			ath11k_warn(ar->ab, "Failed to associate station: %pM\n",
 				    sta->addr);
+
+		spin_lock_bh(&ar->data_lock);
+		/* Set arsta bw and prev bw */
+		arsta->bw = ath11k_mac_ieee80211_sta_bw_to_wmi(ar, sta);
+		arsta->bw_prev = arsta->bw;
+		spin_unlock_bh(&ar->data_lock);
 	} else if (old_state == IEEE80211_STA_ASSOC &&
 		   new_state == IEEE80211_STA_AUTHORIZED) {
 		spin_lock_bh(&ar->ab->base_lock);
@@ -4713,28 +4803,8 @@ static void ath11k_mac_op_sta_rc_update(struct ieee80211_hw *hw,
 	spin_lock_bh(&ar->data_lock);
 
 	if (changed & IEEE80211_RC_BW_CHANGED) {
-		bw = WMI_PEER_CHWIDTH_20MHZ;
-
-		switch (sta->deflink.bandwidth) {
-		case IEEE80211_STA_RX_BW_20:
-			bw = WMI_PEER_CHWIDTH_20MHZ;
-			break;
-		case IEEE80211_STA_RX_BW_40:
-			bw = WMI_PEER_CHWIDTH_40MHZ;
-			break;
-		case IEEE80211_STA_RX_BW_80:
-			bw = WMI_PEER_CHWIDTH_80MHZ;
-			break;
-		case IEEE80211_STA_RX_BW_160:
-			bw = WMI_PEER_CHWIDTH_160MHZ;
-			break;
-		default:
-			ath11k_warn(ar->ab, "Invalid bandwidth %d in rc update for %pM\n",
-				    sta->deflink.bandwidth, sta->addr);
-			bw = WMI_PEER_CHWIDTH_20MHZ;
-			break;
-		}
-
+		bw = ath11k_mac_ieee80211_sta_bw_to_wmi(ar, sta);
+		arsta->bw_prev = arsta->bw;
 		arsta->bw = bw;
 	}
 
@@ -6163,6 +6233,40 @@ void ath11k_mac_11d_scan_stop_all(struct ath11k_base *ab)
 	}
 }
 
+static int ath11k_mac_vdev_delete(struct ath11k *ar, struct ath11k_vif *arvif)
+{
+	unsigned long time_left;
+	struct ieee80211_vif *vif = arvif->vif;
+	int ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	reinit_completion(&ar->vdev_delete_done);
+
+	ret = ath11k_wmi_vdev_delete(ar, arvif->vdev_id);
+	if (ret) {
+		ath11k_warn(ar->ab, "failed to delete WMI vdev %d: %d\n",
+			    arvif->vdev_id, ret);
+		return ret;
+	}
+
+	time_left = wait_for_completion_timeout(&ar->vdev_delete_done,
+						ATH11K_VDEV_DELETE_TIMEOUT_HZ);
+	if (time_left == 0) {
+		ath11k_warn(ar->ab, "Timeout in receiving vdev delete response\n");
+		return -ETIMEDOUT;
+	}
+
+	ar->ab->free_vdev_map |= 1LL << (arvif->vdev_id);
+	ar->allocated_vdev_map &= ~(1LL << arvif->vdev_id);
+	ar->num_created_vdevs--;
+
+	ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "vdev %pM deleted, vdev_id %d\n",
+		   vif->addr, arvif->vdev_id);
+
+	return ret;
+}
+
 static int ath11k_mac_op_add_interface(struct ieee80211_hw *hw,
 				       struct ieee80211_vif *vif)
 {
@@ -6373,18 +6477,16 @@ static int ath11k_mac_op_add_interface(struct ieee80211_hw *hw,
 
 	ath11k_dp_vdev_tx_attach(ar, arvif);
 
+	ath11k_debugfs_add_interface(arvif);
+
 	if (vif->type != NL80211_IFTYPE_MONITOR &&
 	    test_bit(ATH11K_FLAG_MONITOR_CONF_ENABLED, &ar->monitor_flags)) {
 		ret = ath11k_mac_monitor_vdev_create(ar);
-		if (ret) {
+		if (ret)
 			ath11k_warn(ar->ab, "failed to create monitor vdev during add interface: %d",
 				    ret);
-			goto err_peer_del;
-		}
 	}
 
-	ath11k_debugfs_add_interface(arvif);
-
 	mutex_unlock(&ar->conf_mutex);
 
 	return 0;
@@ -6400,16 +6502,12 @@ err_peer_del:
 	}
 
 err_vdev_del:
-	ath11k_wmi_vdev_delete(ar, arvif->vdev_id);
-	ar->num_created_vdevs--;
-	ar->allocated_vdev_map &= ~(1LL << arvif->vdev_id);
-	ab->free_vdev_map |= 1LL << arvif->vdev_id;
+	ath11k_mac_vdev_delete(ar, arvif);
 	spin_lock_bh(&ar->data_lock);
 	list_del(&arvif->list);
 	spin_unlock_bh(&ar->data_lock);
 
 err:
-	ath11k_debugfs_remove_interface(arvif);
 	mutex_unlock(&ar->conf_mutex);
 
 	return ret;
@@ -6432,7 +6530,6 @@ static void ath11k_mac_op_remove_interface(struct ieee80211_hw *hw,
 	struct ath11k *ar = hw->priv;
 	struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif);
 	struct ath11k_base *ab = ar->ab;
-	unsigned long time_left;
 	int ret;
 	int i;
 
@@ -6453,29 +6550,13 @@ static void ath11k_mac_op_remove_interface(struct ieee80211_hw *hw,
 				    arvif->vdev_id, ret);
 	}
 
-	reinit_completion(&ar->vdev_delete_done);
-
-	ret = ath11k_wmi_vdev_delete(ar, arvif->vdev_id);
+	ret = ath11k_mac_vdev_delete(ar, arvif);
 	if (ret) {
-		ath11k_warn(ab, "failed to delete WMI vdev %d: %d\n",
+		ath11k_warn(ab, "failed to delete vdev %d: %d\n",
 			    arvif->vdev_id, ret);
 		goto err_vdev_del;
 	}
 
-	time_left = wait_for_completion_timeout(&ar->vdev_delete_done,
-						ATH11K_VDEV_DELETE_TIMEOUT_HZ);
-	if (time_left == 0) {
-		ath11k_warn(ab, "Timeout in receiving vdev delete response\n");
-		goto err_vdev_del;
-	}
-
-	ab->free_vdev_map |= 1LL << (arvif->vdev_id);
-	ar->allocated_vdev_map &= ~(1LL << arvif->vdev_id);
-	ar->num_created_vdevs--;
-
-	ath11k_dbg(ab, ATH11K_DBG_MAC, "vdev %pM deleted, vdev_id %d\n",
-		   vif->addr, arvif->vdev_id);
-
 	if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR) {
 		clear_bit(ATH11K_FLAG_MONITOR_VDEV_CREATED, &ar->monitor_flags);
 		ar->monitor_vdev_id = -1;
@@ -7929,6 +8010,7 @@ ath11k_mac_op_reconfig_complete(struct ieee80211_hw *hw,
 	struct ath11k *ar = hw->priv;
 	struct ath11k_base *ab = ar->ab;
 	int recovery_count;
+	struct ath11k_vif *arvif;
 
 	if (reconfig_type != IEEE80211_RECONFIG_TYPE_RESTART)
 		return;
@@ -7964,6 +8046,12 @@ ath11k_mac_op_reconfig_complete(struct ieee80211_hw *hw,
 				ath11k_dbg(ab, ATH11K_DBG_BOOT, "reset success\n");
 			}
 		}
+		if (ar->ab->hw_params.support_fw_mac_sequence) {
+			list_for_each_entry(arvif, &ar->arvifs, list) {
+				if (arvif->is_up && arvif->vdev_type == WMI_VDEV_TYPE_STA)
+					ieee80211_hw_restart_disconnect(arvif->vif);
+			}
+		}
 	}
 
 	mutex_unlock(&ar->conf_mutex);
@@ -8539,6 +8627,7 @@ err_fallback:
 
 static const struct ieee80211_ops ath11k_ops = {
 	.tx				= ath11k_mac_op_tx,
+	.wake_tx_queue			= ieee80211_handle_wake_tx_queue,
 	.start                          = ath11k_mac_op_start,
 	.stop                           = ath11k_mac_op_stop,
 	.reconfig_complete              = ath11k_mac_op_reconfig_complete,
@@ -9014,6 +9103,9 @@ static int __ath11k_mac_register(struct ath11k *ar)
 				      NL80211_EXT_FEATURE_UNSOL_BCAST_PROBE_RESP);
 	}
 
+	wiphy_ext_feature_set(ar->hw->wiphy,
+			      NL80211_EXT_FEATURE_SET_SCAN_DWELL);
+
 	ath11k_reg_init(ar);
 
 	if (!test_bit(ATH11K_FLAG_RAW_MODE, &ab->dev_flags)) {