Merge tag 'iwlwifi-next-for-kalle-2018-05-30' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

Final batch of iwlwifi patches for 4.18

* Some bugzilla fixes;
* Some kernel warning fixes;
* Fix for an (ETSI) WMM limits bug;
* Fix for a Bluetooth coexistence problem on 9000 devices;
* Fix for an interoperability bug related to block-ack sessions;

14 files changed, 83 insertions, 62 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/6000.c b/drivers/net/wireless/intel/iwlwifi/cfg/6000.c
index 51cec0bb75fc76..dbcec7ce786307 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/6000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/6000.c
@@ -373,6 +373,7 @@ const struct iwl_cfg iwl6000_3agn_cfg = {
 	.eeprom_params = &iwl6000_eeprom_params,
 	.ht_params = &iwl6000_ht_params,
 	.led_mode = IWL_LED_BLINK,
+	.csr = &iwl_csr_v1,
 };
 
 MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX));
diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/9000.c b/drivers/net/wireless/intel/iwlwifi/cfg/9000.c
index 9706624911f8c9..e20c30b29c03fa 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/9000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/9000.c
@@ -137,7 +137,7 @@ static const struct iwl_tt_params iwl9000_tt_params = {
 	.base_params = &iwl9000_base_params,				\
 	.led_mode = IWL_LED_RF_STATE,					\
 	.nvm_hw_section_num = NVM_HW_SECTION_NUM_FAMILY_9000,		\
-	.non_shared_ant = ANT_A,					\
+	.non_shared_ant = ANT_B,					\
 	.dccm_offset = IWL9000_DCCM_OFFSET,				\
 	.dccm_len = IWL9000_DCCM_LEN,					\
 	.dccm2_offset = IWL9000_DCCM2_OFFSET,				\
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h b/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h
index e7565f37ece987..7e570c4a9df0ed 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/rx.h
@@ -295,6 +295,7 @@ enum iwl_rx_mpdu_status {
 	IWL_RX_MPDU_STATUS_MIC_OK		= BIT(6),
 	IWL_RX_MPDU_RES_STATUS_TTAK_OK		= BIT(7),
 	IWL_RX_MPDU_STATUS_SEC_MASK		= 0x7 << 8,
+	IWL_RX_MPDU_STATUS_SEC_UNKNOWN		= IWL_RX_MPDU_STATUS_SEC_MASK,
 	IWL_RX_MPDU_STATUS_SEC_NONE		= 0x0 << 8,
 	IWL_RX_MPDU_STATUS_SEC_WEP		= 0x1 << 8,
 	IWL_RX_MPDU_STATUS_SEC_CCM		= 0x2 << 8,
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index 0f9d56420c4244..b815ba38dbdb17 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -1025,8 +1025,7 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 			continue;
 
 		copy_rd->reg_rules[i].wmm_rule = d_wmm +
-			(regd->reg_rules[i].wmm_rule - s_wmm) /
-			sizeof(struct ieee80211_wmm_rule);
+			(regd->reg_rules[i].wmm_rule - s_wmm);
 	}
 
 out:
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 5f0701c992a401..f3cab26f81b5d5 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -2685,7 +2685,7 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
 
 	mutex_lock(&mvm->mutex);
 	/* track whether or not the station is associated */
-	mvm_sta->associated = new_state >= IEEE80211_STA_ASSOC;
+	mvm_sta->sta_state = new_state;
 
 	if (old_state == IEEE80211_STA_NOTEXIST &&
 	    new_state == IEEE80211_STA_NONE) {
@@ -2737,8 +2737,7 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
 			iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
 		}
 
-		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
-				     true);
+		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band);
 		ret = iwl_mvm_update_sta(mvm, vif, sta);
 	} else if (old_state == IEEE80211_STA_ASSOC &&
 		   new_state == IEEE80211_STA_AUTHORIZED) {
@@ -2754,8 +2753,7 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
 		/* enable beacon filtering */
 		WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
 
-		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
-				     false);
+		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band);
 
 		ret = 0;
 	} else if (old_state == IEEE80211_STA_AUTHORIZED &&
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
index af7bc3b7b0c390..642da10b0b7fdd 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
@@ -3,6 +3,7 @@
  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of version 2 of the GNU General Public License as
@@ -13,10 +14,6 @@
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  * more details.
  *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
  * The full GNU General Public License is included in this distribution in the
  * file called LICENSE.
  *
@@ -651,9 +648,10 @@ static void rs_tl_turn_on_agg(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
 	}
 
 	tid_data = &mvmsta->tid_data[tid];
-	if ((tid_data->state == IWL_AGG_OFF) &&
+	if (mvmsta->sta_state >= IEEE80211_STA_AUTHORIZED &&
+	    tid_data->state == IWL_AGG_OFF &&
 	    (lq_sta->tx_agg_tid_en & BIT(tid)) &&
-	    (tid_data->tx_count_last >= IWL_MVM_RS_AGG_START_THRESHOLD)) {
+	    tid_data->tx_count_last >= IWL_MVM_RS_AGG_START_THRESHOLD) {
 		IWL_DEBUG_RATE(mvm, "try to aggregate tid %d\n", tid);
 		if (rs_tl_turn_on_agg_for_tid(mvm, lq_sta, tid, sta) == 0)
 			tid_data->state = IWL_AGG_QUEUED;
@@ -1257,7 +1255,7 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		       (unsigned long)(lq_sta->last_tx +
 				       (IWL_MVM_RS_IDLE_TIMEOUT * HZ)))) {
 		IWL_DEBUG_RATE(mvm, "Tx idle for too long. reinit rs\n");
-		iwl_mvm_rs_rate_init(mvm, sta, info->band, false);
+		iwl_mvm_rs_rate_init(mvm, sta, info->band);
 		return;
 	}
 	lq_sta->last_tx = jiffies;
@@ -2690,9 +2688,9 @@ static void rs_get_initial_rate(struct iwl_mvm *mvm,
 				struct ieee80211_sta *sta,
 				struct iwl_lq_sta *lq_sta,
 				enum nl80211_band band,
-				struct rs_rate *rate,
-				bool init)
+				struct rs_rate *rate)
 {
+	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 	int i, nentries;
 	unsigned long active_rate;
 	s8 best_rssi = S8_MIN;
@@ -2754,7 +2752,8 @@ static void rs_get_initial_rate(struct iwl_mvm *mvm,
 		 * bandwidth rate, and after authorization, when the phy context
 		 * is already up-to-date, re-init rs with the correct bw.
 		 */
-		u32 bw = init ? RATE_MCS_CHAN_WIDTH_20 : rs_bw_from_sta_bw(sta);
+		u32 bw = mvmsta->sta_state < IEEE80211_STA_AUTHORIZED ?
+				RATE_MCS_CHAN_WIDTH_20 : rs_bw_from_sta_bw(sta);
 
 		switch (bw) {
 		case RATE_MCS_CHAN_WIDTH_40:
@@ -2839,9 +2838,9 @@ void rs_update_last_rssi(struct iwl_mvm *mvm,
 static void rs_initialize_lq(struct iwl_mvm *mvm,
 			     struct ieee80211_sta *sta,
 			     struct iwl_lq_sta *lq_sta,
-			     enum nl80211_band band,
-			     bool init)
+			     enum nl80211_band band)
 {
+	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 	struct iwl_scale_tbl_info *tbl;
 	struct rs_rate *rate;
 	u8 active_tbl = 0;
@@ -2857,7 +2856,7 @@ static void rs_initialize_lq(struct iwl_mvm *mvm,
 	tbl = &(lq_sta->lq_info[active_tbl]);
 	rate = &tbl->rate;
 
-	rs_get_initial_rate(mvm, sta, lq_sta, band, rate, init);
+	rs_get_initial_rate(mvm, sta, lq_sta, band, rate);
 	rs_init_optimal_rate(mvm, sta, lq_sta);
 
 	WARN_ONCE(rate->ant != ANT_A && rate->ant != ANT_B,
@@ -2870,7 +2869,8 @@ static void rs_initialize_lq(struct iwl_mvm *mvm,
 	rs_set_expected_tpt_table(lq_sta, tbl);
 	rs_fill_lq_cmd(mvm, sta, lq_sta, rate);
 	/* TODO restore station should remember the lq cmd */
-	iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, init);
+	iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq,
+			    mvmsta->sta_state < IEEE80211_STA_AUTHORIZED);
 }
 
 static void rs_drv_get_rate(void *mvm_r, struct ieee80211_sta *sta,
@@ -3123,7 +3123,7 @@ void iwl_mvm_update_frame_stats(struct iwl_mvm *mvm, u32 rate, bool agg)
  * Called after adding a new station to initialize rate scaling
  */
 static void rs_drv_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			     enum nl80211_band band, bool init)
+			     enum nl80211_band band)
 {
 	int i, j;
 	struct ieee80211_hw *hw = mvm->hw;
@@ -3203,7 +3203,7 @@ static void rs_drv_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	iwl_mvm_reset_frame_stats(mvm);
 #endif
-	rs_initialize_lq(mvm, sta, lq_sta, band, init);
+	rs_initialize_lq(mvm, sta, lq_sta, band);
 }
 
 static void rs_drv_rate_update(void *mvm_r,
@@ -3223,7 +3223,7 @@ static void rs_drv_rate_update(void *mvm_r,
 	for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++)
 		ieee80211_stop_tx_ba_session(sta, tid);
 
-	iwl_mvm_rs_rate_init(mvm, sta, sband->band, false);
+	iwl_mvm_rs_rate_init(mvm, sta, sband->band);
 }
 
 #ifdef CONFIG_MAC80211_DEBUGFS
@@ -4069,12 +4069,12 @@ static const struct rate_control_ops rs_mvm_ops_drv = {
 };
 
 void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			  enum nl80211_band band, bool init)
+			  enum nl80211_band band)
 {
 	if (iwl_mvm_has_tlc_offload(mvm))
 		rs_fw_rate_init(mvm, sta, band);
 	else
-		rs_drv_rate_init(mvm, sta, band, init);
+		rs_drv_rate_init(mvm, sta, band);
 }
 
 int iwl_mvm_rate_control_register(void)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.h b/drivers/net/wireless/intel/iwlwifi/mvm/rs.h
index 5e89141656c0c8..cffb8c852934b2 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.h
@@ -3,6 +3,7 @@
  * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of version 2 of the GNU General Public License as
@@ -13,10 +14,6 @@
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  * more details.
  *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
  * The full GNU General Public License is included in this distribution in the
  * file called LICENSE.
  *
@@ -410,7 +407,7 @@ struct iwl_lq_sta {
 
 /* Initialize station's rate scaling information after adding station */
 void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			  enum nl80211_band band, bool init);
+			  enum nl80211_band band);
 
 /* Notify RS about Tx status */
 void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index bb63e75a9b7f37..129c4c09648dcb 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -227,12 +227,24 @@ static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm,
 }
 
 static int iwl_mvm_rx_crypto(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
-			     struct ieee80211_rx_status *stats,
-			     struct iwl_rx_mpdu_desc *desc, u32 pkt_flags,
-			     int queue, u8 *crypt_len)
+			     struct ieee80211_rx_status *stats, u16 phy_info,
+			     struct iwl_rx_mpdu_desc *desc,
+			     u32 pkt_flags, int queue, u8 *crypt_len)
 {
 	u16 status = le16_to_cpu(desc->status);
 
+	/*
+	 * Drop UNKNOWN frames in aggregation, unless in monitor mode
+	 * (where we don't have the keys).
+	 * We limit this to aggregation because in TKIP this is a valid
+	 * scenario, since we may not have the (correct) TTAK (phase 1
+	 * key) in the firmware.
+	 */
+	if (phy_info & IWL_RX_MPDU_PHY_AMPDU &&
+	    (status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
+	    IWL_RX_MPDU_STATUS_SEC_UNKNOWN && !mvm->monitor_on)
+		return -1;
+
 	if (!ieee80211_has_protected(hdr->frame_control) ||
 	    (status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
 	    IWL_RX_MPDU_STATUS_SEC_NONE)
@@ -578,14 +590,10 @@ void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 	notif = (void *)pkt->data;
 	internal_notif = (void *)notif->payload;
 
-	if (internal_notif->sync) {
-		if (mvm->queue_sync_cookie != internal_notif->cookie) {
-			WARN_ONCE(1,
-				  "Received expired RX queue sync message\n");
-			return;
-		}
-		if (!atomic_dec_return(&mvm->queue_sync_counter))
-			wake_up(&mvm->rx_sync_waitq);
+	if (internal_notif->sync &&
+	    mvm->queue_sync_cookie != internal_notif->cookie) {
+		WARN_ONCE(1, "Received expired RX queue sync message\n");
+		return;
 	}
 
 	switch (internal_notif->type) {
@@ -597,6 +605,10 @@ void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 	default:
 		WARN_ONCE(1, "Invalid identifier %d", internal_notif->type);
 	}
+
+	if (internal_notif->sync &&
+	    !atomic_dec_return(&mvm->queue_sync_counter))
+		wake_up(&mvm->rx_sync_waitq);
 }
 
 /*
@@ -870,7 +882,7 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
 
 	rx_status = IEEE80211_SKB_RXCB(skb);
 
-	if (iwl_mvm_rx_crypto(mvm, hdr, rx_status, desc,
+	if (iwl_mvm_rx_crypto(mvm, hdr, rx_status, phy_info, desc,
 			      le32_to_cpu(pkt->len_n_flags), queue,
 			      &crypt_len)) {
 		kfree_skb(skb);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 4ddd2c427b8385..9263b9aa8b72ff 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -216,7 +216,7 @@ int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT);
 	add_sta_cmd.station_flags |=
 		cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT);
-	if (mvm_sta->associated)
+	if (mvm_sta->sta_state >= IEEE80211_STA_ASSOC)
 		add_sta_cmd.assoc_id = cpu_to_le16(sta->aid);
 
 	if (sta->wme) {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
index 60502c81dfce02..1c43ea8dd8cc15 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
@@ -8,6 +8,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  * Copyright(c) 2015 - 2016 Intel Deutschland GmbH
+ * Copyright(c) 2018 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -18,11 +19,6 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
  * The full GNU General Public License is included in this distribution
  * in the file called COPYING.
  *
@@ -35,6 +31,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  * Copyright(c) 2015 - 2016 Intel Deutschland GmbH
+ * Copyright(c) 2018 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -376,6 +373,7 @@ struct iwl_mvm_rxq_dup_data {
  *	tid.
  * @max_agg_bufsize: the maximal size of the AGG buffer for this station
  * @sta_type: station type
+ * @sta_state: station state according to enum %ieee80211_sta_state
  * @bt_reduced_txpower: is reduced tx power enabled for this station
  * @next_status_eosp: the next reclaimed packet is a PS-Poll response and
  *	we need to signal the EOSP
@@ -416,6 +414,7 @@ struct iwl_mvm_sta {
 	u16 tid_disable_agg;
 	u8 max_agg_bufsize;
 	enum iwl_sta_type sta_type;
+	enum ieee80211_sta_state sta_state;
 	bool bt_reduced_txpower;
 	bool next_status_eosp;
 	spinlock_t lock;
@@ -441,7 +440,6 @@ struct iwl_mvm_sta {
 	u16 amsdu_enabled;
 	u16 max_amsdu_len;
 	bool sleeping;
-	bool associated;
 	u8 agg_tids;
 	u8 sleep_tx_count;
 	u8 avg_energy;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tdls.c b/drivers/net/wireless/intel/iwlwifi/mvm/tdls.c
index 3d97436bbdf550..67f360c0d17e1d 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tdls.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tdls.c
@@ -7,6 +7,7 @@
  *
  * Copyright(c) 2014 Intel Mobile Communications GmbH
  * Copyright(c) 2017 Intel Deutschland GmbH
+ * Copyright(C) 2018 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -18,9 +19,7 @@
  * General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
+ * along with this program.
  *
  * The full GNU General Public License is included in this distribution
  * in the file called COPYING.
@@ -33,6 +32,7 @@
  *
  * Copyright(c) 2014 Intel Mobile Communications GmbH
  * Copyright(c) 2017 Intel Deutschland GmbH
+ * Copyright(C) 2018 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -188,8 +188,14 @@ void iwl_mvm_recalc_tdls_state(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	if (tdls_sta_cnt == 1 && sta_added)
 		iwl_mvm_power_update_mac(mvm);
 
-	/* configure the FW with TDLS peer info */
-	iwl_mvm_tdls_config(mvm, vif);
+	/* Configure the FW with TDLS peer info only if TDLS channel switch
+	 * capability is set.
+	 * TDLS config data is used currently only in TDLS channel switch code.
+	 * Supposed to serve also TDLS buffer station which is not implemneted
+	 * yet in FW*/
+	if (fw_has_capa(&mvm->fw->ucode_capa,
+			IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH))
+		iwl_mvm_tdls_config(mvm, vif);
 
 	/* when the last peer leaves, send a power update last */
 	if (tdls_sta_cnt == 0 && !sta_added)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index df4c60496f72f9..cf2591f2ac236a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -843,8 +843,10 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
 	 * N * subf_len + (N - 1) * pad.
 	 */
 	num_subframes = (max_amsdu_len + pad) / (subf_len + pad);
-	if (num_subframes > 1)
-		*ieee80211_get_qos_ctl(hdr) |= IEEE80211_QOS_CTL_A_MSDU_PRESENT;
+
+	if (sta->max_amsdu_subframes &&
+	    num_subframes > sta->max_amsdu_subframes)
+		num_subframes = sta->max_amsdu_subframes;
 
 	tcp_payload_len = skb_tail_pointer(skb) - skb_transport_header(skb) -
 		tcp_hdrlen(skb) + skb->data_len;
@@ -855,10 +857,12 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
 	 *	1 more for each fragment
 	 *	1 more for the potential data in the header
 	 */
-	num_subframes =
-		min_t(unsigned int, num_subframes,
-		      (mvm->trans->max_skb_frags - 1 -
-		       skb_shinfo(skb)->nr_frags) / 2);
+	if ((num_subframes * 2 + skb_shinfo(skb)->nr_frags + 1) >
+	    mvm->trans->max_skb_frags)
+		num_subframes = 1;
+
+	if (num_subframes > 1)
+		*ieee80211_get_qos_ctl(hdr) |= IEEE80211_QOS_CTL_A_MSDU_PRESENT;
 
 	/* This skb fits in one single A-MSDU */
 	if (num_subframes * mss >= tcp_payload_len) {
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index 959de2f8bb28b6..38234bda901783 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -836,6 +836,9 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	struct iwl_trans *iwl_trans;
 	int ret;
 
+	if (WARN_ONCE(!cfg->csr, "CSR addresses aren't configured\n"))
+		return -EINVAL;
+
 	iwl_trans = iwl_trans_pcie_alloc(pdev, ent, cfg);
 	if (IS_ERR(iwl_trans))
 		return PTR_ERR(iwl_trans);
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
index f772d70a65e437..d15f5ba2dc777b 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -902,6 +902,8 @@ static int _iwl_pcie_rx_init(struct iwl_trans *trans)
 	}
 	def_rxq = trans_pcie->rxq;
 
+	cancel_work_sync(&rba->rx_alloc);
+
 	spin_lock(&rba->lock);
 	atomic_set(&rba->req_pending, 0);
 	atomic_set(&rba->req_ready, 0);