Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem

30 files changed, 988 insertions, 110 deletions

diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c
index c6ea995750db..dd9a18f8dbca 100644
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -376,7 +376,7 @@ int ap_control_add_mac(struct mac_restrictions *mac_restrictions, u8 *mac)
 
 	entry = kmalloc(sizeof(struct mac_entry), GFP_KERNEL);
 	if (entry == NULL)
-		return -1;
+		return -ENOMEM;
 
 	memcpy(entry->addr, mac, ETH_ALEN);
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/commands.h b/drivers/net/wireless/iwlwifi/dvm/commands.h
index 02c9ebb3b340..84e2c0fcfef6 100644
--- a/drivers/net/wireless/iwlwifi/dvm/commands.h
+++ b/drivers/net/wireless/iwlwifi/dvm/commands.h
@@ -1403,6 +1403,7 @@ enum {
 
 #define AGG_TX_STATUS_MSK	0x00000fff	/* bits 0:11 */
 #define AGG_TX_TRY_MSK		0x0000f000	/* bits 12:15 */
+#define AGG_TX_TRY_POS		12
 
 #define AGG_TX_STATE_LAST_SENT_MSK  (AGG_TX_STATE_LAST_SENT_TTL_MSK | \
 				     AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK | \
diff --git a/drivers/net/wireless/iwlwifi/dvm/tt.c b/drivers/net/wireless/iwlwifi/dvm/tt.c
index 67e2e1321b40..03f9bc01c0cc 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tt.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tt.c
@@ -471,8 +471,8 @@ static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp, bool force)
 					set_bit(STATUS_CT_KILL, &priv->status);
 					iwl_perform_ct_kill_task(priv, true);
 				} else {
-					iwl_prepare_ct_kill_task(priv);
 					tt->state = old_state;
+					iwl_prepare_ct_kill_task(priv);
 				}
 			} else if (old_state == IWL_TI_CT_KILL &&
 				  tt->state != IWL_TI_CT_KILL) {
diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c
index d1dccb361391..6aec2df3bb27 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tx.c
@@ -908,6 +908,12 @@ static void iwlagn_count_agg_tx_err_status(struct iwl_priv *priv, u16 status)
 	}
 }
 
+static inline u32 iwlagn_get_scd_ssn(struct iwlagn_tx_resp *tx_resp)
+{
+	return le32_to_cpup((__le32 *)&tx_resp->status +
+			    tx_resp->frame_count) & MAX_SN;
+}
+
 static void iwl_rx_reply_tx_agg(struct iwl_priv *priv,
 				struct iwlagn_tx_resp *tx_resp)
 {
@@ -942,9 +948,15 @@ static void iwl_rx_reply_tx_agg(struct iwl_priv *priv,
 	if (tx_resp->frame_count == 1)
 		return;
 
+	IWL_DEBUG_TX_REPLY(priv, "TXQ %d initial_rate 0x%x ssn %d frm_cnt %d\n",
+			   agg->txq_id,
+			   le32_to_cpu(tx_resp->rate_n_flags),
+			   iwlagn_get_scd_ssn(tx_resp), tx_resp->frame_count);
+
 	/* Construct bit-map of pending frames within Tx window */
 	for (i = 0; i < tx_resp->frame_count; i++) {
 		u16 fstatus = le16_to_cpu(frame_status[i].status);
+		u8 retry_cnt = (fstatus & AGG_TX_TRY_MSK) >> AGG_TX_TRY_POS;
 
 		if (status & AGG_TX_STATUS_MSK)
 			iwlagn_count_agg_tx_err_status(priv, fstatus);
@@ -952,6 +964,14 @@ static void iwl_rx_reply_tx_agg(struct iwl_priv *priv,
 		if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
 			      AGG_TX_STATE_ABORT_MSK))
 			continue;
+
+		if (status & AGG_TX_STATUS_MSK || retry_cnt > 1)
+			IWL_DEBUG_TX_REPLY(priv,
+					   "%d: status %s (0x%04x), try-count (0x%01x)\n",
+					   i,
+					   iwl_get_agg_tx_fail_reason(fstatus),
+					   fstatus & AGG_TX_STATUS_MSK,
+					   retry_cnt);
 	}
 }
 
@@ -982,12 +1002,6 @@ const char *iwl_get_agg_tx_fail_reason(u16 status)
 }
 #endif /* CONFIG_IWLWIFI_DEBUG */
 
-static inline u32 iwlagn_get_scd_ssn(struct iwlagn_tx_resp *tx_resp)
-{
-	return le32_to_cpup((__le32 *)&tx_resp->status +
-			    tx_resp->frame_count) & MAX_SN;
-}
-
 static void iwlagn_count_tx_err_status(struct iwl_priv *priv, u16 status)
 {
 	status &= TX_STATUS_MSK;
@@ -1119,8 +1133,14 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb,
 
 	spin_lock_bh(&priv->sta_lock);
 
-	if (is_agg)
+	if (is_agg) {
+		WARN_ON_ONCE(sta_id >= IWLAGN_STATION_COUNT ||
+			     tid >= IWL_MAX_TID_COUNT);
+		if (txq_id != priv->tid_data[sta_id][tid].agg.txq_id)
+			IWL_ERR(priv, "txq_id mismatch: %d %d\n", txq_id,
+				priv->tid_data[sta_id][tid].agg.txq_id);
 		iwl_rx_reply_tx_agg(priv, tx_resp);
+	}
 
 	__skb_queue_head_init(&skbs);
 
@@ -1224,16 +1244,17 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb,
 		 */
 		if (is_offchannel_skb && freed != 1)
 			IWL_ERR(priv, "OFFCHANNEL SKB freed %d\n", freed);
-	}
 
-	IWL_DEBUG_TX_REPLY(priv, "TXQ %d status %s (0x%08x)\n", txq_id,
-			   iwl_get_tx_fail_reason(status), status);
+		IWL_DEBUG_TX_REPLY(priv, "TXQ %d status %s (0x%08x)\n", txq_id,
+				   iwl_get_tx_fail_reason(status), status);
 
-	IWL_DEBUG_TX_REPLY(priv,
-			   "\t\t\t\tinitial_rate 0x%x retries %d, idx=%d ssn=%d seq_ctl=0x%x\n",
-			   le32_to_cpu(tx_resp->rate_n_flags),
-			   tx_resp->failure_frame, SEQ_TO_INDEX(sequence), ssn,
-			   le16_to_cpu(tx_resp->seq_ctl));
+		IWL_DEBUG_TX_REPLY(priv,
+				   "\t\t\t\tinitial_rate 0x%x retries %d, idx=%d ssn=%d seq_ctl=0x%x\n",
+				   le32_to_cpu(tx_resp->rate_n_flags),
+				   tx_resp->failure_frame,
+				   SEQ_TO_INDEX(sequence), ssn,
+				   le16_to_cpu(tx_resp->seq_ctl));
+	}
 
 	iwl_check_abort_status(priv, tx_resp->frame_count, status);
 	spin_unlock_bh(&priv->sta_lock);
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index 0854dc338881..341dbc0237ea 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -245,6 +245,10 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm,
 	 * that we should share it with another interface.
 	 */
 
+	/* Currently, MAC ID 0 should be used only for the managed vif */
+	if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
+		__clear_bit(0, data.available_mac_ids);
+
 	ieee80211_iterate_active_interfaces_atomic(
 		mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
 		iwl_mvm_mac_iface_iterator, &data);
@@ -286,6 +290,9 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm,
 
 	mvmvif->color = 0;
 
+	INIT_LIST_HEAD(&mvmvif->time_event_data.list);
+	mvmvif->time_event_data.id = TE_MAX;
+
 	/* No need to allocate data queues to P2P Device MAC.*/
 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 		for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
@@ -328,9 +335,6 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm,
 	mvmvif->bcast_sta.sta_id = IWL_MVM_STATION_COUNT;
 	mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
 
-	INIT_LIST_HEAD(&mvmvif->time_event_data.list);
-	mvmvif->time_event_data.id = TE_MAX;
-
 	return 0;
 
 exit_fail:
@@ -585,10 +589,43 @@ static void iwl_mvm_mac_ctxt_cmd_fill_sta(struct iwl_mvm *mvm,
 					  struct iwl_mac_data_sta *ctxt_sta)
 {
 	/* We need the dtim_period to set the MAC as associated */
-	if (vif->bss_conf.assoc && vif->bss_conf.dtim_period)
+	if (vif->bss_conf.assoc && vif->bss_conf.dtim_period) {
+		u32 dtim_offs;
+
+		/*
+		 * The DTIM count counts down, so when it is N that means N
+		 * more beacon intervals happen until the DTIM TBTT. Therefore
+		 * add this to the current time. If that ends up being in the
+		 * future, the firmware will handle it.
+		 *
+		 * Also note that the system_timestamp (which we get here as
+		 * "sync_device_ts") and TSF timestamp aren't at exactly the
+		 * same offset in the frame -- the TSF is at the first symbol
+		 * of the TSF, the system timestamp is at signal acquisition
+		 * time. This means there's an offset between them of at most
+		 * a few hundred microseconds (24 * 8 bits + PLCP time gives
+		 * 384us in the longest case), this is currently not relevant
+		 * as the firmware wakes up around 2ms before the TBTT.
+		 */
+		dtim_offs = vif->bss_conf.sync_dtim_count *
+				vif->bss_conf.beacon_int;
+		/* convert TU to usecs */
+		dtim_offs *= 1024;
+
+		ctxt_sta->dtim_tsf =
+			cpu_to_le64(vif->bss_conf.sync_tsf + dtim_offs);
+		ctxt_sta->dtim_time =
+			cpu_to_le32(vif->bss_conf.sync_device_ts + dtim_offs);
+
+		IWL_DEBUG_INFO(mvm, "DTIM TBTT is 0x%llx/0x%x, offset %d\n",
+			       le64_to_cpu(ctxt_sta->dtim_tsf),
+			       le32_to_cpu(ctxt_sta->dtim_time),
+			       dtim_offs);
+
 		ctxt_sta->is_assoc = cpu_to_le32(1);
-	else
+	} else {
 		ctxt_sta->is_assoc = cpu_to_le32(0);
+	}
 
 	ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int);
 	ctxt_sta->bi_reciprocal =
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index e27eb9724112..e8264e11b12d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -113,10 +113,10 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 		    IEEE80211_HW_REPORTS_TX_ACK_STATUS |
 		    IEEE80211_HW_QUEUE_CONTROL |
 		    IEEE80211_HW_WANT_MONITOR_VIF |
-		    IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC |
 		    IEEE80211_HW_SUPPORTS_PS |
 		    IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
-		    IEEE80211_HW_AMPDU_AGGREGATION;
+		    IEEE80211_HW_AMPDU_AGGREGATION |
+		    IEEE80211_HW_TIMING_BEACON_ONLY;
 
 	hw->queues = IWL_FIRST_AMPDU_QUEUE;
 	hw->offchannel_tx_hw_queue = IWL_OFFCHANNEL_QUEUE;
@@ -857,7 +857,6 @@ iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
 				  bool more_data)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
-	struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
 
 	/* TODO: how do we tell the fw to send frames for a specific TID */
 
@@ -865,8 +864,7 @@ iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
 	 * The fw will send EOSP notification when the last frame will be
 	 * transmitted.
 	 */
-	iwl_mvm_sta_modify_sleep_tx_count(mvm, mvmsta->sta_id, reason,
-					  num_frames);
+	iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames);
 }
 
 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
@@ -890,7 +888,7 @@ static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
 	case STA_NOTIFY_AWAKE:
 		if (WARN_ON(mvmsta->sta_id == IWL_INVALID_STATION))
 			break;
-		iwl_mvm_sta_modify_ps_wake(mvm, mvmsta->sta_id);
+		iwl_mvm_sta_modify_ps_wake(mvm, sta);
 		break;
 	default:
 		break;
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index 3f3ce91ad5c2..3f40ab05bbd8 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -267,6 +267,7 @@ int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 
 	/* rx_status carries information about the packet to mac80211 */
 	rx_status.mactime = le64_to_cpu(phy_info->timestamp);
+	rx_status.device_timestamp = le32_to_cpu(phy_info->system_timestamp);
 	rx_status.band =
 		(phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ?
 				IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 406c53ad0a49..9b21b92aa8d1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -292,7 +292,12 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm,
 	cmd->rxon_flags = iwl_mvm_scan_rxon_flags(req);
 	cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP |
 					MAC_FILTER_IN_BEACON);
-	cmd->type = SCAN_TYPE_FORCED;
+
+	if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
+		cmd->type = cpu_to_le32(SCAN_TYPE_DISCOVERY_FORCED);
+	else
+		cmd->type = cpu_to_le32(SCAN_TYPE_FORCED);
+
 	cmd->repeats = cpu_to_le32(1);
 
 	/*
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index a1eb692d7fad..861a7f9f8e7f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -1188,13 +1188,16 @@ void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm,
 	rcu_read_unlock();
 }
 
-void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, int sta_id)
+void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,
+				struct ieee80211_sta *sta)
 {
+	struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
 	struct iwl_mvm_add_sta_cmd cmd = {
 		.add_modify = STA_MODE_MODIFY,
-		.sta_id = sta_id,
+		.sta_id = mvmsta->sta_id,
 		.modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT,
 		.sleep_state_flags = cpu_to_le16(STA_SLEEP_STATE_AWAKE),
+		.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color),
 	};
 	int ret;
 
@@ -1208,18 +1211,21 @@ void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, int sta_id)
 		IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret);
 }
 
-void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, int sta_id,
+void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm,
+				       struct ieee80211_sta *sta,
 				       enum ieee80211_frame_release_type reason,
 				       u16 cnt)
 {
 	u16 sleep_state_flags =
 		(reason == IEEE80211_FRAME_RELEASE_UAPSD) ?
 			STA_SLEEP_STATE_UAPSD : STA_SLEEP_STATE_PS_POLL;
+	struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
 	struct iwl_mvm_add_sta_cmd cmd = {
 		.add_modify = STA_MODE_MODIFY,
-		.sta_id = sta_id,
+		.sta_id = mvmsta->sta_id,
 		.modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT,
 		.sleep_tx_count = cpu_to_le16(cnt),
+		.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color),
 		/*
 		 * Same modify mask for sleep_tx_count and sleep_state_flags so
 		 * we must set the sleep_state_flags too.
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.h b/drivers/net/wireless/iwlwifi/mvm/sta.h
index bdd7c5ed8222..896f88ac8145 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.h
@@ -362,8 +362,10 @@ int iwl_mvm_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			  struct iwl_mvm_int_sta *bsta);
 int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *bsta);
 void iwl_mvm_sta_drained_wk(struct work_struct *wk);
-void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, int sta_id);
-void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, int sta_id,
+void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,
+				struct ieee80211_sta *sta);
+void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm,
+				       struct ieee80211_sta *sta,
 				       enum ieee80211_frame_release_type reason,
 				       u16 cnt);
 int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.c b/drivers/net/wireless/iwlwifi/mvm/time-event.c
index c09b71f23759..e437e02c7149 100644
--- a/drivers/net/wireless/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/iwlwifi/mvm/time-event.c
@@ -248,6 +248,11 @@ static bool iwl_mvm_time_event_response(struct iwl_notif_wait_data *notif_wait,
 	}
 
 	resp = (void *)pkt->data;
+
+	/* we should never get a response to another TIME_EVENT_CMD here */
+	if (WARN_ON_ONCE(le32_to_cpu(resp->id) != te_data->id))
+		return false;
+
 	te_data->uid = le32_to_cpu(resp->unique_id);
 	IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
 		     te_data->uid);
@@ -265,6 +270,9 @@ static int iwl_mvm_time_event_send_add(struct iwl_mvm *mvm,
 
 	lockdep_assert_held(&mvm->mutex);
 
+	IWL_DEBUG_TE(mvm, "Add new TE, duration %d TU\n",
+		     le32_to_cpu(te_cmd->duration));
+
 	spin_lock_bh(&mvm->time_event_lock);
 	if (WARN_ON(te_data->id != TE_MAX)) {
 		spin_unlock_bh(&mvm->time_event_lock);
@@ -413,7 +421,7 @@ void iwl_mvm_remove_time_event(struct iwl_mvm *mvm,
 		cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color));
 
 	IWL_DEBUG_TE(mvm, "Removing TE 0x%x\n", le32_to_cpu(time_cmd.id));
-	ret = iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, CMD_ASYNC,
+	ret = iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, CMD_SYNC,
 				   sizeof(time_cmd), &time_cmd);
 	if (WARN_ON(ret))
 		return;
diff --git a/drivers/net/wireless/mwifiex/11ac.c b/drivers/net/wireless/mwifiex/11ac.c
new file mode 100644
index 000000000000..cf43b3c29250
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/11ac.c
@@ -0,0 +1,261 @@
+/*
+ * Marvell Wireless LAN device driver: 802.11ac
+ *
+ * Copyright (C) 2013, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License").  You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "fw.h"
+#include "main.h"
+#include "11ac.h"
+
+/* This function converts the 2-bit MCS map to the highest long GI
+ * VHT data rate.
+ */
+static u16
+mwifiex_convert_mcsmap_to_maxrate(struct mwifiex_private *priv,
+				  u8 bands, u16 mcs_map)
+{
+	u8 i, nss, max_mcs;
+	u16 max_rate = 0;
+	u32 usr_vht_cap_info = 0;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	/* tables of the MCS map to the highest data rate (in Mbps)
+	 * supported for long GI
+	 */
+	u16 max_rate_lgi_80MHZ[8][3] = {
+		{0x124, 0x15F, 0x186},	/* NSS = 1 */
+		{0x249, 0x2BE, 0x30C},  /* NSS = 2 */
+		{0x36D, 0x41D, 0x492},  /* NSS = 3 */
+		{0x492, 0x57C, 0x618},  /* NSS = 4 */
+		{0x5B6, 0x6DB, 0x79E},  /* NSS = 5 */
+		{0x6DB, 0x83A, 0x0},    /* NSS = 6 */
+		{0x7FF, 0x999, 0xAAA},  /* NSS = 7 */
+		{0x924, 0xAF8, 0xC30}   /* NSS = 8 */
+	};
+	u16 max_rate_lgi_160MHZ[8][3] = {
+		{0x249, 0x2BE, 0x30C},   /* NSS = 1 */
+		{0x492, 0x57C, 0x618},   /* NSS = 2 */
+		{0x6DB, 0x83A, 0x0},     /* NSS = 3 */
+		{0x924, 0xAF8, 0xC30},   /* NSS = 4 */
+		{0xB6D, 0xDB6, 0xF3C},   /* NSS = 5 */
+		{0xDB6, 0x1074, 0x1248}, /* NSS = 6 */
+		{0xFFF, 0x1332, 0x1554}, /* NSS = 7 */
+		{0x1248, 0x15F0, 0x1860} /* NSS = 8 */
+	};
+
+	if (bands & BAND_AAC)
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_a;
+	else
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_bg;
+
+	/* find the max NSS supported */
+	nss = 0;
+	for (i = 0; i < 8; i++) {
+		max_mcs = (mcs_map >> (2 * i)) & 0x3;
+		if (max_mcs < 3)
+			nss = i;
+	}
+	max_mcs = (mcs_map >> (2 * nss)) & 0x3;
+
+	/* if max_mcs is 3, nss must be 0 (SS = 1). Thus, max mcs is MCS 9 */
+	if (max_mcs >= 3)
+		max_mcs = 2;
+
+	if (GET_VHTCAP_CHWDSET(usr_vht_cap_info)) {
+		/* support 160 MHz */
+		max_rate = max_rate_lgi_160MHZ[nss][max_mcs];
+		if (!max_rate)
+			/* MCS9 is not supported in NSS6 */
+			max_rate = max_rate_lgi_160MHZ[nss][max_mcs - 1];
+	} else {
+		max_rate = max_rate_lgi_80MHZ[nss][max_mcs];
+		if (!max_rate)
+			/* MCS9 is not supported in NSS3 */
+			max_rate = max_rate_lgi_80MHZ[nss][max_mcs - 1];
+	}
+
+	return max_rate;
+}
+
+static void
+mwifiex_fill_vht_cap_info(struct mwifiex_private *priv,
+			  struct mwifiex_ie_types_vhtcap *vht_cap, u8 bands)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+
+	if (bands & BAND_A)
+		vht_cap->vht_cap.vht_cap_info =
+				cpu_to_le32(adapter->usr_dot_11ac_dev_cap_a);
+	else
+		vht_cap->vht_cap.vht_cap_info =
+				cpu_to_le32(adapter->usr_dot_11ac_dev_cap_bg);
+}
+
+static void
+mwifiex_fill_vht_cap_tlv(struct mwifiex_private *priv,
+			 struct mwifiex_ie_types_vhtcap *vht_cap, u8 bands)
+{
+	struct mwifiex_adapter *adapter = priv->adapter;
+	u16 mcs_map_user, mcs_map_resp, mcs_map_result;
+	u16 mcs_user, mcs_resp, nss, tmp;
+
+	/* Fill VHT cap info */
+	mwifiex_fill_vht_cap_info(priv, vht_cap, bands);
+
+	/* rx MCS Set: find the minimum of the user rx mcs and ap rx mcs */
+	mcs_map_user = GET_DEVRXMCSMAP(adapter->usr_dot_11ac_mcs_support);
+	mcs_map_resp = le16_to_cpu(vht_cap->vht_cap.supp_mcs.rx_mcs_map);
+	mcs_map_result = 0;
+
+	for (nss = 1; nss <= 8; nss++) {
+		mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
+		mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
+
+		if ((mcs_user == NO_NSS_SUPPORT) ||
+		    (mcs_resp == NO_NSS_SUPPORT))
+			SET_VHTNSSMCS(mcs_map_result, nss, NO_NSS_SUPPORT);
+		else
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      min(mcs_user, mcs_resp));
+	}
+
+	vht_cap->vht_cap.supp_mcs.rx_mcs_map = cpu_to_le16(mcs_map_result);
+
+	tmp = mwifiex_convert_mcsmap_to_maxrate(priv, bands, mcs_map_result);
+	vht_cap->vht_cap.supp_mcs.rx_highest = cpu_to_le16(tmp);
+
+	/* tx MCS Set: find the minimum of the user tx mcs and ap tx mcs */
+	mcs_map_user = GET_DEVTXMCSMAP(adapter->usr_dot_11ac_mcs_support);
+	mcs_map_resp = le16_to_cpu(vht_cap->vht_cap.supp_mcs.tx_mcs_map);
+	mcs_map_result = 0;
+
+	for (nss = 1; nss <= 8; nss++) {
+		mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
+		mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
+		if ((mcs_user == NO_NSS_SUPPORT) ||
+		    (mcs_resp == NO_NSS_SUPPORT))
+			SET_VHTNSSMCS(mcs_map_result, nss, NO_NSS_SUPPORT);
+		else
+			SET_VHTNSSMCS(mcs_map_result, nss,
+				      min(mcs_user, mcs_resp));
+	}
+
+	vht_cap->vht_cap.supp_mcs.tx_mcs_map = cpu_to_le16(mcs_map_result);
+
+	tmp = mwifiex_convert_mcsmap_to_maxrate(priv, bands, mcs_map_result);
+	vht_cap->vht_cap.supp_mcs.tx_highest = cpu_to_le16(tmp);
+
+	return;
+}
+
+int mwifiex_cmd_append_11ac_tlv(struct mwifiex_private *priv,
+			     struct mwifiex_bssdescriptor *bss_desc,
+			     u8 **buffer)
+{
+	struct mwifiex_ie_types_vhtcap *vht_cap;
+	struct mwifiex_ie_types_oper_mode_ntf *oper_ntf;
+	struct ieee_types_oper_mode_ntf *ieee_oper_ntf;
+	struct mwifiex_ie_types_vht_oper *vht_op;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	u8 supp_chwd_set;
+	u32 usr_vht_cap_info;
+	int ret_len = 0;
+
+	if (bss_desc->bss_band & BAND_A)
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_a;
+	else
+		usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_bg;
+
+	/* VHT Capabilities IE */
+	if (bss_desc->bcn_vht_cap) {
+		vht_cap = (struct mwifiex_ie_types_vhtcap *)*buffer;
+		memset(vht_cap, 0, sizeof(*vht_cap));
+		vht_cap->header.type = cpu_to_le16(WLAN_EID_VHT_CAPABILITY);
+		vht_cap->header.len  =
+				cpu_to_le16(sizeof(struct ieee80211_vht_cap));
+		memcpy((u8 *)vht_cap + sizeof(struct mwifiex_ie_types_header),
+		       (u8 *)bss_desc->bcn_vht_cap +
+		       sizeof(struct ieee_types_header),
+		       le16_to_cpu(vht_cap->header.len));
+
+		mwifiex_fill_vht_cap_tlv(priv, vht_cap, bss_desc->bss_band);
+		*buffer += sizeof(*vht_cap);
+		ret_len += sizeof(*vht_cap);
+	}
+
+	/* VHT Operation IE */
+	if (bss_desc->bcn_vht_oper) {
+		if (priv->bss_mode == HostCmd_BSS_MODE_IBSS) {
+			vht_op = (struct mwifiex_ie_types_vht_oper *)*buffer;
+			memset(vht_op, 0, sizeof(*vht_op));
+			vht_op->header.type =
+					cpu_to_le16(WLAN_EID_VHT_OPERATION);
+			vht_op->header.len  = cpu_to_le16(sizeof(*vht_op) -
+				      sizeof(struct mwifiex_ie_types_header));
+			memcpy((u8 *)vht_op +
+				sizeof(struct mwifiex_ie_types_header),
+			       (u8 *)bss_desc->bcn_vht_oper +
+			       sizeof(struct ieee_types_header),
+			       le16_to_cpu(vht_op->header.len));
+
+			/* negotiate the channel width and central freq
+			 * and keep the central freq as the peer suggests
+			 */
+			supp_chwd_set = GET_VHTCAP_CHWDSET(usr_vht_cap_info);
+
+			switch (supp_chwd_set) {
+			case 0:
+				vht_op->chan_width =
+				     min_t(u8, IEEE80211_VHT_CHANWIDTH_80MHZ,
+					   bss_desc->bcn_vht_oper->chan_width);
+				break;
+			case 1:
+				vht_op->chan_width =
+				     min_t(u8, IEEE80211_VHT_CHANWIDTH_160MHZ,
+					   bss_desc->bcn_vht_oper->chan_width);
+				break;
+			case 2:
+				vht_op->chan_width =
+				     min_t(u8, IEEE80211_VHT_CHANWIDTH_80P80MHZ,
+					   bss_desc->bcn_vht_oper->chan_width);
+				break;
+			default:
+				vht_op->chan_width =
+				     IEEE80211_VHT_CHANWIDTH_USE_HT;
+				break;
+			}
+
+			*buffer += sizeof(*vht_op);
+			ret_len += sizeof(*vht_op);
+		}
+	}
+
+	/* Operating Mode Notification IE */
+	if (bss_desc->oper_mode) {
+		ieee_oper_ntf = bss_desc->oper_mode;
+		oper_ntf = (void *)*buffer;
+		memset(oper_ntf, 0, sizeof(*oper_ntf));
+		oper_ntf->header.type = cpu_to_le16(WLAN_EID_OPMODE_NOTIF);
+		oper_ntf->header.len = cpu_to_le16(sizeof(u8));
+		oper_ntf->oper_mode = ieee_oper_ntf->oper_mode;
+		*buffer += sizeof(*oper_ntf);
+		ret_len += sizeof(*oper_ntf);
+	}
+
+	return ret_len;
+}
diff --git a/drivers/net/wireless/mwifiex/11ac.h b/drivers/net/wireless/mwifiex/11ac.h
new file mode 100644
index 000000000000..80fd1ba46200
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/11ac.h
@@ -0,0 +1,26 @@
+/*
+ * Marvell Wireless LAN device driver: 802.11ac
+ *
+ * Copyright (C) 2013, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License").  You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#ifndef _MWIFIEX_11AC_H_
+#define _MWIFIEX_11AC_H_
+
+int mwifiex_cmd_append_11ac_tlv(struct mwifiex_private *priv,
+				struct mwifiex_bssdescriptor *bss_desc,
+				u8 **buffer);
+#endif /* _MWIFIEX_11AC_H_ */
diff --git a/drivers/net/wireless/mwifiex/11n.c b/drivers/net/wireless/mwifiex/11n.c
index 25596ab0c576..45f19716687e 100644
--- a/drivers/net/wireless/mwifiex/11n.c
+++ b/drivers/net/wireless/mwifiex/11n.c
@@ -250,7 +250,8 @@ int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
  *      - Setting HT Tx capability and HT Tx information fields
  *      - Ensuring correct endian-ness
  */
-int mwifiex_cmd_11n_cfg(struct host_cmd_ds_command *cmd, u16 cmd_action,
+int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv,
+			struct host_cmd_ds_command *cmd, u16 cmd_action,
 			struct mwifiex_ds_11n_tx_cfg *txcfg)
 {
 	struct host_cmd_ds_11n_cfg *htcfg = &cmd->params.htcfg;
@@ -260,6 +261,10 @@ int mwifiex_cmd_11n_cfg(struct host_cmd_ds_command *cmd, u16 cmd_action,
 	htcfg->action = cpu_to_le16(cmd_action);
 	htcfg->ht_tx_cap = cpu_to_le16(txcfg->tx_htcap);
 	htcfg->ht_tx_info = cpu_to_le16(txcfg->tx_htinfo);
+
+	if (priv->adapter->is_hw_11ac_capable)
+		htcfg->misc_config = cpu_to_le16(txcfg->misc_config);
+
 	return 0;
 }
 
diff --git a/drivers/net/wireless/mwifiex/11n.h b/drivers/net/wireless/mwifiex/11n.h
index 29a4c02479d6..375db01442bf 100644
--- a/drivers/net/wireless/mwifiex/11n.h
+++ b/drivers/net/wireless/mwifiex/11n.h
@@ -28,9 +28,9 @@ int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
 			  struct host_cmd_ds_command *resp);
 int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
 			      struct host_cmd_ds_command *resp);
-int mwifiex_cmd_11n_cfg(struct host_cmd_ds_command *cmd, u16 cmd_action,
+int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv,
+			struct host_cmd_ds_command *cmd, u16 cmd_action,
 			struct mwifiex_ds_11n_tx_cfg *txcfg);