1 files changed, 465 insertions, 282 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 3d9443b9bec1..87a2e40972ba 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -64,7 +64,8 @@ MODULE_LICENSE("GPL");
  *
  * default: bt_coex_active = true (BT_COEX_ENABLE)
  */
-static bool bt_coex_active = true;
+bool bt_coex_active = true;
+EXPORT_SYMBOL_GPL(bt_coex_active);
 module_param(bt_coex_active, bool, S_IRUGO);
 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist");
 
@@ -146,6 +147,10 @@ u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid)
         int i;
         u8 ind = ant;
 
+        if (priv->band == IEEE80211_BAND_2GHZ &&
+            priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)
+                return 0;
+
         for (i = 0; i < RATE_ANT_NUM - 1; i++) {
                 ind = (ind + 1) < RATE_ANT_NUM ?  ind + 1 : 0;
                 if (valid & BIT(ind))
@@ -186,27 +191,27 @@ EXPORT_SYMBOL(iwl_alloc_all);
 /*
  * QoS  support
 */
-static void iwl_update_qos(struct iwl_priv *priv)
+static void iwl_update_qos(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
 {
         if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                 return;
 
-        priv->qos_data.def_qos_parm.qos_flags = 0;
+        ctx->qos_data.def_qos_parm.qos_flags = 0;
 
-        if (priv->qos_data.qos_active)
-                priv->qos_data.def_qos_parm.qos_flags |=
+        if (ctx->qos_data.qos_active)
+                ctx->qos_data.def_qos_parm.qos_flags |=
                         QOS_PARAM_FLG_UPDATE_EDCA_MSK;
 
-        if (priv->current_ht_config.is_ht)
-                priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
+        if (ctx->ht.enabled)
+                ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
 
         IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
-                      priv->qos_data.qos_active,
-                      priv->qos_data.def_qos_parm.qos_flags);
+                      ctx->qos_data.qos_active,
+                      ctx->qos_data.def_qos_parm.qos_flags);
 
-        iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM,
+        iwl_send_cmd_pdu_async(priv, ctx->qos_cmd,
                                sizeof(struct iwl_qosparam_cmd),
-                               &priv->qos_data.def_qos_parm, NULL);
+                               &ctx->qos_data.def_qos_parm, NULL);
 }
 
 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
@@ -436,15 +441,15 @@ static bool is_single_rx_stream(struct iwl_priv *priv)
                priv->current_ht_config.single_chain_sufficient;
 }
 
-static u8 iwl_is_channel_extension(struct iwl_priv *priv,
-                                   enum ieee80211_band band,
-                                   u16 channel, u8 extension_chan_offset)
+static bool iwl_is_channel_extension(struct iwl_priv *priv,
+                                     enum ieee80211_band band,
+                                     u16 channel, u8 extension_chan_offset)
 {
         const struct iwl_channel_info *ch_info;
 
         ch_info = iwl_get_channel_info(priv, band, channel);
         if (!is_channel_valid(ch_info))
-                return 0;
+                return false;
 
         if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
                 return !(ch_info->ht40_extension_channel &
@@ -453,31 +458,31 @@ static u8 iwl_is_channel_extension(struct iwl_priv *priv,
                 return !(ch_info->ht40_extension_channel &
                                         IEEE80211_CHAN_NO_HT40MINUS);
 
-        return 0;
+        return false;
 }
 
-u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
-                         struct ieee80211_sta_ht_cap *sta_ht_inf)
+bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
+                            struct iwl_rxon_context *ctx,
+                            struct ieee80211_sta_ht_cap *ht_cap)
 {
-        struct iwl_ht_config *ht_conf = &priv->current_ht_config;
-
-        if (!ht_conf->is_ht || !ht_conf->is_40mhz)
-                return 0;
+        if (!ctx->ht.enabled || !ctx->ht.is_40mhz)
+                return false;
 
-        /* We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40
+        /*
+         * We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40
          * the bit will not set if it is pure 40MHz case
          */
-        if (sta_ht_inf) {
-                if (!sta_ht_inf->ht_supported)
-                        return 0;
-        }
+        if (ht_cap && !ht_cap->ht_supported)
+                return false;
+
 #ifdef CONFIG_IWLWIFI_DEBUGFS
         if (priv->disable_ht40)
-                return 0;
+                return false;
 #endif
+
         return iwl_is_channel_extension(priv, priv->band,
-                        le16_to_cpu(priv->staging_rxon.channel),
-                        ht_conf->extension_chan_offset);
+                        le16_to_cpu(ctx->staging.channel),
+                        ctx->ht.extension_chan_offset);
 }
 EXPORT_SYMBOL(iwl_is_ht40_tx_allowed);
 
@@ -495,55 +500,64 @@ static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
         return new_val;
 }
 
-int iwl_send_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif)
+int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
 {
         u64 tsf;
         s32 interval_tm, rem;
         struct ieee80211_conf *conf = NULL;
         u16 beacon_int;
+        struct ieee80211_vif *vif = ctx->vif;
 
         conf = ieee80211_get_hw_conf(priv->hw);
 
         lockdep_assert_held(&priv->mutex);
 
-        memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
+        memset(&ctx->timing, 0, sizeof(struct iwl_rxon_time_cmd));
 
-        priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
-        priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval);
+        ctx->timing.timestamp = cpu_to_le64(priv->timestamp);
+        ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval);
 
-        beacon_int = vif->bss_conf.beacon_int;
+        beacon_int = vif ? vif->bss_conf.beacon_int : 0;
 
-        if (vif->type == NL80211_IFTYPE_ADHOC) {
-                /* TODO: we need to get atim_window from upper stack
-                 * for now we set to 0 */
-                priv->rxon_timing.atim_window = 0;
-        } else {
-                priv->rxon_timing.atim_window = 0;
-        }
+        /*
+         * TODO: For IBSS we need to get atim_window from mac80211,
+         *       for now just always use 0
+         */
+        ctx->timing.atim_window = 0;
 
-        beacon_int = iwl_adjust_beacon_interval(beacon_int,
+        if (ctx->ctxid == IWL_RXON_CTX_PAN &&
+            (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION)) {
+                ctx->timing.beacon_interval =
+                        priv->contexts[IWL_RXON_CTX_BSS].timing.beacon_interval;
+                beacon_int = le16_to_cpu(ctx->timing.beacon_interval);
+        } else {
+                beacon_int = iwl_adjust_beacon_interval(beacon_int,
                                 priv->hw_params.max_beacon_itrvl * TIME_UNIT);
-        priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int);
+                ctx->timing.beacon_interval = cpu_to_le16(beacon_int);
+        }
 
         tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */
         interval_tm = beacon_int * TIME_UNIT;
         rem = do_div(tsf, interval_tm);
-        priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem);
+        ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem);
+
+        ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1;
 
         IWL_DEBUG_ASSOC(priv,
                         "beacon interval %d beacon timer %d beacon tim %d\n",
-                        le16_to_cpu(priv->rxon_timing.beacon_interval),
-                        le32_to_cpu(priv->rxon_timing.beacon_init_val),
-                        le16_to_cpu(priv->rxon_timing.atim_window));
+                        le16_to_cpu(ctx->timing.beacon_interval),
+                        le32_to_cpu(ctx->timing.beacon_init_val),
+                        le16_to_cpu(ctx->timing.atim_window));
 
-        return iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
-                                sizeof(priv->rxon_timing), &priv->rxon_timing);
+        return iwl_send_cmd_pdu(priv, ctx->rxon_timing_cmd,
+                                sizeof(ctx->timing), &ctx->timing);
 }
 EXPORT_SYMBOL(iwl_send_rxon_timing);
 
-void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
+void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
+                           int hw_decrypt)
 {
-        struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+        struct iwl_rxon_cmd *rxon = &ctx->staging;
 
         if (hw_decrypt)
                 rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
@@ -560,11 +574,11 @@ EXPORT_SYMBOL(iwl_set_rxon_hwcrypto);
  * be #ifdef'd out once the driver is stable and folks aren't actively
  * making changes
  */
-int iwl_check_rxon_cmd(struct iwl_priv *priv)
+int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
 {
         int error = 0;
         int counter = 1;
-        struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+        struct iwl_rxon_cmd *rxon = &ctx->staging;
 
         if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
                 error |= le32_to_cpu(rxon->flags &
@@ -636,66 +650,83 @@ EXPORT_SYMBOL(iwl_check_rxon_cmd);
  * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
  * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
  */
-int iwl_full_rxon_required(struct iwl_priv *priv)
+int iwl_full_rxon_required(struct iwl_priv *priv,
+                           struct iwl_rxon_context *ctx)
 {
+        const struct iwl_rxon_cmd *staging = &ctx->staging;
+        const struct iwl_rxon_cmd *active = &ctx->active;
+
+#define CHK(cond)                                                       \
+        if ((cond)) {                                                   \
+                IWL_DEBUG_INFO(priv, "need full RXON - " #cond "\n");   \
+                return 1;                                               \
+        }
+
+#define CHK_NEQ(c1, c2)                                         \
+        if ((c1) != (c2)) {                                     \
+                IWL_DEBUG_INFO(priv, "need full RXON - "        \
+                               #c1 " != " #c2 " - %d != %d\n",  \
+                               (c1), (c2));                     \
+                return 1;                                       \
+        }
 
         /* These items are only settable from the full RXON command */
-        if (!(iwl_is_associated(priv)) ||
-            compare_ether_addr(priv->staging_rxon.bssid_addr,
-                               priv->active_rxon.bssid_addr) ||
-            compare_ether_addr(priv->staging_rxon.node_addr,
-                               priv->active_rxon.node_addr) ||
-            compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
-                               priv->active_rxon.wlap_bssid_addr) ||
-            (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
-            (priv->staging_rxon.channel != priv->active_rxon.channel) ||
-            (priv->staging_rxon.air_propagation !=
-             priv->active_rxon.air_propagation) ||
-            (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
-             priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
-            (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
-             priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
-            (priv->staging_rxon.ofdm_ht_triple_stream_basic_rates !=
-             priv->active_rxon.ofdm_ht_triple_stream_basic_rates) ||
-            (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
-                return 1;
+        CHK(!iwl_is_associated_ctx(ctx));
+        CHK(compare_ether_addr(staging->bssid_addr, active->bssid_addr));
+        CHK(compare_ether_addr(staging->node_addr, active->node_addr));
+        CHK(compare_ether_addr(staging->wlap_bssid_addr,
+                                active->wlap_bssid_addr));
+        CHK_NEQ(staging->dev_type, active->dev_type);
+        CHK_NEQ(staging->channel, active->channel);
+        CHK_NEQ(staging->air_propagation, active->air_propagation);
+        CHK_NEQ(staging->ofdm_ht_single_stream_basic_rates,
+                active->ofdm_ht_single_stream_basic_rates);
+        CHK_NEQ(staging->ofdm_ht_dual_stream_basic_rates,
+                active->ofdm_ht_dual_stream_basic_rates);
+        CHK_NEQ(staging->ofdm_ht_triple_stream_basic_rates,
+                active->ofdm_ht_triple_stream_basic_rates);
+        CHK_NEQ(staging->assoc_id, active->assoc_id);
 
         /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
          * be updated with the RXON_ASSOC command -- however only some
          * flag transitions are allowed using RXON_ASSOC */
 
         /* Check if we are not switching bands */
-        if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
-            (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
-                return 1;
+        CHK_NEQ(staging->flags & RXON_FLG_BAND_24G_MSK,
+                active->flags & RXON_FLG_BAND_24G_MSK);
 
         /* Check if we are switching association toggle */
-        if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
-                (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
-                return 1;
+        CHK_NEQ(staging->filter_flags & RXON_FILTER_ASSOC_MSK,
+                active->filter_flags & RXON_FILTER_ASSOC_MSK);
+
+#undef CHK
+#undef CHK_NEQ
 
         return 0;
 }
 EXPORT_SYMBOL(iwl_full_rxon_required);
 
-u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv)
+u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
+                            struct iwl_rxon_context *ctx)
 {
         /*
          * Assign the lowest rate -- should really get this from
          * the beacon skb from mac80211.
          */
-        if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
+        if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK)
                 return IWL_RATE_1M_PLCP;
         else
                 return IWL_RATE_6M_PLCP;
 }
 EXPORT_SYMBOL(iwl_rate_get_lowest_plcp);
 
-void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf)
+static void _iwl_set_rxon_ht(struct iwl_priv *priv,
+                             struct iwl_ht_config *ht_conf,
+                             struct iwl_rxon_context *ctx)
 {
-        struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+        struct iwl_rxon_cmd *rxon = &ctx->staging;
 
-        if (!ht_conf->is_ht) {
+        if (!ctx->ht.enabled) {
                 rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
                         RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK |
                         RXON_FLG_HT40_PROT_MSK |
@@ -703,22 +734,22 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf)
                 return;
         }
 
-        /* FIXME: if the definition of ht_protection changed, the "translation"
+        /* FIXME: if the definition of ht.protection changed, the "translation"
          * will be needed for rxon->flags
          */
-        rxon->flags |= cpu_to_le32(ht_conf->ht_protection << RXON_FLG_HT_OPERATING_MODE_POS);
+        rxon->flags |= cpu_to_le32(ctx->ht.protection << RXON_FLG_HT_OPERATING_MODE_POS);
 
         /* Set up channel bandwidth:
          * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */
         /* clear the HT channel mode before set the mode */
         rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
                          RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
-        if (iwl_is_ht40_tx_allowed(priv, NULL)) {
+        if (iwl_is_ht40_tx_allowed(priv, ctx, NULL)) {
                 /* pure ht40 */
-                if (ht_conf->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) {
+                if (ctx->ht.protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) {
                         rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40;
                         /* Note: control channel is opposite of extension channel */
-                        switch (ht_conf->extension_chan_offset) {
+                        switch (ctx->ht.extension_chan_offset) {
                         case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
                                 rxon->flags &= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
                                 break;
@@ -728,7 +759,7 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf)
                         }
                 } else {
                         /* Note: control channel is opposite of extension channel */
-                        switch (ht_conf->extension_chan_offset) {
+                        switch (ctx->ht.extension_chan_offset) {
                         case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
                                 rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
                                 rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED;
@@ -749,12 +780,20 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf)
         }
 
         if (priv->cfg->ops->hcmd->set_rxon_chain)
-                priv->cfg->ops->hcmd->set_rxon_chain(priv);
+                priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
 
         IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X "
                         "extension channel offset 0x%x\n",
-                        le32_to_cpu(rxon->flags), ht_conf->ht_protection,
-                        ht_conf->extension_chan_offset);
+                        le32_to_cpu(rxon->flags), ctx->ht.protection,
+                        ctx->ht.extension_chan_offset);
+}
+
+void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf)
+{
+        struct iwl_rxon_context *ctx;
+
+        for_each_context(priv, ctx)
+                _iwl_set_rxon_ht(priv, ht_conf, ctx);
 }
 EXPORT_SYMBOL(iwl_set_rxon_ht);
 
@@ -775,6 +814,14 @@ EXPORT_SYMBOL(iwl_set_rxon_ht);
  */
 static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
 {
+        if (priv->cfg->advanced_bt_coexist && (priv->bt_full_concurrent ||
+            priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
+                /*
+                 * only use chain 'A' in bt high traffic load or
+                 * full concurrency mode
+                 */
+                return IWL_NUM_RX_CHAINS_SINGLE;
+        }
         /* # of Rx chains to use when expecting MIMO. */
         if (is_single_rx_stream(priv))
                 return IWL_NUM_RX_CHAINS_SINGLE;
@@ -819,7 +866,7 @@ static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
  * Selects how many and which Rx receivers/antennas/chains to use.
  * This should not be used for scan command ... it puts data in wrong place.
  */
-void iwl_set_rxon_chain(struct iwl_priv *priv)
+void iwl_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
 {
         bool is_single = is_single_rx_stream(priv);
         bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
@@ -831,11 +878,20 @@ void iwl_set_rxon_chain(struct iwl_priv *priv)
          * Before first association, we assume all antennas are connected.
          * Just after first association, iwl_chain_noise_calibration()
          *    checks which antennas actually *are* connected. */
-         if (priv->chain_noise_data.active_chains)
+        if (priv->chain_noise_data.active_chains)
                 active_chains = priv->chain_noise_data.active_chains;
         else
                 active_chains = priv->hw_params.valid_rx_ant;
 
+        if (priv->cfg->advanced_bt_coexist && (priv->bt_full_concurrent ||
+            priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
+                /*
+                 * only use chain 'A' in bt high traffic load or
+                 * full concurrency mode
+                 */
+                active_chains = first_antenna(active_chains);
+        }
+
         rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
 
         /* How many receivers should we use? */
@@ -856,15 +912,15 @@ void iwl_set_rxon_chain(struct iwl_priv *priv)
         rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
         rx_chain |= idle_rx_cnt  << RXON_RX_CHAIN_CNT_POS;
 
-        priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain);
+        ctx->staging.rx_chain = cpu_to_le16(rx_chain);
 
         if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)
-                priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
+                ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
         else
-                priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
+                ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
 
         IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n",
-                        priv->staging_rxon.rx_chain,
+                        ctx->staging.rx_chain,
                         active_rx_cnt, idle_rx_cnt);
 
         WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||
@@ -872,39 +928,41 @@ void iwl_set_rxon_chain(struct iwl_priv *priv)
 }
 EXPORT_SYMBOL(iwl_set_rxon_chain);
 
-/* Return valid channel */
+/* Return valid, unused, channel for a passive scan to reset the RF */
 u8 iwl_get_single_channel_number(struct iwl_priv *priv,
-                                  enum ieee80211_band band)
+                                 enum ieee80211_band band)
 {
         const struct iwl_channel_info *ch_info;
         int i;
         u8 channel = 0;
+        u8 min, max;
+        struct iwl_rxon_context *ctx;
 
-        /* only scan single channel, good enough to reset the RF */
-        /* pick the first valid not in-use channel */
         if (band == IEEE80211_BAND_5GHZ) {
-                for (i = 14; i < priv->channel_count; i++) {
-                        if (priv->channel_info[i].channel !=
-                            le16_to_cpu(priv->staging_rxon.channel)) {
-                                channel = priv->channel_info[i].channel;
-                                ch_info = iwl_get_channel_info(priv,
-                                        band, channel);
-                                if (is_channel_valid(ch_info))
-                                        break;
-                        }
-                }
+                min = 14;
+                max = priv->channel_count;
         } else {
-                for (i = 0; i < 14; i++) {
-                        if (priv->channel_info[i].channel !=
-                            le16_to_cpu(priv->staging_rxon.channel)) {
-                                        channel =
-                                                priv->channel_info[i].channel;
-                                        ch_info = iwl_get_channel_info(priv,
-                                                band, channel);
-                                        if (is_channel_valid(ch_info))
-                                                break;
-                        }
+                min = 0;
+                max = 14;
+        }
+
+        for (i = min; i < max; i++) {
+                bool busy = false;
+
+                for_each_context(priv, ctx) {
+                        busy = priv->channel_info[i].channel ==
+                                le16_to_cpu(ctx->staging.channel);
+                        if (busy)
+                                break;
                 }
+
+                if (busy)
+                        continue;
+
+                channel = priv->channel_info[i].channel;
+                ch_info = iwl_get_channel_info(priv, band, channel);
+                if (is_channel_valid(ch_info))
+                        break;
         }
 
         return channel;
@@ -915,25 +973,24 @@ EXPORT_SYMBOL(iwl_get_single_channel_number);
  * iwl_set_rxon_channel - Set the band and channel values in staging RXON
  * @ch: requested channel as a pointer to struct ieee80211_channel
 
- * In addition to setting the staging RXON, priv->band is also set.
- *
  * NOTE:  Does not commit to the hardware; it sets appropriate bit fields
  * in the staging RXON flag structure based on the ch->band
  */
-int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch)
+int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
+                         struct iwl_rxon_context *ctx)
 {
         enum ieee80211_band band = ch->band;
         u16 channel = ch->hw_value;
 
-        if ((le16_to_cpu(priv->staging_rxon.channel) == channel) &&
+        if ((le16_to_cpu(ctx->staging.channel) == channel) &&
             (priv->band == band))
                 return 0;
 
-        priv->staging_rxon.channel = cpu_to_le16(channel);
+        ctx->staging.channel = cpu_to_le16(channel);
         if (band == IEEE80211_BAND_5GHZ)
-                priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
+                ctx->staging.flags &= ~RXON_FLG_BAND_24G_MSK;
         else
-                priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
+                ctx->staging.flags |= RXON_FLG_BAND_24G_MSK;
 
         priv->band = band;
 
@@ -944,24 +1001,25 @@ int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch)
 EXPORT_SYMBOL(iwl_set_rxon_channel);
 
 void iwl_set_flags_for_band(struct iwl_priv *priv,
+                            struct iwl_rxon_context *ctx,
                             enum ieee80211_band band,
                             struct ieee80211_vif *vif)
 {
         if (band == IEEE80211_BAND_5GHZ) {
-                priv->staging_rxon.flags &=
+                ctx->staging.flags &=
                     ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
                       | RXON_FLG_CCK_MSK);
-                priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+                ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
         } else {
                 /* Copied from iwl_post_associate() */
                 if (vif && vif->bss_conf.use_short_slot)
-                        priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+                        ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
                 else
-                        priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+                        ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
 
-                priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
-                priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
-                priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
+                ctx->staging.flags |= RXON_FLG_BAND_24G_MSK;
+                ctx->staging.flags |= RXON_FLG_AUTO_DETECT_MSK;
+                ctx->staging.flags &= ~RXON_FLG_CCK_MSK;
         }
 }
 EXPORT_SYMBOL(iwl_set_flags_for_band);
@@ -970,35 +1028,34 @@ EXPORT_SYMBOL(iwl_set_flags_for_band);
  * initialize rxon structure with default values from eeprom
  */
 void iwl_connection_init_rx_config(struct iwl_priv *priv,
-                                   struct ieee80211_vif *vif)
+                                   struct iwl_rxon_context *ctx)
 {
         const struct iwl_channel_info *ch_info;
-        enum nl80211_iftype type = NL80211_IFTYPE_STATION;
 
-        if (vif)
-                type = vif->type;
+        memset(&ctx->staging, 0, sizeof(ctx->staging));
 
-        memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
-
-        switch (type) {
+        if (!ctx->vif) {
+                ctx->staging.dev_type = ctx->unused_devtype;
+        } else switch (ctx->vif->type) {
         case NL80211_IFTYPE_AP:
-                priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
+                ctx->staging.dev_type = ctx->ap_devtype;
                 break;
 
         case NL80211_IFTYPE_STATION:
-                priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
-                priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
+                ctx->staging.dev_type = ctx->station_devtype;
+                ctx->staging.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
                 break;
 
         case NL80211_IFTYPE_ADHOC:
-                priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
-                priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
-                priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
+                ctx->staging.dev_type = ctx->ibss_devtype;
+                ctx->staging.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
+                ctx->staging.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
                                                   RXON_FILTER_ACCEPT_GRP_MSK;
                 break;
 
         default:
-                IWL_ERR(priv, "Unsupported interface type %d\n", type);
+                IWL_ERR(priv, "Unsupported interface type %d\n",
+                        ctx->vif->type);
                 break;
         }
 
@@ -1006,37 +1063,36 @@ void iwl_connection_init_rx_config(struct iwl_priv *priv,
         /* TODO:  Figure out when short_preamble would be set and cache from
          * that */
         if (!hw_to_local(priv->hw)->short_preamble)
-                priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+                ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
         else
-                priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+                ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
 #endif
 
         ch_info = iwl_get_channel_info(priv, priv->band,
-                                       le16_to_cpu(priv->active_rxon.channel));
+                                       le16_to_cpu(ctx->active.channel));
 
         if (!ch_info)
                 ch_info = &priv->channel_info[0];
 
-        priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
+        ctx->staging.channel = cpu_to_le16(ch_info->channel);
         priv->band = ch_info->band;
 
-        iwl_set_flags_for_band(priv, priv->band, vif);
+        iwl_set_flags_for_band(priv, ctx, priv->band, ctx->vif);
 
-        priv->staging_rxon.ofdm_basic_rates =
+        ctx->staging.ofdm_basic_rates =
             (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
-        priv->staging_rxon.cck_basic_rates =
+        ctx->staging.cck_basic_rates =
             (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
 
         /* clear both MIX and PURE40 mode flag */
-        priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED |
+        ctx->staging.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED |
                                         RXON_FLG_CHANNEL_MODE_PURE_40);
+        if (ctx->vif)
+                memcpy(ctx->staging.node_addr, ctx->vif->addr, ETH_ALEN);
 
-        if (vif)
-                memcpy(priv->staging_rxon.node_addr, vif->addr, ETH_ALEN);
-
-        priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
-        priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
-        priv->staging_rxon.ofdm_ht_triple_stream_basic_rates = 0xff;
+        ctx->staging.ofdm_ht_single_stream_basic_rates = 0xff;
+        ctx->staging.ofdm_ht_dual_stream_basic_rates = 0xff;
+        ctx->staging.ofdm_ht_triple_stream_basic_rates = 0xff;
 }
 EXPORT_SYMBOL(iwl_connection_init_rx_config);
 
@@ -1044,6 +1100,7 @@ void iwl_set_rate(struct iwl_priv *priv)
 {
         const struct ieee80211_supported_band *hw = NULL;
         struct ieee80211_rate *rate;
+        struct iwl_rxon_context *ctx;
         int i;
 
         hw = iwl_get_hw_mode(priv, priv->band);
@@ -1062,21 +1119,29 @@ void iwl_set_rate(struct iwl_priv *priv)
 
         IWL_DEBUG_RATE(priv, "Set active_rate = %0x\n", priv->active_rate);
 
-        priv->staging_rxon.cck_basic_rates =
-            (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
+        for_each_context(priv, ctx) {
+                ctx->staging.cck_basic_rates =
+                    (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
 
-        priv->staging_rxon.ofdm_basic_rates =
-           (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+                ctx->staging.ofdm_basic_rates =
+                   (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+        }
 }
 EXPORT_SYMBOL(iwl_set_rate);
 
 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
 {
+        /*
+         * MULTI-FIXME
+         * See iwl_mac_channel_switch.
+         */
+        struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
+
         if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                 return;
 
         if (priv->switch_rxon.switch_in_progress) {
-                ieee80211_chswitch_done(priv->vif, is_success);
+                ieee80211_chswitch_done(ctx->vif, is_success);
                 mutex_lock(&priv->mutex);
                 priv->switch_rxon.switch_in_progress = false;
                 mutex_unlock(&priv->mutex);
@@ -1087,14 +1152,19 @@ EXPORT_SYMBOL(iwl_chswitch_done);
 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 {
         struct iwl_rx_packet *pkt = rxb_addr(rxb);
-        struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
         struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
+        /*
+         * MULTI-FIXME
+         * See iwl_mac_channel_switch.
+         */
+        struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
+        struct iwl_rxon_cmd *rxon = (void *)&ctx->active;
 
         if (priv->switch_rxon.switch_in_progress) {
                 if (!le32_to_cpu(csa->status) &&
                     (csa->channel == priv->switch_rxon.channel)) {
                         rxon->channel = csa->channel;
-                        priv->staging_rxon.channel = csa->channel;
+                        ctx->staging.channel = csa->channel;
                         IWL_DEBUG_11H(priv, "CSA notif: channel %d\n",
                               le16_to_cpu(csa->channel));
                         iwl_chswitch_done(priv, true);
@@ -1108,9 +1178,10 @@ void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 EXPORT_SYMBOL(iwl_rx_csa);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-void iwl_print_rx_config_cmd(struct iwl_priv *priv)
+void iwl_print_rx_config_cmd(struct iwl_priv *priv,
+                             struct iwl_rxon_context *ctx)
 {
-        struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+        struct iwl_rxon_cmd *rxon = &ctx->staging;
 
         IWL_DEBUG_RADIO(priv, "RX CONFIG:\n");
         iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
@@ -1150,7 +1221,8 @@ void iwl_irq_handle_error(struct iwl_priv *priv)
         priv->cfg->ops->lib->dump_nic_event_log(priv, false, NULL, false);
 #ifdef CONFIG_IWLWIFI_DEBUG
         if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS)
-                iwl_print_rx_config_cmd(priv);
+                iwl_print_rx_config_cmd(priv,
+                                        &priv->contexts[IWL_RXON_CTX_BSS]);
 #endif
 
         wake_up_interruptible(&priv->wait_command_queue);
@@ -1518,6 +1590,7 @@ int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
                            const struct ieee80211_tx_queue_params *params)
 {
         struct iwl_priv *priv = hw->priv;
+        struct iwl_rxon_context *ctx;
         unsigned long flags;
         int q;
 
@@ -1537,13 +1610,21 @@ int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 
         spin_lock_irqsave(&priv->lock, flags);
 
-        priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
-        priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
-        priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
-        priv->qos_data.def_qos_parm.ac[q].edca_txop =
-                        cpu_to_le16((params->txop * 32));
+        /*
+         * MULTI-FIXME
+         * This may need to be done per interface in nl80211/cfg80211/mac80211.
+         */
+        for_each_context(priv, ctx) {
+                ctx->qos_data.def_qos_parm.ac[q].cw_min =
+                        cpu_to_le16(params->cw_min);
+                ctx->qos_data.def_qos_parm.ac[q].cw_max =
+                        cpu_to_le16(params->cw_max);
+                ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
+                ctx->qos_data.def_qos_parm.ac[q].edca_txop =
+                                cpu_to_le16((params->txop * 32));
 
-        priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
+                ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0;
+        }
 
         spin_unlock_irqrestore(&priv->lock, flags);
 
@@ -1566,15 +1647,16 @@ static void iwl_ht_conf(struct iwl_priv *priv,
         struct iwl_ht_config *ht_conf = &priv->current_ht_config;
         struct ieee80211_sta *sta;
         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+        struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
 
         IWL_DEBUG_MAC80211(priv, "enter:\n");
 
-        if (!ht_conf->is_ht)
+        if (!ctx->ht.enabled)
                 return;
 
-        ht_conf->ht_protection =
+        ctx->ht.protection =
                 bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
-        ht_conf->non_GF_STA_present =
+        ctx->ht.non_gf_sta_present =
                 !!(bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
 
         ht_conf->single_chain_sufficient = false;
@@ -1618,18 +1700,20 @@ static void iwl_ht_conf(struct iwl_priv *priv,
         IWL_DEBUG_MAC80211(priv, "leave\n");
 }
 
-static inline void iwl_set_no_assoc(struct iwl_priv *priv)
+static inline void iwl_set_no_assoc(struct iwl_priv *priv,
+                                    struct ieee80211_vif *vif)
 {
+        struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
+
         iwl_led_disassociate(priv);
         /*
          * inform the ucode that there is no longer an
          * association and that no more packets should be
          * sent
          */
-        priv->staging_rxon.filter_flags &=
-                ~RXON_FILTER_ASSOC_MSK;
-        priv->staging_rxon.assoc_id = 0;
-        iwlcore_commit_rxon(priv);
+        ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+        ctx->staging.assoc_id = 0;
+        iwlcore_commit_rxon(priv, ctx);
 }
 
 static int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
@@ -1640,6 +1724,14 @@ static int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
 
         IWL_DEBUG_MAC80211(priv, "enter\n");
 
+        lockdep_assert_held(&priv->mutex);
+
+        if (!priv->beacon_ctx) {
+                IWL_ERR(priv, "update beacon but no beacon context!\n");
+                dev_kfree_skb(skb);
+                return -EINVAL;
+        }
+
         if (!iwl_is_ready_rf(priv)) {
                 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
                 return -EIO;
@@ -1658,7 +1750,7 @@ static int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
         IWL_DEBUG_MAC80211(priv, "leave\n");
         spin_unlock_irqrestore(&priv->lock, flags);
 
-        priv->cfg->ops->lib->post_associate(priv, priv->vif);
+        priv->cfg->ops->lib->post_associate(priv, priv->beacon_ctx->vif);
 
         return 0;
 }
@@ -1669,6 +1761,7 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
                           u32 changes)
 {
         struct iwl_priv *priv = hw->priv;
+        struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
         int ret;
 
         IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes);
@@ -1682,11 +1775,23 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
                 unsigned long flags;
 
                 spin_lock_irqsave(&priv->lock, flags);
-                priv->qos_data.qos_active = bss_conf->qos;
-                iwl_update_qos(priv);
+                ctx->qos_data.qos_active = bss_conf->qos;
+                iwl_update_qos(priv, ctx);
                 spin_unlock_irqrestore(&priv->lock, flags);
         }
 
+        if (changes & BSS_CHANGED_BEACON_ENABLED) {
+                /*
+                 * the add_interface code must make sure we only ever
+                 * have a single interface that could be beaconing at
+                 * any time.
+                 */
+                if (vif->bss_conf.enable_beacon)
+                        priv->beacon_ctx = ctx;
+                else
+                        priv->beacon_ctx = NULL;
+        }
+
         if (changes & BSS_CHANGED_BEACON && vif->type == NL80211_IFTYPE_AP) {
                 dev_kfree_skb(priv->ibss_beacon);
                 priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
@@ -1713,13 +1818,13 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
 
                 /* mac80211 only sets assoc when in STATION mode */
                 if (vif->type == NL80211_IFTYPE_ADHOC || bss_conf->assoc) {
-                        memcpy(priv->staging_rxon.bssid_addr,
+                        memcpy(ctx->staging.bssid_addr,
                                bss_conf->bssid, ETH_ALEN);
 
                         /* currently needed in a few places */
                         memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
                 } else {
-                        priv->staging_rxon.filter_flags &=
+                        ctx->staging.filter_flags &=
                                 ~RXON_FILTER_ASSOC_MSK;
                 }
 
@@ -1742,21 +1847,21 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
                 IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n",
                                    bss_conf->use_short_preamble);
                 if (bss_conf->use_short_preamble)
-                        priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+                        ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
                 else
-                        priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+                        ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
         }
 
         if (changes & BSS_CHANGED_ERP_CTS_PROT) {
                 IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", bss_conf->use_cts_prot);
                 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
-                        priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
+                        ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK;
                 else
-                        priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
+                        ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
                 if (bss_conf->use_cts_prot)
-                        priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN;
+                        ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
                 else
-                        priv->staging_rxon.flags &= ~RXON_FLG_SELF_CTS_EN;
+                        ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
         }
 
         if (changes & BSS_CHANGED_BASIC_RATES) {
@@ -1766,12 +1871,12 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
                  * like this here:
                  *
                 if (A-band)
-                        priv->staging_rxon.ofdm_basic_rates =
+                        ctx->staging.ofdm_basic_rates =
                                 bss_conf->basic_rates;
                 else
-                        priv->staging_rxon.ofdm_basic_rates =
+                        ctx->staging.ofdm_basic_rates =
                                 bss_conf->basic_rates >> 4;
-                        priv->staging_rxon.cck_basic_rates =
+                        ctx->staging.cck_basic_rates =
                                 bss_conf->basic_rates & 0xF;
                  */
         }
@@ -1780,7 +1885,7 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
                 iwl_ht_conf(priv, vif);
 
                 if (priv->cfg->ops->hcmd->set_rxon_chain)
-                        priv->cfg->ops->hcmd->set_rxon_chain(priv);
+                        priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
         }
 
         if (changes & BSS_CHANGED_ASSOC) {
@@ -1793,29 +1898,29 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
                         if (!iwl_is_rfkill(priv))
                                 priv->cfg->ops->lib->post_associate(priv, vif);
                 } else
-                        iwl_set_no_assoc(priv);
+                        iwl_set_no_assoc(priv, vif);
         }
 
-        if (changes && iwl_is_associated(priv) && bss_conf->aid) {
+        if (changes && iwl_is_associated_ctx(ctx) && bss_conf->aid) {
                 IWL_DEBUG_MAC80211(priv, "Changes (%#x) while associated\n",
                                    changes);
-                ret = iwl_send_rxon_assoc(priv);
+                ret = iwl_send_rxon_assoc(priv, ctx);
                 if (!ret) {
                         /* Sync active_rxon with latest change. */
-                        memcpy((void *)&priv->active_rxon,
-                                &priv->staging_rxon,
+                        memcpy((void *)&ctx->active,
+                                &ctx->staging,
                                 sizeof(struct iwl_rxon_cmd));
                 }
         }
 
         if (changes & BSS_CHANGED_BEACON_ENABLED) {
                 if (vif->bss_conf.enable_beacon) {
-                        memcpy(priv->staging_rxon.bssid_addr,
+                        memcpy(ctx->staging.bssid_addr,
                                bss_conf->bssid, ETH_ALEN);
                         memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
                         iwlcore_config_ap(priv, vif);
                 } else
-                        iwl_set_no_assoc(priv);
+                        iwl_set_no_assoc(priv, vif);
         }
 
         if (changes & BSS_CHANGED_IBSS) {
@@ -1827,6 +1932,12 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
                                 bss_conf->bssid);
         }
 
+        if (changes & BSS_CHANGED_IDLE &&
+            priv->cfg->ops->hcmd->set_pan_params) {
+                if (priv->cfg->ops->hcmd->set_pan_params(priv))
+                        IWL_ERR(priv, "failed to update PAN params\n");
+        }
+
         mutex_unlock(&priv->mutex);
 
         IWL_DEBUG_MAC80211(priv, "leave\n");
@@ -1835,17 +1946,21 @@ EXPORT_SYMBOL(iwl_bss_info_changed);
 
 static int iwl_set_mode(struct iwl_priv *priv, struct ieee80211_vif *vif)
 {
-        iwl_connection_init_rx_config(priv, vif);
+        struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
+
+        iwl_connection_init_rx_config(priv, ctx);
 
         if (priv->cfg->ops->hcmd->set_rxon_chain)
-                priv->cfg->ops->hcmd->set_rxon_chain(priv);
+                priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
 
-        return iwlcore_commit_rxon(priv);
+        return iwlcore_commit_rxon(priv, ctx);
 }
 
 int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 {
         struct iwl_priv *priv = hw->priv;
+        struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
+        struct iwl_rxon_context *tmp, *ctx = NULL;
         int err = 0;
 
         IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n",
@@ -1858,23 +1973,60 @@ int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
                 goto out;
         }
 
-        if (priv->vif) {
-                IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n");
+        for_each_context(priv, tmp) {
+                u32 possible_modes =
+                        tmp->interface_modes | tmp->exclusive_interface_modes;
+
+                if (tmp->vif) {
+                        /* check if this busy context is exclusive */
+                        if (tmp->exclusive_interface_modes &
+                                                BIT(tmp->vif->type)) {
+                                err = -EINVAL;
+                                goto out;
+                        }
+                        continue;
+                }
+
+                if (!(possible_modes & BIT(vif->type)))
+                        continue;
+
+                /* have maybe usable context w/o interface */
+                ctx = tmp;
+                break;
+        }
+
+        if (!ctx) {
                 err = -EOPNOTSUPP;
                 goto out;
         }
 
-        priv->vif = vif;
+        vif_priv->ctx = ctx;
+        ctx->vif = vif;
+        /*
+         * This variable will be correct only when there's just
+         * a single context, but all code using it is for hardware
+         * that supports only one context.
+         */
         priv->iw_mode = vif->type;
 
         err = iwl_set_mode(priv, vif);
         if (err)
                 goto out_err;
 
+        if (priv->cfg->advanced_bt_coexist &&
+            vif->type == NL80211_IFTYPE_ADHOC) {
+                /*
+                 * pretend to have high BT traffic as long as we
+                 * are operating in IBSS mode, as this will cause
+                 * the rate scaling etc. to behave as intended.
+                 */
+                priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
+        }
+
         goto out;
 
  out_err:
-        priv->vif = NULL;
+        ctx->vif = NULL;
         priv->iw_mode = NL80211_IFTYPE_STATION;
  out:
         mutex_unlock(&priv->mutex);
@@ -1888,26 +2040,36 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw,
                               struct ieee80211_vif *vif)
 {
         struct iwl_priv *priv = hw->priv;
+        struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
         bool scan_completed = false;
 
         IWL_DEBUG_MAC80211(priv, "enter\n");
 
         mutex_lock(&priv->mutex);
 
-        if (iwl_is_ready_rf(priv)) {
-                iwl_scan_cancel_timeout(priv, 100);
-                priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-                iwlcore_commit_rxon(priv);
-        }
-        if (priv->vif == vif) {
-                priv->vif = NULL;
-                if (priv->scan_vif == vif) {
-                        scan_completed = true;
-                        priv->scan_vif = NULL;
-                        priv->scan_request = NULL;
-                }
-                memset(priv->bssid, 0, ETH_ALEN);
+        WARN_ON(ctx->vif != vif);
+        ctx->vif = NULL;
+
+        iwl_scan_cancel_timeout(priv, 100);
+        iwl_set_mode(priv, vif);
+
+        if (priv->scan_vif == vif) {
+                scan_completed = true;
+                priv->scan_vif = NULL;
+                priv->scan_request = NULL;
         }
+
+        /*
+         * When removing the IBSS interface, overwrite the
+         * BT traffic load with the stored one from the last
+         * notification, if any. If this is a device that
+         * doesn't implement this, this has no effect since
+         * both values are the same and zero.
+         */
+        if (vif->type == NL80211_IFTYPE_ADHOC)
+                priv->bt_traffic_load = priv->notif_bt_traffic_load;
+
+        memset(priv->bssid, 0, ETH_ALEN);
         mutex_unlock(&priv->mutex);
 
         if (scan_completed)
@@ -1928,6 +2090,7 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
         struct ieee80211_conf *conf = &hw->conf;
         struct ieee80211_channel *channel = conf->channel;
         struct iwl_ht_config *ht_conf = &priv->current_ht_config;
+        struct iwl_rxon_context *ctx;
         unsigned long flags = 0;
         int ret = 0;
         u16 ch;
@@ -1957,7 +2120,8 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
                  * configured.
                  */
                 if (priv->cfg->ops->hcmd->set_rxon_chain)
-                        priv->cfg->ops->hcmd->set_rxon_chain(priv);
+                        for_each_context(priv, ctx)
+                                priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
         }
 
         /* during scanning mac80211 will delay channel setting until
@@ -1977,39 +2141,49 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
 
                 spin_lock_irqsave(&priv->lock, flags);
 
-                /* Configure HT40 channels */
-                ht_conf->is_ht = conf_is_ht(conf);
-                if (ht_conf->is_ht) {
-                        if (conf_is_ht40_minus(conf)) {
-                                ht_conf->extension_chan_offset =
-                                        IEEE80211_HT_PARAM_CHA_SEC_BELOW;
-                                ht_conf->is_40mhz = true;
-                        } else if (conf_is_ht40_plus(conf)) {
-                                ht_conf->extension_chan_offset =
-                                        IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
-                                ht_conf->is_40mhz = true;
-                        } else {
-                                ht_conf->extension_chan_offset =
-                                        IEEE80211_HT_PARAM_CHA_SEC_NONE;
-                                ht_conf->is_40mhz = false;
-                        }
-                } else
-                        ht_conf->is_40mhz = false;
-                /* Default to no protection. Protection mode will later be set
-                 * from BSS config in iwl_ht_conf */
-                ht_conf->ht_protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
+                for_each_context(priv, ctx) {
+                        /* Configure HT40 channels */
+                        ctx->ht.enabled = conf_is_ht(conf);
+                        if (ctx->ht.enabled) {
+                                if (conf_is_ht40_minus(conf)) {
+                                        ctx->ht.extension_chan_offset =
+                                                IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+                                        ctx->ht.is_40mhz = true;
+                                } else if (conf_is_ht40_plus(conf)) {
+                                        ctx->ht.extension_chan_offset =
+                                                IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+                                        ctx->ht.is_40mhz = true;
+                                } else {
+                                        ctx->ht.extension_chan_offset =
+                                                IEEE80211_HT_PARAM_CHA_SEC_NONE;
+                                        ctx->ht.is_40mhz = false;
+                                }
+                        } else
+                                ctx->ht.is_40mhz = false;
 
-                if ((le16_to_cpu(priv->staging_rxon.channel) != ch))
-                        priv->staging_rxon.flags = 0;
+                        /*
+                         * Default to no protection. Protection mode will
+                         * later be set from BSS config in iwl_ht_conf
+                         */
+                        ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
+
+                        /* if we are switching from ht to 2.4 clear flags
+                         * from any ht related info since 2.4 does not
+                         * support ht */
+                        if ((le16_to_cpu(ctx->staging.channel) != ch))
+                                ctx->staging.flags = 0;
+
+                        iwl_set_rxon_channel(priv, channel, ctx);
+                        iwl_set_rxon_ht(priv, ht_conf);
 
-                iwl_set_rxon_channel(priv, channel);
-                iwl_set_rxon_ht(priv, ht_conf);
+                        iwl_set_flags_for_band(priv, ctx, channel->band,
+                                               ctx->vif);
+                }
 
-                iwl_set_flags_for_band(priv, channel->band, priv->vif);
                 spin_unlock_irqrestore(&priv->lock, flags);
 
-                if (priv->cfg->ops->lib->update_bcast_station)
-                        ret = priv->cfg->ops->lib->update_bcast_station(priv);
+                if (priv->cfg->ops->lib->update_bcast_stations)
+                        ret = priv->cfg->ops->lib->update_bcast_stations(priv);
 
  set_ch_out:
                 /* The list of supported rates and rate mask can be different
@@ -2040,12 +2214,13 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
         if (scan_active)
                 goto out;
 
-        if (memcmp(&priv->active_rxon,
-                   &priv->staging_rxon, sizeof(priv->staging_rxon)))
-                iwlcore_commit_rxon(priv);
-        else
-                IWL_DEBUG_INFO(priv, "Not re-sending same RXON configuration.\n");
-
+        for_each_context(priv, ctx) {
+                if (memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging)))
+                        iwlcore_commit_rxon(priv, ctx);
+                else
+                        IWL_DEBUG_INFO(priv,
+                                "Not re-sending same RXON configuration.\n");
+        }
 
 out:
         IWL_DEBUG_MAC80211(priv, "leave\n");
@@ -2058,6 +2233,8 @@ void iwl_mac_reset_tsf(struct ieee80211_hw *hw)
 {
         struct iwl_priv *priv = hw->priv;
         unsigned long flags;
+        /* IBSS can only be the IWL_RXON_CTX_BSS context */
+        struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
 
         mutex_lock(&priv->mutex);
         IWL_DEBUG_MAC80211(priv, "enter\n");
@@ -2088,8 +2265,8 @@ void iwl_mac_reset_tsf(struct ieee80211_hw *hw)
          * clear RXON_FILTER_ASSOC_MSK bit
          */
         iwl_scan_cancel_timeout(priv, 100);
-        priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-        iwlcore_commit_rxon(priv);
+        ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+        iwlcore_commit_rxon(priv, ctx);
 
         iwl_set_rate(priv);
 
@@ -2498,7 +2675,7 @@ static void iwl_force_rf_reset(struct iwl_priv *priv)
         if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                 return;
 
-        if (!iwl_is_associated(priv)) {
+        if (!iwl_is_any_associated(priv)) {
                 IWL_DEBUG_SCAN(priv, "force reset rejected: not associated\n");
                 return;
         }
@@ -2624,10 +2801,14 @@ static int iwl_check_stuck_queue(struct iwl_priv *priv, int cnt)
                                                 "queue %d, not read %d time\n",
                                                 q->id,
                                                 q->repeat_same_read_ptr);
-                                mod_timer(&priv->monitor_recover, jiffies +
-                                        msecs_to_jiffies(IWL_ONE_HUNDRED_MSECS));
+                                if (!priv->cfg->advanced_bt_coexist) {
+                                        mod_timer(&priv->monitor_recover,
+                                                jiffies + msecs_to_jiffies(
+                                                IWL_ONE_HUNDRED_MSECS));
+                                        return 1;
+                                }
                         }
-                        return 1;
+                        return 0;
                 } else {
                         q->last_read_ptr = q->read_ptr;
                         q->repeat_same_read_ptr = 0;
@@ -2645,25 +2826,27 @@ void iwl_bg_monitor_recover(unsigned long data)
                 return;
 
         /* monitor and check for stuck cmd queue */
-        if (iwl_check_stuck_queue(priv, IWL_CMD_QUEUE_NUM))
+        if (iwl_check_stuck_queue(priv, priv->cmd_queue))
                 return;
 
         /* monitor and check for other stuck queues */
-        if (iwl_is_associated(priv)) {
+        if (iwl_is_any_associated(priv)) {
                 for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
                         /* skip as we already checked the command queue */
-                        if (cnt == IWL_CMD_QUEUE_NUM)
+                        if (cnt == priv->cmd_queue)
                                 continue;
                         if (iwl_check_stuck_queue(priv, cnt))
                                 return;
                 }
         }
-        /*
-         * Reschedule the timer to occur in
-         * priv->cfg->monitor_recover_period
-         */
-        mod_timer(&priv->monitor_recover,
-                jiffies + msecs_to_jiffies(priv->cfg->monitor_recover_period));
+        if (priv->cfg->monitor_recover_period) {
+                /*
+                 * Reschedule the timer to occur in
+                 * priv->cfg->monitor_recover_period
+                 */
+                mod_timer(&priv->monitor_recover, jiffies + msecs_to_jiffies(
+                          priv->cfg->monitor_recover_period));
+        }
 }
 EXPORT_SYMBOL(iwl_bg_monitor_recover);