iwlwifi: cancel scan when down the device
[pandora-kernel.git] / drivers / net / wireless / iwlwifi / iwl-agn.c
index 35337b1..d2315de 100644 (file)
@@ -33,6 +33,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/pci.h>
+#include <linux/pci-aspm.h>
 #include <linux/slab.h>
 #include <linux/dma-mapping.h>
 #include <linux/delay.h>
@@ -86,6 +87,9 @@ MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("iwl4965");
 
+static int iwlagn_ant_coupling;
+static bool iwlagn_bt_ch_announce = 1;
+
 /**
  * iwl_commit_rxon - commit staging_rxon to hardware
  *
@@ -94,21 +98,25 @@ MODULE_ALIAS("iwl4965");
  * function correctly transitions out of the RXON_ASSOC_MSK state if
  * a HW tune is required based on the RXON structure changes.
  */
-int iwl_commit_rxon(struct iwl_priv *priv)
+int iwl_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
 {
        /* cast away the const for active_rxon in this function */
-       struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
+       struct iwl_rxon_cmd *active_rxon = (void *)&ctx->active;
        int ret;
        bool new_assoc =
-               !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK);
+               !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK);
+       bool old_assoc = !!(ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK);
 
        if (!iwl_is_alive(priv))
                return -EBUSY;
 
+       if (!ctx->is_active)
+               return 0;
+
        /* always get timestamp with Rx frame */
-       priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
+       ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK;
 
-       ret = iwl_check_rxon_cmd(priv);
+       ret = iwl_check_rxon_cmd(priv, ctx);
        if (ret) {
                IWL_ERR(priv, "Invalid RXON configuration.  Not committing.\n");
                return -EINVAL;
@@ -119,7 +127,7 @@ int iwl_commit_rxon(struct iwl_priv *priv)
         * abort any previous channel switch if still in process
         */
        if (priv->switch_rxon.switch_in_progress &&
-           (priv->switch_rxon.channel != priv->staging_rxon.channel)) {
+           (priv->switch_rxon.channel != ctx->staging.channel)) {
                IWL_DEBUG_11H(priv, "abort channel switch on %d\n",
                      le16_to_cpu(priv->switch_rxon.channel));
                iwl_chswitch_done(priv, false);
@@ -128,15 +136,15 @@ int iwl_commit_rxon(struct iwl_priv *priv)
        /* If we don't need to send a full RXON, we can use
         * iwl_rxon_assoc_cmd which is used to reconfigure filter
         * and other flags for the current radio configuration. */
-       if (!iwl_full_rxon_required(priv)) {
-               ret = iwl_send_rxon_assoc(priv);
+       if (!iwl_full_rxon_required(priv, ctx)) {
+               ret = iwl_send_rxon_assoc(priv, ctx);
                if (ret) {
                        IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret);
                        return ret;
                }
 
-               memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
-               iwl_print_rx_config_cmd(priv);
+               memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
+               iwl_print_rx_config_cmd(priv, ctx);
                return 0;
        }
 
@@ -144,13 +152,13 @@ int iwl_commit_rxon(struct iwl_priv *priv)
         * an RXON_ASSOC and the new config wants the associated mask enabled,
         * we must clear the associated from the active configuration
         * before we apply the new config */
-       if (iwl_is_associated(priv) && new_assoc) {
+       if (iwl_is_associated_ctx(ctx) && new_assoc) {
                IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n");
                active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
 
-               ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
-                                     sizeof(struct iwl_rxon_cmd),
-                                     &priv->active_rxon);
+               ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd,
+                                      sizeof(struct iwl_rxon_cmd),
+                                      active_rxon);
 
                /* If the mask clearing failed then we set
                 * active_rxon back to what it was previously */
@@ -159,9 +167,9 @@ int iwl_commit_rxon(struct iwl_priv *priv)
                        IWL_ERR(priv, "Error clearing ASSOC_MSK (%d)\n", ret);
                        return ret;
                }
-               iwl_clear_ucode_stations(priv);
-               iwl_restore_stations(priv);
-               ret = iwl_restore_default_wep_keys(priv);
+               iwl_clear_ucode_stations(priv, ctx);
+               iwl_restore_stations(priv, ctx);
+               ret = iwl_restore_default_wep_keys(priv, ctx);
                if (ret) {
                        IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
                        return ret;
@@ -173,54 +181,65 @@ int iwl_commit_rxon(struct iwl_priv *priv)
                       "* channel = %d\n"
                       "* bssid = %pM\n",
                       (new_assoc ? "" : "out"),
-                      le16_to_cpu(priv->staging_rxon.channel),
-                      priv->staging_rxon.bssid_addr);
+                      le16_to_cpu(ctx->staging.channel),
+                      ctx->staging.bssid_addr);
 
-       iwl_set_rxon_hwcrypto(priv, !priv->cfg->mod_params->sw_crypto);
+       iwl_set_rxon_hwcrypto(priv, ctx, !priv->cfg->mod_params->sw_crypto);
+
+       if (!old_assoc) {
+               /*
+                * First of all, before setting associated, we need to
+                * send RXON timing so the device knows about the DTIM
+                * period and other timing values
+                */
+               ret = iwl_send_rxon_timing(priv, ctx);
+               if (ret) {
+                       IWL_ERR(priv, "Error setting RXON timing!\n");
+                       return ret;
+               }
+       }
+
+       if (priv->cfg->ops->hcmd->set_pan_params) {
+               ret = priv->cfg->ops->hcmd->set_pan_params(priv);
+               if (ret)
+                       return ret;
+       }
 
        /* Apply the new configuration
         * RXON unassoc clears the station table in uCode so restoration of
         * stations is needed after it (the RXON command) completes
         */
        if (!new_assoc) {
-               ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
-                             sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
+               ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd,
+                             sizeof(struct iwl_rxon_cmd), &ctx->staging);
                if (ret) {
                        IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
                        return ret;
                }
                IWL_DEBUG_INFO(priv, "Return from !new_assoc RXON.\n");
-               memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
-               iwl_clear_ucode_stations(priv);
-               iwl_restore_stations(priv);
-               ret = iwl_restore_default_wep_keys(priv);
+               memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
+               iwl_clear_ucode_stations(priv, ctx);
+               iwl_restore_stations(priv, ctx);
+               ret = iwl_restore_default_wep_keys(priv, ctx);
                if (ret) {
                        IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
                        return ret;
                }
        }
-
-       priv->start_calib = 0;
        if (new_assoc) {
-               /*
-                * allow CTS-to-self if possible for new association.
-                * this is relevant only for 5000 series and up,
-                * but will not damage 4965
-                */
-               priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN;
-
+               priv->start_calib = 0;
                /* Apply the new configuration
                 * RXON assoc doesn't clear the station table in uCode,
                 */
-               ret = iwl_send_cmd_pdu(priv, REPLY_RXON,
-                             sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
+               ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd,
+                             sizeof(struct iwl_rxon_cmd), &ctx->staging);
                if (ret) {
                        IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
                        return ret;
                }
-               memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+               memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
        }
-       iwl_print_rx_config_cmd(priv);
+       iwl_print_rx_config_cmd(priv, ctx);
 
        iwl_init_sensitivity(priv);
 
@@ -237,10 +256,14 @@ int iwl_commit_rxon(struct iwl_priv *priv)
 
 void iwl_update_chain_flags(struct iwl_priv *priv)
 {
+       struct iwl_rxon_context *ctx;
 
-       if (priv->cfg->ops->hcmd->set_rxon_chain)
-               priv->cfg->ops->hcmd->set_rxon_chain(priv);
-       iwlcore_commit_rxon(priv);
+       if (priv->cfg->ops->hcmd->set_rxon_chain) {
+               for_each_context(priv, ctx) {
+                       priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
+                       iwlcore_commit_rxon(priv, ctx);
+               }
+       }
 }
 
 static void iwl_clear_free_frames(struct iwl_priv *priv)
@@ -344,6 +367,13 @@ static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
         * beacon contents.
         */
 
+       lockdep_assert_held(&priv->mutex);
+
+       if (!priv->beacon_ctx) {
+               IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
+               return 0;
+       }
+
        /* Initialize memory */
        tx_beacon_cmd = &frame->u.beacon;
        memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
@@ -356,7 +386,7 @@ static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
 
        /* Set up TX command fields */
        tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
-       tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id;
+       tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
        tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
        tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
                TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
@@ -366,7 +396,7 @@ static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
                        frame_size);
 
        /* Set up packet rate and flags */
-       rate = iwl_rate_get_lowest_plcp(priv);
+       rate = iwl_rate_get_lowest_plcp(priv, priv->beacon_ctx);
        priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
                                              priv->hw_params.valid_tx_ant);
        rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
@@ -599,23 +629,84 @@ static void iwl_bg_beacon_update(struct work_struct *work)
                container_of(work, struct iwl_priv, beacon_update);
        struct sk_buff *beacon;
 
-       /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
-       beacon = ieee80211_beacon_get(priv->hw, priv->vif);
+       mutex_lock(&priv->mutex);
+       if (!priv->beacon_ctx) {
+               IWL_ERR(priv, "updating beacon w/o beacon context!\n");
+               goto out;
+       }
 
+       if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) {
+               /*
+                * The ucode will send beacon notifications even in
+                * IBSS mode, but we don't want to process them. But
+                * we need to defer the type check to here due to
+                * requiring locking around the beacon_ctx access.
+                */
+               goto out;
+       }
+
+       /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
+       beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif);
        if (!beacon) {
                IWL_ERR(priv, "update beacon failed\n");
-               return;
+               goto out;
        }
 
-       mutex_lock(&priv->mutex);
        /* new beacon skb is allocated every time; dispose previous.*/
        if (priv->ibss_beacon)
                dev_kfree_skb(priv->ibss_beacon);
 
        priv->ibss_beacon = beacon;
-       mutex_unlock(&priv->mutex);
 
        iwl_send_beacon_cmd(priv);
+ out:
+       mutex_unlock(&priv->mutex);
+}
+
+static void iwl_bg_bt_runtime_config(struct work_struct *work)
+{
+       struct iwl_priv *priv =
+               container_of(work, struct iwl_priv, bt_runtime_config);
+
+       if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+               return;
+
+       /* dont send host command if rf-kill is on */
+       if (!iwl_is_ready_rf(priv))
+               return;
+       priv->cfg->ops->hcmd->send_bt_config(priv);
+}
+
+static void iwl_bg_bt_full_concurrency(struct work_struct *work)
+{
+       struct iwl_priv *priv =
+               container_of(work, struct iwl_priv, bt_full_concurrency);
+       struct iwl_rxon_context *ctx;
+
+       if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+               return;
+
+       /* dont send host command if rf-kill is on */
+       if (!iwl_is_ready_rf(priv))
+               return;
+
+       IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
+                      priv->bt_full_concurrent ?
+                      "full concurrency" : "3-wire");
+
+       /*
+        * LQ & RXON updated cmds must be sent before BT Config cmd
+        * to avoid 3-wire collisions
+        */
+       mutex_lock(&priv->mutex);
+       for_each_context(priv, ctx) {
+               if (priv->cfg->ops->hcmd->set_rxon_chain)
+                       priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
+               iwlcore_commit_rxon(priv, ctx);
+       }
+       mutex_unlock(&priv->mutex);
+
+       priv->cfg->ops->hcmd->send_bt_config(priv);
 }
 
 /**
@@ -770,10 +861,10 @@ static void iwl_bg_ucode_trace(unsigned long data)
 static void iwl_rx_beacon_notif(struct iwl_priv *priv,
                                struct iwl_rx_mem_buffer *rxb)
 {
-#ifdef CONFIG_IWLWIFI_DEBUG
        struct iwl_rx_packet *pkt = rxb_addr(rxb);
        struct iwl4965_beacon_notif *beacon =
                (struct iwl4965_beacon_notif *)pkt->u.raw;
+#ifdef CONFIG_IWLWIFI_DEBUG
        u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
 
        IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d "
@@ -785,8 +876,9 @@ static void iwl_rx_beacon_notif(struct iwl_priv *priv,
                le32_to_cpu(beacon->low_tsf), rate);
 #endif
 
-       if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
-           (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
+       priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
+
+       if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
                queue_work(priv->workqueue, &priv->beacon_update);
 }
 
@@ -1188,7 +1280,6 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
                IWL_ERR(priv, "Microcode SW error detected. "
                        " Restarting 0x%X.\n", inta);
                priv->isr_stats.sw++;
-               priv->isr_stats.sw_err = inta;
                iwl_irq_handle_error(priv);
                handled |= CSR_INT_BIT_SW_ERR;
        }
@@ -1369,7 +1460,6 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
                IWL_ERR(priv, "Microcode SW error detected. "
                        " Restarting 0x%X.\n", inta);
                priv->isr_stats.sw++;
-               priv->isr_stats.sw_err = inta;
                iwl_irq_handle_error(priv);
                handled |= CSR_INT_BIT_SW_ERR;
        }
@@ -1618,45 +1708,9 @@ static ssize_t store_tx_power(struct device *d,
 
 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
 
-static ssize_t show_rts_ht_protection(struct device *d,
-                            struct device_attribute *attr, char *buf)
-{
-       struct iwl_priv *priv = dev_get_drvdata(d);
-
-       return sprintf(buf, "%s\n",
-               priv->cfg->use_rts_for_ht ? "RTS/CTS" : "CTS-to-self");
-}
-
-static ssize_t store_rts_ht_protection(struct device *d,
-                             struct device_attribute *attr,
-                             const char *buf, size_t count)
-{
-       struct iwl_priv *priv = dev_get_drvdata(d);
-       unsigned long val;
-       int ret;
-
-       ret = strict_strtoul(buf, 10, &val);
-       if (ret)
-               IWL_INFO(priv, "Input is not in decimal form.\n");
-       else {
-               if (!iwl_is_associated(priv))
-                       priv->cfg->use_rts_for_ht = val ? true : false;
-               else
-                       IWL_ERR(priv, "Sta associated with AP - "
-                               "Change protection mechanism is not allowed\n");
-               ret = count;
-       }
-       return ret;
-}
-
-static DEVICE_ATTR(rts_ht_protection, S_IWUSR | S_IRUGO,
-                       show_rts_ht_protection, store_rts_ht_protection);
-
-
 static struct attribute *iwl_sysfs_entries[] = {
        &dev_attr_temperature.attr,
        &dev_attr_tx_power.attr,
-       &dev_attr_rts_ht_protection.attr,
 #ifdef CONFIG_IWLWIFI_DEBUG
        &dev_attr_debug_level.attr,
 #endif
@@ -1693,30 +1747,44 @@ static void iwl_nic_start(struct iwl_priv *priv)
 struct iwlagn_ucode_capabilities {
        u32 max_probe_length;
        u32 standard_phy_calibration_size;
+       bool pan;
 };
 
 static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
 static int iwl_mac_setup_register(struct iwl_priv *priv,
                                  struct iwlagn_ucode_capabilities *capa);
 
+#define UCODE_EXPERIMENTAL_INDEX       100
+#define UCODE_EXPERIMENTAL_TAG         "exp"
+
 static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first)
 {
        const char *name_pre = priv->cfg->fw_name_pre;
+       char tag[8];
 
-       if (first)
+       if (first) {
+#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
+               priv->fw_index = UCODE_EXPERIMENTAL_INDEX;
+               strcpy(tag, UCODE_EXPERIMENTAL_TAG);
+       } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
+#endif
                priv->fw_index = priv->cfg->ucode_api_max;
-       else
+               sprintf(tag, "%d", priv->fw_index);
+       } else {
                priv->fw_index--;
+               sprintf(tag, "%d", priv->fw_index);
+       }
 
        if (priv->fw_index < priv->cfg->ucode_api_min) {
                IWL_ERR(priv, "no suitable firmware found!\n");
                return -ENOENT;
        }
 
-       sprintf(priv->firmware_name, "%s%d%s",
-               name_pre, priv->fw_index, ".ucode");
+       sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
 
-       IWL_DEBUG_INFO(priv, "attempting to load firmware '%s'\n",
+       IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n",
+                      (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
+                               ? "EXPERIMENTAL " : "",
                       priv->firmware_name);
 
        return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
@@ -1917,6 +1985,11 @@ static int iwlagn_load_firmware(struct iwl_priv *priv,
                        capa->max_probe_length =
                                        le32_to_cpup((__le32 *)tlv_data);
                        break;
+               case IWL_UCODE_TLV_PAN:
+                       if (tlv_len)
+                               goto invalid_tlv_len;
+                       capa->pan = true;
+                       break;
                case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
                        if (tlv_len != sizeof(u32))
                                goto invalid_tlv_len;
@@ -2011,8 +2084,10 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
        memset(&pieces, 0, sizeof(pieces));
 
        if (!ucode_raw) {
-               IWL_ERR(priv, "request for firmware file '%s' failed.\n",
-                       priv->firmware_name);
+               if (priv->fw_index <= priv->cfg->ucode_api_max)
+                       IWL_ERR(priv,
+                               "request for firmware file '%s' failed.\n",
+                               priv->firmware_name);
                goto try_again;
        }
 
@@ -2059,7 +2134,9 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
                          api_max, api_ver);
 
        if (build)
-               sprintf(buildstr, " build %u", build);
+               sprintf(buildstr, " build %u%s", build,
+                      (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
+                               ? " (EXP)" : "");
        else
                buildstr[0] = '\0';
 
@@ -2188,6 +2265,12 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
                priv->_agn.inst_evtlog_size = priv->cfg->max_event_log_size;
        priv->_agn.inst_errlog_ptr = pieces.inst_errlog_ptr;
 
+       if (ucode_capa.pan) {
+               priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
+               priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
+       } else
+               priv->sta_key_max_num = STA_KEY_MAX_NUM;
+
        /* Copy images into buffers for card's bus-master reads ... */
 
        /* Runtime instructions (first block of data in file) */
@@ -2384,6 +2467,7 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
        }
 
        desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
+       priv->isr_stats.err_code = desc;
        pc = iwl_read_targ_mem(priv, base + 2 * sizeof(u32));
        blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32));
        blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32));
@@ -2586,6 +2670,9 @@ int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
                return pos;
        }
 
+       /* enable/disable bt channel announcement */
+       priv->bt_ch_announce = iwlagn_bt_ch_announce;
+
 #ifdef CONFIG_IWLWIFI_DEBUG
        if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log)
                size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
@@ -2632,6 +2719,52 @@ int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
        return pos;
 }
 
+static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
+{
+       struct iwl_ct_kill_config cmd;
+       struct iwl_ct_kill_throttling_config adv_cmd;
+       unsigned long flags;
+       int ret = 0;
+
+       spin_lock_irqsave(&priv->lock, flags);
+       iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+                   CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
+       spin_unlock_irqrestore(&priv->lock, flags);
+       priv->thermal_throttle.ct_kill_toggle = false;
+
+       if (priv->cfg->support_ct_kill_exit) {
+               adv_cmd.critical_temperature_enter =
+                       cpu_to_le32(priv->hw_params.ct_kill_threshold);
+               adv_cmd.critical_temperature_exit =
+                       cpu_to_le32(priv->hw_params.ct_kill_exit_threshold);
+
+               ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
+                                      sizeof(adv_cmd), &adv_cmd);
+               if (ret)
+                       IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
+               else
+                       IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
+                                       "succeeded, "
+                                       "critical temperature enter is %d,"
+                                       "exit is %d\n",
+                                      priv->hw_params.ct_kill_threshold,
+                                      priv->hw_params.ct_kill_exit_threshold);
+       } else {
+               cmd.critical_temperature_R =
+                       cpu_to_le32(priv->hw_params.ct_kill_threshold);
+
+               ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
+                                      sizeof(cmd), &cmd);
+               if (ret)
+                       IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
+               else
+                       IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
+                                       "succeeded, "
+                                       "critical temperature is %d\n",
+                                       priv->hw_params.ct_kill_threshold);
+       }
+}
+
 /**
  * iwl_alive_start - called after REPLY_ALIVE notification received
  *                   from protocol/runtime uCode (initialization uCode's
@@ -2640,6 +2773,7 @@ int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
 static void iwl_alive_start(struct iwl_priv *priv)
 {
        int ret = 0;
+       struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
 
        IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
 
@@ -2680,6 +2814,22 @@ static void iwl_alive_start(struct iwl_priv *priv)
        if (iwl_is_rfkill(priv))
                return;
 
+       if (priv->cfg->advanced_bt_coexist) {
+               /* Configure Bluetooth device coexistence support */
+               priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
+               priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
+               priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
+               priv->cfg->ops->hcmd->send_bt_config(priv);
+               priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
+               if (bt_coex_active && priv->iw_mode != NL80211_IFTYPE_ADHOC)
+                       iwlagn_send_prio_tbl(priv);
+
+               /* FIXME: w/a to force change uCode BT state machine */
+               iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
+                       BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
+               iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
+                       BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
+       }
        ieee80211_wake_queues(priv->hw);
 
        priv->active_rate = IWL_RATES_MASK;
@@ -2688,27 +2838,31 @@ static void iwl_alive_start(struct iwl_priv *priv)
        if (priv->cfg->ops->hcmd->set_tx_ant)
                priv->cfg->ops->hcmd->set_tx_ant(priv, priv->cfg->valid_tx_ant);
 
-       if (iwl_is_associated(priv)) {
+       if (iwl_is_associated_ctx(ctx)) {
                struct iwl_rxon_cmd *active_rxon =
-                               (struct iwl_rxon_cmd *)&priv->active_rxon;
+                               (struct iwl_rxon_cmd *)&ctx->active;
                /* apply any changes in staging */
-               priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
+               ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
                active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
        } else {
+               struct iwl_rxon_context *tmp;
                /* Initialize our rx_config data */
-               iwl_connection_init_rx_config(priv, NULL);
+               for_each_context(priv, tmp)
+                       iwl_connection_init_rx_config(priv, tmp);
 
                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);
        }
 
-       /* Configure Bluetooth device coexistence support */
-       priv->cfg->ops->hcmd->send_bt_config(priv);
+       if (!priv->cfg->advanced_bt_coexist) {
+               /* Configure Bluetooth device coexistence support */
+               priv->cfg->ops->hcmd->send_bt_config(priv);
+       }
 
        iwl_reset_run_time_calib(priv);
 
        /* Configure the adapter for unassociated operation */
-       iwlcore_commit_rxon(priv);
+       iwlcore_commit_rxon(priv, ctx);
 
        /* At this point, the NIC is initialized and operational */
        iwl_rf_kill_ct_config(priv);
@@ -2738,13 +2892,26 @@ static void __iwl_down(struct iwl_priv *priv)
 
        IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
 
-       if (!exit_pending)
-               set_bit(STATUS_EXIT_PENDING, &priv->status);
+       iwl_scan_cancel_timeout(priv, 200);
+
+       exit_pending = test_and_set_bit(STATUS_EXIT_PENDING, &priv->status);
+
+       /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
+        * to prevent rearm timer */
+       if (priv->cfg->ops->lib->recover_from_tx_stall)
+               del_timer_sync(&priv->monitor_recover);
 
-       iwl_clear_ucode_stations(priv);
-       iwl_dealloc_bcast_station(priv);
+       iwl_clear_ucode_stations(priv, NULL);
+       iwl_dealloc_bcast_stations(priv);
        iwl_clear_driver_stations(priv);
 
+       /* reset BT coex data */
+       priv->bt_status = 0;
+       priv->bt_traffic_load = priv->cfg->bt_init_traffic_load;
+       priv->bt_sco_active = false;
+       priv->bt_full_concurrent = false;
+       priv->bt_ci_compliance = 0;
+
        /* Unblock any waiting calls */
        wake_up_interruptible_all(&priv->wait_command_queue);
 
@@ -2877,6 +3044,7 @@ static int iwl_prepare_card_hw(struct iwl_priv *priv)
 
 static int __iwl_up(struct iwl_priv *priv)
 {
+       struct iwl_rxon_context *ctx;
        int i;
        int ret;
 
@@ -2890,9 +3058,13 @@ static int __iwl_up(struct iwl_priv *priv)
                return -EIO;
        }
 
-       ret = iwl_alloc_bcast_station(priv, true);
-       if (ret)
-               return ret;
+       for_each_context(priv, ctx) {
+               ret = iwl_alloc_bcast_station(priv, ctx, true);
+               if (ret) {
+                       iwl_dealloc_bcast_stations(priv);
+                       return ret;
+               }
+       }
 
        iwl_prepare_card_hw(priv);
 
@@ -2917,6 +3089,12 @@ static int __iwl_up(struct iwl_priv *priv)
 
        iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
 
+       /* must be initialised before iwl_hw_nic_init */
+       if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS))
+               priv->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
+       else
+               priv->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
+
        ret = iwlagn_hw_nic_init(priv);
        if (ret) {
                IWL_ERR(priv, "Unable to init nic\n");
@@ -3047,11 +3225,42 @@ static void iwl_bg_restart(struct work_struct *data)
                return;
 
        if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
+               struct iwl_rxon_context *ctx;
+               bool bt_sco, bt_full_concurrent;
+               u8 bt_ci_compliance;
+               u8 bt_load;
+               u8 bt_status;
+
                mutex_lock(&priv->mutex);
-               priv->vif = NULL;
+               for_each_context(priv, ctx)
+                       ctx->vif = NULL;
                priv->is_open = 0;
+
+               /*
+                * __iwl_down() will clear the BT status variables,
+                * which is correct, but when we restart we really
+                * want to keep them so restore them afterwards.
+                *
+                * The restart process will later pick them up and
+                * re-configure the hw when we reconfigure the BT
+                * command.
+                */
+               bt_sco = priv->bt_sco_active;
+               bt_full_concurrent = priv->bt_full_concurrent;
+               bt_ci_compliance = priv->bt_ci_compliance;
+               bt_load = priv->bt_traffic_load;
+               bt_status = priv->bt_status;
+
+               __iwl_down(priv);
+
+               priv->bt_sco_active = bt_sco;
+               priv->bt_full_concurrent = bt_full_concurrent;
+               priv->bt_ci_compliance = bt_ci_compliance;
+               priv->bt_traffic_load = bt_load;
+               priv->bt_status = bt_status;
+
                mutex_unlock(&priv->mutex);
-               iwl_down(priv);
+               iwl_cancel_deferred_work(priv);
                ieee80211_restart_hw(priv->hw);
        } else {
                iwl_down(priv);
@@ -3082,12 +3291,15 @@ static void iwl_bg_rx_replenish(struct work_struct *data)
 
 void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif)
 {
+       struct iwl_rxon_context *ctx;
        struct ieee80211_conf *conf = NULL;
        int ret = 0;
 
        if (!vif || !priv->is_open)
                return;
 
+       ctx = iwl_rxon_ctx_from_vif(vif);
+
        if (vif->type == NL80211_IFTYPE_AP) {
                IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
                return;
@@ -3100,44 +3312,42 @@ void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif)
 
        conf = ieee80211_get_hw_conf(priv->hw);
 
-       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_setup_rxon_timing(priv, vif);
-       ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
-                             sizeof(priv->rxon_timing), &priv->rxon_timing);
+       ret = iwl_send_rxon_timing(priv, ctx);
        if (ret)
-               IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
+               IWL_WARN(priv, "RXON timing - "
                            "Attempting to continue.\n");
 
-       priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
+       ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
 
        iwl_set_rxon_ht(priv, &priv->current_ht_config);
 
        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);
 
-       priv->staging_rxon.assoc_id = cpu_to_le16(vif->bss_conf.aid);
+       ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid);
 
        IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n",
                        vif->bss_conf.aid, vif->bss_conf.beacon_int);
 
        if (vif->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 (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
+       if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
                if (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;
        }
 
-       iwlcore_commit_rxon(priv);
+       iwlcore_commit_rxon(priv, ctx);
 
        IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
-                       vif->bss_conf.aid, priv->active_rxon.bssid_addr);
+                       vif->bss_conf.aid, ctx->active.bssid_addr);
 
        switch (vif->type) {
        case NL80211_IFTYPE_STATION:
@@ -3180,11 +3390,14 @@ static int iwl_mac_setup_register(struct iwl_priv *priv,
 {
        int ret;
        struct ieee80211_hw *hw = priv->hw;
+       struct iwl_rxon_context *ctx;
+
        hw->rate_control_algorithm = "iwl-agn-rs";
 
        /* Tell mac80211 our characteristics */
        hw->flags = IEEE80211_HW_SIGNAL_DBM |
                    IEEE80211_HW_AMPDU_AGGREGATION |
+                   IEEE80211_HW_NEED_DTIM_PERIOD |
                    IEEE80211_HW_SPECTRUM_MGMT;
 
        if (!priv->cfg->broken_powersave)
@@ -3198,9 +3411,10 @@ static int iwl_mac_setup_register(struct iwl_priv *priv,
        hw->sta_data_size = sizeof(struct iwl_station_priv);
        hw->vif_data_size = sizeof(struct iwl_vif_priv);
 
-       hw->wiphy->interface_modes =
-               BIT(NL80211_IFTYPE_STATION) |
-               BIT(NL80211_IFTYPE_ADHOC);
+       for_each_context(priv, ctx) {
+               hw->wiphy->interface_modes |= ctx->interface_modes;
+               hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
+       }
 
        hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
                            WIPHY_FLAG_DISABLE_BEACON_HINTS;
@@ -3290,15 +3504,6 @@ static void iwl_mac_stop(struct ieee80211_hw *hw)
 
        priv->is_open = 0;
 
-       if (iwl_is_ready_rf(priv) || test_bit(STATUS_SCAN_HW, &priv->status)) {
-               /* stop mac, cancel any scan request and clear
-                * RXON_FILTER_ASSOC_MSK BIT
-                */
-               mutex_lock(&priv->mutex);
-               iwl_scan_cancel_timeout(priv, 100);
-               mutex_unlock(&priv->mutex);
-       }
-
        iwl_down(priv);
 
        flush_workqueue(priv->workqueue);
@@ -3328,24 +3533,25 @@ static int iwl_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 
 void iwl_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif)
 {
+       struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
        int ret = 0;
 
+       lockdep_assert_held(&priv->mutex);
+
        if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                return;
 
        /* The following should be done only at AP bring up */
-       if (!iwl_is_associated(priv)) {
+       if (!iwl_is_associated_ctx(ctx)) {
 
                /* RXON - unassoc (to set timing command) */
-               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);
 
                /* RXON Timing */
-               iwl_setup_rxon_timing(priv, vif);
-               ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
-                               sizeof(priv->rxon_timing), &priv->rxon_timing);
+               ret = iwl_send_rxon_timing(priv, ctx);
                if (ret)
-                       IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
+                       IWL_WARN(priv, "RXON timing failed - "
                                        "Attempting to continue.\n");
 
                /* AP has all antennas */
@@ -3353,28 +3559,30 @@ void iwl_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif)
                        priv->hw_params.valid_rx_ant;
                iwl_set_rxon_ht(priv, &priv->current_ht_config);
                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);
 
-               priv->staging_rxon.assoc_id = 0;
+               ctx->staging.assoc_id = 0;
 
                if (vif->bss_conf.use_short_preamble)
-                       priv->staging_rxon.flags |=
+                       ctx->staging.flags |=
                                RXON_FLG_SHORT_PREAMBLE_MSK;
                else
-                       priv->staging_rxon.flags &=
+                       ctx->staging.flags &=
                                ~RXON_FLG_SHORT_PREAMBLE_MSK;
 
-               if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
+               if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
                        if (vif->bss_conf.use_short_slot)
-                               priv->staging_rxon.flags |=
+                               ctx->staging.flags |=
                                        RXON_FLG_SHORT_SLOT_MSK;
                        else
-                               priv->staging_rxon.flags &=
+                               ctx->staging.flags &=
                                        ~RXON_FLG_SHORT_SLOT_MSK;
                }
+               /* need to send beacon cmd before committing assoc RXON! */
+               iwl_send_beacon_cmd(priv);
                /* restore RXON assoc */
-               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_send_beacon_cmd(priv);
 
@@ -3391,9 +3599,11 @@ static void iwl_mac_update_tkip_key(struct ieee80211_hw *hw,
 {
 
        struct iwl_priv *priv = hw->priv;
+       struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
+
        IWL_DEBUG_MAC80211(priv, "enter\n");
 
-       iwl_update_tkip_key(priv, keyconf, sta,
+       iwl_update_tkip_key(priv, vif_priv->ctx, keyconf, sta,
                            iv32, phase1key);
 
        IWL_DEBUG_MAC80211(priv, "leave\n");
@@ -3405,6 +3615,8 @@ static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
                           struct ieee80211_key_conf *key)
 {
        struct iwl_priv *priv = hw->priv;
+       struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
+       struct iwl_rxon_context *ctx = vif_priv->ctx;
        int ret;
        u8 sta_id;
        bool is_default_wep_key = false;
@@ -3416,7 +3628,7 @@ static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
                return -EOPNOTSUPP;
        }
 
-       sta_id = iwl_sta_id_or_broadcast(priv, sta);
+       sta_id = iwl_sta_id_or_broadcast(priv, vif_priv->ctx, sta);
        if (sta_id == IWL_INVALID_STATION)
                return -EINVAL;
 
@@ -3429,9 +3641,11 @@ static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
         * in 1X mode.
         * In legacy wep mode, we use another host command to the uCode.
         */
-       if (key->alg == ALG_WEP && !sta && vif->type != NL80211_IFTYPE_AP) {
+       if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
+            key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
+           !sta) {
                if (cmd == SET_KEY)
-                       is_default_wep_key = !priv->key_mapping_key;
+                       is_default_wep_key = !ctx->key_mapping_keys;
                else
                        is_default_wep_key =
                                        (key->hw_key_idx == HW_KEY_DEFAULT);
@@ -3440,17 +3654,18 @@ static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
        switch (cmd) {
        case SET_KEY:
                if (is_default_wep_key)
-                       ret = iwl_set_default_wep_key(priv, key);
+                       ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
                else
-                       ret = iwl_set_dynamic_key(priv, key, sta_id);
+                       ret = iwl_set_dynamic_key(priv, vif_priv->ctx,
+                                                 key, sta_id);
 
                IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
                break;
        case DISABLE_KEY:
                if (is_default_wep_key)
-                       ret = iwl_remove_default_wep_key(priv, key);
+                       ret = iwl_remove_default_wep_key(priv, ctx, key);
                else
-                       ret = iwl_remove_dynamic_key(priv, key, sta_id);
+                       ret = iwl_remove_dynamic_key(priv, ctx, key, sta_id);
 
                IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
                break;
@@ -3464,25 +3679,6 @@ static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
        return ret;
 }
 
-/*
- * switch to RTS/CTS for TX
- */
-static void iwl_enable_rts_cts(struct iwl_priv *priv)
-{
-
-       if (test_bit(STATUS_EXIT_PENDING, &priv->status))
-               return;
-
-       priv->staging_rxon.flags &= ~RXON_FLG_SELF_CTS_EN;
-       if (!test_bit(STATUS_SCANNING, &priv->status)) {
-               IWL_DEBUG_INFO(priv, "use RTS/CTS protection\n");
-               iwlcore_commit_rxon(priv);
-       } else {
-               /* scanning, defer the request until scan completed */
-               IWL_DEBUG_INFO(priv, "defer setting RTS/CTS protection\n");
-       }
-}
-
 static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
                                struct ieee80211_vif *vif,
                                enum ieee80211_ampdu_mlme_action action,
@@ -3529,14 +3725,33 @@ static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
                }
                if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                        ret = 0;
+               if (priv->cfg->use_rts_for_aggregation) {
+                       struct iwl_station_priv *sta_priv =
+                               (void *) sta->drv_priv;
+                       /*
+                        * switch off RTS/CTS if it was previously enabled
+                        */
+
+                       sta_priv->lq_sta.lq.general_params.flags &=
+                               ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
+                       iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
+                                       &sta_priv->lq_sta.lq, CMD_ASYNC, false);
+               }
                break;
        case IEEE80211_AMPDU_TX_OPERATIONAL:
-               if (priv->cfg->use_rts_for_ht) {
+               if (priv->cfg->use_rts_for_aggregation) {
+                       struct iwl_station_priv *sta_priv =
+                               (void *) sta->drv_priv;
+
                        /*
                         * switch to RTS/CTS if it is the prefer protection
                         * method for HT traffic
                         */
-                       iwl_enable_rts_cts(priv);
+
+                       sta_priv->lq_sta.lq.general_params.flags |=
+                               LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
+                       iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
+                                       &sta_priv->lq_sta.lq, CMD_ASYNC, false);
                }
                ret = 0;
                break;
@@ -3582,6 +3797,7 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
 {
        struct iwl_priv *priv = hw->priv;
        struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
+       struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
        bool is_ap = vif->type == NL80211_IFTYPE_STATION;
        int ret;
        u8 sta_id;
@@ -3597,8 +3813,8 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
        if (vif->type == NL80211_IFTYPE_AP)
                sta_priv->client = true;
 
-       ret = iwl_add_station_common(priv, sta->addr, is_ap, &sta->ht_cap,
-                                    &sta_id);
+       ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
+                                    is_ap, sta, &sta_id);
        if (ret) {
                IWL_ERR(priv, "Unable to add station %pM (%d)\n",
                        sta->addr, ret);
@@ -3624,7 +3840,17 @@ static void iwl_mac_channel_switch(struct ieee80211_hw *hw,
        struct iwl_priv *priv = hw->priv;
        const struct iwl_channel_info *ch_info;
        struct ieee80211_conf *conf = &hw->conf;
+       struct ieee80211_channel *channel = ch_switch->channel;
        struct iwl_ht_config *ht_conf = &priv->current_ht_config;
+       /*
+        * MULTI-FIXME
+        * When we add support for multiple interfaces, we need to
+        * revisit this. The channel switch command in the device
+        * only affects the BSS context, but what does that really
+        * mean? And what if we get a CSA on the second interface?
+        * This needs a lot of work.
+        */
+       struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
        u16 ch;
        unsigned long flags = 0;
 
@@ -3637,7 +3863,7 @@ static void iwl_mac_channel_switch(struct ieee80211_hw *hw,
            test_bit(STATUS_SCANNING, &priv->status))
                goto out_exit;
 
-       if (!iwl_is_associated(priv))
+       if (!iwl_is_associated_ctx(ctx))
                goto out_exit;
 
        /* channel switch in progress */
@@ -3647,11 +3873,10 @@ static void iwl_mac_channel_switch(struct ieee80211_hw *hw,
        mutex_lock(&priv->mutex);
        if (priv->cfg->ops->lib->set_channel_switch) {
 
-               ch = ieee80211_frequency_to_channel(
-                       ch_switch->channel->center_freq);
-               if (le16_to_cpu(priv->active_rxon.channel) != ch) {
+               ch = channel->hw_value;
+               if (le16_to_cpu(ctx->active.channel) != ch) {
                        ch_info = iwl_get_channel_info(priv,
-                                                      conf->channel->band,
+                                                      channel->band,
                                                       ch);
                        if (!is_channel_valid(ch_info)) {
                                IWL_DEBUG_MAC80211(priv, "invalid channel\n");
@@ -3662,34 +3887,31 @@ static void iwl_mac_channel_switch(struct ieee80211_hw *hw,
                        priv->current_ht_config.smps = conf->smps_mode;
 
                        /* Configure HT40 channels */
-                       ht_conf->is_ht = conf_is_ht(conf);
-                       if (ht_conf->is_ht) {
+                       ctx->ht.enabled = conf_is_ht(conf);
+                       if (ctx->ht.enabled) {
                                if (conf_is_ht40_minus(conf)) {
-                                       ht_conf->extension_chan_offset =
+                                       ctx->ht.extension_chan_offset =
                                                IEEE80211_HT_PARAM_CHA_SEC_BELOW;
-                                       ht_conf->is_40mhz = true;
+                                       ctx->ht.is_40mhz = true;
                                } else if (conf_is_ht40_plus(conf)) {
-                                       ht_conf->extension_chan_offset =
+                                       ctx->ht.extension_chan_offset =
                                                IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
-                                       ht_conf->is_40mhz = true;
+                                       ctx->ht.is_40mhz = true;
                                } else {
-                                       ht_conf->extension_chan_offset =
+                                       ctx->ht.extension_chan_offset =
                                                IEEE80211_HT_PARAM_CHA_SEC_NONE;
-                                       ht_conf->is_40mhz = false;
+                                       ctx->ht.is_40mhz = false;
                                }
                        } else
-                               ht_conf->is_40mhz = false;
+                               ctx->ht.is_40mhz = false;
 
-                       /* 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(priv->staging_rxon.channel) != ch))
-                               priv->staging_rxon.flags = 0;
+                       if ((le16_to_cpu(ctx->staging.channel) != ch))
+                               ctx->staging.flags = 0;
 
-                       iwl_set_rxon_channel(priv, conf->channel);
+                       iwl_set_rxon_channel(priv, channel, ctx);
                        iwl_set_rxon_ht(priv, ht_conf);
-                       iwl_set_flags_for_band(priv, conf->channel->band,
-                                              priv->vif);
+                       iwl_set_flags_for_band(priv, ctx, channel->band,
+                                              ctx->vif);
                        spin_unlock_irqrestore(&priv->lock, flags);
 
                        iwl_set_rate(priv);
@@ -3706,10 +3928,55 @@ out:
        mutex_unlock(&priv->mutex);
 out_exit:
        if (!priv->switch_rxon.switch_in_progress)
-               ieee80211_chswitch_done(priv->vif, false);
+               ieee80211_chswitch_done(ctx->vif, false);
        IWL_DEBUG_MAC80211(priv, "leave\n");
 }
 
+static void iwlagn_configure_filter(struct ieee80211_hw *hw,
+                                   unsigned int changed_flags,
+                                   unsigned int *total_flags,
+                                   u64 multicast)
+{
+       struct iwl_priv *priv = hw->priv;
+       __le32 filter_or = 0, filter_nand = 0;
+       struct iwl_rxon_context *ctx;
+
+#define CHK(test, flag)        do { \
+       if (*total_flags & (test))              \
+               filter_or |= (flag);            \
+       else                                    \
+               filter_nand |= (flag);          \
+       } while (0)
+
+       IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
+                       changed_flags, *total_flags);
+
+       CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
+       CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK);
+       CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
+
+#undef CHK
+
+       mutex_lock(&priv->mutex);
+
+       for_each_context(priv, ctx) {
+               ctx->staging.filter_flags &= ~filter_nand;
+               ctx->staging.filter_flags |= filter_or;
+               iwlcore_commit_rxon(priv, ctx);
+       }
+
+       mutex_unlock(&priv->mutex);
+
+       /*
+        * Receiving all multicast frames is always enabled by the
+        * default flags setup in iwl_connection_init_rx_config()
+        * since we currently do not support programming multicast
+        * filters into the device.
+        */
+       *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
+                       FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
+}
+
 static void iwl_mac_flush(struct ieee80211_hw *hw, bool drop)
 {
        struct iwl_priv *priv = hw->priv;
@@ -3765,6 +4032,8 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
        INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
        INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
        INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
+       INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
+       INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
        INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
        INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
 
@@ -3807,10 +4076,10 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv)
        cancel_delayed_work(&priv->alive_start);
        cancel_work_sync(&priv->run_time_calib_work);
        cancel_work_sync(&priv->beacon_update);
+       cancel_work_sync(&priv->bt_full_concurrency);
+       cancel_work_sync(&priv->bt_runtime_config);
        del_timer_sync(&priv->statistics_periodic);
        del_timer_sync(&priv->ucode_trace);
-       if (priv->cfg->ops->lib->recover_from_tx_stall)
-               del_timer_sync(&priv->monitor_recover);
 }
 
 static void iwl_init_hw_rates(struct iwl_priv *priv,
@@ -3865,10 +4134,22 @@ static int iwl_init_drv(struct iwl_priv *priv)
 
        /* Choose which receivers/antennas to use */
        if (priv->cfg->ops->hcmd->set_rxon_chain)
-               priv->cfg->ops->hcmd->set_rxon_chain(priv);
+               priv->cfg->ops->hcmd->set_rxon_chain(priv,
+                                       &priv->contexts[IWL_RXON_CTX_BSS]);
 
        iwl_init_scan_params(priv);
 
+       /* init bt coex */
+       if (priv->cfg->advanced_bt_coexist) {
+               priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
+               priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
+               priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
+               priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
+               priv->bt_duration = BT_DURATION_LIMIT_DEF;
+               priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
+               priv->dynamic_agg_thresh = BT_AGG_THRESHOLD_DEF;
+       }
+
        /* Set the tx_power_user_lmt to the lowest power level
         * this value will get overwritten by channel max power avg
         * from eeprom */
@@ -3910,7 +4191,7 @@ static struct ieee80211_ops iwl_hw_ops = {
        .add_interface = iwl_mac_add_interface,
        .remove_interface = iwl_mac_remove_interface,
        .config = iwl_mac_config,
-       .configure_filter = iwl_configure_filter,
+       .configure_filter = iwlagn_configure_filter,
        .set_key = iwl_mac_set_key,
        .update_tkip_key = iwl_mac_update_tkip_key,
        .conf_tx = iwl_mac_conf_tx,
@@ -3923,11 +4204,60 @@ static struct ieee80211_ops iwl_hw_ops = {
        .sta_remove = iwl_mac_sta_remove,
        .channel_switch = iwl_mac_channel_switch,
        .flush = iwl_mac_flush,
+       .tx_last_beacon = iwl_mac_tx_last_beacon,
+};
+
+static void iwl_hw_detect(struct iwl_priv *priv)
+{
+       priv->hw_rev = _iwl_read32(priv, CSR_HW_REV);
+       priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG);
+       pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id);
+       IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", priv->rev_id);
+}
+
+static int iwl_set_hw_params(struct iwl_priv *priv)
+{
+       priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
+       priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
+       if (priv->cfg->mod_params->amsdu_size_8K)
+               priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_8K);
+       else
+               priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_4K);
+
+       priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL;
+
+       if (priv->cfg->mod_params->disable_11n)
+               priv->cfg->sku &= ~IWL_SKU_N;
+
+       /* Device-specific setup */
+       return priv->cfg->ops->lib->set_hw_params(priv);
+}
+
+static const u8 iwlagn_bss_ac_to_fifo[] = {
+       IWL_TX_FIFO_VO,
+       IWL_TX_FIFO_VI,
+       IWL_TX_FIFO_BE,
+       IWL_TX_FIFO_BK,
+};
+
+static const u8 iwlagn_bss_ac_to_queue[] = {
+       0, 1, 2, 3,
+};
+
+static const u8 iwlagn_pan_ac_to_fifo[] = {
+       IWL_TX_FIFO_VO_IPAN,
+       IWL_TX_FIFO_VI_IPAN,
+       IWL_TX_FIFO_BE_IPAN,
+       IWL_TX_FIFO_BK_IPAN,
+};
+
+static const u8 iwlagn_pan_ac_to_queue[] = {
+       7, 6, 5, 4,
 };
 
 static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-       int err = 0;
+       int err = 0, i;
        struct iwl_priv *priv;
        struct ieee80211_hw *hw;
        struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
@@ -3955,6 +4285,53 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        priv = hw->priv;
        /* At this point both hw and priv are allocated. */
 
+       /*
+        * The default context is always valid,
+        * more may be discovered when firmware
+        * is loaded.
+        */
+       priv->valid_contexts = BIT(IWL_RXON_CTX_BSS);
+
+       for (i = 0; i < NUM_IWL_RXON_CTX; i++)
+               priv->contexts[i].ctxid = i;
+
+       priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
+       priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
+       priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
+       priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
+       priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
+       priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
+       priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
+       priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
+       priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo = iwlagn_bss_ac_to_fifo;
+       priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue = iwlagn_bss_ac_to_queue;
+       priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
+               BIT(NL80211_IFTYPE_ADHOC);
+       priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
+               BIT(NL80211_IFTYPE_STATION);
+       priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
+       priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
+       priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
+
+       priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
+       priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd = REPLY_WIPAN_RXON_TIMING;
+       priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd = REPLY_WIPAN_RXON_ASSOC;
+       priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
+       priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
+       priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
+       priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
+       priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
+       priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo = iwlagn_pan_ac_to_fifo;
+       priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue = iwlagn_pan_ac_to_queue;
+       priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE;
+       priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
+               BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
+       priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
+       priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
+       priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
+
+       BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
+
        SET_IEEE80211_DEV(hw, &pdev->dev);
 
        IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
@@ -3962,12 +4339,23 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        priv->pci_dev = pdev;
        priv->inta_mask = CSR_INI_SET_MASK;
 
+       /* is antenna coupling more than 35dB ? */
+       priv->bt_ant_couple_ok =
+               (iwlagn_ant_coupling > IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
+               true : false;
+
+       /* enable/disable bt channel announcement */
+       priv->bt_ch_announce = iwlagn_bt_ch_announce;
+
        if (iwl_alloc_traffic_mem(priv))
                IWL_ERR(priv, "Not enough memory to generate traffic log\n");
 
        /**************************
         * 2. Initializing PCI bus
         **************************/
+       pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
+                               PCIE_LINK_STATE_CLKPM);
+
        if (pci_enable_device(pdev)) {
                err = -ENODEV;
                goto out_ieee80211_free_hw;
@@ -4492,3 +4880,11 @@ module_param_named(ucode_alternative, iwlagn_wanted_ucode_alternative, int,
                   S_IRUGO);
 MODULE_PARM_DESC(ucode_alternative,
                 "specify ucode alternative to use from ucode file");
+
+module_param_named(antenna_coupling, iwlagn_ant_coupling, int, S_IRUGO);
+MODULE_PARM_DESC(antenna_coupling,
+                "specify antenna coupling in dB (defualt: 0 dB)");
+
+module_param_named(bt_ch_announce, iwlagn_bt_ch_announce, bool, S_IRUGO);
+MODULE_PARM_DESC(bt_ch_announce,
+                "Enable BT channel announcement mode (default: enable)");