Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[pandora-kernel.git] / drivers / net / wireless / iwlwifi / iwl-agn.c
index 818367b..a672d33 100644 (file)
@@ -31,6 +31,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/pci.h>
+#include <linux/slab.h>
 #include <linux/dma-mapping.h>
 #include <linux/delay.h>
 #include <linux/sched.h>
@@ -54,6 +55,7 @@
 #include "iwl-helpers.h"
 #include "iwl-sta.h"
 #include "iwl-calib.h"
+#include "iwl-agn.h"
 
 
 /******************************************************************************
@@ -82,13 +84,6 @@ MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("iwl4965");
 
-/*************** STATION TABLE MANAGEMENT ****
- * mac80211 should be examined to determine if sta_info is duplicating
- * the functionality provided here
- */
-
-/**************************************************************/
-
 /**
  * iwl_commit_rxon - commit staging_rxon to hardware
  *
@@ -143,9 +138,6 @@ int iwl_commit_rxon(struct iwl_priv *priv)
                return 0;
        }
 
-       /* station table will be cleared */
-       priv->assoc_station_added = 0;
-
        /* If we are currently associated and the new config requires
         * an RXON_ASSOC and the new config wants the associated mask enabled,
         * we must clear the associated from the active configuration
@@ -165,6 +157,13 @@ 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, false);
+               iwl_restore_stations(priv);
+               ret = iwl_restore_default_wep_keys(priv);
+               if (ret) {
+                       IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
+                       return ret;
+               }
        }
 
        IWL_DEBUG_INFO(priv, "Sending RXON\n"
@@ -178,9 +177,8 @@ int iwl_commit_rxon(struct iwl_priv *priv)
        iwl_set_rxon_hwcrypto(priv, !priv->cfg->mod_params->sw_crypto);
 
        /* Apply the new configuration
-        * RXON unassoc clears the station table in uCode, send it before
-        * we add the bcast station. If assoc bit is set, we will send RXON
-        * after having added the bcast and bssid station.
+        * 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,
@@ -189,35 +187,19 @@ int iwl_commit_rxon(struct iwl_priv *priv)
                        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, false);
+               iwl_restore_stations(priv);
+               ret = iwl_restore_default_wep_keys(priv);
+               if (ret) {
+                       IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
+                       return ret;
+               }
        }
 
-       iwl_clear_stations_table(priv);
-
        priv->start_calib = 0;
-
-       /* Add the broadcast address so we can send broadcast frames */
-       priv->cfg->ops->lib->add_bcast_station(priv);
-
-
-       /* If we have set the ASSOC_MSK and we are in BSS mode then
-        * add the IWL_AP_ID to the station rate table */
        if (new_assoc) {
-               if (priv->iw_mode == NL80211_IFTYPE_STATION) {
-                       ret = iwl_rxon_add_station(priv,
-                                          priv->active_rxon.bssid_addr, 1);
-                       if (ret == IWL_INVALID_STATION) {
-                               IWL_ERR(priv,
-                                       "Error adding AP address for TX.\n");
-                               return -EIO;
-                       }
-                       priv->assoc_station_added = 1;
-                       if (priv->default_wep_key &&
-                           iwl_send_static_wepkey_cmd(priv, 0))
-                               IWL_ERR(priv,
-                                       "Could not send WEP static key.\n");
-               }
-
                /*
                 * allow CTS-to-self if possible for new association.
                 * this is relevant only for 5000 series and up,
@@ -906,10 +888,10 @@ static void iwl_setup_rx_handlers(struct iwl_priv *priv)
        priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
            iwl_rx_missed_beacon_notif;
        /* Rx handlers */
-       priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl_rx_reply_rx_phy;
-       priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl_rx_reply_rx;
+       priv->rx_handlers[REPLY_RX_PHY_CMD] = iwlagn_rx_reply_rx_phy;
+       priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwlagn_rx_reply_rx;
        /* block ack */
-       priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl_rx_reply_compressed_ba;
+       priv->rx_handlers[REPLY_COMPRESSED_BA] = iwlagn_rx_reply_compressed_ba;
        /* Set up hardware specific Rx handlers */
        priv->cfg->ops->lib->rx_handler_setup(priv);
 }
@@ -1037,7 +1019,7 @@ void iwl_rx_handle(struct iwl_priv *priv)
                        count++;
                        if (count >= 8) {
                                rxq->read = i;
-                               iwl_rx_replenish_now(priv);
+                               iwlagn_rx_replenish_now(priv);
                                count = 0;
                        }
                }
@@ -1046,9 +1028,9 @@ void iwl_rx_handle(struct iwl_priv *priv)
        /* Backtrack one entry */
        rxq->read = i;
        if (fill_rx)
-               iwl_rx_replenish_now(priv);
+               iwlagn_rx_replenish_now(priv);
        else
-               iwl_rx_queue_restock(priv);
+               iwlagn_rx_queue_restock(priv);
 }
 
 /* call this function to flush any scheduled tasklet */
@@ -1258,9 +1240,17 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
        /* Ack/clear/reset pending uCode interrupts.
         * Note:  Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
         */
-       iwl_write32(priv, CSR_INT, priv->inta);
+       /* There is a hardware bug in the interrupt mask function that some
+        * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if
+        * they are disabled in the CSR_INT_MASK register. Furthermore the
+        * ICT interrupt handling mechanism has another bug that might cause
+        * these unmasked interrupts fail to be detected. We workaround the
+        * hardware bugs here by ACKing all the possible interrupts so that
+        * interrupt coalescing can still be achieved.
+        */
+       iwl_write32(priv, CSR_INT, priv->_agn.inta | ~priv->inta_mask);
 
-       inta = priv->inta;
+       inta = priv->_agn.inta;
 
 #ifdef CONFIG_IWLWIFI_DEBUG
        if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
@@ -1273,8 +1263,8 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
 
        spin_unlock_irqrestore(&priv->lock, flags);
 
-       /* saved interrupt in inta variable now we can reset priv->inta */
-       priv->inta = 0;
+       /* saved interrupt in inta variable now we can reset priv->_agn.inta */
+       priv->_agn.inta = 0;
 
        /* Now service all interrupt bits discovered above. */
        if (inta & CSR_INT_BIT_HW_ERR) {
@@ -1439,6 +1429,60 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
                iwl_enable_interrupts(priv);
 }
 
+/* the threshold ratio of actual_ack_cnt to expected_ack_cnt in percent */
+#define ACK_CNT_RATIO (50)
+#define BA_TIMEOUT_CNT (5)
+#define BA_TIMEOUT_MAX (16)
+
+/**
+ * iwl_good_ack_health - checks for ACK count ratios, BA timeout retries.
+ *
+ * When the ACK count ratio is 0 and aggregated BA timeout retries exceeding
+ * the BA_TIMEOUT_MAX, reload firmware and bring system back to normal
+ * operation state.
+ */
+bool iwl_good_ack_health(struct iwl_priv *priv,
+                               struct iwl_rx_packet *pkt)
+{
+       bool rc = true;
+       int actual_ack_cnt_delta, expected_ack_cnt_delta;
+       int ba_timeout_delta;
+
+       actual_ack_cnt_delta =
+               le32_to_cpu(pkt->u.stats.tx.actual_ack_cnt) -
+               le32_to_cpu(priv->statistics.tx.actual_ack_cnt);
+       expected_ack_cnt_delta =
+               le32_to_cpu(pkt->u.stats.tx.expected_ack_cnt) -
+               le32_to_cpu(priv->statistics.tx.expected_ack_cnt);
+       ba_timeout_delta =
+               le32_to_cpu(pkt->u.stats.tx.agg.ba_timeout) -
+               le32_to_cpu(priv->statistics.tx.agg.ba_timeout);
+       if ((priv->_agn.agg_tids_count > 0) &&
+           (expected_ack_cnt_delta > 0) &&
+           (((actual_ack_cnt_delta * 100) / expected_ack_cnt_delta)
+               < ACK_CNT_RATIO) &&
+           (ba_timeout_delta > BA_TIMEOUT_CNT)) {
+               IWL_DEBUG_RADIO(priv, "actual_ack_cnt delta = %d,"
+                               " expected_ack_cnt = %d\n",
+                               actual_ack_cnt_delta, expected_ack_cnt_delta);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+               IWL_DEBUG_RADIO(priv, "rx_detected_cnt delta = %d\n",
+                               priv->delta_statistics.tx.rx_detected_cnt);
+               IWL_DEBUG_RADIO(priv,
+                               "ack_or_ba_timeout_collision delta = %d\n",
+                               priv->delta_statistics.tx.
+                               ack_or_ba_timeout_collision);
+#endif
+               IWL_DEBUG_RADIO(priv, "agg ba_timeout delta = %d\n",
+                               ba_timeout_delta);
+               if (!actual_ack_cnt_delta &&
+                   (ba_timeout_delta >= BA_TIMEOUT_MAX))
+                       rc = false;
+       }
+       return rc;
+}
+
 
 /******************************************************************************
  *
@@ -1800,6 +1844,7 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
        u32 data2, line;
        u32 desc, time, count, base, data1;
        u32 blink1, blink2, ilink1, ilink2;
+       u32 pc, hcmd;
 
        if (priv->ucode_type == UCODE_INIT)
                base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
@@ -1822,6 +1867,7 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
        }
 
        desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
+       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));
        ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32));
@@ -1830,6 +1876,7 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
        data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32));
        line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32));
        time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32));
+       hcmd = iwl_read_targ_mem(priv, base + 22 * sizeof(u32));
 
        trace_iwlwifi_dev_ucode_error(priv, desc, time, data1, data2, line,
                                      blink1, blink2, ilink1, ilink2);
@@ -1838,10 +1885,9 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
                "data1      data2      line\n");
        IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n",
                desc_lookup(desc), desc, time, data1, data2, line);
-       IWL_ERR(priv, "blink1  blink2  ilink1  ilink2\n");
-       IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2,
-               ilink1, ilink2);
-
+       IWL_ERR(priv, "pc      blink1  blink2  ilink1  ilink2  hcmd\n");
+       IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n",
+               pc, blink1, blink2, ilink1, ilink2, hcmd);
 }
 
 #define EVENT_START_OFFSET  (4 * sizeof(u32))
@@ -1957,9 +2003,6 @@ static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
        return pos;
 }
 
-/* For sanity check only.  Actual size is determined by uCode, typ. 512 */
-#define MAX_EVENT_LOG_SIZE (512)
-
 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
 
 int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
@@ -1992,16 +2035,16 @@ int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
        num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
        next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
 
-       if (capacity > MAX_EVENT_LOG_SIZE) {
+       if (capacity > priv->cfg->max_event_log_size) {
                IWL_ERR(priv, "Log capacity %d is bogus, limit to %d entries\n",
-                       capacity, MAX_EVENT_LOG_SIZE);
-               capacity = MAX_EVENT_LOG_SIZE;
+                       capacity, priv->cfg->max_event_log_size);
+               capacity = priv->cfg->max_event_log_size;
        }
 
-       if (next_entry > MAX_EVENT_LOG_SIZE) {
+       if (next_entry > priv->cfg->max_event_log_size) {
                IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n",
-                       next_entry, MAX_EVENT_LOG_SIZE);
-               next_entry = MAX_EVENT_LOG_SIZE;
+                       next_entry, priv->cfg->max_event_log_size);
+               next_entry = priv->cfg->max_event_log_size;
        }
 
        size = num_wraps ? capacity : next_entry;
@@ -2086,7 +2129,6 @@ static void iwl_alive_start(struct iwl_priv *priv)
                goto restart;
        }
 
-       iwl_clear_stations_table(priv);
        ret = priv->cfg->ops->lib->alive_notify(priv);
        if (ret) {
                IWL_WARN(priv,
@@ -2097,13 +2139,19 @@ static void iwl_alive_start(struct iwl_priv *priv)
        /* After the ALIVE response, we can send host commands to the uCode */
        set_bit(STATUS_ALIVE, &priv->status);
 
+       if (priv->cfg->ops->lib->recover_from_tx_stall) {
+               /* Enable timer to monitor the driver queues */
+               mod_timer(&priv->monitor_recover,
+                       jiffies +
+                       msecs_to_jiffies(priv->cfg->monitor_recover_period));
+       }
+
        if (iwl_is_rfkill(priv))
                return;
 
        ieee80211_wake_queues(priv->hw);
 
-       priv->active_rate = priv->rates_mask;
-       priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
+       priv->active_rate = IWL_RATES_MASK;
 
        /* Configure Tx antenna selection based on H/W config */
        if (priv->cfg->ops->hcmd->set_tx_ant)
@@ -2126,7 +2174,7 @@ static void iwl_alive_start(struct iwl_priv *priv)
        }
 
        /* Configure Bluetooth device coexistence support */
-       iwl_send_bt_config(priv);
+       priv->cfg->ops->hcmd->send_bt_config(priv);
 
        iwl_reset_run_time_calib(priv);
 
@@ -2143,18 +2191,8 @@ static void iwl_alive_start(struct iwl_priv *priv)
        wake_up_interruptible(&priv->wait_command_queue);
 
        iwl_power_update_mode(priv, true);
+       IWL_DEBUG_INFO(priv, "Updated power mode\n");
 
-       /* reassociate for ADHOC mode */
-       if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
-               struct sk_buff *beacon = ieee80211_beacon_get(priv->hw,
-                                                               priv->vif);
-               if (beacon)
-                       iwl_mac_beacon_update(priv->hw, beacon);
-       }
-
-
-       if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status))
-               iwl_set_mode(priv, priv->iw_mode);
 
        return;
 
@@ -2174,7 +2212,7 @@ static void __iwl_down(struct iwl_priv *priv)
        if (!exit_pending)
                set_bit(STATUS_EXIT_PENDING, &priv->status);
 
-       iwl_clear_stations_table(priv);
+       iwl_clear_ucode_stations(priv, true);
 
        /* Unblock any waiting calls */
        wake_up_interruptible_all(&priv->wait_command_queue);
@@ -2222,8 +2260,8 @@ static void __iwl_down(struct iwl_priv *priv)
        /* device going down, Stop using ICT table */
        iwl_disable_ict(priv);
 
-       iwl_txq_ctx_stop(priv);
-       iwl_rxq_stop(priv);
+       iwlagn_txq_ctx_stop(priv);
+       iwlagn_rxq_stop(priv);
 
        /* Power-down device's busmaster DMA clocks */
        iwl_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT);
@@ -2283,7 +2321,7 @@ static int iwl_prepare_card_hw(struct iwl_priv *priv)
 {
        int ret = 0;
 
-       IWL_DEBUG_INFO(priv, "iwl_prepare_card_hw enter \n");
+       IWL_DEBUG_INFO(priv, "iwl_prepare_card_hw enter\n");
 
        ret = iwl_set_hw_ready(priv);
        if (priv->hw_ready)
@@ -2344,7 +2382,7 @@ static int __iwl_up(struct iwl_priv *priv)
 
        iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
 
-       ret = iwl_hw_nic_init(priv);
+       ret = iwlagn_hw_nic_init(priv);
        if (ret) {
                IWL_ERR(priv, "Unable to init nic\n");
                return ret;
@@ -2371,8 +2409,6 @@ static int __iwl_up(struct iwl_priv *priv)
 
        for (i = 0; i < MAX_HW_RESTARTS; i++) {
 
-               iwl_clear_stations_table(priv);
-
                /* load bootstrap state machine,
                 * load bootstrap program into processor's memory,
                 * prepare to load the "initialize" uCode */
@@ -2496,7 +2532,7 @@ static void iwl_bg_rx_replenish(struct work_struct *data)
                return;
 
        mutex_lock(&priv->mutex);
-       iwl_rx_replenish(priv);
+       iwlagn_rx_replenish(priv);
        mutex_unlock(&priv->mutex);
 }
 
@@ -2506,17 +2542,12 @@ void iwl_post_associate(struct iwl_priv *priv)
 {
        struct ieee80211_conf *conf = NULL;
        int ret = 0;
-       unsigned long flags;
 
        if (priv->iw_mode == NL80211_IFTYPE_AP) {
                IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
                return;
        }
 
-       IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
-                       priv->assoc_id, priv->active_rxon.bssid_addr);
-
-
        if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                return;
 
@@ -2568,6 +2599,9 @@ void iwl_post_associate(struct iwl_priv *priv)
 
        iwlcore_commit_rxon(priv);
 
+       IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
+                       priv->assoc_id, priv->active_rxon.bssid_addr);
+
        switch (priv->iw_mode) {
        case NL80211_IFTYPE_STATION:
                break;
@@ -2577,7 +2611,7 @@ void iwl_post_associate(struct iwl_priv *priv)
                /* assume default assoc id */
                priv->assoc_id = 1;
 
-               iwl_rxon_add_station(priv, priv->bssid, 0);
+               iwl_add_local_station(priv, priv->bssid, true);
                iwl_send_beacon_cmd(priv);
 
                break;
@@ -2588,13 +2622,6 @@ void iwl_post_associate(struct iwl_priv *priv)
                break;
        }
 
-       if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
-               priv->assoc_station_added = 1;
-
-       spin_lock_irqsave(&priv->lock, flags);
-       iwl_activate_qos(priv, 0);
-       spin_unlock_irqrestore(&priv->lock, flags);
-
        /* the chain noise calibration will enabled PM upon completion
         * If chain noise has already been run, then we need to enable
         * power management here */
@@ -2627,7 +2654,6 @@ static int iwl_mac_setup_register(struct iwl_priv *priv)
 
        /* Tell mac80211 our characteristics */
        hw->flags = IEEE80211_HW_SIGNAL_DBM |
-                   IEEE80211_HW_NOISE_DBM |
                    IEEE80211_HW_AMPDU_AGGREGATION |
                    IEEE80211_HW_SPECTRUM_MGMT;
 
@@ -2644,7 +2670,7 @@ static int iwl_mac_setup_register(struct iwl_priv *priv)
                BIT(NL80211_IFTYPE_STATION) |
                BIT(NL80211_IFTYPE_ADHOC);
 
-       hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY |
+       hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
                            WIPHY_FLAG_DISABLE_BEACON_HINTS;
 
        /*
@@ -2761,7 +2787,7 @@ static int iwl_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
        IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
                     ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
 
-       if (iwl_tx_skb(priv, skb))
+       if (iwlagn_tx_skb(priv, skb))
                dev_kfree_skb_any(skb);
 
        IWL_DEBUG_MACDUMP(priv, "leave\n");
@@ -2771,7 +2797,6 @@ static int iwl_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 void iwl_config_ap(struct iwl_priv *priv)
 {
        int ret = 0;
-       unsigned long flags;
 
        if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                return;
@@ -2823,10 +2848,6 @@ void iwl_config_ap(struct iwl_priv *priv)
                /* restore RXON assoc */
                priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
                iwlcore_commit_rxon(priv);
-               iwl_reset_qos(priv);
-               spin_lock_irqsave(&priv->lock, flags);
-               iwl_activate_qos(priv, 1);
-               spin_unlock_irqrestore(&priv->lock, flags);
                iwl_add_bcast_station(priv);
        }
        iwl_send_beacon_cmd(priv);
@@ -2881,14 +2902,14 @@ static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
        mutex_lock(&priv->mutex);
        iwl_scan_cancel_timeout(priv, 100);
-       mutex_unlock(&priv->mutex);
 
-       /* If we are getting WEP group key and we didn't receive any key mapping
+       /*
+        * If we are getting WEP group key and we didn't receive any key mapping
         * so far, we are in legacy wep mode (group key only), otherwise we are
         * in 1X mode.
-        * In legacy wep mode, we use another host command to the uCode */
-       if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id &&
-               priv->iw_mode != NL80211_IFTYPE_AP) {
+        * In legacy wep mode, we use another host command to the uCode.
+        */
+       if (key->alg == ALG_WEP && !sta && vif->type != NL80211_IFTYPE_AP) {
                if (cmd == SET_KEY)
                        is_default_wep_key = !priv->key_mapping_key;
                else
@@ -2917,6 +2938,7 @@ static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
                ret = -EINVAL;
        }
 
+       mutex_unlock(&priv->mutex);
        IWL_DEBUG_MAC80211(priv, "leave\n");
 
        return ret;
@@ -2949,10 +2971,21 @@ static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
                        return ret;
        case IEEE80211_AMPDU_TX_START:
                IWL_DEBUG_HT(priv, "start Tx\n");
-               return iwl_tx_agg_start(priv, sta->addr, tid, ssn);
+               ret = iwlagn_tx_agg_start(priv, sta->addr, tid, ssn);
+               if (ret == 0) {
+                       priv->_agn.agg_tids_count++;
+                       IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n",
+                                    priv->_agn.agg_tids_count);
+               }
+               return ret;
        case IEEE80211_AMPDU_TX_STOP:
                IWL_DEBUG_HT(priv, "stop Tx\n");
-               ret = iwl_tx_agg_stop(priv, sta->addr, tid);
+               ret = iwlagn_tx_agg_stop(priv, sta->addr, tid);
+               if ((ret == 0) && (priv->_agn.agg_tids_count > 0)) {
+                       priv->_agn.agg_tids_count--;
+                       IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n",
+                                    priv->_agn.agg_tids_count);
+               }
                if (test_bit(STATUS_EXIT_PENDING, &priv->status))
                        return 0;
                else
@@ -2968,18 +3001,6 @@ static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
        return 0;
 }
 
-static int iwl_mac_get_stats(struct ieee80211_hw *hw,
-                            struct ieee80211_low_level_stats *stats)
-{
-       struct iwl_priv *priv = hw->priv;
-
-       priv = hw->priv;
-       IWL_DEBUG_MAC80211(priv, "enter\n");
-       IWL_DEBUG_MAC80211(priv, "leave\n");
-
-       return 0;
-}
-
 static void iwl_mac_sta_notify(struct ieee80211_hw *hw,
                               struct ieee80211_vif *vif,
                               enum sta_notify_cmd cmd,
@@ -2989,18 +3010,7 @@ static void iwl_mac_sta_notify(struct ieee80211_hw *hw,
        struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
        int sta_id;
 
-       /*
-        * TODO: We really should use this callback to
-        *       actually maintain the station table in
-        *       the device.
-        */
-
        switch (cmd) {
-       case STA_NOTIFY_ADD:
-               atomic_set(&sta_priv->pending_frames, 0);
-               if (vif->type == NL80211_IFTYPE_AP)
-                       sta_priv->client = true;
-               break;
        case STA_NOTIFY_SLEEP:
                WARN_ON(!sta_priv->client);
                sta_priv->asleep = true;
@@ -3021,6 +3031,40 @@ static void iwl_mac_sta_notify(struct ieee80211_hw *hw,
        }
 }
 
+static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
+                             struct ieee80211_vif *vif,
+                             struct ieee80211_sta *sta)
+{
+       struct iwl_priv *priv = hw->priv;
+       struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
+       bool is_ap = priv->iw_mode == NL80211_IFTYPE_STATION;
+       int ret;
+       u8 sta_id;
+
+       IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
+                       sta->addr);
+
+       atomic_set(&sta_priv->pending_frames, 0);
+       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);
+       if (ret) {
+               IWL_ERR(priv, "Unable to add station %pM (%d)\n",
+                       sta->addr, ret);
+               /* Should we return success if return code is EEXIST ? */
+               return ret;
+       }
+
+       /* Initialize rate scaling */
+       IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
+                      sta->addr);
+       iwl_rs_rate_init(priv, sta, sta_id);
+
+       return ret;
+}
+
 /*****************************************************************************
  *
  * sysfs attributes
@@ -3121,125 +3165,6 @@ 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_flags(struct device *d,
-                         struct device_attribute *attr, char *buf)
-{
-       struct iwl_priv *priv = dev_get_drvdata(d);
-
-       return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
-}
-
-static ssize_t store_flags(struct device *d,
-                          struct device_attribute *attr,
-                          const char *buf, size_t count)
-{
-       struct iwl_priv *priv = dev_get_drvdata(d);
-       unsigned long val;
-       u32 flags;
-       int ret = strict_strtoul(buf, 0, &val);
-       if (ret)
-               return ret;
-       flags = (u32)val;
-
-       mutex_lock(&priv->mutex);
-       if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
-               /* Cancel any currently running scans... */
-               if (iwl_scan_cancel_timeout(priv, 100))
-                       IWL_WARN(priv, "Could not cancel scan.\n");
-               else {
-                       IWL_DEBUG_INFO(priv, "Commit rxon.flags = 0x%04X\n", flags);
-                       priv->staging_rxon.flags = cpu_to_le32(flags);
-                       iwlcore_commit_rxon(priv);
-               }
-       }
-       mutex_unlock(&priv->mutex);
-
-       return count;
-}
-
-static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
-
-static ssize_t show_filter_flags(struct device *d,
-                                struct device_attribute *attr, char *buf)
-{
-       struct iwl_priv *priv = dev_get_drvdata(d);
-
-       return sprintf(buf, "0x%04X\n",
-               le32_to_cpu(priv->active_rxon.filter_flags));
-}
-
-static ssize_t store_filter_flags(struct device *d,
-                                 struct device_attribute *attr,
-                                 const char *buf, size_t count)
-{
-       struct iwl_priv *priv = dev_get_drvdata(d);
-       unsigned long val;
-       u32 filter_flags;
-       int ret = strict_strtoul(buf, 0, &val);
-       if (ret)
-               return ret;
-       filter_flags = (u32)val;
-
-       mutex_lock(&priv->mutex);
-       if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
-               /* Cancel any currently running scans... */
-               if (iwl_scan_cancel_timeout(priv, 100))
-                       IWL_WARN(priv, "Could not cancel scan.\n");
-               else {
-                       IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = "
-                                      "0x%04X\n", filter_flags);
-                       priv->staging_rxon.filter_flags =
-                               cpu_to_le32(filter_flags);
-                       iwlcore_commit_rxon(priv);
-               }
-       }
-       mutex_unlock(&priv->mutex);
-
-       return count;
-}
-
-static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
-                  store_filter_flags);
-
-
-static ssize_t show_statistics(struct device *d,
-                              struct device_attribute *attr, char *buf)
-{
-       struct iwl_priv *priv = dev_get_drvdata(d);
-       u32 size = sizeof(struct iwl_notif_statistics);
-       u32 len = 0, ofs = 0;
-       u8 *data = (u8 *)&priv->statistics;
-       int rc = 0;
-
-       if (!iwl_is_alive(priv))
-               return -EAGAIN;
-
-       mutex_lock(&priv->mutex);
-       rc = iwl_send_statistics_request(priv, CMD_SYNC, false);
-       mutex_unlock(&priv->mutex);
-
-       if (rc) {
-               len = sprintf(buf,
-                             "Error sending statistics request: 0x%08X\n", rc);
-               return len;
-       }
-
-       while (size && (PAGE_SIZE - len)) {
-               hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
-                                  PAGE_SIZE - len, 1);
-               len = strlen(buf);
-               if (PAGE_SIZE - len)
-                       buf[len++] = '\n';
-
-               ofs += 16;
-               size -= min(size, 16U);
-       }
-
-       return len;
-}
-
-static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
-
 static ssize_t show_rts_ht_protection(struct device *d,
                             struct device_attribute *attr, char *buf)
 {
@@ -3307,6 +3232,13 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
        priv->ucode_trace.data = (unsigned long)priv;
        priv->ucode_trace.function = iwl_bg_ucode_trace;
 
+       if (priv->cfg->ops->lib->recover_from_tx_stall) {
+               init_timer(&priv->monitor_recover);
+               priv->monitor_recover.data = (unsigned long)priv;
+               priv->monitor_recover.function =
+                       priv->cfg->ops->lib->recover_from_tx_stall;
+       }
+
        if (!priv->cfg->use_isr_legacy)
                tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
                        iwl_irq_tasklet, (unsigned long)priv);
@@ -3322,10 +3254,13 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv)
 
        cancel_delayed_work_sync(&priv->init_alive_start);
        cancel_delayed_work(&priv->scan_check);
+       cancel_work_sync(&priv->start_internal_scan);
        cancel_delayed_work(&priv->alive_start);
        cancel_work_sync(&priv->beacon_update);
        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,
@@ -3363,9 +3298,6 @@ static int iwl_init_drv(struct iwl_priv *priv)
        mutex_init(&priv->mutex);
        mutex_init(&priv->sync_cmd_mutex);
 
-       /* Clear the driver's (not device's) station table */
-       iwl_clear_stations_table(priv);
-
        priv->ieee_channels = NULL;
        priv->ieee_rates = NULL;
        priv->band = IEEE80211_BAND_2GHZ;
@@ -3373,6 +3305,7 @@ static int iwl_init_drv(struct iwl_priv *priv)
        priv->iw_mode = NL80211_IFTYPE_STATION;
        priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
        priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
+       priv->_agn.agg_tids_count = 0;
 
        /* initialize force reset */
        priv->force_reset[IWL_RF_RESET].reset_duration =
@@ -3386,16 +3319,10 @@ static int iwl_init_drv(struct iwl_priv *priv)
 
        iwl_init_scan_params(priv);
 
-       iwl_reset_qos(priv);
-
-       priv->qos_data.qos_active = 0;
-       priv->qos_data.qos_cap.val = 0;
-
-       priv->rates_mask = IWL_RATES_MASK;
        /* Set the tx_power_user_lmt to the lowest power level
         * this value will get overwritten by channel max power avg
         * from eeprom */
-       priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MIN;
+       priv->tx_power_user_lmt = IWLAGN_TX_POWER_TARGET_POWER_MIN;
 
        ret = iwl_init_channel_map(priv);
        if (ret) {
@@ -3423,13 +3350,10 @@ static void iwl_uninit_drv(struct iwl_priv *priv)
        iwl_calib_free_results(priv);
        iwlcore_free_geos(priv);
        iwl_free_channel_map(priv);
-       kfree(priv->scan);
+       kfree(priv->scan_cmd);
 }
 
 static struct attribute *iwl_sysfs_entries[] = {
-       &dev_attr_flags.attr,
-       &dev_attr_filter_flags.attr,
-       &dev_attr_statistics.attr,
        &dev_attr_temperature.attr,
        &dev_attr_tx_power.attr,
        &dev_attr_rts_ht_protection.attr,
@@ -3454,13 +3378,14 @@ static struct ieee80211_ops iwl_hw_ops = {
        .configure_filter = iwl_configure_filter,
        .set_key = iwl_mac_set_key,
        .update_tkip_key = iwl_mac_update_tkip_key,
-       .get_stats = iwl_mac_get_stats,
        .conf_tx = iwl_mac_conf_tx,
        .reset_tsf = iwl_mac_reset_tsf,
        .bss_info_changed = iwl_bss_info_changed,
        .ampdu_action = iwl_mac_ampdu_action,
        .hw_scan = iwl_mac_hw_scan,
        .sta_notify = iwl_mac_sta_notify,
+       .sta_add = iwlagn_mac_sta_add,
+       .sta_remove = iwl_mac_sta_remove,
 };
 
 static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
@@ -3564,7 +3489,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
 
        iwl_hw_detect(priv);
-       IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s REV=0x%X\n",
+       IWL_INFO(priv, "Detected %s, REV=0x%X\n",
                priv->cfg->name, priv->hw_rev);
 
        /* We disable the RETRY_TIMEOUT register (0x41) to keep
@@ -3742,10 +3667,9 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
        iwl_dealloc_ucode_pci(priv);
 
        if (priv->rxq.bd)
-               iwl_rx_queue_free(priv, &priv->rxq);
-       iwl_hw_txq_ctx_free(priv);
+               iwlagn_rx_queue_free(priv, &priv->rxq);
+       iwlagn_hw_txq_ctx_free(priv);
 
-       iwl_clear_stations_table(priv);
        iwl_eeprom_free(priv);
 
 
@@ -3860,6 +3784,12 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
        {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)},
        {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)},
 
+/* 6x00 Series Gen2 */
+       {IWL_PCI_DEVICE(0x0082, 0x1201, iwl6000g2_2agn_cfg)},
+       {IWL_PCI_DEVICE(0x0082, 0x1301, iwl6000g2_2agn_cfg)},
+       {IWL_PCI_DEVICE(0x0082, 0x1321, iwl6000g2_2agn_cfg)},
+       {IWL_PCI_DEVICE(0x0085, 0x1311, iwl6000g2_2agn_cfg)},
+
 /* 6x50 WiFi/WiMax Series */
        {IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg)},
        {IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg)},
@@ -3941,3 +3871,33 @@ module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(debug, "debug output mask");
 #endif
 
+module_param_named(swcrypto50, iwlagn_mod_params.sw_crypto, bool, S_IRUGO);
+MODULE_PARM_DESC(swcrypto50,
+                "using crypto in software (default 0 [hardware]) (deprecated)");
+module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
+MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
+module_param_named(queues_num50,
+                  iwlagn_mod_params.num_of_queues, int, S_IRUGO);
+MODULE_PARM_DESC(queues_num50,
+                "number of hw queues in 50xx series (deprecated)");
+module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
+MODULE_PARM_DESC(queues_num, "number of hw queues.");
+module_param_named(11n_disable50, iwlagn_mod_params.disable_11n, int, S_IRUGO);
+MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n functionality (deprecated)");
+module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO);
+MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
+module_param_named(amsdu_size_8K50, iwlagn_mod_params.amsdu_size_8K,
+                  int, S_IRUGO);
+MODULE_PARM_DESC(amsdu_size_8K50,
+                "enable 8K amsdu size in 50XX series (deprecated)");
+module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
+                  int, S_IRUGO);
+MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
+module_param_named(fw_restart50, iwlagn_mod_params.restart_fw, int, S_IRUGO);
+MODULE_PARM_DESC(fw_restart50,
+                "restart firmware in case of error (deprecated)");
+module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
+MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
+module_param_named(
+       disable_hw_scan, iwlagn_mod_params.disable_hw_scan, int, S_IRUGO);
+MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");