18 files changed, 635 insertions, 173 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index 8414178bcff4..0db1fda94a65 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -105,6 +105,7 @@ static struct iwl_lib_ops iwl1000_lib = {
         .load_ucode = iwl5000_load_ucode,
         .dump_nic_event_log = iwl_dump_nic_event_log,
         .dump_nic_error_log = iwl_dump_nic_error_log,
+        .dump_csr = iwl_dump_csr,
         .init_alive_start = iwl5000_init_alive_start,
         .alive_notify = iwl5000_alive_notify,
         .send_tx_power = iwl5000_send_tx_power,
@@ -140,7 +141,7 @@ static struct iwl_lib_ops iwl1000_lib = {
          },
 };
 
-static struct iwl_ops iwl1000_ops = {
+static const struct iwl_ops iwl1000_ops = {
         .ucode = &iwl5000_ucode,
         .lib = &iwl1000_lib,
         .hcmd = &iwl5000_hcmd,
@@ -173,7 +174,6 @@ struct iwl_cfg iwl1000_bgn_cfg = {
         .use_rts_for_ht = true, /* use rts/cts protection */
         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
         .support_ct_kill_exit = true,
-        .sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl1000_bg_cfg = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 234891d8cc10..28ffe4c826d8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -2804,7 +2804,7 @@ static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {
         .rts_tx_cmd_flag = iwlcore_rts_tx_cmd_flag,
 };
 
-static struct iwl_ops iwl3945_ops = {
+static const struct iwl_ops iwl3945_ops = {
         .ucode = &iwl3945_ucode,
         .lib = &iwl3945_lib,
         .hcmd = &iwl3945_hcmd,
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index 531fa125f5a6..3ec2fe370b58 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -226,7 +226,8 @@ extern void iwl3945_rx_replenish(void *data);
 extern void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
                                         struct ieee80211_hdr *hdr,int left);
-extern void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log);
+extern int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
+                                       char **buf, bool display);
 extern void iwl3945_dump_nic_error_log(struct iwl_priv *priv);
 
 /*
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 9b4b8b5c7574..6a004abb5973 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2208,7 +2208,7 @@ static struct iwl_lib_ops iwl4965_lib = {
         },
 };
 
-static struct iwl_ops iwl4965_ops = {
+static const struct iwl_ops iwl4965_ops = {
         .ucode = &iwl4965_ucode,
         .lib = &iwl4965_lib,
         .hcmd = &iwl4965_hcmd,
@@ -2239,7 +2239,6 @@ struct iwl_cfg iwl4965_agn_cfg = {
         .broken_powersave = true,
         .led_compensation = 61,
         .chain_noise_num_beacons = IWL4965_CAL_NUM_BEACONS,
-        .sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 /* Module firmware */
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index de45f308b744..c6120f0b8f98 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -781,7 +781,7 @@ void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
 
         scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent;
 
-        if (txq->q.write_ptr < TFD_QUEUE_SIZE_BC_DUP)
+        if (write_ptr < TFD_QUEUE_SIZE_BC_DUP)
                 scd_bc_tbl[txq_id].
                         tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent;
 }
@@ -800,12 +800,12 @@ void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
         if (txq_id != IWL_CMD_QUEUE_NUM)
                 sta_id = txq->cmd[read_ptr]->cmd.tx.sta_id;
 
-        bc_ent =  cpu_to_le16(1 | (sta_id << 12));
+        bc_ent = cpu_to_le16(1 | (sta_id << 12));
         scd_bc_tbl[txq_id].tfd_offset[read_ptr] = bc_ent;
 
-        if (txq->q.write_ptr < TFD_QUEUE_SIZE_BC_DUP)
+        if (read_ptr < TFD_QUEUE_SIZE_BC_DUP)
                 scd_bc_tbl[txq_id].
-                        tfd_offset[TFD_QUEUE_SIZE_MAX + read_ptr] =  bc_ent;
+                        tfd_offset[TFD_QUEUE_SIZE_MAX + read_ptr] = bc_ent;
 }
 
 static int iwl5000_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid,
@@ -1466,6 +1466,7 @@ struct iwl_lib_ops iwl5000_lib = {
         .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
         .dump_nic_event_log = iwl_dump_nic_event_log,
         .dump_nic_error_log = iwl_dump_nic_error_log,
+        .dump_csr = iwl_dump_csr,
         .load_ucode = iwl5000_load_ucode,
         .init_alive_start = iwl5000_init_alive_start,
         .alive_notify = iwl5000_alive_notify,
@@ -1518,6 +1519,7 @@ static struct iwl_lib_ops iwl5150_lib = {
         .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
         .dump_nic_event_log = iwl_dump_nic_event_log,
         .dump_nic_error_log = iwl_dump_nic_error_log,
+        .dump_csr = iwl_dump_csr,
         .load_ucode = iwl5000_load_ucode,
         .init_alive_start = iwl5000_init_alive_start,
         .alive_notify = iwl5000_alive_notify,
@@ -1555,7 +1557,7 @@ static struct iwl_lib_ops iwl5150_lib = {
          },
 };
 
-static struct iwl_ops iwl5000_ops = {
+static const struct iwl_ops iwl5000_ops = {
         .ucode = &iwl5000_ucode,
         .lib = &iwl5000_lib,
         .hcmd = &iwl5000_hcmd,
@@ -1563,7 +1565,7 @@ static struct iwl_ops iwl5000_ops = {
         .led = &iwlagn_led_ops,
 };
 
-static struct iwl_ops iwl5150_ops = {
+static const struct iwl_ops iwl5150_ops = {
         .ucode = &iwl5000_ucode,
         .lib = &iwl5150_lib,
         .hcmd = &iwl5000_hcmd,
@@ -1600,7 +1602,6 @@ struct iwl_cfg iwl5300_agn_cfg = {
         .led_compensation = 51,
         .use_rts_for_ht = true, /* use rts/cts protection */
         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-        .sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl5100_bgn_cfg = {
@@ -1671,7 +1672,6 @@ struct iwl_cfg iwl5100_agn_cfg = {
         .led_compensation = 51,
         .use_rts_for_ht = true, /* use rts/cts protection */
         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-        .sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl5350_agn_cfg = {
@@ -1696,7 +1696,6 @@ struct iwl_cfg iwl5350_agn_cfg = {
         .led_compensation = 51,
         .use_rts_for_ht = true, /* use rts/cts protection */
         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-        .sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl5150_agn_cfg = {
@@ -1721,7 +1720,6 @@ struct iwl_cfg iwl5150_agn_cfg = {
         .led_compensation = 51,
         .use_rts_for_ht = true, /* use rts/cts protection */
         .chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
-        .sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl5150_abg_cfg = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 74e571049273..a5a0ed4817a4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -215,6 +215,7 @@ static struct iwl_lib_ops iwl6000_lib = {
         .load_ucode = iwl5000_load_ucode,
         .dump_nic_event_log = iwl_dump_nic_event_log,
         .dump_nic_error_log = iwl_dump_nic_error_log,
+        .dump_csr = iwl_dump_csr,
         .init_alive_start = iwl5000_init_alive_start,
         .alive_notify = iwl5000_alive_notify,
         .send_tx_power = iwl5000_send_tx_power,
@@ -252,7 +253,7 @@ static struct iwl_lib_ops iwl6000_lib = {
          },
 };
 
-static struct iwl_ops iwl6000_ops = {
+static const struct iwl_ops iwl6000_ops = {
         .ucode = &iwl5000_ucode,
         .lib = &iwl6000_lib,
         .hcmd = &iwl5000_hcmd,
@@ -267,7 +268,7 @@ static struct iwl_hcmd_utils_ops iwl6050_hcmd_utils = {
         .calc_rssi = iwl5000_calc_rssi,
 };
 
-static struct iwl_ops iwl6050_ops = {
+static const struct iwl_ops iwl6050_ops = {
         .ucode = &iwl5000_ucode,
         .lib = &iwl6000_lib,
         .hcmd = &iwl5000_hcmd,
@@ -306,7 +307,6 @@ struct iwl_cfg iwl6000i_2agn_cfg = {
         .supports_idle = true,
         .adv_thermal_throttle = true,
         .support_ct_kill_exit = true,
-        .sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 struct iwl_cfg iwl6000i_2abg_cfg = {
@@ -395,7 +395,6 @@ struct iwl_cfg iwl6050_2agn_cfg = {
         .supports_idle = true,
         .adv_thermal_throttle = true,
         .support_ct_kill_exit = true,
-        .sm_ps_mode = WLAN_HT_CAP_SM_PS_DYNAMIC,
 };
 
 struct iwl_cfg iwl6050_2abg_cfg = {
@@ -455,7 +454,6 @@ struct iwl_cfg iwl6000_3agn_cfg = {
         .supports_idle = true,
         .adv_thermal_throttle = true,
         .support_ct_kill_exit = true,
-        .sm_ps_mode = WLAN_HT_CAP_SM_PS_DISABLED,
 };
 
 MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX));
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 1c9866daf815..c78063312ea9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -657,6 +657,131 @@ static void iwl_bg_statistics_periodic(unsigned long data)
         iwl_send_statistics_request(priv, CMD_ASYNC, false);
 }
 
+
+static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
+                                        u32 start_idx, u32 num_events,
+                                        u32 mode)
+{
+        u32 i;
+        u32 ptr;        /* SRAM byte address of log data */
+        u32 ev, time, data; /* event log data */
+        unsigned long reg_flags;
+
+        if (mode == 0)
+                ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
+        else
+                ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
+
+        /* Make sure device is powered up for SRAM reads */
+        spin_lock_irqsave(&priv->reg_lock, reg_flags);
+        if (iwl_grab_nic_access(priv)) {
+                spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+                return;
+        }
+
+        /* Set starting address; reads will auto-increment */
+        _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr);
+        rmb();
+
+        /*
+         * "time" is actually "data" for mode 0 (no timestamp).
+         * place event id # at far right for easier visual parsing.
+         */
+        for (i = 0; i < num_events; i++) {
+                ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+                time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+                if (mode == 0) {
+                        trace_iwlwifi_dev_ucode_cont_event(priv,
+                                                        0, time, ev);
+                } else {
+                        data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+                        trace_iwlwifi_dev_ucode_cont_event(priv,
+                                                time, data, ev);
+                }
+        }
+        /* Allow device to power down */
+        iwl_release_nic_access(priv);
+        spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+}
+
+void iwl_continuous_event_trace(struct iwl_priv *priv)
+{
+        u32 capacity;   /* event log capacity in # entries */
+        u32 base;       /* SRAM byte address of event log header */
+        u32 mode;       /* 0 - no timestamp, 1 - timestamp recorded */
+        u32 num_wraps;  /* # times uCode wrapped to top of log */
+        u32 next_entry; /* index of next entry to be written by uCode */
+
+        if (priv->ucode_type == UCODE_INIT)
+                base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
+        else
+                base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+        if (priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
+                capacity = iwl_read_targ_mem(priv, base);
+                num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
+                mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
+                next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
+        } else
+                return;
+
+        if (num_wraps == priv->event_log.num_wraps) {
+                iwl_print_cont_event_trace(priv,
+                                       base, priv->event_log.next_entry,
+                                       next_entry - priv->event_log.next_entry,
+                                       mode);
+                priv->event_log.non_wraps_count++;
+        } else {
+                if ((num_wraps - priv->event_log.num_wraps) > 1)
+                        priv->event_log.wraps_more_count++;
+                else
+                        priv->event_log.wraps_once_count++;
+                trace_iwlwifi_dev_ucode_wrap_event(priv,
+                                num_wraps - priv->event_log.num_wraps,
+                                next_entry, priv->event_log.next_entry);
+                if (next_entry < priv->event_log.next_entry) {
+                        iwl_print_cont_event_trace(priv, base,
+                               priv->event_log.next_entry,
+                               capacity - priv->event_log.next_entry,
+                               mode);
+
+                        iwl_print_cont_event_trace(priv, base, 0,
+                                next_entry, mode);
+                } else {
+                        iwl_print_cont_event_trace(priv, base,
+                               next_entry, capacity - next_entry,
+                               mode);
+
+                        iwl_print_cont_event_trace(priv, base, 0,
+                                next_entry, mode);
+                }
+        }
+        priv->event_log.num_wraps = num_wraps;
+        priv->event_log.next_entry = next_entry;
+}
+
+/**
+ * iwl_bg_ucode_trace - Timer callback to log ucode event
+ *
+ * The timer is continually set to execute every
+ * UCODE_TRACE_PERIOD milliseconds after the last timer expired
+ * this function is to perform continuous uCode event logging operation
+ * if enabled
+ */
+static void iwl_bg_ucode_trace(unsigned long data)
+{
+        struct iwl_priv *priv = (struct iwl_priv *)data;
+
+        if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+                return;
+
+        if (priv->event_log.ucode_trace) {
+                iwl_continuous_event_trace(priv);
+                /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
+                mod_timer(&priv->ucode_trace,
+                         jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
+        }
+}
+
 static void iwl_rx_beacon_notif(struct iwl_priv *priv,
                                 struct iwl_rx_mem_buffer *rxb)
 {
@@ -689,12 +814,14 @@ static void iwl_rx_card_state_notif(struct iwl_priv *priv,
         u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
         unsigned long status = priv->status;
 
-        IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n",
+        IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s CT:%s\n",
                           (flags & HW_CARD_DISABLED) ? "Kill" : "On",
-                          (flags & SW_CARD_DISABLED) ? "Kill" : "On");
+                          (flags & SW_CARD_DISABLED) ? "Kill" : "On",
+                          (flags & CT_CARD_DISABLED) ?
+                          "Reached" : "Not reached");
 
         if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
-                     RF_CARD_DISABLED)) {
+                     CT_CARD_DISABLED)) {
 
                 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
                             CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
@@ -708,10 +835,10 @@ static void iwl_rx_card_state_notif(struct iwl_priv *priv,
                         iwl_write_direct32(priv, HBUS_TARG_MBX_C,
                                         HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
                 }
-                if (flags & RF_CARD_DISABLED)
+                if (flags & CT_CARD_DISABLED)
                         iwl_tt_enter_ct_kill(priv);
         }
-        if (!(flags & RF_CARD_DISABLED))
+        if (!(flags & CT_CARD_DISABLED))
                 iwl_tt_exit_ct_kill(priv);
 
         if (flags & HW_CARD_DISABLED)
@@ -1705,8 +1832,9 @@ void iwl_dump_nic_error_log(struct iwl_priv *priv)
  * iwl_print_event_log - Dump error event log to syslog
  *
  */
-static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
-                                u32 num_events, u32 mode)
+static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
+                               u32 num_events, u32 mode,
+                               int pos, char **buf, size_t bufsz)
 {
         u32 i;
         u32 base;       /* SRAM byte address of event log header */
@@ -1716,7 +1844,7 @@ static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
         unsigned long reg_flags;
 
         if (num_events == 0)
-                return;
+                return pos;
         if (priv->ucode_type == UCODE_INIT)
                 base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
         else
@@ -1744,27 +1872,44 @@ static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
                 time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
                 if (mode == 0) {
                         /* data, ev */
-                        trace_iwlwifi_dev_ucode_event(priv, 0, time, ev);
-                        IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev);
+                        if (bufsz) {
+                                pos += scnprintf(*buf + pos, bufsz - pos,
+                                                "EVT_LOG:0x%08x:%04u\n",
+                                                time, ev);
+                        } else {
+                                trace_iwlwifi_dev_ucode_event(priv, 0,
+                                        time, ev);
+                                IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n",
+                                        time, ev);
+                        }
                 } else {
                         data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
-                        IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
+                        if (bufsz) {
+                                pos += scnprintf(*buf + pos, bufsz - pos,
+                                                "EVT_LOGT:%010u:0x%08x:%04u\n",
+                                                 time, data, ev);
+                        } else {
+                                IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
                                         time, data, ev);
-                        trace_iwlwifi_dev_ucode_event(priv, time, data, ev);
+                                trace_iwlwifi_dev_ucode_event(priv, time,
+                                        data, ev);
+                        }
                 }
         }
 
         /* Allow device to power down */
         iwl_release_nic_access(priv);
         spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+        return pos;
 }
 
 /**
  * iwl_print_last_event_logs - Dump the newest # of event log to syslog
  */
-static void iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
-                                      u32 num_wraps, u32 next_entry,
-                                      u32 size, u32 mode)
+static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
+                                    u32 num_wraps, u32 next_entry,
+                                    u32 size, u32 mode,
+                                    int pos, char **buf, size_t bufsz)
 {
         /*
          * display the newest DEFAULT_LOG_ENTRIES entries
@@ -1772,21 +1917,26 @@ static void iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
          */
         if (num_wraps) {
                 if (next_entry < size) {
-                        iwl_print_event_log(priv,
-                                        capacity - (size - next_entry),
-                                        size - next_entry, mode);
-                        iwl_print_event_log(priv, 0,
-                                    next_entry, mode);
+                        pos = iwl_print_event_log(priv,
+                                                capacity - (size - next_entry),
+                                                size - next_entry, mode,
+                                                pos, buf, bufsz);
+                        pos = iwl_print_event_log(priv, 0,
+                                                  next_entry, mode,
+                                                  pos, buf, bufsz);
                 } else
-                        iwl_print_event_log(priv, next_entry - size,
-                                    size, mode);
+                        pos = iwl_print_event_log(priv, next_entry - size,
+                                                  size, mode, pos, buf, bufsz);
         } else {
-                if (next_entry < size)
-                        iwl_print_event_log(priv, 0, next_entry, mode);
-                else
-                        iwl_print_event_log(priv, next_entry - size,
-                                            size, mode);
+                if (next_entry < size) {
+                        pos = iwl_print_event_log(priv, 0, next_entry,
+                                                  mode, pos, buf, bufsz);
+                } else {
+                        pos = iwl_print_event_log(priv, next_entry - size,
+                                                  size, mode, pos, buf, bufsz);
+                }
         }
+        return pos;
 }
 
 /* For sanity check only.  Actual size is determined by uCode, typ. 512 */
@@ -1794,7 +1944,8 @@ static void iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
 
 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
 
-void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
+int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
+                            char **buf, bool display)
 {
         u32 base;       /* SRAM byte address of event log header */
         u32 capacity;   /* event log capacity in # entries */
@@ -1802,6 +1953,8 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
         u32 num_wraps;  /* # times uCode wrapped to top of log */
         u32 next_entry; /* index of next entry to be written by uCode */
         u32 size;       /* # entries that we'll print */
+        int pos = 0;
+        size_t bufsz = 0;
 
         if (priv->ucode_type == UCODE_INIT)
                 base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
@@ -1812,7 +1965,7 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
                 IWL_ERR(priv,
                         "Invalid event log pointer 0x%08X for %s uCode\n",
                         base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT");
-                return;
+                return pos;
         }
 
         /* event log header */
@@ -1838,7 +1991,7 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
         /* bail out if nothing in log */
         if (size == 0) {
                 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
-                return;
+                return pos;
         }
 
 #ifdef CONFIG_IWLWIFI_DEBUG
@@ -1853,6 +2006,15 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
                 size);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
+        if (display) {
+                if (full_log)
+                        bufsz = capacity * 48;
+                else
+                        bufsz = size * 48;
+                *buf = kmalloc(bufsz, GFP_KERNEL);
+                if (!*buf)
+                        return pos;
+        }
         if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) {
                 /*
                  * if uCode has wrapped back to top of log,
@@ -1860,17 +2022,22 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
                  * i.e the next one that uCode would fill.
                  */
                 if (num_wraps)
-                        iwl_print_event_log(priv, next_entry,
-                                            capacity - next_entry, mode);
+                        pos = iwl_print_event_log(priv, next_entry,
+                                                capacity - next_entry, mode,
+                                                pos, buf, bufsz);
                 /* (then/else) start at top of log */
-                iwl_print_event_log(priv, 0, next_entry, mode);
+                pos = iwl_print_event_log(priv, 0,
+                                          next_entry, mode, pos, buf, bufsz);
         } else
-                iwl_print_last_event_logs(priv, capacity, num_wraps,
-                                        next_entry, size, mode);
+                pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
+                                                next_entry, size, mode,
+                                                pos, buf, bufsz);
 #else
-        iwl_print_last_event_logs(priv, capacity, num_wraps,
-                                next_entry, size, mode);
+        pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
+                                        next_entry, size, mode,
+                                        pos, buf, bufsz);
 #endif
+        return pos;
 }
 
 /**
@@ -2456,6 +2623,10 @@ static int iwl_setup_mac(struct iwl_priv *priv)
                 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
                              IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
 
+        if (priv->cfg->sku & IWL_SKU_N)
+                hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
+                             IEEE80211_HW_SUPPORTS_STATIC_SMPS;
+
         hw->sta_data_size = sizeof(struct iwl_station_priv);
         hw->wiphy->interface_modes =
                 BIT(NL80211_IFTYPE_STATION) |
@@ -2784,6 +2955,9 @@ static int iwl_mac_ampdu_action(struct ieee80211_hw *hw,
                         return 0;
                 else
                         return ret;
+        case IEEE80211_AMPDU_TX_OPERATIONAL:
+                /* do nothing */
+                return -EOPNOTSUPP;
         default:
                 IWL_DEBUG_HT(priv, "unknown\n");
                 return -EINVAL;
@@ -3126,6 +3300,10 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
         priv->statistics_periodic.data = (unsigned long)priv;
         priv->statistics_periodic.function = iwl_bg_statistics_periodic;
 
+        init_timer(&priv->ucode_trace);
+        priv->ucode_trace.data = (unsigned long)priv;
+        priv->ucode_trace.function = iwl_bg_ucode_trace;
+
         if (!priv->cfg->use_isr_legacy)
                 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
                         iwl_irq_tasklet, (unsigned long)priv);
@@ -3144,6 +3322,7 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv)
         cancel_delayed_work(&priv->alive_start);
         cancel_work_sync(&priv->beacon_update);
         del_timer_sync(&priv->statistics_periodic);
+        del_timer_sync(&priv->ucode_trace);
 }
 
 static void iwl_init_hw_rates(struct iwl_priv *priv,
@@ -3188,6 +3367,7 @@ static int iwl_init_drv(struct iwl_priv *priv)
         priv->band = IEEE80211_BAND_2GHZ;
 
         priv->iw_mode = NL80211_IFTYPE_STATION;
+        priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
 
         /* Choose which receivers/antennas to use */
         if (priv->cfg->ops->hcmd->set_rxon_chain)
diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.c b/drivers/net/wireless/iwlwifi/iwl-calib.c
index 95a57b36a7ea..dc61906290e8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-calib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-calib.c
@@ -414,7 +414,6 @@ static int iwl_sens_auto_corr_ofdm(struct iwl_priv *priv,
 /* Prepare a SENSITIVITY_CMD, send to uCode if values have changed */
 static int iwl_sensitivity_write(struct iwl_priv *priv)
 {
-        int ret = 0;
         struct iwl_sensitivity_cmd cmd ;
         struct iwl_sensitivity_data *data = NULL;
         struct iwl_host_cmd cmd_out = {
@@ -477,11 +476,7 @@ static int iwl_sensitivity_write(struct iwl_priv *priv)
         memcpy(&(priv->sensitivity_tbl[0]), &(cmd.table[0]),
                sizeof(u16)*HD_TABLE_SIZE);
 
-        ret = iwl_send_cmd(priv, &cmd_out);
-        if (ret)
-                IWL_ERR(priv, "SENSITIVITY_CMD failed\n");
-
-        return ret;
+        return iwl_send_cmd(priv, &cmd_out);
 }
 
 void iwl_init_sensitivity(struct iwl_priv *priv)
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index e91507531923..3320cce3d57b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -120,7 +120,6 @@ enum {
         CALIBRATION_COMPLETE_NOTIFICATION = 0x67,
 
         /* 802.11h related */
-        RADAR_NOTIFICATION = 0x70,      /* not used */
         REPLY_QUIET_CMD = 0x71,         /* not used */
         REPLY_CHANNEL_SWITCH = 0x72,
         CHANNEL_SWITCH_NOTIFICATION = 0x73,
@@ -2510,7 +2509,7 @@ struct iwl_card_state_notif {
 
 #define HW_CARD_DISABLED   0x01
 #define SW_CARD_DISABLED   0x02
-#define RF_CARD_DISABLED   0x04
+#define CT_CARD_DISABLED   0x04
 #define RXON_CARD_DISABLED 0x10
 
 struct iwl_ct_kill_config {
@@ -2984,7 +2983,7 @@ struct statistics_rx_ht_phy {
         __le32 agg_crc32_good;
         __le32 agg_mpdu_cnt;
         __le32 agg_cnt;
-        __le32 reserved2;
+        __le32 unsupport_mcs;
 } __attribute__ ((packed));
 
 #define INTERFERENCE_DATA_AVAILABLE      cpu_to_le32(1)
@@ -3087,8 +3086,8 @@ struct statistics_div {
 } __attribute__ ((packed));
 
 struct statistics_general {
-        __le32 temperature;
-        __le32 temperature_m;
+        __le32 temperature;   /* radio temperature */
+        __le32 temperature_m; /* for 5000 and up, this is radio voltage */
         struct statistics_dbg dbg;
         __le32 sleep_time;
         __le32 slots_out;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 5461f105bd2d..5b56307a3812 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -450,8 +450,6 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
         if (priv->cfg->ht_greenfield_support)
                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
         ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
-        ht_info->cap |= (IEEE80211_HT_CAP_SM_PS &
-                             (priv->cfg->sm_ps_mode << 2));
         max_bit_rate = MAX_BIT_RATE_20_MHZ;
         if (priv->hw_params.ht40_channel & BIT(band)) {
                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
@@ -636,7 +634,7 @@ EXPORT_SYMBOL(iwlcore_rts_tx_cmd_flag);
 
 static bool is_single_rx_stream(struct iwl_priv *priv)
 {
-        return !priv->current_ht_config.is_ht ||
+        return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC ||
                priv->current_ht_config.single_chain_sufficient;
 }
 
@@ -1003,28 +1001,18 @@ static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
  */
 static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
 {
-        int idle_cnt = active_cnt;
-        bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
-
-        /* # Rx chains when idling and maybe trying to save power */
-        switch (priv->cfg->sm_ps_mode) {
-        case WLAN_HT_CAP_SM_PS_STATIC:
-                idle_cnt = (is_cam) ? active_cnt : IWL_NUM_IDLE_CHAINS_SINGLE;
-                break;
-        case WLAN_HT_CAP_SM_PS_DYNAMIC:
-                idle_cnt = (is_cam) ? IWL_NUM_IDLE_CHAINS_DUAL :
-                        IWL_NUM_IDLE_CHAINS_SINGLE;
-                break;
-        case WLAN_HT_CAP_SM_PS_DISABLED:
-                break;
-        case WLAN_HT_CAP_SM_PS_INVALID:
+        /* # Rx chains when idling, depending on SMPS mode */
+        switch (priv->current_ht_config.smps) {
+        case IEEE80211_SMPS_STATIC:
+        case IEEE80211_SMPS_DYNAMIC:
+                return IWL_NUM_IDLE_CHAINS_SINGLE;
+        case IEEE80211_SMPS_OFF:
+                return active_cnt;
         default:
-                IWL_ERR(priv, "invalid sm_ps mode %u\n",
-                        priv->cfg->sm_ps_mode);
-                WARN_ON(1);
-                break;
+                WARN(1, "invalid SMPS mode %d",
+                     priv->current_ht_config.smps);
+                return active_cnt;
         }
-        return idle_cnt;
 }
 
 /* up to 4 chains */
@@ -1363,7 +1351,9 @@ void iwl_irq_handle_error(struct iwl_priv *priv)
         clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
 
         priv->cfg->ops->lib->dump_nic_error_log(priv);
-        priv->cfg->ops->lib->dump_nic_event_log(priv, false);
+        if (priv->cfg->ops->lib->dump_csr)
+                priv->cfg->ops->lib->dump_csr(priv);
+        priv->cfg->ops->lib->dump_nic_event_log(priv, false, NULL, false);
 #ifdef CONFIG_IWLWIFI_DEBUG
         if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS)
                 iwl_print_rx_config_cmd(priv);
@@ -2599,12 +2589,12 @@ int iwl_set_mode(struct iwl_priv *priv, int mode)
 EXPORT_SYMBOL(iwl_set_mode);
 
 int iwl_mac_add_interface(struct ieee80211_hw *hw,
-                                 struct ieee80211_if_init_conf *conf)
+                                 struct ieee80211_vif *vif)
 {
         struct iwl_priv *priv = hw->priv;
         unsigned long flags;
 
-        IWL_DEBUG_MAC80211(priv, "enter: type %d\n", conf->type);
+        IWL_DEBUG_MAC80211(priv, "enter: type %d\n", vif->type);
 
         if (priv->vif) {
                 IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n");
@@ -2612,19 +2602,19 @@ int iwl_mac_add_interface(struct ieee80211_hw *hw,
         }
 
         spin_lock_irqsave(&priv->lock, flags);
-        priv->vif = conf->vif;
-        priv->iw_mode = conf->type;
+        priv->vif = vif;
+        priv->iw_mode = vif->type;
 
         spin_unlock_irqrestore(&priv->lock, flags);
 
         mutex_lock(&priv->mutex);
 
-        if (conf->mac_addr) {
-                IWL_DEBUG_MAC80211(priv, "Set %pM\n", conf->mac_addr);
-                memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
+        if (vif->addr) {
+                IWL_DEBUG_MAC80211(priv, "Set %pM\n", vif->addr);
+                memcpy(priv->mac_addr, vif->addr, ETH_ALEN);
         }
 
-        if (iwl_set_mode(priv, conf->type) == -EAGAIN)
+        if (iwl_set_mode(priv, vif->type) == -EAGAIN)
                 /* we are not ready, will run again when ready */
                 set_bit(STATUS_MODE_PENDING, &priv->status);
 
@@ -2636,7 +2626,7 @@ int iwl_mac_add_interface(struct ieee80211_hw *hw,
 EXPORT_SYMBOL(iwl_mac_add_interface);
 
 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
-                                     struct ieee80211_if_init_conf *conf)
+                                     struct ieee80211_vif *vif)
 {
         struct iwl_priv *priv = hw->priv;
 
@@ -2649,7 +2639,7 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw,
                 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
                 iwlcore_commit_rxon(priv);
         }
-        if (priv->vif == conf->vif) {
+        if (priv->vif == vif) {
                 priv->vif = NULL;
                 memset(priv->bssid, 0, ETH_ALEN);
         }
@@ -2689,6 +2679,21 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
                 IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
         }
 
+        if (changed & (IEEE80211_CONF_CHANGE_SMPS |
+                       IEEE80211_CONF_CHANGE_CHANNEL)) {
+                /* mac80211 uses static for non-HT which is what we want */
+                priv->current_ht_config.smps = conf->smps_mode;
+
+                /*
+                 * Recalculate chain counts.
+                 *
+                 * If monitor mode is enabled then mac80211 will
+                 * set up the SM PS mode to OFF if an HT channel is
+                 * configured.
+                 */
+                if (priv->cfg->ops->hcmd->set_rxon_chain)
+                        priv->cfg->ops->hcmd->set_rxon_chain(priv);
+        }
 
         /* during scanning mac80211 will delay channel setting until
          * scan finish with changed = 0
@@ -2785,10 +2790,6 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
                 iwl_set_tx_power(priv, conf->power_level, false);
         }
 
-        /* call to ensure that 4965 rx_chain is set properly in monitor mode */
-        if (priv->cfg->ops->hcmd->set_rxon_chain)
-                priv->cfg->ops->hcmd->set_rxon_chain(priv);
-
         if (!iwl_is_ready(priv)) {
                 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
                 goto out;
@@ -3196,6 +3197,77 @@ void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
 EXPORT_SYMBOL(iwl_update_stats);
 #endif
 
+const static char *get_csr_string(int cmd)
+{
+        switch (cmd) {
+                IWL_CMD(CSR_HW_IF_CONFIG_REG);
+                IWL_CMD(CSR_INT_COALESCING);
+                IWL_CMD(CSR_INT);
+                IWL_CMD(CSR_INT_MASK);
+                IWL_CMD(CSR_FH_INT_STATUS);
+                IWL_CMD(CSR_GPIO_IN);
+                IWL_CMD(CSR_RESET);
+                IWL_CMD(CSR_GP_CNTRL);
+                IWL_CMD(CSR_HW_REV);
+                IWL_CMD(CSR_EEPROM_REG);
+                IWL_CMD(CSR_EEPROM_GP);
+                IWL_CMD(CSR_OTP_GP_REG);
+                IWL_CMD(CSR_GIO_REG);
+                IWL_CMD(CSR_GP_UCODE_REG);
+                IWL_CMD(CSR_GP_DRIVER_REG);
+                IWL_CMD(CSR_UCODE_DRV_GP1);
+                IWL_CMD(CSR_UCODE_DRV_GP2);
+                IWL_CMD(CSR_LED_REG);
+                IWL_CMD(CSR_DRAM_INT_TBL_REG);
+                IWL_CMD(CSR_GIO_CHICKEN_BITS);
+                IWL_CMD(CSR_ANA_PLL_CFG);
+                IWL_CMD(CSR_HW_REV_WA_REG);
+                IWL_CMD(CSR_DBG_HPET_MEM_REG);
+        default:
+                return "UNKNOWN";
+
+        }
+}
+
+void iwl_dump_csr(struct iwl_priv *priv)
+{
+        int i;
+        u32 csr_tbl[] = {
+                CSR_HW_IF_CONFIG_REG,
+                CSR_INT_COALESCING,
+                CSR_INT,
+                CSR_INT_MASK,
+                CSR_FH_INT_STATUS,
+                CSR_GPIO_IN,
+                CSR_RESET,
+                CSR_GP_CNTRL,
+                CSR_HW_REV,
+                CSR_EEPROM_REG,
+                CSR_EEPROM_GP,
+                CSR_OTP_GP_REG,
+                CSR_GIO_REG,
+                CSR_GP_UCODE_REG,
+                CSR_GP_DRIVER_REG,
+                CSR_UCODE_DRV_GP1,
+                CSR_UCODE_DRV_GP2,
+                CSR_LED_REG,
+                CSR_DRAM_INT_TBL_REG,
+                CSR_GIO_CHICKEN_BITS,
+                CSR_ANA_PLL_CFG,
+                CSR_HW_REV_WA_REG,
+                CSR_DBG_HPET_MEM_REG
+        };
+        IWL_ERR(priv, "CSR values:\n");
+        IWL_ERR(priv, "(2nd byte of CSR_INT_COALESCING is "
+                "CSR_INT_PERIODIC_REG)\n");
+        for (i = 0; i <  ARRAY_SIZE(csr_tbl); i++) {
+                IWL_ERR(priv, "  %25s: 0X%08x\n",
+                        get_csr_string(csr_tbl[i]),
+                        iwl_read32(priv, csr_tbl[i]));
+        }
+}
+EXPORT_SYMBOL(iwl_dump_csr);
+
 #ifdef CONFIG_PM
 
 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state)
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 675b7df632fc..8deb83bfe182 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -63,8 +63,6 @@
 #ifndef __iwl_core_h__
 #define __iwl_core_h__
 
-#include <linux/utsrelease.h>
-
 /************************
  * forward declarations *
  ************************/
@@ -72,7 +70,7 @@ struct iwl_host_cmd;
 struct iwl_cmd;
 
 
-#define IWLWIFI_VERSION UTS_RELEASE "-k"
+#define IWLWIFI_VERSION "in-tree:"
 #define DRV_COPYRIGHT   "Copyright(c) 2003-2009 Intel Corporation"
 #define DRV_AUTHOR     "<ilw@linux.intel.com>"
 
@@ -169,8 +167,10 @@ struct iwl_lib_ops {
         int (*is_valid_rtc_data_addr)(u32 addr);
         /* 1st ucode load */
         int (*load_ucode)(struct iwl_priv *priv);
-        void (*dump_nic_event_log)(struct iwl_priv *priv, bool full_log);
+        int (*dump_nic_event_log)(struct iwl_priv *priv,
+                                  bool full_log, char **buf, bool display);
         void (*dump_nic_error_log)(struct iwl_priv *priv);
+        void (*dump_csr)(struct iwl_priv *priv);
         int (*set_channel_switch)(struct iwl_priv *priv, u16 channel);
         /* power management */
         struct iwl_apm_ops apm_ops;
@@ -230,7 +230,6 @@ struct iwl_mod_params {
  * @chain_noise_num_beacons: number of beacons used to compute chain noise
  * @adv_thermal_throttle: support advance thermal throttle
  * @support_ct_kill_exit: support ct kill exit condition
- * @sm_ps_mode: spatial multiplexing power save mode
  * @support_wimax_coexist: support wimax/wifi co-exist
  *
  * We enable the driver to be backward compatible wrt API version. The
@@ -287,7 +286,6 @@ struct iwl_cfg {
         const bool supports_idle;
         bool adv_thermal_throttle;
         bool support_ct_kill_exit;
-        u8 sm_ps_mode;
         const bool support_wimax_coexist;
 };
 
@@ -332,9 +330,9 @@ int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
 int iwl_commit_rxon(struct iwl_priv *priv);
 int iwl_set_mode(struct iwl_priv *priv, int mode);
 int iwl_mac_add_interface(struct ieee80211_hw *hw,
-                                 struct ieee80211_if_init_conf *conf);
+                          struct ieee80211_vif *vif);
 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
-                                 struct ieee80211_if_init_conf *conf);
+                              struct ieee80211_vif *vif);
 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed);
 void iwl_config_ap(struct iwl_priv *priv);
 int iwl_mac_get_tx_stats(struct ieee80211_hw *hw,
@@ -581,7 +579,9 @@ int iwl_pci_resume(struct pci_dev *pdev);
 *  Error Handling Debugging
 ******************************************************/
 void iwl_dump_nic_error_log(struct iwl_priv *priv);
-void iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log);
+int iwl_dump_nic_event_log(struct iwl_priv *priv,
+                           bool full_log, char **buf, bool display);
+void iwl_dump_csr(struct iwl_priv *priv);
 #ifdef CONFIG_IWLWIFI_DEBUG
 void iwl_print_rx_config_cmd(struct iwl_priv *priv);
 #else
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index d61293ab67c9..58e0462cafa3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -109,6 +109,8 @@ struct iwl_debugfs {
                 struct dentry *file_power_save_status;
                 struct dentry *file_clear_ucode_statistics;
                 struct dentry *file_clear_traffic_statistics;
+                struct dentry *file_csr;
+                struct dentry *file_ucode_tracing;
         } dbgfs_debug_files;
         u32 sram_offset;
         u32 sram_len;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 21e0f6699daf..4a2ac9311ba8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -125,7 +125,7 @@ static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
                                                 char __user *user_buf,
                                                 size_t count, loff_t *ppos) {
 
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         char *buf;
         int pos = 0;
 
@@ -184,7 +184,7 @@ static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
                                                 char __user *user_buf,
                                                 size_t count, loff_t *ppos) {
 
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         char *buf;
         int pos = 0;
         int cnt;
@@ -232,7 +232,7 @@ static ssize_t iwl_dbgfs_sram_read(struct file *file,
         ssize_t ret;
         int i;
         int pos = 0;
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         size_t bufsz;
 
         /* default is to dump the entire data segment */
@@ -306,7 +306,7 @@ static ssize_t iwl_dbgfs_sram_write(struct file *file,
 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
                                         size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         struct iwl_station_entry *station;
         int max_sta = priv->hw_params.max_stations;
         char *buf;
@@ -376,7 +376,7 @@ static ssize_t iwl_dbgfs_nvm_read(struct file *file,
                                        loff_t *ppos)
 {
         ssize_t ret;
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         int pos = 0, ofs = 0, buf_size = 0;
         const u8 *ptr;
         char *buf;
@@ -420,6 +420,23 @@ static ssize_t iwl_dbgfs_nvm_read(struct file *file,
         return ret;
 }
 
+static ssize_t iwl_dbgfs_log_event_read(struct file *file,
+                                         char __user *user_buf,
+                                         size_t count, loff_t *ppos)
+{
+        struct iwl_priv *priv = file->private_data;
+        char *buf;
+        int pos = 0;
+        ssize_t ret = -ENOMEM;
+
+        pos = priv->cfg->ops->lib->dump_nic_event_log(priv, true, &buf, true);
+        if (pos && buf) {
+                ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+                kfree(buf);
+        }
+        return ret;
+}
+
 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
                                         const char __user *user_buf,
                                         size_t count, loff_t *ppos)
@@ -436,7 +453,8 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file,
         if (sscanf(buf, "%d", &event_log_flag) != 1)
                 return -EFAULT;
         if (event_log_flag == 1)
-                priv->cfg->ops->lib->dump_nic_event_log(priv, true);
+                priv->cfg->ops->lib->dump_nic_event_log(priv, true,
+                                                        NULL, false);
 
         return count;
 }
@@ -446,7 +464,7 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
                                        size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         struct ieee80211_channel *channels = NULL;
         const struct ieee80211_supported_band *supp_band = NULL;
         int pos = 0, i, bufsz = PAGE_SIZE;
@@ -519,7 +537,7 @@ static ssize_t iwl_dbgfs_status_read(struct file *file,
                                                 char __user *user_buf,
                                                 size_t count, loff_t *ppos) {
 
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         char buf[512];
         int pos = 0;
         const size_t bufsz = sizeof(buf);
@@ -567,7 +585,7 @@ static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
                                         char __user *user_buf,
                                         size_t count, loff_t *ppos) {
 
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         int pos = 0;
         int cnt = 0;
         char *buf;
@@ -654,7 +672,7 @@ static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
                                        size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         int pos = 0, i;
         char buf[256];
         const size_t bufsz = sizeof(buf);
@@ -677,7 +695,7 @@ static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
                                   size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         int pos = 0;
         char buf[256];
         const size_t bufsz = sizeof(buf);
@@ -703,7 +721,7 @@ static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
                                 char __user *user_buf,
                                 size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
         struct iwl_tt_restriction *restriction;
         char buf[100];
@@ -763,7 +781,7 @@ static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
                                          char __user *user_buf,
                                          size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         char buf[100];
         int pos = 0;
         const size_t bufsz = sizeof(buf);
@@ -820,7 +838,7 @@ static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
                                                    char __user *user_buf,
                                                    size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         char buf[10];
         int pos, value;
         const size_t bufsz = sizeof(buf);
@@ -838,7 +856,7 @@ static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
                                                     char __user *user_buf,
                                                     size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         char buf[200];
         int pos = 0, i;
         const size_t bufsz = sizeof(buf);
@@ -859,7 +877,7 @@ static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 }
 
 DEBUGFS_READ_WRITE_FILE_OPS(sram);
-DEBUGFS_WRITE_FILE_OPS(log_event);
+DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 DEBUGFS_READ_FILE_OPS(nvm);
 DEBUGFS_READ_FILE_OPS(stations);
 DEBUGFS_READ_FILE_OPS(channels);
@@ -976,7 +994,7 @@ static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
                                                 char __user *user_buf,
                                                 size_t count, loff_t *ppos) {
 
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         struct iwl_tx_queue *txq;
         struct iwl_queue *q;
         char *buf;
@@ -1022,7 +1040,7 @@ static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
                                                 char __user *user_buf,
                                                 size_t count, loff_t *ppos) {
 
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         struct iwl_rx_queue *rxq = &priv->rxq;
         char buf[256];
         int pos = 0;
@@ -1068,7 +1086,7 @@ static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
                                         char __user *user_buf,
                                         size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         int pos = 0;
         char *buf;
         int bufsz = sizeof(struct statistics_rx_phy) * 20 +
@@ -1369,6 +1387,9 @@ static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
                          accum_ht->agg_mpdu_cnt);
         pos += scnprintf(buf + pos, bufsz - pos, "agg_cnt:\t\t%u\t\t\t%u\n",
                          le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt);
+        pos += scnprintf(buf + pos, bufsz - pos, "unsupport_mcs:\t\t%u\t\t\t%u\n",
+                         le32_to_cpu(ht->unsupport_mcs),
+                         accum_ht->unsupport_mcs);
 
         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
         kfree(buf);
@@ -1379,7 +1400,7 @@ static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
                                         char __user *user_buf,
                                         size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         int pos = 0;
         char *buf;
         int bufsz = (sizeof(struct statistics_tx) * 24) + 250;
@@ -1521,7 +1542,7 @@ static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
                                         char __user *user_buf,
                                         size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         int pos = 0;
         char *buf;
         int bufsz = sizeof(struct statistics_general) * 4 + 250;
@@ -1612,7 +1633,7 @@ static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
                                         char __user *user_buf,
                                         size_t count, loff_t *ppos) {
 
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         int pos = 0;
         int cnt = 0;
         char *buf;
@@ -1693,7 +1714,7 @@ static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
                                         char __user *user_buf,
                                         size_t count, loff_t *ppos) {
 
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         int pos = 0;
         int cnt = 0;
         char *buf;
@@ -1751,7 +1772,7 @@ static ssize_t iwl_dbgfs_tx_power_read(struct file *file,
                                         char __user *user_buf,
                                         size_t count, loff_t *ppos) {
 
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         char buf[128];
         int pos = 0;
         ssize_t ret;
@@ -1802,7 +1823,7 @@ static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
                                                     char __user *user_buf,
                                                     size_t count, loff_t *ppos)
 {
-        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        struct iwl_priv *priv = file->private_data;
         char buf[60];
         int pos = 0;
         const size_t bufsz = sizeof(buf);
@@ -1845,6 +1866,80 @@ static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
         return count;
 }
 
+static ssize_t iwl_dbgfs_csr_write(struct file *file,
+                                         const char __user *user_buf,
+                                         size_t count, loff_t *ppos)
+{
+        struct iwl_priv *priv = file->private_data;
+        char buf[8];
+        int buf_size;
+        int csr;
+
+        memset(buf, 0, sizeof(buf));
+        buf_size = min(count, sizeof(buf) -  1);
+        if (copy_from_user(buf, user_buf, buf_size))
+                return -EFAULT;
+        if (sscanf(buf, "%d", &csr) != 1)
+                return -EFAULT;
+
+        if (priv->cfg->ops->lib->dump_csr)
+                priv->cfg->ops->lib->dump_csr(priv);
+
+        return count;
+}
+
+static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
+                                        char __user *user_buf,
+                                        size_t count, loff_t *ppos) {
+
+        struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+        int pos = 0;
+        char buf[128];
+        const size_t bufsz = sizeof(buf);
+        ssize_t ret;
+
+        pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
+                        priv->event_log.ucode_trace ? "On" : "Off");
+        pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
+                        priv->event_log.non_wraps_count);
+        pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
+                        priv->event_log.wraps_once_count);
+        pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
+                        priv->event_log.wraps_more_count);
+
+        ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+        return ret;
+}
+
+static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
+                                         const char __user *user_buf,
+                                         size_t count, loff_t *ppos)
+{
+        struct iwl_priv *priv = file->private_data;
+        char buf[8];
+        int buf_size;
+        int trace;
+
+        memset(buf, 0, sizeof(buf));
+        buf_size = min(count, sizeof(buf) -  1);
+        if (copy_from_user(buf, user_buf, buf_size))
+                return -EFAULT;
+        if (sscanf(buf, "%d", &trace) != 1)
+                return -EFAULT;
+
+        if (trace) {
+                priv->event_log.ucode_trace = true;
+                /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
+                mod_timer(&priv->ucode_trace,
+                        jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
+        } else {
+                priv->event_log.ucode_trace = false;
+                del_timer_sync(&priv->ucode_trace);
+        }
+
+        return count;
+}
+
 DEBUGFS_READ_FILE_OPS(rx_statistics);
 DEBUGFS_READ_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -1859,6 +1954,8 @@ DEBUGFS_READ_FILE_OPS(tx_power);
 DEBUGFS_READ_FILE_OPS(power_save_status);
 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
+DEBUGFS_WRITE_FILE_OPS(csr);
+DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
 
 /*
  * Create the debugfs files and directories
@@ -1889,7 +1986,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
         DEBUGFS_ADD_DIR(debug, dbgfs->dir_drv);
         DEBUGFS_ADD_FILE(nvm, data, S_IRUSR);
         DEBUGFS_ADD_FILE(sram, data, S_IWUSR | S_IRUSR);
-        DEBUGFS_ADD_FILE(log_event, data, S_IWUSR);
+        DEBUGFS_ADD_FILE(log_event, data, S_IWUSR | S_IRUSR);
         DEBUGFS_ADD_FILE(stations, data, S_IRUSR);
         DEBUGFS_ADD_FILE(channels, data, S_IRUSR);
         DEBUGFS_ADD_FILE(status, data, S_IRUSR);
@@ -1909,12 +2006,14 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
         DEBUGFS_ADD_FILE(power_save_status, debug, S_IRUSR);
         DEBUGFS_ADD_FILE(clear_ucode_statistics, debug, S_IWUSR);
         DEBUGFS_ADD_FILE(clear_traffic_statistics, debug, S_IWUSR);
+        DEBUGFS_ADD_FILE(csr, debug, S_IWUSR);
         if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
                 DEBUGFS_ADD_FILE(ucode_rx_stats, debug, S_IRUSR);
                 DEBUGFS_ADD_FILE(ucode_tx_stats, debug, S_IRUSR);
                 DEBUGFS_ADD_FILE(ucode_general_stats, debug, S_IRUSR);
                 DEBUGFS_ADD_FILE(sensitivity, debug, S_IRUSR);
                 DEBUGFS_ADD_FILE(chain_noise, debug, S_IRUSR);
+                DEBUGFS_ADD_FILE(ucode_tracing, debug, S_IWUSR | S_IRUSR);
         }
         DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
         DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
@@ -1966,6 +2065,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
                         file_clear_ucode_statistics);
         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
                         file_clear_traffic_statistics);
+        DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_csr);
         if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
                 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
                         file_ucode_rx_stats);
@@ -1977,6 +2077,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
                         file_sensitivity);
                 DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
                         file_chain_noise);
+                DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
+                        file_ucode_tracing);
         }
         DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
         DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 3822cf53e368..70f0e79c8e4a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -512,6 +512,7 @@ struct iwl_ht_config {
         bool is_ht;
         bool is_40mhz;
         bool single_chain_sufficient;
+        enum ieee80211_smps_mode smps; /* current smps mode */
         /* BSS related data */
         u8 extension_chan_offset;
         u8 ht_protection;
@@ -984,6 +985,32 @@ struct iwl_switch_rxon {
         __le16 channel;
 };
 
+/*
+ * schedule the timer to wake up every UCODE_TRACE_PERIOD milliseconds
+ * to perform continuous uCode event logging operation if enabled
+ */
+#define UCODE_TRACE_PERIOD (100)
+
+/*
+ * iwl_event_log: current uCode event log position
+ *
+ * @ucode_trace: enable/disable ucode continuous trace timer
+ * @num_wraps: how many times the event buffer wraps
+ * @next_entry:  the entry just before the next one that uCode would fill
+ * @non_wraps_count: counter for no wrap detected when dump ucode events
+ * @wraps_once_count: counter for wrap once detected when dump ucode events
+ * @wraps_more_count: counter for wrap more than once detected
+ *                    when dump ucode events
+ */
+struct iwl_event_log {
+        bool ucode_trace;
+        u32 num_wraps;
+        u32 next_entry;
+        int non_wraps_count;
+        int wraps_once_count;
+        int wraps_more_count;
+};
+
 struct iwl_priv {
 
         /* ieee device used by generic ieee processing code */
@@ -1261,6 +1288,7 @@ struct iwl_priv {
         u32 disable_tx_power_cal;
         struct work_struct run_time_calib_work;
         struct timer_list statistics_periodic;
+        struct timer_list ucode_trace;
         bool hw_ready;
         /*For 3945*/
 #define IWL_DEFAULT_TX_POWER 0x0F
@@ -1268,6 +1296,8 @@ struct iwl_priv {
         struct iwl3945_notif_statistics statistics_39;
 
         u32 sta_supp_rates;
+
+        struct iwl_event_log event_log;
 }; /*iwl_priv */
 
 static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.c b/drivers/net/wireless/iwlwifi/iwl-devtrace.c
index 83cc4e500a96..36580d8d8b8d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-devtrace.c
+++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.c
@@ -37,4 +37,6 @@ EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_iowrite32);
 EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_rx);
 EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ucode_event);
 EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ucode_error);
+EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ucode_cont_event);
+EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ucode_wrap_event);
 #endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.h b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
index d9c7363b1bbb..ff4d012ce260 100644
--- a/drivers/net/wireless/iwlwifi/iwl-devtrace.h
+++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
@@ -91,6 +91,50 @@ TRACE_EVENT(iwlwifi_dev_iowrite32,
 );
 
 #undef TRACE_SYSTEM
+#define TRACE_SYSTEM iwlwifi_ucode
+
+TRACE_EVENT(iwlwifi_dev_ucode_cont_event,
+        TP_PROTO(struct iwl_priv *priv, u32 time, u32 data, u32 ev),
+        TP_ARGS(priv, time, data, ev),
+        TP_STRUCT__entry(
+                PRIV_ENTRY
+
+                __field(u32, time)
+                __field(u32, data)
+                __field(u32, ev)
+        ),
+        TP_fast_assign(
+                PRIV_ASSIGN;
+                __entry->time = time;
+                __entry->data = data;
+                __entry->ev = ev;
+        ),
+        TP_printk("[%p] EVT_LOGT:%010u:0x%08x:%04u",
+                  __entry->priv, __entry->time, __entry->data, __entry->ev)
+);
+
+TRACE_EVENT(iwlwifi_dev_ucode_wrap_event,
+        TP_PROTO(struct iwl_priv *priv, u32 wraps, u32 n_entry, u32 p_entry),
+        TP_ARGS(priv, wraps, n_entry, p_entry),
+        TP_STRUCT__entry(
+                PRIV_ENTRY
+
+                __field(u32, wraps)
+                __field(u32, n_entry)
+                __field(u32, p_entry)
+        ),
+        TP_fast_assign(
+                PRIV_ASSIGN;
+                __entry->wraps = wraps;
+                __entry->n_entry = n_entry;
+                __entry->p_entry = p_entry;
+        ),
+        TP_printk("[%p] wraps=#%02d n=0x%X p=0x%X",
+                  __entry->priv, __entry->wraps, __entry->n_entry,
+                  __entry->p_entry)
+);
+
+#undef TRACE_SYSTEM
 #define TRACE_SYSTEM iwlwifi
 
 TRACE_EVENT(iwlwifi_dev_hcmd,
diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
index 30e9ea6d54ec..87d684efe110 100644
--- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c
+++ b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
@@ -58,7 +58,6 @@ const char *get_cmd_string(u8 cmd)
                 IWL_CMD(COEX_PRIORITY_TABLE_CMD);
                 IWL_CMD(COEX_MEDIUM_NOTIFICATION);
                 IWL_CMD(COEX_EVENT_CMD);
-                IWL_CMD(RADAR_NOTIFICATION);
                 IWL_CMD(REPLY_QUIET_CMD);
                 IWL_CMD(REPLY_CHANNEL_SWITCH);
                 IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index f8e4e4b18d02..10b0aa8024c4 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -1518,8 +1518,9 @@ void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
  * iwl3945_print_event_log - Dump error event log to syslog
  *
  */
-static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
-                                u32 num_events, u32 mode)
+static int iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
+                                  u32 num_events, u32 mode,
+                                  int pos, char **buf, size_t bufsz)
 {
         u32 i;
         u32 base;       /* SRAM byte address of event log header */
@@ -1529,7 +1530,7 @@ static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
         unsigned long reg_flags;
 
         if (num_events == 0)
-                return;
+                return pos;
 
         base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
 
@@ -1555,26 +1556,43 @@ static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
                 time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
                 if (mode == 0) {
                         /* data, ev */
-                        IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
-                        trace_iwlwifi_dev_ucode_event(priv, 0, time, ev);
+                        if (bufsz) {
+                                pos += scnprintf(*buf + pos, bufsz - pos,
+                                                "0x%08x:%04u\n",
+                                                time, ev);
+                        } else {
+                                IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
+                                trace_iwlwifi_dev_ucode_event(priv, 0,
+                                                              time, ev);
+                        }
                 } else {
                         data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
-                        IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev);
-                        trace_iwlwifi_dev_ucode_event(priv, time, data, ev);
+                        if (bufsz) {
+                                pos += scnprintf(*buf + pos, bufsz - pos,
+                                                "%010u:0x%08x:%04u\n",
+                                                 time, data, ev);
+                        } else {
+                                IWL_ERR(priv, "%010u\t0x%08x\t%04u\n",
+                                        time, data, ev);
+                                trace_iwlwifi_dev_ucode_event(priv, time,
+                                                              data, ev);
+                        }
                 }
         }
 
         /* Allow device to power down */
         iwl_release_nic_access(priv);
         spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
+        return pos;
 }
 
 /**
  * iwl3945_print_last_event_logs - Dump the newest # of event log to syslog
  */
-static void iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
+static int iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
                                       u32 num_wraps, u32 next_entry,
-                                      u32 size, u32 mode)
+                                      u32 size, u32 mode,
+                                      int pos, char **buf, size_t bufsz)
 {
         /*
          * display the newest DEFAULT_LOG_ENTRIES entries
@@ -1582,21 +1600,28 @@ static void iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
          */
         if (num_wraps) {
                 if (next_entry < size) {
-                        iwl3945_print_event_log(priv,
-                                        capacity - (size - next_entry),
-                                        size - next_entry, mode);
-                        iwl3945_print_event_log(priv, 0,
-                                    next_entry, mode);
+                        pos = iwl3945_print_event_log(priv,
+                                             capacity - (size - next_entry),
+                                             size - next_entry, mode,
+                                             pos, buf, bufsz);
+                        pos = iwl3945_print_event_log(priv, 0,
+                                                      next_entry, mode,
+                                                      pos, buf, bufsz);
                 } else
-                        iwl3945_print_event_log(priv, next_entry - size,
-                                    size, mode);
+                        pos = iwl3945_print_event_log(priv, next_entry - size,
+                                                      size, mode,
+                                                      pos, buf, bufsz);
         } else {
                 if (next_entry < size)
-                        iwl3945_print_event_log(priv, 0, next_entry, mode);
+                        pos = iwl3945_print_event_log(priv, 0,
+                                                      next_entry, mode,
+                                                      pos, buf, bufsz);
                 else
-                        iwl3945_print_event_log(priv, next_entry - size,
-                                            size, mode);
+                        pos = iwl3945_print_event_log(priv, next_entry - size,
+                                                      size, mode,
+                                                      pos, buf, bufsz);
         }
+        return pos;
 }
 
 /* For sanity check only.  Actual size is determined by uCode, typ. 512 */
@@ -1604,7 +1629,8 @@ static void iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
 
 #define DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES (20)
 
-void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
+int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
+                            char **buf, bool display)
 {
         u32 base;       /* SRAM byte address of event log header */
         u32 capacity;   /* event log capacity in # entries */
@@ -1612,11 +1638,13 @@ void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
         u32 num_wraps;  /* # times uCode wrapped to top of log */
         u32 next_entry; /* index of next entry to be written by uCode */
         u32 size;       /* # entries that we'll print */
+        int pos = 0;
+        size_t bufsz = 0;
 
         base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
         if (!iwl3945_hw_valid_rtc_data_addr(base)) {
                 IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
-                return;
+                return pos;
         }
 
         /* event log header */
@@ -1642,7 +1670,7 @@ void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
         /* bail out if nothing in log */
         if (size == 0) {
                 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
-                return;
+                return pos;
         }
 
 #ifdef CONFIG_IWLWIFI_DEBUG
@@ -1658,25 +1686,38 @@ void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log)
                   size);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
+        if (display) {
+                if (full_log)
+                        bufsz = capacity * 48;
+                else
+                        bufsz = size * 48;
+                *buf = kmalloc(bufsz, GFP_KERNEL);
+                if (!*buf)
+                        return pos;
+        }
         if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) {
                 /* if uCode has wrapped back to top of log,
                  * start at the oldest entry,
                  * i.e the next one that uCode would fill.
                  */
                 if (num_wraps)
-                        iwl3945_print_event_log(priv, next_entry,
-                                    capacity - next_entry, mode);
+                        pos = iwl3945_print_event_log(priv, next_entry,
+                                                capacity - next_entry, mode,
+                                                pos, buf, bufsz);
 
                 /* (then/else) start at top of log */
-                iwl3945_print_event_log(priv, 0, next_entry, mode);
+                pos = iwl3945_print_event_log(priv, 0, next_entry, mode,
+                                              pos, buf, bufsz);
         } else
-                iwl3945_print_last_event_logs(priv, capacity, num_wraps,
-                                        next_entry, size, mode);
+                pos = iwl3945_print_last_event_logs(priv, capacity, num_wraps,
+                                                    next_entry, size, mode,
+                                                    pos, buf, bufsz);
 #else
-        iwl3945_print_last_event_logs(priv, capacity, num_wraps,
-                                next_entry, size, mode);
+        pos = iwl3945_print_last_event_logs(priv, capacity, num_wraps,
+                                            next_entry, size, mode,
+                                            pos, buf, bufsz);
 #endif
-
+        return pos;
 }
 
 static void iwl3945_irq_tasklet(struct iwl_priv *priv)