iwlwifi: Relax uCode timeout/error checking for 6000g2b

Disable plcp error checking for 6000g2b devices, with wifi/bt coex;
this got trigger too often, disable for now until finding better
trigger point.

Also extend the firmware reload timer much longer for BT coex to make sure
there are will be no mistake to reload firmware too fast and too often.
Signed-off-by: NWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-6000.c

@@ -796,7 +796,7 @@ struct iwl_cfg iwl6000g2b_2agn_cfg = {
 	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE,
 	.chain_noise_scale = 1000,
 	.monitor_recover_period = IWL_LONG_MONITORING_PERIOD,
 	.max_event_log_size = 512,
@@ -835,7 +835,7 @@ struct iwl_cfg iwl6000g2b_2abg_cfg = {
 	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE,
 	.chain_noise_scale = 1000,
 	.monitor_recover_period = IWL_LONG_MONITORING_PERIOD,
 	.max_event_log_size = 512,
@@ -876,7 +876,7 @@ struct iwl_cfg iwl6000g2b_2bgn_cfg = {
 	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE,
 	.chain_noise_scale = 1000,
 	.monitor_recover_period = IWL_LONG_MONITORING_PERIOD,
 	.max_event_log_size = 512,
@@ -915,7 +915,7 @@ struct iwl_cfg iwl6000g2b_2bg_cfg = {
 	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE,
 	.chain_noise_scale = 1000,
 	.monitor_recover_period = IWL_LONG_MONITORING_PERIOD,
 	.max_event_log_size = 512,
@@ -956,7 +956,7 @@ struct iwl_cfg iwl6000g2b_bgn_cfg = {
 	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE,
 	.chain_noise_scale = 1000,
 	.monitor_recover_period = IWL_LONG_MONITORING_PERIOD,
 	.max_event_log_size = 512,
@@ -995,7 +995,7 @@ struct iwl_cfg iwl6000g2b_bg_cfg = {
 	.supports_idle = true,
 	.adv_thermal_throttle = true,
 	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE,
 	.chain_noise_scale = 1000,
 	.monitor_recover_period = IWL_LONG_MONITORING_PERIOD,
 	.max_event_log_size = 512,

drivers/net/wireless/iwlwifi/iwl-core.c

@@ -2646,10 +2646,14 @@ static int iwl_check_stuck_queue(struct iwl_priv *priv, int cnt)
 						"queue %d, not read %d time\n",
 						q->id,
 						q->repeat_same_read_ptr);
-				mod_timer(&priv->monitor_recover, jiffies +
-					msecs_to_jiffies(IWL_ONE_HUNDRED_MSECS));
+				if (!priv->cfg->advanced_bt_coexist) {
+					mod_timer(&priv->monitor_recover,
+						jiffies + msecs_to_jiffies(
+						IWL_ONE_HUNDRED_MSECS));
+					return 1;
+				}
 			}
-			return 1;
+			return 0;
 		} else {
 			q->last_read_ptr = q->read_ptr;
 			q->repeat_same_read_ptr = 0;