iwlwifi: adding parameter of fw_restart

This patch adds a module parameter of fw_restart which determine if
the uCode will be restarted or not in case of error.

Signed-off-by: Ester Kummer <ester.kummer@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-4965.c

@@ -50,6 +50,7 @@ static struct iwl_mod_params iwl4965_mod_params = {
 	.num_of_queues = IWL49_NUM_QUEUES,
 	.enable_qos = 1,
 	.amsdu_size_8K = 1,
+	.restart_fw = 1,
 	/* the rest are 0 by default */
 };
 
@@ -3892,4 +3893,5 @@ module_param_named(qos_enable, iwl4965_mod_params.enable_qos, int, 0444);
 MODULE_PARM_DESC(qos_enable, "enable all QoS functionality");
 module_param_named(amsdu_size_8K, iwl4965_mod_params.amsdu_size_8K, int, 0444);
 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
-
+module_param_named(fw_restart4965, iwl4965_mod_params.restart_fw, int, 0444);
+MODULE_PARM_DESC(fw_restart4965, "restart firmware in case of error");

drivers/net/wireless/iwlwifi/iwl-5000.c

@@ -510,6 +510,7 @@ static struct iwl_mod_params iwl50_mod_params = {
 	.num_of_queues = IWL50_NUM_QUEUES,
 	.enable_qos = 1,
 	.amsdu_size_8K = 1,
+	.restart_fw = 1,
 	/* the rest are 0 by default */
 };
 
@@ -555,5 +556,5 @@ module_param_named(qos_enable50, iwl50_mod_params.enable_qos, int, 0444);
 MODULE_PARM_DESC(qos_enable50, "enable all 50XX QoS functionality");
 module_param_named(amsdu_size_8K50, iwl50_mod_params.amsdu_size_8K, int, 0444);
 MODULE_PARM_DESC(amsdu_size_8K50, "enable 8K amsdu size in 50XX series");
-
-
+module_param_named(fw_restart50, iwl50_mod_params.restart_fw, int, 0444);
+MODULE_PARM_DESC(fw_restart50, "restart firmware in case of error");

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

@@ -149,6 +149,7 @@ struct iwl_mod_params {
 	int enable_qos;		/* def: 1 = use quality of service */
 	int amsdu_size_8K;	/* def: 1 = enable 8K amsdu size */
 	int antenna;  		/* def: 0 = both antennas (use diversity) */
+	int restart_fw;		/* def: 1 = restart firmware */
 };
 
 struct iwl_cfg {

drivers/net/wireless/iwlwifi/iwl4965-base.c

@@ -3569,7 +3569,8 @@ static void iwl4965_irq_handle_error(struct iwl_priv *priv)
 			       sizeof(priv->recovery_rxon));
 			priv->error_recovering = 1;
 		}
-		queue_work(priv->workqueue, &priv->restart);
+		if (priv->cfg->mod_params->restart_fw)
+			queue_work(priv->workqueue, &priv->restart);
 	}
 }
 
@@ -6847,6 +6848,7 @@ static int __init iwl4965_init(void)
 
 	return ret;
 
+
 #ifdef CONFIG_IWLWIFI_DEBUG
 	pci_unregister_driver(&iwl_driver);
 #endif