iwlwifi: multiple force reset mode

Provide the function to perform different type of uCode reset/reload operation.
When uCode detect error and can not fix itself, this iwl_force_reset()
function allow driver to perform the necessary reset/reload functions and help
to bring uCode back to normal operation state.

Currently only 2 type of force reset are available:
 - reset radio
 - reload firmware

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 55dc5a86654..9f1d302e3a3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1035,6 +1035,11 @@ struct iwl_event_log {
 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF	(100)
 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX	(255)
 
+enum iwl_reset {
+	IWL_RF_RESET = 0,
+	IWL_FW_RESET,
+};
+
 struct iwl_priv {
 
 	/* ieee device used by generic ieee processing code */
@@ -1066,6 +1071,9 @@ struct iwl_priv {
 	/* storing the jiffies when the plcp error rate is received */
 	unsigned long plcp_jiffies;
 
+	/* force reset */
+	unsigned long last_force_reset_jiffies;
+
 	/* we allocate array of iwl4965_channel_info for NIC's valid channels.
 	 *    Access via channel # using indirect index array */
 	struct iwl_channel_info *channel_info;	/* channel info array */
@@ -1087,7 +1095,6 @@ struct iwl_priv {
 	unsigned long scan_start;
 	unsigned long scan_pass_start;
 	unsigned long scan_start_tsf;
-	unsigned long last_internal_scan_jiffies;
 	void *scan;
 	int scan_bands;
 	struct cfg80211_scan_request *scan_request;