iwlwifi: add num_of_sos_stats to statistics counter

When uCode detects number of beacon missed consecutively above the
internal missed beacon threshold (set by uCode), it will reset and
re-tune the radio in order to get out of bad PHY state.

This "num_of_sos_states" counter monitors number of time uCode
encounters this bad condition and has to re-tune the radio.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 3320cce..8dc34a3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -3095,7 +3095,12 @@
 	__le32 ttl_timestamp;
 	struct statistics_div div;
 	__le32 rx_enable_counter;
-	__le32 reserved1;
+	/*
+	 * num_of_sos_states:
+	 *  count the number of times we have to re-tune
+	 *  in order to get out of bad PHY status
+	 */
+	__le32 num_of_sos_states;
 	__le32 reserved2;
 	__le32 reserved3;
 } __attribute__ ((packed));