Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7bdc473c authored by Wey-Yi Guy's avatar Wey-Yi Guy Committed by John W. Linville
Browse files

iwlwifi: add debugfs to control stuck queue timer 



In current implementation, stuck queue timer is fixed to 1 second. Add
debugfs file to modify the timer to enhance the flexibility:

Set the monitor_period as following:
   0: disable stuck queue force reset function
   1 - 60000: monitor period (1 - 60 second)

Signed-off-by: default avatarWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent c6c996b5

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

+8 −6
Original line number Diff line number Diff line
@@ -2697,12 +2697,14 @@ void iwl_bg_monitor_recover(unsigned long data) 
				return;

		}

	}

	if (priv->cfg->monitor_recover_period) {

		/*

		 * Reschedule the timer to occur in

		 * priv->cfg->monitor_recover_period

		 */

	mod_timer(&priv->monitor_recover,

		jiffies + msecs_to_jiffies(priv->cfg->monitor_recover_period));

		mod_timer(&priv->monitor_recover, jiffies + msecs_to_jiffies(

			  priv->cfg->monitor_recover_period));

	}

}

EXPORT_SYMBOL(iwl_bg_monitor_recover);

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

+30 −0
Original line number Diff line number Diff line
@@ -1527,6 +1527,34 @@ static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file, 
			user_buf, count, ppos);

}



static ssize_t iwl_dbgfs_monitor_period_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 period;



	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", &period) != 1)

		return -EINVAL;

	if (period < 0 || period > IWL_MAX_MONITORING_PERIOD)

		priv->cfg->monitor_recover_period = IWL_DEF_MONITORING_PERIOD;

	else

		priv->cfg->monitor_recover_period = period;



	if (priv->cfg->monitor_recover_period)

		mod_timer(&priv->monitor_recover, jiffies + msecs_to_jiffies(

			  priv->cfg->monitor_recover_period));

	else

		del_timer_sync(&priv->monitor_recover);

	return count;

}



DEBUGFS_READ_FILE_OPS(rx_statistics);

DEBUGFS_READ_FILE_OPS(tx_statistics);

DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -1550,6 +1578,7 @@ DEBUGFS_READ_FILE_OPS(rxon_flags); 
DEBUGFS_READ_FILE_OPS(rxon_filter_flags);

DEBUGFS_WRITE_FILE_OPS(txfifo_flush);

DEBUGFS_READ_FILE_OPS(ucode_bt_stats);

DEBUGFS_WRITE_FILE_OPS(monitor_period);



/*

 * Create the debugfs files and directories
@@ -1621,6 +1650,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) 
		DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);

	DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);

	DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);

	DEBUGFS_ADD_FILE(monitor_period, dir_debug, S_IWUSR);

	if (priv->cfg->sensitivity_calib_by_driver)

		DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,

				 &priv->disable_sens_cal);

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

+1 −0
Original line number Diff line number Diff line
@@ -1064,6 +1064,7 @@ struct iwl_event_log { 
#define IWL_DEF_MONITORING_PERIOD	(1000)

#define IWL_LONG_MONITORING_PERIOD	(5000)

#define IWL_ONE_HUNDRED_MSECS   (100)

#define IWL_MAX_MONITORING_PERIOD	(60000)



/* BT Antenna Coupling Threshold (dB) */

#define IWL_BT_ANTENNA_COUPLING_THRESHOLD	(35)