evie/android_kernel_oneplus_msm8998
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iwlwifi: add debugfs to control stuck queue timer

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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: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Wey-Yi Guy 2010-08-23 07:57:07 -07:00 • committed by John W. Linville
parent c6c996b5de
commit 7bdc473c7a
3 changed files with 39 additions and 6 deletions
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14
drivers/net/wireless/iwlwifi/iwl-core.c
View file

@ -2697,12 +2697,14 @@ void iwl_bg_monitor_recover(unsigned long data)
return; return;
} }
} }
/* if (priv->cfg->monitor_recover_period) {
* Reschedule the timer to occur in /*
* 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); EXPORT_SYMBOL(iwl_bg_monitor_recover);

30
drivers/net/wireless/iwlwifi/iwl-debugfs.c
View file

@ -1527,6 +1527,34 @@ static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
user_buf, count, ppos); 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(rx_statistics);
DEBUGFS_READ_FILE_OPS(tx_statistics); DEBUGFS_READ_FILE_OPS(tx_statistics);
DEBUGFS_READ_WRITE_FILE_OPS(traffic_log); 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_READ_FILE_OPS(rxon_filter_flags);
DEBUGFS_WRITE_FILE_OPS(txfifo_flush); DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
DEBUGFS_READ_FILE_OPS(ucode_bt_stats); DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
DEBUGFS_WRITE_FILE_OPS(monitor_period);
/* /*
* Create the debugfs files and directories * 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(ucode_bt_stats, dir_debug, S_IRUSR);
DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR); DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
DEBUGFS_ADD_FILE(rxon_filter_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) if (priv->cfg->sensitivity_calib_by_driver)
DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf, DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
&priv->disable_sens_cal); &priv->disable_sens_cal);

1
drivers/net/wireless/iwlwifi/iwl-dev.h
View file

@ -1064,6 +1064,7 @@ struct iwl_event_log {
#define IWL_DEF_MONITORING_PERIOD (1000) #define IWL_DEF_MONITORING_PERIOD (1000)
#define IWL_LONG_MONITORING_PERIOD (5000) #define IWL_LONG_MONITORING_PERIOD (5000)
#define IWL_ONE_HUNDRED_MSECS (100) #define IWL_ONE_HUNDRED_MSECS (100)
#define IWL_MAX_MONITORING_PERIOD (60000)
/* BT Antenna Coupling Threshold (dB) */ /* BT Antenna Coupling Threshold (dB) */
#define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35) #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)