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ath10k: add debugfs entry to configure quiet period

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Add support to configure quiet period (in milliseconds) via debugfs.
This is useful to experiment different quiet period values along with
different throttle ratio.

echo 100 > /sys/kernel/debug/ieee80211/phyX/ath10k/quiet_period

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Rajkumar Manoharan 2015-03-15 20:36:20 +05:30 committed by Kalle Valo
parent 4705e34ee5
commit 63fb32df97
3 changed files with 49 additions and 2 deletions
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46
drivers/net/wireless/ath/ath10k/debug.c
View File

@ -1991,6 +1991,49 @@ static const struct file_operations fops_pktlog_filter = {
.open = simple_open
};
static ssize_t ath10k_write_quiet_period(struct file *file,
const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
u32 period;
if (kstrtouint_from_user(ubuf, count, 0, &period))
return -EINVAL;
if (period < ATH10K_QUIET_PERIOD_MIN) {
ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n",
period);
return -EINVAL;
}
mutex_lock(&ar->conf_mutex);
ar->thermal.quiet_period = period;
mutex_unlock(&ar->conf_mutex);
return count;
}
static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
char buf[32];
struct ath10k *ar = file->private_data;
int len = 0;
mutex_lock(&ar->conf_mutex);
len = scnprintf(buf, sizeof(buf) - len, "%d\n",
ar->thermal.quiet_period);
mutex_unlock(&ar->conf_mutex);
return simple_read_from_buffer(ubuf, count, ppos, buf, len);
}
static const struct file_operations fops_quiet_period = {
.read = ath10k_read_quiet_period,
.write = ath10k_write_quiet_period,
.open = simple_open
};
int ath10k_debug_create(struct ath10k *ar)
{
ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
@ -2088,6 +2131,9 @@ int ath10k_debug_register(struct ath10k *ar)
debugfs_create_file("pktlog_filter", S_IRUGO | S_IWUSR,
ar->debug.debugfs_phy, ar, &fops_pktlog_filter);
debugfs_create_file("quiet_period", S_IRUGO | S_IWUSR,
ar->debug.debugfs_phy, ar, &fops_quiet_period);
return 0;
}

4
drivers/net/wireless/ath/ath10k/thermal.c
View File

@ -96,8 +96,7 @@ static int ath10k_thermal_set_cur_dutycycle(struct thermal_cooling_device *cdev,
ret = -ENETDOWN;
goto out;
}
period = max(ATH10K_QUIET_PERIOD_MIN,
(ATH10K_QUIET_PERIOD_DEFAULT / num_bss));
period = ar->thermal.quiet_period;
duration = (period * duty_cycle) / 100;
enabled = duration ? 1 : 0;
@ -207,6 +206,7 @@ int ath10k_thermal_register(struct ath10k *ar)
}
ar->thermal.cdev = cdev;
ar->thermal.quiet_period = ATH10K_QUIET_PERIOD_DEFAULT;
/* Do not register hwmon device when temperature reading is not
* supported by firmware

1
drivers/net/wireless/ath/ath10k/thermal.h
View File

@ -29,6 +29,7 @@ struct ath10k_thermal {
/* protected by conf_mutex */
u32 duty_cycle;
u32 quiet_period;
/* temperature value in Celcius degree
* protected by data_lock
*/