ath10k: add debugfs entry to configure quiet period
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>
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 301081d..812365c 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -1991,6 +1991,49 @@
.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 @@
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;
}