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ath9k: add reset for airtime station debugfs 

Let user can reset station airtime status by debugfs, it will
reset all airtime deficit to ATH_AIRTIME_QUANTUM and reset rx/tx
airtime accumulate to 0.

Signed-off-by: Louie Lu <git@louie.lu>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Louie Lu 2018-09-06 11:53:26 +08:00 committed by Kalle Valo
parent 393b9b0f83
commit 3fa8d21865
1 changed files with 17 additions and 1 deletions
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18
drivers/net/wireless/ath/ath9k/debug_sta.c
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@ -286,9 +286,25 @@ static ssize_t read_airtime(struct file *file, char __user *user_buf,
return retval;
}
static ssize_t
write_airtime_reset_stub(struct file *file, const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct ath_node *an = file->private_data;
struct ath_airtime_stats *astats;
int i;
astats = &an->airtime_stats;
astats->rx_airtime = 0;
astats->tx_airtime = 0;
for (i = 0; i < 4; i++)
an->airtime_deficit[i] = ATH_AIRTIME_QUANTUM;
return count;
}
static const struct file_operations fops_airtime = {
.read = read_airtime,
.write = write_airtime_reset_stub,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
@ -304,5 +320,5 @@ void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
debugfs_create_file("node_aggr", 0444, dir, an, &fops_node_aggr);
debugfs_create_file("node_recv", 0444, dir, an, &fops_node_recv);
debugfs_create_file("airtime", 0444, dir, an, &fops_airtime);
debugfs_create_file("airtime", 0644, dir, an, &fops_airtime);
}