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ath10k: enable debugfs provision to enable Peer Stats feature

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Provide a debugfs entry to enable/ disable Peer Stats feature.
Peer Stats feature is for developers/users who are more interested
in studying in Rx/Tx stats with multiple clients connected, hence
disable this by default. Enabling this feature by default results
in unneccessary processing of Peer Stats event for every 500ms
and updating peer_stats list (allocating memory) and cleaning it up
ifexceeds the higher limit and this can be an unnecessary overhead
during long run stress testing.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Mohammed Shafi Shajakhan
2016-03-16 18:13:32 +05:30
committed by Kalle Valo
parent 3d9195ea19
commit cc61a1bbbc
5 changed files with 94 additions and 14 deletions
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80
drivers/net/wireless/ath/ath10k/debug.c
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@@ -323,7 +323,7 @@ static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
{
struct ath10k_fw_stats stats = {};
bool is_start, is_started, is_end, peer_stats_svc;
bool is_start, is_started, is_end;
size_t num_peers;
size_t num_vdevs;
int ret;
@@ -350,13 +350,11 @@ void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
* b) consume stat update events until another one with pdev stats is
* delivered which is treated as end-of-data and is itself discarded
*/
peer_stats_svc = test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map);
if (peer_stats_svc)
if (ath10k_peer_stats_enabled(ar))
ath10k_sta_update_rx_duration(ar, &stats.peers);
if (ar->debug.fw_stats_done) {
if (!peer_stats_svc)
if (!ath10k_peer_stats_enabled(ar))
ath10k_warn(ar, "received unsolicited stats update event\n");
goto free;
@@ -2184,6 +2182,73 @@ static const struct file_operations fops_btcoex = {
.open = simple_open
};
static ssize_t ath10k_write_peer_stats(struct file *file,
const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
char buf[32];
size_t buf_size;
int ret = 0;
bool val;
buf_size = min(count, (sizeof(buf) - 1));
if (copy_from_user(buf, ubuf, buf_size))
return -EFAULT;
buf[buf_size] = '\0';
if (strtobool(buf, &val) != 0)
return -EINVAL;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON &&
ar->state != ATH10K_STATE_RESTARTED) {
ret = -ENETDOWN;
goto exit;
}
if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val))
goto exit;
if (val)
set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
else
clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
ath10k_info(ar, "restarting firmware due to Peer stats change");
queue_work(ar->workqueue, &ar->restart_work);
ret = count;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static ssize_t ath10k_read_peer_stats(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",
test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags));
mutex_unlock(&ar->conf_mutex);
return simple_read_from_buffer(ubuf, count, ppos, buf, len);
}
static const struct file_operations fops_peer_stats = {
.read = ath10k_read_peer_stats,
.write = ath10k_write_peer_stats,
.open = simple_open
};
static ssize_t ath10k_debug_fw_checksums_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
@@ -2347,6 +2412,11 @@ int ath10k_debug_register(struct ath10k *ar)
debugfs_create_file("btcoex", S_IRUGO | S_IWUSR,
ar->debug.debugfs_phy, ar, &fops_btcoex);
if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map))
debugfs_create_file("peer_stats", S_IRUGO | S_IWUSR,
ar->debug.debugfs_phy, ar,
&fops_peer_stats);
debugfs_create_file("fw_checksums", S_IRUSR,
ar->debug.debugfs_phy, ar, &fops_fw_checksums);