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ath10k: add debugfs support to dump per sta tx stats 

This patch adds 'tx_stats' in per station debugfs entry.

Use this command to dump tx_stats:
cat /sys/kernel/debug/ieee80211/phy0/netdev\:wlan0/
    stations/<MACADDR>/tx_stats

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Anilkumar Kolli 2018-09-04 12:15:16 +05:30 committed by Kalle Valo
parent a904417fc8
commit 85dd28eb99
1 changed files with 101 additions and 0 deletions
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101
drivers/net/wireless/ath/ath10k/debugfs_sta.c
View File

@ -626,9 +626,105 @@ static const struct file_operations fops_tid_stats_dump = {
.llseek = default_llseek,
};
static ssize_t ath10k_dbg_sta_dump_tx_stats(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_sta *sta = file->private_data;
struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
struct ath10k *ar = arsta->arvif->ar;
struct ath10k_htt_data_stats *stats;
const char *str_name[ATH10K_STATS_TYPE_MAX] = {"succ", "fail",
"retry", "ampdu"};
const char *str[ATH10K_COUNTER_TYPE_MAX] = {"bytes", "packets"};
int len = 0, i, j, k, retval = 0;
const int size = 2 * 4096;
char *buf;
buf = kzalloc(size, GFP_KERNEL);
if (!buf)
return -ENOMEM;
mutex_lock(&ar->conf_mutex);
spin_lock_bh(&ar->data_lock);
for (k = 0; k < ATH10K_STATS_TYPE_MAX; k++) {
for (j = 0; j < ATH10K_COUNTER_TYPE_MAX; j++) {
stats = &arsta->tx_stats->stats[k];
len += scnprintf(buf + len, size - len, "%s_%s\n",
str_name[k],
str[j]);
len += scnprintf(buf + len, size - len,
" VHT MCS %s\n",
str[j]);
for (i = 0; i < ATH10K_VHT_MCS_NUM; i++)
len += scnprintf(buf + len, size - len,
" %llu ",
stats->vht[j][i]);
len += scnprintf(buf + len, size - len, "\n");
len += scnprintf(buf + len, size - len, " HT MCS %s\n",
str[j]);
for (i = 0; i < ATH10K_HT_MCS_NUM; i++)
len += scnprintf(buf + len, size - len,
" %llu ", stats->ht[j][i]);
len += scnprintf(buf + len, size - len, "\n");
len += scnprintf(buf + len, size - len,
" BW %s (20,40,80,160 MHz)\n", str[j]);
len += scnprintf(buf + len, size - len,
" %llu %llu %llu %llu\n",
stats->bw[j][0], stats->bw[j][1],
stats->bw[j][2], stats->bw[j][3]);
len += scnprintf(buf + len, size - len,
" NSS %s (1x1,2x2,3x3,4x4)\n", str[j]);
len += scnprintf(buf + len, size - len,
" %llu %llu %llu %llu\n",
stats->nss[j][0], stats->nss[j][1],
stats->nss[j][2], stats->nss[j][3]);
len += scnprintf(buf + len, size - len,
" GI %s (LGI,SGI)\n",
str[j]);
len += scnprintf(buf + len, size - len, " %llu %llu\n",
stats->gi[j][0], stats->gi[j][1]);
len += scnprintf(buf + len, size - len,
" legacy rate %s (1,2 ... Mbps)\n ",
str[j]);
for (i = 0; i < ATH10K_LEGACY_NUM; i++)
len += scnprintf(buf + len, size - len, "%llu ",
stats->legacy[j][i]);
len += scnprintf(buf + len, size - len, "\n");
}
}
len += scnprintf(buf + len, size - len,
"\nTX duration\n %llu usecs\n",
arsta->tx_stats->tx_duration);
len += scnprintf(buf + len, size - len,
"BA fails\n %llu\n", arsta->tx_stats->ba_fails);
len += scnprintf(buf + len, size - len,
"ack fails\n %llu\n", arsta->tx_stats->ack_fails);
spin_unlock_bh(&ar->data_lock);
if (len > size)
len = size;
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
mutex_unlock(&ar->conf_mutex);
return retval;
}
static const struct file_operations fops_tx_stats = {
.read = ath10k_dbg_sta_dump_tx_stats,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, struct dentry *dir)
{
struct ath10k *ar = hw->priv;
debugfs_create_file("aggr_mode", 0644, dir, sta, &fops_aggr_mode);
debugfs_create_file("addba", 0200, dir, sta, &fops_addba);
debugfs_create_file("addba_resp", 0200, dir, sta, &fops_addba_resp);
@ -637,4 +733,9 @@ void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
&fops_peer_debug_trigger);
debugfs_create_file("dump_tid_stats", 0400, dir, sta,
&fops_tid_stats_dump);
if (ath10k_peer_stats_enabled(ar) &&
ath10k_debug_is_extd_tx_stats_enabled(ar))
debugfs_create_file("tx_stats", 0400, dir, sta,
&fops_tx_stats);
}