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 <ako...@codeaurora.org>
---
drivers/net/wireless/ath/ath10k/debugfs_sta.c | 100 +++++++++++++++++++++++++
1 file changed, 100 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/debugfs_sta.c
b/drivers/net/wireless/ath/ath10k/debugfs_sta.c
index a63c97e2c50c..800eddd26af8 100644
--- a/drivers/net/wireless/ath/ath10k/debugfs_sta.c
+++ b/drivers/net/wireless/ath/ath10k/debugfs_sta.c
@@ -626,9 +626,105 @@ static ssize_t ath10k_dbg_sta_read_tid_stats(struct file
*file,
.llseek = default_llseek,
};
+static inline int ath10k_dump_htt_tx_stats(char *buf, int len, int size,
+ struct ath10k_htt_data_stats stats,
+ int type, const char *name)
+{
+ static const char *str[ATH10K_COUNTER_TYPE_MAX] = {
+ "bytes", "packets"};
+ int i;
+
+ len += scnprintf(buf + len, size - len, "%s_%s\n", name,
+ str[type]);
+ len += scnprintf(buf + len, size - len, " VHT MCS %s\n",
+ str[type]);
+ for (i = 0; i < NUM_VHT_MCS; i++)
+ len += scnprintf(buf + len, size - len, " %llu ",
+ stats.vht[type][i]);
+ len += scnprintf(buf + len, size - len, "\n");
+ len += scnprintf(buf + len, size - len, " HT MCS %s\n",
+ str[type]);
+ for (i = 0; i < NUM_HT_MCS; i++)
+ len += scnprintf(buf + len, size - len, " %llu ",
+ stats.ht[type][i]);
+ len += scnprintf(buf + len, size - len, "\n");
+ len += scnprintf(buf + len, size - len,
+ " BW %s (20,40,80,160 MHz)\n", str[type]);
+ len += scnprintf(buf + len, size - len, " %llu %llu %llu %llu\n",
+ stats.bw[type][0], stats.bw[type][1],
+ stats.bw[type][2], stats.bw[type][3]);
+ len += scnprintf(buf + len, size - len,
+ " NSS %s (1x1,2x2,3x3,4x4)\n", str[type]);
+ len += scnprintf(buf + len, size - len, " %llu %llu %llu %llu\n",
+ stats.nss[type][0], stats.nss[type][1],
+ stats.nss[type][2], stats.nss[type][3]);
+ len += scnprintf(buf + len, size - len, " GI %s (LGI,SGI)\n",
+ str[type]);
+ len += scnprintf(buf + len, size - len, " %llu %llu\n",
+ stats.gi[type][0], stats.gi[type][1]);
+ len += scnprintf(buf + len, size - len,
+ " legacy rate %s (1,2 ... Mbps)\n ", str[type]);
+ for (i = 0; i < NUM_LEGACY; i++)
+ len += scnprintf(buf + len, size - len, "%llu ",
+ stats.legacy[type][i]);
+ len += scnprintf(buf + len, size - len, "\n");
+
+ return len;
+}
+
+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;
+ char *buf;
+ static const char *str_name[ATH10K_STATS_TYPE_MAX] = {
+ "succ", "fail", "retry", "ampdu"};
+ int len = 0, i, j, retval = 0, size = 2 * 1024;
+
+ buf = kzalloc(size, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ mutex_lock(&ar->conf_mutex);
+
+ for (i = 0; i < ATH10K_STATS_TYPE_MAX; i++)
+ for (j = 0; j < ATH10K_COUNTER_TYPE_MAX; j++)
+ len = ath10k_dump_htt_tx_stats(buf, len, size,
+
arsta->tx_stats->stats[i],
+ j, str_name[i]);
+
+ 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);
+
+ 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 +733,8 @@ 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) && ar->debug.enable_extd_tx_stats)
+ debugfs_create_file("tx_stats", 0400, dir, sta,
+ &fops_tx_stats);
}
--
1.7.9.5
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