drivers/net/wireless/ath/ath10k/debugfs_sta.c - arm/linux - Git at Google

 /*
  * Copyright (c) 2014 Qualcomm Atheros, Inc.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  * copyright notice and this permission notice appear in all copies.
  *
  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */

 #include "core.h"
 #include "wmi-ops.h"
 #include "debug.h"

 static void ath10k_sta_update_extd_stats_rx_duration(struct ath10k *ar,
 						     struct ath10k_fw_stats *stats)
 {
 	struct ath10k_fw_extd_stats_peer *peer;
 	struct ieee80211_sta *sta;
 	struct ath10k_sta *arsta;

 	rcu_read_lock();
 	list_for_each_entry(peer, &stats->peers_extd, list) {
 		sta = ieee80211_find_sta_by_ifaddr(ar->hw, peer->peer_macaddr,
 						   NULL);
 		if (!sta)
 			continue;
 		arsta = (struct ath10k_sta *)sta->drv_priv;
 		arsta->rx_duration += (u64)peer->rx_duration;
 	}
 	rcu_read_unlock();
 }

 static void ath10k_sta_update_stats_rx_duration(struct ath10k *ar,
 						struct ath10k_fw_stats *stats)
 {
 	struct ath10k_fw_stats_peer *peer;
 	struct ieee80211_sta *sta;
 	struct ath10k_sta *arsta;

 	rcu_read_lock();
 	list_for_each_entry(peer, &stats->peers, list) {
 		sta = ieee80211_find_sta_by_ifaddr(ar->hw, peer->peer_macaddr,
 						   NULL);
 		if (!sta)
 			continue;
 		arsta = (struct ath10k_sta *)sta->drv_priv;
 		arsta->rx_duration += (u64)peer->rx_duration;
 	}
 	rcu_read_unlock();
 }

 void ath10k_sta_update_rx_duration(struct ath10k *ar,
 				   struct ath10k_fw_stats *stats)
 {
 	if (stats->extended)
 		ath10k_sta_update_extd_stats_rx_duration(ar, stats);
 	else
 		ath10k_sta_update_stats_rx_duration(ar, stats);
 }

 void ath10k_sta_statistics(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			   struct ieee80211_sta *sta,
 			   struct station_info *sinfo)
 {
 	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
 	struct ath10k *ar = arsta->arvif->ar;

 	if (!ath10k_peer_stats_enabled(ar))
 		return;

 	sinfo->rx_duration = arsta->rx_duration;
 	sinfo->filled |= 1ULL << NL80211_STA_INFO_RX_DURATION;

 	if (!arsta->txrate.legacy && !arsta->txrate.nss)
 		return;

 	if (arsta->txrate.legacy) {
 		sinfo->txrate.legacy = arsta->txrate.legacy;
 	} else {
 		sinfo->txrate.mcs = arsta->txrate.mcs;
 		sinfo->txrate.nss = arsta->txrate.nss;
 		sinfo->txrate.bw = arsta->txrate.bw;
 	}
 	sinfo->txrate.flags = arsta->txrate.flags;
 	sinfo->filled |= 1ULL << NL80211_STA_INFO_TX_BITRATE;
 }

 static ssize_t ath10k_dbg_sta_read_aggr_mode(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[32];
 	int len = 0;

 	mutex_lock(&ar->conf_mutex);
 	len = scnprintf(buf, sizeof(buf) - len, "aggregation mode: %s\n",
 			(arsta->aggr_mode == ATH10K_DBG_AGGR_MODE_AUTO) ?
 			"auto" : "manual");
 	mutex_unlock(&ar->conf_mutex);

 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 }

 static ssize_t ath10k_dbg_sta_write_aggr_mode(struct file *file,
 					      const 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;
 	u32 aggr_mode;
 	int ret;

 	if (kstrtouint_from_user(user_buf, count, 0, &aggr_mode))
 		return -EINVAL;

 	if (aggr_mode >= ATH10K_DBG_AGGR_MODE_MAX)
 		return -EINVAL;

 	mutex_lock(&ar->conf_mutex);
 	if ((ar->state != ATH10K_STATE_ON) ||
 	    (aggr_mode == arsta->aggr_mode)) {
 		ret = count;
 		goto out;
 	}

 	ret = ath10k_wmi_addba_clear_resp(ar, arsta->arvif->vdev_id, sta->addr);
 	if (ret) {
 		ath10k_warn(ar, "failed to clear addba session ret: %d\n", ret);
 		goto out;
 	}

 	arsta->aggr_mode = aggr_mode;
 out:
 	mutex_unlock(&ar->conf_mutex);
 	return ret;
 }

 static const struct file_operations fops_aggr_mode = {
 	.read = ath10k_dbg_sta_read_aggr_mode,
 	.write = ath10k_dbg_sta_write_aggr_mode,
 	.open = simple_open,
 	.owner = THIS_MODULE,
 	.llseek = default_llseek,
 };

 static ssize_t ath10k_dbg_sta_write_addba(struct file *file,
 					  const 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;
 	u32 tid, buf_size;
 	int ret;
 	char buf[64];

 	simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);

 	/* make sure that buf is null terminated */
 	buf[sizeof(buf) - 1] = '\0';

 	ret = sscanf(buf, "%u %u", &tid, &buf_size);
 	if (ret != 2)
 		return -EINVAL;

 	/* Valid TID values are 0 through 15 */
 	if (tid > HTT_DATA_TX_EXT_TID_MGMT - 2)
 		return -EINVAL;

 	mutex_lock(&ar->conf_mutex);
 	if ((ar->state != ATH10K_STATE_ON) ||
 	    (arsta->aggr_mode != ATH10K_DBG_AGGR_MODE_MANUAL)) {
 		ret = count;
 		goto out;
 	}

 	ret = ath10k_wmi_addba_send(ar, arsta->arvif->vdev_id, sta->addr,
 				    tid, buf_size);
 	if (ret) {
 		ath10k_warn(ar, "failed to send addba request: vdev_id %u peer %pM tid %u buf_size %u\n",
 			    arsta->arvif->vdev_id, sta->addr, tid, buf_size);
 	}

 	ret = count;
 out:
 	mutex_unlock(&ar->conf_mutex);
 	return ret;
 }

 static const struct file_operations fops_addba = {
 	.write = ath10k_dbg_sta_write_addba,
 	.open = simple_open,
 	.owner = THIS_MODULE,
 	.llseek = default_llseek,
 };

 static ssize_t ath10k_dbg_sta_write_addba_resp(struct file *file,
 					       const 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;
 	u32 tid, status;
 	int ret;
 	char buf[64];

 	simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);

 	/* make sure that buf is null terminated */
 	buf[sizeof(buf) - 1] = '\0';

 	ret = sscanf(buf, "%u %u", &tid, &status);
 	if (ret != 2)
 		return -EINVAL;

 	/* Valid TID values are 0 through 15 */
 	if (tid > HTT_DATA_TX_EXT_TID_MGMT - 2)
 		return -EINVAL;

 	mutex_lock(&ar->conf_mutex);
 	if ((ar->state != ATH10K_STATE_ON) ||
 	    (arsta->aggr_mode != ATH10K_DBG_AGGR_MODE_MANUAL)) {
 		ret = count;
 		goto out;
 	}

 	ret = ath10k_wmi_addba_set_resp(ar, arsta->arvif->vdev_id, sta->addr,
 					tid, status);
 	if (ret) {
 		ath10k_warn(ar, "failed to send addba response: vdev_id %u peer %pM tid %u status%u\n",
 			    arsta->arvif->vdev_id, sta->addr, tid, status);
 	}
 	ret = count;
 out:
 	mutex_unlock(&ar->conf_mutex);
 	return ret;
 }

 static const struct file_operations fops_addba_resp = {
 	.write = ath10k_dbg_sta_write_addba_resp,
 	.open = simple_open,
 	.owner = THIS_MODULE,
 	.llseek = default_llseek,
 };

 static ssize_t ath10k_dbg_sta_write_delba(struct file *file,
 					  const 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;
 	u32 tid, initiator, reason;
 	int ret;
 	char buf[64];

 	simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);

 	/* make sure that buf is null terminated */
 	buf[sizeof(buf) - 1] = '\0';

 	ret = sscanf(buf, "%u %u %u", &tid, &initiator, &reason);
 	if (ret != 3)
 		return -EINVAL;

 	/* Valid TID values are 0 through 15 */
 	if (tid > HTT_DATA_TX_EXT_TID_MGMT - 2)
 		return -EINVAL;

 	mutex_lock(&ar->conf_mutex);
 	if ((ar->state != ATH10K_STATE_ON) ||
 	    (arsta->aggr_mode != ATH10K_DBG_AGGR_MODE_MANUAL)) {
 		ret = count;
 		goto out;
 	}

 	ret = ath10k_wmi_delba_send(ar, arsta->arvif->vdev_id, sta->addr,
 				    tid, initiator, reason);
 	if (ret) {
 		ath10k_warn(ar, "failed to send delba: vdev_id %u peer %pM tid %u initiator %u reason %u\n",
 			    arsta->arvif->vdev_id, sta->addr, tid, initiator,
 			    reason);
 	}
 	ret = count;
 out:
 	mutex_unlock(&ar->conf_mutex);
 	return ret;
 }

 static const struct file_operations fops_delba = {
 	.write = ath10k_dbg_sta_write_delba,
 	.open = simple_open,
 	.owner = THIS_MODULE,
 	.llseek = default_llseek,
 };

 static ssize_t ath10k_dbg_sta_read_peer_debug_trigger(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[8];
 	int len = 0;

 	mutex_lock(&ar->conf_mutex);
 	len = scnprintf(buf, sizeof(buf) - len,
 			"Write 1 to once trigger the debug logs\n");
 	mutex_unlock(&ar->conf_mutex);

 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 }

 static ssize_t
 ath10k_dbg_sta_write_peer_debug_trigger(struct file *file,
 					const 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;
 	u8 peer_debug_trigger;
 	int ret;

 	if (kstrtou8_from_user(user_buf, count, 0, &peer_debug_trigger))
 		return -EINVAL;

 	if (peer_debug_trigger != 1)
 		return -EINVAL;

 	mutex_lock(&ar->conf_mutex);

 	if (ar->state != ATH10K_STATE_ON) {
 		ret = -ENETDOWN;
 		goto out;
 	}

 	ret = ath10k_wmi_peer_set_param(ar, arsta->arvif->vdev_id, sta->addr,
 					WMI_PEER_DEBUG, peer_debug_trigger);
 	if (ret) {
 		ath10k_warn(ar, "failed to set param to trigger peer tid logs for station ret: %d\n",
 			    ret);
 		goto out;
 	}
 out:
 	mutex_unlock(&ar->conf_mutex);
 	return count;
 }

 static const struct file_operations fops_peer_debug_trigger = {
 	.open = simple_open,
 	.read = ath10k_dbg_sta_read_peer_debug_trigger,
 	.write = ath10k_dbg_sta_write_peer_debug_trigger,
 	.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)
 {
 	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);
 	debugfs_create_file("delba", 0200, dir, sta, &fops_delba);
 	debugfs_create_file("peer_debug_trigger", 0600, dir, sta,
 			    &fops_peer_debug_trigger);
 }
	/*
	* Copyright (c) 2014 Qualcomm Atheros, Inc.
	*
	* Permission to use, copy, modify, and/or distribute this software for any
	* purpose with or without fee is hereby granted, provided that the above
	* copyright notice and this permission notice appear in all copies.
	*
	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	*/

	#include "core.h"
	#include "wmi-ops.h"
	#include "debug.h"

	static void ath10k_sta_update_extd_stats_rx_duration(struct ath10k *ar,
	struct ath10k_fw_stats *stats)
	{
	struct ath10k_fw_extd_stats_peer *peer;
	struct ieee80211_sta *sta;
	struct ath10k_sta *arsta;

	rcu_read_lock();
	list_for_each_entry(peer, &stats->peers_extd, list) {
	sta = ieee80211_find_sta_by_ifaddr(ar->hw, peer->peer_macaddr,
	NULL);
	if (!sta)
	continue;
	arsta = (struct ath10k_sta *)sta->drv_priv;
	arsta->rx_duration += (u64)peer->rx_duration;
	}
	rcu_read_unlock();
	}

	static void ath10k_sta_update_stats_rx_duration(struct ath10k *ar,
	struct ath10k_fw_stats *stats)
	{
	struct ath10k_fw_stats_peer *peer;
	struct ieee80211_sta *sta;
	struct ath10k_sta *arsta;

	rcu_read_lock();
	list_for_each_entry(peer, &stats->peers, list) {
	sta = ieee80211_find_sta_by_ifaddr(ar->hw, peer->peer_macaddr,
	NULL);
	if (!sta)
	continue;
	arsta = (struct ath10k_sta *)sta->drv_priv;
	arsta->rx_duration += (u64)peer->rx_duration;
	}
	rcu_read_unlock();
	}

	void ath10k_sta_update_rx_duration(struct ath10k *ar,
	struct ath10k_fw_stats *stats)
	{
	if (stats->extended)
	ath10k_sta_update_extd_stats_rx_duration(ar, stats);
	else
	ath10k_sta_update_stats_rx_duration(ar, stats);
	}

	void ath10k_sta_statistics(struct ieee80211_hw hw, struct ieee80211_vif vif,
	struct ieee80211_sta *sta,
	struct station_info *sinfo)
	{
	struct ath10k_sta arsta = (struct ath10k_sta )sta->drv_priv;
	struct ath10k *ar = arsta->arvif->ar;

	if (!ath10k_peer_stats_enabled(ar))
	return;

	sinfo->rx_duration = arsta->rx_duration;
	sinfo->filled \|= 1ULL << NL80211_STA_INFO_RX_DURATION;

	if (!arsta->txrate.legacy && !arsta->txrate.nss)
	return;

	if (arsta->txrate.legacy) {
	sinfo->txrate.legacy = arsta->txrate.legacy;
	} else {
	sinfo->txrate.mcs = arsta->txrate.mcs;
	sinfo->txrate.nss = arsta->txrate.nss;
	sinfo->txrate.bw = arsta->txrate.bw;
	}
	sinfo->txrate.flags = arsta->txrate.flags;
	sinfo->filled \|= 1ULL << NL80211_STA_INFO_TX_BITRATE;
	}

	static ssize_t ath10k_dbg_sta_read_aggr_mode(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[32];
	int len = 0;

	mutex_lock(&ar->conf_mutex);
	len = scnprintf(buf, sizeof(buf) - len, "aggregation mode: %s\n",
	(arsta->aggr_mode == ATH10K_DBG_AGGR_MODE_AUTO) ?
	"auto" : "manual");
	mutex_unlock(&ar->conf_mutex);

	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
	}

	static ssize_t ath10k_dbg_sta_write_aggr_mode(struct file *file,
	const 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;
	u32 aggr_mode;
	int ret;

	if (kstrtouint_from_user(user_buf, count, 0, &aggr_mode))
	return -EINVAL;

	if (aggr_mode >= ATH10K_DBG_AGGR_MODE_MAX)
	return -EINVAL;

	mutex_lock(&ar->conf_mutex);
	if ((ar->state != ATH10K_STATE_ON) \|\|
	(aggr_mode == arsta->aggr_mode)) {
	ret = count;
	goto out;
	}

	ret = ath10k_wmi_addba_clear_resp(ar, arsta->arvif->vdev_id, sta->addr);
	if (ret) {
	ath10k_warn(ar, "failed to clear addba session ret: %d\n", ret);
	goto out;
	}

	arsta->aggr_mode = aggr_mode;
	out:
	mutex_unlock(&ar->conf_mutex);
	return ret;
	}

	static const struct file_operations fops_aggr_mode = {
	.read = ath10k_dbg_sta_read_aggr_mode,
	.write = ath10k_dbg_sta_write_aggr_mode,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
	};

	static ssize_t ath10k_dbg_sta_write_addba(struct file *file,
	const 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;
	u32 tid, buf_size;
	int ret;
	char buf[64];

	simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);

	/* make sure that buf is null terminated */
	buf[sizeof(buf) - 1] = '\0';

	ret = sscanf(buf, "%u %u", &tid, &buf_size);
	if (ret != 2)
	return -EINVAL;

	/* Valid TID values are 0 through 15 */
	if (tid > HTT_DATA_TX_EXT_TID_MGMT - 2)
	return -EINVAL;

	mutex_lock(&ar->conf_mutex);
	if ((ar->state != ATH10K_STATE_ON) \|\|
	(arsta->aggr_mode != ATH10K_DBG_AGGR_MODE_MANUAL)) {
	ret = count;
	goto out;
	}

	ret = ath10k_wmi_addba_send(ar, arsta->arvif->vdev_id, sta->addr,
	tid, buf_size);
	if (ret) {
	ath10k_warn(ar, "failed to send addba request: vdev_id %u peer %pM tid %u buf_size %u\n",
	arsta->arvif->vdev_id, sta->addr, tid, buf_size);
	}

	ret = count;
	out:
	mutex_unlock(&ar->conf_mutex);
	return ret;
	}

	static const struct file_operations fops_addba = {
	.write = ath10k_dbg_sta_write_addba,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
	};

	static ssize_t ath10k_dbg_sta_write_addba_resp(struct file *file,
	const 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;
	u32 tid, status;
	int ret;
	char buf[64];

	simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);

	/* make sure that buf is null terminated */
	buf[sizeof(buf) - 1] = '\0';

	ret = sscanf(buf, "%u %u", &tid, &status);
	if (ret != 2)
	return -EINVAL;

	/* Valid TID values are 0 through 15 */
	if (tid > HTT_DATA_TX_EXT_TID_MGMT - 2)
	return -EINVAL;

	mutex_lock(&ar->conf_mutex);
	if ((ar->state != ATH10K_STATE_ON) \|\|
	(arsta->aggr_mode != ATH10K_DBG_AGGR_MODE_MANUAL)) {
	ret = count;
	goto out;
	}

	ret = ath10k_wmi_addba_set_resp(ar, arsta->arvif->vdev_id, sta->addr,
	tid, status);
	if (ret) {
	ath10k_warn(ar, "failed to send addba response: vdev_id %u peer %pM tid %u status%u\n",
	arsta->arvif->vdev_id, sta->addr, tid, status);
	}
	ret = count;
	out:
	mutex_unlock(&ar->conf_mutex);
	return ret;
	}

	static const struct file_operations fops_addba_resp = {
	.write = ath10k_dbg_sta_write_addba_resp,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
	};

	static ssize_t ath10k_dbg_sta_write_delba(struct file *file,
	const 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;
	u32 tid, initiator, reason;
	int ret;
	char buf[64];

	simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);

	/* make sure that buf is null terminated */
	buf[sizeof(buf) - 1] = '\0';

	ret = sscanf(buf, "%u %u %u", &tid, &initiator, &reason);
	if (ret != 3)
	return -EINVAL;

	/* Valid TID values are 0 through 15 */
	if (tid > HTT_DATA_TX_EXT_TID_MGMT - 2)
	return -EINVAL;

	mutex_lock(&ar->conf_mutex);
	if ((ar->state != ATH10K_STATE_ON) \|\|
	(arsta->aggr_mode != ATH10K_DBG_AGGR_MODE_MANUAL)) {
	ret = count;
	goto out;
	}

	ret = ath10k_wmi_delba_send(ar, arsta->arvif->vdev_id, sta->addr,
	tid, initiator, reason);
	if (ret) {
	ath10k_warn(ar, "failed to send delba: vdev_id %u peer %pM tid %u initiator %u reason %u\n",
	arsta->arvif->vdev_id, sta->addr, tid, initiator,
	reason);
	}
	ret = count;
	out:
	mutex_unlock(&ar->conf_mutex);
	return ret;
	}

	static const struct file_operations fops_delba = {
	.write = ath10k_dbg_sta_write_delba,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
	};

	static ssize_t ath10k_dbg_sta_read_peer_debug_trigger(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[8];
	int len = 0;

	mutex_lock(&ar->conf_mutex);
	len = scnprintf(buf, sizeof(buf) - len,
	"Write 1 to once trigger the debug logs\n");
	mutex_unlock(&ar->conf_mutex);

	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
	}

	static ssize_t
	ath10k_dbg_sta_write_peer_debug_trigger(struct file *file,
	const 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;
	u8 peer_debug_trigger;
	int ret;

	if (kstrtou8_from_user(user_buf, count, 0, &peer_debug_trigger))
	return -EINVAL;

	if (peer_debug_trigger != 1)
	return -EINVAL;

	mutex_lock(&ar->conf_mutex);

	if (ar->state != ATH10K_STATE_ON) {
	ret = -ENETDOWN;
	goto out;
	}

	ret = ath10k_wmi_peer_set_param(ar, arsta->arvif->vdev_id, sta->addr,
	WMI_PEER_DEBUG, peer_debug_trigger);
	if (ret) {
	ath10k_warn(ar, "failed to set param to trigger peer tid logs for station ret: %d\n",
	ret);
	goto out;
	}
	out:
	mutex_unlock(&ar->conf_mutex);
	return count;
	}

	static const struct file_operations fops_peer_debug_trigger = {
	.open = simple_open,
	.read = ath10k_dbg_sta_read_peer_debug_trigger,
	.write = ath10k_dbg_sta_write_peer_debug_trigger,
	.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)
	{
	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);
	debugfs_create_file("delba", 0200, dir, sta, &fops_delba);
	debugfs_create_file("peer_debug_trigger", 0600, dir, sta,
	&fops_peer_debug_trigger);
	}