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Commit da2aedca authored by Rajkumar Manoharan's avatar Rajkumar Manoharan Committed by Kalle Valo
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ath10k: add support to send delba 



This per-station debugfs entry helps to send delba in manual mode
for debugging purpose. It accepts tid, initiator and reason code
as inputs.

To send delba,

echo 0 1 37 >/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/
	     stations/XX:XX:XX:XX:XX:XX/delba

Signed-off-by: default avatarRajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
parent 8e68d55f

drivers/net/wireless/ath/ath10k/debugfs_sta.c

+52 −0
Original line number Diff line number Diff line
@@ -181,6 +181,57 @@ static const struct file_operations fops_addba_resp = { 
	.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,

};



void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,

			    struct ieee80211_sta *sta, struct dentry *dir)

{
@@ -188,4 +239,5 @@ void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 
			    &fops_aggr_mode);

	debugfs_create_file("addba", S_IWUSR, dir, sta, &fops_addba);

	debugfs_create_file("addba_resp", S_IWUSR, dir, sta, &fops_addba_resp);

	debugfs_create_file("delba", S_IWUSR, dir, sta, &fops_delba);

}