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Commit c4d04186 authored by Sujith Manoharan's avatar Sujith Manoharan Committed by John W. Linville
Browse files

ath9k_htc: Add a debugfs file showing endpoint status 



Location: ath9k_htc/phy#/queue

Signed-off-by: default avatarSujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 01f684de

drivers/net/wireless/ath/ath9k/htc.h

+1 −0
Original line number Diff line number Diff line
@@ -339,6 +339,7 @@ struct ath9k_debug { 
	struct dentry *debugfs_xmit;

	struct dentry *debugfs_recv;

	struct dentry *debugfs_slot;

	struct dentry *debugfs_queue;

	struct ath_tx_stats tx_stats;

	struct ath_rx_stats rx_stats;

	u32 txrate;

drivers/net/wireless/ath/ath9k/htc_drv_debug.c

+54 −0
Original line number Diff line number Diff line
@@ -279,6 +279,53 @@ static const struct file_operations fops_slot = { 
	.llseek = default_llseek,

};



static ssize_t read_file_queue(struct file *file, char __user *user_buf,

			       size_t count, loff_t *ppos)

{

	struct ath9k_htc_priv *priv = file->private_data;

	char buf[512];

	unsigned int len = 0;



	len += snprintf(buf + len, sizeof(buf) - len, "%16s : %3d\n",

			"Mgmt endpoint", skb_queue_len(&priv->tx.mgmt_ep_queue));



	len += snprintf(buf + len, sizeof(buf) - len, "%16s : %3d\n",

			"Cab endpoint", skb_queue_len(&priv->tx.cab_ep_queue));



	len += snprintf(buf + len, sizeof(buf) - len, "%16s : %3d\n",

			"Data BE endpoint", skb_queue_len(&priv->tx.data_be_queue));



	len += snprintf(buf + len, sizeof(buf) - len, "%16s : %3d\n",

			"Data BK endpoint", skb_queue_len(&priv->tx.data_bk_queue));



	len += snprintf(buf + len, sizeof(buf) - len, "%16s : %3d\n",

			"Data VI endpoint", skb_queue_len(&priv->tx.data_vi_queue));



	len += snprintf(buf + len, sizeof(buf) - len, "%16s : %3d\n",

			"Data VO endpoint", skb_queue_len(&priv->tx.data_vo_queue));



	len += snprintf(buf + len, sizeof(buf) - len, "%16s : %3d\n",

			"Failed queue", skb_queue_len(&priv->tx.tx_failed));



	spin_lock_bh(&priv->tx.tx_lock);

	len += snprintf(buf + len, sizeof(buf) - len, "%16s : %3d\n",

			"Queued count", priv->tx.queued_cnt);

	spin_unlock_bh(&priv->tx.tx_lock);



	if (len > sizeof(buf))

		len = sizeof(buf);



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



}



static const struct file_operations fops_queue = {

	.read = read_file_queue,

	.open = ath9k_debugfs_open,

	.owner = THIS_MODULE,

	.llseek = default_llseek,

};



int ath9k_htc_init_debug(struct ath_hw *ah)

{

	struct ath_common *common = ath9k_hw_common(ah);
@@ -317,6 +364,12 @@ int ath9k_htc_init_debug(struct ath_hw *ah) 
	if (!priv->debug.debugfs_slot)

		goto err;



	priv->debug.debugfs_queue = debugfs_create_file("queue", S_IRUSR,

							priv->debug.debugfs_phy,

							priv, &fops_queue);

	if (!priv->debug.debugfs_queue)

		goto err;



	return 0;



err:
@@ -329,6 +382,7 @@ void ath9k_htc_exit_debug(struct ath_hw *ah) 
	struct ath_common *common = ath9k_hw_common(ah);

	struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;



	debugfs_remove(priv->debug.debugfs_queue);

	debugfs_remove(priv->debug.debugfs_slot);

	debugfs_remove(priv->debug.debugfs_recv);

	debugfs_remove(priv->debug.debugfs_xmit);