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ath9k_htc: Add a debugfs file showing endpoint status 

Location: ath9k_htc/phy#/queue

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2011-04-13 11:26:31 +05:30 committed by John W. Linville
parent 01f684de7c
commit c4d04186c7
2 changed files with 55 additions and 0 deletions
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1
drivers/net/wireless/ath/ath9k/htc.h
View File

@ -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;

54
drivers/net/wireless/ath/ath9k/htc_drv_debug.c
View File

@ -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);