Commit f8b815dc authored by Sujith Manoharan's avatar Sujith Manoharan Committed by John W. Linville
Browse files

ath9k: Add a debugfs file to display reset statistics 



Location: <debugfs_path>/ieee80211/phy#/ath9k/reset

Signed-off-by: default avatarSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 6bcf6f64

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

+41 −0
Original line number Diff line number Diff line
@@ -750,6 +750,38 @@ static ssize_t read_file_misc(struct file *file, char __user *user_buf, 
	return retval;

}



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

			       size_t count, loff_t *ppos)

{

	struct ath_softc *sc = file->private_data;

	char buf[512];

	unsigned int len = 0;



	len += snprintf(buf + len, sizeof(buf) - len,

			"%17s: %2d\n", "Baseband Hang",

			sc->debug.stats.reset[RESET_TYPE_BB_HANG]);

	len += snprintf(buf + len, sizeof(buf) - len,

			"%17s: %2d\n", "Baseband Watchdog",

			sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);

	len += snprintf(buf + len, sizeof(buf) - len,

			"%17s: %2d\n", "Fatal HW Error",

			sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);

	len += snprintf(buf + len, sizeof(buf) - len,

			"%17s: %2d\n", "TX HW error",

			sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);

	len += snprintf(buf + len, sizeof(buf) - len,

			"%17s: %2d\n", "TX Path Hang",

			sc->debug.stats.reset[RESET_TYPE_TX_HANG]);

	len += snprintf(buf + len, sizeof(buf) - len,

			"%17s: %2d\n", "PLL RX Hang",

			sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);



	if (len > sizeof(buf))

		len = sizeof(buf);



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

}



void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,

		       struct ath_tx_status *ts, struct ath_txq *txq,

		       unsigned int flags)
@@ -837,6 +869,13 @@ static const struct file_operations fops_misc = { 
	.llseek = default_llseek,

};



static const struct file_operations fops_reset = {

	.read = read_file_reset,

	.open = ath9k_debugfs_open,

	.owner = THIS_MODULE,

	.llseek = default_llseek,

};



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

			      size_t count, loff_t *ppos)

{
@@ -1549,6 +1588,8 @@ int ath9k_init_debug(struct ath_hw *ah) 
			    &fops_stations);

	debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc,

			    &fops_misc);

	debugfs_create_file("reset", S_IRUSR, sc->debug.debugfs_phy, sc,

			    &fops_reset);

	debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc,

			    &fops_recv);

	debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,