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Commit 719c4cf6 authored by Sujith Manoharan's avatar Sujith Manoharan Committed by John W. Linville
Browse files

ath9k_htc: Add RX error statistics 



Signed-off-by: default avatarSujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 8e42e4ba

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

+16 −0
Original line number Diff line number Diff line
@@ -296,6 +296,9 @@ struct ath9k_htc_tx_ctl { 


#define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)



void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,

			   struct ath_htc_rx_status *rxs);



struct ath_tx_stats {

	u32 buf_queued;

	u32 buf_completed;
@@ -310,6 +313,14 @@ struct ath_rx_stats { 
	u32 skb_allocated;

	u32 skb_completed;

	u32 skb_dropped;

	u32 err_crc;

	u32 err_decrypt_crc;

	u32 err_mic;

	u32 err_pre_delim;

	u32 err_post_delim;

	u32 err_decrypt_busy;

	u32 err_phy;

	u32 err_phy_stats[ATH9K_PHYERR_MAX];

};



struct ath9k_debug {
@@ -330,6 +341,11 @@ struct ath9k_debug { 


#define TX_QSTAT_INC(c) do { } while (0)



static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,

					 struct ath_htc_rx_status *rxs)

{

}



#endif /* CONFIG_ATH9K_HTC_DEBUGFS */



#define ATH_LED_PIN_DEF             1

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

+100 −9
Original line number Diff line number Diff line
@@ -123,27 +123,118 @@ static const struct file_operations fops_xmit = { 
	.llseek = default_llseek,

};



void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,

			   struct ath_htc_rx_status *rxs)

{

#define RX_PHY_ERR_INC(c) priv->debug.rx_stats.err_phy_stats[c]++



	if (rxs->rs_status & ATH9K_RXERR_CRC)

		priv->debug.rx_stats.err_crc++;

	if (rxs->rs_status & ATH9K_RXERR_DECRYPT)

		priv->debug.rx_stats.err_decrypt_crc++;

	if (rxs->rs_status & ATH9K_RXERR_MIC)

		priv->debug.rx_stats.err_mic++;

	if (rxs->rs_status & ATH9K_RX_DELIM_CRC_PRE)

		priv->debug.rx_stats.err_pre_delim++;

	if (rxs->rs_status & ATH9K_RX_DELIM_CRC_POST)

		priv->debug.rx_stats.err_post_delim++;

	if (rxs->rs_status & ATH9K_RX_DECRYPT_BUSY)

		priv->debug.rx_stats.err_decrypt_busy++;



	if (rxs->rs_status & ATH9K_RXERR_PHY) {

		priv->debug.rx_stats.err_phy++;

		if (rxs->rs_phyerr < ATH9K_PHYERR_MAX)

			RX_PHY_ERR_INC(rxs->rs_phyerr);

	}



#undef RX_PHY_ERR_INC

}



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

			      size_t count, loff_t *ppos)

{

#define PHY_ERR(s, p)							\

	len += snprintf(buf + len, size - len, "%20s : %10u\n", s,	\

			priv->debug.rx_stats.err_phy_stats[p]);



	struct ath9k_htc_priv *priv = file->private_data;

	char buf[512];

	unsigned int len = 0;

	char *buf;

	unsigned int len = 0, size = 1500;

	ssize_t retval = 0;



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

	buf = kzalloc(size, GFP_KERNEL);

	if (buf == NULL)

		return -ENOMEM;



	len += snprintf(buf + len, size - len,

			"%20s : %10u\n", "SKBs allocated",

			priv->debug.rx_stats.skb_allocated);

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

	len += snprintf(buf + len, size - len,

			"%20s : %10u\n", "SKBs completed",

			priv->debug.rx_stats.skb_completed);

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

	len += snprintf(buf + len, size - len,

			"%20s : %10u\n", "SKBs Dropped",

			priv->debug.rx_stats.skb_dropped);



	if (len > sizeof(buf))

		len = sizeof(buf);



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

	len += snprintf(buf + len, size - len,

			"%20s : %10u\n", "CRC ERR",

			priv->debug.rx_stats.err_crc);

	len += snprintf(buf + len, size - len,

			"%20s : %10u\n", "DECRYPT CRC ERR",

			priv->debug.rx_stats.err_decrypt_crc);

	len += snprintf(buf + len, size - len,

			"%20s : %10u\n", "MIC ERR",

			priv->debug.rx_stats.err_mic);

	len += snprintf(buf + len, size - len,

			"%20s : %10u\n", "PRE-DELIM CRC ERR",

			priv->debug.rx_stats.err_pre_delim);

	len += snprintf(buf + len, size - len,

			"%20s : %10u\n", "POST-DELIM CRC ERR",

			priv->debug.rx_stats.err_post_delim);

	len += snprintf(buf + len, size - len,

			"%20s : %10u\n", "DECRYPT BUSY ERR",

			priv->debug.rx_stats.err_decrypt_busy);

	len += snprintf(buf + len, size - len,

			"%20s : %10u\n", "TOTAL PHY ERR",

			priv->debug.rx_stats.err_phy);





	PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);

	PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);

	PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);

	PHY_ERR("RATE", ATH9K_PHYERR_RATE);

	PHY_ERR("LENGTH", ATH9K_PHYERR_LENGTH);

	PHY_ERR("RADAR", ATH9K_PHYERR_RADAR);

	PHY_ERR("SERVICE", ATH9K_PHYERR_SERVICE);

	PHY_ERR("TOR", ATH9K_PHYERR_TOR);

	PHY_ERR("OFDM-TIMING", ATH9K_PHYERR_OFDM_TIMING);

	PHY_ERR("OFDM-SIGNAL-PARITY", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);

	PHY_ERR("OFDM-RATE", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);

	PHY_ERR("OFDM-LENGTH", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);

	PHY_ERR("OFDM-POWER-DROP", ATH9K_PHYERR_OFDM_POWER_DROP);

	PHY_ERR("OFDM-SERVICE", ATH9K_PHYERR_OFDM_SERVICE);

	PHY_ERR("OFDM-RESTART", ATH9K_PHYERR_OFDM_RESTART);

	PHY_ERR("FALSE-RADAR-EXT", ATH9K_PHYERR_FALSE_RADAR_EXT);

	PHY_ERR("CCK-TIMING", ATH9K_PHYERR_CCK_TIMING);

	PHY_ERR("CCK-HEADER-CRC", ATH9K_PHYERR_CCK_HEADER_CRC);

	PHY_ERR("CCK-RATE", ATH9K_PHYERR_CCK_RATE_ILLEGAL);

	PHY_ERR("CCK-SERVICE", ATH9K_PHYERR_CCK_SERVICE);

	PHY_ERR("CCK-RESTART", ATH9K_PHYERR_CCK_RESTART);

	PHY_ERR("CCK-LENGTH", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);

	PHY_ERR("CCK-POWER-DROP", ATH9K_PHYERR_CCK_POWER_DROP);

	PHY_ERR("HT-CRC", ATH9K_PHYERR_HT_CRC_ERROR);

	PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);

	PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);



	if (len > size)

		len = size;



	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);

	kfree(buf);



	return retval;



#undef PHY_ERR

}



static const struct file_operations fops_recv = {

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

+2 −0
Original line number Diff line number Diff line
@@ -540,6 +540,8 @@ static bool ath9k_rx_prepare(struct ath9k_htc_priv *priv, 
		goto rx_next;

	}



	ath9k_htc_err_stat_rx(priv, rxstatus);



	/* Get the RX status information */

	memcpy(&rxbuf->rxstatus, rxstatus, HTC_RX_FRAME_HEADER_SIZE);

	skb_pull(skb, HTC_RX_FRAME_HEADER_SIZE);