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Commit 03f68a95 authored by Vasanthakumar Thiagarajan's avatar Vasanthakumar Thiagarajan Committed by Kalle Valo
Browse files

ath6kl: Add debugfs entry to dump target stats 



It would be at <debugfs_root>/ieee80211/phyX/ath6kl/tgt_stats.

Signed-off-by: default avatarVasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
parent d999ba3e

drivers/net/wireless/ath/ath6kl/debug.c

+146 −1
Original line number Diff line number Diff line
@@ -147,6 +147,149 @@ void dump_cred_dist_stats(struct htc_target *target) 
		   target->cred_dist_cntxt->cur_free_credits);

}



static int ath6kl_debugfs_open(struct inode *inode, struct file *file)

{

	file->private_data = inode->i_private;

	return 0;

}



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

				   size_t count, loff_t *ppos)

{

	struct ath6kl *ar = file->private_data;

	struct target_stats *tgt_stats = &ar->target_stats;

	char *buf;

	unsigned int len = 0, buf_len = 1500;

	int i;

	long left;

	ssize_t ret_cnt;



	buf = kzalloc(buf_len, GFP_KERNEL);

	if (!buf)

		return -ENOMEM;



	if (down_interruptible(&ar->sem)) {

		kfree(buf);

		return -EBUSY;

	}



	set_bit(STATS_UPDATE_PEND, &ar->flag);



	if (ath6kl_wmi_get_stats_cmd(ar->wmi)) {

		up(&ar->sem);

		kfree(buf);

		return -EIO;

	}



	left = wait_event_interruptible_timeout(ar->event_wq,

						!test_bit(STATS_UPDATE_PEND,

						&ar->flag), WMI_TIMEOUT);



	up(&ar->sem);



	if (left <= 0) {

		kfree(buf);

		return -ETIMEDOUT;

	}



	len += scnprintf(buf + len, buf_len - len, "\n");

	len += scnprintf(buf + len, buf_len - len, "%25s\n",

			 "Target Tx stats");

	len += scnprintf(buf + len, buf_len - len, "%25s\n\n",

			 "=================");

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Ucast packets", tgt_stats->tx_ucast_pkt);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Bcast packets", tgt_stats->tx_bcast_pkt);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Ucast byte", tgt_stats->tx_ucast_byte);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Bcast byte", tgt_stats->tx_bcast_byte);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Rts success cnt", tgt_stats->tx_rts_success_cnt);

	for (i = 0; i < 4; i++)

		len += scnprintf(buf + len, buf_len - len,

				 "%18s %d %10llu\n", "PER on ac",

				 i, tgt_stats->tx_pkt_per_ac[i]);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Error", tgt_stats->tx_err);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Fail count", tgt_stats->tx_fail_cnt);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Retry count", tgt_stats->tx_retry_cnt);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt);

	len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n",

			 "TKIP counter measure used",

			 tgt_stats->tkip_cnter_measures_invoked);



	len += scnprintf(buf + len, buf_len - len, "%25s\n",

			 "Target Rx stats");

	len += scnprintf(buf + len, buf_len - len, "%25s\n",

			 "=================");



	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Ucast packets", tgt_stats->rx_ucast_pkt);

	len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",

			 "Ucast Rate", tgt_stats->rx_ucast_rate);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Bcast packets", tgt_stats->rx_bcast_pkt);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Ucast byte", tgt_stats->rx_ucast_byte);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Bcast byte", tgt_stats->rx_bcast_byte);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Fragmented pkt", tgt_stats->rx_frgment_pkt);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Error", tgt_stats->rx_err);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "CRC Err", tgt_stats->rx_crc_err);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Key chache miss", tgt_stats->rx_key_cache_miss);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Decrypt Err", tgt_stats->rx_decrypt_err);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Duplicate frame", tgt_stats->rx_dupl_frame);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "TKIP format err", tgt_stats->tkip_fmt_err);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "CCMP format Err", tgt_stats->ccmp_fmt_err);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n",

			 "CCMP Replay Err", tgt_stats->ccmp_replays);



	len += scnprintf(buf + len, buf_len - len, "%25s\n",

			 "Misc Target stats");

	len += scnprintf(buf + len, buf_len - len, "%25s\n",

			 "=================");

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Beacon Miss count", tgt_stats->cs_bmiss_cnt);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Num Connects", tgt_stats->cs_connect_cnt);

	len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",

			 "Num disconnects", tgt_stats->cs_discon_cnt);

	len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",

			 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi);



	if (len > buf_len)

		len = buf_len;



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



	kfree(buf);

	return ret_cnt;

}



static const struct file_operations fops_tgt_stats = {

	.read = read_file_tgt_stats,

	.open = ath6kl_debugfs_open,

	.owner = THIS_MODULE,

	.llseek = default_llseek,

};



int ath6kl_debug_init(struct ath6kl *ar)

{

	ar->debugfs_phy = debugfs_create_dir("ath6kl",
@@ -154,7 +297,9 @@ int ath6kl_debug_init(struct ath6kl *ar) 
	if (!ar->debugfs_phy)

		return -ENOMEM;



	/* TODO: Create debugfs file entries for various target/host stats */

	debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar,

			    &fops_tgt_stats);



	return 0;

}

#endif