debug.c 54.9 KB
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/*
 * Copyright (c) 2005-2011 Atheros Communications Inc.
 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <linux/module.h>
#include <linux/debugfs.h>
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#include <linux/vmalloc.h>
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#include <linux/utsname.h>
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#include "core.h"
#include "debug.h"
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#include "hif.h"
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#include "wmi-ops.h"
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/* ms */
#define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000

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#define ATH10K_FW_CRASH_DUMP_VERSION 1

/**
 * enum ath10k_fw_crash_dump_type - types of data in the dump file
 * @ATH10K_FW_CRASH_DUMP_REGDUMP: Register crash dump in binary format
 */
enum ath10k_fw_crash_dump_type {
	ATH10K_FW_CRASH_DUMP_REGISTERS = 0,

	ATH10K_FW_CRASH_DUMP_MAX,
};

struct ath10k_tlv_dump_data {
	/* see ath10k_fw_crash_dump_type above */
	__le32 type;

	/* in bytes */
	__le32 tlv_len;

	/* pad to 32-bit boundaries as needed */
	u8 tlv_data[];
} __packed;

struct ath10k_dump_file_data {
	/* dump file information */

	/* "ATH10K-FW-DUMP" */
	char df_magic[16];

	__le32 len;

	/* file dump version */
	__le32 version;

	/* some info we can get from ath10k struct that might help */

	u8 uuid[16];

	__le32 chip_id;

	/* 0 for now, in place for later hardware */
	__le32 bus_type;

	__le32 target_version;
	__le32 fw_version_major;
	__le32 fw_version_minor;
	__le32 fw_version_release;
	__le32 fw_version_build;
	__le32 phy_capability;
	__le32 hw_min_tx_power;
	__le32 hw_max_tx_power;
	__le32 ht_cap_info;
	__le32 vht_cap_info;
	__le32 num_rf_chains;

	/* firmware version string */
	char fw_ver[ETHTOOL_FWVERS_LEN];

	/* Kernel related information */

	/* time-of-day stamp */
	__le64 tv_sec;

	/* time-of-day stamp, nano-seconds */
	__le64 tv_nsec;

	/* LINUX_VERSION_CODE */
	__le32 kernel_ver_code;

	/* VERMAGIC_STRING */
	char kernel_ver[64];

	/* room for growth w/out changing binary format */
	u8 unused[128];

	/* struct ath10k_tlv_dump_data + more */
	u8 data[0];
} __packed;

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void ath10k_info(struct ath10k *ar, const char *fmt, ...)
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{
	struct va_format vaf = {
		.fmt = fmt,
	};
	va_list args;

	va_start(args, fmt);
	vaf.va = &args;
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	dev_info(ar->dev, "%pV", &vaf);
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	trace_ath10k_log_info(ar, &vaf);
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	va_end(args);
}
EXPORT_SYMBOL(ath10k_info);

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void ath10k_print_driver_info(struct ath10k *ar)
{
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	ath10k_info(ar, "%s (0x%08x, 0x%08x) fw %s api %d htt %d.%d wmi %d cal %s max_sta %d\n",
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		    ar->hw_params.name,
		    ar->target_version,
		    ar->chip_id,
		    ar->hw->wiphy->fw_version,
		    ar->fw_api,
		    ar->htt.target_version_major,
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		    ar->htt.target_version_minor,
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		    ar->wmi.op_version,
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		    ath10k_cal_mode_str(ar->cal_mode),
		    ar->max_num_stations);
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	ath10k_info(ar, "debug %d debugfs %d tracing %d dfs %d testmode %d\n",
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		    config_enabled(CONFIG_ATH10K_DEBUG),
		    config_enabled(CONFIG_ATH10K_DEBUGFS),
		    config_enabled(CONFIG_ATH10K_TRACING),
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		    config_enabled(CONFIG_ATH10K_DFS_CERTIFIED),
		    config_enabled(CONFIG_NL80211_TESTMODE));
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}
EXPORT_SYMBOL(ath10k_print_driver_info);

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void ath10k_err(struct ath10k *ar, const char *fmt, ...)
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{
	struct va_format vaf = {
		.fmt = fmt,
	};
	va_list args;

	va_start(args, fmt);
	vaf.va = &args;
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	dev_err(ar->dev, "%pV", &vaf);
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	trace_ath10k_log_err(ar, &vaf);
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	va_end(args);
}
EXPORT_SYMBOL(ath10k_err);

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void ath10k_warn(struct ath10k *ar, const char *fmt, ...)
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{
	struct va_format vaf = {
		.fmt = fmt,
	};
	va_list args;

	va_start(args, fmt);
	vaf.va = &args;
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	dev_warn_ratelimited(ar->dev, "%pV", &vaf);
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	trace_ath10k_log_warn(ar, &vaf);
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	va_end(args);
}
EXPORT_SYMBOL(ath10k_warn);

#ifdef CONFIG_ATH10K_DEBUGFS

static ssize_t ath10k_read_wmi_services(struct file *file,
					char __user *user_buf,
					size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	char *buf;
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	unsigned int len = 0, buf_len = 4096;
	const char *name;
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	ssize_t ret_cnt;
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	bool enabled;
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	int i;

	buf = kzalloc(buf_len, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	mutex_lock(&ar->conf_mutex);

	if (len > buf_len)
		len = buf_len;

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	spin_lock_bh(&ar->data_lock);
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	for (i = 0; i < WMI_SERVICE_MAX; i++) {
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		enabled = test_bit(i, ar->wmi.svc_map);
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		name = wmi_service_name(i);

		if (!name) {
			if (enabled)
				len += scnprintf(buf + len, buf_len - len,
						 "%-40s %s (bit %d)\n",
						 "unknown", "enabled", i);

			continue;
		}
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		len += scnprintf(buf + len, buf_len - len,
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				 "%-40s %s\n",
				 name, enabled ? "enabled" : "-");
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	}
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	spin_unlock_bh(&ar->data_lock);
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	ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);

	mutex_unlock(&ar->conf_mutex);

	kfree(buf);
	return ret_cnt;
}

static const struct file_operations fops_wmi_services = {
	.read = ath10k_read_wmi_services,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

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static void ath10k_debug_fw_stats_pdevs_free(struct list_head *head)
{
	struct ath10k_fw_stats_pdev *i, *tmp;

	list_for_each_entry_safe(i, tmp, head, list) {
		list_del(&i->list);
		kfree(i);
	}
}

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static void ath10k_debug_fw_stats_vdevs_free(struct list_head *head)
{
	struct ath10k_fw_stats_vdev *i, *tmp;

	list_for_each_entry_safe(i, tmp, head, list) {
		list_del(&i->list);
		kfree(i);
	}
}

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static void ath10k_debug_fw_stats_peers_free(struct list_head *head)
{
	struct ath10k_fw_stats_peer *i, *tmp;

	list_for_each_entry_safe(i, tmp, head, list) {
		list_del(&i->list);
		kfree(i);
	}
}

static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
{
	spin_lock_bh(&ar->data_lock);
	ar->debug.fw_stats_done = false;
	ath10k_debug_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs);
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	ath10k_debug_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
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	ath10k_debug_fw_stats_peers_free(&ar->debug.fw_stats.peers);
	spin_unlock_bh(&ar->data_lock);
}

static size_t ath10k_debug_fw_stats_num_peers(struct list_head *head)
{
	struct ath10k_fw_stats_peer *i;
	size_t num = 0;

	list_for_each_entry(i, head, list)
		++num;

	return num;
}

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static size_t ath10k_debug_fw_stats_num_vdevs(struct list_head *head)
{
	struct ath10k_fw_stats_vdev *i;
	size_t num = 0;

	list_for_each_entry(i, head, list)
		++num;

	return num;
}

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void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
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{
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	struct ath10k_fw_stats stats = {};
	bool is_start, is_started, is_end;
	size_t num_peers;
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	size_t num_vdevs;
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	int ret;
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	INIT_LIST_HEAD(&stats.pdevs);
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	INIT_LIST_HEAD(&stats.vdevs);
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	INIT_LIST_HEAD(&stats.peers);
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	spin_lock_bh(&ar->data_lock);
	ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats);
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	if (ret) {
		ath10k_warn(ar, "failed to pull fw stats: %d\n", ret);
		goto unlock;
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	}

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	/* Stat data may exceed htc-wmi buffer limit. In such case firmware
	 * splits the stats data and delivers it in a ping-pong fashion of
	 * request cmd-update event.
	 *
	 * However there is no explicit end-of-data. Instead start-of-data is
	 * used as an implicit one. This works as follows:
	 *  a) discard stat update events until one with pdev stats is
	 *     delivered - this skips session started at end of (b)
	 *  b) consume stat update events until another one with pdev stats is
	 *     delivered which is treated as end-of-data and is itself discarded
	 */

	if (ar->debug.fw_stats_done) {
		ath10k_warn(ar, "received unsolicited stats update event\n");
		goto free;
	}

	num_peers = ath10k_debug_fw_stats_num_peers(&ar->debug.fw_stats.peers);
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	num_vdevs = ath10k_debug_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs);
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	is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
		    !list_empty(&stats.pdevs));
	is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
		  !list_empty(&stats.pdevs));

	if (is_start)
		list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs);

	if (is_end)
		ar->debug.fw_stats_done = true;

	is_started = !list_empty(&ar->debug.fw_stats.pdevs);

	if (is_started && !is_end) {
		if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) {
			/* Although this is unlikely impose a sane limit to
			 * prevent firmware from DoS-ing the host.
			 */
			ath10k_warn(ar, "dropping fw peer stats\n");
			goto free;
		}

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		if (num_vdevs >= BITS_PER_LONG) {
			ath10k_warn(ar, "dropping fw vdev stats\n");
			goto free;
		}

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		list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers);
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		list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs);
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	}

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	complete(&ar->debug.fw_stats_complete);
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free:
	/* In some cases lists have been spliced and cleared. Free up
	 * resources if that is not the case.
	 */
	ath10k_debug_fw_stats_pdevs_free(&stats.pdevs);
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	ath10k_debug_fw_stats_vdevs_free(&stats.vdevs);
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	ath10k_debug_fw_stats_peers_free(&stats.peers);

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unlock:
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	spin_unlock_bh(&ar->data_lock);
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}

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static int ath10k_debug_fw_stats_request(struct ath10k *ar)
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{
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	unsigned long timeout;
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	int ret;

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	lockdep_assert_held(&ar->conf_mutex);
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	timeout = jiffies + msecs_to_jiffies(1*HZ);

	ath10k_debug_fw_stats_reset(ar);

	for (;;) {
		if (time_after(jiffies, timeout))
			return -ETIMEDOUT;

		reinit_completion(&ar->debug.fw_stats_complete);

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		ret = ath10k_wmi_request_stats(ar,
					       WMI_STAT_PDEV |
					       WMI_STAT_VDEV |
					       WMI_STAT_PEER);
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		if (ret) {
			ath10k_warn(ar, "could not request stats (%d)\n", ret);
			return ret;
		}
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		ret = wait_for_completion_timeout(&ar->debug.fw_stats_complete,
						  1*HZ);
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		if (ret == 0)
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			return -ETIMEDOUT;

		spin_lock_bh(&ar->data_lock);
		if (ar->debug.fw_stats_done) {
			spin_unlock_bh(&ar->data_lock);
			break;
		}
		spin_unlock_bh(&ar->data_lock);
	}
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	return 0;
}

/* FIXME: How to calculate the buffer size sanely? */
#define ATH10K_FW_STATS_BUF_SIZE (1024*1024)

static void ath10k_fw_stats_fill(struct ath10k *ar,
				 struct ath10k_fw_stats *fw_stats,
				 char *buf)
{
	unsigned int len = 0;
	unsigned int buf_len = ATH10K_FW_STATS_BUF_SIZE;
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	const struct ath10k_fw_stats_pdev *pdev;
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	const struct ath10k_fw_stats_vdev *vdev;
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	const struct ath10k_fw_stats_peer *peer;
	size_t num_peers;
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	size_t num_vdevs;
	int i;
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	spin_lock_bh(&ar->data_lock);
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	pdev = list_first_entry_or_null(&fw_stats->pdevs,
					struct ath10k_fw_stats_pdev, list);
	if (!pdev) {
		ath10k_warn(ar, "failed to get pdev stats\n");
		goto unlock;
	}

	num_peers = ath10k_debug_fw_stats_num_peers(&fw_stats->peers);
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	num_vdevs = ath10k_debug_fw_stats_num_vdevs(&fw_stats->vdevs);
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	len += scnprintf(buf + len, buf_len - len, "\n");
	len += scnprintf(buf + len, buf_len - len, "%30s\n",
			 "ath10k PDEV stats");
	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
				 "=================");

	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "Channel noise floor", pdev->ch_noise_floor);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
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			 "Channel TX power", pdev->chan_tx_power);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
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			 "TX frame count", pdev->tx_frame_count);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
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			 "RX frame count", pdev->rx_frame_count);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
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			 "RX clear count", pdev->rx_clear_count);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
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			 "Cycle count", pdev->cycle_count);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
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			 "PHY error count", pdev->phy_err_count);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
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			 "RTS bad count", pdev->rts_bad);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
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			 "RTS good count", pdev->rts_good);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
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			 "FCS bad count", pdev->fcs_bad);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
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			 "No beacon count", pdev->no_beacons);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
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			 "MIB int count", pdev->mib_int_count);
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	len += scnprintf(buf + len, buf_len - len, "\n");
	len += scnprintf(buf + len, buf_len - len, "%30s\n",
			 "ath10k PDEV TX stats");
	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
				 "=================");

	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "HTT cookies queued", pdev->comp_queued);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "HTT cookies disp.", pdev->comp_delivered);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "MSDU queued", pdev->msdu_enqued);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "MPDU queued", pdev->mpdu_enqued);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "MSDUs dropped", pdev->wmm_drop);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "Local enqued", pdev->local_enqued);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "Local freed", pdev->local_freed);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "HW queued", pdev->hw_queued);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "PPDUs reaped", pdev->hw_reaped);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "Num underruns", pdev->underrun);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "PPDUs cleaned", pdev->tx_abort);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "MPDUs requed", pdev->mpdus_requed);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "Excessive retries", pdev->tx_ko);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "HW rate", pdev->data_rc);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "Sched self tiggers", pdev->self_triggers);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Dropped due to SW retries",
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			 pdev->sw_retry_failure);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Illegal rate phy errors",
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			 pdev->illgl_rate_phy_err);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "Pdev continous xretry", pdev->pdev_cont_xretry);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "TX timeout", pdev->pdev_tx_timeout);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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			 "PDEV resets", pdev->pdev_resets);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
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Michal Kazior 已提交
531
			 "PHY underrun", pdev->phy_underrun);
532
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
533
			 "MPDU is more than txop limit", pdev->txop_ovf);
534 535 536 537 538 539 540 541 542

	len += scnprintf(buf + len, buf_len - len, "\n");
	len += scnprintf(buf + len, buf_len - len, "%30s\n",
			 "ath10k PDEV RX stats");
	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
				 "=================");

	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Mid PPDU route change",
M
Michal Kazior 已提交
543
			 pdev->mid_ppdu_route_change);
544
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
545
			 "Tot. number of statuses", pdev->status_rcvd);
546
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
547
			 "Extra frags on rings 0", pdev->r0_frags);
548
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
549
			 "Extra frags on rings 1", pdev->r1_frags);
550
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
551
			 "Extra frags on rings 2", pdev->r2_frags);
552
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
553
			 "Extra frags on rings 3", pdev->r3_frags);
554
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
555
			 "MSDUs delivered to HTT", pdev->htt_msdus);
556
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
557
			 "MPDUs delivered to HTT", pdev->htt_mpdus);
558
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
559
			 "MSDUs delivered to stack", pdev->loc_msdus);
560
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
561
			 "MPDUs delivered to stack", pdev->loc_mpdus);
562
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
563
			 "Oversized AMSUs", pdev->oversize_amsdu);
564
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
565
			 "PHY errors", pdev->phy_errs);
566
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
567
			 "PHY errors drops", pdev->phy_err_drop);
568
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
M
Michal Kazior 已提交
569
			 "MPDU errors (FCS, MIC, ENC)", pdev->mpdu_errs);
570

571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629
	len += scnprintf(buf + len, buf_len - len, "\n");
	len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n",
			 "ath10k VDEV stats", num_vdevs);
	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
				 "=================");

	list_for_each_entry(vdev, &fw_stats->vdevs, list) {
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "vdev id", vdev->vdev_id);
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "beacon snr", vdev->beacon_snr);
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "data snr", vdev->data_snr);
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "num rx frames", vdev->num_rx_frames);
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "num rts fail", vdev->num_rts_fail);
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "num rts success", vdev->num_rts_success);
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "num rx err", vdev->num_rx_err);
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "num rx discard", vdev->num_rx_discard);
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "num tx not acked", vdev->num_tx_not_acked);

		for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames); i++)
			len += scnprintf(buf + len, buf_len - len,
					"%25s [%02d] %u\n",
					 "num tx frames", i,
					 vdev->num_tx_frames[i]);

		for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_retries); i++)
			len += scnprintf(buf + len, buf_len - len,
					"%25s [%02d] %u\n",
					 "num tx frames retries", i,
					 vdev->num_tx_frames_retries[i]);

		for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_failures); i++)
			len += scnprintf(buf + len, buf_len - len,
					"%25s [%02d] %u\n",
					 "num tx frames failures", i,
					 vdev->num_tx_frames_failures[i]);

		for (i = 0 ; i < ARRAY_SIZE(vdev->tx_rate_history); i++)
			len += scnprintf(buf + len, buf_len - len,
					"%25s [%02d] 0x%08x\n",
					 "tx rate history", i,
					 vdev->tx_rate_history[i]);

		for (i = 0 ; i < ARRAY_SIZE(vdev->beacon_rssi_history); i++)
			len += scnprintf(buf + len, buf_len - len,
					"%25s [%02d] %u\n",
					 "beacon rssi history", i,
					 vdev->beacon_rssi_history[i]);

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

630
	len += scnprintf(buf + len, buf_len - len, "\n");
M
Michal Kazior 已提交
631 632
	len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n",
			 "ath10k PEER stats", num_peers);
633 634 635
	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
				 "=================");

M
Michal Kazior 已提交
636
	list_for_each_entry(peer, &fw_stats->peers, list) {
637
		len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
M
Michal Kazior 已提交
638
				 "Peer MAC address", peer->peer_macaddr);
639
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
M
Michal Kazior 已提交
640
				 "Peer RSSI", peer->peer_rssi);
641
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
M
Michal Kazior 已提交
642
				 "Peer TX rate", peer->peer_tx_rate);
B
Ben Greear 已提交
643
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
M
Michal Kazior 已提交
644
				 "Peer RX rate", peer->peer_rx_rate);
645 646
		len += scnprintf(buf + len, buf_len - len, "\n");
	}
M
Michal Kazior 已提交
647 648

unlock:
649
	spin_unlock_bh(&ar->data_lock);
650

651 652 653 654 655
	if (len >= buf_len)
		buf[len - 1] = 0;
	else
		buf[len] = 0;
}
656

657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675
static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
{
	struct ath10k *ar = inode->i_private;
	void *buf = NULL;
	int ret;

	mutex_lock(&ar->conf_mutex);

	if (ar->state != ATH10K_STATE_ON) {
		ret = -ENETDOWN;
		goto err_unlock;
	}

	buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE);
	if (!buf) {
		ret = -ENOMEM;
		goto err_unlock;
	}

M
Michal Kazior 已提交
676
	ret = ath10k_debug_fw_stats_request(ar);
677 678 679 680 681 682 683
	if (ret) {
		ath10k_warn(ar, "failed to request fw stats: %d\n", ret);
		goto err_free;
	}

	ath10k_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
	file->private_data = buf;
684 685

	mutex_unlock(&ar->conf_mutex);
686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709
	return 0;

err_free:
	vfree(buf);

err_unlock:
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
{
	vfree(file->private_data);

	return 0;
}

static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf,
				    size_t count, loff_t *ppos)
{
	const char *buf = file->private_data;
	unsigned int len = strlen(buf);

	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
710 711 712
}

static const struct file_operations fops_fw_stats = {
713 714
	.open = ath10k_fw_stats_open,
	.release = ath10k_fw_stats_release,
715
	.read = ath10k_fw_stats_read,
716 717 718 719
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

B
Ben Greear 已提交
720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760
static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file,
						char __user *user_buf,
						size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	int ret, len, buf_len;
	char *buf;

	buf_len = 500;
	buf = kmalloc(buf_len, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	spin_lock_bh(&ar->data_lock);

	len = 0;
	len += scnprintf(buf + len, buf_len - len,
			 "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter);
	len += scnprintf(buf + len, buf_len - len,
			 "fw_warm_reset_counter\t\t%d\n",
			 ar->stats.fw_warm_reset_counter);
	len += scnprintf(buf + len, buf_len - len,
			 "fw_cold_reset_counter\t\t%d\n",
			 ar->stats.fw_cold_reset_counter);

	spin_unlock_bh(&ar->data_lock);

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

	kfree(buf);

	return ret;
}

static const struct file_operations fops_fw_reset_stats = {
	.open = simple_open,
	.read = ath10k_debug_fw_reset_stats_read,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780
/* This is a clean assert crash in firmware. */
static int ath10k_debug_fw_assert(struct ath10k *ar)
{
	struct wmi_vdev_install_key_cmd *cmd;
	struct sk_buff *skb;

	skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
	if (!skb)
		return -ENOMEM;

	cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
	memset(cmd, 0, sizeof(*cmd));

	/* big enough number so that firmware asserts */
	cmd->vdev_id = __cpu_to_le32(0x7ffe);

	return ath10k_wmi_cmd_send(ar, skb,
				   ar->wmi.cmd->vdev_install_key_cmdid);
}

781 782 783 784
static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
					     char __user *user_buf,
					     size_t count, loff_t *ppos)
{
785 786 787 788
	const char buf[] =
		"To simulate firmware crash write one of the keywords to this file:\n"
		"`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
		"`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
789 790
		"`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n"
		"`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n";
791

792 793 794
	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
}

795 796 797 798 799 800 801
/* Simulate firmware crash:
 * 'soft': Call wmi command causing firmware hang. This firmware hang is
 * recoverable by warm firmware reset.
 * 'hard': Force firmware crash by setting any vdev parameter for not allowed
 * vdev id. This is hard firmware crash because it is recoverable only by cold
 * firmware reset.
 */
802 803 804 805 806
static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
					      const char __user *user_buf,
					      size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
807
	char buf[32];
808 809 810 811 812
	int ret;

	mutex_lock(&ar->conf_mutex);

	simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
813 814 815

	/* make sure that buf is null terminated */
	buf[sizeof(buf) - 1] = 0;
816 817 818 819 820 821 822

	if (ar->state != ATH10K_STATE_ON &&
	    ar->state != ATH10K_STATE_RESTARTED) {
		ret = -ENETDOWN;
		goto exit;
	}

823 824 825 826 827 828 829
	/* drop the possible '\n' from the end */
	if (buf[count - 1] == '\n') {
		buf[count - 1] = 0;
		count--;
	}

	if (!strcmp(buf, "soft")) {
830
		ath10k_info(ar, "simulating soft firmware crash\n");
831 832
		ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
	} else if (!strcmp(buf, "hard")) {
833
		ath10k_info(ar, "simulating hard firmware crash\n");
834 835 836 837
		/* 0x7fff is vdev id, and it is always out of range for all
		 * firmware variants in order to force a firmware crash.
		 */
		ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
838 839
						ar->wmi.vdev_param->rts_threshold,
						0);
840 841 842
	} else if (!strcmp(buf, "assert")) {
		ath10k_info(ar, "simulating firmware assert crash\n");
		ret = ath10k_debug_fw_assert(ar);
843 844 845 846
	} else if (!strcmp(buf, "hw-restart")) {
		ath10k_info(ar, "user requested hw restart\n");
		queue_work(ar->workqueue, &ar->restart_work);
		ret = 0;
847 848 849 850
	} else {
		ret = -EINVAL;
		goto exit;
	}
851

852
	if (ret) {
853
		ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
854 855
		goto exit;
	}
856

857
	ret = count;
858 859 860 861 862 863 864 865 866 867 868 869 870 871

exit:
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

static const struct file_operations fops_simulate_fw_crash = {
	.read = ath10k_read_simulate_fw_crash,
	.write = ath10k_write_simulate_fw_crash,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

K
Kalle Valo 已提交
872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890
static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
				   size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	unsigned int len;
	char buf[50];

	len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);

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

static const struct file_operations fops_chip_id = {
	.read = ath10k_read_chip_id,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959
struct ath10k_fw_crash_data *
ath10k_debug_get_new_fw_crash_data(struct ath10k *ar)
{
	struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;

	lockdep_assert_held(&ar->data_lock);

	crash_data->crashed_since_read = true;
	uuid_le_gen(&crash_data->uuid);
	getnstimeofday(&crash_data->timestamp);

	return crash_data;
}
EXPORT_SYMBOL(ath10k_debug_get_new_fw_crash_data);

static struct ath10k_dump_file_data *ath10k_build_dump_file(struct ath10k *ar)
{
	struct ath10k_fw_crash_data *crash_data = ar->debug.fw_crash_data;
	struct ath10k_dump_file_data *dump_data;
	struct ath10k_tlv_dump_data *dump_tlv;
	int hdr_len = sizeof(*dump_data);
	unsigned int len, sofar = 0;
	unsigned char *buf;

	len = hdr_len;
	len += sizeof(*dump_tlv) + sizeof(crash_data->registers);

	sofar += hdr_len;

	/* This is going to get big when we start dumping FW RAM and such,
	 * so go ahead and use vmalloc.
	 */
	buf = vzalloc(len);
	if (!buf)
		return NULL;

	spin_lock_bh(&ar->data_lock);

	if (!crash_data->crashed_since_read) {
		spin_unlock_bh(&ar->data_lock);
		vfree(buf);
		return NULL;
	}

	dump_data = (struct ath10k_dump_file_data *)(buf);
	strlcpy(dump_data->df_magic, "ATH10K-FW-DUMP",
		sizeof(dump_data->df_magic));
	dump_data->len = cpu_to_le32(len);

	dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION);

	memcpy(dump_data->uuid, &crash_data->uuid, sizeof(dump_data->uuid));
	dump_data->chip_id = cpu_to_le32(ar->chip_id);
	dump_data->bus_type = cpu_to_le32(0);
	dump_data->target_version = cpu_to_le32(ar->target_version);
	dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major);
	dump_data->fw_version_minor = cpu_to_le32(ar->fw_version_minor);
	dump_data->fw_version_release = cpu_to_le32(ar->fw_version_release);
	dump_data->fw_version_build = cpu_to_le32(ar->fw_version_build);
	dump_data->phy_capability = cpu_to_le32(ar->phy_capability);
	dump_data->hw_min_tx_power = cpu_to_le32(ar->hw_min_tx_power);
	dump_data->hw_max_tx_power = cpu_to_le32(ar->hw_max_tx_power);
	dump_data->ht_cap_info = cpu_to_le32(ar->ht_cap_info);
	dump_data->vht_cap_info = cpu_to_le32(ar->vht_cap_info);
	dump_data->num_rf_chains = cpu_to_le32(ar->num_rf_chains);

	strlcpy(dump_data->fw_ver, ar->hw->wiphy->fw_version,
		sizeof(dump_data->fw_ver));

J
Johannes Berg 已提交
960 961
	dump_data->kernel_ver_code = 0;
	strlcpy(dump_data->kernel_ver, init_utsname()->release,
962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022
		sizeof(dump_data->kernel_ver));

	dump_data->tv_sec = cpu_to_le64(crash_data->timestamp.tv_sec);
	dump_data->tv_nsec = cpu_to_le64(crash_data->timestamp.tv_nsec);

	/* Gather crash-dump */
	dump_tlv = (struct ath10k_tlv_dump_data *)(buf + sofar);
	dump_tlv->type = cpu_to_le32(ATH10K_FW_CRASH_DUMP_REGISTERS);
	dump_tlv->tlv_len = cpu_to_le32(sizeof(crash_data->registers));
	memcpy(dump_tlv->tlv_data, &crash_data->registers,
	       sizeof(crash_data->registers));
	sofar += sizeof(*dump_tlv) + sizeof(crash_data->registers);

	ar->debug.fw_crash_data->crashed_since_read = false;

	spin_unlock_bh(&ar->data_lock);

	return dump_data;
}

static int ath10k_fw_crash_dump_open(struct inode *inode, struct file *file)
{
	struct ath10k *ar = inode->i_private;
	struct ath10k_dump_file_data *dump;

	dump = ath10k_build_dump_file(ar);
	if (!dump)
		return -ENODATA;

	file->private_data = dump;

	return 0;
}

static ssize_t ath10k_fw_crash_dump_read(struct file *file,
					 char __user *user_buf,
					 size_t count, loff_t *ppos)
{
	struct ath10k_dump_file_data *dump_file = file->private_data;

	return simple_read_from_buffer(user_buf, count, ppos,
				       dump_file,
				       le32_to_cpu(dump_file->len));
}

static int ath10k_fw_crash_dump_release(struct inode *inode,
					struct file *file)
{
	vfree(file->private_data);

	return 0;
}

static const struct file_operations fops_fw_crash_dump = {
	.open = ath10k_fw_crash_dump_open,
	.read = ath10k_fw_crash_dump_read,
	.release = ath10k_fw_crash_dump_release,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141
static ssize_t ath10k_reg_addr_read(struct file *file,
				    char __user *user_buf,
				    size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	u8 buf[32];
	unsigned int len = 0;
	u32 reg_addr;

	mutex_lock(&ar->conf_mutex);
	reg_addr = ar->debug.reg_addr;
	mutex_unlock(&ar->conf_mutex);

	len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr);

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

static ssize_t ath10k_reg_addr_write(struct file *file,
				     const char __user *user_buf,
				     size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	u32 reg_addr;
	int ret;

	ret = kstrtou32_from_user(user_buf, count, 0, &reg_addr);
	if (ret)
		return ret;

	if (!IS_ALIGNED(reg_addr, 4))
		return -EFAULT;

	mutex_lock(&ar->conf_mutex);
	ar->debug.reg_addr = reg_addr;
	mutex_unlock(&ar->conf_mutex);

	return count;
}

static const struct file_operations fops_reg_addr = {
	.read = ath10k_reg_addr_read,
	.write = ath10k_reg_addr_write,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

static ssize_t ath10k_reg_value_read(struct file *file,
				     char __user *user_buf,
				     size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	u8 buf[48];
	unsigned int len;
	u32 reg_addr, reg_val;
	int ret;

	mutex_lock(&ar->conf_mutex);

	if (ar->state != ATH10K_STATE_ON &&
	    ar->state != ATH10K_STATE_UTF) {
		ret = -ENETDOWN;
		goto exit;
	}

	reg_addr = ar->debug.reg_addr;

	reg_val = ath10k_hif_read32(ar, reg_addr);
	len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val);

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

exit:
	mutex_unlock(&ar->conf_mutex);

	return ret;
}

static ssize_t ath10k_reg_value_write(struct file *file,
				      const char __user *user_buf,
				      size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	u32 reg_addr, reg_val;
	int ret;

	mutex_lock(&ar->conf_mutex);

	if (ar->state != ATH10K_STATE_ON &&
	    ar->state != ATH10K_STATE_UTF) {
		ret = -ENETDOWN;
		goto exit;
	}

	reg_addr = ar->debug.reg_addr;

	ret = kstrtou32_from_user(user_buf, count, 0, &reg_val);
	if (ret)
		goto exit;

	ath10k_hif_write32(ar, reg_addr, reg_val);

	ret = count;

exit:
	mutex_unlock(&ar->conf_mutex);

	return ret;
}

static const struct file_operations fops_reg_value = {
	.read = ath10k_reg_value_read,
	.write = ath10k_reg_value_write,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252
static ssize_t ath10k_mem_value_read(struct file *file,
				     char __user *user_buf,
				     size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	u8 *buf;
	int ret;

	if (*ppos < 0)
		return -EINVAL;

	if (!count)
		return 0;

	mutex_lock(&ar->conf_mutex);

	buf = vmalloc(count);
	if (!buf) {
		ret = -ENOMEM;
		goto exit;
	}

	if (ar->state != ATH10K_STATE_ON &&
	    ar->state != ATH10K_STATE_UTF) {
		ret = -ENETDOWN;
		goto exit;
	}

	ret = ath10k_hif_diag_read(ar, *ppos, buf, count);
	if (ret) {
		ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n",
			    (u32)(*ppos), ret);
		goto exit;
	}

	ret = copy_to_user(user_buf, buf, count);
	if (ret) {
		ret = -EFAULT;
		goto exit;
	}

	count -= ret;
	*ppos += count;
	ret = count;

exit:
	vfree(buf);
	mutex_unlock(&ar->conf_mutex);

	return ret;
}

static ssize_t ath10k_mem_value_write(struct file *file,
				      const char __user *user_buf,
				      size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	u8 *buf;
	int ret;

	if (*ppos < 0)
		return -EINVAL;

	if (!count)
		return 0;

	mutex_lock(&ar->conf_mutex);

	buf = vmalloc(count);
	if (!buf) {
		ret = -ENOMEM;
		goto exit;
	}

	if (ar->state != ATH10K_STATE_ON &&
	    ar->state != ATH10K_STATE_UTF) {
		ret = -ENETDOWN;
		goto exit;
	}

	ret = copy_from_user(buf, user_buf, count);
	if (ret) {
		ret = -EFAULT;
		goto exit;
	}

	ret = ath10k_hif_diag_write(ar, *ppos, buf, count);
	if (ret) {
		ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n",
			    (u32)(*ppos), ret);
		goto exit;
	}

	*ppos += count;
	ret = count;

exit:
	vfree(buf);
	mutex_unlock(&ar->conf_mutex);

	return ret;
}

static const struct file_operations fops_mem_value = {
	.read = ath10k_mem_value_read,
	.write = ath10k_mem_value_write,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271
static int ath10k_debug_htt_stats_req(struct ath10k *ar)
{
	u64 cookie;
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	if (ar->debug.htt_stats_mask == 0)
		/* htt stats are disabled */
		return 0;

	if (ar->state != ATH10K_STATE_ON)
		return 0;

	cookie = get_jiffies_64();

	ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
				       cookie);
	if (ret) {
1272
		ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294
		return ret;
	}

	queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
			   msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));

	return 0;
}

static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
{
	struct ath10k *ar = container_of(work, struct ath10k,
					 debug.htt_stats_dwork.work);

	mutex_lock(&ar->conf_mutex);

	ath10k_debug_htt_stats_req(ar);

	mutex_unlock(&ar->conf_mutex);
}

static ssize_t ath10k_read_htt_stats_mask(struct file *file,
1295 1296
					  char __user *user_buf,
					  size_t count, loff_t *ppos)
1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307
{
	struct ath10k *ar = file->private_data;
	char buf[32];
	unsigned int len;

	len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);

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

static ssize_t ath10k_write_htt_stats_mask(struct file *file,
1308 1309
					   const char __user *user_buf,
					   size_t count, loff_t *ppos)
1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346
{
	struct ath10k *ar = file->private_data;
	unsigned long mask;
	int ret;

	ret = kstrtoul_from_user(user_buf, count, 0, &mask);
	if (ret)
		return ret;

	/* max 8 bit masks (for now) */
	if (mask > 0xff)
		return -E2BIG;

	mutex_lock(&ar->conf_mutex);

	ar->debug.htt_stats_mask = mask;

	ret = ath10k_debug_htt_stats_req(ar);
	if (ret)
		goto out;

	ret = count;

out:
	mutex_unlock(&ar->conf_mutex);

	return ret;
}

static const struct file_operations fops_htt_stats_mask = {
	.read = ath10k_read_htt_stats_mask,
	.write = ath10k_write_htt_stats_mask,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412
static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
					       char __user *user_buf,
					       size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	char buf[64];
	u8 amsdu = 3, ampdu = 64;
	unsigned int len;

	mutex_lock(&ar->conf_mutex);

	if (ar->debug.htt_max_amsdu)
		amsdu = ar->debug.htt_max_amsdu;

	if (ar->debug.htt_max_ampdu)
		ampdu = ar->debug.htt_max_ampdu;

	mutex_unlock(&ar->conf_mutex);

	len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);

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

static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
						const char __user *user_buf,
						size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	int res;
	char buf[64];
	unsigned int amsdu, ampdu;

	simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);

	/* make sure that buf is null terminated */
	buf[sizeof(buf) - 1] = 0;

	res = sscanf(buf, "%u %u", &amsdu, &ampdu);

	if (res != 2)
		return -EINVAL;

	mutex_lock(&ar->conf_mutex);

	res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
	if (res)
		goto out;

	res = count;
	ar->debug.htt_max_amsdu = amsdu;
	ar->debug.htt_max_ampdu = ampdu;

out:
	mutex_unlock(&ar->conf_mutex);
	return res;
}

static const struct file_operations fops_htt_max_amsdu_ampdu = {
	.read = ath10k_read_htt_max_amsdu_ampdu,
	.write = ath10k_write_htt_max_amsdu_ampdu,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

1413
static ssize_t ath10k_read_fw_dbglog(struct file *file,
1414 1415
				     char __user *user_buf,
				     size_t count, loff_t *ppos)
1416 1417 1418
{
	struct ath10k *ar = file->private_data;
	unsigned int len;
1419
	char buf[64];
1420

1421 1422
	len = scnprintf(buf, sizeof(buf), "0x%08x %u\n",
			ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
1423 1424 1425 1426 1427 1428 1429 1430 1431 1432

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

static ssize_t ath10k_write_fw_dbglog(struct file *file,
				      const char __user *user_buf,
				      size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	int ret;
1433 1434
	char buf[64];
	unsigned int log_level, mask;
1435

1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448
	simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);

	/* make sure that buf is null terminated */
	buf[sizeof(buf) - 1] = 0;

	ret = sscanf(buf, "%x %u", &mask, &log_level);

	if (!ret)
		return -EINVAL;

	if (ret == 1)
		/* default if user did not specify */
		log_level = ATH10K_DBGLOG_LEVEL_WARN;
1449 1450 1451 1452

	mutex_lock(&ar->conf_mutex);

	ar->debug.fw_dbglog_mask = mask;
1453
	ar->debug.fw_dbglog_level = log_level;
1454 1455

	if (ar->state == ATH10K_STATE_ON) {
1456 1457
		ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
					    ar->debug.fw_dbglog_level);
1458
		if (ret) {
1459
			ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472
				    ret);
			goto exit;
		}
	}

	ret = count;

exit:
	mutex_unlock(&ar->conf_mutex);

	return ret;
}

B
Ben Greear 已提交
1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632
/* TODO:  Would be nice to always support ethtool stats, would need to
 * move the stats storage out of ath10k_debug, or always have ath10k_debug
 * struct available..
 */

/* This generally cooresponds to the debugfs fw_stats file */
static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = {
	"tx_pkts_nic",
	"tx_bytes_nic",
	"rx_pkts_nic",
	"rx_bytes_nic",
	"d_noise_floor",
	"d_cycle_count",
	"d_phy_error",
	"d_rts_bad",
	"d_rts_good",
	"d_tx_power", /* in .5 dbM I think */
	"d_rx_crc_err", /* fcs_bad */
	"d_no_beacon",
	"d_tx_mpdus_queued",
	"d_tx_msdu_queued",
	"d_tx_msdu_dropped",
	"d_local_enqued",
	"d_local_freed",
	"d_tx_ppdu_hw_queued",
	"d_tx_ppdu_reaped",
	"d_tx_fifo_underrun",
	"d_tx_ppdu_abort",
	"d_tx_mpdu_requed",
	"d_tx_excessive_retries",
	"d_tx_hw_rate",
	"d_tx_dropped_sw_retries",
	"d_tx_illegal_rate",
	"d_tx_continuous_xretries",
	"d_tx_timeout",
	"d_tx_mpdu_txop_limit",
	"d_pdev_resets",
	"d_rx_mid_ppdu_route_change",
	"d_rx_status",
	"d_rx_extra_frags_ring0",
	"d_rx_extra_frags_ring1",
	"d_rx_extra_frags_ring2",
	"d_rx_extra_frags_ring3",
	"d_rx_msdu_htt",
	"d_rx_mpdu_htt",
	"d_rx_msdu_stack",
	"d_rx_mpdu_stack",
	"d_rx_phy_err",
	"d_rx_phy_err_drops",
	"d_rx_mpdu_errors", /* FCS, MIC, ENC */
	"d_fw_crash_count",
	"d_fw_warm_reset_count",
	"d_fw_cold_reset_count",
};

#define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats)

void ath10k_debug_get_et_strings(struct ieee80211_hw *hw,
				 struct ieee80211_vif *vif,
				 u32 sset, u8 *data)
{
	if (sset == ETH_SS_STATS)
		memcpy(data, *ath10k_gstrings_stats,
		       sizeof(ath10k_gstrings_stats));
}

int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
				   struct ieee80211_vif *vif, int sset)
{
	if (sset == ETH_SS_STATS)
		return ATH10K_SSTATS_LEN;

	return 0;
}

void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
			       struct ieee80211_vif *vif,
			       struct ethtool_stats *stats, u64 *data)
{
	struct ath10k *ar = hw->priv;
	static const struct ath10k_fw_stats_pdev zero_stats = {};
	const struct ath10k_fw_stats_pdev *pdev_stats;
	int i = 0, ret;

	mutex_lock(&ar->conf_mutex);

	if (ar->state == ATH10K_STATE_ON) {
		ret = ath10k_debug_fw_stats_request(ar);
		if (ret) {
			/* just print a warning and try to use older results */
			ath10k_warn(ar,
				    "failed to get fw stats for ethtool: %d\n",
				    ret);
		}
	}

	pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs,
					      struct ath10k_fw_stats_pdev,
					      list);
	if (!pdev_stats) {
		/* no results available so just return zeroes */
		pdev_stats = &zero_stats;
	}

	spin_lock_bh(&ar->data_lock);

	data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */
	data[i++] = 0; /* tx bytes */
	data[i++] = pdev_stats->htt_mpdus;
	data[i++] = 0; /* rx bytes */
	data[i++] = pdev_stats->ch_noise_floor;
	data[i++] = pdev_stats->cycle_count;
	data[i++] = pdev_stats->phy_err_count;
	data[i++] = pdev_stats->rts_bad;
	data[i++] = pdev_stats->rts_good;
	data[i++] = pdev_stats->chan_tx_power;
	data[i++] = pdev_stats->fcs_bad;
	data[i++] = pdev_stats->no_beacons;
	data[i++] = pdev_stats->mpdu_enqued;
	data[i++] = pdev_stats->msdu_enqued;
	data[i++] = pdev_stats->wmm_drop;
	data[i++] = pdev_stats->local_enqued;
	data[i++] = pdev_stats->local_freed;
	data[i++] = pdev_stats->hw_queued;
	data[i++] = pdev_stats->hw_reaped;
	data[i++] = pdev_stats->underrun;
	data[i++] = pdev_stats->tx_abort;
	data[i++] = pdev_stats->mpdus_requed;
	data[i++] = pdev_stats->tx_ko;
	data[i++] = pdev_stats->data_rc;
	data[i++] = pdev_stats->sw_retry_failure;
	data[i++] = pdev_stats->illgl_rate_phy_err;
	data[i++] = pdev_stats->pdev_cont_xretry;
	data[i++] = pdev_stats->pdev_tx_timeout;
	data[i++] = pdev_stats->txop_ovf;
	data[i++] = pdev_stats->pdev_resets;
	data[i++] = pdev_stats->mid_ppdu_route_change;
	data[i++] = pdev_stats->status_rcvd;
	data[i++] = pdev_stats->r0_frags;
	data[i++] = pdev_stats->r1_frags;
	data[i++] = pdev_stats->r2_frags;
	data[i++] = pdev_stats->r3_frags;
	data[i++] = pdev_stats->htt_msdus;
	data[i++] = pdev_stats->htt_mpdus;
	data[i++] = pdev_stats->loc_msdus;
	data[i++] = pdev_stats->loc_mpdus;
	data[i++] = pdev_stats->phy_errs;
	data[i++] = pdev_stats->phy_err_drop;
	data[i++] = pdev_stats->mpdu_errs;
	data[i++] = ar->stats.fw_crash_counter;
	data[i++] = ar->stats.fw_warm_reset_counter;
	data[i++] = ar->stats.fw_cold_reset_counter;

	spin_unlock_bh(&ar->data_lock);

	mutex_unlock(&ar->conf_mutex);

	WARN_ON(i != ATH10K_SSTATS_LEN);
}

1633 1634 1635 1636 1637 1638 1639 1640
static const struct file_operations fops_fw_dbglog = {
	.read = ath10k_read_fw_dbglog,
	.write = ath10k_write_fw_dbglog,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

K
Kalle Valo 已提交
1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718
static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
{
	struct ath10k *ar = inode->i_private;
	void *buf;
	u32 hi_addr;
	__le32 addr;
	int ret;

	mutex_lock(&ar->conf_mutex);

	if (ar->state != ATH10K_STATE_ON &&
	    ar->state != ATH10K_STATE_UTF) {
		ret = -ENETDOWN;
		goto err;
	}

	buf = vmalloc(QCA988X_CAL_DATA_LEN);
	if (!buf) {
		ret = -ENOMEM;
		goto err;
	}

	hi_addr = host_interest_item_address(HI_ITEM(hi_board_data));

	ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr));
	if (ret) {
		ath10k_warn(ar, "failed to read hi_board_data address: %d\n", ret);
		goto err_vfree;
	}

	ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), buf,
				   QCA988X_CAL_DATA_LEN);
	if (ret) {
		ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
		goto err_vfree;
	}

	file->private_data = buf;

	mutex_unlock(&ar->conf_mutex);

	return 0;

err_vfree:
	vfree(buf);

err:
	mutex_unlock(&ar->conf_mutex);

	return ret;
}

static ssize_t ath10k_debug_cal_data_read(struct file *file,
					  char __user *user_buf,
					  size_t count, loff_t *ppos)
{
	void *buf = file->private_data;

	return simple_read_from_buffer(user_buf, count, ppos,
				       buf, QCA988X_CAL_DATA_LEN);
}

static int ath10k_debug_cal_data_release(struct inode *inode,
					 struct file *file)
{
	vfree(file->private_data);

	return 0;
}

static const struct file_operations fops_cal_data = {
	.open = ath10k_debug_cal_data_open,
	.read = ath10k_debug_cal_data_read,
	.release = ath10k_debug_cal_data_release,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785
static ssize_t ath10k_read_nf_cal_period(struct file *file,
					 char __user *user_buf,
					 size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	unsigned int len;
	char buf[32];

	len = scnprintf(buf, sizeof(buf), "%d\n",
			ar->debug.nf_cal_period);

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

static ssize_t ath10k_write_nf_cal_period(struct file *file,
					  const char __user *user_buf,
					  size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	unsigned long period;
	int ret;

	ret = kstrtoul_from_user(user_buf, count, 0, &period);
	if (ret)
		return ret;

	if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX)
		return -EINVAL;

	/* there's no way to switch back to the firmware default */
	if (period == 0)
		return -EINVAL;

	mutex_lock(&ar->conf_mutex);

	ar->debug.nf_cal_period = period;

	if (ar->state != ATH10K_STATE_ON) {
		/* firmware is not running, nothing else to do */
		ret = count;
		goto exit;
	}

	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period,
					ar->debug.nf_cal_period);
	if (ret) {
		ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n",
			    ret);
		goto exit;
	}

	ret = count;

exit:
	mutex_unlock(&ar->conf_mutex);

	return ret;
}

static const struct file_operations fops_nf_cal_period = {
	.read = ath10k_read_nf_cal_period,
	.write = ath10k_write_nf_cal_period,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

1786 1787
int ath10k_debug_start(struct ath10k *ar)
{
1788 1789
	int ret;

1790 1791
	lockdep_assert_held(&ar->conf_mutex);

1792 1793 1794
	ret = ath10k_debug_htt_stats_req(ar);
	if (ret)
		/* continue normally anyway, this isn't serious */
1795 1796
		ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
			    ret);
1797

1798
	if (ar->debug.fw_dbglog_mask) {
1799 1800
		ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
					    ATH10K_DBGLOG_LEVEL_WARN);
1801 1802
		if (ret)
			/* not serious */
1803
			ath10k_warn(ar, "failed to enable dbglog during start: %d",
1804 1805 1806
				    ret);
	}

1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821
	if (ar->debug.pktlog_filter) {
		ret = ath10k_wmi_pdev_pktlog_enable(ar,
						    ar->debug.pktlog_filter);
		if (ret)
			/* not serious */
			ath10k_warn(ar,
				    "failed to enable pktlog filter %x: %d\n",
				    ar->debug.pktlog_filter, ret);
	} else {
		ret = ath10k_wmi_pdev_pktlog_disable(ar);
		if (ret)
			/* not serious */
			ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
	}

1822 1823 1824 1825 1826 1827 1828 1829 1830 1831
	if (ar->debug.nf_cal_period) {
		ret = ath10k_wmi_pdev_set_param(ar,
						ar->wmi.pdev_param->cal_period,
						ar->debug.nf_cal_period);
		if (ret)
			/* not serious */
			ath10k_warn(ar, "cal period cfg failed from debug start: %d\n",
				    ret);
	}

1832
	return ret;
1833 1834 1835 1836
}

void ath10k_debug_stop(struct ath10k *ar)
{
1837 1838 1839 1840 1841 1842 1843
	lockdep_assert_held(&ar->conf_mutex);

	/* Must not use _sync to avoid deadlock, we do that in
	 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
	 * warning from del_timer(). */
	if (ar->debug.htt_stats_mask != 0)
		cancel_delayed_work(&ar->debug.htt_stats_dwork);
1844 1845 1846

	ar->debug.htt_max_amsdu = 0;
	ar->debug.htt_max_ampdu = 0;
1847 1848

	ath10k_wmi_pdev_pktlog_disable(ar);
1849 1850
}

J
Janusz Dziedzic 已提交
1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930
static ssize_t ath10k_write_simulate_radar(struct file *file,
					   const char __user *user_buf,
					   size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;

	ieee80211_radar_detected(ar->hw);

	return count;
}

static const struct file_operations fops_simulate_radar = {
	.write = ath10k_write_simulate_radar,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

#define ATH10K_DFS_STAT(s, p) (\
	len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
			 ar->debug.dfs_stats.p))

#define ATH10K_DFS_POOL_STAT(s, p) (\
	len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
			 ar->debug.dfs_pool_stats.p))

static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
				     size_t count, loff_t *ppos)
{
	int retval = 0, len = 0;
	const int size = 8000;
	struct ath10k *ar = file->private_data;
	char *buf;

	buf = kzalloc(size, GFP_KERNEL);
	if (buf == NULL)
		return -ENOMEM;

	if (!ar->dfs_detector) {
		len += scnprintf(buf + len, size - len, "DFS not enabled\n");
		goto exit;
	}

	ar->debug.dfs_pool_stats =
			ar->dfs_detector->get_stats(ar->dfs_detector);

	len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");

	ATH10K_DFS_STAT("reported phy errors", phy_errors);
	ATH10K_DFS_STAT("pulse events reported", pulses_total);
	ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
	ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
	ATH10K_DFS_STAT("Radars detected", radar_detected);

	len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
	ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
	ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
	ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
	ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
	ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
	ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
	ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);

exit:
	if (len > size)
		len = size;

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

	return retval;
}

static const struct file_operations fops_dfs_stats = {
	.read = ath10k_read_dfs_stats,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993
static ssize_t ath10k_write_pktlog_filter(struct file *file,
					  const char __user *ubuf,
					  size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	u32 filter;
	int ret;

	if (kstrtouint_from_user(ubuf, count, 0, &filter))
		return -EINVAL;

	mutex_lock(&ar->conf_mutex);

	if (ar->state != ATH10K_STATE_ON) {
		ar->debug.pktlog_filter = filter;
		ret = count;
		goto out;
	}

	if (filter && (filter != ar->debug.pktlog_filter)) {
		ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
		if (ret) {
			ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
				    ar->debug.pktlog_filter, ret);
			goto out;
		}
	} else {
		ret = ath10k_wmi_pdev_pktlog_disable(ar);
		if (ret) {
			ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
			goto out;
		}
	}

	ar->debug.pktlog_filter = filter;
	ret = count;

out:
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
					 size_t count, loff_t *ppos)
{
	char buf[32];
	struct ath10k *ar = file->private_data;
	int len = 0;

	mutex_lock(&ar->conf_mutex);
	len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
			ar->debug.pktlog_filter);
	mutex_unlock(&ar->conf_mutex);

	return simple_read_from_buffer(ubuf, count, ppos, buf, len);
}

static const struct file_operations fops_pktlog_filter = {
	.read = ath10k_read_pktlog_filter,
	.write = ath10k_write_pktlog_filter,
	.open = simple_open
};

1994 1995
int ath10k_debug_create(struct ath10k *ar)
{
1996
	ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
1997 1998
	if (!ar->debug.fw_crash_data)
		return -ENOMEM;
1999

M
Michal Kazior 已提交
2000
	INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
2001
	INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs);
M
Michal Kazior 已提交
2002 2003
	INIT_LIST_HEAD(&ar->debug.fw_stats.peers);

2004 2005 2006 2007 2008 2009 2010
	return 0;
}

void ath10k_debug_destroy(struct ath10k *ar)
{
	vfree(ar->debug.fw_crash_data);
	ar->debug.fw_crash_data = NULL;
M
Michal Kazior 已提交
2011 2012

	ath10k_debug_fw_stats_reset(ar);
2013 2014 2015 2016
}

int ath10k_debug_register(struct ath10k *ar)
{
2017 2018
	ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
						   ar->hw->wiphy->debugfsdir);
2019 2020 2021
	if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
		if (IS_ERR(ar->debug.debugfs_phy))
			return PTR_ERR(ar->debug.debugfs_phy);
2022 2023

		return -ENOMEM;
2024
	}
2025

2026 2027 2028
	INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
			  ath10k_debug_htt_stats_dwork);

2029
	init_completion(&ar->debug.fw_stats_complete);
2030 2031 2032 2033

	debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
			    &fops_fw_stats);

B
Ben Greear 已提交
2034 2035 2036
	debugfs_create_file("fw_reset_stats", S_IRUSR, ar->debug.debugfs_phy,
			    ar, &fops_fw_reset_stats);

2037 2038 2039
	debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
			    &fops_wmi_services);

2040 2041 2042
	debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy,
			    ar, &fops_simulate_fw_crash);

2043 2044 2045
	debugfs_create_file("fw_crash_dump", S_IRUSR, ar->debug.debugfs_phy,
			    ar, &fops_fw_crash_dump);

2046 2047 2048 2049 2050 2051
	debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR,
			    ar->debug.debugfs_phy, ar, &fops_reg_addr);

	debugfs_create_file("reg_value", S_IRUSR | S_IWUSR,
			    ar->debug.debugfs_phy, ar, &fops_reg_value);

2052 2053 2054
	debugfs_create_file("mem_value", S_IRUSR | S_IWUSR,
			    ar->debug.debugfs_phy, ar, &fops_mem_value);

K
Kalle Valo 已提交
2055 2056 2057
	debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
			    ar, &fops_chip_id);

2058 2059 2060
	debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
			    ar, &fops_htt_stats_mask);

2061 2062 2063 2064
	debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR,
			    ar->debug.debugfs_phy, ar,
			    &fops_htt_max_amsdu_ampdu);

2065 2066 2067
	debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy,
			    ar, &fops_fw_dbglog);

K
Kalle Valo 已提交
2068 2069 2070
	debugfs_create_file("cal_data", S_IRUSR, ar->debug.debugfs_phy,
			    ar, &fops_cal_data);

2071 2072 2073
	debugfs_create_file("nf_cal_period", S_IRUSR | S_IWUSR,
			    ar->debug.debugfs_phy, ar, &fops_nf_cal_period);

J
Janusz Dziedzic 已提交
2074 2075 2076 2077 2078
	if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
		debugfs_create_file("dfs_simulate_radar", S_IWUSR,
				    ar->debug.debugfs_phy, ar,
				    &fops_simulate_radar);

2079 2080 2081 2082
		debugfs_create_bool("dfs_block_radar_events", S_IWUSR,
				    ar->debug.debugfs_phy,
				    &ar->dfs_block_radar_events);

J
Janusz Dziedzic 已提交
2083 2084 2085 2086 2087
		debugfs_create_file("dfs_stats", S_IRUSR,
				    ar->debug.debugfs_phy, ar,
				    &fops_dfs_stats);
	}

2088 2089 2090
	debugfs_create_file("pktlog_filter", S_IRUGO | S_IWUSR,
			    ar->debug.debugfs_phy, ar, &fops_pktlog_filter);

2091 2092
	return 0;
}
2093

2094
void ath10k_debug_unregister(struct ath10k *ar)
2095 2096 2097 2098
{
	cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
}

2099 2100 2101
#endif /* CONFIG_ATH10K_DEBUGFS */

#ifdef CONFIG_ATH10K_DEBUG
2102 2103
void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
		const char *fmt, ...)
2104 2105 2106 2107 2108 2109 2110 2111 2112 2113
{
	struct va_format vaf;
	va_list args;

	va_start(args, fmt);

	vaf.fmt = fmt;
	vaf.va = &args;

	if (ath10k_debug_mask & mask)
2114
		dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
2115

2116
	trace_ath10k_log_dbg(ar, mask, &vaf);
2117 2118 2119 2120 2121

	va_end(args);
}
EXPORT_SYMBOL(ath10k_dbg);

2122 2123
void ath10k_dbg_dump(struct ath10k *ar,
		     enum ath10k_debug_mask mask,
2124 2125 2126
		     const char *msg, const char *prefix,
		     const void *buf, size_t len)
{
2127 2128 2129 2130
	char linebuf[256];
	unsigned int linebuflen;
	const void *ptr;

2131 2132
	if (ath10k_debug_mask & mask) {
		if (msg)
2133
			ath10k_dbg(ar, mask, "%s\n", msg);
2134

2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146
		for (ptr = buf; (ptr - buf) < len; ptr += 16) {
			linebuflen = 0;
			linebuflen += scnprintf(linebuf + linebuflen,
						sizeof(linebuf) - linebuflen,
						"%s%08x: ",
						(prefix ? prefix : ""),
						(unsigned int)(ptr - buf));
			hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
					   linebuf + linebuflen,
					   sizeof(linebuf) - linebuflen, true);
			dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
		}
2147 2148 2149
	}

	/* tracing code doesn't like null strings :/ */
2150
	trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
2151 2152 2153 2154 2155
				  buf, len);
}
EXPORT_SYMBOL(ath10k_dbg_dump);

#endif /* CONFIG_ATH10K_DEBUG */