debug.c 37.6 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/version.h>
#include <linux/vermagic.h>
#include <linux/vmalloc.h>
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#include "core.h"
#include "debug.h"
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#include "hif.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.%d.%d.%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,
		    ar->fw_version_major,
		    ar->fw_version_minor,
		    ar->fw_version_release,
		    ar->fw_version_build);
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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

void ath10k_debug_read_service_map(struct ath10k *ar,
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				   const void *service_map,
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				   size_t map_size)
{
	memcpy(ar->debug.wmi_service_bitmap, service_map, map_size);
}

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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	for (i = 0; i < WMI_SERVICE_MAX; i++) {
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		enabled = test_bit(i, ar->debug.wmi_service_bitmap);
		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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	}

	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,
};

void ath10k_debug_read_target_stats(struct ath10k *ar,
				    struct wmi_stats_event *ev)
{
	u8 *tmp = ev->data;
	struct ath10k_target_stats *stats;
	int num_pdev_stats, num_vdev_stats, num_peer_stats;
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	struct wmi_pdev_stats_10x *ps;
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	int i;

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	spin_lock_bh(&ar->data_lock);
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	stats = &ar->debug.target_stats;

	num_pdev_stats = __le32_to_cpu(ev->num_pdev_stats); /* 0 or 1 */
	num_vdev_stats = __le32_to_cpu(ev->num_vdev_stats); /* 0 or max vdevs */
	num_peer_stats = __le32_to_cpu(ev->num_peer_stats); /* 0 or max peers */

	if (num_pdev_stats) {
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		ps = (struct wmi_pdev_stats_10x *)tmp;
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		stats->ch_noise_floor = __le32_to_cpu(ps->chan_nf);
		stats->tx_frame_count = __le32_to_cpu(ps->tx_frame_count);
		stats->rx_frame_count = __le32_to_cpu(ps->rx_frame_count);
		stats->rx_clear_count = __le32_to_cpu(ps->rx_clear_count);
		stats->cycle_count = __le32_to_cpu(ps->cycle_count);
		stats->phy_err_count = __le32_to_cpu(ps->phy_err_count);
		stats->chan_tx_power = __le32_to_cpu(ps->chan_tx_pwr);

		stats->comp_queued = __le32_to_cpu(ps->wal.tx.comp_queued);
		stats->comp_delivered =
			__le32_to_cpu(ps->wal.tx.comp_delivered);
		stats->msdu_enqued = __le32_to_cpu(ps->wal.tx.msdu_enqued);
		stats->mpdu_enqued = __le32_to_cpu(ps->wal.tx.mpdu_enqued);
		stats->wmm_drop = __le32_to_cpu(ps->wal.tx.wmm_drop);
		stats->local_enqued = __le32_to_cpu(ps->wal.tx.local_enqued);
		stats->local_freed = __le32_to_cpu(ps->wal.tx.local_freed);
		stats->hw_queued = __le32_to_cpu(ps->wal.tx.hw_queued);
		stats->hw_reaped = __le32_to_cpu(ps->wal.tx.hw_reaped);
		stats->underrun = __le32_to_cpu(ps->wal.tx.underrun);
		stats->tx_abort = __le32_to_cpu(ps->wal.tx.tx_abort);
		stats->mpdus_requed = __le32_to_cpu(ps->wal.tx.mpdus_requed);
		stats->tx_ko = __le32_to_cpu(ps->wal.tx.tx_ko);
		stats->data_rc = __le32_to_cpu(ps->wal.tx.data_rc);
		stats->self_triggers = __le32_to_cpu(ps->wal.tx.self_triggers);
		stats->sw_retry_failure =
			__le32_to_cpu(ps->wal.tx.sw_retry_failure);
		stats->illgl_rate_phy_err =
			__le32_to_cpu(ps->wal.tx.illgl_rate_phy_err);
		stats->pdev_cont_xretry =
			__le32_to_cpu(ps->wal.tx.pdev_cont_xretry);
		stats->pdev_tx_timeout =
			__le32_to_cpu(ps->wal.tx.pdev_tx_timeout);
		stats->pdev_resets = __le32_to_cpu(ps->wal.tx.pdev_resets);
		stats->phy_underrun = __le32_to_cpu(ps->wal.tx.phy_underrun);
		stats->txop_ovf = __le32_to_cpu(ps->wal.tx.txop_ovf);

		stats->mid_ppdu_route_change =
			__le32_to_cpu(ps->wal.rx.mid_ppdu_route_change);
		stats->status_rcvd = __le32_to_cpu(ps->wal.rx.status_rcvd);
		stats->r0_frags = __le32_to_cpu(ps->wal.rx.r0_frags);
		stats->r1_frags = __le32_to_cpu(ps->wal.rx.r1_frags);
		stats->r2_frags = __le32_to_cpu(ps->wal.rx.r2_frags);
		stats->r3_frags = __le32_to_cpu(ps->wal.rx.r3_frags);
		stats->htt_msdus = __le32_to_cpu(ps->wal.rx.htt_msdus);
		stats->htt_mpdus = __le32_to_cpu(ps->wal.rx.htt_mpdus);
		stats->loc_msdus = __le32_to_cpu(ps->wal.rx.loc_msdus);
		stats->loc_mpdus = __le32_to_cpu(ps->wal.rx.loc_mpdus);
		stats->oversize_amsdu =
			__le32_to_cpu(ps->wal.rx.oversize_amsdu);
		stats->phy_errs = __le32_to_cpu(ps->wal.rx.phy_errs);
		stats->phy_err_drop = __le32_to_cpu(ps->wal.rx.phy_err_drop);
		stats->mpdu_errs = __le32_to_cpu(ps->wal.rx.mpdu_errs);

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		if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
			     ar->fw_features)) {
			stats->ack_rx_bad = __le32_to_cpu(ps->ack_rx_bad);
			stats->rts_bad = __le32_to_cpu(ps->rts_bad);
			stats->rts_good = __le32_to_cpu(ps->rts_good);
			stats->fcs_bad = __le32_to_cpu(ps->fcs_bad);
			stats->no_beacons = __le32_to_cpu(ps->no_beacons);
			stats->mib_int_count = __le32_to_cpu(ps->mib_int_count);
			tmp += sizeof(struct wmi_pdev_stats_10x);
		} else {
			tmp += sizeof(struct wmi_pdev_stats_old);
		}
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	}

	/* 0 or max vdevs */
	/* Currently firmware does not support VDEV stats */
	if (num_vdev_stats) {
		struct wmi_vdev_stats *vdev_stats;

		for (i = 0; i < num_vdev_stats; i++) {
			vdev_stats = (struct wmi_vdev_stats *)tmp;
			tmp += sizeof(struct wmi_vdev_stats);
		}
	}

	if (num_peer_stats) {
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		struct wmi_peer_stats_10x *peer_stats;
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		struct ath10k_peer_stat *s;

		stats->peers = num_peer_stats;

		for (i = 0; i < num_peer_stats; i++) {
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			peer_stats = (struct wmi_peer_stats_10x *)tmp;
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			s = &stats->peer_stat[i];

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			memcpy(s->peer_macaddr, &peer_stats->peer_macaddr.addr,
			       ETH_ALEN);
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			s->peer_rssi = __le32_to_cpu(peer_stats->peer_rssi);
			s->peer_tx_rate =
				__le32_to_cpu(peer_stats->peer_tx_rate);
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			if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
				     ar->fw_features)) {
				s->peer_rx_rate =
					__le32_to_cpu(peer_stats->peer_rx_rate);
				tmp += sizeof(struct wmi_peer_stats_10x);

			} else {
				tmp += sizeof(struct wmi_peer_stats_old);
			}
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		}
	}

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	spin_unlock_bh(&ar->data_lock);
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	complete(&ar->debug.event_stats_compl);
}

static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
				    size_t count, loff_t *ppos)
{
	struct ath10k *ar = file->private_data;
	struct ath10k_target_stats *fw_stats;
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	char *buf = NULL;
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	unsigned int len = 0, buf_len = 8000;
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	ssize_t ret_cnt = 0;
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	long left;
	int i;
	int ret;

	fw_stats = &ar->debug.target_stats;

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	mutex_lock(&ar->conf_mutex);

	if (ar->state != ATH10K_STATE_ON)
		goto exit;

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	buf = kzalloc(buf_len, GFP_KERNEL);
	if (!buf)
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		goto exit;
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	ret = ath10k_wmi_request_stats(ar, WMI_REQUEST_PEER_STAT);
	if (ret) {
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		ath10k_warn(ar, "could not request stats (%d)\n", ret);
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		goto exit;
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	}

	left = wait_for_completion_timeout(&ar->debug.event_stats_compl, 1*HZ);
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	if (left <= 0)
		goto exit;
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	spin_lock_bh(&ar->data_lock);
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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",
			 "Channel noise floor", fw_stats->ch_noise_floor);
	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
			 "Channel TX power", fw_stats->chan_tx_power);
	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
			 "TX frame count", fw_stats->tx_frame_count);
	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
			 "RX frame count", fw_stats->rx_frame_count);
	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
			 "RX clear count", fw_stats->rx_clear_count);
	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
			 "Cycle count", fw_stats->cycle_count);
	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
			 "PHY error count", fw_stats->phy_err_count);
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	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
			 "RTS bad count", fw_stats->rts_bad);
	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
			 "RTS good count", fw_stats->rts_good);
	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
			 "FCS bad count", fw_stats->fcs_bad);
	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
			 "No beacon count", fw_stats->no_beacons);
	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
			 "MIB int count", fw_stats->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",
			 "HTT cookies queued", fw_stats->comp_queued);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "HTT cookies disp.", fw_stats->comp_delivered);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "MSDU queued", fw_stats->msdu_enqued);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "MPDU queued", fw_stats->mpdu_enqued);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "MSDUs dropped", fw_stats->wmm_drop);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Local enqued", fw_stats->local_enqued);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Local freed", fw_stats->local_freed);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "HW queued", fw_stats->hw_queued);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "PPDUs reaped", fw_stats->hw_reaped);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Num underruns", fw_stats->underrun);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "PPDUs cleaned", fw_stats->tx_abort);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "MPDUs requed", fw_stats->mpdus_requed);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Excessive retries", fw_stats->tx_ko);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "HW rate", fw_stats->data_rc);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Sched self tiggers", fw_stats->self_triggers);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Dropped due to SW retries",
			 fw_stats->sw_retry_failure);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Illegal rate phy errors",
			 fw_stats->illgl_rate_phy_err);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Pdev continous xretry", fw_stats->pdev_cont_xretry);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "TX timeout", fw_stats->pdev_tx_timeout);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "PDEV resets", fw_stats->pdev_resets);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "PHY underrun", fw_stats->phy_underrun);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "MPDU is more than txop limit", fw_stats->txop_ovf);

	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",
			 fw_stats->mid_ppdu_route_change);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Tot. number of statuses", fw_stats->status_rcvd);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Extra frags on rings 0", fw_stats->r0_frags);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Extra frags on rings 1", fw_stats->r1_frags);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Extra frags on rings 2", fw_stats->r2_frags);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Extra frags on rings 3", fw_stats->r3_frags);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "MSDUs delivered to HTT", fw_stats->htt_msdus);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "MPDUs delivered to HTT", fw_stats->htt_mpdus);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "MSDUs delivered to stack", fw_stats->loc_msdus);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "MPDUs delivered to stack", fw_stats->loc_mpdus);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "Oversized AMSUs", fw_stats->oversize_amsdu);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "PHY errors", fw_stats->phy_errs);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "PHY errors drops", fw_stats->phy_err_drop);
	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
			 "MPDU errors (FCS, MIC, ENC)", fw_stats->mpdu_errs);

	len += scnprintf(buf + len, buf_len - len, "\n");
B
Ben Greear 已提交
526 527
	len += scnprintf(buf + len, buf_len - len, "%30s (%d)\n",
			 "ath10k PEER stats", fw_stats->peers);
528 529 530 531 532 533 534 535 536 537 538 539
	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
				 "=================");

	for (i = 0; i < fw_stats->peers; i++) {
		len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
				 "Peer MAC address",
				 fw_stats->peer_stat[i].peer_macaddr);
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "Peer RSSI", fw_stats->peer_stat[i].peer_rssi);
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "Peer TX rate",
				 fw_stats->peer_stat[i].peer_tx_rate);
B
Ben Greear 已提交
540 541 542
		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
				 "Peer RX rate",
				 fw_stats->peer_stat[i].peer_rx_rate);
543 544
		len += scnprintf(buf + len, buf_len - len, "\n");
	}
545
	spin_unlock_bh(&ar->data_lock);
546 547 548 549 550 551

	if (len > buf_len)
		len = buf_len;

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

552
exit:
553 554 555 556 557 558 559 560 561 562 563 564
	mutex_unlock(&ar->conf_mutex);
	kfree(buf);
	return ret_cnt;
}

static const struct file_operations fops_fw_stats = {
	.read = ath10k_read_fw_stats,
	.open = simple_open,
	.owner = THIS_MODULE,
	.llseek = default_llseek,
};

565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584
/* 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);
}

585 586 587 588
static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
					     char __user *user_buf,
					     size_t count, loff_t *ppos)
{
589 590 591 592 593
	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"
		"`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n";
594

595 596 597
	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
}

598 599 600 601 602 603 604
/* 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.
 */
605 606 607 608 609
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;
610
	char buf[32];
611 612 613 614 615
	int ret;

	mutex_lock(&ar->conf_mutex);

	simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
616 617 618

	/* make sure that buf is null terminated */
	buf[sizeof(buf) - 1] = 0;
619 620 621 622 623 624 625

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

626 627 628 629 630 631 632
	/* drop the possible '\n' from the end */
	if (buf[count - 1] == '\n') {
		buf[count - 1] = 0;
		count--;
	}

	if (!strcmp(buf, "soft")) {
633
		ath10k_info(ar, "simulating soft firmware crash\n");
634 635
		ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
	} else if (!strcmp(buf, "hard")) {
636
		ath10k_info(ar, "simulating hard firmware crash\n");
637 638 639 640
		/* 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,
641 642
						ar->wmi.vdev_param->rts_threshold,
						0);
643 644 645
	} else if (!strcmp(buf, "assert")) {
		ath10k_info(ar, "simulating firmware assert crash\n");
		ret = ath10k_debug_fw_assert(ar);
646 647 648 649
	} else {
		ret = -EINVAL;
		goto exit;
	}
650

651
	if (ret) {
652
		ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
653 654
		goto exit;
	}
655

656
	ret = count;
657 658 659 660 661 662 663 664 665 666 667 668 669 670

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
671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689
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,
};

690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821
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));

	dump_data->kernel_ver_code = cpu_to_le32(LINUX_VERSION_CODE);
	strlcpy(dump_data->kernel_ver, VERMAGIC_STRING,
		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,
};

822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840
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) {
841
		ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863
		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,
864 865
					  char __user *user_buf,
					  size_t count, loff_t *ppos)
866 867 868 869 870 871 872 873 874 875 876
{
	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,
877 878
					   const char __user *user_buf,
					   size_t count, loff_t *ppos)
879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915
{
	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,
};

916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981
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,
};

982
static ssize_t ath10k_read_fw_dbglog(struct file *file,
983 984
				     char __user *user_buf,
				     size_t count, loff_t *ppos)
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
{
	struct ath10k *ar = file->private_data;
	unsigned int len;
	char buf[32];

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

	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;
	unsigned long mask;
	int ret;

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

	mutex_lock(&ar->conf_mutex);

	ar->debug.fw_dbglog_mask = mask;

	if (ar->state == ATH10K_STATE_ON) {
		ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
		if (ret) {
1015
			ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036
				    ret);
			goto exit;
		}
	}

	ret = count;

exit:
	mutex_unlock(&ar->conf_mutex);

	return ret;
}

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
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
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,
};

1115 1116
int ath10k_debug_start(struct ath10k *ar)
{
1117 1118
	int ret;

1119 1120
	lockdep_assert_held(&ar->conf_mutex);

1121 1122 1123
	ret = ath10k_debug_htt_stats_req(ar);
	if (ret)
		/* continue normally anyway, this isn't serious */
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		ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
			    ret);
1126

1127 1128 1129 1130
	if (ar->debug.fw_dbglog_mask) {
		ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
		if (ret)
			/* not serious */
1131
			ath10k_warn(ar, "failed to enable dbglog during start: %d",
1132 1133 1134
				    ret);
	}

1135 1136 1137 1138 1139
	return 0;
}

void ath10k_debug_stop(struct ath10k *ar)
{
1140 1141 1142 1143 1144 1145 1146
	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);
1147 1148 1149

	ar->debug.htt_max_amsdu = 0;
	ar->debug.htt_max_ampdu = 0;
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}

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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,
};

1232 1233
int ath10k_debug_create(struct ath10k *ar)
{
1234
	ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
1235 1236
	if (!ar->debug.fw_crash_data)
		return -ENOMEM;
1237

1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248
	return 0;
}

void ath10k_debug_destroy(struct ath10k *ar)
{
	vfree(ar->debug.fw_crash_data);
	ar->debug.fw_crash_data = NULL;
}

int ath10k_debug_register(struct ath10k *ar)
{
1249 1250
	ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
						   ar->hw->wiphy->debugfsdir);
1251 1252 1253
	if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
		if (IS_ERR(ar->debug.debugfs_phy))
			return PTR_ERR(ar->debug.debugfs_phy);
1254 1255

		return -ENOMEM;
1256
	}
1257

1258 1259 1260
	INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
			  ath10k_debug_htt_stats_dwork);

1261 1262 1263 1264 1265 1266 1267 1268
	init_completion(&ar->debug.event_stats_compl);

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

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

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

1272 1273 1274
	debugfs_create_file("fw_crash_dump", S_IRUSR, ar->debug.debugfs_phy,
			    ar, &fops_fw_crash_dump);

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	debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
			    ar, &fops_chip_id);

1278 1279 1280
	debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
			    ar, &fops_htt_stats_mask);

1281 1282 1283 1284
	debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR,
			    ar->debug.debugfs_phy, ar,
			    &fops_htt_max_amsdu_ampdu);

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

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	debugfs_create_file("cal_data", S_IRUSR, ar->debug.debugfs_phy,
			    ar, &fops_cal_data);

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	if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
		debugfs_create_file("dfs_simulate_radar", S_IWUSR,
				    ar->debug.debugfs_phy, ar,
				    &fops_simulate_radar);

1296 1297 1298 1299
		debugfs_create_bool("dfs_block_radar_events", S_IWUSR,
				    ar->debug.debugfs_phy,
				    &ar->dfs_block_radar_events);

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		debugfs_create_file("dfs_stats", S_IRUSR,
				    ar->debug.debugfs_phy, ar,
				    &fops_dfs_stats);
	}

1305 1306
	return 0;
}
1307

1308
void ath10k_debug_unregister(struct ath10k *ar)
1309 1310 1311 1312
{
	cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
}

1313 1314 1315
#endif /* CONFIG_ATH10K_DEBUGFS */

#ifdef CONFIG_ATH10K_DEBUG
1316 1317
void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
		const char *fmt, ...)
1318 1319 1320 1321 1322 1323 1324 1325 1326 1327
{
	struct va_format vaf;
	va_list args;

	va_start(args, fmt);

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

	if (ath10k_debug_mask & mask)
1328
		dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
1329

1330
	trace_ath10k_log_dbg(ar, mask, &vaf);
1331 1332 1333 1334 1335

	va_end(args);
}
EXPORT_SYMBOL(ath10k_dbg);

1336 1337
void ath10k_dbg_dump(struct ath10k *ar,
		     enum ath10k_debug_mask mask,
1338 1339 1340
		     const char *msg, const char *prefix,
		     const void *buf, size_t len)
{
1341 1342 1343 1344
	char linebuf[256];
	unsigned int linebuflen;
	const void *ptr;

1345 1346
	if (ath10k_debug_mask & mask) {
		if (msg)
1347
			ath10k_dbg(ar, mask, "%s\n", msg);
1348

1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360
		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);
		}
1361 1362 1363
	}

	/* tracing code doesn't like null strings :/ */
1364
	trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
1365 1366 1367 1368 1369
				  buf, len);
}
EXPORT_SYMBOL(ath10k_dbg_dump);

#endif /* CONFIG_ATH10K_DEBUG */