blob: 1b7ff4ba122ce42af61265eae30d8fb98d97201e [file] [log] [blame]
/*
* 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>
#include "core.h"
#include "debug.h"
/* ms */
#define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
static int ath10k_printk(const char *level, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
int rtn;
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
rtn = printk("%sath10k: %pV", level, &vaf);
va_end(args);
return rtn;
}
int ath10k_info(const char *fmt, ...)
{
struct va_format vaf = {
.fmt = fmt,
};
va_list args;
int ret;
va_start(args, fmt);
vaf.va = &args;
ret = ath10k_printk(KERN_INFO, "%pV", &vaf);
trace_ath10k_log_info(&vaf);
va_end(args);
return ret;
}
EXPORT_SYMBOL(ath10k_info);
int ath10k_err(const char *fmt, ...)
{
struct va_format vaf = {
.fmt = fmt,
};
va_list args;
int ret;
va_start(args, fmt);
vaf.va = &args;
ret = ath10k_printk(KERN_ERR, "%pV", &vaf);
trace_ath10k_log_err(&vaf);
va_end(args);
return ret;
}
EXPORT_SYMBOL(ath10k_err);
int ath10k_warn(const char *fmt, ...)
{
struct va_format vaf = {
.fmt = fmt,
};
va_list args;
int ret = 0;
va_start(args, fmt);
vaf.va = &args;
if (net_ratelimit())
ret = ath10k_printk(KERN_WARNING, "%pV", &vaf);
trace_ath10k_log_warn(&vaf);
va_end(args);
return ret;
}
EXPORT_SYMBOL(ath10k_warn);
#ifdef CONFIG_ATH10K_DEBUGFS
void ath10k_debug_read_service_map(struct ath10k *ar,
void *service_map,
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;
unsigned int len = 0, buf_len = 1500;
const char *status;
ssize_t ret_cnt;
int i;
buf = kzalloc(buf_len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
mutex_lock(&ar->conf_mutex);
if (len > buf_len)
len = buf_len;
for (i = 0; i < WMI_SERVICE_LAST; i++) {
if (WMI_SERVICE_IS_ENABLED(ar->debug.wmi_service_bitmap, i))
status = "enabled";
else
status = "disabled";
len += scnprintf(buf + len, buf_len - len,
"0x%02x - %20s - %s\n",
i, wmi_service_name(i), status);
}
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;
struct wmi_pdev_stats_10x *ps;
int i;
spin_lock_bh(&ar->data_lock);
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) {
ps = (struct wmi_pdev_stats_10x *)tmp;
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);
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);
}
}
/* 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) {
struct wmi_peer_stats_10x *peer_stats;
struct ath10k_peer_stat *s;
stats->peers = num_peer_stats;
for (i = 0; i < num_peer_stats; i++) {
peer_stats = (struct wmi_peer_stats_10x *)tmp;
s = &stats->peer_stat[i];
memcpy(s->peer_macaddr, &peer_stats->peer_macaddr.addr,
ETH_ALEN);
s->peer_rssi = __le32_to_cpu(peer_stats->peer_rssi);
s->peer_tx_rate =
__le32_to_cpu(peer_stats->peer_tx_rate);
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);
}
}
}
spin_unlock_bh(&ar->data_lock);
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;
char *buf = NULL;
unsigned int len = 0, buf_len = 8000;
ssize_t ret_cnt = 0;
long left;
int i;
int ret;
fw_stats = &ar->debug.target_stats;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON)
goto exit;
buf = kzalloc(buf_len, GFP_KERNEL);
if (!buf)
goto exit;
ret = ath10k_wmi_request_stats(ar, WMI_REQUEST_PEER_STAT);
if (ret) {
ath10k_warn("could not request stats (%d)\n", ret);
goto exit;
}
left = wait_for_completion_timeout(&ar->debug.event_stats_compl, 1*HZ);
if (left <= 0)
goto exit;
spin_lock_bh(&ar->data_lock);
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);
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);
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");
len += scnprintf(buf + len, buf_len - len, "%30s (%d)\n",
"ath10k PEER stats", fw_stats->peers);
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);
len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
"Peer RX rate",
fw_stats->peer_stat[i].peer_rx_rate);
len += scnprintf(buf + len, buf_len - len, "\n");
}
spin_unlock_bh(&ar->data_lock);
if (len > buf_len)
len = buf_len;
ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
exit:
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,
};
static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
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";
return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
}
/* 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.
*/
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;
char buf[32];
int ret;
mutex_lock(&ar->conf_mutex);
simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
/* make sure that buf is null terminated */
buf[sizeof(buf) - 1] = 0;
if (ar->state != ATH10K_STATE_ON &&
ar->state != ATH10K_STATE_RESTARTED) {
ret = -ENETDOWN;
goto exit;
}
/* drop the possible '\n' from the end */
if (buf[count - 1] == '\n') {
buf[count - 1] = 0;
count--;
}
if (!strcmp(buf, "soft")) {
ath10k_info("simulating soft firmware crash\n");
ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
} else if (!strcmp(buf, "hard")) {
ath10k_info("simulating hard firmware crash\n");
ret = ath10k_wmi_vdev_set_param(ar, TARGET_NUM_VDEVS + 1,
ar->wmi.vdev_param->rts_threshold, 0);
} else {
ret = -EINVAL;
goto exit;
}
if (ret) {
ath10k_warn("failed to simulate firmware crash: %d\n", ret);
goto exit;
}
ret = count;
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,
};
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,
};
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) {
ath10k_warn("failed to send htt stats request: %d\n", ret);
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,
char __user *user_buf,
size_t count, loff_t *ppos)
{
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,
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;
/* 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,
};
static ssize_t ath10k_read_fw_dbglog(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), "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) {
ath10k_warn("dbglog 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_fw_dbglog = {
.read = ath10k_read_fw_dbglog,
.write = ath10k_write_fw_dbglog,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
int ath10k_debug_start(struct ath10k *ar)
{
int ret;
lockdep_assert_held(&ar->conf_mutex);
ret = ath10k_debug_htt_stats_req(ar);
if (ret)
/* continue normally anyway, this isn't serious */
ath10k_warn("failed to start htt stats workqueue: %d\n", ret);
if (ar->debug.fw_dbglog_mask) {
ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
if (ret)
/* not serious */
ath10k_warn("failed to enable dbglog during start: %d",
ret);
}
return 0;
}
void ath10k_debug_stop(struct ath10k *ar)
{
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);
}
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,
};
int ath10k_debug_create(struct ath10k *ar)
{
ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
ar->hw->wiphy->debugfsdir);
if (!ar->debug.debugfs_phy)
return -ENOMEM;
INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
ath10k_debug_htt_stats_dwork);
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);
debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy,
ar, &fops_simulate_fw_crash);
debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
ar, &fops_chip_id);
debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
ar, &fops_htt_stats_mask);
debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy,
ar, &fops_fw_dbglog);
if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
debugfs_create_file("dfs_simulate_radar", S_IWUSR,
ar->debug.debugfs_phy, ar,
&fops_simulate_radar);
debugfs_create_bool("dfs_block_radar_events", S_IWUSR,
ar->debug.debugfs_phy,
&ar->dfs_block_radar_events);
debugfs_create_file("dfs_stats", S_IRUSR,
ar->debug.debugfs_phy, ar,
&fops_dfs_stats);
}
return 0;
}
void ath10k_debug_destroy(struct ath10k *ar)
{
cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
}
#endif /* CONFIG_ATH10K_DEBUGFS */
#ifdef CONFIG_ATH10K_DEBUG
void ath10k_dbg(enum ath10k_debug_mask mask, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
if (ath10k_debug_mask & mask)
ath10k_printk(KERN_DEBUG, "%pV", &vaf);
trace_ath10k_log_dbg(mask, &vaf);
va_end(args);
}
EXPORT_SYMBOL(ath10k_dbg);
void ath10k_dbg_dump(enum ath10k_debug_mask mask,
const char *msg, const char *prefix,
const void *buf, size_t len)
{
if (ath10k_debug_mask & mask) {
if (msg)
ath10k_dbg(mask, "%s\n", msg);
print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
}
/* tracing code doesn't like null strings :/ */
trace_ath10k_log_dbg_dump(msg ? msg : "", prefix ? prefix : "",
buf, len);
}
EXPORT_SYMBOL(ath10k_dbg_dump);
#endif /* CONFIG_ATH10K_DEBUG */